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Hair follicles have a more inactive cell cycle than other skin cells, which may help develop targeted therapies for skin diseases and cancer.

Olive oil compounds may help prevent cancer in animals, but human results are mixed.

Blocking a specific protein signal can make hair grow on mouse nipples.

Glucocorticoids and sex hormones affect skin health, with potential for targeted treatments to minimize side effects and treat skin conditions.

As sheep age, their hair fibers and follicles grow larger and more organized, with no significant differences between males and females.

Hair follicles are complex, dynamic mini-organs that help us understand cell growth, death, migration, and differentiation, as well as tissue regeneration and tumor biology.

Overexpressing Dsg3 in mice skin causes excessive cell growth and abnormal skin development.

Newborn mouse skin cells can grow hair and this process can be recreated in adult cells to potentially help with hair loss.

Prolactin affects hair growth cycles and can cause early hair follicle regression.

Type 3 5α-reductase is more common and finasteride and dutasteride strongly inhibit it.

Hormones during pregnancy and lactation keep skin stem cells inactive, preventing hair growth.

Mice are useful for researching human hair loss and testing treatments, despite some differences between species.

Stem cells can rejuvenate skin, restore hair, and aid in wound healing.

Human scalp hair follicles can be used to study how prolactin affects hair growth and cell death.

Medroxyprogesterone injections caused hair regrowth in some dogs with alopecia X.

KGF and its receptor are found in enlarged prostate tissue and KGF strongly increases cell growth.

The document concludes that hair loss is complex, affects many people, has limited treatments, and requires more research on its causes and psychological impact.

Different drugs are used to manage breeding, prevent or end pregnancy, and treat reproductive issues in dogs and cats.

Keratins help protect cells, aid in cancer diagnosis, and influence cancer behavior and treatment.

Understanding phenotypic plasticity is crucial for developing effective cancer therapies.

TGF-β is crucial for tissue repair and can cause diseases if not properly regulated.

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.

Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

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

Different types of stem cells with unique roles exist in blood, skin, and intestines, and this variety is important for tissue repair.

Fat cells in the skin help start healing and form important repair cells after injury.

Hidradenitis suppurativa treatment should be tailored to the individual, with quitting smoking being important.

Human hair follicles can make and process prostaglandins, which may affect hair growth.

Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.

Certain signals and genes play a key role in hair growth and regeneration, and understanding these could lead to new treatments for skin regeneration.