Related Experiment Videos
[Age-related changes in the visual function of WBN/Kob rats: a behavioral study]
I Kiyosawa1, M Aoki, T Imamura
1Kissei Pharmaceutical Co., Ltd., Nagano, Japan.
Jikken Dobutsu. Experimental Animals
|October 1, 1993
Summary
Diabetic WBN/Kob rats show visual abnormalities by 67 weeks of age. These changes were detected using dark-light distinction tests, not open-field tests.
Area of Science:
- Ophthalmology
- Diabetology
- Animal Models
Context:
- Aging research
- Diabetic rat models
- Visual function assessment
Purpose:
- Investigate age-related visual changes in WBN/Kob rats.
- Compare visual function between diabetic WBN/Kob and control Wistar/ST rats.
- Determine the age of onset for visual abnormalities in this diabetic strain.
Summary:
- Male WBN/Kob rats and Wistar/ST rats were tested at multiple ages (5-80 weeks) using dark-light distinction and open-field tests.
- WBN/Kob rats exhibited significant visual abnormalities at 67 and 80 weeks of age compared to controls (P < 0.05).
- Visual impairment was evident in the dark-light distinction test, but not the open-field test, suggesting specific deficits.
Impact:
- Identifies a specific age (67 weeks) for detecting visual abnormalities in WBN/Kob rats.
- Highlights the utility of the dark-light distinction test for early detection of visual dysfunction in diabetic models.
- Provides a foundation for further research into the mechanisms of diabetic retinopathy and age-related vision loss.