Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

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Miller, J.M. et al.

Experimentally induced infectious bovine rhinotracheitis virus infection during early pregnancy: effect on the bovine corpus luteum and conceptus.

Pairs of heifers were inoculated IV with infectious bovine rhinotracheitis virus on postbreeding days (PBD) 7, 14, 21, or 28, and were euthanatized 13 to 15 days after inoculation. Reproductive tracts were examined for cytopathologic changes (light microscopy), virus (cell culture), and viral antigen (immunohistochemical evaluation). Heifers inoculated on PBD 7 or 14 had mild oophoritis characterized by foci of necrosis and mononuclear cell accumulations in the corpus luteum. Most of these heifers also had a few necrotic follicles in at least one ovary. Heifers inoculated on PBD 21 or 28 did not have corpus luteum lesions, but necrotic follicles were numerous in both ovaries. Viral antigen was observed in all ovarian lesions, and infectious virus was isolated from a few of the affected tissues. The uteri of all heifers inoculated on PBD 21 or 28 and 1 heifer inoculated on PBD 7 contained normal-appearing concepti. The uterus of the other PBD 7 heifer contained a degenerating conceptus that was infected with infectious bovine rhinotracheitis virus, as determined by viral isolation, immunohistochemical evaluation, and electron microscopy. Heifers inoculated on PBD 14 were not pregnant at necropsy, but histologic evidence was found that the postbreeding estrous cycle had been longer than normal, indicating that early embryonic death had occurred.[1]

References

Experimentally induced infectious bovine rhinotracheitis virus infection during early pregnancy: effect on the bovine corpus luteum and conceptus. Miller, J.M., Van der Maaten, M.J. Am. J. Vet. Res. (1986) [Pubmed]

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