精子减少

The pupae were exposed to 9 krad 60Co-γ rays for two days before emergence.The adults were dissected and many mature sperms could be seen in the male flies.There were no significant difference in the form,number and vigor of sperm between irradiatid and unirradiated male flies,but there were some abnormal ultrastructurail changes in the sperm of irradiated male flies such as the appearence of vacuoles in nutrient cells,disarrangement of sperms,variation of the number of chondriosome derivates,axonemes ction of formation and abnormal cell division of sperm cells.

用9krad辐照羽化前2天的蛹，成虫羽化后解剖观察，雄虫已有大量成熟精子，精子形态、数量和活力与未经辐照处理的雄虫无显著差异，但其超微结构则发生了某些异常变化，如营养细胞出现空泡、精子排列零乱、线粒体衍生体和轴丝增多或减少、构型被破坏、精子细胞分裂异常等。

Sertoli cells can provide a material basis and a favorable microenvironment for sperm. After X radiation, spermatogenic cells and mitochondrion dramatically swelling and lysis with a decrease of mitochondrial cristae, with the prolonging of time, the mitochondria damage get even worse, mitochondrial crista is disappeared.

Sertoli细胞在精子发生过程中可为精子发生提供物质基础和能力，为精子发生提供有利的微环境，对精子的生成有复杂的作用。X射线照射后即出现生精细胞和支持细胞线粒体明显肿胀，线粒体嵴减少，且随着时间延长，线粒体形态的损害进一步加重，线粒体数量减少，线粒体嵴消失。

"It is important to stress that even if the association between cycling and poor sperm morphology is correct, men training for triathlons are spending much more time in the saddle than the average social cycler or someone who might cycle to and from work."

"值得注意的是，即便骑车会导致精子减少的观点是正确的，骑车爱好者和骑车上下班的男同胞们也不必担心，因为专业运动员的训练强度要比他们高得多。"

Compared with the control group,after ig125 mg/(kg·d sasanqua saponin sterilant for 4 weeks,(92.1%) alive sperm and(52.6%) sperm motility on male mice could be obviously reduced,and(64.0%) gravidity rate and(67.4%) alive embryo on female mice could be significantly decreased.

与生理盐水对照组比较，125 mg/油茶皂素不育剂灌胃给药4周后，可以明显降低雄性小鼠的活精子数(92.1%)和精子活力(52.6%)，可以显著减少雌性小鼠的妊娠率(64.0%)和活胎数(67.4%)。

Compared with the control group, after ig 125mg/ sasanqua saponin sterilant for 4 weeks, 92.1% alive sperm and 52.6% sperm motility on male mice could be obviously reduced, and 64.0% gravidity rate and 67.4% alive embryo on female mice could be significantly decreased.

与生理盐水对照组比较，125mg/油茶皂素不育剂灌胃给药4周后，可以明显降低雄性小鼠的活精子数(92.1%)和精子活力(52.6%)，可以显著减少雌性小鼠的妊娠率(64.0%)和活胎数(67.4%)。

We have done some studies to look at the quantity and quality of the sperm, and intersex bass did have somewhat lower sperm count as well as less motor sperm, she says.

我们已经做了一些研究，看看精子数量和质量，雌雄同体低音也有所降低精子数量减少以及精子运动，她说。

Results In the medium and high dose F0 groups, it was observed that the atrophy and incrassation of seminiferous tubule, decrease of spermatogenesis, hyperplasia of interstitial tissue, especially in high dose groups spermatozoon abnormality and nucleolus concentration in the rats testis after DU ingestion for 14 months. The changes became more severe with the prolongation of DU ingestion. Such changes occurred in filial rats (F1) after DC ingestion for 5 months. In the medium and high dose F0 groups, it was observed that a little atrophy of kidney glomerulus, hyperplasia of interstitial tissue after DC ingestion for 14 months, and kidney glomerulus fibrosis happened after DC ingestion for 20 months, such changes occurred in filial rats (F1) after DC ingestion for 5 months In the medium and high dose F0 groups, splenic germinal center and periarterial lymphatic sheaths were hyperplasia , companies with lymphopoiesis after DC ingestion for 7 months, splenic white pulp became more small and sparse after DC ingestion for 20 months.

结果 F0代的中、高剂量组大鼠摄入贫铀14个月后可见雄性的精曲小管萎缩，管壁增厚呈空虚网状，生精细胞层次减少，间质细胞增生，但仍见有精子生成；高剂量组可见到精子呈异型性改变，细胞核浓缩深染，且随着摄入时间延长改变愈趋明显；F1代大鼠摄入贫铀5个月后就有上述改变且更为严重。F0代中、高剂量组大鼠摄入贫铀14个月后肾小球轻度萎缩，间质增生明显，20个月时肾小球萎缩纤维化；F1代大鼠摄入贫铀5个月后就有上述改变。F0代中、高剂量组摄入贫铀7个月时脾脏生发中心和淋巴鞘增生，淋巴母细胞增生活跃，20个月时脾小体减少，生发中心稀疏；F1代大鼠摄入贫铀早期和晚期有类似改变。F0和F1代高剂量组摄入贫铀早期肝脏有炎症细胞浸润，晚期骨髓有核细胞减少，脂肪细胞增加。

The role of nicotine smokers breathe in the production of sperm in the seminiferous tubules of spermatogenic epithelium to spermatogenic dysfunction, which produced a decrease in the number of sperm quality lower.

吸烟者吸入尼古丁作用于生产精子的曲细精管的生精上皮，使其生精功能减退，因而生产出来的精子数目减少，质量降低。

Group in the polyester in four patients (36%) to the first 14 months significantly reduced when the sperm count; in the blend in a group (9%) to 10 months, suffering from oligospermia, and that is, the control group semen quality cotton group no change.

在聚酯组中有4位病人（占36％）到第14个月时精子数明显减少；在混纺组中有1位（占9％）到第10个月时患了少精子症，而对照组即纯棉组的精液质量无改变。

The "normal" sperm concentration for a man is between 80 and 120 million per millilitre, and the average of men who ate on average a portion of soy-based food every other day was 41 million fewer.

一个男人&正常&的精子数量平均在每毫升8，000万个到1.2亿个之间，平均每两天吃一次豆腐的试验者精子数量每毫升减少了4，100万个。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐