Deficiency of Carnitine in Cachectic Cirrhotic Patients

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Deficiency of carnitine in cachectic cirrhotic patients.

Carnitine is synthesized from lysine and methionine. In the rat, inadequate intake of either of these essential amino acids causes carnitine depletion. Inasmuch as protein deficiency is common in the hospital population, we have investigated the possible occurrence of nosocomial carnitine deficiency. Fasting serum carnitine concentration was measured in 16 normal and 247 patients in 16 disease ...

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Carnitine Deficiency and Improvement of Muscle Cramp by Administration of Carnitine in Patients with Liver Cirrhosis

Aim: We measured carnitine levels in patients with carnitine including dialysis patients, and examined whether administration of L-carnitine improved muscle symptoms. Methods: We measured carnitine levels in 27 patients with liver cirrhosis who were receiving treatment in our hospital, and administered L-carnitine (600 mg 1800 mg) to patients having muscle cramps for approximately one month and...

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Abnormal sodium stimulation of carnitine transport in primary carnitine deficiency.

Primary carnitine deficiency is an autosomal recessive disorder of fatty acid oxidation characterized by hypoketotic hypoglycemia and skeletal and cardiac myopathy. It is caused by mutations in the sodium-dependent carnitine cotransporter OCTN2. The majority of natural mutations identified in this and other Na(+)/solute symporters introduce premature termination codons or impair insertion of th...

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Relative carnitine deficiency in autism.

A random retrospective chart review was conducted to document serum carnitine levels on 100 children with autism. Concurrently drawn serum pyruvate, lactate, ammonia, and alanine levels were also available in many of these children. Values of free and total carnitine (p < 0.001), and pyruvate (p = 0.006) were significantly reduced while ammonia and alanine levels were considerably elevated (p <...

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The authors investigated 32 patients with the muscle form of CPT II deficiency. Total carnitine palmitoyltransferase enzyme system (CPT) activity was normal but abnormally inhibited by malonyl-CoA, palmitoyl-CoA, and the detergents Triton X and Tween 20. Mutation analysis identified three described mutations (S113L, P50H, and F448L) and two novel mutations (M214T and Y479F). Using modeling tech...

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ژورنال

عنوان ژورنال: Journal of Clinical Investigation

سال: 1977

ISSN: 0021-9738

DOI: 10.1172/jci108824