Claudia Collà Ruvolo, Lara Franziska Stolzenbach, Luigi Nocera, Marina Deuker, Francesco A Mistretta, Stefano Luzzago, Zhe Tian, Nicola Longo, Markus Graefen, Felix K H Chun, Fred Saad, Alberto Briganti, Ottavio De Cobelli, Vincenzo Mirone, Pierre I Karakiewicz
BACKGROUND: We compared upgrading and upstaging rates in low risk and favorable intermediate risk prostate cancer (CaP) patients according to racial and/or ethnic group: Mexican-Americans and Caucasians. METHODS: Within Surveillance, Epidemiology and End Results database (2010-2015), we identified low risk and favorable intermediate risk CaP patients according to National Comprehensive Cancer Network guidelines. Descriptives and logistic regression models were used...
September 17, 2020: Urologic Oncology
David Agren
No abstract text is available yet for this article.
September 19, 2020: Lancet
Diana Elena Guzmán-Jiménez, Jaime Berumen Campos, Carlos Alberto Venegas-Vega, Mariana Alejandre Sánchez, Ana Luisa Velasco
PURPOSE: The objectives of this study were to determine the inheritance pattern by which familial mesial temporal lobe epilepsy (FMTLE) is segregated in Mexican families, and to identify if there was an association between the clinical characteristics and the inheritance pattern. METHOD: We included a total of 25 families with two or more members affected with MTLE during two years and elaborated a family pedigree for each family. The inheritance pattern was classified as autosomal dominant (AD) or autosomal recessive (AR), considering the affected members...
September 1, 2020: Epilepsy Research
Gabriel Horta-Baas, Rodrigo Vargas-Mena, Erik Alejandre, Ingris Peláez-Ballestas, María Del Socorro Romero-Figueroa, Gloria Queipo
To evaluate the validity, reliability, and responsiveness to change of the 12-item Knee injury and Osteoarthritis Outcome Score (KOOS) Spanish version questionnaire. This study was based on a questionnaire validation design. A cross-sectional survey of 199 patients with knee osteoarthritis (KOA) and ten healthy controls was studied to evaluate the validity and reliability of KOOS-12. One hundred and sixteen patients were assessed for test-retest reliability, and 38 patients were included for a responsiveness assessment...
September 18, 2020: Clinical Rheumatology
Moisés Mercado, Coralys Abreu, Alma Vergara-López, Baldomero González-Virla, Ana-Laura Espinosa-de-Los-Monteros, Ernesto Sosa-Eroza, Diego Cadena-Obando, Daniel Cuevas-Ramos, Lesly A Portocarrero-Ortiz, Sara-Patricia Pérez-Reyes, Abraham Mercado-Cherem, Raúl Ibarra-Salce, Juan O Talavera
CONTEXT: Acromegaly registries constitute a valuable source of therapeutic outcome information in real-life. OBJECTIVE: To analyze surgical and pharmacological outcomes in the Mexican Acromegaly Registry (MAR). DESIGN AND METHODS: Data was extracted from the MAR informatic platform. Surgical remission was defined by a postoperative post-glucose GH < 1 ng/mL and an IGF-1 < 1.2 x ULN. Pharmacological remission was defined by a basal GH < 1 ng/mL and an IGF-1 < 1...
September 18, 2020: Journal of Clinical Endocrinology and Metabolism
Brian Downer, Soham Al Snih, Lin-Na Chou, Yong-Fang Kuo, Mukaila Raji, Kyriakos S Markides, Kenneth J Ottenbacher
BACKGROUND: Evidence from predominantly non-Hispanic White cohorts indicates healthcare utilization increases before Alzheimer's disease and related dementias (ADRD) is diagnosed. We investigated trends in healthcare utilization by Mexican-American Medicare beneficiaries before and after an incident diagnosis of ADRD. METHODS: Data came from the Hispanic Established Populations for the Epidemiologic Study of the Elderly that has been linked with Medicare claims files from 1999-2016 (n=558 matched cases and controls)...
September 18, 2020: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
Lilí Martínez-Domínguez, Fernando Nicolalde-Morejón, Francisco G Lorea-Hernández, Francisco Vergara-Silva, Dennis Wm Stevenson
Ceratozamia is a genus of cycads occurring in eastern Mexico and Central America. In this study, we describe a new species from the Pacific region of Mexico in Guerrero state. This locality represents the most northwestern Mexico distribution for the genus. We focus the comparison of this species with the most geographically proximate and phenotypically relevant lineages for this taxon. We followed an integrative taxonomy approach to evaluate the classification of these species, including geographic location, morphology, DNA barcoding and phenology as primary sources of systematic data...
2020: PhytoKeys
Larissa Betanzos-Robledo, Yanelli Rodríguez-Carmona, Alejandra Contreras-Manzano, Hector Lamadrid-Figueroa, Erica Jansen, Martha María Tellez-Rojo, Wei Perng, Karen Peterson, James R Hébert, Nittin Shivappa, Michael D Wirth, Alejandra Cantoral
Low-grade inflammation is a suggested mechanism in the development of metabolic syndrome (MetS), and diet could act as a regulator. Therefore, we hypothesized that the cumulative Dietary Inflammatory Index (DII®) exposure from diet during infancy through adulthood would be positively associated with the MetS and its components in young Mexican adults. One hundred participants from the Early Life Exposures in Mexico to Environmental Toxicants cohort were included in this analysis. The dietary inflammatory potential of the diet (without supplements) was assessed using 27 nutrients obtained from repeated food frequency questionnaires (1-22 years) using the DII, a validated score...
August 16, 2020: Nutrition Research
Antonio Miranda, David O Garcia, Claudia Sánchez, Cynthia Warren
OBJECTIVE: To investigate perspectives of diabetes, nutrition, and health among underrepresented Mexican-origin males and elucidate on contributing factors of type 2 diabetes disparities. RESEARCH DESIGN: Audio-recorded, semi-structured interviews were conducted with 15 native Spanish-speaking, Mexican-origin males. Men were between the ages of 40 and 64 and at risk for type 2 diabetes-defined as > 40 years of age, BMI > 25, and sedentary over the last 3 months...
September 17, 2020: Journal of Racial and Ethnic Health Disparities
Frederic Flament, Olivier Coubard, Rosa Cruz, Fabian Flores
OBJECTIVE: To evaluate the changes in certain ocular signs due to age, among Mexican women and to compare these with those previously obtained on women of other ethnicities. MATERIAL AND METHODS: Photographs were taken of the faces of 203 Mexican women of different ages, under standardized conditions. These photographs allowed us to focus and define nine ocular signs, which were then graded by 15 experts and dermatologists, using standardized scales provided by a reference Skin Aging Atlas...
September 17, 2020: International Journal of Cosmetic Science
James B Jaggard, Evan Lloyd, Anders Yuiska, Adam Patch, Yaouen Fily, Johanna E Kowalko, Lior Appelbaum, Erik R Duboue, Alex C Keene
Environmental perturbation can drive behavioral evolution and associated changes in brain structure and function. The Mexican fish species, Astyanax mexicanus , includes eyed river-dwelling surface populations and multiple independently evolved populations of blind cavefish. We used whole-brain imaging and neuronal mapping of 684 larval fish to generate neuroanatomical atlases of surface fish and three different cave populations. Analyses of brain region volume and neural circuits associated with cavefish behavior identified evolutionary convergence in hindbrain and hypothalamic expansion, and changes in neurotransmitter systems, including increased numbers of catecholamine and hypocretin/orexin neurons...
September 2020: Science Advances
Irene Casique
CONTEXT: Having one's first sexual intercourse be a positive and satisfying experience may be critical to healthy sexual development. Few studies, however, have examined adolescents' sexual satisfaction and the factors associated with enhancing or diminishing it, especially in Mexico. METHODS: Data from 4,504 heterosexual, sexually experienced 15-20-year-olds living in three Mexican states (Morelos, Jalisco and Puebla) were taken from the 2014 Survey on Dating, Empowerment, and Sexual and Reproductive Health in Adolescent High School Students...
September 10, 2020: International Perspectives on Sexual and Reproductive Health
K Espadas-Pinacho, G López-Guillén, J Gómez-Ruiz, L Cruz-López
The present study analyzed the volatile compounds emitted by Glycine max (cv. FT-Cristalina-RCH) soybean plants: healthy plants and plants damaged mechanically or by the Mexican soybean weevil Rhyssomatus nigerrimus. The SPME method was used to compare the volatile profile of soybean plants in four different conditions. The volatile profile of G. max plants infested by R. nigerrimus was qualitatively and quantitatively different from that of healthy and mechanically damaged plants. Emission of 59 compounds was detected in the four treatments...
September 11, 2020: Brazilian Journal of Biology
Katherine Chacón-Vargas, Julian Torres, Martha Giles-Gómez, Adelfo Escalante, John G Gibbons
Pulque is a culturally important 4,000-year-old traditional Mexican fermented drink. Pulque is produced by adding fresh aguamiel (agave sap) to mature pulque, resulting in a mixture of microbial communities and chemical compositions. We performed shotgun metagenomic sequencing of five stages of pulque fermentation to characterize organismal and functional diversity. We identified 6 genera (Acinetobacter, Lactobacillus, Lactococcus, Leuconostoc, Saccharomyces and Zymomonas) and 10 species (Acinetobacter boissieri, Acinetobacter nectaris, Lactobacillus sanfranciscensis, Lactococcus lactis, Lactococcus piscium, Lactococcus plantarum, Leuconostoc citreum, Leuconostoc gelidum, Zymomonas mobilis and Saccharomyces cerevisiae) that were present ≥ 1% in at least one stage of pulque fermentation...
September 15, 2020: Scientific Reports
Luis Eduardo Del Moral-Trinidad, Tania Romo-González, Yeny Paola Carmona Figueroa, Antonia Barranca Enríquez, Carolina Palmeros Exsome, Yolanda Campos-Uscanga
OBJECTIVE: We aim to determine the anthropometric indicator that is most strongly associated with the percentage of body fat and self-regulation of eating behaviour and physical activity among young university students. METHOD: A cross-sectional study was conducted on 3,869 Mexican university students, of which 53.9% were women. Standard procedures for anthropometry were followed, including weight, height and waist circumference. This data was used for calculating Body Mass Index (BMI), A Body Shape Index, waist-to-height ratio, Body Roundness Index and Conicity index...
September 12, 2020: Enfermería Clínica
Héctor Duarte-Félix, Jorge Zamarripa, Raúl Baños, Manuel de la Cruz-Ortega, Maritza Delgado-Herrada
During physical education classes, one of the contextual factors that can influence motivation is the teacher's interpersonal style. The aim of this study was to analyze the psychometric properties, structure, and factorial invariance across gender of the physical education teachers' Interpersonal Styles Questionnaire of Sonora, Mexico. The participants were 500 students (50.8% boys, 49.2% girls) aged between 9 and 13 years old (mean age ( M age ) = 10.72; standard deviation (SD) = 0.74) from different elementary schools of Sonora, Mexico...
September 11, 2020: International Journal of Environmental Research and Public Health
Michael D Niño, Brittany N Hearne
Objective: Research examining how different dimensions of acculturative beliefs and behaviors influence the risk of biological dysregulation among Latina/os is limited. This study examined associations between three types of acculturation and allostatic load (i.e. a multisystem index of biological dysregulation) across gender and Latina/o ethnic groups. Multiplicative models were also included in order to determine whether immigrant generation moderates acculturation-allostatic load relationships. Design: Data were drawn from the Hispanic Community Health Study/ Study of Latina/os...
September 15, 2020: Ethnicity & Health
Lola Moreano-Arrobo, Oscar D Pérez, Federico D Brown, Fernanda X Oyarz Degrees N, Cristian B Canales-Aguirre
Elysia diomedea varies in adult size and color across its geographical distribution in Ecuador. Because of morphological variation and the absence of genetic information for this species in Ecuador, we analyzed mtDNA sequences in three populations (Ballenita, La Cabuya, and Mompiche) and confirmed that (1) individuals from the three locations belonged to E. diomedea and (2) that there was no population structure that could explain their morphological differences. Next, we analyzed general aspects about the reproductive biology and embryology of this species...
August 26, 2020: International Journal of Developmental Biology
Horacio Merchant-Larios
Contemporary scientific endeavor in Mexico emanates from two greatest public institutions: the Universidad Nacional Autónoma de México (UNAM) and the Instituto Politécnico Nacional (IPN), founded in 1929 and 1936, respectively. Here, the first research Institutes and Centers dedicated to various scientific areas were created. Thus, the origin of most laboratories of Developmental Biology in Mexico was like that of other scientific fields. In this article, I have attempted to describe the establishment of a specialized community involved in the understanding of organism development during ontogeny...
August 25, 2020: International Journal of Developmental Biology
Sonia Marlen Escandón-Rivera, Rachel Mata, Adolfo Andrade-Cetto
Like in many developing countries, in Mexico, the use of medicinal plants is a common practice. Based on our own field experience, there are at least 800 plants used for treating diabetes nowadays. Thus, their investigation is essential. In this context, this work aims to provide a comprehensive and critical review of the molecules isolated from Mexican hypoglycemic plants, including their source and target tested. In the last few years, some researchers have focused on the study of Mexican hypoglycemic plants...
September 10, 2020: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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