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Hernandez M, Ghislin S, Lalonde R, Strazielle C. Corticosterone effects on postnatal cerebellar development in mice. Neurochem Int 2023; 171:105611. [PMID: 37704081 DOI: 10.1016/j.neuint.2023.105611] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 08/23/2023] [Accepted: 09/06/2023] [Indexed: 09/15/2023]
Abstract
Glucocorticoids administered early in infancy can affect the architectonic organization of brain structures, particularly those with a postnatal development and resulting in long-term deficits of neuromotor function and cognition. The present study was undertaken to study the effects of daily corticosterone (CORT) injections at a pharmacological dose from postnatal days 8-15 on cerebellar and hippocampal development in mouse pups. Gene expression status for trophic factors involved in synaptic development and function as well as measures of layer thickness associated with cytochrome oxidase labelling were analyzed in the hippocampus, hypothalamus, and specific cerebellar lobules involved in motor control. Repeated CORT injections dysregulated the HPA axis with increased Crh and Nr3c1 mRNA levels in the hypothalamus and a resulting higher serum corticosterone level. The CORT treatment altered the morphology of the hippocampus and down-regulated gene transcription for corticotropin-releasing hormone (Crh) and its type-1 receptor (Crhr1), glucocorticoid receptor (Nr3c1), and brain-derived neurotrophic factor Bdnf and its receptor Ntrk2 (neurotrophic receptor tyrosine kinase 2). Similar mRNA expression decreases were found in the cerebellum for Crhr1, Crhr2, Nr3c1, and Grid2 (glutamatergic δ2 receptor). Morphological alterations and metabolic activity variations were observed in specific cerebellar lobules involved in motor control. The paramedian lobule, normally characterized by mitotic activity in the external germinative layer during the second postnatal week, was atrophic but metabolically hyperactive in its granule cell and molecular layers. On the contrary, lobules with an earlier cell proliferation displayed neurogenesis but a hypoactivated granule cell layer, suggesting a developmental delay in synaptogenesis. The results indicate that glucocorticoid, administered daily during the second postnatal week modulated the developmental programming of the hippocampus and cerebellum. These growth and metabolic alterations may lead possibly to morphological and functional changes later in life.
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Affiliation(s)
- M Hernandez
- Laboratory of Stress, Immunity, Pathogens (EA 7300), Medical School, University of Lorraine, 54500 Vandœuvre-les-Nancy, France; CHRU Nancy, Vandœuvre-les-Nancy, France
| | - S Ghislin
- Laboratory of Stress, Immunity, Pathogens (EA 7300), Medical School, University of Lorraine, 54500 Vandœuvre-les-Nancy, France
| | - R Lalonde
- Laboratory of Stress, Immunity, Pathogens (EA 7300), Medical School, University of Lorraine, 54500 Vandœuvre-les-Nancy, France
| | - C Strazielle
- Laboratory of Stress, Immunity, Pathogens (EA 7300), Medical School, University of Lorraine, 54500 Vandœuvre-les-Nancy, France; CHRU Nancy, Vandœuvre-les-Nancy, France.
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Garg AK, Hernandez M, Schlembach PJ, McAleer MF, Brown PD, Gopal RS, Wiederhold L, Swanson TA, Shah SJ, Li J, Ferguson S, Philip N, De Gracia B, Bloom E, Chun SG. Frameless Fractionated Linear Accelerator-Based Stereotactic Radiotherapy for Brain Metastases: Results of a Single-Arm Phase II Multi-Institutional Clinical Trial. Int J Radiat Oncol Biol Phys 2023; 117:e94-e95. [PMID: 37786219 DOI: 10.1016/j.ijrobp.2023.06.857] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Stereotactic radiotherapy (SRT) yields high rates of local control for brain metastases while minimizing neurocognitive side effects. While advanced SRT platforms are widely available in urban centers, rural/suburban patients face geographic and socioeconomic barriers to access SRS. For this reason, we conducted a multi-institutional Phase 2 clinical trial to test the safety and efficacy of 3-5 fraction frameless fractionated stereotactic radiotherapy (FFSRT) for brain metastases in an integrated academic satellite network MATERIALS/METHODS: This IRB-approved Phase 2 trial was conducted for patients ≥18-years-old with 1-4 brain metastases. Brain metastases involving the optic pathway or brainstem were excluded. Gross tumor volume (GTV) was delineated with a volumetric brain MRI and planning target volume (PTV) was GTV + 2 mm margin. Radiation dose was based on GTV size: < 3.0 cm, 27 Gy in 3 fractions, and 3.0-3.9 cm, 30 Gy in 5 fractions. Toxicity was evaluated using the Common Terminology Criteria for Adverse Events (CTCAE) version 4. RESULTS Of 76 evaluable patients, the median age was 67 years, 56.6% were female, 82.9% were white/Caucasian and 89.6% had an Eastern Cooperative Oncology Group performance status ≤ 2. Most brain metastases were from lung cancer (51.3%) and breast cancer (15.7%). With median follow-up of 10 months, local control was 93%, median survival was 1.8 years (95% confidence interval (CI): 1.5-2.4 years), 1-year OS was 73.8% (95% CI: 0.59-0.84), and 2-year OS was 31% (95% CI: 0.12-0.52). There were no CTCAE Grade ≥ 3 protocol-related adverse events. CONCLUSION Outcomes of this trial compare favorably with contemporary SRT trials for brain metastases. FFSRT may provide opportunities to expand SRS access for underserved populations across the MDACC enterprise and in future clinical trials for brain metastases.
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Affiliation(s)
- A K Garg
- Presbyterian Healthcare Services, Albuquerque, NM
| | - M Hernandez
- MD Anderson, Houston, TX; Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - P J Schlembach
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - M F McAleer
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - P D Brown
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN
| | - R S Gopal
- Radiation Care at Meridian Park, Tualitin, OR
| | | | - T A Swanson
- University of Texas Medical Branch, Galveston, TX
| | - S J Shah
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Sugar Land, TX
| | - J Li
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - S Ferguson
- Department of Neurosurgery, University of Texas MD Anderson Cancer Center, Houston, TX
| | - N Philip
- MD Anderson Cancer Center, HOUSTON, TX
| | - B De Gracia
- MD Anderson Cancer Center, Houston, TX, United States
| | - E Bloom
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - S G Chun
- University of Texas Southwestern Medical Center, Dallas, TX
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Matorras R, Perez-Fernandez S, Hubel A, Ferrando M, Quintana F, Vendrell A, Hernandez M. Perinatal outcomes in lesbian couples employing shared motherhood IVF compared with those performing artificial insemination with donor sperm. Hum Reprod 2023; 38:895-907. [PMID: 37009817 DOI: 10.1093/humrep/dead035] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 01/21/2023] [Indexed: 04/04/2023] Open
Abstract
STUDY QUESTION In lesbian couples, is shared motherhood IVF (SMI) associated with an increase in perinatal complications compared with artificial insemination with donor sperm (AID)? SUMMARY ANSWER Singleton pregnancies in SMI and AID had very similar outcomes, except for a non-significant increase in the rate of preeclampsia/hypertension (PE/HT) in SMI (recipient's age-adjusted odds ratio (OR) = 1.9, 95% CI = 0.7-5.2; P = 0.19), but twin SMI pregnancies had a much higher frequency of PE/HT than AID twins (recipient's age-adjusted OR = 21.7, 95% CI = 2.8-289.4; P = 0.01). WHAT IS KNOWN ALREADY Oocyte donation (OD) pregnancies are associated with an increase in perinatal complications, in particular, preterm delivery and low birth weight, and PE/HT. However, it is unclear to what extent these complications are due to OD process or to the conditions why OD was performed, such as advanced age and underlying health conditions. Unfortunately, the literature concerning perinatal outcomes in SMI is scarce. STUDY DESIGN, SIZE, DURATION Retrospective study involving 660 SMI cycles (299 pregnancies) and 4349 AID cycles (949 pregnancies) assisted over a 10-year period. PARTICIPANTS/MATERIALS, SETTING, METHODS All cycles fulfilling the inclusion criteria performed in lesbian couples seeking fertility treatment in 17 Spanish clinics of the same group. Pregnancy rates of SMI and AID cycles were compared. Perinatal outcomes were compared: gestational length, newborn weight, preterm and low birth rates, PE/HT rates, cesarean section rates, perinatal mortality, and newborn malformations. MAIN RESULTS AND THE ROLE OF CHANCE Pregnancy rates were higher in SMI than in AID (45.3% versus 21.8%, P < 0.001). There was a non-significant trend to higher multiple rate in AID (4.7% versus 8.5%, P = 0.08). In single pregnancies, there were no differences between SMI and AID in gestational age (278 days (268-285) versus 279 (272-284), P = 0.24), preterm rate (8.3% versus 7.3%, P = 0.80), preterm <28 weeks (0.6% versus 0.4%, P = 1.00), newborn weight (3195 g (2915-3620) versus 3270 g (2980-3600), P = 0.296), low birth rate (6.4% versus 6.4%, P = 1.00), extremely low birth weight (0.6% versus 0.5%, P = 1.00), and the distribution of newborns by weight groups. Cesarean section rate, newborn malformation rate, and perinatal mortality were also similar in SMI and AID. Additionally, there was non-significant trend in hypertensive disorders to an increase in PE/HT among SMI (recipient's age-adjusted OR = 1.9, 95% CI = 0.7-5.2). Overall, perinatal data are consistent with what is reported in the general population. In twin pregnancies, the aforementioned perinatal parameters were also very similar in SMI and AID. However, SMI twin pregnancies had a very high risk of PE/HT when compared with AID (recipient's age-adjusted OR = 21.7, 95% CI = 2.8-289.4, P = 0.01). LIMITATIONS, REASONS FOR CAUTION Our data regarding the pregnancy course were obtained from information registered in the delivery report as well as from what was reported by the patients themselves, so a certain degree of inaccuracy cannot be ruled out. Additionally, in some parameters, there was up to 10% of data missing. However, since the methodology of reporting was the same in SMI and AID groups, one should not expect a differential reporting bias. It cannot be ruled out that the risk of PE/HT in simple gestations would be significant in a larger study. Additionally, in the SMI group allocation to the transfer of 2 embryos was not randomized so some bias is possible. WIDER IMPLICATIONS OF THE FINDINGS SMI, if single embryo transfer is performed, seems to be is a safe procedure. Double embryo transfer should not be performed in SMI. Our data suggest that the majority of complications in OD could be related more with recipient status than with OD itself, since with SMI (performed in women without fertility problems) the perinatal complications were much lower than usually described in OD. STUDY FUNDING/COMPETING INTEREST(S) No external funding was received. The authors declare that they have no conflict of interest. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- R Matorras
- Instituto Valenciano de Infertilidad (IVI) Bilbao, Leioa, Spain
- Human Reproduction Unit, Cruces University Hospital, Barakaldo, Spain
- Faculty of Medicine, University of the Basque Country, Bizkaia, Spain
- Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
| | | | - A Hubel
- IVI Foundation, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Valencia, Spain
| | - M Ferrando
- Instituto Valenciano de Infertilidad (IVI) Bilbao, Leioa, Spain
| | - F Quintana
- Instituto Valenciano de Infertilidad (IVI) Bilbao, Leioa, Spain
| | - A Vendrell
- Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
| | - M Hernandez
- Faculty of Medicine, University of the Basque Country, Bizkaia, Spain
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Levin J, Döhrmann S, Dedeic N, Almaguer A, Zuill D, Abelovski E, Grewal R, Fortier J, Zhao Q, Hernandez M, Amundson K, Moniz M, Chen H, Panickar D, Lam T, Brady T, Borchardt A, Cole J, Tari L. 45P Discovery of CBO-212, a first-in-class drug Fc-conjugate (DFC), targeting CD73 in cancer. ESMO Open 2023. [DOI: 10.1016/j.esmoop.2023.101011] [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: 03/11/2023] Open
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Castelli F, Valero-Breton M, Hernandez M, Guarda F, Cornejo J, Cabello-Verrugio C, Cabrera D. Regulatory Mechanisms of Muscle Mass: The Critical Role of Resistance Training in Children and Adolescent. Adv Exp Med Biol 2023; 1410:21-34. [PMID: 36280657 DOI: 10.1007/5584_2022_743] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Muscle mass and strength are subjected to several regulations. We found endocrine signals such as growth hormone, insulin-like growth factor 1, testosterone, thyroid hormones, and glucocorticoids among them. Neural inputs also influence muscle development, modulating mass and strength. Among the external stimuli that modulate these muscular features is physical training such as resistance and endurance training. Specifically, resistance training can mediate an increase in muscle mass by hypertrophy in adults, but the effects in children and adolescents are full of myths for most of the population. However, the evidence shows that the impact of resistance training on children and adolescents is clear and provides a wide range of benefits. However, qualified professionals must be available since exercise prescription and subsequent supervision must follow this population's abilities, needs, and interests.
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Affiliation(s)
- F Castelli
- Experimental Hepatology Laboratory, Department of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - M Valero-Breton
- Laboratory of Muscle Pathology, Fragility and Aging, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile
| | - M Hernandez
- Experimental Hepatology Laboratory, Department of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - F Guarda
- Departmento de Endocrinología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - J Cornejo
- Experimental Hepatology Laboratory, Department of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - C Cabello-Verrugio
- Laboratory of Muscle Pathology, Fragility and Aging, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile.
- Millennium Institute on Immunology and Immunotherapy, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile.
- Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago, Chile.
| | - D Cabrera
- Experimental Hepatology Laboratory, Department of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
- School of Medicine, Faculty of Medical Sciences, Universidad Bernardo O Higgins, Santiago, Chile.
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Damoiselet C, Veynachter T, Jager S, Baudet A, Hernandez M, Clément C. Teledentistry and management protocol in a pediatric dental department during the first COVID-19 lockdown. Arch Pediatr 2023; 30:20-24. [PMID: 36473751 PMCID: PMC9682046 DOI: 10.1016/j.arcped.2022.11.005] [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] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 08/23/2022] [Accepted: 11/11/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND During the first COVID-19 lockdown, from March 12 to May 15, 2020, private dental practices in France and in many other countries remained closed. Dental emergencies were therefore partly redirected to hospital dental departments. The aim of this article is to describe the modalities of remote management of emergencies during this period, by the pediatric dentistry department of Nancy University Hospital (France), via an oral telemedicine protocol. PATIENTS AND METHODS All parents of children in difficulty were invited to contact the department by phone. Initial triage was managed by externs, interns, or dental practitioners following a management protocol specifically adapted to pediatric dentistry for this context. Depending on the situation (type of complaint, geographical location of the patients, possibility of travel, availability of digital equipment, etc.), an oral telemedicine solution was proposed using the Covotem® software (Maincare Society, Canejan, France) via the Pulsy platform (public interest grouping validated by the Grand Est Regional Agency for Health) and possibly using an intraoral photographic protocol suggested by the team. RESULTS During this period, 176 patients used the pediatric dental department, 40 of whom were managed via oral telemedicine. Of these children, 57% (23/40) required an appointment in the department during the lockdown, 30% (12/40) did not require follow-up, and 13% (5/40) required a post-lockdown appointment. This teledentistry protocol resulted in a diagnosis in most cases (93%). CONCLUSION Patient management through oral telemedicine appears to be an effective tool for planning and organizing oral healthcare. It should be more widely considered in dentistry in the current context of pressure in medical emergencies, significant medical needs, and medical desertification.
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Affiliation(s)
- C Damoiselet
- Université de Lorraine, Faculté d'odontologie, F-54000 Nancy, France
| | - T Veynachter
- CHRU-Nancy, Université de Lorraine, Faculté d'odontologie, F-54000 Nancy, France; Université de Lorraine, Interpsy, EA 4432, F-54000 Nancy, France
| | - S Jager
- CHRU-Nancy, Université de Lorraine, Faculté d'odontologie, F-54000 Nancy, France; Université de Lorraine, 2LPN, EA7489, F-54000 Nancy, France
| | - A Baudet
- CHRU-Nancy, Université de Lorraine, Faculté d'odontologie, F-54000 Nancy, France
| | - M Hernandez
- CHRU-Nancy, Université de Lorraine, Faculté d'odontologie, F-54000 Nancy, France; Université de Lorraine, SIMPA, EA 7300, F-54000 Nancy, France
| | - C Clément
- CHRU-Nancy, Université de Lorraine, Faculté d'odontologie, F-54000 Nancy, France; Université de Lorraine, Interpsy, EA 4432, F-54000 Nancy, France.
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Segal N, Tie J, Kopetz S, Ducreux M, Chen E, Dienstmann R, Hollebecque A, Reilley M, Elez Fernandez M, Cosaert J, Cain J, Hernandez M, Hewson N, Cooper Z, Dressman M, Tabernero J. 160P COLUMBIA-1: A phase Ib/II, open-label, randomized, multicenter study of durvalumab plus oleclumab in combination with chemotherapy and bevacizumab as first-line (1L) therapy in metastatic microsatellite-stable colorectal cancer (MSS-mCRC). Immuno-Oncology and Technology 2022. [DOI: 10.1016/j.iotech.2022.100272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Ramos-Castillo I, Hernandez M, Chapman CF, Raynor A, Dharod J. Examination of the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) use and infant feeding choices. J Acad Nutr Diet 2022. [DOI: 10.1016/j.jand.2022.08.098] [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: 11/15/2022]
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Derderian N, Pereira-Prado V, Hernandez M, Isiordia-Espinoza M, Arocena M, González-González R, Tremillo-Maldonado O, Meleti M, Molina-Frechero N, Bologna-Molina R. Ep-CAM (MOC-31) expression in tooth germ and ameloblastoma. Med Oral Patol Oral Cir Bucal 2022; 27:e403-e409. [PMID: 35975801 PMCID: PMC9445613 DOI: 10.4317/medoral.25145] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 07/16/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Ep-CAM, a transmembrane glycoprotein expressed in most epithelium in normal conditions, has diverse roles in these tissues, including in cell adhesion, proliferation, differentiation, cell cycle regulation, migration and intracellular signaling. It is also over-expressed in most malignant neoplasia, participating in the initiation, progression, and metastatic dissemination of the tumor. The expression and roles of this protein in oral neoplasia, particularly in odontogenic tumors, remain unestablished. The objective of this study consisted in analyzing the expression of this protein in ameloblastoma and tooth germ. MATERIAL AND METHODS Ep-CAM (MOC-31) expression was evaluated by immunohistochemistry in tooth germs (TG) (n = 16) ameloblastomas (AM) (n = 60) and 2 ameloblastic carcinomas. Sections were visualized in their totality with an optical microscope, and positivity observed in cell membrane and cytoplasm was graded according to the following semi-quantitative scale: Neg, "essentially unstained", for negative sections or staining <5% of cells; + for staining of 5-50% of cells; ++ for staining >50% of cells. RESULTS Most tooth germs expressed MOC-31 (81.3%), strong staining was observed both in the inner epithelium of the enamel organ and in the adjacent stellate reticulum. 16.7% of the AM cases showed MOC-31 expression, the immunoexpression expression was diffuse at the cytoplasmic and membrane level. The only two cases of ameloblastic carcinoma included were strong positive to MOC-31. No correlation was observed between protein expression and gender, age, clinical variants, or histological subtypes. CONCLUSIONS Overexpression was found in TG and ameloblastic carcinoma compared to AM; further studies with different experimental strategies are suggested to clarify the biological significance of this finding.
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Affiliation(s)
- N Derderian
- Molecular Pathology, School of Dentistry Universidad de la República (UDELAR) Las Heras 1925, Montevideo 14600, Uruguay
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Ogawa M, Jiang JX, Xia S, Yang D, Ding A, Laselva O, Hernandez M, Cui C, Higuchi Y, Suemizu H, Dorrell C, Grompe M, Bear CE, Ogawa S. Generation of functional ciliated cholangiocytes from human pluripotent stem cells. Nat Commun 2021; 12:6504. [PMID: 34764255 PMCID: PMC8586142 DOI: 10.1038/s41467-021-26764-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 06/09/2020] [Accepted: 10/21/2021] [Indexed: 12/15/2022] Open
Abstract
The derivation of mature functional cholangiocytes from human pluripotent stem cells (hPSCs) provides a model for studying the pathogenesis of cholangiopathies and for developing therapies to treat them. Current differentiation protocols are not efficient and give rise to cholangiocytes that are not fully mature, limiting their therapeutic applications. Here, we generate functional hPSC-derived cholangiocytes that display many characteristics of mature bile duct cells including high levels of cystic fibrosis transmembrane conductance regulator (CFTR) and the presence of primary cilia capable of sensing flow. With this level of maturation, these cholangiocytes are amenable for testing the efficacy of cystic fibrosis drugs and for studying the role of cilia in cholangiocyte development and function. Transplantation studies show that the mature cholangiocytes generate ductal structures in the liver of immunocompromised mice indicating that it may be possible to develop cell-based therapies to restore bile duct function in patients with biliary disease.
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Affiliation(s)
- Mina Ogawa
- grid.231844.80000 0004 0474 0428McEwen Stem Cell Institute, University Health Network, Toronto, ON Canada
| | - Jia-Xin Jiang
- grid.42327.300000 0004 0473 9646Programme in Molecular Medicine, Research Institute, Hospital for Sick Children, Toronto, ON Canada
| | - Sunny Xia
- grid.42327.300000 0004 0473 9646Programme in Molecular Medicine, Research Institute, Hospital for Sick Children, Toronto, ON Canada
| | - Donghe Yang
- grid.231844.80000 0004 0474 0428McEwen Stem Cell Institute, University Health Network, Toronto, ON Canada
| | - Avrilynn Ding
- grid.231844.80000 0004 0474 0428McEwen Stem Cell Institute, University Health Network, Toronto, ON Canada
| | - Onofrio Laselva
- grid.42327.300000 0004 0473 9646Programme in Molecular Medicine, Research Institute, Hospital for Sick Children, Toronto, ON Canada
| | - Marcela Hernandez
- grid.231844.80000 0004 0474 0428McEwen Stem Cell Institute, University Health Network, Toronto, ON Canada
| | - Changyi Cui
- grid.231844.80000 0004 0474 0428McEwen Stem Cell Institute, University Health Network, Toronto, ON Canada
| | - Yuichiro Higuchi
- grid.452212.20000 0004 0376 978XCentral Institute for Experimental Animals, Kawasaki, Kanagawa Japan
| | - Hiroshi Suemizu
- grid.452212.20000 0004 0376 978XCentral Institute for Experimental Animals, Kawasaki, Kanagawa Japan
| | - Craig Dorrell
- grid.5288.70000 0000 9758 5690Oregon Stem Cell Center, Oregon Health and Science University, Portland, OR USA
| | - Markus Grompe
- grid.5288.70000 0000 9758 5690Oregon Stem Cell Center, Oregon Health and Science University, Portland, OR USA
| | - Christine E. Bear
- grid.42327.300000 0004 0473 9646Programme in Molecular Medicine, Research Institute, Hospital for Sick Children, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Physiology, University of Toronto, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Biochemistry, University of Toronto, Toronto, ON Canada
| | - Shinichiro Ogawa
- McEwen Stem Cell Institute, University Health Network, Toronto, ON, Canada. .,Ajmera Transplant Centre, Toronto General Research Institute, University Health Network, Toronto, ON, Canada. .,Department of Surgery, Shinshu University School of Medicine, Matsumoto, Nagano, Japan. .,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.
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Lakomy D, Wu J, Yoder A, Hernandez M, Ayoola-Adeola M, Jhingran A, Klopp A, Soliman P, Peterson S, Lin L. Impact of Treatment Modality on Pelvic Floor Dysfunction for Uterine Cancer Survivors. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.312] [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: 11/15/2022]
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Tenison E, Hernandez M, Mazza N, Pommier N, Rush E, Capone G, Testa N, Carr A, Holshue H, Schmid R, Carey K, Grega L. The Effect of COVID-19 Related Stress on the Health and Wellness Behaviors of Faculty and Staff at a Mid-Size University. J Acad Nutr Diet 2021. [DOI: 10.1016/j.jand.2021.06.270] [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: 10/20/2022]
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Hernandez M, Pommier N. Impact of COVID-19 Restrictions on the Stress Levels and Wellness Behaviors of Faculty and Staff at a Mid-Size University. J Acad Nutr Diet 2021. [DOI: 10.1016/j.jand.2021.06.251] [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: 10/20/2022]
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Tenison E, Hernandez M, Mazza N, Testa N, Pommier N, Grega L, Schmid R, Carey K, Capone G, Carr A, Holshue H, Rush E. Implementation of a University Based Wellness Program in Response to Pandemic Related Loss of Community Nutrition Supervised Practice Rotations. J Acad Nutr Diet 2021. [DOI: 10.1016/j.jand.2021.06.208] [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: 10/20/2022]
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15
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Tenison E, Hernandez M, Mazza N, Pommier N, Holshue H, Carr A, Testa N, Grega L, Schmid R, Carey K, Capone G, Rush E. The Barriers and Enablers to Participation in Wellness Behaviors Post COVID-19 among Faculty and Staff at a Mid-Size University. J Acad Nutr Diet 2021. [DOI: 10.1016/j.jand.2021.06.267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Engel O, Córdoba S, Arroyo M, Rodriguez N, Fernando J, de la Fuente C, Zapata I, Velasco J, Gil B, López M, Benlloch R, Hernandez M. PO-0189 The second planning-CT in a two daily fractions implant can be omitted in cervical cancer IGABT. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06348-9] [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]
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17
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Rodriguez J, Rauh-Hain JA, Saenz J, Isla DO, Rendon Pereira GJ, Odetto D, Martinelli F, Villoslada V, Zapardiel I, Trujillo LM, Perez M, Hernandez M, Saadi JM, Raspagliesi F, Valdivia H, Siegrist J, Fu S, Hernandez Nava M, Echeverry L, Noll F, Ditto A, Lopez A, Hernandez A, Pareja R. Oncological outcomes of laparoscopic radical hysterectomy versus radical abdominal hysterectomy in patients with early-stage cervical cancer: a multicenter analysis. Int J Gynecol Cancer 2021; 31:504-511. [PMID: 33504547 DOI: 10.1136/ijgc-2020-002086] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 09/21/2020] [Revised: 01/10/2021] [Accepted: 01/13/2021] [Indexed: 12/24/2022] Open
Abstract
INTRODUCTION Recent evidence has shown adverse oncological outcomes when minimally invasive surgery is used in early-stage cervical cancer. The objective of this study was to compare disease-free survival in patients that had undergone radical hysterectomy and pelvic lymphadenectomy, either by laparoscopy or laparotomy. METHODS We performed a multicenter, retrospective cohort study of patients with cervical cancer stage IA1 with lymph-vascular invasion, IA2, and IB1 (FIGO 2009 classification), between January 1, 2006 to December 31, 2017, at seven cancer centers from six countries. We included squamous, adenocarcinoma, and adenosquamous histologies. We used an inverse probability of treatment weighting based on propensity score to construct a weighted cohort of women, including predictor variables selected a priori with the possibility of confounding the relationship between the surgical approach and survival. We estimated the HR for all-cause mortality after radical hysterectomy with weighted Cox proportional hazard models. RESULTS A total of 1379 patients were included in the final analysis, with 681 (49.4%) operated by laparoscopy and 698 (50.6%) by laparotomy. There were no differences regarding the surgical approach in the rates of positive vaginal margins, deep stromal invasion, and lymphovascular space invasion. Median follow-up was 52.1 months (range, 0.8-201.2) in the laparoscopic group and 52.6 months (range, 0.4-166.6) in the laparotomy group. Women who underwent laparoscopic radical hysterectomy had a lower rate of disease-free survival compared with the laparotomy group (4-year rate, 88.7% vs 93.0%; HR for recurrence or death from cervical cancer 1.64; 95% CI 1.09-2.46; P=0.02). In sensitivity analyzes, after adjustment for adjuvant treatment, radical hysterectomy by laparoscopy compared with laparotomy was associated with increased hazards of recurrence or death from cervical cancer (HR 1.7; 95% CI 1.13 to 2.57; P=0.01) and death for any cause (HR 2.14; 95% CI 1.05-4.37; P=0.03). CONCLUSION In this retrospective multicenter study, laparoscopy was associated with worse disease-free survival, compared to laparotomy.
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Affiliation(s)
- Juliana Rodriguez
- Department of Gynecologic Oncology, Instituto Nacional de Cancerologia, Bogota, Colombia.,Department of Gynecology and Obstetrics, Section of Gynecologic Oncology, Fundacion Santa Fe de Bogota, Bogota, Colombia
| | - Jose Alejandro Rauh-Hain
- Departments of Gynecologic Oncology and Reproductive Medicine and Health Services Research, University of Texas M.D. Anderson Cancer Center, Houston, Texas, USA
| | - James Saenz
- Department of Gynecologic Oncology, Instituto Nacional de Cancerologia, Bogota, Colombia
| | - David Ortiz Isla
- Department of Gynecologic Oncology, Instituto Nacional de Cancerologia, Mexico City, Mexico
| | | | - Diego Odetto
- Gynecology Oncology, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Fabio Martinelli
- Department of Gynecologic Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Vladimir Villoslada
- Department of Gynecologic Oncology, Instituto Nacional de Enfermedades Neoplasicas (INEN), Lima, Peru
| | - Ignacio Zapardiel
- Gynecologic Oncology Unit. La Paz University Hospital, La Paz University Hospital-IdiPAZ, Madrid, Spain
| | - Lina Maria Trujillo
- Department of Gynecologic Oncology, Instituto Nacional de Cancerologia, Bogota, Colombia
| | - Milagros Perez
- Department of Gynecologic Oncology, Instituto Nacional de Cancerologia, Mexico City, Mexico
| | - Marcela Hernandez
- Department of Gynecologic Oncology, Instituto de Cancerologia Las Américas, Medellín, Colombia
| | - Jose Martin Saadi
- Gynecology Oncology, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Francesco Raspagliesi
- Department of Gynecologic Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Henry Valdivia
- Department of Gynecologic Oncology, Instituto Nacional de Enfermedades Neoplasicas (INEN), Lima, Peru
| | - Jaime Siegrist
- Gynecologic Oncology Unit. La Paz University Hospital, La Paz University Hospital-IdiPAZ, Madrid, Spain
| | - Shuangshuang Fu
- Departments of Gynecologic Oncology and Reproductive Medicine and Health Services Research, University of Texas M.D. Anderson Cancer Center, Houston, Texas, USA
| | - Mindy Hernandez Nava
- Department of Gynecologic Oncology, Instituto Nacional de Cancerologia, Mexico City, Mexico
| | - Lina Echeverry
- Department of Gynecologic Oncology, Instituto de Cancerologia Las Américas, Medellín, Colombia
| | - Florencia Noll
- Gynecology Oncology, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Antonino Ditto
- Department of Gynecologic Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Aldo Lopez
- Department of Gynecologic Oncology, Instituto Nacional de Enfermedades Neoplasicas (INEN), Lima, Peru
| | - Alicia Hernandez
- Gynecologic Oncology Unit. La Paz University Hospital, La Paz University Hospital-IdiPAZ, Madrid, Spain
| | - Rene Pareja
- Department of Gynecologic Oncology, Instituto Nacional de Cancerologia, Bogota, Colombia .,Gynecologic Oncology, Clinica Astorga, Professor Universidad Pontificia Bolivariana, Medellin, Colombia
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Coffman A, Hsueh C, Hernandez M, Mirshahidi S, Wang J, Solomon N, Garberoglio C, Reeves M, Slater J, Yang G. A Phase II Trial of Gemcitabine and Erlotinib (GE) plus Proton Chemotherapy (PCT) and Capecitabine and Oxaliplatin (CapOx) for Locally Advanced Pancreatic Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1828] [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: 10/23/2022]
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19
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Nieto Callejo M, Gallardo I, Gutierrez B, Cabero M, Ruiz L, Alvarez Y, Simon I, Calvo H, Munoz J, Margolles A, San Roman J, Cachofeiro V, Hernandez M. Oleanolic acid protection against experimental autoimmune myocarditis modulates the microbiota and the intestinal barrier integrity. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3716] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Autoimmune myocarditis is a cause of dilated cardiomyopathy and heart failure. Recent studies have indicated that leaky gut may allow environmental factors to enter the body and trigger the initiation/development of autoimmune disease. Moreover, there is a growing literature supporting that, beside myocardial fibrosis, a leaky intestinal barrier and gut dysbiosis are pathogenic factors linked to heart failure. The natural triterpene oleanolic acid (OA) has been shown to beneficially influence the severity of the experimental autoimmune myocarditis (EAM), a preclinical model of human myocarditis, via anti-oxidant and immunomodulatory mechanisms. Herein, we investigate gastrointestinal (GI) disturbances and the gut microbiota composition associated with EAM as potential therapeutic target of OA.
Methods and results
BALB/c mice were α-myosin-inmunized to induce EAM and treated with OA (25 mg/kg/day, i.p). On day 21, heart fibrosis and parameters related to gut damage such as oxidative stress (O2- ions, lipid peroxidation), gut permeability (D-lactate; I-FABP), inflammation and mucins were determined in serum and/or colon. Fecal microbial profiles were identified by 16S rRNA gene sequencing analysis. Firstly, histological analysis of hearts showed presence of fibrosis (Sirius Red stain) in EAM mice, whereas these effects were not detectable in myocardium from healthy or OA-treated EAM mice. In addition, OA preserved the mucin-containing goblet cells along the colon (Alcian Blue/PAS stain). Consistently, serum levels of the epithelial gut damage markers, including D-lactate and iFABP were significantly reduced in OA treated-EAM mice. The beneficial OA effects also included a decrease in the pro-inflammatory mediators sPLA2-IIA and IL-1β and a protection from the oxidative stress response (DHE stain and TBARS) in serum and colonic tissue of EAM-mice. Furthermore, gut microbiota composition showed a lower bacterial diversity and different relative abundance of certain bacterial taxa in EAM-mice compared to control mice. The families of Muribaculaceae, Lachnospiraceae, and Ruminococcaceae were significantly affected in EAM mice, and only Muribaculaceae recovered levels similar to the healthy-control group, after treatment with OA.
Conclusion
Our data show that in addition to the heart, the intestinal barrier and gut microbiota are altered in myocarditis, and that OA treatment could ameliorate this profile. Our data contribute to the idea that gut dysbiosis and GI dysfunction influences myocarditis pathogenesis, and provides new findings regarding the beneficial activity of OA in EAM, suggesting that it may be an interesting candidate to be explored for the treatment of human patients.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): MINECO, ISCIII, CIBERCV-ISCIII
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Affiliation(s)
- M.L Nieto Callejo
- Instituto de Biologia y Genetica Molecular, CSIC-UVA, Valladolid, Spain
| | - I Gallardo
- Instituto de Biologia y Genetica Molecular, CSIC-UVA, Valladolid, Spain
| | - B Gutierrez
- Instituto de Biologia y Genetica Molecular, CSIC-UVA, Valladolid, Spain
| | - M.I Cabero
- Instituto de Biologia y Genetica Molecular, CSIC-UVA, Valladolid, Spain
| | - L Ruiz
- Instituto de Productos Lácteos, CSIC, Asturias, Spain
| | - Y Alvarez
- Instituto de Biologia y Genetica Molecular, CSIC-UVA, Valladolid, Spain
| | - I Simon
- Instituto de Biologia y Genetica Molecular, CSIC-UVA, Valladolid, Spain
| | - H Calvo
- Instituto de Biologia y Genetica Molecular, CSIC-UVA, Valladolid, Spain
| | - J.C Munoz
- University Hospital del Rio Hortega, Cardiologia, Valladolid, Spain
| | - A Margolles
- Instituto de Productos Lácteos, CSIC, Asturias, Spain
| | - J.A San Roman
- University Hospital of Vallodolid, ICICOR, Valladolid, Spain
| | - V Cachofeiro
- Complutense University of Madrid, Department of Physiology, Madrid, Spain
| | - M Hernandez
- Complutense University of Madrid, Department of Physiology, Madrid, Spain
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Hernandez M, Chamorro M, Elfman J, Webb A, Plamootil C, Ganti L, Banerjee P. 218 Outcomes after Reversal of Anticoagulation after Intracerebral Hemorrhage. Ann Emerg Med 2020. [DOI: 10.1016/j.annemergmed.2020.09.231] [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: 10/23/2022]
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21
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Osorio-Celestino G, Hernandez M, Solis-Ibarra D, Tehuacanero-Cuapa S, Rodríguez-Gómez A, Gómora-Figueroa AP. Influence of Calcium Scaling on Corrosion Behavior of Steel and Aluminum Alloys. ACS Omega 2020; 5:17304-17313. [PMID: 32715215 PMCID: PMC7377075 DOI: 10.1021/acsomega.0c01538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 06/15/2020] [Indexed: 06/11/2023]
Abstract
Calcium scaling is a serious problem encountered in the oil and gas industry because it is common that brines produced alongside oil and gas exhibit high concentrations of calcium ions, among others, which is expensive to remedy. The precipitation of calcium salts on the internal wall of the pipelines may occur because of the physical and chemical changes as fluids are produced from downhole to surface facilities. Although different researchers have address scaling and corrosion in the oil and gas industry, there are few reports in the literature relating the corrosion and scaling phenomena simultaneously. Despite there being indications that scales may produce corrosion problems, affecting the mechanical integrity of the infrastructure, there is minimal research in the literature addressing such relations. Previous studies presented aluminum alloys as excellent and reliable materials for applications in the petroleum industry, such as drilling activities. In this work, we evaluate the corrosion behavior of steel and aluminum alloys under highly scaling environments using supersaturated brines. Our results show that the presence of calcium carbonate and calcium sulfate as a scaling environment increases the corrosion rates for aluminum alloys and carbon steel; however, the same environments do not affect the corrosion behavior of stainless steel.
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Affiliation(s)
- Gandhi
R. Osorio-Celestino
- División
de Ingeniería en Ciencias de la Tierra, Facultad de Ingeniería,
Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| | - M. Hernandez
- División
de Ingeniería Mecánica e Industrial, (DIMEI), CENISA, Facultad de IngenierıUNAM, 04510 Ciudad
de México, Mexico, 04510 Ciudad de México, Mexico
| | - Diego Solis-Ibarra
- Instituto
de Investigaciones en Materiales, UNAM, Circuito Exterior, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| | - Samuel Tehuacanero-Cuapa
- Instituto
de Física, UNAM, Circuito Exterior, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| | - Arturo Rodríguez-Gómez
- Instituto
de Física, UNAM, Circuito Exterior, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| | - A. Paulina Gómora-Figueroa
- División
de Ingeniería en Ciencias de la Tierra, Facultad de Ingeniería,
Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 Ciudad de México, Mexico
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Goravanchi F, Cerny J, Kowalski A, Kee S, Rebello E, French K, Frenzel J, Syed T, Burnett T, Hernandez M, Hagberg C. Randomised comparison of the clinical performance of Ambu Auragain and Teleflex LMA Protector. Br J Anaesth 2020. [DOI: 10.1016/j.bja.2020.04.036] [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: 11/25/2022] Open
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Hernandez M, Wailoo A, Chrysanthou G, Carvalho P, Van der Heijde D, Santos MJ, Machado PM. OP0078 MAPPING FROM THE ANKYLOSING SPONDYLITIS DISEASE ACTIVITY SCORE (ASDAS) TO EQ5D IN PATIENTS WITH AXIAL SPONDYLOARTHRITIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.6196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Clinical studies often omit outcomes that allow the direct estimation of Quality Adjusted Life Years (QALYs) for use in cost effectiveness analyses crucial for informing policy decisions. This means analysts often have to estimate the relationship, “map”, between included outcomes and preference based ones like the EuroQoL EQ5D. In ankylosing spondylitis (AS), the relationship between BASDAI/BASFI and EQ5D has been established but the emergence and growing use of the Ankylosing Spondylitis Disease Activity Score (ASDAS), a new composite index used to assess clinical disease activity, means new mapping tools are required. Furthermore mapping has never been done for the entire axial spondyloarthritis (axSpA) spectrum of patients i.e. including not only patients with AS but also those with non-radiographic axSpA.Objectives:To estimate a robust mapping between ASDAS and EQ5D (3 level version) and to test its performance out of sample (external validation) in patients with axSpA.Methods:Data from an electronic, prospective, nationwide Rheumatic Disease Portuguese Register (Reuma.pt) provided data pertaining to 1140 patients (5483 observations) with a confirmed diagnosis of axSpA was used to develop a model to predict EQ5D from the ASDAS score. We compared a range of different statistical models developed to deal with the complex distributional features of health utility data. A range of criteria examining model fit across the spectrum of disease severity were used to select preferred models. A smaller dataset for out of sample validation from the SPondyloArthritis Caught Early (SPACE) cohort was used, providing data from 317 patients (1225 observations) at five European centres.Results:Characteristics of patients from the Reuma.pt and SPACE are presented in the table. There is a non-linear relationship between ASDAS and EQ5D. We found that a four component mixture model based on a bespoke distribution, with one component constrained to reflect the mass of observations at full health, was the best fitting of the ASDAS models estimated (figure). ASDAS squared and age squared featured as within component variables. The model demonstrated close fit to the observed data where ASDAS was less than 4 but diverged from the mean of the data where ASDAS was higher. There is a very limited data at this more severe level of disease activity. In the out of sample testing, the model continued to perform well overall and exhibited the same divergence from the observed data only where data was sparse.Conclusion:There is a clear relationship between ASDAS and EQ5D that we were able to model reliably using bespoke mixture model based methods. There is more uncertainty regarding model fit at very high levels of disease activity owing to the relative paucity of data from patients in such disease activity state. Future analyses may wish to focus on these severely affected patients in order to improve the robustness of model estimates.Table.Characteristics of patients from the Reuma.pt and SPACE datasetsREUMA (n = 1140)SPACE (n = 317)NMeansdminmaxNmeansdminmaxAge at visit (yrs)548346.5811.9917.7082.70122531.447.7816.1450.46Number of visits54834.815.261.0039.0012254.051.601.008.00ASDAS total score48862.020.970.606.3011812.100.960.645.44BASDAI total score53832.972.260.0010.0012113.272.200.009.80BASFI total score52582.842.410.009.8812051.922.090.009.30EQ-5D-3L54830.700.26-0.591.0012250.690.25-0.591.00Proportion Male54830.5612250.50Figure. Mean observed versus fitted values for the preferred model mapping EQ5D-3L from ASDAS (Reuma.Pt dataset)Acknowledgments:We would like to that all the contributors to the Reuma.Pt and SPACE datasets.Disclosure of Interests:Monica Hernandez: None declared, Allan Wailoo: None declared, Georgios Chrysanthou: None declared, Pedro Carvalho: None declared, Désirée van der Heijde Consultant of: AbbVie, Amgen, Astellas, AstraZeneca, BMS, Boehringer Ingelheim, Celgene, Cyxone, Daiichi, Eisai, Eli-Lilly, Galapagos, Gilead Sciences, Inc., Glaxo-Smith-Kline, Janssen, Merck, Novartis, Pfizer, Regeneron, Roche, Sanofi, Takeda, UCB Pharma; Director of Imaging Rheumatology BV, Maria Jose Santos Speakers bureau: Novartis and Pfizer, Pedro M Machado Consultant of: PMM: Abbvie, Celgene, Janssen, Lilly, MSD, Novartis, Pfizer, Roche and UCB, Speakers bureau: PMM: Abbvie, BMS, Lilly, MSD, Novartis, Pfizer, Roche and UCB
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MacArthur C, Hernandez M, Landon M, Switalski S, Pradhan S, Guzman J, Lakshmipathy U. Efficient generation of CD4 & CD8 T cell derived iPSC for potential use in allogeneic cellular therapies. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.046] [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: 11/15/2022]
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Saenza De San Pedro B, Mur MP, Valverde L, Gonzalo Garijo MA, Hernandez M, Madariaga B, Asturias JA, Begona L, Martinez A, Gomez Fernandez M. Clinical assessment of tolerability, immunological and cutaneous reactivity effects of an abbreviated schedule with Olea europaeanative extract of subcutaneous immunotherapy. Eur Ann Allergy Clin Immunol 2019; 52:210-219. [PMID: 31789492 DOI: 10.23822/eurannaci.1764-1489.124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 11/17/2022]
Abstract
Summary Objectives. To evaluate the tolerability and efficacy of Olea europaea subcutaneous immunotherapy (SCIT) on patients with rhinoconjunctivitis. Methods. In this open clinical trial patients were assigned to an abbreviated build-up scheme. The outcomes were: number, percentage, and severity of adverse reactions. Secondary outcomes included: changes in immunoglobulin titers and changes in dose-response skin prick tests. Results. Only 8 systemic reactions were registered, which represented 7/47 (14.9%) of patients and 8/429 (1.9%) of administered doses. Regarding immunological parameters the significant increases of sIgG and sIgG4 evidenced the changes in the patient immune system. Cutaneous reactivity decreased significantly. Conclusions. Olea europaea SCIT (Allergovac® depot ROXALL Medicina España S.A.) showed a good safety and tolerability profile. Immunological changes with induction of blocking IgG and decreases in cutaneous reactivity were detected in the patients.
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Affiliation(s)
| | - M P Mur
- Hospital Santa Bárbara. Allergology Department, Puertollano, Spain
| | - L Valverde
- Hospital Costa de la Luz de Huelva. Allergology Department, Huelva, Spain
| | - M A Gonzalo Garijo
- Hospital Universitario Infanta Cristina. Allergology Department, Badajoz, Spain
| | - M Hernandez
- Hospital Nisa. Allergology Department, Seville, Spain
| | - B Madariaga
- ROXALL España, R and D Department, Zamudio, Spain
| | - J A Asturias
- ROXALL España, R and D Department, Zamudio, Spain
| | - L Begona
- ROXALL España, R and D Department, Zamudio, Spain
| | - A Martinez
- ROXALL España, R and D Department, Zamudio, Spain
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Neninger E, Caceres H, Camacho K, Hernandez M, Santiesteban E, Del Castillo C, Menendez Y, Gonzalez B. P2.01-92 Cimavax-EGF in Combination with First-Line Chemotherapy in III Stage NSCLC. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1435] [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]
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Gallardo I, Gutierrez B, Hernandez M, Cabero I, Alvarez Y, Simon I, Munoz JC, San Roman JA, Cachofeiro V, Nieto Callejo ML. P6284The antioxidant MitoQ protects against intestinal disturbances in the experimental autoimmune model of myocarditis. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0882] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Purpose
Myocarditis and dilated cardiomyopathy represent the acute and chronic phases of an inflammatory disease of the myocardium, for which no standardized treatment is currently available in clinical practice. Myocardial fibrosis an oxidative stress are pathogenic factors associated with these processes. However, new research has found that gut health can be linked to some cardiac conditions. Thus, in this study we investigated whether intestinal disturbances are present in myocarditis, using a murine experimental autoimmune model (EAM) that mimics human myocarditis, as well as the potential beneficial effect of treatment with the mitochondrial antioxidant, MitoQ.
Methods and results
EAM was induced in BALB/c mice with a myocardiogenic peptide and mice were treated with MitoQ (50 mg/kg/day, i.p). On day 21 (acute phase), we assessed signs of heart injury (e.g. hypertrophy, fibrosis, oxidative stress) and parameters related to gut damage such as accumulation of reactive oxigen species (superoxide anion: O2·−), inflammation (IL-1β, IL-33, TNFα), microbial translocation (sCD14; intestinal fatty acid binding protein, I-FABP) and mucins in serum and/or intestine. MitoQ teatment significantly reduced the high heart weight/body weight ratio (HW/BW) of EAM mice, a characteristic hallmark of cardiac hyperthropy. Histological analysis of hearts showed presence of fibrosis (Sirius Red stain) and high O2·− levels (DHE stain) in EAM mice whereas these effects were not detectable in cardiac tissue from healthy or MitoQ-treated EAM mice. In addition, the enhanced O2·− ions (DHE stain) and mucin loss (Alcian Blu/PAS stain) found in colon, ileum, jejunum and duodenum sections from EAM mice were attenuated by MitoQ treatment. The systemic markers associated to intestinal barrier disruption, sCD14 and I-FABP, were found strongly increased in serum from EAM mice, and MitoQ prevents this rise. The beneficial MitoQ effects were also associated with a decrease in the pro-inflammatory cytokines TNFα, IL-33 and IL-1β, both in serum and colonic tissue of treated-EAM mice, as well as a reduction of the myeloperoxidase activity in colon, compared with untreated EAM mice.
Conclusion
Our data show that in addition to the heart, the intestinal tissue is also damaged in the preclinical model of experimental autoimmune myocarditis, and that MitoQ treatment could reverse this profile. Since there are systemic markers released from the intestine, therapeutic strategies targeting to prevent the intestinal oxidative stress and its associated gut barrier dysfunction, could contribute to the amelioration of the disease.
Acknowledgement/Funding
SAF2016-81063; CIBERCV
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Affiliation(s)
- I Gallardo
- Institute of Biology & Molecular Genetic, CSIC-UVA, Valladolid, Spain
| | - B Gutierrez
- Institute of Biology & Molecular Genetic, CSIC-UVA, Valladolid, Spain
| | - M Hernandez
- Institute of Biology & Molecular Genetic, CSIC-UVA, Valladolid, Spain
| | - I Cabero
- Institute of Biology & Molecular Genetic, CSIC-UVA, Valladolid, Spain
| | - Y Alvarez
- Institute of Biology & Molecular Genetic, CSIC-UVA, Valladolid, Spain
| | - I Simon
- Institute of Biology & Molecular Genetic, CSIC-UVA, Valladolid, Spain
| | - J C Munoz
- University Hospital del Rio Hortega, Cardiologia, Valladolid, Spain
| | - J A San Roman
- University Hospital of Vallodolid, ICICOR, Valladolid, Spain
| | - V Cachofeiro
- Complutense University of Madrid, Department of Physiology, Madrid, Spain
| | - M L Nieto Callejo
- Institute of Biology & Molecular Genetic, CSIC-UVA, Valladolid, Spain
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Morales OS, Neninger E, Carrodeguas R, Luaces P, Rodríguez P, Hernandez M, González C, Crombet T. P2.01-33 Survival Benefit of Depleting High Serum EGF Concentration in Advanced NSCLC Patients as Switch Maintenance Therapy. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1377] [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: 11/29/2022]
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Doherty LS, Bari S, Gany F, Leng J, Duch T, Reveille D, Morris JS, Hernandez M, Nadas A, Costa M, Zelikoff JT. Community health perceptions and human environmental exposure to chromium contamination in a small New Jersey City. ACTA ACUST UNITED AC 2019; 2. [PMID: 34113778 DOI: 10.15761/pmch.1000122] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Following a 1983 chromic acid (hexavalent chromium [CrVI]) spill from a Garfield, NJ electroplating plant, CrVI-contaminated water was found in a local firehouse basement in 1993. An ATSDR public health advisory was issued for the plant site in 2010, and from 2008-2015, fourteen residential properties have required remediation to address CrVI-contaminated dust in the basements. As part of the Community Outreach and Engagement Core of the NYU NIEHS Center, seventytwo Garfield residents aged 18-65 years, participated in a community survey with the goal of identifying concerns related to environmental and community health. Thirty-two percent responded that they 'didn't know' if they were exposed to chemicals or pollutants where they live. This finding suggests a limited awareness of environmental chemical exposures, chromium contamination and/or potential exposure to CrVI. Furthermore, toenail clippings were collected from forty-seven Garfield residents and analyzed for total chromium levels to assess potential long-term exposure. On average, residents living on/inside the contaminated plume area had higher total chromium levels in their toenail clippings than residents living outside the plume area. However, chromium levels for all participants were within the range of historical normal. This study highlights the value of partnerships between environmentally-impacted community's and academic scientists working together to identify potential contaminant exposures and address public health concerns through research and environmental health education.
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Affiliation(s)
- Lyons Sp Doherty
- Department of Environmental Medicine, New York University School of Medicine, USA
| | | | - F Gany
- Memorial Sloan-Kettering Cancer Center, Immigrant Health and Cancer Disparities Center, USA
| | - J Leng
- Memorial Sloan-Kettering Cancer Center, Immigrant Health and Cancer Disparities Center, USA
| | - T Duch
- City of Garfield, NJ, USA
| | | | - J S Morris
- Research Reactor Center, University of Missouri, USA
| | | | - A Nadas
- Department of Environmental Medicine, New York University School of Medicine, USA
| | - M Costa
- Department of Environmental Medicine, New York University School of Medicine, USA
| | - J T Zelikoff
- Department of Environmental Medicine, New York University School of Medicine, USA
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Jergova S, Dugan E, Hernandez M, Arthur A, Restrepo M, Sagen J. (279) Management of SCI-Induced Chronic Pain in Rats: Intensive Locomotor Training and Recombinant GABAergic Cell Tranplants. The Journal of Pain 2019. [DOI: 10.1016/j.jpain.2019.01.201] [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] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Pasquali P, Hernandez M, Pasquali C, Fernandez K. Actitudes de pacientes hacia la fotografía médica. Estudio en población española: Pius Hospital de Valls (Tarragona, España). Actas Dermo-Sifiliográficas 2019; 110:131-136. [DOI: 10.1016/j.ad.2018.10.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 09/23/2018] [Accepted: 10/01/2018] [Indexed: 10/27/2022] Open
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Nikparvar B, Subires A, Capellas M, Hernandez M, Bar N. A Dynamic Model of Membrane Recovery Mechanisms in Bacteria following High Pressure Processing. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.ifacol.2019.06.069] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Apellániz D, Pereira-Prado V, Sicco E, Vigil-Bastitta G, González-González R, Mosqueda-Taylor A, Molina-Frechero N, Hernandez M, Sánchez-Romero C, Bologna-Molina R. Comparative Study of the Minichromosome Maintenance Proteins Complex (MCM 4/5/6) in Ameloblastoma and Unicystic Ameloblastoma. Int J Surg Pathol 2018; 26:714-720. [PMID: 29845895 DOI: 10.1177/1066896918778341] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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] [Indexed: 02/05/2023]
Abstract
INTRODUCTION Solid/conventional ameloblastoma (AM) and unicystic ameloblastoma (UAM) are the most frequent benign epithelial odontogenic tumors located in the maxillary region, and their treatment usually consists of extensive surgical resection. Therefore, it is relevant to study molecular markers to better understand the biological behavior of these tumors. The aim of this study was to describe and compare the expression of proteins related to cellular proliferation: Ki-67 and MCM4-6 complex. MATERIALS AND METHODS An immunohistochemistry technique was performed, with antibodies against Ki-67, MCM4, MCM5, and MCM6, in 10 AM and 10 UAM tumors. The results were quantified using label index and analyzed statistically. RESULTS AM and UAM had greater expression of MCM6, followed by MCM5, MCM4, and Ki-67 ( P < .05). Immunoexpression of Ki-67 and MCM5 was exclusively nuclear, whereas the expression of MCM4 and MCM6 was nuclear and cytoplasmic. CONCLUSION The results suggest that MCM5 is a trustable cell proliferation marker with higher sensitivity compared with Ki-67 and may be useful to predict the biological behavior of AM and UAM. Despite this, further studies are necessary, including a correlation with clinical parameters to confirm these findings.
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Sastre J, Crespo A, Fernandez-Sanchez A, Rial M, Plaza V, González FC, López JJ, Riaza MM, Orenes MM, Montaño PP, Toro MT, Balaguer CA, Girones MA, Martinez CB, Martín IF, Delgado PG, Calahorro MM, Carrasco GM, Pacheco RR, Tomás VV, Godoy MM, Yébenes JZ, Balza De Vallejo OV, Fernandez JA, Gonzalez TB, De Las Pozas GC, Donado CD, Angulo SD, Ortiz GG, Mañana BR, Gonzalez RB, Nieves EG, Torrado JM, Culla MD, Pla JJ, Bellfill RL, Velasco JM, Nogues EP, Ortun MR, Aguñin PR, Farre NS, Combas JV, Zubeldia IA, Hortigüela GB, Ayuso JC, Álvarez GG, Peña MH, Castro AL, Llorente PL, Martinez PM, Malanda NM, Gonzalez FG, Miguel TP, Hernandez M, Timon SJ, Carreño SP, Olbah MA, Muñoz AA, Mohedad JC, Fernandez DG, Camacho AL, Lopez CM, Gonzalez MM, Bernal SN, Pellon LF, Miguel EM, Portal FO, Rodríguez AS, Alapont MM, Raducan I, Segarra MS, Bonilla PG, Calderon PM, Rodriguez MM, Martinez RL, Pérez MM, Villarejo MM, Aparicio MB, Muíño Joga MD, Garcia-Boente LF, Paz VG, Barcala FG, Orjales RN, Castedo CR, Diaz MR, Fernandez AM, Español SA, San Francisco AR, Navarrete BA, Gomez De Cadiz LC, Rodriguez ME, Lopez JF, Jiménez ML, Caballero JL, Ceres MM, Costoya RM, García CM, Vilchez MR, Ortiz AR, Mazuecos JB, Castro AV, Arenaza BL, Mendizabal SL, Sampedro IP, Vazquez LV, De Sus JC, Villa JC, Pargada DF, Jarque JH, Patiño MC, Gomila AF, Pastrie FN, Lopez JA, Martinez PB, Ruiz De Lobera AV, Gonzalez FC, Carral CP, Racamonde AV, Del Pino MC, Sacanell JR, García IA, Mejias YA, Bausela BA, Cozar MA, Sanz PB, Bobolea I, Fernandez AB, De Santiago Delgado E, Campos RD, Uña JD, Vila AF, Cano MG, De Pedro JG, Galicia MG, De Olano DG, Barbudo BH, Viña AL, Peña AL, Martin GM, De Francisco AM, Borque RM, Moro M, Prieto MR, Frutos MR, Jimenez BR, Rodríguez M, Ribate DR, Perez FR, Hornillos JR, López PS, Martinez FS, Garrido-Lestache JS, Gambasica ZV, Albelda CV, Ramirez JA, De Luiz Martínez G, Núñez IG, De Luna FL, Sáenz De Tejada EO, Galo AP, Martinez RR, Esojo MS, Espinosa RA, Inglés MA, Mora RB, Campos MF, Arellano MP, Puebla MA, Figueroa BG, Fernández SG, Rivera JO, Purroy AT, Garazo BP, Losada SV, Villamuza YG, Bonny JC, Sintes RA, Landin JC, Paz AC, Abelaira MC, Rio FI, Sanmartín AP, Picans I, Moreira AR, Romera RT, Aznar JI, Bellido FM, Hernandez MR, Perez RG, Flores HI, Gutierrez FA, Cimbollek S, De Luque Piñana V, Gallardo JM, Garcia VM, Cuevas JO, Crespo YP, Enriquez JQ, Dominguez PS, Elias ÒS, Pamplona MM, Lara MJ, De Gregorio AM, Martin MA, Canelles MB, Baixauli EB, Serra PC, Gregori MC, Rodriguez PC, De Las Marinas Alvarez M, Palacios MD, El-Qutob López D, Giner JG, Lara SH, Martínez GJ, Santafé JL, Bayo AL, Moragon EM, Sancho IM, Lacomba JM, Sendra EN, Seisdedos LN, Bertol BO, Iniesta AR, Cubillan JR, Sánchez-Toril López F, Vinuesa AS, Gomez AA, De Frutos Arribas J, Fernandez EM, Alonso AS, Sanz CC, Fuentes MD, Sotillos MG, Arazuri NS. Anxiety, Depression, and Asthma Control: Changes After Standardized Treatment. The Journal of Allergy and Clinical Immunology: In Practice 2018; 6:1953-1959. [DOI: 10.1016/j.jaip.2018.02.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 01/28/2018] [Accepted: 02/01/2018] [Indexed: 11/28/2022]
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Patino D, McQuistan MR, Qian F, Hernandez M, Weber-Gasparoni K, Macek MD. Oral health knowledge levels of Hispanics in Iowa. J Am Dent Assoc 2018; 149:1038-1048. [PMID: 30322589 DOI: 10.1016/j.adaj.2018.07.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 06/10/2018] [Accepted: 07/31/2018] [Indexed: 11/19/2022]
Abstract
BACKGROUND Hispanics disproportionately experience preventable oral health conditions in the United States. This study aimed to determine the oral health knowledge (OHK) of Hispanic adults in Iowa to identify potential gaps in knowledge. METHODS This cross-sectional study included a convenience sample of self-identifying Hispanic adults. Data pertaining to oral health literacy and demographic, cultural, and dental characteristics were collected. OHK was assessed with the Conceptual Measure of Oral Health Knowledge, and it was categorized as low or high. Bivariate analyses and multiple logistic regression models were conducted to identify the variables related to OHK (P < .05). Institutional review board approval was obtained. RESULTS Three hundred thirty-eight participants completed the questionnaire, 68% of participants completed the questionnaire in Spanish, and 51% of all participants had low OHK. Participants were less likely to correctly answer questions pertaining to children's oral health, periodontal disease, and oral cancer. Low OHK was associated with having less than 12th grade education, lack of dental insurance, and preference for a Spanish-speaking oral health care provider. CONCLUSIONS AND PRACTICAL IMPLICATIONS OHK appears to be low in this population. Increasing OHK may help decrease oral health disparities and improve oral health outcomes. Furthermore, it is important that oral health care providers have an understanding of barriers that can impede patients' understanding of the health care system. Specifically, minority populations, such as Hispanics, may have a harder time because of certain cultural differences that exist among this ethnic group.
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Stoore C, Andrade C, Hidalgo C, Corrêa F, Jiménez M, Hernandez M, Paredes R. Echinococcus granulosus hydatid cyst location is modified by Fasciola hepatica infection in cattle. Parasit Vectors 2018; 11:542. [PMID: 30305164 PMCID: PMC6180525 DOI: 10.1186/s13071-018-3128-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 09/30/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Natural parasite infection occurs in wild and domestics animals with more than one parasite species at the same time, generating an infection called polyparasitism. Cystic echinococcosis reports are usually based only on infection with Echinoccocus granulosus leaving aside other internal parasitoses that could modulate both the immune response and pathogenesis of the natural infection. Fasciola hepatica is another cosmopolitan parasite in ruminants with a similar distribution to E. granulosus in different parts of the world, but no information of the effect of co-infection with E. granulosus has been described. The aims of this report were to establish E. granulosus prevalence and explore the association of F. hepatica co-infection and natural E. granulosus infections in cattle. RESULTS From 1725 animals, the prevalence of E. granulosus and F. hepatica was 21.16 and 51.3%, respectively. Considering both infections, older cattle (> 4 years) presented higher prevalence compared to younger animals. In E. granulosus-infected cattle, 5.21% had fertile cysts, 71.78% infertile cysts, and in 23.01% cysts were smaller than 1 cm in diameter. Considering cyst location, 39.72% had lungs cysts, 24.72% had liver cysts and 36.94% had cysts in both organs. Cyst location significantly differed between age groups: 44.68% of younger animals had cysts only in the lungs, while older animals presented hydatid cyst in the lungs and liver simultaneously (44.15%). With E. granulosus infection alone, 30.26% of cysts were found in the lungs, 31.79% in the liver and 37.95% in both organs. Regarding the co-infection of E. granulosus with F. hepatica, the proportion was significantly different (P < 0.05) with most animals having cysts only in the lungs (49.41%) and a lower level of liver infection (15.88%). Analyzing organ cyst distribution and F. hepatica absence/presence ratio within each cyst type, small cysts showed the highest difference in ratio. CONCLUSIONS To the best of our knowledge, this is the first report indicating that F. hepatica co-infection in cattle could be affecting the instate of hydatid cysts in the liver, displacing toward lung localization, suggesting an antagonistic relationship.
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Affiliation(s)
- Caroll Stoore
- Escuela de Medicina Veterinaria, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Constanza Andrade
- Escuela de Medicina Veterinaria, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Christian Hidalgo
- Escuela de Medicina Veterinaria, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Felipe Corrêa
- Escuela de Medicina Veterinaria, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Mauricio Jiménez
- Escuela de Medicina Veterinaria, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Marcela Hernandez
- Laboratorio de Biología Periodontal, Facultad de Odontología, Universidad de Chile, Santiago, Chile
- Facultad de Ciencias de la Salud, Universidad Autonoma de Chile, Santiago, Chile
| | - Rodolfo Paredes
- Escuela de Medicina Veterinaria, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
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Hernandez M, Neninger E, Santiesteban E, Camacho K, Hernandez N, Amador R, Acosta S, Gonzalez Y, Jimenez Y, Corella M, Ortiz R, Bello L, Calana A, Pichs G, Cala M, Flores Y, Viada C, Robaina M, Crombet T. Efficacy of racotumomab or nimotuzumab vs docetaxel as second-line therapy for advanced non-small cell lung cancer patients. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy288.037] [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: 11/13/2022] Open
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Montaña S, Fernandez JS, Barenboim M, Hernandez M, Kayriyama C, Carulla M, Iriarte A, Ramirez MS, Almuzara M. Whole-genome analysis and description of an outbreak due to carbapenem-resistant Ochrobactrum anthropi causing pseudo-bacteraemias. New Microbes New Infect 2018; 26:100-106. [PMID: 30345061 PMCID: PMC6191975 DOI: 10.1016/j.nmni.2018.09.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 06/29/2018] [Revised: 09/04/2018] [Accepted: 09/04/2018] [Indexed: 11/24/2022] Open
Abstract
Ochrobactrum anthropi, a rare human pathogen, has been isolated predominantly from patients with catheter-related bacteraemia and rarely from other infections. In 2016, six cases of pseudo-bacteraemia caused by carbapenem-resistant O. anthropi isolates were recovered from an Argentinian hospital. The resistant phenotype exposed by the isolates caught our attention and led to an extensive epidemiologic investigation. Here we describe the characterization of a carbapenem-resistant O. anthropi outbreak whose probable cause was by contaminated collection tubes. The genome analysis of one strain revealed the presence of various resistant determinants. Among them, a metal-dependent hydrolase of the β-lactamase superfamily I, phnP, was found. Lately the recovery of unusual multidrug-resistant pathogens in the clinical setting has increased, thus emphasizing the need to implement standardized infection control practice and epidemiologic investigation to identify the real cause of hospital outbreaks.
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Affiliation(s)
- S Montaña
- Instituto de Microbiología y Parasitología Médica (IMPaM, UBA-CONICET), Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - J S Fernandez
- Center for Applied Biotechnology Studies, Department of Biological Science, California State University Fullerton, Fullerton, CA, USA
| | - M Barenboim
- Laboratorio de Bacteriologia, Hospital Interzonal de Agudos Eva Perón, San Martín, Provincia de Buenos Aires, Argentina
| | - M Hernandez
- Center for Applied Biotechnology Studies, Department of Biological Science, California State University Fullerton, Fullerton, CA, USA
| | - C Kayriyama
- Laboratorio de Bacteriologia, Hospital Interzonal de Agudos Eva Perón, San Martín, Provincia de Buenos Aires, Argentina
| | - M Carulla
- Laboratorio de Bacteriologia, Hospital Interzonal de Agudos Eva Perón, San Martín, Provincia de Buenos Aires, Argentina
| | - A Iriarte
- Laboratorio de Biología Computacional, Dpto de Desarrollo Biotecnológico, Instituto de Higiene, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - M S Ramirez
- Center for Applied Biotechnology Studies, Department of Biological Science, California State University Fullerton, Fullerton, CA, USA
| | - M Almuzara
- Laboratorio de Bacteriologia, Hospital Interzonal de Agudos Eva Perón, San Martín, Provincia de Buenos Aires, Argentina
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Bedford A, Yu H, Hernandez M, Squires EJ, Leeson S, Gong J. Effects of fatty acid glyceride product SILOhealth 104 on the growth performance and carcass composition of broiler chickens. Poult Sci 2018; 97:1315-1323. [PMID: 29462360 DOI: 10.3382/ps/pex440] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 01/23/2018] [Indexed: 01/04/2023] Open
Abstract
Butyric acid is the primary energy source for colonocytes, and has shown potential as an alternative to in-feed antibiotics, due to its antimicrobial activity and positive effects on production performance traits of broiler chickens. SILOhealth 104 (SILO S.P.A., Florence, Italy) is a commercial product mainly containing mono- and di-glycerides of butyrate with a small portion of propionic, caprylic, capric, and lauric acid mono- and di-glycerides. Its effects on broiler performance and carcass composition have yet to be evaluated. Four-hundred-eighty day-old male Ross 308 birds were divided into different dietary treatment groups with equal starting weights and fed a diet containing 0, 500, 1,000, 2,000, or 3,000 ppm of SILOhealth 104 for 35 days. There were no significant differences in overall average daily gain or feed: gain ratio with the addition of SILOhealth 104 to the diets (P > 0.05). At 5 wk of age, abdominal fat weight was reduced in birds supplemented with SILOhealth 104 in a dose-responsive manner (P < 0.05), while breast muscle weight increased with supplementation, with significant increases in 2,000 ppm and 3,000 ppm birds compared to controls (P < 0.05). A significant reduction in gene expression of both forkhead box protein O4 and myostatin, 2 factors that can inhibit protein synthesis, was found in the breast muscle of all SILOhealth 104 treated birds (P < 0.05). In addition, gene expression in the adipose tissue, including acetyl-CoA carboxylase alpha and lipoprotein lipase, which are associated with lipid metabolism, was significantly decreased and increased, respectively, by the supplementation of SILOhealth 104 (P < 0.05). These data suggest that the components of SILOhealth 104 can positively affect the deposition of muscle, while reducing abdominal fat deposition in broiler chickens.
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Affiliation(s)
- A Bedford
- Guelph Research and Development Center, Agriculture and Agri-food Canada, Guelph, Ontario, Canada N1G 5C9
| | - H Yu
- Guelph Research and Development Center, Agriculture and Agri-food Canada, Guelph, Ontario, Canada N1G 5C9
| | - M Hernandez
- Guelph Research and Development Center, Agriculture and Agri-food Canada, Guelph, Ontario, Canada N1G 5C9
| | - E J Squires
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada N1G 2W1
| | - S Leeson
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada N1G 2W1
| | - J Gong
- Guelph Research and Development Center, Agriculture and Agri-food Canada, Guelph, Ontario, Canada N1G 5C9
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Listyarifah D, Nieminen MT, Mäkinen LK, Haglund C, Grenier D, Häyry V, Nordström D, Hernandez M, Yucel-Lindberg T, Tervahartiala T, Ainola M, Sorsa T, Hagström J. Treponema denticola chymotrypsin-like proteinase is present in early-stage mobile tongue squamous cell carcinoma and related to the clinicopathological features. J Oral Pathol Med 2018; 47:764-772. [PMID: 29747237 DOI: 10.1111/jop.12729] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Certain periodontopathogenic bacteria have been linked to cancers. Treponema denticola (Td) is associated with severe periodontitis. Chymotrypsin-like proteinase (CTLP), a major virulence factor of Td, can degrade various host proteins and peptides, and modulate inflammatory responses. However, the role of Td in the tongue carcinogenesis remains unknown. This study aimed to investigate the presence of Td-CTLP in early-stage mobile tongue squamous cell carcinoma (MTSCC) and its relation to clinical and pathological characteristics. METHODS The immunopositivity of Td-CTLP was assessed in samples obtained from 60 patients with MTSCC and associated with their clinicopathological data. Additionally, Td-CTLP expression was compared with immunoexpression of matrix metalloproteinases (MMP-8 and MMP-9), toll-like receptors (TLR-2, TLR-4, TLR-7 and TLR-9), c-Myc, Ki-67, Bmi-1 and Snail. RESULTS Treponema denticola-chymotrypsin-like proteinase was present in 95% of MTSCC tumours of which many (40.4%) showed high immunopositivity. Td-CTLP positivity was significantly associated with invasion depth, tumour diameter and the expression of TLR-7, TLR-9 and c-Myc. High Td-CTLP immunopositivity in younger patients (≤ 60 years old) predicted early relapse. CONCLUSION Our data indicate that Td and its CTLP are present in early-stage MTSCC carcinoma and may contribute to carcinogenesis, and therefore provide novel perspectives into intervention and therapeutic measures of MTSCC.
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Affiliation(s)
- Dyah Listyarifah
- Department of Medicine, Clinicum, University of Helsinki, and Helsinki University Central Hospital, Helsinki, Finland.,Department of Dental Biomedical Sciences, Faculty of Dentistry, Universitas Gadjah Mada, Yogyakarta, Indonesia.,Department of Oral and Maxillofacial Diseases, Clinicum, University of Helsinki, and Helsinki University Central Hospital, Helsinki, Finland
| | - Mikko T Nieminen
- Department of Oral and Maxillofacial Diseases, Clinicum, University of Helsinki, and Helsinki University Central Hospital, Helsinki, Finland
| | - Laura K Mäkinen
- Department of Otorhinolaryngology and Head and Neck Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Caj Haglund
- Department of Surgery, Helsinki University Hospital, HUS, Helsinki, Finland.,Research Program Unit, Translational Cancer Biology, University of Helsinki, Helsinki, Finland
| | - Daniel Grenier
- Faculté de Médecine Dentaire, Université Laval, Quebec City, QC, Canada
| | - Valtteri Häyry
- Department of Otorhinolaryngology and Head and Neck Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Dan Nordström
- Department of Internal Medicine and Rehabilitation, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - Marcela Hernandez
- Laboratory of Periodontal Biology and Department of Oral Pathology and Medicine, Dentistry Unit, Faculty of Dentistry, Faculty of Health Sciences, Universidad Autónoma de Chile, University of Chile, Santiago, Chile
| | - Tülay Yucel-Lindberg
- Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Taina Tervahartiala
- Department of Oral and Maxillofacial Diseases, Clinicum, University of Helsinki, and Helsinki University Central Hospital, Helsinki, Finland
| | - Mari Ainola
- Department of Medicine, Clinicum, University of Helsinki, and Helsinki University Central Hospital, Helsinki, Finland
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, Clinicum, University of Helsinki, and Helsinki University Central Hospital, Helsinki, Finland.,Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Jaana Hagström
- Research Program Unit, Translational Cancer Biology, University of Helsinki, Helsinki, Finland.,Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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Montaña S, Hernandez M, Fernandez JS, Pennini M, Centrón D, Sucari A, Iriarte A, Ramírez MS. Molecular characterization of KPC-2-positive Klebsiella pneumoniae isolates from a neurosurgical centre in Argentina. New Microbes New Infect 2018; 24:32-34. [PMID: 29922473 PMCID: PMC6004774 DOI: 10.1016/j.nmni.2018.04.002] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 04/10/2018] [Accepted: 04/14/2018] [Indexed: 01/22/2023] Open
Abstract
Carbapenem-resistant Enterobacteriaceae is a growing concern worldwide. Klebsiella pneumoniae is an important nosocomial pathogen with a high capacity for nosocomial spread. We described the occurrence of plasmid-encoded KPC-2-harbouring K. pneumoniae isolates recovered from a neurosurgical centre in Argentina. The blaKPC-2 gene was surrounded by ISkpn6 and ISkpn7.
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Affiliation(s)
- S Montaña
- Instituto de Microbiología y Parasitología Médica (IMPaM, UBA-CONICET), Facultad de Medicina, Universidad de Buenos Aires, Argentina
| | - M Hernandez
- Center for Applied Biotechnology Studies, Department of Biological Science, California State University Fullerton, Fullerton, CA, USA
| | - J S Fernandez
- Center for Applied Biotechnology Studies, Department of Biological Science, California State University Fullerton, Fullerton, CA, USA
| | - M Pennini
- Unidad Microbiología, Stamboulian, Buenos Aires, Argentina
| | - D Centrón
- Instituto de Microbiología y Parasitología Médica (IMPaM, UBA-CONICET), Facultad de Medicina, Universidad de Buenos Aires, Argentina
| | - A Sucari
- Unidad Microbiología, Stamboulian, Buenos Aires, Argentina
| | - A Iriarte
- Laboratorio de Biología Computacional, Departamento de Desarrollo Biotecnológico, Instituto de Higiene, Facultad de Medicina, Universidad de la República, Uruguay
| | - M S Ramírez
- Center for Applied Biotechnology Studies, Department of Biological Science, California State University Fullerton, Fullerton, CA, USA
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Montero A, Hernandez M, Ciervide R, Garcia-Aranda M, Alvarez B, Valero J, Acosta A, Alonso R, Lopez M, Sanchez E, Hernando O, Rubio C. Efficacy of an accelerated hypofractionted schedule for whole breast and regional node irradiation: Short term results of safety and efficacy. Eur J Cancer 2018. [DOI: 10.1016/s0959-8049(18)30393-9] [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: 12/01/2022]
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Bologna-Molina R, Pereira-Prado V, Sánchez-Romero C, Tapia-Repetto G, Soria S, Hernandez M, Gónzalez-Gónzalez R, Molina-Frechero M, Mikami T. Expression of hMLH1 and hMSH2 proteins in ameloblastomas and tooth germs. Med Oral Patol Oral Cir Bucal 2018; 23:e126-e131. [PMID: 29476681 PMCID: PMC5911352 DOI: 10.4317/medoral.22210] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 12/09/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Mismatch repair proteins (MMRPs) are a group of nuclear enzymes that participate in the repair of base mismatches that occur during DNA replication in all proliferating cells. The most studied MMRPs are hMSH2 and hMLH1, which are known to be highly expressed in normal tissues. A loss of MMRPs leads to the accumulation of DNA replication errors in proliferating cells. Ki-67 is a biomarker regarded to be the gold-standard tool for determining cell proliferation by immunohistochemical methods. The aim of this study was to investigate the immunohistochemical expression of hMLH1, hMSH2 and Ki-67 proteins in ameloblastomas and tooth germs, to contribute to the understanding of the development of this odontogenic neoplasm. MATERIAL AND METHODS Immunohistochemical assays to determine the presence of proteins hMSH2, hMLH1 and Ki-67 were performed in 80 ameloblastomas (40 solid and 40 unicystic) and five tooth germs. RESULTS Unicystic ameloblastomas showed higher MMRP expression (hMLH1: 62.5 ± 43.4; hMSH2: 83.3 ± 47.8) than did solid ameloblastomas (hMLH1: 59.4 ± 13.5; hMSH2: 75.8 ± 40.2). Additionally, the cell proliferation index assessed by Ki-67 was inversely proportional to the expression of MMRP. Comparison between tooth germs and ameloblastoma revealed significantly higher expression of hMLH1, hMSH2 and Ki-67 in tooth germs (p=0.02). CONCLUSIONS The differences of MMRP and Ki-67 immunoexpression between ameloblastomas and tooth germ suggest that alterations in the MMRP mechanisms could participate in the biological behavior of ameloblastomas.
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Affiliation(s)
- R Bologna-Molina
- School of Dentistry, Molecular Pathology Area, Universidad de la República, Las Heras 1925, Montevideo, Uruguay,
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Seldeen KL, Halley PG, Volmar CH, Rodríguez MA, Hernandez M, Pang M, Carlsson SK, Suva LJ, Wahlestedt C, Troen BR, Brothers SP. Neuropeptide Y Y2 antagonist treated ovariectomized mice exhibit greater bone mineral density. Neuropeptides 2018; 67:45-55. [PMID: 29129406 PMCID: PMC5805636 DOI: 10.1016/j.npep.2017.11.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 11/06/2017] [Accepted: 11/06/2017] [Indexed: 12/15/2022]
Abstract
Osteoporosis, a disease characterized by progressive bone loss and increased risk of fracture, often results from menopausal loss of estrogen in women. Neuropeptide Y has been shown to negatively regulate bone formation, with amygdala specific deletion of the Y2 receptor resulting in increased bone mass in mice. In this study, ovariectomized (OVX) mice were injected once daily with JNJ-31020028, a brain penetrant Y2 receptor small molecule antagonist to determine the effects on bone formation. Antagonist treated mice had reduced weight and showed increased whole-body bone mineral density compared to vehicle-injected mice. Micro computerized tomography (micro-CT) demonstrated increased vertebral trabecular bone volume, connectivity density and trabecular thickness. Femoral micro-CT analysis revealed increased bone volume within trabecular regions and greater trabecular number, without significant difference in other parameters or within cortical regions. A decrease was seen in serum P1NP, a measure used to confirm positive treatment outcomes in bisphosphonate treated patients. C-terminal telopeptide 1 (CTX-1), a blood biomarker of bone resorption, was decreased in treated animals. The higher bone mineral density observed following Y2 antagonist treatment, as determined by whole-body DEXA scanning, is indicative of either enhanced mineralization or reduced bone loss. Additionally, our findings that ex vivo treatment of bone marrow cells with the Y2 antagonist did not affect osteoblast and osteoclast formation suggests the inhibitor is not affecting these cells directly, and suggests a central role for compound action in this system. Our results support the involvement of Y2R signalling in bone metabolism and give credence to the hypothesis that selective pharmacological manipulation of Y2R may provide anabolic benefits for treating osteoporosis.
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Affiliation(s)
- K L Seldeen
- Division of Geriatrics and Palliative Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA; Research Service, Veterans Affairs Western New York Healthcare System, Buffalo, NY, USA
| | - P G Halley
- Center for Therapeutic Innovation, Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - C H Volmar
- Center for Therapeutic Innovation, Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - M A Rodríguez
- Bruce W. Carter VA Geriatric Research Education and Clinical Center (GRECC), Miami, FL, USA; University of Miami Miller School of Medicine, Miami, FL, USA
| | - M Hernandez
- Bruce W. Carter VA Geriatric Research Education and Clinical Center (GRECC), Miami, FL, USA; University of Miami Miller School of Medicine, Miami, FL, USA
| | - M Pang
- Division of Geriatrics and Palliative Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA; Research Service, Veterans Affairs Western New York Healthcare System, Buffalo, NY, USA
| | - S K Carlsson
- Center for Therapeutic Innovation, Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - L J Suva
- Department of Orthopaedic Surgery, Centre for Orthopaedic Research, University of Arkansas Medical School, Little Rock, AR, USA
| | - C Wahlestedt
- Center for Therapeutic Innovation, Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - B R Troen
- Division of Geriatrics and Palliative Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA; Research Service, Veterans Affairs Western New York Healthcare System, Buffalo, NY, USA
| | - S P Brothers
- Center for Therapeutic Innovation, Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA.
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Affiliation(s)
- M Carballo
- International Centre for Migration and Health, CH-1214 Vernier, Switzerland.
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Dossus L, Rinaldi S, Biessy C, Hernandez M, Lajous M, Monge A, Ortiz-Panozo E, Yunes E, Lopez-Ridaura R, Torres-Mejía G, Romieu I. Circulating leptin and adiponectin, and breast density in premenopausal Mexican women: the Mexican Teachers' Cohort. Cancer Causes Control 2017; 28:939-946. [PMID: 28677026 DOI: 10.1007/s10552-017-0917-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 02/09/2017] [Accepted: 06/21/2017] [Indexed: 01/01/2023]
Abstract
PURPOSE Leptin and adiponectin are produced by the adipose tissue. Mammographic density (MD) is one of the strongest predictors of breast cancer (BC) and is highly influenced by adiposity. How the interplay between MD, obesity, and obesity-related biomarkers influences BC risk, however, is still unknown, especially in premenopausal women, where adiposity seems to be protective for BC. The aim of the present study was to explore the association between circulating leptin, adiponectin, and their ratio, with MD in Mexican premenopausal women who are part of the large Mexican Teachers' Cohort (MTC). METHODS A subsample of 2,084 women from the MTC participated in a clinical evaluation. Of them, 574 premenopausal women were randomly selected, from four MD strata. Serum leptin and adiponectin concentrations were measured by immunoassays. Multivariate regression analyses were performed to compare means of MD by quartiles of adipokines and their ratio. RESULTS High leptin and leptin/adiponectin ratio levels were significantly associated with lower percentage MD and higher absolute and non-absolute dense tissue areas. High adiponectin levels were significantly associated with lower absolute dense and non-dense tissue areas, but not with percentage MD. After adjustment for BMI, only the associations between percentage MD and absolute non-dense tissue area with leptin remained statistically significant. CONCLUSIONS Leptin, adiponectin, and their ratio were associated with MD; however, only the positive association with leptin seemed to be independent from overall obesity.
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Affiliation(s)
- L Dossus
- International Agency for Research on Cancer [IARC], Lyon, France
| | - S Rinaldi
- International Agency for Research on Cancer [IARC], Lyon, France
| | - C Biessy
- International Agency for Research on Cancer [IARC], Lyon, France
| | - M Hernandez
- International Agency for Research on Cancer [IARC], Lyon, France
| | - M Lajous
- Center for Research on Population Health, National Institute of Public Health, 7ª Cerrada Fray Pedro de Gante # 50, Mexico, 14000, Mexico.
- Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA.
| | - A Monge
- Center for Research on Population Health, National Institute of Public Health, 7ª Cerrada Fray Pedro de Gante # 50, Mexico, 14000, Mexico
| | - E Ortiz-Panozo
- Center for Research on Population Health, National Institute of Public Health, 7ª Cerrada Fray Pedro de Gante # 50, Mexico, 14000, Mexico
| | - E Yunes
- Center for Research on Population Health, National Institute of Public Health, 7ª Cerrada Fray Pedro de Gante # 50, Mexico, 14000, Mexico
| | - R Lopez-Ridaura
- Center for Research on Population Health, National Institute of Public Health, 7ª Cerrada Fray Pedro de Gante # 50, Mexico, 14000, Mexico
| | - G Torres-Mejía
- Center for Research on Population Health, National Institute of Public Health, 7ª Cerrada Fray Pedro de Gante # 50, Mexico, 14000, Mexico
| | - I Romieu
- International Agency for Research on Cancer [IARC], Lyon, France
- Center for Research on Population Health, National Institute of Public Health, 7ª Cerrada Fray Pedro de Gante # 50, Mexico, 14000, Mexico
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Adserias-Garriga J, Quijada N, Hernandez M, Rodríguez Lázaro D, Steadman D, Garcia-Gil L. Dynamics of the oral microbiota as a tool to estimate time since death. Mol Oral Microbiol 2017; 32:511-516. [DOI: 10.1111/omi.12191] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/23/2017] [Indexed: 11/26/2022]
Affiliation(s)
| | - N.M. Quijada
- Instituto Tecnológico Agrario de Castilla y León; Universidad de Valladolid; Valladolid Spain
| | - M. Hernandez
- Instituto Tecnológico Agrario de Castilla y León; Universidad de Valladolid; Valladolid Spain
| | | | - D. Steadman
- Forensic Anthropology Center; University of Tennessee; Knoxville TN USA
| | - L.J. Garcia-Gil
- Molecular Microbiology Laboratory; Biology Department; Universitat de Girona; Girona Spain
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Hernandez M, Chaparro G, Motl R. GAIT IMPAIRMENTS DURING SELF-PACED TREADMILL WALKING IN OLDER ADULTS WITH MULTIPLE SCLEROSIS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.3252] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M. Hernandez
- University of Illinois at Urbana-Champaign, Champaign-Urbana, Illinois,
| | - G. Chaparro
- University of Illinois at Urbana-Champaign, Champaign-Urbana, Illinois,
| | - R. Motl
- University of Alabama at Birmingham, Birmingham, Alabama
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Owusu-Agyemang P, Zavala AM, Williams UU, Van Meter A, Soliz J, Kapoor R, Shah A, Hernandez M, Gottumukkala V, Cata JP. Assessing the impact of perioperative blood transfusions on the survival of adults undergoing cytoreductive surgery with hyperthermic intraperitoneal chemotherapy for appendiceal carcinomatosis. Vox Sang 2017; 112:567-577. [DOI: 10.1111/vox.12546] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 05/08/2017] [Accepted: 05/10/2017] [Indexed: 01/02/2023]
Affiliation(s)
- P. Owusu-Agyemang
- Department of Anesthesiology and Perioperative Medicine; The University of Texas MD Anderson Cancer Center; Houston TX USA
- Anesthesiology and Surgical Oncology Research Group; Houston TX USA
| | - A. M. Zavala
- Department of Anesthesiology and Perioperative Medicine; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - U. U. Williams
- Department of Anesthesiology and Perioperative Medicine; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - A. Van Meter
- Department of Anesthesiology and Perioperative Medicine; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - J. Soliz
- Department of Anesthesiology and Perioperative Medicine; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - R. Kapoor
- Department of Anesthesiology and Perioperative Medicine; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - A. Shah
- The University of Texas Medical School; Houston TX USA
| | - M. Hernandez
- Department of Biostatistics; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - V. Gottumukkala
- Department of Anesthesiology and Perioperative Medicine; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - J. P. Cata
- Department of Anesthesiology and Perioperative Medicine; The University of Texas MD Anderson Cancer Center; Houston TX USA
- Anesthesiology and Surgical Oncology Research Group; Houston TX USA
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Hernandez M, Herrera C, Nguyen HT, Zlotnik A. CXCL17 is a stomach-expressed chemokine and plays a role in diet-induced obesity. The Journal of Immunology 2017. [DOI: 10.4049/jimmunol.198.supp.63.6] [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] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
CXCL17 is a mucosal chemokine that attracts dendritic cells and monocytes to specific tissues. CXCL17 is mainly expressed in the respiratory and gastrointestinal tracts and has been shown to have anti-inflammatory effects. Its recently described receptor, GPR35/CXCR8, is a GPCR that has been involved in metabolic functions. Given that macrophages are known to be involved in fat tissue homeostasis, we decided to study a possible role of the CXCL17/CXCR8 axis in obesity. To this end, we used a mouse model of diet-induced obesity to compare Cxcl17−/− mice and wild type (WT) C57BL/6 mice. Mice were fed either a 10% or 60% fat diet for four months. Their development and weight gain as well as several metabolism tests were monitored for two or four months. Plasma and fat tissue samples were used in adipokine assays and to measure levels of obesity-related cytokines and hormones. Gastrointestinal tract tissue, adipose and liver tissues were obtained to perform further RNA or protein assays.
The results indicate that Cxcl17−/− mice fed a 60% fat diet gained significantly more weight than WT mice. We also determined that under homeostatic conditions CXCL17 is highly expressed in the upper gastrointestinal tract (oral cavity, esophagus and stomach) in WT mice. Obese Cxcl17−/− mice also exhibit impaired response to glucose in an insulin tolerance test. Adipokine assay results revealed differences in FGF-21 levels and in other obesity-associated molecules between WT and Cxcl17−/− mice. We conclude that CXCL17 influences development of obesity and systemic metabolic dysfunction. Our results suggest that CXCL17 may be a therapeutic target to treat obesity-related conditions.
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