1.Biological effects of recombinant pcDNA3.0-hugl-1 plasmid on colorectal cancer cell line LS174
Shiyong HUANG ; Liqiang HAO ; Ronggui MENG
Academic Journal of Second Military Medical University 1999;0(12):-
Objective:To observe the biological behaviors of colorectal cancer LS174 cells before and after pcDNA3.0-hugl-1 transfection,so as to investigate the association of hugl-1 with colorectal cancer.Methods:The eukaryotic expression vector pcDNA3.0-hugl-1 was constructed and transfected into LS174 cells.RT-PCR and Western blotting methods were used to analyze the expression of hugl-1 mRNA and protein in LS174 cells before and after transfection.Soft agar colony formation assay,wound-healing experiment,adhesion assay and Matrigel invasion assays were used to study the effects of hugl-1 expression on the proliferation,adhesion,movement and invasion in LS174 cells.Results:The recombinant plasmid pcDNA3.0-hugl-1 was successfully constructed.RT-PCR and Western blotting showed that the hugl-1 expression was higher in cells transfected with pcDNA3.0-hugl-1 than in those un-transfected or empty vector-transfected cells (P
2.Clinical value of combined detection of of SCC and CEA in the diagnosis of lung cancer
Junsheng XU ; Meng HUANG ; Hao YANG ; Honghui TAN
International Journal of Laboratory Medicine 2017;38(1):44-45,48
Objective To explore the clinical value of combined detection of SCC and CEA in the diagnosis of lung cancer.Methods 382 cases from January 2015 to April 2016 in the respiratory department of our hospital were selected in this survey.Among which 172 cases with lung cancer,110cases with benign lung diseases and 100 healthy person.The CEA and SCC content in serum of all these cases were determined by chemical chemiluminescence,and the diagnostic efficacy of lung cancer by CEA or SCC alone and CEA and SCC combined examination was compared.Results In lung cancer group,the serum levels of CEA and SCC content were significantly higher than those of the normal control group and lung benign disease group(P<0.05),and benign lung disease group were significantly higher than that of the normal control group(P<0.05).and compared with squamous cell carcinoma and small cell lung cancer,CEA has the highest content in adenocarcinoma(P<0.05).Meanwhile,the content of SCC in squamous cell carcinoma was obviously higher than that of small cell lung cancer and adenocarcinoma(P<0.05),The sensitivity of CEA was significantly higher than that of SCC(P<0.05),and the sensitivity and negative predictive value in combined detection group was significantly higher than that of CEA or SCC(P<0.05).Conclusion SCC and CEA could be used to identify different types of lung cancer,and the combination of the two methods could improve the positive diagnosis rate,facilitate the early detection of lung cancer,early treatment,has the promotion value.
3.Endovascular treatment of chronic total occlusions of the iliac vein
Meng YE ; Xiaozhong HUANG ; Guanhua XUE ; Hao ZHANG ; Yiping ZHAO ; Yaxue SHI ; Jiwei ZHANG
Chinese Journal of General Surgery 2011;26(3):195-198
Objective To present clinical results of endovascular treatment of total iliac vein occlusions and to discuss the technique details of this treatment. Methods From Feb 2006 to Aug 2010,15 patients with chronic total occlusive lesions of the iliac vein and adjacent vein segments underwent endovascular treatment. Average age was (62 ±7) years (range 35 to 81 years), the male/female ratio was 12: 3. Clinical score of CEAP was grade 3 in 33. 3%, grade 4 in 40%, grade 5 in 13. 3%, and grade 6 in 13.3%. Venography showed left iliac vein was occluded in all 15 patients, common femoral vein was occluded in 14 patients, and superior femoral vein was occluded in 9 patients, however profounder femoral vein was patent in these patients with superior femoral vein being occluded. Results No postoperative major morbidity or mortality was seen. The technique success rate was 93. 3%. Treatment failure was caused in one case for a wrong selection of the femoral vein approach site. The average length of stent was 18. 4 cm.In 12(80. 0% ) stents crossed the inguinal ligament. The average follow-up time was 11.6 ± 2. 4 months.The primary patency rates of the stents at 6 months were 92. 9%. 10 (66. 7% ) patients were asympotomatic, 3(20% )were improved, 1 (6. 7% ) was unchanged, and 1 (6.7%) was worse, compared to before intervention. Conclusions Endovscular recanalization and stent placement is a safe and effective treatment for chronic total occluded iliac veins, with good patency, significant symptom resolution, and minimal morbidity in the short term follow-up.
4.Study of Expression of Pneumococcal Surface Protein and Immunogenicity
Qian-Ying CAI ; Liang FANG ; Jin-Zhong HUANG ; Hai-Ying LIN ; Yang-Hao GUO ; Chun MENG ;
China Biotechnology 2006;0(04):-
The specific fragment of Pneumococcal surface protein A(PspA)and Pneumococcal Surface Adhesin A(PsaA)gene was amplified by PCR from Streptococcus pneumonia 5 and Streptococcus pneumonia 19.The amplified fragnent of PspA and PsaA gene was ligated into pET-27b(+)vector and transformed into BL 21 E.coli for expression and obtain the expressive production of PspA and PsaA.Induced by IPTG,the expression level was as high as 75 % of the total disolube protein.The result showed that the recombinant plasmid could express a specific 75 kDa and 37 kDa fusion protein in E.coli BL 21,which showed the good immunogenicity and a broadly cross reactivity with the other serotypes.
5.VX-2 tissue orthotopic implantation versus panc-1 cell suspension orthotopic implantation in establishing a rabbit model of pancreatic cancer
Zixu WANG ; Xin MENG ; Lei ZHOU ; Qu CHEN ; Hongyuan SHEN ; Yu HUANG ; Liguo HAO
Journal of Medical Postgraduates 2017;30(3):302-305
Objective Few reports are seen on the methods of establishing the rabbit model of pancreatic cancer .This study was to compare the effect of Panc-1 cell suspension orthotopic implantation with that of VX-2 tissue orthotopic implantation in construc-ting the rabbit model of pancreatic cancer . Methods Using the random number table method , we divided 30 healthy rabbits into a tissue suspension group ( n=15) and a cell suspension group ( n=15) , VX-2 tissue suspension employed for in-situ implanting in the former group and panc-1 cell suspension utilized in the latter .Then we evaluated the two modeling methods by B-ultrasonography , 3.0T MRI, and CT. Results In the third week after modeling , transpla-ntive metastasis of lots of tumor tissues was observed in the duode-num, colon, appendix, and peritoneal wall in 5 rabbits of the tissue suspension group , but only in the greater omentum of 3 rabbits in the cell suspension group , with high signals of MR T 2 in the posterior gastric body .One case of duodenal metastasis was seen in the cell suspension group , with slightly high signals of MR LAVA in the posterior gastric body .The model of pancreatic cancer was successfully established in all the 15 rabbits of the tissue suspension group , but only in 3 of the cell suspension group .The success rate of tumor im-planting at 3 and 4 weeks was significantly higher in the former ( 46.66%and 100%) than in the latter group ( 6.67%and 20.00%) (P<0.05). Conclusion VX-2 tissue orthotopic implantation is a more feasible and convenient method than Panc -1 cell suspension orthotopic implantation for establishing the rabbit model of pancreatic cancer .
6.Clinical effect analysis in the treatment of acute limb arterial critical ischemia
Guanhua XUE ; Changning HAO ; Lei LYU ; Hui XIE ; Xiangjiang GUO ; Xiaozhong HUANG ; Meng YE ; Lan ZHANG
International Journal of Surgery 2016;43(12):814-817
Objective To discuss the therapeutic effect in the treatment of the acute limb arterial critical ischemia.Methods Collect thirty-nine cases of acute limb arterial critical ischemia in Renji Hospital from Janary 2014 to July 2016.According to the patients' manifestation,these operations were porfermed including thrombectomy,cathetery-directed thrombolysis,mechanical suction bolt,percutaneous angioplasty and stenting.The effect and complications were observed.Results The eighteen patients in 39 cases (46.2%) were dead,including 5 cases without operation,13 operation.The eight cases were amputated during 34 cases of operations.In the 21 out-patients safely,2 cases were not followed up.The time of follow-up was from 3 to 27 months,on average 14.3 months.During the 21 patients,5 cases died from heart cerebrovascular or tumor diseases,3 cases with footdrop,2 cases with toe amputations,3 cases with distal leg and foot anesthesias.Conclusions The patiens with acute limb arteries critical ischemia must be treated as early as,and reinforced the management of multiple organ function,which may improve the diseases' therapeutic effect.
7.Relationship between rapid-eye-movement sleep behavior disorder and synucleinopathies
Honglin HAO ; Xiuqin LIU ; Yan HUANG ; Heyang SUN ; Han WANG ; Zhenxin ZHANG ; Zhizheng ZHANG ; Liying CUI ; Qiong MENG
Chinese Journal of Neurology 2010;43(8):572-576
Objective To investigate the incidence rate, onset time and electrophysiological characteristics of rapid eye movement sleep behavior disorder (RBD) and the relationship between RBD and synucleinopathies as well as the electrophysiological diagnostic criteria of RBD in Parkinson' s disease (PD) and multiple system atrophy (MSA). Methods Sleep survey and night video-polysomnography (NPSG)were used to study sleep disturbance of PD and MSA. (1) Subjective sleep assessments: All subjects,including 66 PD patients, 65 age and sex matched healthy controls and 30 MSA patients, completed the sleep questionnaires, and the RBD incidence rate and onset time were got. (2) Objective sleep assessments: 8 PD patients, 13 MSA patients, and 15 age and sex matched healthy controls underwent video-NPSG recording on two consecutive nights. Sleep architect were analyzed. The NPSG characteristics of RBD accompany with PD and MSA were analyzed, and the electrophysiological diagnostic varameters of it were determined. Results Patients with PD or MSA had a higher prevalence of RBD. RBD was found in 59. 1% (39/66) PD patients and 86. 6% (26/30) MSA patients, among those, 46. 2% ( 18/39 ) and 84.6% (22/26) had the waking symptoms of MSA and PD. The main NPSG characteristics of RBD of PD or MSA were chin REM without atonia (RWA) and increased movement. Conclusions The relatively higher RBD prevalence in MSA and PD patients indicates that RBD has close relationship with PD and MSA.Part of patients with RBD preceding neurology disease indicates that RBD may be the early marker of PD and MSA. The main NPSG characteristics of RBD accompany with PD and MSA are chin RWA and the motor manifestations. RWA and phasic EMG activity density are supposed to be the NPSG diagnostic parameters.
8.Regulative mechanisms of oxidative stress in kidney in diabetic nephropathy and interventional effects of Chinese herbal medicine.
Zhi-Min MAO ; Yan-Ru HUANG ; Yi-Gang WAN ; Hao-Li CHEN ; Xi-Miao SHI ; Xian-Jie MENG ; Jian YAO
China Journal of Chinese Materia Medica 2014;39(19):3707-3712
In the development of diabetic nephropathy (DN), reactive oxygen specie (ROS) over much in vivo leads to oxidative stress(OS)-related renal injuries, which are characterized by the structural and functional changes in glomerular and renal tubular cells in morphology. The regulative approaches of OS involve the several signaling pathways, in which, both p38 mitogen-activated protein kinase (MAPK) signaling pathway and adenosine monophosphate-activated protein kinase (AMPK) signaling pathway play the important roles as the target of anti-oxidants. The interventional actions of Chinese herbal compound prescriptions and the extracts of single Chinese herbal medicine (CHM) on OS in the kidney in DN include regulating the balance between ROS and antioxidants, reducing the production of AGEs, inhibiting the expression of growth factors and intervening the activity of signaling pathways.
Animals
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Diabetic Nephropathies
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drug therapy
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metabolism
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Drugs, Chinese Herbal
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administration & dosage
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Humans
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Kidney
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drug effects
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metabolism
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Oxidative Stress
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drug effects
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Signal Transduction
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drug effects
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Treatment Outcome
9.Curative effects of sitagliptin combined with metformin on type 2 diabetic patients complicated with nonalcoholic fatty liver disease
Qiong MENG ; Hao HUANG ; Xiao-Dong FU
Chinese Journal of Clinical Medicine 2017;24(6):939-942
Objective:To compare the curative effects of sitagliptin and glipizide on patients of type 2 diabetes mellitus complicated with nonalcoholic fatty liver disease,and to analyze their effects on blood glucose and liver function.Methods:A total of 112 patients of type 2 diabetes mellitus complicated with nonalcoholic fatty liver in the Third Rehabilitation Hospital in Shanghai from June 2015 to April 2017 were randomized into sitagliptin group (n=56) treated with metformin combined with sitagliptin and glipizide group (n=56) treated with metformin combined with glipizide.The efficacy on fatty liver was compared between two groups,the blood glucose,liver function,blood lipid and insulin resistance index (HOMA-IR) were compared between two groups before and after treatment.Results:The total effective rate was 94.6% (53/56) in sitagliptin group,significantly higher than that in glipizide group (75.0%,42/56,P<0.05).The blood glucose and blood lipid were significantly improved after treatment in both group,with no significantly difference between two groups.The liver function indexes (AST,ALT,GGT) and HOMA-IR were all significantly improved after treatment in both groups,being significantly better in sitagliptin group compared with those in glipizide group (P<0.05).The overall adverse reaction rate was 19.6% (11/56) in sitagliptin group and 17.9% (10/56) in glipizide group,with no statistical difference.Conclusions:Sitagliptin combined with metformin can improve the therapeutic effect on fatty liver in patients of type 2 diabetes complicated with nonalcoholic fatty liver.Compared with glipizide,sitagliptin can more effectively improve the liver function and HOMA-IR,worthy to be popularized.
10.Development of multiple primer, HIV mini-pool NAT and its application in detecting acute infection of MSM
Yasong WU ; Zhiying LIU ; Yanmei JIAO ; Feili WEI ; Meng XU ; Tong ZHANG ; Xiaojie HUANG ; Fujie ZHANG ; Dexi CHEN ; Xiaoning XU ; Hao WU
Chinese Journal of Laboratory Medicine 2010;33(9):862-866
Objective To establish a mini-pool nucleic acid testing (NAT) assay using multiplex RT-nested PCR for the detection of HIV RNA, and apply it in screening for acute HIV infection among MSM. Methods Frozen EDTA plasma samples collected between Oct. 2008 and Mar. 2009 from 3 HIV infectors during window-period, a total of 30 HIV chronically infected individuals and 97 healthy subjects were used to develop the NAT assay. Plasma samples from 10 cases were pooled into one tube and centrifuged at high speed for the collection of viruses. HIV RNA was extracted. Two pairs of primers were designed according to two conserved regions of HIV RNA ( HXB2 nt 5783-nt 6228 and nt 1235-nt 2012).Multiplex RT-PCR and nested PCR were performed. Individual NAT-reactive samples were confirmed by commercially available NAT assays. The sensitivity and performance efficacy were also evaluated. The assay was then applied to 1 005 plasma specimens from MSM with negative or uncertain HIV antibody test results.These were collected in the same period as the other samples. Results ( 1 ) Two fragments of HIV were amplified successfully with the low detection limit of 162 copies/ml plasma; (2) Results of the mini-pool HIV NAT validation with samples from 3 HIV infectors during window-period were consistent with the expected values; (3) All 30 plasma samples from MSM with positive HIV antibody, which were tested by multiplex RT nested PCR, were found to be HIV RNA positive; (4) One out of 1 005 plasma samples was found to be HIV RNA positive, for this case acute infection was followed-up and sero-conversion was found. Conclusion Mini-pool NAT has good sensitivity, and may be applied to screening HIV RNA among MSM during window-period.