IMPORTANCE Estimates of lifetime risk may help raise awareness of the extent to which educational inequalities are associated with risk of cardiovascular disease (CVD).OBJECTIVE To estimate lifetime risks of CVD according to categories of educational attainment.DESIGN, SETTING, AND PARTICIPANTS Participants were followed from 1987 through December 31, 2013. All CVD events (coronary heart disease, heart failure, and stroke) were confirmed by physician review and International Classification of Diseases codes. A total of 13 948 whites and African Americans who were 45 to 64 years old and free of CVD at baseline were included from 4 US communities
We have recently suggested that the brain histamine has an inhibitory role on the behavioral effects of methamphetamine by pharmacological studies. In this study, we used the histidine decarboxylase gene knockout mice and measured the spontaneous locomotor activity, the changes of locomotion by single and repeated administrations of methamphetamine, and the contents of brain monoamines and amino acids at 1 h after a single administration of methamphetamine. In the histidine decarboxylase gene knockout mice, spontaneous locomotor activity during the dark period was significantly lower than in the wild-type mice. Interestingly, methamphetamine-induced locomotor hyperactivity and behavioral sensitization were facilitated more in the histidine decarboxylase gene knockout mice. In the neurochemical study, noradrenaline and O-phosphoserine were decreased in the midbrain of the saline-treated histidine decarboxylase gene knockout mice. On the other hand, single administration of methamphetamine decreased GABA content of the midbrain of the wild-type mice, but did not alter that of histidine decarboxylase gene knockout mice. These results suggest that the histamine neuron system plays a role as an awakening amine in concert with the noradrenaline neuron system, whereas it has an inhibitory role on the behavioral effects of methamphetamine through the interaction with the GABAergic neuron system.
The Circulatory Risk in Communities Study (CIRCS) is an ongoing community-based epidemiological study of lifestyle-related disease involving dynamic prospective cohorts of approximately 12,000 adults from five communities of Japan: Ikawa, Ishizawa and Kita-Utetsu (Akita Prefecture), Minami-Takayasu (Osaka Prefecture), Noichi (Kochi Prefecture), and Kyowa (Ibaraki Prefecture). One of the most notable features of CIRCS is that it is not only an observational cohort study to identify risk factors for cardiovascular diseases (CVD), such as stroke, coronary heart disease, and sudden cardiac death, but it also involves prevention programs for CVD. Using basic, clinical, epidemiological, and statistical techniques, CIRCS has clarified characteristics of CVD and the related risk factors to develop specific methodologies towards CVD prevention in Japanese middle-aged or older adults for more than half a century.
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