Shortness at birth is associated with insulin resistance in pre-pubertal Jamaican children.
OBJECTIVE
To investigate the relationship between anthropometry at birth and glucose/insulin metabolism in childhood using the response to an oral glucose challenge.


METHODS
Four hundred mother/child pairs on whom gestational and birth data were available were studied. After an overnight fast, anthropometric measurements were made on the children and an oral glucose tolerance test performed. The plasma concentrations of insulin, pro-insulin and 32-33 split pro-insulin were also measured. Skinfold thicknesses were used to calculate percentage body fat and fat mass was derived from the percentage fat and absolute weight.


RESULTS
The mean age of the children was 8 y (range 7.5-10.5), and six exhibited impaired glucose tolerance based on WHO criteria. Insulin concentration 120 min after the oral glucose load (a measure of insulin resistance) was inversely related to length at birth (P<0.005). The children who were in the shortest quartile at birth and were heaviest at 8 y old had the highest insulin concentration.


CONCLUSIONS
Shortness at birth is related to insulin resistance. Such insensitivity to the action of insulin is greater in heavier children.
Bennett
F
F
Tropical Metabolism Research Unit, University of the West Indies, Kingston, Jamaica, West Indies.
Watson-Brown
C
C
Thame
M
M
Wilks
R
R
Osmond
C
C
Hales
N
N
Barker
D
D
Forrester
T
T
D001786:Blood Glucose / Q000378:metabolism*; D001827:Body Height / Q000502:physiology*; D001835:Body Weight / Q000502:physiology*; D002648:Child; D005215:Fasting; D005260:Female; D018149:Glucose Intolerance; D005951:Glucose Tolerance Test; D006801:Humans; D007231:Infant, Newborn; D007328:Insulin / Q000097:blood*; D007333:Insulin Resistance; D007563:Jamaica; D008297:Male; D009765:Obesity / Q000097:blood / Q000503:physiopathology
D001786:Blood Glucose; D007328:Insulin