white spot syndrome virus (wssv) is a highly pathogenic and prevalent virus affecting shrimp culture worldwide including iran. in the present study, a pair of primers was designed according to the sequence of vp 28 gene of wssv in the genbank. vp28 gene from an iranian wssv isolate (irvp28) was cloned, sequenced and expressed in escherichia coli bl21(de3) strain in order to produce vp28 protein...

for the purpose of increasing the permeability to oxygen and equilibrium water content in contact lenses, polar copolymers with nonionic monomers such as 2-hydroxyethle methacrylate(hema) is used. by adding the polar monomers to (hema), the permeability to oxygen and equilibrium with water content is increased and also the absorption of proteins on lens surface is changed. in this research, the...

how to cite this article: : farivar s, mohamadzade z, shiari r, fahimzad ar. neural differentiation of human umbilical cord mesenchymal stem cells by cerebrospinal fluid. . iran j child neurol. 2015 winter; 9(1):87-93.     abstract objective wharton’s jelly (wj) is the gelatinous connective tissue from the umbilical cord. it is composed of mesenchymal stem cells, collagen fibers, and proteoglyc...

conclusions the most common qnr gene was qnrb, and none of the isolates carried qnra or qepa. the aac (6’)-ib-cr variant was the most prevalent pmqr gene, and it was associated with the prevalence of ciprofloxacin resistance in our esbl-producing isolates. results of the 123 isolates, 103 (83.73%) had one of the five pmqr genes, including 83 (83.83%) of the 99 e. coli strains and 20 (86.95%) of...

conclusions the cell lines obtained in this work secreted potent, stable and specific anti-bv mabs, which were suitable for the development of herpes b virus diagnosis reagents. background herpes b virus (bv) is a zoonotic disease caused by double-stranded enveloped dna virus with cercopithecidae as its natural host. the mortality rate of infected people could be up to 70% with fatal encephalit...

background bone morphogenetic protein 7 (bmp7) has been suggested to play a protective role against kidney injury in chronic kidney disease. objectives to identify the critical molecular regulators in the early stage of diabetic nephropathy, we studied the expression of bmp7 and 2 important kidney-specific markers, podocin and tamm–horsfall protein (thp). materials and methods a diabetic nephro...

paper chromatography is an analytical technique for separating and identifying mixtures of materials. it is a useful technique since it is relatively quick, and requires small quantities of the material. by emergence of nanotechnology, paper chromatography has found many applications in biology and biotechnology. in this study, we employed gold and silver nanoparticles to detect protein bands a...

neonatal purpura fulminans is a rare and life threatening disease that can be inherited or acquired in etiology. it manifests as dic and extensive subcutaneous thrombosis. the condition is often fatal unless there is prompt diagnosis, and judicious therapy. the most important causes of this condition are infections and congenital deficiency of anticoagulant proteins c and s.in the case of pc (p...

previous work by other investigators indicates a direct relation between the amount of protein in the diet and the level of urea in the blood . however, the present report shows that the type of protein , apart from its level in the ration , also has an effect on blood urea concentrations. when adult male or female rats of two strains were fed a ration in which the only source of protein was wh...