1.Application of intraoperative ultrasound and appropriate approach in local resection for the deeply-situated central small hepatocellular carcinoma
Chinese Journal of Current Advances in General Surgery 1999;0(03):-
Objective: To investigate the role of intraoperative ultrasound(IOUS) and appropriate approach in local resection for the central small hepatocellular carcinoma(sHCC) which is deeply situated within the parenchyma and adjacent to the hepatic veins. Methods: under IOUS guidance, local resection was carried out for 8 cirrhotic patients with central sHCC which was deeply located and adjacent to hepatic veins by approach of splitting or unroofing superficial hepatic parenchyma. Results: All tumors were precisely localized by IOUS and excised successfully. Except for injury to central hepatic vein in 1 case, no other injury occurred to the hepatic veins in the remaining 7 cases. There was no postoperative mortality, and the liver function recovered well in all cases postoperatively. Conclusion: Local resection by using IOUS and appropriate approach is applicable for the cirrhotic patients with deeply located central sHCC. IOUS plays an important role in avoidance of injuries to the hepatic veins.
2.Spinal fusion of lumbar intertransverse process in rabbits using two different densities of autologous marrow mesenchymal stem cells combined with ?-TCP
Weimin PAN ; Yunyu HU ; Junwei CHEN
Orthopedic Journal of China 2006;0(14):-
[Objective]To investigate the effects of two different densities of bone marrow mesenchymal stem cells (BMSCs) combined with ?-TCP on spinal fusion in rabbits.[Method]Spinal fusion surgery of lumber intertransverse process were performed using MSCs/?-TCP as a graft in two groups of rabbits (low density group versus high density group),and rate of lumbar fusion,image characteristics,bone mineralization content,bone mineralization density,bone mineralization tissue volume and rate of new bone formation were observed.[Result]Compared with the low intensity group,the rate of lumbar fusion was greatly improved in the high density group(P
3.Role of modified Seldinger technique combined with vascular ultrasonography in the placement of peripherally inserted central catheters in patients with breast cancer undergoing postoperative chemotherapy
Chen XIA ; Aixia LU ; Junwei SUN
Chinese Journal of Clinical Nutrition 2014;22(3):187-190
Objective To investigate the role of modified Seldinger technique combined with vascular ultrasonography in the placement of peripherally inserted central catheters (PICC) in patients with breast cancer undergoing postoperative chemotherapy.Methods Totally 120 patients with breast cancer undergoing postoperative chemotherapy were equally divided into the observation group and the control group using the table of random number.In the observation group,PICC were placed using the modified Seldinger technique combined with vascular ultrasonography; in the control group,the PICC were placed using the traditional blind puncture technique.The success rate of first puncture,success rate of first placement,and the incidences of mechanical phlebitis and thrombosis were compared between two groups.Results The success rate of first puncture,success rate of first placement,and the incidences of mechanical phlebitis were 91.67%,100%,and 3.33%,respectively,in the observation group and 76.67%,86.67%,and 45%,respectively,in the control group (P =0.0061,P =0.0434,and P < 0.0001).However,no significant difference was found on the incidence of thrombosis between the two groups (P =0.1187).Conclusion Modified Seldinger technique combined with vascular ultrasonography is efficient and safe for PICC placement for patients with breast cancer undergoing postoperative chemotherapy.
4.The expression and biological significance of methallothionein in thyroid diseases
Linxing CHEN ; Shenren CHEN ; Zeqin CHEN ; Junwei WU ; Hua HUAN
Chinese Journal of Laboratory Medicine 2003;0(09):-
Objective To research the expression and biological significance of methallothionein(MT) in different thyroid diseases(TDs).Methods The expression of MT was observed by immunohistochemical stain and the difference among TDs was compared.Results MT was completely expressed in all TDs. Expression of MT was 87.60?9.20 in thyroid carcinoma,significantly higher than that(62.20?12.40) in thyroid adenoma, that(61.10?13.20) in Graves′ disease and that(58.50?10.60) in Hashimoto′ thyroiditis (P
5.Functional and Structural Changes of Lower Motor Neuron Distal to the Site of Rats with Spinal Cord Transection at T10
Guoxing XIONG ; Yi HONG ; Junwei ZHANG ; Shizheng CHEN ; Hua GUAN
Chinese Journal of Rehabilitation Theory and Practice 2015;21(2):142-147
Objective To investigate the structural and functional changes of lower motor neuron distal to the site of spinal cord injury in rats. Methods Seventies Sprague-Dawley rats were divided randomly into 6 groups: sham-operation group (controls, n=10) and 3 day group (n=10), 1 week group (n=10), 2 week group (n=10), 4 week group (n=15) and 8 week group (n=15) after spinal cord transaction at T10. Neuronal apoptosis and acetylcholinesterase (AChE) activity of spinal cord at L4- 6 were observed by using the terminal deoxynucleotidal transferase- mediated DUTP-biotin nick end labeling (TUNEL) method and the semiquantitative enzyme cytochemistry, respectively. Results The assessment of apoptosis by TUNEL labeling showed that fluorescent markers were observed occasionally in anterior horn distal to the site of injury. The optical density (OD) value of AchE positive motor neurons (area > 300 μm2) initially decreased about 3 days after transaction and then overshot 1 week or so. However, after that, the OD value decreased again, the lowest about 4 weeks. Then the OD value increased again, though at 8 weeks was still lower than that of controls (P<0.05). Conclusion The findings on indistinctive apoptosis provided the proof of no significant changes of lower motor neuron distal to the site of transection. Semiquantitative histochemical results about AChE reflected marked metabolic changes of motoneurons caudal to the transaction, which represented as part of functional reorganization.
6.Meta-analysis of acupuncture-moxibustion treatment of overactive bladder in adults in the past decade
Wen LI ; Junwei HU ; Zhu JIN ; Yuelai CHEN
Journal of Acupuncture and Tuina Science 2023;21(1):82-90
Objective: To systematically assess the effectiveness and safety of using acupuncture-moxibustion therapy alone to treat adult overactive bladder (OAB) by taking oral Western medication solely as the control, and to provide evidence-based reference for acupuncture-moxibustion treatment of OAB. Methods: A systemic search was conducted through China National Knowledge Infrastructure (CNKI), Wanfang Academic Journal Full-text Database (Wanfang), Chongqing VIP Database (CQVIP), China Biology Medicine Disc (CBM), PubMed, Cochrane Library, and Excerpta Medica Database (EMBASE). RevMan 5.3 was used for meta-analysis. Statistical descriptions were made using standardized mean difference (SMD), confidence interval (CI), and risk ratio (RR). Results: Eight randomized controlled studies were finally recruited and were analyzed after being grouped according to intervention methods. Regarding urinary symptoms, compared with sole use of oral Western medication, acupuncture plus moxibustion can more effectively reduce 24 h urinary frequency [P=0.01, SMD=-0.57, 95%CI (-1.02, -0.12)], 24 h nocturia frequency [P=0.03, SMD=0.49, 95%CI (0.05, 0.94)], and OAB syndrome score (OABSS) [P<0.001, SMD=-3.67, 95%CI (-4.48, -2.86)]. Acupuncture combined with moxibustion and oral Western medication work equivalently in comparing 24 h urinary urgency frequency [P=0.38, SMD=-0.17, 95%CI (-0.57, 0.22)], 24 h urgent incontinence frequency [P=0.25, SMD=0.26, 95%CI (-0.18, 0.70)], and single voiding volume [P=0.22, SMD=1.15, 95%CI (-0.70, 3.00)]. There were no significant differences between acupuncture/electroacupuncture and oral medication in comparing 24 h urinary frequency [P=0.46, SMD=0.07, 95%CI (-0.12, 0.26)], 24 h urinary urgency frequency [P=0.18, SMD=0.70, 95%CI (-1.71, 0.32)], 24 h nocturia frequency [P=0.46, SMD=-0.71, 95%CI (-2.60, 1.17)], 24 h urgent incontinence frequency [P=0.08, SMD=-0.22, 95%CI (-0.48, 0.03)], single voiding volume [P=0.09, SMD=0.17, 95%CI (-0.02, 0.36)], or OABSS [P=0.96, SMD=-0.07, 95%CI (-2.65, 2.52)]. Compared with oral Western medication, moxibustion can more effectively reduce 24 h urinary frequency [P<0.001, SMD=-6.53, 95%CI (-7.65, -5.44)] and 24 h urinary urgency frequency [P<0.001, SMD=-1.6, 95%CI (-2.85, -0.36)]. In comparing the adverse reaction rate, acupuncture-moxibustion was associated with a lower rate compared with oral medication [P=0.002, RR=0.07, 95%CI (0.01, 0.37)], but the difference was statistically insignificant between acupuncture/electroacupuncture and oral medication [P=0.40, RR=0.57, 95%CI (0.16, 2.12)]. Conclusion: Acupuncture-moxibustion is equivalent to the sole use of oral Western medication in improving urinary symptoms in OAB patients and has a higher safety rating.
7.Treatment of carotid atherosclerosis stenosis with eversion carotid endarterectomy
Dong CHEN ; Junwei SHI ; Zhiqun WU ; Xiaolei LENG ; Wende XIONG
Chinese Journal of Postgraduates of Medicine 2009;32(35):26-28
Objective To evaluate the clinical value of eversion carotid endarterectomy in patients with carotid atherosclerosis stenosis. Method Summarized the clinical data of 20 patients who accepted eversiou carotid endarterectomy from March 2009 to August 2009, compared the outcomes with preoperative and postoperative image learnt materials and clinical symptoms. Results All cases finished successfully. All clinical symptoms were improved after operation. The stenosis were all improved completely on the image after operation. Conclusions Eversion carotid endarterectomy is safe, effective, and shortening operative time and hospitalization time. It has low restenosis rate, thicken endometrium and plaque can be stripped completely.
8.Construction, purification and substrate specificity identification of recombinant human platelet-activating factor acetylhydrolase isoformⅠ
Xiaoying CHEN ; Jing XU ; Junwei YANG ; Yixuan ZHANG
Journal of Shanghai Jiaotong University(Medical Science) 2009;29(10):1152-1156
Objective To construct and purify the recombinant protein of platelet-activating factor acetylhydrolase (PAF-AH) isoform I , and study the enzyme activity by different substrates. Methods The (3 subunit of PAF-AH isoform I was cloned and expressed in E. coli. Exogenously expressed recombinant protein was purified to SDS-PAGE homogeneity, and its activity was identified by arylesterase detection. Phenylacetate, 1-O-hexadecyl-2-deoxy-2-thioacetyl-sn-glycero-3-phosphocholine ( 2-Thio PAF) and l-myristoy1-2-( 4-nitrophenylsuccinyl) phosphatidylcholine (the latter two were commercial plasma PAF-AH substrates) were used for the substrate identification. The plasma type PAF-AH was served as positive control. Results Recombinant protein of β subunit of PAF-AH isoform I was successfully constructed and expressed in E. coli after purification. Compared with positive control, the recombinant protein could hydrolyze phenylacetate and 2-Thio PAF, but could not hydrolyze l-myristoyl-2-( 4-nitrophenylsuccinyl) phosphatidylcholine. Conclusion Recombinant protein of β subunit of PAF-AH isoform I can be successfully constructed. There are differences in the substrate specification to the two commercial PAF substrates for PAF-AH isoform I and plasma type PAF-AH, which provides a quick method to differentiate PAF-AH isoform I from plasma type PAF-AH.
9.Beh(c)et disease with venous sinus thrombosis
Jingnui GUO ; Junwei CHEN ; Xiaofeng LI ; Junxia LI
Chinese Journal of Rheumatology 2013;17(8):546-548
Objective To explore the key points of diagnosis and treatment of Behcet's disease with venous sinus thrombosis.Methods The diagnosis and treatment of a 25 year-old female patient with recurrent headaches was analyzed and discussed.Results Her headache was due to Behcet's disease with venous sinus thrombosis and her symptoms were gradually relieved.Conclusion Physician should be asked about the history in patients with persistent headache and the correct diagnosis can be made by MRI.
10.Relationship between medical papers published in SCI-covered journals and funds
Junwei WU ; Xue WANG ; Lei ZHANG ; Shuo CHEN ; Liyan LONG
Chinese Journal of Medical Library and Information Science 2017;26(5):44-48
The relationship of medical papers and growth tendency with medical and health funds in different countries of the world was studied by analyzing SCI-covered medical papers published in 2007-2016,which showed that medical and health field was one of the research hotspots in the world,the number of papers published by the top 10 countries showed a growth tendency,their medical and health funds were closely related with the production of scientific papers (r=0.99),and the compound growth rate of medical and health funds was closely related with that of the number of scientific papers (r=0.91).