| TA | alkaline tuberculin; arterial tension; axillary temperature; tactile afferent; Takayasu arteritis; t... |
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| PA | Pyrrolizidine alkaloids |
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| berberine | <chemical> A toxic organic substance with the chemical formula C20H19NO5 which is found in the roots of certain plants such as barberry and golden seal. It kills amoebas (is an amebicide) and is used to treat cholera. It cannot be dissolved in water, but is soluble in alcohol and ether. It has a melting point of 145 degrees Celsius when dry. As a solid, it is a white to yellow crystalline alkaloid. (09 Oct 1997) |
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| alkaloids | Organic nitrogenous bases. Many alkaloids of medical importance occur in the animal and vegetable kingdoms, and some have been synthesised. (12 Dec 1998) |
| belladonna alkaloids | Alkaloids obtained from various plants, especially the deadly nightshade (atropa belladonna), variety acuminata; atropine, hyoscyamine and scopolamine are classical, specific antimuscarinic agents with many pharmacologic actions; used mainly as antispasmodics. (12 Dec 1998) |
| bisbenzylisoquinoline alkaloids | A group of alkaloids whose base structure is two fused isoquinoline rings e.g., curare alkaloids. (05 Mar 2000) |
| rauwolfia alkaloids | <chemical> Alkaloids from rauwolfia serpentina benth and other species. The prototype is reserpine, which is a depleter of catecholamines and serotonin from the sympathetic postganglionic fibres and brain areas. They have been used in hypertension and psychoses despite their wide range of potentially adverse effects. Pharmacological action: adrenergic uptake inhibitors, antihypertensive agents, antipsychotic agents, sympatholytics. (12 Dec 1998) |
| veratrum alkaloids | <chemical> Alkaloids with powerful hypotensive effects isolated from american or european hellebore (veratrum viride ait. Liliaceae and veratrum album l. Liliaceae). They increase cholinergic and decrease adrenergic tone with appropriate side effects and at higher doses depress respiration and produce cardiac arrhythmias; only the ester alkaloids have been used as hypotensive agents in specific instances. They have been generally replaced by drugs with fewer adverse effects. Pharmacological action: antihypertensive agents. (12 Dec 1998) |
| Catharanthus alkaloids | <chemical> A class of alkaloids from the genus of apocyanaceous woody herbs including periwinkles. They are some of the most useful antineoplastic agent. Pharmacological action: antineoplastic agent, phytogenic, vasodilator agents. (12 Dec 1998) |
| vinca alkaloids | <chemical> A class of alkaloids from the genus of apocyanaceous woody herbs including periwinkles. They are some of the most useful antineoplastic agent. Pharmacological action: antineoplastic agent, phytogenic, vasodilator agents. (12 Dec 1998) |
| cinchona alkaloids | Alkaloids extracted from various species of cinchona. (12 Dec 1998) |
| salsoline alkaloids | Tetrahydroisoquinolinol alkaloids in both dextro and levo forms, originally from salsola richteri; may be hypotensive due to inhibition of certain brain enzymes; may be formed de novo in brain from dopamine during alcoholism. (12 Dec 1998) |
| xanthine alkaloids | Alkaloids, which contain xanthine as their nitrogenous base. (12 Dec 1998) |
| pyrrolizidine alkaloids | <chemical> Alkaloids found in various species of senecio and other plants. There are at least ten different chemicals, many of them hepatotoxic, teratogenic, and carcinogenic. The plants may cause damage in grazing herds, but no longer have medical use. Pharmacological action: carcinogens. (12 Dec 1998) |
| solanaceous alkaloids | Alkaloids, mainly tropanes, elaborated by plants of the family solanaceae, including atropa, hyoscyamus, mandragora, nicotiana, solanum, etc. Some act as cholinergic antagonists; most are very toxic; many are used medicinally. (12 Dec 1998) |
| ergot alkaloids | Alkaloids isolated from the ergot fungus claviceps purpurea (hypocreaceae). The ergot alkaloids were the first alpha-adrenergic antagonists discovered, but side effects generally prevent their administration in doses that would produce more than a minimal blockade in humans. Their smooth muscle-stimulating activities may be attributed to alpha-agonistic properties, thus characterizing these alkaloids as a series of partial agonists. They have many clinical applications, notably in obstetrics and the treatment of migraine. (12 Dec 1998) |
Synonyms : Alkaloids, Berberine
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