1.Biliary reconstruction and treatment of biliary complications in orthotopic live r transplantation
Tianfu WEN ; Lunan YAN ; Bo LI
Chinese Journal of Organ Transplantation 2005;0(08):-
Objective To investigate the technique of b iliary reconstruction and treatment of biliary complications in orthotopic liver transplantation (OLT). Methods From Feb. 1999 to Jan. 2003, OLT was performed in 103 patients with end-stage l iver disease. OLT was performed with standard techniques with or without a veno -venous bypass. Reconstructions of biliary tract were performed using choledoc hocholedochostomy (CDC) or Roux-en-Y choledochoje- junostomy (RCDJ). CDC was carried out in 94 cases, with T tube (CDCT) in 62 cases and without T tube (CDCO ) in 32 cases respectively. Among the 32 cases without T tube, 11 had a small tu be placed in the common bile duct through the recipient cystic duct. RCDJ was pe rformed in 9 cases without internal stent. Diagnosis of the biliary complication s after OLT was based on the clinical manifestations, ultrasound findings, MRCP and ERCP. All the patients were followed up regularly after discharge for 12 to 48 months. Results The overall incidence of biliary complications in 103 patients after OLT was 7 .8% (8/103). Of the 62 cases of CDCT posttransplant, biliary complications occ urred in 6 cases ( 9.6% ), including 4 cases of bile leaks following OLT and 2 cases of bile leaks following T-tube removed. Of the 32 patients subject to CD CO, 1 ( 3.1% ) had stricture of anastomosis. Of the 9 cases subject to RCDJ, one patient was complicated with bile leaks at the anasto mosis. Two cases of the bile leaks were drained reoperatively, and others were k ept adequate drained. The patient with stricture of CDCO was cured by balloon di latation and stent placed endoscopically. No death associated with biliary compl ications occurred. Conclusions Bile leaks and stricture of anatomosis are the common biliary complications afte r OLT. Good blood supply to biliary tract and surgical technique are the keys to prevent biliary complications after OLT. The timely endoscopical and radiologic al technique is a valuable nonoperative precedure for diagnosis and treatment of biliary complicat ions.
2.SAR of benzoyl sulfathiazole derivatives as PTP1B inhibitors.
Wen-Wen YIN ; Zheng CHEN ; Yan-Bo TANG ; Fei YE ; Jin-Ying TIAN ; Zhi-Yan XIAO
Acta Pharmaceutica Sinica 2014;49(5):632-638
Protein tyrosine phosphatase (PTP) 1B is a potential target for the treatment of diabetes and obesity. We have previously identified the benzoyl sulfathiazole derivative II as a non-competitive PTP1B inhibitor with in vivo insulin sensitizing effects. Preliminary SAR study on this compound series has been carried out herein, and thirteen new compounds have been designed and synthesized. Among them, compound 10 exhibited potent inhibition against human recombinant PTP1B with the IC50 value of 3.97 micromol x L(-1), and is comparable to that of compound II.
Humans
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Protein Tyrosine Phosphatase, Non-Receptor Type 1
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antagonists & inhibitors
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Structure-Activity Relationship
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Sulfathiazoles
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chemistry
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pharmacology
3.Application of functional neck dissection for lower collar-shaped incision at hair margin behind ear in the treat-ment of differentiated thyroid cancer
Jianjie ZHAO ; Xiaohua ZHANG ; Bo GAO ; Yan JIANG ; Yayuan WEN
Journal of Regional Anatomy and Operative Surgery 2015;(5):494-496
Objective To explore role of functional neck dissection for lower collar-shaped incision at hair margin behind ear in the treatment of differentiated thyroid cancer. Methods The clinical data of 11 patients with thyroid papillary carcinoma who underwent func-tional neck dissection for lower collar-shaped incision at hair margin behind ear were retrospectively analyzed. Results The incisions of all patients were unseen in daily life and patients were satisfied with the postoperative appearances. No case of shoulder syndrome,postoperative local recurrence and distant metastasis was observed. Conclusion Functional neck dissection for lower collar-shaped incision at hair margin behind ear is effective in the treatment of differentiated thyroid cancer. Meanwhile it can obviously improve patients’ postoperative appearance and life quality,therefore it is worth clinical application.
4.Investigation and molecular identification of Anisakis infection in marine fish sold in Fuxin, Liaoning Province
REN Yan-yan ; DU Bo ; GAI Nan-nan ; XIU Min ; LIU Wen-xin
China Tropical Medicine 2023;23(5):489-
Abstract: Objective To investigate the infection of Anisakis in marine fish sold in Fuxin, and conduct molecular identification and evolutionary tracing of third-stage larvae to determine Anisakis species. Methods From 2018 to 2021, marine fish sold in the market were collected randomly, and the third stage larvae of Anisakis were detected in marine fish sold in the market by direct dissection, and the morphological characteristics were used to preliminarily identify species by microscopy; the total DNA was extracted, the internal transcribed spacer sequence of the ribosomal DNA of Anisakis was amplified, and the sequence alignment and evolution analysis were carried out. Results A total of 289 market-sold sea fish samples of marine fish sold in the market were dissected and 84 samples of Anisakis were detected with a detection rate of 29.1%, of which the infection rates of hairtail and small yellow croaker were higher, at 41.4% and 41.2%, respectively. BLAST comparison of 28 sequences revealed eight species of anisakids, including Anisakis pegreffii, Anisakis simplex, Anisakis typical, Raphidascaris trichiurid, Contracaecum muraenesoxi, Hysterothylcaium zhoushanensis, Hysterothylacium amoyense and Hysterothylcaium fabri,belonging to the genera Anisakis and Hysterothylacium. The phylogenetic tree constructed from 28 sequences generally formed two topological branches, with Anisakis pegreffii, Anisakis simplex, and Anisakis typical forming three separate clusters as the topology branch of Anisakis genus. However, meanwhile, Hysterothylacium, Contracaecum, and Raphidascaris formed a separate topological branch. Conclusions The marine fish sold in Fuxin City have severe anisakid infection, with a wide variety of anisakid species, the dominant species being Anisakis pegreffii.
5.Expression of PSF1 in colon cancer tissues and its effect on the proliferation of colon cancer cells.
Ji-zhi WEN ; Xiao-yan HAN ; Bo WEI ; Shi ZHANG ; Hong-bo WEI
Chinese Journal of Gastrointestinal Surgery 2013;16(1):70-74
OBJECTIVETo detect the expression of PSF1 (partner of Sld five 1) in colon cancer specimens, and to explore the effect of RNA interference targeting PSF1 on the proliferation of colon cancer cells and its mechanism.
METHODSExpression level of PSF1 protein in colon cancer specimens was detected by Western blot in 40 patients with colon cancer from May 2004 to December 2006. The short hairpin RNA (shRNA) plasmid targeting PSF1 was transfected into LOVO, HT-29 and HCT116 cells with liposome, then the expression level of PSF1 protein was measured by Western blot, the effect of PSF1 shRNA plasmid transfection on cell proliferation by MTT assay, anchorage-independent growth by soft agar colomy-formation assay, and PSF2, PSF3 and SLD5 mRNA expression by quantitative reverse transcription polymerase chain reaction.
RESULTSThe relative expression level of PSF1 protein in colon cancer tissues was 0.485±0.113, which was significantly higher than that in adjacent normal mucosa tissues (0.056±0.014, P<0.01). Western blot showed that the expression level of PSF1 protein was significantly decreased in colon cancer cells transfected with PSF1 shRNA plasmid. After PSF1 shRNA plasmid transfection, cell proliferation was significantly suppressed, the soft agar colony-forming rates of LOVO, HT-29 and HCT116 cells were significantly lower than those in control groups (P<0.05), meanwhile the expression levels of PSF2, PSF3 and SLD5 mRNA were significantly decreased (P<0.05).
CONCLUSIONSPSF1 is significantly up-regulated in colon cancer tissues compared with adjacent normal mucosa tissues. ShRNA plasmid targeting PSF1 can inhibit the expression of PSF1 gene, suppress the proliferation of colon cancer cells, suggesting that it may be a new therapeutic target for colon cancer.
ATP-Binding Cassette Sub-Family B Member 2 ; ATP-Binding Cassette Transporters ; genetics ; metabolism ; Adult ; Aged ; Cell Line, Tumor ; Cell Proliferation ; Colonic Neoplasms ; metabolism ; pathology ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; Male ; Middle Aged ; RNA Interference ; RNA, Small Interfering ; genetics ; Transfection
6.Chemical constituents from Callicarpa nudiflora and their cytotoxic activities.
Yan-Chun MA ; Min ZHANG ; Wen-Tong XU ; Shi-Xiu FENG ; Ming LEI ; Bo YI
China Journal of Chinese Materia Medica 2014;39(16):3094-3101
The chemical consitituents from cytotoxic fraction of the Callicarpa nudiflora extract were isolated and purified by a combination of HP-20 macroporous resin, silica gel and Sephadex LH-20 column chromatographies. The structures were elucidated on the basis of the spectroscopic data and comparison of their spectroscopic data with reported data. The cytotoxicity was evaluated by the MTT assay. The 50% and 70% EtOH elutions of EtOH-extract showed significant cytotoxic activities, leading to the isolation of twelve compounds, which were identified as luteoloside(1), lutedin-4'-O-β-D-glucoside(2), 6-hydroxyluteolin-7-O-β-glucoside(3), lutedin-7-O-neohesperidoside(4), rhoifolin (5), luteolin-7, 4'-di-O-glucoside (6), forsythoside B (7), acteoside (8), alyssonoside (9), catalpol(10), nudifloside(11), and leonuride(12). Compounds 3-6, 10 and 12 were isolated from this genus for the first time, and compound 9 was isolated from this plant for the first time. The cytotoxicity assay demonstrated that flavonoids 1-6, in various concentrations, showed monolithic proliferation inhibitory activities against Hela, A549 and MCF-7 cell lines. Compounds 3, 5 and iridoid glycoside 11 possessed higher cytotoxicacivities. In short, flavonoids are the main components of cytotoxic extract from C. nudiflora, while phenylethanoid glycosides are the predominant ingredient but inactive to cancer cell lines. In addition, the minor iridoid glycoside expressed weak cytotoxic activity.
Callicarpa
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chemistry
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Cell Proliferation
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drug effects
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Cytotoxins
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chemistry
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isolation & purification
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pharmacology
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Drugs, Chinese Herbal
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chemistry
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isolation & purification
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pharmacology
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Humans
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MCF-7 Cells
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Molecular Structure
7.Optimization of formulas of Quban gel by uniform design.
Hong-Ye GUO ; Xiao-Ping YAN ; Bo-Wen YI ; Rui ZHENG ; Ying KUANG
China Journal of Chinese Materia Medica 2013;38(23):4076-4078
OBJECTIVETo optimize formulas of Quban gel.
METHODThe U6 (6(2) x 3) uniform design was adopted to optimize gel formulas, with rheological parameters, such as viscosity and yield value in room temperature, viscosity and yield value in average temperature of skin, thixlotropy.
RESULTThe optimum proportion of matrix was made of 1.0 g carbomer 940, 5 mL glycerin and pH value 5-6.
CONCLUSIONThe regression model for gel matrix quality and gel rheological parameters was established to directly reflect the impacting effect of various factors, and provide certain preference basis for the screening of gel matrix formulas. Quban gel prepared by the method was evenly distributed, moderately viscous and highly thixotropic
Chemistry, Pharmaceutical ; methods ; Drugs, Chinese Herbal ; chemistry ; Gels ; Quality Control ; Regression Analysis ; Viscosity
8.Application of three-dimensional technology in assessment of burn area and treatment strategy of burns.
Wen-bo SHENG ; Guosheng DONG ; Yan WAN ; Li YAO ; Hongtai TANG ; Zhaofan XIA
Chinese Journal of Burns 2014;30(4):353-355
Accurate area assessment of a burn injury and its treatment according to its depth of injury are the foundation of burn treatment due to its complexity, and various techniques and methods have been employed to solve these problems for many years. As the demand of modern medicine calls for individualized and precise therapeutic measures, it is clear that the traditional diagnostic and treatment measures are insufficient. The flourishing development of three-dimensional (3D) technology seems to provide new research approaches and technical opporturities for burn surgery. A series of techniques such as 3D model, 3D scanning, and 3D printing may be promising in advancing burn surgery through basic research to achieve rational clinical applications in the future. In this paper, the applications and achievements of 3D technology in burn surgery in recent years are summarized.
Body Surface Area
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Burns
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diagnosis
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pathology
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therapy
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Humans
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Image Processing, Computer-Assisted
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methods
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Therapy, Computer-Assisted
9.Meningeal hemangiopericytoma: a clinicopathologic study of 17 cases.
Hai-Bo WU ; Hai-Yan WENG ; Min DING ; Ping GU ; Xiao-Qiu WANG ; Wen ZHONG
Chinese Journal of Pathology 2011;40(4):251-252
Adult
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Aged
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Antigens, CD34
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metabolism
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Chondrosarcoma, Mesenchymal
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metabolism
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pathology
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Diagnosis, Differential
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Female
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Follow-Up Studies
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Hemangiopericytoma
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metabolism
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pathology
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radiotherapy
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surgery
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Humans
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Male
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Meningeal Neoplasms
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metabolism
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pathology
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radiotherapy
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surgery
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Meningioma
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metabolism
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pathology
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Middle Aged
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Neoplasm Recurrence, Local
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Proto-Oncogene Proteins c-bcl-2
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metabolism
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Solitary Fibrous Tumors
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metabolism
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pathology
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Vimentin
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metabolism
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Young Adult
10.Case-control study on cold compress for acute ankle sprain.
Yan WANG ; Yu-yun WU ; Wen-qiong ZHAO ; Wei ZHANG ; Bo CHEN ; Hao ZHANG ; Jian PANG
China Journal of Orthopaedics and Traumatology 2015;28(12):1091-1094
OBJECTIVETo explore rest, cold compress and elevate (RICE) with rest, compress and elevate (RCE) without cold for the treatment of acute ankle sprain, in order to clear mid-term clinical effects.
METHODSEighty-nine patients with acute ankle sprains were collected from January 2013 to March 2014,including 30 males and 59 females aged from 18 to 60 years old with an average of 36 years old; the time from injury to hospital ranged from 3 to 24 h with an average of 9 h. All patients were divided into two groups according to visiting sequence. There were 45 patients in RICE group, and 45 patients in RCE groups. The main therapeutic effect index was evaluated by Karlsson scoring, and secondary therapeutic effect index was pain and satisfactory VAS scores. Safety index evaluated by adverse event.
RESULTSOn the 2nd weeks after injury, Karlsson score in RICE group was 44.66 ± 11.58, and 46.67 ± 8.52 in RCE group, while there was no statistical significance between two groups in Karlsson scores (P > 0.05). Karlsson score of two groups after treatment were higher than before treatment. There was no significantly meaning in pain and satisfactory VAS scores between two groups (P > 0.05). No adverse reaction were occurred between two groups.
CONCLUSIONCold compress did not receive much more final gains, and no evidence showed cold compress could affect recovery of joint function.
Acute Disease ; Adolescent ; Adult ; Ankle Injuries ; physiopathology ; therapy ; Case-Control Studies ; Cold Temperature ; Female ; Humans ; Male ; Middle Aged ; Sprains and Strains ; physiopathology ; therapy