RESUMEN
The incidence of spinal cord injury is increasing year by year, and more and more attentions have been paid. Growth factors can promote the regeneration of nerve fibers and synapses, and they also play an important role in the treatment of spinal cord injury and the recovery of neurological function. The growth factor itself has a short half-life, so it is necessary to use growth factor gene vectors to transfect stem cells and nanoparticles to deliver growth factors or biocompatible scaffolds to support growth factors to treat spinal cord injuries. With the development of the research on growth factors, the application of single growth factor is difficult to meet the need of treatment to spinal cord injury. To explore the synergistic effect of various growth factors in order to achieve a better therapeutic effect is a promising research direction in the future. The purpose of this review is to summarize the therapeutic effects of growth factors on spinal cord injury including brain-derived neurotrophic factor, neurotrophic factor 3, nerve growth factor, basic fibroblast growth factor and synergy therapy of growth factors.
RESUMEN
The incidence of spinal cord injury is increasing year by year, and more and more attentions have been paid. Growth factors can promote the regeneration of nerve fibers and synapses, and they also play an important role in the treatment of spinal cord injury and the recovery of neurological function. The growth factor itself has a short half-life, so it is necessary to use growth factor gene vectors to transfect stem cells and nanoparticles to deliver growth factors or biocompatible scaffolds to support growth factors to treat spinal cord injuries. With the development of the research on growth factors, the application of single growth factor is difficult to meet the need of treatment to spinal cord injury. To explore the synergistic effect of various growth factors in order to achieve a better therapeutic effect is a promising research direction in the future. The purpose of this review is to summarize the therapeutic effects of growth factors on spinal cord injury including brain-derived neurotrophic factor, neurotrophic factor 3, nerve growth factor, basic fibroblast growth factor and synergy therapy of growth factors.
RESUMEN
<p><b>OBJECTIVE</b>To identify protein markers for the early diagnosis of pancreatic cancer by a comparative proteomic method.</p><p><b>METHODS</b>Comparative analysis on the pancreatic peripheral blood protein profiling from 20 pancreatic cancer patients, 10 chronic pancreatitis patients and 20 cancer-free controls from May 2007 to September 2008 was carried out by two-dimensional fluorescence electrophoresis (2D-DIGE). Differentially expressed proteins were identified by matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS). The significance difference proteins were confirmed by Western-blot.</p><p><b>RESULTS</b>A differentially expressed proteins: complement 3 (C3) was identified. The gray level of C3 in pancreatic cancer tissue, chronic pancreatitis, and normal control group were 1.63 ± 0.28, 0.65 ± 0.13 (t = 11.81, P = 0.00) and 0.88 ± 0.19 (t = 9.93, P = 0.00), respectively. C3 was high expression in pancreatic cancer group compared with normal control group. The expression of C3 was higher in pancreatic cancer group than in chronic pancreatitis group. The high expression of C3 in pancreatic carcinoma was confirmed by Western blot.</p><p><b>CONCLUSIONS</b>2D-DIGE and MALDI-TOF-MS technology is a quick, easy and practical method to screen for specific biomarkers in serum of patients with pancreatic carcinoma. The identified protein C3 in this study may be as specific serum biomarkers of pancreatic carcinoma.</p>