Molecular membrane biology.
Discontinued
Publisher:
Taylor & Francis,. London : Informa Healthcare
Frequency: Quarterly
Country: England
Language: English
Start Year:1994 - 2019
Identifiers
| ISSN: | 0968-7688 (Print) 1464-5203 (Electronic) 0968-7688 (Linking) |
| NLM ID: | 9430797 |
| (DNLM): | SR0077912(s) |
| (OCoLC): | 29999485 |
| Coden: | MMEBE7 |
| LCCN: | 94660698 |
| Classification: | W1 MO196LS |
Membrane phase behavior during cooling of stallion sperm and its correlation with freezability. Stallion sperm exhibits great male-to-male variability in survival after cryopreservation. In this study, we have investigated if differences in sperm freezability can be attributed to membrane phase and permeability properties. Fourier transform infrared spectroscopy (FTIR) was used to determine supra and subzero membrane phase transitions and characteristic subzero membrane hydraulic permeability parameters. Sperm was obtained from stallions that show differences in sperm viability after cryopreservation. Stallion sperm undergoes a broad and gradual phase transition at suprazero temperatures...
Lipid phase separation correlates with activation in platelets during chilling. When human platelets are chilled below 22 degrees C, they spontaneously activate, a phenomenon that severely limits their storage life. It has previously been proposed that there is a correlation between cold-induced platelet activation and passage of the membranes through a liquid-crystalline to gel phase transition. Because animal models are essential for developing methods for cold storage of platelets, it is necessary to investigate such a correlation in animal platelets. In this work, horse platelets were used as a model, and it was found that cold-induced morphological activation is rela...