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Human articular cartilage has been separated into surface (approx. 15% of tissue depth) and deep zones (remaining tissue) and the constituent chondrocytes released by enzymic digestion. Subsequent culture either as a low density monolayer or as a suspension over agarose revealed distinct morphological and synthetic behaviour in the two populations. Whilst(More)
BACKGROUND Surgical control of morbid obesity should benefit from a minimally invasive approach and the ability to adjust the degree of gastric restriction. METHODS The Lap-Band adjustable gastric banding system was evaluated prospectively in a consecutive series of 302 patients, and data on perioperative outcome and weight loss pattern at up to 4 years(More)
Biomass of the submersed macrophyte Vallisneria americana rose steadily from early June to 50 g dry wt·m−2 in ealry August. Leaves dominated the biomass of this perennial from mid-June through August, after which plants senesced to leave only winter buds as perennating organs. Only 24% of plants sampled flowered during the 1978 growing season, yielding a(More)
Gastrointestinal lymphoma is an uncommon disease but is the most frequently occurring extranodal lymphoma and is almost exclusively of non-Hodgkin type. Primary gastrointestinal lymphoma most commonly involves the stomach but can involve any part of the gastrointestinal tract from the esophagus to the rectum. Risk factors for the development of(More)
Brown adipose tissue (BAT) is well recognised to have an important role in the maintenance of body temperature in animals and human neonates, its thermogenic action affected by a tissue-specific uncoupling protein; fatty acid oxidation within the numerous brown adipocyte mitochondria is rendered inefficient leading to heat, rather than adenosine(More)
Livers of bullfrogs (Rana catesbeiana) from a polychlorinated biphenyl (PCB) contaminated watershed and hazardous waste site located in Pickens County, South Carolina, contained significantly higher concentrations of PCBs (2.33 and 2.26 ppm, respectively) than those from a reference site (0.05 ppm). Green frogs (R. clamitans) from the two contaminated sites(More)
BACKGROUND Three cases of diffuse malignant vascular tumours of the pleura are described which mimicked malignant mesothelioma clinically and pathologically (so called "pseudomesothelioma"). All had occupational histories of exposure to asbestos. The relationship of these tumours to mesothelioma and asbestos exposure is discussed. METHODS To examine the(More)
1 Wilkinson RG. Income distribution and life expectancy. BMJ 1992;304:165-8. 2 Wilkinson RG. Unhealthy societies: the afflictions of inequality. London: Routledge, 1996. 3 Kaplan GA, Pamuk E, Lynch JW, Cohen RD, Balfour JL. Inequality in income and mortality in the United States: analysis of mortality and potential pathways. BMJ 1996;312:999-1003. 4 Kennedy(More)