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The study found that women with hyperandrogenic PCOS have higher levels of AKT1 and AKT2 proteins in their cells, which may lead to cell dysfunction.

Testosterone can slow down hair growth when combined with certain cells from bald scalps, and this effect can be blocked by an androgen receptor blocker.

A new method accurately measures steroid hormones in a few hair strands and could help study chronic stress and hair loss.

The study concluded that similar pathways regulate hair growth in dogs and mice, and these pathways are disrupted in dogs with Alopecia X, affecting stem cells and hormone metabolism.

Female mice with disrupted 5α-reductase 1 had significant metabolic issues, including stress response problems, insulin resistance, liver fat buildup, and obesity.

The dog likely has a condition similar to Canine alopecia X.

DHT affects testicular development and regulates spermatogenesis in some fish.

Oxidative stress affects hair loss in men with androgenetic alopecia.

Plant-based ingredients in hair care are being replaced by synthetic alternatives.

Pig hair cortisol levels are inheritable and linked to stress responses, which could help select for more resilient pigs.

Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.

The review concluded that male pattern baldness is mostly seen negatively, affecting attractiveness and social appeal.

Testosterone conversion to 5α-DHT may not be essential for its effects on the skin.

Pattern baldness is likely caused by a dominant gene influenced by testosterone levels, making it more common in men.

Hair loss gene linked to prostate issues.

Sex steroids affect the MafB gene differently in male and female hamsters.

High levels of cortisol in hair show long-term stress which can lower fertility in animals.

The document concludes that understanding health requires considering evolutionary perspectives on reproductive fitness, and recognizing the complexity of factors like diet, testosterone, and sexual orientation.

Finasteride changes antioxidant enzyme expression, possibly affecting sperm protection in rats.

Topical finasteride and flutamide reduce gland size and enzyme activity, with flutamide being more potent, potentially treating acne, seborrhea, hirsutism, and androgenic alopecia.

Women with alopecia may have a higher chance of getting thyroid cancer.

Certain gene variations might be linked to severe acne in women but not in men.

Most skin changes during pregnancy are harmless and moles don't significantly change, but many women experience pigmentation changes due to hormones and sun exposure.

Angora goat hair grows faster and produces more protein than cashmere goat hair, and certain hormones and nutrients positively affect hair growth and protein synthesis.

High androgen levels and genetic factors likely cause Becker's nevus and related symptoms.

The skin acts like an endocrine organ, making hormones that affect skin diseases and respond to stress.

Celery extract hair gel at 5% concentration is best for making hair gel.

Minoxidil mixed with 2-hydroxypropyl-β-cyclodextrin in water can improve hair growth more than minoxidil alone.

TGF-alpha is present in sheep and ferret skin and may affect hair growth without directly stimulating cell proliferation.

Women with PCOS have similar bone density to healthy women, but those who are obese have higher bone density at some body sites.