Abstract
Purpose
Alpha-B crystallin (αB-crystallin) is a molecular chaperone, and one of the small heat shock proteins (sHSPs). αB-crystallin has been shown to have neuroprotective properties. The purpose of this study was to determine the level of αB-crystallin in eyes with a rhegmatogenous retinal detachment (RRD).
Methods
Vitreous samples were collected before vitrectomy from 32 eyes of 32 consecutive patients with RRD. The concentration of αB-crystallin was measured by enzyme-linked immunosorbent assay (ELISA). Vitreous samples were also collected before vitrectomy from 16 patients with an idiopathic macular hole and epiretinal membrane, and used as controls.
Results
The mean age was 56 years (range, 31–67 years) in the RRD cases and 66 years (range, 49–77 years) in the controls. The mean level of αB-crystallin was significantly higher in the RRD cases (36.7 ± 37.4 ng/ml) than that in controls (8.5 ± 12.2 ng/ml; P = 0.0028).
Conclusions
The increased level of αB-crystallin suggests that αB-crystallin may play a neuroprotective role by lessening retinal cell death after a retinal detachment.
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Acknowledgments
This work was supported by Japan Society for the Promotion of Science KAKENHI 23791966, Grant-in-Aid for Young Scientists (B) (TB). The authors indicate no financial support or financial conflict of interest involved in design and conduct of study, collection of data, management, analysis and interpretation of data, and preparation, review, or approval of manuscript. The authors thank Professor Duco Hamasaki of the Bascom Palmer Eye Institute of the University of Miami for his critical discussion and editing the final manuscript.
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Baba, T., Oshitari, T. & Yamamoto, S. Level of vitreous alpha-B crystallin in eyes with rhegmatogenous retinal detachment. Graefes Arch Clin Exp Ophthalmol 253, 1251–1254 (2015). https://doi.org/10.1007/s00417-014-2815-z
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DOI: https://doi.org/10.1007/s00417-014-2815-z