[PDF] Top 20 El niño, su sexualidad y la escuela

... There could be an impaired ability of the cell to take up the vitamin, or to con- vert it to its coenzyme; on the other hand the apoenzyme might be altered so as to im-.. pair its abilit[r] ... See full document

... dependence [Fiskerstrand et al 1994]. Soy and selenium inhibit tumour growth by causing methionine deficiency [Hawrylewicz et al 1995; McGarity et al 1993]. These correlation’s have led to the development o f a novel ... See full document

... studies indicate that measurement of cobalamin cofactor synthesis is more sensitive than indirect measures of cobalamin-dependent enzyme function in detecting inborn errors of metabo- lism. Similar fi ndings have ... See full document

... Acid hydrolysis of cobalamins yields mixtures of mono- to heptacarboxylic acids. The acetamide residues are more resistant to both acidic and basic hydrolysis than the propionamide groups. Preferential cleavage of a ... See full document

... Vitamin B12 (Cobalamin) is a standout amongst the most indispensable biomolecules in the realm of drug and ...extracts, vitamin B12 which is the main substance in the liver attracted ... See full document

... (approximately 0.05 mg/kg), high concentrate finishing diets reported a decrease in the molar proportions of ruminal propionate relative to those consuming Co-supplemented diets at 84 d. Results of those studies suggest ... See full document

... (ii) Imerslund-Gra¨sbeck syndrome- a rare, potentially fatal condition presenting in children of 3-10years, caused by mutations affecting CUBN gene which encodes cubulin- the high affinity receptor for intrinsic ... See full document

... casei-active folic acid activity to accumulate in the serum of subjects with vitamin B12 deficiency, it is possible that a low normal value for such activity may be present in the serum [r] ... See full document

... that vitamin B 12 (B 12 ) deficiency in a murine genetic model results in severe postweaning growth retardation and osteoporosis, and the severity and time of onset of this phenotype in the offspring depends on ... See full document

... of B12 supplementation in ESRD patients is yield- ed by injection, rather than oral ...of B12 in combination with folate makes it more ...and B12 is highly recommended to clarify the effect of ... See full document

... promoting vitamin B 12 uptake by rat intestinal sacs as intrinsic factor prepared from control ...labeled vitamin B 12 which can be corrected by pancreatic extract. The vitamin B 12 malabsorption is ... See full document

... Schuh 5, Rosenblatt DS, Cooper BA, et al: Homocystinuria and megaloblastic anemia responsive to vitamin B,2 therapy: An inborn error of metabolism due to a defect in cobalamin. metabolis[r] ... See full document

... serum vitamin B12 levels (P = ...lower vitamin B12 levels (mean ...and vitamin B12 concentrations in Caucasian populations (P > ...with vitamin B12 status (P ... See full document

... various vitamin B 12 analogs to intrinsic factor was determined by competition experiments, the analogs could be separated into two categories: those with affinities similar to that of cyanocobalamin and those ... See full document

... cellular metabolism with DNA stress, cellular oxidative damage, alterations in odd- chain fatty acid and cholesterol synthesis, and anaplerosis as con- sequences (8, ... See full document

... as vitamin Bl2 is released from the R proteins, it binds to intrinsic ...transports vitamin B12 from the intestine to other tissues is transcobalamin 11, which is a member of the R- protein family ... See full document

... Concurrent hemolysis in patients with vitamin B12 defi- ciency is a well-recognized phenomenon. While its mech- anisms are not entirely understood, it is believed that the hemolysis results from ... See full document

... that vitamin B12 augments the role of folic acid in the homocysteine– cardiovascular disease pathway, its biological signifi- cance has been difficult to ...for vitamin B12 like that of folic  ... See full document

... by vitamin B12 in acute acetaminophen ...of vitamin B12 in reducing the liver damage after acetaminophen overdose is also evident from the histopathological changes observed in the ... See full document

... TOXICITY, LONG CHAIN KETONURIA, AND PROTECTIVE EFFECT OF -DEPENDENT METHYLMALONICACIDURIA: AMINO ACID 12. VITAMIN B[r] ... See full document