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  • 1
    ISSN: 1432-0428
    Keywords: Type 2 (non-insulin-dependent) diabetes mellitus ; hypertension ; hyperlipidaemia ; syndrome X ; reduced fetal growth
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two follow-up studies were carried out to determine whether lower birthweight is related to the occurrence of syndrome X — Type 2 (non-insulin-dependent) diabetes mellitus, hypertension and hyperlipidaemia. The first study included 407 men born in Hertfordshire, England between 1920 and 1930 whose weights at birth and at 1 year of age had been recorded by health visitors. The second study included 266 men and women born in Preston, UK, between 1935 and 1943 whose size at birth had been measured in detail. The prevalence of syndrome X fell progressively in both men and women, from those who had the lowest to those who had the highest birthweights. Of 64-year-old men whose birthweights were 2.95 kg (6.5 pounds) or less, 22% had syndrome X. Their risk of developing syndrome X was more than 10 times greater than that of men whose birthweights were more than 4.31 kg (9.5 pounds). The association between syndrome X and low birthweight was independent of duration of gestation and of possible confounding variables including cigarette smoking, alcohol consumption and social class currently or at birth. In addition to low birthweight, subjects with syndrome X had small head circumference and low ponderal index at birth, and low weight and below-average dental eruption at 1 year of age. It is concluded that Type 2 diabetes and hypertension have a common origin in sub-optimal development in utero, and that syndrome X should perhaps be re-named “the small-baby syndrome”.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0428
    Keywords: Impaired glucose tolerance ; non-insulin-dependent diabetes mellitus ; fetal growth ; ponderal index at birth ; placental weight to birthweight ratio
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A follow-up study was carried out to determine whether reduced fetal growth is associated with the development of impaired glucose tolerance in men and women aged 50 years. Standard oral glucose tolerance tests were carried out on 140 men and 126 women born in Preston (Lancashire, UK) between 1935 and 1943, whose size at birth had been measured in detail. Those subjects found to have impaired glucose tolerance or non-insulin-dependent diabetes mellitus had lower birthweight, a smaller head circumference and were thinner at birth. They also had a higher ratio of placental weight to birthweight. The prevalence of impaired glucose tolerance or diabetes fell from 27% in subjects who weighed 2.50 kg (5.5 pounds) or less at birth to 6% in those who weighed more than 3.41 kg (7.5 pounds) (p 〈 0.002 after adjusting for body mass index). Plasma glucose concentrations taken at 2-h in the glucose tolerance test fell progressively as birthweight increased (p 〈 0.004), as did 2-h plasma insulin concentrations (p 〈 0.001). The trends with birthweight were independent of duration of gestation and must therefore be related to reduced rates of fetal growth. These findings confirm the association between impaired glucose tolerance in adult life and low birthweight previously reported in Hertfordshire (UK), and demonstrate it in women as well as men. It is suggested that the association reflects the long-term effects of reduced growth of the endocrine pancreas and other tissues in utero. This may be a consequence of maternal undernutrition.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1433-2965
    Keywords: Key words:Anthropometry – Bone loss – Epidemiology – Lifestyle – Osteoporosis – Prospective
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract: While several studies have described the rate and pattern of involutional bone loss in women, far less information is available for men. Furthermore, the roles of lifestyle and body build in determining bone loss rate in both sexes have been largely extrapolated from cross-sectional studies. We addressed this issue in a population-based longitudinal study which sought to ascertain rates of bone loss at the femoral neck and lumbar spine in a cohort of men and women aged 60–75 years at baseline, and to relate this loss to anthropometric and lifestyle variables. We additionally investigated the capacity of biochemical markers of bone turnover to predict bone loss rates in these subjects. Women lost bone at all sites; this ranged from 0.20%/year at the lumbar spine to 1.43%/year at the femoral trochanteric region. By contrast, men lost only 0.20%/year at the trochanteric region, and gained at the lumbar spine (0.33%/year) and at Ward’s triangle (0.27%/year) over the 4-year period. Anthropometric measurements were associated with bone loss in both sexes; lower baseline body mass index (BMI) and a greater rate of loss of adiposity over the follow-up period were both associated with greater bone loss at all proximal femoral sites. These attained statistical significance after Bonferroni correction at the total proximal femur among both men (r= 0.29), p〈0.01) and women (r= 0.31, p〈0.05). Lifestyle factors associated with lower rates of bone loss (after adjustment for BMI) included alcohol consumption at the femoral neck among women (p= 0.007) and physical activity at the lumbar spine among men (p = 0.05). Serum parathyroid hormone, 25-hydroxyvitamin D and biochemical markers of bone turnover did not predict bone loss after adjustment for adiposity.
    Type of Medium: Electronic Resource
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