Seasonal variations of selected cardiovascular risk factors.
نویسنده
چکیده
This article reviews research on selected biomarkers of cardiovascular risk - cholesterol and other lipids, C-reactive protein (CRP), fibrinogen, homocysteine - in the attempt to determine the existence of a predictable seasonal chronobiological pattern of variation. Studies dating as far back as the 1930s have reported seasonal variations in cholesterol levels. Statistically significant seasonal changes in lipid levels have been found in individuals irrespective of the country where the research has been conducted, and irrespective of the age, sex, ethnicity, and baseline lipid levels of the study subjects. While not all studies have been in complete agreement on either the amplitude (degree of seasonal change) or month/s of highest lipid levels, a strong winter/summer difference has been found in most studies. Existing evidence for an independent effect of season in variation of CRP is weak. Studies have consistently reported significant seasonal variations in fibrinogen levels. While other biological factors clearly interact to affect fibrinogen variability, seasonality appears to be an independent source of variability. Evidence from several studies points to a lack of seasonal variability in homocysteine levels. Although seasonal variability is just one source of periodicity influencing biological function and assessments in clinical practice, for some biomarkers, including lipids and fibrinogen, it is a source of variability that warrants consideration prior to a decision to treat and in assessing response to interventions.
منابع مشابه
Spatial and Seasonal Trend of Trace Metals and Ecological Risk Assessment along Kanyakumari Coastal Sediments, Southern India
The concentration of selected trace metals (Fe, Cd, Cu, Pb, and Zn) in 30surface sediments were measured using Atomic Absorption Spectrometer to investigatethe spatial and seasonal variations of trace metals along Kanyakumari coast, India. Toassess the environmental risk of trace metals, enrichment factor, geo-accumulation index,pollution load index, and ecological risk index have been calculat...
متن کاملSpatial and Seasonal Trend of Trace Metals and Ecological Risk Assessment along Kanyakumari Coastal Sediments, Southern India
The concentration of selected trace metals (Fe, Cd, Cu, Pb, and Zn) in 30surface sediments were measured using Atomic Absorption Spectrometer to investigatethe spatial and seasonal variations of trace metals along Kanyakumari coast, India. Toassess the environmental risk of trace metals, enrichment factor, geo-accumulation index,pollution load index, and ecological risk index have been calculat...
متن کاملSalt mineralogy in a selected salorthid of texas high plains as a function of seasonal temperature variations
متن کامل
سهم تأثیر بالقوه برخی عوامل خطر تعدیل‌پذیر در بار بیماری‌های قلبی- عروقی در ایران: ارزیابی خطر مقایسه‌ای
Background: Increasing the prevalence of risk factors of cardiovascular diseases, emphasizes on health policy, priority setting and preventing cardiovascular diseases deaths. This study aimed to assess Potential Impact Fraction of modifying selected risk factors on burden of cardiovascular disease in Iran. Methods: To calculate Potential Impact Fraction (PIF) of risk factors WHO compa...
متن کاملPrevalence of Cardiovascular Risk Factors among Taxi Drivers in Yazd, Iran, 2016
Abstract Introduction: Cardiovascular diseases are the first cause of death in the worldwide. Taxi drivers are a high risk group for developing cardiovascular disease, due to exposure to unhealthy working conditions. The aim of this study was to assess the prevalence of cardiovascular risk factors among taxi drivers. Methods: This cross-sectional study in 2016, was conducted on 110 taxi drive...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Alternative medicine review : a journal of clinical therapeutic
دوره 10 4 شماره
صفحات -
تاریخ انتشار 2005