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Social, Emotional, and Behavioral Functioning in Adolescents with Klinefelter Syndrome.
J Dev Behav Pediatr
January 2025
Department of Psychiatry and Behavioral Sciences, Center for Interdisciplinary Brain Sciences Research, Stanford University, Stanford, CA.
Objective: Klinefelter syndrome (KS) is a common genetic condition in males associated with an extra X chromosome (i.e., 47,XXY).
View Article and Find Full Text PDFFlood-driven survival and growth of dominant C grasses helps set their distributions along tallgrass prairie moisture gradients.
Am J Bot
January 2025
Department of Botany, University of Wisconsin-Madison, Madison, 53706, WI, USA.
Premise: Five C grasses (Bouteloua curtipendula, Schizachyrium scoparium, Andropogon gerardii, Sorghastrum nutans, Spartina pectinata) dominate different portions of a moisture gradient from dry to wet tallgrass prairies in the Upper Midwest of the United States. We hypothesized that their distributions may partly reflect differences in flooding tolerance and context-specific growth relative to each other.
Methods: We tested these ideas with greenhouse flooding and drought experiments, outdoor mesocosm experiments, and a natural experiment involving a month-long flood in two wet-mesic prairies.
Bone Disease Associated with Inactivating Aromatase Mutations and its Management.
Calcif Tissue Int
January 2025
Department of Medicine, Surgery and Neurosciences, University of Siena, Policlinico Santa Maria Alle Scotte, Siena, Italy.
Article Synopsis
- Aromatase deficiency is a rare genetic disorder caused by mutations in the CYP19A1 gene, affecting both males and females, with an incidence of less than 1 in 1,000,000.
- In females, symptoms typically present at birth or in early infancy, focusing on sexual development, while in males, issues usually emerge during or after puberty, leading to delayed diagnosis.
- The paper reviews the skeletal and extraskeletal effects of the condition and discusses strategies for managing bone health in individuals with these mutations.
Insight Into Body Size Evolution in Aves: Based on Some Body Size-Related Genes.
Integr Zool
December 2024
Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan, China.
Article Synopsis
- Birds vary greatly in size, making them key for studying how evolution adapts traits like body size, but the genetic factors involved are still not well understood.
- This study examined 15 genes linked to body size in birds, showing notable adaptive evolution in these genes across different bird lineages, especially highlighting the IGF2BP1 gene's connection to larger body sizes.
- The research uncovered distinct evolutionary patterns and convergent evolution in genes associated with body size, providing new insights into the genetic mechanisms driving size adaptations in birds.
Polygenic Selection and Environmental Influence on Adult Body Height: Genetic and Living Standard Contributions Across Diverse Populations.
Twin Res Hum Genet
December 2024
Independent researchers.
We analyzed whole-genome sequencing (WGS) data from 51 populations and combined WGS and array data from 89 populations. Multiple types of polygenic scores (PGS) were employed, derived from multi-ancestry, between-family genome-wide association study (GWAS; MIX-Height), European-ancestry, between-family GWAS (EUR-Height), and European-ancestry siblings GWAS (SIB-Height). Our findings demonstrate that both genetic and environmental factors significantly influence adult body height between populations.
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