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RU-22930
RU-22930 is a nonsteroidal antiandrogen (NSAA) related to the NSAAs flutamide and nilutamide (RU-23908) and was developed by Roussel Uclaf but was never marketed. It is a selective antagonist of the androgen receptor and consequently has progonadotropic effects by increasing gonadotropin and testosterone levels via disinhibition of the hypothalamic-pituitary-gonadal axis. Unlike flutamide and nilutamide, the drug is said to be short-acting and inactive by injection, but it has been found to be active topically in animals, and hence could be useful for the treatment of androgen-dependent skin condition A skin condition, also known as cutaneous condition, is any medical condition that affects the integumentary system—the organ system that encloses the body and includes skin, nails, and related muscle and glands. The major function of this s ...s. See also * RU-58642 * RU-58841 References Abandoned drugs Nitro compounds Nonsteroidal antiandrogens Trifluoromet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nonsteroidal Antiandrogen
A nonsteroidal antiandrogen (NSAA) is an antiandrogen with a nonsteroidal chemical structure. They are typically selective and full or silent antagonists of the androgen receptor (AR) and act by directly blocking the effects of androgens like testosterone and dihydrotestosterone (DHT). NSAAs are used in the treatment of androgen-dependent conditions in men and women. They are the converse of steroidal antiandrogens (SAAs), which are antiandrogens that are steroids and are structurally related to testosterone. Medical uses NSAAs are used in clinical medicine for the following indications: * Prostate cancer in men * Androgen-dependent skin and hair conditions like acne, hirsutism, seborrhea, and pattern hair loss (androgenic alopecia) in women * Hyperandrogenism, such as due to polycystic ovary syndrome or congenital adrenal hyperplasia, in women * As a component of hormone therapy for transgender women * Precocious puberty in boys * Priapism in men Available forms Pha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitro Compounds
In organic chemistry, nitro compounds are organic compounds that contain one or more nitro functional groups (). The nitro group is one of the most common explosophores (functional group that makes a compound explosive) used globally. The nitro group is also strongly electron-withdrawing. Because of this property, bonds alpha (adjacent) to the nitro group can be acidic. For similar reasons, the presence of nitro groups in aromatic compounds retards electrophilic aromatic substitution but facilitates nucleophilic aromatic substitution. Nitro groups are rarely found in nature. They are almost invariably produced by nitration reactions starting with nitric acid. Synthesis Preparation of aromatic nitro compounds Aromatic nitro compounds are typically synthesized by nitration. Nitration is achieved using a mixture of nitric acid and sulfuric acid, which produce the nitronium ion (), which is the electrophile: + The nitration product produced on the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abandoned Drugs
Abandon, abandoned, or abandonment may refer to: Common uses * Abandonment (emotional), a subjective emotional state in which people feel undesired, left behind, insecure, or discarded * Abandonment (legal), a legal term regarding property ** Child abandonment, the extralegal abandonment of children ** Lost, mislaid, and abandoned property, legal status of property after abandonment and rediscovery * Abandonment (mysticism) Art, entertainment, and media Film * ''Abandon'' (film), a 2002 film starring Katie Holmes * ''Abandoned'' (1949 film), starring Dennis O'Keefe * ''Abandoned'' (1955 film), the English language title of the Italian war film ''Gli Sbandati'' * ''Abandoned'' (2001 film), a Hungarian film * ''Abandoned'' (2010 film), starring Brittany Murphy * ''Abandoned'' (2015 film), a television movie about the shipwreck of the ''Rose-Noëlle'' in 1989 * ''Abandoned'' (2022 film), starring Emma Roberts * ''The Abandoned'' (1945 film), a 1945 Mexican film * ''The A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RU-58841
__NOTOC__ RU-58841, also known as PSK-3841 or HMR-3841, is a nonsteroidal antiandrogen (NSAA) which was initially developed in the 1980s by Roussel Uclaf, the French pharmaceutical company from which it received its name. It was formerly under investigation by ProStrakan (previously ProSkelia and Strakan) for potential use as a topical treatment for androgen-dependent conditions including acne, pattern hair loss, and excessive hair growth. The compound is similar in structure to the NSAA RU-58642 but contains a different side-chain. These compounds are similar in chemical structure to nilutamide, which is related to flutamide, bicalutamide, and enzalutamide, all of which are NSAAs similarly. RU-58841 can be synthesized either by building the hydantoin moiety or by aryl coupling to 5,5-dimethylhydantoin. RU-58841 produces cyanonilutamide (RU-56279) and RU-59416 as metabolites in animals. Cyanonilutamide has relatively low affinity for the androgen receptor but shows signifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RU-58642
RU-58642 is a nonsteroidal antiandrogen (NSAA) derived from nilutamide with very high affinity and selectivity for the androgen receptor (AR), which made it among the most potent and efficacious antiandrogens known at the time of its discovery. It was investigated for topical application for the treatment of androgenetic alopecia (male-pattern baldness), but development did not proceed past initial trial stages, and it is now only used for scientific research into the AR. See also * Cyanonilutamide * RU-56187 * RU-57073 * RU-58841 __NOTOC__ RU-58841, also known as PSK-3841 or HMR-3841, is a nonsteroidal antiandrogen (NSAA) which was initially developed in the 1980s by Roussel Uclaf, the French pharmaceutical company from which it received its name. It was formerly under in ... * RU-59063 References Abandoned drugs Hydantoins Nitriles Nonsteroidal antiandrogens Trifluoromethyl compounds {{dermatologic-drug-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skin Condition
A skin condition, also known as cutaneous condition, is any medical condition that affects the integumentary system—the organ system that encloses the body and includes skin, nails, and related muscle and glands. The major function of this system is as a barrier against the external environment. Conditions of the human integumentary system constitute a broad spectrum of diseases, also known as dermatoses, as well as many nonpathologic states (like, in certain circumstances, melanonychia and racquet nails). While only a small number of skin diseases account for most visits to the physician, thousands of skin conditions have been described. Classification of these conditions often presents many nosological challenges, since underlying causes and pathogenetics are often not known. Therefore, most current textbooks present a classification based on location (for example, conditions of the mucous membrane), morphology ( chronic blistering conditions), cause ( skin conditions res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Androgen-dependent Condition
An androgen-dependent condition, disease, disorder, or syndrome, is a medical condition that is, in part or full, dependent on, or is sensitive to, the presence of androgenic activity in the body. Known androgen-dependent conditions include acne, seborrhea, androgenic alopecia, hirsutism, hidradenitis suppurativa, precocious puberty in boys, hypersexuality, paraphilias, benign prostatic hyperplasia (BPH), prostate cancer, and hyperandrogenism in women such as in polycystic ovary syndrome (PCOS), congenital adrenal hyperplasia (CAH), and androgen-secreting tumors ( gonadal or adrenal tumor). Such conditions may be treated with drugs with antiandrogen actions, including androgen receptor antagonists such as cyproterone acetate, spironolactone, and bicalutamide, 5α-reductase inhibitors such as finasteride and dutasteride, CYP17A1 inhibitors such as abiraterone acetate, gonadotropin-releasing hormone (GnRH) analogues such as leuprorelin and cetrorelix, and/or other antigonadotropins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topical Medication
A topical medication is a medication that is applied to a particular place on or in the body. Most often topical medication means application to body surfaces such as the skin or mucous membranes to treat ailments via a large range of classes including creams, foams, gels, lotions, and ointments. Many topical medications are epicutaneous, meaning that they are applied directly to the skin. Topical medications may also be inhalational, such as asthma medications, or applied to the surface of tissues other than the skin, such as eye drops applied to the conjunctiva, or ear drops placed in the ear, or medications applied to the surface of a tooth. The word ''topical'' derives from Greek τοπικός ''topikos'', "of a place". Justification Topical drug delivery is a route of administering drugs via the skin to provide topical therapeutic effects. As skin is one of the largest and most superficial organs in the human body, pharmacists utilise it to deliver various dr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Injection (medicine)
An injection (often and usually referred to as a "shot" in US English, a "jab" in UK English, or a "jag" in Scottish English and Scots) is the act of administering a liquid, especially a drug, into a person's body using a needle (usually a hypodermic needle) and a syringe. An injection is considered a form of parenteral drug administration; it does not involve absorption in the digestive tract. This allows the medication to be absorbed more rapidly and avoid the first pass effect. There are many types of injection, which are generally named after the body tissue the injection is administered into. This includes common injections such as subcutaneous, intramuscular, and intravenous injections, as well as less common injections such as intraperitoneal, intraosseous, intracardiac, intraarticular, and intracavernous injections. Injections are among the most common health care procedures, with at least 16 billion administered in developing and transitional countries each y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Testosterone
Testosterone is the primary sex hormone and anabolic steroid in males. In humans, testosterone plays a key role in the development of male reproductive tissues such as testes and prostate, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of body hair. In addition, testosterone in both sexes is involved in health and well-being, including moods, behaviour, and in the prevention of osteoporosis. Insufficient levels of testosterone in men may lead to abnormalities including frailty and bone loss. Testosterone is a steroid from the androstane class containing a ketone and a hydroxyl group at positions three and seventeen respectively. It is biosynthesized in several steps from cholesterol and is converted in the liver to inactive metabolites. It exerts its action through binding to and activation of the androgen receptor. In humans and most other vertebrates, testosterone is secreted primarily by the testicles of m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nonsteroidal Antiandrogen
A nonsteroidal antiandrogen (NSAA) is an antiandrogen with a nonsteroidal chemical structure. They are typically selective and full or silent antagonists of the androgen receptor (AR) and act by directly blocking the effects of androgens like testosterone and dihydrotestosterone (DHT). NSAAs are used in the treatment of androgen-dependent conditions in men and women. They are the converse of steroidal antiandrogens (SAAs), which are antiandrogens that are steroids and are structurally related to testosterone. Medical uses NSAAs are used in clinical medicine for the following indications: * Prostate cancer in men * Androgen-dependent skin and hair conditions like acne, hirsutism, seborrhea, and pattern hair loss (androgenic alopecia) in women * Hyperandrogenism, such as due to polycystic ovary syndrome or congenital adrenal hyperplasia, in women * As a component of hormone therapy for transgender women * Precocious puberty in boys * Priapism in men Available forms Pha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
