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Rats can't grow new hair follicles after skin wounds, unlike mice, due to differences in gene expression and response to WNT signaling.

Hair analysis can show nutritional status and environmental exposure, with phosphorus being very stable in hair and differences found based on gender and conditions like depression and autism.

Nanotechnology is improving drug delivery and targeting, with promising applications in cancer treatment, gene therapy, and cosmetics, but challenges remain in ensuring precise delivery and safety.

Skin cell-derived vesicles can help heal skin injuries effectively.

Microneedle arrays with nanotechnology show promise for painless drug delivery through the skin but need more research on safety and effectiveness.

Human hair contains more glycosaminoglycans in children than adults, and these compounds decrease with age, possibly affecting hair thickness.

Syphilis chancres can be atypical, and fiber implantation for baldness is risky and often fails.

Estrogen can temporarily slow down hair growth but this can be reversed.

Certain inhibitors slow down plant growth by causing early cell specialization without changing the cell development pattern.

The levonorgestrel implant increases free testosterone and lowers SHBG more than DMPA-IM and the copper IUD.

Regenerative cosmetics can improve skin and hair by reducing wrinkles, healing wounds, and promoting hair growth.

Micelles can change cetirizine's ionization, affecting its effectiveness in treatments.

GRHL3 is important for controlling gene activity in skin cells during different stages of their development.

Short telomeres contribute to aging and cancer, and while telomerase can delay aging, it may also promote cancer.

HNG may help prevent the negative effects of chemotherapy on sperm production and white blood cell counts.

PDI helps restore over-bleached hair's strength and structure by attaching special peptides.

New tools show that in fish, NPY increases feeding and somatostatin decreases it.

Regenerative medicine shows promise for improving hair and skin but needs more research for standard use.

Experts recommend using evidence-based methods to diagnose and treat hirsutism, focusing on symptoms and underlying causes.

Human hair protein modifications could potentially indicate heart disease risk.

Birth control pills with low-dose estrogen and antiandrogenic progestins can effectively treat acne.

The guidelines advise against using testosterone and DHEA in women for most conditions due to safety and effectiveness concerns, but suggest considering testosterone for postmenopausal women with low sexual desire.

Microbial biosurfactants could be a safer and environmentally friendly alternative to chemical surfactants in cosmetics.

Antiandrogens help manage PCOS symptoms but need careful monitoring.

New therapies are being developed that target integrin pathways to treat various diseases.

Mutations in the SRD5A3 gene cause a new type of glycosylation disorder by blocking the production of a molecule necessary for protein glycosylation.

Oxidative stress is a key factor in the development of Polycystic Ovary Syndrome, and weight management can improve symptoms.

Mouse stem cells from hair follicles can improve wound healing and reduce scarring.

C60 fullerenes can alter protein function and may help develop new disease inhibitors.

Indian women with PCOS may need different ultrasound criteria for diagnosis than current standards.