Effects of anti-lipid peroxidases on frozen-thawed boar spermatozoa.
In Vitro Cell Dev Biol Anim
; 47(5-6): 350-4, 2011 Jun.
Article
in En
| MEDLINE
| ID: mdl-21487923
ABSTRACT
This study evaluated the effects of anti-lipid peroxidases when supplemented to the thawing and incubation media of frozen-thawed boar spermatozoa. Semen pellets were thawed and incubated in media with 1.0 mM α-tocopherol or diethylenetriamine. After 1 h, the acrosome reaction was induced using calcium ionophore A23187, and acrosomes were evaluated using Wells--Awa staining. The number of spermatozoa with fragmented DNA was evaluated using silver staining after single-cell gel electrophoresis. Membrane lipid peroxidation was measured by the end point generation of malondialdehyde. The diethylenetriamine-supplemented media had a higher (P < 0.05) percentage of acrosome-reacted spermatozoa (84.4 ± 4.1%) compared to the control (78.3 ± 4.2%) and α-tocopherol-supplemented (78.0 ± 3.9%). The control had a higher (P < 0.05) percentage of spermatozoa with fragmented DNA (59.3 ± 4.3%) compared to the DETA (28.7 ± 4.1%) and α-tocopherol supplementation (28.0 ± 3.8%). Spermatozoa supplemented with diethylenetriamine had higher amounts (P < 0.05) of malondialdehyde generated (3.60 ± 0.05 µM/10(7) cells) compared to the α-tocopherol supplementation (0.14 ± 0.05 µM/10(7) cells) and the control (0.12 ± 0.05 µM/10(7) cells). These results indicate that supplementing with either 1.0 mM diethylenetriamine or α-tocopherol during semen thawing and incubation protects against DNA fragmentation, and diethylenetriamine increases the percent of spermatozoa capable of completing the acrosome reaction that could induce membrane lipid peroxidation.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Polyamines
/
Semen Preservation
/
Lipid Peroxidation
/
Alpha-Tocopherol
/
Antioxidants
Limits:
Animals
Language:
En
Journal:
In Vitro Cell Dev Biol Anim
Journal subject:
BIOLOGIA
Year:
2011
Document type:
Article
Affiliation country:
Estados Unidos
Country of publication:
ALEMANHA
/
ALEMANIA
/
DE
/
DEUSTCHLAND
/
GERMANY