1.Effect of Acupuncture at Point Neiguan on Myocardial Ultramicrostructure in Myocardial Hypertrophy Mice
Miao ZHANG ; Wenjun WANG ; Pengyu ZHU ; Ying GUO ; Shulin LI
Shanghai Journal of Acupuncture and Moxibustion 2016;35(5):588-591
Objective To investigate the effect of acupuncture at point Neiguan on mouse myocardial hypertrophy.Methods Thirty-sixty healthy C57BL6 mice were randomized into blank, model and treatment groups, 12 rats each. In the treatment group, an acupuncture needle was inserted into point Neiguan and retained for 15 min, once daily. After nine days of treatment, the ratios of cardiac weight/tibial length were compared between the groups. Left ventricular myocardial tissues were processed by Masson trichrome staining in every group of mice. The differences in myocardial fiber arrangement and collagen fiber distribution between the groups were observed under the ordinary optical microscope in 100 times of field of vision. Sarcomere structure, myofibril arrangement, collagen fibers and mitochondria in injured myocardial tissues were observed by transmission electron microscopy. Results Heart rate increased significantly in the model group and decreased significantly in the acupuncture group compared with the blank group. Cardiac weight and the ratios of cardiac weight/tibial length increased significantly in the model and acupuncture groups compared with the blank group (P<0.01) and decreased significantly in the acupuncture group compared with the model group (P<0.01). In the model group, myocardial tissues had compensatory hypertrophy with incontinuous status, and myocardial transverse striations had severe disorder/disruption, karyopyknosis appeared and cytoplasmic eosinophilic change became obvious in few of the rats. The results were better in the acupuncture group than in the model group. In the model group, part of myofibrils had focal fusion, interstitial collagen fibers proliferated and mitochondria had swelling and compensatory increase. The results were also better in the acupuncture group than in the model group.Conclusions Acupuncture at point Neiguan can reduce the production of collagen fibers and mitochondria, improve the arrangement of sarcomere structure and delay the progression of myocardial hypertrophy.
2.Feasibility of Transradial Percutaneous Coronary Intervention in Coronary Artery Disease Patients Elder Than 80 Years of Age
Dan ZHU ; Caiyan GUO ; Sisi MIAO ; Xiaoliang CHEN
Chinese Circulation Journal 2016;31(10):966-969
Objective: To review the feasibility of transradial percutaneous coronary intervention (PCI) in coronary artery disease (CAD) patients elder than 80 years of age. Methods: A total of 661 CAD patients elder than 60 years with PCI in our hospital from 2013-12 to 2015-12 were enrolled and divided into 2 groups: Observation group, the patients with the mean age of (83.2±3.8, 80-92) years,n=76 and Control group, the patients with the mean age of (68.3±5.2, 60-79) years,n=585. Clinical features, coronary lesions, radial puncture failure rate, PCI success rate and intra-, post-operative complications were retrospectively analyzed and compared between 2 groups. Results: In Control group and Observation group, the patients from failed radial artery puncture changing to brachial artery puncture were 1.0% and 2.6%, from failed radial artery puncture changing to femoral artery puncture were 1.5% and 2.6% respectively; PCI success rates were 96.5% and 96.4%, operational times were (45.7±21.2) min and (47.6±18.5) min, the contrast agent used in coronary angiography (CAG) were (28.9±10.2) ml and (30.6±8.8) ml and in CAG+PCI were (150.4±35.7) ml and (155.6±28.2) ml, intra-operative cardiac events were 0.7% and 1.3%, post-operative vascular complications were 0.9% and 2.6%, post-operative hospital stay times were (5.7±1.9) days and (6.3±2.7) days respectively; the above differences had no statistic meaning. Conclusion: Transradial PCI is safe and feasible in elder CAD patients.
3.Value of serum amyloid A in patients with acute asthma attack
Yanhua LV ; Xiaoling YUAN ; Zhuofeng MIAO ; Weihong GUO ; Laiyu LIU ; Shunfang ZHU ; Shaoxi CAI ; Fei ZOU
The Journal of Practical Medicine 2016;32(11):1771-1773
Objective To assess the value of serum amyloid A (SAA) in patients with acute asthma attack. Methods Sixty-four asthmatic patients in acute phase and 20 healthy individuals were included. The asthmatic patients were divided into bacterial infection-induced group and non-bacterial infection-induced group. Lung function test and chest X-rays test were conducted And inflammatory cell counts , serum SAA and CRP levels were measured. SAA were compared among subgroups of asthmatic patients and healthy controls and the diagnostic value of SAA to distinguish bacterial infection-induced asthma was estimated. Results SAA of both asthma subgroups were significantly higher when compared with the healthy individuals, and it was higher in bacterial infection-induced group than that in non-bacterial infection-induced group. In terms of ROC curve , AUC was 0.966 for SAA to distinguish merging bacterium infection, and the cut-off value was 36.67mg/L with sensitivity of 92.3% and specificity of 88.2%. Conclusions SAA increases in patients during acute asthma attack, and particularlymore obviously in bacterial infection-induced patients. It may be used as a reliable biomarker to distinguish merging bacterium infection during acute asthma attack.
4.Research progress on irreversible tyrosine kinase inhibitors
Jianjun GUO ; Jing ZHU ; Yongyue ZHAO ; Tengfei QUAN ; Zhenyu MIAO ; Haizhi BU
Chinese Pharmacological Bulletin 2015;(6):749-754
Dysfunction in tyrosine kinase activity disrupts the nor-mal control of cellular phosphorylation signaling pathways,which plays a vital role in genesis and development of various tumors, and makes tyrosine kinases a class of targets of many anti-tumor drugs. Currently most approved tyrosine kinase inhibitors ( TKIs) are based on irreversible binding mechanisms, making them poorly selective, not potent or sustained enough regarding pharmacological effects and prone to triggering resistance. In the past decade, much progress has been made in the development of
a new class of TKIs which irreversibly inhibit their target proteins via the formation of covalent bonds, overcoming the drawbacks of irreversible TKIs. Several irreversible TKIs have entered markets or clinical research phases. This review is to summarize the structural, pharmacological and medicinal chemical properties of investigational and marketed irreversible TKIs as well as their re-cent developments.
5.Effects of flower bud removal and artificial pollination on growth and yield of Tulipa edulis.
Yuan-Yuan MIAO ; Zai-Biao ZHU ; Qiao-Sheng GUO ; Hong-Liang MA ; Ying YANG ; Li-Fang ZHU
China Journal of Chinese Materia Medica 2014;39(11):2016-2018
The study was conducted to explore the response of growth and yield of Tulipa edulis to flower bud removal and artificial pollination. And flower bud removal and artificial pollination were carried out in the squaring period and bloom stage respectively. The morphological index and biomass indicators were determined and the yield was counted in harvest time. Result showed that flower bud removal was beneficial to the growth of T. edulis, resulting in increasing growth index, biomass as well as the yield of bulb. The diameter and dry weight of T. edulis fruit by artificial pollination were increased significantly compared with the control. Seed setting percentage increased to 100%, and the number of seed as well as the single grain weight increased by 69.03% and 16.48%, respectively, which did not significantly affect the bulb production. In conclusion, Flower bud removal treatment accelerates bulb biomass increase, so as to improve its yield. Artificial pollination raised significantly seed setting percentage, seed number as well as the single grain weight.
Biomass
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Botany
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methods
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Flowers
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growth & development
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physiology
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Pollen
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growth & development
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physiology
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Pollination
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Tulipa
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growth & development
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physiology
6.Effects of different drying methods on processing performance and quality in bulbus of Tulipa edulis.
Xiao-hua YANG ; Qiao-sheng GUO ; Zai-biao ZHU ; Jun CHEN ; Yuan-yuan MIAO ; Ying YANG ; Yuan SUN
China Journal of Chinese Materia Medica 2015;40(20):3974-3980
Effects of different drying methods including sun drying, steamed, boiled, constant temperature drying (at 40, 50, 60 °C) on appearance, hardness, rehydration ratio, dry rate, moisture, total ash, extractive and polysaccharides contents were studied to provide the basis of standard processing method for Tulipa edulis bulbus. The results showed that the treatments of sun drying and 40 °C drying showed higher rehydration ratios, but lower dry rate, higher hardness, worse color, longer time and obvious distortion and shrinkage in comparison with other drying methods. The treatments of 60 °C constant temperature drying resulted in shorter drying time, lower water and higher polysaccharides content. Drying time is shorter and appearance quality is better in the treatment of steaming and boiling compared with other treatments, but the content of extractive and polysaccharides decreased significantly. The treatments of 50 °C constant temperature drying led to similar appearance quality of bulb to commercial bulb, and it resulted in lowest hardness and highest dry rate as well as higher rehydration ratio, extractive and polysaccharides content, moderate moisture and total ash contents among these treatments. Based on the results obtained, 50 °C constant temperature drying is the better way for the processing of T. edulis bulbus.
Color
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Desiccation
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methods
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Plant Stems
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chemistry
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Polysaccharides
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analysis
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Quality Control
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Tulipa
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chemistry
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Water
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analysis
7.Effects of low temperature on dormancy breaking and growth after planting in bulbs of Tulipa edulis.
Ying YANG ; Zai-Biao ZHU ; Qiao-Sheng GUO ; Yuan-Yuan MIAO ; Hong-Liang MA ; Xiao-Hua YANG
China Journal of Chinese Materia Medica 2015;40(1):48-52
The effect of low temperature storage on dormancy breaking, sprouting and growth after planting of Tulipa edulis was studied. The results showed that starch content and activity of amylases significantly decreased during 10 weeks of cold storage, soluble protein content raised at first then decreased, and the peak appeared at the 6th week. However, total soluble sugar content which in- creased slowly at first than rose sharply and reducing sugar content increased during the storage duration. The bulbs with cold storage treatment rooted in the 6th week, which was about 2 weeks earlier than room temperature storage, but there were less new roots in the late period of storage. After stored at a low temperature, bud lengths were longer than that with room temperature treatment. Cold storage treatment could promote earlier emergence, shorten germination time, prolong growth period and improve the yield of bulb, but rarely affect the emergence rate. It was not beneficial to flowering and fruiting. The results indicated that 6-8 weeks of cold storage was deemed to be the key period of dormancy breaking preliminary.
Cold Temperature
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Plant Dormancy
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Plant Roots
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chemistry
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growth & development
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physiology
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Tulipa
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chemistry
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growth & development
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physiology
8.Mitochondrial ND5 as the causative gene of Leight syndrome.
Kang WANG ; Chuan-zhu YAN ; Guo-xiang WANG ; Jing-song JIAO ; Miao JIN
Chinese Journal of Medical Genetics 2010;27(6):616-619
OBJECTIVETo report a Chinese Han family with two patients of Leigh syndrome (LS) and to scan the mutation in mitochondrial DNA(mtDNA).
METHODSThe clinical features and the laboratory findings were summarized. Mitochondrial DNA chip and direct sequencing were performed to detect the mutation in entire mtDNA.
RESULTSFailure of thrive, psychomotor retardation, hypotonia and weakness, cerebellar ataxia, and seizure were the main manifestations of the family. Brain magnetic resonance imaging (MRI) showed lesions at midbrain, periaqueductal gray matter, dentate nuclei of cerebellar and thalami. The levels of lactic acid and pyruvate were mildly abnormal. The mutation of ND5*13513 G to A was identified in the LS family.
CONCLUSIONPatients with ND5*13513 G to A mutation may have a characteristic clinical course and ND5 *13513 G to A might be a preferential candidate mutation of Leigh syndrome.
Base Sequence ; Child, Preschool ; DNA, Mitochondrial ; genetics ; Electron Transport Complex I ; genetics ; Female ; Humans ; Infant ; Leigh Disease ; diagnostic imaging ; genetics ; pathology ; physiopathology ; Magnetic Resonance Imaging ; Male ; Mitochondrial Proteins ; genetics ; Polymorphism, Single Nucleotide ; genetics ; Tomography, X-Ray Computed
9.Expression of annexin A1 (ANXA1) and A2 (ANXA2) and its significance in benign and malignant lesions of gallbladder.
Le-ping YANG ; Zhu-lin YANG ; Xing-guo TAN ; Xiong-ying MIAO
Chinese Journal of Oncology 2010;32(8):595-599
OBJECTIVETo study the expression levels of ANXA1 and ANXA2 and elucidate their clinicopathological significance in adenocarcinoma, peritumoral tissues, adenomatous polyp and chronic cholecystitis of gallbladder.
METHODSEnVision(TM) immunohistochemical staining was used to detect the expression of ANXA1 and ANXA2 in paraffin-embedded tissue sections from resected specimens of adenocarcinoma (n = 108), peritumoral tissue (n = 46), adenomatous polyp (n = 15) and chronic cholecystitis (n = 35).
RESULTSThe positive rates and scores of ANXA1 and ANXA2 were significantly higher in adenocarcinoma (59.3%, 56.5%; 3.2 ± 0.9, 3.4 ± 0.8) than those in peritumoral tissues (34.8%, 1.1 ± 0.8, P < 0.01; 30.4%, 1.0 ± 0.8, P < 0.01), adenomatous polyp (26.7%, 0.9 ± 0.7, P < 0.05 or P < 0.01; 26.7%, 0.9 ± 0.8, P < 0.05 or P < 0.01) and chronic cholecystitis (17.1%, 0.7 ± 0.9, P < 0.01; 20.0%, 0.8 ± 0.8, P < 0.01). The benign lesions with positive ANXA1 and/or ANXA2 expression showed mild to severe atypical hyperplasia of the gallbladder epithelium. The positive rates of ANXA1 and/or ANXA2 were significantly lower in the well-differentiated adenocarcinoma, in a maximal diameter of < 2 cm, with no metastasis to lymph nodes and no invasion to surrounding tissues than those in the moderately or poorly-differentiated adenocarcinoma, in a maximal diameter of ≥ 2 cm, with metastasis to lymph nodes and invasion in surrounding tissues (P < 0.05 or P < 0.01). A high consistence was found between the expression levels of ANXA1 and ANXA2 (χ(2) = 67.84, P < 0.01), and a close positive correlation between the scores of ANXA1 and ANXA2 (r = 0.78, P < 0.01) in gallbladder adenocarcinoma. Kaplan-Meier analysis and multivariate Cox regression analysis showed that ANXA1 or ANXA2 was not an independent prognostic predictor in gallbladder adenocarcinoma.
CONCLUSIONThe expression levels of ANXA1 and/or ANXA2 may be important biological markers in the carcinogenesis, progression and biological behaviors of gallbladder adenocarcinoma.
Adenocarcinoma ; metabolism ; pathology ; surgery ; Adenocarcinoma, Mucinous ; metabolism ; pathology ; surgery ; Adenomatous Polyps ; metabolism ; pathology ; Adult ; Aged ; Annexin A1 ; metabolism ; Annexin A2 ; metabolism ; Cholecystectomy ; methods ; Cholecystitis ; metabolism ; pathology ; Female ; Gallbladder ; metabolism ; pathology ; Gallbladder Neoplasms ; metabolism ; pathology ; surgery ; Humans ; Lymphatic Metastasis ; Male ; Middle Aged ; Neoplasm Invasiveness ; Proportional Hazards Models ; Survival Rate
10.Study on HPLC fingerprint of Xuelian injection.
Ai-dong MIAO ; Dian-jia SUN ; Yan PENG ; Guo-qiang ZHU ; Ben-fu WANG ; Hui HU
China Journal of Chinese Materia Medica 2004;29(11):1044-1046
OBJECTIVETo establish the HPLC fingerprint of Xuelian injection.
METHODHPLC with Diamonsil C18 (4.6 mm x 250 mm, 5 microm) column was used, the methanol-1% acetic acid as a mobile phase and detection wavelength at 270 nm.
RESULTIndicating 11 peaks on HPLC fingerprint.
CONCLUSIONThis method is simple and acurate with a good reproducibility and can be used as a quality control method for Xuelian injection.
Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; isolation & purification ; Injections ; Plants, Medicinal ; chemistry ; Quality Control ; Saussurea ; chemistry