1.Expression of miR-106 a in fresh and paraffin-embedded tissues and in precancerous lesions of gastric cancer
Chinese Journal of Clinical and Experimental Pathology 2015;(6):611-614
Purpose To investigate the comparison of miR-106a in fresh and paraffin-embedded tissues and its expression in precan-cerous 1esions of gastric cancer. Methods Human gastric cancer tissues inc1uding 30 coup1es of fresh and 40 coup1es of paraffin-em-bedded samp1es were co11ected,quantitative rea1-time PCR was used to detect the expression of miR-106a in these two samp1es. Anoth-er paraffin-embedded samp1es inc1uding 20 cases of precancerous 1esions and 40 cases of gastric adenocarcinoma were a1so co11ected,in situ hybridization was used to assess the expression of miR-106a in these stages. Results The re1ative expression of miR-106a in fresh tissues was 3. 25 ± 1. 99,in paraffin-embedded tissues was 3. 18 ± 2. 14,indicating that the expression of miR-106a in these two sam-p1es has no statistica1 difference(P>0. 05),corre1ation ana1ysis showed that there was a significant corre1ation of miR-106a expression in these two samp1es(rs =0. 998,P<0. 001). The expression of miR-106a was detected in the stage of precancerous 1esions with the positive rate was 70%. The positive signa1s were 1ocated in dysp1astic epithe1ia1 ce11s and appeared as dark b1ue fine granu1es. The positive rate of miR-106a in gastric cancer tissues was 87. 5% and the frequency and extent increased and enhanced compared with pre-cancerous 1esions. Conclusion miR-106a has significant corre1ation in gastric cancer fresh tissues and paraffin-embedded tissues. Detection of miR-106a with paraffin tissues and its ear1y changes in prema1ignant 1esions can provide va1uab1e information for the ear1y diagnosis of gastric cancer.
2.Relationship Between Arterial Stiffness and Variability of Blood Pressure in Senile Patients With Hypertension
Meng QIU ; Yun ZHU ; Fuchun ZHANG
Chinese Circulation Journal 2015;(2):136-139
Objective: To investigate the relationship between arterial stiffness and variability of blood pressure (BPV) in senile patients with hypertension.
Methods: A total of 234 senile patients with hypertension were enrolled. The patients were examined by 24h ambulatory blood pressure monitoring (ABPM), BPV was identified by the standard deviation (SD) of blood pressure value. Based on increased percentage of baPWV, the patients were divided into 4 groups: Normal artery group, n=44, Mild arterial stiff group, n=72, Moderate arterial stiff group, n=78 and Severe arterial stiff group, n=40. The 24h ABPM results, BPV, biochemical indexes and their relationship to baPWV were compared among different groups.
Results:①The HDL-C level and 24hDBP, dDBP, 24hSBPSD, 24hDBPSD, dSBPSD, dDBPSD, nDBPSD were significantly different among each group, all P<0.05.②The increased percentage of baPWV was positively related to the age and 24hSBPSD, 24hDBPSD, dSBPSD, dDBPSD, nDBPSD, while negatively related to HDL-C level, all P<0.05.③The age and 24hSBPSD, 24hDBPSD, dSBPSD were the independent risk factors for baPWV elevation.
Conclusion: The arterial stiffness was closely related to BPV in senile patients with hypertension.
3.Interventional therapy and its efficacy for lower extremity arteriosclerosis occlusive disease of 36 cases
Renda ZHU ; Xiaoqiang LI ; Qingyou MENG ; Liwei ZHU ; Yeqing ZHANG
Clinical Medicine of China 2010;26(1):90-92
Objective To explore the clinical application of pereutaneous transluminal angioplasty(PTA) and endovascular bracket to treat lower extremity arteriosclorotic occlusion.Methods The clinical data of 36 patients(41 affected limbs)with lower extremity atherosclerotic occlusion who were treated with PTA and bracket implantation from Jan 2008 to Dee 2008 were summarized.Results The initial successful rate of PTA wag 95.1% (39/41).The clinical symptoms were considerably improved in 37 affected limbs,representing of pain disappearing,skin temperature increasing and the healing of refractory ulcer.The index of ankle to brachial significantly increased from 0.54±0.11 to 0.79±0.15(before v.s.after therapy).However,no improvement was observed in 3 affected limbs,and one affected limb Wag re-operated by the amputation.In the following 3 to 15 months.three superficial femorsI arteries were re-obstructed at the 5th,6th,12th month,respectively.One arteria tibialis pesterior was re-obstructed at the 8th month.The cumulative cure rate was 89.7%(35/39).Conclusions PTA is effective in treating atherosclerotic occlusive diseases.The endovascular bracket can increase the cumulative cure rate.PTA and endovascular bracket are safe and effective in treating lower extremity arteriosclerotie occlusion.
4.Co-appearance analysis of papers on medical informatics
Fengqing QI ; Meng ZHANG ; Panpan HU ; Yu ZHANG ; Qian ZHU
Chinese Journal of Medical Library and Information Science 2015;(2):34-37
The current situation of medical information was analyzed by displaying the co-appearance of countries and time, top 5 journals and co-appearance of subject headings in papers on medical information published in 1995-2014 with the papers on medical informatics covered in ISI Web of Science Database as an sample , in order to promote the study and provide reference for the related persons and institutions .
5.Asynchronous primary cancers in breast and extraperitoneum.
Hao-hao ZHU ; Min-feng ZHANG ; Jia-rong MENG
Chinese Journal of Pathology 2006;35(11):700-700
Antigens, CD
;
metabolism
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Antigens, Differentiation, Myelomonocytic
;
metabolism
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Breast Neoplasms
;
metabolism
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pathology
;
surgery
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Carcinoma, Lobular
;
metabolism
;
pathology
;
surgery
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Female
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Histiocytoma, Malignant Fibrous
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metabolism
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pathology
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surgery
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Humans
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Immunohistochemistry
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Middle Aged
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Receptors, Progesterone
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metabolism
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Retroperitoneal Neoplasms
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metabolism
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pathology
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surgery
6.Evaluation on Standard of TCM Literature Metadata
Ling ZHU ; Tong YU ; Zhulyu ZHANG ; Meng CUI
World Science and Technology-Modernization of Traditional Chinese Medicine 2015;17(4):763-767
All elements and refinements had been built in ontology with protégé 4.1, which can be used to record over 20 classic Chinese medicine books in related author, publisher, storage site, edition, form and arrangement of lines in calligraphy, and etc. It also realized the graphical display based on ontology. It gave brief analysis on elements which had been used or without using. Studies showed that Web Ontology Language (OWL) can express all elements of TCM literatures clearly. This study indicated that element refinements should be considered to add in the amendment of ISO International Standards application for further improvement.
7.Advance in cross species transmission of avian influenza virus H6N1 subtype
Zenghui SUN ; Yinchuan ZHU ; Xijing WANG ; Yuanyan MENG ; Zengfeng ZHANG
Chinese Journal of Zoonoses 2017;33(3):236-240
Avian influenza virus H6N1 subtype has been circulating in aquatic bird and terrestrial bird,and is the most frequently detected subtype of influenza A virus in those hosts.Genetic analysis results suggested that this virus might be the progenitor of the highly pathogenic avian influenza H5N1 virus,as seven of eight gene segments of those viruses had a common source.As continuing evolution of H6N1,it could spread across species barriers to mammals and had strong infection ability in mice,swine and ferrets.Serological epidemiological survey showed that a few people were positive for H6 avian influenza virus antibody and then the world's first human infection with influenza virus H6N1 subtype was reported in May 2013.Therefore,with the expansion of the host range of the virus,gene mutation and gene reassortment of H6N1 virus can occur in these hosts,and then it may evolve into novel variant strain with infected human potential.
8.Simvastatin improves cardiac function in acute phase after myocardial infarction through Akt/eNOS pathway
Qiaoyan ZHU ; Guangyu WANG ; Yaguang BI ; Qingyong ZHANG ; Meng WEI
Chinese Pharmacological Bulletin 2015;(10):1375-1378,1379
Aim To investigate the effect of simvastatin ( Sim ) on endogenous antioxidant system after acute myocardial infarction ( AMI ) and its potential mecha-nisms. Methods The acute myocardial infarction ( AMI ) rat models were made by ligation left anterior descending of coronary artery. Then the successful models were randomly divided into myocardial infarc-tion group ( MI group) and simvastatin group ( Sim,20 mg·kg-1·d-1), another group without ligation left anterior descending of coronary artery served as sham group(Sham group). The Sim group was administered simvastatin by gavage for 7 days. MI group and Sham group received saline. Hemodynamic parameters, lipid levels, troponinI ( c-TnI ) and lactate dehydrogenase ( LDH) concentrations were examined after 7days, and the levels of superoxide dismutase ( SOD) and glutathi-one peroxidase ( GP) of myocardial antioxidant system were detected by ELISA. The expression of cardiac p-Akt and p-eNOS protein were detected by Western blot. Results Acute myocardial infarction significant-ly lowered cardiac hemodynamic parameters, increased serum c-TnI and LDH levels, lowered levels of SOD and GP, and lowered the expression of p-Akt and p-eNOS protein. However, Sim could effectively prevent the deterioration of cardiac function, reduce serum c-TnI and LDH levels, increase levels of SOD and GP, and increase p-Akt and p-eNOS protein expression. Conclusion Early using Sim can effectively improve heart function after acute myocardial infarction, acti-vate myocardial antioxidant system,and reduce myocar-dial necrosis, which may be related to increasing the expression of p-Akt and p-eNOS.
9.Separation, Identification and Inhibitory Effect on HepG2 Cells of Flavonoids from Humulus Scandens
Zaixing CHEN ; Yan ZHU ; Xing WANG ; Meixia ZHANG ; Fanhao MENG
China Pharmacist 2016;19(2):267-269,270
Objective:To extract, separate and identify the flavonoids in Humulus Scandens and detect their cytotoxic effect on cells HepG2. Methods: After Humulus scandens bing was extracted by alcohol, luteolin-7-O-β-D-glucoside ( LGL) and cosmoiin ( AGL) were obtained by using column chromatography and identified by spectral analysis. The inhibitory effects of LGL and AGL on HepG2 cells were detected by a typan blue dye method. Results:The main flavonoids in Humulus Scandens were LGL and AGL. When the concentration of LGL and AGL was increased from 6. 25 μmol·L-1 to 100. 0 μmol·L-1 , the inhibition rate of LGL was increased from 28. 8% to 95. 2% and that of AGL was increased from 3. 6% to 21. 3%. Conclusion: LGL has notable inhibitory effect on HepG2 cells in a dose-dependent manner, while the inhibitory effect of AGL is not obvious.
10.Correlation of apolipoprotein H exon-8 polymorphism with coronary atherosclerotic heart disease and lipometabolism
Guofang CUI ; Dianwen ZHANG ; Dalin SONG ; Zhu MENG
Chinese Journal of Tissue Engineering Research 2006;10(44):204-206
BACKGROUND: Human apolipoprotein H which characterizes by polymorphism is related to metabolism of triacylglycerol (TG) and function of platelet; therefore, it is suspected that it is possibly related to coronary atherosclerotic heart disease (CAHD).OBJECTIVE: To investigate the correlation among apolipoprotein H(ApoH) exon-8 polymorphism with CAHD and its effect on lipometabolism.DESIGN: Case-controlled observation.SETTING: Department of Cardiology, Haici Medical Group, Qingdao,Shangdong. PARTICIPANTS: 110 CAHD patients selected from Qingdao Haici Medical Group were regarded as CAHD group, and other 100 healthy subjects were regarded as control group.METHODS: 2 mL blood was collected from peripheral vein of all cases. Polymerase chain reaction and technique of restriction fragment length polymorphism were used to determine the genotype of ApoH exon-8; meanwhile, lipids were measured with oxidase technique.MAIN OUTCOME MEASURES: ① polymorphism of ApoH exon-8 genotype; ② gene frequency of ApoH exon-8 (Try316Ser); ③ comparisons of lipid level of cases with various genetypes.RESULTS: All 210 cases were involved in the final analysis. ① G1025C (Try316Ser) existed in ApoH exon-8, including types of GG and GC, butnot CC type. ② The frequency of GC in the CAHD group was 25.5%, and the frequency of C allele was 0.13; they were significantly higher than those in control group (10%, 0.05, P <0.05). ③ TG level in genotype GC of CAHD group was significantly higher than that both in GG genotype and in any genotype of control group [(1.38±0.24), (1.16±0.10),(1.09±0.78), (1.12±0.76) mmol/L, P < 0.05]. Level of low-density lipoprotein cholesterol (C-LDL) was higher in CAHD group than that in control group (P<0.05).CONCLUSION: The polymorphism of ApoH exon-8 is closely related to CAHD and TG level.