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Lin S, Wang Z, Lam KL, Zeng S, Tan BK, Hu J. Role of intestinal microecology in the regulation of energy metabolism by dietary polyphenols and their metabolites. Food Nutr Res 2019; 63:1518. [PMID: 30814920 PMCID: PMC6385797 DOI: 10.29219/fnr.v63.1518] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 12/01/2018] [Accepted: 12/18/2018] [Indexed: 12/24/2022] Open
Abstract
Background Polyphenols are a class of plant secondary metabolites with a variety of physiological functions. Polyphenols and their intestinal metabolites could greatly affect host energy metabolism via multiple mechanisms. Objective The objective of this review was to elaborate the role of intestinal microecology in the regulatory effects of dietary polyphenols and their metabolites on energy metabolism. Methods In this review, we illustrated the potential mechanisms of energy metabolism regulated by the crosstalk between polyphenols and intestinal microecology including intestinal microbiota, intestinal epithelial cells, and mucosal immune system. Results Polyphenols can selectively regulate the growth of susceptible microorganisms (eg. reducing the ratio of Firmicutes to Bacteroides, promoting the growth of beneficial bacteria and inhibiting pathogenic bacteria) as well as alter bacterial enzyme activity. Moreover, polyphenols can influence the absorption and secretion of intestinal epithelial cells, and alter the intestinal mucosal immune system. Conclusion The intestinal microecology play a crucial role for the regulation of energy metabolism by dietary polyphenols.
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Affiliation(s)
- Shaoling Lin
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zhengyu Wang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Ka-Lung Lam
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Shaoxiao Zeng
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Bee K Tan
- Departments of Cardiovascular Sciences, Health Sciences and Leicester Diabetes Centre, College of Life Sciences, University of Leicester, University Road, Leicester, United Kingdom
| | - Jiamiao Hu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, China
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Almeida NCC, Queiroz MAF, Lima SS, Brasil Costa I, Ayin Fossa MA, Vallinoto ACR, Ishak MDOG, Ishak R. Association of Chlamydia trachomatis, C. pneumoniae, and IL-6 and IL-8 Gene Alterations With Heart Diseases. Front Immunol 2019; 10:87. [PMID: 30804931 PMCID: PMC6370681 DOI: 10.3389/fimmu.2019.00087] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 01/11/2019] [Indexed: 12/02/2022] Open
Abstract
Atherosclerosis is a progressive disease characterized by chronic inflammation of the arterial walls, associated with genetic and infectious factors. The present study investigated the involvement of Chlamydia trachomatis and Chlamydia pneumoniae infections and immunological markers (C-reactive protein, CRP, TNF-α, IL-6, IL-8, and IL-10) in the process of atherosclerosis. The evaluation included 159 patients for surgical revascularization (CAD) and 71 patients for surgical heart valve disease (HVD) at three hospitals in Belém, Brazil. The control group (CG) comprised 300 healthy individuals. Blood samples collected before surgery were used for antibodies detection (enzyme immunoassay), CRP (immunoturbidimetry) and IL-6 levels (enzyme immunoassay). Tissue fragments (atheroma plaque, heart valve and ascending aorta) were collected during surgery and subjected to qPCR for detection of bacterial DNA. Promoter region polymorphisms of each marker and relative quantification of TNF-α, IL-8, and IL-10 gene expression were performed. Demography and social information were similar to the general population involved with both diseases. Antibody prevalence to C. trachomatis was 30.6, 20.3, and 36.7% (in the CAD, HVD, and CG, respectively) and to C. pneumoniae was 83.6, 84.5, and 80.3% (in the CAD, HVD, and CG, respectively). C. trachomatis cryptic plasmid DNA was detected in 7.4% of the samples. Frequency of IL6−174G>C polymorphism was higher in CAD and HVD than in CG regardless of previous exposure to Chlamydia. Previous C. trachomatis infection showed involvement in HVD and CAD. Significant association between disease and previous C. pneumoniae infection was found only among HVD. GG genotype of IL6−174G>C is apparently a risk factor for heart disease, whereas AT genotype of IL8−251A>T was mainly involved in valvulopathies, including patients with prior exposure to C. pneumoniae.
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Affiliation(s)
| | | | - Sandra Souza Lima
- Virus Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | | | | | | | | | - Ricardo Ishak
- Virus Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
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Di Napoli M, Slevin M, Popa-Wagner A, Singh P, Lattanzi S, Divani AA. Monomeric C-Reactive Protein and Cerebral Hemorrhage: From Bench to Bedside. Front Immunol 2018; 9:1921. [PMID: 30254628 PMCID: PMC6141664 DOI: 10.3389/fimmu.2018.01921] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 08/03/2018] [Indexed: 12/14/2022] Open
Abstract
C-reactive protein (CRP) is an important mediator and a hallmark of the acute-phase response to inflammation. High-sensitivity assays that accurately measure levels of CRP have been recommended for use in risk assessment in ischemic stroke patients. Elevation of CRP during the acute-phase response in intracerebral hemorrhage (ICH) is also associated with the outcomes such as death and vascular complications. However, no association has been found with the increased risk of ICH. The aim of this review is to synthesize the published literature on the associations of CRP with acute ICH both as a risk biomarker and predictor of short- and long-term outcomes as well as its role as a pathogenic determinant. We believe before any clinical utility, a critical appraisal of the strengths and deficiencies of the accumulated evidence is required both to evaluate the current state of knowledge and to improve the design of future clinical studies.
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Affiliation(s)
- Mario Di Napoli
- Department of Neurology and Stroke Unit, San Camillo de' Lellis General Hospital, Rieti, Italy
| | - Mark Slevin
- Healthcare Science, Manchester Metropolitan University, Manchester, United Kingdom
| | - Aurel Popa-Wagner
- Department of Neurology, University of Medicine Essen, Essen, Germany.,Center of Clinical and Experimental Medicine, University of Medicine and Pharmacy, Craiova, Romania
| | - Puneetpal Singh
- Department of Human Genetics, Punjabi University, Patiala, India
| | - Simona Lattanzi
- Neurological Clinic, Department of Experimental and Clinical Medicine, Marche Polytechnic University, Ancona, Italy
| | - Afshin A Divani
- Department of Neurology, University of Minnesota, Minneapolis, MN, United States.,Department of Neurosurgery, University of Minnesota, Minneapolis, MN, United States
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Sproston NR, Ashworth JJ. Role of C-Reactive Protein at Sites of Inflammation and Infection. Front Immunol 2018; 9:754. [PMID: 29706967 PMCID: PMC5908901 DOI: 10.3389/fimmu.2018.00754] [Citation(s) in RCA: 1378] [Impact Index Per Article: 229.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 03/26/2018] [Indexed: 01/08/2023] Open
Abstract
C-reactive protein (CRP) is an acute inflammatory protein that increases up to 1,000-fold at sites of infection or inflammation. CRP is produced as a homopentameric protein, termed native CRP (nCRP), which can irreversibly dissociate at sites of inflammation and infection into five separate monomers, termed monomeric CRP (mCRP). CRP is synthesized primarily in liver hepatocytes but also by smooth muscle cells, macrophages, endothelial cells, lymphocytes, and adipocytes. Evidence suggests that estrogen in the form of hormone replacement therapy influences CRP levels in the elderly. Having been traditionally utilized as a marker of infection and cardiovascular events, there is now growing evidence that CRP plays important roles in inflammatory processes and host responses to infection including the complement pathway, apoptosis, phagocytosis, nitric oxide (NO) release, and the production of cytokines, particularly interleukin-6 and tumor necrosis factor-α. Unlike more recent publications, the findings of early work on CRP can seem somewhat unclear and at times conflicting since it was often not specified which particular CRP isoform was measured or utilized in experiments and whether responses attributed to nCRP were in fact possibly due to dissociation into mCRP or lipopolysaccharide contamination. In addition, since antibodies for mCRP are not commercially available, few laboratories are able to conduct studies investigating the mCRP isoform. Despite these issues and the fact that most CRP research to date has focused on vascular disorders, there is mounting evidence that CRP isoforms have distinct biological properties, with nCRP often exhibiting more anti-inflammatory activities compared to mCRP. The nCRP isoform activates the classical complement pathway, induces phagocytosis, and promotes apoptosis. On the other hand, mCRP promotes the chemotaxis and recruitment of circulating leukocytes to areas of inflammation and can delay apoptosis. The nCRP and mCRP isoforms work in opposing directions to inhibit and induce NO production, respectively. In terms of pro-inflammatory cytokine production, mCRP increases interleukin-8 and monocyte chemoattractant protein-1 production, whereas nCRP has no detectable effect on their levels. Further studies are needed to expand on these emerging findings and to fully characterize the differential roles that each CRP isoform plays at sites of local inflammation and infection.
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Affiliation(s)
- Nicola R Sproston
- School of Healthcare Science, Manchester Metropolitan University, Manchester, United Kingdom
| | - Jason J Ashworth
- School of Healthcare Science, Manchester Metropolitan University, Manchester, United Kingdom
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Genetics of Atherosclerosis. Coron Artery Dis 2018. [DOI: 10.1016/b978-0-12-811908-2.00007-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Staging the tumor and staging the host: A two centre, two country comparison of systemic inflammatory responses of patients undergoing resection of primary operable colorectal cancer. Am J Surg 2017; 216:458-464. [PMID: 28967380 DOI: 10.1016/j.amjsurg.2017.08.044] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 08/24/2017] [Accepted: 08/30/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND How systemic inflammation-based prognostic scores such as the modified Glasgow Prognostic Score (mGPS) and neutrophil:lymphocyte ratio (NLR) differ across populations of patients with colorectal cancer (CRC) remains unknown. The present study examined the mGPS and NLR in patients from United Kingdom (UK) and Japan. METHODS Patients undergoing resection of TNM I-III CRC in two centres in the UK and Japan were included. Differences in clinicopathological characteristics and mGPS (0-CRP≤10 mg/L, 1-CRP>10 mg/L, 2-CRP>10 mg/L, albumin<35 g/L) and NLR (≤5/>5) were examined. RESULTS Patients from UK (n = 581) were more likely to be female, high ASA and BMI, present as an emergency (all P < 0.01) and have higher T stage compared to those from Japan (n = 559). After controlling for differences in tumor and host characteristics, patients from Japan were less likely to be systemically inflamed (OR: mGPS: 0.37, 95%CI 0.27-0.50, P < 0.001; NLR: 0.53, 95%CI 0.35-0.79, P = 0.002). CONCLUSION Systemic inflammatory responses differ between populations with colorectal cancer. Given their prognostic value, reporting of systemic inflammation-based scores should be incorporated into future studies reporting patient outcomes.
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Rice M, Turner-Henson A, Hage FG, Azuero A, Joiner C, Affuso O, Ejem D, Davis SL, Soistmann H. Factors That Influence Blood Pressure in 3- to 5-Year-Old Children: A Pilot Study. Biol Res Nurs 2017; 20:25-31. [DOI: 10.1177/1099800417726598] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
While incident elevations in blood pressure (BP) are apparent in preschool years, factors influencing BP in this population have received little attention. The purposes of this pilot study were to determine the feasibility of collecting data from preschoolers and their mothers and to determine effect sizes of relationships between BP and sex, race, birth status, body mass index (BMI), waist circumference (WC), geographic location, serum C-reactive protein (CRP), and salivary cortisol (morning, afternoon). A hypothesis-generating correlational design was used; 56 children, aged 3–5 years, were enrolled from six rural and urban Head Start programs in a southeastern state. On Day 1 of data collection, mothers completed demographic questionnaires and children had blood drawn by finger stick. On Day 2, children gave saliva samples for cortisol, were measured for height by stadiometer, weight by digital scales, and WC by tape measure and had their BP measured by Dinamap. Incident elevations in BP were found in 30% of children (17/56), the majority of which were of systolic BP; 65% of those with elevations were of normal weight. Data collection was feasible with few problems. Small-to-medium effect sizes were noted for BP status (normal, prehypertensive, and hypertensive) and cortisol p.m. and birth status (parent-reported prematurity or term); small effect sizes were seen for BP status and BMI, race, sex, and geographic location. CRP and cortisol had medium- and small-to-medium effect sizes, respectively, with diastolic blood pressure. Studies with larger, more diverse samples need to be conducted to test hypotheses posited from these estimated effect sizes.
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Affiliation(s)
- Marti Rice
- School of Nursing, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Anne Turner-Henson
- School of Nursing, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Fadi G. Hage
- School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Andres Azuero
- School of Nursing, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Cynthia Joiner
- School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Olivia Affuso
- School of Public Health, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Deborah Ejem
- School of Nursing, University of Alabama at Birmingham, Birmingham, AL, USA
| | | | - Heather Soistmann
- School of Nursing, University of Alabama at Birmingham, Birmingham, AL, USA
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Onuma H, Tabara Y, Kawamura R, Ohashi J, Nishida W, Takata Y, Ochi M, Nishimiya T, Ohyagi Y, Kawamoto R, Kohara K, Miki T, Osawa H. Dual Effects of a RETN Single Nucleotide Polymorphism (SNP) at -420 on Plasma Resistin: Genotype and DNA Methylation. J Clin Endocrinol Metab 2017; 102:884-892. [PMID: 27929711 DOI: 10.1210/jc.2016-2417] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 12/07/2016] [Indexed: 02/03/2023]
Abstract
CONTEXT We previously reported that single nucleotide polymorphism (SNP)-420 C>G (rs1862513) in the promoter region of RETN was associated with type 2 diabetes. Plasma resistin was tightly correlated with SNP-420 genotypes. SNP-420 is a CpG-SNP affecting the sequence of cytosine-phosphate-guanine dinucleotides. OBJECTIVE To examine whether methylation at SNP-420 affects plasma resistin, we analyzed plasma resistin and methylation at RETN SNP-420. DESIGN AND METHODS Genomic DNA was extracted from peripheral white blood cells in 2078 Japanese subjects. Quantification of the methylation was performed by pyrosequencing after DNA bisulfite conversion. RESULTS Methylation at SNP-420 was highest in the C/C genotype (36.9 ± 5.7%), followed by C/G (21.4 ± 3.5%) and G/G (2.9 ± 1.4%; P < 0.001). When assessed in each genotype, methylation at SNP-420 was inversely associated with plasma resistin in the C/C (β = -0.134, P < 0.001) or C/G (β = -0.227, P < 0.001) genotype. In THP-1 human monocytes intrinsically having the C/C genotype, a demethylating reagent, 5-aza-dC, decreased the methylation at SNP-420 and increased RETN messenger RNA. SNP+1263 (rs3745369), located in the 3' untranslated region of RETN, was also associated with methylation at SNP-420. In addition, highly sensitive C-reactive protein was inversely associated with methylation at SNP-420 in the C/C genotype, whereas body mass index was positively associated. CONCLUSIONS Plasma resistin was inversely associated with the extent of methylation at SNP-420 mainly dependent on the SNP-420 genotype. The association can also be explained partially independent of SNP-420 genotypes. SNP-420 could have dual, genetic and epigenetic effects on plasma resistin.
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Affiliation(s)
| | - Yasuharu Tabara
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan; and
| | | | - Jun Ohashi
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo 113-8654, Japan
| | | | | | | | | | | | - Ryuichi Kawamoto
- Community Medicine, Ehime University Graduate School of Medicine, Ehime 791-0295, Japan
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Yu H, Huang Y, Chen X, Nie W, Wang Y, Jiao Y, Reed GL, Gu W, Chen H. High-sensitivity C-reactive protein in stroke patients - The importance in consideration of influence of multiple factors in the predictability for disease severity and death. J Clin Neurosci 2017; 36:12-19. [PMID: 27825611 PMCID: PMC11364373 DOI: 10.1016/j.jocn.2016.10.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 10/15/2016] [Indexed: 02/06/2023]
Abstract
High sensitivity C-reactive protein (hsCRP) has been evaluated as a biomarker in stroke and relevant pathological diseases. While its predictive values in several pathological phenotypes have been confirmed, controversy exists among different studies. This review summarizes reports of the predictive values of hsCRP for the diagnosis, etiology, prognosis and mortality of stroke diseases. The current literature suggests that CRP expression is influenced by multiple factors, such as polymorphisms, the genomic backgrounds and gender. However, few reported studies analyzed data based on all these multiple factors. Future studies should focus on comprehensive analysis based on multiple factors.
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Affiliation(s)
- Hong Yu
- Center of Integrative Research, The First Hospital of Qiqihar City, Qiqihar, Heilongjiang 161005, PR China; Department of Orthopedic Surgery and BME-Campbell Clinic, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Yue Huang
- Department of Orthopedic Surgery and BME-Campbell Clinic, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - XinYu Chen
- Center of Integrative Research, The First Hospital of Qiqihar City, Qiqihar, Heilongjiang 161005, PR China
| | - WenBao Nie
- Center of Integrative Research, The First Hospital of Qiqihar City, Qiqihar, Heilongjiang 161005, PR China
| | - YongJun Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, PR China
| | - Yan Jiao
- Department of Orthopedic Surgery and BME-Campbell Clinic, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Guy L Reed
- Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Weikuan Gu
- Department of Orthopedic Surgery and BME-Campbell Clinic, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
| | - Hong Chen
- Center of Integrative Research, The First Hospital of Qiqihar City, Qiqihar, Heilongjiang 161005, PR China.
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Effects of flavonoids on intestinal inflammation, barrier integrity and changes in gut microbiota during diet-induced obesity. Nutr Res Rev 2016; 29:234-248. [PMID: 27841104 DOI: 10.1017/s0954422416000159] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Diet-induced obesity is associated with low-grade inflammation, which, in most cases, leads to the development of metabolic disorders, primarily insulin resistance and type 2 diabetes. Although prior studies have implicated the adipose tissue as being primarily responsible for obesity-associated inflammation, the latest discoveries have correlated impairments in intestinal immune homeostasis and the mucosal barrier with increased activation of the inflammatory pathways and the development of insulin resistance. Therefore, it is essential to define the mechanisms underlying the obesity-associated gut alterations to develop therapies to prevent and treat obesity and its associated diseases. Flavonoids appear to be promising candidates among the natural preventive treatments that have been identified to date. They have been shown to protect against several diseases, including CVD and various cancers. Furthermore, they have clear anti-inflammatory properties, which have primarily been evaluated in non-intestinal models. At present, a growing body of evidence suggests that flavonoids could exert a protective role against obesity-associated pathologies by modulating inflammatory-related cellular events in the intestine and/or the composition of the microbiota populations. The present paper will review the literature to date that has described the protective effects of flavonoids on intestinal inflammation, barrier integrity and gut microbiota in studies conducted using in vivo and in vitro models.
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Kaspersen KA, Dinh KM, Erikstrup LT, Burgdorf KS, Pedersen OB, Sørensen E, Petersen MS, Hjalgrim H, Rostgaard K, Nielsen KR, Ullum H, Erikstrup C. Low-Grade Inflammation Is Associated with Susceptibility to Infection in Healthy Men: Results from the Danish Blood Donor Study (DBDS). PLoS One 2016; 11:e0164220. [PMID: 27701463 PMCID: PMC5049789 DOI: 10.1371/journal.pone.0164220] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Accepted: 09/21/2016] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION The aim of this study was to examine whether low-grade inflammation (LGI) is associated with a subsequently increased risk of infection. METHODS We included 15,754 healthy participants from the Danish Blood Donor Study, who completed a questionnaire on health-related items. LGI was defined as a C-reactive protein level between 3 and 10 mg/L. Infections were identified by ICD-10 codes in the Danish National Patient Register and ATC-codes in the Danish Prescription Register. Multivariable Cox proportional hazard analysis was used as the statistical model. RESULTS During 53,302 person-years of observation, 571 participants were hospitalized for infection. Similarly, during 26,125 person-years of observation, 7,276 participants filled a prescription of antimicrobials. LGI was associated with increased risk of hospital-based treatment for infection only among men (hazard ratio = 1.60, 95% confidence interval (CI): 1.10-2.34) and specifically infections were abscesses and infections of the skin and subcutaneous tissue. Similarly, LGI was associated with the overall use of antimicrobials among men, and particularly with phenoxymethylpenicillin and broad-spectrum antimicrobials for treatment of urinary tract infections. The difference between men and women was not statistically significant. CONCLUSIONS In a large cohort of healthy individuals, LGI was associated with an increased risk of infection among healthy male blood donors.
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Affiliation(s)
| | - Khoa Manh Dinh
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | | | | | | | - Erik Sørensen
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen S, Denmark
| | | | - Henrik Hjalgrim
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen S, Denmark
| | - Klaus Rostgaard
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen S, Denmark
| | - Kaspar Rene Nielsen
- Department of Clinical Immunology, Aalborg University Hospital, Aalborg, Denmark
| | - Henrik Ullum
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen S, Denmark
| | - Christian Erikstrup
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
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Sudhesan A, Rajappa M, Chandrashekar L, Ananthanarayanan PH, Thappa DM, Satheesh S, Chandrasekaran A, Devaraju P. Association of C-Reactive Protein (rs1205) Gene Polymorphism with Susceptibility to Psoriasis in South Indian Tamils. J Clin Diagn Res 2016; 10:GC01-GC04. [PMID: 27891353 DOI: 10.7860/jcdr/2016/23391.8624] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Accepted: 09/16/2016] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Psoriasis is a multi-factorial heritable T-helper Th-1/Th-17 mediated inflammatory disease, affecting the skin. It is associated with co-morbidities such as Cardiovascular Disease (CVD). C-Reactive Protein (CRP) is a good inflammatory marker. CRP rs1205 polymorphism is associated with circulating plasma CRP levels. Although there is association between the rs1205 Single Nucleotide Polymorphism (SNP) and CVD, there are no prior reports regarding the association of CRP rs1205 SNP with psoriasis susceptibility. AIM To study the association of the genetic variant rs1205 in the CRP gene with susceptibility to the disease and protein levels in South Indian Tamils with psoriasis. MATERIALS AND METHODS In this case-control genetic study, 300 cases of psoriasis and 300 age and gender matched controls were genotyped for CRP SNP rs1205 using Taq Man 5'allele discrimination assay at Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India from February 2014 to January 2016. Plasma high sensitivity (hs)-CRP levels were estimated by ELISA. Disease severity was assessed by Psoriasis Area Severity Index (PASI). RESULTS CRP genetic variation rs1205 was not associated with psoriasis risk in our South Indian Tamil population. However, the circulating levels of hs-CRP was significantly higher in patients with psoriasis, as compared with controls (p < 0.0001) and the protein levels were significantly associated with disease severity, as assessed by PASI scoring. No genotype was found significantly associated with PASI or CRP levels. CONCLUSION Our results suggest that plasma CRP levels are higher in patients with psoriasis and correlate with disease severity, whilst CRP rs1205 is not associated with susceptibility to psoriasis in South Indian Tamils.
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Affiliation(s)
- Anjana Sudhesan
- Scholar, Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research , Puducherry, India
| | - Medha Rajappa
- Associate Professor, Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research , Puducherry, India
| | - Laxmisha Chandrashekar
- Associate Professor, Department of Dermatology, Jawaharlal Institute of Postgraduate Medical Education and Research , Puducherry, India
| | | | - Devinder Mohan Thappa
- Professor and Head, Department of Dermatology, Jawaharlal Institute of Postgraduate Medical Education and Research , Puducherry, India
| | - Santhosh Satheesh
- Additional Professor and Head, Department of Cardiology, Jawaharlal Institute of Postgraduate Medical Education and Research , Puducherry, India
| | - Adithan Chandrasekaran
- Senior Professor and Head, Department of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research , Puducherry, India
| | - Panneer Devaraju
- Assistant Professor, Department of Genetic Engineering, SRM University , Chennai, Tamilnadu, India
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Schulz S, Lüdike H, Lierath M, Schlitt A, Werdan K, Hofmann B, Gläser C, Schaller HG, Reichert S. C-reactive protein levels and genetic variants of CRP as prognostic markers for combined cardiovascular endpoint (cardiovascular death, death from stroke, myocardial infarction, and stroke/TIA). Cytokine 2016; 88:71-76. [PMID: 27580453 DOI: 10.1016/j.cyto.2016.08.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 08/16/2016] [Accepted: 08/22/2016] [Indexed: 01/21/2023]
Abstract
BACKGROUND The aim of this analysis was to evaluate the importance of C-reactive protein levels and genetic variants of CRP as prognostic markers for further cardiovascular (CV) events (3-year follow-up) in a cohort of in-patients with cardiovascular disease (CVD) patients. METHODS AND RESULTS Patients with angiographic proven CVD (n=939) were prospectively included. The three-year CV outcome of the patients was evaluated considering the predefined, combined endpoint (CV death, death from stroke, myocardial infarction, and stroke/TIA). Polymorphisms rs1800947, rs1417938, rs1130864, rs3093077 were analysed. In Kaplan-Meier survival curve and Cox regression increased CRP levels of ⩾5mg/l (log-rank test: p=0.001, Cox regression: hazard ratio=1.77, 95% CI: 1.2-2.7) and the GG genotype of rs1800947 (log-rank test: p=0.01, Cox regression: hazard ratio=1.99, 95% CI: 1.1-3.6) were associated with the incidence of the combined endpoint. CONCLUSIONS Both a CRP level ⩾5mg/l and SNP rs1800947 of the CRP gene were independent risk factors for further adverse CV events among patients with CVD within three years follow-up.
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Affiliation(s)
- Susanne Schulz
- Department of Operative Dentistry and Periodontology, Martin-Luther University Halle-Wittenberg, Germany.
| | - Henriette Lüdike
- Department of Operative Dentistry and Periodontology, Martin-Luther University Halle-Wittenberg, Germany
| | - Madlen Lierath
- Department of Operative Dentistry and Periodontology, Martin-Luther University Halle-Wittenberg, Germany
| | - Axel Schlitt
- Department of Medicine III, Heart Centre of the University Clinics Halle (Saale), Martin-Luther University Halle-Wittenberg, Germany; Department of Cardiology, Paracelsus-Harz-Clinic Bad Suderode, Germany
| | - Karl Werdan
- Department of Medicine III, Heart Centre of the University Clinics Halle (Saale), Martin-Luther University Halle-Wittenberg, Germany
| | - Britt Hofmann
- Department of Cardiothoracic Surgery, Heart Centre of the University Clinics Halle (Saale), Martin-Luther University Halle-Wittenberg, Germany
| | - Christiane Gläser
- Institute of Human Genetics and Medical Biology, Martin-Luther University Halle-Wittenberg, Germany
| | - Hans-Günter Schaller
- Department of Operative Dentistry and Periodontology, Martin-Luther University Halle-Wittenberg, Germany
| | - Stefan Reichert
- Department of Operative Dentistry and Periodontology, Martin-Luther University Halle-Wittenberg, Germany
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Liu ZY, Wang ZD, Li LZ, Chu XF, Zhu YS, Shi JM, Xie XJ, Jin L, Wang Y, Wang XF. Association of CRP gene polymorphisms with CRP levels, frailty and co-morbidity in an elderly Chinese population: results from RuLAS. Age Ageing 2016; 45:360-5. [PMID: 27016573 DOI: 10.1093/ageing/afw041] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Accepted: 01/27/2016] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES to examine the associations of two common CRP gene polymorphisms with CRP levels, frailty and co-morbidity in an elderly Chinese population. DESIGN a population-based cohort study. SETTING AND PARTICIPANTS we obtained data on 1,723 elderly participants aged 70-84 from the ageing arm of the Rugao Longevity and Ageing study (RuLAS), a population-based observational cohort study conducted in Rugao, Jiangsu province, China. MEASUREMENTS the genotyping of two common CRP gene polymorphisms (rs1205 and rs3093059) was performed. Items concerning the frailty index and co-morbidity were collected. RESULTS the mean age of the study population was 75.3 ± 3.9 years, and 53.5% (n = 922) were women. The minor allele frequencies of rs1205 and rs3093059 were 42.4% (C allele) and 16.9% (C allele), respectively. The polymorphisms rs1205 and rs3093059 were significantly associated with CRP levels (β = 0.113 and 0.222, all P < 0.001). Non-significant association between rs1205 and rs3093059 and frailty, as well as between rs3093059 and co-morbidity was observed. However, SNP rs1205 CC genotype had an increased odds of co-morbidity compared with the TT genotype (odds ratio (OR):1.53; 95% confidence interval (CI): 1.16-2.02). Each additional copy of the C allele of SNP rs1205 was associated with 1.23 times (95% CI: 1.07-1.41) odds of co-morbidity. The significance remained after controlling for covariates such as education level, etc. CONCLUSIONS among elderly Chinese individuals, two CRP gene polymorphisms were significantly associated with CRP levels. However, none of them was associated with frailty. The preliminary findings warrant further validations.
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Affiliation(s)
- Zu-Yun Liu
- Unit of Epidemiology, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China
| | | | - Lin-Zi Li
- Unit of Epidemiology, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China
| | - Xue-Feng Chu
- Rugao People's Hospital, Rugao 226500, Jiangsu, China
| | - Yin-Sheng Zhu
- Rugao People's Hospital, Rugao 226500, Jiangsu, China
| | - Jian-Ming Shi
- Rugao People's Hospital, Rugao 226500, Jiangsu, China
| | - Xue-Juan Xie
- Rugao People's Hospital, Rugao 226500, Jiangsu, China
| | - Li Jin
- Unit of Epidemiology, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China
| | - Yong Wang
- Rugao People's Hospital, Rugao 226500, Jiangsu, China
| | - Xiao-Feng Wang
- Unit of Epidemiology, State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China
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Li CI, Li TC, Liao LN, Liu CS, Yang CW, Lin CH, Hsiao JH, Meng NH, Lin WY, Wu FY, Lin CC. Joint effect of gene-physical activity and the interactions among CRP, TNF-α, and LTA polymorphisms on serum CRP, TNF-α levels, and handgrip strength in community-dwelling elders in Taiwan - TCHS-E. AGE (DORDRECHT, NETHERLANDS) 2016; 38:46. [PMID: 27056089 PMCID: PMC5005924 DOI: 10.1007/s11357-016-9909-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 03/29/2016] [Indexed: 05/05/2023]
Abstract
This study assesses interactions of tumor necrosis factor α (TNF-α) gene polymorphisms with C-reactive protein (CRP) or lymphotoxin α (LTA) gene on serum CRP and TNF-α levels and handgrip strength. Eleven single nucleotide polymorphisms (SNPs), including rs2794520, rs1205, rs1130864, rs1800947, and rs3093059 in CRP; rs1799964, rs1800629, and rs3093662 in TNF-α; and rs2239704, rs909253, and rs1041981 in LTA, were genotyped in 472 unrelated elders (mean age 73.8 years). Among elders with TNF-α rs1799964 AA genotype, adjusted mean difference for handgrip strength decreased by -2.60 (-4.82, -0.38) and -2.51 kg (-4.75, -0.28) for LTA rs909253 and rs1041981 in women and by -2.39 kg (-3.98, -0.81) for CRP rs3093059 in men. Among elders with TNF-α rs1799964 AA genotype, adjusted mean ratios for hs-CRP levels increased by 2.32 (1.38, 3.90) and 2.27 (1.35, 3.84) for both CRP rs909253 and rs1041981 in women. The A-A-C LTA haplotype was associated with TNF-α levels that were 1.55 times higher than those of the C-G-A haplotype (P = 0.005). The joint effects of SNPs (the rs1800947 or rs3093059 of CRP, rs1799964 or rs1800629 of TNF-α, and rs909253 or rs1041981 of LTA) and physical inactivity appeared to have greater magnitude of decreased handgrip strength than main effects of these SNPs and physical inactivity. Our data showed that significant interactions of TNF-αrs1799964 and LTA rs909253 were observed. Moreover, joint effects of these CRP, TNF-α, and LTA risk alleles with physical inactivity in elders were observed, suggesting that physical activity may modulate effects of genotypes on handgrip strength.
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Affiliation(s)
- Chia-Ing Li
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
| | - Tsai-Chung Li
- Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
- Department of Healthcare Administration, College of Medical and Health Sciences, Asia University, Taichung, Taiwan
| | - Li-Na Liao
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
| | - Chiu-Shong Liu
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Chuan-Wei Yang
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
- Ph.D. Program for Aging, College of Medicine, China Medical University, Taichung, Taiwan
| | - Chih-Hsueh Lin
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Jen-Hao Hsiao
- Bioinformatics and Biostatistics Core, Center of Genomic Medicine, National Taiwan University, Taipei, Taiwan
| | - Nai-Hsin Meng
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
- Department of Physical Medicine and Rehabilitation, China Medical University Hospital, Taichung, Taiwan
| | - Wen-Yuan Lin
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Fang-Yang Wu
- Department of Public Health, College of Public Health, China Medical University, Taichung, Taiwan.
| | - Cheng-Chieh Lin
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan.
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan.
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Maternal mid-pregnancy C-reactive protein and risk of autism spectrum disorders: the early markers for autism study. Transl Psychiatry 2016; 6:e783. [PMID: 27093065 PMCID: PMC4872404 DOI: 10.1038/tp.2016.46] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 01/28/2016] [Accepted: 01/31/2016] [Indexed: 12/31/2022] Open
Abstract
Maternal pregnancy levels of the inflammatory marker C-reactive protein (CRP) has been previously associated with autism spectrum disorder (ASD) in the offspring. We conducted a population-based nested case-control study with 500 children with ASD, 235 with developmental delay (DD) and 580 general population (GP) controls to further investigate whether elevated CRP during pregnancy increases the risk of ASD. Maternal CRP concentration was measured in archived serum collected during 15-19 weeks of pregnancy and genome-wide single-nucleotide polymorphism (SNP) data were generated. The levels of CRP were compared between ASD vs GP and DD vs GP. The genetic associations with CRP were assessed via linear regression. Maternal CRP levels in mid-pregnancy were lower in mothers of ASD compared with controls. The maternal CRP levels in the upper third and fourth quartiles were associated with a 45 and 44% decreased risk of ASD, respectively. Two SNPs at the CRP locus showed strong association with CRP levels but they were not associated with ASD. No difference was found between maternal CRP levels of DD and controls. The reasons for the lower levels of CRP in mothers of ASD are not known with certainty but may be related to alterations in the immune response to infectious agents. The biological mechanisms underlying this association remain to be clarified.
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Kotzé SR, Pedersen OB, Petersen MS, Sørensen E, Thørner LW, Sørensen CJ, Rigas AS, Hjalgrim H, Rostgaard K, Ullum H, Erikstrup C. Low-grade inflammation is associated with lower haemoglobin levels in healthy individuals: results from the Danish blood donor study. Vox Sang 2016; 111:144-50. [PMID: 26950401 DOI: 10.1111/vox.12396] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 01/12/2016] [Accepted: 02/02/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVES Chronic inflammation can lead to anaemia of chronic disease due to the sequestration of iron caused by inflammatory cytokines and the protein hepcidin. However, the effect of low-grade inflammation (LGI) on haemoglobin among healthy individuals is not known. This study examines the effect of LGI on haemoglobin among Danish blood donors. MATERIALS AND METHODS We performed multivariable linear regression to assess the effect of LGI (i.e. high-sensitivity C-reactive protein above 3 mg/l but below 10 mg/l) on haemoglobin in 17 322 Danish blood donors. We also performed multivariable logistic regression to evaluate the effect of LGI on the risk of having low haemoglobin (below the 10th percentile among men and women, respectively). We adjusted for donation activity, age, sex, low ferritin, oral contraceptives and menopause. All analyses were stratified by current smoking status. RESULTS LGI was associated with lower haemoglobin (0·08 mm lower [0·12 g/dl], 95% confidence interval (CI): -0·11-0·05) and increased risk of low haemoglobin (OR = 1·22, 95% CI: 1·05-1·43) in non-smokers. Conversely, LGI was associated with higher haemoglobin in smokers (0·12 mm [0·19 g/dl], 95% CI: 0·06-0·18). CONCLUSION In this first study of LGI and haemoglobin in healthy individuals, there was a negative association between LGI and haemoglobin in non-smokers. The association was positive in smokers, probably because smoking leads to both increased inflammation and increased haemoglobin through CO exposure.
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Affiliation(s)
- S R Kotzé
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - O B Pedersen
- Department of Clinical Immunology, Naestved Hospital, Naestved, Denmark
| | - M S Petersen
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - E Sørensen
- Department of Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark
| | - L W Thørner
- Department of Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark
| | - C J Sørensen
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - A S Rigas
- Department of Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark
| | - H Hjalgrim
- Department of Epidemiological Research, Statens Serum Institut, Copenhagen, Denmark
| | - K Rostgaard
- Department of Epidemiological Research, Statens Serum Institut, Copenhagen, Denmark
| | - H Ullum
- Department of Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark
| | - C Erikstrup
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
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Geng P, Sa R, Li J, Li H, Liu C, Liao Y, Xiang L, Wang N, Ou J, Xie G, Liang H. Genetic polymorphisms in C-reactive protein increase cancer susceptibility. Sci Rep 2016; 6:17161. [PMID: 26912098 PMCID: PMC4766465 DOI: 10.1038/srep17161] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 06/04/2015] [Indexed: 12/11/2022] Open
Abstract
Elevated levels of C-reactive protein (CRP) partially induced by polymorphisms in the CRP gene have been associated with human cancer. The purpose of this study was to test the hypothesis that CRP gene polymorphisms (+942G>C, 1846C>T) modify inherited susceptibility to cancer. We systematically identified the publications addressing the association of CRP gene polymorphisms with cancer susceptibility. Studies that fulfilled all inclusion criteria were considered eligible in this meta-analysis. We analyzed a total of 8 case-control studies. Individuals with the CC genotype were found to have an almost 4 fold higher risk of cancer than those with the GG or GC and GG genotypes. A significant association was also indicated in subgroup of colorectal cancer. Meta-analysis of 1846C>T polymorphism showed increased cancer risk in relation to the 1846 TT genotype (TT vs. CC: OR = 1.15, 95% CI = 1.01–1.31; TT vs. CT + CC; OR = 1.17, 95% CI = 1.03–1.32). Similar results were suggested in Caucasian populations and colorectal cancer. These data suggest that both +942G>C and 1846C>T polymorphisms in the CRP gene may influence cancer susceptibility.
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Affiliation(s)
- Peiliang Geng
- Department of Oncology and Southwest Cancer Center, Southwest Hospital Third Military Medical University, 29 Gaotanyan Main Street, Chongqing 400038, China
| | - Rina Sa
- Department of Oncology and Southwest Cancer Center, Southwest Hospital Third Military Medical University, 29 Gaotanyan Main Street, Chongqing 400038, China
| | - Jianjun Li
- Department of Oncology and Southwest Cancer Center, Southwest Hospital Third Military Medical University, 29 Gaotanyan Main Street, Chongqing 400038, China
| | - Hongtao Li
- Department of Oncology and Southwest Cancer Center, Southwest Hospital Third Military Medical University, 29 Gaotanyan Main Street, Chongqing 400038, China
| | - Chen Liu
- Department of Oncology and Southwest Cancer Center, Southwest Hospital Third Military Medical University, 29 Gaotanyan Main Street, Chongqing 400038, China
| | - Yunmei Liao
- Department of Oncology and Southwest Cancer Center, Southwest Hospital Third Military Medical University, 29 Gaotanyan Main Street, Chongqing 400038, China
| | - Lisha Xiang
- Department of Oncology and Southwest Cancer Center, Southwest Hospital Third Military Medical University, 29 Gaotanyan Main Street, Chongqing 400038, China
| | - Ning Wang
- Department of Oncology and Southwest Cancer Center, Southwest Hospital Third Military Medical University, 29 Gaotanyan Main Street, Chongqing 400038, China
| | - Juanjuan Ou
- Department of Oncology and Southwest Cancer Center, Southwest Hospital Third Military Medical University, 29 Gaotanyan Main Street, Chongqing 400038, China
| | - Ganfeng Xie
- Department of Oncology and Southwest Cancer Center, Southwest Hospital Third Military Medical University, 29 Gaotanyan Main Street, Chongqing 400038, China
| | - Houjie Liang
- Department of Oncology and Southwest Cancer Center, Southwest Hospital Third Military Medical University, 29 Gaotanyan Main Street, Chongqing 400038, China
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Wium-Andersen MK, Ørsted DD, Nordestgaard BG. Elevated C-reactive protein and late-onset bipolar disorder in 78 809 individuals from the general population. Br J Psychiatry 2016; 208:138-45. [PMID: 26250741 DOI: 10.1192/bjp.bp.114.150870] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 12/02/2014] [Indexed: 12/30/2022]
Abstract
BACKGROUND No prospective studies have examined the role of C-reactive protein (CRP) in late-onset bipolar disorder. AIMS We tested the hypothesis that elevated levels of CRP are associated cross-sectionally and prospectively with late-onset bipolar disorder, and that such an association possibly is causal. METHOD We performed cross-sectional and prospective analyses with a median follow-up time of 5.9 years (interquartile range: 4.4-7.6) in 78 809 individuals from the general population, and used genetic variants influencing CRP levels to perform a Mendelian randomisation study. RESULTS Elevated levels of CRP were associated both cross-sectionally and prospectively with late-onset bipolar disorder. When CRP was on a continuous scale, a doubling in CRP yielded an observational odds ratio for late-onset bipolar disorder of 1.28 (1.08-1.52) with a corresponding causal odds ratio of 4.66 (0.89-24.3). CONCLUSION Elevated CRP is associated with increased risk of late-onset bipolar disorder in the general population which was supported by the genetic analysis.
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Affiliation(s)
- Marie Kim Wium-Andersen
- Marie Kim Wium-Andersen, MD, Department of Clinical Biochemistry, The Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital and Faculty of Health and Medical Sciences, University of Copenhagen, Denmark; David Dynnes Ørsted, MD, PhD, Department of Clinical Biochemistry, The Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital and Faculty of Health and Medical Sciences, University of Copenhagen, Denmark; Børge Grønne Nordestgaard, MD, DMSc, Department of Clinical Biochemistry, The Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital, The Copenhagen City Heart Study, Frederiksberg Hospital, Copenhagen University Hospital and Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - David Dynnes Ørsted
- Marie Kim Wium-Andersen, MD, Department of Clinical Biochemistry, The Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital and Faculty of Health and Medical Sciences, University of Copenhagen, Denmark; David Dynnes Ørsted, MD, PhD, Department of Clinical Biochemistry, The Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital and Faculty of Health and Medical Sciences, University of Copenhagen, Denmark; Børge Grønne Nordestgaard, MD, DMSc, Department of Clinical Biochemistry, The Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital, The Copenhagen City Heart Study, Frederiksberg Hospital, Copenhagen University Hospital and Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Børge Grønne Nordestgaard
- Marie Kim Wium-Andersen, MD, Department of Clinical Biochemistry, The Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital and Faculty of Health and Medical Sciences, University of Copenhagen, Denmark; David Dynnes Ørsted, MD, PhD, Department of Clinical Biochemistry, The Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital and Faculty of Health and Medical Sciences, University of Copenhagen, Denmark; Børge Grønne Nordestgaard, MD, DMSc, Department of Clinical Biochemistry, The Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital, The Copenhagen City Heart Study, Frederiksberg Hospital, Copenhagen University Hospital and Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
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Hernández-Díaz Y, Tovilla-Zárate CA, Juárez-Rojop I, López-Narváez ML, Álvarez-Cámara JF, González-Castro TB. Association between CRP and TNF-α genes Variants and Cardiovascular Heart Disease in a Mexican Population: Protocol for a Case-Control Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:ijerph13010103. [PMID: 26751459 PMCID: PMC4730494 DOI: 10.3390/ijerph13010103] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 12/15/2015] [Accepted: 12/28/2015] [Indexed: 12/31/2022]
Abstract
BACKGROUND The C-reactive protein (CRP) and the tumor necrosis factor-alpha (TNF-α) are considered markers of inflammation and have been shown to predict the risk of incident cardiovascular events. However, few studies have undertaken a comprehensive examination of SNPs (single nucleotide polymorphisms) of the CRP and TNF-α genes; due to this, we will present a protocol study to evaluate the role of the CRP and TNF-α genes in Mexican individuals. METHODS/DESIGN we will perform a case-control study to explore the CRP and TNF-α genotype distribution as well as the serum influence of rs1800947, rs1130864, rs2794521 and rs1205 (polymorphisms of the CRP gene) and rs361525, rs1800629, rs1799724, rs1800630, rs1799964 (of the TNF-α gene) in Mexican individuals who present coronary artery disease. ETHICS AND DISSEMINATION a written informed consent will be obtained from all the participating subjects. An article detailing the results of the study will be submitted for publication in an international peer-reviewed journal, in accordance with STROBE criteria.
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Affiliation(s)
- Yazmín Hernández-Díaz
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Tabasco 86205, México.
| | - Carlos Alfonso Tovilla-Zárate
- División Multidisciplinaria de Comalcalco, Universidad Juárez Autónoma de Tabasco, Comalcalco, Tabasco 86650, México.
| | - Isela Juárez-Rojop
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco Villahermosa, Tabasco 86150, México.
| | | | - José Francisco Álvarez-Cámara
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco Villahermosa, Tabasco 86150, México.
| | - Thelma Beatriz González-Castro
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Tabasco 86205, México.
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Akbal A, Reşorlu H, Gökmen F, Savaş Y, Zateri Ç, Sargin B, Bozkurt E, Sılan F, Özdemir Ö. The relationship between C-reactive protein rs3091244 polymorphism and ankylosing spondylitis. Int J Rheum Dis 2015; 19:43-8. [PMID: 26480896 DOI: 10.1111/1756-185x.12619] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
AIMS Previous studies have shown that C-reactive protein (CRP) gene polymorphism can be related to inflammatory changes. The present study aimed to examine the association between CRP gene polymorphism and clinical and laboratory findings in ankylosing spondylitis (AS) patients. MATERIALS AND METHODS A total of 80 patients, 40 with AS and 40 controls, were included in the study. Diagnosis of AS was made according to Assessment in AS International Working Group criteria. Bath Ankylosing Spondylitis Disease Activity Index, Bath Ankylosing Spondylitis Functional Index, Bath Ankylosing Spondylitis Metrology Index and Bath Ankylosing Spondylitis Radiology Index scores were evaluated. CRP gene C, A and T alleles were evaluated and were determined using the analysis of melting curves after real time polymerase chain reaction. The odds ratios were calculated for all alleles and haploids of the CRP gene. We investigated the relationship between the CRP polymorphism and clinical and laboratory findings. RESULTS A, C, T allele frequencies in the control group were 15%, 57.5% and 27.5%. The allele frequencies in the AS group were 38%, 68.8% and 26.2%. While C and T allele frequencies were shown to be similar in the two groups, A allele frequency was higher in the AS group compared to the control group. The CC wild allele was 42.5% in the control group and 47.5% in the AS group (P = 1.0). Odds ratios for the C allele were 1.6, for the CC haploid 1.2 and for the CT haploid 3.7. Chest expansion and finger-to-ground distance was better in the CRP gene polymorphism group compared to the no polymorphism group. CONCLUSION The presence of the CRP gene CC wild haploid and C allele in patients may indicate an increased risk for AS.
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Affiliation(s)
- Ayla Akbal
- Department of Physical Medicine and Rehabilitation, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Hatice Reşorlu
- Department of Physical Medicine and Rehabilitation, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Ferhat Gökmen
- Department of Physical Medicine and Rehabilitation, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Yılmaz Savaş
- Department of Physical Medicine and Rehabilitation, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Çoşkun Zateri
- Department of Physical Medicine and Rehabilitation, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Betül Sargin
- Department of Physical Medicine and Rehabilitation, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Emre Bozkurt
- Department of Physical Medicine and Rehabilitation, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Fatma Sılan
- Department of Medical Genetics, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Öztürk Özdemir
- Department of Medical Genetics, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
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Nikpour P, Emadi-Baygi M, Fatemi SG, Kelishadi R. Absence of association between -286C>A>T polymorphism in the CRP gene and metabolic syndrome in Iranian pediatric. Adv Biomed Res 2015; 4:210. [PMID: 26605239 PMCID: PMC4627186 DOI: 10.4103/2277-9175.166147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 05/06/2015] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND As a common pathophysiological condition worldwide, metabolic syndrome (MetS) is a clustering of multiple risk factors implicating in the development of many chronic disorders. Of note, obesity-induced chronic, low-grade inflammation is a major cause of insulin resistance and MetS. In the present study, we evaluated the association of rs3091244 variant of the C-reactive protein (CRP) gene, a well-recognized systemic inflammatory marker, with MetS in Iranian children and adolescents. MATERIALS AND METHODS Genotyping was performed by mismatched polymerase chain reaction-restriction fragment length polymorphism in 100 MetS and 100 normal individuals aged 9-19 years recruited in the central part of Iran in 2011. A t-test or one-way ANOVA with post-hoc multiple comparisons were used to analyze the differences between groups. Statistical significance was defined as P ≤ 0.05. Logistic regression used to evaluate the association between alleles of the CRP rs3091244 and increased MetS risk. RESULTS There were no differences in the genotype frequencies or allele distribution for -286C>A>T CRP polymorphism between MetS and control groups. Logistic regression showed that only the T allele of the CRP rs3091244 and not any of the genotypes confers a borderline significant (P = 0.059) increased MetS risk compared to A allele with the odds ratio of 1.70 (0.98-2.96). CONCLUSIONS This study suggests that in Iranian children and adolescents, -286C>A>T CRP polymorphism is not associated with the increased risk for MetS.
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Affiliation(s)
- Parvaneh Nikpour
- Applied Physiology Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan, Iran ; Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan, Iran ; Department of Genetics and Molecular Biology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Modjtaba Emadi-Baygi
- Department of Genetics, Faculty of Basic Sciences, Shahrekord University, Shahrekord, Iran ; Research Institute of Biotechnology, Shahrekord University, Shahrekord, Iran
| | | | - Roya Kelishadi
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan, Iran
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Dongway AC, Faggad AS, Zaki HY, Abdalla BE. C-reactive protein is associated with low-density lipoprotein cholesterol and obesity in type 2 diabetic Sudanese. Diabetes Metab Syndr Obes 2015; 8:427-35. [PMID: 26379442 PMCID: PMC4567170 DOI: 10.2147/dmso.s85451] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Type 2 diabetes is emerging in Sudan and is associated with obesity. Deregulated lipid metabolism and inflammatory states are suggested risk factors for cardiovascular disease, which is a leading cause of diabetic death. This study aimed to investigate C-reactive protein (CRP) levels and the lipid profile in type 2 diabetic adult Sudanese compared with nondiabetics, and to test their associations with other characteristics. METHODS A cross-sectional study including 70 diabetics and 40 nondiabetics was conducted. Anthropometric measurements were assessed, and demographic and medical data were obtained using a structured questionnaire. Blood specimens were collected and biochemical parameters were analyzed applying standard methods. RESULTS CRP and triglycerides were significantly higher in the diabetic group (P<0.001 and P=0.01, respectively). Differences in total cholesterol, low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C) were not statistically significant between the diabetic and nondiabetic groups. In the diabetic group, correlation analysis revealed that the CRP level had a significant positive correlation with LDL-C (r=0.255, P=0.034) and body mass index (r=0.29, P=0.016). Body mass index showed a significant positive correlation with triglycerides (r=0.386, P=0.001). Within the lipid parameters, a number of significant correlations were observed. Elevated levels of CRP, LDL-C, and triglycerides were markedly more prevalent in the diabetic group of patients. Diabetics showed significantly higher CRP levels compared with nondiabetics (odds ratio 5.56, P=0.001). CONCLUSION The high prevalence of obesity among diabetics, together with elevated levels of triglycerides and CRP, suggest coexistence of dyslipidemia and inflammation in diabetes. Our findings emphasize that diabetics were 5.6 times more likely to have high CRP levels than nondiabetics; as CRP is a predictor of cardiovascular disease risk, it can be recognized that diabetics are at more risk of cardiovascular disease than nondiabetics. Considering evaluation of CRP together with the lipid profile in prediction of cardiovascular disease risk in Sudanese diabetics should be further tested in large-scale studies.
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Affiliation(s)
- Angelo C Dongway
- Department of Biochemistry, Faculty of Medicine, Upper Nile University, Malakal, South Sudan
| | - Areeg S Faggad
- Department of Biochemistry and Nutrition, Faculty of Medicine, University of Gezira
- Department of Molecular Biology, National Cancer Institute-University of Gezira, Wad Medani, Sudan
- Correspondence: Areeg S Faggad, PO Box 20, Department of Molecular Biology, National cancer institute-University of Gezira, Wad Medani, Sudan, Email
| | - Hani Y Zaki
- Department of Biochemistry and Nutrition, Faculty of Medicine, University of Gezira
| | - Badreldin E Abdalla
- Department of Biochemistry and Nutrition, Faculty of Medicine, University of Gezira
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
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C-reactive protein gene variants: independent association with late-life depression and circulating protein levels. Transl Psychiatry 2015; 5:e499. [PMID: 25603415 PMCID: PMC4312833 DOI: 10.1038/tp.2014.145] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 10/28/2014] [Accepted: 12/06/2014] [Indexed: 12/25/2022] Open
Abstract
C-reactive protein (CRP) is a heritable biomarker of systemic inflammation that is commonly elevated in depressed patients. Variants in the CRP gene that influence protein levels could thus be associated with depression but this has seldom been examined, especially in the elderly. Depression was assessed in 990 people aged at least 65 years as part of the ESPRIT study. A clinical level of depression (DEP) was defined as having a score of ⩾16 on The Center for Epidemiologic Studies Depression scale or a diagnosis of current major depression based on the Mini-International Neuropsychiatric Interview and according to Diagnostic and Statistical Manual of Mental Disorders-IV criteria. Five single-nucleotide polymorphisms spanning the CRP gene were genotyped, and circulating levels of high-sensitivity CRP were determined. Multivariable analyses adjusted for socio-demographic characteristics, smoking, ischemic pathologies, cognitive impairment and inflammation-related chronic pathologies. The minor alleles of rs1130864 and rs1417938 were associated with a decreased risk of depression in women at Bonferroni-corrected significance levels (P=0.002). CRP gene variants were associated with serum levels in a gender-specific manner, but only rs1205 was found to be nominally associated with both an increased risk of DEP and lower circulating CRP levels in women. Variants of the CRP gene thus influence circulating CRP levels and appear as independent susceptibility factors for late-life depression.
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Arya N, Kharjul MD, Shishoo CJ, Thakare VN, Jain KS. Some molecular targets for antihyperlipidemic drug research. Eur J Med Chem 2014; 85:535-68. [DOI: 10.1016/j.ejmech.2014.08.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 08/01/2014] [Accepted: 08/05/2014] [Indexed: 12/17/2022]
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A Polymorphism in Hepatocyte Nuclear Factor 1 Alpha, rs7310409, Is Associated with Left Main Coronary Artery Disease. Biochem Res Int 2014; 2014:924105. [PMID: 25202455 PMCID: PMC4151485 DOI: 10.1155/2014/924105] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 07/14/2014] [Accepted: 07/21/2014] [Indexed: 11/21/2022] Open
Abstract
Coronary artery disease is the leading cause of mortality and morbidity in the world. Left main coronary artery disease (LMCAD) is a particularly severe phenotypic form of CAD and has a genetic basis. We hypothesized that some inflammation- and hyperhomocysteinemia-related gene polymorphisms may contribute to LMCAD susceptibility in a Chinese population. We studied the association between polymorphisms in the genes hepatocyte nuclear factor 1 alpha (HNF1A; rs7310409, G/A), C-reactive protein (rs1800947 and rs3093059 T/C), methylenetetrahydrofolate reductase (rs1801133, C/T), and methylenetetrahydrofolate dehydrogenase (rs1076991, A/G) in 402 LMCAD and 804 more peripheral CAD patients in a Chinese population. Genotyping was performed using the matrix-assisted laser desorption/ionization time-of-flight mass spectrometry method. When the HNF1A rs7310409 GG homozygote genotype was used as the reference group, both the individual, GA and AA, and combined GA/AA genotypes were associated with an increased risk of LMCAD. This single nucleotide polymorphism (rs7310409) is strongly associated with plasma CRP levels. In conclusion, the present study provides evidence that the HNF1A rs7310409 G/A functional polymorphism may contribute to the risk of LMCAD.
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Wium-Andersen MK, Orsted DD, Nordestgaard BG. Elevated C-reactive protein, depression, somatic diseases, and all-cause mortality: a mendelian randomization study. Biol Psychiatry 2014; 76:249-57. [PMID: 24246360 DOI: 10.1016/j.biopsych.2013.10.009] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Revised: 10/08/2013] [Accepted: 10/08/2013] [Indexed: 12/21/2022]
Abstract
BACKGROUND Elevated levels of plasma C-reactive protein (CRP) have been associated with many diseases including depression, but it remains unclear whether this association is causal. We tested the hypothesis that CRP is causally associated with depression, and compared these results to those for cancer, ischemic heart disease, chronic obstructive pulmonary disease, and all-cause mortality. METHODS We performed prospective and instrumental variable analyses using plasma CRP levels and four CRP genotypes on 78,809 randomly selected 20- to 100-year-old men and women from the Danish general population. End points included hospitalization or death with depression and somatic diseases, prescription antidepressant medication use, and all-cause mortality. RESULTS A doubling in plasma CRP yielded an observed odds ratio (OR) of 1.28 (95% confidence interval [CI]: 1.23-1.33) for hospitalization or death with depression, whereas for genetically elevated CRP, the causal OR was .79 (95% CI: .51-1.22; observed vs. causal estimate, p = .03). For prescription antidepressant medication use, corresponding ORs were 1.12 (1.11-1.15) and .98 (.83-1.15; p = .08). These results were similar to those for risk of cancer (p = .002), ischemic heart disease (p = 4 × 10(-99)), chronic obstructive pulmonary disease (p = 6 × 10(-86)), and all-cause mortality (p = .001) examined in the same individuals. CONCLUSIONS Elevated CRP was associated with increased risk of depression in individuals in the general population, but genetically elevated CRP was not. This indicates that CRP per se is not a causal risk factor for depression.
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Affiliation(s)
- Marie Kim Wium-Andersen
- Department of Clinical Biochemistry, Herlev Hospital, Copenhagen University Hospital, Denmark; The Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - David Dynnes Orsted
- Department of Clinical Biochemistry, Herlev Hospital, Copenhagen University Hospital, Denmark; The Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Børge Grønne Nordestgaard
- Department of Clinical Biochemistry, Herlev Hospital, Copenhagen University Hospital, Denmark; The Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital, Denmark; The Copenhagen City Heart Study, Frederiksberg Hospital, Copenhagen University Hospital, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Denmark..
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Bansal T, Pandey A, D D, Asthana AK. C-Reactive Protein (CRP) and its Association with Periodontal Disease: A Brief Review. J Clin Diagn Res 2014; 8:ZE21-4. [PMID: 25177663 DOI: 10.7860/jcdr/2014/8355.4646] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Accepted: 06/04/2014] [Indexed: 11/24/2022]
Abstract
Periodontal disease is a chronic infection of the gums characterised by a loss of attachment between the tooth and bone, and bone loss. C-reactive protein (CRP) elevation is a part of the acute phase response to acute and chronic inflammation. Many epidemiological studies have shown that serum CRP levels were elevated in patients with chronic periodontitis. CRP levels increase to hundreds of μg/ml within hours following infection. It out-performs erythrocyte sedimentation rate (ESR) in terms of responsiveness and specificity for inflammation. While CRP elevation is suggestive of inflammation or infection in the appropriate clinical context, it can also occur with obesity and renal dysfunction. Conversely, a lack of CRP elevation in inflammation may be seen with hepatic failure, as well as during flares of conditions such as systemic lupus erythematosus.
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Affiliation(s)
- Tushika Bansal
- Senior Lecturer, Department of Periodontics, Subharti Dental College, Swami Vivekanand Subharti University , Meerut, U.P., India
| | - Anita Pandey
- Professor, Department of Microbiology, Subharti Medical College, Swami Vivekanand Subharti University , Meerut, U.P., India
| | - Deepa D
- Professor, Department of Periodontics, Subharti Dental College, Swami Vivekanand Subharti University , Meerut, U.P., India
| | - Ashish K Asthana
- Assistant Professor, Department of Microbiology, Subharti Medical College, Swami Vivekanand Subharti University , Meerut, U.P., India
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Inhibiting C-reactive protein for the treatment of cardiovascular disease: promising evidence from rodent models. Mediators Inflamm 2014; 2014:353614. [PMID: 24803739 PMCID: PMC3996300 DOI: 10.1155/2014/353614] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 02/28/2014] [Indexed: 11/17/2022] Open
Abstract
Raised blood C-reactive protein (CRP) level is a predictor of cardiovascular events, but whether blood CRP is causal in the disease process is unknown. The latter would best be defined by pharmacological inhibition of the protein in the context of a randomized case-control study. However, no CRP specific drug is currently available so such a prospective study cannot be performed. Blood CRP is synthesized primarily in the liver and the liver is an organ where antisense oligonucleotide (ASO) drugs accumulate. Taking advantage of this we evaluated the efficacy of CRP specific ASOs in rodents with experimentally induced cardiovascular damage. Treating rats for 4 weeks with a rat CRP-specific ASO achieved >60% reduction of blood CRP. Notably, this effect was associated with improved heart function and pathology following myocardial infarction (induced by ligation of the left anterior descending artery). Likewise in human CRP transgenic mice treated for 2 weeks with a human CRP-specific ASO, blood human CRP was reduced by >70% and carotid artery patency was improved (2 weeks after surgical ligation). CRP specific ASOs might pave the way towards a placebo-controlled trial that could clarify the role of CRP in cardiovascular disease.
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80
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The prognostic values of leukocyte Rho kinase activity in acute ischemic stroke. BIOMED RESEARCH INTERNATIONAL 2014; 2014:214587. [PMID: 24716192 PMCID: PMC3955656 DOI: 10.1155/2014/214587] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 12/24/2013] [Accepted: 01/03/2014] [Indexed: 01/10/2023]
Abstract
Objective. It has been reported that leukocyte ROCK activity is elevated in patients after ischemic stroke, but it is unclear whether leukocyte ROCK activity is associated with clinical outcomes following acute stroke events. The objective of this study is to investigate if leukocyte ROCK activity can predict the outcomes in patients with acute ischemic stroke. Materials and Methods. We enrolled 110 patients of acute ischemic stroke and measured the leukocyte ROCK activity and plasma level of inflammatory cytokines to correlate the clinical outcomes of these patients. Results. The leukocyte ROCK activity at 48 hours after admission in acute ischemic stroke patients was higher as compared to a risk-matched population. The leukocyte ROCK activity significantly correlated with National Institute of Health Stroke Scale (NIHSS) difference between admission and 90 days after stroke event. Kaplan-Meier survival estimates showed lower stroke-free survival during follow-up period in patients with high leukocyte ROCK activity or plasma hsCRP level. Leukocyte ROCK activity independently predicted the recurrent stroke in patients with atherosclerotic stroke. Conclusions. This study shows elevated leukocyte ROCK activity in patients with ischemic stroke as compared to risk-matched subjects and is an independent predictor for recurrent stroke.
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Sørensen CJ, Pedersen OB, Petersen MS, Sørensen E, Kotzé S, Thørner LW, Hjalgrim H, Rigas AS, Møller B, Rostgaard K, Riiskjær M, Ullum H, Erikstrup C. Combined oral contraception and obesity are strong predictors of low-grade inflammation in healthy individuals: results from the Danish Blood Donor Study (DBDS). PLoS One 2014; 9:e88196. [PMID: 24516611 PMCID: PMC3916399 DOI: 10.1371/journal.pone.0088196] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Accepted: 01/04/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND C-reactive protein (CRP) is a well-established marker of inflammation. The level of CRP is affected by several lifestyle factors. A slightly increased CRP level, also known as low-grade inflammation (LGI), is associated with increased risk of several diseases, especially cardiovascular disease. The aim of this study was to identify predictors of increased CRP levels in healthy individuals. We therefore assessed CRP in a large cohort of blood donors. METHODS We measured plasma CRP levels in 15,684 participants from the Danish Blood Donor Study. CRP was measured by a commercial assay. Furthermore, all participants completed a standard questionnaire on smoking status, alcohol consumption, physical activity, diet, and various body measurements. Female participants also reported the use of contraception, childbirth, and menopausal status. The relationship between LGI (defined here as a plasma CRP level between 3 mg/L and 10 mg/L) and predictors was explored by multivariable logistic regression analysis. Results were presented as odds ratios (OR) with 95% confidence intervals (CI). RESULTS We found LGI in a total of 1,561 (10.0%) participants. LGI was more frequent in women using combined oral contraception (OC) (29.9%) than in men (6.1%) and women not using OC (7.9%). Among premenopausal women, OC was the strongest predictor of LGI (odds ratio = 8.98, p<0.001). Additionally, body mass index (BMI) and waist circumference were positively associated with LGI. CONCLUSION High BMI and abdominal obesity strongly predicted LGI among healthy individuals. However, the most striking finding was the high prevalence of LGI among premenopausal women who used combined oral contraception. Although the significance of CRP as a marker of inflammation is well known, the role of CRP in pathogenesis is still uncertain. The impact of oral contraception on CRP levels should nevertheless be considered when CRP is used in risk assessment.
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Affiliation(s)
- Cecilie J. Sørensen
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - Ole B. Pedersen
- Department of Clinical Immunology, Næstved Sygehus, Næstved, Denmark
| | - Mikkel S. Petersen
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - Erik Sørensen
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Sebastian Kotzé
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - Lise W. Thørner
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Henrik Hjalgrim
- Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
| | - Andreas S. Rigas
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Bjarne Møller
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
| | - Klaus Rostgaard
- Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
| | - Mads Riiskjær
- Department of Obstetrics and Gynaecology, Aarhus University Hospital, Aarhus, Denmark
| | - Henrik Ullum
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Christian Erikstrup
- Department of Clinical Immunology, Aarhus University Hospital, Aarhus, Denmark
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Cardona F, Andrés-Lacueva C, Tulipani S, Tinahones FJ, Queipo-Ortuño MI. Benefits of polyphenols on gut microbiota and implications in human health. J Nutr Biochem 2014; 24:1415-22. [PMID: 23849454 DOI: 10.1016/j.jnutbio.2013.05.001] [Citation(s) in RCA: 957] [Impact Index Per Article: 95.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 05/06/2013] [Accepted: 05/24/2013] [Indexed: 12/18/2022]
Abstract
The biological properties of dietary polyphenols are greatly dependent on their bioavailability that, in turn, is largely influenced by their degree of polymerization. The gut microbiota play a key role in modulating the production, bioavailability and, thus, the biological activities of phenolic metabolites, particularly after the intake of food containing high-molecular-weight polyphenols. In addition, evidence is emerging on the activity of dietary polyphenols on the modulation of the colonic microbial population composition or activity. However, although the great range of health-promoting activities of dietary polyphenols has been widely investigated, their effect on the modulation of the gut ecology and the two-way relationship "polyphenols ↔ microbiota" are still poorly understood. Only a few studies have examined the impact of dietary polyphenols on the human gut microbiota, and most were focused on single polyphenol molecules and selected bacterial populations. This review focuses on the reciprocal interactions between the gut microbiota and polyphenols, the mechanisms of action and the consequences of these interactions on human health.
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Affiliation(s)
- Fernando Cardona
- Laboratorio de Investigaciones Biomédicas del Hospital Virgen de la Victoria (FIMABIS), Málaga, Spain.
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83
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Kaditis AG, Gozal D, Khalyfa A, Kheirandish-Gozal L, Capdevila OS, Gourgoulianis K, Alexopoulos EI, Chaidas K, Bhattacharjee R, Kim J, Rodopoulou P, Zintzaras E. Variants in C-reactive protein and IL-6 genes and susceptibility to obstructive sleep apnea in children: a candidate-gene association study in European American and Southeast European populations. Sleep Med 2013; 15:228-35. [PMID: 24380782 DOI: 10.1016/j.sleep.2013.08.795] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 08/17/2013] [Accepted: 08/29/2013] [Indexed: 12/13/2022]
Abstract
BACKGROUND Preliminary evidence indicates that variants of the C-reactive protein (CRP) and IL-6 genes might be associated with the presence of obstructive sleep apnea (OSA) in childhood. Thus a candidate-gene association study was conducted to investigate the association of four variants of the CRP gene (1444C/T, -717T/C, 1861C/T, and 1919A/T) and two variants of the IL-6 gene (-174G/C and 597G/A) with OSA in a cohort of European American and Greek children. METHODS The genetic risk effects were estimated based on the odds ratio (OR) of the allele contrast and the generalized odds ratio (ORG), which is a model-free approach. The mode of inheritance was assessed using the degree of dominance index. The impact of haplotypes was also examined. RESULTS In the American population, the allele contrast and the model-free approach produced significant ORs for the CRP 1444C/T variant (OR, 3.82 [95% confidence interval {CI}, 1.91-7.63] and ORG, 4.37 [95% CI, 1.96-9.76]), respectively, and the mode of inheritance was recessiveness of allele T. Significance was also shown for the CRP 1919A/T variant (OR, 2.45 [95% CI, 1.23-4.85] and ORG, 2.76 [95% CI, 1.26-6.03]) with the mode of inheritance being nondominance of allele T. For the IL-6-174G/C variant, there was an indication of recessiveness of allele C. Finally, the IL-6-174C/IL-6 597A haplotype was associated with OSA. In the Greek population, no association was detected for any variant or haplotype. CONCLUSIONS Genetic variation in the IL-6/CRP pathway was associated with increased risk for OSA in European American children and may account for the higher CRP levels in the context of pediatric OSA compared to Greek children.
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Affiliation(s)
- Athanasios G Kaditis
- First Department of Pediatrics, University of Athens, School of Medicine and Aghia Sophia Children's Hospital, Athens, Greece.
| | - David Gozal
- Section of Pediatric Sleep Medicine, Department of Pediatrics, Pritzker School of Medicine, The University of Chicago, Chicago, IL, United States; Division of Pediatric Sleep Medicine and Kosair Children's Hospital Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY, United States
| | - Abdelnaby Khalyfa
- Section of Pediatric Sleep Medicine, Department of Pediatrics, Pritzker School of Medicine, The University of Chicago, Chicago, IL, United States; Division of Pediatric Sleep Medicine and Kosair Children's Hospital Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY, United States
| | - Leila Kheirandish-Gozal
- Section of Pediatric Sleep Medicine, Department of Pediatrics, Pritzker School of Medicine, The University of Chicago, Chicago, IL, United States; Division of Pediatric Sleep Medicine and Kosair Children's Hospital Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY, United States
| | - Oscar Sans Capdevila
- Division of Pediatric Sleep Medicine and Kosair Children's Hospital Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY, United States
| | | | | | | | - Rakesh Bhattacharjee
- Section of Pediatric Sleep Medicine, Department of Pediatrics, Pritzker School of Medicine, The University of Chicago, Chicago, IL, United States; Division of Pediatric Sleep Medicine and Kosair Children's Hospital Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY, United States
| | - Jinkwan Kim
- Section of Pediatric Sleep Medicine, Department of Pediatrics, Pritzker School of Medicine, The University of Chicago, Chicago, IL, United States; Division of Pediatric Sleep Medicine and Kosair Children's Hospital Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY, United States
| | - Paraskevi Rodopoulou
- Department of Biomathematics, University of Thessaly School of Medicine, Larissa, Greece
| | - Elias Zintzaras
- Department of Biomathematics, University of Thessaly School of Medicine, Larissa, Greece; Center for Clinical Evidence Synthesis, The Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, United States
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84
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C-reactive protein and Hypertension. J Hum Hypertens 2013; 28:410-5. [DOI: 10.1038/jhh.2013.111] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2013] [Revised: 09/21/2013] [Accepted: 09/26/2013] [Indexed: 12/26/2022]
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85
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Sun YV, Lazarus A, Smith JA, Chuang YH, Zhao W, Turner ST, Kardia SLR. Gene-specific DNA methylation association with serum levels of C-reactive protein in African Americans. PLoS One 2013; 8:e73480. [PMID: 23977389 PMCID: PMC3747126 DOI: 10.1371/journal.pone.0073480] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 07/22/2013] [Indexed: 01/10/2023] Open
Abstract
A more thorough understanding of the differences in DNA methylation (DNAm) profiles in populations may hold promise for identifying molecular mechanisms through which genetic and environmental factors jointly contribute to human diseases. Inflammation is a key molecular mechanism underlying several chronic diseases including cardiovascular disease, and it affects DNAm profile on both global and locus-specific levels. To understand the impact of inflammation on the DNAm of the human genome, we investigated DNAm profiles of peripheral blood leukocytes from 966 African American participants in the Genetic Epidemiology Network of Arteriopathy (GENOA) study. By testing the association of DNAm sites on CpG islands of over 14,000 genes with C-reactive protein (CRP), an inflammatory biomarker of cardiovascular disease, we identified 257 DNAm sites in 240 genes significantly associated with serum levels of CRP adjusted for age, sex, body mass index and smoking status, and corrected for multiple testing. Of the significantly associated DNAm sites, 80.5% were hypomethylated with higher CRP levels. The most significant Gene Ontology terms enriched in the genes associated with the CRP levels were immune system process, immune response, defense response, response to stimulus, and response to stress, which are all linked to the functions of leukocytes. While the CRP-associated DNAm may be cell-type specific, understanding the DNAm association with CRP in peripheral blood leukocytes of multi-ethnic populations can assist in unveiling the molecular mechanism of how the process of inflammation affects the risks of developing common disease through epigenetic modifications.
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Affiliation(s)
- Yan V Sun
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America.
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Abrams ST, Zhang N, Dart C, Wang SS, Thachil J, Guan Y, Wang G, Toh CH. Human CRP defends against the toxicity of circulating histones. THE JOURNAL OF IMMUNOLOGY 2013; 191:2495-502. [PMID: 23894199 DOI: 10.4049/jimmunol.1203181] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
C-reactive protein (CRP) is an acute-phase protein that plays an important defensive role in innate immunity against bacterial infection, but it is also upregulated in many noninfectious diseases. The generic function of this highly conserved molecule in diseases that range from infection, inflammation, trauma, and malignancy is not well understood. In this article, we demonstrate that CRP defends the human body against the toxicity of histones released into the circulation after extensive cell death. In vitro, CRP significantly alleviates histone-induced endothelial cell damage, permeability increase, and platelet aggregation. In vivo, CRP rescues mice challenged with lethal doses of histones by inhibiting endothelial damage, vascular permeability, and coagulation activation, as reflected by significant reductions in lung edema, hemorrhage, and thrombosis. In patients, elevation of CRP significantly increases the capacity to neutralize extracellular histones in the circulation. We have also confirmed that CRP interacts with individual histones in vitro and forms CRP-histone complexes in serum from patients with both elevated CRP and histones. CRP is able to compete with phospholipid-containing liposomes for the binding to histones. This explains how CRP prevents histones from integrating into cell membranes, which would otherwise induce calcium influx as the major mechanism of cytotoxicity caused by extracellular histones. Because histone elevation occurs in the acute phase of numerous critical illnesses associated with extensive cell death, CRP detoxification of circulating histones would be a generic host defense mechanism in humans.
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Affiliation(s)
- Simon T Abrams
- Department of Blood Sciences, Royal Liverpool and Broadgreen University Hospitals National Health Service Trust, Liverpool L7 8XP, United Kingdom
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Wang C, Yatsuya H, Tamakoshi K, Uemura M, Li Y, Wada K, Yamashita K, Kawaguchi L, Toyoshima H, Aoyama A. Positive association between high-sensitivity C-reactive protein and incidence of type 2 diabetes mellitus in Japanese workers: 6-year follow-up. Diabetes Metab Res Rev 2013; 29:398-405. [PMID: 23463453 DOI: 10.1002/dmrr.2406] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 02/03/2013] [Accepted: 02/13/2013] [Indexed: 01/04/2023]
Abstract
BACKGROUND Elevated high-sensitivity C-reactive protein (hs-CRP), a marker of low-grade systemic inflammation, may be involved in the etiology of type 2 diabetes mellitus (T2DM). However, whether inflammation precedes development of T2DM independent of cigarette smoking and obesity remains to be confirmed. METHODS We studied 4213 civil servants in a local government in Japan aged 35-66 years at baseline in 2002, who donated blood samples and were followed 6 years. Hazard ratios (HR) of T2DM according to the hs-CRP quartiles [range Q1: 0.02-0.18 (reference), Q2: 0.18-0.33, Q3: 0.33-0.67 and Q4: 0.67-9.62 mg/L) were estimated by Cox proportional hazards model adjusted for gender, age, body mass index, alcohol intake, smoking status (current, past and never), number of cigarettes per day, physical activity, family history of diabetes (Model 1) and variables in Model 1 + glucose (Model 2). RESULTS The geometric mean [95% confidence interval (CI)] of hs-CRP was 0.36 mg/L (0.34-0.37). During the follow-up, 156 new T2DM cases were confirmed. In total sample, Model 2 HRs (95% CIs) for hs-CRP quartiles Q2-Q4 compared with Q1 were 0.69 (0.36-1.26), 1.47 (0.91-2.39) and 1.78 (1.10-2.88), respectively (p for linear trend = 0.014). Stratified analysis revealed that a statistically significant association was observed only in normal weight non-current smokers with Model 2 HRs (CIs) being 0.79 (0.29-2.17), 2.63 (1.25-5.56) and 3.19 (1.49-6.86) for Q2-Q4 compared with Q1, respectively (p for linear trend = 0.0006). The relationship did not change materially after further adjusting for log-homeostasis model assessment or exclusion of past smokers. CONCLUSIONS These findings imply that higher hs-CRP itself or existence of chronic systemic inflammation precedes onset of T2DM independent of obesity and smoking.
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Affiliation(s)
- Chaochen Wang
- Department of Public Health and Health Systems, Nagoya University Graduate School of Medicine, Nagoya, Japan
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The Relationship Between CRP Gene Polymorphism and the Serum Concentrations of C-Reactive Protein, Total Cholesterol and HDL Cholesterol in Suckling Piglets / Związek polimorfizmu genu CRP z koncentracją kodowanego białka C-reaktywnego, cholesterolu całkowitego i HDL-ch w surowicy krwi ssących prosiąt. ANNALS OF ANIMAL SCIENCE 2013. [DOI: 10.2478/aoas-2013-0033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AbstractThe relationship between CRP gene (1271 G/A, 3’UTR) polymorphism and the serum levels of C-reactive protein (CRP), total cholesterol (Ch-T) and high density lipoprotein cholesterol (HDL-ch) was analysed in suckling crossbred [Polish Large White × Polish Landrace (♀) × × Duroc × Pietrain (♂)] piglets. CRP genotypes were identified by PCR-RFLP with Hinfi restriction enzyme. The levels of CRP, Ch-T, HDL-ch and white blood cell (WBC) counts were determined in blood samples collected from younger (21±3 days of age) and older piglets (35±3 days of age). There was a relationship between CRP gene (1271 G/A, 3’UTR) polymorphism and variations in the serum levels of CRP in piglets with normal WBC counts. The above relationship did not manifest itself in piglets with elevated WBC counts. The studied genotypes differed in their response to elevated WBC counts, and the noted differences were more pronounced in older piglets. The response of genotypes with weak CRP expression caused an increase in CRP levels and a decrease in the serum concentrations of Ch-T and HDL-ch. Such a response was not observed in the genotype with strong CRP expression.
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Ghattas MH, Abo-Elmatty DM, El-Eraki AZ. C-reactive protein 1059G/C gene polymorphism, C-reactive protein levels and acute myocardial infarction. J Cardiovasc Med (Hagerstown) 2013; 13:716-9. [PMID: 22828776 DOI: 10.2459/jcm.0b013e3283577170] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS High-sensitivity C-reactive protein (hs-CRP) is an inflammatory marker, predicting the occurrence of acute myocardial infarction (AMI). Genetic predisposition to high baseline CRP might account for a high risk of heart diseases. Our study aimed at investigating an association of CRP 1059G/C gene polymorphism with plasma CRP levels and AMI in Egyptian patients. METHODS Genotypes of 150 patients with AMI and 150 healthy sex and age-matched controls were analyzed using PCR-restriction fragment length polymorphism methods. hs-CRP concentrations were assessed. RESULTS There was no significant association between CRP 1095G/C polymorphism and AMI. However, individuals with GG genotype had significantly higher plasma CRP concentration than those with GC and CC genotypes, in both controls (3.82 ± 1.03 vs. 2.34 ± 0.7; P = 0.001) and patients with AMI (8.39 ± 2.6 vs. 6.67 ± 2.4; P = 0.005). CONCLUSION Our results revealed that CRP 1059G/C gene variation influences plasma CRP levels. Conversely, this polymorphism was not associated with the risk for AMI.
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Affiliation(s)
- Maivel H Ghattas
- Department of Medical Biochemistry, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
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90
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Association study of CRP gene in systemic sclerosis in European Caucasian population. Rheumatol Int 2013; 34:389-92. [PMID: 23397258 DOI: 10.1007/s00296-013-2673-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Accepted: 01/08/2013] [Indexed: 10/27/2022]
Abstract
Opsonization and apoptotic cell elements are critical in systemic lupus erythematosus (SLE) and could act through the activation of the innate immunity. C-reactive protein (CRP) belongs to opsonins, and polymorphisms of CRP gene have been shown to be associated with SLE susceptibility. Accumulating evidences show that SLE and systemic sclerosis (SSc) share some genetic susceptibility factors. To determine whether polymorphisms of CRP confer susceptibility to SSc, four SNPs (rs1130864, rs1205, rs1800947 and rs1341665), chosen using Hapmap linkage disequilibrium data and published data, were genotyped in a cohort of 651 SSc patients (569 with antinuclear antibodies, 258 with anti-centromere and 153 with anti-topoisomerase I) and 442 controls. All individuals were of French Caucasian origin. The four polymorphisms were in Hardy-Weinberg equilibrium in the control population. Allelic and genotypic frequencies for these four polymorphisms were found to be similar in SSc patients and controls. Moreover, subphenotype analyses in particular for subgroups having antinuclear antibodies did not detect any difference between SSc patients and controls. These results obtained through a large cohort of European Caucasian SSc patients do not support the implication of CRP gene in the pathogenesis of SSc.
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91
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Association between inflammatory marker, environmental lead exposure, and glutathione S-transferase gene. BIOMED RESEARCH INTERNATIONAL 2013; 2013:474963. [PMID: 23484121 PMCID: PMC3581115 DOI: 10.1155/2013/474963] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Accepted: 12/12/2012] [Indexed: 12/31/2022]
Abstract
A number of studies suggested that lead is related to the induction of oxidative stress, and alteration of immune response. In addition, modifying these toxic effects varied partly by GST polymorphism. The objectives of this study were to assess the association between the lead-induced alteration in serum hs-CRP, with GSTM1, GSTT1, and GSTP1 Val105Ile genetic variations and the health consequence from environmental lead exposure. The 924 blood samples were analyzed for blood lead, CRP, and genotyping of three genes with real-time PCR. Means of blood lead and serum hs-CRP were 5.45 μg/dL and 2.07 mg/L. Both CRP and systolic blood pressure levels were significantly higher for individuals with blood lead in quartile 4 (6.48–24.63 μg/dL) compared with those in quartile 1 (1.23–3.47 μg/dL, P < 0.01). In particular, in men with blood lead >6.47 μg/dL the adjusted odds ratio (OR) of CRP levels for individuals with GSTP1 variants allele, GSTM1 null, GSTT1 null, double-null GSTM1, and GSTT1 compared with wild-type allele was 1.46 (95% CI; 1.05–2.20), 1.32 (95% CI; 1.03–1.69), 1.65 (95% CI; 1.17–2.35), and 1.98 (95% CI; 1.47–2.55), respectively. Our findings suggested that lead exposure is associated with adverse changes in inflammatory marker and SBP. GST polymorphisms are among the genetic determinants related to lead-induced inflammatory response.
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92
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Xiao Y, Haynes WL, Michalek JE, Russell IJ. Elevated serum high-sensitivity C-reactive protein levels in fibromyalgia syndrome patients correlate with body mass index, interleukin-6, interleukin-8, erythrocyte sedimentation rate. Rheumatol Int 2012; 33:1259-64. [DOI: 10.1007/s00296-012-2538-6] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Accepted: 10/21/2012] [Indexed: 01/08/2023]
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Genome-wide association with C-reactive protein levels in CLHNS: evidence for the CRP and HNF1A loci and their interaction with exposure to a pathogenic environment. Inflammation 2012; 35:574-83. [PMID: 21647738 DOI: 10.1007/s10753-011-9348-y] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Recent genome-wide association studies have related several genetic loci, including C-reactive protein (CRP), hepatocyte nuclear factor 1 homeobox (HNF1A), and genetic variations in the leptin receptor (LEPR), to circulating CRP levels in populations of European ancestry. The genetic effects in other populations and across varying levels of exposure to a pathogenic environment, an important environmental factor associated with CRP, remain to be determined. We tested 2,073,674 single-nucleotide polymorphisms (SNPs) for association with plasma CRP (limited to ≤10 mg/L) in 1,709 unrelated Filipino women from the Cebu Longitudinal Health and Nutrition Survey. The strongest evidence of association was observed with variants at CRP (rs876537, P = 1.4 × 10(-9)) and HNF1A (rs7305618, P = 1.0 × 10(-8)). Among other previously reported CRP-associated loci, the apolipoprotein E ε4 haplotype was associated with decreased CRP level (P = 7.1 × 10(-4)), and modest association was observed with LEPR (rs1892534, P = 0.076), with direction of effects consistent with previous studies. The strongest signal at a locus not previously reported mapped to a gene desert region on chromosome 6q16.1 (rs1408282, P = 2.9 × 10(-6)). Finally, we observed nominal evidence of interaction with exposure to a pathogenic environment for top main effect SNPs at HNF1A (rs7305618, P = 0.031), LEPR (rs1892535, P = 0.030) and 6q16.1 (rs1408282, P = 0.046). Our findings demonstrate convincing evidence that genetic variants in CRP and HNF1A contribute to plasma CRP in Filipino women and provide the first evidence that exposure to a pathogenic environment may modify the genetic influence at the HNF1A, LEPR, and 6q16.1 loci on plasma CRP level.
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Queipo-Ortuño MI, Boto-Ordóñez M, Murri M, Gomez-Zumaquero JM, Clemente-Postigo M, Estruch R, Cardona Diaz F, Andrés-Lacueva C, Tinahones FJ. Influence of red wine polyphenols and ethanol on the gut microbiota ecology and biochemical biomarkers. Am J Clin Nutr 2012; 95:1323-34. [PMID: 22552027 DOI: 10.3945/ajcn.111.027847] [Citation(s) in RCA: 439] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Few studies have investigated the effect of dietary polyphenols on the complex human gut microbiota, and they focused mainly on single polyphenol molecules and select bacterial populations. OBJECTIVE The objective was to evaluate the effect of a moderate intake of red wine polyphenols on select gut microbial groups implicated in host health benefits. DESIGN Ten healthy male volunteers underwent a randomized, crossover, controlled intervention study. After a washout period, all of the subjects received red wine, the equivalent amount of de-alcoholized red wine, or gin for 20 d each. Total fecal DNA was submitted to polymerase chain reaction(PCR)-denaturing gradient gel electrophoresis and real-time quantitative PCR to monitor and quantify changes in fecal microbiota. Several biochemical markers were measured. RESULTS The dominant bacterial composition did not remain constant over the different intake periods. Compared with baseline, the daily consumption of red wine polyphenol for 4 wk significantly increased the number of Enterococcus, Prevotella, Bacteroides, Bifidobacterium, Bacteroides uniformis, Eggerthella lenta, and Blautia coccoides-Eubacterium rectale groups (P < 0.05). In parallel, systolic and diastolic blood pressures and triglyceride, total cholesterol, HDL cholesterol, and C-reactive protein concentrations decreased significantly (P < 0.05). Moreover, changes in cholesterol and C-reactive protein concentrations were linked to changes in the bifidobacteria number. CONCLUSION This study showed that red wine consumption can significantly modulate the growth of select gut microbiota in humans, which suggests possible prebiotic benefits associated with the inclusion of red wine polyphenols in the diet. This trial was registered at controlled-trials.com as ISRCTN88720134.
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Doumatey AP, Chen G, Tekola Ayele F, Zhou J, Erdos M, Shriner D, Huang H, Adeleye J, Balogun W, Fasanmade O, Johnson T, Oli J, Okafor G, Amoah A, Eghan BA, Agyenim-Boateng K, Acheampong J, Adebamowo C, Gerry NP, Christman MF, Adeyemo A, Rotimi CN. C-reactive protein (CRP) promoter polymorphisms influence circulating CRP levels in a genome-wide association study of African Americans. Hum Mol Genet 2012; 21:3063-72. [PMID: 22492993 DOI: 10.1093/hmg/dds133] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
C-reactive protein (CRP) is an acute phase reactant protein produced primarily by the liver. Circulating CRP levels are influenced by genetic and non-genetic factors, including infection and obesity. Genome-wide association studies (GWAS) provide an unbiased approach towards identifying loci influencing CRP levels. None of the six GWAS for CRP levels has been conducted in an African ancestry population. The present study aims to: (i) identify genetic variants that influence serum CRP in African Americans (AA) using a genome-wide association approach and replicate these findings in West Africans (WA), (ii) assess transferability of major signals for CRP reported in European ancestry populations (EA) to AA and (iii) use the weak linkage disequilibrium (LD) structure characteristic of African ancestry populations to fine-map the previously reported CRP locus. The discovery cohort comprised 837 unrelated AA, with the replication of significant single-nucleotide polymorphisms (SNPs) assessed in 486 WA. The association analysis was conducted with 2 366 856 genotyped and imputed SNPs under an additive genetic model with adjustment for appropriate covariates. Genome-wide and replication significances were set at P < 5 × 10(-8) and P < 0.05, respectively. Ten SNPs in (CRP pseudogene-1) CRPP1 and CRP genes were associated with serum CRP (P = 2.4 × 10(-09) to 4.3 × 10(-11)). All but one of the top-scoring SNPs associated with CRP in AA were successfully replicated in WA. CRP signals previously identified in EA samples were transferable to AAs, and we were able to fine-map this signal, reducing the region of interest from the 25 kb of LD around the locus in the HapMap CEU sample to only 8 kb in our AA sample.
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Affiliation(s)
- Ayo P Doumatey
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA.
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Wang TN, Wu CC, Huang MS, Wang CC, Huang CC, Wang TH, Lien TC, Ko YC, Lin MC. The polymorphisms of C-reactive protein gene modify the association between central obesity and lung function in taiwan asthmatics. Scand J Immunol 2011; 74:482-8. [PMID: 21790705 DOI: 10.1111/j.1365-3083.2011.02599.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
High-sensitivity C-reactive protein (hs-CRP) concentrations and obesity are proposed to have a significant relationship with impairment of lung function, but little has been reported to date on the association between CRP gene and lung function. We studied the association of three tagSNPs (tag single nucleotide polymorphisms) of CRP gene and their interactions with central obesity on lung function. A total of 384 asthmatic adults and 384 controls who were 1:1 matched by sex and age were recruited for this study. Three tagSNPs polymorphisms for CRP rs1417938, rs1800947 and rs1205 were selected from HapMap data and genotyping by using TaqMan allelic discrimination assay. A questionnaire interview, body composition and pulmonary function tests were performed. CRP single nucleotide polymorphisms (SNPs) did not increase the risk of asthma, but CRP rs1205 CC genotype significantly decreased the predictive value of forced vital capacity (FVC) in the asthma group (adjusted mean change = -7.54%, 95% CI = -13.82 to -1.25%). Waist-to-hip ratio, not body mass index, also decreased the predictive value of FVC in asthmatics. The subjects with central obesity who carried CRP SNPs have a significant reduction effect in lung function. The current results suggest that central obesity may play a major role in lung function, and these effects were modified significantly by the polymorphisms for CRP gene.
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Affiliation(s)
- T-N Wang
- Department of Public Health, College of Health Science, Kaohsiung Medical University, Taiwan
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Rius-Ottenheim N, de Craen AJM, Geleijnse JM, Slagboom PE, Kromhout D, van der Mast RC, Zitman FG, Westendorp RG, Giltay EJ. C-reactive protein haplotypes and dispositional optimism in obese and nonobese elderly subjects. Inflamm Res 2011; 61:43-51. [PMID: 21979869 PMCID: PMC3249168 DOI: 10.1007/s00011-011-0387-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Revised: 08/04/2011] [Accepted: 09/12/2011] [Indexed: 01/31/2023] Open
Abstract
Background Chronic low-grade inflammation, characterized by elevated plasma levels of C-reactive protein (CRP), has been inversely associated with dispositional optimism. Using a Mendelian randomization design, this study explores whether CRP haplotypes that determine CRP plasma levels are also associated with dispositional optimism. Methods In a sample of 1,084 community-dwelling subjects (aged 60–85 years) from three cohort studies (Arnhem Elderly Study, n = 426; Leiden Longevity Study, n = 355; Zutphen Elderly Study, n = 303), six CRP polymorphisms (rs2808628, rs2808630, rs1205, rs1800947, rs1417938, and rs3091244) coding for five common haplotypes were genotyped. The association of CRP haplotypes with CRP plasma levels and dispositional optimism was analyzed using multivariable linear regression models. Subanalyses were stratified by body mass index (BMI ≥25 kg/m2). Results CRP haplotypes determined CRP plasma levels (adjusted β = 0.094, p < 0.001). In the whole group, no association was found between CRP haplotypes and dispositional optimism scores (adjusted β = −0.02, p = 0.45). In BMI strata, CRP haplotypes were associated with increasing levels of plasma CRP levels (adjusted β = 0.112; p = 0.002) and lower dispositional optimism levels (adjusted β = −0.068; p = 0.03) in the obese group only. Conclusions These results suggest that genetically increased CRP levels are involved in low dispositional optimism, but only in case of obesity.
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Toriola AT, Ulrich CM. Is there a potential use for C-reactive protein as a diagnostic and prognostic marker for colorectal cancer? Future Oncol 2011; 7:1125-8. [DOI: 10.2217/fon.11.92] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Affiliation(s)
- Adetunji T Toriola
- Division of Preventive Oncology, National Center for Tumor Diseases & German Cancer Research Center, Im Neuenheimer Feld 460, 69120, Heidelberg, Germany
| | - Cornelia M Ulrich
- Cancer Prevention Program, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
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Fatigued breast cancer survivors and gene polymorphisms in the inflammatory pathway. Brain Behav Immun 2011; 25:1376-83. [PMID: 21496483 DOI: 10.1016/j.bbi.2011.04.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2010] [Revised: 03/28/2011] [Accepted: 04/03/2011] [Indexed: 11/21/2022] Open
Abstract
Chronic fatigue (CF) in breast cancer survivors (BCSs) has been associated with increased serum C-reactive protein-levels (CRP), pro-inflammatory cytokines and cytokine gene single nucleotide polymorphisms (SNPs). Still, there are few studies on these topics, and due to small study-cohorts the possibility to adjust for other conditions related to inflammatory processes, e.g. depression, has been limited. In 302 BCSs, examined approximately four years after treatment for breast cancer stage II/III, data on high sensitivity (hs)CRP, leukocytes and mRNA interleukin (IL)1β and IL6R expression, depression and chronic fatigue were available. Three years thereafter, 236 BCSs were re-examined. The associations between fatigue and SNPs in inflammation-related genes; IL1β (rs16944), IL6 (rs1800795), IL6receptor (rs4129267, rs4845617, rs2228145), CRP (rs2794521, rs3091244) were investigated, together with the relations between SNPs in IL6R,IL1β and CRP genes and mRNA blood expression levels of IL6R and IL1β and serum hsCRP-levels, respectively. All analyses were repeated after exclusion of depressed individuals and separating BCSs with persistent fatigue from never-fatigued individuals. Even after exclusion of depressed individuals neither the SNPs nor the mRNA IL1β and IL6R expression levels were associated with chronic or persistent fatigue. In the subset of persistent fatigued and never-fatigued individuals the CRP SNP (rs3091244) was associated with hsCRP level (p=0.02). IL1β and IL6R mRNA expression levels were not related to the IL1β and IL6R genotypes. In a large cohort of BCSs the investigated SNPs in inflammation-related genes were not associated with fatigue, though subset analyses indicated an association between the CRP SNP (rs3091244) and serum hsCRP.
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