Serum and vitreous vascular endothelial growth factor levels in diabetic retinopathy

Autor: Goncagul Haklar, Osman Çekiç, Fatma Işıl Sözen-Delil
Přispěvatelé: Sozen-Delil F. I., Cekic O., HAKLAR G.
Rok vydání: 2022
Předmět:
Zdroj: International Ophthalmology.
ISSN: 1573-2630
DOI: 10.1007/s10792-022-02620-y
Popis: Purpose To research whether serum vascular endothelial growth factor (VEGF) levels could be used to evaluate diabetic retinopathy (DR) progression and to compare vitreous VEGF levels after injections of intravitreal bevacizumab (IVB), ranibizumab (IVR), and triamcinolone acetonide (IVTA) in proliferative diabetic retinopathy (PDR). Methods We enrolled a total of 91 eyes of 89 subjects (70 eyes of 68 diabetics and 21 eyes of 21 nondiabetic controls). The diabetic subjects were divided into three groups as PDR (n=28), non-proliferative diabetic retinopathy (n=20), and no-DR (n=20). Eyes with PDR (n=31) were injected with IVB (n=7), IVR (n=10), or IVTA (n=6) 3 days before vitrectomy, and eight eyes did not receive an injection. Serum and vitreous samples were collected before vitrectomy and analyzed using ELISA. Results We found the severity of retinopathy was not correlated with serum VEGF levels (P=.919, ρ=−0.011). Compared with the controls, vitreous VEGF was higher in the PDR (P
Databáze: OpenAIRE