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Yagüe JM, Salguero A, Villegas A, Sánchez-Molina J, Molinero O. The Relative Age Effect in the Two Professional Men's Football Leagues in Spain. J Sports Sci Med 2023; 22:700-706. [PMID: 38045751 PMCID: PMC10690514 DOI: 10.52082/jssm.2023.700] [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: 09/27/2023] [Accepted: 10/26/2023] [Indexed: 12/05/2023]
Abstract
The age difference among individuals of the same group is known as Relative Age. Relative Age Effect refers to the consequences derived from it, such as delayed physical, cognitive and mental development of children born later in the year. The aim of this study was to observe the Relative Age Effect by analyzing players' dates of birth throughout three seasons in the two professional football competitions in Spain based on the game positions and the teams' classification at the end of the season. The sample was made up of players (n=4097) from both professional competitions (nLaLiga Santander=1864), and (nLaLiga Smartbank=2233). The data were collected from two public-access football statistics websites. The cut-off date was established on January 1, the year was divided into four quartiles (Q1: January-March, Q2: April-June, Q3: July-September and Q4: October-December). Results confirmed significant differences on dates of births' distribution (p<0.05) for the competitions - LaLiga Santander and LaLiga Smartbank - during three seasons, as well as for player position, with a larger effect observed for goalkeepers and defenders. Significant difference was also observed depending on classification. Results show a clear decreasing percentage of those born in quartile 4 in relation to those born in quartile 1, it can be concluded that the Relative Age Effect phenomenon is present in the Spanish professional football which may lead to an inappropriate talent selection technique in football, with recruitment oriented to the short term, to immediate results, and possibly caused by the early start of the player selection process.
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Affiliation(s)
- José M Yagüe
- Faculty of Physical Activity and Sports Sciences, Institute of Biomedicine (IBIOMED), University of León - Universidad de León, León, Spain
| | - Alfonso Salguero
- Faculty of Physical Activity and Sports Sciences, Institute of Biomedicine (IBIOMED), University of León - Universidad de León, León, Spain
| | | | | | - Olga Molinero
- Faculty of Physical Activity and Sports Sciences, Institute of Biomedicine (IBIOMED), University of León - Universidad de León, León, Spain
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Murina P, Angel D, Muriano O, Giraudo A, Villegas A, Galletto M, Zunino S. PO-1209 SBRT in Women Over 70 Years Old with Early Breast Cancer. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03173-5] [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: 10/18/2022]
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Senan S, Özgüroğlu M, Daniel D, Villegas A, Vicente D, Murakami S, Hui R, Faivre-Finn C, Paz-Ares L, Wu YL, Mann H, Dennis PA, Antonia SJ. Outcomes with durvalumab after chemoradiotherapy in stage IIIA-N2 non-small-cell lung cancer: an exploratory analysis from the PACIFIC trial. ESMO Open 2022; 7:100410. [PMID: 35247871 PMCID: PMC9058904 DOI: 10.1016/j.esmoop.2022.100410] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 10/08/2021] [Revised: 01/11/2022] [Accepted: 01/22/2022] [Indexed: 12/25/2022] Open
Abstract
Background The phase III PACIFIC trial (NCT02125461) established consolidation durvalumab as standard of care for patients with unresectable, stage III non-small-cell lung cancer (NSCLC) and no disease progression following chemoradiotherapy (CRT). In some cases, patients with stage IIIA-N2 NSCLC are considered operable, but the relative benefit of surgery is unclear. We report a post hoc, exploratory analysis of clinical outcomes in the PACIFIC trial, in patients with or without stage IIIA-N2 NSCLC. Materials and methods Patients with unresectable, stage III NSCLC and no disease progression after ≥2 cycles of platinum-based, concurrent CRT were randomized 2 : 1 to receive durvalumab (10 mg/kg intravenously; once every 2 weeks for up to 12 months) or placebo, 1-42 days after CRT. The primary endpoints were progression-free survival (PFS; assessed by blinded independent central review according to RECIST version 1.1) and overall survival (OS). Treatment effects within subgroups were estimated by hazard ratios (HRs) from unstratified Cox proportional hazards models. Results Of 713 randomized patients, 287 (40%) had stage IIIA-N2 disease. Baseline characteristics were similar between patients with and without stage IIIA-N2 NSCLC. With a median follow-up of 14.5 months (range: 0.2-29.9 months), PFS was improved with durvalumab versus placebo in both patients with [HR = 0.46; 95% confidence interval (CI), 0.33-0.65] and without (HR = 0.62; 95% CI 0.48-0.80) stage IIIA-N2 disease. Similarly, with a median follow-up of 25.2 months (range: 0.2-43.1 months), OS was improved with durvalumab versus placebo in patients with (HR = 0.56; 95% CI 0.39-0.79) or without (HR = 0.78; 95% CI 0.57-1.06) stage IIIA-N2 disease. Durvalumab had a manageable safety profile irrespective of stage IIIA-N2 status. Conclusions Consistent with the intent-to-treat population, treatment benefits with durvalumab were confirmed in patients with stage IIIA-N2, unresectable NSCLC. Prospective studies are needed to determine the optimal treatment approach for patients who are deemed operable. The PACIFIC trial established durvalumab after CRT as standard of care for unresectable, stage III NSCLC. The optimum multimodal treatment strategy for patients with potentially resectable, stage IIIA-N2 NSCLC is unknown. Survival benefit with durvalumab was observed in patients with stage IIIA-N2, unresectable NSCLC in this post hoc analysis. Durvalumab after CRT also exhibited a manageable safety profile in this subpopulation from PACIFIC. Studies of surgical vs. non-surgical strategies are needed to establish the best approach for potentially operable patients.
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Affiliation(s)
- S Senan
- Department of Radiation Oncology, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Cancer Center Amsterdam, Amsterdam, The Netherlands.
| | - M Özgüroğlu
- Istanbul University-Cerrahpaşa, Cerrahpaşa School of Medicine, Istanbul, Turkey
| | - D Daniel
- Tennessee Oncology, Chattanooga, USA; Sarah Cannon Research Institute, Nashville, USA
| | - A Villegas
- Cancer Specialists of North Florida, Jacksonville, USA
| | - D Vicente
- Hospital Universitario Virgen Macarena, Seville, Spain
| | | | - R Hui
- Westmead Hospital and the University of Sydney, Sydney, Australia
| | - C Faivre-Finn
- The University of Manchester and The Christie NHS Foundation Trust, Manchester, UK
| | - L Paz-Ares
- Universidad Complutense, CiberOnc, CNIO and Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Y L Wu
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - H Mann
- AstraZeneca, Cambridge, UK
| | | | - S J Antonia
- H. Lee Moffitt Cancer Center and Research Institute, Tampa, USA
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Restrepo J, Torres-Canchala L, Bonventre J, Rengifo M, Arias J, Ferguson M, Villegas A, Ramírez O, Filler G. POS-083 Urinary KIM-1 is Inversely Associated with Gestational Age among 5-year-old Children Born Prematurely. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.090] [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: 11/24/2022] Open
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Meléndez-Zamudio M, Bravo-Flores I, Ramírez-Oliva E, Guerra-Contreras A, Álvarez-Guzmán G, Zárraga-Nuñez R, Villegas A, Martínez-Rosales M, Cervantes J. An Approach to the Use of Glycol Alkoxysilane-Polysaccharide Hybrids in the Conservation of Historical Building Stones. Molecules 2021; 26:molecules26040938. [PMID: 33578888 PMCID: PMC7916683 DOI: 10.3390/molecules26040938] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 02/02/2021] [Accepted: 02/05/2021] [Indexed: 11/16/2022] Open
Abstract
Stone consolidants have been widely used to protect historical monuments. Consolidants and hydrophobic formulations based on the use of tetraethoxysilane (TEOS) and alkylalkoxysilanes as precursors have been widely applied, despite their lack of solubility in water and requirement to be applied in organic media. In the search for a “greener” alternative based on silicon that has potential use in this field, the use of tetrakis(2-hydroxyethyl)silane (THEOS) and tris(2-hydroxyethyl)methyl silane (MeTHEOS) as precursors, due their high water solubility and stability, is proposed in this paper. It is already known that THEOS and MeTHEOS possess remarkable compatibility with different natural polysaccharides. The investigated approach uses the water-soluble silanes THEOS–chitosan and MeTHEOS–chitosan as a basis for obtaining hybrid consolidants and hydrophobic formulations for the conservation of siliceous and calcareous stones. In the case of calcareous systems, their incompatibility with alkoxysilanes is known and is expected to be solved by the developed hybrid consolidant. Their application in the conservation of building stones from historical and archeological sites from Guanajuato, México was studied. The evaluation of the consolidant and hydrophobic formulation treatment was mainly conducted by determining the mechanical properties and contact angle measurements with satisfactory results in terms of the performance and compatibility with the studied stones.
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Bravo-Flores I, Meléndez-Zamudio M, Guerra-Contreras A, Ramírez-Oliva E, Álvarez-Guzmán G, Zárraga-Núñez R, Villegas A, Cervantes J. Revisiting the System Silanes-Polysaccharides: The Cases of THEOS-Chitosan and MeTHEOS-Chitosan. Macromol Rapid Commun 2021; 42:e2000612. [PMID: 33458894 DOI: 10.1002/marc.202000612] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/27/2020] [Indexed: 01/14/2023]
Abstract
The glycol alkoxysilanes, tetrakis(2-hydroxyethyl)silane (THEOS), and tris(2-hydroxyethyl)methyl silane (MeTHEOS) are water soluble derivatives of tetraethoxysilane (TEOS) and methyltriethoxysilane (MeTEOS) and precursors of the system silane-chitosan reviewed in this work. The glycol modified alkoxysilanes are obtained by transesterification reaction of TEOS or MeTEOS with ethylene glycol. The reaction evolution is monitored by 29 Si NMR. It is possible to observe the formation of the various species of glycol alkoxysilanes in equilibrium as the reaction proceeds showing that the oligomers formation is favored at longer reaction times with the final product tendency to gel keeping the complete water solubility. The glycol alkoxysilanes are synthesized at moderated reaction conditions, by using the Piers-Rubinsztajn (PR) reaction. Additionally, it is already known that THEOS is compatible with different natural polysaccharides as chitosan and the same behavior has been demonstrated in this work for MeTHEOS. Several reports refer studies regarding the system THEOS-polysaccharides to synthesize hybrid materials. The system THEOS-chitosan is known but the characterization as well as the way silane-chitosan interact has not been studied in detail. In the present report, chemical evidence of the covalent interactions THEOS- and MeTHEOS-chitosan based on NMR studies (13 C and 29 Si) are presented as intended.
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Affiliation(s)
- Ileana Bravo-Flores
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/N, Guanajuato, 36050, México
| | - Miguel Meléndez-Zamudio
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main St. W., Hamilton, ON, L8S 4M, Canada
| | - Antonio Guerra-Contreras
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/N, Guanajuato, 36050, México
| | - Eulalia Ramírez-Oliva
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/N, Guanajuato, 36050, México
| | - Gilberto Álvarez-Guzmán
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/N, Guanajuato, 36050, México
| | - Ramón Zárraga-Núñez
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/N, Guanajuato, 36050, México
| | - Antonio Villegas
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/N, Guanajuato, 36050, México
| | - Jorge Cervantes
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/N, Guanajuato, 36050, México
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Paz-Ares L, Spira A, Raben D, Planchard D, Cho BC, Özgüroğlu M, Daniel D, Villegas A, Vicente D, Hui R, Murakami S, Spigel D, Senan S, Langer CJ, Perez BA, Boothman AM, Broadhurst H, Wadsworth C, Dennis PA, Antonia SJ, Faivre-Finn C. Outcomes with durvalumab by tumour PD-L1 expression in unresectable, stage III non-small-cell lung cancer in the PACIFIC trial. Ann Oncol 2020; 31:798-806. [PMID: 32209338 DOI: 10.1016/j.annonc.2020.03.287] [Citation(s) in RCA: 122] [Impact Index Per Article: 30.5] [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: 03/02/2020] [Accepted: 03/14/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND In the PACIFIC trial, durvalumab significantly improved progression-free and overall survival (PFS/OS) versus placebo, with manageable safety, in unresectable, stage III non-small-cell lung cancer (NSCLC) patients without progression after chemoradiotherapy (CRT). We report exploratory analyses of outcomes by tumour cell (TC) programmed death-ligand 1 (PD-L1) expression. PATIENTS AND METHODS Patients were randomly assigned (2:1) to intravenous durvalumab 10 mg/kg every 2 weeks or placebo ≤12 months, stratified by age, sex, and smoking history, but not PD-L1 status. Where available, pre-CRT samples were tested for PD-L1 expression (immunohistochemistry) and scored at pre-specified (25%) and post hoc (1%) TC cut-offs. Treatment-effect hazard ratios (HRs) were estimated from unstratified Cox proportional hazards models (Kaplan-Meier-estimated medians). RESULTS In total, 713 patients were randomly assigned, 709 of whom received at least 1 dose of study treatment durvalumab (n = 473) or placebo (n = 236). Some 451 (63%) were PD-L1-assessable: 35%, 65%, 67%, 33%, and 32% had TC ≥25%, <25%, ≥1%, <1%, and 1%-24%, respectively. As of 31 January 2019, median follow-up was 33.3 months. Durvalumab improved PFS versus placebo (primary-analysis data cut-off, 13 February 2017) across all subgroups [HR, 95% confidence interval (CI); medians]: TC ≥25% (0.41, 0.26-0.65; 17.8 versus 3.7 months), <25% (0.59, 0.43-0.82; 16.9 versus 6.9 months), ≥1% (0.46, 0.33-0.64; 17.8 versus 5.6 months), <1% (0.73, 0.48-1.11; 10.7 versus 5.6 months), 1%-24% [0.49, 0.30-0.80; not reached (NR) versus 9.0 months], and unknown (0.59, 0.42-0.83; 14.0 versus 6.4 months). Durvalumab improved OS across most subgroups (31 January 2019 data cut-off; HR, 95% CI; medians): TC ≥ 25% (0.50, 0.30-0.83; NR versus 21.1 months), <25% (0.89, 0.63-1.25; 39.7 versus 37.4 months), ≥1% (0.59, 0.41-0.83; NR versus 29.6 months), 1%-24% (0.67, 0.41-1.10; 43.3 versus 30.5 months), and unknown (0.60, 0.43-0.84; 44.2 versus 23.5 months), but not <1% (1.14, 0.71-1.84; 33.1 versus 45.6 months). Safety was similar across subgroups. CONCLUSIONS PFS benefit with durvalumab was observed across all subgroups, and OS benefit across all but TC <1%, for which limitations and wide HR CI preclude robust conclusions.
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Affiliation(s)
- L Paz-Ares
- Hospital Universitario 12 de Octubre, Lung Cancer Unit CNIO-H12o, CiberOnc and Universidad Complutense, Madrid, Spain.
| | - A Spira
- Virginia Health Specialists, Fairfax, USA
| | - D Raben
- Department of Radiation Oncology, University of Colorado Denver, Aurora, USA
| | - D Planchard
- Gustave Roussy, Department of Medical Oncology, Thoracic Unit, Villejuif, France
| | - B C Cho
- Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - M Özgüroğlu
- Istanbul University - Cerrahpaşa, Cerrahpaşa School of Medicine, Istanbul, Turkey
| | - D Daniel
- Tennessee Oncology, Chattanooga and Sarah Cannon Research Institute, Nashville, USA
| | - A Villegas
- Cancer Specialists of North Florida, Jacksonville, USA
| | - D Vicente
- Department of Clinical Oncology, H.U.V. Macarena, Seville, Spain
| | - R Hui
- Westmead Hospital and University of Sydney, Sydney, Australia
| | | | - D Spigel
- Tennessee Oncology, Chattanooga and Sarah Cannon Research Institute, Nashville, USA
| | - S Senan
- Department of Radiation Oncology, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Cancer Center Amsterdam, Amsterdam, The Netherlands
| | - C J Langer
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, USA
| | - B A Perez
- H. Lee Moffitt Cancer Center and Research Institute, Tampa, USA
| | | | | | | | | | - S J Antonia
- H. Lee Moffitt Cancer Center and Research Institute, Tampa, USA
| | - C Faivre-Finn
- The University of Manchester and The Christie NHS Foundation Trust, Manchester, UK
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Wu YL, Gray J, Villegas A, Daniel D, Vicente D, Murakami S, Hui R, Kurata T, Chiappori A, Lee K, Cho B, Planchard D, Paz-Ares L, Faivre-Finn C, Vansteenkiste J, Spigel D, Taboada M, Dennis P, Özgüroğlu M, Antonia S. Three-year overall survival update from the PACIFIC trial. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz438.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Melendez-Zamudio M, Guerra-Contreras A, Villegas A, Cervantes J. Aggregation Induced Emission (AIE) Effect Based on Fluorescent Amino–Siloxane Copolymers. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01344-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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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Vansteenkiste J, Naidoo J, Faivre-Finn C, Özgüroğlu M, Villegas A, Daniel D, Murakami S, Hui R, Lee K, Cho B, Kubota K, Taboada M, Wadsworth C, Dennis P, Antonia S. Efficacy of durvalumab in patients with stage III NSCLC who experience pneumonitis (PACIFIC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz259.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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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Raben D, Faivre-Finn C, Spigel D, Daniel D, Villegas A, Vincente D, Hui R, de Castro Carpeno J, Murakami S, Paz-Ares L, Özgüroğlu M, Kurata T, Chiappori A, Lee K, de Wit M, Poole L, Wadsworth C, Dennis P, Antonia S. PACIFIC: Overall Survival with Durvalumab versus Placebo after Chemoradiotherapy in Stage III NSCLC. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.08.057] [Citation(s) in RCA: 2] [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: 11/25/2022]
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Vallejo-Montesinos J, Villegas A, Cervantes J, Pérez E, Goicochea AG. Study of Polymer-Solvent Interactions of Complex Polysiloxanes Using Dissipative Particle Dynamics. J MACROMOL SCI B 2018. [DOI: 10.1080/00222348.2018.1503336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
| | - Antonio Villegas
- División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, Mexico
| | - Jorge Cervantes
- División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, Mexico
| | - Elías Pérez
- Instituto de Física, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - Armando Gama Goicochea
- División de Ingeniería Química y Bioquímica, Tecnológico de Estudios Superiores de Ecatepec, Ecatepec, Mexico
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Spigel D, Vansteenkiste J, Reck M, Wakelee H, Özgüroğlu M, Daniel D, Villegas A, Vicente D, Hui R, Murakami S, Paz-Ares L, Poole L, Wadsworth C, Dennis P, Antonia S. P1.16-05 Effect of Induction Chemotherapy in the PACIFIC Study. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.974] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Faivre-Finn C, Spigel D, Senan S, Langer C, Raben D, Perez B, Özgüroğlu M, Daniel D, Villegas A, Vicente D, Hui R, Murakami S, Paz-Ares L, Poole L, Wadsworth C, Dennis P, Antonia S. Efficacy and safety evaluation based on time from completion of radiotherapy to randomization with durvalumab or placebo in pts from PACIFIC. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy291] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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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Antonia S, Villegas A, Daniel D, Vicente D, Murakami S, Hui R, Kurata T, Chiappori A, Lee K, De Wit M, Cho B, Bourhaba M, Quantin X, Tokito T, Mekhail T, Planchard D, Kim Y, Karapetis C, Hiret S, Ostoros G, Kubota K, Gray J, Paz-Ares L, De Castro Carpeño J, Faivre-Finn C, Reck M, Vansteenkiste J, Spigel D, Wadsworth C, Taboada M, Dennis P, Özgüroğlu M. PL02.01 Overall Survival with Durvalumab Versus Placebo After Chemoradiotherapy in Stage III NSCLC: Updated Results from PACIFIC. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Socinski M, Özgüroğlu M, Villegas A, Daniel D, Vicente D, Murakami S, Hui R, Gray J, Park K, Vincent M, Perrone F, Poole L, Wadsworth C, Dennis P, Antonia S. P1.16-04 Outcomes of Patients <70 or ≥70 Years of Age in PACIFIC. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.973] [Citation(s) in RCA: 2] [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: 01/02/2023]
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Hui R, Özgüroğlu M, Villegas A, Daniel D, Vicente D, Murakami S, Rydén A, Zhang Y, Dennis P, Antonia S. 233O Time to deterioration of symptoms with durvalumab in stage III, locally advanced, unresectable NSCLC: Post-hoc analysis of PACIFIC patient-reported outcomes. J Thorac Oncol 2018. [DOI: 10.1016/s1556-0864(18)30401-5] [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: 11/26/2022]
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Antonia S, Villegas A, Daniel D, Baz DV, Murakami S, Hui R, Yokoi T, Chiappori A, Lee K, de Wit M, Cho B, Bourhaba M, Quantin X, Tokito T, Mekhail T, Planchard D, Jiang H, Huang Y, Dennis P, Özgüroğlu M. PACIFIC: A Double-Blind, Placebo-Controlled Phase 3 Study of Durvalumab as Consolidation Therapy After Chemoradiation in Patients with Locally Advanced, Unresectable Non–Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.09.011] [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: 10/18/2022]
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Murakami S, Özgüroğlu M, Villegas A, Daniel D, Baz D, Hui R, Yokoi T, Chiappori A, Lee K, de Wit M, Cho B, Bourhaba M, Quantin X, Tokito T, Mekhail T, Planchard D, Jiang H, Huang Y, Dennis P, Antonia S. PACIFIC: A double-blind, placebo-controlled Phase III study of durvalumab as consolidation therapy after chemoradiation in patients with locally advanced, unresectable NSCLC. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx670] [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: 11/12/2022] Open
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Paz-Ares L, Villegas A, Daniel D, Baz D, Murakami S, Hui R, Yokoi T, Chiappori A, Lee K, de Wit M, Cho B, Bourhaba M, Quantin X, Tokito T, Mekhail T, Planchard D, Jiang H, Huang Y, Dennis P, Özgüroğlu M. PACIFIC: A double-blind, placebo-controlled phase III study of durvalumab after chemoradiation therapy (CRT) in patients with stage III, locally advanced, unresectable NSCLC. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx440.049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Villegas A, Mendoza GD, Arcos-García JL, Reynoso VH. Nesting of Morelet’s crocodile, Crocodylus moreletii (Dumeril and Bibron), in Los Tuxtlas, Mexico. BRAZ J BIOL 2017; 77:724-730. [DOI: 10.1590/1519-6984.19015] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 06/16/2016] [Indexed: 11/21/2022] Open
Abstract
Abstract We evaluated the nesting by Crocodylus moreletii in Lago de Catemaco, Veracruz, southeastern, Mexico. During the nesting and hatching seasons, we searched for nests along the northern margins of the lake and small associated streams. We investigated egg mortality by weekly monitoring each of the nests found, recording sign of predation (tracks and holes dug into the nest) and the effect of water level fluctuations. We not found differences to nest between inland or flooded zones. However, we found that egg size varied among nests. In nests built inland, predation was the major cause of egg mortality whereas flooding resulted in more deaths of eggs in the flooding zone. Flooding killed 25% of eggs monitored in this study. We suggest that to increase nest success in the Morelet’s crocodile it is necessary to promote conservation of nesting areas around the lake, recently occupied by urban or tourist developments.
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Affiliation(s)
- A. Villegas
- Universidad Autónoma Metropolitana, México; Universidad Nacional Autónoma de México, México; Universidad Nacional Autónoma de México, México
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Meléndez-Zamudio M, Villegas A, González-Calderón JA, Meléndrez R, Meléndez-Lira M, Cervantes J. Study of a Polydimethylsiloxane (PDMS) Elastomer Generated by γ Irradiation: Correlation Between Properties (Thermal and Mechanical) and Structure (Crosslink Density Value). J Inorg Organomet Polym Mater 2017. [DOI: 10.1007/s10904-017-0503-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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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Vélez JI, Lopera F, Sepulveda-Falla D, Patel HR, Johar AS, Chuah A, Tobón C, Rivera D, Villegas A, Cai Y, Peng K, Arkell R, Castellanos FX, Andrews SJ, Silva Lara MF, Creagh PK, Easteal S, de Leon J, Wong ML, Licinio J, Mastronardi CA, Arcos-Burgos M. APOE*E2 allele delays age of onset in PSEN1 E280A Alzheimer's disease. Mol Psychiatry 2016; 21:916-24. [PMID: 26619808 PMCID: PMC5414071 DOI: 10.1038/mp.2015.177] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 10/07/2015] [Accepted: 10/14/2015] [Indexed: 01/10/2023]
Abstract
Alzheimer's disease (AD) age of onset (ADAOO) varies greatly between individuals, with unique causal mutations suggesting the role of modifying genetic and environmental interactions. We analyzed ~50 000 common and rare functional genomic variants from 71 individuals of the 'Paisa' pedigree, the world's largest pedigree segregating a severe form of early-onset AD, who were affected carriers of the fully penetrant E280A mutation in the presenilin-1 (PSEN1) gene. Affected carriers with ages at the extremes of the ADAOO distribution (30s-70s age range), and linear mixed-effects models were used to build single-locus regression models outlining the ADAOO. We identified the rs7412 (APOE*E2 allele) as a whole exome-wide ADAOO modifier that delays ADAOO by ~12 years (β=11.74, 95% confidence interval (CI): 8.07-15.41, P=6.31 × 10(-8), PFDR=2.48 × 10(-3)). Subsequently, to evaluate comprehensively the APOE (apolipoprotein E) haplotype variants (E1/E2/E3/E4), the markers rs7412 and rs429358 were genotyped in 93 AD affected carriers of the E280A mutation. We found that the APOE*E2 allele, and not APOE*E4, modifies ADAOO in carriers of the E280A mutation (β=8.24, 95% CI: 4.45-12.01, P=3.84 × 10(-5)). Exploratory linear mixed-effects multilocus analysis suggested that other functional variants harbored in genes involved in cell proliferation, protein degradation, apoptotic and immune dysregulation processes (i.e., GPR20, TRIM22, FCRL5, AOAH, PINLYP, IFI16, RC3H1 and DFNA5) might interact with the APOE*E2 allele. Interestingly, suggestive evidence as an ADAOO modifier was found for one of these variants (GPR20) in a set of patients with sporadic AD from the Paisa genetic isolate. This is the first study demonstrating that the APOE*E2 allele modifies the natural history of AD typified by the age of onset in E280A mutation carriers. To the best of our knowledge, this is the largest analyzed sample of patients with a unique mutation sharing uniform environment. Formal replication of our results in other populations and in other forms of AD will be crucial for prediction, follow-up and presumably developing new therapeutic strategies for patients either at risk or affected by AD.
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Affiliation(s)
- J I Vélez
- Genomics and Predictive Medicine Group, Department of Genome Sciences, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia.,Neuroscience Research Group, University of Antioquia, Medellín, Colombia
| | - F Lopera
- Neuroscience Research Group, University of Antioquia, Medellín, Colombia
| | - D Sepulveda-Falla
- Neuroscience Research Group, University of Antioquia, Medellín, Colombia.,Institute of Neuropathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - H R Patel
- Genomics and Predictive Medicine Group, Department of Genome Sciences, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - A S Johar
- Genomics and Predictive Medicine Group, Department of Genome Sciences, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - A Chuah
- Genome Discovery Unit, Department of Genome Sciences, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - C Tobón
- Neuroscience Research Group, University of Antioquia, Medellín, Colombia
| | - D Rivera
- Neuroscience Research Group, University of Antioquia, Medellín, Colombia
| | - A Villegas
- Neuroscience Research Group, University of Antioquia, Medellín, Colombia
| | - Y Cai
- Genomics and Predictive Medicine Group, Department of Genome Sciences, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - K Peng
- Biomolecular Resource Facility, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - R Arkell
- Early Mammalian Development Laboratory, Research School of Biology, The Australian National University, Canberra, ACT, Australia
| | - F X Castellanos
- NYU Child Study Center, NYU Langone Medical Center, New York, NY, USA.,Nathan Kline Institute for Psychiatric Research, Orangeburg, NY, USA
| | - S J Andrews
- Genome Diversity and Health Group, Department of Genome Sciences, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - M F Silva Lara
- Genomics and Predictive Medicine Group, Department of Genome Sciences, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - P K Creagh
- Genomics and Predictive Medicine Group, Department of Genome Sciences, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - S Easteal
- Genome Diversity and Health Group, Department of Genome Sciences, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - J de Leon
- Mental Health Research Center at Eastern State Hospital, University of Kentucky, Lexington, KY, USA
| | - M L Wong
- South Australian Health and Medical Research Institute and Department of Psychiatry, School of Medicine, Flinders University, Adelaide, SA, Australia
| | - J Licinio
- South Australian Health and Medical Research Institute and Department of Psychiatry, School of Medicine, Flinders University, Adelaide, SA, Australia
| | - C A Mastronardi
- Genomics and Predictive Medicine Group, Department of Genome Sciences, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia.,South Australian Health and Medical Research Institute and Department of Psychiatry, School of Medicine, Flinders University, Adelaide, SA, Australia
| | - M Arcos-Burgos
- Genomics and Predictive Medicine Group, Department of Genome Sciences, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia.,Neuroscience Research Group, University of Antioquia, Medellín, Colombia
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Del Orbe Barreto R, Arrizabalaga B, De la Hoz Rastrollo AB, García-Orad A, Gonzalez Vallejo I, Bento C, Villegas A, García-Ruiz JC. Hereditary xerocytosis, a misleading anemia. Ann Hematol 2016; 95:1545-6. [DOI: 10.1007/s00277-016-2716-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 05/28/2016] [Indexed: 11/30/2022]
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Sierra S, Villegas A, Arias W. Evaluation of microchimerisms in neurodegenerative disorders. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.869] [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: 11/26/2022]
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Coats W, Pedigo K, Noble G, Glispin C, Agha A, Bazaldua A, Aranoff M, Bennett H, Crowling A, Gonzales N, Montoux A, Espinoza A, Almazan S, Allman C, Kaye C, Allman J, Crane B, Villegas A, Broughton B, McDonald R. Modeling of the PTF1‐L/Foxa2 Transcription Factor Complex Controlling Pancreatic Development. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.lb56] [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: 11/11/2022]
Affiliation(s)
- Ward Coats
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - K Pedigo
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - G Noble
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - C Glispin
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - A Agha
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - A Bazaldua
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - M Aranoff
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - H Bennett
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - A Crowling
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - N Gonzales
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - A Montoux
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - A Espinoza
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - S Almazan
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - C Allman
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - C Kaye
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - J Allman
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - B Crane
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - A Villegas
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - B Broughton
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
| | - Ray McDonald
- Molecular BiologyUT Southwestern Medical CenterDallasTXUnited States
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West-Pollak A, Then EP, Podesta C, Hedelt A, Perry ML, Izarnotegui WV, Perez M, Villegas A, Baez NI, Bassa R, Mendez G, Hernandez K, Lim DS, Urena P, Taylor AM. Impact of a novel community-based lifestyle intervention program on type 2 diabetes and cardiovascular risk in a resource-poor setting in the Dominican Republic. Int Health 2014; 6:118-24. [DOI: 10.1093/inthealth/iht039] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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28
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González-Martínez A, Rosado B, Pesini P, García-Belenguer S, Palacio J, Villegas A, Suárez ML, Santamarina G, Sarasa M. Effect of age and severity of cognitive dysfunction on two simple tasks in pet dogs. Vet J 2013; 198:176-81. [PMID: 23988334 DOI: 10.1016/j.tvjl.2013.07.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Revised: 06/18/2013] [Accepted: 07/05/2013] [Indexed: 10/26/2022]
Abstract
Dogs exhibit age-dependent losses in learning and memory as well as a progressive accumulation of neuropathology that parallels that observed in normal human aging and early Alzheimer's disease. These deficits have been extensively studied using a number of standard cognitive tasks in the laboratory; however, appropriate tools for their assessment in veterinary clinics are still lacking. The aim of this study was to evaluate the effect of age and the severity of cognitive dysfunction syndrome (CDS) on two simple tests conducted in a clinical setting. A food searching (FS) task and a problem-solving (PS) task were administered to young (1-4 years, n=9), middle-aged (5-8 years, n=10), cognitively unimpaired aged (≥9 years, n=31), and cognitively impaired aged (≥ 9 years, n=37) dogs. Cognitive status was classified using an owner-based questionnaire, and in the impaired group, dogs were categorized as having either mild or severe CDS. During the FS task, younger dogs (<9 years) were able to locate the food more quickly and with more success than the aged groups (≥9 years). Dogs with severe CDS exhibited poorer performance than those with mild CDS or their healthy counterparts. In the PS task, younger dogs performed better than the aged dogs in obtaining food, but there were no differences related to CDS severity. The FS task might help to better characterize cognitively affected dogs in the clinical setting than the PS task. These and similar tasks require further investigations in the field.
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Affiliation(s)
- A González-Martínez
- Departamento de Ciencias Clínicas Veterinarias, Facultad de Veterinaria de Lugo, Universidad de Santiago de Compostela, 27002 Lugo, Spain
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Font P, Loscertales J, Benavente C, Bermejo A, Callejas M, Garcia-Alonso L, Garcia-Marcilla A, Gil S, Lopez-Rubio M, Martin E, Muñoz C, Ricard P, Soto C, Balsalobre P, Villegas A. Inter-observer variance with the diagnosis of myelodysplastic syndromes (MDS) following the 2008 WHO classification. Ann Hematol 2012; 92:19-24. [DOI: 10.1007/s00277-012-1565-4] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Accepted: 08/21/2012] [Indexed: 10/27/2022]
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30
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Vallejo-Montesinos J, Villegas A, Jacobo-Azuara A, Martínez JM, Ramírez-Oliva E, Romero-Izquierdo A, Cervantes J. Synthetic and natural silica-aluminates as inorganic acidic catalysts in ring opening polymerization of cyclosiloxanes. Appl Organomet Chem 2012. [DOI: 10.1002/aoc.2873] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Antonio Villegas
- Chemistry Department; University of Guanajuato; Guanajuato; Mexico; 36050
| | | | - J. Merced Martínez
- Chemistry Department; University of Guanajuato; Guanajuato; Mexico; 36050
| | | | | | - Jorge Cervantes
- Chemistry Department; University of Guanajuato; Guanajuato; Mexico; 36050
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31
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Rosado B, González-Martínez A, Pesini P, García-Belenguer S, Palacio J, Villegas A, Suárez ML, Santamarina G, Sarasa M. Effect of age and severity of cognitive dysfunction on spontaneous activity in pet dogs - part 1: locomotor and exploratory behaviour. Vet J 2012; 194:189-95. [PMID: 22591786 DOI: 10.1016/j.tvjl.2012.03.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 03/27/2012] [Accepted: 03/28/2012] [Indexed: 10/28/2022]
Abstract
Age-related cognitive dysfunction syndrome (CDS) has been reported in dogs and it is considered a natural model for Alzheimer's disease in humans. Changes in spontaneous activity (including locomotor and exploratory behaviour) and social responsiveness have been related to the age and cognitive status of kennel-reared Beagle dogs. The aim of this study was to assess the influence of age and severity of CDS on locomotor and exploratory behaviour of privately owned dogs. This is the first part of a two-part report on spontaneous activity in pet dogs. An open-field (OF) test and a curiosity test were administered at baseline and 6 months later to young (1-4 years, n=9), middle-aged (5-8 years, n=9), cognitively unimpaired aged (≥ 9 years, n=31), and cognitively impaired aged ( ≥ 9 years, n=36) animals. Classification of cognitive status was carried out using an owner-based observational questionnaire, and in the cognitively impaired group, the dogs were categorised as having either mild or severe cognitive impairment. Dogs were recorded during sessions in the testing room and the video-recordings were subsequently analysed. The severity of CDS (but not age) influenced locomotion and exploratory behaviour so that the more severe the impairment, the higher the locomotor activity and frequency of corner-directed (aimless) behaviours, and the lower the frequency of door-aimed activities. Curiosity directed toward novel stimuli exhibited an age-dependent decline although severely affected animals displayed more sniffing episodes directed towards the objects. OF activity did not change after 6 months. Testing aged pet dogs for spontaneous behaviour might help to better characterise cognitively affected individuals.
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Affiliation(s)
- B Rosado
- Departamento de Patología Animal, Facultad de Veterinaria, Universidad de Zaragoza, 50013 Zaragoza, Spain
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Rosado B, González-Martínez A, Pesini P, García-Belenguer S, Palacio J, Villegas A, Suárez ML, Santamarina G, Sarasa M. Effect of age and severity of cognitive dysfunction on spontaneous activity in pet dogs - part 2: social responsiveness. Vet J 2012; 194:196-201. [PMID: 22578689 DOI: 10.1016/j.tvjl.2012.03.023] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Revised: 03/27/2012] [Accepted: 03/28/2012] [Indexed: 01/24/2023]
Abstract
Changes in social interactions with owners and other dogs are frequently observed in dogs with cognitive dysfunction syndrome (CDS). The aim of this work was to assess the effect of age and severity of CDS on social responsiveness. This is the second part of a 2-part report on spontaneous activity in pet dogs. A human interaction test and a mirror test were administered at baseline and 6 months later to assess social responses to humans and conspecifics, respectively, to four groups of privately-owned dogs: young (n=9), middle-aged (n=9), cognitively unimpaired aged (n=31), and cognitively impaired aged (n=36). The severity of cognitive impairment was considered in the last group and dogs were categorised as having either mild or severe CDS. The influence of the person and the mirror on locomotion and exploratory behaviour was also studied. Dogs were recorded in a testing room and the video recordings were subsequently analysed. Young dogs displayed more interactions involving physical contact with a person. Young and middle-aged dogs showed more vocalisations in response to social isolation. In contrast, aged animals spent more time in front of the mirror. Changes in social responsiveness associated with severe CDS included decreased response to social isolation and human interaction and increased time in front of the mirror, suggesting a deficit in habituation. Testing of spontaneous activity might help to characterise CDS in aged dogs, a condition increasingly diagnosed in veterinary clinics and a potentially useful natural model of Alzheimer's disease in humans.
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Affiliation(s)
- B Rosado
- Departamento de Patología Animal, Facultad de Veterinaria, Universidad de Zaragoza, 50013 Zaragoza, Spain
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Arora P, Garcia-Bailo B, Dastani Z, Brenner D, Villegas A, Malik S, Richards B, El-Sohemy A, Karmali M, Badawi A. P2-15 Genetic polymorphisms of innate immunity-related inflammatory pathways and their association with factors related to type 2 diabetes. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976h.52] [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: 11/03/2022]
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Villegas A, Arrizabalaga B, Fernández-Lago C, Castro M, Mayans JR, González-Porras JR, Duarte RF, Remacha AF, Luño E, Gasquet JA. Darbepoetin alfa for anemia in patients with low or intermediate-1 risk myelodysplastic syndromes and positive predictive factors of response. Curr Med Res Opin 2011; 27:951-60. [PMID: 21381892 DOI: 10.1185/03007995.2011.561834] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Current guidelines support the use of erythropoiesis-stimulating agents for the treatment of anemia associated with low-risk myelodysplastic syndromes (MDS). DESIGN AND METHODS Single-arm, open-label, multi-center, phase 2 trial that evaluated the efficacy and safety of darbepoetin alfa (DA) in patients with low or intermediate-risk MDS, hemoglobin <100 g/L, erythropoietin (EPO) levels <500 IU/L and transfusion requirements <2 units/month over the preceding 2 months. Erythroid response (major [MaR] or minor [MiR]) and fatigue (Functional Assessment of Cancer Therapy-Fatigue [FACT-F]) were evaluated at 8, 16 and 24 weeks. DA was initiated at 300 μg weekly. For patients who did not achieve MaR by 8 weeks, filgrastim 300 μg weekly was added. CLINICAL TRIAL REGISTRATION clinicaltrials.gov identifier: NCT01039350. RESULTS Forty-four patients (72.7% transfusion independent) were included. Median age was 76.0 years (range 41.3-92.4), 54.5% were male, and 90.9% presented ECOG Status (0-1). Eighteen patients received filgrastim. An erythroid response was achieved by 31 of 44 patients (70.5%) at week 8 (47.7% MaR, 22.7% MiR), 31 of 44 patients (70.5%) at week 16 (61.4% MaR, 9.1% MiR), and 32 of 44 patients (72.7%) at week 24 (61.3% MaR, 11.4% MiR). Mean (95% CI) change in FACT-F at week 24 was 3.61 (0.72 to 6.51). Baseline EPO levels <100 IU/L were a predictive factor of response. DA was well tolerated. Four mild (two iron deficiencies, flu syndrome and headache) and one fatal (thromboembolic event) adverse events were considered related to darbepoetin alfa. CONCLUSIONS A fixed dose of 300 μg of darbepoetin alfa weekly (with or without filgrastim) seems to be an effective and safe treatment for anemic patients with low or intermediate-risk MDS, low transfusion burden and EPO levels <500 IU/L. Results may not be extrapolable to unselected MDS patients.
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Affiliation(s)
- A Villegas
- Hematology Department, Hospital Clínico San Carlos Universidad Complutense, Madrid, Spain.
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Rosado B, García-Belenguer S, León M, Chacón G, Villegas A, Palacio J. Effect of fluoxetine on blood concentrations of serotonin, cortisol and dehydroepiandrosterone in canine aggression. J Vet Pharmacol Ther 2010; 34:430-6. [PMID: 21198677 DOI: 10.1111/j.1365-2885.2010.01254.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Canine aggression directed towards people is the most frequent reason for referral to behaviour practices. The serotonergic system and the hypothalamic-pituitary-adrenal (HPA) axis are believed to play an important role in controlling aggression. The selective serotonin reuptake inhibitor fluoxetine is the most commonly used drug in canine aggression. The aim of the present study was to assess the effect of a 30-day-long fluoxetine treatment on the peripheral serotonergic system and the HPA axis in canine aggression. To this end, the concentrations of serum serotonin (5-HT) and plasma cortisol and dehydroepiandrosterone (DHEA) were analysed in a group of aggressive (n = 22) and nonaggressive dogs (n = 9) during pre- (day 0) and posttreatment (day 30) conditions. Treatment caused a significant decrease in 5-HT concentrations (46% in the aggressive group and 32% in the control group). There was a trend towards a rise of DHEA/cortisol ratio values after treatment both in the aggressive and the control group. The determination of blood 5-HT and the DHEA/cortisol ratio could have important clinical applications in the future for deciding which animals might benefit from a given treatment as well as for monitoring the response. Further large-scale studies with this aim should be carried out to obtain sound conclusions.
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Affiliation(s)
- B Rosado
- Departamento de Patología Animal, Facultad de Veterinaria, Universidad de Zaragoza, Spain.
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Torres P, Quintanilla JC, Rozas M, Miranda P, Ibarra R, San Martín MF, Raddatz B, Wolter M, Villegas A, Canobra C, Hausdorf M, Silva R. Endohelminth parasites from salmonids in intensive culture from southern Chile. J Parasitol 2010; 96:669-70. [PMID: 20557217 DOI: 10.1645/ge-2211.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
A total of 228 salmonids (90 Oncorhynchus mykiss, 48 Oncorhynchus kisutch, and 90 Salmo salar) from 8 intensive aquaculture centers in the south of Chile were examined for endohelminths parasites between December 2008 and May 2009. The body cavities of 2 O. mykiss were infected by Diphyllobothrium sp. plerocercoids (prevalence: 6.7%, mean intensity: 1.0, mean abundance: 0.07) from the Lake Tarahuin hatchery on the south of Chiloé Island. Also, tetraphyllidean plerocercoids (prevalence: 3.3%, mean intensity: 1, mean abundance: 0.03) and fourth-stage larvae of Hysterothylacium aduncum (prevalence: 6.7%, mean intensity: 1, mean abundance 0.07) were observed in O. kisutch from a marine hatchery in Chiloé. The occurrences of Diphyllobothrium sp. in a lake and a tetraphyllidean plerocercoid from marine cultured salmonid in Chiloé are reported for first time. No muscular infection by helminths was recorded in the fish examined.
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Affiliation(s)
- P Torres
- Facultad de Medicina, Instituto de Parasitología, Universidad Austral de Chile, Casilla 567, Valdivia, Chile.
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Rosado B, García-Belenguer S, León M, Chacón G, Villegas A, Palacio J. The role of the hypothalamic-pituitary-adrenal axis in canine aggression towards humans. J Vet Behav 2010. [DOI: 10.1016/j.jveb.2009.10.030] [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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Florez JC, Price AL, Campbell D, Riba L, Parra MV, Yu F, Duque C, Saxena R, Gallego N, Tello-Ruiz M, Franco L, Rodríguez-Torres M, Villegas A, Bedoya G, Aguilar-Salinas CA, Tusié-Luna MT, Ruiz-Linares A, Reich D. Strong association of socioeconomic status with genetic ancestry in Latinos: implications for admixture studies of type 2 diabetes. Diabetologia 2009; 52:1528-36. [PMID: 19526211 PMCID: PMC3113605 DOI: 10.1007/s00125-009-1412-x] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [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: 03/23/2009] [Accepted: 05/07/2009] [Indexed: 12/17/2022]
Abstract
AIMS/HYPOTHESIS Type 2 diabetes is more prevalent in US American minority populations of African or Native American descent than it is in European Americans. However, the proportion of this epidemiological difference that can be ascribed to genetic or environmental factors is unknown. To determine whether genetic ancestry is correlated with diabetes risk in Latinos, we estimated the proportion of European ancestry in case-control samples from Mexico and Colombia in whom socioeconomic status had been carefully ascertained. METHODS We genotyped 67 ancestry-informative markers in 499 participants with type 2 diabetes and 197 controls from Medellín (Colombia), as well as in 163 participants with type 2 diabetes and 72 controls from central Mexico. Each participant was assigned a socioeconomic status scale via various measures. RESULTS Although European ancestry was associated with lower diabetes risk in Mexicans (OR [95% CI] 0.06 [0.02-0.21], p = 2.0 x 10(-5)) and Colombians (OR 0.26 [0.08-0.78], p = 0.02), adjustment for socioeconomic status eliminated the association in the Colombian sample (OR 0.64 [0.19-2.12], p = 0.46) and significantly attenuated it in the Mexican sample (OR 0.17 [0.04-0.71], p = 0.02). Adjustment for BMI did not change the results. CONCLUSIONS/INTERPRETATION The proportion of non-European ancestry is associated with both type 2 diabetes and lower socioeconomic status in admixed Latino populations from North and South America. We conclude that ancestry-directed search for genetic markers associated with type 2 diabetes in Latinos may benefit from information involving social factors, as these factors have a quantitatively important effect on type 2 diabetes risk relative to ancestry effects.
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Affiliation(s)
- J. C. Florez
- Department of Medicine, Harvard Medical School, Boston, MA, USA
- Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Diabetes Research Center (Diabetes Unit), Massachusetts General Hospital, Simches Research Building, CPZN 5.250, 185 Cambridge Street, Boston, MA 02114, USA
- Center for Human Genetic Research, Massachusetts General Hospital, Boston, MA, USA
| | - A. L. Price
- Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA
- Department of Biostatistics, Harvard School of Public Health, Boston, MA, USA
| | - D. Campbell
- The Galton Laboratory, Department of Genetics, Evolution and Environment, University College London, Wolfson House, 4 Stephenson Way, London NW1 2HE, UK
| | - L. Riba
- Unidad de Biología Molecular y Medicina Genómica, Instituto de Investigaciones Biomédicas, UNAM / Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga #15, Col. Sección 16, Tlalpan, 14000 Mexico D.F., Mexico
| | - M. V. Parra
- Laboratorio de Genética Molecular, Universidad de Antioquía, Medellín, Colombia
| | - F. Yu
- Department of Medicine, Harvard Medical School, Boston, MA, USA
- Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Human Genome Sequencing Center, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - C. Duque
- Laboratorio de Genética Molecular, Universidad de Antioquía, Medellín, Colombia
| | - R. Saxena
- Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Center for Human Genetic Research, Massachusetts General Hospital, Boston, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - N. Gallego
- Laboratorio de Genética Molecular, Universidad de Antioquía, Medellín, Colombia
| | - M. Tello-Ruiz
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
| | - L. Franco
- Laboratorio de Genética Molecular, Universidad de Antioquía, Medellín, Colombia
| | - M. Rodríguez-Torres
- Unidad de Biología Molecular y Medicina Genómica, Instituto de Investigaciones Biomédicas, UNAM / Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga #15, Col. Sección 16, Tlalpan, 14000 Mexico D.F., Mexico
| | - A. Villegas
- Laboratorio de Genética Molecular, Universidad de Antioquía, Medellín, Colombia
| | - G. Bedoya
- Laboratorio de Genética Molecular, Universidad de Antioquía, Medellín, Colombia
| | - C. A. Aguilar-Salinas
- Departamento de Endocrinología y Metabolismo, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - M. T. Tusié-Luna
- Unidad de Biología Molecular y Medicina Genómica, Instituto de Investigaciones Biomédicas, UNAM / Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga #15, Col. Sección 16, Tlalpan, 14000 Mexico D.F., Mexico
| | - A. Ruiz-Linares
- The Galton Laboratory, Department of Genetics, Evolution and Environment, University College London, Wolfson House, 4 Stephenson Way, London NW1 2HE, UK
- Laboratorio de Genética Molecular, Universidad de Antioquía, Medellín, Colombia
| | - D. Reich
- Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
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González Fernández FA, Villegas A, Ropero P, Carreño MD, Anguita E, Polo M, Pascual A, Henández A. Haemoglobinopathies with high oxygen affinity. Experience of Erythropathology Cooperative Spanish Group. Ann Hematol 2008; 88:235-8. [PMID: 18818920 DOI: 10.1007/s00277-008-0581-x] [Citation(s) in RCA: 21] [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: 10/15/2007] [Accepted: 07/24/2008] [Indexed: 11/28/2022]
Abstract
Haemoglobinopathies are the world's most frequently found monogenic disorders. In the cases with high oxygen affinity, the decrease in the liberation of the oxygen determines a secondary erythrocytosis. In this work, we present 17 unrelated families of Caucasian race and of Spanish origin, with ten variants of haemoglobin or haemoglobinopathies with high oxygen affinity which were diagnosed in our laboratory. Of the ten haemoglobinopathies, in four (the Hb San Diego, the Hb Johnstown, the Hb Malmö and the Hb Columbia-Missouri), the change of amino acid affects zones of the contact alpha(1)beta(2); in two variants (the Hb Strasbourg and the Hb Syracuse), it affects the unions with 2,3-DPG in the central cavity; in the other two (the Hb Badalona and the Hb La Coruña), the cavity of contact with the group haem is affected; in one (Hb Bethesda), it affects the zone of contact alpha(1)beta(1;) and in one (Hb Olympia), the position 20 of the chain in the helix B in the surface of the protein is affected. In all cases, the change of amino acid, though of different form, facilitates that the quaternary structure of the haemoglobin becomes stable in its relaxed configuration so the transfer of oxygen and the P(50) value are decreased. All cases were sent to our laboratory because of shown erythrocytosis. In the majority of them, the diagnosis was done during an analysis of routine or for being relatives of the first ones.
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Potro ED, Martinez R, Krsnik I, Rubio ML, Fernandez AG, Villegas A. MYELOFIBROSIS IN PRIMARY MYELODYSPLASTIC SYNDROMES. Br J Haematol 2008. [DOI: 10.1111/j.1365-2141.1989.00281.x] [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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Villegas A. [New therapeutic perspectives in iron overload]. An Med Interna 2006; 23:511-2. [PMID: 17222064 DOI: 10.4321/s0212-71992006001100001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
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Villegas A. [Hemoglobinopathies in Spanish and emigrant population]. An Med Interna 2006; 23:203-5. [PMID: 16817696 DOI: 10.4321/s0212-71992006000500001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
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Villegas A, Corbacho C, Sánchez-Guzmán J, Corbacho P, Morán R. Hematocrit and blood chemistry values in three genera of captive hornbills. Zoo Biol 2006. [DOI: 10.1002/zoo.20073] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Sánchez-Guzmán JM, Villegas A, Corbacho C, Morán R, Marzal A, Real R. Response of the haematocrit to body condition changes in Northern Bald Ibis Geronticus eremita. Comp Biochem Physiol A Mol Integr Physiol 2004; 139:41-7. [PMID: 15471679 DOI: 10.1016/j.cbpb.2004.06.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2004] [Revised: 06/25/2004] [Accepted: 06/25/2004] [Indexed: 11/16/2022]
Abstract
We study the usefulness of the haematocrit as a predictor of body condition in birds, using a captive population of the endangered species Northern Bald Ibis (Geronticus eremita). This population is 14% of the worldwide captive population, which is far greater than the known free-living population. The haematocrit, body mass and body condition index responded in the same sense to two different nutritional periods, and there was a statistically significant relationship between changes in condition index and haematocrit of individual birds between the two periods. We discuss the relationship of these parameters with subcutaneous fat and muscle mass, and analyse the individuals' nutritional status in each of the periods studied. The conclusion was that the haematocrit is sensitive to variations in body condition since it responds to mass-loss processes corresponding to phases of mobilization of fat reserves, a situation prior to the mobilization of muscle proteins when there is a manifest deterioration of the individual's aspect.
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Affiliation(s)
- J M Sánchez-Guzmán
- Grupo de Investigación en Conservación, Area de Zoología, Universidad de Extremadura, Avenida de Elvas s/n, 06071 Badajoz, Spain.
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Ladero JM, Ropero P, Ortega L, Taxonera C, González FA, López-Alonso G, Briceño O, Rodríguez-Agulló JL, González L, Villegas A, Díaz-Rubio M. [HFE gene mutations, hepatic iron content, and histological severity in hepatitis C virus-induced chronic hepatitis]. Rev Esp Enferm Dig 2003; 95:829-36. [PMID: 14972004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
OBJECTIVE To study whether any relationship exists between the C282Y and H63D mutations of the HFE gene, iron liver content, and the severity of histological damage in patients with hepatitis C virus (HCV)-induced chronic hepatitis. MATERIAL AND METHODS In 72 patients diagnosed with HCV-chronic infection, naïve for antiviral therapy, and undergoing liver biopsy, the Knodell index was established, a morphometric evaluation of hepatic hemosiderin deposits was performed by using a semiautomatic method of image analysis, and mutations of the HFE gene were identified through a polymerase chain reaction on leukocyte genomic DNA by using specific restriction enzymes. The control group for the distribution of HFE genetic variants was composed of 181 healthy individuals with the same ethnic and geographical (white Spaniards) origin. RESULTS (Cases/controls): 1. Genotype distribution: a) mutation C282Y: no homozygotes, 6/23 heterozygotes, 66/158 without the mutation (not significant, n.s.); b) mutation H63D: 2/5 homozygotes, 26/52 heterozygotes, 44/124 without the mutation (n.s.). compound heterozygotes 2/6. 2. Allele frequencies: a) mutation C282Y: 0.042/0.064 (n.s.); b) mutation H63D: 0.208/0.171 (n.s.). Four C282Y heterozygous patients had stainable liver iron (p=0.015 vs patients without mutations). Sixty-six patients were not carriers of the C282Y mutation; among them, 26.9% of 26 carriers and 15% of 40 non-carriers of the H63D mutation had liver stainable iron (n.s.). Knodell index score, gender, age at diagnosis, mode of transmission, and serum and liver iron values were not related to the HFE genotype. CONCLUSIONS our results suggest that the C282Y mutation, but not the H63D mutation, of the HFE gene is frequently associated with stainable iron in the liver in HCV-related chronic hepatitis. The HFE genotype is not related to the histological severity of the disease.
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Affiliation(s)
- J M Ladero
- Servicios de Aparato Digestivo, Hospital Clínico San Carlos, Universidad Complutense, Madrid, Spain.
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Hojas R, Villegas A, Ropero P, Valverde F, Nogales A, González FA, José C, Villar L, García C. Two new mutations in cis on (G)gamma chain of fetal hemoglobin: Hb F-Madrid [G gamma 50(D1)Ser-->Cys] and [G gamma 75(E19)Ile-->Thr]. Ann Hematol 2003; 82:181-3. [PMID: 12634953 DOI: 10.1007/s00277-002-0598-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2002] [Accepted: 11/19/2002] [Indexed: 11/25/2022]
Abstract
We describe a new structural hemoglobin variant of (G)gamma with two amino acid replacements in cis found in the umbilical cord blood of a neonate in Madrid, Spain. The substitutions were identified on exon 2 of the (G)gamma globin gene, at codon 50 (T CT-->T GT) and at codon 75 (A TA-->A CA). We have named it Hb F-Madrid. The father of the propositus was the carrier of the same (G)gamma chain variant and, moreover, molecular study of alpha genes revealed the loss of an alpha gene (-alpha(3.7)/alpha alpha) both in the propositus and his mother.
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Affiliation(s)
- R Hojas
- Servicio de Hematología y Hemoterapia, Hospital Clinico San Carlos, Facultad de Medicina, Universidad Complutense, c/o Prof. Martín Lagos s/n, 28040 Madrid, Spain
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Arboleda-Velasquez JF, Lopera F, Lopez E, Frosch MP, Sepulveda-Falla D, Gutierrez JE, Vargas S, Medina M, Martinez De Arrieta C, Lebo RV, Slaugenhaupt SA, Betensky RA, Villegas A, Arcos-Burgos M, Rivera D, Restrepo JC, Kosik KS. C455R notch3 mutation in a Colombian CADASIL kindred with early onset of stroke. Neurology 2002; 59:277-9. [PMID: 12136071 DOI: 10.1212/wnl.59.2.277] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is caused by mutations in the notch3 epidermal growth factor-like repeats. A Colombian kindred carries a novel C455R mutation located in the predicted ligand-binding domain. Stroke occurred in the patients at an unusually early age (median age: 31 years) in comparison to the more frequent onset in the fourth decade of life in other CADASIL populations, including a second Colombian kindred with an R1031C mutation.
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Affiliation(s)
- J F Arboleda-Velasquez
- Center for Neurological Diseases, Brigham and Women's Hospital-Harvard Medical School, Boston, MA, USA
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Abstract
We determined the values of haematocrit and blood chemistry of the black vulture (Aegypius monachus) in Extremadura (Spain). We analysed 57 nestlings, five feral adults, seven captive individuals in their first year and five captive adults. Free-living adults had a higher haematocrit and lower calcium and alkaline phosphatases concentrations than captive birds. There were differences in haematocrit and in the concentrations of glucose, uric acid, total proteins, alkaline phosphatases, phosphorus and aspartate aminotransferase between nestlings and young in their first year and adults. The estimated age of the nestlings was significantly correlated with haematocrit, plasma glucose and total protein concentrations. The physical condition of nestlings was significantly correlated with plasma alkaline phosphatases levels.
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Affiliation(s)
- A Villegas
- Grupo de Investigación en Conservación, Area de Biología Animal, Universidad de Extremadura, Avda, de Elvas s/n, 06071, Badajoz, Spain.
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