INVESTIGATION OF BLOOD HOMOCYSTEINE CONCENTRATION TYPE II DIABETES WITH HYPERTENSION

Trần Thành Vinh1,, Nguyễn Thị Huệ2, Trần Thiện Trung3
1 Cho Ray Hospital
2 University of Medicine and Pharmacy at Ho Chi Minh City
3 University Medical Center Ho Chi Minh City branch 2

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Abstract

Background: Preventing hypertension in patients with type 2 diabetes is essential which helps to reduce cardiovascular complications. Homocysteine is known as an independent risk factor for cardiovascular diseases. Increased homocysteine concentration ​​in the blood leads to metabolic disorders, damaged endothelial cells, dysfunction of vascular walls, and hypertension. Aims: This study aims to investigate the blood homocysteine concentration and analyze the correlation with blood pressure in patients with type 2 diabetes, then determine the diagnostic value of blood homocysteine concentration in predicting hypertension in patients with type 2 diabetes. Objective and methods: A cross-sectional study and analytic was performed on 175 type 2 diabetes patients in the outpatient department at the Endocrine Clinic - Cho Ray Hospital from January 2022 to June 2022, and was divided into 2 groups: type 2 diabetes with hypertension including 86 patients and type 2 diabetes without hypertension included 89 patients. Results: The median value of homocysteine in type 2 diabetes with hypertension (13.3 µmol/l) was higher than in subjects without hypertension. Besides, the increased concentration of homocysteine were observed in the high level of blood pressure: non-hypertension, isolated systolic hypertension, grade 1 hypertension, grade 2 hypertension, grade 3 hypertension (9.7µmol/l, 10.3µmol/l, 13.3µmol/l, 16.5µmol/l, and 18.96 µmol/l, respectively). Moreover, a moderate correlation between homocysteine concentration and systolic blood pressure (r=0.467, p<0.001) and diastolic blood pressure (r=0.473, p<0.001) was observed. Notably, the blood homocysteine concentration may serve as a diagnostic marker for hypertension in type 2 diabetes with a cut-off point of 10.68µmol/L, 73.3% sensitivity, 62.9% specificity, and AUC  value of 0.74 (95%CI: 0.67 – 0.81). Conclusion: The blood homocysteine concentration in type 2 diabetes with hypertension was higher than those without hypertension and correlated with blood pressure. Besides, the blood homocysteine concentration may serve as a diagnostic marker for hypertension in patients with type 2 diabetes. 

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References

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