Results 201 to 210 of about 26,475 (236)
Some of the next articles are maybe not open access.
Radioresistance of Mongolian Gerbils
International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine, 1977Seventy-six 8 week old Mongolian gerbils were exposed to acute, whole-body fast neutrons produced by The University of Michigan 83-in. cyclotron. Groups of seven or eigth gerbils were given doses between 485 and 881 rad at 25 rad per minute. The LD 50/30 determined by probit analysis was 750 rad, with 95 per cent fiducial limits of 733 and 776. For the
A P, Jacobson +4 more
openaire +2 more sources
Mechanisms in Acquired Radioresistance of Cancer
Radiology, 1953Acquired radioresistance in cancer of various types is a phenomenon all too common in the radiotherapist's experience. The lymphomas as a group appear to be among the most outstanding examples of human cancers which may exhibit this finding. To explain it, many theories are recorded in the literature; few experimentally established facts, however, are ...
P O, MONTGOMERY, S, WARREN
openaire +2 more sources
2001
Abstract The first indication that scorpions had unusually high resistance to ionizing radiation came in 1960 from nuclear weapons testing by France in the Sahara; near ground-zero the only animals to survive the detonations were scorpions (Androctonus sp.) and some Coleopteran beetles (Pimelia sp.).
Max Goyffon, Vincent Roman
openaire +1 more source
Abstract The first indication that scorpions had unusually high resistance to ionizing radiation came in 1960 from nuclear weapons testing by France in the Sahara; near ground-zero the only animals to survive the detonations were scorpions (Androctonus sp.) and some Coleopteran beetles (Pimelia sp.).
Max Goyffon, Vincent Roman
openaire +1 more source
Programmed cell death and radioresistance
Cancer and Metastasis Review, 1996Whereas apoptosis is a critical mode of cell deletion in normal organism development, apoptotic cells are also observed in tumors, especially following cytotoxic treatments, leading to questions about their role in tumor response to therapy. We have conducted a series of studies using murine tumor models and found that the ability of the tumor cells to
R E, Meyn, L C, Stephens, L, Milas
openaire +2 more sources
Radioresistance Induced by Oncogenic Transformation
Radiation Research, 1989Rat embryo cells at various stages of oncogenic transformation are obtained by a combination of X irradiation and transfection with the ras and the myc oncogenes. Transfection with either the ras or the myc oncogenes can lead to increased radioresistance, relative to the parental cells.
C C, Ling, B, Endlich
openaire +2 more sources
Inheritance of radioresistance in Drosophila. I
Mutation Research, 1966Abstract Two wild-type strains of Drosophila melanogaster , Hikone-H and Mino-H are radioresistant to γ-rays, but a Yamaguchi wild-type strain is radiosensitive, as are also two mutant strains, bw; st ss and vg-ms;se . In general, the females from these strains are more resistant than the males.
M, Ogaki, E, Nakashima-Tanaka
openaire +2 more sources
Aquired Radioresistance of Tumour Cells
Nature, 1967RADIORESISTANCE of tumours, which appears as a result of repeated irradiation, was described in 1904 by Lassueur1. Certain characteristics were later examined: tumour ploidy2–6; the state of the mitochondria7 and ribosome8; the content of sulphydryl groups9,10; the capacity for anaerobic glycolysis11; catalase activity12; and changes in the immune ...
Balmukhanov, S B +2 more
openaire +2 more sources
Cellular and molecular mechanisms of radioresistance
1995Outstanding work on the cellular and molecular aspects of radioresistance has been published in the past 10 years [1,2]. The work presented herein does not attempt to be comprehensive but is a review of the work of our laboratory as it pertains to aspects of radioresistance with potential applicability to chemotherapy/cytokine radiotherapy interactions.
R R, Weichselbaum +6 more
openaire +2 more sources
A Study on Fungal Radioresistance and Sensitivity
Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite Naturwissenschaftliche Abteilung: Allgemeine, Landwirtschaftliche und Technische Mikrobiologie, 1977Lower doses of gamma and X-rays (5 and 1 Krad, respectively) stimulated the spore germination and growth of 7 tested fungi. Higher doses (500 and 100 Krad, respectively) revealed that Epicoccum nigrum was the most radioresistant, while Alternaria humicola, Stemphylium verruculosum, Rhizopus nigricans, and Cladosporium herbarum were of moderate ...
A M, Salama +3 more
openaire +2 more sources
Relation of Tumor Size to Radioresistance
Radiology, 1957IN PREVIOUS experiments on the development and transplantation of locally radioresistant mouse lymphoma, the larger tumors, previously treated or untreated, appeared to be the more resistant to the effects of local irradiation. This phenomenon was observed in two lines of lymphoma cells in two strains of mice and seem to agree with Sturgis' clinical ...
Charles M. Nice, John Kuntz
openaire +2 more sources