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https://www.readbyqxmd.com/read/28239217/sibling-relationship-quality-and-mexican-origin-adolescents-and-young-adults-familism-values-and-adjustment
#1
Sarah E Killoren, Sue A Rodríguez De Jesús, Kimberly A Updegraff, Lorey A Wheeler
We examined profiles of sibling relationship qualities in 246 Mexican-origin families living in the United States using latent profile analyses. Three profiles were identified: Positive, Negative and Affect-Intense. Links between profiles and youths' familism values and adjustment were assessed using longitudinal data. Siblings in the Positive profile reported the highest familism values, followed by siblings in the Affect-Intense profile and, finally, siblings in the Negative profile. Older siblings in the Positive and Affect-Intense profiles reported fewer depressive symptoms than siblings in the Negative profile...
March 2017: International Journal of Behavioral Development
https://www.readbyqxmd.com/read/28239210/family-size-and-old-age-wellbeing-effects-of-the-fertility-transition-in-mexico
#2
Carlos Díaz-Venegas, Joseph L Sáenz, Rebeca Wong
The present study aims to determine how family size affects psycho-social, economic and health wellbeing in old age differently across two cohorts with declining fertility. The data are from the 2012 Mexican Health and Ageing Study (MHAS) including respondents aged 50+ (N = 13,102). Poisson (standard and zero-inflated) and logistic regressions are used to model determinants of wellbeing in old age: psycho-social (depressive symptoms), economic (consumer durables and insurance) and health (chronic conditions)...
March 2017: Ageing and Society
https://www.readbyqxmd.com/read/28239181/high-dietary-magnesium-intake-is-significantly-and-independently-associated-with-higher-insulin-sensitivity-in-a-mexican-mestizo-population-a-brief-cross-sectional-report
#3
Carlos Moctezuma-Velázquez, Miguel Ángel Gómez-Sámano, María Belén Cajas-Sánchez, Diana Lorena Reyes-Molina, Mariana Galindo-Guzmán, Clara-Elena Meza-Arana, Daniel Cuevas-Ramos, Francisco Javier Gómez-Pérez, Alfonso Gulias-Herrero
BACKGROUND: Magnesium acts as a cofactor in many intracellular reactions including phosphorylation of the insulin receptor; therefore, its imbalance can potentially cause insulin resistance. Low serum magnesium concentration has been associated with the development of metabolic syndrome and type 2 diabetes mellitus. OBJECTIVE: To study the association between the daily dietary magnesium intake and insulin resistance estimated by the homeostatic model assessment of insulin resistance and homeostatic model assessment 2, as well as insulin sensitivity estimated by the Matsuda index...
January 2017: Revista de Investigación Clínica; Organo del Hospital de Enfermedades de la Nutrición
https://www.readbyqxmd.com/read/28239180/clinical-and-demographic-predictors-of-conversion-to-dementia-in-mexican-elderly-with-mild-cognitive-impairment
#4
Sara G Aguilar-Navarro, Alberto J Mimenza-Alvarado, José Alberto Ávila-Funes, Teresa Juárez-Cedillo, Carolina Bernal-López, Celia G Hernández-Favela
BACKGROUND: Mild cognitive impairment (MCI) is considered a clinical stage between normal cognitive aging and dementia. The clinical course of MCI is heterogeneous, with a significant number of cases progressing to dementia or reverting back to normal. OBJECTIVE: To determine the predictors of conversion from mild cognitive impairment to dementia among Mexican older adults. MATERIALS AND METHODS: A sample of 175 persons underwent clinical and neuropsychological evaluation to establish mild cognitive impairment diagnosis...
January 2017: Revista de Investigación Clínica; Organo del Hospital de Enfermedades de la Nutrición
https://www.readbyqxmd.com/read/28239176/the-role-of-nramp1-slc11a1-gene-variant-d543n-1730g-a-in-the-genetic-susceptibility-to-develop-rheumatoid-arthritis-in-the-mexican-mestizo-population
#5
Perla Niño-Moreno, Edgar Turrubiartes-Martínez, Brenda Oceguera-Maldonado, Nubia Baltazar-Benítez, Cindy Negrete-González, Brenda Oliva-Ramírez, Lourdes Baranda, Roberto González-Amaro
BACKGROUND: Rheumatoid arthritis is a chronic inflammatory disease whose cause has not been fully elucidated. However, genetic factors seem to have an important role in its pathogenesis. OBJECTIVE: We analyzed the possible association between rheumatoid arthritis and variants of the SLC11A1 gene, which encodes for NRAMP1, a protein involved in the activation of phagocytes and synthesis of proinflammatory cytokines. METHODS: In a case-control study in a Mexican Mestizo population, blood samples from 188 patients with rheumatoid arthritis and 133 healthy individuals were obtained to determine the frequency of SLC11A1 gene variants INT4 (469+14G/C or rs3731865), D543N (1730G/A or rs17235409) and 3'UTR (1729+55del4 or rs17235416) by polymerase chain reaction and restriction fragment length polymorphism...
January 2017: Revista de Investigación Clínica; Organo del Hospital de Enfermedades de la Nutrición
https://www.readbyqxmd.com/read/28238904/proteomic-toxicological-and-immunogenic-characterization-of-mexican-west-coast-rattlesnake-crotalus-basiliscus-venom-and-its-immunological-relatedness-with-the-venom-of-central-american-rattlesnake-crotalus-simus
#6
Álvaro Segura, María Herrera, Francisco Reta Mares, Claudia Jaime, Andrés Sánchez, Mariángela Vargas, Mauren Villalta, Aarón Gómez, José María Gutiérrez, Guillermo León
: The venom of the Mexican west-coast rattlesnake (Crotalus basiliscus) was characterized for its protein composition, toxicological profile and immunogenic properties. This venom is composed of 68% Zn(2+)-dependent metalloproteinases (SVMPs), 14% phospholipases A2 (PLA2s), 11% serine proteinases, 4% SVMPs-inhibitor tripeptides (SVMP-ITs), 2% bradykinin-potentiating peptides (BPPs), 0.6% cysteine-rich secretory proteins (CRISPs), and 0.2% l-amino acid oxidases (LAAOs). SVMPs present in the venom are responsible for azocasein hydrolysis and hemorrhagic activity, but their contribution to the lethal activity of the venom in mice is masked by the neurotoxic activity of PLA2s, which in addition are also responsible for myotoxic activity...
February 23, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28238817/the-relationship-between-maternal-responsivity-socioeconomic-status-and-resting-autonomic-nervous-system-functioning-in-mexican-american-children
#7
Megan Johnson, Julianna Deardorff, Elizabeth L Davis, William Martinez, Brenda Eskenazi, Abbey Alkon
Adversity, such as living in poor socioeconomic conditions during early childhood, can become embedded in children's physiology and deleteriously affect their health later in life. On the other hand, maternal responsivity may have adaptive effects on physiology during early childhood development. The current study tested both the additive and interactive effects of socioeconomic status (SES) and maternal responsivity measured at 1year of age on resting autonomic nervous system (ANS) function and trajectory during the first 5years of life...
February 23, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28237665/modeling-the-population-dynamics-and-community-impacts-of-ambystoma-tigrinum-a-case-study-of-phenotype-plasticity
#8
Maeve L McCarthy, Dorothy Wallace, Howard H Whiteman, Evan T Rheingold, Ann M Dunham, Olivia Prosper, Michelle Chen, Eileen Hu-Wang
Phenotypic plasticity is the ability of an organism to change its phenotype in response to changes in the environment. General mathematical descriptions of the phenomenon rely on an abstract measure of "viability" that, in this study, is instantiated in the case of the Tiger Salamander, Ambystoma tigrinum. This organism has a point in its development when, upon maturing, it may take two very different forms. One is a terrestrial salamander (metamorph)that visits ponds to reproduce and eat, while the other is an aquatic form (paedomorph) that remains in the pond to breed and which consumes a variety of prey including its own offspring...
February 22, 2017: Mathematical Biosciences
https://www.readbyqxmd.com/read/28235542/identifying-demographic-and-psychosocial-factors-related-to-the-escalation-of-smoking-behavior-among-mexican-american-adolescents
#9
Sahil S Shete, Anna V Wilkinson
Cigarette smoking is the leading preventable cause of death in the United States; smoking in Mexican American adolescents, a rapidly growing population, remains a major concern. Factors associated with escalation or progression along the smoking trajectory have not been studied in adolescent Mexican Americans. A better understanding of escalation is needed for cancer prevention and overall health. N=1,328 Mexican American adolescents joined a cohort in 2005-06. At baseline participants provided demographic, acculturation and psychosocial data, and reported their smoking status using the Minnesota Smoking Index...
February 21, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28230388/familial-ethnic-socialization-gender-role-attitudes-and-ethnic-identity-development-in-mexican-origin-early-adolescents
#10
Delida Sanchez, Tiffany A Whittaker, Emma Hamilton, Sarah Arango
OBJECTIVES: This study examined the relations between familial ethnic socialization and ethnic identity development in 438 Mexican-origin (n = 242 boys and n = 196 girls) preadolescents. In addition, machismo and marianismo gender role attitudes were examined as potential mediators in this link. METHOD: Confirmatory factor analyses (CFA) of the Familial Ethnic Socialization Scale (FES), Machismo Measure (MM), Marianismo Beliefs Scale (MBS), and the Ethnic Identity Brief Scale (EISB) were conducted to test the factor structure with a preadolescent Mexican-origin sample...
February 23, 2017: Cultural Diversity & Ethnic Minority Psychology
https://www.readbyqxmd.com/read/28230275/the-development-and-correlates-of-gender-role-attitudes-in-african-american-youth
#11
Chun Bun Lam, Christine Stanik, Susan M McHale
This research examined the longitudinal trajectories and family correlates of gender role attitudes in African American youth in a sample of 166 sibling pairs residing with their mothers and fathers. Multilevel modelling revealed that (1) girls and boys exhibited significant declines in gender attitude traditionality from ages 9 to 15 that levelled off through age 18, (2) mothers' (but not fathers') gender role attitude traditionality was positively related to youth's attitude traditionality, and (3) within-person variation in mothers' (but not fathers') racial discrimination experiences was negatively related to within-person variation in youth's gender role attitude traditionality...
February 23, 2017: British Journal of Developmental Psychology
https://www.readbyqxmd.com/read/28229069/an-analysis-of-real-self-perceived-and-desired-bmi-is-there-a-need-for-regular-screening-to-correct-misperceptions-and-motivate-weight-reduction
#12
Jonathan F Easton, Christopher R Stephens, Heriberto Román Sicilia
We study the relationship among real, self-perceived, and desired body mass index (BMI) in 21,288 adults from the Mexican National Health and Nutrition Survey 2012, analyzing the effect of sex and diagnosis of obesity/overweight by a healthcare professional. Self-perceived and desired BMI are analyzed via a figure rating scale question and compared to real BMI. Only 8.8 and 6.1% of the diagnosed and non-diagnosed obese, respectively, correctly identify themselves as such. For the obese, 20.2% of non-diagnosed and 12...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28228947/a-randomized-clinical-trial-of-diabetes-self-management-for-mexican-americans-are-there-serendipitous-health-benefits-for-supporters-of-study-participants
#13
Sharon A Brown, Alexandra A García, Philip R Orlander, Craig L Hanis
OBJECTIVES: Studies of social support in diabetes have focused on the effects of support on the person with type 2 diabetes. We explored diabetes prevention effects of a culturally tailored diabetes self-management intervention in individuals without diabetes who were supporters of intervention participants. METHODS: This is a secondary analysis of data from a randomized clinical trial that involved 256 Mexican Americans with diabetes. Each study participant designated a supporter-spouse, relative, friend-who attended intervention sessions and assisted participants in attaining effective diabetes self-management...
2017: SAGE Open Medicine
https://www.readbyqxmd.com/read/28228683/eutrema-salsugineum-cruciferae-new-to-mexico-a-surprising-generic-record-for-the-flora-of-middle-america
#14
Dmitry A German, Marcus A Koch
The paper reports Eutrema salsugineum as a novelty to the flora of Mexico and Middle America in general. The finding stands ca. 1600 km apart from the closest known locality in the Rocky Mountains of Colorado, USA. The species is considered native to NW Mexico and its late discovery in the region is presumably explained by its tiny habit, early flowering time, and subephemeral life cycle. The phylogenetic position of this Mexican population in a haplotype network based on the chloroplast DNA fragment psbA-trnH confirms this hypothesis and also suggests, in contrast to the previously held viewpoint, multiple colonizations of North American continent from Asia...
2017: PhytoKeys
https://www.readbyqxmd.com/read/28225947/health-workers-cohort-study-methods-and-study-design
#15
Edgar Denova-Gutiérrez, Yvonne N Flores, Katia Gallegos-Carrillo, Paula Ramírez-Palacios, Berenice Rivera-Paredez, Paloma Muñoz-Aguirre, Rafael Velázquez-Cruz, Leticia Torres-Ibarra, Joacim Meneses-León, Pablo Méndez-Hernández, Rubí Hernández-López, Eduardo Salazar-Martínez, Juan O Talavera, Juan Tamayo, Susana Castañón, Ignacio Osuna-Ramírez, Leith León-Maldonado, Mario Flores, Nayeli Macías, Daniela Antúnez, Gerardo Huitrón-Bravo, Jorge Salmerón
Objective: To examine different health outcomes that are associated with specific lifestyle and genetic factors. Materials and methods: From March 2004 to April 2006, a sample of employees from three different health and academic institutions, as well as their family members, were enrolled in the study after providing informed consent. At baseline and follow-up (2010-2013), participants completed a self-administered questionnaire, a physical examination, and provided blood samples...
November 2016: Salud Pública de México
https://www.readbyqxmd.com/read/28225945/-satisfaction-and-perceived-quality-of-people-insured-by-the-social-health-protection-in-mexico-methodological-foundations
#16
Pedro J Saturno-Hernández, Juan Pablo Gutiérrez-Reyes, Waldo Ivan Vieyra-Romero, Martín Romero-Martínez, Gabriel Jaime O'Shea-Cuevas, Javier Lozano-Herrera, Sonia Tavera-Martínez, Mauricio Hernández-Ávila
Objective: To describe the conceptual framework and methods for implementation and analysis of the satisfaction survey of the Mexican System for Social Protection in Health. Materials and methods: We analyze the methodological elements of the 2013, 2014 and 2015 surveys, including the instrument, sampling method and study design, conceptual framework, and characteristics and indicators of the analysis. Results: The survey captures information on perceived quality and satisfaction...
November 2016: Salud Pública de México
https://www.readbyqxmd.com/read/28225939/methodology-for-estimating-dietary-data-from-the-semi-quantitative-food-frequency-questionnaire-of-the-mexican-national-health-and-nutrition-survey-2012
#17
Ivonne Ramírez-Silva, Alejandra Jiménez-Aguilar, Danae Valenzuela-Bravo, Brenda Martinez-Tapia, Sonia Rodríguez-Ramírez, Elsa Berenice Gaona-Pineda, Salomón Angulo-Estrada, Teresa Shamah-Levy
Objective: To describe the methodology used to clean up and estimate dietary intake (DI) data from the Semi-Quantitative Food Frequency Questionnaire (SFFQ) of the Mexican National Health and Nutrition Survey 2012. Materials and methods: DI was collected through a shortterm SFFQ regarding 140 foods (from October 2011 to May 2012). Energy and nutrient intake was calculated according to a nutrient database constructed specifically for the SFFQ. Results: A total of 133 nutrients including energy and fiber were generated from SFFQ data...
November 2016: Salud Pública de México
https://www.readbyqxmd.com/read/28225938/validity-of-a-food-frequency-questionnaire-to-assess-food-intake-in-mexican-adolescent-and-adult-population
#18
Edgar Denova-Gutiérrez, Ivonne Ramírez-Silva, Sonia Rodríguez-Ramírez, Alejandra Jiménez-Aguilar, Teresa Shamah-Levy, Juan A Rivera-Dommarco
Objective: To assess the validity of a 140-item semiquantitative food frequency questionnaire (SFFQ), in Mexican adolescents and adults. Materials and methods: Dietary intakes using a SFFQ and two 24-hour dietary recalls (24DRs), in nonconsecutive days during the same week were measured from 178 adolescents and 230 adults participating in the Mexican National Health and Nutrition Survey-2012.Validity was evaluated using correlation coefficients (CC),deattenuated CC, linear regression models, cross-classification analysis, and the Bland-Altman method...
November 2016: Salud Pública de México
https://www.readbyqxmd.com/read/28225937/relative-validity-of-a-food-frequency-questionnaire-to-identify-dietary-patterns-in-an-adult-mexican-population
#19
Edgar Denova-Gutiérrez, Katherine L Tucker, Jorge Salmerón, Mario Flores, Simón Barquera
Objective: To examine the validity of a semi-quantitative food frequency questionnaire (SFFQ) to identify dietary patterns in an adult Mexican population. Materials and methods: A 140-item SFFQ and two 24-hour dietary recalls (24DRs) were administered. Foods were categorized into 29 food groups used to derive dietary patterns via factor analysis. Pearson and intraclass correlations coefficients between dietary pattern scores identified from the SFFQ and 24DRs were assessed...
November 2016: Salud Pública de México
https://www.readbyqxmd.com/read/28225349/temporal-trends-in-chronic-obstructive-pulmonary-disease-mortality-in-mexico-1999-2014
#20
E Hernández-Garduño, H L Ocaña-Servín
SETTING: Country of Mexico. OBJECTIVE: To determine mortality trends due to chronic obstructive pulmonary disease (COPD) in Mexico between 1999 and 2014. DESIGN: COPD mortality data for persons aged ≥40 years from 1999 to 2014 were obtained from the official website of the Mexican Ministry of Health. Age-standardised mortality rates (ASMRs) were calculated, and joinpoint regression analysis was used to identify trends over time. The annual per cent change (APC) was determined for each trend...
March 1, 2017: International Journal of Tuberculosis and Lung Disease
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