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BACKGROUND: Percutaneous vertebral body stenting system (VBS) can alleviate patient's pain, recover the height of vertebral body, and correct local kyphosis, but there is no definite clinical study to show that It has obvious advantages over percutaneous kyphoplasty (PKP). OBJECTIVE: To compare the short-term effect of VBS versus PKP in the treatment of osteoporotic vertebral compression fracture. METHODS: Forty patients with osteoporotic vertebral compression fracture who received VBS or PKP between January 2017 and December 2018 In the First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine were included in this study. They were divided into a VBS group (n=15) and a PKP group (n=25) according to surgery method. According to whether fluoroscopic operation was performed in retroextension position, two subgroups were designated: VBS retroextension group (n=7) and PKP retroextension group (n=14). RESULTS AND CONCLUSION: Compared with the PKP group, the amount of bone cement injected Into the vertebra was greater in the VBS group (P 0.05). Compared with preoperative situations, Visual Analogue Scale score was significantly decreased after surgery In both VBS and PKP groups, and further decreased at the last follow-up (P 0.05). These results suggest that VBS and PKP are effective in the treatment of osteoporotic vertebral compression fractures. VBS can better correct compression kyphosis deformity when more bone cement Is injected. The difference of therapeutic efficacy between two surgical approaches can be reduced with proper surgical position, keeping the surgical segment In the retroextension position.
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<p><b>OBJECTIVE</b>To establish osteoblast-osteoclast cell co-culture system in a Transwell chamber, and detect cell viability of osteoblasts and osteoclasts in system.</p><p><b>METHODS</b>Osteoblast MC3T3-E1 and mouse monocytes RAW264.7 were cultivated in vitro. RANKL-induced mouse RAW264.7 monocytes differentiated into mature osteoclasts, osteoblast-osteoclast cell co-culture system was established in Transwell chamber. Cell activity of osteoblasts and osteoclasts were detected by CCK-8 experimenting, Alizarin Red staining, TRAP staining. The expression of OPG, ALP, RANKL, TGF-b1 gene and RANKL protein in osteoblast MC3T3-E1 were detected by PCR, Western-Blot methods. Also, the expression of RANK, NF-κB in gene and protein level in osteoclast were measured through the same method respectively.</p><p><b>RESULTS</b>The co-culture system of Mouse MC3T3-E1 cells and RAW264.7 cell were established in Transwell chamber. Co-culture system affected cell division activities of osteoblasts and osteoclasts. Differentiation of osteoblasts were increased, while differentiation of osteoclast division were slight decreased under microscope observation. OPG (0.65±0.08) and ALP (0.16±0.01) gene expression of co-culture system were less than single culture OPG(1.00±0.08) and ALP (1.01±0.16); TGF-b1(4.42±0.21) and RANKL(4.12±1.04) of osteoblasts in co-culture system were higher than TGF-b1(1.00±0.10) and RANKL(1.00±0.09) under single culture. However, gene expression of RANK(0.63±0.06) and NF-κB(0.64±0.08) in co-culture system were decreased than RANK(1.00±0.08) and NF-κB(1.00±0.09), in single culture, and had significant differences. Similarly, protein expression of OPG(0.43±0.05) and NF-κB(0.59±0.05) of co-culture system were less than OPG(0.84±0.06) and NF-κB(1.13±0.03) of single culture. While RANKL protein expression (0.54±0.03)of co-culture system was more than single culture RANKL(0.31±0.03), and had statistically differences, which was in agreement of the trend of gene expression change.</p><p><b>CONCLUSIONS</b>Co-culture system of mouse MC3T3-E1 cells and RAW264.7 cell was viable in Transwell chamber, and the activity of osteoblasts is higher than osteoclasts in co-culture system.</p>
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Animais , Camundongos , Células 3T3 , Diferenciação Celular , Técnicas de Cocultura , NF-kappa B , Metabolismo , Osteoblastos , Biologia Celular , Osteoclastos , Biologia Celular , Osteoprotegerina , Metabolismo , Ligante RANK , Metabolismo , Receptor Ativador de Fator Nuclear kappa-B , Metabolismo , Fator de Crescimento Transformador beta1 , MetabolismoRESUMO
Objective To study the impact of different general anesthesia on T-lymphocyte subsets in patients underwent laparoscopic colorectal resection. Methods 80 patients with laparoscopic colorectal cancer resection were selected from March 2008 to June 2012. According to the difference of general anesthesia, there were 28 patients (Group A). There were 27 patients (group C) who underwent general anesthesia. Patients of the three groups were examined for the level of T lymphocyte subsets during anesthesia. Results CD3+, CD4+ and CD8+ levels were significantly decreased in all the three groups after general anesthesia, CD4+/CD8+ and NK cells in group B were significantly decreased, and CD4+/CD8+ in group C was significantly decreased. The levels of T1 and T2 in group B were significantly lower than those in group A, and the levels of CD3+ and CD8+ in group C were significantly lower than those in group A, and the other indexes except T2 were significantly lower than those of group A, and group C T1 CD8+ was significantly lower than that in group B, NK cells were significantly higher than those in group B, and CD4+in T2 was significantly higher than that in group B. Conclusion Intravenous general anesthesia has the least effect on T lymphocyte subsets in patients undergoing laparoscopic colorectal cancer resection, and the effect on immune function is the slightest.
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Objective To study the impact of different general anesthesia on T-lymphocyte subsets in patients underwent laparoscopic colorectal resection. Methods 80 patients with laparoscopic colorectal cancer resection were selected from March 2008 to June 2012. According to the difference of general anesthesia, there were 28 patients (Group A). There were 27 patients (group C) who underwent general anesthesia. Patients of the three groups were examined for the level of T lymphocyte subsets during anesthesia. Results CD3+, CD4+ and CD8+ levels were significantly decreased in all the three groups after general anesthesia, CD4+/CD8+ and NK cells in group B were significantly decreased, and CD4+/CD8+ in group C was significantly decreased. The levels of T1 and T2 in group B were significantly lower than those in group A, and the levels of CD3+ and CD8+ in group C were significantly lower than those in group A, and the other indexes except T2 were significantly lower than those of group A, and group C T1 CD8+ was significantly lower than that in group B, NK cells were significantly higher than those in group B, and CD4+in T2 was significantly higher than that in group B. Conclusion Intravenous general anesthesia has the least effect on T lymphocyte subsets in patients undergoing laparoscopic colorectal cancer resection, and the effect on immune function is the slightest.
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Objective To explore the risk factors of esophageal cancer and these factors' interaction Methods 472 new diagnosed cases of esophageal cancer in 2004—2005 and 472 controls were investigated by case-control study. Etiological fractions and interactions between family history of esophageal cancer and other risk factors of esophageal cancer were analyzed. Results The significant independent risk factors included taking hot-meal, preferring pickled-vegetables, preferring dry-rigidity-food, being irritable, drinking polluted-water perennially, family history of esophageal cancer and drinking alcohol a great deal. The etiologic fractions attributable to interaction were 0.855, 0.758, 0.683, 0.464, 0.459, 0.343 and 0.108 respectively. The synergy indexes of family history of esophageal cancer with taking hot-meal and with preferring dry-rigidity-food were both 0.86. Concludes The interactions between family history of esophageal cancer and ill life-behavior-style or drinking polluted-water perennially were particularly significant in the development of esophageal cancer in Dongping County.