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High-sensitivity C-reactive protein: a novel cardiovascular risk predictor in type 2 diabetics with normal lipid
Shilpa B Asegaonkar1, Amruta Marathe, Mangesh L Tekade
1Department of Biochemistry, Government Medical College, Aurangabad, Maharashtra, India. b_asegaonkar@yahoo.com
Insights
High-sensitivity C-reactive protein (hs-CRP) is an independent predictor of cardiac risk in type 2 diabetes patients with normal lipid profiles. Elevated hs-CRP levels indicate increased cardiovascular risk, even without dyslipidemia.
Area of Science:
- Cardiology
- Endocrinology
- Biochemistry
Background:
- India has the highest prevalence of diabetes globally, with coronary heart disease being a leading cause of mortality among diabetic patients.
- Type 2 diabetes mellitus and atherosclerosis share common inflammatory pathways.
- High-sensitivity C-reactive protein (hs-CRP) is a marker of inflammation and a potential predictor of cardiac risk.
Purpose of the Study:
- To investigate the role of hs-CRP as an independent cardiovascular risk marker in Indian patients with type 2 diabetes and normal lipid profiles.
Main Methods:
- A case-control study was conducted with 60 type 2 diabetic patients (normal lipid profile) and 60 healthy controls.
- Fasting blood samples were analyzed for hs-CRP and lipid profiles.
- Unpaired t-test was used for statistical analysis.
Main Results:
- Diabetic patients exhibited significantly higher hs-CRP levels (4.8 ± 0.2) compared to controls (0.9 ± 0.1).
- A substantial proportion of diabetic patients were categorized into moderate-risk (1-3 mg/l) and high-risk (>3 mg/l) hs-CRP groups.
- The odds ratio for cardiac risk was 10.23, indicating a significant association.
Conclusions:
- hs-CRP serves as an independent predictor of cardiac risk in type 2 diabetes, even with a normal lipid profile.
- Measuring hs-CRP can provide additional risk stratification for cardiovascular events.
- Patients identified as intermediate or high risk based on hs-CRP may benefit from lifestyle interventions to prevent cardiovascular events.
Background:
India is the diabetic capital of the world. Coronary heart disease is a major cause of morbidity and mortality among diabetics. Type 2 diabetes mellitus and atherosclerosis are complex diseases sharing common antecedents like inflammation. High-sensitivity C-reactive protein (hs-CRP), an acute phase reactant protein, is a proinflammatory atherogenic circulating marker which can prove to be an independent cardiac risk predictor.
Aim:
The aim of the present study was to evaluate the role of hs-CRP as an independent cardiovascular risk marker among Indians with type 2 diabetes with normal lipid profile.
Settings And Design:
This was a case control study including 60 type 2 diabetics with normal lipid profile and 60 age- and sex-matched healthy controls.
Materials And Methods:
Twelve-hour fasting blood samples were collected from all the participants. Serum was assayed for hs-CRP and lipid profile.
Statistical Analysis:
Results were analyzed by unpaired t test.
Results:
We found elevated hs-CRP levels (4.8 ± 0.2, P < .0001) among cases compared to controls (0.9 ± 0.1). According to hs-CRP levels, seven cases were in the low-risk (< 1 mg/l), 32 in the moderate-risk (1-3 mg/l), and 21 in the high-risk (3-10 mg/l) group with mean values of hs-CRP of 0.7 ± 0.2, 1.75 ± 0.7, and 5.8 ± 1.4, respectively. Relative risk was 4.75 with odds ratio of 10.23 (95% confidence interval 8.8-11.23).
Conclusion:
The study suggests that hs-CRP is an independent cardiac risk predictor even with normal lipid profile and can help measure additional risk. The American Heart Association stated that patients in the intermediate- and high-risk group may benefit from therapeutic lifestyle change and that cardiovascular event may be prevented.
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