|
Ticlopidine
Ticlopidine, sold under the brand name Ticlid, is a medication used to reduce the risk of thrombotic strokes. It is an antiplatelet drug in the thienopyridine family which is an adenosine diphosphate (ADP) receptor inhibitor. Research initially showed that it was useful for preventing strokes and coronary stent occlusions. However, because of its rare but serious side effects of neutropenia and thrombotic microangiopathy it was primarily used in patients in whom aspirin was not tolerated, or in whom dual antiplatelet therapy was desirable. With the advent of newer and safer antiplatelet drugs such as clopidogrel and ticagrelor, its use remained limited. It was patented in 1973 and approved for medical use in 1978. Medical uses Ticlopidine is indicated for the prevention of strokes and when combined with aspirin, for people with a new coronary stent to prevent closure. Stroke Ticlopidine is considered a second-line option for the prevention of thrombotic strokes among p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CYP2D6 Inhibitors
Cytochrome P450 2D6 (CYP2D6) is an enzyme that in humans is encoded by the ''CYP2D6'' gene. ''CYP2D6'' is primarily expressed in the liver. It is also highly expressed in areas of the central nervous system, including the substantia nigra. CYP2D6, a member of the cytochrome P450 mixed-function oxidase system, is one of the most important enzymes involved in the metabolism of xenobiotics in the body. In particular, CYP2D6 is responsible for the metabolism and elimination of approximately 25% of clinically used drugs, via the addition or removal of certain functional groups – specifically, hydroxylation, demethylation, and dealkylation. CYP2D6 also activates some prodrugs. This enzyme also metabolizes several endogenous substances, such as N,N-Dimethyltryptamine, hydroxytryptamines, neurosteroids, and both ''m''-tyramine and ''p''-tyramine which CYP2D6 metabolizes into dopamine in the brain and liver. Considerable variation exists in the efficiency and amount of C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thienopyridine
Thienopyridines are a class of selective, irreversible ADP receptor/P2Y12 inhibitors used for their anti-platelet activity. They have a significant role in the management of cardiovascular disease. Clinical Uses They are used in the management of peripheral artery disease, as well as the prevention of coronary stent thrombosis and strokes. Examples Drugs in this class include: clopidogrel (Plavix), prasugrel (Effient), and ticlopidine (Ticlid). Tinoridine was actually a predecessor to this work. Alternatives Ticagrelor (Brilinta) is often listed with thienopyridine inhibitors and has similar indications for use but is not a thienopyridine. It is a cyclo-pentyltriazolo-pyrimidine that is distinct from the mechanism of the thienopyridines in that it reversibly (rather than irreversibly) inhibits the P2Y12, P2Y12 receptor. References Thienopyridines, {{Blood-drug-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ticagrelor
Ticagrelor, sold under the brand name Brilinta among others, is a medication used for the prevention of stroke, heart attack and other events in people with acute coronary syndrome, meaning problems with blood supply in the coronary arteries. It acts as a platelet aggregation inhibitor by antagonising the P2Y12 receptor. The drug is produced by AstraZeneca. The most common side effects include dyspnea (difficulty breathing), bleeding and raised uric acid level in the blood. It was approved for medical use in the European Union in December 2010, and in the United States in July 2011. In 2022, it was the 203rd most commonly prescribed medication in the United States, with more than 2million prescriptions. Medical uses In the US, ticagrelor is indicated to reduce the risk of stroke in people with acute ischemic stroke or high-risk transient ischemic attack. In the EU, ticagrelor, co-administered with acetylsalicylic acid (aspirin), is indicated for the prevention of atherothro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ADP Receptor
P2Y receptors are a family of purinergic G protein-coupled receptors, stimulated by nucleotides such as adenosine triphosphate, adenosine diphosphate, uridine triphosphate, uridine diphosphate and UDP-glucose.To date, 8 P2Y receptors have been cloned in humans: P2Y1, P2Y2, P2Y4, P2Y6, P2Y11, P2Y12, P2Y13 and P2Y14. P2Y receptors are present in almost all human tissues where they exert various biological functions based on their G-protein coupling. P2Y receptors mediate responses including vasodilation, blood clotting, and immune response. Due to their ubiquity and variety in function, they are a common biological target in pharmacological development. Structure P2Y receptors are membrane proteins belonging to the class A family of G protein-coupled receptors (GPCRs). P2Y receptor proteins display large-scale structural domains typical of GPCRs, consisting of seven hydrophobic transmembrane helices connected by three short extracellular loops and three variably siz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adenosine Diphosphate Receptor Inhibitors
Adenosine (symbol A) is an organic compound that occurs widely in nature in the form of diverse derivatives. The molecule consists of an adenine attached to a ribose via a β-N9-glycosidic bond. Adenosine is one of the four nucleoside building blocks of RNA (and its derivative deoxyadenosine is a building block of DNA), which are essential for all life on Earth. Its derivatives include the energy carriers adenosine mono-, di-, and triphosphate, also known as AMP/ADP/ATP. Cyclic adenosine monophosphate (cAMP) is pervasive in signal transduction. Adenosine is used as an intravenous medication for some cardiac arrhythmias. Adenosyl (abbreviated Ado or 5'-dAdo) is the chemical group formed by removal of the 5′-hydroxy (OH) group. It is found in adenosylcobalamin (an active form of vitamin B12) and as a radical in the radical SAM enzymes. Medical uses Supraventricular tachycardia In individuals with supraventricular tachycardia (SVT), adenosine is a first line treatment used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The New York Times
''The New York Times'' (''NYT'') is an American daily newspaper based in New York City. ''The New York Times'' covers domestic, national, and international news, and publishes opinion pieces, investigative reports, and reviews. As one of the longest-running newspapers in the United States, the ''Times'' serves as one of the country's Newspaper of record, newspapers of record. , ''The New York Times'' had 9.13 million total and 8.83 million online subscribers, both by significant margins the List of newspapers in the United States, highest numbers for any newspaper in the United States; the total also included 296,330 print subscribers, making the ''Times'' the second-largest newspaper by print circulation in the United States, following ''The Wall Street Journal'', also based in New York City. ''The New York Times'' is published by the New York Times Company; since 1896, the company has been chaired by the Ochs-Sulzberger family, whose current chairman and the paper's publ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoffmann-La Roche
F. Hoffmann-La Roche AG, commonly known as Roche (), is a Swiss multinational holding healthcare company that operates worldwide under two divisions: Pharmaceuticals and Diagnostics. Its holding company, Roche Holding AG, has shares listed on the SIX Swiss Exchange. The company headquarters are located in Basel. Roche is the fifth-largest pharmaceutical company in the world by revenue and the leading provider of cancer treatments globally. In 2023, the company’s seat in Forbes Global 2000 was 76. The company owns the American biotechnology company Genentech, which is a wholly owned independent subsidiary, and the Japanese biotechnology company Chugai Pharmaceuticals, as well as the United States–based companies Ventana and Foundation Medicine. Roche's revenues during fiscal year 2020, were 58.32 billion Swiss francs. Descendants of the founding Hoffmann and Oeri families own slightly over half of the bearer shares with voting rights (a pool of family shareholders 45%, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syntex
Laboratorios Syntex SA (later Syntex Laboratories, Inc.) was a pharmaceutical company formed in Mexico City in January 1944 by Russell Marker, Emeric Somlo, and Federico Lehmann to manufacture therapeutic steroids from the Mexican yams called ''cabeza de negro'' ('' Dioscorea mexicana'') and ''Barbasco'' ('' Dioscorea composita''). The demand for barbasco by Syntex initiated the Mexican barbasco trade. As the American Chemistry Society later explained: “In early 1944, the new Mexican company was chartered and named Syntex, S.A. (‘Synthesis and Mexico’). Russell Marker, shortly thereafter, left Syntex on account of his ruthless cofounder. Luis E. Miramontes, George Rosenkranz and Carl Djerassi's successful synthesis of norethisterone (also known as norethindrone) — which was later proven to be an effective pregnancy inhibitor — led to an infusion of capital into Syntex and the Mexican steroid pharmaceutical industry. George Rosenkranz and Carl Djerassi went on to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sanofi
Sanofi S.A. is a French Multinational corporation, multinational pharmaceutical and healthcare company headquartered in Paris, France. The corporation was established in 1973 and merged with Synthélabo in 1999 to form Sanofi-Synthélabo. In 2004, Sanofi-Synthélabo merged with Aventis and renamed to Sanofi-Aventis, which were each the product of several previous mergers. It changed its name back to Sanofi in May 2011. The company trades as "SAN" on Euronext Paris and "SNY" on Nasdaq in the United States, and is a component of the Euro Stoxx 50 stock market index. In 2023, the company’s seat in Forbes Global 2000 was 89. Sanofi engages in the research and development, manufacturing, and marketing of pharmacological products, principally in the prescription market, but the firm also develops Over-the-counter drug, over-the-counter medications. The corporation covers seven major therapeutic areas: Circulatory system, cardiovascular, central nervous system, diabetes, internal medi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drug Discovery
In the fields of medicine, biotechnology, and pharmacology, drug discovery is the process by which new candidate medications are discovered. Historically, drugs were discovered by identifying the active ingredient from traditional remedies or by serendipitous discovery, as with penicillin. More recently, chemical libraries of synthetic small molecules, natural products, or extracts were screened in intact cells or whole organisms to identify substances that had a desirable therapeutic effect in a process known as classical pharmacology. After sequencing of the human genome allowed rapid cloning and synthesis of large quantities of purified proteins, it has become common practice to use high throughput screening of large compounds libraries against isolated biological targets which are hypothesized to be disease-modifying in a process known as reverse pharmacology. Hits from these screens are then tested in cells and then in animals for efficacy. Modern drug discovery i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oral Administration
Oral administration is a route of administration whereby a substance is taken through the Human mouth, mouth, swallowed, and then processed via the digestive system. This is a common route of administration for many medications. Oral administration can be easier and less painful than other routes of administration, such as Injection (medicine), injection. However, the onset of action is relatively low, and the effectiveness is reduced if it is not absorbed properly in the digestive system, or if it is broken down by digestive enzymes before it can reach the bloodstream. Some medications may cause gastrointestinal side effects, such as nausea or vomiting, when taken orally. Oral administration can also only be applied to conscious patients, and patients able to swallow. Terminology ''Per os'' (; ''P.O.'') is an adverbial phrase meaning literally from Latin "through the mouth" or "by mouth". The expression is used in medicine to describe a treatment that is taken orally (but not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
