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Objective To investigate the effects on erectile function of transplanted major pelvic ganglion into the corpus cavernosum of adult male rats undergoing transection of bilateral cavernous nerves. Methods Twenty-six male Sprague-Dawley rats (3-4 month-old and 300-400 g/each) were divided into 2 groups: experimental group (transection of bilateral cavernous nerves and transplantation of left ganglion into left crus of penis, n =16) and control group (transection of bilateral cavernous nerves only, n =10).Erectile...

Objective To investigate the effects on erectile function of transplanted major pelvic ganglion into the corpus cavernosum of adult male rats undergoing transection of bilateral cavernous nerves. Methods Twenty-six male Sprague-Dawley rats (3-4 month-old and 300-400 g/each) were divided into 2 groups: experimental group (transection of bilateral cavernous nerves and transplantation of left ganglion into left crus of penis, n =16) and control group (transection of bilateral cavernous nerves only, n =10).Erectile function was measured by injecting APO,and intracavernous pressure was measured 1 and 3 months afterwards by electrostimulating the right major pelvic ganglion or the left crus.Half animals in each group were sacrificed 1 and 3 months afterwards for detecting nNOS-containing nerve fibers of corpus cavernosum.Electron microscopy of the implanted area was performed to assess neuronal survival. Results Both of the two groups have no erectile response to APO injection.Electrostimulation on the right major pelvic ganglion and left crus failed to produce erection in experimental group.The mean pressure changes in the two groups,measured by stimulating the left crus,were (9.41±3.20) and (4.16±2.58) cmH 2O 1 month afterwards,and (13.67±4.18) and (5.09±2.74) cmH 2O 3 months afterwards,respectively ( P <0.05).An increased number of nNOS-containing nerve fibers in left crus was detected in experimental group 1 and 3 months later,compared with control one (218.7±24.5,18.0±3.7;183.2±19.7,19.0±3.8; P <0.05).Ultrastructure examination by transmission electron microscope confirmed the survival of the implanted ganglion. Conclusion Major pelvic ganglion can survive in the corpus cavernosum,and it has significant effects on the number of nNOS-containing nerve fibers and the alteration of intracavernous pressure.

目的 研究双侧海绵体神经离断后 ,自体盆神经节海绵体内移植对大鼠阴茎勃起功能的影响。方法 将 2 6只雄性SD大鼠 (3~ 6个月 ,30 0~ 4 0 0g 只 )随机分为 2组 :(1)实验组 (n =16 )行双侧海绵体神经离断及左盆神经节移植入左侧阴茎脚内 ;(2 )对照组 (n =10 )仅离断双侧海绵体神经。1个月及 3个月后阿朴吗啡皮下注射检测勃起功能 ,电刺激左阴茎脚移植区域或右侧盆神经节比较海绵体内压的变化 ,NADPH染色检测海绵体内一氧化氮合酶 (NOS)阳性神经纤维 ,透射电镜观察盆神经节移植后的存活情况。结果 两组大鼠 1个月及 3个月后注射阿朴吗啡后均无勃起反应 ;电刺激左阴茎脚盆神经节移植区域后亦不能导致勃起。 1个月后电刺激两组左阴茎脚后的海绵体内压变化分别为 (9 4 1± 3 2 0 )、(4 16± 2 5 8)cmH2 O(t=4 76 9,P <0 0 5 ) ,3个月后分别为 (13 6 7± 4 18)、(5 0 9± 2 74 )cmH2 O(t=9 18,P <0 0 5 )。两组大鼠左阴茎脚区域的NOS阳性神经纤维数目 ...

目的 研究双侧海绵体神经离断后 ,自体盆神经节海绵体内移植对大鼠阴茎勃起功能的影响。方法 将 2 6只雄性SD大鼠 (3~ 6个月 ,30 0~ 4 0 0g 只 )随机分为 2组 :(1)实验组 (n =16 )行双侧海绵体神经离断及左盆神经节移植入左侧阴茎脚内 ;(2 )对照组 (n =10 )仅离断双侧海绵体神经。1个月及 3个月后阿朴吗啡皮下注射检测勃起功能 ,电刺激左阴茎脚移植区域或右侧盆神经节比较海绵体内压的变化 ,NADPH染色检测海绵体内一氧化氮合酶 (NOS)阳性神经纤维 ,透射电镜观察盆神经节移植后的存活情况。结果 两组大鼠 1个月及 3个月后注射阿朴吗啡后均无勃起反应 ;电刺激左阴茎脚盆神经节移植区域后亦不能导致勃起。 1个月后电刺激两组左阴茎脚后的海绵体内压变化分别为 (9 4 1± 3 2 0 )、(4 16± 2 5 8)cmH2 O(t=4 76 9,P <0 0 5 ) ,3个月后分别为 (13 6 7± 4 18)、(5 0 9± 2 74 )cmH2 O(t=9 18,P <0 0 5 )。两组大鼠左阴茎脚区域的NOS阳性神经纤维数目 1个月后分别为 (2 18 7± 2 4 5 )、(18 0± 3 7) (t=14 77,P <0 0 5 ) ,3个月后分别为 (183 2± 19 7)、(19 0± 3 8) (t =12 18,P <0 0 5 ) ;透射电镜证实了神经节移植后的存活。结论 盆神经节海绵体内移植后可以存

Having studied the status quo of the traditional track meet in universities and colleges, we discovered that there exist many misunderstandings and disadvantages. It is obvious that the track meet fails to attract most of the faculty and students to join the game. That is contrary to the theme of the sports meet. As a result, it is necessary to reform the traditional sports meet in the universities and colleges. This paper intends to discuss the possibility of the reformation that the General Sports Culture...

Having studied the status quo of the traditional track meet in universities and colleges, we discovered that there exist many misunderstandings and disadvantages. It is obvious that the track meet fails to attract most of the faculty and students to join the game. That is contrary to the theme of the sports meet. As a result, it is necessary to reform the traditional sports meet in the universities and colleges. This paper intends to discuss the possibility of the reformation that the General Sports Culture Festival takes the place of traditional Track Meet. The author also put forward some specific measures.

对普通高校的传统田径运动会现状研究发现,存在不少的误区和弊端,已违背了高校体育教育的方向和规律,必须进行改革.通过校运会与“综合体育文化节”的比较,指出体育节代替传统田径运动会的可行性,同时提出运动会向体育节转轨的措施.

Objective:To analyze the variety of parameter TE(time to echo), which should influence the segmentation of MR brain images.Methods:MR brain images with a regulated range, from 5 volunteers,was processed by MATLAB 6.5 for signal values of different brain tissues (cerebral spinal fluid, cerebral corterx, basal nucleus, and white matter), PEMS 3.0 for variance analysis, and SNK-q test for statistical analysis.Results:①For cerebral cortex and cerebral spinal fluid, cerebral spinal fluid and basal nucleus, with TE...

Objective:To analyze the variety of parameter TE(time to echo), which should influence the segmentation of MR brain images.Methods:MR brain images with a regulated range, from 5 volunteers,was processed by MATLAB 6.5 for signal values of different brain tissues (cerebral spinal fluid, cerebral corterx, basal nucleus, and white matter), PEMS 3.0 for variance analysis, and SNK-q test for statistical analysis.Results:①For cerebral cortex and cerebral spinal fluid, cerebral spinal fluid and basal nucleus, with TE value 26 or 40 P>0.05, without significant difference; for all other couples,P<0.05 or P<0.01. With significant difference; ②For all couples in every other group,P<0.01, with significant difference.Conclusion:The segmentation of MR brain images can be influenced evidently by the selection of TE parameters.

目的:分析TE(回波延迟时间)参数变化对MR颅脑图像分割的影响。方法:选择不同的TE值,对5名志愿者采集MR颅脑图像,应用MATLAB软件测量脑脊液、脑皮质、基底神经节、脑白质4种组织样点的信号值,应用PEMS3.0软件采用方差分析并进行SNK-q检验进行统计分析。结果:①在TE=26、TE=40组中脑皮质与脑脊液比较,脑脊液与基底神经节比较P>0.05,差异无显著性意义;脑皮质与基底神经节比较P<0.05,余者均P<0.01,差异有显著性意义;②在TE=60、80、100和130各组中4种脑组织信号值两两之间比较,P<0.01,差异均有显著性意义。结论:TE取值的不同,对颅脑MR图像中各组织成分的有效分割会产生较大影响。

 
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