The effects of starvation and surgical injury on the plasma levels of glucose, free fatty acids, and neutral lipids in newborn babies suffering from various congenital anomalies.
Blood glucose, plasma free fatty acids (FFA), cholesterol, phospholipids, and triglycerides were measured in blood obtained by heel prick from 32 neonatal surgical patients suffering from various cogenital malformations which prevented and adequate intake of milk. The result of almost complete starvation for up to 7 days was investigated and the effects of a surgical operation were studied in 12 of the babies. All the babies weighed more than 2 kg at birth. A surgical operation caused a rise in blood glucose concentration but a variable change in plasma concentration of FFA. Blood glucose returned to normal within 8 to 12 hr. The plasma concentrations of cholesterol and phospholipids did not change except in two babies in whom the concentration of both fell. Four to 24 hr after operation the plasma triglyceride level fell by an average of 25% but later rose. During starvation for 7 days the blood glucose concentration was maintained within normal limits. Plasma FFA concentration normally rose during the first 2 days of life and was very high between days 3 and 5. Plasma triglyceride, cholesterol, phospholipids, and total esterified fatty acids also increased after birth. The results suggest that during starvation in the neonate there is rapid mobilisation of fat from adipose tissue stores and a reduction in the peripheral utilisation of glucose. There was no evidence to suggest any impairment of fat mobilisation or metabolism even after starvation for 7 days. After surgical injury, these changes were accentuated because the rate of utilisation of fat was greater than that of mobilisation.[1]References
- The effects of starvation and surgical injury on the plasma levels of glucose, free fatty acids, and neutral lipids in newborn babies suffering from various congenital anomalies. Elphick, M.C., Wilkinson, A.W. Pediatr. Res. (1981) [Pubmed]
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