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Men and women experience skin aging differently due to changes in sex hormone levels with age.

Cell death shapes skin stem cell environments, affecting inflammation, repair, and cancer.

Human skin cells with stem-like features can help create new hair follicles and sebaceous glands when combined with other cells.

Pubertal acne is linked to hormonal changes, affects quality of life, and is treated similarly to adult acne.

Increased FGFR2b signaling, influenced by androgens, plays a role in causing acne.

Creating stronger blockers for skin enzymes might lead to better treatment for conditions like acne and excessive hair growth.

Near-infrared laser therapy with Indocyanine Green dye improves acne by reducing inflammation without side effects.

PPARγ is crucial for skin health but can have both beneficial and harmful effects.

Cytokines and neuropeptides are key in controlling androgen levels, affecting skin and hair conditions.

The document recommends using both clinical evaluation and various measurement methods to assess skin greasiness, considering factors like temperature and hormones.

ACBP is crucial for healthy skin in mice.

Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.

Acne can't be cured but can be managed with treatments like benzoyl peroxide and diet changes; it's costly and can lead to scarring and mental health issues.

Scientists created a long-lasting stem cell line from human hair that can turn into different skin and hair cell types.

Type 3 Innate Lymphoid Cells help maintain skin health and balance, and are involved in skin diseases and healing.

Increased HIF-1α is linked to the inflammation and severity of hidradenitis suppurativa, suggesting treatments that lower HIF-1α could help.

Autophagy prevents early aging and maintains lipid and pheromone balance in mouse glands.

Hormonal treatments are effective as a second-line option for moderate-to-severe acne in females, but should be used with caution due to health risks.

N,N-Dimethylglycine Sodium Salt helps reduce skin inflammation and improves skin cell growth and healing.

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

Epidermal stem cells could lead to new treatments for skin and hair disorders.

Lgr5 is a marker for active, self-renewing stem cells in the intestine and skin, important for tissue maintenance.

The document concludes that adult mammalian skin contains multiple stem cell populations with specific markers, important for understanding skin regeneration and related conditions.

Smad-4 and Smad-7 are key in hair follicle development, with other Smads being less important.

Skin and hair renewal is maintained by both fast and slow cycling stem cells, with hair regrowth primarily driven by specific stem cells in the hair follicle bulge. These cells can also help heal wounds and potentially treat hair loss.

The skin's ability to produce hormones is linked to various skin conditions, and better understanding this process could lead to new treatments.

The Hairless gene is crucial for healthy skin and hair growth.

Hair loss in Androgenetic alopecia (AGA) is due to altered cell sensitivity to hormones, not increased hormone levels. Hair growth periods shorten over time, causing hair to become thinner and shorter. This is linked to miscommunication between cell pathways in hair follicles. There's also a change in gene expression related to blood vessels and cell growth in balding hair follicles. The exact molecular causes of AGA are still unclear.

Using defensins to activate stem cells may improve skin aging signs without causing inflammation.

Different types of stem cells in hair follicles play unique roles in wound healing and hair growth, with some stem cells not originating from existing hair follicles but from non-hair follicle cells. WNT signaling and the Lhx2 factor are key in creating new hair follicles.