How oxidized LDL causes cell death in retinal cells
Author Information
Author(s): Matthew J. Diffley, Mingyuan Wu, Mimi Sohn, Weiwei Song, Samar M. Hammad, Timothy J. Lyons
Primary Institution: Harold Hamm Oklahoma Diabetes Center and Section of Endocrinology and Diabetes, University of Oklahoma Health Sciences Center
Hypothesis
Does HOG-LDL induce apoptosis in human retinal capillary pericytes independently of MAPK signaling pathways?
Conclusion
HOG-LDL induces apoptosis in human retinal capillary pericytes without activating MAPK signaling pathways.
Supporting Evidence
- HOG-LDL induced apoptosis in HRCP in a dose-dependent manner.
- N-LDL did not induce apoptosis compared to serum-free medium.
- Blocking MAPK pathways did not inhibit HOG-LDL-induced apoptosis.
Takeaway
This study found that a type of bad cholesterol called HOG-LDL can make certain eye cells die, but it doesn't do this by using the usual cell signaling pathways.
Methodology
Human retinal capillary pericytes were exposed to different concentrations of HOG-LDL and N-LDL, and apoptosis was measured using flow cytometry.
Participant Demographics
Volunteers were aged 20 to 40 years, 71% male, non-diabetic, and had normal health parameters.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
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