期刊
JOURNAL OF ETHNOPHARMACOLOGY
卷 128, 期 2, 页码 490-494出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.jep.2010.01.015
关键词
Nelumbo nucifera; Rhizome; Seed; Immunomodulation; Leukocyte count; DTH; NBT; Phagocytosis
资金
- Council for Scientific and Industrial Research (CSIR), Govt. of India [19/96(0531)2K8-EMR-I, 2008]
Ethnopharmacological relevance. Nelumbo nucifera Gaertn.(Nymphaeaceae) is a well-known aquatic plant which has been used for the treatment of several disorders including skin disease, cough, inflammation, fever and many other disorders Aim of the study To explore the immunomodulatory activity of extract of rhizome (NNRE) and seed (NNSE) of the plant Materials and methods. The immunomodulatory activity of NNRE and NNSE was evaluated using various in vivo models including the total and differential leukocyte count (TLC and DLC), rutroblue-tetrazolium reduction (NBT) test, neutrophil adhesion test, phagocytic response and delayed type hypersensitivity (DTH) reaction. Sheep red blood cells (SRBC, 5 x 10(9) cells/ml) were used to immunize the animals NNRE and NNSE at the doses of 100 and 300 mg/kg were administrated Result The TLC and lymphocyte count increased significantly but the neutrophil count was decreased for NNRE and NNSE treated groups compared to the control. A dose-dependent potentiation of DTH reaction induced by SRBC was observed from the extracts The percentage of neutrophil adhesion to the nylon fiber was increased in NNRE treated groups (63 22 and 62 91%) compared to the NNSE treated group (54 86 and 54 23%). A potential phagocytic response was seen on treatment of the extracts, and significant changes were observed in the formation of formazone crystals Conclusion This finding suggests that the extract of rhizome and seed Nelumbo nucifera stimulate defense system by modulating several immunological parameters. (C) 2010 Elsevier Ireland Ltd. All rights reserved
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