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proliferation造句
(61) The relative complexity of gastric crypt anatomy compared with colorectal mucosa has discouraged its use as an experimental model in proliferation research. (62) It is thought to reflect defective cell proliferation control and delayed onset of normal differentiation. (63) Clearly the proliferation of little municipal governments runs counter to this philosophical wisdom and practical reality. (64) The study of gastric mucosal proliferation may have important clinical applications. (65) Nitrogen mustards in suitable doses damage only cells and tissues which normally exhibit relatively high rates of proliferation and growth. (66) Under nuclear proliferation safeguards, plutonium shipments have to be accompanied by armed vessels. (67) The government had also noted the proliferation of schismatic religious movements over the previous few years. (68) Everywhere machinery multiplies with almost human-like proliferation, replicating and updating more quickly than human reproduction. (69) Discussion A substantial body of evidence implicates events at the EGF receptor as the start of hepatocyte proliferation after partial hepatectomy. (70) In the same period the power of standing committee chairmen was further eroded by the institutionalization and proliferation of sub-committees. (71) Our data are also consistent with observations in man that mucosal proliferation is increased in patients with large adenomas or cancer. (72) This could result from bile acid mediated effects on cellular proliferation through several possible pathways as already discussed. (73) Ligand binding to the EGF receptor therefore seems to be integrally associated with liver cell proliferation. (74) The proliferation of staff has also damaged collegial relationships in Congress. (75) A opportunity arose from a primary study of proliferation in gastric malignancy to investigate BrdUrd labelled gastric mucosa. (76) Short term supplementation with vitamin C reduces the cell proliferation to normal values possibly by reducing the S-phase duration. (77) Shortening product life cycles and rapid product proliferation mean that investment in innovation is critical in global competition. (78) Instead of preventing proliferation, it has promoted it by allowing nations to protest innocence while violating the treaty's inadequate provisions. (79) The soil was suitably acid, I suspected, judging by the proliferation of rhododendrons I had seen. (80) A similar paradox pertains in the relationship between dietary fibre, colonic cell proliferation, and experimental carcinogenesis. (81) While the evidence linking increased cell proliferation and colorectal cancer is good, the converse is less clear cut. (82) The proliferation index was also calculated separately for each of five compartments of equal size into which each crypt column was divided. (83) Conversely, a low fibre diet did not lead to changes in cellular proliferation which might be associated with mucosal instability. (84) Discussion Our results are consistent with observations in man that mucosal proliferation decreases with distance from the ileocaecal valve to the rectum. (85) This preparation has been shown not to affect epithelial cell proliferation. (86) Unlike encryption, digital signatures are a recent development, the need for which has arisen with the proliferation of electronic commerce. (87) Electron microscopy showed a striking increase in collagen with minimal fibroblast proliferation. (88) The pursuit of a cease-fire dominated a summit of world leaders in Moscow, meeting to discuss nuclear safety and arms proliferation. (89) Limited studies have been published on human gastric mucosal cell proliferation and a detailed overview of such work has been published. (90) Both are characterised by a focal or multifocal pattern of distribution, abnormal cellular proliferation, and a genetic component.