Brendan Stevenson

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Lowering of the elevated plasma FFA concentration in 18- 24-h fasted rats with nicotinic acid (NA) caused complete ablation of subsequent glucose-stimulated insulin secretion (GSIS). Although the effect of NA was reversed when the fasting level of total FFA was maintained by coinfusion of soybean oil or lard oil (plus heparin), the more saturated animal fat(More)
We asked whether the well known starvation-induced impairment of glucose-stimulated insulin secretion (GSIS) seen in isolated rat pancreas preparations also applies in vivo. Accordingly, fed and 18-24-h-fasted rats were subjected to an intravenous glucose challenge followed by a hyperglycemic clamp protocol, during which the plasma-insulin concentration was(More)
Lowering of the plasma FFA level in intact fasted rats by infusion of nicotinic acid (NA) caused essentially complete ablation of insulin secretion (IS) in response to a subsequent intravenous bolus of arginine, leucine, or glibenclamide (as previously found using glucose as the beta-cell stimulus). However, in all cases, IS became supranormal when a high(More)
In 2005 the Health, Work, and Retirement (HWR) Longitudinal Study was established at Massey University in order to identify the later-midlife factors that lay the basis for community participation, independence, and health in later life. Information was collected via postal questionnaire on physical and mental health, psychosocial factors, work and(More)
OBJECTIVES We examined the interrelationships between ethnicity, gender, and caregiving on the health of older New Zealanders. We hypothesized that those providing higher levels of care and more care across time would have poorer health outcomes and that these relationships would be moderated by ethnicity and gender. METHOD A representative sample of(More)
OBJECTIVES To use an ecological model of ageing (Berkman, Glass, Brissette, & Seeman, 2000) which includes upstream social context factors and downstream social support factors to examine the effects of social networks on health. METHOD Postal survey responses from a representative population sample of New Zealanders aged 55 to 70 years (N = 6,662). (More)
This qualitative, exploratory, and descriptive survey was undertaken to identify benefits and disadvantages of the preceptor role as perceived by nurse preceptors. Information regarding rewards preceptors perceived as desirable also was obtained. Findings from this study can be used to develop preceptor programs that increase job satisfaction for preceptors(More)
Owing to an ageing population there is growing interest in research to improve the health of older New Zealanders. To facilitate the use of the internationally used SF-36 (version 2) measure of health and quality of life for this work in New Zealand we provide norms and comparative data from the first wave in a longitudinal study of a representative sample(More)