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Association of genetic markers with coronary heart disease (myocardial infarction)--a case-control study
P Golabi1, G K Kshatriya, A K Kapoor
1Department of Anthropology, University of Delhi.
Insights
Haptoglobin (Hp) gene polymorphism is significantly associated with myocardial infarction risk. Transferrin (Tf) and complement component 3 (C3) gene variations showed no significant link in this case-control study.
Area of Science:
- Genetics
- Cardiology
- Biochemistry
Background:
- Myocardial infarction (MI) is a leading cause of mortality worldwide.
- Genetic factors play a role in MI susceptibility.
- Polymorphisms in haptoglobin (Hp), transferrin (Tf), and complement component 3 (C3) are potential biomarkers.
Purpose of the Study:
- To investigate the association between Hp, Tf, and C3 gene polymorphisms and myocardial infarction.
- To identify potential genetic markers for MI risk.
Main Methods:
- A case-control study was conducted on myocardial infarction patients and healthy controls.
- Genotyping for Hp, Tf, and C3 polymorphisms was performed.
- Allele and genotype frequencies were compared between cases and controls using statistical analysis.
Main Results:
- The frequency of the Hp1 allele was significantly higher in MI cases (0.159) compared to controls (0.058) (chi 2 = 21.88, p < 0.01).
- No statistically significant differences were observed in the frequencies of TfC and C3 gene polymorphisms between MI cases and controls.
- Hp polymorphism demonstrated a significant association with myocardial infarction.
Conclusions:
- Haptoglobin (Hp) gene polymorphism is a significant risk factor for myocardial infarction.
- Tf and C3 gene polymorphisms are not significantly associated with MI in the studied population.
- Hp polymorphism may serve as a potential genetic marker for predicting MI risk.
Abstract:
A case-control study was carried out on patients of myocardial infarction selected from coronary care unit of Lok Nayak Jai Prakash Narayan Hospital, Delhi. The study was carried out to determine the association of haptoglobin (Hp), transferrin (Tf) and complement component 3 (C3) polymorphism with myocardial infarction. The frequency of allele Hp1 was found to be 0.159 in cases studied and 0.058 in controls. The frequency of gene TfC was found to be 0.987 in cases of study and 0.992 in controls. Similarly, frequency of CS3 gene was found to be 0.985 and 0.990 in cases studied and controls respectively. The comparison between cases studied and controls with respect to TfC and CS3 polymorphism was found to be statistically non-significant while the comparison between cases studied and controls for Hp polymorphism was found to be statistically significant (chi 2 = 21.88, p < 0.01).