1.G3BP: a promising target for cancer therapy.
Acta Pharmaceutica Sinica 2010;45(8):945-51
G3BP (Ras-GTPase-activating protein SH3 domain binding protein), a protein which binds to RasGAP SH3 domain, belongs to RNA-binding protein family, implicating in the downstream of Ras signaling. G3BP harbors the activities of endoribonuclease and DNA helicase, and can induce stress granules formation. G3BP plays a general role in the signal pathways of cell proliferation, differentiation, apoptosis and RNA metabolism. It has been shown to be over-expressed in a number of human malignancies and has a close relationship with tumor invasion and metastasis. Given that it has been implicated in several pathways that are known to be involved in cancer biology, G3BP may provide a new target for cancer therapy.
2.Optimal atropine treatment for severe acute organophosphate poisoning
Chinese Critical Care Medicine 2016;28(10):954-956
Atropine has been an effective drug antagonizing M-like symptoms induced by severe acute organophosphate pesticide poisoning (AOPP), which could relieve bronchospasm, inhibit glandular secretion, and prevent pulmonary edema. In the rescue of severe AOPP, a hypo-dose of atropine is difficult to effectively block the effect of acetylcholine, and overdose plays great risk of atropine poisoning. When the patient's condition improves, the rebound often occurs in the process of withdrawal. Medical workers at home and abroad have conducted a lot of study to explore the personalized judgment of atropinization and optimal treatment of atropine for severe AOPP, including the initial bolus of atropine,the sustained infusion for the treatment of pulmonary edema, the maintenance dose, extenuation and withdrawal of atropine for the prevention of its overdose. Related researches in recent years were reviewed to provide the clinical reference.
3.Preliminary study of Conbercept injected intravitreally for the treatment of wet age-related macular degeneration
International Eye Science 2017;17(8):1554-1557
AIM:To observe the preliminary efficacy of conbercept injected intravitreally for the treatment of wet age-related macular degeneration(wAMD).METHODS:Seventeen wAMD patients (18 eyes) were selected to receive conbercept injection.All patients were given a single conbercept injection every month,3 times.Before and after 1,2,3mo of the injection,the best corrected visual acuity (BCVA),intraocular pressure (IOP,measured by Non-contact tonometer),fundus photography,fundus fluorescein angiography(FFA),indocyanine green angiography(ICG),optical coherence tomography(OCT) examination and the complications incidence were compared.RESULTS:Three months after conbercept injection,the BCVA improved in 15 eyes (83%),stable in 3 eyes (17%).Before treatment,the average central macular thickness was 421.72±54.43μm,at 1 and 2 and 3mo after treatment,the average central macular thickness was 337.89±25.88μm,293.56±26.87μm,266.89±19.10μm respectively.There were significant differences compared with before and after injection(P<0.05).In the final follow up,FFA and ICG showed that the leakage in macular area disappeared in 15 eyes (83%),still existed in 3 eyes (17%),in those 3 eyes the injection was given for one or two times till the leakage disappeared.Elevated intraocular pressure occurred in 2 cases (26mmHg,23mmHg),after 1d down to normal.Another patient showed postoperative envy,given left ofloxacin eye drops after 2d,then back to normal.There was no serious ocular adverse reactions.CONCLUSION:Intravitreal injection conbercept for wAMD can significantly improve the visual function,reduce the macular edema and the leakage with higher safety and less complications.However the prolonged efficacy needs further observation.
5.Gene cloning and characterization of hopX outer membrane protein from Helicobacter pylori
Xiaoli JU ; Shihe SHAO ; Weibin HAO
Chinese Journal of Immunology 1985;0(02):-
Objective:To clone the outer membrane protein hopX gene of Helicobacter pylori(Hp)and to perform sequencing and analysis of biological information.Methods:Polymerase chain reaction(PCR)was used to amplify the hopX gene from Hp chromosomal DNA.Then the target gene was digested by restricted endonuclease enzyme of BamH I,and inserted into the prokaryotic expression vector pQE30 digested by corresponding restricted endonuclease enzyme.The recombinant vector was used to select and transform for nucleotide sequence analysis.The biological property at the amino acid level was analyzed by Omiga 2.0 and Antheprot v 5.0.The transformant colony was induced with IPTG and the fusion protein was analyzed by SDS-PAGE and Western blot.Results:The recombinant plasmid was constructed.DNA sequence analysis showed the sequence of hopX was 1 284 bp.The homology of the strains in nucleotide acid was 96%~97%.Their homogeneity in the amino acids was 97%~99%.We get a GeneBank accession number EF208122.Omiga 2.0 software predicted its relative molecular mass(Mr.)was 47 kD and possessed good antigencity.The expressed product contained about 37% of total somatic proteins and Western blot method showed good antigenicity of the recombinant protein.Conclusion:A confirmed gene hopX has been obtained,providing a good foundation for recombination,expression and related study.The corresponding peptide of the gene performed the structural characteristics of some typical antigen molecules,which suggest that it might be a novel vaccine candidate.
6.Evaluation of triphasic contrast enhanced spiral CT for diagnosing hepatocellular adenoma (report of 5 cases)
Guangrui SHAO ; Cheng LIU ; Hao SHI
Chinese Journal of Radiology 2001;0(03):-
Objective To evaluate the diagnostic and differential value of triphasic, especially the arterial phase, contrast enhanced CT scans for the hepatocellular adenoma, and to improve CT diagnostic accuracy. Methods Spiral CT scanning of pre and post contrast arterial phase, portal venous phase and delayed phase was performed in 5 patients with hepatocellular adenomas proved surgically and pathologically. The enhancement was administrated with venous injection of 3 ml/sec, totally 100 ml angiografin. Arterial phase of contrast enhanced scanning started 20~30 sec, portal venous phase 60~70 sec and delay scanning 3 min after the injection of contrast medium. The degrees of the enhancement of adnoma and normal tissues of liver in the three contrast enhanced phases were calculated and compared statistically. Results In plain CT, the lesions were iso density in 4 cases and slight hypodensity in 1 case, which was hardly distinguished from the normal tissue. In all 5 cases, the lesions showed marked enhancement in the arterial phase compared with normal tissue of liver (38 HU high), and there were markedly statistical difference ( t =18 94, P 0.05). The mean CT value of hepatocellular adenoma in the arterial phase was much higher than that in portal venous and delay phase, there were statistical differences between them ( F =18.39, P
7.Detection of autoantibodies in 60 patients with primary biliary cirrhosis.
Chinese Journal of Practical Internal Medicine 2001;0(05):-
Objective To study the types of autoantibodies in patients with primary biliary cirrhosis.Methods There were 60 patients with primary biliary cirrhosis from January 1995 to December 2004 in People's Hospital. We analyzed those patients' autoantibodies results and clinical data.Results There were 75% patients with anti-mitochondrial antibody(45/60),and antinuclear antibodies were detected in 60%(36/60)PBC patients,with the following hierarchy of specificities:23%(14/60)speckled,20%(12/60)multiple nuclear dots,16%(10/60)nuclear membranous,6%(6/60)anti-centromere,1.6%(1/60)homogeneous,20%(12/60)anti-SSA,10%(6/60)anti-SSB and 1.6%(1/60)anti-RNP. Several patients showed multiple specificities. Comparing PBC patients with or without AMA,no statistically significant difference was found on ages,biochemical and immunological parameters.Conclusion AMA-negative PBC patients share the same clinical features with AMA-passive PBC. Except for AMA,other antibodies may present in PBC patients. Multiple nuclear dots and nuclear member antinuclear antibodies may be helpful for diagnosing PBC patients without AMA.
8.Triglyceride as an optimal index of serum lipids predictor of insulin resistance in normoglycemic subjects.
Zeyuan LU ; Yihao LIN ; Hao SHAO
Chinese Journal of Practical Internal Medicine 2001;0(06):-
Objective To investigate the optimal index of serum lipids to predict insulin resistance(IR) in subjects with normal fasting plasma glucose(FPG).Methods In Nor 2003-11 the 1002 subjects with FPG
9.Application of intra-CE operative exploration of common bile duct via cystic duct
Bo RAN ; Aili TUERGAN ; Yingmei SHAO ; Hao WEN
Chinese Journal of Hepatobiliary Surgery 2010;16(5):356-358
Objective To review our experience in treatment of liver hydatid diease.Methods The data of 819 patients who underwent surgery for hepatic hydatid disease were reviewed retrospectively.Exploration of common bile duct was done in 172 cases.There were men 95 and women 77with a mean age of 31.5±0.5 years.In addition to treatment of the cyst cavity,patients was divided into two groups.The patients in group A received cholangiography and exploration of common bile duct through cystic duct while those in group B underwent cholangiography and common bile duct ex-pioration through T tube.Results The length of hospital stay and cavity-related problems for both groups had no significant difference.Biliary tract-related problems in two groups had significant differ-ence.Conclusion Cholangiography and common bile duct exploration through cystic duct can com-pletely solve the cavity-related problems while avoiding T-tube related problems.
10.Radical and quasi-radical hepatectomy for the treatment of end-stage hepatic alveolar echinococcosis
Yingmei SHAO ; Tiemin JIANG ; Aji TUERGANAILI ; Bo RAN ; Hao WEN
Chinese Journal of Digestive Surgery 2011;10(4):296-298
Objective To compare the efficacy of radical and quasi-radical hepatectomy for the treatment of end-stage hepatic alveolar echinococcosis(HAE)with involvement of major blood vessels and viscera.Methods The clinical data of 41 patients with end-stage HAE who were admitted to the First Affiliated Hospital of Xinjiang Medical University from January 2002 to January 2010.All patients were divided into radical hepatectomy group (13 patients)and quasi-radical hepatectomy group(28 patients)according to whether blood vessels were reconstructed and repaired.The operation time,blood loss,length of hospital stay,recurrence and metastasis of HAE,pleural effusion,ascites,biliary complications and death between the 2 groups were compared.All data were analyzed by using the t test or chi-square test.Results The volume of blood loss,length of hospital stay,number of patients with recurrence and metastasis of HAE,obstructive jaundice and number of dead patients were(326 ±115)ml,(22 ± 18)days,0,0,and 0 in the radical hepatectomy group,and were(24 ± 20)ml,(15 ± 12)days,10,10 and 10 in the quasi-radical hepatectomy group,there were significant differences between the 2 groups(t =13.41,1.47;x2 = 4.36,4.36,4.36,P < 0.05).The operation time,number of patients with pleural effusion and ascites,bile leakage,cholangitis and number of patients died perioperatively were(407 ± 146)minutes,4,0,1 and 1 in the radical hepatectomy group,and(263 ± 93)minutes,2,2,2 and 1 in the quasi-radical hepatectomy group,there were no significant differences between the 2 groups(t = 3.81;x2 = 2.30,0.04,0.34,0.04,P > 0.05).Conclusions Radical hepatectomy should be the first choice when construction of infringed vessels can be achieved.Quasi-radical hepatectomy has lower operation risks for avoiding important vessels injury.