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Catharanthus Trichophyllus
''Catharanthus trichophyllus'' is a species of flowering plant in the family Apocynaceae. It is endemic to Madagascar, where it is most common in northern regions.Schmelzer, G. H. (2007)''Catharanthus trichophyllus'' (Baker) Pichon. In: Schmelzer, G. H. and A. Gurib-Fakim. (Editors). Prota 11(1): Medicinal Plants/''Plantes Médicinales'' 1. PROTA. Wageningen, Netherlands. Description This is a perennial herb growing up to one meter tall. It has an unpleasant scent. It contains a white latex. The stems and branches are squared, winged, and reddish or purplish in color. The oppositely arranged leaves have hairy, pointed oval blades up to 8.5 centimeters long. They are each accompanied by several stipules. Flowers occur singly or in pairs in the leaf axils. The calyx is up to a centimeter long and has five long, narrow lobes. The corolla has a tubular throat over 2 centimeters long opening into five lobes each up to 1.8 centimeters long. The flowers may be white, pink, red, or purpl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Gilbert Baker
John Gilbert Baker (13 January 1834 – 16 August 1920) was an England, English botanist. His son was the botanist Edmund Gilbert Baker (1864–1949). Biography Baker was born in Guisborough in North Yorkshire, the son of John and Mary (née Gilbert) Baker, and died in Kew. He was educated at Quaker schools at Ackworth School and Bootham School, York. He then worked at the library and herbarium of the Royal Botanic Gardens, Kew between 1866 and 1899, and was keeper of the herbarium from 1890 to 1899. He wrote handbooks on many plant groups, including Amaryllidaceae, Bromeliaceae, Iridaceae, Liliaceae, and ferns. His published works includ''Flora of Mauritius and the Seychelles''(1877) and ''Handbook of the Irideae'' (1892). Baker issued several exsiccata-like series, among others the series ''Herbarium of British Roses [Herbarium Rosarum Britannicarum]''.Triebel, D. & Scholz, P. 2001–2024 ''IndExs – Index of Exsiccatae''. – Botanische Staatssammlung München: http://in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toothache
Toothaches, also known as dental pain or tooth pain,Segen JC. (2002). ''McGraw-Hill Concise Dictionary of Modern Medicine''. The McGraw-Hill Companies. is pain in the teeth or their supporting structures, caused by dental diseases or referred pain, pain referred to the teeth by non-dental diseases. When severe it may impact sleep, eating, and other daily activities. Common causes include pulpitis, inflammation of the pulp, (usually in response to dental caries, tooth decay, dental trauma, or other factors), dentin hypersensitivity, apical periodontitis (inflammation of the periodontal ligament and alveolar bone around the Root apex (dental), root apex), dental abscesses (localized collections of pus), alveolar osteitis ("dry socket", a possible complication of dental extraction, tooth extraction), acute necrotizing ulcerative gingivitis (a gum infection), and temporomandibular disorder. Pulpitis is reversible when the pain is mild to moderate and lasts for a short time afte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plants Used In Traditional African Medicine
Plants are the eukaryotes that form the kingdom Plantae; they are predominantly photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with cyanobacteria to produce sugars from carbon dioxide and water, using the green pigment chlorophyll. Exceptions are parasitic plants that have lost the genes for chlorophyll and photosynthesis, and obtain their energy from other plants or fungi. Most plants are multicellular, except for some green algae. Historically, as in Aristotle's biology, the plant kingdom encompassed all living things that were not animals, and included algae and fungi. Definitions have narrowed since then; current definitions exclude fungi and some of the algae. By the definition used in this article, plants form the clade Viridiplantae (green plants), which consists of the green algae and the embryophytes or land plants (hornworts, liverworts, mosses, lycophytes, ferns, conifers and other gymnosper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catharanthus
''Catharanthus'' is a genus of flowering plants in the family Apocynaceae. Like the genus ''Vinca'', they are known commonly as periwinkles. It is a perennial herb and a subshrub endemic to Madagascar, with the exception of the Catharanthus pusillius species, which is found in India and Sri Lanka. The most widely known species is Catharanthus roseus due to its renowned usage in traditional and modern medicine, specifically, as a source of cancer-treating alkaloid chemicals. Morphology The plants of Catharanthus are perennial herbs that are subshrubby, often with prostrate or erect stems that branch from the base of the plant. The genus was first described in 1837 by George Don. He characterized the plants by the morphological features of simple, opposite, or almost oppositely arranged leaves. The flowers are usually solitary in the leaf axils. Each has a calyx with five long, narrow lobes and a corolla with a tubular throat and five lobes that can be twisted. Fruits are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid (biology)
In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different varieties, subspecies, species or genera through sexual reproduction. Generally, it means that each cell has genetic material from two different organisms, whereas an individual where some cells are derived from a different organism is called a chimera. Hybrids are not always intermediates between their parents such as in blending inheritance (a now discredited theory in modern genetics by particulate inheritance), but can show hybrid vigor, sometimes growing larger or taller than either parent. The concept of a hybrid is interpreted differently in animal and plant breeding, where there is interest in the individual parentage. In genetics, attention is focused on the numbers of chromosomes. In taxonomy, a key question is how closely related the parent species are. Species are reproductively isolated by strong barriers to hybridization, which include genetic and morph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vinca Alkaloid
''Vinca'' alkaloids are a set of Antimitotic agent, anti-mitotic and Anti-microtubule activity, anti-microtubule alkaloid agents originally derived from the periwinkle plant ''Catharanthus roseus'' (basionym ''Vinca rosea'') and other ''vinca'' plants. They block beta-tubulin polymerization in a dividing cell. Sources The Madagascan periwinkle ''Catharanthus roseus'' L. is the source for a number of important natural products, including catharanthine and vindoline and the vinca alkaloids it produces from them: leurosine and the chemotherapy agents vinblastine and vincristine, all of which can be obtained from the plant. The newer semisynthesis, semi-synthetic chemotherapeutic agent vinorelbine is used in the treatment of non-small-cell lung cancer and is not known to occur naturally. However, it can be prepared either from vindoline and catharanthine or from leurosine, in both cases by synthesis of anhydrovinblastine, which "can be considered as the key intermediate for the syn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catharanthus Roseus
''Catharanthus roseus'', commonly known as bright eyes, Cape periwinkle, graveyard plant, Madagascar periwinkle, old maid, pink periwinkle, rose periwinkle, is a perennial species of flowering plant in the family Apocynaceae. It is native and endemic to Madagascar, but is grown elsewhere as an ornamental and medicinal plant, and now has a pantropical distribution. It is a source of the drugs vincristine and vinblastine, used to treat cancer. It was formerly included in the genus ''Vinca'' as ''Vinca rosea''. It has many vernacular names among which are ''arivotaombelona'' or ''rivotambelona'', ''tonga'', ''tongatse'' or ''trongatse'', ''tsimatiririnina'', and ''vonenina''. Taxonomy Two varieties are recognized * ''Catharanthus roseus'' var. ''roseus'' : Synonymy for this variety ::''Catharanthus roseus'' var. ''angustus'' Steenis ex Bakhuizen f. :: ''Catharanthus roseus'' var. ''albus'' G.Don G.Don, Gen. Hist. 4(1): 95. 1837. :: ''Catharanthus roseus'' var. ''occellatus'' G.D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anorectic
An anorectic is a drug that reduces appetite, resulting in lower food consumption, leading to weight loss. These substances work by affecting the central nervous system or certain neurotransmitters to create a feeling of fullness or reduce the desire to eat. The understanding of anorexiant effects is crucial in the development of interventions for weight management, eating disorders, and related health concerns. The anorexiant effect can be induced through diverse mechanisms, ranging from hormonal regulation to neural signaling. Ghrelin, leptin, and peptide YY are among the hormones involved in appetite control. Additionally, neurotransmitters such as serotonin and dopamine in the central nervous system contribute significantly to the regulation of food intake. By contrast, an appetite stimulant is referred to as orexigenic. The term is (from the Greek and ), and such drugs are also known as anorexigenic, anorexiant, or appetite suppressant. History Used on a short-term ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphrodisiac
An aphrodisiac is a substance that increases libido, sexual desire, sexual attraction, sexual pleasure, or sexual behavior. These substances range from a variety of plants, spices, and foods to synthetic chemicals. Natural aphrodisiacs, such as cannabis (drug), cannabis or cocaine, are classified into plant-based and non-plant-based substances. Synthetic aphrodisiacs include MDMA and methamphetamine. Aphrodisiacs can be classified by their type of effects (psychological or physiological). Aphrodisiacs that contain hallucinogenic properties, such as bufotenin, have psychological effects that can increase sexual desire and sexual pleasure. Aphrodisiacs that have smooth muscle relaxing properties, such as yohimbine, have physiological effects that can affect hormone concentrations and increase blood flow. Substances that have the opposite effects on libido are called anaphrodisiacs. Aphrodisiac effects can also be due to the Placebo, placebo effect. Both males and females can po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stimulant
Stimulants (also known as central nervous system stimulants, or psychostimulants, or colloquially as uppers) are a class of drugs that increase alertness. They are used for various purposes, such as enhancing attention, motivation, cognition, Mood disorder, mood, and physical activity, physical performance. Some stimulants occur naturally, while others are exclusively synthetic. Common stimulants include caffeine, nicotine, amphetamines, cocaine, methylphenidate, and modafinil. Stimulants may be subject to varying forms of regulation, or outright prohibition, depending on jurisdiction. Stimulants increase activity in the sympathetic nervous system, either directly or indirectly. Prototypical stimulants increase synaptic concentrations of neurotransmitter, excitatory neurotransmitters, particularly norepinephrine and dopamine (e.g., methylphenidate). Other stimulants work by binding to the Receptor (biochemistry), receptors of excitatory neurotransmitters (e.g., nicotine) or by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liver Disease
Liver disease, or hepatic disease, is any of many diseases of the liver. If long-lasting it is termed chronic liver disease. Although the diseases differ in detail, liver diseases often have features in common. Liver diseases File:Ground glass hepatocytes high mag cropped 2.jpg, Ground glass hepatocytes File:Primary biliary cirrhosis intermed mag much cropping.jpg, Primary biliary cirrhosis File:Buddchiari2.PNG, Budd–Chiari syndrome File:Non-alcoholic_fatty_liver_disease1.jpg, Micrograph of non-alcoholic fatty liver disease There are more than a hundred different liver diseases. Some of the most common are: * Fascioliasis, a parasitic infection of liver caused by a liver fluke of the genus '' FascioIa'', mostly '' FascioIa hepatica''. * Hepatitis, inflammation of the liver, is caused by various viruses ( viral hepatitis) also by some liver toxins (e.g. alcoholic hepatitis), autoimmunity ( autoimmune hepatitis) or hereditary conditions. * Alcoholic liver disease is a h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
