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Abstract Title:

[Damage on lung and systemic inflammation induced by nickel sulfate intracheal instillation in rats].

Abstract Source:

Wei Sheng Yan Jiu. 2009 May;38(3):269-72. PMID: 19548562

Abstract Author(s):

Furong Deng, Xinbiao Guo, Pingping Xia, Hong Liu

Article Affiliation:

Department of Occupational&Environmental Health Science, School of Public Health, Peking University, Beijing 100191, China. frdeng@yahoo.com.cn

Abstract:

OBJECTIVE: To investigate the acute toxic effects induced by nickel sulfate (NiSO4) in order to clarify the possible role of nickel in PM2.5. METHODS: Twenty-eight male Wistar rats were divided into four groups, NiSO4 was administered by intratracheal instillation at the doses of Ni 0, 7.5, 75 and 750 microg/kg for 24h respectively. The rats were sacrificed and brochoalveolar lavage fluid (BALF) were collected and analyzed to estimate the injury (total protein (TP) and lactate dehydrogenase (LDH)) and inflammation of lung. Blood were collected and parameters of inflammation (total cell numbers, interleukin-6 (IL-6), tumor necrosis factor (TNF-alpha)) and CRP were measured. The nickel levels in the blood were also determined. RESULTS: NiSO4 induced significant increases of leukocytes, neuprophil, TP contents and LDH avtivity in BALF (P<0.05, P<0.01). The level of TNF-alpha and IL-6 in BALF of NiSO4-treated rats increased significantly compared with those of the control group (P<0.05). The level of TNF-alpha in blood of NiSO4-treated rats increased significantly compared with the control group. Concentrations of CRP in the serum were more higher in NiSO4-treated rats than the control group, but statistical significances were only seen in the highest dosage group (Ni 750 microg/kg). Nickel in serum of NiSO4-treated rats increased significantly in a dose-dependent manner. CONCLUSION: NiSO4 induced pulmonary and systemic inflammation effects in rats, suggested that NiSO4 may play an important role in the acute effects of PM2.5.

Study Type : Animal Study

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