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Ionizing radiation damages human hair follicles by stopping cell growth, causing cell death, disrupting color, and increasing stress and damage markers.

Minoxidil treatment can reduce hair shedding, increase hair volume, and even change hair color in patients with loose anagen hair syndrome.

Gray hair is caused by reduced melanin production or transfer issues, linked to aging and possibly health conditions, with treatments focusing on color camouflage.

Dogs have varying numbers of touch-sensitive Merkel cells in different skin areas, with most in the oral mucosa and facial skin, unrelated to age, sex, breed, or color.

The research showed how melanocytes develop, move, and respond to UV light, and their stem cells' role in hair color and skin cancer risk.

Rice bran extract can help with hair growth, thickness, and color.

The research found a way to measure hair surface changes by analyzing how light reflects off of it, and determined hair cuticle angles vary by hair length and color.

The study found that giant pandas have more melanin in black hair follicles than white, with gene expression differences that could affect hair color and skin health.

Hair aging is caused by stress, hormones, inflammation, and DNA damage affecting hair growth and color.

Minoxidil, a common hair treatment, may cause hair to turn grey or change color, especially with long-term use or if you have a family history of grey hair.

Some drugs can cause reversible hair loss, but certain chemotherapy drugs may lead to permanent hair loss; drugs can also change hair color and texture.

Testosterone in older women can increase bone density, muscle mass, fat mass, improve memory, and boost libido, but may cause nipple color changes.

This special edition focuses on the unique aspects of treating skin conditions in women, including during pregnancy and in diverse populations like women of color and transgender patients.

Some drugs can cause hair loss, increase hair growth, or change hair color, but stopping the drug usually reverses these effects.

Hair loss treated with minoxidil, finasteride, laser/light, hair transplant, and scalp prostheses; more research needed for skin of color.

Chemotherapy can cause hair changes similar to alopecia areata, which might lead to misdiagnosis.

Ultrasound is a useful, non-invasive tool in dermatology for diagnosing skin conditions and guiding treatments, but it has some limitations.

Hair loss links to high blood pressure, high fat levels, and metabolic issues, suggesting early heart disease screening.

Different tests are used to see how hair care products affect hair, and choosing the right test is important for accurate results.

Crossbreeding certain European cattle breeds may cause hair and physical issues in cattle.

Scalp micropigmentation, a cosmetic tattoo technique, is a promising non-surgical treatment for hair and scalp deformities, despite potential complications.

Different ethnic hair traits must be considered for successful hair restoration surgery to achieve natural-looking results.

The conclusion is that a systematic approach is key for treating symmetrical alopecia in dogs, but treatment may not always be necessary.

Urea helps hair dye penetrate better and last longer.

Grape seed oil improved hair quality the most, followed by rosehip and safflower seed oils, and reduced damage from shampoo.

Swiss Holstein cattle with curly, short hair carry genes from the Simmental breed.

The book concludes that treating acne scars requires a variety of methods and patience, with no single best way to classify or treat them.

The conclusion is that different types of hair loss in dogs and cats can be cosmetic or serious, and affected animals should not be bred.

High temperatures, acidic conditions, and too much coconut oil damage hair, while a pH of 5 to 7 keeps it healthy.

A KRT71 mutation in Hereford cattle in Uruguay causes thin, curly hair and scaly skin.