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C Betancourt

Publications and source records attributed to C Betancourt.

6 recordsLinked to original sources
PubMed1998

Halogeometricum borinquense gen. nov., sp. nov., a novel halophilic archaeon from Puerto Rico.

A novel extremely halophilic archaeon was isolated from the solar salterns of Cabo Rojo, Puerto Rico. The organism is very pleomorphic, motile and requires at least 8% (w/v) NaCl to grow. Polar lipid composition revealed the presence of a novel non-sulfate-containing glycolipid and the absence of the glycerol diether analogue of phosphatidylglycerosulfate. The G + C content of the DNA is 59 mol%. On the basis of 16S rRNA sequence data, the new isolate cannot be classified in one of the recognized genera, but occupies a position that is distantly related to the genus Haloferax. All these features justify the creation of a new genus and a new species for the family Halobacteriaceae, order Halobacteriales. The name Halogeometricum borinquense gen. nov., sp. nov. is proposed. The type strain is ATCC 700274T.

Base Composition↗
PubMedDate not supplied

[Squamous cell carcinoma of the colon. A case report].

A case of primary squamous-cell carcinoma (epidermoid carcinoma) of the colon is presented located in the hepatic flexure. It seems to be the first case registered in Latin America. The pathogenesis, natural history, and treatment of the disease are reviewed.

Aged↗
PubMedDate not supplied

[Carcinoid tumor of the cecal appendix].

In connection with carcinoid tumor of the appendix as an incidental finding in appendectomies, we carried out revision in a period of 5 years, from 1983 through 1987, in the General Hospital of Venezuelan Institute of Social Security in San Felix, Bolivar State. We found two cases of carcinoid tumor of the appendix in 1433 appendixes that were examined by the Service of Pathology. Both cases were males patients who were admitted due to acute appendicitis. They represented 0.14% of the total appendectomies. We review on the subject and we find that the frequency is like to that published up to now. We agree with others authors in that simple appendectomy in the carcinoid tumor of the appendix is curative in tumors < 2 cm.

Appendectomy↗