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Biomedical subjects

G A Stevenson

Publications and source records attributed to G A Stevenson.

4 recordsLinked to original sources
PubMed1985

Rat carcinoma cells in long-term, serum-free culture provide a continuing supply of collagenase.

Neoplastic, epithelial cells derived from a spontaneously-arising rat mammary carcinoma have been cultured in a defined medium, in the absence of serum, continuously, for over 2 years. The medium is a mixture of Ham's F12 and Dulbecco's Modified Eagle's media supplemented with insulin, transferrin and bovine serum albumin. The cells have retained their potential to produce tumours and, in culture, a true vertebrate collagenase. This system provides a continuing supply of vertebrate collagenase through the application of recently developed methods.

Animals↗
PubMed1977

Spontaneous urinary extravasation in non-acute ureteric obstruction: a report of four cases.

Four new cases of spontaneous extravasation of contrast medium during intravenous urography have been described. All were due to non-acute obstruction of the ureter. This is relatively uncommon as most of the cases previously described have been due to passage of a ureteric calculus. Two of the patients improved after relief of the obstruction. In one a nephrectomy was carried out, and one patient died of an unrelated cause before the obstruction could be relieved.

Adult↗