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Sox2 interacts with Atoh1 and Huwe1 Loci to regulate Atoh1 transcription and stability during hair cell differentiation.
PLoS Genet
January 2025
Department of Otolaryngology, Harvard Medical School, Boston, Massachusetts, United States of America.
Stem cell pluripotency gene Sox2 stimulates expression of proneural basic-helix-loop-helix transcription factor Atoh1. Sox2 is necessary for the development of cochlear hair cells and binds to the Atoh1 3' enhancer to stimulate Atoh1 expression. We show here that Sox2 deletion in late embryogenesis results in the formation of extra hair cells, in contrast to the absence of hair cell development obtained after Sox2 knockout early in gestation.
View Article and Find Full Text PDFThe mind, brain, and body study: A protocol for examining the effects of the gut-brain-immune axis on internalizing symptoms in youth exposed to caregiving-related early adversity.
Brain Behav Immun Health
December 2024
Department of Psychology, University of California, Los Angeles, 502 Portola Plaza, Los Angeles, CA, 90095, USA.
Experiences of caregiving-related adversity are common and one of the strongest predictors of internalizing psychopathology (i.e., anxiety and depression).
View Article and Find Full Text PDFEffects of UV-B light exposure during automatic milking on vitamin D levels in Holstein Friesian cows.
Front Vet Sci
January 2025
Clinic for Reproduction and Large Animals-Section for Ruminants, Veterinary Faculty, University of Ljubljana, Ljubljana, Slovenia.
Vitamin D is essential for cattle and can be synthesized in the skin under ultraviolet irradiation. This study investigated the effects of narrow-band UV-B irradiation during automatic milking on blood vitamin D concentration and the influence of hair and black skin areas on cutaneous vitamin D synthesis in Holstein Friesian cows. Fifty-one cows were stratified by milk yield, days after calving, and percentage of black skin, then divided into three groups: shaved and irradiated (80 J/m), unshaved and irradiated (129-305 J/m), and a control group.
View Article and Find Full Text PDFAssociations of fetal and infant growth with pubertal timing.
Arch Dis Child
January 2025
Pediatrics, Erasmus MC, Rotterdam, Netherlands
Objective: Impaired fetal and infant growth may cause alterations in developmental programming of the hypothalamic-pituitary-gonadal axis and subsequently pubertal development. We aimed to assess associations between fetal and infant growth and pubertal development.
Design: Population-based prospective birth cohort.
Fetal fibroblast heterogeneity defines dermal architecture during human embryonic skin development.
J Invest Dermatol
January 2025
Centre for Gene Therapy and Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, UK; Directors' Unit, EMBL, Meyerhofstr. 1, 69117 Heidelberg, Germany. Electronic address: https://twitter.com/fionamarywatt.
To investigate heterogeneity of fibroblasts in human fetal skin, we analysed published single-cell RNA sequencing data (8 and 16 post conception weeks (PCW)) and performed single-molecule fluorescence in situ hybridisation to map their spatial distribution and predicted dynamic interactions. Clustering revealed 8 fibroblast populations with developmental stage-specific abundance changes. Proliferative cells (MKI67+) were present at all stages.
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