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Biomedical subjects

K Thakerngpol

Publications and source records attributed to K Thakerngpol.

At least 37 records · Page 2Linked to original sources
PubMed1986

Persistent bacterial endocarditis caused by three isolates of satellite streptococci.

Three isolates of satellite streptococci were cultivated from the blood of a patient affected persistent bacterial endocarditis. They had distinguishable ultrastructural abnormalities. Their cell wall architecture changed from a fuzzy coat (first isolate) to a thick electron transparent layer covered with a rough fuzzy coat (second isolate), and to electron dense globular material which detached from the wall in small patches (third isolate). The antibiotics probably played an important role in changing their architecture. These three isolates were probably derived from the same strain, since they had common biochemical characteristics and they were isolated from the same patient during the course of his endocarditis.

Adult↗
PubMed1985

Abnormal form of Aspergillus terreus isolated from mycotic abscesses.

A remarkable outer cell-wall thickening (up to 1.5 muM) was observed on septate hyphae obtained from pus collected from multiple abscesses of a 25-year-old female patient. Ultrastructural examination of the hyphae showed a thick electron dense layer of microfibrillar material surrounding the electron transparent cell wall. The organism was able to grow only on hypertonic media upon initial isolation but on later subculture it grew on normal isotonic media. The thick microfibrillar material diminished progressively upon subculture but could be demonstrated in 7 day secondary cultures in isotonic liquid medium. There, microfibrillar bridges appeared to bind hyphae together. The observations suggested that this microfibrillar material was a true extracellular component. The immunological status of the patient was not examined, but her 10 year history of multiple mycotic abscesses and dermatophytoses suggested some abnormalities.

Abscess↗
PubMed1983

Adenosquamous carcinoma and carcinoidal differentiation of the colon. Report of a case.

A case of colonic tumor demonstrating both adenosquamous carcinomatous and carcinoidal features is reported. Previous record of such an occurrence has not been encountered. The relationship between the three elements appears to be an intimate one. It is not regarded as purely coincidental, but supports the possibility of a close histogenetic relationship between the three components.

Adenocarcinoma↗
PubMed1978

Ultrastructure of cholangiocarcinoma associated with opisthorchiasis.

An electron microscopic study was carried out on eleven surgical liver biopsy specimens obtained from patients with cholangiocarcinoma associated with opisthorchiasis. The tumor cells of histologically well differentiated cholangiocarcinoma had few cytoplasmic organelles. They contained relatively large nuclei, abundant free ribosomes and numerous groups of fine fibrils. Each cell was surrounded by a basement membrane. Numerous long microvilli were seen projecting into the glandular lumen. The moderately differentiated cholangiocarcinomatous cells exhibited increased organelle content, marked variation in the shape of the nuclei with deep cytoplasmic invagination into the nuclear membrane; there were small intranuclear pseudoinclusions, and shorter microvilli. The tumor cells showed intracellular microvillus-lined spaces, abundant free ribosomes, many fine fibrils and their surrounding basement membranes were incomplete. The ultrastructure of the poorly differentiated cholangiocarcinoma was similar to that of the moderately differentiated tumor, except for fewer microvilli, abundant cytoplasmic organelles, and ill-defined or absent basement membrane.

Adenoma, Bile Duct↗