A plant polyphenol-rich extract restores the suppressed functions of phagocytes in influenza virus-infected mice (Record no. 44935)

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control field 20250625140636.0
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Transcribing agency CICY
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Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-10703
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245 10 - TITLE STATEMENT
Title A plant polyphenol-rich extract restores the suppressed functions of phagocytes in influenza virus-infected mice
490 0# - SERIES STATEMENT
Volume/sequential designation Microbes and Infection, 7(3), p.391-398, 2005
520 3# - SUMMARY, ETC.
Summary, etc. Influenza infection was induced in white ICR mice by intranasal (i.n.)inoculation of the virus A/Aichi/2/68 (H3N2). The number, migration and phagocyte indices of alveolar and peritoneal macrophages (pMØ)and of blood polymorphonuclear leukocytes (PMNs), as well as the inhibition of the PMN adherence in the presence of a specific antigen were followed for 9 days after infection. The effect of the i.n. application of a polyphenol-rich extract, designated as polyphenolic complex (PC), isolated from the medicinal plant Geranium sanguineum L., on the inspected immune parameters was studied in parallel with the virological parameters of the infection, e.g. rate of mortality, mean survival time (MST), infectious lung virus titre and consolidation of the lungs. It was found that the application of PC induced a continuous 2- to 2.5-fold rise in the number of both peritoneal and alveolar macrophages (aMØ)in the infected and healthy controls. The migration of both peritoneal and aMØ increased 1.5- to 2-fold in the group of infected PC-treated animals and four to fivefold in the control group, the maximum being on day 9. PC stimulated phagocyte activities of blood PMNs in both infected and healthy mice. The leukocyte adherence inhibition (LAI)index decreased in the infected and PC-treated animals. The restoration of the suppressed functions of phagocytes in influenza virus-infected mice (VIM)was consistent with a prolongation of MST and reduction in mortality rate, infectious virus titre and lung consolidation. The immunoenhancing properties of PC apparently contribute to the overall protective effect of the plant preparation in the lethal murine experimental influenza A/Aichi infection.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element INFLUENZA VIRUS INFECTION
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PLANT POLYPHENOLS
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element MACROPHAGES
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PHAGOCYTOSIS
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Ivanova, E.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Toshkova, R.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Serkedjieva, J.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1zkWaLqJaeLhWHuArDsWqrYWVjq0VquxD/view?usp=drivesdk">https://drive.google.com/file/d/1zkWaLqJaeLhWHuArDsWqrYWVjq0VquxD/view?usp=drivesdk</a>
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