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5α-Dihydronandrolone
5α-Dihydronandrolone (also known as 5α-DHN, dihydronandrolone, DHN, 5α-dihydro-19-nortestosterone, or 5α-estran-17β-ol-3-one) is a natural product, naturally occurring anabolic–androgenic steroid (AAS) and a 5α-reductase, 5α-reduced chemical derivative, derivative of nandrolone (19-nortestosterone). It is a major metabolite of nandrolone and is formed from it by the actions of the enzyme 5α-reductase analogously to the formation of dihydrotestosterone (DHT) from testosterone. When testosterone is 5α-reduced into DHT, which is a much more potent AAS in comparison, its effects are potentiated on a local level. The tissues in which this occurs (i.e., the tissues that express 5α-reductase) are referred to as "androgenic" tissues and include the skin, hair follicles, and prostate gland, among others. The conversion of testosterone into DHT is an important factor in the etiology of a variety of androgen-dependent conditions, including acne, hirsutism, excessive facial/body h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nandrolone
Nandrolone, also known as 19-nortestosterone, is an endogenous androgen. It is also an anabolic steroid (AAS) which is medically used in the form of esters such as nandrolone decanoate (brand name Deca-Durabolin) and nandrolone phenylpropionate (brand name Durabolin). Nandrolone esters are used in the treatment of anemias, cachexia (Skeletal muscle, muscle wasting syndrome), osteoporosis, breast cancer, and for other indications. They are now used by oral administration or instead are given by intramuscular injection, injection into muscle or subcutaneous injection, fat. Side effects of nandrolone esters include symptoms of virilization, masculinization like acne, hirsutism, increased hair growth, and voice deepening, voice changes. They are synthetic compound, synthetic androgens and anabolic steroids and hence are agonists of the androgen receptor (AR), the biological target of androgens like testosterone and dihydrotestosterone (DHT). Nandrolone has strong anabolic effects an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
5α-Dihydrolevonorgestrel
5α-Dihydrolevonorgestrel (5α-DHLNG) is an active metabolite of the progestin levonorgestrel which is formed by 5α-reductase. It has about one-third of the affinity of levonorgestrel for the progesterone receptor. In contrast to levonorgestrel, the compound has both progestogenic and antiprogestogenic activity, and hence has a selective progesterone receptor modulator-like profile of activity. This is analogous to the case of norethisterone and 5α-dihydronorethisterone. In addition to the progesterone receptor, 5α-DHLNG interacts with the androgen receptor. It has similar affinity for the androgen receptor relative to levonorgestrel (34.3% of that of metribolone for levonorgestrel and 38.0% of that of metribolone for 5α-DHLNG), and has androgenic effects similarly to levonorgestrel and testosterone. 5α-DHLNG is further transformed into 3α,5α- and 3β,5α-, which bind weakly to the estrogen receptor (0.4 to 2.4% of the of ) and have weak estrogenic activity. These meta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19-Noretiocholanolone
19-Noretiocholanolone, also known as 5β-estran-3α-ol-17-one, is a metabolite of nandrolone (19-nortestosterone) and bolandione (19-norandrostenedione) that is formed by 5α-reductase. It is on the list of substances prohibited by the World Anti-Doping Agency since it is a detectable metabolite of nandrolone, an anabolic-androgenic steroid (AAS). Consumption of boar meat, liver, kidneys and heart have been found to increase urinary 19-noretiocholanolone output. See also * Etiocholanolone * 19-Norandrosterone * 5α-Dihydronandrolone 5α-Dihydronandrolone (also known as 5α-DHN, dihydronandrolone, DHN, 5α-dihydro-19-nortestosterone, or 5α-estran-17β-ol-3-one) is a natural product, naturally occurring anabolic–androgenic steroid (AAS) and a 5α-reductase, 5α-reduced chem ... * 5α-Dihydronorethisterone References 5α-Reduced steroid metabolites Secondary alcohols Estranes Human drug metabolites Ketones World Anti-Doping Agency prohibited substances {{p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benign Prostatic Hyperplasia
Benign prostatic hyperplasia (BPH), also called prostate enlargement, is a noncancerous increase in size of the prostate gland. Symptoms may include frequent urination, trouble starting to urinate, weak stream, urinary retention, inability to urinate, or urinary incontinence, loss of bladder control. Complications can include urinary tract infections, bladder stones, and chronic kidney problems. The cause is unclear. Risk factors include a family history, obesity, type 2 diabetes, not enough exercise, and erectile dysfunction. Medications like pseudoephedrine, anticholinergics, and calcium channel blockers may worsen symptoms. The underlying mechanism involves the prostate pressing on the urethra thereby making it difficult to pass urine out of the bladder. Diagnosis is typically based on symptoms and Physical examination, examination after ruling out other possible causes. Treatment options include lifestyle changes, medications, a number of procedures, and surgery. In th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
5α-Dihydronorethandrolone
5α-Dihydronorethandrolone (5α-DHNED), also known as 17α-ethyl-4,5α-dihydro-19-nortestosterone or as 17α-ethyl-5α-estran-17β-ol-3-one, is an androgen/anabolic steroid and a metabolite of norethandrolone (as well as of the prodrug ethylestrenol) formed by 5α-reductase. Analogously to nandrolone and its 5α-reduced metabolite 5α-dihydronandrolone, 5α-DHNED shows reduced affinity for the androgen receptor relative to norethandrolone. Its affinity for the androgen receptor is specifically about 64% of that of norethandrolone. See also * 5α-Dihydronormethandrone * 5α-Dihydronorethisterone * 5α-Dihydrolevonorgestrel 5α-Dihydrolevonorgestrel (5α-DHLNG) is an active metabolite of the progestin levonorgestrel which is formed by 5α-reductase. It has about one-third of the affinity of levonorgestrel for the progesterone receptor. In contrast to levonorgestrel ... * Ethylestradiol References {{DEFAULTSORT:Dihydronorethandrolone, 5α- 5α-Reduced steroid met ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Side Effect
In medicine, a side effect is an effect of the use of a medicinal drug or other treatment, usually adverse but sometimes beneficial, that is unintended. Herbal and traditional medicines also have side effects. A drug or procedure usually used for a specific effect may be used specifically because of a beneficial side-effect; this is termed " off-label use" until such use is approved. For instance, X-rays have long been used as an imaging technique; the discovery of their oncolytic capability led to their use in radiotherapy for ablation of malignant tumours. Frequency of side effects The World Health Organization and other health organisations characterise the probability of experiencing side effects as: * Very common, ≥ 1⁄10 * Common (frequent), 1⁄10 to 1⁄100 * Uncommon (infrequent), 1⁄100 to 1⁄1000 * Rare, 1⁄1000 to 1⁄10000 * Very rare, < 1⁄10000 The |
Dutasteride
Dutasteride, sold under the brand name Avodart among others, is a medication primarily used to treat the symptoms of a benign prostatic hyperplasia (BPH), an enlarged prostate not associated with cancer. A few months may be required before benefits occur. It is also used for pattern hair loss, scalp hair loss in men and as a part of transgender hormone therapy (male-to-female), hormone therapy in transgender women. It is usually taken by mouth. The most commonly reported side effects of dutasteride, although rare, include sexual dysfunction and depression (mood), depression. In the largest available study of 6,729 men with BPH, 9% experienced erectile dysfunction (compared to 5.7% treated with a placebo), 3.3% experienced decreased libido, sex drive (vs 1.6% of placebo), and 1.9% had gynecomastia, enlarged breasts (vs 1% of placebo). Exposure during pregnancy is specifically contraindicated because antiandrogens such as dutasteride have been shown to interfere with the sexual d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finasteride
Finasteride, sold under the brand names Proscar and Propecia among others, is a medication used to treat pattern hair loss and benign prostatic hyperplasia (BPH) in men. It can also be used to treat hirsutism, excessive hair growth in women. It is usually taken oral administration, orally but there are Topical medication, topical formulations for patients with hair loss, designed to minimize systemic exposure by acting specifically on hair follicles. Finasteride is a 5α-reductase inhibitor and therefore an antiandrogen. It works by enzyme inhibitor, decreasing the biosynthesis, production of dihydrotestosterone (DHT) by about 70%. In addition to DHT, finasteride also inhibits the production of several anticonvulsant neurosteroids including allopregnanolone, androstanediol, and tetrahydrodeoxycorticosterone. Adverse effects from finasteride are rare in men with already enlarged prostates; however, some men experience sexual dysfunction, depression (mood), depression, and gyne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Androgen
An androgen (from Greek ''andr-'', the stem of the word meaning ) is any natural or synthetic steroid hormone that regulates the development and maintenance of male characteristics in vertebrates by binding to androgen receptors. This includes the embryological development of the primary male sex organs, and the development of male secondary sex characteristics at puberty. Androgens are synthesized in the testes, the ovaries, and the adrenal glands. Androgens increase in both males and females during puberty. The major androgen in males is testosterone. Dihydrotestosterone (DHT) and androstenedione are of equal importance in male development. DHT ''in utero'' causes differentiation of the penis, scrotum and prostate. In adulthood, DHT contributes to balding, prostate growth, and sebaceous gland activity. Although androgens are commonly thought of only as male Sex steroids, sex hormones, females also have them, but at lower levels: they function in libido and sexual arousal. An ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
