Posterior paralysis in pigs due to Haemophilus pleuropneumoniae infection.
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Animals↗
Biomedical subjects
M Isoda
Publications and source records attributed to M Isoda.
Polycystic immature teratoma observed at the head of Meckel's diverticulum of a chick.
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Animals↗
The Mann-Williamson ulcer as a model for testing antiulcer drugs. Results obtained with gefarnate.
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Animals↗
[Acute nonbacterial meningitis with papillary edema--pathogenetic observation of benign intracranial hypertension].
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Acute Disease↗
The influence of celomic membranes and a tunnel between celomic cavities on cancer metastasis in poultry.
The roles of celomic membranes and celomic structures in preventing cancer metastasis were examined. The relationship between a tunnel in the peritoneal cavity of hens and the cancer metastasis was also investigated. A tunnel between the right and left dorsal hepatic cavities was found in almost half of healthy hens. The tunnel was also found in 17% of hens with cancer. Neoplastic cells were detected in the ascitic fluid of 79% of hens with effusions. Metastasis was most severe in the intestinal peritoneal and left dorsal hepatic cavities, whereas the right dorsal hepatic cavity showed the least involvement. Severe inflammatory responses were found within the metastatic membranes, resulting in an increase in their thickness. In tumor-bearing hens, crevasse-like splits were present within the membranes at the layers of loose connective tissues. It appears that the splits prevent further invasion by the cancer cells. There were no successful lesions on the inner surfaces of air sacs. It is suggested that the tunnel in the peritoneal cavity enhances cancer metastasis. We also conclude that the celomic membranes and their structure in hens retard the spread of cancer by functioning as a barrier against direct spread of the cancer cells.
Animals↗
Estradiol receptors and ovalbumin in adenocarcinoma of hens.
The origin of adenocarcinomas in 10 hens was studied using an assay for estradiol receptors (ERs) and ovalbumin. ERs were found in nine tumors, and ovalbumin was present in eight tumors. Hormonal regulation of this cancer is indicated, and it is suggested that the origin of the tumor is probably the glands of the oviduct.
Adenocarcinoma↗
A study on the origin of adenocarcinoma in fowls using immunohistological technique.
When tumor tissues collected from 12 hens suffering from so-called adenocarcinoma were stained with antisera by the indirect immunofluorescent method, all of the tissues appeared to contain ovalbumin. We suggest that most adenocarcinomas in the thoracoabdomen of mature hens are oviductal in origin.
Abdominal Neoplasms↗