scholarly journals Circadian misalignment increases cardiovascular disease risk factors in humans

2016 ◽  
Vol 113 (10) ◽  
pp. E1402-E1411 ◽  
Author(s):  
Christopher J. Morris ◽  
Taylor E. Purvis ◽  
Kun Hu ◽  
Frank A. J. L. Scheer
Keyword(s):  
Risk Factors ◽  
Blood Pressure ◽  
Cardiovascular Disease ◽  
Shift Work ◽  
Disease Risk ◽  
Excretion Rate ◽  
Cardiovascular Disease Risk ◽  
Circadian Misalignment ◽  
Increased Risk ◽  
The Impact

Shift work is a risk factor for hypertension, inflammation, and cardiovascular disease. This increased risk cannot be fully explained by classic risk factors. One of the key features of shift workers is that their behavioral and environmental cycles are typically misaligned relative to their endogenous circadian system. However, there is little information on the impact of acute circadian misalignment on cardiovascular disease risk in humans. Here we show—by using two 8-d laboratory protocols—that short-term circadian misalignment (12-h inverted behavioral and environmental cycles for three days) adversely affects cardiovascular risk factors in healthy adults. Circadian misalignment increased 24-h systolic blood pressure (SBP) and diastolic blood pressure (DBP) by 3.0 mmHg and 1.5 mmHg, respectively. These results were primarily explained by an increase in blood pressure during sleep opportunities (SBP, +5.6 mmHg; DBP, +1.9 mmHg) and, to a lesser extent, by raised blood pressure during wake periods (SBP, +1.6 mmHg; DBP, +1.4 mmHg). Circadian misalignment decreased wake cardiac vagal modulation by 8–15%, as determined by heart rate variability analysis, and decreased 24-h urinary epinephrine excretion rate by 7%, without a significant effect on 24-h urinary norepinephrine excretion rate. Circadian misalignment increased 24-h serum interleukin-6, C-reactive protein, resistin, and tumor necrosis factor-α levels by 3–29%. We demonstrate that circadian misalignment per se increases blood pressure and inflammatory markers. Our findings may help explain why shift work increases hypertension, inflammation, and cardiovascular disease risk.

scholarly journals Circadian Misalignment Increases C-Reactive Protein and Blood Pressure in Chronic Shift Workers

2017 ◽  
Vol 32 (2) ◽  
pp. 154-164 ◽  
Author(s):  
Christopher J. Morris ◽  
Taylor E. Purvis ◽  
Joseph Mistretta ◽  
Kun Hu ◽  
Frank A. J. L. Scheer
Keyword(s):  
Risk Factors ◽  
Blood Pressure ◽  
Cardiovascular Disease ◽  
Disease Risk ◽  
Cardiovascular Disease Risk ◽  
C Reactive Protein ◽  
Shift Workers ◽  
Circadian Misalignment ◽  
Reactive Protein ◽  
Hs Crp

Shift work is a risk factor for inflammation, hypertension, and cardiovascular disease. This increased risk cannot be fully explained by classical risk factors. Shift workers’ behavioral and environmental cycles are typically misaligned relative to their endogenous circadian system. However, there is little information on the impact of acute circadian misalignment on cardiovascular disease risk in shift workers, independent of differences in work stress, food quality, and other factors that are likely to differ between night and day shifts. Thus, our objectives were to determine the independent effect of circadian misalignment on 24-h high-sensitivity C-reactive protein (hs-CRP; a marker of systemic inflammation) and blood pressure levels—cardiovascular disease risk factors—in chronic shift workers. Chronic shift workers undertook two 3-day laboratory protocols that simulated night work, comprising 12-hour inverted behavioral and environmental cycles (circadian misalignment) or simulated day work (circadian alignment), using a randomized, crossover design. Circadian misalignment increased 24-h hs-CRP by 11% ( p < 0.0001). Circadian misalignment increased 24-h systolic blood pressure (SBP) and diastolic blood pressure (DBP) by 1.4 mmHg and 0.8 mmHg, respectively (both p ≤ 0.038). The misalignment-mediated increase in 24-h SBP was primarily explained by an increase in SBP during the wake period (+1.7 mmHg; p = 0.017), whereas the misalignment-mediated increase in 24-h DBP was primarily explained by an increase in DBP during the sleep opportunity (+1.8 mmHg; p = 0.005). Circadian misalignment per se increases hs-CRP and blood pressure in shift workers. This may help explain the increased inflammation, hypertension, and cardiovascular disease risk in shift workers.

scholarly journals Prediction of Lifetime Risk of Cardiovascular Disease Deaths Stratified by Sex in the Japanese Population

2021 ◽  
Author(s):  
Yukiko Imai ◽  
Sachiko Mizuno Tanaka ◽  
Michihiro Satoh ◽  
Takumi Hirata ◽  
Yoshitaka Murakami ◽  
...  
Keyword(s):  
Risk Factors ◽  
Blood Pressure ◽  
Cardiovascular Disease ◽  
Japanese Population ◽  
Disease Risk ◽  
Cardiovascular Disease Risk ◽  
Smoking Habit ◽  
Lifetime Risk ◽  
Risk Of Death ◽  
The Impact

Background Lifetime risk is an informative estimate for driving lifestyle and behavioral changes especially for young adults. The impact of composite risk factors for cardiovascular disease on lifetime risk stratified by sex has not been investigated in the Japanese population, which has a much lower mortality of coronary heart disease compared with the Western population. We aimed to estimate lifetime risk of death from cardiovascular disease attributable to traditional risk factors. Methods and Results We analyzed pooled individual data from the Evidence for Cardiovascular Prevention from Observational Cohorts in a Japanese cohort study. A modified Kaplan–Meier approach was used to estimate the remaining lifetime risk of cardiovascular death. In total, 41 002 Japanese men and women with 537 126 person‐years of follow‐up were included. The lifetime risk at the index‐age of 45 years for those with optimal risk factors (total cholesterol <4.65 mmol/L, systolic blood pressure <120 mm Hg, diastolic blood pressure <80 mm Hg, absence of diabetes, and absence of smoking habit) was lower compared with the highest risk profile of ≥2 risk factors (6.8% [95% CI, 0%–11.9%] versus 19.4% [16.7%–21.4%] for men and 6.9% [1.2%–11.5%] versus 15.4% [12.6%–18.1%] for women). Conclusions The magnitude and the number of risk factors were progressively associated with increased lifetime risk even in individuals in early adulthood who tend to have low short‐term risk. The degree of established cardiovascular risk factors can be converted into lifetime risk. Our findings may be useful for risk communication in the early detection of future cardiovascular disease risk.

scholarly journals Nutrients in Fish and Possible Associations with Cardiovascular Disease Risk Factors in Metabolic Syndrome

Nutrients ◽  
2018 ◽  
Vol 10 (7) ◽  
pp. 952 ◽  
Author(s):  
Christine Tørris ◽  
Milada Cvancarova Småstuen ◽  
Marianne Molin
Keyword(s):  
Risk Factors ◽  
Cardiovascular Disease ◽  
Metabolic Syndrome ◽  
Fatty Acids ◽  
Fish Consumption ◽  
Disease Risk ◽  
Cardiovascular Disease Risk ◽  
Protective Role ◽  
Cvd Risk ◽  
The Impact

Non-communicable diseases (NSDs) are responsible for two-thirds of all deaths globally, whereas cardiovascular disease (CVD) alone counts for nearly half of them. To reduce the impact of CVD, targeting modifiable risk factors comprised in metabolic syndrome (e.g., waist circumference, lipid profile, blood pressure, and blood glucose) is of great importance. Beneficial effects of fish consumption on CVD has been revealed over the past decades, and some studies suggest that fish consumption may have a protective role in preventing metabolic syndrome. Fish contains a variety of nutrients that may contribute to health benefits. This review examines current recommendations for fish intake as a source of various nutrients (proteins, n-3 fatty acids, vitamin D, iodine, selenium, and taurine), and their effects on metabolic syndrome and the CVD risk factors. Fatty fish is recommended due to its high levels of n-3 fatty acids, however lean fish also contains nutrients that may be beneficial in the prevention of CVD.

scholarly journals The Impact of Obesity on Cardiovascular Disease Risk Factors and Subclinical Vascular Disease

2008 ◽  
Vol 168 (9) ◽  
pp. 928 ◽  
Author(s):  
Gregory L. Burke ◽  
Alain G. Bertoni ◽  
Steven Shea ◽  
Russell Tracy ◽  
Karol E. Watson ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cardiovascular Disease ◽  
Vascular Disease ◽  
Disease Risk ◽  
Cardiovascular Disease Risk ◽  
Cardiovascular Disease Risk Factors ◽  
Subclinical Vascular Disease ◽  
The Impact

scholarly journals Vitamin D Receptor Activation Mitigates the Impact of Uremia on Endothelial Function in the 5/6 Nephrectomized Rats

2010 ◽  
Vol 2010 ◽  
pp. 1-10 ◽  
Author(s):  
J. Ruth Wu-Wong ◽  
William Noonan ◽  
Masaki Nakane ◽  
Kristin A. Brooks ◽  
Jason A. Segreti ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Cardiovascular Disease ◽  
Chronic Kidney Disease ◽  
Heart Rate ◽  
Vitamin D ◽  
Endothelial Function ◽  
Disease Risk ◽  
Cardiovascular Disease Risk ◽  
Receptor Activation ◽  
The Impact

Endothelial dysfunction increases cardiovascular disease risk in chronic kidney disease (CKD). This study investigates whether VDR activation affects endothelial function in CKD. The 5/6 nephrectomized (NX) rats with experimental chronic renal insufficiency were treated with or without paricalcitol, a VDR activator. Thoracic aortic rings were precontracted with phenylephrine and then treated with acetylcholine or sodium nitroprusside. Uremia significantly affected aortic relaxation (% in NX rats versus % in SHAM at 30 M acetylcholine). The endothelial-dependent relaxation was improved to –%, –%, and –% in NX rats treated with paricalcitol at 0.021, 0.042, and 0.083 g/kg for two weeks, respectively, while paricalcitol at 0.042 g/kg did not affect blood pressure and heart rate. Parathyroid hormone (PTH) suppression alone did not improve endothelial function since cinacalcet suppressed PTH without affecting endothelial-dependent vasorelaxation. N-omega-nitro-L-arginine methyl ester completely abolished the effect of paricalcitol on improving endothelial function. These results demonstrate that VDR activation improves endothelial function in CKD.

scholarly journals Effects of Bilberry Supplementation on Metabolic and Cardiovascular Disease Risk

Molecules ◽  
2020 ◽  
Vol 25 (7) ◽  
pp. 1653
Author(s):  
Sze Wa Chan ◽  
Brian Tomlinson
Keyword(s):  
Oxidative Stress ◽  
Risk Factors ◽  
Cardiovascular Disease ◽  
Metabolic Syndrome ◽  
Vision Loss ◽  
Disease Risk ◽  
Cardiovascular Disease Risk ◽  
Cardiovascular Complications ◽  
Increased Risk ◽  
Potential Benefits

Metabolic syndrome is a cluster of interrelated conditions that is associated with an increased risk of cardiovascular disease (CVD) and type 2 diabetes mellitus (T2DM). Oxidative stress may impair normal physiological functions, leading to various illnesses. T2DM is considered to be associated with increased oxidative stress, inflammation, and dyslipidemia, which may play a significant role in the development of cardiovascular complications, cancer and vision loss through cataracts and retinopathy. While conventional therapies are a cornerstone for the management of the major risk factors of metabolic syndrome, increasing antioxidant defense by increasing intake of antioxidant-rich foods may improve long term prospects in CVD, obesity and T2DM. Bilberry (Vaccinium myrtillus L.) is one of the richest natural sources of anthocyanins which give berries their red/purple/blue coloration. Anthocyanins are powerful antioxidants and are reported to play an important role in the prevention of metabolic disease and CVD as well as cancer and other conditions. This review focuses on the potential effects of bilberry supplementation on metabolic and cardiovascular risk factors. Although there is evidence to support the use of bilberry supplementation as part of a healthy diet, the potential benefits from the use of bilberry supplementation in patients with T2DM or CVD needs to be clarified in large clinical trials.

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