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Changing the environment around stem cells could help tissue repair, but it's hard to be precise and avoid side effects.

Mice lacking the PPARγ gene in their fat cells had almost no fat tissue, severe metabolic problems, and abnormal development of other fat-related tissues.

Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.

Rhodococcus equi causes severe pneumonia in young foals, and effective vaccines are needed due to foals' weak immune responses.

ICG-enhanced NIR laser therapy may be a promising acne treatment with improvement and no side effects.

Hair ages due to genetics and environmental factors, leading to graying and thinning, with treatments available for some conditions.

Skin problems in COVID-19 patients are rare and may be due to the body's complex immune response or blood clotting issues.

Frequent hair coloring and styling can damage hair and cause breakage or loss.

Short-chain fatty acids from *Cutibacterium acnes* cause skin inflammation, contributing to acne.

Shrinking skin cancer increases the chance of cancer in nearby lymph nodes.

The intensive conventional diet with exercise led to better long-term weight loss and health improvements than the very low calorie diet in obese type 2 diabetics.

EETs can delay seizures by affecting GABA activity, offering potential new treatments for seizures.

Human hair's ability to get wet is complex and can change with treatments, damage, and environment.

Scientists have created a new hair loss treatment using ultrasound to deliver gene-editing particles, which resulted in up to 90% hair regrowth in mice.

A mother's western diet can make her milk toxic, causing inflammation and hair loss in babies.

The document suggests creating a validated score to diagnose Cushing's Syndrome and considers plasma steroid profiling as a simpler diagnostic method.

Nonablative radiofrequency treatments, especially microneedle and fractional types, can improve acne scars by 25%–75% after 3-4 sessions, with full results in 3 months and some side effects.

The hair follicle pathway significantly affects how easily water-loving chemicals pass through the skin.

Oral tofacitinib shows promise in treating atopic dermatitis and alopecia areata, but only slight improvement in vitiligo.

Tretinoin cream boosts minoxidil absorption, possibly improving hair loss treatment.

Methotrexate effectively treated a 2-year-old's generalized pustular psoriasis without side effects.

Some plants with flavonoids may help treat hair loss and promote hair growth.

An 8-year-old girl with vitiligo developed extra hair growth on her knee after using tacrolimus ointment.

Keratin-based particles safely improve hair strength, smoothness, and heat protection.

Monoolein-alginate beads help heal wounds by controlling moisture and effectively delivering adenosine to the skin.

Inhibiting AP1 in mice skin causes structural changes and weakens the skin barrier.

A 10-year-old girl with Fox Fordyce disease improved with treatment, suggesting the disease can occur before puberty and might be underdiagnosed in young girls.

Hair amino acid levels can indicate metabolic disorders.

Niosomes with rice bran extract could be useful for anti-hair loss products.

UVA1-light therapy successfully treated a child's skin condition, mycosis fungoides.