objective(s): tadalafil can restore endothelial function and treat atherosclerosis. however, the effect of tadalafil on transplant arteriosclerosis remains unclear. in this study, we explore the effects of tadalafil on allograft vasculopathy. materials and methods: male brow-norway rats supplied aorta grafts for male lewis rats. all recipients were divided into 3 groups: saline as placebo (cont...

background dialysis vascular access complications are considered as significant causes of morbidity in chronic hemodialysis patients. objectives the aim of the present study was a comparison of axillary loop and straight grafts patency and its complications in hemodialysis access. patients and methods in this cohort study conducted at shahid beheshti medical university, 77 patients who underwen...

background opportunistic infections have become much more considerable in the last decades, especially in immunocompromised patients and due to the medical interventions. cryptosporidium is a pathogenic protozoan parasite causing diarrhea in children and some times acts as a life threatening opportunistic pathogen in the immunocompromised adults. objectives this study aimed to investigate the p...

Organ transplantation is often studied in its medical, legal or ethical dimensions. Very few works have considered the supply chain dimension, even though organisation of organ transportation critical to success transplants given extremely tight time constraint guarantee correct state organ. The authors examine logistical systems associated with transplantation, distinguishing between two servi...

INTRODUCTION Transplantation of hematopoietic stem cells from blood or bone marrow has become accepted therapy for many diseases. Numbers of transplants have increased significantly and stem cell source, donor type and indications have changed during this decade. Information on these changes is essential for interpretation of current data, patient counseling and health care planning. PATIENTS...

several factors including cancer, malformations and traumas may cause large facial mutilation. these functional and aesthetic deformities negatively affect the psychological perspectives and quality of life of the mutilated patient. conventional treatments are prone to fail aesthetically and functionally. the recent introduction of the composite tissue allotransplantation (cta), which uses tran...