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Treating psoriasis on the scalp, nails, and skin folds is challenging, often requiring systemic treatments for severe cases, with some success in topical and biologic treatments.

Lampreys have a functional vitamin D receptor that may help detoxify harmful substances.

Finasteride doesn't harm male fertility or sperm quality, but may slightly reduce ejaculate volume.

The Protein-Sparing Modified Fast is effective for rapid weight loss and maintaining it, but requires medical supervision and can have side effects.

Shift work disrupts the body's natural clock, leading to health problems.

A genetic region near the PAX1 gene is linked to a higher risk of scoliosis in females.

MicroRNA-214 is important for skin and hair growth because it affects the Wnt pathway.

Thymus transplantation successfully restored immune function in infants with FOXN1 deficiency.

Prostaglandin F2alpha and related compounds can increase hair growth and darken hair in mice.

Wharton’s Jelly stem cells from the umbilical cord improve skin healing and hair growth without scarring.

One minoxidil-sensitive potassium channel exists in human hair follicles.

Smoking may contribute to hair loss in men.

COVID-19 can cause skin issues like rashes and "COVID toes," and people with skin conditions should adjust their treatments if they get the virus.

Certain immune cells in the skin release a protein that stops hair growth by keeping hair stem cells inactive.

Women with PCOS have a higher chance of experiencing depression, anxiety, and sleep disorders.

Men with hair loss experience lower quality of life, worsened by factors like age, severity, and treatment history.

Scientists turned mouse stem cells into skin cells that can grow into skin layers and structures.

Naked mole-rats have unique skin and hair nerve structures, lacking certain pain and temperature-related neuropeptides.

UVB exposure in human skin causes macrophages to produce more IL-10 and less IL-12, leading to immunosuppression.

Steroids help hair regrowth, and minoxidil slows post-steroid hair loss, but effects are temporary.

Minoxidil solution helps hair regrowth in alopecia areata, with 5% being more effective.

Spironolactone is effective for treating acne, hirsutism, and androgenic alopecia in women with few side effects.

Metabolic signals and cell shape influence how cells develop and change.

People with alopecia areata often have other health issues like skin diseases, metabolic syndrome, stomach infections, lupus, anemia, thyroid problems, mental health issues, vitamin D deficiency, and hearing and eye problems.

Male hormones and their receptors play a key role in hair loss and skin health, with potential new treatments being explored.

Cystatin M/E strongly inhibits cathepsin V and cathepsin L, important for skin formation.

Hormones like estrogen, testosterone, progesterone, and prolactin play complex roles in female sexual function, with testosterone potentially improving sexual desire, arousal, and satisfaction. However, more research is needed to establish safe and effective hormone treatments for female sexual dysfunction.

Researchers mapped and categorized specific keratin-associated protein genes on human chromosome 21q22.1.

The study found that two enzymes linked to hair loss are located in different parts of the scalp, supporting a common treatment's effectiveness.

Scientists created stem cells that can grow hair and skin.