Related Experiment Videos
Classic genetics of scrapie
R I Carp1, Y S Kim, R J Kascsak
1NYS Institute for Basic Research in D.D., Staten Island 10314.
Progress in Clinical and Biological Research
|January 1, 1989
Summary
Genetic factors influence scrapie incubation periods and disease characteristics in mice. Host and agent genetics control various parameters, including brain pathology and disease progression.
Area of Science:
- Neuroscience
- Genetics
- Prion Diseases
Background:
- Early scrapie research identified host genetic influence on incubation period (Sinc gene).
- Distinct scrapie strains exhibit significant variations in incubation times within the same mouse strain.
Purpose of the Study:
- To explore the expanded understanding of host-agent interactions in scrapie.
- To detail parameters influenced by genetic characteristics of both host and infectious agent.
Main Methods:
- Observations of natural scrapie clinical manifestations and neuropathology.
- Experimental studies in mice to establish genetic influences on incubation periods.
- Analysis of host-agent interactions and resulting disease parameters.
Main Results:
- Genetic control extends to brain vacuolation, amyloid plaque formation, and preclinical weight gain.
- Aberrant glucose tolerance and specific brain regions affected by incubation period are genetically influenced.
- Scrapie-associated fibril characteristics are also under genetic control.
Conclusions:
- Host and agent genetics play a crucial role in modulating scrapie pathogenesis.
- Genetic factors influence a wide range of disease manifestations and progression.
- Further research into host-agent interactions reveals complex genetic control mechanisms.