Evaluation of immunosuppression induced by metronidazole in Balb/c mice and human peripheral blood lymphocytes.

Abstract:

:The immunomodulatory effect of metronidazole (MTZ), a nitroimidazole drug used as an antiprotozoal and antibacterial agent, was investigated using Balb/c mice and human peripheral blood lymphocytes. For in vivo studies, mice were divided into six groups, six animals per group, group I received vehicle alone while the other groups (II-VI) received intraperitoneal injections of MTZ (14, 28, 42, 57, and 114 mg/kg) respectively. For in vitro studies different concentrations of MTZ (5, 10, 50, and 200 microg/ml) were used. MTZ showed a significant decrease in the percentage of circulating neutrophils and monocytes and an increase in the percentage of circulating lymphocytes. The relative weights of spleen as well as the relative body weight gain also decreased. Detectable changes were seen in the histology of spleen and thymus. Splenic plaque-forming cells (PFC), hemagglutination (HA) titer to sheep red blood cells (SRBC), spleenocytes and human peripheral blood lymphocytes proliferation (MLR) were markedly suppressed by MTZ treatment as compared to control group. MTZ also induced a significant decrease in delayed-type hypersensitivity (DTH) reaction, phagocytic activity (assessed by phagocytic capacity and phagocytic index) as well as TNF-alpha secretion by peritoneal macrophages. These observations indicate that MTZ significantly induced immunosuppression in mice and in human peripheral blood lymphocytes.

journal_name

Int Immunopharmacol

authors

Fararjeh M,Mohammad MK,Bustanji Y,Alkhatib H,Abdalla S

doi

10.1016/j.intimp.2007.10.018

subject

Has Abstract

pub_date

2008-02-01 00:00:00

pages

341-50

issue

2

eissn

1567-5769

issn

1878-1705

pii

S1567-5769(07)00335-9

journal_volume

8

pub_type

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