research Expression of mRNA for androgen receptor, 5alpha-reductase and 17beta-hydroxysteroid dehydrogenase in human dermal papilla cells
Hair sensitivity to androgens is partly controlled by specific enzyme expressions in different hair areas.
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research Focus on Skin as a Possible Port of Entry for Solid Nanoparticles and the Toxicological Impact
Nanoparticles can enter the skin, potentially causing toxicity, especially in damaged skin.
research The control of hair growth: An overview
Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.
research The genetics of hair shaft disorders
The article explains the genetic causes and symptoms of various hair disorders and highlights the need for more research to find treatments.
research Clinical, ultrasound and hormonal markers of androgenicity in acne vulgaris
Acne severity is linked to higher levels of certain androgenic hormones, even when those levels are within the normal range.
research A practical guide for the study of human and murine sebaceous glands in situ
The guide explains how to study human and mouse sebaceous glands using various staining and imaging techniques, and emphasizes the need for standardized assessment methods.
research Elevated Free Testosterone Levels in Women With Acne
Some women with acne have higher levels of free testosterone, which might suggest using hormonal treatments for acne.
research Male androgenetic alopecia
DHT, a testosterone byproduct, causes male pattern baldness.
research Female Hirsutism: Pathophysiological Considerations and Therapeutic Implications*
Excessive hair growth in women often has no known cause and is not linked to race or other hormonal symptoms.
research Perifollicular Fibrosis: Pathogenetic Role in Androgenetic Alopecia
Androgen hormones cause hair follicle scarring in hair loss, and finasteride helps reduce it.
research To grow or not to grow: Hair morphogenesis and human genetic hair disorders
Genetic mutations can cause hair growth disorders by affecting key genes and signaling pathways.
research Evidence-based approach to cutaneous hyperandrogenism in women
The conclusion is that oral contraceptives and antiandrogens can treat hirsutism and acne in women with cutaneous hyperandrogenism, but more research is needed for effective treatments, especially for hair loss.
research Differences in Expression of Specific Biomarkers Distinguish Human Beard from Scalp Dermal Papilla Cells
Beard and scalp hair cells have different gene expressions, which may affect beard growth characteristics.
research 5α-Reductase activity in the human hair follicle concentrates in the dermal papilla
The enzyme that changes testosterone to a stronger form is mostly found in the part of the hair follicle called the dermal papilla.
research Androgens Affect the Activity of Human Sebocytes in Culture in a Manner Dependent on the Localization of the Sebaceous Glands and Their Effect Is Antagonized by Spironolactone
Male hormones affect oil-producing skin cells differently based on their body location, and the drug spironolactone can reduce these effects.
research Understanding and Addressing Hair Disorders in Transgender Individuals
Hormone therapy affects hair growth in transgender individuals, with testosterone potentially causing hair loss in trans men and estrogen reducing facial/body hair in trans women; treatment options vary.
research Steroidogenic Isoenzymes in Human Hair and Their Potential Role in Androgenetic Alopecia
Steroidogenic isoenzymes may help improve treatments for common hair loss.
research Pharmacologic Modulation of Sebaceous Gland Activity: Mechanisms and Clinical Applications
The document concludes that new treatments are needed to better manage acne and reduce side effects related to current therapies.
research Biallelic HEPHL1 variants impair ferroxidase activity and cause an abnormal hair phenotype
Mutations in the HEPHL1 gene cause abnormal hair and cognitive issues.
research Human androgenic steroids affect growth of dermatophytes in vitro
Androgenic steroids can slow down or stop the growth of certain skin fungi.
research Contraceptive use in acne
Hormonal contraceptives can help treat acne by affecting sebum production and androgen levels.
research Androgens modulate keratinocyte differentiation indirectly through enhancing growth factor production from dermal fibroblasts
Male hormones indirectly affect skin cell development by increasing growth factor levels from skin fibroblasts.
research The G60S Connexin43 Mutant Regulates Hair Growth and Hair Fiber Morphology in a Mouse Model of Human Oculodentodigital Dysplasia
The G60S Connexin43 mutation causes hair growth issues and poor hair quality in mice, similar to human ODDD patients.
research The 5alpha-reductase type 1, but not type 2, gene is expressed in anagen hairs plucked from the vertex area of the scalp of hirsute women and normal individuals
The gene SDR5A1 is found in scalp hair of both hirsute and normal individuals, but it does not explain differences in hair growth.
research Hair shaft abnormalities after chemotherapy and tamoxifen therapy in patients with breast cancer evaluated by optical coherence tomography
Chemotherapy can cause significant hair thinning and changes in hair texture, while tamoxifen has a smaller effect.
research Is the metabolism of testosterone to 5α-dihydrotestosterone required for androgen action in the skin?
Testosterone conversion to 5α-DHT may not be essential for its effects on the skin.
research Cicatricial (scarring) alopecia
Different types of scarring alopecia may be stages of one disease, and accurate diagnosis is crucial to prevent permanent hair loss.
research Activity of type 1 5α-reductase is greater in the follicular infrainfundibulum compared with the epidermis
The enzyme type 1 5α-reductase is more active in the hair follicle's lower part than in the skin's outer layer.
research Clinical review 74: Dermatological manifestations of endocrine disorders.
Skin changes can indicate hormonal imbalances and help diagnose endocrine disorders.
research Effects of hormonal treatment on dermatological outcome in transgender people: a multicentric prospective study (ENIGI)
Hormonal treatments can change hair and skin in transgender people, but may not fully achieve desired results.