但是，两组光周期被打乱的老龄雄鼠的死亡率则高多了。
But the number of deaths in the two groups whose day-and-night cycles had been tampered with was far higher.
果不其然，三组内年轻雄鼠的状况相对良好——仅死亡一只。
As might be expected, the young mice in each of the three groups fared relatively well; just one died.
因此，自然存在的社群环境能影响幼年雄鼠的形态生理特征发育。
Thus a naturally occurring social environment can influence development of morpho-physiological characteristics of young males.
肥胖雄鼠的雌性后代身上600个以上的胰岛出现了基因表达的改变。
The daughters of the obese male rats showed an altered expression of more than 600 pancreatic islet genes.
中译：我们断定三乙醇胺导至雌鼠的肝脏肿瘤，以及令雄鼠的肝脏血管血瘤稍微增大。
We conclude that triethanolamine caused liver tumors in female mice and may have caused a slight increase in hemangiosarcomas of the liver in male mice.
这也许就合理的猜测了那些成为探讨课题的老鼠比营养充足雄鼠的后代更容易发胖的现象。
That, it might reasonably be assumed, would have allowed the mice in question to lay down any surplus calories as fat more easily than the offspring of well-fed fathers could have done.
总之，不论是气味选择还是个体选择，布氏田鼠不仅受到被选择雄鼠的地位影响，还与雌鼠的生理状态有关。
The female choice of L. bramdtii was not only influenced by male hierarchy, but also influenced by the physiological status of female vole.
相比之下，17-α雄甾二烯抑制人和鼠组织的肿瘤细胞增殖和介导肿瘤细胞的凋亡。
In contrast, 17 alpha androstenediol inhibits proliferation and mediates apoptosis in tumor cells of murine and human origin.
雄鼠有时候会吃掉他的幼崽而不是养育它们，因此对于研究那些不存在杀婴行为的物种来说是，老鼠不是一个好的模型。
Male rats sometimes eat their young rather than nurture them, which makes them a poor model for studying how fatherhood affects the brains of species that frown on infanticide.
但是它们的标记点和正常的雄鼠相比明显减少。
But they deposited significantly fewer urine marks than the normal males.
而在雌鼠占绝对优势的分组中的雌鼠与雄鼠在一起时，这样的行为会减少。
The females did this less when they were with a male rat that had grown up in a female-biased litter.
洛克·菲勒大学的一项研究表明，被具有统治地位的雄鼠欺压过的老鼠在有新的同伴时，总是表现出不寻常的紧张情绪。
In a new study from Rockefeller University, mice that had been pushed around by dominant males grew unusually nervous in the presence of new company.
但是同时他们确实发现了雄鼠生长分组对它们行为的不同之处。
But they did find differences in behavior based on the kind of litter in which the males grew up.
这些雄鼠任然保留了肌肉和其他部位的睾丸酮受体，因此他们的身体仍具有阳刚性；研究者通过观察小鼠对迅速增加的和正常循环的激素的反应。
These males still had androgen receptors in their muscles and elsewhere, so they had masculine bodies, and they experienced the testosterone surge and responded to normally circulating testosterone.
在气味标记上发现同样的结果，和正常雄鼠一样，转基因鼠会在笼子的任何角落里撒尿(不同于雌鼠，雌鼠有固定的厕所)。
The same was found for scent-marking. Like normal males, the mutant mice urinated in various spots around their cage (unlike females, who create a single latrine).
我更偏向的是“在雌鼠堆里长大的雄鼠之所以不讨雌鼠喜欢，是因为它们分泌物的气味不足或者不同。”
My favorite theory is that “males reared in a female-based litter may be less attractive to females because they secrete less or different odor cues.”
涉及到吸入一些化学药品转变成的幻想剂所带来的放松，Touhara说：“雌鼠不得不触摸雄鼠，因为这个幻想剂不是像香水那种易挥发的混合物。”
"She has to touch it, because this is not a volatile compound like a fragrance," Touhara said, referring to the ease with which some chemicals turn into vapor.
即便就雄鼠而言，某些组与对照组之间的差别从统计学角度讲也不是很明显。
Even for males, the differences between particular groups of rats and the control group were not statistically significant.
目的研究盐酸曲唑酮对去势雄鼠血清一氧化氮（NO）水平的影响。
ObjectiveTo study the effect of trazodone on serum NO level in castrated male rats.
周五公布的这项初步研究发现，手机辐射似乎增加了雄鼠患上脑部和心脏肿瘤的风险。
The preliminary study, released Friday, found that radiation from cellphones appears to have increased the risks that male rats developed tumors in their brains and hearts.
受到最高强度辐射的雄鼠有大约5%至7%患上了心脏神经鞘瘤，而对照组中没有此类病例。
About 5 to 7 percent of the male rats exposed to the highest level of radiation developed schwannomas in their hearts, compared with none in the control group.
约2%至3%受到辐射的雄鼠患上了恶性胶质瘤——它是一种脑部癌症——而没有受到辐射的对照组没有此类病例。
About 2 to 3 percent of the male rats exposed to the radiation developed malignant gliomas, a brain cancer, compared with none in a control group that was not exposed to radiation.
特别是当一个陌生的雄鼠进入小鼠群时会受到攻击。
Typically, a strange male entering another male's cage is met with a fight.
把怀孕母鼠饲养在感染了果氏巴贝虫的雄鼠隔壁，果氏巴贝虫是一种血寄生虫，它不产生明显的症状，但导致某种程度的贫血。
Pregnant female mice were housed next to males infected with Babesia microti, which is a mild blood parasite causing few symptoms, but some anaemia.
雄雄相遇时，优势鼠的行为序和从属鼠的行为序有明显的区别，优势鼠指向接近和攻击的行为多于从属鼠，而从属鼠指向逃离的行为较多。
In male-male pairs, the dominance had more behaviours getting to approaching and attacking and less behaviours getting to fleeing than the subordinate individuals.
在几项研究中，当将处于压力状态下的雌鼠的卵巢(雌性生殖器官)被摘除，他们产生的化学物质就变得和雄鼠一样多。
In several of the studies, when stressed-out female rats had their ovaries (the female reproductive organs) removed, their chemical responses became equal to those of the males.
他们制造了这些microRNA的混合物，并将其注射入成熟雄鼠授精产生的胚胎中。
They created a cocktail of microRNAs and injected them into embryos from mellow fathers.
派斯克说“歌唱”的老鼠大多数都是雄鼠。
总共15 6只5周龄的雄鼠（其中82只LID小鼠，74只对照鼠）接受了肿瘤移植。
A total of 156 male mice at 5-weeks of age (74 control mice and 82 LID mice) received tumor transplants.
总共15 6只5周龄的雄鼠（其中82只LID小鼠，74只对照鼠）接受了肿瘤移植。
A total of 156 male mice at 5-weeks of age (74 control mice and 82 LID mice) received tumor transplants.
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