scholarly journals Interrelationships between seminal parameters and sperm nuclear DNA damage before and after density gradient centrifugation: implications for assisted conception

2001 ◽  
Vol 16 (10) ◽  
pp. 2160-2165 ◽  
Author(s):  
M.J. Tomlinson ◽  
O. Moffatt ◽  
G.C. Manicardi ◽  
D. Bizzaro ◽  
M. Afnan ◽  
...  
1962 ◽  
Vol 13 (2) ◽  
pp. 253-260 ◽  
Author(s):  
Y. E. Rahman

Fractions from rat thymuses were isolated by sucrose density-gradient centrifugation, before and after 1000 r whole-body x-irradiation, and examined by electron microscopy. Cytochrome oxidase and acid phosphatase activities of these fractions were tested as well. Electron-opaque bodies with diameters ranging from 0.10 to 0.35 µ, with a mean of 0.25 µ, were found in fractions having high acid phosphatase activity, while the fractions rich in cytochrome oxidase consisted mostly of mitochondria. After irradiation, there was an increased ratio of dense bodies to mitochondria. These particles are considered to be lysosomes similar to those identified in other rat tissues. Their relationship to the mitochondria is discussed.


2013 ◽  
Vol 05 (07) ◽  
pp. 15-20
Author(s):  
Carmen López-Fernández ◽  
Stephen D. Johnston ◽  
Altea Gosálbez ◽  
Jose Luís Fernández ◽  
Juan G. Álvarez ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document