research New approach to 3-oxo-4-aza-5α-androst-1-ene-17β-(--butylcarboxamide)
A new method was developed to make finasteride for treating hair loss.
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research Metabolic study of androsta-1,4,6-triene-3,17-dione in horses using liquid chromatography/high resolution mass spectrometry
The study found that urine metabolites M1b or M4 are the best indicators of ATD use in horses, with detection possible up to 77 hours in urine and 28 hours in blood.
research Overexpression of aldo-keto reductase 1C3 (AKR1C3) in LNCaP cells diverts androgen metabolism towards testosterone resulting in resistance to the 5α-reductase inhibitor finasteride
Too much AKR1C3 enzyme causes resistance to finasteride by increasing testosterone.
research In vitro and In vivo Effects of 17β-N-(4-phenylcarbamoyl) androst-4-en-3- one Derivatives as 5a-reductase Inhibitors on Androgen-dependent Glands
Three compounds were found to inhibit a prostate disease-related enzyme and reduce prostate size more effectively than the current treatment, suggesting they could be used for treating benign prostatic hyperplasia.
research Altered Hormone and Bioactive Lipid Plasma Profile in Rodent Models of Polycystic Ovarian Syndrome Revealed by Targeted Mass Spectrometry
Rodent models of PCOS show some hormone changes similar to humans, but also have key differences.
research Human type 3 5α-reductase is expressed in peripheral tissues at higher levels than types 1 and 2 and its activity is potently inhibited by finasteride and dutasteride
Type 3 5α-reductase is more common and finasteride and dutasteride strongly inhibit it.
![Synthesis and In Vitro Study of 17β-[N-Ureylene-N,N′-Disubstituted]-4-Methyl-4-Aza-5α-Androstan-3-Ones as Selective Inhibitors of Type I 5α-Reductase](/images/research/d19df8a7-8de6-4430-8a0d-4ffa1f502985/small/15608.jpg)
research Synthesis and in vitro study of 17β-[N-ureylene-N,N′-disubstituted]-4-methyl-4-aza-5α-androstan-3-ones as selective inhibitors of type I 5α-reductase
New compounds were made that effectively block a specific enzyme related to androgen conditions.
research An improved synthesis of finasteride from 4-androsten-3,17-dione
The new method makes finasteride cheaper and easier to produce.
research Azasteroids as inhibitors of testosterone 5α-reductase in mammalian skin
Certain 4-azasteroids are effective at blocking the enzyme that processes testosterone in human skin and could help treat acne, excessive hair growth, and male pattern baldness.
research Hair loss and herbs for treatment
Herbs can potentially treat hair loss by inhibiting a key enzyme and promoting hair growth, and deficiencies in zinc, biotin, and iron are linked to hair loss.
research PLASMA C19 STEROID SULPHATE LEVELS AND INDICES OF ANDROGEN BIOAVAILABILITY IN FEMALE PATTERN ANDROGENIC ALOPECIA
Women with female pattern hair loss have higher levels of certain androgens, suggesting increased androgen exposure to hair follicles.
research Immunohistochemical localization of types 1 and 2 5α-reductase in human scalp
The study found that two enzymes linked to hair loss are located in different parts of the scalp, supporting a common treatment's effectiveness.
research Steroid Sulfatase in the Human Hair Follicle Concentrates in the Dermal Papilla
Steroid sulfatase in hair follicles may be a target for treating hair loss.
research Androgenic effect of testosterone and some of its metabolites in relation to their biotransformation in the skin.
Testosterone and some of its forms can strongly stimulate oil gland growth in skin.
research Androgen binding profiles of two distinct nuclear androgen receptors in Atlantic croaker (Micropogonias undulatus)
Different types of androgens bind differently to two receptors, AR1 and AR2, in Atlantic croaker's brain and ovarian tissues, suggesting these receptors may control different androgen actions in fish.
research Intracrinology and The Skin
DHEA stimulates skin oil glands and could help postmenopausal women, with potential for acne and excessive hair growth treatments.
research Linking diet to acne metabolomics, inflammation, and comedogenesis: an update
Eating less sugar, milk, and saturated fats and more vegetables and fish may help treat and prevent acne.
research Adrenal steroid precursors exert potent androgenic action in the hamster sebaceous glands of flank organs and ears.
Certain adrenal hormones can strongly stimulate oil gland growth in hamster skin, similar to male hormones.
research Exclusive androgenic effect of dehydroepiandrosterone in sebaceous glands of rat skin
DHEA acts like a male hormone on rat skin glands and doesn't turn into female hormones there.
research Elevated serum androstenedione is associated with a more severe phenotype in women with polycystic ovary syndrome (PCOS)
Higher androstenedione levels in women with PCOS are linked to more severe symptoms.
research An isotope dilution-liquid chromatography-tandem mass spectrometry-based candidate reference measurement procedure for the quantification of dehydroepiandrosterone sulfate in human serum and plasma
A new method accurately measures DHEAS in blood, improving on current tests.
research Diagnostic Criteria for Polycystic Ovarian Syndrome
To diagnose Polycystic Ovarian Syndrome, two out of three signs—irregular periods, high male hormone levels, or cysts on the ovaries—are needed.
research Serum AMH levels in the differential diagnosis of hyperandrogenemic conditions
Blood AMH levels are higher in women with PCOS than in those with other similar conditions.
research Thiohydrazides in the Synthesis of Functionalized Extranuclear Heterosteroids
New steroid derivatives show promise as anticancer agents, even against resistant cells.
research Rat steroid 5α-reductase kinetic characteristics: Extreme pH-dependency of the type II isozyme in prostate and epididymis homogenates
The activity of a specific rat enzyme in the prostate and epididymis is highly dependent on the acidity level.
research FINASTERIDE INHIBITS 5?-REDUCTASE ACTIVITY IN HUMAN DERMAL FIBROBLASTS: PREDICTION OF ITS THERAPEUTIC APPLICATION IN ANDROGEN-RELATED SKIN DISEASES
Finasteride helps treat skin issues like acne and baldness by blocking testosterone conversion.
research Different Levels of 5α-Reductase Type I and II, Aromatase, and Androgen Receptor in Hair Follicles of Women and Men with Androgenetic Alopecia
People with hair loss have more androgen receptors and enzymes in certain follicles, with men and women showing different patterns.
research Steroid 5α-Reductase as a Novel Therapeutic Target for Schizophrenia and Other Neuropsychiatric Disorders
S5αR inhibitors might help treat schizophrenia and other mental disorders but need more research.
research Proscar@ (Finasteride) inhibits 5α-reductase activity in the ovaries and testes of Lytechinus variegatus Lamarck (Echinodermata: Echinoidea)
Proscar (finasteride) blocks 5α-reductase in sea urchin ovaries and testes, suggesting potential treatment for androgen-related conditions.
research Finasteride: A slow-binding 5.alpha.-reductase inhibitor
Finasteride slowly binds to 5-alpha-reductase, affecting enzyme stability and inhibitor potency.