scholarly journals Quantitative trait locus on chromosome 20q13 for plasma levels of C-reactive protein in healthy whites: the HERITAGE Family Study

2006 ◽  
Vol 27 (2) ◽  
pp. 103-107 ◽  
Author(s):  
Timo A. Lakka ◽  
Tuomo Rankinen ◽  
Treva Rice ◽  
Arthur S. Leon ◽  
D. C. Rao ◽  
...  
Keyword(s):  
Plasma Levels ◽  
Family Study ◽  
Inflammatory Diseases ◽  
Low Grade ◽  
C Reactive Protein ◽  
Lod Score ◽  
Chronic Inflammatory Diseases ◽  
Reactive Protein ◽  
A Genome ◽  
Chromosome 20Q13

C-reactive protein (CRP) is a sensitive marker of systemic low-grade inflammation. Increased plasma levels of CRP predict the risk of cardiovascular and metabolic diseases. Although genetic factors account for 30–40% of individual differences in plasma CRP levels, genomic regions contributing to CRP levels remain unknown. We performed a genome-wide linkage scan for plasma CRP levels in healthy whites from the HERITAGE Family Study. CRP was measured with a high-sensitivity assay. Multipoint linkage analyses were performed in 280 sibling pairs with 654 markers using regression and variance components-based methods. Data were adjusted for independent correlates of plasma CRP. We showed the strongest evidence of linkage for plasma CRP levels on chromosome 20q13. Markers which gave suggestive linkages in this region were D20S52 [logarithm of odds (LOD) score 3.18, P = 0.00006], D20S857 (LOD score 2.87, P = 0.00014), D20S869 (LOD score 2.75, P = 0.0002), D20S480 (LOD score 2.59, P = 0.0003), D20S501 (LOD score 2.55, P = 0.0003), D20S840 (LOD score 2.18, P = 0.0008), and D20S876 (LOD score 2.07, P = 0.001). We also detected suggestive linkage on chromosome 5p13 for marker D5S1470 (LOD score 2.23, P = 0.0007). Chromosome 20q13 may contribute to plasma CRP levels in healthy whites. This region contains genes that are important in the inflammatory process and may play a role in the development of chronic inflammatory diseases. The present findings may be useful in the ongoing effort to search for genes contributing to inflammation and to identify individuals at an increased risk of chronic inflammatory diseases.

High Plasma Concentration of Factor VIIIc Is a Major Risk Factor for Venous Thromboembolism

2000 ◽  
Vol 83 (01) ◽  
pp. 5-9 ◽  
Author(s):  
Pieternella in 't Anker ◽  
Marianne Koopman ◽  
Pieter Reitsma ◽  
Martin Prins ◽  
Abraham van den Ende ◽  
...  
Keyword(s):  
Risk Factors ◽  
Venous Thromboembolism ◽  
Plasma Levels ◽  
Family Study ◽  
High Plasma ◽  
Elevated Plasma ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Recurrent Venous Thromboembolism ◽  
Over Time

SummaryEstablished risk factors, including deficiencies of protein C, protein S or antithrombin and the factor V Leiden and prothrombin mutation, are present in about one third of unselected patients with venous thromboembolism. In addition to these inherited thrombophilic defects, elevated plasma levels of factor VIIIc have been suggested to be important in the pathogenesis of (recurrent) venous thromboembolism. The objective of this study was to assess the relevance of factor VIIIc plasma concentration in consecutive patients with venous thromboembolism.We studied the prevalence of elevated plasma levels of factor VIIIc in 65 patients with a proven single episode and in 60 matched patients with documented recurrent venous thromboembolism. The reference group consisted of 60 ageand sex-matched patients who were referred for suspected venous thromboembolism, which was refuted by objective testing and longterm clinical follow-up. To minimalize the influence of the acute phase, blood was obtained at least 6 months after the thromboembolic event and results were adjusted for fibrinogen and C-reactive protein. Factor VIIIc was re-determined several years after the first measurement in a subset of patients to evaluate the variability over time. To study a possible genetic cause, a family study was done.In the control, single and recurrent episode group, the prevalences of plasma levels of factor VIIIc above 175 IU/dl (90th percentile of controls) were 10% (95% CI: 4 to 21%), 19% (95% CI: 10 to 30%) and 33% (95% CI: 22 to 47%), respectively. For each 10 IU/dl increment of factor VIIIc, the risk for a single and recurrent episode of venous thrombosis increased by 10% (95% CI: 0.9 to 21%) and 24% (95% CI: 11 to 38%), respectively. Both low and high plasma levels of factor VIIIc were consistent over time (R = 0.80, p = 0.01). A family study indicated a high concordance for elevated factor VIIIc plasma concentrations among first degree family members. Adjustment for fibrinogen, C-reactive protein and known thrombophilic risk factors did not change the observed association of elevated factor VIIIc with thrombosis.Elevated plasma levels of factor VIIIc are a significant, prevalent, independent and dose-dependent risk factor for venous thromboembolism. It also predisposes to recurrent venous thromboembolism.

scholarly journals Effect of exercise training on plasma levels of C-reactive protein in healthy adults: the HERITAGE Family Study

2005 ◽  
Vol 26 (19) ◽  
pp. 2018-2025 ◽  
Author(s):  
Timo A. Lakka ◽  
Hanna-Maaria Lakka ◽  
Tuomo Rankinen ◽  
Arthur S. Leon ◽  
D.C. Rao ◽  
...  
Keyword(s):  
Exercise Training ◽  
Plasma Levels ◽  
Family Study ◽  
Healthy Adults ◽  
C Reactive Protein ◽  
Reactive Protein

scholarly journals C-Reactive Protein Levels and its Association with Acute and Chronic Inflammatory Diseases- An Observational Study

2021 ◽  
Vol 04 (10) ◽  
Author(s):  
Aashish Bharti ◽  
Keyword(s):  
Bacterial Infections ◽  
Tissue Injury ◽  
Inflammatory Diseases ◽  
Serological Test ◽  
C Reactive Protein ◽  
Serum Samples ◽  
Blood Samples ◽  
Chronic Inflammatory Diseases ◽  
Protein Levels ◽  
Reactive Protein

Background: C-reactive protein is a nonspecific, acute-phase, inflammatory protein, whose expression is increased in response to tissue injury, inflammation and infection. The highest concentrations of CRP are found in an individual having some bacterial infections where CRP level increase up to 1,000-fold. The present study was undertaken to determine the C-reactive protein levels in clinically suspected OPD and IPD patient by Latex agglutination test (LAT). Material and Methods: Blood samples were collected from clinically suspected OPD and IPD patients with signs of inflammation in plain vacutainer tubes and received in Serology laboratory of Microbiology Department for CRP testing. All blood samples were screened by Qualitative CRP assay by using commercially available kit. Blood samples that were positive were further tested for CRP titre by semi-quantitative test using same kit (Beacon Diagnostics Pvt Ltd ). Results: A total of 450 serum samples were received for CRP testing during a period of six months. Higher CRP levels were obtained in patients with chronic inflammatory diseases (76%) and as compared to patients with acute inflammatory diseases (24%). Conclusion: CRP is an inexpensive and easily available serological test helpful in correlating severity and mortality of any disease. Early CRP testing can be a very helpful tool to improve the clinical outcomes of patients and decreased mortality.

scholarly journals The combined impact of persistent infections and human genetic variation on C-reactive protein levels

2022 ◽  
Author(s):  
Flavia Hodel ◽  
Olivier Naret ◽  
Clara Bonnet ◽  
Nicole Brenner ◽  
Noemi Bender ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Plasma Levels ◽  
P Value ◽  
Polygenic Risk Score ◽  
Low Grade ◽  
Human Genetic Variation ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Persistent Infections ◽  
Low Grade Inflammation

Multiple human pathogens establish chronic, sometimes life-long infections. Even if they are often latent, these infections can trigger some degree of local or systemic immune response, resulting in chronic low-grade inflammation. There remains an incomplete understanding of the potential contribution of both persistent infections and human genetic variation on chronic low-grade inflammation. We searched for potential associations between seropositivity for 13 persistent pathogens and the plasma levels of the inflammatory biomarker C-reactive protein (CRP), using data collected in the context of the UK Biobank and the CoLaus|PsyCoLaus Study, two large population-based cohorts. We performed backward stepwise regression starting with the following potential predictors: serostatus for each pathogen, polygenic risk score for CRP, as well as demographic and clinical factors known to be associated with CRP. We found evidence for an association between Chlamydia trachomatis (P-value = 5.04e-3) and Helicobacter pylori (P-value = 8.63e-4) seropositivity and higher plasma levels of CRP. We also found an association between pathogen burden and CRP levels (P-value = 4.12e-4). These results improve our understanding of the relationship between persistent infections and chronic inflammation, an important determinant of long-term morbidity in humans.

Synergism Effects of Ursolic Acid Supplementation on the Levels of Irisin, C-reactive Protein, IL-6, and TNF-α During High-intensity Resistance Training in Low Activity Men

2020 ◽  
Vol 20 (2) ◽  
pp. 138-144 ◽  
Author(s):  
Ehsan Asghari ◽  
Amir Rashidlamir ◽  
Seyyed R.A. Hosseini ◽  
Mahtab Moazzami ◽  
Saeed Samarghandian ◽  
...  
Keyword(s):  
Resistance Training ◽  
Ursolic Acid ◽  
High Intensity ◽  
Plasma Levels ◽  
Group Versus ◽  
Current Data ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Tnf Α ◽  
Low Activity

Background:: Ursolic Acid (UA) is a pentacyclic triterpenoid carboxylic acid which is extracted from plants. UA may enhance the effect of Resistance Training (RT) in human. Objective: Current research was designed to show the effect of High-Intensity Resistance Training (HIRT) in the presence or absence of UA on the serum levels of irisin, CRP, IL-6 and TNF-α in the low activity men. Method:: The study included twenty-two healthy male HIRT with placebo, supplementation, and HIRT in the presence of UA supplementation. The two groups received eight-week intervention including 2 sets of 8 exercises, with 8~10 repetitions at 70~75% of 1 repetition maximum and a 2 min rest interval between sets, performed 3 times/week. Placebo or UA orally was evaluated as 1 capsule 3 times/day during 8 weeks. The subsequent factors were measured post- and preintervention: C-Reactive Protein (CRP), Irisin, Tumor Necrotic Factor (TNF-α) and Interleukin-6 (IL-6). Results:: UA supplementation significantly increased the plasma levels of irisin in the HIRT+UA group versus the HIRT+P group (p<0.05). UA treatment also dramatically decreased the plasma levels of CRP, IL-6, and TNF-α in the HIRT+UA group versus the HIRT+P group (p<0.05). Conclusion:: The current data showed that UA-induced an increase in serum irisin and reduction of CRP, IL-6, and TNF-α may have beneficial effects as a chemical for increasing of the effects of HIRT in low activity men.

scholarly journals Oxidative Stress Is Increased in Combined Oral Contraceptives Users and Is Positively Associated with High-Sensitivity C-Reactive Protein

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 1070
Author(s):  
Sabina Cauci ◽  
Serena Xodo ◽  
Cinzia Buligan ◽  
Chiara Colaninno ◽  
Mattia Barbina ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
High Sensitivity ◽  
Low Grade ◽  
Strong Positive Correlation ◽  
Obese Women ◽  
C Reactive Protein ◽  
Oxidative Stress Biomarkers ◽  
Free Oxygen Radical ◽  
Reactive Protein ◽  
Healthy Women

Information concerning the mechanisms underlying oxidative stress and low-grade inflammation in young healthy women predisposing eventually to future diseases is scarce. We investigated the relationship of oxidative stress and high-sensitivity C-reactive protein (hsCRP) in fertile-age women by oral combined contraceptive (OC) use. Caucasian Italian healthy non-obese women (n = 290; 100 OC-users; 190 non-OC-users; mean age 23.2 ± 4.7 years) were analyzed. Blood hydroperoxides, as oxidative stress biomarkers, were assessed by Free Oxygen Radical Test (FORT). Serum hsCRP was determined by an ultra-sensitive method (hsCRP). Markedly elevated oxidative stress (≥400 FORT Units) was found in 77.0% of OC-users and 1.6% of non-OC-users, odds ratio (OR) = 209, 95% CI = 60.9–715.4, p < 0.001. Elevated hsCRP levels ≥ 2.0 mg/L, considered risky for cardiovascular diseases (CVDs), were found in 41.0% of OC-users and 9.5% of non-OC-users, OR = 6.6, 95%CI 3.5–12.4, p < 0.001. Hydroperoxides were strongly positively correlated to hsCRP in all women (rs = 0.622, p < 0.001), in OC-users (rs = 0.442, p < 0.001), and in non-OC-users (rs = 0.426, p < 0.001). Women with hydroperoxides ≥ 400 FORT Units were eight times as likely to have hsCRP ≥ 2 mg/L. In non-OC-users only, hydroperoxides values were positively correlated with weight and body mass index, but negatively correlated with red meat, fish and chocolate consumption. Our research is the first finding a strong positive correlation of serum hydroperoxides with hsCRP, a marker of low-grade chronic inflammation, in young healthy women. Further research is needed to elucidate the potential role of these two biomarkers in OC-use associated side-effects, like thromboembolism and other CVDs.

scholarly journals Association between fasting insulin and C-reactive protein among adults without diabetes using a two-part model: NHANES 2005–2010

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Amanda L. Missel ◽  
Laura R. Saslow ◽  
Dina H. Griauzde ◽  
Donna Marvicsin ◽  
Ananda Sen ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Waist Circumference ◽  
Low Grade ◽  
Fasting Insulin ◽  
C Reactive Protein ◽  
Glucose Levels ◽  
Reactive Protein ◽  
Part Model

Abstract Introduction Chronic inflammation is associated with the development, progression and long-term complications of type 2 diabetes. Hyperglycemia is associated with chronic low-grade inflammation, and thus has become the focus of many screening and treatment recommendations. We hypothesize that insulin may also be associated with inflammation and may be an additional factor to consider in screening and treatment. Methods This study used National Health and Nutrition Examination Survey data from 2005 to 2010 to analyze the association between fasting insulin and C-reactive protein (CRP). A two-part model was used due to the high number of values reported as 0.1 mg/L. Two models were analyzed, both with and without the addition of waist circumference to other covariates in the model. Results The final sample included 4527 adults with a mean age of 43.31 years. In the first model, higher fasting insulin was associated with increased odds of CRP > 0.1 mg/L (OR = 1.02, p < .001) and with higher CRP (β = 0.03, p < .001). In the adjusted model, including waist circumference as a covariate, higher fasting insulin was not associated with CRP > 0.1 mg/L (OR = 1.00, p = .307) but the association between higher fasting insulin and higher continuous CRP remained significant (β = 0.01, p = .012). Conclusion This study found that higher fasting insulin is associated with higher CRP. These results suggest that treatment approaches that simultaneously decrease insulin levels as well as glucose levels may provide additive anti-inflammatory effects, and therefore may improve long-term outcomes for adults with type 2 diabetes.

Association of increased C-Reactive Protein and hypocomplementemia with risk factors for thrombosis in women who have susceptibility for poor gestational outcome; importance of preconceptional counseling

2021 ◽  
pp. 1-6
Author(s):  
Mehmet Sinan Beksac ◽  
Hanife Guler Donmez
Keyword(s):  
Risk Factors ◽  
Inflammatory Diseases ◽  
Factor V Leiden ◽  
Care Program ◽  
Prothrombin G20210a ◽  
Study Group ◽  
Factor V ◽  
C Reactive Protein ◽  
Mthfr Polymorphisms ◽  
Reactive Protein

This study aimed to investigate the association of increased C-Reactive Protein (CRP) and hypocomplementemia with risk factors for thrombosis such as Factor V Leiden (FVLP) and Prothrombin G20210A polymorphisms (PP), increased Activated Protein C Resistance (APCR) and decreased anti-thrombin III (ATIII) activity in women who have metabolic (MTHFR polymorphisms) and immunological risk factors (autoimmune antibody positivity, autoimmune disorders, and chronic inflammatory diseases). All patients (n= 197) were evaluated in terms of risk factors for thrombosis including FVLP, PP, increased APCR, and decreased ATIII activity as well as CRP and complement (C) 3 and C4 levels within a framework of preconceptional care program. Patients with high CRP levels together with hypocomplementemia were included to the study group (n= 13), while women with normal levels of CRP, C3, and C4 were accepted as controls (n= 184). Decreased ATIII activity was found to be statistically more frequent in the study group compared to controls (p= 0.036). There were no significant differences between the study and control groups in terms of the presence of FVLP, PP and increased APCR (p= 0.386, p= 0.462, p= 0.625, respectively). Decreased ATIII activity should be the concern of preconceptional and antenatal care programs in risky patients with increased CRP levels and hypocomplementemia in order to prevent placental inflammation related gestational complications.

Sign in / Sign up

Export Citation Format

Share Document