[The use of radiotherapy in the prevention of heterotopic ossification in patients with total hip replacement].

In order to prevent heterotopic ossification (HO) after total hip replacement, 21 high risk hips were irradiated pre- and postoperatively to prevent heterotopic bone formation in the St. Paul Department of Radiation Oncology from 1993 to September, 1995. Eighteen hips in 15 patients were eligible for analysis with a minimum follow-up of 3 months.

Effect of recombinant human TNF on human ovarian cancer cell lines.

Ovarian cancer is the second most common gynecologic malignancy. Standard therapeutic approaches to this disease, surgery followed by chemotherapy, have produced response rates of up to 80%. However, the five-year survival rate remains around 30%.

[Use of reconstituted basal membranes for the study of invasion of human tumor cells: current status and future prospects].

Tumor metastasis is the major cause of death of oncology patients. One of the characteristic properties acquired by the metastatic cell is the ability to cross basement membranes. These are compartments of extracellular matrix composed largely by collagen type IV, laminin and a heparan sulphate proteoglycan.