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1.
Menopause ; 31(2): 93-100, 2024 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-38166240

RESUMEN

OBJECTIVE: Surveys of residents in obstetrics and gynecology, internal medicine, and family medicine have demonstrated low levels of knowledge and comfort in treating patients with menopausal symptoms, suggesting a need for improved training during residency. To address this problem, we used a flipped classroom design to deliver a novel menopause curriculum for medical residents. The curriculum included six podcast episodes followed by an interactive case-based classroom session. We then assessed effects of the curriculum on the residents' knowledge and preparedness to manage menopause symptoms. METHODS: We targeted 200 residents (43 obstetrics and gynecology, 86 internal medicine, and 71 family medicine) from six residency programs from 2019 to 2020. Of these, 115 (58%) completed both pre- and postcurriculum assessments, including a 15-item knowledge test and self-ratings of their knowledge, comfort, and preparedness to manage menopause. RESULTS: Following the curriculum, the proportion of correctly answered knowledge questions rose from 60.8% to 79.1% (+18.3%; 95% confidence interval, 15.4-21.2; Cohen's d = 1.2). Improvement did not significantly differ by specialty or year of residency. There were higher gains for residents who listened to the entirety of all six podcast episodes ( b = 11.4, P < 0.001) and who attended the classroom session ( b = 11.6, P = 0.003). Residents' self-ratings of knowledge, comfort, and preparedness also improved following the curriculum across all medical specialties (Cohen's d = 0.47-1.2). Residents rated the podcast format as convenient (73%) and effective (65%) compared with an equivalent amount of reading. CONCLUSIONS: Pairing a podcast with a classroom discussion was found to be an effective combination for improving menopause knowledge.


Asunto(s)
Ginecología , Internado y Residencia , Obstetricia , Femenino , Embarazo , Humanos , Competencia Clínica , Ginecología/educación , Curriculum , Obstetricia/educación , Menopausia
2.
PLoS Genet ; 9(3): e1003372, 2013 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-23555287

RESUMEN

Variation in human skin and eye color is substantial and especially apparent in admixed populations, yet the underlying genetic architecture is poorly understood because most genome-wide studies are based on individuals of European ancestry. We study pigmentary variation in 699 individuals from Cape Verde, where extensive West African/European admixture has given rise to a broad range in trait values and genomic ancestry proportions. We develop and apply a new approach for measuring eye color, and identify two major loci (HERC2[OCA2] P = 2.3 × 10(-62), SLC24A5 P = 9.6 × 10(-9)) that account for both blue versus brown eye color and varying intensities of brown eye color. We identify four major loci (SLC24A5 P = 5.4 × 10(-27), TYR P = 1.1 × 10(-9), APBA2[OCA2] P = 1.5 × 10(-8), SLC45A2 P = 6 × 10(-9)) for skin color that together account for 35% of the total variance, but the genetic component with the largest effect (~44%) is average genomic ancestry. Our results suggest that adjacent cis-acting regulatory loci for OCA2 explain the relationship between skin and eye color, and point to an underlying genetic architecture in which several genes of moderate effect act together with many genes of small effect to explain ~70% of the estimated heritability.


Asunto(s)
Albinismo Oculocutáneo/genética , Población Negra/genética , Color del Ojo/genética , Pigmentación de la Piel/genética , Población Blanca/genética , Cabo Verde , Genotipo , Color del Cabello/genética , Haplotipos , Humanos , Polimorfismo de Nucleótido Simple
3.
Science ; 323(5919): 1339-43, 2009 Mar 06.
Artículo en Inglés | MEDLINE | ID: mdl-19197024

RESUMEN

Morphological diversity within closely related species is an essential aspect of evolution and adaptation. Mutations in the Melanocortin 1 receptor (Mc1r) gene contribute to pigmentary diversity in natural populations of fish, birds, and many mammals. However, melanism in the gray wolf, Canis lupus, is caused by a different melanocortin pathway component, the K locus, that encodes a beta-defensin protein that acts as an alternative ligand for Mc1r. We show that the melanistic K locus mutation in North American wolves derives from past hybridization with domestic dogs, has risen to high frequency in forested habitats, and exhibits a molecular signature of positive selection. The same mutation also causes melanism in the coyote, Canis latrans, and in Italian gray wolves, and hence our results demonstrate how traits selected in domesticated species can influence the morphological diversity of their wild relatives.


Asunto(s)
Evolución Biológica , Ecosistema , Color del Cabello/genética , Mutación , Pigmentación/genética , Lobos/genética , beta-Defensinas/genética , Proteína de Señalización Agouti/genética , Animales , Coyotes/genética , Perros/genética , Flujo Génico , Haplotipos , Desequilibrio de Ligamiento , Melaninas/metabolismo , Datos de Secuencia Molecular , Fenotipo , Filogenia , Polimorfismo de Nucleótido Simple , Receptor de Melanocortina Tipo 1/genética , Selección Genética , Eliminación de Secuencia
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