background :disruption of anterior cruciate ligament (acl) is a common ligamentous injury of the knee. the choice of graft for (acl) reconstruction remains controversial. this prospective, randomized clinical trial aimed to compare clinical results of bone-patellar tendon-bone (bptb) grafts and four-strand semitendinosus-gracilis (st) grafts for acl reconstruction over a 3-year follow-up interv...

The experiment was carried out during 2015-2016, with the aim of investigating the effects of scion cultivar, rootstock age and hormonal treatments on the success of walnut minigrafting. Analysis of results showed that all studied factors were effective on graft-take and survival of minigrafted walnuts and other growth traits of the scions. The highest graft-take was observed on one-year-old ro...

purpose: to compare the refractive results of penetrating keratoplasty (pk) in two groups of patients with keratoconus undergoing corneal grafting with different amounts of donor-recipient disparity (0.25 and 0.5 mm). methods: as a randomized clinical trial and after performing a complete ocular examination and vitreous length measurement, 30 patients with keratoconus were randomly assigned in ...

BMP-4 is a transforming growth factor beta (TGF- beta) superfamily member which plays important roles in various developmental processes in vertebrate embryogenesis. In this study the expression pattern of BMP-4 was examined during early chick and quail embryonic development. Transcripts were found in the lateral ridges of the neural plate during neurulation and in dorsal regions of the neural ...

The lack of supply and access to human tissue has prompted the development of xenotransplantation as a potential clinical modality for neural cell transplantation. The goal of the present study was to achieve a better understanding of the immune factors involved in neural xenograft rejection in primates. Initially, we quantified complement mediated cell lysis of porcine fetal neurons by primate...

background and aim the most common complication of renal transplantation is allograft dysfunction, which in some cases leads to graft loss. the role of graft nephrectomy in the management of transplant failure is controversial. the procedure remains associated with a significant morbidity and also mortality. our main purpose was the comparison between clinical and pathological diagnosis of graf...

Mechanical property is an important factor of cellular microenvironment for neural tissue regeneration. In this study, polyacrylamide (PAM) hydrogels with systematically varying elastic modulus were prepared using in situ radical polymerization. We found that the hydrogel was biocompatible, and length dorsal root ganglion (DRG)'s axon cell density optimal on 5.1 kPa (among between 3.6 16.5 kPa)...

The neural crest is a transient migratory population of stem cells derived from the dorsal neural folds at the border between neural and non-neural ectoderm. Following induction, prospective neural crest cells are segregated within the neuroepithelium and then delaminate from the neural tube and migrate into the periphery, where they generate multiple differentiated cell types. The intrinsic de...

Graft polymerization of acrylic acid (AA) and ethyl methacrylate (EMA) onto starch (St) were carried out in aqueous solution using ceric ammonium nitrate (CAN) as redox system under N2 atmosphere. The effect of pH, reaction time, temperature, concentrations of CAN, St, and monomers on the graft yield was investigated. Monomer reactivity was in the following order: AA>EMA.<em...

background: delayed graft function is a main complication after deceased donor kidney transplantation that adversely affects graft outcome. difficulties in prediction and early detection of delayed graft function have hindered the ability to perform proper therapeutic interventions. we investigated whether measuring urinary interleukin 18 and neutrophil gelatinase-associated lipocalin as marker...