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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Antimicrob+Agents+Chemother
1997 ; 41
(3
): 551-6
Nephropedia Template TP
gab.com Text
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English Wikipedia
Glycyrrhizin, an active component of licorice roots, reduces morbidity and
mortality of mice infected with lethal doses of influenza virus
#MMPMID9055991
Utsunomiya T
; Kobayashi M
; Pollard RB
; Suzuki F
Antimicrob Agents Chemother
1997[Mar]; 41
(3
): 551-6
PMID9055991
show ga
The antiviral effect of glycyrrhizin (GR), an active component of licorice roots,
was investigated in mice infected with influenza virus A2 (H2N2). When mice that
had been exposed to 10 50% lethal doses of the virus were treated
intraperitoneally with 10 mg of GR per kg of body weight 1 day before infection
and 1 and 4 days postinfection, all of the mice survived over the 21-day
experimental period. At the end of this period, the mean survival time (in days)
for control mice treated with saline was 10.5 days, and there were no survivors.
The grade of pulmonary consolidations and the virus titers in the lung tissues of
infected mice treated with GR were significantly lower than those in the lung
tissues of infected mice treated with saline. GR did not show any effects on the
viability or replication of influenza virus A2 in vitro. When splenic T cells
from GR-treated mice were adoptively transferred to mice exposed to influenza
virus, 100% of the recipients survived, compared to 0% survival for recipient
mice inoculated with naive T cells or splenic B cells and macrophages from
GR-treated mice. In addition, the antiviral activities of GR on influenza virus
infection in mice were not demonstrated when it was administered to infected mice
in combination with anti-gamma interferon (anti-IFN-gamma) monoclonal antibody.
These results suggest that GR may protect mice exposed to a lethal amount of
influenza virus through the stimulation of IFN-gamma production by T cells,
because T cells have been shown to be producer cells of IFN-gamma stimulated with
the compound.
|*Influenza A virus
[MESH]
|Adoptive Transfer
[MESH]
|Animals
[MESH]
|Antiviral Agents/*therapeutic use
[MESH]
|B-Lymphocytes/immunology/virology
[MESH]
|Cells, Cultured
[MESH]
|Glycyrrhetinic Acid/*analogs & derivatives/therapeutic use
[MESH]