title: Variation of systolic blood pressure in rats exposed to cadmium and nickel.
abstract: This research was intended to verify separate and combined effects of cadmium and nickel on blood pressure in rats. After cadmium chloride (CdCl(2)) and nickel chloride (NiCl(2)) were administered individually and combined by intraperitoneal injection to rats daily for a week, systolic blood pressure of the tails were measured at 1, 5, 10, 20, and 30 days after administration. Each substance was injected into rats with 0.1 mg/kg x bw and 1.0 mg/kg x bw concentrations. After 0.1 mg/kg x bw CdCl(2) was injected, statistically significant differences from the control group (only saline) were found at 1, 5, and 10 days. After 0.1 mg/kg x bw NiCl(2) was injected, no statistically significant differences from the control group were found. After 0.1 mg/kg x bw CdCl(2) and 0.1 mg/kg x bw NiCl(2) were injected combined simultaneously, statistically significant differences from the control group were found at 1, 5, and 10 days, compared with the 0.1 mg/kg x bw CdCl(2) group after 5 days and the 0.1 mg/kg x bw NiCl(2) group after 5 and 10 days. After 1.0 mg/kg x bw CdCl(2) was injected, statistically significant differences from the control group were found at 1, 5, 10, and 20 days. After 1.0 mg/kg x bw NiCl(2) was injected, statistically significant differences from the control group were found at 1 and 5 days. After 1.0 mg/kg x bw CdCl(2) and 1.0 mg/kg x bw NiCl(2) were injected combined, statistically significant differences were found at 1, 5, 10, 20, and 30 days, compared with 1.0 mg/kg x bw CdCl(2) at 10, 20, and 30 days and 1.0 mg/kg x bw NiCl(2) at 5, 10, 20, and 30 days. It was found that the effect of CdCl(2) on blood pressure was much more than that of NiCl(2) and the combination of CdCl(2) and NiCl(2) in high concentration delayed recovery of blood pressure.
authors.affiliation: Department of Occupational and Environmental Health, School of Public Health, Seoul National University, 28 Yongon-Dong, Chongno-Gu, Seoul, 110-799, Republic of Korea.
authors.forename: Seung-jun
authors.initials: SJ
authors.lastname: Wang
authors.forename: Do-myung
authors.initials: DM
authors.lastname: Paek
authors.forename: Rok-ho
authors.initials: RH
authors.lastname: Kim
authors.forename: Bong-suk
authors.initials: BS
authors.lastname: Cha
mesh_terms: D000818:Animals; D001794:Blood Pressure / Q000187:drug effects*; D002104:Cadmium / Q000009:adverse effects*; D004305:Dose-Response Relationship, Drug; D004347:Drug Interactions; D007274:Injections, Intraperitoneal; D008297:Male; D009532:Nickel / Q000009:adverse effects*; D051381:Rats; D017207:Rats, Sprague-Dawley
chemical_list: D002104:Cadmium; D009532:Nickel