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An extract from Quercus acutissima bark was found to reduce sebum production and block an enzyme linked to acne.

Men's hair loss is caused by hormones and genes, and can be treated with medication and surgery, while graying is due to aging and has no prevention except dyeing.

Androgen self-administration might be controlled by membrane receptors, not nuclear ones.

Combination of 0.25% finasteride and 3% minoxidil works better than just 3% minoxidil for increasing hair thickness in women.

Finasteride, a hair loss drug, may cause long-term sexual side effects due to changes in hormone receptor levels.

Androgens like testosterone are important hormones for both men and women, made differently in each sex and affecting the body by regulating genes and quick interactions with cell components.

SRD5A2 gene variations affect PTSD symptoms differently in males and females.

Muscles can make their own androgens, which may help muscle growth.

Metformin taken during pregnancy increases SHBG in newborns but doesn't change other hormone levels in mothers or babies.

Epitestosterone may act as a weak antiandrogen and can inhibit an enzyme involved in testosterone metabolism.

The exact cause of increased 5α-reductase activity leading to hirsutism in women is still unknown.

Androgens may influence T cells, contributing to higher autoimmune liver disease risk in women.

Minoxidil boosts enzymes that help hair growth.

Differences in enzyme activity and androgen receptors in hair follicles may explain why hair loss appears differently in men and women.

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

Sex and stress steroids quickly change brain cell structures in the hippocampus.

Finasteride effectively reduces prostate size and lowers surgery risk in men with benign prostatic hyperplasia.

Finasteride reduces prostate cancer risk but may affect ejaculatory volume and requires careful consideration for young men.

A point mutation in the androgen receptor gene causes complete androgen insensitivity.

DHT is needed for long-term depression, while E2 is needed for full long-term potentiation in male rat brains.

Androgens cause oil-producing skin cells with androgen receptors to mature and produce more oil.

Androgens like testosterone increase colon muscle contractions by affecting calcium pathways.

Citrullus colocynthis fruit extract may effectively treat testosterone-related hair loss, similar to finasteride.

5-alpha-reductase inhibitors may cause a low incidence of erectile dysfunction that decreases over time.

The conclusion is that future hair loss treatments should target the root causes of hair thinning, not just promote hair growth.

Men with common hair loss may have a higher risk of heart disease and diabetes, and should be checked for these conditions.

Androgen receptor signaling causes early aging of cells important for hair growth by damaging their DNA.

Analyzing hair with this method can help understand and monitor scalp conditions and treatment effects.

Gonadal hormones significantly affect the severity of alopecia areata in mice.

Human keratinocytes do not naturally respond to androgens.