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Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.

The conclusion is that teeth, hair, and claws have similar stem cell niches, which are important for growth and repair, and more research is needed on their regulation and potential markers.

Sex hormones, especially estradiol, can change chicken feather shapes and colors.

Natural herbal compounds might treat certain medical conditions by reducing DHT levels, but more research is needed to confirm their effectiveness and safety.

A new mutation in the hairless gene causes hair loss and skin wrinkling in mice.

The study found genetic differences related to hair development that may explain hair loss in a patient with Trichorhinophalangeal syndrome type I.

Certain genes are more active in baby scalp cells and can help grow hair when added to adult mouse skin cells.

Mutations in Plcd1 and Plcd3 together cause severe hair loss in mice.

Key genes can rewire networks, changing skin appendage types.

Some drugs can cause skin reactions, which may improve when the drug is stopped, and rapid diagnosis and stopping the drug is crucial.

The document concludes that hair biology is complex and there are still unanswered questions about hair loss and follicle changes.

Rabbit skin with active hair growth shows thicker, redder areas due to larger, more numerous hair follicles and increased blood vessels.

The research identified two types of keratinocytes in chicken scales: one for hard scales and another for soft skin, with similarities to human skin differentiation.

The skin has about 230,000 touch-sensitive nerve fibers, with high concentrations in the hands and face.

Estrogen is important for keeping adult mouse nipple skin healthy by controlling certain cell signals.

Scientists created three types of structures to help regrow hair follicles, and all showed promising results for hair regeneration.

Improving knowledge and practices in animal fibre production is crucial to meet market demands and potentially revive natural fibres.

As sheep age, their hair fibers and follicles grow larger and more organized, with no significant differences between males and females.

Human hair cells can be used to grow new hair on rat ears, suggesting a possible treatment for hair loss.

Herbal formula shows promise for hair loss treatment.

The document explains what healthy skin, nails, and hair look like on an ultrasound.

Pangolins have lost some skin-related genes, but kept others, leading to their unique scales and skin features.

A neem-based herbal treatment worked better than ivermectin for sarcoptic mange in camels, improving their recovery and overall health.

Pangolins have lost some skin-related genes, but kept others, showing complex skin evolution.

The document concludes that diagnosing and managing plaque psoriasis, particularly in sensitive areas, is challenging and requires careful differentiation from similar skin conditions.

Different ectodermal organs like hair and feathers regenerate differently, with specific stem cells and signals involved in their growth and response to the environment.

Hair transplantation between identical twins can successfully treat severe, nonprogressive hair loss due to follicular aplasia.

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

Genetic testing is crucial for diagnosing congenital atrichia, a rare condition causing irreversible hair loss.

Long-COVID has diverse, long-term health impacts, especially in young people.