1.The effect of preoperative percutaneous transhepatic biliary drainage on postoperative short-term outcomes after pancreaticoduodenectomy
Chengjun LU ; Yijun WANG ; Zhi DU ; Qiang YUAN ; Jun WANG ; Guiming SHU
Chinese Journal of Hepatobiliary Surgery 2011;17(11):891-893
ObjectiveTo evaluate the effect of preoperative percutaneous transhepatic biliary drainage (PTBD) on postoperative outcomes after pancreaticoduodenectomy.MethodsThe clinical data of 115 patients undergoing pancreatoduodenectomy between 2001 and 2009 were retrospectively analyzed.The diagnosis of periampullary cancer or cancer of the pancreatic head was confirmed histologically.The preoperative total bilirubin level was more than 100 μmol/L and there was no concomitant cholangitis.Forty-two patients underwent PTBD (PTBD group),and 73 were not drained (early operation group).The following parameters were analyzed:wound infection,intra-abdominal abscess,intra-abdominal or gastrointestinal bleeding,biliary or pancreatic leakage,gastroparesis,morbidity and mortality.The length of hospital stay and cost were also assessed.ResultsThe perioperative mortality and morbidity were 2.38%/54.76% in the PTBD group and 2.74%/50.68% in the early operative group,respectively.There were no significantly differences between these two groups.Similar results were obtained in biliary leak,pancreatic leak,intra-abdominal infection,wound infection and gastroparesis.The length of hospital stay and cost were significantly less in the early operation group than the PTBD group.ConclusionsPTBD had no beneficial effects on postoperative outcomes following pancreaticoduodenectomy.For distal biliary obstruction,PTBD should not be carried out routinely.
2.Application of Habib 4X in hepatic resection
Zhi DU ; Yijun WANG ; Chenxuan WU ; Qiang YUAN ; Xiang JING ; Guiming SHU ; Jun WANG ; Cheng LOU
Chinese Journal of Digestive Surgery 2011;10(1):33-35
Objective To investigate the value of Habib 4X in hepatic resection. Methods The clinical outcome of 21 patients with liver disease who received liver resection at the Tianjin Third Central Hospital from November 2009 to April 2010 were retrospectively evaluated. All the operations were carried out by using Habib 4X. Results All patients received hepatectomy, including right hepatectomy in three patients, left hepatectomy in one patient, multiple segmentectomy in nine patients, single segmentectomy in seven patients and partial liver resection in one patient. All tumors were reseeted completely. The mean operation time was (50±25) minutes and the mean blood loss was(129±117)ml. No patient was transferred to ICU. Three patients were complicated with bile leakage, one with lymphatic leakage and four with pleural effusion, and they were cured by non-surgical treatment. There were no patients with postoperative hemorrhage, incision infection or hepatic failure. No mortality was observed. The mean postoperative hospital stay was(19±14)days. Conclusions Radiofrequency energy was applied along the margins of the tumor to create zones of necrosis before resection with a scalpel, offering hepatobiliary surgeons an additional method for performing liver resections with minimal blood loss, low morbidity and mortality rates. As for malignant tumors, minor or major liver resection assisted by Habib 4X is safe, and it can reduce the chance of positive incisal margin.
3.Clinical analysis of 5 cases of duodenal gastrointestinal stromal tumors
Guoxiang ZHANG ; Zhi DU ; Yijun WANG ; Fuhua NIE ; Qiang YUAN ; Wei SUN ; Guiming SHU
Chinese Journal of Hepatobiliary Surgery 2010;16(11):839-841
Objective To analyze the features of clinical diagnosis and treatment of duodenal gastrointestinal stromal tumors(GIST).Methods Retrospective analysis was performed on clinical data of 5 cases of duodenal GIST treated in our hospital between April 2002 and May 2009.Results The duodenal GIST was mainly located in the 2nd(3/5)and 3rd portion of duodenum(2/5).Clinical diagnosis of the disease mainly depended on barium meal examination, gastrointestinal endoscopy, and CT scanning.Two patients were treated with pancreaticoduodenectomy, 1 with segmental duodenectomy and 2 with local resection.After operation, 2 patients had recurrence and 1 of them underwent adjuvant therapy with Gleevec.Conclusion Surgical resection is the only effective therapeutic method for duodenal GIST.Various surgical procedures are mainly determined by the location and size of the tumors.For patients with a high degree of pathologic grade, adjuvant therapy with Gleevec is necessary.
4.Effects of transcatheter arterial chemoembolization in combination with portal vein chemotherapy on survival of patients after resection of hepatocellular carcinoma
Jianbin ZHUANG ; Yijun WANG ; Zhi DU ; Fuhua NIE ; Guiming SHU ; Jun WANG ; Chengjun LU ; Qiang YUAN
Chinese Journal of Hepatobiliary Surgery 2010;16(8):579-581
Objective To study the value of transcatheter arterial chemoembolization (TACE)in combination with portal vein chemotherapy (PVC) after resection of hepatocellular carcinoma to prolong survival. Methods From January 2000 to July 2007, 168 patients with hepatocellular carcinoma (HCC) underwent tumor resection in our hospital. After operation, TACE in combination with PVC was performed in 48 patients (combined group), TACE alone in 26 (TACE group), PVC alone in 50 (PVC group) and none of the above in 44 (control group). All the patients were followed up for 17-96 months. The 1-, 3-and 5-year survival rates were compared among the 4 groups. Results Accumulative 1-, 3-and 5-year survival rates were higher in the combined and TACE groups than in PVC and control groups. Conclusion After resection of HCC, combined use of TACE and PVC is the same as TACE in prolonging patient survival. However, it is better than PVC alone and non-surgical procedure.
5.Research advances on antitumor mechanism of NK cells and its application in cancer targeted therapy
Shu-fen ZHANG ; Ying-ping ZENG ; Ting-ting MENG ; Hong YUAN ; Fu-qiang HU
Acta Pharmaceutica Sinica 2022;57(1):122-133
Natural killer (NK) cells, as an essential part of innate immunity, can directly identify and kill tumor cells after being activated by the synergistic action of surface inhibitory receptors and activated receptors. It can secrete cytokines to recruit dendritic cells (DCs), induce DCs maturation and enhance adaptive immune response. It can target cancer stem cells (CSCs) and circulating tumor cells (CTCs) to inhibit cancer metastasis. NK cells have a unique inflammatory tendency, which can respond to cytokines and chemokines released from tumor sites and migrate to tumor sites, making them occupy an important advantage in cancer targeted therapy. The research on cancer targeted therapy of NK cells as drug delivery carriers, NK cell membrane-coated biomimetic nanoparticles, and NK cell extracellular vesicles (NKEVs) has attracted more and more attention. The article will focus on the mechanism of NK cells inhibiting cancer, and summarize the research progress of cancer targeted therapy of NK cells.
6.Chemical composition and pharmacological activities of astragali radix.
Qiang ZHANG ; Wen-Yuan GAO ; Shu-Li MAN
China Journal of Chinese Materia Medica 2012;37(21):3203-3207
Astragali Radix, as a tonic with a long history, is one of the most common traditional Chinese medicines. Recently, chemical composition and pharmacological activities of Astragali Radix have been widely reported. Polysaccharide, triterpenes and flavonoids are regarded to its effective components. Pharmacological experiments and clinical reports show that Astragali Radix has good effects on immune-regulation, anti-tumor, anti-virus, diabetes, anti-aging and so on. Therefore, it shows a good prospect to make good use of its effective components.
Astragalus Plant
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chemistry
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Drugs, Chinese Herbal
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chemistry
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pharmacology
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Polysaccharides
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analysis
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Triterpenes
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analysis
8.Cloning and bioinformatic analysis of TAGLN2 cDNA of Bufo japonicus formosus.
Hui ZHUGE ; Jin-Qiang YUAN ; Shu-Fang ZHANG ; Xian-Yu YANG
Acta Pharmaceutica Sinica 2013;48(2):250-254
To study the bioactive polypeptides included in Bufo skin and its secretions the plasmid skin cDNA library of adult Japanese toad Bufo japonicus formosus was prepared. The pSD64TR has been used as the vector and the cloning sites are Xho I and EcoR I. To screen cDNAs encoding bioactive components, the plasmid cDNA library was transformed into E. coli DH5 competent cells, and positive colonies were screened by colony PCR (polymerase chain reaction). The suspension of a single colony in LB medium was used as the template, SP6 (the upstream primer of the plasmid cDNA library) and a primer with Xho I site and polyT were used as the primers. As the result, 465 positive colonies out of 1 344 were obtained and their plasmid were collected and sequenced. By homologous analysis, it was found that one of the cDNAs encoding a peptide with high homolog with transgelin-2, which was registered in GenBank (accession number: JX197456), and it was indicated as a partial cDNA sequence with a deletion at the 5' end. The transcript is 997 bp consisting of 31 bp 5', 618 bp 3' untranslated region (UTR) and an open reading frame (ORF) of 348 bp encoding a polypeptide of 115 amino acids. In the putative protein product, there is a calponin homology domain, two cysteine residues for a disulfide bond and three a-helix domains, and five potential phosphorylation sites. The homologous analysis indicates 90% similarity with Xenopus (Silurana) tropicalis and 89% with Xenopus laevis, and 71%-85% with other species.
Amino Acid Sequence
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Animals
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Base Sequence
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Bufonidae
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genetics
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metabolism
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Cloning, Molecular
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Gene Library
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Microfilament Proteins
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chemistry
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genetics
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metabolism
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Muscle Proteins
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chemistry
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genetics
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metabolism
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Open Reading Frames
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Phosphorylation
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Phylogeny
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Plasmids
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genetics
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Sequence Homology, Amino Acid
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Skin
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metabolism
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Xenopus
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genetics
9.Study on serum levels of E- selectin, integrin beta 1 subunit and intercellular adhesion molecule-1 in gastric cancer patients and their clinical implications.
Qin-shu SHAO ; Zai-yuan YE ; Zhi-qiang LING ; Wei ZHANG ; Xue-rong CHEN
Chinese Journal of Gastrointestinal Surgery 2005;8(2):155-158
OBJECTIVETo evaluate the serum concentrations of E- selectin, integrinbeta(1) subunit and intercellular adhesion molecule-1 in gastric cancer patients and their clinicopathological significance.
METHODSThe serum levels of adhesion molecules E- selectin,intercellular adhesion molecule- 1 (ICAM- 1), and integrinbeta(1) were measured by enzyme-linked immunosorbent assay (ELISA) in 47 health subjects (control group) and in 57 patients with gastric cancer (gastric cancer group) before operation and 7 days after operation. Serum levels of above three factors were compared between the two groups.
RESULTSThe serum concentrations of E- selectin, integrinbeta(1) subunit and ICAM- 1 were higher in gastric cancer group with positive rate of 24.6% ,33.3% ,28.1% respectively. ICAM- 1 and integrinbeta(1) were significant higher in gastric cancer group than that in the control group (P< 0.01),but there was no significant difference in E- selectin between two groups (P=0.64). Serum concentrations of E-selectin, ICAM-1,and integrinbeta(1) were significantly correlated with clinicopathological features as following: clinicopathological stage,invasion depth,lymph node involvement,and presence of distant metastases(P< 0.05,P< 0.01). The serum levels of E- selectin, ICAM- 1, and integrinbeta(1) were decreased significantly after radical resection of gastric cancer,but not in patients with unresectable tumor. Elevated levels of three molecules were significant prognostic factors for patients with gastric cancer,but it could not independently be used to evaluate tumor stage.
CONCLUSIONSSerum concentrations of E- selectin, ICAM- 1,and integrinbeta(1) may reflect tumor progression and metastasis.
Adult ; Aged ; Biomarkers, Tumor ; blood ; E-Selectin ; blood ; Female ; Humans ; Integrin beta1 ; blood ; Intercellular Adhesion Molecule-1 ; blood ; Lymphatic Metastasis ; Male ; Middle Aged ; Neoplasm Staging ; Prognosis ; Serum ; metabolism ; Stomach Neoplasms ; metabolism ; pathology
10.Clinical application of atlantoaxial pedicle screw internal fixation for treatment of atlantoaxial dislocation.
Yong-Jun YANG ; En-Zhong ZHANG ; Yuan-Chao TAN ; Ji-Ping ZHOU ; Shu-Qiang YAO ; Chuan-Jie JIANG ; Pei-Yan CONG
China Journal of Orthopaedics and Traumatology 2009;22(11):832-834
OBJECTIVETo investigate the clinical effect of atlantoaxial pedicle screw internal fixation for treatment of atlantoaxial dislocation.
METHODSSixteen patients with atlantoaxial dislocation were treated from Dec. 2005 to June 2007, included 10 males and 6 females, aged from 38 to 45 years old (means 40.5 years). Among them 12 patients combined with nerve injury, according to ASIA grade: there were 3 cases in grade B, 5 cases in grade C, 4 cases in grade D. All patients received preoperative CT, radiograph and skull traction. Intraoperative posterior approach general spine pedicle screw-rod orthopaedics fixation system used and iliac bone block were implanted in space of posterior atlantal arch and axial vertebral plate. The outcome and complications were observed in the near future.
RESULTSThere was no vascular or neural injury found. The patients were followed up for 12 to 24 months (means 18 months). All head pain, acid storm symptoms were improved after operation. According to the Odom's clinical efficacy evaluation standard, 12 cases were excellent, 4 were good. Eleven cases of 12 with nerve injury recovered significantly. By ASIA classification: 1 cases was in grade B, 2 cases were in grade C, 5 cases were in grade D, 4 cases were in grade E. No looseness or breakage of screw occurred. Bony fusion was achieved in all cases.
CONCLUSIONPosterior approach atlantoaxial pedicle screw internal fixation have the advantages of direct screw placement, short-segment fusion, intraoperative reduction, fixation reliable, high fusion rate, and it can restablish the upper cervical vertebrae stability and help to recover the spinal cord and nerve function.
Adult ; Atlanto-Axial Joint ; diagnostic imaging ; injuries ; physiopathology ; surgery ; Bone Screws ; Female ; Fracture Fixation, Internal ; instrumentation ; Humans ; Joint Dislocations ; diagnostic imaging ; physiopathology ; surgery ; therapy ; Male ; Middle Aged ; Tomography, X-Ray Computed ; Treatment Outcome