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Lizards can regrow their tail scales with the same structure, distribution, and gender-specific features as the original ones, and this unique ability is not seen in adult mammals.

Hair in mammals likely evolved from glandular structures, not scales.

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

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.

Cornification is how skin cells die to form the protective outer layer of skin, hair, and nails.

Mouse tail skin has different keratinization near hair follicles and scales.

The conclusion is that normal trace element levels in newborn calves' hair are between the 25th and 75th percentiles, and levels outside this may indicate diselementosis.

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.

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

Elephant tail-hair can show past stress levels, matching times when stressful events happened.

A dog's skin infection caused by the fungus Chaetomium globosum was effectively treated with ketoconazole.

Using a niacinamide cream can improve life quality for breast cancer patients during chemotherapy.

Hard skin features like scales, feathers, and hair evolved through specific protein changes in different animal groups.

The document concludes that accurate diagnosis of hair disorders is crucial and requires a range of diagnostic methods.

Aloe vera gel effectively treated mange in camels.

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

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

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

Loss of keratin K2 causes skin problems and inflammation.

Low testosterone might be a common cause of hair loss in male dogs.

Sex hormones affect hair and feather growth and may help manage alopecia and hormone-dependent cancers.

Rabbits lacking the Hoxc13 gene show similar hair and skin issues to humans with ECTD-9, making them good for research on this condition.

The document discusses various diseases of the outer ear, categorized by symptoms like redness, crusts, bumps, pus-filled lesions, lumps, ulcers, and hair loss.

The harlequin ichthyosis mouse mutation causes thick skin and early death, resembling a human skin disorder.

A rare skin condition with dark, thick, warty patches and some hair loss was found in a newborn boy.

Human hair keratin might be good for filtering out harmful substances from water.

Activating β-catenin in different skin stem cells causes various types of hair growth and skin tumors.

A horse with severe hair loss was diagnosed with alopecia areata and a yeast infection.

Both fluoxetine and clomipramine effectively treat dog lick dermatitis, but fluoxetine works faster with lower recurrence, while clomipramine has fewer side effects.

Skin stem cells maintain and repair the outer layer of skin, with some types being essential for healing wounds.