strand breaks 中文意思是什麼

strand breaks 解釋
絲條斷裂
  • strand : n 1 〈詩〉（海、湖、河等的）濱，岸，灘。2 〈the S 〉 （倫敦的）河濱馬路。vt vi 1 （使）（船等）觸...
  • breaks : 布雷克斯
  1. In this study, dna strand breaks in jm109 cells caused by - rays and the protective effect of lexa protein of deinococcus radiodurans have been studied by fluorometric assay of dna unwinding., the results indicated that the rate of dna strand breaks increased with the increase of - rays dose. however, when the concentration of lexa protein from 0. 1 g / ml to 10 g / ml, it still showed no protective effect on dna strand breaks, then lexa protein of deinococcus radiodurans was n ' t radioprotector

    本研究採用了dna解旋熒光法檢測由射線所致的dna鏈斷裂的損傷程度以及抗輻射菌lexa蛋白的輻射防護作用，在輻照前加入不同濃度的lexa蛋白，檢測dna鏈的斷裂，結果表明dna鏈的斷裂程度隨著射線輻照劑量的增加而增強，抗輻射菌lexa蛋白對射線所致dna鏈斷裂的修復不起作用，進一步說明抗輻射菌lexa蛋白不起輻射防護作用。
  2. Mms, a kind of dna - damaging agent, predominantly methylates ring nitrogens of pyrine, leading to dna double - strand breaks, point mutation and so on

    甲磺酸甲酯（ methylmetbanesulfonate ， mms ）是一種能夠損傷dna的烷化劑，主要使dna嘌呤堿基上的o 、 n甲基化，造成dna雙鏈斷裂、點突變。
  3. In this experiment, dna double strand breaks induced by heavy ions in the early period were investigated with atomic force microscopy ( afm )

    本實驗旨在用原子力顯微鏡（ afm ）研究重離子輻射后早期的dna雙鏈斷裂。
  4. The damage of dna is the most basic and important sector in this process. meanwhile, the double strand breaks ( dsb ) of dna molecule is the primary damage of all biological effectiveness induced by ionizing radiation

    Dna的輻射損傷是其中最基本和最關鍵的一環，而dna的雙鏈斷裂（ dsb ）又是輻射引起的各種生物學效應中最重要的原初損傷。
  5. By means of the afm made in shanghai aijian co., ltd. and digital instruments co., ltd ( u. s. ), the dna strand and their fragments were observed successfully. 2. by comparison with afm experiments of three categories of ion beams, the result has been observed in qualitatively : in the uniform dose, the higher let heavy ions have caused more double strand breaks than the lower let radiation

    通過afm對實驗結果的觀測，可以定性地得知：在同等劑量條件下，高let值的重粒子與低let的射線相比， dna雙鏈斷裂的數目要多一些；在相同let條件下，隨劑量增加dsb的片段變短、數量增加。
  6. Exponential phase cultures of the dr rl strain survive exposure to gamma radiation at doses as high as 5, 000 gy without loss of viability or evidence of dna damage induced mutation. 6000 gy of irradiation will induce approximately 200 dna double - strand breaks in dr chromosomes, but it is still able to reconstruct a functional genome from chromosomal fragments without any mutation

    指數生長期的r1菌株即使在5kgy劑量的-射線照射后，其生長能力也未受影響， 6kgy -射線照射后染色體基因組產生約200個的雙鏈斷裂碎片，但是其基因組dna經修復后沒有引起任何的突變。
  7. The results showed that : significant increase in dna migration and comet frequency in the spleen, thymus, bone marrow and peripheral lymphocytes were induced after intraperitoneal treatment of mtx at a dose of 1. 25 ~ 5mg / kg. no obvious increase in dna single strand breaks was observed in the liver, kidney, testicle and stomach of the mice with the same treatment. the migration of nuclear dna and comet frequency of spleen, thymus, bone marrow and peripheral lymphocytes in the dose - response study showed a dose - dependent increase

    實驗結果：腹腔注射5mg kgmtx后3h可誘發小鼠體內脾細胞、骨髓細胞、胸腺細胞和外周血淋巴細胞的dna單鏈斷裂且隨時間延長損傷程度增大，於12h達到高峰，但未觀察到對肝、腎、胃和睪丸細胞的山窗民科大學碩士學位論文影響;核dna損傷程度隨著用藥劑量的增大而增大。
  8. This organism can repair at least 150 double strand breaks of each chromosome induced by ionizing radiation without lethality or mutagenesis within several hours

    該菌能在輻照后幾小時內準確無誤地修復每條染色體上至少150多個dna雙鏈斷裂。
  9. Hmre11 plays an important role in u937 cellular response to dna double - strand breaks following etoposide

    雙鏈斷裂后的修復中發揮重要作用
  10. Experiment about single - strand dna breaks in permanent middle cerebral artery occlusion of rats

    單鏈斷裂損傷的實驗研究
  11. 3. dna double strand breaks ( dsbs ) induced by ion beams of gel electrophoresis experiment has shown positive linear with dose, i. e., double strand breaks will increase as the dose increased

    分子生物學技術? ?電泳技術分析結果表明，離子輻射造成的dna雙鏈斷裂（ dsb ）與粒子劑量呈線性正相關關系，即隨著粒子劑量值增大， dsb量也逐漸上升。
  12. Numerous lesions that include sugar alteration, base damage, and single - and double - strand breaks together with dna - dna crosslinks have been identified in irradiated dna. dna double strand breaks ( dsbs ) are considered as the most important initial damage of all biological effects induced by ionizing radiation

    電離輻射可引起dna多種類型的損傷，如堿基損傷、糖基損傷、單鏈和雙鏈斷裂以及dna交聯等，其中雙鏈斷裂（ dsb ）是輻射所致生物效應中最重要的原初損傷。
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