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Biomedical subjects

J F Dunn

Publications and source records attributed to J F Dunn.

92 records · Page 6Linked to original sources

Caretaking in the first year of life: the role of fathers, and mothers' social isolation.

Data are presented from a follow-up study of some 80 normal first or second born children on the extent of father participation childrearing. Though at both 30 and 60 weeks most fathers played regularly with their children, only a minority regularly undertook care-taking activities. Fathers were more participant at 60 weeks than 30 weeks especially with their daughters. No clear social class differences were found. The number of visitors to the home and excursions by mothers showed that social isolation during the day was quite widespread. Social class I and II families were less likely to have relatives in the neighbourhood and so received fewer visits and went out less often. Mothers going out without children showed less marked social class differences. Mothers of children who woke regularly at night and showed more 'difficult' behaviour went out without their children less often than the mothers of children not classified in this way.

Father-Child Relations↗

Association of decreased sex hormone binding globulin and cardiovascular risk factors.

Sex hormones play a major role in determining the risk of cardiovascular disease. While earlier studies have shown that reduced sex hormone binding globulin (SHBG) is associated with increased glucose and insulin concentrations in premenopausal women, few data exist on the relationship of SHBG to other cardiovascular risk factors in women. We hypothesized that decreased SHBG would be associated with an atherogenic pattern of cardiovascular risk factors. We measured total testosterone, total estradiol and SHBG, lipids and lipoproteins, glucose and insulin, and systolic and diastolic blood pressure in 96 premenopausal women. Although total testosterone and total estradiol were not related to cardiovascular risk factors, SHBG was negatively associated with triglyceride concentration (r = -0.37) and positively associated with high density lipoprotein cholesterol (HDLC) (r = 0.42). After adjustment for overall adiposity (body mass index) and upper body adiposity (as measured by the ratio of waist-to-hip circumferences), SHBG was still positively related to HDLC, but not to triglyceride. Adjustment for insulin abolished the relationship between SHBG and triglyceride levels, but did not alter the relationship between SHBG and HDLC. Sex hormones were not related to either systolic or diastolic blood pressure.

Adult↗