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Thyroid hormone may speed up wound healing and hair growth, but more research is needed to understand its role in skin repair and use as a treatment.

SCF and ET-1 together significantly increase skin pigmentation and melanin production.

PlncRNA-1 helps hair follicle stem cells grow and develop by controlling a specific cell signaling pathway.

Estrogen increases blood vessel growth factor production, while testosterone blocks this increase.

RNA from horse hair follicles can track circadian rhythms non-invasively.

Increased Toll-like receptors in blood cells may contribute to alopecia areata and could be a target for new treatments.

ILK is essential for skin development, pigmentation, and healing.

The research identified two types of keratinocytes in chicken scales: one for hard scales and another for soft skin, with similarities to human skin differentiation.

TLR2 is important for hair growth and can be targeted to treat hair loss.

Sweat gland development involves two unique skin cell programs and a temporary skin environment.

The Endocrine Society advised against routine testosterone therapy for women, citing a need for more research on long-term safety and a clear definition of androgen deficiency.

Human skin can make serotonin and melatonin.

The timing of when the gene Bmal1 is active affects aging and survival, with its absence during development, not adulthood, leading to premature aging.

Grafted rodent and human cells can regenerate hair follicles, but efficiency decreases with age.

EGF and KGF signalling prevent hair follicle formation and promote skin cell development in mice.

Hidradenitis suppurativa is caused by genetic factors, inflammation, bacteria, hormones, and lifestyle factors like obesity and smoking.

LGR5 helps maintain corneal cell characteristics and prevents unwanted changes by controlling specific cell signaling pathways.

Blue light promotes hair growth by interacting with specific receptors in hair follicles.

Oestrogens help maintain healthy skin, heal wounds, and may protect against skin aging and cancer.

Different scaffold patterns improve wound healing and immune response in mouse skin, with aligned patterns being particularly effective.

Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.

Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.

Skin tumor regression is helped by retinoic acid signaling blocking Wnt signaling.

Certain microRNAs in the fluid around eggs are linked to Polycystic Ovary Syndrome and may help diagnose it.

COVID-19 might affect male fertility, but more research is needed to understand the full impact.

Thyroid hormone affects skin health, with too little causing rough, pale skin and too much leading to smooth, thin skin, and may also impact wound healing and skin conditions.

MicroRNAs play a crucial role in skin and hair health, affecting everything from growth to aging, and could potentially be used in treating skin diseases.

Lizards can regrow their tails, and studying this process helps understand scar-free healing and limb regeneration.

Different species and human skin models vary in their skin enzyme activities, with pig skin and some models closely matching human skin, useful for safety assessments and understanding the skin's protective roles.

Cysteine-rich keratins evolved independently in mammals, reptiles, and birds for hard skin structures like hair, claws, and feathers.