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An independent effect of parental lipids on the offspring lipid levels in a cohort of adolescents with type 1 diabetes
Author(s) -
Marcovecchio M Loredana,
Tossavainen Paivi H,
Heywood James JN,
Dalton R Neil,
Dunger David B
Publication year - 2012
Publication title -
pediatric diabetes
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.678
H-Index - 75
eISSN - 1399-5448
pISSN - 1399-543X
DOI - 10.1111/j.1399-5448.2012.00860.x
Subject(s) - medicine , offspring , cohort , type 2 diabetes , diabetes mellitus , type 1 diabetes , cohort study , endocrinology , pregnancy , genetics , biology
Background Genetic factors modulate lipid levels and an intrafamilial aggregation of abnormal lipid profiles has been reported in the general population. As dyslipidemia is common among people with diabetes and has been related to diabetic nephropathy, we investigated whether parental lipid levels were related to lipids and albumin excretion in young offspring with childhood‐onset type 1 diabetes ( T 1 D ). Methods Non‐fasting blood samples were collected from 895 offspring, 808 mothers and 582 fathers. Total cholesterol ( TC ), triglycerides ( TG ), high‐density lipoprotein cholesterol ( HDL‐C ), low‐density lipoprotein cholesterol ( LDL‐C ) and non‐ HDL‐C were measured. Three early morning urinary albumin–creatinine ratios ( ACR ), hemoglobin A 1 C ( HbA 1c) and anthropometric parameters were also assessed. Results The offspring's mean age (±SD) was 14.5 ± 2.2 yr, mean diabetes duration 5.5 ± 3.7 yr; the fathers' age was 45.7 ± 6.1 yr and the mothers' age was 42.8 ± 5.5 yr. After adjusting for the offspring age, gender, body mass index, HbA 1c, maternal ( TC : β = 0.242; TG : β = 0.152; HDL‐C : β = 0.285; LDL‐C : β = 0.278; non‐ HDL‐C : β = 0.253; all p < 0.001) and paternal lipid levels ( TC : β = 0.188; TG : β = 0.108; HDL‐C : β = 0.253; LDL‐C : β = 0.187; non‐ HDL‐C : β = 0.173; all p < 0.001) were significantly associated with the offspring's lipid parameters. In contrast, no significant association was found between parental lipid levels and the offspring's ACR . Conclusions In the present study, parental lipid levels were independently associated with the same traits in the offspring, suggesting a role of genetic influences and/or shared environmental factors in modulating the metabolic profile of adolescents with T 1 D . In contrast, there was no significant association between parental lipid levels and the offspring's albumin excretion.