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Biologic responses to low does of ionizing radiation: Adaptive response versus bystander effect / Reply
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TO THE EDITOR: In their Newsline commentary, Drs. Feinendegen and Pollycove call an important issue to the attention of readers of The Journal of Nuclear Medicine (1). In a discussion of the dual action of ionizing radiation, they posit a competition at low doses between the direct induction of radiation damage and the activation of damage control (adaptive response, hormesis), such that below 0.2 Gy the frequency of oncogenic transformation is lower than background and net radiation damage d...
Related newspaper, magazine, and journal articles from HighBeam Research
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Bystander effects in cell induced by photodynamic treatment, UVA radiation and inhibitors of ATP synthesis
Photochemistry and Photobiology
; ABSTRACT Confluent layers of MDCK II cells were treated with four different photosensitizers (a purified version of hematoporphyrin derivative [Photofrin], tetra(3-hydroxyphenyl)porphine [3-THPP], meso-tetra(4-sulphonatophenyl)porphine [TPPS^sub 4^] and ALA-induced Protoporphyrin IX) and irradiated
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NEW ARTICLE CASTS DOUBT ON CLASSIC 'BYSTANDER EFFECT' SYNDROME.(News)
The Cincinnati Post (Cincinnati, OH)
; Byline: Larry McShane, Associated Press NEW YORK -- It's straight out of Psychology 101: The Bystander Effect, a phenomenon illustrated by the infamous 1964 murder of Kitty Genovese as 38 callous neighbors ignored her screams for help. Except that while details of the case were exposed as dubious
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Girl, 17, has ex-teacher's baby.(News)
Western Mail (Cardiff, Wales)
; ... replicated when the situation involved low potential danger, but not when the situation involved high potential danger. 'The good news is that when people are in real trouble, they have a good chance of receiving help, even when more than one bystander is present ...
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Past, present and future perspectives of genetic therapy in gliomas
Indian Journal of Human Genetics
; Introduction Gliomas in adults are devastating diseases, with very poor survival despite their lack of distant metastases. The best avaiable treatments, such as surgical resection and radiotherapy have been only temporarly successful, once recidives are almost always present, being fatal within 1
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'Suicide microbeam' radiotherapy hope.(News)
The Birmingham Post (England)
; A futuristic 'microbeam' that zaps individual cancer cells with a stream of particles could revolutionise radiotherapy. British researchers found the beam caused targeted cells to send a wave of suicidal signals out to their neighbours. The 'bystander' effect meant that many more cancer cells were
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