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- W1991955057 abstract "To assess the effect of transforming growth factor (TGF)-β inhibitor peptides (P17 and P144) on the development of laser-induced choroidal neovascularization (LI-CNV) in a rat model.Sixty-one Long-Evans rats underwent diode LI-CNV model. Forty-eight hours later, treatment was administered. The intravenous control group (IV-control) and intravenous P17 group (IV-17) received five doses (0.2 mg every 72 hours) of vehicle and P17, respectively. Four groups received intravitreal injections of P17 low-dose (LD-17; 1 mg/mL) and high-dose (HD-17; 20 mg/mL) and P144 low-dose (LD-144; 1 mg/mL) and high-dose (HD-144; 3 mg/mL), and fellow eyes received vehicle. CNV evolution was assessed weekly by fluorescein angiography (FA). After death, VEGF, TGF-β and PDGF protein levels were measured by ELISA in RPE and retina homogenates. Data were analyzed with commercially available statistical analysis software.The mean CNV area, measured in pixels, was significantly lower at the second and fourth weeks in IV-17 (P < 0.05) and from the second week in HD-17 (P < 0.05), whereas LD-144 and HD-144 showed significant differences at every time point (P < 0.05). LD-17 showed significantly lower protein levels of TGF-β in retina and PDGF in RPE (P < 0.05), whereas HD-17 showed lower levels of VEGF (RPE and retina; P < 0.05), TGF-β (RPE and retina; P < 0.05), and PDGF (RPE; P < 0.05). HD-144 showed lower VEGF levels in the retina (P < 0.05).TGF-β inhibition with these peptides represents a promising new therapeutic line for CNV targeting a different pathway than current therapies. More studies are needed to assess this effect on early CNV, alone or in combination with anti-VEGF." @default.
- W1991955057 created "2016-06-24" @default.
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- W1991955057 date "2011-09-08" @default.
- W1991955057 modified "2023-10-18" @default.
- W1991955057 title "Transforming Growth Factor-β Inhibition Decreases Diode Laser–Induced Choroidal Neovascularization Development in Rats: P17 and P144 Peptides" @default.
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- W1991955057 doi "https://doi.org/10.1167/iovs.11-7300" @default.
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