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Testosterone affects hair follicles differently across body sites, with beard hair follicles showing more activity of a specific enzyme and presence of androgen receptors compared to scalp hair.

Young and adult hamsters both respond similarly to testosterone and finasteride treatments, but young hamsters aren't good for testing the inhibitory activity of a specific enzyme.

Severe male balding may increase the risk of serious COVID-19, and treatments that reduce androgens or block a specific enzyme might help protect these individuals.

Histone H4, released by cells exposed to colchicine, can cause hair loss by inhibiting cell growth and enzyme activity.

Finasteride, when taken daily, lowers dihydrotestosterone levels but doesn't noticeably affect adrenal steroid production, except by blocking the 5 alpha-reductase enzyme.

Germacrene analogs, especially 8-Hydroxy germacrene B, are more effective than germacrone at blocking a hormone-related enzyme and could help treat hair loss.

Betula platyphylla extract, particularly the H3-2 fraction, may help treat hair loss by promoting cell growth and inhibiting a hair loss-related enzyme.

Padina arborescens and its component MOGG may help prevent hair loss through several actions, including blocking a hair loss-related enzyme.

Alexander the Great's engineers built a causeway using a natural sand bridge, some tiger moths avoid bats by mimicking toxic relatives' sounds, early metabolism and RNA enzymes support the ancient RNA world theory, and vitamin D is crucial for hair growth and its absence can cause baldness.

Human skin makes sexual hormones that affect hair growth, skin health, and healing; too much can cause acne and hair loss, while treatments can manage these conditions.

Male and female skin differ due to hormones, affecting conditions like hair loss, acne, and skin cancer, and suggesting a need for gender-specific treatments.

Substances from Chinese medicines show promise for immune support and disease prevention, but the way they are processed affects their effectiveness.

Androgens have complex effects on hair growth, promoting it in some areas but causing hair loss in others, and our understanding of this is still evolving.

Modulating Cytochrome P450 activity could help develop new skin disease treatments.

Correct skin biopsy techniques are crucial to avoid misdiagnosis of skin diseases.

Different soft tissue fillers can cause various skin reactions; biodegradable fillers are safer and non-biodegradable ones like silicone can lead to long-term problems.

DHEA stimulates skin oil glands and could help postmenopausal women, with potential for acne and excessive hair growth treatments.

Sex hormones, especially androgens, play a key role in causing acne.

Papain and bisulfite break down human hair by dissolving parts of it.

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

Genes and hormones cause hair loss, with four genes contributing equally.

Biotin deficiency in patients on total parenteral nutrition can cause serious symptoms but can be treated with biotin supplements.

Hormonal treatments are effective for severe or persistent acne and should be used with other acne therapies, considering potential side effects.

The study developed a tool to predict how gut microbes process foods and drugs, showing that similar compounds often share metabolic pathways and effects.

sPLA2-X is crucial for normal hair growth and follicle health.

Stress and alcohol affect brain chemicals differently in rats, mice, and humans, influenced by genetic differences.

Measuring reproductive hormones in brown bear hair could help identify their sex and reproductive state, but better collection methods or lab techniques are needed.

Some herbs show promise as antiandrogenic agents.

Minoxidil and caffeine in transfersomes improve hair growth treatment.

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