نتایج جستجو برای: gamma rays and mutant line

تعداد نتایج: 16915120  

M.M. Ahmed, M.R. Mohamed, S.S. Tawfik, Z.S. Said,

Background: Chamomile essential oil (CEO) hauls out from Matricaria chamomilla L., is a well-known anti-oxidant. Oxidative stress induces clastogenic and biochemical disorders after γ-irradiation of animals. Materials and Methods: Mice were divided into five groups. Control group received vehicle only.              &nbs...

Water deficient stress is one of the major limiting factors of wheat production in arid and semiarid areas of the world such as Iran. Under water deficient stress photosynthesis is limited and remobilization of assimilates stored in stems is more important to grain filling. In order to molecular analysis of fructan remobilization in wheat stem (penultimate) under terminal water deficit stress, ...

2008
W. Wang Y. Zhao J. H. You

The recent discoveries of X-ray lines in the afterglows of gamma-ray bursts (GRBs) provide significant clues to the nature of GRB progenitors and central environments. However, the iron line interpretation by fluorescence or recombination mechanism involves the request for the large amount of iron material. We argue that the very strong iron line could be attributed to an alternative mechanism:...

Journal: :iranian journal of radiation research 0
h. mozdarani department of medical genetics, school of medical sciences, tarbiat modares university, tehran, iran m. salimi department of medical genetics, school of medical sciences, tarbiat modares university, tehran, iran m. froughizadeh novin medical radiation institute, tehran, iran

background: currently available radioprotectors are poorly tolerated in man and the general use of aminothiols is compromised by their side effects. this study was carried out to test and compare the radioprotective potential of cimetidine and famotidine against lethally gamma irradiated nmri mice. materials and methods: adult male nmri mice in groups of 10 were exposed to various doses of gamm...

Journal: :iranian journal of radiation research 0
h. mozdarani dr. h. mozdarani, department of radiology, school of medical sciences,tarbiat modarres university, p.o.box 14115-111, tehran, iran m. shahidi

background: previous investigations have revealed, cimetidine, a histamine h2-receptor antagonist, show radioprotective effects against gamma- and neutron-induced micronuclei in bone marrow erythrocytes. in this study, the anticlastogenic effects of famotidine and ranitidine, which act similar to cimetidine as histamine h2-receptor antagonists, was investigated. materials and methods : balb/c m...

Journal: :iranian journal of radiation research 0
m. salimi department of genetics, research and science center, azad university and royan institute, tehran, iran h. mozdarani department of medical genetics, school of medical sciences, tarbiat modares university, tehran, iran

background: the present study has been carried out to investigate the effects of preovulatory stage gamma-irradiation of female mice in the absence or presence of vitamin e on numerical chromosome abnormalities in 8-cell embryos after mating with non-irradiated males. materials and methods: the 8-11 weeks adult female nmri mice were whole body irradiated at preovulatory stage (post pmsg injecti...

ژورنال: سلامت و محیط زیست 2019

Background and Objective: Humans are always exposed to ionizing radiation that could potentially have harmful effects. The aim of this study was to evaluate the background gamma dose rate, the estimated annual effective dose, and the excess cancer risk assessment in Dargaz. Materials and Methods: This study was a cross sectional study which was conducted in January- March and July – September ...

Journal: :Biodiversitas 2023

Abstract. Ishak I. 2023. Genetic variability of mutant rice (Oryza sativa) genotype induced by gamma rays. Biodiversitas 24: 3300-3306. Rice seeds Sidenuk cultivars were irradiated rays creating a broad spectrum genetic among individual plants at M3 generation progeny. Gamma Irradiated created Mutation the somatic cells population in mature embryos M1 generations. Somatic cell mutation influenc...

A.A. Elkady , S.S. Tawfik,

Background: Radiation‐induced acute lung damages are refractory side effects in lung cancer radiotherapy (RT). Prospective study investigates the possible role of piperine (Pip) as anti-inflammatory agent against γ-rays-induced lung tissue lesions in an applicable rat model. Materials and Methods: Fifty-six Sprague-Dawley rats were divided into four groups: Control, rats were administered...

Journal: :iranian journal of radiation research 0
m. amiri department of nuclear medicine, babol university of medical sciences, babol, iran r. abdi department of radiology, mazandaran university of medical sciences, sari, iran a. shabestani monfared department of medical physics, babol university of medical sciences, babol, iran

background: the effect of natural background radiation on health is still controversial. however, it is clear that it depends on the dose received by the population. the estimation of external natural background gamma rays received by the population of caspian coastal provinces in the northern part of iran was the main goal of this study. materials and methods: gamma rays was measured using cal...

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