Biomedical subjects

Christopher Derek Sutton

Publications and source records attributed to Christopher Derek Sutton.

3 recordsLinked to original sources

PubMed2002

Reduced thrombospondin-1 at presentation predicts disease progression in superficial bladder cancer.

OBJECTIVES: Superficial bladder cancer (SBC) presents a difficult clinical dilemma at diagnosis as only a small subgroup of patients will subsequently develop invasive disease. Study of cancer biology has found that angiogenesis is central to growth and spread. This study examines the relationship between the angiogenic inhibitory factor Thrombospondin-1 (TSP-1) at initial presentation and subsequent progression of SBC. METHODS: Using immunohistochemistry, 220 cases of SBC were examined for pattern and extent of expression of TSP-1 at initial presentation. RESULTS: TSP-1 was detected in perivascular tissue, at the epithelial-stromal junction, in the stroma and in tumour cells and reduced perivascular TSP-1 staining at presentation was an independent predictive factor for the subsequent development of muscle invasive or metastatic disease. CONCLUSION: This adds further weight to the theory that TSP-1 plays a major part in the biology of bladder cancer possibly through the control of angiogenesis.

Adult↗

PubMed2002

A computer image analysis system for microvessel density measurement in solid tumours.

Microvessel density (MVD) is a widely used surrogate measure of angiogenesis in pathological specimens and tumour models. Measurement of MVD can be achieved by several methods. Automation of counting methods aims to increase the speed, reliability and reproducibility of these techniques. The image analysis system described here enables MVD measurement to be carried out with minimal expense in any reasonably equipped pathology department or laboratory. It is demonstrated that the system translates easily between tumour types which are suitably stained with minimal calibration. The aim of this paper is to offer this technique to a wider field of researchers in angiogenesis.

Blood Vessels↗

PubMed2002

A technique for wound closure that minimizes sepsis after stoma closure.

BACKGROUND: The aim of the present study was to assess the incidence of wound sepsis following closure of ileostomies and colostomies in our institution. METHODS: Circumferential subcuticular wound approximation was used in 51 patients in our institution. Evidence of wound sepsis (assessed by the presence of cellulitis, induration and or purulent discharge) was documented both in the postoperative period and in outpatient follow-up. RESULTS: A wound infection rate of 0% was achieved, both in the immediate postoperative period and upon 6-week follow-up. CONCLUSIONS: Circumferential subcuticular wound approximation is, therefore, a safe and efficacious technique for dealing with the skin wound after stomal closure, virtually abolishing wound sepsis.

Aged↗