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O. Abdiu, G. Olivestedt, L. Berglin, G. Van Setten; PEDFs Presence in Subretinal Fluid and its Possible Role in Wound Healing Following Retinal Detachment . Invest. Ophthalmol. Vis. Sci. 2006;47(13):4228.
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PEDF (pigment epithelium derived factor) is a member of the serpin family of protease inhibitors. It is considered to be an important regulator of human eye disease and is known to inhibit angiogenesis. We have therefore investigated the presence of PEDF in the subretinal fluid (SRF) of patients with retinal detachment.
Eighteen samples from SRF were collected from patients during retinal detachment surgery. Specific ELISA analysis was performed with specific IgG against human PEDF.
PEDF was detected in the subretinal fluid of all cases. The mean concentration of PEDF was 33.9 ng/ml (SD ng/ml; range 5.3 ng/ ml to 74.7 ng/ml). The majority of samples had however a concentration of more than 22 ng PEDF / ml fluid.
PEDF appears to be a constant component of the fluid accumulating in the subretinal space after retinal detachment. The known effects of PEDF, however, suggest that it may be involved in physiological processes of wound healing in the subretinal space.
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