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Abstract

Familial hypercholesterolemia (FH) is an autosomal dominant lipid metabolic condition that affects people from birth. Low-density lipoprotein cholesterol (LDL-C) levels are extremely high. Patients with familial hypercholesterolemia and hypercholesterolemia have a nearly two-fold increased risk of developing cardiovascular disease (CVD). LRP-1 serves as a scavenger receptor, a regulatory receptor, and a scaffold receptor. A total of 150 blood samples were taken from people, with 50 of them being patients with familial hypercholesterolemia, non-familial hypercholesterolemia, and healthy control subjects. This study aimed to measure gene expression for LRP-1 gene and mir-205 and indicating their relationship to the development of cardiovascular disease in familial hypercholesterolemia and non-familial hypercholesterolemia. Also, screening for familial hypercholesterolemia and its connection cardiovascular disease using mir-205 as a biomarker specific and sensitive for the LRP-1 gene was done. The expression of LRP-1 and mir-205 in whole blood was estimated using reverse transcriptase quantitative real time polymerase chain reaction. The results showed that the expression of LRP-1 in the fold of gene expression in F.H patients' group was lower than that of healthy group, while the expression of mir-205 in the fold of gene expression in F.H patients' group was 14 time higher than that of healthy group. The results also showed low LRP-1 expression is present in familial hypercholesterolemia and non-familial hypercholesterolemia. The familial hypercholesterolemia group was associated with the lowest expression of LRP-1 and followed by the non-familial hypercholesterolemia. This reflects an increased susceptibility to cardiovascular disease. overexpression of mir-205 is found in familial hypercholesterolemia and non-familial hypercholesterolemia. The familial hypercholesterolemia group was associated with the highest expression of mir-205 and followed by the non-familial hypercholesterolemia. This reflects that mir-205 is overexpressed in the cardiovascular system, suppressing LRP1 translation and thereby lowering LRP1 protein levels.

Keywords

Hypercholesterolemia LRP-1 gene Mir-205 Gene expression RT-PCR.

Article Details

How to Cite
GHAREEB, Z. A., AL-KHAFAJI, H. M. A.-H., & AL-SAEDI, M. K. A. (2021). Low-density lipoprotein receptor-related protein-1 and mir-205 expression for cardiovascular disease in familial hypercholesterolemia and non-familial hypercholesterolemia in Iraqi population. Iranian Journal of Ichthyology, 8, 246–254. Retrieved from https://ijichthyol.org/index.php/iji/article/view/690

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