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[Clinical study on the changes of growth hormone/insulin-like growth factor-I axis in patient with obstructive
1Hepatobiliary Surgery Center of PLA, Southwest Hospital, Third Military Medical University, Chongqing 400038, China.
Objective:
To explore the changes and clinical significance of growth hormone (GH)/insulin-like growth factor-I (IGF-I) axis in patient with obstructive jaundice (OJ).
Methods:
The serum GH, GH binding protein (GHBP), IGF-I, endotoxin, prealbumin, and liver function of 60 male in- patients with OJ were investigated 1 day before operation and 1, 3, and 7 days after the operation. Forty male patients with simple gallbladder stone who were hospitalized during the same period as the 60 above mentioned patients, were chosen as controls.
Results:
The levels of GH, GHBP and IGF-I in patients with obstructive jaundice were significantly lower (7.4 micrograms/L +/- 3.6 micrograms/L, 9.1 +/- 2.3 B/T* 100, and 49.8 mg/L +/- 6.6 mg/L respectively) than those in control group(13.9 micrograms/L +/- 5.7 micrograms/L, 13.3 +/- 1.6 B/T* 100, and 61.4 mg/L +/- 6.5 mg/L respectively, P < 0.01) and were correlated closely with the levels of bilirubin, prealbumin and endotoxin (P < 0.01).
Conclusion:
There is an obvious downregulation of GH-IGF-I axis in patients with OJ probably because of the expression inhibition resulting from dystrophy and endoxemia. It may be one of the important factors mediating the pathophysiological changes in OJ.