On Bilirubin-metal Complex Compounds in Relation to Black Pigments of Gallstones
نویسندگان
چکیده
منابع مشابه
On Black Pigment of Gallstones with Special Reference to Comparison with Bilirubin Derivatives.
It was found in the preceding experiment that a black pigment isolated from black-appearing gallstones resembled melanins but was definitely different from the latter in the chemical structure. As a continuation of the study, this report depicts the results of comparison of the pigment with black substances prepared in vitro from various bilirubin materials. When synthetic calcium bili rubinate...
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ویژگی های زمین شیمیایی، کانی شناسی، و میکرومورفولوژیکی خاک ها و سنگ مادر مربوطه در منطقه بین بخش های جنوبی زاگرس و خلیج فارس تا دریای عمان(استان هرمزگان، ایران) مورد بررسی قرار گرفت. هدف های این مطالعه شناسایی تغییرات در خصوصیات فیزیکی، شیمیایی، و ترکیب کانی شناسی خاک، مطالعه میکرومورفولوژی و تکامل خاک، و بررسی توزیع عنصر خاک بر اساس هوازدگی، پروسه های خاک و زمین شناسی جهت توصیف اثرات مواد مادر...
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Gallstonedisease causes a substantialhealthandeconomicburden in theUnited States andother developed countries.More than 6millionmen and 14millionwomen aged 20 to 74 years in the United States have gallbladder disease.1 Approximately 650 000 to 700 000 cholecystectomies are performed annually in the United States, and the costs associated with the symptoms and complications of gallstones are est...
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The blue pigment of cornflower, protocyanin, has been investigated for a long time, but its precise structure was not entirely explained until recently. The molecular structure of the pigment was recently shown to be a metal complex of six molecules each of anthocyanin and flavone glycoside, with one ferric iron, one magnesium and two calcium ions by X-ray crystallographic analysis. The studies...
متن کاملcomparison of catalytic activity of heteropoly compounds in the synthesis of bis(indolyl)alkanes.
heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...
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ژورنال
عنوان ژورنال: The Tohoku Journal of Experimental Medicine
سال: 1966
ISSN: 0040-8727,1349-3329
DOI: 10.1620/tjem.90.195