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Epigenetic changes control how adult stem cells work and can lead to diseases like cancer if they go wrong.

Oestrogens are key for bone growth during puberty in both boys and girls.

Zinc is effective for treating various skin conditions, including warts and acne.

Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

Androgens can cause hair growth in some areas and hair loss on the scalp.

Tight junctions are key for skin protection and controlling what gets absorbed or passes through the skin.

TGF-β is crucial for controlling stem cell behavior and changes in its signaling can lead to diseases like cancer.

Liposomes improve drug delivery and reduce skin irritation in dermatology.

The niche environment controls stem cell behavior and plasticity, which is important for tissue health and repair.

The conclusion is that PCOS is caused by ovarian sensitivity to hormones and disrupted hormone control, possibly due to ovarian factors, and more research is needed.

Men generally have more severe COVID-19 cases and higher death rates than women due to biological differences.

Stem cell plasticity is crucial for wound healing but can also contribute to cancer development.

The document concludes that while significant progress has been made in understanding skin biology and stem cells, more research is needed to fully understand their interactions with their environment.

Some drugs can cause skin, nail, and hair problems, which are important for healthcare professionals to recognize and report.

Blocking the Wnt pathway could lead to new treatments for cancer and tissue repair but requires careful development to avoid side effects.

Minoxidil and finasteride can slow hair loss and stimulate regrowth, but won't restore all lost hair or reverse complete baldness.

Liposomes could improve how skin care products work but are costly and not very stable.

Interferon, especially alfa interferon, is an effective treatment for cutaneous T-cell lymphoma with manageable side effects.

Hirsutism is more linked to high androgen levels than acne or hair loss, and a mix of hormonal tests is best for diagnosis; certain treatments can reduce symptoms.

Chemotherapy often causes temporary hair loss, which is distressing and needs better treatment and support.

No treatment fully prevents hair loss from chemotherapy yet.

Women with type 1 diabetes often have polycystic ovary syndrome and excess male hormones, which are frequently undiagnosed.

Eating 500 fewer calories a day and making lifestyle changes can improve PCOS symptoms and reduce diabetes risk; more research is needed on its causes and treatments.

Alopecia areata is likely caused by a combination of genetic factors and immune system dysfunction, and may represent different diseases with various causes.

New hormonal contraceptives are safer, have fewer side effects, and offer health benefits for women.

The document concludes that early diagnosis and treatment of Congenital Adrenal Hyperplasia are crucial for preventing serious health issues and improving patient outcomes.

Feather growth and regeneration involve complex patterns, stem cells, and evolutionary insights.

The document concludes that rapid identification, isolation, and strict infection control are crucial to manage SARS outbreaks.

Hair shedding is an active process that could be targeted to treat hair loss.

Etoposide is effective in treating several cancers, especially small cell lung cancer, with acceptable side effects.