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400 nm particles penetrate hair follicles best, but mouse models aren't fully reliable for human studies.

Sodium valproate is effective in treating epilepsy, especially in patients who don't respond to other medications.

Psoriasis patients are willing to pay less than the cost of biologic treatments for remission and don't expect complete or long-term symptom clearance.

Clinical exams are good for diagnosing some women's hair loss, but lab tests aren't always needed.

Hair test results can be misleading due to external contamination, so they shouldn't be used alone to assess long-term drug use.

Herpes gestationis is linked to certain antigens, atopic eczema affects T cell populations and may be eased by breastfeeding, higher doses of anti-androgen treatment can improve androgenic alopecia, topical minoxidil increases hair thickness, long-term methotrexate therapy can cause liver fibrosis in psoriasis patients, and Lichen Sclerosus et Atrophicus patients aren't at higher risk for autoimmune disorders.

Women with severe acne, hirsutism, and androgenic alopecia often have higher levels of certain androgens, but the specific pattern can't be predicted just by looking at symptoms.

Testosterone's role in women's sex drive is unclear and needs more research, as low levels don't always mean less sexual interest and high levels can cause side effects.

A girl with rickets and hair loss was found to have a rare condition where her body didn't respond to vitamin D treatment.

Hair loss in men is mainly caused by hormones and genes, and while current treatments can slow it down, they can't fully stop it.

Corporate social responsibility can improve consumer ratings of product performance, especially when the company is seen as benevolent and consumers aren't experts on the product.

Scientists found a new, less invasive way to study body clocks using hair cells, which shows shift workers' body clocks don't match their lifestyles.

Male hormones, particularly DHT, are linked to male pattern hair loss, and treatments like finasteride can help, but they don't work for postmenopausal women's hair loss, which may have different causes.

Hormones, especially androgens, play a big role in acne, but most acne sufferers don't have a hormone disorder. Hormonal treatments, including birth control pills, can be very effective for women whose acne doesn't improve with regular treatments.

Androgens play a complex role in skin conditions like acne and hair loss in women, and normal blood levels don't always show true androgen status.

Mothers and newborns with dental fillings had higher mercury in their hair, but getting fillings during pregnancy didn't raise mercury levels further.

The study found that women with PCOS have more and larger ovarian follicles and differences in ovarian structure, but these features alone can't always diagnose PCOS.

People with alopecia areata often have lower vitamin D levels, which are linked to more severe and longer-lasting hair loss, but vitamin D receptor levels in the skin don't show the same pattern and don't predict treatment success.

Finasteride effectively treats enlarged prostate and male baldness, improves symptoms of hirsutism in women, but doesn't work for acne, and may delay prostate cancer progression with few side effects.

Different factors like pH, gel type, and chemical enhancers affect how well hydrocortisone gets into hair follicles, and less hydrated skin doesn't work well with the test method.

An 11-month-old boy with Menkes disease had severe brain shrinkage and abnormal blood vessels, and didn't respond well to treatment.

People with vitiligo may have a higher rate of Helicobacter pylori infection, but the infection's severity doesn't affect how severe the vitiligo is.

Melatonin implants can change the seasonal prolactin levels and hair growth in adult cashmere goats but not in juveniles, and don't delay spring moult for better fiber harvesting.

We need better treatments for hair loss, and while test-tube methods are helpful, they can't fully replace animal tests for evaluating new hair growth treatments.

People with alopecia areata have higher levels of osteopontin, which might be important in the disease's development, but this doesn't relate to how severe the disease is.

Tenofovir is more effective than adefovir for resistant hepatitis B, Fibroscan is good for assessing liver damage, regulatory T cells may help hepatitis C persist, and other insights into liver health and disease were found.

PDO, PLLA, and PCL threads increase collagen in ageing skin but don't change MMP1 gene expression.

Exposure to toxic elements like mercury and lead may be linked to autism, and a higher zinc to copper ratio might help protect against it.

Metformin improves early signs of heart disease in women with PCOS and raises apelin levels, but doesn't significantly change artery thickness.

A device was made in 2008 to measure hair loss severity. Other findings include: frizzy mutation in mice isn't related to Fgfr2, C/EBPx marks preadipocytes, Cyclosporin A speeds up hair growth in mice, blocking plasmin and metalloproteinases hinders healing, hyperbaric oxygen helps ischemic wound healing, amniotic membranes heal wounds better than polyurethane foam, rhVEGF165 from a fibrin matrix improves tissue flap viability and induces VEGF-R2 expression, and bFGF enhances wound healing and reduces scarring in rabbits.