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Valer-Martinez A, Sayon-Orea C, Martinez JA, Basterra-Gortari FJ, Martinez-Gonzalez MA, Bes-Rastrollo M. Vitamin D and risk of developing type 2 diabetes in the SUN project: a prospective cohort study. J Endocrinol Invest 2024:10.1007/s40618-024-02324-3. [PMID: 38459212 DOI: 10.1007/s40618-024-02324-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 01/28/2024] [Indexed: 03/10/2024]
Abstract
PURPOSE Vitamin D deficiency has been associated with multiple chronic diseases, including metabolic disorders such as insulin resistance and type 2 diabetes (T2D). The aim of the study was to analyze the association between validated predicted serum vitamin D status and the risk of developing T2D in a large prospective cohort based on a Mediterranean population. METHODS The SUN project is a prospective and dynamic Spanish cohort that gathers university graduates who have answered lifestyle questionnaires, including a validated Food Frequency Questionnaire. The association between predicted serum vitamin D and the risk of T2D was assessed through Cox regression models according to quartiles (Q) of predicted vitamin D at baseline. The models were adjusted for potential confounders and sensitivity analyses were performed to ensure the robustness of our findings. RESULTS Our study included a total of 18,594 participants and after a total follow-up of 238,078 person-years (median follow-up of 13.5 years), 209 individuals were diagnosed with incident T2D. We found a significant inverse association between predicted levels of serum vitamin D and the risk of developing T2D, after adjusting for potential confounders and performing different sensitivity analyses (hazard ratio Q4 vs. Q1: 0.48, 95% CI 0.26-0.88; p for trend = 0.032). CONCLUSION The outcomes suggest that higher levels of vitamin D at baseline may be associated with a reduced risk of developing T2D.
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Affiliation(s)
- A Valer-Martinez
- Department of Preventive Medicine and Public Health, University of Navarra, Pamplona, Spain
- Department of Family Medicine, Aragon Health Service (SALUD), Zaragoza, Spain
| | - C Sayon-Orea
- Department of Preventive Medicine and Public Health, University of Navarra, Pamplona, Spain.
- CIBERobn, Instituto de Salud Carlos III, Madrid, Spain.
- IdiSNa, Navarra Institute for Health Research, Universidad de Navarra, C/Irunlarrea, 1 (Ed. Investigación), 31008, Pamplona, Navarra, Spain.
- Navarra Public Health Institute, Pamplona, Spain.
| | - J A Martinez
- Institute IMDEA Food, Madrid, Spain
- Department of Nutrition, Food Science and Physiology/Centre for Nutrition Research, University of Navarra, Pamplona, Spain
| | - F J Basterra-Gortari
- Department of Preventive Medicine and Public Health, University of Navarra, Pamplona, Spain
- IdiSNa, Navarra Institute for Health Research, Universidad de Navarra, C/Irunlarrea, 1 (Ed. Investigación), 31008, Pamplona, Navarra, Spain
- Department of Endocrinology and Nutrition, Hospital Universitario de Navarra, Universidad Pública de Navarra, Pamplona, Spain
| | - M A Martinez-Gonzalez
- Department of Preventive Medicine and Public Health, University of Navarra, Pamplona, Spain
- CIBERobn, Instituto de Salud Carlos III, Madrid, Spain
- IdiSNa, Navarra Institute for Health Research, Universidad de Navarra, C/Irunlarrea, 1 (Ed. Investigación), 31008, Pamplona, Navarra, Spain
- Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - M Bes-Rastrollo
- Department of Preventive Medicine and Public Health, University of Navarra, Pamplona, Spain
- CIBERobn, Instituto de Salud Carlos III, Madrid, Spain
- IdiSNa, Navarra Institute for Health Research, Universidad de Navarra, C/Irunlarrea, 1 (Ed. Investigación), 31008, Pamplona, Navarra, Spain
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Herrera S, Torralbo B, Herranz S, Bernal-Maurandi J, Rubio E, Pitart C, Fortes I, Valls S, Rodríguez L, Santana G, Bodro M, Garcia-Vidal C, Hernández-Meneses M, Puerta P, Morata L, Villella A, Bertran MJ, Brey M, Soriano A, Del Río A, Martinez JA. Carriage of multidrug-resistant Gram-negative bacilli: duration and risk factors. Eur J Clin Microbiol Infect Dis 2023; 42:631-638. [PMID: 36964885 DOI: 10.1007/s10096-023-04581-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 02/24/2023] [Indexed: 03/26/2023]
Abstract
Identification of risk factors influencing the duration of carriage of multidrug-resistant Gram-negative bacilli (MDR-GNB) may be useful for infection control. The aim of this study is to estimate the impact of several factors collected for routine hospital surveillance on the duration of carriage of selected MDR-GNB. From January 2015 to July 2021, patients with at least two clinical/surveillance samples positive for MDR-GNB different from ESBL-producing E. coli or AmpC - exclusively producing Enterobacterales were assessed. Microorganisms, age, number of admissions, clinical or rectal sample, sex, and admission service were evaluated as risk factors. Multivariate analysis was performed by a Cox proportional hazard model. A total of 1981 episodes of colonization were included. Involved microorganisms were ESBL-Klebsiella pneumoniae (KP) in 1057 cases (53.4%), other ESBL-non-E. coli Enterobacterales in 91 (4.6%), OXA-48-KP in 263 (13.3%), KPC-KP in 90 (4.5%), VIM-KP in 29 (1.5%), carbapenemase-producing non-KP Enterobacterales (CP-non-KP) in 124 (6.3%), and MDR Pseudomonas aeruginosa (MDR-PAER) in 327 (16.5%). No differences in duration of colonization were observed among ESBL-KP (median colonization time 320 days), ESBL-non-E. coli Enterobacterales (226 days), OXA48-KP (305 days), and MDR-PAER (321 days). For each group, duration of colonization was significantly longer than that of KPC-KP (median colonization time 60 days), VIM-KP (138 days), and CP-non-KP (71 days). Male sex (HR = 0.88; 95% CI 0.78-0.99), detection in Hepatology-Gastroenterology (HR = 0.71; 95% CI 0.54-0.93), clinical sample (HR = 0.61; 95% CI 0.53-0.69), and > 2 admissions after first detection (HR = 0.47; 95% CI 0.42-0.52) were independent predictors of longer carriage, whereas VIM-KP (HR = 1.61; 95% CI 1.04-2.48), KPC-KP (HR = 1.85; 95% CI 1.49-2.3), and CP-non-KP (HR = 1.92; 95% CI 1.49-2.47) were associated with shorter colonization time. Duration of colonization was significantly longer for ESBL-KP, other ESBL-non-E. coli Enterobacterales, OXA-48-KP, and MDR-PAER. For these microorganisms, prolonging surveillance up to 2.5-3 years should be considered. Male sex, clinical sample, multiple readmissions, admission service, and type of microorganism are independent predictors of the duration of carriage.
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Affiliation(s)
- S Herrera
- Department of Infectious Diseases, Hospital Clinic of Barcelona-IDIBAPS, C. de Villarroel, 170, 08036, Barcelona, Spain
| | - B Torralbo
- Preventive Medicine, Hospital Clinic of Barcelona-IDIBAPS, Barcelona, Spain
| | - S Herranz
- Preventive Medicine, Hospital Clinic of Barcelona-IDIBAPS, Barcelona, Spain
| | - J Bernal-Maurandi
- Department of Infectious Diseases, Hospital Clinic of Barcelona-IDIBAPS, C. de Villarroel, 170, 08036, Barcelona, Spain
| | - E Rubio
- Department of Microbiology, Hospital Clinic, University of Barcelona, ISGLOBAL, Barcelona, Spain
| | - C Pitart
- Department of Microbiology, Hospital Clinic, University of Barcelona, ISGLOBAL, Barcelona, Spain
| | - I Fortes
- Preventive Medicine, Hospital Clinic of Barcelona-IDIBAPS, Barcelona, Spain
| | - S Valls
- Preventive Medicine, Hospital Clinic of Barcelona-IDIBAPS, Barcelona, Spain
| | - L Rodríguez
- Preventive Medicine, Hospital Clinic of Barcelona-IDIBAPS, Barcelona, Spain
| | - G Santana
- Preventive Medicine, Hospital Clinic of Barcelona-IDIBAPS, Barcelona, Spain
| | - M Bodro
- Department of Infectious Diseases, Hospital Clinic of Barcelona-IDIBAPS, C. de Villarroel, 170, 08036, Barcelona, Spain
| | - C Garcia-Vidal
- Department of Infectious Diseases, Hospital Clinic of Barcelona-IDIBAPS, C. de Villarroel, 170, 08036, Barcelona, Spain
| | - M Hernández-Meneses
- Department of Infectious Diseases, Hospital Clinic of Barcelona-IDIBAPS, C. de Villarroel, 170, 08036, Barcelona, Spain
| | - P Puerta
- Department of Infectious Diseases, Hospital Clinic of Barcelona-IDIBAPS, C. de Villarroel, 170, 08036, Barcelona, Spain
| | - L Morata
- Department of Infectious Diseases, Hospital Clinic of Barcelona-IDIBAPS, C. de Villarroel, 170, 08036, Barcelona, Spain
| | - A Villella
- Preventive Medicine, Hospital Clinic of Barcelona-IDIBAPS, Barcelona, Spain
| | - M J Bertran
- Preventive Medicine, Hospital Clinic of Barcelona-IDIBAPS, Barcelona, Spain
| | - M Brey
- Department of Infectious Diseases, Hospital Clinic of Barcelona-IDIBAPS, C. de Villarroel, 170, 08036, Barcelona, Spain
| | - A Soriano
- Department of Infectious Diseases, Hospital Clinic of Barcelona-IDIBAPS, C. de Villarroel, 170, 08036, Barcelona, Spain
| | - A Del Río
- Department of Infectious Diseases, Hospital Clinic of Barcelona-IDIBAPS, C. de Villarroel, 170, 08036, Barcelona, Spain
| | - J A Martinez
- Department of Infectious Diseases, Hospital Clinic of Barcelona-IDIBAPS, C. de Villarroel, 170, 08036, Barcelona, Spain.
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Hazbun L, Martinez JA, Best TM, Kaplan L, Huang CY. Anti-inflammatory effects of tibial axial loading on knee articular cartilage post traumatic injury. J Biomech 2021; 128:110736. [PMID: 34537673 DOI: 10.1016/j.jbiomech.2021.110736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/06/2021] [Accepted: 09/01/2021] [Indexed: 12/28/2022]
Abstract
Early therapeutic intervention to mitigate inflammatory responses following joint injury may offer a potential strategy to prevent post-traumatic osteoarthritis (PTOA). In-vitro studies have demonstrated uniaxial dynamic compression mitigates the catabolic and apoptotic responses of articular cartilage (AC) in response to mechanical injury. The objectives of this study were (1) to develop a custom device that can apply dynamic tibial axial loading (TAL) to knee AC by mimicking therapeutic, in-vitro loading conditions and (2) to investigate the potential of TAL to reduce the inflammatory response of AC post traumatic acute joint injury using an ex-vivo porcine model. A TAL device was fabricated to apply dynamic compressive loading to knee AC by combining tibial axial compressive loading with continuous passive motion. Computational analyses demonstrated that the loading condition applied to the knee by the TAL device closely simulate uniaxial dynamic compression reported in previous in-vitro studies. Following single impact injury, injured porcine knees were subjected to TAL with a magnitude of 1/4 body weight at a frequency of 1 Hz for 30 min. AC samples were harvested 8 h post injury for analysis of pro-inflammatory cytokine expression (IL-1β and TNF-α). Expression of both cytokines was upregulated following injury; however, the change was notably mitigated in the specimens subjected to TAL. Thus, TAL may be an effective and potentially, practical-to-administer early intervention strategy to mitigate rapidly occurring detrimental events following acute AC injury, potentially slowing down progression to PTOA.
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Affiliation(s)
- Larry Hazbun
- Department of Biomedical Engineering, College of Engineering, University of Miami, Coral Gables, FL, USA
| | - Jose A Martinez
- Department of Biomedical Engineering, College of Engineering, University of Miami, Coral Gables, FL, USA
| | - Thomas M Best
- Department of Biomedical Engineering, College of Engineering, University of Miami, Coral Gables, FL, USA; Department of Orthopaedics, University of Miami Miller School of Medicine, Miami, FL, USA; UHealth Sports Medicine Institute, University of Miami, Miami, FL, USA
| | - Lee Kaplan
- Department of Biomedical Engineering, College of Engineering, University of Miami, Coral Gables, FL, USA; Department of Orthopaedics, University of Miami Miller School of Medicine, Miami, FL, USA; UHealth Sports Medicine Institute, University of Miami, Miami, FL, USA
| | - Chun-Yuh Huang
- Department of Biomedical Engineering, College of Engineering, University of Miami, Coral Gables, FL, USA; UHealth Sports Medicine Institute, University of Miami, Miami, FL, USA.
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Marin-Alejandre BA, Cantero I, Perez-Diaz-Del-Campo N, Monreal JI, Elorz M, Herrero JI, Benito-Boillos A, Quiroga J, Martinez-Echeverria A, Uriz-Otano JI, Huarte-Muniesa MP, Tur JA, Martinez JA, Abete I, Zulet MA. Effects of two personalized dietary strategies during a 2-year intervention in subjects with nonalcoholic fatty liver disease: A randomized trial. Liver Int 2021; 41:1532-1544. [PMID: 33550706 DOI: 10.1111/liv.14818] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 01/11/2021] [Accepted: 01/27/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND AND OBJECTIVES Nonalcoholic fatty liver disease (NAFLD) management is focused on lifestyle modifications, but long-term maintenance is a challenge for many individuals. This study aimed to evaluate the long-term effects of two personalized energy-restricted dietary strategies on weight loss, metabolic and hepatic outcomes in overweight/obese subjects with NAFLD. METHODS Ninety-eight subjects from the Fatty Liver in Obesity (FLiO) study (NCT03183193) were randomly assigned to the American Heart Association (AHA) or the FLiO dietary group in a 2-year controlled trial. Anthropometry, body composition (DXA), biochemical parameters and hepatic status (ultrasonography, Magnetic Resonance Imaging, and elastography) were assessed at baseline, 6, 12 and 24 months. RESULTS Both the AHA and FLiO diets significantly reduced body weight at 6 (-9.7% vs -10.1%), 12 (-6.7% vs -9.6%), and 24 months (-4.8% vs -7.6%) with significant improvements in body composition, biochemical and liver determinations throughout the intervention. At the end of the follow-up, the FLiO group showed a greater decrease in ALT, liver stiffness and Fatty Liver Index, among others, compared to AHA group, although these differences were attenuated when the analyses were adjusted by weight loss percentage. The FLiO group also showed a greater increase in adiponectin compared to AHA group. CONCLUSIONS The AHA and FLiO diets were able to improve body weight and body composition, as well as metabolic and hepatic status of participants with overweight/obesity and NAFLD within a 2-year follow-up. These findings show that both strategies are suitable alternatives for NAFLD management. However, the FLiO strategy may provide more persistent benefits in metabolic and hepatic parameters.
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Affiliation(s)
- Bertha A Marin-Alejandre
- Department of Nutrition, Food Sciences and Physiology and Centre for Nutrition Research, Faculty of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
| | - Irene Cantero
- Department of Nutrition, Food Sciences and Physiology and Centre for Nutrition Research, Faculty of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
| | - Nuria Perez-Diaz-Del-Campo
- Department of Nutrition, Food Sciences and Physiology and Centre for Nutrition Research, Faculty of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
| | - Jose I Monreal
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Clinical Chemistry Department, Clinica Universidad de Navarra, Pamplona, Spain
| | - Mariana Elorz
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Department of Radiology, Clinica Universidad de Navarra, Pamplona, Spain
| | - Jose I Herrero
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Liver Unit, Clinica Universidad de Navarra, Pamplona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
| | - Alberto Benito-Boillos
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Department of Radiology, Clinica Universidad de Navarra, Pamplona, Spain
| | - Jorge Quiroga
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain.,Department of Internal Medicine, Clinica Universidad de Navarra, Pamplona, Spain
| | - Ana Martinez-Echeverria
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Department of Gastroenterology, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - Juan I Uriz-Otano
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Department of Gastroenterology, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - Maria P Huarte-Muniesa
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Department of Gastroenterology, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - Josep A Tur
- Research Group on Community Nutrition and Oxidative Stress, University of Balearic Islands & Balearic Islands Institute for Health Research (IDISBA), Palma, Spain.,Biomedical Research Centre Network in Physiopathology of Obesity and Nutrition (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Jose A Martinez
- Department of Nutrition, Food Sciences and Physiology and Centre for Nutrition Research, Faculty of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.,Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Biomedical Research Centre Network in Physiopathology of Obesity and Nutrition (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Itziar Abete
- Department of Nutrition, Food Sciences and Physiology and Centre for Nutrition Research, Faculty of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.,Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Biomedical Research Centre Network in Physiopathology of Obesity and Nutrition (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Maria A Zulet
- Department of Nutrition, Food Sciences and Physiology and Centre for Nutrition Research, Faculty of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.,Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Biomedical Research Centre Network in Physiopathology of Obesity and Nutrition (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
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Fernandez-Baizan C, Prieto MA, Martinez JA, Arias JL, Mendez M. Evaluation of Visuospatial Short-term and Working Memory from the First to Second Year of Life: A Novel Task. Dev Neuropsychol 2021; 46:16-32. [PMID: 33393380 DOI: 10.1080/87565641.2020.1869744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The prototypical tasks for assessing visuospatial memory in infancy are based on the search for a hidden object in two locations. Fewer studies include more locations, delayed responses nor changes in the object's position. Our aim was to assess the visuospatial short-term and working memory in 12, 15, 18 and 22-month-old children (N = 65). Assessment included our experimental task, a working memory task and a cognitive developmental scale. Short-term and working memory abilities increased markedly at 22 months compared to younger ages and the performance of the children in our experimental task is related to other tasks previously used.
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Affiliation(s)
- C Fernandez-Baizan
- Neuroscience Institute of Principado De Asturias (INEUROPA) , Oviedo, Spain.,Department of Psychology, University of Oviedo , Oviedo, Spain
| | - Miguel Angel Prieto
- Neuroscience Institute of Principado De Asturias (INEUROPA) , Oviedo, Spain.,Department of Electronic Technology, University of Oviedo , Oviedo, Spain
| | - J A Martinez
- Neuroscience Institute of Principado De Asturias (INEUROPA) , Oviedo, Spain.,Department of Electronic Technology, University of Oviedo , Oviedo, Spain
| | - J L Arias
- Neuroscience Institute of Principado De Asturias (INEUROPA) , Oviedo, Spain.,Department of Psychology, University of Oviedo , Oviedo, Spain
| | - M Mendez
- Neuroscience Institute of Principado De Asturias (INEUROPA) , Oviedo, Spain.,Department of Psychology, University of Oviedo , Oviedo, Spain
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Fernandez-Baizan C, Caunedo-Jimenez M, Martinez JA, Arias JL, Mendez M, Solis G. Development of visuospatial memory in preterm infants: A new paradigm to assess short-term and working memory. Child Neuropsychol 2020; 27:296-316. [PMID: 33191857 DOI: 10.1080/09297049.2020.1847264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Preterm infants have a higher risk of showing visuospatial memory impairment, the function that allows to encode and remember visual and spatial information. It has been studied in late childhood in preterm children. Studies on visuospatial memory throughout the first 2 years of life are still scarce. Behavior, temperament, and overall cognition could be altered in preterm children affecting memory performance. Therefore, the main aim of this study was to evaluate short-term and visuospatial working memory performance in a preterm sample followed longitudinally at 12, 15, 18, and 22 months (N = 15), and compare their performance with that of full-term children (N = 65). The secondary aim was to analyze the course of mnesic development in preterm infants and relate their memory performance to other cognitive abilities and behavioral tendencies. Assessment included previously published tasks and an experimental paradigm. Results showed that preterm children scored lower than full-term children on visuospatial short-term and working memory at 12 and 22 months of age, although these results varied depending on the memory test used. Preterm children's memory results showed that these skills improve in this population between the first and second year of life. Finally, memory performance was directly associated with the level of cognitive development and the presence of proactive behaviors, while being inversely correlated with the presence of disruptive behaviors and a difficult temperamental style. These preliminary findings suggest that it is possible to detect visuospatial memory difficulties in the preterm population before the age of two.
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Affiliation(s)
- C Fernandez-Baizan
- Neuroscience Institute of Principado de Asturias (INEUROPA), University of Oviedo, Oviedo, Spain.,Department of Psychology, University of Oviedo, Oviedo, Spain
| | - M Caunedo-Jimenez
- Pediatric Clinic Area, Neonatology, University Central Hospital of Asturias, Oviedo, Spain
| | - J A Martinez
- Neuroscience Institute of Principado de Asturias (INEUROPA), University of Oviedo, Oviedo, Spain.,Department of Electronic Technology, University of Oviedo, Gijón, Spain
| | - J L Arias
- Neuroscience Institute of Principado de Asturias (INEUROPA), University of Oviedo, Oviedo, Spain.,Department of Psychology, University of Oviedo, Oviedo, Spain
| | - M Mendez
- Neuroscience Institute of Principado de Asturias (INEUROPA), University of Oviedo, Oviedo, Spain.,Department of Psychology, University of Oviedo, Oviedo, Spain
| | - G Solis
- Neuroscience Institute of Principado de Asturias (INEUROPA), University of Oviedo, Oviedo, Spain.,Pediatric Clinic Area, Neonatology, University Central Hospital of Asturias, Oviedo, Spain
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Martinez JA, Stopeck AT, Chow HHS, Wertheim BC, Chew W, Roe DJ, Chalasani P, Thompson PA. Oxylipins Correlate with Quality of Life in Women Taking Aromatase Inhibitors for Breast Cancer. Cancer Epidemiol Biomarkers Prev 2020. [DOI: 10.1158/1055-9965.epi-20-0054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Abstract
The purpose of this study was to determine if oxylipins – oxygenated bioactive lipid metabolites of ω-3 and ω-6 fatty acids with varying roles in inflammation and pain – correlate with aromatase inhibitor-associated arthralgia (AIA) and quality of life (QOL) in early stage breast cancer (ESBC) patients. Methods: ESBC patients on AI therapy were enrolled to an open-label study of sulindac, a non-steroidal anti-inflammatory drug (NSAID), for 12 months (n = 47). Pre-intervention arthralgia and physical function were assessed using the Western Ontario and McMaster Universities Osteoarthritis (WOMAC) questionnaire, where higher scores indicate worse symptoms. The Functional Assessment of Cancer Therapy – General (FACT-G) questionnaire was used to assess QOL, where higher scores indicate better QOL. A total of 53 plasma oxylipins in plasma were quantified by mass spectrometry. Pearson's correlation was used to measure the association between pre-intervention oxylipin concentrations, arthralgias and QOL. Results: Prior to initiating sulindac, baseline levels of 17 oxylipins were found to be significantly correlated with QOL scales. This included inverse associations between QOL and seven pro-inflammatory products of ω-6 fatty acid metabolism. Notably, prostaglandin E2, the primary target of NSAIDs, was negatively correlated with Social Well-Being (rho = −0.30; P = 0.04). Conversely, resolvin D1, a potent anti-inflammatory lipid, was positively associated with Total FACT-G (rho = 0.31; P = 0.03) and Emotional Well-Being (rho = 0.37; P = 0.01). Two ω-3 metabolites with unknown mechanisms were correlated with both QOL and WOMAC; 19,20-DiHDPE was positively correlated with Total (rho = 0.34; P = 0.02) and Social FACT-G (rho = 0.32; P = 0.03), and inversely with Total WOMAC (rho = -0.303; P = 0.04) and Stiffness (rho = −0.32; P = 0.03); and 5(6)-DiHETE was inversely correlated with Social FACT-G (rho = −0.33; P = 0.02) and positively with Total WOMAC (rho = 0.31; P = 0.04). Conclusions: This is the first evidence that plasma oxylipin metabolites of ω-3/ω-6 fatty acids correlate with QOL and arthralgia symptoms in patients on AIs and suggests oxylipins as a potential novel target for improving QOL and adherence to AI therapy in patients with ESBC.
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Palop L, Vega N, Rodriguez T, Fernandez A, Rodriguez JC, Plaza C, Hortal L, Perdomo M, Baamonde E, Perez P, Martinez JA. Nutritional Status of Capd Patients at Three Years. Perit Dial Int 2020. [DOI: 10.1177/089686089601601s37] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
A nutritional assessment was carried out in 63 patients starting treatment from April 1990 up to December 1993. Anthropometric measurements were performed showing a prevalence of protein-calorie malnutrition (PCM) of 21 % in a total of 142 clinical surveys carried out in the above-mentioned sample. A steady state of albumin levels in plasma was verified during a three-year follow-up period at a lower level than that of the control group. The patients’ lymphocytic profile throughout the study was characterized by lymphopenia and decreased B and T 8 lymphocytes. During the first two years of continuous ambulatory peritoneal dialysis (CAPD), a high percentage of patients met the “adequacy” dialysis criteria as residual renal function plays an important role as regards treatment.
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Affiliation(s)
- Leocadia Palop
- Nephrology Service, Las Palmas De Gran Canaria, ‘slas Canarias
| | - Nicanor Vega
- Nephrology Service, Las Palmas De Gran Canaria, ‘slas Canarias
| | - Teresa Rodriguez
- Laboratory Service, Hospital Nuestra Señora Del Pino, Las Palmas De Gran Canaria, ‘slas Canarias
| | - Ana Fernandez
- Nephrology Service, Las Palmas De Gran Canaria, ‘slas Canarias
| | | | - Celia Plaza
- Nephrology Service, Las Palmas De Gran Canaria, ‘slas Canarias
| | - Luis Hortal
- Nephrology Service, Las Palmas De Gran Canaria, ‘slas Canarias
| | - Miguel Perdomo
- Nephrology Service, Las Palmas De Gran Canaria, ‘slas Canarias
| | | | - Patricia Perez
- Nephrology Service, Las Palmas De Gran Canaria, ‘slas Canarias
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Singh RP, Hsueh J, Han MM, Kuriyan AE, Conti FF, Steinle N, Weng CY, Wong RW, Martinez JA, Wykoff CC. Protecting Vision in Patients With Diabetes With Ultra-Widefield Imaging: A Review of Current Literature. Ophthalmic Surg Lasers Imaging Retina 2019; 50:639-648. [DOI: 10.3928/23258160-20191009-07] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 03/25/2019] [Indexed: 11/20/2022]
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Abstract
PURPOSE OF REVIEW The aim of this report is to critically review existing questionnaires and tools to assess nutritional status in different populations and pathological conditions. RECENT FINDINGS A total of 16 instruments to evaluate nutritional status were recorded, which were based on anthropometrical determinations, biochemical markers, clinical examinations and subjective questionnaires, depending on the nutritional assessment focus, involving different concepts: screening of the risk, diagnosis and severity of malnutrition, as well as the consequences of undernutrition or overnutrition. SUMMARY A variety of questionnaires, equations and tools were found with ability to assess nutritional status for metabolic care or clinical nutrition purposes, but apparently there is no optimal, universal and reliable nutritional status screening system for all metabolic conditions. Novel assessment instruments should provide high sensibility and specificity, be precise and reliable as well as inexpensive and simple, in order to avoid the additional burden of excessive loads of costs, work and time while dynamically overcoming the influence of disease diversity.
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Affiliation(s)
- Daniel J Taberna
- Centre for Nutrition Research, Department of Nutrition, Food Science and Physiology, University of Navarra, C/Irunlarrea, Pamplona
| | - Santiago Navas-Carretero
- Centre for Nutrition Research, Department of Nutrition, Food Science and Physiology, University of Navarra, C/Irunlarrea, Pamplona
- CIBERobn, Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Pabellón 11. Planta, Madrid
- Navarra Health Research Institute (IDISNA), Recinto de Complejo Hospitalario de Navarra (Edificio LUNA-Navarrabiomed) C/Irunlarrea, Pamplona
| | - Jose A Martinez
- Centre for Nutrition Research, Department of Nutrition, Food Science and Physiology, University of Navarra, C/Irunlarrea, Pamplona
- CIBERobn, Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Pabellón 11. Planta, Madrid
- Navarra Health Research Institute (IDISNA), Recinto de Complejo Hospitalario de Navarra (Edificio LUNA-Navarrabiomed) C/Irunlarrea, Pamplona
- Program for Precision Nutrition, IMDEA, Carr. de Cantoblanco, Madrid, Spain
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Martinez-Aispuro JA, Mendoza GD, Cordero JL, Ayala MA, Hernandez PA, Martinez JA. PSVII-6 Effects dietary herbal vitamin E on lamb performance, ruminal fermentation, blood biochemical profile, and meat oxidative stability. J Anim Sci 2019. [DOI: 10.1093/jas/skz122.284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
The objective of this experiment was to evaluate four levels of a natural vitamin E on lamb performance, blood metabolites, rumen metabolism and meat quality characteristics. Thirty-six male lambs (29.24 SD 2.54 kg Hampshire x Suffolk) were used in a completely randomized experimental design. Treatments consisted of dietary inclusion of Herbal E-50 (Nuproxa) at 0, 1, 2 and 3 g/kg dry matter (DM) for for 60 days in lambs that did not receive any additional source of vitamin E. A quadratic response was observed on daily gain, final body weight, feed conversion, intake blood cholesterol and glucose. The estimated optimal level of herbal E obtained of herbal E levels for average daily gain was 1.76 ± 0.10 g/kg and 1.84 ± 0.77 g/kg for feed conversion. Ruminal pH and the major volatile fatty acids were not affected by herbal E. A quadratic response was observed on blood cholesterol (P < 0.10) and glucose (P < 0.01). Dietary herbal E increased linearly counts of erythrocytes (P < 0.05), platelet (P < 0.10), proteins and globulins (P < 0.01) whereas the albumin/globulin ratio was linearly reduced (P < 0.01). Meat texture was improved (quadratic; P < 0.05) and the reducing/antioxidant capacity was improved linearly (P < 0.001) with herbal E. Redness measured at 7 d was also improved with herbal E (P < 0.05; lineal effect). The lamb performance can be improved with 1.8 g/kg Herbal E 50 in finishing lamb diets. The inclusion of herbal E feed plant additive improved the daily gain in finishing lambs, feed efficiency and improved meat oxidative stability.
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Huttunen-Lenz M, Hansen S, Larsen TM, Christensen P, Drummen M, Adam T, Taylor MA, Simpson E, Martinez JA, Navas-Carretero S, Handjieva-Darlenska T, Poppitt SD, Silvestre MP, Fogelholm M, Jalo E, Muirhead R, Brodie S, Raben A, Schlicht W. The PREVIEW Study. European Journal of Health Psychology 2019. [DOI: 10.1027/2512-8442/a000026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Abstract. Individuals at risk of Type 2 Diabetes are advised to change health habits. This study investigated how the PREMIT behavior modification intervention and its association with socio-economic variables influenced weight maintenance and habit strength in the PREVIEW study. Overweight adults with pre-diabetes were enrolled ( n = 2,224) in a multi-center RCT including a 2-month weight-loss phase and a 34-month weight-maintenance phase for those who lost ≥ 8% body weight. Initial stages of the PREMIT covered the end of weight-loss and the beginning of weight-maintenance phase (18 weeks). Cross-sectional and longitudinal data were explored. Frequent PREMIT sessions attendance, being female, and lower habit strength for poor diet were associated with lower weight re-gain. Being older and not in employment were associated with lower habit strength for physical inactivity. The PREMIT appeared to support weight loss maintenance. Younger participants, males, and those in employment appeared to struggle more with inactivity habit change and weight maintenance.
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Affiliation(s)
- Maija Huttunen-Lenz
- Department of Exercise and Health Sciences, University of Stuttgart, Germany
| | - Sylvia Hansen
- Department of Exercise and Health Sciences, University of Stuttgart, Germany
| | | | - Pia Christensen
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark
| | - Mathijs Drummen
- Department of Nutrition and Movement Sciences, Maastricht University, The Netherlands
| | - Tanja Adam
- Department of Nutrition and Movement Sciences, Maastricht University, The Netherlands
| | - Moira A. Taylor
- School of Life Sciences, University of Nottingham, United Kingdom
| | | | - Jose A. Martinez
- Centre for Nutrition Research, University of Navarra, Pamplona, Spain
- CIBER Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Santiago Navas-Carretero
- Centre for Nutrition Research, University of Navarra, Pamplona, Spain
- CIBER Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | | | - Sally D. Poppitt
- School of Biological Sciences, University of Auckland, Human Nutrition Unit, New Zealand
| | - Marta P. Silvestre
- School of Biological Sciences, University of Auckland, Human Nutrition Unit, New Zealand
| | - Mikael Fogelholm
- Department of Food and Nutrition, University of Helsinki, Finland
| | - Elli Jalo
- Department of Food and Nutrition, University of Helsinki, Finland
| | - Roslyn Muirhead
- Charles Perkins Centre and School of Life and Environmental Biosciences, University of Sydney, Australia
| | - Shannon Brodie
- Charles Perkins Centre and School of Life and Environmental Biosciences, University of Sydney, Australia
| | - Anne Raben
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark
| | - Wolfgang Schlicht
- Department of Exercise and Health Sciences, University of Stuttgart, Germany
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Figueroa JL, Martinez JA, Sanchez-Torres MT, Cordero JL, Martinez M, Valdez VM, Ruiz A. Evaluation of reduced amino acids diets added with protected protease on productive performance in 25-100 kg barrows. AUSTRAL J VET SCI 2019. [DOI: 10.4067/s0719-81322019000200053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Samblas M, Milagro FI, Mansego ML, Marti A, Martinez JA. PTPRS and PER3 methylation levels are associated with childhood obesity: results from a genome-wide methylation analysis. Pediatr Obes 2018; 13:149-158. [PMID: 28614626 DOI: 10.1111/ijpo.12224] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 04/07/2017] [Accepted: 05/01/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND The global prevalence of childhood overweight and obesity has increased in the last years. Epigenetic dysregulation affecting gene expression could be a determinant in early-life obesity onset and accompanying complications. OBJECTIVE The aim of the present investigation was to analyse the putative association between DNA methylation and childhood obesity. METHODS DNA was isolated from white blood cells of 24 children obtained from the GENOI study and was hybridized in a 450K methylation array. Two CpG sites associated with obesity were validated in 91 children by MassArray® EpiTyper™ technology. RESULTS Genome-wide analysis identified 734 CpGs (783 genes) differentially methylated between cases (n = 12) and controls (n = 12). Ingenuity Pathway Analysis showed that these genes were involved in oxidative stress and circadian rhythm signalling pathways. Moreover, the DNA methylation levels of VIPR2, GRIN2D, ADCYAP1R1, PER3 and PTPRS regions correlated with the obesity trait. EpiTyper™ validation also identified significant correlations between methylation levels of CpG sites on PTPRS and PER3 with BMI z-score. CONCLUSIONS This study identified several CpG sites and specifically several CpGs in the PTPRS and PER3 genes differentially methylated between obese and non-obese children, suggesting a role for DNA methylation concerning development of childhood obesity.
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Affiliation(s)
- M Samblas
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,Centre for Nutrition Research, University of Navarra, Pamplona, Spain
| | - F I Milagro
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,Centre for Nutrition Research, University of Navarra, Pamplona, Spain.,CIBERobn, Physiopathology of Obesity, Carlos III Institute, Madrid, Spain
| | - M L Mansego
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,Centre for Nutrition Research, University of Navarra, Pamplona, Spain
| | - A Marti
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,CIBERobn, Physiopathology of Obesity, Carlos III Institute, Madrid, Spain.,IdiSNA, Navarra's Health Research Institute, Pamplona, Spain
| | - J A Martinez
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,Centre for Nutrition Research, University of Navarra, Pamplona, Spain.,CIBERobn, Physiopathology of Obesity, Carlos III Institute, Madrid, Spain.,IdiSNA, Navarra's Health Research Institute, Pamplona, Spain
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Ramos-Lopez O, Riezu-Boj JI, Milagro FI, Goni L, Cuervo M, Martinez JA. Differential lipid metabolism outcomes associated with ADRB2 gene polymorphisms in response to two dietary interventions in overweight/obese subjects. Nutr Metab Cardiovasc Dis 2018; 28:165-172. [PMID: 29331538 DOI: 10.1016/j.numecd.2017.11.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 10/26/2017] [Accepted: 11/27/2017] [Indexed: 01/27/2023]
Abstract
BACKGROUND AND AIMS A precise nutrigenetic management of hypercholesterolemia involves the understanding of the interactions between the individual's genotype and dietary intake. The aim of this study was to analyze the response to two dietary energy-restricted interventions on cholesterol changes in carriers of two ADRB2 polymorphisms. METHODS AND RESULTS A 4-month nutritional intervention was conducted involving two different hypo-energetic diets based on low-fat (LF) and moderately high-protein (MHP) dietary patterns. A total of 107 unrelated overweight/obese individuals were genotyped for two ADRB2 non-synonymous polymorphisms: Arg16Gly (rs1042713) and Gln27Glu (rs1042714). Genotyping was performed by next-generation sequencing and haplotypes were phenotypically screened. Anthropometric measurements and the biochemical profile were assessed by conventional methods. Both diets induced cholesterol decreases at the end of both nutritional interventions. Interestingly, phenotypical differences were observed according to the Arg16Gly polymorphism. Within the MHP group, Gly16Gly homozygotes had lower reductions in total cholesterol (-6.5 mg/dL vs. -24.2 mg/dL, p = 0.009), LDL-c levels (-1.4 mg/dL vs. -16.5 mg/dL, p = 0.005), and non-HDL-c (-4.5 mg/dL vs. -21.5 mg/dL, p = 0.008) than Arg16 allele carriers. Conversely, within the LF group, Gly16Gly homozygotes underwent similar falls in total cholesterol (-18.5 mg/dL vs. -18.7 mg/dL, ns), LDL-c levels (-9.7 mg/dL vs. -13.1 mg/dL, ns), and non-HDL-c (-15.3 mg/dL vs. -15.7 mg/dL, ns) than Arg16 allele carriers. The Gln27Glu polymorphism and the Gly16/Glu27 haplotype showed similar, but not greater effects. CONCLUSIONS An energy-restricted LF diet could be more beneficial than a MHP diet to reduce serum cholesterol, LDL-c, and non-HDL-c among Gly16Gly genotype carriers. CLINICALTRIALS.GOV: Identifier: NCT02737267.
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Affiliation(s)
- O Ramos-Lopez
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain; Center for Nutrition Research, University of Navarra, Pamplona, Spain
| | - J I Riezu-Boj
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain; Center for Nutrition Research, University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - F I Milagro
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain; Center for Nutrition Research, University of Navarra, Pamplona, Spain; Biomedical Research Centre Network in Physiopathology of Obesity and Nutrition (CIBERobn), Carlos III Institute, Madrid, Spain
| | - L Goni
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain; Center for Nutrition Research, University of Navarra, Pamplona, Spain
| | - M Cuervo
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain; Center for Nutrition Research, University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IdiSNA), Pamplona, Spain; Biomedical Research Centre Network in Physiopathology of Obesity and Nutrition (CIBERobn), Carlos III Institute, Madrid, Spain
| | - J A Martinez
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain; Center for Nutrition Research, University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IdiSNA), Pamplona, Spain; Biomedical Research Centre Network in Physiopathology of Obesity and Nutrition (CIBERobn), Carlos III Institute, Madrid, Spain; Madrid Institute of Advanced Studies (IMDEA Food), Madrid, Spain.
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16
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Ramos-Lopez O, Riezu-Boj JI, Milagro FI, Goni L, Cuervo M, Martinez JA. Association of the Gly482Ser PPARGC1A gene variant with different cholesterol outcomes in response to two energy-restricted diets in subjects with excessive weight. Nutrition 2018; 47:83-89. [PMID: 29429541 DOI: 10.1016/j.nut.2017.10.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 09/13/2017] [Accepted: 10/10/2017] [Indexed: 12/21/2022]
Abstract
OBJECTIVES The aim of this study was to investigate the influence of two PPARGC1A gene polymorphisms on metabolic outcomes in response to two energy-restricted diets. METHODS A 4-mo nutritional intervention was conducted that involved two different hypo-energetic diets based on low-fat (LF) and moderately high-protein (MHP) dietary patterns. Unrelated subjects with excessive weight were genotyped for two PPARGC1A polymorphisms: Rs8192678 (Gly482Ser) and rs3755863 (G > A). Genotyping was performed by next-generation sequencing and haplotypes were screened. Anthropometric measurements and biochemical tests were assessed with standardized methods. RESULTS Different cholesterol outcomes were observed by diet and Gly482Ser genotype. The Gly482 Gly homozygotes after an LF diet had lower reductions in total cholesterol (-9 mg/dL vs. -27 mg/dL; P = 0.017) and low-density lipoprotein cholesterol levels (-5 mg/dL vs. -18 mg/dL; P = 0.016) than the subjects who were carriers of 482 Ser allele. However, this finding was not recorded in the MHP group where Gly482 Gly homozygotes underwent similar cholesterol decreases as the 482 Ser allele carriers. Likewise, all genotype carriers had significant reductions in the frequencies of hypercholesterolemia (total cholesterol ≥200 mg/dL) except for Gly482 Gly homozygotes in the LF group. Meanwhile, the rs3755863 polymorphism and PPARGC1A haplotypes showed borderline effects with regard to cholesterol decreases. CONCLUSIONS An energy-restricted MHP diet might be more beneficial than an LF diet to reduce serum cholesterol among subjects who are carriers of the PPARGC1A Gly482Gly genotype. The analysis of this genetic variant might be the basis for a precise, nutrigenetic management of hypercholesterolemia based on genetic makeup.
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Affiliation(s)
- Omar Ramos-Lopez
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, Pamplona, Spain
| | - Jose I Riezu-Boj
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Fermin I Milagro
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, Pamplona, Spain; Biomedical Research Centre Network in Physiopathology of Obesity and Nutrition (CIBERobn), Carlos III Institute, Madrid, Spain
| | - Leticia Goni
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, Pamplona, Spain
| | - Marta Cuervo
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IdiSNA), Pamplona, Spain; Biomedical Research Centre Network in Physiopathology of Obesity and Nutrition (CIBERobn), Carlos III Institute, Madrid, Spain
| | - Jose A Martinez
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IdiSNA), Pamplona, Spain; Biomedical Research Centre Network in Physiopathology of Obesity and Nutrition (CIBERobn), Carlos III Institute, Madrid, Spain; Madrid Institute of Advanced Studies (IMDEA Food), Madrid, Spain.
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Milholland MT, Castro-Arellano I, Arellano E, Nava-García E, Rangel-Altamirano G, Gonzalez-Cozatl FX, Suzán G, Schountz T, González-Padrón S, Vigueras A, Rubio AV, Maikis TJ, Westrich BJ, Martinez JA, Esteve-Gassent MD, Torres M, Rodriguez-Ruiz ER, Hahn D, Lacher TE. Species Identity Supersedes the Dilution Effect Concerning Hantavirus Prevalence at Sites across Texas and México. ILAR J 2017; 58:401-412. [PMID: 29635404 PMCID: PMC6279172 DOI: 10.1093/ilar/ily001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 12/28/2017] [Accepted: 01/09/2018] [Indexed: 01/16/2023] Open
Abstract
Recent models suggest a relationship exists between community diversity and pathogen prevalence, the proportion of individuals in a population that are infected by a pathogen, with most inferences tied to assemblage structure. Two contrasting outcomes of this relationship have been proposed: the "dilution effect" and the "amplification effect." Small mammal assemblage structure in disturbed habitats often differs from assemblages in sylvan environments, and hantavirus prevalence is often negatively correlated with habitats containing high species diversity via dilution effect dynamics. As species richness increases, prevalence of infection often is decreased. However, anthropogenic changes to sylvan landscapes have been shown to decrease species richness and/or increase phylogenetic similarities within assemblages. Between January 2011 and January 2016, we captured and tested 2406 individual small mammals for hantavirus antibodies at 20 sites across Texas and México and compared differences in hantavirus seroprevalence, species composition, and assemblage structure between sylvan and disturbed habitats. We found 313 small mammals positive for antibodies against hantaviruses, evincing an overall prevalence of 9.7% across all sites. In total, 40 species of small mammals were identified comprising 2 taxonomic orders (Rodentia and Eulipotyphla). By sampling both habitat types concurrently, we were able to make real-world inferences into the efficacy of dilution effect theory in terms of hantavirus ecology. Our hypothesis predicting greater species richness higher in sylvan habitats compared to disturbed areas was not supported, suggesting the characteristics of assemblage structure do not adhere to current conceptions of species richness negatively influencing prevalence via a dilution effect.
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Affiliation(s)
- Matthew T Milholland
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Iván Castro-Arellano
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Elizabeth Arellano
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Elizabeth Nava-García
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Guadalupe Rangel-Altamirano
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Francisco X Gonzalez-Cozatl
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Gerardo Suzán
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Tony Schountz
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Shiara González-Padrón
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Ana Vigueras
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - André V Rubio
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Troy J Maikis
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Bradford J Westrich
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Jose A Martinez
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Maria D Esteve-Gassent
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Madison Torres
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Erick R Rodriguez-Ruiz
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Dittmar Hahn
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
| | - Thomas E Lacher
- Matthew T. Milholland, PhD, is a Postdoctoral fellow with Texas State University’s Department of Biology in San Marcos, Texas. Iván Castro-Arellano, PhD, is an Associate Professor with Texas State University’s Department of Biology in San Marcos, Texas. Elizabeth Arellano, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Elizabeth Nava-García is a graduate student at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Guadalupe Rangel-Altamirano is an Academic Technitian at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Francisco X. Gonzalez-Cozatl, PhD, is a Professor at Centro de Investigación en Biodiversidad y Conservación, at Universidad Autónoma del Estado de Morelos in Cuernavaca, México. Gerardo Suzán is a Professor at Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Tony Schountz, PhD, is an Associate Professor with the Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology, and Pathology College of Veterinary Medicine and Biomedical Sciences at Colorado State University, Fort Collins, Colorado. Shiara González-Padrón is a graduate student at the Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología at Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. Ana Vigueras is a graduate student del Departamento de Etología y Fauna Silvestre, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México. André V. Rubio, PhD, is an Assistant Professor at the Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Nuñoa, Chile. Troy J. Maikis is a Biologist living in Elko, Nevada. Bradford J. Westrich is Assistant Furbearer Biologist for the Indiana Department of Natural Resources, Bloomington, Indiana. Jose A. Martinez III is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Maria D. Esteve-Gasent, PhD, is an Assistant Professor with the Departament of Veterinary Pathobiology at Texas A&M University, College Station, Texas. Madison Torres is a graduate student with Texas State University’s Department of Biology, San Marcos, Texas. Erick R. Rodriguez-Ruiz is a graduate student at Divison de Posgrado, Instituto Tecnólogico de Ciudad Victoria, México. Dittmar Hahn, PhD, is Professor and Chair of Texas State University’s Department of Biology, San Marcos, Texas. Thomas E. Lacher, Jr. is a Professor in the Department of Wildlife and Fisheries Sciences at Texas A&M University, College Station, Texas, and Associate Conservation Scientist at Global Wildlife Conservation, Austin, Texas
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Kobayashi M, Chandrasekhar A, Cheng C, Martinez JA, Ng H, de la Hoz C, Zochodne DW. Diabetic polyneuropathy, sensory neurons, nuclear structure and spliceosome alterations: a role for CWC22. Dis Model Mech 2017; 10:215-224. [PMID: 28250049 PMCID: PMC5374325 DOI: 10.1242/dmm.028225] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 12/23/2016] [Indexed: 12/31/2022] Open
Abstract
Unique deficits in the function of adult sensory neurons as part of their early neurodegeneration might account for progressive polyneuropathy during chronic diabetes mellitus. Here, we provide structural and functional evidence for aberrant pre-mRNA splicing in a chronic type 1 model of experimental diabetic polyneuropathy (DPN). Cajal bodies (CBs), unique nuclear substructures involved in RNA splicing, increased in number in diabetic sensory neurons, but their expected colocalization with survival motor neuron (SMN) proteins was reduced - a mislocalization described in motor neurons of spinal muscular atrophy. Small nuclear ribonucleoprotein particles (snRNPs), also participants in the spliceosome, had abnormal multiple nuclear foci unassociated with CBs, and their associated snRNAs were reduced. CWC22, a key spliceosome protein, was aberrantly upregulated in diabetic dorsal root ganglia (DRG), and impaired neuronal function. CWC22 attenuated sensory neuron plasticity, with knockdown in vitro enhancing their neurite outgrowth. Further, axonal delivery of CWC22 siRNA unilaterally to locally knock down the aberrant protein in diabetic nerves improved aspects of sensory function in diabetic mice. Collectively, our findings identify subtle but significant alterations in spliceosome structure and function, including dysregulated CBs and CWC22 overexpression, in diabetic sensory neurons that offer new ideas regarding diabetic sensory neurodegeneration in polyneuropathy.
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Affiliation(s)
- Masaki Kobayashi
- Division of Neurology and Department of Medicine, Faculty of Medicine and Dentistry, and the Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Canada, T6G 2G3
| | - Ambika Chandrasekhar
- Division of Neurology and Department of Medicine, Faculty of Medicine and Dentistry, and the Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Canada, T6G 2G3
| | - Chu Cheng
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, Faculty of Medicine, University of Calgary, Canada, T2N 4N1
| | - Jose A Martinez
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, Faculty of Medicine, University of Calgary, Canada, T2N 4N1
| | - Hilarie Ng
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, Faculty of Medicine, University of Calgary, Canada, T2N 4N1
| | - Cristiane de la Hoz
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, Faculty of Medicine, University of Calgary, Canada, T2N 4N1
| | - Douglas W Zochodne
- Division of Neurology and Department of Medicine, Faculty of Medicine and Dentistry, and the Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Canada, T6G 2G3 .,Hotchkiss Brain Institute and Department of Clinical Neurosciences, Faculty of Medicine, University of Calgary, Canada, T2N 4N1
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Ramos-Lopez O, Arpón A, Riezu-Boj JI, Milagro FI, Mansego ML, Martinez JA. DNA methylation patterns at sweet taste transducing genes are associated with BMI and carbohydrate intake in an adult population. Appetite 2017; 120:230-239. [PMID: 28888730 DOI: 10.1016/j.appet.2017.09.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 08/09/2017] [Accepted: 09/05/2017] [Indexed: 02/07/2023]
Abstract
Individual differences in taste perception may influence appetite, dietary intakes, and subsequently, disease risk. Correlations of DNA methylation patterns at taste transducing genes with BMI and dietary intakes were studied. A nutriepigenomic analysis within the Methyl Epigenome Network Association (MENA) project was conducted in 474 adults. DNA methylation in peripheral white blood cells was analyzed by a microarray approach. KEGG pathway analyses were performed concerning the characterization and discrimination of genes involved in the taste transduction pathway. Adjusted FDR values (p < 0.0001) were used to select those CpGs that showed best correlation with BMI. A total of 29 CpGs at taste transducing genes met the FDR criteria. However, only 12 CpGs remained statistically significant after linear regression analyses adjusted for age and sex. These included cg15743657 (TAS1R2), cg02743674 (TRPM5), cg01790523 (SCN9A), cg15947487 (CALHM1), cg11658986 (ADCY6), cg04149773 (ADCY6), cg02841941 (P2RY1), cg02315111 (P2RX2), cg08273233 (HTR1E), cg14523238 (GABBR2), cg12315353 (GABBR1) and cg05579652 (CACNA1C). Interestingly, most of them were implicated in the sweet taste signaling pathway, except CACNA1C (sour taste). In addition, TAS1R2 methylation at cg15743657 was strongly correlated with total energy (p < 0.0001) and carbohydrate intakes (p < 0.0001). This study suggests that methylation in genes related to sweet taste could be an epigenetic mechanism associated with obesity.
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Affiliation(s)
- O Ramos-Lopez
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, Pamplona, Spain
| | - A Arpón
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, Pamplona, Spain
| | - J I Riezu-Boj
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - F I Milagro
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, Pamplona, Spain; Biomedical Research Centre Network in Physiopathology of Obesity and Nutrition (CIBERobn), Carlos III Institute, Madrid, Spain
| | - M L Mansego
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, Pamplona, Spain
| | - J A Martinez
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IdiSNA), Pamplona, Spain; Biomedical Research Centre Network in Physiopathology of Obesity and Nutrition (CIBERobn), Carlos III Institute, Madrid, Spain; Madrid Institute of Advanced Studies (IMDEA Food), Madrid, Spain.
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García-Calzón S, Moleres A, Gómez-Martinez S, Diaz LE, Bueno G, Campoy C, Martinez JA, Marcos A, Azcona-Sanjulián MC, Zalba G, Marti A. Association of telomere length with IL-6 levels during an obesity treatment in adolescents: interaction with the-174G/C polymorphism in the IL-6gene. Pediatr Obes 2017; 12:257-263. [PMID: 27071798 DOI: 10.1111/ijpo.12136] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Revised: 02/08/2016] [Accepted: 03/09/2016] [Indexed: 11/27/2022]
Abstract
BACKGROUND Shorter telomeres have been associated with elevated risk for age-related diseases. However, little is known about the biomarker role of telomere length (TL) for predicting inflammation and glucose alterations. OBJECTIVE The objective of this research is to evaluate the association between TL, inflammatory markers and glucose levels after a 2-month weight-loss programme in obese adolescents. METHODS Telomere length was measured using a quantitative polymerase chain reaction in 66 obese adolescents aged 12-17 years (51% men) from the EVASYON programme. The adolescents were genotyped for the polymorphism -174G/C (rs1800795) in the IL-6gene, and anthropometric and biochemical markers as well as inflammatory cytokines were analysed. RESULTS Multiple-adjusted models showed that longer telomeres at baseline were associated with a higher reduction in glucose (B = -4.08, 95% confidence interval: -6.66 to -1.50) and IL-6 (B = -1.03, 95% confidence interval: -2.01 to -0.05) serum levels after 2 months of the weight-loss treatment. The -174G/C polymorphism modulated the association between basal TL and changes in IL-6 (P interaction = 0.029). Thus, subjects with the GG + GC genotype and with longer telomeres showed a higher decrease in IL-6 levels than CC homozygotes. CONCLUSION Longer telomeres are associated with an improvement in glucose tolerance and inflammation after a weight-loss programme in obese adolescents. Moreover, the -174G/C polymorphism may influence the relationship between TL and IL-6 changes.
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Affiliation(s)
- S García-Calzón
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,IdiSNA Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain
| | | | - S Gómez-Martinez
- Immunonutrition Research Group, Department of Metabolism and Nutrition, Institute of Food Science, Technology, and Nutrition, Spanish National Research Council, Madrid, Spain
| | - L E Diaz
- Immunonutrition Research Group, Department of Metabolism and Nutrition, Institute of Food Science, Technology, and Nutrition, Spanish National Research Council, Madrid, Spain
| | - G Bueno
- Growth, Exercise, Nutrition and Development (GENUD) Research Group, Facultad de Ciencias de la Salud, University of Zaragoza, Zaragoza, Spain
| | - C Campoy
- Pediatric Department, Medicine School, Universidad de Granada, Granada, Spain
| | - J A Martinez
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,IdiSNA Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - A Marcos
- Immunonutrition Research Group, Department of Metabolism and Nutrition, Institute of Food Science, Technology, and Nutrition, Spanish National Research Council, Madrid, Spain
| | - M C Azcona-Sanjulián
- Pediatric Endocrinology Unit, Department of Paediatrics, University of Navarra Hospital, Pamplona, Spain
| | - G Zalba
- IdiSNA Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain.,Department of Biochemistry and Genetics, University of Navarra, Pamplona, Spain
| | - A Marti
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,IdiSNA Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
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Stewardson AJ, Allignol A, Beyersmann J, Graves N, Schumacher M, Meyer R, Tacconelli E, De Angelis G, Farina C, Pezzoli F, Bertrand X, Gbaguidi-Haore H, Edgeworth J, Tosas O, Martinez JA, Ayala-Blanco MP, Pan A, Zoncada A, Marwick CA, Nathwani D, Seifert H, Hos N, Hagel S, Pletz M, Harbarth S. The health and economic burden of bloodstream infections caused by antimicrobial-susceptible and non-susceptible Enterobacteriaceae and Staphylococcus aureus in European hospitals, 2010 and 2011: a multicentre retrospective cohort study. ACTA ACUST UNITED AC 2017; 21:30319. [PMID: 27562950 PMCID: PMC4998424 DOI: 10.2807/1560-7917.es.2016.21.33.30319] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 04/20/2016] [Indexed: 01/21/2023]
Abstract
We performed a multicentre retrospective cohort study including 606,649 acute inpatient episodes at 10 European hospitals in 2010 and 2011 to estimate the impact of antimicrobial resistance on hospital mortality, excess length of stay (LOS) and cost. Bloodstream infections (BSI) caused by third-generation cephalosporin-resistant Enterobacteriaceae (3GCRE), meticillin-susceptible (MSSA) and -resistant Staphylococcus aureus (MRSA) increased the daily risk of hospital death (adjusted hazard ratio (HR) = 1.80; 95% confidence interval (CI): 1.34–2.42, HR = 1.81; 95% CI: 1.49–2.20 and HR = 2.42; 95% CI: 1.66–3.51, respectively) and prolonged LOS (9.3 days; 95% CI: 9.2–9.4, 11.5 days; 95% CI: 11.5–11.6 and 13.3 days; 95% CI: 13.2–13.4, respectively). BSI with third-generation cephalosporin-susceptible Enterobacteriaceae (3GCSE) significantly increased LOS (5.9 days; 95% CI: 5.8–5.9) but not hazard of death (1.16; 95% CI: 0.98–1.36). 3GCRE significantly increased the hazard of death (1.63; 95% CI: 1.13–2.35), excess LOS (4.9 days; 95% CI: 1.1–8.7) and cost compared with susceptible strains, whereas meticillin resistance did not. The annual cost of 3GCRE BSI was higher than of MRSA BSI. While BSI with S. aureus had greater impact on mortality, excess LOS and cost than Enterobacteriaceae per infection, the impact of antimicrobial resistance was greater for Enterobacteriaceae.
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Affiliation(s)
- Andrew J Stewardson
- Infection Control Program, University of Geneva Hospitals and Faculty of Medicine, Geneva, Switzerland
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Mansego ML, Garcia-Lacarte M, Milagro FI, Marti A, Martinez JA. DNA methylation of miRNA coding sequences putatively associated with childhood obesity. Pediatr Obes 2017; 12:19-27. [PMID: 26780939 DOI: 10.1111/ijpo.12101] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 12/04/2015] [Accepted: 12/09/2015] [Indexed: 01/08/2023]
Abstract
BACKGROUND Epigenetic mechanisms may be involved in obesity onset and its consequences. The aim of the present study was to evaluate whether DNA methylation status in microRNA (miRNA) coding regions is associated with childhood obesity. MATERIAL AND METHODS DNA isolated from white blood cells of 24 children (identification sample: 12 obese and 12 non-obese) from the Grupo Navarro de Obesidad Infantil study was hybridized in a 450 K methylation microarray. Several CpGs whose DNA methylation levels were statistically different between obese and non-obese were validated by MassArray® in 95 children (validation sample) from the same study. RESULTS Microarray analysis identified 16 differentially methylated CpGs between both groups (6 hypermethylated and 10 hypomethylated). DNA methylation levels in miR-1203, miR-412 and miR-216A coding regions significantly correlated with body mass index standard deviation score (BMI-SDS) and explained up to 40% of the variation of BMI-SDS. The network analysis identified 19 well-defined obesity-relevant biological pathways from the KEGG database. MassArray® validation identified three regions located in or near miR-1203, miR-412 and miR-216A coding regions differentially methylated between obese and non-obese children. CONCLUSIONS The current work identified three CpG sites located in coding regions of three miRNAs (miR-1203, miR-412 and miR-216A) that were differentially methylated between obese and non-obese children, suggesting a role of miRNA epigenetic regulation in childhood obesity.
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Affiliation(s)
- M L Mansego
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,Nutrition Research Center, University of Navarra, Pamplona, Spain.,CIBERobn, Fisiopatología de la Obesidad y la Nutrición, Carlos III Institute of Health, Madrid, Spain
| | - M Garcia-Lacarte
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,Nutrition Research Center, University of Navarra, Pamplona, Spain
| | - F I Milagro
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,Nutrition Research Center, University of Navarra, Pamplona, Spain.,CIBERobn, Fisiopatología de la Obesidad y la Nutrición, Carlos III Institute of Health, Madrid, Spain
| | - A Marti
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,CIBERobn, Fisiopatología de la Obesidad y la Nutrición, Carlos III Institute of Health, Madrid, Spain.,IdiSNA, Navarra's Health Research Institute, Pamplona, Spain
| | - J A Martinez
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,Nutrition Research Center, University of Navarra, Pamplona, Spain.,CIBERobn, Fisiopatología de la Obesidad y la Nutrición, Carlos III Institute of Health, Madrid, Spain.,IdiSNA, Navarra's Health Research Institute, Pamplona, Spain
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De la Calle C, Morata L, Cobos-Trigueros N, Martinez JA, Cardozo C, Mensa J, Soriano A. Staphylococcus aureus bacteremic pneumonia. Eur J Clin Microbiol Infect Dis 2016; 35:497-502. [PMID: 26780692 DOI: 10.1007/s10096-015-2566-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 12/21/2015] [Indexed: 01/21/2023]
Abstract
Staphylococcus aureus bacteremic pneumonia is an uncommon cause of hospitalization, with a high mortality rate. However, published reports are scarce and have included a small number of cases. All patients with S. aureus bacteremic pneumonia were prospectively collected in our institution from 2000 to 2014, and a retrospective revision was performed to identify risk factors associated with methicillin resistance and to update the mortality of this entity. A total of 98 patients were admitted: 57.1 % were due to methicillin-susceptible S. aureus (MSSA) and 42.8 % due to methicillin-resistant S. aureus (MRSA). In 40 patients (40.8 %), the infection was community acquired. Thirteen were ventilator-associated pneumonia episodes. The most frequent comorbidities were chronic lung disease (34.7 %), chronic renal failure (31.6 %), diabetes mellitus (29.6 %), and cardiovascular disease (31.6 %). Septic shock was present in 46 patients (46.9 %). The 30-day mortality was 46.9 %. MRSA infections occurred in older patients, more frequently with cardiovascular diseases, and they had received antibiotic treatment in the previous month more often than MSSA-infected patients. Patients with infection due to MSSA presented more frequently with septic shock, but they received more frequently appropriate empirical antibiotic therapy than patients with MRSA pneumonia (96 % vs. 38.1 %), and no differences in mortality were observed between both groups. In conclusion, S. aureus bacteremic pneumonia is a severe infection that, nowadays, affects people with comorbidities and the mortality is still high.
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Affiliation(s)
- C De la Calle
- Department of Infectious Diseases Hospital Clínic, Barcelona, Spain.
| | - L Morata
- Department of Infectious Diseases Hospital Clínic, Barcelona, Spain
| | | | - J A Martinez
- Department of Infectious Diseases Hospital Clínic, Barcelona, Spain
| | - C Cardozo
- Department of Infectious Diseases Hospital Clínic, Barcelona, Spain
| | - J Mensa
- Department of Infectious Diseases Hospital Clínic, Barcelona, Spain
| | - A Soriano
- Department of Infectious Diseases Hospital Clínic, Barcelona, Spain
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Martinez JA, Kobayashi M, Krishnan A, Webber C, Christie K, Guo G, Singh V, Zochodne DW. Intrinsic facilitation of adult peripheral nerve regeneration by the Sonic hedgehog morphogen. Exp Neurol 2015. [DOI: 10.1016/j.expneurol.2015.07.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Singh B, Krishnan A, Micu I, Koshy K, Singh V, Martinez JA, Koshy D, Xu F, Chandrasekhar A, Dalton C, Syed N, Stys PK, Zochodne DW. Peripheral neuron plasticity is enhanced by brief electrical stimulation and overrides attenuated regrowth in experimental diabetes. Neurobiol Dis 2015; 83:134-51. [PMID: 26297317 DOI: 10.1016/j.nbd.2015.08.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 07/20/2015] [Accepted: 08/12/2015] [Indexed: 01/01/2023] Open
Abstract
Peripheral nerve regrowth is less robust than commonly assumed, particularly when it accompanies common clinical scenarios such as diabetes mellitus. Brief extracellular electrical stimulation (ES) facilitates the regeneration of peripheral nerves in part through early activation of the conditioning injury response and BDNF. Here, we explored intrinsic neuronal responses to ES to identify whether ES might impact experimental diabetes, where regeneration is attenuated. ES altered several regeneration related molecules including rises in tubulin, Shh (Sonic hedgehog) and GAP43 mRNAs. ES was associated with rises in neuronal intracellular calcium but its strict linkage to regrowth was not confirmed. In contrast, we identified PI3K-PTEN involvement, an association previously linked to diabetic regenerative impairment. Following ES there were declines in PTEN protein and mRNA both in vitro and in vivo and a PI3K inhibitor blocked its action. In vitro, isolated diabetic neurons were capable of mounting robust responsiveness to ES. In vivo, ES improved electrophysiological and behavioral indices of nerve regrowth in a chronic diabetic model of mice with pre-existing neuropathy. Regrowth of myelinated axons and reinnervation of the epidermis were greater following ES than sham stimulation. Taken together, these findings identify a role for ES in supporting regeneration during the challenges of diabetes mellitus.
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Affiliation(s)
- B Singh
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - A Krishnan
- Division of Neurology, Department of Medicine, Neurosciences and Mental Health Institute, University of Alberta, Edmonton, AB, T6G 2B7, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - I Micu
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - K Koshy
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - V Singh
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - J A Martinez
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - D Koshy
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - F Xu
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - A Chandrasekhar
- Division of Neurology, Department of Medicine, Neurosciences and Mental Health Institute, University of Alberta, Edmonton, AB, T6G 2B7, Canada
| | - C Dalton
- Electrical and Computer Engineering, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - N Syed
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - P K Stys
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - D W Zochodne
- Division of Neurology, Department of Medicine, Neurosciences and Mental Health Institute, University of Alberta, Edmonton, AB, T6G 2B7, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB, T2N 4N1, Canada.
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Livingstone KM, Celis-Morales C, Lara J, Ashor AW, Lovegrove JA, Martinez JA, Saris WH, Gibney M, Manios Y, Traczyk I, Drevon CA, Daniel H, Gibney ER, Brennan L, Bouwman J, Grimaldi KA, Mathers JC. Associations between FTO genotype and total energy and macronutrient intake in adults: a systematic review and meta-analysis. Obes Rev 2015; 16:666-78. [PMID: 26016642 DOI: 10.1111/obr.12290] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 04/09/2015] [Accepted: 04/09/2015] [Indexed: 12/30/2022]
Abstract
Risk variants of fat mass and obesity-associated (FTO) gene have been associated with increased obesity. However, the evidence for associations between FTO genotype and macronutrient intake has not been reviewed systematically. Our aim was to evaluate the potential associations between FTO genotype and intakes of total energy, fat, carbohydrate and protein. We undertook a systematic literature search in OVID MEDLINE, Scopus, EMBASE and Cochrane of associations between macronutrient intake and FTO genotype in adults. Beta coefficients and confidence intervals (CIs) were used for per allele comparisons. Random-effect models assessed the pooled effect sizes. We identified 56 eligible studies reporting on 213,173 adults. For each copy of the FTO risk allele, individuals reported 6.46 kcal day(-1) (95% CI: 10.76, 2.16) lower total energy intake (P = 0.003). Total fat (P = 0.028) and protein (P = 0.006), but not carbohydrate intakes, were higher in those carrying the FTO risk allele. After adjustment for body weight, total energy intakes remained significantly lower in individuals with the FTO risk genotype (P = 0.028). The FTO risk allele is associated with a lower reported total energy intake and with altered patterns of macronutrient intake. Although significant, these differences are small and further research is needed to determine whether the associations are independent of dietary misreporting.
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Affiliation(s)
- K M Livingstone
- Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK
| | - C Celis-Morales
- Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK
| | - J Lara
- Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK
| | - A W Ashor
- Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK
| | - J A Lovegrove
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, UK
| | - J A Martinez
- Department of Nutrition, Food Science and Physiology, University of Navarra, CIBER Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Pamplona, Spain
| | - W H Saris
- Department of Human Biology, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - M Gibney
- UCD Institute of Food and Health, University College Dublin, Dublin, Republic of Ireland
| | - Y Manios
- Department of Nutrition and Dietetics, Harokopio University of Athens, Athens, Greece
| | - I Traczyk
- ZIEL Research Center of Nutrition and Food Sciences, Technische Universität München, München, Germany
| | - C A Drevon
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - H Daniel
- National Food and Nutrition Institute (IZZ), Warsaw, Poland
| | - E R Gibney
- UCD Institute of Food and Health, University College Dublin, Dublin, Republic of Ireland
| | - L Brennan
- UCD Institute of Food and Health, University College Dublin, Dublin, Republic of Ireland
| | - J Bouwman
- Microbiology and Systems Biology Group, TNO, Zeist, The Netherlands
| | | | - J C Mathers
- Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK
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Etxeberria U, Arias N, Boqué N, Macarulla MT, Portillo MP, Milagro FI, Martinez JA. Shifts in microbiota species and fermentation products in a dietary model enriched in fat and sucrose. Benef Microbes 2015; 6:97-111. [PMID: 25213025 DOI: 10.3920/bm2013.0097] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The gastrointestinal tract harbours a 'superorganism' called the gut microbiota, which is known to play a crucial role in the onset and development of diverse diseases. This internal ecosystem, far from being a static environment, can be manipulated by diet and dietary components. Feeding animals with high-fat sucrose (HFS) diets entails diet-induced obesity, a model which is usually used in research to mimic the obese phenotype of Western societies. The aim of the present study was to identify gut microbiota dysbiosis and associated metabolic changes produced in male Wistar rats fed a HFS diet for 6 weeks and compare it with the basal microbial composition. For this purpose, DNA extracted from faeces at baseline and after treatment was analysed by amplification of the V4-V6 region of the 16S ribosomal DNA (rDNA) gene using 454 pyrosequencing. Short-chain fatty acids, i.e. acetate, propionate and butyrate, were also evaluated by gas chromatography-mass spectrometry. At the end of the treatment, gut microbiota composition significantly differed at phylum level (Firmicutes, Bacteroidetes and Proteobacteria) and class level (Erisypelotrichi, Deltaproteobacteria, Bacteroidia and Bacilli). Interestingly, the class Clostridia showed a significant decrease after HFS diet treatment, which correlated with visceral adipose tissue, and is likely mediated by dietary carbohydrates. Of particular interest, Clostridium cluster XIVa species were significantly reduced and changes were identified in the relative abundance of other specific bacterial species (Mitsuokella jalaludinii, Eubacterium ventriosum, Clostridium sp. FCB90-3, Prevotella nanceiensis, Clostridium fusiformis, Clostridium sp. BNL1100 and Eubacterium cylindroides) that, in some cases, showed opposite trends to their relative families. These results highlight the relevance of characterising gut microbial population differences at species level and contribute to understand the plausible link between diet and specific gut bacterial species that are able to influence the inflammatory status, intestinal barrier function and obesity development.
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Affiliation(s)
- U Etxeberria
- Department of Nutrition, Food Science and Physiology, University of Navarra, C/Irunlarrea s/n, 31008 Pamplona, Spain Centre for Nutrition Research, University of Navarra, Irunlarrea St. E-31008 Pamplona, Spain
| | - N Arias
- Nutrition and Obesity group, Department of Nutrition and Food Sciences, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
| | - N Boqué
- Nutrition and Health Research Group. Technological Center of Nutrition and Health (CTNS), TECNIO, CEIC S. Avinguda Universitat, 1, 43204 Reus, Spain
| | - M T Macarulla
- Nutrition and Obesity group, Department of Nutrition and Food Sciences, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain CIBERobn Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - M P Portillo
- Nutrition and Obesity group, Department of Nutrition and Food Sciences, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain CIBERobn Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - F I Milagro
- Department of Nutrition, Food Science and Physiology, University of Navarra, C/Irunlarrea s/n, 31008 Pamplona, Spain Centre for Nutrition Research, University of Navarra, Irunlarrea St. E-31008 Pamplona, Spain CIBERobn Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - J A Martinez
- Department of Nutrition, Food Science and Physiology, University of Navarra, C/Irunlarrea s/n, 31008 Pamplona, Spain Centre for Nutrition Research, University of Navarra, Irunlarrea St. E-31008 Pamplona, Spain CIBERobn Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, 28029 Madrid, Spain
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Christie K, Koshy D, Cheng C, Guo G, Martinez JA, Duraikannu A, Zochodne DW. Intraganglionic interactions between satellite cells and adult sensory neurons. Mol Cell Neurosci 2015; 67:1-12. [DOI: 10.1016/j.mcn.2015.05.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 04/12/2015] [Accepted: 05/11/2015] [Indexed: 11/25/2022] Open
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Cheung A, Podgorny P, Martinez JA, Chan C, Toth C. Epidermal axonal swellings in painful and painless diabetic peripheral neuropathy. Muscle Nerve 2015; 51:505-13. [DOI: 10.1002/mus.24351] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/28/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Audrey Cheung
- Department of Clinical Neurosciences; HMRB 155; Foothills Hospital; University of Calgary, Hotchkiss Brain Institute; 3330 Hospital Drive NW Calgary Alberta T2N 4N1 Canada
| | - Peter Podgorny
- Department of Clinical Neurosciences; HMRB 155; Foothills Hospital; University of Calgary, Hotchkiss Brain Institute; 3330 Hospital Drive NW Calgary Alberta T2N 4N1 Canada
| | - Jose A. Martinez
- Department of Clinical Neurosciences; HMRB 155; Foothills Hospital; University of Calgary, Hotchkiss Brain Institute; 3330 Hospital Drive NW Calgary Alberta T2N 4N1 Canada
| | - Cynthia Chan
- Department of Clinical Neurosciences; HMRB 155; Foothills Hospital; University of Calgary, Hotchkiss Brain Institute; 3330 Hospital Drive NW Calgary Alberta T2N 4N1 Canada
| | - Cory Toth
- Department of Clinical Neurosciences; HMRB 155; Foothills Hospital; University of Calgary, Hotchkiss Brain Institute; 3330 Hospital Drive NW Calgary Alberta T2N 4N1 Canada
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Xu EZ, Li Z, Martinez JA, Sinitsyn N, Htoon H, Li N, Swartzentruber B, Hollingsworth JA, Wang J, Zhang SX. Diameter dependent thermoelectric properties of individual SnTe nanowires. Nanoscale 2015; 7:2869-2876. [PMID: 25623253 DOI: 10.1039/c4nr05870d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The lead-free compound tin telluride (SnTe) has recently been suggested to be a promising thermoelectric material. In this work, we report on the first thermoelectric study of individual single-crystalline SnTe nanowires with different diameters ranging from ∼218 to ∼913 nm. Measurements of thermopower S, electrical conductivity σ and thermal conductivity κ were carried out on the same nanowires over a temperature range of 25-300 K. While the electrical conductivity does not show a strong diameter dependence, the thermopower increases by a factor of two when the nanowire diameter is decreased from ∼913 nm to ∼218 nm. The thermal conductivity of the measured NWs is lower than that of the bulk SnTe, which may arise from the enhanced phonon - surface boundary scattering and phonon-defect scattering. Temperature dependent figure of merit ZT was determined for individual nanowires and the achieved maximum value at room temperature is about three times higher than that in bulk samples of comparable carrier density.
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Affiliation(s)
- E Z Xu
- Department of Physics, Indiana University, Bloomington, Indiana 47405, USA.
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Cordero P, Gonzalez-Muniesa P, Milagro FI, Campion J, Martinez JA. Perinatal maternal feeding with an energy dense diet and/or micronutrient mixture drives offspring fat distribution depending on the sex and growth stage. J Anim Physiol Anim Nutr (Berl) 2014; 99:834-40. [PMID: 25521806 DOI: 10.1111/jpn.12283] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2014] [Accepted: 11/21/2014] [Indexed: 12/16/2022]
Abstract
Maternal nutrition during pregnancy and lactation influences offspring development and health. Novel studies have described the effects on next generation obesity-related features depending on maternal macro- and micro-nutrient perinatal feeding. We hypothesized that the maternal obesogenic diet during pregnancy and lactation programs an obese phenotype, while maternal micronutrient supplementation at these stages could partially prevent these features. Thus, the aim was to assess the influence of a perinatal maternal feeding with an obesogenic diet enriched in fat and sucrose and a micronutrient supplementation during pregnancy and lactation on offspring growth and obese phenotypical features during life course. Female Wistar rats were assigned to four dietary groups during pregnancy and lactation: control, control supplemented with micronutrients (choline, betaine, folic acid and vitamin B12 ), high-fat sucrose (HFS) and HFS supplemented. At weaning, the offspring were transferred to a chow diet, and weight and fat mass were measured at weeks 3, 12 and 20. At birth, both male and female offspring from mothers fed the obesogenic diet showed lower body weight (-5 and -6%, respectively), while only female offspring weight decreased by maternal micronutrient supplementation (-5%). During lactation, maternal HFS diet was associated with increased body weight, while micronutrient supplementation protected against body weight gain. Whole body fat mass content increased at weeks 3, 12 and 20 (from 16 to 65%) due to maternal HFS diet. Maternal micronutrient supplementation decreased offspring fat mass content at week 3 (-8%). Male offspring showed higher adiposity than females at weeks 12 and 20. In conclusion, maternal HFS feeding during pregnancy and lactation was associated with a low offspring weight at birth and obese phenotypical features during adult life in a sex- and time-dependent manner. Furthermore, maternal methyl donor supplementation protected against body weight gain in male offspring during lactation and in female offspring also during juvenile period.
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Affiliation(s)
- P Cordero
- Centre for Nutrition Research/Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain
| | - P Gonzalez-Muniesa
- Centre for Nutrition Research/Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,CIBERobn, Physiopathology of Obesity and Nutrition, Institute of Health Carlos III, Madrid, Spain
| | - F I Milagro
- Centre for Nutrition Research/Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,CIBERobn, Physiopathology of Obesity and Nutrition, Institute of Health Carlos III, Madrid, Spain
| | - J Campion
- Centre for Nutrition Research/Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,CIBERobn, Physiopathology of Obesity and Nutrition, Institute of Health Carlos III, Madrid, Spain
| | - J A Martinez
- Centre for Nutrition Research/Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain.,CIBERobn, Physiopathology of Obesity and Nutrition, Institute of Health Carlos III, Madrid, Spain
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Zulet MA, Navas-Carretero S, Lara y Sánchez D, Abete I, Flanagan J, Issaly N, Fança-Berthon P, Bily A, Roller M, Martinez JA. A Fraxinus excelsior L. seeds/fruits extract benefits glucose homeostasis and adiposity related markers in elderly overweight/obese subjects: a longitudinal, randomized, crossover, double-blind, placebo-controlled nutritional intervention study. Phytomedicine 2014; 21:1162-1169. [PMID: 24877717 DOI: 10.1016/j.phymed.2014.04.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 03/25/2014] [Accepted: 04/20/2014] [Indexed: 06/03/2023]
Abstract
PURPOSE The aim of this study was to investigate the potential benefits of an extract obtained from seeds/fruits of an Oleaceae (Fraxinus excelsior L.) on glucose homeostasis and associated metabolic markers in non-diabetic overweight/obese subjects. MATERIALS AND METHODS This study was performed in 22 participants (50-80 years-old; BMI 31.0 kg/m(2)). The design was a longitudinal, randomized, crossover, double-blind, placebo-controlled 7-week nutritional intervention. The participants received daily 3 capsules each containing either 333 mg of an extract from Fraxinus excelsior L. seeds (Glucevia(®)) or placebo capsules (control) in a random order for 3 weeks with 1 week of washout between treatments. Moreover, they followed a balanced covert energy-restricted diet (-15% energy). All variables were measured at the beginning and at the end of each period. RESULTS Compared to baseline, the administration of 1 g of Glucevia(®) for 3 weeks resulted in significantly lower incremental glucose area under the curve (-28.2%; p<0.01), and significantly lower 2 h blood glucose values (-14%; p<0.01) following an oral glucose tolerance test. No significant changes were found in the control group (-7.9% AUC, -1.6% 2h blood glucose). Furthermore, significant differences were found between responses in the control and Glucevia(®) groups with respect to serum fructosamine and plasma glucagon levels (p<0.01 and p<0.05, respectively). Interestingly, administration of Glucevia(®) significantly increased the adiponectin:leptin ratio (p<0.05) and decreased fat mass (p<0.01) compared to control (p<0.05). CONCLUSION The administration of an extract from Fraxinus excelsior L. seeds/fruits in combination with a moderate hypocaloric diet may be beneficial in metabolic disturbances linked to impaired glucose tolerance, obesity, insulin resistance and inflammatory status, specifically in older adults.
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Affiliation(s)
- M A Zulet
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain; Physiopathology of Obesity and Nutrition, CIBERobn. Carlos III Health Research Institute, Madrid, Spain
| | - S Navas-Carretero
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain; Physiopathology of Obesity and Nutrition, CIBERobn. Carlos III Health Research Institute, Madrid, Spain
| | - D Lara y Sánchez
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain
| | - I Abete
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain
| | - J Flanagan
- Naturex SA, Site d'Agroparc BP 1218, 84911 Avignon Cedex 9, France
| | - N Issaly
- Naturex Spain SL, Autovia A3, Salida 343, Camino de Torrent s/n, 46930 Quart de Poblet, Valencia, Spain
| | - P Fança-Berthon
- Naturex SA, Site d'Agroparc BP 1218, 84911 Avignon Cedex 9, France
| | - A Bily
- Naturex SA, Site d'Agroparc BP 1218, 84911 Avignon Cedex 9, France
| | - M Roller
- Naturex SA, Site d'Agroparc BP 1218, 84911 Avignon Cedex 9, France
| | - J A Martinez
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain; Physiopathology of Obesity and Nutrition, CIBERobn. Carlos III Health Research Institute, Madrid, Spain.
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de la Iglesia R, Lopez-Legarrea P, Crujeiras AB, Pardo M, Casanueva FF, Zulet MA, Martinez JA. Plasma irisin depletion under energy restriction is associated with improvements in lipid profile in metabolic syndrome patients. Clin Endocrinol (Oxf) 2014; 81:306-11. [PMID: 24325584 DOI: 10.1111/cen.12383] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 09/03/2013] [Accepted: 12/06/2013] [Indexed: 01/17/2023]
Abstract
OBJECTIVE A recently discovered myokine, irisin, may have an important role in energy metabolism. This study aimed to evaluate the relationship between this hormone and the lipid profile of patients with metabolic syndrome (MetS) following a hypocaloric diet. DESIGN Ninety-three Caucasian adults (52 men/41 women) diagnosed with MetS followed an 8-week-long energy-restricted programme (-30% of the energy requirements). Anthropometric measurements, biochemical markers and plasma irisin levels were analysed before and after the nutritional intervention. RESULTS Global plasma irisin levels were significantly reduced at the end of the study (-72.0 ± 100.9 ng/ml, P < 0.001) accompanying the weight loss (-6.9%). The depletion of irisin significantly correlated with changes in some atherogenic-related variables: total cholesterol (B = 0.106, P = 0.018), total cholesterol/high-density lipoprotein cholesterol ratio (B = 0.002, P = 0.036), low-density lipoprotein cholesterol (B = 0.085, P = 0.037) and apolipoprotein B (B = 0.052, P = 0.002), independently of changes in body weight. CONCLUSIONS An association between the reduction in plasma irisin levels and the depletion of important lipid metabolism biomarkers was observed in patients with MetS undergoing an energy-restricted programme.
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Affiliation(s)
- Rocio de la Iglesia
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain
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Yang C, DeVisser A, Martinez JA, Poliakov I, Rosales-Hernandez A, Ayer A, Garven A, Zaver S, Rincon N, Xu K, Tuor UI, Schmidt AM, Toth C. Retraction notice to “Differential impact of diabetes and hypertension in the brain: Adverse effects in white matter” [Neurobiol. Dis., 42 (2011) 446–458, http://dx.doi.org/10.1016/j.nbd.2011.02.007]. Neurobiol Dis 2014; 68:228. [DOI: 10.1016/j.nbd.2014.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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DeVisser A, Yang C, Herring A, Martinez JA, Rosales-Hernandez A, Poliakov I, Ayer A, Garven A, Zaver S, Rincon N, Xu K, Tuor UI, Schmidt AM, Toth C. Retraction notice to “Differential impact of diabetes and hypertension in the brain: Adverse effects in grey matter” [Neurobiol. Dis., 44 (2011) 161–173, http://dx.doi.org/10.1016/j.nbd.2011.06.005]. Neurobiol Dis 2014; 68:229. [DOI: 10.1016/j.nbd.2014.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Cheng YT, Liang T, Martinez JA, Phillpot SR, Sinnott SB. A charge optimized many-body potential for titanium nitride (TiN). J Phys Condens Matter 2014; 26:265004. [PMID: 24903100 DOI: 10.1088/0953-8984/26/26/265004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This work presents a new empirical, variable charge potential for TiN systems in the charge-optimized many-body potential framework. The potential parameters were determined by fitting them to experimental data for the enthalpy of formation, lattice parameters, and elastic constants of rocksalt structured TiN. The potential does a good job of describing the fundamental physical properties (defect formation and surface energies) of TiN relative to the predictions of first-principles calculations. This potential is used in classical molecular dynamics simulations to examine the interface of fcc-Ti(0 0 1)/TiN(0 0 1) and to characterize the adsorption of oxygen atoms and molecules on the TiN(0 0 1) surface. The results indicate that the potential is well suited to model TiN thin films and to explore the chemistry associated with their oxidation.
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Affiliation(s)
- Y-T Cheng
- Department of Materials Science and Engineering, University of Florida, Gainesville, FL 32611, USA
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Christie KJ, Krishnan A, Martinez JA, Purdy K, Singh B, Eaton S, Zochodne D. Enhancing adult nerve regeneration through the knockdown of retinoblastoma protein. Nat Commun 2014; 5:3670. [PMID: 24752312 PMCID: PMC5028199 DOI: 10.1038/ncomms4670] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Accepted: 03/17/2014] [Indexed: 12/22/2022] Open
Abstract
Tumour suppressor pathways may offer novel targets capable of altering the plasticity of post-mitotic adult neurons. Here we describe a role for the retinoblastoma (Rb) protein, widely expressed in adult sensory neurons and their axons, during regeneration. In adult sensory neurons, Rb short interfering RNA (siRNA) knockdown or Rb1 deletion in vitro enhances neurite outgrowth and branching. Plasticity is achieved in part through upregulation of neuronal PPARυ; its antagonism inhibits Rb siRNA plasticity, whereas a PPARυ agonist increases growth. In an in vivo regenerative paradigm following complete peripheral nerve trunk transection, direct delivery of Rb siRNA prompts increased outgrowth of axons from proximal stumps and entrains Schwann cells to accompany them for greater distances. Similarly, Rb siRNA delivery following a nerve crush improves behavioural indices of motor and sensory recovery in mice. The overall findings indicate that inhibition of tumour suppressor molecules has a role to play in promoting adult neuron regeneration.
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Affiliation(s)
- Kimberly J Christie
- 1] Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta, Canada T2N 4N1 [2]
| | - Anand Krishnan
- 1] Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta, Canada T2N 4N1 [2]
| | - Jose A Martinez
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta, Canada T2N 4N1
| | - Kaylynn Purdy
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta, Canada T2N 4N1
| | - Bhagat Singh
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta, Canada T2N 4N1
| | - Shane Eaton
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta, Canada T2N 4N1
| | - Douglas Zochodne
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta, Canada T2N 4N1
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Martinez JA, Kasamatsu M, Rosales-Hernandez A, Hanson LR, Frey WH, Toth CC. Retraction: Comparison of central versus peripheral delivery of pregabalin in neuropathic pain states. Mol Pain 2014; 10:20. [PMID: 24693924 PMCID: PMC3972616 DOI: 10.1186/1744-8069-10-20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 03/14/2014] [Indexed: 11/24/2022] Open
Affiliation(s)
- Jose A Martinez
- Department of Clinical Neurosciences and the University of Calgary, Calgary, AB, Canada
| | - Manami Kasamatsu
- Department of Clinical Neurosciences and the University of Calgary, Calgary, AB, Canada
| | | | - Leah R Hanson
- Alzheimer's Research Center, Regions Hospital, and HealthPartners Research Foundation, St. Paul, MN, USA
| | - William H Frey
- Alzheimer's Research Center, Regions Hospital, and HealthPartners Research Foundation, St. Paul, MN, USA
- Department of Pharmaceutics, University of Minnesota, Minneapolis, MN, USA
| | - Cory C Toth
- Department of Clinical Neurosciences and the University of Calgary, Calgary, AB, Canada
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Ibero-Baraibar I, Abete I, Navas-Carretero S, Massis-Zaid A, Martinez JA, Zulet MA. Oxidised LDL levels decreases after the consumption of ready-to-eat meals supplemented with cocoa extract within a hypocaloric diet. Nutr Metab Cardiovasc Dis 2014; 24:416-422. [PMID: 24462367 DOI: 10.1016/j.numecd.2013.09.017] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 09/12/2013] [Accepted: 09/25/2013] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND AIMS Cocoa flavanols are recognised by their favourable antioxidant and vascular effects. This study investigates the influence on health of the daily consumption of ready-to-eat meals supplemented with cocoa extract within a hypocaloric diet, on middle-aged overweight/obese subjects. METHODS AND RESULTS Fifty healthy male and female middle-aged volunteers [57.26 ± 5.24 years and body mass index (BMI) 30.59 ± 2.33 kg/m(2)] were recruited to participate in a 4 week randomised, parallel and double-blind study. After following 3 days on a low-polyphenol diet, 25 volunteers received meals supplemented with 1.4 g of cocoa extract (645.3 mg of polyphenols) and the other 25 participants received control meals, within a 15% energy restriction diet. On the 4th week of intervention individuals in both dietary groups improved (p < 0.05) anthropometric, body composition, blood pressure and blood biochemical measurements. Oxidised LDL cholesterol (oxLDL), showed a higher reduction (p = 0.030) in the cocoa group. Moreover, myeloperoxidase (MPO) levels decreased only in the cocoa supplemented group (p = 0.007). Intercellular Adhesion Molecule-1 (sICAM-1) decreased significantly in both groups, while Vascular Cell Adhesion Molecule-1 (sVCAM-1) did not present differences after the 4 weeks of intervention. Interestingly, cocoa intake showed a different effect by gender, presenting more beneficial effects in men. CONCLUSIONS The consumption of cocoa extract as part of ready-to-eat meals and within a hypocaloric diet improved oxidative status (oxLDL) in middle-aged subjects, being most remarkable in males. REGISTRATION NUMBER Registered at www.clinicaltrials.gov (NCT01596309).
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Affiliation(s)
- I Ibero-Baraibar
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain
| | - I Abete
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain
| | - S Navas-Carretero
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain; Physiopathology of Obesity and Nutrition, CIBERobn. Carlos III Health Research Institute, Madrid, Spain
| | - A Massis-Zaid
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain
| | - J A Martinez
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain; Physiopathology of Obesity and Nutrition, CIBERobn. Carlos III Health Research Institute, Madrid, Spain.
| | - M A Zulet
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Spain; Physiopathology of Obesity and Nutrition, CIBERobn. Carlos III Health Research Institute, Madrid, Spain
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Aller EEJG, Larsen TM, Claus H, Lindroos AK, Kafatos A, Pfeiffer A, Martinez JA, Handjieva-Darlenska T, Kunesova M, Stender S, Saris WHM, Astrup A, van Baak MA. Weight loss maintenance in overweight subjects on ad libitum diets with high or low protein content and glycemic index: the DIOGENES trial 12-month results. Int J Obes (Lond) 2014; 38:1511-7. [PMID: 24675714 DOI: 10.1038/ijo.2014.52] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 02/26/2014] [Accepted: 03/17/2014] [Indexed: 01/27/2023]
Abstract
BACKGROUND A high dietary protein (P) content and low glycemic index (LGI) have been suggested to be beneficial for weight management, but long-term studies are scarce. OBJECTIVE The DIOGENES randomized clinical trial investigated the effect of P and GI on weight loss maintenance in overweight or obese adults in eight centers across Europe. This study reports the 1-year results in two of the centers that extended the intervention to 1 year. METHOD After an 8-week low-calorie diet (LCD), 256 adults (body mass index >27 kg m(-)(2)) were randomized to five ad libitum diets for 12 months: high P/LGI (HP/LGI), HP/high GI (HP/HGI), low P/LGI (LP/LGI), LP/HGI and a control diet. During the first 6 months, foods were provided for free through a shop system and during the whole 12-month period, subjects received guidance by a dietician. Primary outcome variable was the change in body weight over the 12-month intervention period. RESULTS During the LCD period, subjects lost 11.2 (10.8, 12.0) kg (mean (95% confidence interval (CI))). Average weight regain over the 12-month intervention period was 3.9 (95% CI 3.0-4.8) kg. Subjects on the HP diets regained less weight than subjects on the LP diets. The difference in weight regain after 1 year was 2.0 (0.4, 3.6) kg (P=0.017) (completers analysis, N=139) or 2.8 (1.4, 4.1) kg (P<0.001) (intention-to-treat analysis, N=256). No consistent effect of GI on weight regain was found. There were no clinically relevant differences in changes in cardiometabolic risk factors among diet groups. CONCLUSION A higher protein content of an ad libitum diet improves weight loss maintenance in overweight and obese adults over 12 months.
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Affiliation(s)
- E E J G Aller
- Department of Human Biology, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - T M Larsen
- Department of Nutrition, Exercise and Sports (NEXS), Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - H Claus
- Institute of Preventive Medicine, Centre for Health and Society, Copenhagen, Denmark
| | - A K Lindroos
- MRC Human Nutrition Research, Elsie Widdowson Laboratory, Cambridge, UK
| | - A Kafatos
- Department of Social Medicine, Preventive Medicine & Nutrition Clinic, University of Crete, Heraklion, Greece
| | - A Pfeiffer
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuhetal, Germany
| | - J A Martinez
- 1] Department of Physiology and Nutrition, University of Navarra, Pamplona, Spain [2] CIBERObn, Instituto Carlos III, Madrid, Spain
| | | | - M Kunesova
- Obesity Management Centre, Institute of Endocrinology, Prague, Czech Republic
| | - S Stender
- Department of Clinical Biochemistry, Gentofte University Hospital, Hellerup, Denmark
| | - W H M Saris
- Department of Human Biology, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - A Astrup
- Department of Nutrition, Exercise and Sports (NEXS), Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - M A van Baak
- Department of Human Biology, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Centre, Maastricht, The Netherlands
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Singh B, Singh V, Krishnan A, Koshy K, Martinez JA, Cheng C, Almquist C, Zochodne DW. Regeneration of diabetic axons is enhanced by selective knockdown of the PTEN gene. ACTA ACUST UNITED AC 2014; 137:1051-67. [PMID: 24578546 DOI: 10.1093/brain/awu031] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Diabetes mellitus renders both widespread and localized irreversible damage to peripheral axons while imposing critical limitations on their ability to regenerate. A major failure of regenerative capacity thereby imposes a 'double hit' in diabetic patients who frequently develop focal neuropathies such as carpal tunnel syndrome in addition to generalized diffuse polyneuropathy. The mechanisms of diabetic neuron regenerative failure have been speculative and few approaches have offered therapeutic opportunities. In this work we identify an unexpected but major role for PTEN upregulation in diabetic peripheral neurons in attenuating axon regrowth. In chronic diabetic neuropathy models in mice, we identified significant PTEN upregulation in peripheral sensory neurons of messenger RNA and protein compared to littermate controls. In vitro, sensory neurons from these mice responded to PTEN knockdown with substantial rises in neurite outgrowth and branching. To test regenerative plasticity in a chronic diabetic model with established neuropathy, we superimposed an additional focal sciatic nerve crush injury and assessed morphological, electrophysiological and behavioural recovery. Knockdown of PTEN in dorsal root ganglia ipsilateral to the side of injury was achieved using a unique form of non-viral short interfering RNA delivery to the ipsilateral nerve injury site and paw. In comparison with scrambled sequence control short interfering RNA, PTEN short interfering RNA improved several facets of regeneration: recovery of compound muscle action potentials, reflecting numbers of reconnected motor axons to endplates, conduction velocities of both motor and sensory axons, reflecting their maturation during regrowth, numbers and calibre of regenerating myelinated axons distal to the injury site, reinnervation of the skin by unmyelinated epidermal axons and recovery of mechanical sensation. Collectively, these findings identify a novel therapeutic approach, potentially applicable to other neurological conditions requiring specific forms of molecular knockdown, and also identify a unique target, PTEN, to treat diabetic neuroregenerative failure.
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Affiliation(s)
- Bhagat Singh
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
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García-Unciti M, Martinez JA, Izquierdo M, Gorostiaga EM, Grijalba A, Ibañez J. Effect of resistance training and hypocaloric diets with different protein content on body composition and lipid profile in hypercholesterolemic obese women. NUTR HOSP 2013; 27:1511-20. [PMID: 23478699 DOI: 10.3305/nh.2012.27.5.5921] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Accepted: 07/26/2012] [Indexed: 12/01/2022] Open
Abstract
UNLABELLED Lifestyle changes such as following a hypocaloric diet and regular physical exercise are recognized as effective non-pharmacological interventions to reduce body fat mass and prevent cardiovascular disease risk factors. PURPOSE To evaluate the interactions of a higher protein (HP) vs. a lower protein (LP) diet with or without a concomitant progressive resistance training program (RT) on body composition and lipoprotein profile in hypercholesterolemic obese women. METHODS Retrospective study derived from a 16-week randomized controlled-intervention clinical trial. Twenty five sedentary, obese (BMI: 30-40 kg/m²) women, aged 40-60 with hypercholesterolemia were assigned to a 4-arm trial using a 2 x 2 factorial design (Diet x Exercise). Prescribed diets had the same calorie restriction (-500 kcal/day), and were categorized according to protein content as: lower protein (< 22% daily energy intake, LP) vs. higher protein (> 22% daily energy intake, HP). Exercise comparisons involved habitual activity (control) vs. a 16-week supervised whole-body resistance training program (RT), two sessions/wk. RESULTS A significant decrease in weight and waist circumference was observed in all groups. A significant decrease in LDL-C and Total-Cholesterol levels was observed only when a LP diet was combined with a RT program, the RT being the most determining factor. Interestingly, an interaction between diet and exercise was found concerning LDL-C values. CONCLUSION In this study, resistance training plays a key role in improving LDL-C and Total-Cholesterol; however, a lower protein intake (< 22% of daily energy intake as proteins) was found to achieve a significantly greater reduction in LDL-C.
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Affiliation(s)
- M García-Unciti
- Department of Nutrition and Food Sciences, University of Navarra, Pamplona, Spain
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Gasch O, Camoez M, Dominguez MA, Padilla B, Pintado V, Almirante B, Molina J, Lopez-Medrano F, Ruiz E, Martinez JA, Bereciartua E, Rodriguez-Lopez F, Fernandez-Mazarrasa C, Goenaga MA, Benito N, Rodriguez-Baño J, Espejo E, Pujol M. Predictive factors for mortality in patients with methicillin-resistant Staphylococcus aureus bloodstream infection: impact on outcome of host, microorganism and therapy. Clin Microbiol Infect 2013; 19:1049-57. [PMID: 23331461 DOI: 10.1111/1469-0691.12108] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 11/03/2012] [Accepted: 11/18/2012] [Indexed: 02/05/2023]
Abstract
Mortality related to methicillin-resistant Staphylococcus aureus (MRSA) bloodstream infection (BSI) remains high, despite changes in the epidemiology. To analyze the current predictive factors for mortality we conducted a prospective study in a large cohort of patients with MRSA-BSI from 21 Spanish hospitals. Epidemiology, clinical data, therapy and outcome were recorded. All MRSA strains were analysed, including susceptibility to antibiotics and molecular characterization. Vancomycin MICs (V-MIC) were tested by the E-test and microdilution methods. Time until death was the dependent variable in a Cox regression analysis. Overall, 579 episodes were included. Acquisition was nosocomial in 59% and vascular catheter was the most frequent source (38%). A dominant PFGE genotype was found in 368 (67%) isolates, which belonged to Clonal Complex (CC)5 and carried SCCmecIV and agr2. Microdilution V-MIC50 and V-MIC90 were 0.7 and 1.0 mg/L, respectively. Initial therapy was appropriate in 66% of episodes. Overall mortality was observed in 179 (32%) episodes. The Cox-regression analysis identified age >70 years (HR 1.88), previous fatal disease (HR 2.16), Pitt score >1 (HR 3.45), high-risk source (HR 1.85) and inappropriate initial treatment (HR 1.39) as independent predictive factors for mortality. CC5 and CC22 (HR 0.52 and 0.45) were associated with significantly lower mortality rates than CC8. V-MIC ≥1.5 did not have a significant impact on mortality, regardless of the method used to assess it.
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Affiliation(s)
- O Gasch
- Department of Infectious Diseases and Microbiology, H. Bellvitge, Universitat de Barcelona, Barcelona, Spain
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Cheng C, Singh V, Krishnan A, Kan M, Martinez JA, Zochodne DW. Loss of innervation and axon plasticity accompanies impaired diabetic wound healing. PLoS One 2013; 8:e75877. [PMID: 24098736 PMCID: PMC3786937 DOI: 10.1371/journal.pone.0075877] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 08/19/2013] [Indexed: 12/26/2022] Open
Abstract
Loss of cutaneous innervation from sensory neuropathy is included among mechanisms for impaired healing of diabetic skin wounds. The relationships between cutaneous axons and their local microenvironment during wound healing are challenged in diabetes. Here, we show that secondary wound closure of the hairy dorsal skin of mice is delayed by diabetes and is associated with not only a pre-existing loss of cutaneous axons but substantial retraction of axons around the wound. At 7d following a 3mm punch wound, a critical period of healing and reinnervation, both intact skin nearby the wound and skin directly at the wound margins had over 30-50% fewer axons and a larger deficit of ingrowing axons in diabetics. These findings contrasted with a pre-existing 10-15% deficit in axons. Moreover, new diabetic ingrowing axons had less evidence of plasticity. Unexpectedly, hair follicles adjacent to the wounds had a 70% reduction in their innervation associated with depleted expression of hair follicular stem cell markers. These impairments were associated with the local upregulation of two established axon regenerative ‘roadblocks’: PTEN and RHOA, potential but thus far unexplored mediators of these changes. The overall findings identify striking and unexpected superimposed cutaneous axon loss or retraction beyond that expected of diabetic neuropathy alone, associated with experimental diabetic skin wounding, a finding that prompts new considerations in diabetic wounds.
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Affiliation(s)
- Chu Cheng
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Vandana Singh
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Anand Krishnan
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Michelle Kan
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Jose A. Martinez
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Douglas W. Zochodne
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
- * E-mail:
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Webber CA, Salame J, Luu GLS, Acharjee S, Ruangkittisakul A, Martinez JA, Jalali H, Watts R, Ballanyi K, Guo GF, Zochodne DW, Power C. Nerve growth factor acts through the TrkA receptor to protect sensory neurons from the damaging effects of the HIV-1 viral protein, Vpr. Neuroscience 2013; 252:512-25. [PMID: 23912036 DOI: 10.1016/j.neuroscience.2013.07.046] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 06/30/2013] [Accepted: 07/22/2013] [Indexed: 01/19/2023]
Abstract
Distal sensory polyneuropathy (DSP) with associated neuropathic pain is the most common neurological disorder affecting patients with human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS). Viral protein R (Vpr) is a neurotoxic protein encoded by HIV-1 and secreted by infected macrophages. Vpr reduces neuronal viability, increases cytosolic calcium and membrane excitability of cultured dorsal root ganglion (DRG) sensory neurons, and is associated with mechanical allodynia in vivo. A clinical trial with HIV/AIDS patients demonstrated that nerve growth factor (NGF) reduced the severity of DSP-associated neuropathic pain, a problem linked to damage to small diameter, potentially NGF-responsive fibers. Herein, the actions of NGF were investigated in our Vpr model of DSP and we demonstrated that NGF significantly protected sensory neurons from the effects of Vpr. Footpads of immunodeficient Vpr transgenic (vpr/RAG1(-/-)) mice displayed allodynia (p<0.05), diminished epidermalinnervation (p<0.01) and reduced NGF mRNA expression (p<0.001) compared to immunodeficient (wildtype/RAG1(-/-)) littermate control mice. Compartmented cultures confirmed recombinant Vpr exposure to the DRG neuronal perikarya decreased distal neurite extension (p<0.01), whereas NGF exposure at these distal axons protected the DRG neurons from the Vpr-induced effect on their cell bodies. NGF prevented Vpr-induced attenuation of the phosphorylated glycogen synthase-3 axon extension pathway and tropomyosin-related kinase A (TrkA) receptor expression in DRG neurons (p<0.05) and it directly counteracted the cytosolic calcium burst caused by Vpr exposure to DRG neurons (p<0.01). TrkA receptor agonist indicated that NGFacted through the TrkA receptor to block the Vpr-mediated decrease in axon outgrowth in neonatal and adult rat and fetal human DRG neurons (p<0.05). Similarly, inhibiting the lower affinity NGF receptor, p75, blocked Vpr's effect on DRG neurons. Overall, NGF/TrkA signaling or p75 receptor inhibition protects somatic sensory neurons exposed to Vpr, thus laying the groundwork for potential therapeutic options for HIV/AIDS patients suffering from DSP.
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Affiliation(s)
- C A Webber
- Division of Anatomy, University of Alberta, Edmonton, Alberta T6G 2H7, Canada.
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Rincon N, Xu K, Li J, Martinez JA, Singh GS, Han D, Lalli P, Ayer A, Tse K, Rong L, Schmidt AM, Toth CC. Statement of Retraction. Blockade of receptor for advanced glycation end products in a model of type 1 diabetic leukoencephalopathy. Diabetes. 19 November 2012 [Epub ahead of print]. Diabetes 2013; 62:309. [PMID: 22936180 PMCID: PMC3526058 DOI: 10.2337/db12-0317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Cordero P, Gomez-Uriz AM, Milagro FI, Campion J, Martinez JA. Maternal weight gain induced by an obesogenic diet affects adipose accumulation, liver weight, and insulin homeostasis in the rat offspring depending on the sex. J Endocrinol Invest 2012; 35:981-6. [PMID: 23310925 DOI: 10.1007/bf03346741] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND The aim of this research was to analyze the influence of the maternal dietary intake before pregnancy, as well as the parental impact on the response to a transgenerational high-fat-diet in rats. METHODS Ten female Wistar rats were fed a standard or a high-fat-sucrose (HFS) diet in the 8 weeks prior to pregnancy. Adult offsprings were assigned to a control or obesogenic diet for 8 weeks. Then, rat tissues and plasma samples were collected for analyzing tissue weight, liver triglycerides, and biochemical parameters such as triglycerides, HDL cholesterol, glucose, and insulin levels. RESULTS The offspring of rats fed a HFS diet gained less weight when they were fed the same diet than those fed a HFS diet combined with maternal control diet. Insulin levels were higher in rats fed a HFS diet (p<0.05) in both sexes; however, maternal HFS diet reversed, partially in males and total- ly in females, this hormonal imbalance. In male newborns, diet-induced maternal weight gain before pregnancy significantly influenced visceral (R 2 =0.373) and subcutaneous (R 2 =0.239) adipose deposition as well as liver weight (R 2 =0.130). Paternal genetic make-up was also a relevant factor affecting adiposity in both sexes (R 2 =0.333 in visceral fat; R 2 =0.183 in subcutaneous fat in males, and 0.292 and 0.282, respectively in females) as well as plasma triglycerides (R 2 =0.193 in males and R 2 =0.251 in females). CONCLUSIONS The genetic parental background and pre-natal maternal diet are important factors in the response to a hypercaloric diet and affect body composition and glucose homeostasis traits, including insulin secretion and homeostatic model assessment index.
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Affiliation(s)
- P Cordero
- Department of Nutrition, Food Sciences and Physiology, University of Navarra, Pamplona, Spain
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Kunešová M, Hlavatý P, Tvrzická E, Staňková B, Kalousková P, Viguerie N, Larsen TM, van Baak MA, Jebb SA, Martinez JA, Pfeiffer AFH, Kafatos A, Handjieva-Darlenska T, Hill M, Langin D, Zák A, Astrup A, Saris WHM. Fatty acid composition of adipose tissue triglycerides after weight loss and weight maintenance: the DIOGENES study. Physiol Res 2012; 61:597-607. [PMID: 23098653 DOI: 10.33549/physiolres.932414] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Fatty acid composition of adipose tissue changes with weight loss. Palmitoleic acid as a possible marker of endogenous lipogenesis or its functions as a lipokine are under debate. Objective was to assess the predictive role of adipose triglycerides fatty acids in weight maintenance in participants of the DIOGENES dietary intervention study. After an 8-week low calorie diet (LCD) subjects with > 8 % weight loss were randomized to 5 ad libitum weight maintenance diets for 6 months: low protein (P)/low glycemic index (GI) (LP/LGI), low P/high GI (LP/HGI), high P/low GI (HP/LGI), high P/high GI (HP/HGI), and a control diet. Fatty acid composition in adipose tissue triglycerides was determined by gas chromatography in 195 subjects before the LCD (baseline), after LCD and weight maintenance. Weight change after the maintenance phase was positively correlated with baseline adipose palmitoleic (16:1n-7), myristoleic (14:1n-5) and trans-palmitoleic acid (16:1n-7t). Negative correlation was found with baseline oleic acid (18:1n-9). Lower baseline monounsaturated fatty acids (14:1n-5, 16:1n-7 and trans 16:1n-7) in adipose tissue triglycerides predict better weight maintenance. Lower oleic acid predicts lower weight decrease. These findings suggest a specific role of monounsaturated fatty acids in weight management and as weight change predictors.
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Affiliation(s)
- M Kunešová
- Obesity Management Centre, Institute of Endocrinology, Prague, Czech Republic.
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Franz CK, Singh B, Martinez JA, Zochodne DW, Midha R. Brief transvertebral electrical stimulation of the spinal cord improves the specificity of femoral nerve reinnervation. Neurorehabil Neural Repair 2012; 27:260-8. [PMID: 23077143 DOI: 10.1177/1545968312461717] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Functional outcomes are generally poor following peripheral nerve injury (PNI). The reason is multifactorial but includes the misdirection of regenerating axons to inappropriate end organs. It has been shown that brief electrical stimulation (Estim) of nerves has the potential to improve the accuracy and rate of peripheral axon regeneration. OBJECTIVE The present study explores a novel percutaneous transvertebral approach to Estim, which was tested in the mouse femoral nerve model. METHODS Inspired by the protocol of Gordon and colleagues (ie, 20 Hz, for 1 hour), we applied Estim to the cervicothoracic spinal cord (SC-Estim) to remotely activate lumbar motor neurons following transection and repair of the femoral nerve. Fluorescent dyes were applied to the distal nerve to label reinnervating cells. Sections of nerve were taken to quantify the numbers of reinnervating axons as well as to stain for a known femoral axon guidance molecule-polysialylated neural cell adhesion molecule (PSA-NCAM). RESULTS In comparison to sham treatment, SC-Estim led to significantly greater expression of PSA-NCAM as well as improved the specificity of motor reinnervation. Interestingly, although SC-Estim did not alter the number of early reinnervating (ie, pioneer) axons, there was a reduction in the number of retrogradely labeled neurons at 2 weeks postrepair. However, by 6 weeks postrepair, there was no difference in the number of neurons that had reinnervated the femoral nerve. CONCLUSIONS The present findings support the development of SC-Estim as a novel approach to enhance the specificity of reinnervation and potentially improve functional outcomes following PNI.
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Affiliation(s)
- Colin K Franz
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, AB, Canada.
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Quintero P, Gonzalez-Muniesa P, Martinez JA. Influence of different oxygen supply on metabolic markers and gene response in murine adipocytes. J BIOL REG HOMEOS AG 2012; 26:379-388. [PMID: 23034257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Obese subjects often present a low-grade chronic inflammation in the white adipose tissue, which seems to play an important role in the initiation and development of obesity-related diseases. It has been reported that this inflammatory process may be due to a hypoxic state occuring within this tissue. Oxygen is used in current medicine as a treatment for several conditions. The aim of this study is to analyze the effects of 95 percent O2 on specific metabolic variables and on the expression of some genes on murine adipocytes. 3T3-L1 adipocytes were exposed during 48 h to different treatments: 95 percent O2 hyperoxia (HPx group), CoCl2 (CoCl2 group), hyperoxia with CoCl2 (HPx+CoCl2 group) and 1 percent O2 hypoxia (Hx group). Cell viability, intracellular ROS content, glucose utilization, lactate and glycerol concentrations were measured. Also, mRNA expression of HIF-1alpha, GLUT-1, ANGPTL4, PPAR-gamma, adiponectin, IL-6 and MCP-1 genes was analyzed. Importantly, 95 percent O2 decreased cell viability and increased intracellular ROS production. Also, glycerol and lactate release were significantly increased and decreased, respectively, in HPx treated cells. This treatment also provoked a down-regulation of GLUT-1 and ANGPTL-4, while IL-6 and MCP-1 were up-regulated. Exposure to a hyperoxia of 95 percent O2 provoked an inflammatory response in adipocytes. The two hypoxia-inducing conditions (CoCl2 and 1 percent O2) produced different outcomes in metabolic measurements as well as in the expression of some genes (GLUT-1, ANPGTL4, PPAR-gamma and adiponectin), while it remained similar in others (HIF-1alpha, IL-6 and MCP-1). Indeed, hyperoxia increased significantly the ROS levels and the lipolytic activity, while it reduced lactate production. In addition to the effects on inflammation, the changes in GLUT-1, ANGPTL4 and PPAR-gamma genes lead to suppose that hyperoxia may be beneficial for the hypertrophied adipose tissues of obese subjects and for improving insulin sensitivity.
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Affiliation(s)
- P Quintero
- Department of Nutrition, Food Science, Physiology and Toxicology, University of Navarra, Pamplona, Spain
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