Two versus three doses of COVID-19 vaccine and post-vaccination COVID-19 infection in hemodialysis patients.

Background And Aim: Patients with chronic kidney disease including those undergoing hemodialysis (HD) constitute a particularly challenging group regarding COVID-19 vaccination. The present study aimed to compare the rate of reinfection after two and three doses of Sinopharm COVID-19 vaccine in HD patients.

Patients And Methods: The study included 80 HD patients who received three doses of Sinopharm COVID-19 vaccine.

Study of Osteopontin as a Marker of Arteriovenous Shunt Stenosis in Hemodialysis Patients.

Introduction: Although arteriovenous fistula (AVF) is the recommended access for hemodialysis (HD), it carries a high risk for stenosis. Since osteopontin (OPN) is implicated in the process of vascular calcification in HD patients, OPN may be a marker for AVF stenosis. The present study evaluated OPN as a potential marker of AVF stenosis in HD patients.

Study of transforming growth factor beta 1 gene +869T/C polymorphism in Egyptian rheumatoid arthritis patients and its relation to disease activity.

This study intended to explore the relationship between the +869T/C polymorphism of the transforming growth factor-β1 (TGF-β1) gene and rheumatoid arthritis (RA) predisposition and activity in Egyptian patients. The study involved 30 patients suffering from RA and 30 apparently healthy participants as the control group. The +869T/C polymorphism of the TGF-β1 gene was determined by the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) process.