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Ren T, Xiong J, Liu G, Wang S, Tan Z, Fu B, Zhang R, Liao X, Wang Q, Guo Z. Imbalance of Th22/Treg cells causes microinflammation in uremic patients undergoing hemodialysis. Biosci Rep 2019; 39:BSR20191585. [PMID: 31427482 PMCID: PMC6822497 DOI: 10.1042/bsr20191585] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/05/2019] [Accepted: 08/16/2019] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Regulatory T (Treg) cells are of critical functionality in immune activation and inflammation in uremic patients undergoing hemodialysis (HD). A disruption in balance of Treg cells has potency to elicit infectious disease progression. Here, we examined possible association between ratio imbalance of Th22/Treg cells and microinflammation in uremic patients undergoing HD. METHODS Peripheral blood mononuclear cells (PBMCs) were isolated to allow measurement of the percentage of Th22 cells and Treg cells using flow cytometry. Subsequently, serum levels of related cytokines, interleukin (IL) 22 (IL-22) and IL-10 and inflammatory factors, C-reactive protein (CRP), (TNF-α), IL-6 were determined via enzyme-linked immunosorbent assay (ELISA). Then relationships among dialysis time, microinflammation status (CRP) and dialysis adequacy (immunoreactive parathyroid hormone (iPTH), urea clearance index (Kt/V), β2-MG, serum calcium, and serum phosphorus) were evaluated. Finally, correlation between microinflammation status and dialysis adequacy was analyzed with Pearson's correlation coefficient. RESULTS An increased percentage of Th22 and a decreased percentage of Treg cells were evident in uremic patients undergoing HD. Serum levels of IL-22, CRP, TNF-α, and IL-6 were increased, while IL-10 serum level was reduced. An imbalance of Th22/Treg cells was associated with microinflammation status in uremic patients undergoing HD. Furthermore, prolongation of the dialysis time, the microinflammation status and dialysis adequacy were changed. Increased dialysis adequacy was observed to correlate with alleviated microinflammation of uremic patients undergoing HD. CONCLUSIONS Conjointly, an imbalance of Th22/Treg cells may be a potential cause responsible for uremia occurrence, which in turn indicates that uremia could be effectively alleviated by altering the ratio of Th22/Treg cells.
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Affiliation(s)
- Tingting Ren
- The Eleventh People’s Hospital of Chengdu, Chengdu 610000, P.R. China
| | - Jingyuan Xiong
- West China School of Public Health and Healthy Food Evaluation Center, Sichuan University, Chengdu 610041, P.R. China
| | - Guangliang Liu
- The Eleventh People’s Hospital of Chengdu, Chengdu 610000, P.R. China
| | - Shaoyong Wang
- The Eleventh People’s Hospital of Chengdu, Chengdu 610000, P.R. China
| | - Zhongqi Tan
- The Eleventh People’s Hospital of Chengdu, Chengdu 610000, P.R. China
| | - Bin Fu
- The Eleventh People’s Hospital of Chengdu, Chengdu 610000, P.R. China
| | - Ruilin Zhang
- The Eleventh People’s Hospital of Chengdu, Chengdu 610000, P.R. China
| | - Xuesong Liao
- The Eleventh People’s Hospital of Chengdu, Chengdu 610000, P.R. China
| | - Qirong Wang
- The Eleventh People’s Hospital of Chengdu, Chengdu 610000, P.R. China
| | - Zonglin Guo
- The Eleventh People’s Hospital of Chengdu, Chengdu 610000, P.R. China
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Hu C, Wu X. Effect of Vitamin D Supplementation on Vascular Function and Inflammation in Patients with Chronic Kidney Disease: A Controversial Issue. Ther Apher Dial 2019; 24:265-274. [PMID: 31400089 DOI: 10.1111/1744-9987.13428] [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: 05/01/2019] [Revised: 08/06/2019] [Accepted: 08/08/2019] [Indexed: 12/22/2022]
Abstract
Vitamin D deficiency is common in patients with CKD and is associated with vascular dysfunction and inflammation. In recent years, some randomized controlled trials have revealed the effect of vitamin D supplementation on vascular function and inflammation in CKD patients, but the results are inconsistent. Thus, in light of the controversy, we performed a systematic review and meta-analysis of the effect of vitamin D in patients with CKD. We searched the literature in multiple databases for clinical trials from the date of inception to December 2018. The standardized mean difference (SMD) effect size was pooled using fixed and random effects models. A total of 10 randomized controlled trials involving 579 patients were included in the meta-analysis; among these, 313 patients were treated with vitamin D, and the control group included 266 who received a placebo. This meta-analysis revealed no statistical significance in the levels of flow-mediated dilatation (SMD, 0.94; 95% CI, -0.33 to 2.21; P = 0.15); pulse wave velocity (SMD, -0.13; 95% CI, -0.38 to 0.13; P = 0.33); systolic BP (SMD, -0.04; 95% CI, -0.29 to 0.22; P = 0.77); diastolic BP (SMD, 0.01; 95% CI, -0.26 to 0.27; P = 0.97); and CRP (SMD, -0.09; 95% CI, -0.44 to 0.26; P = 0.61) between the vitamin D group and controls for patients with CKD. Short-term intervention with vitamin D was not associated with improvements in vascular function and inflammation, as measured by flow-mediated dilatation, pulse wave velocity, systolic BP, diastolic BP and CRP. This suggested that there is insufficient evidence to conclude the benefit of vitamin D supplementation on vascular function and inflammation in CKD patients.
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Affiliation(s)
- Chun Hu
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xiaoyan Wu
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, China
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D'Antono B, Bouchard V. Impaired sleep quality is associated with concurrent elevations in inflammatory markers: are post-menopausal women at greater risk? Biol Sex Differ 2019; 10:34. [PMID: 31287027 PMCID: PMC6615113 DOI: 10.1186/s13293-019-0250-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 06/30/2019] [Indexed: 12/30/2022] Open
Abstract
Abstract Background Chronic inflammation and impaired sleep increase the risk for cardiovascular disease. Menopausal women may be particularly at risk as a result of impaired sleep. The objective of the current investigation was to assess the relationship between poor sleep and C-reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor alpha (TNF-α), and myeloperoxidase (MPO) in healthy non- and postmenopausal women and men. Methods A fasting blood draw was obtained from 122 healthy men and women (31 were postmenopausal). Higher scores on the Pittsburgh Sleep Quality Index (PSQI) were used to define poor sleep. Given the sample size and healthy nature of the sample, hierarchical linear regression analyses were performed on a composite inflammatory score involving CRP, IL-6, and TNF-α. Sex/menopausal group and PSQI were entered as predictors, and the interaction of the group by PSQI was entered stepwise. Analyses on MPO were performed separately. Results Sleep quality was associated with higher inflammatory activity (β = 0.272, P = 0.003), which remained significant (P = 0.046) after controlling for age, waist circumference, exercise times per week, and depressive symptoms. While in the same direction, sleep quality was not significantly associated with MPO. Dichotomizing sleep quality led to similar results. Conclusion Impaired sleep quality is independently associated with greater inflammation in healthy adult men and women. Despite an overall less favorable metabolic and inflammatory profile in postmenopausal women, impaired sleep did not emerge as differentially related to inflammatory activity in this group.
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Affiliation(s)
- Bianca D'Antono
- Research Center, Montreal Heart Institute, 5000 Belanger Street, Montreal, Quebec, H1T 1C8, Canada. .,Psychology Department, Université de Montréal, Montreal, Quebec, Canada.
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Kang B, Kim CY, Hwang J, Sun S, Yang H, Suh HJ, Choi HS. Red ginseng extract regulates differentiation of monocytes to macrophage and inflammatory signalings in human monocytes. Food Sci Biotechnol 2019; 28:1819-1828. [PMID: 31807355 DOI: 10.1007/s10068-019-00611-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 03/27/2019] [Accepted: 04/03/2019] [Indexed: 12/16/2022] Open
Abstract
This study was aimed to investigate the effect of red ginseng extract (RGE) on monocyte to macrophage differentiation and inflammatory signalings in THP-1 human monocytes. In HPLC analysis, RGE contained saponin level of 516 μg/mg (extract) with 14 ginsenosides. RGE effectively suppressed the monocyte-to-macrophage differentiation induced by phorbol 12-myristate 13-acetated (PMA) by inhibiting the THP-1 cell adhesion. This result is evidenced by the down-regulation of cluster of differentiation molecule β (CD11β) and CD36. RGE significantly reduced translocation of nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) (78%), while cytosolic NF-κB was increased (53%), compared with LPS group. In addition, RGE significantly increased the protein abundance of nuclear factor (erythroid-derived 2)-like 2 (Nrf2) and its target protein, hemoxygenase-1 (HO-1), but, Kelch-like ECH-associated protein 1 (KEAP1), a negative regulator of Nrf2, was greatly decreased by RGE. Furthermore, RGE effectively mediated the regulation of Nrf2 level in nucleus and cytoplasm of THP-1.
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Affiliation(s)
- Bobin Kang
- 1Department of Public Health Sciences, Korea University, Seoul, 07249 Republic of Korea
| | - Chae Young Kim
- 1Department of Public Health Sciences, Korea University, Seoul, 07249 Republic of Korea
| | - Jisu Hwang
- 1Department of Public Health Sciences, Korea University, Seoul, 07249 Republic of Korea
| | - Sojung Sun
- 2Department of Bioenvironmental Technology, College of Natural Science, Seoul Women's University, Seoul, 139-774 Republic of Korea
| | - Hyunwon Yang
- 2Department of Bioenvironmental Technology, College of Natural Science, Seoul Women's University, Seoul, 139-774 Republic of Korea
| | - Hyung Joo Suh
- 1Department of Public Health Sciences, Korea University, Seoul, 07249 Republic of Korea
| | - Hyeon-Son Choi
- 3Department of Food Science and Technology, College of Natural Science, Seoul Women's University, Seoul, 139-774 Republic of Korea
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Hu C, Yang M, Zhu X, Gao P, Yang S, Han Y, Chen X, Xiao L, Yuan S, Liu F, Kanwar YS, Sun L. Effects of Omega-3 Fatty Acids on Markers of Inflammation in Patients With Chronic Kidney Disease: A Controversial Issue. Ther Apher Dial 2018; 22:124-132. [PMID: 29271576 PMCID: PMC5880693 DOI: 10.1111/1744-9987.12611] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 08/09/2017] [Accepted: 08/16/2017] [Indexed: 11/30/2022]
Abstract
Chronic kidney disease (CKD) is a global problem which contributes to a significant morbidity and mortality in China. Concomitant inflammatory state further boosts the mortality due to cardiovascular events in patients with CKD undergoing dialysis. There is a general notion that Omega-3 fatty acids including docosahexaenoic acids (DHA) and eicosapentaenoic (EPA) have certain health benefits perhaps via the regulation of inflammation. However, the anti-inflammatory effect of omega-3 fatty acids in patients with CKD is controversial. We analyzed the data of oral supplementation of omega-3 fatty acids in CKD patients by searching literature on database from inception to August 2016. The analysis included randomized controlled trials (RCTs) derived from multiple databases, and the effect of omega-3 fatty acids supplementation versus the control cohorts were compared. All of the data analysis was calculated by RevMan 5.2. A total of 12 RCTs involving 487 patients were included in the meta-analysis. Among them 254 patients received omega-3 fatty acids and 233 patients served as controls who received placebo. The meta-analysis revealed no statistical significance in serum levels of C-reactive protein (CRP) (SMD, -0.20; 95% CI, -0.44 to 0.05; P = 0.11), IL-6 (SMD, 0.00; 95% CI, -0.33 to 0.33; P = 0.99) and TNF-α (SMD, 0.14; 95% CI, -0.17 to 0.44; P = 0.38) between the omega-3 fatty acids supplementation group and control. This suggested that there is insufficient evidence to conclude the benefit of omega-3 fatty acids oral supplementation in reducing serum levels of CRP, IL-6 and TNF-α in patients with CKD.
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Affiliation(s)
- Chun Hu
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ming Yang
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xuejing Zhu
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Peng Gao
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shikun Yang
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Nephrology, the third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yachun Han
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xianghui Chen
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Li Xiao
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shuguang Yuan
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fuyou Liu
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yashpal S. Kanwar
- Department of Pathology, Northwestern University, Chicago, Illinois; Department of Medicine, Northwestern University, Chicago, Illinois
| | - Lin Sun
- Department of Nephrology, 2 Xiangya Hospital, Central South University, Changsha, Hunan, China
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Mikirova NA, Kesari S, Ichim TE, Riordan NH. Effect of Infla-Kine supplementation on the gene expression of inflammatory markers in peripheral mononuclear cells and on C-reactive protein in blood. J Transl Med 2017; 15:213. [PMID: 29058588 PMCID: PMC5651612 DOI: 10.1186/s12967-017-1315-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 10/10/2017] [Indexed: 12/28/2022] Open
Abstract
Background Chronic inflammation is a predisposing factor to numerous degenerative diseases including cancer, heart failure and Alzheimer’s disease. Infla-Kine is a natural supplement comprised of a proprietary blend of Lactobacillus fermentum extract, burdock seed (arctigenin), zinc, alpha lipoic acid, papaya enzyme and an enhanced absorption bio-curcumin complex (BCM-95®). Methods Infla-Kine was administered twice daily to 24 health volunteers for 4 weeks. Quantitative RT-PCR was used to assess mRNA transcripts of IL-1b, IL8, IL-6, NF-κB, and TNF-α from peripheral blood mononuclear cells (PBMC). C reactive protein (CRP) was measured from serum. Additionally, quality of life questionnaires were employed to assess general feeling of well-being. Assessments were made before treatment and at conclusion of treatment (4 weeks). Results As compared to pre-treatment, after 4 weeks, a statistically significant reduction of IL8, IL-6, NF-κB, and TNF-α transcripts was observed in PBMC. Furthermore, reduction of IL-1b transcript and serum CRP was observed but did not reach statistical significance. Quality of life improvements were most prevalent in muscle and joint pains. Conclusions Overall, our data demonstrate that twice daily administration of Infla-Kine for 4 weeks reduces inflammatory markers and quality of life in healthy volunteers.
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Affiliation(s)
| | - Santosh Kesari
- Department of Translational Neuro-Oncology and Neuro-therapeutics, John Wayne Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA
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Taheri S, Baradaran A, Aliakbarian M, Mortazavi M. Level of inflammatory factors in chronic hemodialysis patients with and without cardiovascular disease. JOURNAL OF RESEARCH IN MEDICAL SCIENCES 2017; 22:47. [PMID: 28567066 PMCID: PMC5426091 DOI: 10.4103/jrms.jrms_282_15] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 08/23/2015] [Accepted: 01/22/2017] [Indexed: 12/12/2022]
Abstract
Background: Considering the existence of controversies about the predictive value of inflammatory markers for cardiovascular disease (CVD), we aimed to compare the level of high-sensitivity C-reactive protein (hs-CRP) and interlukin-6 (IL-6) level in chronic hemodialysis (HD) patients with and without CVD. Materials and Methods: In this historical cohort study, HD patients with and without CVD disease were enrolled. The presence of CVD risk factors, level of inflammatory factors including IL-6 and hs-CRP as well as lipid levels, fasting blood sugar, and other biochemical factors were compared in two studied groups. Results: During the study, eighty HD patients with (n = 40) and without (n = 40) CVD were enrolled. Diabetes was more prevalent among HD patients with CVD than those without CVD (P < 0.05). The level of IL-6 and hs-CRP were not different in two studied groups (P > 0.05). Univariate analysis of variance test indicated that there was not any significant relationship between hs-CRP and CVD (P > 0.05). Conclusion: The findings indicated that the level of inflammatory factors including hs-CRP and IL-6 are not significantly different in HD patients with and without CVD. However, for obtaining more definite conclusion in this field and evaluation their predicting role in this field, it is recommended to study other novel inflammatory markers as well as the additive effect of the inflammatory factors with traditional ones in larger sample size and longer follow-up.
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Affiliation(s)
- Shahram Taheri
- Department of Internal Medicine, Isfahan Kidney Diseases Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Azar Baradaran
- Department of Pathology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahnaz Aliakbarian
- Department of Pathology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mojgan Mortazavi
- Department of Internal Medicine, Isfahan Kidney Diseases Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Rusu C, Racasan S, Moldovan D, Kacso IM, Potra A, Bondor CI, Patiu IM, Vladutiu D, Caprioara MG. Soluble CD40 ligand in haemodialysis patients: survival impact and cardiovascular prognostic role. Biomarkers 2016; 22:232-238. [PMID: 27295448 DOI: 10.1080/1354750x.2016.1201531] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
CONTEXT Soluble CD40 ligand (sCD40l) can predict cardiovascular events (CVE) and mortality in haemodialysis (HD) patients (short-, medium-term follow-up studies). OBJECTIVE To evaluate the relationship between sCD40l and survival, CVE and mortality in HD patients on long-term follow-up. METHODS We registered 46 HD patients' baseline characteristics, mortality and CVE for 108 months. RESULTS SCD40l correlated positively with C-reactive protein, was higher in survivors, but had no impact on survival and was not predictive for CVE or CV mortality. CONCLUSION The levels of sCD40l have no influence on survival or CVE and mortality in HD patients in a long-term follow-up.
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Affiliation(s)
- Crina Rusu
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | | | - Diana Moldovan
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | - Ina Maria Kacso
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | - Alina Potra
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | - Cosmina Ioana Bondor
- c Department of Statistics , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | | | - Dan Vladutiu
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | - Mirela Gherman Caprioara
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
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Genetic Variants of CD40 Gene Are Associated with Coronary Artery Disease and Blood Lipid Levels. BIOMED RESEARCH INTERNATIONAL 2016; 2016:1693619. [PMID: 27200368 PMCID: PMC4854982 DOI: 10.1155/2016/1693619] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 03/31/2016] [Accepted: 04/04/2016] [Indexed: 01/25/2023]
Abstract
Objectives. The present study aimed to evaluate the effect of CD40 and CXCR4 genes polymorphisms on CAD susceptibility and the blood lipid levels and history of cardiovascular risk factors in a Chinese Han population. Materials and Methods. A total of 583 unrelated patients with CAD and 540 controls were recruited. Two tag SNPs (rs4239702 and rs1535045) at the CD40 locus and one tag SNP (rs2228014) at the CXCR4 locus were genotyped using the SEQUENOM Mass-ARRAY system. Results. After adjusting the risk factors, the frequency of rs1535045-T allele was also higher in patients than controls. Haplotype analysis showed that the rs4239702(C)-rs1535045(T) haplotype was associated with CAD. People with rs4239702-TT genotype had higher blood lipid levels in case group while it was not in the control group. History of cardiovascular risk factors showed no association for the three SNPs in case group and control group. Conclusions. rs1535045 in CD40 gene is likely to be associated with CAD in the Chinese Han population. rs4239702(C)-rs1535045(T) haplotype was associated with CAD. Only in CAD patients, the blood lipid level of patients with rs4239702-TT genotype was higher than other patients. CXCR4 gene may not relate to CAD.
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Platelet - derived CD154 antigen in patients with chronic kidney disease. Clin Biochem 2016; 49:243-7. [DOI: 10.1016/j.clinbiochem.2015.11.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 11/01/2015] [Accepted: 11/02/2015] [Indexed: 01/04/2023]
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Li YY, Zhou CW, Xu J, Qian Y, Wang XM. Interleukin-6 C-572G gene polymorphism and coronary artery disease in Asian: a meta-analysis of 2511 subjects. Int J Clin Exp Med 2015; 8:8995-9003. [PMID: 26309552 PMCID: PMC4538149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 05/21/2015] [Indexed: 06/04/2023]
Abstract
The interleukin-6 (IL-6) C-572G gene polymorphism has been suggested to be associated with the increased coronary artery disease (CAD) risk, but the study results are still debatable. To explore the association between IL-6 C-572G gene polymorphism and CAD in the Asian population, the current meta-analysis involving 2511 subjects from 7 separate studies was conducted. The combined odds ratio (ORs) for the association between IL-6 C-572G gene polymorphism and CAD and their corresponding 95% confidence intervals (95% CIs) were assessed by random or fixed effect model. A significant association between IL-6 C-572G gene polymorphism and CAD was found in the Asian population under an allelic (OR: 1.50, 95% CI: 1.30-1.71, P<0.00001), recessive (OR: 2.221, 95% CI: 1.444-3.417, P=1.0×10(-10)) dominant (OR: 1.313, 95% CI: 1.188-1.451, P=1.0×10(-10)), homozygous (OR: 2.454, 95% CI: 1.606-3.751, P=1.0×10(-10)), heterozygous (OR: 3.01, 95% CI:1.99-4.55, P<0.00001) and additive genetic models (OR: 1.372, 95% CI: 1.231-1.528, P=1.0×10(-10)). In the Asian population, the IL-6 C-572G gene polymorphism was indicated to be correlated with CAD susceptibility. The carriers of -572G allele might be predisposed to CAD risk.
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Affiliation(s)
- Yan-Yan Li
- Department of Geriatrics, First Affiliated Hospital of Nanjing Medical University Nanjing 210029, China
| | - Chuan-Wei Zhou
- Department of Geriatrics, First Affiliated Hospital of Nanjing Medical University Nanjing 210029, China
| | - Jian Xu
- Department of Geriatrics, First Affiliated Hospital of Nanjing Medical University Nanjing 210029, China
| | - Yun Qian
- Department of Geriatrics, First Affiliated Hospital of Nanjing Medical University Nanjing 210029, China
| | - Xiang-Ming Wang
- Department of Geriatrics, First Affiliated Hospital of Nanjing Medical University Nanjing 210029, China
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Huang J, Yi B, Li AM, Zhang H. Effects of vitamin E-coated dialysis membranes on anemia, nutrition and dyslipidemia status in hemodialysis patients: a meta-analysis. Ren Fail 2015; 37:398-407. [DOI: 10.3109/0886022x.2014.1001281] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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The signaling role of CD40 ligand in platelet biology and in platelet component transfusion. Int J Mol Sci 2014; 15:22342-64. [PMID: 25479079 PMCID: PMC4284712 DOI: 10.3390/ijms151222342] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 11/25/2014] [Accepted: 11/27/2014] [Indexed: 12/13/2022] Open
Abstract
The CD40 ligand (CD40L) is a transmembrane molecule of crucial interest in cell signaling in innate and adaptive immunity. It is expressed by a variety of cells, but mainly by activated T-lymphocytes and platelets. CD40L may be cleaved into a soluble form (sCD40L) that has a cytokine-like activity. Both forms bind to several receptors, including CD40. This interaction is necessary for the antigen specific immune response. Furthermore, CD40L and sCD40L are involved in inflammation and a panoply of immune related and vascular pathologies. Soluble CD40L is primarily produced by platelets after activation, degranulation and cleavage, which may present a problem for transfusion. Soluble CD40L is involved in adverse transfusion events including transfusion related acute lung injury (TRALI). Although platelet storage designed for transfusion occurs in sterile conditions, platelets are activated and release sCD40L without known agonists. Recently, proteomic studies identified signaling pathways activated in platelet concentrates. Soluble CD40L is a good candidate for platelet activation in an auto-amplification loop. In this review, we describe the immunomodulatory role of CD40L in physiological and pathological conditions. We will focus on the main signaling pathways activated by CD40L after binding to its different receptors.
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Campos B, Lee T, Roy-Chaudhury P. Arteriovenous fistula failure: is there a role for epigenetic regulation? Semin Nephrol 2014; 33:400-6. [PMID: 24011582 DOI: 10.1016/j.semnephrol.2013.05.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Epigenetics is the study of heritable changes in gene expression or cellular phenotype that occur without alterations in the DNA sequence. In the past decade, epigenetics has been identified as a key regulator of gene expression and therefore is likely to play a major role in multiple disease processes. More importantly, we now recognize epigenetics to be a sensitive, dynamic, and reversible process that has opened the door to multiple novel diagnostic, prognostic, and therapeutic strategies for human diseases. The focus of this review, however, is to explore the potential role of epigenetics in arteriovenous fistula (AVF) maturation. AVF maturation failure is currently the single most important cause of dialysis vascular access dysfunction and most important is the result of a peri-anastomotic stenosis thought to be caused by a combination of neointimal hyperplasia and inadequate outward remodeling. At a pathogenetic level, however, AVF maturation failure is likely the end result of the interaction between hemodynamic stressors (injury) and the vascular response to these stressors; the latter being influenced by uremia, oxidative stress, and inflammation. Interestingly, these same factors (hemodynamic shear stress, oxidative stress, inflammation, and uremia) are also important mediators of epigenetic modifications. We therefore believe that epigenetic factors potentially could play an important role in the pathogenesis of AVF maturation failure. The current review therefore tries to unravel some of these critical biological connections, with an emphasis on the future development of epigenetic-based diagnostic and therapeutic strategies for AVF maturation failure (a clinical problem for which there are currently no effective therapeutic interventions).
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Affiliation(s)
- Begoña Campos
- Dialysis Vascular Access Research Group, Division of Nephrology and Hypertension, Department of Medicine, University of Cincinnati, Cincinnati, OH
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Yang SK, Xiao L, Xu B, Xu XX, Liu FY, Sun L. Effects of vitamin E-coated dialyzer on oxidative stress and inflammation status in hemodialysis patients: a systematic review and meta-analysis. Ren Fail 2014; 36:722-31. [DOI: 10.3109/0886022x.2014.890858] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Allogeneic bone marrow mesenchymal stem cells transplantation for stabilizing and repairing of atherosclerotic ruptured plaque. Thromb Res 2013; 131:e253-7. [DOI: 10.1016/j.thromres.2013.04.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 02/25/2013] [Accepted: 04/01/2013] [Indexed: 01/16/2023]
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