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alkaloid
alkaloid
alkaloid (al-kă-loid) n. one of a diverse group of nitrogen-containing substances that are produced by plants and have potent effects on body function. Many alkaloids are important drugs, including morphine, quinine, atropine, and codeine.
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Alkaloids: Biochemistry, Ecology, and Medicinal Applications.(Review)
Magazine article from: Crop Science; 7/1/1999; ; 700+ words
; ...biosynthesis of plant alkaloids followed by two...contributions on alkaloid physiology. The...the response of alkaloids to environmental...defensive importance of alkaloids. In the following chapter on alkaloid mode of action...
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Alkaloids: Nature's Curse or Blessing?
Magazine article from: American Journal of Pharmaceutical Education; 1/1/2003; ; 700+ words
; ...naturally occurring Opium alkaloids and their mirror images...Chapter 6 focuses on alkaloid synthesis, providing...the largest group of alkaloids, the indole alkaloids. Chapter 8 presents...benzylisoquinoline alkaloid classes, as well...
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Alkaloids and saponins in dietary supplements of blue cohosh (Caulophyllum thalictroides).(DIETARY SUPPLEMENTS)(Report)
Magazine article from: Journal of AOAC International; 1/1/2008; ; 700+ words
; ...contains a number of alkaloids, including a variety of quinolizidine alkaloids such as baptifoline...contains the aporphine alkaloid magnoflorine (Figure...characterized the alkaloid thalictroidine, as well as the alkaloids taspine, magnoflorine...
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Alkaloid answers.(Modern Alkaloids)(Book review)
Magazine article from: Chemistry and Industry; 5/5/2008; ; 700+ words
; ...However, most studies on alkaloids cover mainly their effects...the book: bioactive alkaloids--structure and biology, new trends in alkaloid isolation and structure...finally, new trends in alkaloid synthesis and biosynthesis...the biosynthesis of alkaloids, and therein lies its...
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Determination of ergot alkaloids: purity and stability assessment of standards and optimization of extraction conditions for cereal samples.(FOOD CHEMICAL CONTAMINANTS)(Report)
Magazine article from: Journal of AOAC International; 11/1/2008; ; 700+ words
; ...important producer of toxic alkaloid metabolites (ergot alkaloids) in the overwintering...OMITTED] The major ergot alkaloids ergometrine, ergotamine...the determined ergot alkaloids then is often referred to as the total alkaloid content (12). LC...
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Biosynthesis and Accumulation of Ergoline Alkaloids in a Mutualistic Association between Ipomoea asarifolia (Convolvulaceae) and a Clavicipitalean Fungus1
Magazine article from: Plant Physiology; 5/1/2008; ; 700+ words
; ...synthesize ergoline alkaloids depends on the presence...responsible for ergoline alkaloid biosynthesis. The gene...occurrence of ergoline alkaloids in taxonomically unrelated...encoding the ergoline alkaloid biosynthetic pathway...the case of ergoline alkaloids, but also with other...
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ENHANCED PRODUCTION OF TROPANE ALKALOIDS IN SCOPOLIA PARVIFLORA BY INTRODUCING THE PMT (PUTRESCINE N-METHYLTRANSFERASE) GENE
Magazine article from: In Vitro Cellular & Developmental Biology; 3/1/2005; ; 700+ words
; ...the tropane alkaloids. Moreover, the tropane alkaloid levels were...pathway of tropane alkaloids (Sato et al...roots are the alkaloid synthetic organ...biosynthesis of these alkaloids (Fig. 1...that tropane alkaloid production by...
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Liquid chromatographic analysis of Cinchona alkaloids in beverages.(FOOD COMPOSITION AND ADDITIVES)(Report)
Magazine article from: Journal of AOAC International; 7/1/2006; ; 700+ words
; ...curves for Cinchona alkaloids with the UV detector...limit of each Cinchona alkaloid, taken to be the concentration...recovery of Cinchona alkaloids added at a level of...of a single Cinchona alkaloid salt to food is prohibited...quantification of 4 Cinchona alkaloids that are main ...
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Exploiting the borono-Mannich reaction in bioactive alkaloid synthesis *.(Report)
Magazine article from: Pure and Applied Chemistry; 4/1/2008; ; 700+ words
; ...polyhydroxylated indolizidine alkaloids, for example, castanospermine...structurally related alkaloid, uniflorine A 8 [10]. These alkaloids are powerful inhibitors...azepine Stemona alkaloid, stemocurtisinol 13 [14]. These alkaloids comprise a new and...
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Induction of apoptosis by carbazole alkaloids isolated from Murraya koenigii.
Magazine article from: Phytomedicine: International Journal of Phytotherapy & Phytopharmacology; 5/1/2006; ; 700+ words
; ...HL-60. Three carbazole alkaloids, mahanine (6), pyrayafoline...after treatment with each alkaloid. Interestingly, each carbazole alkaloid induced the loss of mitochondrial...activated upon treatment with the alkaloids. Caspase-9 and caspase...
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Alkaloids
Book article from: Plant Sciences
...has led to the term alkaloids. Since the identification of the first alkaloid, morphine, from the...more than ten thousand alkaloids have been isolated from...time other organs are alkaloid-free. In potato plants...tubers are devoid of alkaloids, whereas the green...
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Alkaloid
Encyclopedia entry from: The Gale Encyclopedia of Science
Alkaloid Alkaloids are chemical compounds, found...with acids to form salts. All alkaloids contain the element nitrogen...all plants contain some type of alkaloid. It is unclear why alkaloids are so common, and it is a matter...
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alkaloid
Book article from: The Columbia Encyclopedia, Sixth Edition
alkaloid any of a class of...alkalilike, some alkaloids do not exhibit alkaline...diseases. Narcotic alkaloids used in medicine...anesthetic. Other common alkaloids include quinine...Aconitine is the alkaloid of aconite . Cinchonine...
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alkaloids
Book article from: A Dictionary of Food and Nutrition
alkaloids Naturally occurring organic bases which have marked pharmacological actions...are found in plant foods, including potatoes and tomatoes (the Solanum alkaloids), or as the products of fungal action (e.g. ergot ), although they...
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vinca alkaloid
Book article from: A Dictionary of Nursing
vinca alkaloid ( ving -kă) n. one of a group of antimitotic drugs (see cytotoxic drug ) derived from the periwinkle (Vinca rosea). Vinca alkaloids, usually administered intravenously, are used especially to treat leukaemias...
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