Acetylcarnitine and free carnitine in body fluids before and after birth

M. Novak, P. B. Wieser, M. Buch, P. Hahn

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

The acetylcarnitine concentration in amniotic fluid fell significantly between 33 and 37 and 40 weeks of gestation. It was significantly higher in samples that had a low lecithin to sphingomyelin ratio. The acetylcarnitine content of tracheal fluid was higher in samples obtained from premature newborns. The major excretory form of carnitine is the acetate ester and only in adults does the urine contain significant amounts of free carnitine. The level of acetylcarnitine in plasma significantly increases after the first day of life; there was no difference in the plasma levels of carnitine between full-term and premature newborns. Plasma-free carnitine and acetylcarnitine levels were significantly lower in infants who were receiving a soybean-based formula. A positive correlation was found between the plasma level of ketone bodies and that of acetylcarnitine. A characteristic of early postnatal adaptation in human newborns is a high dependence on the utilization of fatty acids derived from endogenous sources and increasingly from digested milk triglycerides. This essential energy-producing mechanism seems to be facilitated by carnitine, of which a considerable amount is derived from milk.

Original languageEnglish
Pages (from-to)10-15
Number of pages6
JournalPediatric Research
Volume13
Issue number1
StatePublished - Jan 1 1979
Externally publishedYes

Fingerprint

Acetylcarnitine
Carnitine
Body Fluids
Parturition
Newborn Infant
Milk
Ketone Bodies
Sphingomyelins
Lecithins
Amniotic Fluid
Soybeans
Esters
Triglycerides
Acetates
Fatty Acids
Urine
Pregnancy

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health

Cite this

Novak, M., Wieser, P. B., Buch, M., & Hahn, P. (1979). Acetylcarnitine and free carnitine in body fluids before and after birth. Pediatric Research, 13(1), 10-15.

Acetylcarnitine and free carnitine in body fluids before and after birth. / Novak, M.; Wieser, P. B.; Buch, M.; Hahn, P.

In: Pediatric Research, Vol. 13, No. 1, 01.01.1979, p. 10-15.

Research output: Contribution to journalArticle

Novak, M, Wieser, PB, Buch, M & Hahn, P 1979, 'Acetylcarnitine and free carnitine in body fluids before and after birth', Pediatric Research, vol. 13, no. 1, pp. 10-15.
Novak M, Wieser PB, Buch M, Hahn P. Acetylcarnitine and free carnitine in body fluids before and after birth. Pediatric Research. 1979 Jan 1;13(1):10-15.
Novak, M. ; Wieser, P. B. ; Buch, M. ; Hahn, P. / Acetylcarnitine and free carnitine in body fluids before and after birth. In: Pediatric Research. 1979 ; Vol. 13, No. 1. pp. 10-15.
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