title: Seasonality of hypertension.
abstract: In this study, a group of controls and patients with essential hypertension were followed up for 1 year. Four measurements at different day temperatures were performed. In each visit, blood pressure, serum total cholesterol, and high-density lipoprotein cholesterol (HDL-C) were measured. The results showed a significant inverse relationship between mean blood pressure and serum total cholesterol levels with day temperature, while a direct relationship was observed for HDL-C value. These results suggest that in areas where significant changes in day temperature and daylight duration exist at different times of the year, blood pressure, serum cholesterol, and HDL-C levels change accordingly in a cycle with higher blood pressure and serum total cholesterol and lower HDL-C values in the coldest season.
authors.affiliation: Department of Biochemistry, Ninevah College of Medicine, University of Mosul, Iraq. yassar_altamer@yahoo.co.uk
authors.forename: Yassar Y
authors.initials: YY
authors.lastname: Al-Tamer
authors.forename: Jasim M T
authors.initials: JM
authors.lastname: Al-Hayali
authors.forename: Eman A H
authors.initials: EA
authors.lastname: Al-Ramadhan
mesh_terms: D001794:Blood Pressure / Q000502:physiology*; D016022:Case-Control Studies; D002784:Cholesterol / Q000097:blood*; D008076:Cholesterol, HDL / Q000097:blood; D005260:Female; D006801:Humans; D006973:Hypertension / Q000097:blood / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D012621:Seasons; D013696:Temperature
chemical_list: D008076:Cholesterol, HDL; D002784:Cholesterol