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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.

Chemotherapy causes hair loss by damaging hair follicles and stem cells, with more research needed for prevention and treatment.

The document concludes that the 5 alpha-reductase enzymes are important in steroid metabolism and related to various human diseases, with inhibitors used to treat conditions like male pattern baldness and prostate issues.

Tiny pollution particles called PM2.5 can harm skin cells by causing stress, damage to cell parts, and cell death.

About 7% to 15% of Iranian women have polycystic ovary syndrome, depending on the criteria used to diagnose it.

The guidelines suggest a detailed approach to diagnosing and treating lupus, with a focus on regular check-ups, personalized medicine, and a range of drug options for different cases.

The document provides a method to classify human hair growth stages using a model with human scalp on mice, aiming to standardize hair research.

Planarian regeneration begins with a specific gene activation caused by injury, essential for healing and tissue regrowth.

Different types of skin cells play specific roles in development, healing, and cancer.

More dermal papilla cells in hair follicles lead to larger, healthier hair, while fewer cells cause hair thinning and loss.

Noggin is necessary to start the hair growth phase in skin after birth.

The Multi-Organ-Chip improves the growth and quality of skin and hair in the lab, potentially replacing animal testing.

Iron deficiency may be related to hair loss, but there's not enough evidence to recommend iron screening or supplements for all hair loss patients.

PGD2 stops hair growth and is higher in bald men with AGA.

Male and female skin differ in many ways, which could lead to gender-specific skin treatments.

Stem cell niches are crucial for regulating stem cell renewal and differentiation, and understanding them can help in developing regenerative therapies.

Overexpression of activin A in mice skin causes skin thickening, fibrosis, and improved wound healing.

Artificial skin development has challenges, but new materials and understanding cell behavior could improve tissue repair. Also, certain growth factors and hydrogel technology show promise for advanced skin replacement therapies.

Calcium affects where root hairs grow, but other unknown factors determine their growth direction.

A gene called APCDD1, which controls hair growth, is found to be faulty in a type of hair loss called hereditary hypotrichosis simplex.

Use minoxidil for hair loss; finasteride and dutasteride for men, dutasteride for women.

Lifestyle changes can improve body composition, excess male hormone levels, and insulin resistance in women with PCOS.

Male and female bodies respond differently to stress, influenced by hormones and development stages, with implications for stress-related diseases.

Visible light can damage skin and most sunscreens don't block it well; more research is needed on its effects and protection methods.

The ZIP7 gene helps control zinc levels in cells by moving zinc from the Golgi apparatus to the cytoplasm.

Stress stops hair growth in mice by causing early hair growth phase end and harmful inflammation through a specific nerve-related pathway.

Fungi-produced compounds can change plant root growth.

Hair follicle development and microbes help regulatory T cells gather in newborn skin.

Targeted cancer therapies often cause serious skin problems that need careful management.

Hair follicle stem cells use specific chromatin changes to control their growth and differentiation.