| 1. | The basal lamina of seminiferous tubules thickened gradually with aginy .
几，有利j一人鼠的性成熟。 |
| 2. | Study on the tissue structure changes of the seminiferous tubules in the testis of the rat with aging
大鼠生精小管组织结构增龄变化的研究 |
| 3. | The results were as follows : l . the microvascular distribution : the capillary vessel of rat testis were distributed among seminiferous tubules
结果如下： 1微血管分布：大鼠睾丸的微血管分布于睾丸间质内。 |
| 4. | Blood - testis barrier is the harrier between capillary vessel and seminiferous tubule which is important to produce sperm and maintain male procreation function
血睾屏障对精子的正常发生及雄性生殖功能的维持具有重要的作用。 |
| 5. | Differential display rt - pcr two populations of cells ( dna contains are 2n and 4n ) in seminiferous tubule were sorted , the fragments specifically expressed in 4n cells were obtained and sequenced . 2
差异显示pcr分离曲精小管中的dna含量为2n和4n的细胞群，比较两群细胞的基因表达差异，获取在4n细胞中特异表达的表达序列标签( expressedsequencetagsests ) 。 |
| 6. | The capillary vessel number in every unit area increased and the microvascular wall incrassated gradually with aging . the number ratio between capillary vessels and seminiferous tubules were on the trend of increase from 3 weeks to 3 months and decrease from 3 months to 12 months
随着增龄，单位面积内微血管数目逐渐增多；管壁也明显增厚；微血管数与生精小管数的比值从初生后到3月龄逐渐增大，从3月龄到24月龄呈减小的趋势。 |
| 7. | Although with these methods , spermatids can be isolated manually under the microscope for immediate use , it is not possible to obtain large populations of purified spermatids . but repeated biopsies for retrieving spermatids can further compromise the already deficient seminiferous tubules of patients
然后在显微镜下从中手工选择精子细胞供立即穿刺使用，但不可能获得大量纯化的精子细胞，而反复活检获取精子细胞将进一步损伤患者已有缺陷的睾丸精曲小管( seminiferoustubules ) 。 |
| 8. | Then the arterile eminted intertubular capillaries and peritubular capillaries forming rope - ladder - like pattems . then the venule were collected and became testis veins , then mass into rete venosum , finally some venule formed pampiniform plexus and others entered into varicosity . 3 . changes or testicular microvascular architecture : testicular capillary vessel formed intertubular capillaries and peritubular capillaries . but donot formed rope - ladder - like patterns capillary net in postnatal 3 weeks . there were rope - ladder - like patterns capillary nets around seminiferous tubules in postnatal 3 and 12 months
微血管构筑的增龄变化： 3周龄组睾丸动脉在实质内已形成了管周微动脉和管间微静脉，但绳梯状的毛细血管网尚未形成； 3月龄组与12月龄组微血管构筑呈中文摘要现定的构烈特点，在生精小管周围形成绳梯状的毛细血管网: 18月与24月龄组苹丸萎缩，微而管构筑变得不很规则。 |
