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Anabolic steroids boost muscle growth, SARMs increase muscle mass and bone density without side effects, and myostatin inhibitors block a protein that stops muscle growth, but each has potential risks.

Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.

The model suggests that scalp tension could lead to hair loss, with factors like blood vessel hardening, enlarged oil glands, and poor microcirculation also playing a role. It also hints at a possible link between skull shape and baldness pattern.

Epigenetic changes control how adult stem cells work and can lead to diseases like cancer if they go wrong.

The skin's basement membrane has specialized structures and molecules for different tissue interactions, important for hair growth and attachment.

The document concludes that there are still unknowns about the effectiveness, risks, and detection of performance-enhancing drugs, and doping remains a challenge.

Finasteride exposure affects gene expression and anogenital distance in male rat fetuses.

Testosterone therapy aims to treat hormone deficiencies and various conditions safely and effectively, but requires careful patient monitoring due to potential side effects.

Male pattern baldness may be caused by factors like poor blood circulation, scalp tension, stress, and hormonal imbalances, but the exact causes are still unclear.

Different proteins are linked to the varying thickness of sheep and goat hair types.

RNA editing significantly affects hair growth and follicle cycling in the Tianzhu white yak.

cDermo-1 causes dense skin, feathers, and scales in chickens.

More melanoblasts in hair follicles mean better survival and proper hair pigmentation.

Researchers found genes and microRNAs that control curly fleece in Chinese Tan sheep.

Changes in KRT17 gene activity linked to wool production in Angora rabbits.

Different miRNAs in Rex rabbit skin affect cell processes and hair growth.

Sox6 is important in heart and kidney health, affecting diseases like diabetes, heart disease, and high blood pressure.

Different types of skin fibroblasts have unique roles in skin health and disease.

CRISPR/Cas9 gene-editing shows promise for improving sheep and goat breeding but faces challenges with efficiency and accuracy.

Overactivating Hedgehog signaling makes hair follicle cells in mice grow hair faster and create more follicles.

Adult hair follicle cells can create new hair follicles from corneal cells with the right support.

Brg1 is crucial for hair growth and skin repair by maintaining stem cells and promoting regeneration.

TGF-β is crucial for controlling stem cell behavior and changes in its signaling can lead to diseases like cancer.

The document concludes that sex hormones are crucial for mammalian reproduction, health, and behavior, and require more research for therapeutic use.

The document concludes that Syndromes of Severe Insulin Resistance are rare disorders with limited treatment options.

TGF-β signaling is crucial for stem cell maintenance, differentiation, and has implications for cancer treatment.

Testosterone and dihydrotestosterone play a role in women's health issues like excess hair and baldness, and treatments blocking these hormones may help.

Genes related to pigmentation, body rhythms, and behavior change during hares' seasonal coat color transition, with a common genetic mechanism in two hare species.

The skin's basement membrane is specially designed to support different types of connections between skin layers and hair follicles.

New compounds with carborane showed anti-androgen effects similar to flutamide.