Learn More
Ten cell lines of human squamous carcinomas of the tongue and larynx have been established from surgical specimens removed from 36 unselected patients, in order to provide systems for investigating the invasive and tissue-destructive capacity of squamous carcinomas of the head and neck. The morphology, ultrastructure and growth characteristics of the 10(More)
Selected case histories indicate that there is good evidence that atopic disease is associated with severe primary and recurrent ocular herpes. The salient features of the syndrome are that the disease is often bilateral, that recurrences are more frequent, and that the corneal epithelium is often slow to regenerate after disease. Therapeutic difficulties(More)
Walker carcinosarcoma cells cause in vitro osteolysis which may be inhibited by aspirin. In the rat, this tumour produces osteolytic bone deposits and hypercalcaemia, both of which can be prevented by aspirin and indomethacin, whereas soft tissue tumour deposits are unaffected by these drugs. Some human breast tumours cause in vitro osteolysis which may be(More)
The routine preparation of gram quantities of lobuloalveolar and ductal structures from human reduction mammaplasties by treatment with collagenase is described. When cultured on plastic or glass surfaces these structures give rise, initially, to epithelial sheets consisting of cells which retain many morphological characteristics of myoepithelial cells and(More)
23 (60%) of 38 human breast carcinomas had significant in-vitro osteolytic activity. All patients presenting with bone metastases or hypercalcaemia had active tumours. Over a subsequent three-year follow-up period, bone metastases did not develop in any of the 15 patients with inactive tumours, and metastases at other sites developed in only 2. Of the 23(More)
Organ cultures of chorioallantoic membranes of hen eggs have been used to establish a quantitative method of measuring the infiltrative ability of a variety of normal and tumour cells. Normal fibroblasts, mouse peritoneal cells and cells of low tumorigenicity infiltrated poorly and slowly whereas most tumours infiltrated rapidly. Some cells of the more(More)
This paper describes a new approach to image enhancement for people with severe visual impairments to enable mobility in an urban environment. A neural-network classifier is used to identify objects in a scene so that image content specifically important for mobility may be made more visible. Enhanced images are displayed to the user using a high saturation(More)