1.Progress in dendritic cells immunotherapy
Bowen LIU ; Bin ZHANG ; Xuchen CAO
Journal of International Oncology 2011;38(1):20-23
Cancer immunotherapy is a new approach to cancer treatment. Dendritic cells, the most potent antigen-presenting cells found in humans, have attracted a lot of researches. However, dendritic cells are insufficient to cross-present self-antigens in-vivo. To improve the dendritic cells' antigen-presenting capabilities and the anti-tumor effect, in vitro preparation of dendritic cell vaccine and combination with pro-apoptotic treatments such as chemotherapy are being used.
2.Progress in anti-tumor mechanisms of apigenin
Bowen LIU ; Bin ZHANG ; Zujin CHEN
Journal of International Oncology 2010;37(11):824-827
Apigenin is a plant flavonoid which has various biological activities and pharmacological effects including anti-tumor, antioxidant, anti-inflammatory, sedative and so on, particularly in the anti-tumor areas. It can inhibit proliferation, invasion, metastasis and angiogenesis of tumor cells. In addition, it can also induce apoptosis and enhance chemotherapy sensitivity.
3.Prevention and treatment of experimental orthopaedic infection with a fibrin sealant cefazoline sodium implant
Bowen LIN ; Zhongshi XU ; Deming XIAO ; Weifan LI ; Li ZHANG
Chinese Journal of Trauma 1990;0(03):-
Objective To investigate the effect of fibrin sealant cefazoline sodium implant on prevention and treatment of orthopaedic infection. Methods The fibrin sealant antibiotic implant was made by 10 ml (100 mg/ml) profibrin (Human) mixed with 2.0 g cefazoline sodium, after which 5 ml (200 PE/ml) prothrombin complex concentrate (Human) was added. A total of 24 female New Zealand white rabbits were recruited in the study and divided into three groups, ie, Group A that was implanted with the fibrin sealant antibiotic implant, Group B that was implanted with antibiotic and Group C that was as control. The model of bone infection was made by injecting 0.2 ml(1?10~6 CFU/ml) staphylococcus aureus into the bone hole in tibia of two legs. The histologic and radiologic bone changes were evaluated 2, 4 and 8 weeks after therapy. And in vitro release test was performed. Results There was not evidence of osteomyelitis in Group A, but the osteomyelitis was observed in Groups B and C. Concentration of cefazoline sodium about (1 043.94?0.20) ?g per piece was released from fibrin sealant cefazoline sodium implant within the first 24 hours by in vitro diffusion test but felt to (7.21?0.02) ?g per piece at the 35th day. Conclusion The fibrin sealant cefazoline sodium implant is simple to make and effective in preventing and treating orthopaedic infection as well as in improving repair of the bone defects.
4.Internal fixation of proximal humeral fractures in elderly patients with a locking proximal humerus plate
Bowen LIN ; Deming XIAO ; Zhongshi XU ; Xiaoming ZHANG
Chinese Journal of Orthopaedic Trauma 2004;0(09):-
Objective To discuss the results of treatment of proximal humeral fractures in elderly patients with a locking proximal humerus plate. Methods 35 aged patients with proximal humeral fracture were treated with a locking proximal humerus plate from January 2001 to January 2004. Early rehabilitation after operation was performed. Results 35 cases were followed up for 13.2 months on the average. The mean time for bony union was 8.3 (7 to 12) weeks. 1 patient developed an avascular necrosis of the humeral head. According to the Constant Score, the average for all fractures was 81.4 (39 to 95). The excellent and good rate was 85.7%. Conclusion The locking proximal humeral plate proves to be safe and can be recommended for the treatment of proximal humeral fracture in elderly osteoporotic patients.
5.RET proto-oncogene mutation analysis in a pedigree with multiple endocrine neoplasia 2A
Jin ZHANG ; Xinjuan YU ; Bowen WENG ; Xinhong ZHU
Chinese Journal of Urology 2011;32(9):610-613
ObjectiveTo discuss the clinical diagnosis and treatment of multiple endocrine neoplasia ( MEN ) 2A, and report the mutation of the RET proto-oncogene in a pedigree of three patients with MEN 2A.MethodsBilateral adrenalectomy was performed on two of the three patients with hypertension and bilateral adrenal-conserving adrenal pheochromocytoma resection was performed on the other patient. All three patients were treated by total thyroidectomy and neck lymphadenectomy. Twelve family members were recruited to the study. Peripheral blood was collected and total genomic DNA was prepared for polymerase chain reaction (PCR). PCR products of exon 10 and exon 11 of the RET proto-oncogene were purified and a direct DNA sequence analysis was performed.ResultsThe pathological diagnosis of the specimens was bilateral adrenal pheochromocytoma and medullary thyroid carcinoma in all the three patients. There was no tumor recurrence or distant metastasis after 1.5 - 5 years of follow-up. A missense mutation of TGC (Cys)to CGC (Arg) at codon 634 in exon 11 of the RET proto-oncogene was detected in all three patients. Genetic screening identified two mutation carriers in the other members of this pedigree.ConclusionGenetic mutation screening and surgical intervention may be helpful to the members of high-risk families.
6.Clinical significance of constriction of the fetal ductus arteriosus diagnosed by echocardiography
Yunjiao ZHANG ; Bowen ZHAO ; Zhicong LIU ; Jie CAI ; Shuangyue FAN
Chinese Journal of Ultrasonography 2013;(4):305-307
Objective To explore clinical significance of constriction of fetal ductus arteriosus diagnosed by echocardiography.Methods Seventy-one cases with constriction of fetal ductus arteriosus (DA) and one fetus with premature closure of DA were detected by fetal echocardiography among 2380 singleton fetuses.The echocardiographic characteristics and clinical outcomes were reviewed and analyzed.Results Of 71 cases with constriction of fetal DA,58 cases were found with right heart enlargement,12 cases with tricuspid regurgitation,8 cases with arrhythmia and 1 case with pericardial effusion.The echocardiographic characteristics showed narrowed diameter of DA,dilatation of pulmonary artery and descending aorta was also noted,DA was markedly curved.The peak systolic velocity(PSV) and enddiastolic velocity(EDV) in the ductus arteriosus measured by pulsed Doppler echocardiography increased (PSV≥ 180 cm/s,EDV≥35 cm/s).All cases were confirmed normal by neonate echocardiography.Conclusions Prenatal echocardiography plays important role in diagnosis of constriction of fetal DA.Early diagnosis and intimate follow-up can direct clinician to offer suitable consultation for parents and management for fetuses.
7.Meta-analysis on Randomized Controlled Clinical Trials of Acupuncture and Moxibustion for Rheumatoid Arthritis
Xinghua ZHANG ; Bowen ZHU ; Binyuan ZHAO ; Xiaoguang QIN ; Xiaozheng DU
Chinese Journal of Information on Traditional Chinese Medicine 2015;(2):42-46
Objective To systematically assess the effectiveness and safety of acupuncture and moxibustion for treatment of rheumatoid arthritis. Methods Articles were searched from databases, i.e., CNKI, VIP, WanFang Data, CBM, Embase, and PubMed. Articles about RCT on acupuncture and moxibustion for rheumatoid arthritis and traditional medicine therapy were under meta-analysis. Results Totally 24 articles involving 2006 patients were included. The results of meta-analysis indicated that the overall effective rate of treatment in the group receiving acupuncture and moxibustion was higher than that in the drug group, with statistical significance [OR=2.73, 95%CI (2.18, 3.41), Z=8.78, P<0.000 01]. Sub-group analysis showed that:acupuncture and moxibustion showed statistical significance in decreasing serum RF levels compared with drug therapy [MD=-2.92, 95%CI (-5.60, -0.25), P<0.05]. Acupuncture and moxibustion showed statistical significance in decreasing serum ESR levels compared with drug therapy [MD=-2.99, 95%CI (-4.78, -1.21), P<0.05]. Acupuncture and moxibustion showed statistical significance in decreasing serum CPR levels compared with drug therapy [MD=-1.44, 95%CI (-2.44, -0.44), P <0.05]. Conclusion The overall effective rates of acupuncture and moxibustion for rheumatoid arthritis and the decreasing levels of RF, ESR, CRP are superior to drug therapy, but it still needs larger samples, multi-center, and high quality RCT to verify.
8.The effects of scutellarin on apoptosis and the expression of caspase-8 in human tongue squamous carcinoma Tca8113 cells
Ying ZHANG ; Junmei LI ; Bowen QIN ; Zhihua GE
Tianjin Medical Journal 2015;(3):237-240
Objective To investigate the possible mechanism of scutellarin on the apoptosis of human tongue squa?mous carcinoma Tca8113 cells. Methods Human tongue squamous carcinoma Tca8113 cells were divided into control group and scutellarin groups (80, 120 and 160 mg/L). Tunel method was used to detect the apoptosis. Immunohistochemistry and Western blot assay was used to detect the caspase-8 protein expression of cells. Results (1)The apoptotic rates of Tca8113 cells were significantly high in scutellarin groups (80, 120 and 160 mg/L) than those in control group [(17.63 ± 0.25)%, (36.23±0.36)%, (51.84±0.58)%vs (4.45±0.27)%, P<0.05].(2)Compared with control group, the expressions of cas?pase-8 protein were significantly increased in different concentrations (80, 120 and 160 mg/L) of scutellarin groups (0.283± 0.040 vs 0.474±0.031, 0.592±0.077, 0.781±0.020,P<0.05). Conclusion Scutellarin could obviously induce the apoptosis of human tongue squamous carcinoma Tca8113 cells, which may be related to the caspase-8 protein expression.
9.Tibial plateau fractures treated by internal fixation with bioglue compound and anatomic plate
Deming XIAO ; Zhongshi XU ; Bowen LIN ; Xiaoming ZHANG ; Ji CHEN ;
Chinese Journal of Orthopaedic Trauma 2002;0(03):-
Objective To investigate the clinical effects of bioglue compound and anatomic plate in treatment of tibial plateau fractures. Methods 28 cases of tibial plateau fractures were treated by means of open reduction and internal fixation with bioglue compound and anatomic plate. The intervals between operation and injury ranged from 5 to 10 days. The amounts of bioglue compound implanted ranged from 3 to 8 grams. Results All the patients were followed up for 6 to 22 months. All the fractures healed satisfactorily without sunken joint surface. According to Mechant criteria, the result was excellent in 13 cases, good in 11 cases, moderate in 3 cases and poor in 1 case. The total excellent and good rate was 85.3 %. Conclusion Internal fixation with bioglue compound and anatomic plate can result in good effects in treatment of tibial plateau fractures, because the bioglue compound possesses high bone inductive potentialities to repair bone defects.
10.180° rotated maxillary central incisor: a case report.
Bowen ZHENG ; Ying ZHENG ; Yi LIU ; Yang ZHANG
West China Journal of Stomatology 2015;33(5):551-553
The etiology of rotated maxillary central incisor is unclear, but it has a clear familial tendency. Except for the environmental factors, gene expression directly influences craniofacial growth and the types of malocclusion deformity. In this article, a case of 180° rotated left maxillary central incisor of a male with family history of the deformity was reported. Relevant literature was also reviewed.
Humans
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Incisor
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Male
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Malocclusion
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diagnosis
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Maxilla