Early life stress and blood pressure levels in late adulthood

Alastalo, H., Raikkonen, K., Pesonen, A.K., Osmond, C., Heinonen, K., Kajantie, E. and Eriksson, J.G. (2013) Early life stress and blood pressure levels in late adulthood. Journal of Human Hypertension, 27 (2), 90-94. (doi:10.1038/jhh.2012.6). (PMID:22336905)

Abstract

Severe stress experienced in early life may have long-term consequences on adult physiological functions. We studied the long-term effects of separation on blood pressure levels in non-obese subjects who were separated temporarily in childhood from their parents during World War II (WWII). The original clinical study cohort consists of people born during 1934–1944 in Helsinki, Finland. This substudy includes 1361 non-obese subjects (body mass index <30?kg?m?2). Of these, 192 (14.1%) had been evacuated abroad during WWII. The remaining subjects served as controls. Blood pressure levels and use of blood pressure medication were studied. The separated subjects had significantly higher systolic blood pressure values than the non-separated (148.6+21.5 vs 142.2+19.6?mm?Hg, P<0.0001) in adult life. Those subjects separated in early childhood had markedly higher systolic and diastolic blood pressure values in adult life compared with the non-separated (154.6 vs 142.5?mm?Hg; 95% confidence interval (CI) 2.6–14.7; P<0.005 and 90.8 vs 87.7?mm?Hg; 95% CI 1.0–7.3; P<0.02, respectively). Systolic blood pressure was also higher in the group separated for a duration of <1 year (151.7 vs 142.2?mm?Hg; 95% CI 0.0–12.4; P<0.05) compared with the non-separated. Besides being separated, age at separation and duration of separation also influenced blood pressure levels in adult life. This could be due to early hormonal and metabolic programming, during plastic periods in early life, influencing blood pressure levels in adult life.

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Contributors

Author: C. Osmond

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