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Testosterone applied to rabbit skin increases skin cell growth and changes skin structure.

Chitosan/LiCl composite scaffolds help heal deep skin wounds better.

Ethosomes improve drug delivery through the skin but may have side effects like irritation.

Hyaluronic acid-based HA2 hydrogel helps heal skin wounds better with less scarring.

PRP injections effectively promote hair growth in androgenetic alopecia patients.

Changing light exposure can affect hair growth timing in goats, possibly due to a key gene, CSDC2.

Polygonum multiflorum can promote hair growth when taken orally or applied topically.

Chemotherapy causes hair loss starting soon after treatment begins and recovers about 3 months after ending, while tamoxifen does not significantly affect hair growth.

Multimodal minoxidil microemulsion is more effective in treating hair loss than minoxidil alone.

The study found that hair follicles are above muscle connections in the scalp, which may help protect stem cell areas.

Certain herbal combinations in traditional Chinese medicine might be effective for treating hair loss, focusing on liver or stomach health.

Sex hormones affect hair and feather growth and may help manage alopecia and hormone-dependent cancers.

HPV vaccines are generally safe but need further investigation for rare side effects.

New methods improve how well skin treatments work by helping drugs get through the skin barrier.

A woman had both Graham Little-Piccardi-Lassueur syndrome, causing hair loss, and complete androgen insensitivity syndrome, making her genetically male but physically female. This suggests androgens don't affect the hair loss condition.

Finasteride reduces dihydrotestosterone, increases testosterone, and may treat hirsutism in women.

The document concludes that correct diagnosis of alopecia types is crucial, scalp biopsies are important, and more research is needed.

Lack or blocking of SRD5a, a key component in hormone creation, can lead to conditions like pseudohermaphrodism and affect hair growth, bone mass, muscle strength, and reproductive health. More research is needed on its regulation from fertilization to adulthood.

Intense exercise at night can delay the body's internal clock gene expression by 2 to 4 hours.

Normal levels of DHT can reduce belly fat and increase muscle, but too much can lead to hair loss, prostate issues, and possibly heart disease.

Amenorrhea, or the absence of periods, should be evaluated by age 15 or within five years of early breast development, and is most commonly caused by conditions like polycystic ovary syndrome and hypothalamic amenorrhea.

5α-Reductase inhibitors can help treat hair loss, acne, and prostate issues by reducing DHT levels.

High energy boosts root hair growth in plants, while low energy stops it.

Finasteride causes lasting fertility decrease in rats.

Quick treatment of hair disorders in teenage girls is important because of the emotional effects.

The new progesterone derivatives effectively inhibit 5α-reductase and bind to the androgen receptor.

Scalp flaps are used for reconstruction, considering factors like inelasticity, hair growth, and blood supply, with techniques adapting to age-related changes in vascularity.

Hair loss can lead to significant stigma and lower quality of life, especially for women and those with certain types of alopecia.

New treatments for hair loss may target specific pathways and generate new hair follicles.

The conclusion is that skin and hair patterns are formed by a mix of cell activities, molecular signals, and environmental factors.