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Wang P, Jiang X, Tan Q, Du S, Shi D. Meal timing of dietary total antioxidant capacity and its association with all-cause, CVD and cancer mortality: the US national health and nutrition examination survey, 1999-2018. Int J Behav Nutr Phys Act 2023; 20:83. [PMID: 37420213 DOI: 10.1186/s12966-023-01487-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 06/28/2023] [Indexed: 07/09/2023] Open
Abstract
BACKGROUND The association of the meal timing of dietary total antioxidant capacity (DAC) with mortality is unclear. We aimed to investigate the association between the meal timing of DAC and all-cause, cardiovascular disease (CVD), and cancer mortality in general adult populations. METHODS A total of 56,066 adults who participated in the US National Health and Nutrition Examination Survey (NHANES) from 1999 to 2018 were recruited for this study. Dietary intake (quantity and timing) was evaluated by nonconsecutive 24-h dietary recalls. The main exposure variables were the DAC across three meals (total, breakfast, lunch, and dinner; without coffee) and the difference between dinner and breakfast DAC (Δ = dinner-breakfast; without coffee). The outcomes were all-cause, CVD, and cancer mortality. The adjusted hazard ratios [aHRs] and 95% confidence intervals [CI] were imputed by Cox proportional hazards regression. RESULTS Among the 56,066 participants, there were 8566 deaths from any cause, including 2196 from CVD and 1984 from cancer causes. Compared to participants in the lowest quintiles of the total DAC, those in the highest quintiles had 34% and 27% decreased risks of all-cause and CVD mortality, respectively (all-cause mortality: aHRs 0.66 [95% CI 0.57-0.76]; CVD mortality: aHRs 0.73 [95% CI 0.57-0.94]). More importantly, participants in the highest quintiles of the dinner DAC, but not those in that of breakfast or lunch, had a 24% decrease in all-cause mortality (aHRs 0.76 [95% CI 0.67-0.87]) compared with those in the lowest quintiles. Inverse associations were further confirmed for Δ DAC (aHRs 0.84 [95% CI 0.74-0.96]). Above associations did not change when including DAC from snacks or tea. Mediation analysis showed that the total associations of total, dinner or Δ DACs with reduced all-cause mortality were 24%, 13% and 6%, respectively, mediated by serum CRP. Additionally, all-cause mortality was decreased by 7% in models replacing 10% breakfast DAC (aHRs 0.93 [95% CI 0.9-0.97]) with an equivalent proportion of dinner DAC. For cancer mortality, no statistical significance was detected in the adjusted models. CONCLUSIONS The findings emphasize the putative beneficial relationship of a diet rich in antioxidants and meal timing on serum CRP and all-cause mortality.
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Affiliation(s)
- Peng Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Chongqing Medical University, Chongqing, China
- Department of Epidemiology and Biostatistics, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Xuye Jiang
- Foundation Centre for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Qilong Tan
- Department of Epidemiology and Biostatistics, School of Public Health, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Shanshan Du
- Department of Epidemiology and Biostatistics, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China.
| | - Dan Shi
- Department of Nutrition and Food Hygiene, School of Public Health, Chongqing Medical University, Chongqing, China.
- Research Centre for Environment and Human Health, School of Public Health, Chongqing Medical University, Chongqing, China.
- Nutrition Innovation Platform-Sichuan and Chongqing, School of Public Health, Chongqing Medical University, Chongqing, China.
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Wu R, Jiang W, Sun Y, Wu L, Di Y, Wang J, Zhong S, Wang W. Indicators of Oxidative Stress in the Prediction of Coronary Artery Lesions in Patients With Kawasaki Disease. J Clin Rheumatol 2023; 29:126-131. [PMID: 36730421 DOI: 10.1097/rhu.0000000000001925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVES The aim of this study was to examine the clinical significance of oxidative stress (OS)-related indices, including inflammatory markers and lipid and platelet (PLT) parameter, in coronary artery lesions (CALs) in Kawasaki disease (KD). METHODS Clinical data of 952 KD patients diagnosed between January 2019 and March 2022 were collected and divided into CAL and NCAL groups. All the KD patients were randomly divided into training set and verification set. The univariate analysis and multivariate logistic regression analysis of training set were used to identify the OS-related independent risk factors of CALs, which were then used to construct a predictive nomogram. Calibration curve and receiver operating characteristic curve were used to evaluate the performance of the model. The predictive nomogram was further validated on verification set. RESULTS In the training set, 137 KD patients (18.0%) showed CALs. C-reactive protein, serum amyloid A, PLT count, monocyte-to-high-density lipoprotein (HDL) ratio, and PLT-to-lymphocyte ratio were significantly higher, whereas HDL was lower in the CAL group than the NCAL group. Increased C-reactive protein, serum amyloid A, PLT, and decreased HDL were identified as independent risk factors. The nomogram constructed using these factors showed satisfactory calibration degree and discriminatory power (the area under the curve, 0.887). In the verification set, the area under the curve was 0.795. CONCLUSION The predictive nomogram constructed using 4 OS-related risk factors associated with CALs in patients with KD could be a useful tool for early diagnosis of CALs in KD.
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Affiliation(s)
- Rouyi Wu
- From the School of Medicine, Ningbo University
| | - Wei Jiang
- Department of Pediatric Rheumatoid Immunity, Ningbo Women and Children's Hospital, Ningbo, Zhejiang, China
| | - Yangkai Sun
- From the School of Medicine, Ningbo University
| | - Ling Wu
- Department of Pediatric Rheumatoid Immunity, Ningbo Women and Children's Hospital, Ningbo, Zhejiang, China
| | - Yazhen Di
- Department of Pediatric Rheumatoid Immunity, Ningbo Women and Children's Hospital, Ningbo, Zhejiang, China
| | - Jiapei Wang
- Department of Pediatric Rheumatoid Immunity, Ningbo Women and Children's Hospital, Ningbo, Zhejiang, China
| | - Shiling Zhong
- Department of Pediatric Rheumatoid Immunity, Ningbo Women and Children's Hospital, Ningbo, Zhejiang, China
| | - Wenbo Wang
- From the School of Medicine, Ningbo University
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Fei Q, Tan Y, Yi M, Zhao W, Zhang Y. Associations between cardiometabolic phenotypes and levels of TNF-α, CRP, and interleukins in obstructive sleep apnea. Sleep Breath 2022; 27:1033-1042. [DOI: 10.1007/s11325-022-02697-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 07/08/2022] [Accepted: 08/02/2022] [Indexed: 10/15/2022]
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Sugiura T, Dohi Y, Takagi Y, Yokochi T, Yoshikane N, Suzuki K, Tomiishi T, Nagami T, Iwase M, Takase H, Seo Y, Ohte N. Examination of Large Artery Atherosclerosis could Reveal Small Artery Retinopathy in Untreated Middle-Aged Individuals. J Atheroscler Thromb 2022; 29:11-23. [PMID: 33239480 PMCID: PMC8737076 DOI: 10.5551/jat.59857] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
AIMS Small arteries can be visualized in the ocular fundus, and findings of retinopathy based on Scheie classification are often applied to evaluate the impact of hypertension and atherosclerosis. However, the relationship between damage in the large and small arteries has not been investigated sufficiently, especially in the early stages. The present study investigated possible associations between large artery atherosclerosis and small artery retinopathy in untreated middle-aged individuals. METHODS Untreated middle-aged workers undergoing periodic health check-ups (n=7,730, 45±8 years) were enrolled in this study. The absence or presence and extent of retinopathy were characterized by ophthalmologists as hypertensive (H0-4) and atherosclerotic grades (S0-4) based on Scheie classification. Large artery atherosclerosis was examined based on functional assessment of the cardio-ankle vascular index (CAVI) and morphological assessment of the carotid intima-media thickness (IMT) by ultrasound. RESULTS We found significant differences in CAVI and carotid IMT between individuals with and without hypertensive or atherosclerotic retinopathy. Multivariable regression analysis showed that the presence of hypertensive and atherosclerotic retinopathy was significantly associated with CAVI and carotid IMT. Logistic regression analysis with the endpoint of a hypertensive or atherosclerotic lesion revealed that CAVI and carotid IMT are independent determinants of retinopathy. CONCLUSIONS CAVI and carotid IMT were significantly associated with the presence of retinopathy based on Scheie classification in untreated middle-aged subjects, implying that atherosclerotic examination in large arteries could reveal early-stage small artery retinopathy.
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Affiliation(s)
- Tomonori Sugiura
- Department of Cardiology, Nagoya City University Graduate School of Medical Sciences.,Health Support Center WELPO, Toyota Motor Corporation
| | - Yasuaki Dohi
- Health Support Center WELPO, Toyota Motor Corporation.,Department of Internal Medicine, Faculty of Rehabilitation Sciences, Nagoya Gakuin University
| | - Yasuyuki Takagi
- Health Support Center WELPO, Toyota Motor Corporation.,Toyota Memorial Hospital
| | - Takashi Yokochi
- Health Support Center WELPO, Toyota Motor Corporation.,Midtown Clinic Meieki
| | | | - Kenji Suzuki
- Health Support Center WELPO, Toyota Motor Corporation
| | | | | | | | - Hiroyuki Takase
- Department of Cardiology, Nagoya City University Graduate School of Medical Sciences.,Department of Internal Medicine, Enshu Hospital
| | - Yoshihiro Seo
- Department of Cardiology, Nagoya City University Graduate School of Medical Sciences
| | - Nobuyuki Ohte
- Department of Cardiology, Nagoya City University Graduate School of Medical Sciences
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Obstructive Sleep Apnea and Circulating Biomarkers of Oxidative Stress: A Cross-Sectional Study. Antioxidants (Basel) 2020; 9:antiox9060476. [PMID: 32498324 PMCID: PMC7346202 DOI: 10.3390/antiox9060476] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 05/26/2020] [Accepted: 05/29/2020] [Indexed: 01/13/2023] Open
Abstract
Oxidative stress (OS) drives cardiometabolic diseases. Intermittent hypoxia consistently increases oxidative stress markers. Obstructive sleep apnea (OSA) patients experience intermittent hypoxia and an increased rate of cardiovascular disease, however, the impact of OSA on OS markers is not clear. The objective was to assess relationships between OSA severity and biomarker levels. Patients with suspected OSA referred for a polysomnogram (PSG) provided fasting blood sample. Plasma levels of 8-isoprostane, 8-hydroxydeoxyguanosine (8-OHdG), and superoxide dismutase (SOD) were measured. The relationship between OSA and OS was assessed both before and after controlling for confounders (age, sex, smoking history, history of cardiovascular disease, ethnicity, diabetes, statin usage, body mass index (BMI)). 402 patients were studied (68% male, mean age ± SD = 50.8 ± 11.8 years, apnea-hypopnea index (AHI) = 22.2 ± 21.6 events/hour, BMI = 31.62 ± 6.49 kg/m2). In a multivariable regression, the AHI significantly predicted 8-isoprostane levels (p = 0.0008) together with age and statin usage; AHI was not a predictor of 8-OHdG or SOD. Female sex (p < 0.0001) and no previous history of cardiovascular disease (p = 0.002) were associated with increased antioxidant capacity. Circulating 8-isoprostane levels may be a promising biomarker of the severity of oxidative stress in OSA patients. Prospective studies are needed to determine whether this biomarker is associated with long-term cardiometabolic complications in OSA.
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Sugiura T, Dohi Y, Takase H, Yamashita S, Tsuzuki Y, Ogawa S, Tanaka Y, Ohte N. Factors associated with longitudinal changes in serum concentrations of Mac-2 binding protein: A prospective 3-year observational study. Nutr Metab Cardiovasc Dis 2019; 29:1337-1344. [PMID: 31653515 DOI: 10.1016/j.numecd.2019.08.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 07/15/2019] [Accepted: 08/14/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND AND AIMS Mac-2 binding protein (M2BP) plays an important role in cell adhesion. In a recent cross-sectional study we reported that serum M2BP concentrations may reflect silent atherosclerosis. The aim of the present prospective follow-up study was to investigate possible relationships between changes in concentrations of M2BP and other factors over a >3-year period. METHODS AND RESULTS The present study enrolled subjects who visited Enshu hospital from 2014 to 2015 for a periodic physical check-up and then attended for another physical check-up after >3 years (n = 174). Factors affecting changes in M2BP concentrations were investigated at both baseline and follow-up. Subjects with liver dysfunction, a history of hepatic disease, malignant neoplasm, or cardiovascular events at baseline were excluded. Univariate and multivariate regression analyses showed that changes in serum M2BP concentrations during the follow-up period were significantly associated with changes in low-density lipoprotein cholesterol (LDL-C), triglyceride, and oxidative stress marker derivatives of reactive oxygen metabolites (d-ROM) concentrations. Moreover, the increase in LDL-C was significantly greater in subjects in whom M2BP concentrations increased during the follow-up period. Logistic regression analysis with an endpoint of increased M2BP revealed that increased LDL-C was an independent determinant of an increase in M2BP during the follow-up period. CONCLUSION During the observation period of >3 years, serum M2BP concentrations were increased in subjects who also exhibited increases in levels of metabolic parameters, especially LDL-C, and the oxidative stress marker d-ROM. These results support that serum M2BP reflects one of the contributors to the progression of silent atherosclerosis.
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Affiliation(s)
- Tomonori Sugiura
- Department of Cardiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
| | - Yasuaki Dohi
- Department of Internal Medicine, Faculty of Rehabilitation Science, Nagoya Gakuin University, Nagoya, Japan
| | - Hiroyuki Takase
- Department of Internal Medicine, Enshu Hospital, Hamamatsu, Japan
| | - Sumiyo Yamashita
- Department of Cardiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yuji Tsuzuki
- Department of Virology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Shintaro Ogawa
- Department of Virology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yasuhito Tanaka
- Department of Virology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Nobuyuki Ohte
- Department of Cardiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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Nakamura H, Tsujiguchi H, Kambayashi Y, Hara A, Miyagi S, Yamada Y, Nguyen TTT, Shimizu Y, Hori D, Nakamura H. Relationship between saturated fatty acid intake and hypertension and oxidative stress. Nutrition 2019; 61:8-15. [DOI: 10.1016/j.nut.2018.10.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 09/14/2018] [Accepted: 10/14/2018] [Indexed: 01/11/2023]
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Zhao J, Xu SZ, Liu J. Fibrinopeptide A induces C-reactive protein expression through the ROS-ERK1/2/p38-NF-κB signal pathway in the human umbilical vascular endothelial cells. J Cell Physiol 2019; 234:13481-13492. [PMID: 30633345 DOI: 10.1002/jcp.28027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 11/30/2018] [Indexed: 12/25/2022]
Abstract
Atherosclerosis is a chronic inflammatory disease of the arterial wall. Inflammation causes endothelial injury and dysfunction, which is an initial step of atherosclerosis. Fibrinopeptide A (FPA) is a biomarker of the activation of the coagulation system, and a high concentration of FPA in the blood occurs in patients with ischemic cardiocerebrovascular diseases. The present research observed that FPA stimulated the generation of C-reactive protein (CRP), IL-1β, and IL-6 in human umbilical vascular endothelial cells (HUVECs); and anti-IL-1 β and anti-IL-6 neutralizing antibodies did not alter FPA-induced CRP expression in HUVECs. The subchronic administration of FPA into rats increased the plasma FPA and CRP levels. Further studies showed that FPA stimulated superoxide anion generation, activated ERK1/2 and p38, promoted nuclear factor κB (NF-κB) nuclear translocation, and raised the NF-κB level in the nuclei of HUVECs. Antioxidant N-acetylcysteine (NAC), complex II inhibitor thenoyltrifluoroacetone (TTFA), and NADPH oxidase inhibitor diphenyleneiodonium (DPI) inhibited FPA-stimulated generation of superoxide anion, and NAC reduced FPA-induced expressions of the phosphorylated ERK1/2 and p38. NAC, TTFA, DPI, inhibitors of ERK1/2, p38, and NF-κB all downregulated FPA-induced CRP expression. These results indicate that FPA induces CRP expression in HUVECs via the ROS-ERK1/2/p38-NF-κB signal pathway. Moreover, this is the first report that FPA produces a proinflammatory effect on the vascular endothelial cells.
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Affiliation(s)
- Jing Zhao
- Department of Pharmacology, Xi'an Jiaotong University School of Medicine, Xi'an, China
| | - Shou-Zhu Xu
- Department of Pharmacology, Xi'an Jiaotong University School of Medicine, Xi'an, China.,Department of Public Health, Shaanxi University of Chinese Medicine, Xianyang City, China
| | - Juntian Liu
- Department of Pharmacology, Xi'an Jiaotong University School of Medicine, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education Xi'an Jiaotong University, Xi'an, China
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Jun JE, Lee SE, Lee YB, Jee JH, Bae JC, Jin SM, Hur KY, Lee MK, Kim JH. Increase in serum albumin concentration is associated with prediabetes development and progression to overt diabetes independently of metabolic syndrome. PLoS One 2017; 12:e0176209. [PMID: 28430803 PMCID: PMC5400249 DOI: 10.1371/journal.pone.0176209] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 04/06/2017] [Indexed: 12/16/2022] Open
Abstract
Aim Serum albumin concentration is associated with both type 2 diabetes and metabolic syndrome (MetS). We sought to investigate whether baseline serum albumin and change in serum albumin could be independent risk factors for prediabetes in subjects without MetS. We further examined the effect of serum albumin on progression to overt diabetes in subjects who developed prediabetes. Methods Among 10,792 participants without diabetes and MetS who consecutively underwent yearly health check-ups over six years, 9,807 subjects without incident MetS were enrolled in this longitudinal retrospective study. The risk of developing prediabetes (impared fasting glucose or hemoglobin A1c) was analyzed according to baseline and percent change in serum albumin concentration using Cox regression analysis. Serial changes in serum albumin concentration were measured from baseline to one year before prediabetes diagnosis, and then from the time of prediabetes diagnosis to progression to overt diabetes or final follow-up. Results A total of 4,398 incident cases of prediabetes developed during 35,807 person-years (median 3.8 years). The hazard ratio for incident prediabetes decreased as percent change in serum albumin concentration (quartiles and per 1%) increased in a crude and fully adjusted model. However, baseline serum albumin concentration itself was not associated with prediabetic risk. Serum albumin levels kept increasing until the end of follow-up in prediabetic subjects who returned to normal glycemic status, whereas these measures did not change in prediabetic subjects who developed type 2 diabetes. Serum albumin concentration measured at the end of follow-up was the highest in the regression group, compared to the stationary (p = 0.014) or progression groups (p = 0.009). Conclusions Increase in serum albumin concentration might protect against early glycemic deterioration and progression to type 2 diabetes even in subjects without MetS.
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Affiliation(s)
- Ji Eun Jun
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, Republic of Korea
| | - Seung-Eun Lee
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, Republic of Korea
| | - You-Bin Lee
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, Republic of Korea
| | - Jae Hwan Jee
- Department of Health Promotion Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Ji Cheol Bae
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Republic of Korea
| | - Sang-Man Jin
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, Republic of Korea
| | - Kyu Yeon Hur
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, Republic of Korea
| | - Moon-Kyu Lee
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, Republic of Korea
| | - Jae Hyeon Kim
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-gu, Seoul, Republic of Korea
- Department of Clinical Research Design & Evaluation, SAIHST, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- * E-mail:
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Sugiura T, Dohi Y, Takase H, Yamashita S, Murai S, Tsuzuki Y, Ogawa S, Tanaka Y, Ohte N. Serum levels of Mac-2 binding protein increase with cardiovascular risk and reflect silent atherosclerosis. Atherosclerosis 2016; 251:192-196. [PMID: 27344370 DOI: 10.1016/j.atherosclerosis.2016.06.027] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 06/14/2016] [Accepted: 06/15/2016] [Indexed: 01/08/2023]
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Wu SH, Shu XO, Milne G, Xiang YB, Zhang X, Cai Q, Fazio S, Linton MF, Chen H, Purdue M, Rothman N, Gao YT, Zheng W, Yang G. Uric acid correlates to oxidation and inflammation in opposite directions in women. Biomarkers 2016; 20:225-31. [PMID: 26301880 PMCID: PMC4989504 DOI: 10.3109/1354750x.2015.1068852] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To evaluate the association of uric acid (UA) levels with a panel of markers of oxidative stress and inflammation. METHODS Plasma UA levels, along with a panel of oxidative stress and inflammatory markers, were measured in 755 Chinese women. RESULTS Plasma UA levels were inversely associated with urinary levels of the oxidative stress marker F2-isoprostanes and positively correlated to levels of inflammatory markers, such as C-reactive protein and some proinflammatory cytokines (tumor necrosis factor-α and interleukin-6) in blood as well as prostaglandin E2 metabolites in urine. CONCLUSIONS Plasma UA levels correlate to oxidation and inflammation biomarkers in opposite directions in women.
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Affiliation(s)
- Sheng Hui Wu
- a Department of Medicine, Division of Epidemiology , Vanderbilt University Medical Center , Nashville , TN , USA
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Bitencourt S, Lunardelli A, Amaral RH, Dias HB, Boschi ES, de Oliveira JR. Safety and patient subjective efficacy of using galvanopuncture for the treatment of striae distensae. J Cosmet Dermatol 2016; 15:393-398. [PMID: 27090205 DOI: 10.1111/jocd.12222] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/28/2016] [Indexed: 12/19/2022]
Abstract
BACKGROUND Striae distensae are linear atrophic dermal scars with associated epidermal atrophy. This recurrent skin disorder causes a significant cosmetic and psychologic concern and remains a therapeutic challenge, especially when they are mature and hypopigmented (striae alba). AIMS In this prospective single-center study, we evaluated the efficacy, safety, and patient's satisfaction of galvanopuncture for the treatment of striae alba. PATIENTS/METHODS Thirty-two female subjects with striae alba present on the buttocks were treated with galvanopuncture once a week over a period of 10 weeks. Photographs and a percentage category scale were used to assess striae improvement and patient's satisfaction. Biochemical analyses were performed to assess possible systemic inflammatory effects or oxidative stress induction by the treatment. RESULTS All patients achieved a substantial increase in clinical improvement in their striae within 10 treatment sessions. Galvanopuncture did not induce any inflammatory effect; however, it reduced oxidative injury. CONCLUSION The use of galvanopuncture for the treatment of striae alba demonstrated a significant improvement in the lesions with visible results. This study supports the high degree of patient's satisfaction and demonstrate the safe and effective use of galvanopuncture in the treatment of striae alba on several skin types.
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Affiliation(s)
- Shanna Bitencourt
- Laboratório de Cultura de Células, Centro de Ciências Biológicas e da Saúde, Centro Universitário UNIVATES, Lajeado, Brazil
| | | | - Robson Henrich Amaral
- Laboratório de Análises Clínicas, Instituto de Cardiologia do Rio Grande do Sul, Porto Alegre, Brazil
| | - Henrique Bregolin Dias
- Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Emerson Soldateli Boschi
- Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Jarbas Rodrigues de Oliveira
- Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
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Sugiura T, Dohi Y, Yamashita S, Hirowatari Y, Fujii S, Ohte N. Serotonin in peripheral blood reflects oxidative stress and plays a crucial role in atherosclerosis: Novel insights toward holistic anti-atherothrombotic strategy. Atherosclerosis 2016; 246:157-60. [DOI: 10.1016/j.atherosclerosis.2016.01.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 12/30/2015] [Accepted: 01/09/2016] [Indexed: 11/26/2022]
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14
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Singer RE, Moss K, Kim SJ, Beck JD, Offenbacher S. Oxidative Stress and IgG Antibody Modify Periodontitis-CRP Association. J Dent Res 2015; 94:1698-705. [PMID: 26318589 DOI: 10.1177/0022034515602693] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In a previous report, we demonstrated the inverse association of high serum 8-isoprostane levels, a marker for oxidative stress, with decreased serum IgG antibodies to oral bacteria. The association between increased serum IgG with increased plaque and periodontitis (increased probing depths) was attenuated by high systemic oxidative stress. Other investigations have reported a role for systemic oxidative stress as a stimulus of hepatic C-reactive protein (CRP) response. These observations led us to hypothesize that the reported relationship of periodontitis to elevated serum CRP, a systemic inflammatory marker, may be modified by oxidative stress and that the levels of serum antibodies to oral bacteria might be an intermediary explanatory variable linking the association of systemic oxidative stress, periodontal disease, and levels of CRP. This hypothesis was explored as a secondary analysis of the Dental ARIC (Atherosclerosis Risk in Communities) study using serum levels of CRP, serum IgG levels to 16 oral organisms, serum levels of 8-isoprostane, and periodontal status. The findings indicate periodontitis is associated with high CRP in the presence of elevated oxidative stress that serves to suppress the IgG response. Only within the highest 8-isoprostane quartile was periodontitis (pocket depth) associated with increased serum CRP levels (P = 0.0003). Increased serum IgG antibody levels to oral bacteria were associated with lowered serum CRP levels. Thus, systemic oxidative stress, which has been demonstrated to be associated with increased levels of CRP in other studies, appears to be associated with the suppression of bacterial-specific IgG levels, which in the presence of periodontal disease can result in an enhanced systemic CRP response. Conversely, individuals with increased serum IgG antibodies to plaque bacteria exhibit lowered serum CRP levels. These 2 factors, oxidative stress and the serum IgG response, appear to function in opposing directions to modify serum levels of CRP and the association with periodontitis.
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Affiliation(s)
- R E Singer
- Center for Oral and Systemic Diseases and Department of Periodontology, University of North Carolina at Chapel Hill, School of Dentistry, Chapel Hill, NC, USA
| | - K Moss
- Center for Oral and Systemic Diseases and Department of Dental Ecology, University of North Carolina at Chapel Hill, School of Dentistry, Chapel Hill, NC, USA
| | - S J Kim
- Center for Oral and Systemic Diseases and Department of Periodontology, University of North Carolina at Chapel Hill, School of Dentistry, Chapel Hill, NC, USA
| | - J D Beck
- Center for Oral and Systemic Diseases and Department of Dental Ecology, University of North Carolina at Chapel Hill, School of Dentistry, Chapel Hill, NC, USA
| | - S Offenbacher
- Center for Oral and Systemic Diseases and Department of Periodontology, University of North Carolina at Chapel Hill, School of Dentistry, Chapel Hill, NC, USA
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15
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Hawkins M, Braun B, Marcus BH, Stanek E, Markenson G, Chasan-Taber L. The impact of an exercise intervention on C - reactive protein during pregnancy: a randomized controlled trial. BMC Pregnancy Childbirth 2015; 15:139. [PMID: 26104503 PMCID: PMC4479080 DOI: 10.1186/s12884-015-0576-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 05/28/2015] [Indexed: 01/05/2023] Open
Abstract
Background C-reactive protein (CRP) during pregnancy has been associated with adverse maternal outcomes such as preeclampsia and gestational diabetes mellitus. Randomized trials suggest that exercise programs may be associated with reductions in CRP in non-pregnant populations; however, such studies have not been conducted among pregnant women. The purpose of this study was to evaluate the impact of an individually-tailored motivationally-matched exercise intervention on CRP in pregnant women. Methods The Behaviors Affecting Baby and You study was a randomized controlled trial of prenatal physical activity to prevent the development of gestational diabetes mellitus in women at increased risk. Women were randomized to either a 12-week exercise intervention (n = 84) or a comparison health and wellness intervention (n = 87). High sensitivity CRP (mg/dL) was measured using a commercial immunoassay kit. Physical activity was measured using the Pregnancy Physical Activity Questionnaire. Mixed model analyses were used to evaluate the impact of the intervention on change in CRP using an intent-to-treat approach. Results CRP decreased (−0.09 mg/dL, 95 % CI: −0.25, 0.07) from pre- to post-intervention in the exercise arm (p = 0.14) and increased (0.08 mg/dL, 95 % CI: −0.07, 0.24) (p = 0.64) in the health and wellness arm; however the between group difference was not statistically significant (p = 0.14). Findings did not differ according to ethnic group or pre-pregnancy body mass index. In a secondary analysis based on self-reported physical activity, women who decreased their time spent in sports/exercise experienced a mean increase in CRP (0.09 mg/dL, 95 % CI: −0.14, 0.33), whereas women who maintained or increased their sports/ exercise experienced a mean decrease in CRP (−0.08 mg/dL, 95 % CI: −0.23, 0.08) (p = 0.046). Conclusions Findings from this randomized trial in an ethnically and socio-economically diverse population of pregnant women were consistent with a positive impact of the exercise intervention on CRP levels, but not of statistical significance. Clinical trial registration ClinicalTrials.gov: NCT00728377. Registered 2 August 2008.
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Affiliation(s)
- Marquis Hawkins
- Department of Biostatistics & Epidemiology, School of Public Health & Health Sciences, University of Massachusetts, Amherst, MA, USA.
| | - Barry Braun
- Department of Kinesiology, School of Public Health & Health Sciences, University of Massachusetts, Amherst, MA, USA.
| | - Bess H Marcus
- Department Family and Public Health, University of California San Diego School of Medicine, San Diego, CA, USA.
| | - Edward Stanek
- Department of Biostatistics & Epidemiology, School of Public Health & Health Sciences, University of Massachusetts, Amherst, MA, USA.
| | | | - Lisa Chasan-Taber
- Department of Biostatistics & Epidemiology, School of Public Health & Health Sciences, University of Massachusetts, Amherst, MA, USA.
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16
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Devadasu VR, Wadsworth RM, Kumar MNVR. Protective effects of nanoparticulate coenzyme Q10 and curcumin on inflammatory markers and lipid metabolism in streptozotocin-induced diabetic rats: a possible remedy to diabetic complications. Drug Deliv Transl Res 2015; 1:448-55. [PMID: 25786365 DOI: 10.1007/s13346-011-0041-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Diabetes and its complications have been linked to increased levels of free radicals and systemic pro-inflammatory cytokines and to an altered lipid profile. Coenzyme Q10 and curcumin are potent antioxidants and anti-inflammatory agents but are underutilized clinically because of their poor bioavailability when administered orally. We have recently developed poly(D,L-lactic-co-glycolic acid)-based nanoparticles in which we have encapsulated coenzyme Q10 and curcumin to increase the oral bioavailability and therapeutic efficacy of the antioxidant molecules. These formulations when tested in streptozotocin-induced diabetic rats demonstrated protective effects on inflammatory markers as well as lipid metabolism. Coenzyme Q10 nanoparticulates reduced only C-reactive protein levels, whereas curcumin nanoparticles reduced levels of C-reactive protein, interleukin-6 and tumor necrosis factor-α. Administration of both nanoparticulates resulted in significant reductions of plasma triglycerides and total cholesterol and an increase in high-density lipoprotein cholesterol. Together, these data indicate the promise of coenzyme Q10 and curcumin in diabetes when delivered through nanoparticulate formulations.
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Affiliation(s)
- Venkat Ratnam Devadasu
- Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), University of Strathclyde, Glasgow, UK, G4 0RE
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17
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Okayasu I, Ohnishi H, Sarandi I, Shojima J, Komatsu J, Oritsu M, Sasabe M, Nanami KO, Matsuura M, Azumi JI, Ito S, Fujiwara M. Significant increase of prostaglandin E-major urinary metabolite in male smokers: a screening study of age and gender differences using a simple radioimmunoassay. J Clin Lab Anal 2013; 28:32-41. [PMID: 24375858 DOI: 10.1002/jcla.21640] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Accepted: 05/31/2013] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND For the assessment of inflammatory status, we have developed a simple, reliable radioimmunoassay (RIA) of prostaglandin E-major urinary metabolite (PGE-MUM), which remains stable in urine after it is metabolized. Using this method, we conducted a screening study to compare standard values of PGE-MUM to serum C-reactive protein (CRP) levels in health check volunteers. METHODS PGE-MUM (micrograms per gram creatinine) was measured in normal urine samples obtained from 797 samples in volunteers for health check, using a newly developed RIA, and analyzed in relation to age, gender, smoking, and drinking habits. Results were compared to serum CRP. RESULTS PGE-MUM was significantly higher in males than in females. It was significantly higher in smoking males, compared to males who had never smoked (nonsmokers), particularly in those above 40 years of age. In nonsmokers, PGE-MUM declined in males with advancing age, while it rose in females. Although PGE-MUM reflected current smoking status, independent of smoking index (SI), serum CRP indicated both current and former smoking condition, rather dependent upon SI. CONCLUSIONS PGE-MUM increases in smokers, as suggested by possible inflammatory injury of pulmonary tissue. This RIA method for PGE-MUM may be thus a sensitive and reliable biomarker for current inflammation, different from serum CRP.
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Affiliation(s)
- Isao Okayasu
- Department of Pathology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
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18
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Chung SW, Kang SG, Rho JS, Kim HN, Song IS, Lee YA, Heo SJ, Song SW. The Association between Oxidative Stress and Metabolic Syndrome in Adults. Korean J Fam Med 2013; 34:420-8. [PMID: 24340164 PMCID: PMC3856284 DOI: 10.4082/kjfm.2013.34.6.420] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Accepted: 10/25/2013] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND In this Study, we investigated the effects of lifestyle and metabolic syndrome on free oxygen radical levels in men and women in Korea. METHODS A total of 254 adults were included in this study from February 2011 to June 2012 at a health promotion center. Information of the lifestyles and presence of metabolic syndrome factors was obtained. Biochemical markers were measured and free oxygen radicals test (FORT) was performed on the blood. RESULTS Of the 254 subjects, 86 (33.9%) had metabolic syndrome, and 187 (73.6%) were men. Between the subjects with and without metabolic syndrome, there was a significant increase in alanine aminotransferase and serum FORT values in the subjects with metabolic syndrome. Multiple linear regression analysis showed that high-sensitivity C-reactive protein (hs-CRP) (P = 0.004), metabolic syndrome (P = 0.037), and female gender (P = 0.030) were independent predictors of serum FORT values. The subjects with high fasting blood sugar level or low high density lipoprotein cholesterol levels showed high serum FORT values. CONCLUSION High hs-CRP, the presence of metabolic syndrome, and female gender were associated with the high oxidative stress. High oxidative stress was associated with the presence of metabolic syndrome.
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Affiliation(s)
- So-Won Chung
- Department of Family Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
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19
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Razavi A, Baghshani MR, Rahsepar AA, Mohaddes Ardabili H, Sheikh Andalibi MS, Reza Parizadeh SM, Tavallaie S, Mousavi S, Ghayour-Mobarhan M, Ferns G. Association between C-reactive protein, pro-oxidant-antioxidant balance and traditional cardiovascular risk factors in an Iranian population. Ann Clin Biochem 2013; 50:115-21. [PMID: 23440541 DOI: 10.1258/acb.2012.012104] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Inflammatory states are known to cause an imbalance in the redox status. We aimed to study the possible associations between pro-oxidant-antioxidant balance (PAB) and serum high-sensitive C-reactive protein (hs-CRP) concentrations and traditional cardiovascular disease (CVD) risk factors in an unselected Iranian population and in groups of individuals with specific disease. METHODS The study was conducted among an unselected population of 758 male subjects. Biochemical markers, including hs-CRP and PAB values, were measured. RESULTS Serum hs-CRP concentrations were positively associated with serum PAB values (r = 0.260, P ≤ 0.001). Univariate analysis showed that PAB values were statistically higher in individuals who were obese or smokers compared with non-obese and non-smokers individuals (P < 0.01). While serum hs-CRP concentrations were significantly higher in older subjects, subjects with obesity, diabetes mellitus, metabolic syndrome, central obesity, hypertriglyceridaemia, higher low-density lipoprotein cholesterol concentrations, positive history of CVD and lower physical activity than subjects without these risk factors (P < 0.05). Comparing hs-CRP and PAB values in different CVD risk score subgroups showed a significant incremental rise in both parameters as CVD risk score increased (P < 0.05). Using multiple linear regression analysis we found a strong association between PAB values and hs-CRP concentrations. CONCLUSIONS This study showed that among Iranian subjects, the inflammatory marker, hs-CRP, was strongly and positively associated with a marker of oxidative stress and also with several traditional risk factors of CVD. Moreover, the impact of traditional cardiovascular risk factors on hs-CRP concentrations and PAB values differed.
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Affiliation(s)
- Akramosadat Razavi
- Biochemistry of Nutrition Research Center, Faculty of Medicine, Mashhad University of Medical Science, 9196773117, Mashhad, Iran
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20
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Neyestani TR, Ghandchi Z, Eshraghian MR, Kalayi A, Shariatzadeh N, Houshiarrad A. Evidence for augmented oxidative stress in the subjects with type 1 diabetes and their siblings: a possible preventive role for antioxidants. Eur J Clin Nutr 2012; 66:1054-8. [PMID: 22781023 DOI: 10.1038/ejcn.2012.81] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND/OBJECTIVES Oxidative stress (OS) is thought to be involved in both development of type 1 diabetes (T1D) and its further complications. In this study, certain biomarkers of OS were compared among the subjects with T1D, their non-diabetic siblings and unrelated healthy controls. SUBJECTS/METHODS Known cases of T1D from both sexes aged 5-25 years were enrolled in a case-control study (n(1)=60). There were two control groups; non-diabetic siblings (n(2)=60) and unrelated apparently healthy subjects (n(3)=60). Anthropometric, dietary and laboratory assessments were done. RESULTS There was no significant difference in dietary data among the groups. Total antioxidant capacity was significantly lower in T1D than both related and unrelated controls (1.6 ± 0.05, 1.7 ± 0.05 and 1.8 ± 0.06 mmol BSA equivalent/l, respectively, P=0.044). Both T1D subjects and their siblings showed lower glutathione peroxidase (GSH-px) levels (median (interquartile range): 22.2 (28.6), 29.9 (23) and 41.8 (73.6) U/ml, respectively, P=0.006). On the contrary, superoxide dismutase concentrations were significantly higher in T1D group and the siblings than unrelated healthy controls (243 (45.3), 157.8 (176.9) and 27.9 (8.7) U/l, respectively, P<0.001). Serum concentrations of GSH correlated with energy intake in the siblings (r=0.521, P<0.001) and unrelated controls (r=0.268, P=0.042) but not in T1D group. The associations remained significant after controlling for blood glucose (r=0.437, P=0.001 and r=0.420, P=0.011, respectively) in both the groups. CONCLUSION Augmented OS in the siblings may indicate an increased requirement for antioxidants in genetically diabetes-prone subjects.
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Affiliation(s)
- T R Neyestani
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute (NNFTRI), Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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21
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Liu H, Yang Y, Huang G, Tan S, Liu Y. Positive association of pro-inflammatory biomarkers and increased oxidative stress in the healthy elderly. Arch Gerontol Geriatr 2012; 54:e8-e12. [DOI: 10.1016/j.archger.2011.05.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Revised: 05/11/2011] [Accepted: 05/12/2011] [Indexed: 10/18/2022]
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22
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Xu F, Lv S, Chen Y, Song X, Jin Z, Yuan F, Zhou Y, Li H. Macrophage inflammatory protein-1β and fibrinogen are synergistic predictive markers of prognosis of intermediate coronary artery lesions. Cardiology 2012; 121:12-9. [PMID: 22378071 DOI: 10.1159/000335886] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Accepted: 12/05/2011] [Indexed: 11/19/2022]
Abstract
OBJECTIVE We tested the hypothesis that the plasma levels of fibrinogen and macrophage inflammatory protein (MIP)-1β are synergistic predictive markers of the prognosis of intermediate coronary artery lesions. METHODS A prospective study was performed on 670 patients with intermediate coronary artery lesions. Fibrinogen and MIP-1β were measured. Major adverse cardiac event (MACE) was defined as a composite of cardiovascular death, nonfatal myocardial infarction, revascularization and readmission due to angina pectoris. RESULTS During follow-up, 72 events occurred; 5 patients died, 7 patients suffered a nonfatal myocardial infarction, 11 patients underwent revascularization and 49 patients were readmitted for angina pectoris. In patients with above-median levels of MIP-1β, a 2.62-fold risk of a MACE [95% confidence interval (CI) 1.53-4.48] was predicted compared with patients with below-median levels of MIP-1β. However, the strongest risk prediction was achieved by assessing MIP-1β and fibrinogen together. After adjusting for traditional risk factors, a multivariate Cox proportional hazards analysis showed that patients with both MIP-1β and fibrinogen above the median had a 4.37-fold risk of a MACE (95% CI 1.89-10.11). CONCLUSION MIP-1β accurately predicted MACEs. Considering MIP-1β and fibrinogen together may improve long-term risk assessment. These two biomarkers have a synergistic effect for assessing long-term risk in patients with intermediate coronary artery lesions.
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Affiliation(s)
- Feng Xu
- Beijing Anzhen Hospital, Capital Medical University, 2 Anzhen Road, Beijing, China
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23
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Lv YY, Jin Y, Han GZ, Liu YX, Wu T, Liu P, Zhou Q, Liu KX, Sun HJ. Ursolic acid suppresses IL-6 induced C-reactive protein expression in HepG2 and protects HUVECs from injury induced by CRP. Eur J Pharm Sci 2012; 45:190-4. [PMID: 22108347 DOI: 10.1016/j.ejps.2011.11.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Revised: 11/02/2011] [Accepted: 11/08/2011] [Indexed: 10/15/2022]
Abstract
OBJECTIVE To investigate the inhibitory effects of ursolic acid (UA) on the expression of C-reactive protein (CRP) induced by IL-6 in HepG2 cells and the protective effects on the CRP-induced injury to human umbilical vein endothelial cells (HUVECs). METHODS HepG2 cells were treated with IL-6 or IL-6 and different concentrations of UA for 48 h, then the cells were collected. The total protein and RNA of the cells were extracted for western blotting and RT-PCR methods to detect CRP protein and mRNA expression. HUVECs were treated with CRP or CRP and different concentrations of UA for 24h. Cell proliferation in each group was assayed by MTT. Cells were collected for western blotting and RT-PCR methods to detect VCAM-1, LOX-1 protein or mRNA expression. RESULT IL-6 can significantly increase CRP protein and mRNA expression in HepG2 cells, and this effect of IL-6 can be decreased by UA (6.25, 12.5, 25 μmol/L) markedly in a dose-dependent manner. UA can inhibit CRP-induced proliferation of HUVECs. CRP can obviously increase LOX-1/VCAM-1 expression in HUVECs, both on mRNA and protein levels and the effect of CRP can be inhibited by UA (5, 10, 20 μmol/L) in a dose-dependent manner. CONCLUSION UA can reduce the over expression of CRP in HepG2 cells induced by IL-6 and inhibit the increased expression of VCAM-1 and LOX-1 in HUVECs caused by CRP. Our research suggests that UA can reduce CRP levels in plasma and prevent inflammatory cytokines from injuring endothelial cells by inhibiting the hepatic synthesis of CRP. So UA may have positive significance for prevention and treatment of atherosclerosis and other cardiovascular diseases.
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Affiliation(s)
- Yuan-yuan Lv
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, 9 West Section, Lvshun South Road, Dalian 116044, Liaoning Province, China
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24
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Rowlands DS, Pearce E, Aboud A, Gillen JB, Gibala MJ, Donato S, Waddington JM, Green JG, Tarnopolsky MA. Oxidative stress, inflammation, and muscle soreness in an 894-km relay trail run. Eur J Appl Physiol 2011; 112:1839-48. [PMID: 21922261 DOI: 10.1007/s00421-011-2163-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Accepted: 09/02/2011] [Indexed: 11/27/2022]
Abstract
We describe the effects of multi-day relay trail running on muscle soreness and damage, and systemic immune, inflammatory, and oxidative responses. 16 male and 4 female athletes ran 894 km in 47 stages over 95 h, with mean (SD) 6.4 (1.0) stages per athlete and 19.0 (1.7) km per stage. We observed post-pre run increases in serum creatine kinase (qualified effect size extremely large, p = 0.002), IL-6 (extremely large, p < 0.001), urinary 8-isoprostane/creatinine (extremely large, p = 0.04), TNF-α (large, p = 0.002), leukocyte count (very large, p < 0.0001) and neutrophil fraction (very large, p < 0.001); and reductions in hemoglobin (moderate, p < 0.001), hematocrit (moderate, p < 0.001), and lymphocyte fraction (trivial, p < 0.001). An increase in ORAC total antioxidant capacity (TAC, small, p = 0.3) and decrease in urinary 8-OHdG/creatinine (small, p = 0.1) were not statistically significant. During the run, muscle soreness was most frequent in the quadriceps. The threshold for muscle pain (pain-pressure algometry) in the vastus lateralis and gastrocnemius was lower post-run (small, p = 0.04 and 0.03). Average running speed was correlated with algometer pain and leukocyte count (large, r = 0.52), and TAC was correlated with IL-6 (very large, r = 0.76) and 8-isoprostane/creatinine (very large, r = -0.72). Multi-day stage-racing increases inflammation, lipid peroxidation, muscle damage and soreness without oxidative DNA damage. High TAC is associated with reduced exercise-induced lipid peroxidation, but is not related to immune response or muscle damage.
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Affiliation(s)
- David S Rowlands
- School of Sport and Exercise, Massey University, Pvt Box 756, Wellington 6021, New Zealand.
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25
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Sugiura T, Dohi Y, Takase H, Yamashita S, Tanaka S, Kimura G. Increased reactive oxygen metabolites is associated with cardiovascular risk factors and vascular endothelial damage in middle-aged Japanese subjects. Vasc Health Risk Manag 2011; 7:475-82. [PMID: 21822395 PMCID: PMC3148421 DOI: 10.2147/vhrm.s23097] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Vascular endothelium, a provider of nitric oxide, is essential for the maintenance of homeostasis in healthy vascular systems. Increased oxidative stress promotes vascular inflammation and is a common pathway involved in endothelial damage. The present study sought to investigate the usefulness of derivative reactive oxygen metabolites (d-ROM) as an oxidative stress marker for detecting endothelial damage in the clinical setting in subjects with early-stage atherosclerosis. METHODS Study 1 investigated the relationship between serum d-ROM levels and cardiovascular risk factors in apparently healthy middle-aged subjects (n = 1992, 49 ± 8 years) who participated in our health checkup program. Study 2 analyzed the association between d-ROM levels and endothelial function assessed by flow-mediated dilation and that between d-ROM levels and high-sensitivity C reactive protein (hs-CRP) levels in middle-aged outpatients with mild-to-moderate cardiovascular risk (n = 43, 40 ± 5 years). RESULTS In study 1, the d-ROM level was independently correlated with age, systolic blood pressure, fasting plasma glucose, low-density lipoprotein cholesterol, and brain natriuretic peptide in univariate and multivariate regression analysis. In study 2, the d-ROM level was correlated positively with the hs-CRP level and inversely with the flow-mediated dilation value. Patients in the highest tertile of d-ROM had significantly lower flow-mediated dilation values compared with patients in the other tertiles. Moreover, after subdivision of patients into four groups according to d-ROM and hs-CRP levels, patients with high levels of both d-ROM and hs-CRP showed significantly reduced flow-mediated dilation as compared with those with low levels of both indices. CONCLUSION The close relationship of d-ROM with cardiovascular risk factors, brain natriuretic peptide, inflammatory markers (hs-CRP), and endothelial function (flow-mediated dilation) suggest that d-ROM is a useful oxidative stress marker for detection of endothelial damage in the clinical setting. Assessment of d-ROM, especially combined with hs-CRP, may be a possible predictor of cardiovascular disease.
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Affiliation(s)
- Tomonori Sugiura
- Department of Cardio-Renal Medicine and Hypertension, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
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Sugiura T, Dohi Y, Yamashita S, Yamamoto K, Wakamatsu Y, Tanaka S, Kimura G. Impact of lipid profile and high blood pressure on endothelial damage. J Clin Lipidol 2011; 5:460-6. [PMID: 22108149 DOI: 10.1016/j.jacl.2011.06.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2010] [Revised: 05/03/2011] [Accepted: 06/03/2011] [Indexed: 11/24/2022]
Abstract
BACKGROUND Endothelial damage is an early component of atherosclerosis; however, the impact of cardiovascular risk factors on endothelial function is not clearly understood. We investigated the impact of lipid profiles and high blood pressure on damage. OBJECTIVE Japanese male outpatients with grade I or II hypertension, along with gender and age-matched normotensive subjects (both n = 25), were enrolled. Subjects with severe cardiovascular risk factors or illness or those taking medications were excluded. Blood was sampled for laboratory analysis and endothelial function was assessed by flow-mediated dilation (FMD). RESULTS Total cholesterol to high-density lipoprotein cholesterol ratio (total-C/HDL-C) was inversely correlated with the FMD value and positively correlated with both malondialdehyde-modified low-density lipoprotein and high-sensitivity C-reactive protein values. Stepwise regression analysis revealed total-C/HDL-C and systolic blood pressure were significant determinants of FMD. Hypertensive subjects had lower FMD values and similar lipid profiles to normotensive subjects. Grouping subjects according to total-C/HDL-C levels showed that those with high values had lower FMD values. Hypertensive subjects with low total-C/HDL-C had similar endothelial index values to those in normotensive subjects with high total-C/HDL-C. Logistic regression indicated hypertension and high total-C/HDL-C were significantly associated with low FMD values. CONCLUSION Impaired endothelial function was associated with increased total-C/HDL-C values, possibly as the result of increased vascular oxidative stress and inflammation. In the early stages of atherosclerosis, the impact of both total-C/HDL-C and BP may be similar in terms of endothelial damage.
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Affiliation(s)
- Tomonori Sugiura
- Department of Cardio-Renal Medicine and Hypertension, Nagoya City University Graduate School of Medical Sciences, Kawasumi 1, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan.
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27
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Sugiura T, Dohi Y, Yamashita S, Yamamoto K, Tanaka S, Wakamatsu Y, Kimura G. Malondialdehyde-modified LDL to HDL-cholesterol ratio reflects endothelial damage. Int J Cardiol 2011; 147:461-3. [DOI: 10.1016/j.ijcard.2010.12.112] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Accepted: 12/31/2010] [Indexed: 11/24/2022]
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Davies SS, Roberts LJ. F2-isoprostanes as an indicator and risk factor for coronary heart disease. Free Radic Biol Med 2011; 50:559-66. [PMID: 21126576 PMCID: PMC3058898 DOI: 10.1016/j.freeradbiomed.2010.11.023] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2010] [Revised: 11/16/2010] [Accepted: 11/16/2010] [Indexed: 12/17/2022]
Abstract
Coronary heart disease (CHD) is the leading single cause of death in the United States and most Western countries, killing more than 400,000 Americans per year. Although CHD often manifests suddenly as a fatal myocardial infarction, the atherosclerosis that gives rise to the infarction develops gradually and can be markedly slowed or even reversed through pharmacological and lifestyle interventions. These same atherosclerotic processes also drive related vascular diseases such as stroke and peripheral artery disease, and individuals surviving occlusive events often develop additional complications including ischemic cardiomyopathy and heart failure. Therefore, better detection of subclinical atherosclerosis, along with more effective treatments, could significantly reduce the rate of death from CHD and related vascular diseases in the United States. In recent years, oxidation of polyunsaturated fatty acids (PUFAs) in plasma lipoproteins has been postulated to be a critical step in the development of atherosclerosis. If so, then monitoring lipid peroxidation should be a useful indicator of disease risk and progression. This review focuses on the evidence that specific PUFA peroxidation products, the F(2)-isoprostanes, are useful biomarkers that could potentially be utilized as indicators of CHD.
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Affiliation(s)
- Sean S Davies
- Division of Clinical Pharmacology and Department of Pharmacology, Vanderbilt University, Nashville, TN 37221, USA.
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Effects of Body Mass Index (BMI), Dietary Intake and Serum Antioxidant Vitamin Concentration on Urinary 8-hydroxydeoxyguanosine and F 2-isoprostane Excretions. ACTA ACUST UNITED AC 2011. [DOI: 10.3793/jaam.8.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Oxidative stress in hypercholesterolemia and its association with Ala16Val superoxide dismutase gene polymorphism. Clin Biochem 2010; 43:1118-23. [DOI: 10.1016/j.clinbiochem.2010.07.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2009] [Revised: 06/30/2010] [Accepted: 07/02/2010] [Indexed: 01/19/2023]
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Kawamoto R, Tabara Y, Kohara K, Miki T, Abe M, Kusunoki T, Katoh T, Ohtsuka N. Serum high molecular weight adiponectin is associated with mild renal dysfunction in Japanese adults. J Atheroscler Thromb 2010; 17:1141-8. [PMID: 20724800 DOI: 10.5551/jat.5124] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
AIMS Renal dysfunction is a major public health problem, but there have been few investigations of the relationship between serum high molecular weight (HMW) adiponectin and renal function in Japanese community-dwelling adults. METHODS We randomly recruited a sample of 1,849 adult Japanese (793 men aged 60 ± 14 (mean ± standard deviation; range, 20-89) years and 1,056 women aged 62 ± 12 (range, 21-88) years) during their annual health examination in a single community. Participants with an eGFR of ≥ 60 mL/min/1.73 m² were divided into four groups based on quartiles of serum HMW adiponectin levels, and it was investigated whether serum HMW adiponectin is independently associated with eGFR. RESULTS Mean eGFR was significantly higher in the highest quartile than the lowest quartile of serum HMW adiponectin levels. Stepwise multiple linear regression analysis using eGFR as an objective variable, adjusted for confounding factors as explanatory variables, showed that serum HMW adiponectin (β=0.068) as well as age (β=-0.361), prevalence of antihypertensive medication (β=-0.115), triglycerides (β=-0.063), low-density lipoprotein cholesterol (β=-0.094), and fasting plasma glucose (β=0.148) were independently associated with eGFR. The multivariate-adjusted odds ratio for mild renal dysfunction of an eGFR < 70 mL/min/1.73 m² was 0.62 (95% CI, 0.42-0.91) for the highest quartile compared with participants with the lowest serum adiponectin quartile. CONCLUSIONS We conclude that a higher serum HMW adiponectin level is associated with a reduced odds ratio of mild renal dysfunction in Japanese adults.
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Affiliation(s)
- Ryuichi Kawamoto
- Department of Community Medicine, Ehime University Graduate School of Medicine, Ehime, Japan.
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Tsai AC, Tsai HJ. The association of age, gender, body fatness and lifestyle factors with plasma C-reactive protein concentrations in older Taiwanese. J Nutr Health Aging 2010; 14:412-6. [PMID: 20617281 DOI: 10.1007/s12603-010-0042-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE This study determined the population distribution of plasma C-reactive protein (CRP) and evaluated its association with age, body fatness status and lifestyle factors in elderly Taiwanese. DESIGN A crosssectional-study. SETTING A population-representative sample. The "1999-2000 Elderly Nutrition and Health Survey in Taiwan". PARTICIPANTS 2432 non-institutionalized population-representative Taiwanese, 65 y or older. MEASUREMENTS Plasma CRP-concentrations and factors that impact plasma CRP concentrations. RESULTS Results showed that weighting-adjusted plasma CRP concentration (mean +/- SE) was 2.50 +/- 0.10 mg/L for men and 2.70 +/- 0.10 mg/L for women. Cigarette smoking was positively associated with plasma CRP concentrations in both men and women. Age was positively (P < 0.05) but physical activity was negatively (P <0.05) associated with plasma CRP concentrations in men. These associations were not significant in women. Waist circumference but not BMI was significantly (P < 0.05) associated with plasma CRP in women. Both associations were not significant in men. Alcohol drinking and betel nut-chewing were not significantly associated with CRP concentrations. CONCLUSION Results suggest that there are gender-related differences in the degree of association of CRP concentrations with age, waist circumference, BMI and physical activity in older Taiwanese. Results also suggest population-related differences in the strength of many associations when compared to observations made in Western countries. These findings may help delineate the differences in cardiovascular risk among various populations.
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Affiliation(s)
- A C Tsai
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, Michigan 48109, USA.
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Seet RCS, Lee CYJ, Lim ECH, Quek AML, Huang SH, Khoo CM, Halliwell B. Markers of oxidative damage are not elevated in otherwise healthy individuals with the metabolic syndrome. Diabetes Care 2010; 33:1140-2. [PMID: 20185735 PMCID: PMC2858191 DOI: 10.2337/dc09-2124] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE The role of oxidative damage in the pathogenesis of metabolic syndrome is poorly understood. RESEARCH DESIGN AND METHODS A detailed cross-sectional study was performed to assess the relationship between lipid oxidation products, gamma-glutamyltransferase, high-sensitivity C-reactive protein (hs-CRP), and phospholipase activities with respect to the metabolic status in a cohort of otherwise healthy individuals. RESULTS A total of 179 individuals (87 men and 92 women) aged 43 +/- 14 years (mean +/- SD) participated in this study. There were no differences in the levels of plasma F(2)-isoprostanes, hydroxyeicosatetraenoic acids, cholesterol oxidation products, and phospholipase activities in individuals with features of metabolic syndrome. In multivariate analyses, serum hs-CRP was a consistent independent predictor of metabolic syndrome. CONCLUSIONS Minimal changes were observed in multiple markers of oxidative damage in a well-characterized cohort of individuals with features of metabolic syndrome.
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Affiliation(s)
- Raymond C-S Seet
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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Abstract
OBJECTIVE Although not all findings are consistent, growing evidence suggests that individuals high in dispositional hostility are at elevated risk for cardiovascular disease and all-cause mortality; however, the mechanisms of these associations remain unclear. One possibility is that hostility is associated with oxidative stress. Here, we explore relationships between hostility and a measure of systemic oxidative stress among a mid-life sample. METHODS In a community sample of 223 adults aged 30 to 54 years (86% white, 50% female), oxidative stress was measured as the 24-hour urinary excretion of 8-hydroxy-2'-deoxyguanosine (8-OHdG). An abbreviated Cook Medley Hostility Scale was used to measure dimensions of hostility. RESULTS Regression analyses controlling for demographic characteristics and cardiovascular risk factors showed a positive relationship of 8-OHdG with total hostility (beta = 0.003, p = .03) and hostile affect (beta = 0.018, p < .001). CONCLUSIONS These findings provide evidence that dispositional hostility, and in particular, hostile affect, covary positively with systemic oxidative stress, raising the possibility that oxidative stress contributes to the pathogenicity of hostile attributes.
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Nakajima T, Honda T, Domon H, Okui T, Kajita K, Ito H, Takahashi N, Maekawa T, Tabeta K, Yamazaki K. Periodontitis-associated up-regulation of systemic inflammatory mediator level may increase the risk of coronary heart disease. J Periodontal Res 2009; 45:116-22. [PMID: 19602107 DOI: 10.1111/j.1600-0765.2009.01209.x] [Citation(s) in RCA: 113] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE Although an elevation in the concentration of high-sensitivity C-reactive protein (hs-CRP) as a result of periodontal infection may account for an increased risk of developing coronary heart disease (CHD), the effect of periodontal infection on the level of hs-CRP in an otherwise healthy Japanese population has not yet been reported. The aim of the present study was to confirm, on a larger scale, our previous pilot study findings that both chronic periodontitis and subsequent periodontal treatment alter the serum levels of C-reactive protein (CRP), interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-alpha). MATERIAL AND METHODS The concentrations of serum hs-CRP, IL-6 and TNF-alpha were measured in 78 periodontitis patients at baseline and at re-assessment, and in 40 periodontally healthy subjects at the time of examination. RESULTS The concentrations of hs-CRP and IL-6 in the sera of periodontitis patients were significantly higher than those in control subjects. By contrast, the concentration of TNF-alpha was significantly lower in periodontitis patients than in control subjects. Whereas periodontal treatment decreased the levels of serum hs-CRP and IL-6, no such effect was observed for TNF-alpha. When the patients were subdivided into four groups according to their initial concentration of hs-CRP, only the CRP and IL-6 concentrations of the highest quartile group showed a significant reduction following periodontal treatment. No significant difference in the initial clinical parameters was observed in any quartile. CONCLUSION Although periodontal infection does affect the concentration of hs-CRP and IL-6 in serum, a subgroup of patients exist who are highly susceptible to an increased risk of CHD associated with periodontitis, suggesting that there may be subjects who have an elevated risk of CHD independent of susceptibility to periodontal tissue destruction per se.
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Affiliation(s)
- T Nakajima
- Laboratory of Periodontology and Immunology, Department of Oral Health and Welfare, Niigata University Faculty of Dentistry, Niigata, Japan
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Takase H, Dohi Y, Toriyama T, Okado T, Tanaka S, Sato K, Kimura G. Metabolic disorders predict development of hypertension in normotensive Japanese subjects. Hypertens Res 2008; 31:665-71. [PMID: 18633178 DOI: 10.1291/hypres.31.665] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Each component of the metabolic syndrome is not necessarily clustered coincidentally. Thus, subjects who have obesity, dyslipidemia or impaired glucose tolerance may be at high risk for the development of hypertension. We studied the predictive value of the following for the development of hypertension: obesity (body mass index > or =25.0 kg/m2), dyslipidemia (high-density lipoprotein-cholesterol <40 mg/dL, triglyceride > or =150 mg/dL, or use of anti-dyslipidemic drugs), high normal blood pressure (130 mmHg < or = systolic <140 mmHg, or 85 mmHg < or = diastolic <90 mmHg), and impaired glucose tolerance (fasting plasma glucose > or =110 mg/dL or use of anti-diabetic agents). This observational study included 5,785 subjects without hypertension recruited from participants in our health checkup program. They were followed up for 1,097+/-365 d, with the endpoint being the development of hypertension. During the follow-up, hypertension developed in 1,168 subjects (74.1 per 1,000 person-years). The incidence of hypertension was higher in subjects who had obesity (106.2 vs. 67.8), dyslipidemia (96.1 vs. 69.0), high normal blood pressure (166.0 vs. 40.1), or impaired glucose tolerance (130.5 vs. 65.3 per 1,000 person-years) than in those without these disorders at baseline. The risk of hypertension was increased as the number of metabolic disorders in an individual increased. Multiple regression analysis indicated that obesity, high normal blood pressure, and impaired glucose tolerance remained independent predictors of the onset of hypertension. Thus, the presence of individual components of the metabolic syndrome predicts the development of hypertension. Prediction of the development of hypertension may lead to effective prevention of both hypertension and resulting cardiovascular diseases.
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Affiliation(s)
- Hiroyuki Takase
- Department of Internal Medicine, Enshu Hospital, Hamamatsu, Japan
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Cunha AB, Andreazza AC, Gomes FA, Frey BN, da Silveira LE, Gonçalves CA, Kapczinski F. Investigation of serum high-sensitive C-reactive protein levels across all mood states in bipolar disorder. Eur Arch Psychiatry Clin Neurosci 2008; 258:300-4. [PMID: 18297417 DOI: 10.1007/s00406-007-0797-0] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2007] [Accepted: 11/06/2007] [Indexed: 12/23/2022]
Abstract
There has been an increasing interest in the role of the immune and inflammatory systems in mood disorders. Mood episodes are associated with changes in acute phase proteins such as high-sensitivity C-reactive protein (hsCRP). The present study investigated serum hsCRP in manic, depressed, and euthymic BD patients as compared to matched healthy controls. Serum hsCRP was assessed using an ultrasensitive assay of particle-enhanced immunoturbidimetric latex agglutination. Serum hsCRP levels were increased in manic BD patients, as compared to euthymic, depressed patients and healthy controls (P < 0.001). These findings add to the notion that changes in the inflammatory system take place during acute episodes of mania.
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Affiliation(s)
- Angelo B Cunha
- Department of Neuropsychiatry, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Faixa de Camobi Km 9, Santa Maria, RS, 97105-900, Brazil
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Tholstrup T, Raff M, Straarup EM, Lund P, Basu S, Bruun JM. An oil mixture with trans-10, cis-12 conjugated linoleic acid increases markers of inflammation and in vivo lipid peroxidation compared with cis-9, trans-11 conjugated linoleic acid in postmenopausal women. J Nutr 2008; 138:1445-51. [PMID: 18641189 DOI: 10.1093/jn/138.8.1445] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
A mixture of trans-10, cis-12 (t10,c12) and cis-9, trans-11 (c9,t11) conjugated linoleic acid (CLA mixture) reduced atherosclerosis in animals, thus the effect of these isomers on endothelial dysfunctions leading to inflammation and atherosclerosis is of interest. We gave 75 healthy postmenopausal women a daily supplement of 5.5 g of oil rich in either CLA mixture, an oil rich in the naturally occurring c9,t11 CLA (CLA milk), respectively, or olive oil for 16 wk in a double-blind, randomized, parallel intervention study. We sampled blood and urine before and after the intervention. The ratios of total cholesterol:HDL cholesterol and concentrations of C-reactive protein, fibrinogen, and plasminogen activator inhibitor-1 were significantly higher in women supplemented with the CLA mixture than in those supplemented with CLA milk. Plasma triacylglycerol was significantly higher and HDL cholesterol was lower in women supplemented with the CLA mixture than with olive oil. Both CLA supplements increased lipid peroxidation, a marker of in vivo oxidative stress measured as urinary free 8-iso-prostaglandin F(2alpha). However, the CLA mixture increased lipid peroxidation more than the CLA milk did. The plasma cytokines interleukin-6 and tumor necrosis factor-alpha were not affected by the treatments, nor were any of the other variables measured. In conclusion, oil containing trans-10,cis-12 CLA has several adverse effects on classical and novel markers of coronary vascular disease, whereas the c9,t11 CLA isomer is more neutral, except for a small but significant increase in lipid peroxidation compared with olive oil.
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Affiliation(s)
- Tine Tholstrup
- Department of Human Nutrition, Faculty of Life Science, University of Copenhagen, 1958 Frederiksberg, Denmark.
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Pendergrass KD, Pirro NT, Westwood BM, Ferrario CM, Brosnihan KB, Chappell MC. Sex differences in circulating and renal angiotensins of hypertensive mRen(2). Lewis but not normotensive Lewis rats. Am J Physiol Heart Circ Physiol 2008; 295:H10-20. [PMID: 18456730 PMCID: PMC2494740 DOI: 10.1152/ajpheart.01277.2007] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2007] [Accepted: 04/28/2008] [Indexed: 01/05/2023]
Abstract
Sex differences in blood pressure are evident in experimental models and human subjects, yet the mechanisms underlying this disparity remain equivocal. The current study sought to define the extent of male-female differences in the circulating and tissue renin-angiotensin aldosterone systems (RAASs) of congenic mRen(2). Lewis and control Lewis rats. Male congenics exhibited higher systolic blood pressure than females [200 +/- 4 vs. 146 +/- 7 mmHg, P < 0.01] or Lewis males and females [113 +/- 2 vs. 112 +/- 2 mmHg, P > 0.05]. Plasma ANG II levels were twofold higher in male congenics [47 +/- 3 vs. 19 +/- 3 pM, P < 0.01] and fivefold higher than in male or female Lewis rats [6 +/- 1 vs. 6 +/- 1 pM]. ANG I levels were also highest in the males; however, plasma ANG-(1-7) was higher in female congenics. Male congenics exhibited greater circulating renin and angiotensin-converting enzyme (ACE) activities, as well as angiotensinogen, than female littermates. Renal cortical and medullary ANG II levels were also higher in the male congenics versus all the other groups; ANG I was lower in the males. Cortical ACE2 activity was higher in male congenics, yet neprilysin activity and protein were greater in the females, which may contribute to reduced renal levels of ANG II. These data reveal that sex differences in both the circulating and renal RAAS are apparent primarily in the hypertensive group. The enhanced activity of the RAAS in male congenics may contribute to the higher pressure and tissue injury evident in the strain.
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Affiliation(s)
- Karl D Pendergrass
- Hypertension & Vascular Disease Ctr., Wake Forest Univ. Health Sciences, Winston-Salem, NC 27157-1095, USA
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Antoniades C, Tousoulis D, Stefanadis C. Smoking in Asians: it doesn't stop at vascular endothelium. Int J Cardiol 2008; 128:151-3. [PMID: 18485503 DOI: 10.1016/j.ijcard.2007.12.114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2007] [Accepted: 12/16/2007] [Indexed: 10/22/2022]
Abstract
Smoking is a global risk factor for atherosclerosis, affecting societies all over the world. Smoking exerts its pro-atherogenic effects by triggering the generation of free radicals and by modifying vascular redox signaling. These abnormal vascular responses to cigarette smoking result into impaired endothelial function, decreased nitric oxide bioavailability, increased intima media thickness and finally atherosclerotic plaque formation in human arteries. Importantly, evidence suggests that cigarette smoking may have an effect on vascular smooth muscle cells function, leading to impaired endothelium-independent dilation in response to nitrate, in the brachial artery of healthy smokers. Taken together, it is now well established that smoking induces functional and structural abnormalities in the vascular wall, by mechanisms involving endothelial dysfunction and impairment of vascular smooth muscle cells in human arterial tree.
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Otsuka T, Kawada T, Katsumata M, Ibuki C, Kusama Y. High-sensitivity C-reactive protein is associated with the risk of coronary heart disease as estimated by the Framingham Risk Score in middle-aged Japanese men. Int J Cardiol 2007; 129:245-50. [PMID: 17997174 DOI: 10.1016/j.ijcard.2007.07.099] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2006] [Revised: 06/20/2007] [Accepted: 07/06/2007] [Indexed: 10/22/2022]
Abstract
BACKGROUND High-sensitivity C-reactive protein (hsCRP) has emerged as an independent predictor of coronary heart disease (CHD) in Western countries. However, it is still uncertain regarding whether hsCRP is associated with the risk of CHD in Japan. METHODS The serum hsCRP levels were measured in 687 middle-aged Japanese male workers (age range; 40-59 years) during an annual health examination at a company in Kanagawa, Japan, in 2005. All participants were free from any cardiovascular diseases and any medications for hypertension, hyperlipidemia, or diabetes. The Framingham Risk Score (FRS) was calculated as an individual's risk level of future development of CHD. Associations between hsCRP and the FRS were then evaluated. RESULTS The distribution of hsCRP was skewed to the left with a median value (interquartile range) of 0.3 (0.2, 0.6) mg/L. Log-transformed hsCRP significantly correlated with all components of the FRS except for age. The FRS gradually and significantly increased (p=0.001 for trend) with an increase in the quartiles of hsCRP after adjusting for multiple potential confounders such as triglycerides, the body mass index, alcohol intake, and a family history of cardiovascular disease. For the highest quartile of hsCRP, crude and above-listed confounders-adjusted odds ratios of the high-risk for CHD (FRS>/=6 point) compared to the lowest quartile were 6.97 (95% CI: 3.20-15.17, p<0.001) and 3.85 (95% CI: 1.69-8.77, p=0.001), respectively. CONCLUSIONS These results suggest that hsCRP is associated with the risk of CHD, as estimated by the FRS, in middle-aged Japanese men.
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Affiliation(s)
- Toshiaki Otsuka
- Environmental Medicine, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
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