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Red deer only have androgen receptors in neck hair cells for mane growth during breeding season.

Melanocytes are crucial for skin pigmentation and can affect conditions like melanoma, vitiligo, and albinism, as well as hair color and hearing.

The Abrus precatorius extract can effectively promote hair growth similar to standard treatments.

Cells from balding scalps have more androgen receptors than cells from non-balding scalps.

Timing of light therapy affects horse coat growth, with photoperiod being crucial.

The document explains how hair is studied in forensics to identify its source and its role in criminal investigations.

Skin cells produce and activate vitamin D, which regulates skin functions and supports hair growth.

Lack or blocking of SRD5a, a key component in hormone creation, can lead to conditions like pseudohermaphrodism and affect hair growth, bone mass, muscle strength, and reproductive health. More research is needed on its regulation from fertilization to adulthood.

Non-coding RNAs help control hair growth in cashmere goats.

Spironolactone effectively reduces hair growth in women with hirsutism and is generally well-tolerated.

Surgical therapies for vitiligo vary in effectiveness, with combination therapy and medical tattooing recommended for better results.

Rosemary's antioxidant content changes with the climate and season.

The cause of atypical Cushing's syndrome in dogs, possibly linked to sex hormones, is not yet proven.

Heavily hunted wolves have higher stress and reproductive hormone levels.

Some nail changes in chilblains can look like lichen planus and may be severe and long-lasting.

Seasonal changes affect gene activity linked to hair growth in Angora goats, influencing mohair quality.

Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.

Melatonin implants can change the seasonal prolactin levels and hair growth in adult cashmere goats but not in juveniles, and don't delay spring moult for better fiber harvesting.

Changing light exposure can affect hair growth timing in goats, possibly due to a key gene, CSDC2.

Hair analysis can't determine ponies' calcium and phosphorus levels; use soil and feed tests instead.

The article concludes that better understanding gene regulation related to seasonal changes can offer insights into the mechanisms of seasonal timing in mammals.

The conclusion is that understanding how feathers and hairs pattern can help in developing hair regeneration treatments.

The authors suggest that scalp hair might protect against COVID-19 and call for more research on scalp health and the virus.

Human skin responds to light with protective mechanisms, but more research is needed to understand these processes and their implications for health and therapy.

Skin fat helps with body temperature control and has other active roles in health.

Field bean supplementation improved mohair growth and kid growth in Angora goats but didn't prevent weight loss after giving birth.

Sugars from Sargassum and brown algae may have health benefits like fighting viruses and helping with wound healing, but there are challenges in using them.

Human hair is unique and important for understanding human evolution and identity.

Poplar seed hairs grow from the placenta at the ovary base, with endoreduplication playing a key role in their development, and share similar cellulose synthesis processes with cotton fibers.

Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.