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- 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。
- 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。
- Sperm DNA damage 精子DNA损伤
- Such men might hae een less DNA damage in their sperm than the study groups, the researchers note. 研究人员称，这部分人精子中的DNA损伤程度可能轻于研究组（的损失程度）。
- Curbing DNA damage might make cancer less likely. 卷曲的DNA损伤导致癌症也很少。
- Catechins may also prevent DNA damage caused by carcinogens. 儿茶酚还可能预防致癌物质引起DNA损伤。
- 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。
- GEN caused DNA damage but not due to oxidant effect. GEN导致细胞DNA断裂,但不是由其氧化效应引起。
- 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。
- Both UV-A and UV-B irradiation induced DNA damage in mesophylls. 彗星检测结果表明,九里香叶片DNA的损伤程度与UV-B辐射的剂量呈正相关;
- 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。
- 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。
- Using such an early donor cell might avoid the risk of accumulated DNA damage. 使用这样的一个早期供体细胞可能避免积聚DNA损伤的风险。
- 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 DNA damage become more serious as the dose of 1,2,4 - TCB increases. 随着染毒剂量增加，DNA损伤加重。
- DNA damage by mutagens has very serious consequences for DNA replication. 试比较切除修复和光复活机制是如何清除由紫外线诱导形成的嘧啶二聚体的？
- The modulation of CTAB on the thermal stability of salmon sperm DNA and herring sperm DNA have been investigated by employing differential scanning calorimetry and ultraviolet spectroscopy methods. 用差示扫描量热法和变温紫外光谱法研究了CTAB对鲑鱼精DNA及降解的鲱鱼精DNA热稳定性的影响,发现CTAB使鲑鱼精DNA的热稳定性降低,但降低程度随CTAB浓度的增大而先增大后减小;
- Methods: The sperm DNA were analyzed with the flow cytometer.It was from the quantity of haploid, diploid and polyploid of DNA to judge the quality of sperm and its improvement after treatment. 方法:用流式细胞仪分析患者精液DNA,从DNA的单倍体量、二倍体量及多倍体数量来判断精液的质量以及服五子衍宗丸合加味肾气丸后对精液质量的改善。
