scholarly journals C-Reactive Protein Triggers Cell Death in Ischemic Cells

2021 ◽  
Vol 12 ◽  
Author(s):  
Ahmed Sheriff ◽  
Stefan Kayser ◽  
Patrizia Brunner ◽  
Birgit Vogt
Keyword(s):  
Blood Pressure ◽  
Physiological Function ◽  
Acute Phase Protein ◽  
C Reactive Protein ◽  
Classical Complement Pathway ◽  
Reactive Protein ◽  
Additional Influence ◽  
External Wound ◽  
Classical Complement ◽  
Alveolar Edema

C-reactive protein (CRP) is the best-known acute phase protein. In humans, almost every type of inflammation is accompanied by an increase of CRP concentration. Until recently, the only known physiological function of CRP was the marking of cells to initiate their phagocytosis. This triggers the classical complement pathway up to C4, which helps to eliminate pathogens and dead cells. However, vital cells with reduced energy supply are also marked, which is useful in the case of a classical external wound because an important substrate for pathogens is disposed of, but is counterproductive at internal wounds (e.g., heart attack or stroke). This mechanism negatively affects clinical outcomes since it is established that CRP levels correlate with the prognosis of these indications. Here, we summarize what we can learn from a clinical study in which CRP was adsorbed from the bloodstream by CRP-apheresis. Recently, it was shown that CRP can have a direct effect on blood pressure in rabbits. This is interesting in regard to patients with high inflammation, as they often become tachycardic and need catecholamines. These two physiological effects of CRP apparently also occur in COVID-19. Parts of the lung become ischemic due to intra-alveolar edema and hemorrhage and in parallel CRP increases dramatically, hence it is assumed that CRP is also involved in this ischemic condition. It is meanwhile considered that most of the damage in COVID-19 is caused by the immune system. The high amounts of CRP could have an additional influence on blood pressure in severe COVID-19.

scholarly journals C - REACTIVE PROTEIN: AN INFLAMMATORY BIOMARKER PRESENT IN MULTIPLE DISEASE PATHOGENESIS

2019 ◽  
pp. 1-4
Author(s):  
Parvinder Kaur
Keyword(s):  
Bacterial Infection ◽  
Biological Function ◽  
Acute Phase Protein ◽  
C Reactive Protein ◽  
Inflammatory Biomarker ◽  
Classical Complement Pathway ◽  
Reactive Protein ◽  
Phase Protein ◽  
Clinical Conditions ◽  
Classical Complement

C-reactive protein (CRP) is an acute-phase protein belongs to pentraxins family with a feature of ve identical globular subunits. Two different isoforms i.e. pentameric CRP (pCRP) and monomeric CRP (mCRP) have different key role in regulation. The key biological function of CRP is host defense using classical complement pathway against bacterial infection and involved in removal of apoptotic and necrotic cells. Although CRP is mainly associated with inammation in bacterial infection such as tuberculosis or Pneumococcus infection, however it is also presence in atherosclerosis, cardiovascular disease (CVD) and in various cancers which make it good candidate for prognostic study in different clinical conditions.

Heparin-protamine Complexes and C-reactive Protein Induce Activation of the Classical Complement Pathway: Studies in Patients Undergoing Cardiac Surgery and In Vitro

2000 ◽  
Vol 84 (08) ◽  
pp. 237-243 ◽  
Author(s):  
Henk Velthuis ◽  
Anke Eerenberg-Belmer ◽  
Aria Yazdanbakhsh ◽  
Eddy de Beaumont ◽  
León Eijsman ◽  
...  
Keyword(s):  
Cardiac Surgery ◽  
Complement Activation ◽  
Complement Pathway ◽  
C Reactive Protein ◽  
Postoperative Arrhythmia ◽  
Classical Complement Pathway ◽  
Reactive Protein ◽  
Protamine Administration ◽  
Classical Complement

SummaryThe administration of protamine to patients undergoing cardiopulmonary bypass (CPB) to neutralize heparin and to reduce the risk of bleeding, induces activation of the classical complement pathway mainly by heparin-protamine complexes. We investigated whether C-reactive protein (CRP) contributes to protamine-induced complement activation.In 24 patients during myocardial revascularization, we measured complement, CRP, and complement-CRP complexes, reflecting CRPmediated complement activation in vivo. We also incubated plasma from healthy volunteers and patients with heparin and protamine in vitro to study CRP-mediated complement activation. During CPB, CRP levels remained unchanged while C3 activation products increased. C4 activation occurred after protamine administration. CRP-complement complexes increased at the end of CPB and upon protamine administration. Incubation of plasma with heparin and protamine in vitro generated complement-CRP complexes, which was blocked by phosphorylcholine and stimulated by exogenous CRP. C4d-CRP complex formation after protamine administration correlated clinically with the incidence of postoperative arrhythmia.Protamine administration during cardiac surgery induces complement activation which in part is CRP-dependent, and correlates with postoperative arrhythmia.

Serum Uric Acid Level as a Predictive Biomarker of Gestational Hypertension Severity; A Prospective Observational Case-Control Study

2020 ◽  
Vol 15 (3) ◽  
pp. 227-239 ◽  
Author(s):  
Hader I. Sakr ◽  
Akef A. Khowailed ◽  
Reham S. Al-Fakharany ◽  
Dina S. Abdel-Fattah ◽  
Ahmed A. Taha
Keyword(s):  
Blood Pressure ◽  
Pregnant Women ◽  
Case Control Study ◽  
Serum Urate ◽  
Interleukin 1Β ◽  
Pregnancy Induced Hypertension ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Induced Hypertension ◽  
Control Study

Background: Pre-eclampsia poses a significant potential risk of hypertensive disorders during pregnancy, a leading cause of maternal deaths. Hyperuricemia is associated with adverse effects on endothelial function, normal cellular metabolism, and platelet aggregation and adhesion. This study was designed to compare serum urate levels in normotensive pregnant women to those with pregnancy-induced hypertension, and to evaluate its value as a potential predictive marker of hypertension severity during pregnancy. Methods: A prospective, observational, case-control study conducted on 100 pregnant women in their third trimester. Pregnant women were classified into two groups (n=50) according to arterial blood pressure measurements: group I had normal blood pressure, and group II had a blood pressure of ≥ 140/90, which was further subdivided according to hypertension severity into IIa (pregnancy- induced hypertension, IIb (mild pre-eclampsia), and IIc (severe pre-eclampsia). Blood samples were obtained on admission. Serum urate, high sensitive C-reactive protein, and interleukin-1β levels, and lipid profile were compared among the groups. Results: A significant increase in the mean values of serum urate, C-reactive protein, and interleukin- 1β levels was detected in gestational hypertensives. In addition, there was a positive correlation between serum urate levels and C-reactive protein and interleukin-1β, as well as between serum urate levels and hypertension severity. Conclusion: Hyperuricemia and increased C-reactive protein and interleukin-1β serum levels correlate with the severity of pregnancy-induced hypertension, and these biomarkers may play a role in the pathogenesis of pre-eclampsia. Serum urate measurement is sensitive, reliable markers that correlate well with the severity of hypertension in pregnant females with pre-eclampsia.

scholarly journals Serum Cathepsin S Is Associated with Serum C-Reactive Protein and Interleukin-6 Independently of Obesity in Elderly Men

2010 ◽  
Vol 95 (9) ◽  
pp. 4460-4464 ◽  
Author(s):  
E. Jobs ◽  
U. Risérus ◽  
E. Ingelsson ◽  
J. Helmersson ◽  
E. Nerpin ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Body Mass Index ◽  
Confidence Interval ◽  
Regression Coefficient ◽  
Normal Weight ◽  
Cathepsin S ◽  
C Reactive Protein ◽  
Elderly Men ◽  
Community Based ◽  
Reactive Protein

Objective: Cathepsin S has been suggested provide a mechanistic link between obesity and atherosclerosis, possibly mediated via adipose tissue-derived inflammation. Previous data have shown an association between circulating cathepsin S and inflammatory markers in the obese, but to date, community-based reports are lacking. Accordingly, we aimed to investigate the association between serum levels of cathepsin S and markers of cytokine-mediated inflammation in a community-based sample, with prespecified subgroup analyses in nonobese participants. Methods: Serum cathepsin S, C-reactive protein (CRP), and IL-6 were measured in a community-based cohort of elderly men (Uppsala Longitudinal Study of Adult Men; mean age 71 years, n = 991). CRP and IL-6 were also measured at a reexamination after 7 yr. Results: After adjustment for age, body mass index, fasting plasma glucose, diabetes treatment, systolic blood pressure, diastolic blood pressure, hypertension treatment, serum cholesterol, serum high-density lipoprotein cholesterol, prior cardiovascular disease, smoking, and leisure time physical activity, higher cathepsin S was associated with higher CRP (regression coefficient for 1 sd increase, 0.13; 95% confidence interval 0.07–0.19; P < 0.001) and higher serum IL-6 (regression coefficient for 1 sd increase, 0.08; 95% confidence interval 0.01–0.14; P = 0.02). These associations remained similar in normal-weight participants (body mass index <25 kg/m2, n = 375). In longitudinal analyses, higher cathepsin S at baseline was associated with higher serum CRP and IL-6 after 7 yr. Conclusions: These results provide additional evidence for the interplay between cathepsin S and inflammatory activity and suggest that this association is present also in normal-weight individuals in the community.

scholarly journals The Predictive Role of Tooth Extractions, Oral Infections, and hs-C-Reactive Protein for Mortality in Individuals with and without Diabetes: A Prospective Cohort Study of a 12 1/2-Year Follow-Up

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Lise Lund Håheim ◽  
Kjersti S. Rønningen ◽  
Morten Enersen ◽  
Ingar Olsen
Keyword(s):  
Blood Pressure ◽  
Cohort Study ◽  
C Reactive Protein ◽  
Oral Infections ◽  
Reactive Protein ◽  
Predictive Role ◽  
Hs Crp ◽  
Tooth Extractions

The predictive role of high-sensitivity C-reactive protein (hs-CRP), number of tooth extractions, and oral infections for mortality in people with and without diabetes is unclear. This prospective cohort study is a 12 1/2-year follow-up of the Oslo II study, a health survey in 2000. In all, 12,764 men were invited. Health information was retrieved from 6434 elderly men through questionnaire information, serum measurements, and anthropometric and blood pressure measurements. Diabetes was reported by 425 men. Distinct differences were observed in baseline characteristics in individuals with and without diabetes. In the diabetes group, age and hs-CRP were statistically significant whereas in the nondiabetes group, age, hs-CRP, number of tooth extractions, tooth extractions for infections and oral infections combined, nonfasting glucose, systolic blood pressure, total cholesterol, regular alcohol drinking, daily smoking, and level of education were independent risk factors. The number of tooth extractions <5 was inversely related whereas more extractions increased the risk. Multivariate analyses showed that hs-CRP was a significant predictor in persons with diabetes and tooth extractions and oral infections combined; the number of teeth extracted and hs-CRP were for persons without diabetes. Infection and inflammation were associated with mortality in individuals both with and without diabetes.

scholarly journals PREVENTIVE CARDIOLOGY, PRECLINICAL DIAGNOSES: OLD PROBLEMS – NEW APPROACHES

2017 ◽  
Vol 4 (1) ◽  
pp. 5-8
Author(s):  
T.V. Ashcheulova ◽  
O.A Kochubiei O.A ◽  
T.G. Ovrakh
Keyword(s):  
Risk Factors ◽  
Insulin Resistance ◽  
Blood Pressure ◽  
Cardiovascular Disease ◽  
Inflammatory Markers ◽  
C Reactive Protein ◽  
Preventive Cardiology ◽  
Reactive Protein ◽  
Novel Approaches ◽  
New Guidelines

PREVENTIVE CARDIOLOGY, PRECLINICAL DIAGNOSES: OLD PROBLEMS – NEW APPROACHESAshcheulova T.V., Kochubiei O.A., Ovrakh T.GThe article discusses the new Guidelines on cardiovascular disease prevention in clinical practice (2016) which summarized novel approaches of detection of such risk factors as overweigh, obesity, abdominal obesity, smoking, dyslipidemia (cholesterolemia, triglyceridemia), blood pressure (BP) levels, glucose, insulin, insulin resistance, inflammatory markers, such as c-reactive protein, which can be widely used in practice.KeyWords: Cardiovascular disease, preventive cardiology, risk assessment and stratification, strategy for prevention of cardiovascular diseases. ПРЕВЕНТИВНА КАРДІОЛОГІЯ, ДОКЛІНІЧНА ДІАГНОСТИКА: СТАРІ ПРОБЛЕМИ - НОВІ ПІДХОДИАщеулова Т.В., Кочубєй О.А., Оврах Т.Г. У статті розглядаються нові рекомендації з профілактики серцево-судинних захворювань в клінічній практиці (2016 г.), що узагальнюють нові підходи виявлення таких факторів ризику, як надмірна маса тіла, ожиріння, абдомінальне ожиріння, куріння, дисліпідемія (холестеринемія, тригліцеридемія),  артеріальний тиск (АТ), рівень глюкози, інсуліну, резистентність до інсуліну, запальні маркери, такі як С-реактивний білок, які можуть знайти широке застосування у практичній охороні здоров’я.Ключові слова: Серцево-судинні захворювання, профілактична кардіологія, оцінка і стратифікація ризику, стратегія профілактики серцево-судинних захворювань. ПРЕВЕНТИВНАЯ КАРДИОЛОГИЯ, ДОКЛИНИЧЕСКАЯ ДИАГНОСТИКА: СТАРЫЕ ПРОБЛЕМЫ - НОВЫЕ ПОДХОДЫАщеулова Т.В., Кочубей О.А., Оврах Т.Г. В статье рассматриваются новые рекомендации по профилактике сердечно-сосудистых заболеваний в клинической практике (2016 г.), обобщены новые подходы выявления таких факторов риска, как избыточная масса тела, ожирение, абдоминальное ожирение, курение, дислипидемия (холестеринемия, гипертриглицеридемия), повышение артериального давления, уровень глюкозы, инсулина, резистентность к инсулину, маркеры воспаления, такие как С-реактивный белок, которые могут найти широкое применение в практическом здравоохранении.Ключевые слова: сердечно-сосудистые заболевания, профилактическая кардиология, оценка и стратификация риска, стратегия профилактики сердечно-сосудистых заболеваний. 

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