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DHT reduces a cell's ability to promote hair growth, while 3D culture without DHT improves it.

Fine wool sheep have more genes for wool quality, while coarse wool sheep have more for skin and muscle traits.

Male sexual differentiation is regulated independently, while female differentiation occurs in an androgenic environment, affecting conditions like congenital adrenal hyperplasia.

Menopause reduces skin collagen and elasticity, and while estrogen therapy can help, its risks require careful consideration.

Celsr1 is crucial for skin cell alignment, while Celsr2 has little effect on this process.

Some medications can improve skin conditions, while lifestyle factors like smoking and drinking may worsen them; treatments like monoclonal antibodies and imiquimod cream show promise for certain skin diseases.

Fluconazole is effective against animal strains, while Itraconazole works for some human strains, and longer contact with disinfectants like iodine and Virkon S is crucial.

Kir6.1 mutations in Cantú syndrome increase channel sensitivity and hyperpolarization, while SUR2B mutations do not.

High proliferation and cell delamination drive early skin development, while later stages may not rely on cell division orientation.

Allopregnanolone increases KCC2 expression in baby male rats' brains, while finasteride doesn't affect it.

Men with less sun-sensitive skin have lower PSA levels, while men with more sun-sensitive skin have higher PSA levels.

Some congenital hair disorders improve in childhood or with treatments like minoxidil and retinoids, while others like Netherton syndrome and trichothiodystrophy have a poor prognosis.

The conclusion is that grasping how cells determine their roles through evolution is key, with expected progress from new research models and genome editing.

miR-22, a type of microRNA, controls hair growth and its overproduction can cause hair loss, while its absence can speed up hair growth.

Men are more likely to have severe respiratory viral infections like COVID-19 due to hormonal and genetic differences, while women generally have stronger immune responses.

Aging changes skin cells, leading to different DNA methylation and gene activity, affecting cell metabolism and aging signs.

The study identified unique genes in hair follicle cells and their environment, suggesting these genes help organize cells for hair growth.

A new genetic variant in the EEF2K gene may contribute to polycystic ovary syndrome.

miR-144-y and FOXO3 play key roles in skin and feather development in Zhedong White geese.

Melatonin affects gene expression in goat hair follicles, potentially increasing cashmere production.

Variants on chromosome 10 affect hair thickness in Dazu black goats.

A special gene region controls the re-emergence of a primitive wool type in Merino sheep, improving their wool yield and adaptability.

The skin microbiome is crucial for skin health, and more research is needed to explore its role and potential treatments.

Low selenium levels can extend lifespan but worsen health issues.

The study identified key genes involved in goat hair growth.

Platelet lysate is better than fetal bovine serum for growing stem cells and healing wounds.

The transcription factor Meis2 is essential for touch sensation and proper nerve development in touch receptors.

Skin cells and certain hair follicle areas produce hemoglobin, which may help protect against oxidative stress like UV damage.

Keratin gene clusters in humans and marsupials are similarly organized.

Gut bacteria differences could help diagnose and treat alopecia areata.