Metabolic Changes in Active Chronic Hepatitis

1972 ◽  
Vol 42 (5) ◽  
pp. 591-605 ◽  
Author(s):  
K. G. M. M. Alberti ◽  
C. O. Record ◽  
D. H. Williamson ◽  
R. Wright

1. The metabolic and hormonal responses to intravenous glucose (0·5 g/kg body wt.) were studied in ten normal subjects and thirteen patients with active chronic hepatitis. Untreated patients showed a decreased initial insulin response and glucose intolerance (KG, 0·89 ± 0·10%/min compared with 2·34 ± 0·24%/min), together with a paradoxical rise in growth hormone. 2. Fasting blood lactate and pyruvate were normal but both metabolites showed a diminished rise after glucose. The rate of rise of lactate was directly related to initial insulin secretion in both hepatitis subjects and controls. 3. Fasting blood ketone bodies, blood glycerol, plasma triglycerides and free fatty acids were all significantly elevated in the patient group. Results were similar to those found in mild diabetes mellitus. 4. In two patients with a more severe cirrhosis fasting values of serum insulin, growth hormone, blood lactate, pyruvate and glycerol were raised. 5. After corticosteroid therapy hyperinsulinism was found together with a return towards normal of glucose tolerance (KG, 1·49 + 0·10%/min), ketone bodies, free fatty acids and triglycerides; blood glycerol remained elevated and lactate response to glucose was excessive. 6. It is suggested that in active chronic hepatitis there might be pancreatic dysfunction on an autoimmune basis.

PEDIATRICS ◽  
1969 ◽  
Vol 44 (5) ◽  
pp. 668-671
Author(s):  
Jordan D. Tobin ◽  
Jacques F. Roux ◽  
J. Stuart Soeldner

The effects of an intravenous injection of glucose (0.5 gm/kg) on the concentration of maternal and fetal serum glucose, insulin, and free fatty acids (FFA) were determined in six women in labor. The maternal hyperglycemia was accompanied by a rapid increase in maternal serum insulin concentration and a fall in maternal FFA levels. Fetal serum insulin and FFA values showed either no changes or a markedly attenuated response despite fetal hyperglycemia. These results are consistent with a diminished responsiveness of the human fetal pancreas to alterations in glucose concentrations in the hour prior to birth.


Endocrinology ◽  
1990 ◽  
Vol 126 (4) ◽  
pp. 1934-1940 ◽  
Author(s):  
M. J. ESTIENNE ◽  
K. K. SCHILLO ◽  
S. M. HILEMAN ◽  
M. A. GREEN ◽  
S. H. HAYES ◽  
...  

1984 ◽  
Vol 102 (3) ◽  
pp. 381-386 ◽  
Author(s):  
R. Gross ◽  
P. Mialhe

ABSTRACT To elucidate the hypolipacidaemic effect of insulin in ducks, its action on the uptake of free fatty acids (FFA) by duck hepatocytes was determined. At low doses (10 mu./l) insulin stimulated FFA uptake. This effect was not observed with higher doses of insulin (20, 30 and 50 mu./l). Growth hormone at physiological concentrations and corticosterone (14·4 nmol/l) decreased basal activity, probably by reducing glucose metabolism and consequently α-glycerophosphate (α-GP) supply. Insulin was able to reverse the inhibition induced by GH and corticosterone on both FFA uptake and α-GP production. These results therefore suggest that the hypolipacidaemic effect of insulin may be partly mediated by its action on hepatic FFA uptake. J. Endocr. (1984) 102, 381–386


2018 ◽  
Vol 108 (4) ◽  
pp. 857-867 ◽  
Author(s):  
Henrik H Thomsen ◽  
Nikolaj Rittig ◽  
Mogens Johannsen ◽  
Andreas B Møller ◽  
Jens Otto Jørgensen ◽  
...  

Abstract Background Acute inflammation, and subsequent release of bacterial products (e.g. LPS), inflammatory cytokines, and stress hormones, is catabolic, and the loss of lean body mass predicts morbidity and mortality. Lipid intermediates may reduce protein loss, but the roles of free fatty acids (FFAs) and ketone bodies during acute inflammation are unclear. Objective We aimed to test whether infusions of 3-hydroxybutyrate (3OHB), FFAs, and saline reduce protein catabolism during exposure to LPS and Acipimox (to restrict and control endogenous lipolysis). Design A total of 10 healthy male subjects were randomly tested 3 times, with: 1) LPS, Acipimox (Olbetam) and saline, 2) LPS, Acipimox, and nonesterified fatty acids (Intralipid), and 3) LPS, Acipimox, and 3OHB, during a 5-h basal period and a 2-h hyperinsulinemic, euglycemic clamp. Labeled phenylalanine, tyrosine, and urea tracers were used to estimate protein kinetics, and muscle biopsies were taken for Western blot analysis of protein metabolic signaling. Results 3OHB infusion increased 3OHB concentrations (P < 0.0005) to 3.5 mM and decreased whole-body phenylalanine-to-tyrosine degradation. Basal and insulin-stimulated net forearm phenylalanine release decreased by >70% (P < 0.005), with both appearance and phenylalanine disappearance being profoundly decreased. Phosphorylation of eukaryotic initiation factor 2α at Ser51 was increased in skeletal muscle, and S6 kinase phosphorylation at Ser235/236 tended (P = 0.074) to be decreased with 3OHB infusion (suggesting inhibition of protein synthesis), whereas no detectable effects were seen on markers of protein breakdown. Lipid infusion did not affect phenylalanine kinetics, and insulin sensitivity was unaffected by interventions. Conclusion During acute inflammation, 3OHB has potent anticatabolic actions in muscle and at the whole-body level; in muscle, reduction of protein breakdown overrides inhibition of synthesis. This trial was registered at clinicaltrials.gov as NCT01752348.


Metabolism ◽  
1994 ◽  
Vol 43 (2) ◽  
pp. 223-226 ◽  
Author(s):  
Mauro Maccario ◽  
Massimo Procopio ◽  
Sandro Loche ◽  
Marco Cappa ◽  
Valentino Martina ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document