Results 141 to 150 of about 9,393 (183)
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Hyperammonemia in acetaminophen toxicity
Clinical Toxicology, 2021Acetaminophen-induced hepatotoxicity can result in hyperammonemia, but it is not clear if elevated ammonia concentrations predict encephalopathy.We retrospectively studied patients with acetaminophen toxicity at a liver transplant center over 8 years (January 1, 2010-December 31, 2017), who developed hepatotoxicity (AST and/or ALT >1000 IU/L) or ...
Ryan T. Marino, Alexander M. Sidlak
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A case of transient hyperammonemia in the newborn transient neonatal hyperammonemia
The Journal of Maternal-Fetal & Neonatal Medicine, 2009A case of transient hyperammonemia of the newborn (THAN) is described in this paper. THAN is the disorder that is much more frequently present than diagnosed. Therefore, it is necessary to estimate the serum ammonia level in every preterm newborn infant, who develops the signs of respiratory distress syndrome in the first hours of life, along with the ...
Vesna D, Stojanovic +4 more
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Hyperammonemia: The Silent Killer
Southern Medical Journal, 1993Nitrogen, derived from breakdown of dietary amino acids as ammonia, is normally converted to urea and excreted. Impairment in the conversion process (called the urea cycle) can occur, either as a consequence of primary genetic defects or through secondary suppression of enzyme activity.
D E, Miga, K S, Roth
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Hyperammonemia in Alzheimer's disease
American Journal of Psychiatry, 1985Postprandial blood ammonia levels were significantly higher in 22 patients with Alzheimer's disease than in 37 control subjects. In the Alzheimer group, fasting blood ammonia levels were significantly higher in patients whose EEGs showed triphasic waves than in patients without this change.
M, Fisman +5 more
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Postictal transient hyperammonemia
The American Journal of Emergency Medicine, 2008We report cases of several patients who were sent to our hospital because of seizure attacks. Transient hyperammonemia was noted. Many biochemistry abnormalities, such as prolactin and creatine kinase, may be found after an episode of seizures, but hyperammonemia seems to not have been reported before.
Kuan-Ting, Liu, Chen-San, Su
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Hyperammonemia in the Neonate with Hypoxia
1982Inherited defects in enzymes of the urea cycle and those in metabolism of several organic acids and some amino acids can cause neonatal hyperammonemia (Shih, 1978). Ballard et al. (1978) described five newborns with respiratory distress who developed hyperammonemia, but exhibited normal activities of urea cycle enzymes.
Y, Sakaguchi +4 more
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Valproate‐induced hyperammonemia
Annals of Neurology, 1982AbstractA patient with carbamyl phosphate synthetase deficiency had four episodes of hyperammonemia, up to 226 μM, associated with valproate (VPA) treatment. These were accompanied by vomiting, lethargy, and coma. A group of epileptic patients receiving VPA remained asymptomatic but had significantly higher mean plasma ammonium levels when compared to ...
M L, Batshaw, S W, Brusilow
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Hyperammonemia in Multiple Myeloma
Acta Haematologica, 2009Two patients with multiple myeloma who appeared to be producing ammonia are reported. Both patients showed hyperammonemia and amino acid disturbances, such as a low Fischer ratio. One patient had Bence Jones protein (λ) type myeloma and became comatose, but the hyperammonemia and disturbance of consciousness were improved by chemotherapy for the ...
H, Matsuzaki +6 more
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Hyperammonemia and Perinatal Asphyxia
Pediatrics, 1981In a recent article Goldberg et al1 presented data on 12 asphyxiated newborn infants with high ammonia levels concomitant with abnormal liver function tests. They pointed out that the liver dysfunction, probably secondary to the ischemic-hypoxic injury, might have contributed to ammonia elevation by decreasing urea biosynthesis.
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Hyperammonemia in Marasmic Children
Journal of Tropical Pediatrics, 1994The amino acids citrulline, ornithine and arginine, total serum proteins, serum enzymes glutamic oxalacetic and glutamic pyruvic transaminases, blood ammonia and urea were measured in 20 marasmic children with manifest psychomotor changes, before and after nutritional rehabilitation, as well as in 10 healthy age-matched children.
M R, Morsy +5 more
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