Effects of mixed neutron-gamma irradiation in vivo on the cell surfaces of murine blood cells.

abstract：:Sustained pain relief following radon spa therapy in patients suffering from chronic painful diseases has been well described. But still, the underlying mechanisms are not fully understood. We conducted the prospective and explorative RAD-ON01 study which included 103 patients who suffered from chronic painful musculo...

journal_title：Radiation and environmental biophysics

authors： Kullmann M,Rühle PF,Harrer A,Donaubauer A,Becker I,Sieber R,Klein G,Fournier C,Fietkau R,Gaipl US,Frey B

更新日期：2019-03-01 00:00:00

abstract：:The oxyhemoglobin saturation (HbO2) of single red blood cells within tumor microvessels (diameter: 3-12 micrometers) of DS-Carcinosarcoma was studied using a cryophotometric micromethod. In untreated control tumors (mean tissue temperature approx. 35 degrees C) the measured values scattered over the whole saturation r...

journal_title：Radiation and environmental biophysics

authors： Vaupel PW,Otte J,Manz R

更新日期：1982-01-01 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：:Quantitative cancer incidence data exist for various laboratory animal models, but little of this information is usable for estimating human risks, primarily because of uncertainties about possible mechanistic differences among species. Acceptance and utilization of animal data for human risk assessment will require a...

journal_title：Radiation and environmental biophysics

authors： Burns FJ,Tang MS,Frenkel K,Nádas A,Wu F,Uddin A,Zhang R

更新日期：2007-06-01 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：:Checkpoints are components of signalling pathways involved in genome stability. We analysed the putative dual functions of Rad17 and Chk1 as checkpoints and in DNA repair using mutant strains of Saccharomyces cerevisiae. Logarithmic populations of the diploid checkpoint-deficient mutants, chk1Delta/chk1Delta and rad17...

journal_title：Radiation and environmental biophysics

authors： Bracesco N,Candreva EC,Keszenman D,Sánchez AG,Soria S,Dell M,Siede W,Nunes E

更新日期：2007-11-01 00:00:00

abstract：:In this study, temporal variations of indoor radon concentrations in Bulgaria were investigated. The radon concentrations were measured by nuclear track detectors as part of the Bulgarian National Survey, performed in the dwellings of 28 regional districts. The detectors were exposed through a year in two consecutive ...

journal_title：Radiation and environmental biophysics

authors： Ivanova K,Stojanovska Z

更新日期：2019-08-01 00:00:00

abstract：:The evolution of the proflavine triplet state population with the extent of aggregation is examines, by ESRmeasurements, as a function of organic solvents and mineral salts, well known for their ability to influence the aggregation process. The intensity of the triplet state population has also been investigated as a ...

journal_title：Radiation and environmental biophysics

authors： Lion Y,Saucin M,Van de Vorst A

更新日期：1975-12-04 00:00:00

abstract：:Activity catalysing double-strand DNA recombination has been investigated in human tumour cell lines using an in vitro assay in which nuclear extracts from tumour cells are used to catalyse homologous recombination between deletion plasmids. The cell lines investigated showed comparable constitutive levels of recombin...

journal_title：Radiation and environmental biophysics

authors： Lehnert S,Chow TY

更新日期：1997-02-01 00:00:00

abstract：:Investigation of cell-free DNA (cf-DNA) in body fluids, as a potential biomarker for assessing the effect of ionizing radiation on the organism, is of considerable interest. We investigated changes in the contents of cell-free mitochondrial DNA (cf-mtDNA) and cell-free nuclear DNA (cf-nDNA) in the urine of X-ray-expos...

journal_title：Radiation and environmental biophysics

authors： Abdullaev SA,Minkabirova GM,Bezlepkin VG,Gaziev AI

更新日期：2015-08-01 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：:Non-linear mechanical response of viscoelastic strain responding media to high amplitude stress-strain is examined from a phenomenological point of view and found to lead to results compatible with empirical observations of high intensity ultrasound irradiation of brain, liver, and eye lens tissues. The proposed hyste...

journal_title：Radiation and environmental biophysics

authors： Johnston RL,Dunn F

更新日期：1981-01-01 00:00:00

abstract：:After ingestion or inhalation of radionuclides, internal organs of the human body will be exposed to ionising radiation. Current risk estimates of radiation-associated cancer from internal emitters are largely based on extrapolation of risk from high-dose externally exposed groups. Concerns have been expressed that ex...

journal_title：Radiation and environmental biophysics

authors： Little MP,Hall P,Charles MW

更新日期：2007-11-01 00:00:00

abstract：:Indoor exposure to natural radon is a factor that influences lung cancer risk worldwide. The present study includes a meta-analysis of epidemiological data on the relationship between lung cancer and indoor radon. Altogether, 31 case-control studies with 20,703 cases, 34,518 controls and 140 individual odds ratio (OR)...

journal_title：Radiation and environmental biophysics

authors： Malinovsky G,Yarmoshenko I,Vasilyev A

更新日期：2019-03-01 00:00:00

abstract：:An inter-comparison of five models designed to predict the effect of ionizing radiation on populations of non-human wildlife, performed under the IAEA EMRAS II programme, is presented and discussed. A benchmark scenario 'Population response to chronic irradiation' was developed in which stable generic populations of m...

journal_title：Radiation and environmental biophysics

authors： Vives I Batlle J,Sazykina TG,Kryshev A,Monte L,Kawaguchi I

更新日期：2012-11-01 00:00:00

abstract：:It is shown that the properties of ATPase (EC 3.6.1.3) of Micrococcus luteus depend only to some extent on the state of the membrane to which it is attached. Its interaction with the membrane appears to be largely controlled by polar forces. It is shown, however, that the UV-sensitivity of the membrane-bound ATPase is...

journal_title：Radiation and environmental biophysics

authors： Volotovskij J,Risi S,Dose K

更新日期：1976-03-30 00:00:00

abstract：:Combined action of irradiation (IR), shear stress, and high blood pressure is well recognized to induce damage to vasculature, while data on pathological effects of IR in large peripheral vessels with low blood pressure are scarce. The purpose of the present study was hence to investigate time- and dose-dependent effe...

journal_title：Radiation and environmental biophysics

authors： Patties I,Habelt B,Rosin B,Dörr W,Hildebrandt G,Glasow A

更新日期：2014-03-01 00:00:00

abstract：:The observable responses of living systems to ionizing radiation depend on the level of biological organization studied. Understanding the relationships between the responses characteristic of the different levels of organization is of crucial importance. The main objective of the present study is to investigate how s...

journal_title：Radiation and environmental biophysics

authors： Madas BG,Balásházy I

更新日期：2011-11-01 00:00:00

abstract：:Blue (F450) and green (F530) leaf fluorescence were studied together with the red chlorophyll fluorescence (emission maxima F690 and F735) during light-induced chlorophyll fluorescence induction kinetics (Kautsky effect) in predarkened leaves of wheat (Triticum aestivum L.) and soybean (Glycine max L.). The intensity ...

journal_title：Radiation and environmental biophysics

authors： Stober F,Lichtenthaler HK

更新日期：1993-01-01 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：: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：:Microwave irradiation has been shown to decrease the input resistance of snail neurons. In this study, we examined the role of extracellular calcium in triggering the microwave-induced enhancement of membrane conductance. Two sets of experiments were conducted. In the first set, nerve cells were superfused using Ringe...

journal_title：Radiation and environmental biophysics

authors： Arber SL,Lin JC

更新日期：1985-01-01 00:00:00

abstract：:In this work, direct DNA damage induced by low-energy electrons (<5 keV) is simulated using Monte Carlo methods, and the resulting yield of various strand breaks and base damages in cellular environment is presented. The simulation is based on a new inelastic cross section for the production of electron track structur...

journal_title：Radiation and environmental biophysics

authors： Zhang L,Tan Z

更新日期：2010-03-01 00:00:00

abstract：:The naturally synchronous development of early mouse embryos was exploited to address the question, whether micronuclei require a mitosis for expression or whether they can be expressed in the same cell cycle, in which exposure to X-rays or caffeine took place. Experiments with 2-cell and with 4-cell embryos showed th...

journal_title：Radiation and environmental biophysics

authors： Müller WU,Schlusen I,Streffer C

更新日期：1991-01-01 00:00:00

abstract：:The radiation-induced process of strand breaks on pBR322 plasmid DNA in aqueous solution for different energy electrons was studied by Monte Carlo simulation. Assumptions of induction mechanisms of single- and double-strand breaks (SSBs and DSBs) used in the simulation are that SSB is induced by OH or H reaction with ...

journal_title：Radiation and environmental biophysics

authors： Watanabe R,Saito K

更新日期：2002-09-01 00:00:00

abstract：:A mathematical model which simulates the observed dose-effect relationships for fish eggs exposed to chronic irradiation is presented. The model assumes that the exposed fish eggs may exist in one of the following states: normally developing, reversibly damaged, and lethally damaged. Reversible damages may be recovere...

journal_title：Radiation and environmental biophysics

authors： Kryshev AI,Sazykina TG,Badalian KD

更新日期：2006-09-01 00:00:00

abstract：:The aim of this interdisciplinary project is to establish slice culture preparations from rodents and humans as a new model system for studying effects of X-rays and heavy ions within normal and tumor tissues. The advantage of such slice cultures relies on the conservation of an organotypic environment, the easy treat...

journal_title：Radiation and environmental biophysics

authors： Merz F,Müller M,Taucher-Scholz G,Rödel F,Stöcker H,Schopow K,Laprell L,Dehghani F,Durante M,Bechmann I

更新日期：2010-08-01 00:00:00

abstract：:The biological phenomena observed at low doses of ionizing radiation (adaptive response, bystander effects, genomic instability, etc.) are still not well understood. While at high irradiation doses, cellular death may be directly linked to DNA damage, at low doses, other cellular structures may be involved in what are...

journal_title：Radiation and environmental biophysics

authors： Cunha M,Testa E,Komova OV,Nasonova EA,Mel'nikova LA,Shmakova NL,Beuve M

更新日期：2016-03-01 00:00:00

abstract：:The potential mechanisms underlying the increase in serum iron concentration in gamma-irradiated mice were studied. The gamma irradiation dose used was 4 Gy, and cobalt-60 ((60)Co) source was used for the irradiation. The dose rate was 0.25 Gy/min. In the serum of irradiated mice, the concentration of ferrous ions dec...

journal_title：Radiation and environmental biophysics

authors： Xie LH,Zhang XH,Hu XD,Min XY,Zhou QF,Zhang HQ

更新日期：2016-03-01 00:00:00

abstract：:The hypoxic cytotoxic effect of chlorpromazine towards E. coli B/r was observed to be dependent on temperature of incubation and irradiation. Increasing the temperature of incubation from ambient to 37 degrees C followed by irradiation revealed that the organisms showed radiosensitivity of a magnitude which was two to...

journal_title：Radiation and environmental biophysics

authors： Shenoy MA,Singh BB

更新日期：1985-01-01 00:00:00