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Pregnancy can cause skin darkening, varicose veins, more sweating, hair growth, hair loss after birth, nail changes, and gum inflammation.

Protoporphyrin IX is useful in cancer treatment but can cause health problems if not properly regulated.

Masculine facial features may not reliably indicate heritable health, and more research is needed.

Facial feminization surgery is effective in helping transgender women appear more feminine and has high patient satisfaction.

Modulating BMP activity changes the number, size, shape, and type of ectodermal organs.

Silver nanoparticles coated with substances like PEG showed strong antibacterial effects and improved wound healing when used in hydrogels.

Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.

Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.

Stress can stop hair growth in mice, and treatments can reverse this effect.

TRP channels in the skin are important for sensation and health, and targeting them could help treat skin disorders.

No single treatment is consistently effective for alopecia areata, and more research is needed.

Lignans and neolignans from plants may help protect against various health issues, including cancer and heart disease.

Folliculitis decalvans is a rare scalp condition causing scarring hair loss, treated with long-term antibiotics and other medications, but it often comes back and is hard to manage.

Choosing the right model order in brain connectivity analysis can affect the detection of differences between healthy individuals and those with seasonal affective disorder.

The document concludes that understanding the sebaceous gland's development and function is key to addressing related skin diseases and aging effects.

Researchers found that hair shedding happens mostly when new hair is growing and involves a unique process.

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

Eating the right nutrients can improve hair health, but taking extra supplements usually doesn't help unless you have a deficiency.

Men over 66 taking medication for prostate enlargement have a higher risk of depression and self-harm, especially in the first 18 months of treatment.

Researchers developed a new model for more realistic computer graphics of hair by considering how light scatters on hair fibers.

Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.

Older adults have a high rate of skin cancers like basal cell carcinoma and melanoma, mainly due to UV exposure and age.

Mutant mice help researchers understand hair growth and related genetic factors.

The study found that diseases can be grouped by symptoms and that the accuracy of predicting disease-related genes varies with the data source.

The document concludes that cosmetic surgery is still mainly a practice for women and the gender gap in this field is expected to continue.

Certain types of T cells are essential for healthy skin and play a role in skin diseases, but more research is needed to improve treatments.

The TGF-β family helps control how cells change and move, affecting skin, hair, and organ development.

Inherited ichthyoses cause widespread skin scaling and thickening due to gene mutations.

Despite progress, better treatments and understanding are needed for the high rates of long-term issues and deaths linked to eating disorders.

Hair shedding is an active process that could be targeted to treat hair loss.