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{Sperm DNA fragmentation negatively correlates with velocity and fertilization rates but might not affect pregnancy rates. 精挑细选的好精虫．精虫DNA碎片是否影响怀孕？
Sperm DNA fragmentation 精子DNA碎片
Objective: To explore the effects of cryopreservation on sperm DNA integrity of infertile men. 摘要目的探讨冷冻保存对不育患者精子核DNA链完整性的影响。
Study on Interaction between Hematoporphyrin Dihydrochloride and Herring Sperm DNA by Spectroscopy[J]. 引用该论文 Li Hongbo;Ta Honggui;Wang Xingming;Wang Suqin;Ding Lisheng.
Raman spectra of herring sperm DNA in aqueous solution and after UVA &UVB ultraviolet radiation by 0. 本文检测了鲱鱼精DNA水溶液和经UVA和UVB紫外线辐射后的拉曼光谱。
A ladder-like pattern of DNA fragmentation appeared upon agarose gel electrophoresis. 琼脂糖凝胶电泳可见“梯状”现象;
Cryopreservation of human spermatozoa and sperm preparation techniques all influence the integrity of sperm DNA. 同时，精子低温冷冻保存和诸多体外处理技术均能影响精子DNA的完整性。
The genomic DNA of MTZ treated T. vaginalis was extracted and DNA fragmentation was analyzed. 在不同的时间间隔进行活细胞计数。
Methods With flow cytometry,the DNA fragmentation by DM in rat brain was measured. 目的研究溴氰菊酯（DM）对大鼠脑细胞DNA的损伤作用。
There is increasing evidence that sperm DNA anomalies may lead to infertility,abortion,stillbirth,fathead and chromosomal diseases. 传统的精液检查往往不能找到精子DNA完整性异常患者的不育原因,因此对这部分患者进行精子DNA完整性检查具有更重要的意义。
DNA fragmentation, expression of tissue transglutaminase II, BAX and BCL-2 were isualized immunohistochemically. 用免疫组化检测方法观察DNA片段，组织中转谷胺酰胺酶II型表达，BAX和BCL-2的表达。
The interaction of metal complex of norfloxacin(NFLX) with herring sperm DNA and its characteristic were studied by UV and visible spectrophotometry. 用紫外可见分光光度法研究了诺氟沙星(NFLX)的光谱特性及其金属络合物与鲱鱼精DNA的相互作用。
Transglutaminase II expression was found only in cells with a strong staining for DNA fragmentation. 转谷胺酰胺酶II 仅在DNA断裂的强染色中发现有表达。
Method: Sperm DNA integrity of 40 semen samples from nonoligospermatism infertile men were detected by the using of comet assay before freezing and after thawing. 方法采用彗星试验检测40例非少精子症不育患者精液冷冻前及复苏后精子核DNA链的完整性。
The sequencing result of antisense DNA fragment was in accordance with the known LMP1 gene. 结果 :酶切产物和PCR产物的凝胶电泳显示 4 0 0bp左右的目的基因片段 ,测序结果显示与已知LMP1基因序列一致。
Oxidative stress,deficiencies in natural processes such as chromatin packaging and abortive apoptosis are the main factors that lead to sperm DNA damage. 氧化胁迫、精子染色质包装或分离异常、凋亡异常发生等因素可引起精子DNA损伤。
A DNA fragment (0.8kb) from exon 11 to exon 12 of low-density lipoprotein (LDL) receptor gene was obtained by PCR. 用PCR方法扩增了低密度脂蛋白(LDL)受体基因外显子11-内含子11-外显子12片段;长约0.;8kb。
He studied 118 men with above-average sperm DNA damage and found the quality of their sperm increased significantly after they were told to ejaculate daily for seven days. 格里宁对118位男性进行了研究，这些男性的精子DNA受损程度高于平均水平。研究结果发现，在要求被调查者连续七天射精之后，他们的精子质量显著改善。
Insert and ligate any DNA fragment into a vector such as plasmid or viral vector, to form a recombinant DNA. 通常重组DNA一词指的是将任何细胞来源的DNA片段接在染色体外的能迅速复制的质粒或病毒载体。
Conclusion Increase in cytoplasmic calcium activates endonuclease(s) which causes DNA fragmentation at internucleosomal sites and neuronal apoptosis. 结论胞浆钙离子升高激活内源性核酸内切酶，导致DNA核小体间断裂，启动神经细胞凋亡。