Related Experiment Videos
Serum lipid concentration in newborns from various ethnic groups in Israel
Insights
Serum cholesterol levels at birth are not a reliable indicator for detecting familial hypercholesterolemia early. Most hypercholesterolemic newborns normalize cholesterol by six months, regardless of ethnicity.
Area of Science:
- Pediatric Medicine
- Clinical Biochemistry
- Genetics
Background:
- Familial hypercholesterolemia (FH) is a genetic disorder causing high LDL cholesterol from birth.
- Early detection of FH is crucial for timely intervention and cardiovascular disease prevention.
- Neonatal screening for hypercholesterolemia is a potential strategy for early FH identification.
Purpose of the Study:
- To evaluate the predictive value of cord blood serum cholesterol for identifying infants who may have familial hypercholesterolemia.
- To assess the persistence of hypercholesterolemia from birth through 18 months of age in a newborn cohort.
Main Methods:
- Serum cholesterol was measured in 438 newborns' cord blood.
- Follow-up cholesterol measurements were taken at 6 and 18 months of age.
- Prevalence of hypercholesterolemia at birth and its persistence were analyzed across ethnic groups.
Main Results:
- The prevalence of hypercholesterolemia at birth was 8%.
- Of 36 infants initially identified as hypercholesterolemic, 28 (77.8%) had normalized cholesterol levels by 6 months.
- No significant ethnic differences in cholesterol levels or persistence were observed.
Conclusions:
- Neonatal serum cholesterol levels appear to have limited value for the early and accurate detection of familial hypercholesterolemia.
- Transient neonatal hypercholesterolemia is common, with most cases resolving spontaneously within the first year.
- Alternative or supplementary screening methods may be necessary for effective early FH detection in newborns.
Abstract:
Serum cholesterol was determined in the cord blood of 438 newborns and repeated on venous samples from the same infants at the ages of 6 and 18 months. Of 36 infants who were originally defined as hypercholesterolemic, 28 had normal values by the age of six months. The prevalence of hypercholesterolemia at birth was 8%. No differences were noted among the five ethnic groups examined. The results suggest that serum cholesterol level at birth is of limited value for the early detection of familial hypercholesterolemia.