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International Journal of Medicinal Mushrooms

Publication de 12  numéros par an

ISSN Imprimer: 1521-9437

ISSN En ligne: 1940-4344

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.2 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00066 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.34 SJR: 0.274 SNIP: 0.41 CiteScore™:: 2.8 H-Index: 37

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Antitumor Polysaccharides from Edible and Medicinal Mushrooms and Immunomodulating Action Against Murine Macrophages

Volume 3, Numéro 4, 2001, 6 pages
DOI: 10.1615/IntJMedMushr.v3.i4.70
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RÉSUMÉ

The immunomodulating action of an antitumor polysaccharide, lentinan, from Lentinus edodes was investigated in peritoneal maerophages of female BALB/c mice. First, the relationship between lentinan content, as measured by enzyme-linked immunosorbent assay (ELISA). and the effects on the production of tumor necrosis factor-α (TNF-α) and nitric oxide (NO) during storage was examined. When the mushrooms were stored at low temperature, the contents of their ami tumor polysaccharides and the production levels of TNF-α and NO showed hardly any changes. However, polysaccharide content and cytokine production decreased markedly at higher temperature (20°C). These results suggest that low-temperature storage is more effective in maintaining levels of antitumor polysaccharides and the quality of the mushrooms as the health-beneficient food. Next, the mechanism of cytokine production in murine macrophages stimulated with purified lentinan was examined. The results of time course experiments on the production of TNF-α and NO indicated that TNF-α was produced 12 h earlier than NO. An anti-TNF-α antibody inhibited completely NO production when added simultaneously with purified lentinan to macrophages. NOC-18 (NO donor) itself did not increase levels of TNF-α production. Moreover, simultaneous treatment with L-N-monomethylarginine (NO synthase inhibitor) and lentinan did not affect lentinan-induced production of TNF-α. The NO from macrophages was produced by an autocrine pathway through production of TNF-α.

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