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Thyroid hormones and androgens affect gene expression in frog reproductive organs differently between males and females.

Male yak hair growth is influenced by DHT synthesis, which is promoted by 5α-red1 and AR during growth phases, while E2 may inhibit growth through ERα.

The study identified key genes and pathways that influence goat wool quality and growth.

The research provides insights into hair follicle growth in forest musk deer by identifying key genes and pathways involved.

Cortisol increases a specific protein in bone cells, which may help explain its negative effects on bone.

The research found genes that change during cashmere goat hair growth and could help determine the best time to harvest cashmere.

Steroids, particularly estrogens and 5α-reductase inhibitors, affect blood vessel-related hair growth processes in hair follicle cells.

Changes in testosterone and estrogen receptor genes can affect how men age, influencing body fat, hair patterns, and possibly leading to skin disorders.

Neurosteroids like neuro-estrogen and neuro-androgen are crucial for brain function and can improve cognition and protect against aging-related decline.

The effects of estrogen on human scalp hair growth are unclear and need more research.

Melatonin can increase cashmere yield by altering gene expression and restarting the growth cycle early.

Key genes like KRT27 and IGF-2 are crucial for hair follicle development in Qianhua Mutton Merino sheep.

Men have worse COVID-19 outcomes than women due to genetic and hormonal differences.

Sex hormones may affect COVID-19 severity, with men often faring worse, and targeting related pathways could offer treatment options.

Fadrozole and finasteride change gene expression related to sex hormones and thyroid hormones in frog larvae development.

Dendrobium officinale polysaccharide helps hair regrowth in hair loss mice by affecting local steroid metabolism and hair follicle responses.

Sesamin may help treat hair loss by affecting specific cell pathways.

Hormones significantly affect hair growth and loss, with potential for new treatments.

Fat cells are important for healthy skin, hair growth, and healing, and changes in these cells can affect skin conditions and aging.

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

The document explains hair biology, the causes of hair loss, and reviews various hair loss treatments.

17β-estradiol lowers polyamine oxidase levels in breast cancer cells through estrogen receptor 2.

Researchers found genes linked to hair loss in male giant pandas.

Mandarin duck sail feathers change with seasons due to hormones and genetic regulation.

ROR-alpha may increase the growth of certain breast cancer cells by boosting aromatase, which could affect breast cancer prognosis.

Intersex frogs have different brain gene activity related to sex and thyroid hormones.

Autism's genetics are linked with early age of puberty and less hair loss, but not with hormone levels or polycystic ovary syndrome.

Finasteride affects frog testes by increasing testosterone, decreasing 5α-DHT, and impacting genes related to reproduction and other functions.

Menopause-related hormonal changes affect hair but are not the only cause of hair changes in middle-aged women.

Men and women get COVID-19 at similar rates, but men tend to get sicker and have a higher risk of dying, while women usually have stronger immune responses and vaccine reactions.