the insulin-like growth factor i receptor (igf-ir) plays an essential role in the establishment and maintenance of transformed phenotype. interference with the igf-ir pathway by antisense causes reversal of the transformed phenotype in many rodent and human tumor cell lines. we stably transfected the pc-3 human prostate cancer cell line with an igf-ir antisense rna expression plasmid. the numbe...

objective(s): herbal medicines are promising cancer preventive candidates. it has been shown that punica granatum l. could inhibit angiogenesis and tumor invasion. in this study, we investigated whether the anti-angiogenic effect of pomegranate peel extract (ppe) is partly attributable to peroxisome proliferator-activated receptors (ppars) activation in the human umbilical vein endothelial cell...

background: angiogenesis gene therapy has long been sought as a novel alternative treatment for restoring the blood flow and improving the contractile function of the ischemic heart in selected clinical settings. angiogenic fibroblast growth factor-1 (fgf-1) is a promising candidate for developing a promising gene therapy protocol due to its multipotent ability to stimulate endothelial cell (ec...

abstract research and development (r&d;) spending plays a major role in innovation, raising productivity and increasing economic growth. the purpose of this paper is to investigate the impact of r&d; spending on growth and total factor productivity (tfp) in iran's agricultural sector. we estimate growth and productivity models using auto-regressive distributed lag (ardl) approach and data over ...

purpose : to review the effectiveness and safety of perioperative injection of bevacizumab in vitrectomy for proliferative diabetic retinopathy (pdr) methods : a literature search of all english articles from the medline and scopus databases was performed. original articles, case reports and letters were included. results : nineteen, 3 and 5 studies reported preoperative, intraoperative and pos...

baluchi sheep is considered as the most common breed in iran, constituting about 30% of total sheep population, approximately 15 million heads. this research was designed to study the incidence of mutation in two loci of igf-i (exon 3) and adrb3 (intron) along with their association with body weight traits in baluchi sheep population. following dna extraction from 190 baluchi sheep, two pairs o...

conclusions the results of the present study showed that tgf-β1 (-509) c/t is strongly associated with quantitative parameters of connective tissue constituents of interdental papilla in cp patients. results the volume density (vʋ) of epithelium, connective tissue, collagenous and non-collagenous matrix and blood vessels had statistically significant differences between the control and chronic ...

PURPOSE To examine the expression and function of hepatocyte growth factor (HGF), keratinocyte growth factor (KGF), epidermal growth factor (EGF) and other growth factor-cytokine-receptor systems in lens epithelial cells. METHODS Reverse transcription-polymerase chain reaction (RT-PCR) and Northern blot analysis were used to examine the expression of messenger RNAs in primary cultured rabbit ...