Value of the synovial C-reactive protein test in the diagnosis of total hip and knee periprosthetic joint infections: a case-control study

Introduction: C-reactive protein (CRP) is a member of the class of acute phase reactants as itslevel rises dramatically during inflammatory processes occurring in the body. Measuring and chartingCRP values can prove useful in determining the disease progress. Aim: To estimate the CRP level inCerebrospinal fluid (CSF) of patients with meningitis; and to evaluate whether CRP levels could beused to differentiate the various types of meningitis in adults. Materials and Methods: This studywas a case-control study. 80 enrolled patients were subjected to a protocol that included detailedclinical history including duration of illness, symptoms and signs, history or any treatment history.Written informed consent was taken from the patients/guardian. Results: Meningitis was morecommon in the 18-30 years age group. Mean values of CSF CRP were- viral meningitis (2.70 mg/L)and pyogenic meningitis (91.13 mg/L) and control group (1.54 mg/L). CSF CRP can be used as adiagnostic tool to differentiate between pyogenic and viral meningitis as it is significantly raised inpyogenic meningitis in comparison to viral meningitis (p-value <0.0001). Conclusion: CRP in CSF isa valuable, rapid, bedside diagnostic test for differentiating between pyogenic and viral meningitis;with reasonably good sensitivity, specificity and positive predictive value. The absence of CRP in CSFrather than its presence is more important for the diagnosis of viral meningitis.

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C-reactive protein gene 1846C>T polymorphism is associated with increased risk and clinical features of lung cancer: a case–control study

Bioscience Reports ◽

10.1042/bsr20181936 ◽

2019 ◽

Vol 39 (6) ◽

Cited By ~ 2

Author(s):

Chen Chen ◽

Jing-Ni Liu ◽

Jian-Qiang Zhao ◽

Bao Zang

Keyword(s):

Lung Cancer ◽

Case Control Study ◽

Case Control ◽

Lung Carcinogenesis ◽

C Reactive Protein ◽

Chinese Han ◽

Reactive Protein ◽

Potential Marker ◽

Increased Risk ◽

Control Study

AbstractChronic inflammation plays an important role in lung carcinogenesis. Recently, several studies investigated the association of C-reactive protein (CRP) gene 1846C>T polymorphism and lung cancer (LC) risk, but with conflicting findings. In the present study, we conducted this case–control study with 408 LC patients and 472 healthy controls in a Chinese Han population. Genotyping was performed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLR) method. Our data found that CRP gene 1846C>T polymorphism increased the risk of LC. Subgroup analyses obtained significant associations among the groups of males, ≥50 years old, smoking, and non-drinkers. Bioinformatics analysis showed that the expression levels of CRP in LC tissues were significantly increased compared with normal tissues. Additionally, the present study found CRP mRNA high expression was associated with worse survival in LC patients. Furthermore, our data indicated that TT genotype of 1846C>T polymorphism was associated with a larger size of tumor and was related with lymphatic metastasis in LC patients. In conclusion, the present study suggests that CRP gene 1846C>T polymorphism is associated with increased risk of LC. CRP gene 1846C>T polymorphism may be a potential marker for the diagnosis of LC.

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