THE CONVERSION OF N15-LABELED MESOBILIRUBINOGEN TO STERCOBILINOGEN BY FECAL BACTERIA
نویسندگان
چکیده
منابع مشابه
The conversion of N15-labeled mesobilirubinogen to stercobilinogen by fecal bacteria.
Under normal circumstances, two members of the urobilinogen group have been identified in human feces and urine, both of which are determined quantitatively in the routine urobilinogen procedure (1). Of these, stercobilinogen predominates, while mesobilirubinogen occurs only in small amounts except during excessive hemolysis, when it has been present in sufficient quantity to permit crystalliza...
متن کاملThe Conversion of N16-labeled Mesobilirubinogen to Stercobilinogen by Fecal Bacteria*
Under normal circumstances, two members of the urobilinogen group have been identified in human feces and urine, both of which are determined quantitatively in the routine urobilinogen procedure (1). Of these, stercobilinogen predominates, while mesobilirubinogen occurs only in small amounts except during excessive hemolysis, when it has been present in sufficient quantity to permit crystalliza...
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Quinolinic acid (pyridine-cr , /3-dicarboxylic acid) has been isolated from rat urine after administration of tryptophan to rats (1). It has been suggested that quinolinic acid is formed via 3-hydroxyanthranilic acid by oxidative cleavage of the benzene ring in the 3-4 position, followed by closure incorporating the amino nitrogen in a pyridine ring (1). In this paper are reported the results o...
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1. l-Aspartic acid labeled with N(15) was fed to one human adult and six infants, and the total N and N(15) were determined in the urine from time to time. 2. The N(15) concentration (or isotopic ratio) of urinary N reached its maximum in the adult about 2 hours and in the infants about 4 hours after feeding, then fell off logarithmically. 3. Assuming that the N of aspartic acid readily entered...
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در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1954
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)65581-4