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Korean Journal of Preventive Medicine 2001;34(2): 127-130.
Separate and Combined Effect of Cadmium and Nickel on Blood Pressure in Rats.
Seung Jun Wang, Bong Suk Cha
Department of Occupational and Environmental Health, School of Public Health, Seoul National University.
ABSTRACT
OBJECTIVE: To verify the separate and combined effects of cadmium and nickel on blood pressure in rats. METHODS: Following the daily administration of cadmium chloride(CdCl2) and nickel chloride(NiCl2) to rats both individually and in combination with intraperitoneal injection method for one week, systolic blood pressure of the tail was measured at 1 day and 5, 10, 20, 30 days after administration. Each substance was injected into the rats with 0.1 mg/kg bw and 1.0 mg/kg bw concentration. RESULTS: After 0.1 mg/kg bw CdCl2 was injected, a statistically significant difference was found as compared with the control group(only saline) after 1, 5 and 10 days. After 0.1 mg/kg bw NiCl2 was injected, a statistically significant difference was not found compared with the control group. After 0.1 mg/kg bw CdCl2 and 0.1 mg/kg bw NiCl2 were injected simultaneously, a statistically significant difference was found as compared with the control group after 1, 5 and 10 days and compared with 0.1 mg/kg bw CdCl2 group after 5 days and as compared with 0.1 mg/kg bw NiCl2 group after 5 and 10 days. After 1.0 mg/kg bw CdCl2 was injected, a statistically significant difference was found as compared with the control group after 1, 5, 10 and 20 days. After 1.0 mg/kg bw NiCl2 was injected, a statistically significant difference was found as compared with the control group after 1 day and 5 days. After 1.0 mg/kg bw CdCl2 and 1.0 mg/kg bw NiCl2 were injected in combination, a statistically significant difference was found after 1, 5, 10, 20 and 30 days as compared with 1.0 mg/kg bw CdCl2 after 10, 20 and 30 days and as compared with 1.0 mg/kg bw NiCl2 after 5, 10, 20 and 30 days. CONCLUSION: It was found that the effect of CdCl2 on blood pressure was much more than NiCl2 and a high concentration CdCl2 and NiCl2 in combination delayed the recovery of blood pressure.
Key words: Cadmium; Nickel; Blood pressure
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