Insect iridescent virus type 6 induced toxic degenerative hepatitis in mice
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Abstract
The toxic effect of insect iridescent virus type 6 — chilo iridescent virus — (CIV) was investigated using Balb/c mice (strain ByJ Ico and Kisslegg). The animals were inoculated with CIV intraperitoneally (1×109 to 9.2×1011 TCID50/animal). The animals which were administered with 1×1011 to 9×1011 TCID50 of CIV per animal, developed acute clinical illness and died during 18 to 80 h post infection. Histopathological and electronmicroscopic examinations of the liver tissues of those animals which died and/or were sacrificed when moribund showed acute degenerative hepatitis leading to death. No evidence for viral replication was found in the liver cells affected. A mortality rate between 21.1% and 100% was recorded for CIV, depending on the strain and number of mice used and the dose of virus administered. The toxic effect of CIV was eliminated or reduced extensively using heat denaturation or treatment of CIV with sodium dodecylsulphate or proteinase K. This indicates that the nature of the factor causing toxic degenerative cell damage is a protein.
Keywords
Sodium Hepatitis Mortality Rate Liver Cell Toxic EffectPreview
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