Autoradiographic Study on Unscheduled DNA Synthesis in Short-term Organ Culture
نویسندگان
چکیده
منابع مشابه
unscheduled DNA synthesis and genotoxicity
Results from a recent, new assay suggest that omeprazole, a potent inhibitor of gastric acid secretion, is genotoxic. The principle of this assay is that the non-proliferating zone of surface gastric epithelial cells can be selectively removed by controlied digestion so that any incorporation of tritiated thymidine into these cells represents unscheduled DNA synthesis. Parietal cells (which are...
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Rabbit corneas cultured in a serum-free, dextran-supplemented medium maintained a high rate of incorporation of H-glucosamine into glycosaminoglycans (GAG) for several weeks in culture. The labeled GAG secreted by cultured corneas was identified as keratan sulfate, galactosaminoglycan, and heparan sulfate. Corneal GAG labeled in vivo consisted primarily of keratan sulfate and galactosaminoglyca...
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از گذشته تا کنون، تحقیقات بسیاری صورت گرفته است که همگی به گونه ای بر مثمر ثمر بودن استفاده از استراتژی های یادگیری لغت در یک زبان بیگانه اذعان داشته اند. این تحقیق به بررسی تاثیر دو روش مختلف آموزش واژگان انگلیسی (کلیدی و بافتی) بر تلفظ و دانش لغوی فراگیران ایرانی زیر متوسط زبان انگلیسی و بر ماندگاری آن در حافظه می پردازد. به این منظور، تعداد شصت نفر از زبان آموزان ایرانی هشت تا چهارده ساله با...
15 صفحه اولAction of angiotensin II on DNA synthesis by human saphenous vein in organ culture.
Angiotensin II (Ang II), an effector peptide of the renin-angiotensin system, has been reported to stimulate growth of blood vessels in vivo and smooth muscle cells in culture. In this study, the effect of Ang II on DNA synthesis was examined in deendothelialized human saphenous vein in organ culture. After 7 days' exposure to medium containing 0.4% fetal calf serum plus Ang II, there was a mar...
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Previous studies have shown that in vitro thyroid peroxidase (TPO) iodide oxidation activity is decreased and thyroid T4-5'-deiodinase activity is increased 15 days after induction of experimental diabetes mellitus (DM). In the present study we used thyroid histoautoradiography, an indirect assay of in vivo TPO activity, to determine the possible parallelism between the in vitro and in vivo cha...
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ژورنال
عنوان ژورنال: Japanese Journal of Oral Biology
سال: 1980
ISSN: 0385-0137
DOI: 10.2330/joralbiosci1965.22.300