Jpen Parenter Enter
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Jpen Parenter Enter · Sep 1994
Effect of ketone bodies on hyperglycemia and lactic acidemia in hemorrhagic stress.
To investigate the effect of hyperketonemia on altered glucose metabolism under stress conditions, we infused sodium D-3-hydroxybutyrate (3-OHB) into rats in hemorrhagic hypotension and evaluated the plasma concentration of substrates related to glucose metabolism. ⋯ These results suggest that administered 3-OHB may suppress glycolysis during hemorrhagic shock.
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Jpen Parenter Enter · Sep 1994
Randomized Controlled Trial Comparative Study Clinical TrialAmino acid solutions for premature neonates during the first week of life: the role of N-acetyl-L-cysteine and N-acetyl-L-tyrosine.
Tyrosine and cyst(e)ine are amino acids that are thought to be essential for preterm neonates. These amino acids have low stability (cyst(e)ine) or low solubility (tyrosine) and are therefore usually present only in small amounts in amino acid solutions. Acetylation improves the stability and solubility of amino acids, facilitating a higher concentration in the solution. ⋯ We show a linear correlation of plasma cystine with the intake of cysteine (r = .75, p = 0.01), but not with N-acetyl-L-cysteine. The estimated intake of cysteine should be 500 mumol.kg-1.d-1 in order to obtain levels comparable with those shown in normal term, breast-fed neonates. Nitrogen retention did not differ among the three groups (247 to 273 mg.kg-1.d-1).(ABSTRACT TRUNCATED AT 250 WORDS)
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Jpen Parenter Enter · Sep 1994
Comparative StudyCorrelation between measured energy expenditure and clinically obtained variables in trauma and sepsis patients.
Indirect calorimetry is the preferred method for determining caloric requirements of patients, but availability of the device is limited by high cost. A study was therefore conducted to determine whether clinically obtainable variables could be used to predict metabolic rate. ⋯ Severe trauma and sepsis patients are hypermetabolic, but energy expenditure is predictable from clinical data. The regression equations probably apply only to severe trauma and sepsis. Other studies should be conducted to predict energy expenditure in other patient types.