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Cadmium is one of a heavy metal which widely used in human life, especially in the electroplating industry and a mixture of textile materials. Cadmium that enters the body binds to the metallothioneins protein. It can increase the formation of free radical compounds, there by inhibiting enzyme activity such as nitric oxide synthase3. This gene regulates the expression of endothelial nitric oxide synthase which produce a nitric oxide. Nitric oxide role in regulated blood pressure as vasodilator with Angiotensin II as vasoconstriction. The susceptibility to Cd exposure will elevate if the polymorphisms of gene is found in population. The aim of this research was to know effect of cadmium to gene NOS3 polymorphisms on NO, systolic and diastolic blood pressure and antioxidant enzyme in Cd-exposed individual. The genotype individual were detected by Polymerase Chain Reaction-Restriction Fragment Length Polymorphisms (PCR-RLFP) with MBo1 restriction enzyme. Parameter recorded were blood Cd , NO level, SOD, systolic and diastolic. Data were analyzed by independent t-test. These result showed that 20% of 40 individual of cases subject were detected as polymorphisms individual of NOS3gene, with GA genotype. Their fragment DNA located on 206 bp, 119 bp and 87 bp, but non polymorphisms of NO gene is only located on 206 bp. The result show cadmium could influence polymorphisms NOS3gene and decrease NO production followed by increasing of blood pressure both systolic and diastolic. Cadmium also decrease antioxidant enzyme SOD and GPx level.

Effect of Cadmium Exposure in Polymorphisms Gene NOS3, Blood Cadmium Level, Nitric Oxide Level, Blood Pressure and Antioxidant Enzymes