منابع مشابه
The Availability for Growth of N-methyl- Tryptophane Administered as Its Acetyl Derivative
Investigation of the metabolic fate of acylated amino acids has disclosed many instances of interesting selective action by the animal organism. Magnus-Levy (1) found it possible to recover t,he unaltered benzoyl derivatives of several amino acids, often in excellent yield, from the urine of animals injected with these compounds. On the other hand, formyl derivatives, as represented by formylgl...
متن کاملAcetyl-L-Carnitine Monograph
Introduction Acetyl-L-carnitine (ALC) is an ester of the trimethylated amino acid, L-carnitine, and is synthesized in the human brain, liver, and kidney by the enzyme ALC-transferase. Acetyl-L-carnitine facilitates the uptake of acetyl CoA into the mitochondria during fatty acid oxidation, enhances acetylcholine production, and stimulates protein and membrane phospholipid synthesis. ALC, simila...
متن کاملTryptophane Metabolism I. the Production of Kynurenic Acid from Tryptophane Derivatives* by Clarence P. Berg
Recent work (Berg, Rose, and Marvel, 1929-30) has shown that the essential amino acid, tryptophane, may be rendered unfit for supporting growth, either by benzoylation or by condensation with formaldehyde. The formaldehyde condensation product has been employed also by Jackson (1929) with a similar result. On the other hand, neither esterification with ethyl alcohol nor acetylation caused any d...
متن کاملThe Racemization of Amino Acids in Aqueous Solution by Acetic Anhydride
In a previous investigation du Vigneaud and Sealock (1) have reported that the sodium salt of acetyl-l-tryptophane in aqueous solution at 35-40” is completely racemized by acetic anhydride within a few hours. The ease of racemization and particularly the mild conditions under which the reaction occurred seemed to us to offer an excellent method for racemizing amino acids if the reaction should ...
متن کاملThe effect of acetyl l-carnitine on ultrastructure of injured motoneuron synapses in adult rat
Background and Objective: Spinal cord compression is a relatively common neurological complication in developing country. This study was designed to assess neuroprotective effect of acetyl L-carnitine. Materials and Methods: 16 adult Sprague Dawley rats weighing 250 to 300 g were divided into 4 randomized groups, namely, A-laminectomy with daily intraperitoneal injection of acetyl L-carnitine....
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1932
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)76289-3