In this thesis we reported our investigations of the relationship between soil-transmitted helminths (STH) and a number of outcomes, in particular malaria, insulin resistance (a marker for type-2... Show moreIn this thesis we reported our investigations of the relationship between soil-transmitted helminths (STH) and a number of outcomes, in particular malaria, insulin resistance (a marker for type-2 diabetes (T2D)) and atherosclerosis (a marker for cardiovascular diseases (CVD)) on Flores island, Indonesia. In the study on Flores Island, the use of albendazole as a single dose at three monthly intervals decreased helminth infections significantly. However, this intensive deworming could not eliminate helminth infections. Despite no effect on malaria parasitemia and clinical symptoms was found, we noted that in vitro immune responses were improved after albendazole treatment and significant increases in malaria-specific and mitogen-induced tumor necrosis factor and interferon _ cytokine production were observed. We also reported that helminth infections are associated with improved insulin sensitivity and lower risk factors for CVD. A possible approach to confirm our results will be a long-term, well-powered, placebo controlled (adequate) anthelminthic trials to investigate asymptomatic malaria (in area where clinical malaria is highly prevalent); as well as to study whether alleviation of helminthic pressure is inversely correlated with anti-inflammation, lipid levels and insulin sensitivity, and therefore leads to an accelerated development of T2D and CVD. Show less
This thesis discusses the metabolic and endocrine characteristics of long-lived Dutch families. We found that familial longevity is marked by low thyroid function and preserved insulin senitivity.... Show moreThis thesis discusses the metabolic and endocrine characteristics of long-lived Dutch families. We found that familial longevity is marked by low thyroid function and preserved insulin senitivity. The second part of this thesis adresses the Gompertz law of mortality as an estimate of the rate of senescence Show less
