VEGF-A165b Levels in Experimental Glaucoma
Author Information
Author(s): Ergorul Ceren, Ray Arjun, Huang Wei, Darland Diane, Luo Zhonghui K., Grosskreutz Cynthia L.
Primary Institution: Massachusetts Eye and Ear Infirmary, Harvard Medical School
Hypothesis
The levels of VEGF-A165b but not VEGF-A164 would be increased in the glaucomatous retina.
Conclusion
Five days of elevated intraocular pressure leads to an increase in VEGF-A165b levels in the glaucomatous retina, which return to baseline after 10 days.
Supporting Evidence
- VEGF-A164 levels remained unchanged in glaucomatous retinas after five and ten days of elevated IOP.
- VEGF-A165b levels were significantly increased in glaucomatous retinas after five days of elevated IOP.
- VEGF-A165b levels returned to baseline after ten days of elevated IOP.
Takeaway
In a study with rats, scientists found that a protein called VEGF-A165b increases when the eye pressure is high for a short time, but goes back to normal after a longer time.
Methodology
Glaucoma was induced in rats by injecting hypertonic saline, and levels of VEGF-A164 and VEGF-A165b were analyzed using western blotting and immunohistochemistry.
Limitations
The study was conducted on a small sample size of rats, which may limit the generalizability of the findings.
Participant Demographics
Male retired breeder Brown Norway rats, weighing 300-450 g.
Statistical Information
P-Value
0.014
Statistical Significance
p=0.014
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