Three-dimensional analysis of connexin43 gap junction in the ex vivo rat seminiferous tubules: Short-term effects of hormonal effectors

2009 ◽  
Vol 72 (11) ◽  
pp. 845-855 ◽  
Author(s):  
Jerome Gilleron ◽  
Diane Carette ◽  
Francoise Carpentier ◽  
Dominique Segretain ◽  
Georges Pointis
Keyword(s):  
Gap Junction ◽  
Dimensional Analysis ◽  
Ex Vivo ◽  
Three Dimensional ◽  
Seminiferous Tubules ◽  
Short Term ◽  
Short Term Effects

scholarly journals Three-dimensional analysis of subchondral cysts in hip osteoarthritis: An ex vivo HR-pQCT study

Bone ◽  
2014 ◽  
Vol 66 ◽  
pp. 140-145 ◽  
Author(s):  
Ko Chiba ◽  
Andrew J. Burghardt ◽  
Makoto Osaki ◽  
Sharmila Majumdar
Keyword(s):  
Dimensional Analysis ◽  
Ex Vivo ◽  
Three Dimensional ◽  
Hip Osteoarthritis

Quantitative Three-Dimensional Analysis of Chondrocytic Kinetic Responses to Short-Term Stapling of the Rat Proximal Tibial Growth Plate

2000 ◽  
Vol 167 (4) ◽  
pp. 247-258 ◽  
Author(s):  
Cornelia E. Farnum ◽  
Alan Nixon ◽  
Andrea O. Lee ◽  
Donna T. Kwan ◽  
Lia Belanger ◽  
...  
Keyword(s):  
Growth Plate ◽  
Dimensional Analysis ◽  
Three Dimensional ◽  
Short Term ◽  
Tibial Growth Plate

scholarly journals Three-Dimensional Analysis of Busulfan-Induced Spermatogenesis Disorder in Mice

2020 ◽  
Vol 8 ◽  
Author(s):  
Hiroki Nakata ◽  
Taito Nakano ◽  
Shoichi Iseki ◽  
Atsushi Mizokami
Keyword(s):  
3D Reconstruction ◽  
Dimensional Analysis ◽  
Intraperitoneal Injection ◽  
Three Dimensional ◽  
Stage I ◽  
Seminiferous Tubules ◽  
Factors Influencing ◽  
Branching Points ◽  
Normal Spermatogenesis ◽  
Single Testis

We examined if the distribution of impaired or normal spermatogenesis differs along the length of seminiferous tubules in disorders of spermatogenesis. For this purpose, three-dimensional (3D) reconstruction of seminiferous tubules was performed in mice with experimental spermatogenesis disorder induced by intraperitoneal injection of busulfan, and the areas of impaired and normal spermatogenesis were analyzed microscopically. The volume of the testis and length of seminiferous tubules decreased, and the proportion of tubule areas with impaired spermatogenesis increased depending on the dose of busulfan. With the highest dose of busulfan, although the proportion of impaired spermatogenesis was similar among individual seminiferous tubules, it was slightly but significantly higher in shorter tubules and in tubule areas near branching points. The tubule areas with impaired and normal spermatogenesis consisted of many segments of varying lengths. With increasing doses of busulfan, the markedly impaired segments increased in length without changing in number, whereas normal segments, although reduced in number and length, remained even with the highest dose of busulfan. Individual remaining normal segments consisted of several different stages, among which stage I and XII were found at higher frequencies, and stage VI at a lower frequency than expected in normal seminiferous tubules. We also examined if the distribution of impaired or normal spermatogenesis differs among different 3D positions in the testis without considering the course of seminiferous tubules. Although the proportions of impaired spermatogenesis with the minimum dose of busulfan and normal spermatogenesis with the highest dose of busulfan greatly varied by location within a single testis, there were no 3D positions with these specific proportions common to different testes, suggesting that the factors influencing the severity of busulfan-induced spermatogenesis disorder are not fixed in location among individual mice.

In situ investigation of the primary recrystallization of alpha titanium in HVEM

1978 ◽  
Vol 36 (1) ◽  
pp. 634-635
Author(s):  
S. Naka ◽  
R. Penelle ◽  
R. Valle
Keyword(s):  
Dimensional Analysis ◽  
Texture Evolution ◽  
Cold Work ◽  
Three Dimensional ◽  
Primary Recrystallization ◽  
Thin Foils ◽  
In Situ Investigation ◽  
Grain Growth Model ◽  
Alpha Titanium

The in situ experimentation technique in HVEM seems to be particularly suitable to clarify the processes involved in recrystallization. The material under investigation was unidirectionally cold-rolled titanium of commercial purity. The problem was approached in two different ways. The three-dimensional analysis of textures was used to describe the texture evolution during the primary recrystallization. Observations of bulk-annealed specimens or thin foils annealed in the microscope were also made in order to provide information concerning the mechanisms involved in the formation of new grains. In contrast to the already published work on titanium, this investigation takes into consideration different values of the cold-work ratio, the temperature and the annealing time.Two different models are commonly used to explain the recrystallization textures i.e. the selective grain growth model (Beck) or the oriented nucleation model (Burgers). The three-dimensional analysis of both the rolling and recrystallization textures was performed to identify the mechanismsl involved in the recrystallization of titanium.

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