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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Parenterally administered dipeptide alanyl-glutamine prevents worsening of insulin sensitivity in multiple-trauma patients.

BACKGROUND: Dipeptide alanyl-glutamine is a commonly used substrate in major trauma patients. Its importance and effects are widely discussed; as yet, it has not been elucidated whether its administration influences glucose homeostasis. OBJECTIVE: We studied the effect of alanyl-glutamine administration on insulin resistance. DESIGN: Prospective, randomized, controlled trial. SETTING: Intensive care unit of a tertiary level hospital. PATIENTS: Multiple-trauma patients. INTERVENTIONS: Patients were randomized into two groups and assigned to receive parenterally an equal dose of amino acids either with alanyl-glutamine in the dose of 0.4 g x kg body weight(-1) x 24 hrs(-1) (group AG) or without alanyl-glutamine (control group C). This regimen started 24 hrs after injury and continued for 7 days. To assess insulin sensitivity, we performed an euglycemic clamp on day 4 and day 8 after injury. MEASUREMENTS AND MAIN RESULTS: We randomized 40 patients, 20 into each group. At day 4, insulin-mediated glucose disposal was higher in group AG (2.4 +/- 0.7 mg x kg(-1) x min(-1) glucose), with significant difference from group C (1.9 +/- 0.6 mg x kg(-1) x min(-1), p = .044). At day 8, glucose disposal was higher in group AG (2.2 +/- 0.7 mg x kg(-1) x min(-1) glucose), with significant difference in comparison with group C (1.2 +/- 0.6, p < .001). Diminution of the main glucose homeostasis variables in group C between days 4 and 8 of the study was statistically significant (p < .001); however, differences in these variables in group AG were without statistical significance. CONCLUSIONS: Parenteral supplementation of alanyl-glutamine dipeptide was associated with better insulin sensitivity in multiple-trauma patients.[1]

References

  1. Parenterally administered dipeptide alanyl-glutamine prevents worsening of insulin sensitivity in multiple-trauma patients. Bakalar, B., Duska, F., Pachl, J., Fric, M., Otahal, M., Pazout, J., Andel, M. Crit. Care Med. (2006) [Pubmed]
 
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