research Effect of 5α-Dihydrotestosterone and Testosterone on Apoptosis in Human Dermal Papilla Cells
High levels of testosterone and 5α-DHT can lead to cell death in cells important for hair growth.
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research Molecular Genetic and Endocrine Mechanisms of Hair Growth
Hormones and their receptors, especially androgens, play a key role in hair growth and disorders like baldness.
research Androgen-Dependent Beard Dermal Papilla Cells Secrete Autocrine Growth Factor(s) in Response to Testosterone Unlike Scalp Cells
Beard cells, unlike scalp cells, produce growth factors in response to testosterone, which may explain differences in hair growth.
research Correlation of Serum 3α-Androstanediol Glucuronide with Acne and Chest Hair Density in Men
Higher levels of a specific hormone are linked to more chest hair and acne in men.
research Biology of Hair Growth
Testosterone and dihydrotestosterone affect hair growth, and new techniques like the folliculogram help study it, but fully understanding hair growth is still complex.
research Endogenous steroid hormones in hair: Investigations on different hair types, pigmentation effects and correlation to nails
Body hair isn't a good substitute for scalp hair in steroid analysis.
research Effect of Helium-Neon Laser Irradiation on Hair Follicle Growth Cycle of Swiss Albino Mice
Helium-neon laser treatment can stimulate hair growth in mice.
research Binding of Steroid Hormones by the 105,000 x g Supernatant Fraction from Homogenates of Rat Skin and Variations during the Hair Cycle
Steroid hormone binding in rat skin varies with pH, heat, and hair cycle phases.
research Hair Biology
The document explains hair biology, the causes of hair loss, and reviews various hair loss treatments.
research Gas chromatography/mass spectrometry based hair steroid profiling may reveal pathogenesis in hair follicles of the scalp
Analyzing hair with this method can help understand and monitor scalp conditions and treatment effects.
research Thyroid and gonadal regulation of hair growth during the seasonal molt in the male European badger, Meles meles L
Thyroid and gonadal hormones control seasonal hair growth and molting in male European badgers.
research The Metabolism of Dehydroepiandrosterone by Human Scalp Hair Follicles
Altered DHEA metabolism in hair follicles may be linked to hair loss in balding men.
research THE ENDOCRINE SYSTEM AND HAIR GROWTH IN THE RAT
Male rats grow hair faster than females, and certain hormones can slow or slightly increase hair growth, but not significantly beyond natural rates.
research Sex hormone levels and body hair growth in !Kung San and Kavango men from Namibia
Lower DHT levels lead to more body hair growth.
research Isolation, culture and in vitro behavior of cells isolated from papillae of human hair follicles
Human papilla cells from hair follicles show unique growth behaviors but don't induce hair growth in vitro.
research Scalp Hair Regrowth in Hormone-Treated Transgender Woman
Hormone therapy with estradiol and spironolactone can regrow scalp hair in transgender women by lowering testosterone to female levels.
research Different patterns of 5α-reductase expression, cellular distribution, and testosterone metabolism in human follicular dermal papilla cells
Androgen effects on hair follicles vary by skin area.
research Testosterone implants in women: Pharmacological dosing for a physiologic effect
Testosterone implants in women require pharmacological dosing to be effective and are generally safe and well-tolerated.
research Hair-Loss Preventing Effect of Grateloupia elliptica
Grateloupia elliptica extract may help prevent hair loss and promote hair growth.
research Biochemical Mechanisms Regulating Human Hair Growth
Androgens shorten hair growth phases, causing finer hair and more severe hair loss in men.
research Influence of age and of testosterone on the response of male rats to parachlorophenylalanine
PCPA induces hypersexual behavior in male rats regardless of age or castration status.
research Ability to culture dermal papilla cells from red deer (Cervus elaphus) hair follicles with differing hormonal responses in vivo offers a new model for studying the control of hair follicle biology
Red deer hair cells offer a new way to study how hormones affect hair growth.
research Sulforaphane promotes murine hair growth by accelerating the degradation of dihydrotestosterone
Sulforaphane may help with hair growth by breaking down a hormone that causes hair loss.
research Testosterone replacement in 49,XXXXY syndrome: andrological, metabolic and neurological aspects
Testosterone therapy improved physical and social health in a male with 49,XXXXY syndrome.
research The In Vitro Use of the Hair Follicle Closure Technique to Study the Follicular and Percutaneous Permeation of Topically Applied Drugs
Hair follicles significantly affect the skin absorption of some drugs.
research Testosterone therapy for women with low sexual desire: a position statement from the Brazilian Society of Endocrinology and Metabolism
Testosterone therapy may slightly increase sexual desire in women with HSDD but lacks broad recommendation due to safety concerns and limited approval.
research Effect of cyclosporin on hair-existing area of nude mice
Cyclosporin extends hair growth in mice, but high-dose corticosteroids block this effect.
research Sex hormones and antiandrogens influence in vitro growth of dermal papilla cells and outer root sheath keratinocytes of human hair follicles
Sex hormones and antiandrogens can either stimulate or inhibit human hair follicle cell growth depending on the dose.
research Verstärkter Haarwuchs unter Langzeittokolyse mit Fenoterol** unter Berücksichtigung von Testosteron, Androstandiol, Cortisol und ACTH*
Fenoterol treatment causes increased hair growth due to higher metabolism in hair follicles, not hormones.
research Application of Ethanol Extracts From Alnus sibirica Fisch. ex Turcz in Hair Growth Promotion
Extracts from Alnus sibirica and oregonin may help with hair growth and prevent hair loss.