Biomedical subjects

T Kaneda

Publications and source records attributed to T Kaneda.

311 records · Page 18Linked to original sources

PubMedDate not supplied

Necrosis of the small intestine after resection of an abdominal aortic aneurysm.

Small bowel infarction following abdominal aortic reconstruction is extremely rare, and the prognosis remains poor. This report describes a 65-year-old man with small bowel infarction after resection of an abdominal aortic aneurysm. He was successfully treated with resection of the ischemic segment from the distal duodenum to the mid-small bowel and construction of a duodenoileostomy. The postoperative course was uneventful.

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PubMedDate not supplied

Effects of gamma-ray irradiation on superoxide dismutase activity and lipid peroxide level in mouse salivary glands.

The effect of local gamma-ray irradiation on the enzymatic activity of superoxide dismutase in salivary glands was examined. Mice received a single dose of 60Co gamma-ray irradiation in the range of 3 to 24 Gy to their neck regions. The enzymatic activity in salivary glands was decreased significantly at the 7th day and almost recovered at the 14th day after irradiation with over 6 Gy. The elevation of the lipid peroxide levels in the submandibular gland followed by the leakage of superoxide dismutase from the glands into the blood plasma was observed after irradiation, indicating radiation-induced membrane damage of salivary glands.

Animals↗

PubMedDate not supplied

Microbiological evaluation of a newly designed dental air-turbine handpiece for anti-cross contaminations.

The effectiveness of a newly developed anti-cross contamination device for a dental air-turbine handpiece was tested. The handpiece with or without the anti-cross contamination device was contaminated with two bacterial strains, Staphylococcus aureus and Streptococcus mutans, as well as two bacteriophage strains, T2 and MS2. After contamination with these microorganisms, the handpieces were disinfected with glutaraldehyde or replaced with newly autoclaved ones. Residual microorganisms inside the handpiece or an air/water supply hose line were collected and counted after overnight cultivation. The anti-cross contamination device effectively reduced the contamination level of an air-turbine handpiece to that of the negative control. No microbial contamination in the air/water supply hose line was detected with this device.

Air Microbiology↗

PubMedDate not supplied

Effects of collagen concentration on epithelial differentiation: in vitro analysis with a mucosal tissue model.

Using collagen, epithelial cells, and fibroblasts isolated from the rabbit oral mucosa, a mucosal tissue model was prepared in vitro. Using this model, the effects of the collagen concentration on growth and differentiation of epithelial cells were studied. A positive correlation was found to exist between the collagen concentration and growth as well as the differentiation of epithelial cells. Further, above a 8.6% concentration of collagen, formation of the epithelial process and the basement membrane at the border between the epithelial layer and the connective tissue was noted. A conclusion was drawn that the collagen concentration in the extracellular matrix is deeply related to the growth and differentiation of mucosal epithelial cells. At the same time, it can be said that the successful completion of this research project endorsed the reliability of our methodology for the study of mucosa.

Animals↗

PubMedDate not supplied

Surgery for hepatocellular carcinoma with tumor thrombus in the right atrium.

Three cases of tumor thrombus that originated from a hepatocellular carcinoma in the liver and extended into the right atrium are described. All patients had received both resection of the tumor thrombus and lobectomy of the liver either simultaneously or independently within a short interval. Surgical order and extracorporeal circulation system were varied depending on the thrombus extension. Two of the patients died within 4 months of surgery due to different reasons and the other is doing well at 24 months after surgery.

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