磁共振成像和遗传损伤:我们目前知道些什么?
来自明尼苏达大学的一位研究者发现吸烟可在数分钟内造成可致癌的遗传损伤。
A researcher from the University of Minnesota has found that smoking can cause damage to genes in a matter of minutes, which could then lead to cancer.
中华麦饭石可能具有治疗、减轻和预防由饮酒引起的遗传损伤的作用。
The results are that when the soak of Chinese Medical stone is added during the time of vernalization, contaimination and repairment the micronuclei frequency caused by the alcohol ca…
当细胞出现了遗传损伤,如太阳紫外线造成的DNA损害,这被认为是其自毁。
When cells become genetically damaged - such as the DNA damage caused by the sun's ultraviolet rays - they're supposed to self-destruct.
这里,我们已经证实了由于感染导致的遗传损伤,大多数可能被认为是环境的原因。
Here we have defined a genetic lesion that is permissive for an infection: a trait that most would regard as quintessentially environmental in cause.
目的比较外周血淋巴细胞和口腔脱落细胞彗星试验在丙烯腈作业人群遗传损伤评价中的效果。
Objective To compare the effect of Comet assay in peripheral blood lymphocytes and buccal mucosal cells on detecting genetic damage in workers exposed to acrylonitrile (ACN).
第三部分,采用彗星试验、微核试验和染色体畸变试验检测和评估职业接触铅人群的遗传损伤效应。
Finally, comet assay, micronucleus and chromosomal aberration test were used to study and estimate the genetic damage effect of lead on occupational exposure workers.
结论对丙烯腈接触人群进行遗传损伤监护时,外周血淋巴细胞彗星试验比口腔脱落细胞彗星试验更灵敏。
Conclusions When assessing the early genetic damage of ACN exposed population during health surveillance, Comet assay in peripheral lymphocytes was more sensitive than that in buccal mucosal cells.
此外,还探讨了泥鳅红细胞的微核来源和利用泥鳅红细胞核的遗传损伤监测河水水质的可行性及注意问题。
In addition, it also studied the sources of the erythrocytes in loach, the possibility to monitor the river water quality and the problems that must to be noticed.
不过,还有个悬而未决的问题:假定癌细胞内出现遗传损伤的情况,那么,哪种类型的损伤可以作为肿瘤存在的理想指标?
But it is an open question, given all the genetic damage in a cancer cell, as to which type of damage would be the best marker of a tumor's presence.
近来的研究显示,某些类型遗传损伤是很多肿瘤细胞的共同原因,导致蛋白激酶从细胞内部运动到细胞膜的表面。
Recent research has shown that certain types of genetic damage, common to many cancer cells, lead to the movement of PKB from the interior of the cell to its surface membrane.
目的:探讨焦炉工外周血淋巴细胞热应激蛋白70 (HSP70)表达水平及与外周血淋巴细胞遗传损伤之间关系及其意义。
Objective: To investigate the relationship between the expression of heat shock protein70 (HSP70) and genetic damage in coke oven workers and their functions.
利用蚕豆根尖微核技术研究农药乙蒜素和细菌溴腈对蚕豆根尖细胞的遗传损伤,测定蚕豆根尖细胞的微核率、有丝分裂指数和染色体畸变率。
With different concentrations of sewage and aluminum sulfate as a mutagen, pea root tip cells in the mitotic index, micro-rate and the rate of chromosomal aberrations are determined.
研究人员对65对双胞胎的皮肤损伤环境影响因素进行分析后发现,环境和生活方式对皮肤老化的影响大于遗传因素。
Their analysis of environmental skin-damaging factors in 65 pairs of twins hints that skin aging is related more to environment and lifestyle than genetic factors.
特别是,这项研究描述了一种乙酰基遗传“开关”,这直接导致了一只16个月大的白鼠记忆上的损伤。
Specifically, the study describes an acetyl genetic switch that produces memory impairment in aging 16-month-old mice.
此时,我们就有必要说说面容失忆症的多种形式:一种是后天的,病症发生在脑部损伤之后;一种是遗传的,就像萨克斯和克劳斯一样。
At this point, it's worth saying that there are various forms of prosopagnosia, an acquired version which people get after brain damage, and an inherited form, which Oliver Sacks and Chuck Close have.
遗传病,精神病相关的脑部失调和脑损伤都会对脑的正常运转有影响,并且扰乱身体其余部分的日常行动。
Inherited diseases, brain disorders associated with mental illness, and head injuries can all affect the way the brain works and upset the daily activities of the rest of the body.
在M_1所产生的叶绿素缺失中,大多数属于体细胞突变,或是由于辐射损伤所致,一般是不能遗传的;
Most of the chlorophyll deletion occurred in M1 were belonged to somatic mutation or caused by radiation injury so that they usually were not inheritable.
很久以前科学就明确了吸烟会导致癌症,但是一项新研究显示儿童能从吸烟的父亲那里遗传这种基因损伤。
The science has long been clear that smoking causes cancer, but new research shows that children could inherit genetic damage from a father who smokes.
结果表明,将神经网络和遗传算法用于结构损伤识别是有效的、可行的。
The results show that the NN and GA can be used in structural damage identification system effectively.
也许是因为我的听力损伤是遗传性的,与年龄无关,我并不对戴助听器感到丝毫窘迫。
Perhaps it's because my hearing loss is genetic and not age-related, but I am not at all embarrassed about my new bionic ears.
DNA修复对遗传信息的准确保存和确保细胞的正常功能是必需的,年龄和DNA损伤的关系一直存在疑问。
DNA repair is essential for the accurate preservation of genetic information and to ensure the healthy functioning of cells, and a connection between aging and DNA damage has long been suspected.
科学家知道这些损伤发生于出生后,所以说,是获得性的而非遗传性的。
Scientists know that the damage to the DNA occurs after birth and, therefore, is acquired rather than inherited.
结论原发性高血压是由DNA损伤引起的人类表型缺陷,该病症符合常染色体显性遗传,具延迟外显性。
Conclusion: the essential hypertension is the human phenotype blemish caused by injured DNA. It is compatible with an autosomal dominant inheritance and its performance is delayed.
这表明,环境中低浓度铅污染可增加血铅负荷和遗传物质损伤,并且可降低神经行为功能。
It suggested that the environmental lead pollution of low concentration may enhance the blood lead level and the genetic material damage, may decline the neurobehavioral function.
目的用碱性单细胞凝胶电泳技术检测苯作业工人外周血淋巴细胞DNA损伤,研究苯的遗传毒性。
Objective To detect DNA damage in peripheral lymphocytes of workers exposed to benzene by alkaline single cell gel electrophoresis and to study the genetic toxicity of benzene.
单细胞凝胶电泳被广泛应用于遗传毒理学、DNA损伤与修复的检测、环境污染检测、细胞凋亡机制的研究等诸多领域。
Single cell gel electrophoresis is applied for genetic toxicology, DNA damage and detection, environmental pollution detection, apoptosis mechanism research et al.
该结果提示苯妥英钠对细胞核遗传物质具有一定损伤作用。
It suggests phenytoin sodium has some injury to caryon genetic material.
该结果提示苯妥英钠对细胞核遗传物质具有一定损伤作用。
It suggests phenytoin sodium has some injury to caryon genetic material.
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