Stem cell kinetics in spleen and bone marrow after single and fractionated irradiation of infant mice.

abstract：:Hematoporphyrin (Hp) solutions were subjected to a wide range high intensity (0.2-10.0 GW/cm2) near-UV laser pulse radiation (lambda exc = 355 nm, pulse duration 30 ps). The formation of stable Hp photoproducts was followed by UV-VIS absorption spectroscopy and liquid-gel column chromatography. As judged by the influe...

journal_title：Radiation and environmental biophysics

authors： Gantchev T,Keskinova E,Kaltchev M,Angelov D

更新日期：1990-01-01 00:00:00

abstract：:Bone sarcoma as a second malignancy is rare but highly fatal. The present knowledge about radiation-absorbed organ dose-response is insufficient to predict the risks induced by radiation therapy techniques. The objective of the present study was to assess the treatment-induced risk for bone sarcoma following a childho...

journal_title：Radiation and environmental biophysics

authors： Schwartz B,Benadjaoud MA,Cléro E,Haddy N,El-Fayech C,Guibout C,Teinturier C,Oberlin O,Veres C,Pacquement H,Munzer M,N'guyen TD,Bondiau PY,Berchery D,Laprie A,Hawkins M,Winter D,Lefkopoulos D,Chavaudra J,Rubino C,D

更新日期：2014-05-01 00:00:00

abstract：:The results of a study in which groups of sheep were given single oral administrations of 14C, 3H and 35S and then slaughtered over a period of 1 year are reported. The experimental data were used to investigate the potential of metabolically based models for describing the transfer of the three radionuclides to sheep...

journal_title：Radiation and environmental biophysics

authors： Crout NM,Mayes RW,Beresford NA,Lamb CS,Howard BJ

更新日期：1998-02-01 00:00:00

abstract：:Testing the limits of survivability in space is the primary focus in astrobiological research. Although a number of previous studies have examined terrestrial life survival in an extraterrestrial environment, only a few have investigated how life systems respond to high doses of alpha cosmic ray, the main component of...

journal_title：Radiation and environmental biophysics

authors： Miki K,Kawashima S,Takahashi Y,Yonemura S

更新日期：2019-08-01 00:00:00

abstract：:125I incorporated in DNA is known to be exceptionally toxic. Values of D0 range from about 40 to about 90 decays for survival of mammalian cells. The effectiveness of 125I in DNA with respect to the induction of breaks of the DNA strands, however, appears to be comparatively low. The numbers of strand breaks per energ...

journal_title：Radiation and environmental biophysics

authors： Tisljar-Lentulis G,Schneeweiss FH,Feinendegen LE

更新日期：1987-01-01 00:00:00

abstract：:Several proteins are known to form foci at DNA sites damaged by ionizing radiation. We study DNA damage response by immunofluorescence microscopy after microirradiation of cells with energetic ions. By using microirradiation, it is possible to irradiate different regions on a single dish at different time-points and t...

journal_title：Radiation and environmental biophysics

authors： Greubel C,Hable V,Drexler GA,Hauptner A,Dietzel S,Strickfaden H,Baur I,Krücken R,Cremer T,Friedl AA,Dollinger G

更新日期：2008-11-01 00:00:00

abstract：:Within the Theory of Dual Radiation Action, the heuristically useful function, gamma(chi), that two energy depositions, a distance chi apart, will result in observable damage can be written in terms of two more fundamental quantities: One, s(chi), describes the structure of the sensitive matrix of the cell. The other,...

journal_title：Radiation and environmental biophysics

authors： Brenner DJ

更新日期：1988-01-01 00:00:00

abstract：:As a consequence of the increased use of renewable energy and the now long distances between energy generation and consumption, in Europe, electric power transfer by high-voltage (HV) direct current (DC) overhead power lines gains increasing importance. Thousands of kilometers of them are going to be built within the ...

journal_title：Radiation and environmental biophysics

authors： Leitgeb N

更新日期：2014-05-01 00:00:00

abstract：:The ion microprobe SNAKE at the Munich 14 MV tandem accelerator achieves beam focussing by a superconducting quadrupole doublet and can make use of a broad range of ions and ion energies, from 20 MeV protons to 200 MeV gold ions. Because of these properties, SNAKE is particularly attractive for biological microbeam ex...

journal_title：Radiation and environmental biophysics

authors： Hauptner A,Dietzel S,Drexler GA,Reichart P,Krücken R,Cremer T,Friedl AA,Dollinger G

更新日期：2004-02-01 00:00:00

abstract：:The non-random distribution of DNA breakage in pulsed-field gel electrophoresis (PFGE) experiments poses a problem of proper subtraction of the background damage to obtain a fragment-size distribution due to radiation only. As been pointed out by various authors, a naive bin-to-bin subtraction of the background signal...

journal_title：Radiation and environmental biophysics

authors： Ponomarev AL,Belli M,Hahnfeldt PJ,Hlatky L,Sachs RK,Cucinotta FA

更新日期：2007-06-01 00:00:00

abstract：:The rare earth radionuclides 177 Lu and 153Sm were administered as single i.p. injections in NMRI mice. Lu was deposited principally (up to 60%) in the skeleton if the quantity of stable carrier was low. Increase of stable carrier enhanced deposition in the reticulo-endothelial system. Sm was preferentially deposited ...

journal_title：Radiation and environmental biophysics

authors： Müller WA,Scháffer EH,Linzner U

更新日期：1980-01-01 00:00:00

abstract：:The probability of the formation of ionization clusters by primary alpha-particles at 5.4 MeV in nanometric volumes of propane was studied experimentally and by Monte Carlo simulation, as a function of the distance between the center line of the particle beam and the center of the target volume. The volumes were of cy...

journal_title：Radiation and environmental biophysics

authors： De Nardo L,Colautti P,Conte V,Baek WY,Grosswendt B,Tornielli G

更新日期：2002-12-01 00:00:00

abstract：:Roots of Pisum sativum L. were chronically exposed to 60-Hz vertical electric fields ranging from 150 to 450V/m in an aqueous medium whose conductivity was approximately 0.07 S/m. Control and exposed roots were grown concomitantly in the same tank whose medium was continuously circulated and maintained at 19 degrees C...

journal_title：Radiation and environmental biophysics

authors： Miller MW,Dooley DA,Cox C,Carstensen EL

更新日期：1983-01-01 00:00:00

abstract：:Procedures for age-adjustment of cancer fractions are proposed which do not require fixed age intervals. The full available information on survival times can then be used, which is especially important in small treatment groups. For incidental cancers a non-decreasing prevalence function and for fatal cancers the Kapl...

journal_title：Radiation and environmental biophysics

authors： Heidenreich WF,Collier C,Morlier JP,Cross FT,Kaiser JC,Monchaux G

更新日期：2004-09-01 00:00:00

abstract：:The development of biophysical models of chromosome aberration induction has undergone considerable improvements in the past few years. This is mainly due to the development of new experimental techniques, such as fluorescence in situ hybridization (FISH) and premature chromosome condensation (PCC), and to a better kn...

journal_title：Radiation and environmental biophysics

authors： Ottolenghi A,Ballarini F,Merzagora M

更新日期：1999-05-01 00:00:00

abstract：:Beginning in 1950, people living on the banks of the Techa River received chronic low-dose-rate internal and external radiation exposures as a result of releases from the Mayak nuclear weapons plutonium production facility in the Southern Urals region of the Russian Federation. The Techa River cohort includes about 30...

journal_title：Radiation and environmental biophysics

authors： Krestinina L,Preston DL,Davis FG,Epifanova S,Ostroumova E,Ron E,Akleyev A

更新日期：2010-05-01 00:00:00

abstract：:The rate constants for the photodynamic inactivation of hen egg-white lysozyme at different temperatures were studied. Arrhenius plots of the methylene blue sensitized photo-inactivation of lysozyme gave an experimental activation energy of 7.5 kcal/mol. The rate constants for the photodynamic inactivation of lysozyme...

journal_title：Radiation and environmental biophysics

authors： Silva E

更新日期：1979-02-23 00:00:00

abstract：:Radiation is known to be carcinogenic to humans but attempts to demonstrate the process using human tissue culture models have met with little success. In the present study explants were established from urothelium and exposed to radiation and a range of chemical carcinogens, suspected promotor or metabolic agents. Th...

journal_title：Radiation and environmental biophysics

authors： Mothersill C,O'Brien A,Seymour CB

更新日期：1990-01-01 00:00:00

abstract：:In this work, direct DNA damage induced by low-energy electrons (sub-keV) is simulated using a Monte Carlo method. The characteristics of the present simulation are to consider the new mechanism of DNA damage due to dissociative electron attachment (DEA) and to allow determining damage to specific bases (i.e., adenine...

journal_title：Radiation and environmental biophysics

authors： Liu W,Tan Z,Zhang L,Champion C

更新日期：2017-03-01 00:00:00

abstract：:Mouse spermatogonial germ cells are highly sensitive to ionizing radiation. Lithium salts are reported to stimulate the postirradiation recovery of hematopoietic marrow cells. We have, therefore, examined whether administered lithium chloride (LiCl) would also be able to protect the mouse germinal cells against radiat...

journal_title：Radiation and environmental biophysics

authors： Bhattacharjee D,Rajan R,Krishnamoorthy L,Singh BB

更新日期：1997-06-01 00:00:00

abstract：:An LBO (Li2B4O7) walled ionization chamber was designed to monitor the epithermal neutron fluence in boron neutron capture therapy clinical irradiation. The thermal and epithermal neutron sensitivities of the device were evaluated using accelerator neutrons from the 9Be(d, n) reaction at a deuteron energy of 4 MeV (4 ...

journal_title：Radiation and environmental biophysics

authors： Endo S,Sato H,Shimazaki T,Nakajima E,Kotani K,Suda M,Hamano T,Kajimoto T,Tanaka K,Hoshi M

更新日期：2017-08-01 00:00:00

abstract：:Radiocaesium absorption and retention in reindeer (Rangifer tarandus) calves was compared in groups fed diets containing different proportions of lichen and concentrates, and different chemical forms of radiocaesium ((134)CsCl in solution or fallout from the Chernobyl accident). Daily intakes of fallout radiocaesium w...

journal_title：Radiation and environmental biophysics

authors： Skuterud L,Pedersen Ø,Staaland H,Røed KH,Salbu B,Liken A,Hove K

更新日期：2004-12-01 00:00:00

abstract：:The risk of cancer after diagnostic X-rays received as fetus or during early childhood has been investigated in many studies. The results of recent epidemiological studies are summarized in a present systematic review. The strategies for literature search, inclusion criteria, and items for study quality assessment wer...

journal_title：Radiation and environmental biophysics

authors： Schulze-Rath R,Hammer GP,Blettner M

更新日期：2008-07-01 00:00:00

abstract：:Time-dependent yields of the most important products of water radiolysis E(aq)(-), (*)OH, H(*), H(3)O(+), H(2), OH(-) and H(2)O(2) have been calculated for (60)Co-photons, electrons, protons, helium- and carbon-ions incident onto water. G values have been evaluated for the interval from 1 ps to 1 mus after initial ene...

journal_title：Radiation and environmental biophysics

authors： Kreipl MS,Friedland W,Paretzke HG

更新日期：2009-02-01 00:00:00

abstract：:In this pilot study we compared for the first time the radiation sensitivity of mouse lens epithelial cells (LECs) and mouse lymphocytes. We freshly prepared LECs and lymphocytes and irradiated them with γ-rays ((137)Cs; doses ranging from 0.25 to 2 Gy). DNA damage and repair were evaluated by alkaline comet assay and...

journal_title：Radiation and environmental biophysics

authors： Bannik K,Rössler U,Faus-Kessler T,Gomolka M,Hornhardt S,Dalke C,Klymenko O,Rosemann M,Trott KR,Atkinson M,Kulka U,Graw J

更新日期：2013-05-01 00:00:00

abstract：:Recent analyses of the Canadian fluoroscopy cohort study reported significantly increased radiation risks of mortality from ischemic heart diseases (IHD) with a linear dose-response adjusted for dose fractionation. This cohort includes 63,707 tuberculosis patients from Canada who were exposed to low-to-moderate dose f...

journal_title：Radiation and environmental biophysics

authors： Schöllnberger H,Kaiser JC,Eidemüller M,Zablotska LB

更新日期：2020-03-01 00:00:00

abstract：:Waterborne radioactive releases into the Techa River from the Mayak Production Association in Russia during 1949-1956 resulted in significant doses to about 30,000 persons who lived in downstream settlements. The residents were exposed to internal and external radiation. Two methods for reconstruction of the external ...

journal_title：Radiation and environmental biophysics

authors： Degteva MO,Shagina NB,Shishkina EA,Vozilova AV,Volchkova AY,Vorobiova MI,Wieser A,Fattibene P,Della Monaca S,Ainsbury E,Moquet J,Anspaugh LR,Napier BA

更新日期：2015-11-01 00:00:00

abstract：:For the estimation of radiation doses to organisms, concentration ratios (C ( R )s) of radionuclides are required. In the present study, C(R)s of various elements were obtained as analogues of radionuclides for algae, molluscs, and crustaceans, in eight estuarine areas around Japan. The elements measured were Na, Mg, ...

journal_title：Radiation and environmental biophysics

authors： Takata H,Aono T,Tagami K,Uchida S

更新日期：2010-11-01 00:00:00

abstract：:The effect of negative pions (peak and plateau), photons (140 kV and 29 MeV), and 20 MeV electrons on the proliferative capacity of Ehrlich ascites carcinoma cells was investigated. Proliferative survival curves plotted for the modalities employed are presented. Under the experimental conditions used, the peak pions w...

journal_title：Radiation and environmental biophysics

authors： Rao KR,Blattmann H,Cordt I,Fritz-Niggli H

更新日期：1979-08-10 00:00:00

abstract：:The aim of this study was to verify whether extremely low frequency (ELF) magnetic fields (MF) could affect transposition activity like some environmental stress factors such as heat shock or UV irradiation. Using an Escherichia coli Lac Z(-) strain transformed with a plasmid containing a Tn 10 derivative element expr...

journal_title：Radiation and environmental biophysics

authors： Del Re B,Garoia F,Mesirca P,Agostini C,Bersani F,Giorgi G

更新日期：2003-07-01 00:00:00