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Miniaturized hairs stay connected to muscle in alopecia areata, allowing possible regrowth, but not in androgenetic alopecia.

Testosterone may have a dual role in COVID-19, potentially worsening outcomes in men, and testosterone therapy could help some patients, but more research is needed.

The conclusion suggests that PCOS may persist due to genetic traits that, while harmful for female fertility, could have provided survival and reproductive benefits to males.

Amenorrhea, or the absence of periods, should be evaluated by age 15 or within five years of early breast development, and is most commonly caused by conditions like polycystic ovary syndrome and hypothalamic amenorrhea.

New compounds show promise for treating hair loss, enlarged prostate, and prostate cancer, with some being more effective and having different side effects than current treatments.

Patients with myotonic dystrophy often have skin problems that suggest early aging and vitamin D issues, and the severity of these problems is linked to their genetic condition and vitamin D levels.

Advancements in male reproductive medicine are ongoing, but more research and improved treatments are needed in several areas.

Familial factors affect hair loss types in Koreans, with M type in men, L type in women, and paternal factors influencing male hair loss more.

Certain gene mutations are linked to wool quality in sheep and could help in breeding for better wool.

The document concludes that over 500 genes are linked to hair disorders and this knowledge is important for creating new treatments.

A man experienced hair loss from radiotherapy, which can be temporary or permanent depending on radiation dose, with potential treatments available.

Male pattern baldness involves hormone-related hair thinning, shorter hair, and inflammation.

The document concludes that more research is needed to fully understand the causes of PCOS.

Scientists created keratinocyte cell lines from human hair that can differentiate similarly to normal skin cells, offering a new way to study skin biology and diseases.

Platelet-rich plasma may help hair follicle cells grow by affecting certain genes and pathways.

Green tea component EGCG may help prevent hair loss by changing microRNA levels in certain scalp cells.

P-cadherin is important for hair growth and health, and its problems can cause hair and skin disorders.

The X5 Hairlaser might help treat male hair loss, but more research is needed.

Men with more vanadium in their blood and who drink less soy milk are more likely to have hair loss.

Patients with Shwachman-Diamond syndrome often get misdiagnosed due to a wide range of symptoms, including immune system problems and bone abnormalities.

A certain gene variant may increase the risk of polycystic ovary syndrome in Chinese women.

Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.

Some mutant mice have hair with abnormal cross-linking, mainly in the cuticle, not affecting other hair parts.

Nanog gene boosts stem cells, helps hair growth, and may treat hair loss.

Certain variations of the HDAC9 gene can increase or decrease stroke risk in the Chinese population.

Removing myelin protein zero-like 3 in mice leads to better metabolism and resistance to obesity.

The severity of symptoms in nonclassical congenital adrenal hyperplasia is not determined by CYP21A2 gene variations.

The conclusion is that a thorough approach is needed to diagnose and manage hyperandrogenism in teenage girls, recognizing its major psychological and health effects.

Researchers found a gene mutation responsible for a rare hair loss condition.

Hair and skin can regenerate without bulge stem cells due to other compensating cells.