查询词典 spermatogenic

Results Compared with the control group,nuclearpycnosis appeared in most spermatogenic cells of the alcohol group.

方法雄性成年昆明种小鼠50只，随机分为5组：正常组、酒精组、酒精+VC组、酒精+VE组和酒精+VC+VE组，连续灌胃23 d。

Experiments show that:"Crown 3000" not only increases spermatogenic function effectively and prolongs fertility, but also prevents anaplasia of spermary and ovum effectively, and prolongs the coming of menopause and senescence process and keeps vigor of body.

试验表明："顶点 3000"不但能有效增强生精功能，延长生育能力、还能够有效阻止睾丸和卵子退行性变化，延缓更年期的到来，延缓衰老进程，保持身体活力。

Experiments show that:"Crown 3000" not only increases spermatogenic function effectively and prolongs fertility, but also prevents anaplasia of spermary a nd ovum effectively, and prolongs the coming of menopause and senescence process and keeps vigor of body.

试验表明："顶点3000"不但能有效增强生精功能，延长生育能力、还能够有效阻止睾丸和卵子退行性变化，延缓更年期的到来，延缓衰老进程，保持身体活力。

We suggest that the BOULE transcript plays an important role in human spermatogenesis and is significant for predicting the presence of testicular sperm in patients with spermatogenic failure.

因此我们认为 BOULE 的转录量在人类精虫制造的机转中扮演一个重要的角色，而且可以用来预测取精手术的成功与否。

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。

Results The diagnostic correspondent rate of obstructive and nonobstructive azoospermia by seminal spermatogenic cells examination was 85%, 95.1% respectively. The spermatogenic arrest at spermatid level, spermatocyte level and spermatogonium level or sertoli cells only were 14, 21 and 6 cases respectively.

结果 精液生精细胞学检查对梗阻性和非梗阻性无精症分型诊断的符合率分别为85%、95.1%。41例非梗阻性无精症中，生精阻滞阶段在精子细胞、精母细胞、精原细胞分别为14例2、1例和6例。

Results: Of all the semen samples, 8 were HCMV positive, 4 HSV-Ⅱ positive, but none were both HCMV and HSV-Ⅱ positive. HCMV late antigens were positively and HCMV early antigens negatively expressed in the spermatogenic cells of the 8 HCMV positive cases. In the 4 HSV-Ⅱ positive cases, 3 were positively and 1 weakly positively expressed. In the semen of the 12 positive cases were found large numbers of immature spermatogenic cells, with different manifestations of apoptosis, such as chromatin pycnosis, vacuoles, damaged nuclear membrane, and apoptotic bodies, but without virus infection-induced specific morphological alteration.

结果：83例精液样本PCR检测HCMV阳性8例，HSV-Ⅱ阳性4例，未发现2种病毒同时阳性病例。8例HCMV阳性病例ICC标记生精细胞HCMV晚期抗原均见阳性表达，HCMV早期抗原均为阴性表达；4例HSV-Ⅱ阳性病例ICC标记生精细胞3例阳性表达，1例弱阳性。12例病毒阳性病例均发现较多未成熟生精细胞，并有不同程度的核染色质固缩、出现空泡、核膜破损、核崩解、凋亡小体等凋亡现象，但未能找到病毒感染的特异性形态学改变。

The testis index, testis volumes were same as the annual changes of testis mass. The curves of annual variation were all unimodality.2 The spermatogenetic cycle of Myospalax cansus comprises seven stages with significant features: Stage I , from February to April, the testis were at the stage of spermatogonia proliferation. In this period, testis index and the number of spermatogonia began to rise. Other spermatogenic cells had not yet formed; Stage II to III, from March to April, primary spermatocyte meiosis period. The testis index was highest in this stage, and spermatogenic cells were in spermatocyte stage, the primary spermatocyte meiosis generated to secondary spermatocyte; Stage IV, from April to May, spermatocytes continued to split, germ cells appeared in seminiferous tubules; Stage V, in May, sperm formation, spermatids of seminiferous tubules were transformed to spermatozoa, a large number of sperms existed in the lumen; Stage VI, spermatozoa emission period, from May to June, testis index were a significant drop and mature spermatozoa excluded gradually; VII, the testicular activity ceased basically from July to September, November to January of the following year, the spermatogenic activity ceased completely. Therefore, Myospalax cansus are animals of seasonal reproduction, spermatogenesis cycle is discontinuous type.

睾丸系数、体积和重量的年周期变化规律一致，变化曲线呈现单峰型。2甘肃鼢鼠雄性生殖腺的年周期活动由7个特征明显的时期构成：Ⅰ期，2～3月份，精原细胞增殖期，睾丸系数开始上升，精原细胞进行有丝分裂，其他生精细胞尚未形成；3～4月份为Ⅱ～Ⅲ期，初级精母细胞成熟分裂期，睾丸系数达到最大，生精细胞大多处于精母细胞阶段，初级精母细胞减数分裂生成次级精母细胞；Ⅳ期，4～5月份精母细胞继续进行分裂，精细胞在生精小管内出现；Ⅴ期，5月份，精子形成期，曲细精管中精细胞变态成精子，在管腔中存在大量的精子；Ⅵ期，精子排放期，5～6月份，睾丸系数显著下降，成熟精子从生精小管上脱离，逐渐排除；Ⅶ期，精原细胞停滞期，7～9月份睾丸生精活动基本停滞，11～翌年1月，生精活动完全停止。

Objective:To study the effects of formaldehyde on Bcl-2, Bax expression in spermatogenic cell of mice and ultrastructural changes in spermatogenic cell.

目的：研究甲醛对小鼠睾丸生精细胞Bcl-2、Bax蛋白表达及超微结构的改变。

Animals, as material, were used to study the toxicity of outer substance and made sure the estrogen effect of BBP by whole animal experiment, and the chronic toxicity of BBP was studied, designed and valued through several dosages and different exposed time. The result showed that BBP could make testis, epididymis and prostate withdrawl. Tectology changes were observed in testis, epididymis and liver. Especially the atrophy and degeneration of seminiferous tubules, decrease of spermatogenic cell and the turbulence of Sertoli cell and spermatogenic cell of seminiferous epithelium were also observed. The linkage between cells vanished.

明确了BBP的雌激素效应，并分别用多剂量和不同染毒时间来研究、设计、评价BBP在体内的慢性毒性，结果表明：BBP能引起雄鼠睾丸、前列腺、附睾性腺的萎缩和肝脏肿大，改变睾丸、前列腺、肝脏的组织形态学，尤其引起睾丸曲细精管萎缩、变性，各级生精细胞减少，生精上皮内生精细胞和Sertoli细胞结构明显紊乱，细胞间连接结构消失等。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。