Electro-microscopic observations of liver lesions after intravenous inoculation of mouldy hay extracts
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Abstract:
With the aid of the electron microscope, a number of histopathological changes in the liver of mice caused by mycotoxins from mouldy hay were examined and studied. These changes were observed in the mitochondria, the cell nucleus, and the cell membranes, and included fatty and parenchymal degeneration, plasma granulation, vacuolisation and vesiculation, glycogen secretion, incorporation into RNA, karyolysis and karyolaxis, and space of Disse constriction.
Insights
Mycotoxins from mouldy hay cause liver damage in mice, affecting cellular structures like mitochondria and nuclei. Electron microscopy revealed significant histopathological changes, including degeneration and altered cell membranes.
Area of Science:
- Hepatopathology
- Toxicology
- Cell Biology
Background:
- Mycotoxins are toxic secondary metabolites produced by fungi.
- Mouldy hay can harbor toxigenic fungi, posing a risk to animal health.
- Liver damage is a common consequence of mycotoxin exposure.
Purpose of the Study:
- To investigate the histopathological liver changes induced by mycotoxins from mouldy hay in mice.
- To characterize cellular alterations at the ultrastructural level using electron microscopy.
Main Methods:
- Electron microscopy was employed to examine liver tissues from mice exposed to mycotoxins.
- Histopathological analysis focused on cellular organelles including mitochondria, nucleus, and cell membranes.
Main Results:
- Observed changes included fatty and parenchymal degeneration.
- Alterations in mitochondria and cell nuclei were noted, such as vacuolisation, vesiculation, karyolysis, and karyolaxis.
- Changes in cell membranes and the space of Disse were also documented.
Conclusions:
- Mycotoxins in mouldy hay induce significant and diverse histopathological changes in the mouse liver.
- Electron microscopy is crucial for detailing the cellular mechanisms of mycotoxin-induced hepatotoxicity.