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Skin's uneven surface and hair follicles affect its stress and strain but don't change its overall strength, and help prevent the skin from peeling apart.

A boy and his father with hereditary hypotrichosis simplex were treated for hair loss, but the treatment result is unknown.

Humans evolved to have less hair and more sweat glands than chimpanzees and macaques.

Sostdc1 controls the size and number of hair and mammary gland structures.

Foxi3 expression in developing teeth and hair is controlled by the ectodysplasin pathway.

Different processes create patterns in skin and things like hair and feathers.

Pustules in toxic erythema are linked to hair follicles or sweat ducts.

Transglutaminase activity is important for skin and is found in both mammals and birds.

Biotin supplements can improve certain skin disorders and hair loss when a deficiency is present.

Genes related to keratin, skin cell differentiation, and immune functions are key in hedgehog skin and spine development.

Deleting the Hoxc13 gene in frogs shows its crucial role in developing skin structures similar to hair.

Miliacin may help prevent hair loss and improve hair growth in mice with a condition similar to human baldness.

COVID-19 can cause hair loss and nail issues, with treatments available for these conditions.

The study found that certain genes are important for hedgehog skin appendage development and immunity, with spines possibly evolving for protection and infection resistance.

Mice without the p21 gene can fully regenerate injured ears due to reduced Sdf1 increase and leukocyte recruitment, suggesting new ways to induce tissue regeneration in mammals.

Understanding how melanocyte stem cells work could lead to new treatments for hair graying and skin pigmentation disorders.

Lizards can regrow their tails, and studying this process helps understand scar-free healing and limb regeneration.

Red clover extract improved hair, skin, mood, sleep, and tiredness in postmenopausal women.

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.

Chronic inflammatory skin diseases are caused by disrupted interactions between skin cells and immune cells.

Bird foot scales develop differently and can repair but not fully regenerate due to the lack of specialized stem cell areas.

Magnesium Silicate Sprays help heal burn wounds and regrow skin features better than commercial products.

Different types of PPARγ are found in varying amounts in human skin and its parts, which could affect how skin treatments work.

The conclusion is that using light-sheet fluorescence microscopy with a special solution can effectively create detailed 3D images of human skin for dermatological research.

Aging causes sweat glands to shrink and move upward, leading to less elastic skin and more wrinkles.

Key genes can rewire networks, changing skin appendage types.

The skin systems of jawed vertebrates evolved diverse appendages like hair and scales from a common structure over 420 million years ago.

Forehead creases are formed by a tight connection between the skin and muscle through dense fibers, with changes in skin thickness and fewer skin appendages near the creases.

Advanced human skin models improve drug development and could replace animal testing.

MicroRNAs play a crucial role in skin and hair health, affecting everything from growth to aging, and could potentially be used in treating skin diseases.