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The proportion of a wide range of fatty acids was studied in the plasma of 15 healthy newborn infants following a physiological pregnancy and delivery. The same measurements were done in seven healthy mothers (immediately after parturition) and the proportion of fatty acids was analysed in mixed umbilical cord blood (n = 7). The fatty acids were identified by gas chromatography as their methyl esters (FAME). In newborn infants the proportion of saturated fatty acids was found to be 42.3%, of monoene fatty acids 31.3% and of polyene fatty acids 25.4%; type n-6 fatty acids formed 13.9% and n-3 11.1%. The proportion of the various fatty acids in healthy maternal plasma was 37.9% (saturated), 34.4% (monoene) and 25.0% (polyene) respectively; type n-6 fatty acids formed 21.6% and type n-3 only 3.6%. The values in mixed cord blood were 44% (saturated FA), 34.8% (monoene FA) and 20% (polyene FA); group n-6 FA accounted for 17.4% and n-3 for only 2.1%. In the above three series we also described the sequence of the fatty acids present in the largest amounts. This is part of an extensive study, in a large series, of the commonest perinatal risks. We particularly draw attention to the high proportion of long-chain fatty acids (C 22 - C 26) in the plasma of healthy newborn infants. 相似文献
149.
In an in vitro study, TSH stimulated glycerol release from the subcutaneous adipose tissue of newborns, but had no effect on its release from the adipose tissue of adults. Hydrocortisone stimulated only NEFA release in newborns. Glucagone had no effect on either neonatal or adult adipose tissue. 相似文献