1.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.
2.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.
3.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.
4.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.
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 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
7.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
8.Study on physiological and germination characteristics of Tulipa edulis seed.
Zhengjun WU ; Zaibiao ZHU ; Qiaosheng GUO ; Hongliang MA ; Hongjian XU ; Yuanyuan MIAO
China Journal of Chinese Materia Medica 2012;37(5):575-579
OBJECTIVECurrent study was conducted to investigate the seed physiological characteristics of Tulipa edulis and improve germination rate.
METHODAnatomical characteristics was observed. Seed water absorption curve was tested by soaking method. Dynamic of embryo development and germination rate as well as germination index under different conditions were recorded. And the biological test of cabbage seed was used for detecting the germination inhibitors.
RESULTThe embryo rate of newly matured seeds was about 10%, and there was no obstacle of water absorption on testa of T. edulis. The optimum method for embryo development was exposure to 300 mg x L(-1) gibberellin solution for 24 hours, and stratification at 25 degrees C for 70 days followed by stratification at 5 degrees C for 40 days. The germintion rate and germination index of dormancy-broken seeds under the dark environment at 10 degrees C and 15 degrees C were significantly higher than those under other conditions. Additionally, there were some germination inhibitory substances in dry seeds.
CONCLUSIONThe seed of T. edulis can be classified as having complex morphophysiological dormancy, and the morphological embryo dormancy played a leading role. Warm and cold stratification resulted in a fast dormancy breaking effect, and a high germination rate more than 90% could be obtained under the optimum conditions.
Germination ; physiology ; Seeds ; physiology ; Tulipa ; physiology
9.Effects of light intensity on growth and photosynthetic characteristics of Tulipa edulis.
Hongjian XU ; Zaibiao ZHU ; Qiaosheng GUO ; Zhengjun WU ; Hongliang MA ; Yuanyuan MIAO
China Journal of Chinese Materia Medica 2012;37(4):442-446
OBJECTIVEPresent study was conducted to explore the growth and photosynthetic characteristics of Tulipa edulis under different light conditions (23%, 45%, 63%, 78%, 100% of full sunlight) and to determine the optimum light intensity for growth of T. edulis.
METHODThe leaf area and biomass indicators as well as reproductive characteristics were measured. The photosynthetic basic parameters and light response curve were determined by a LI-6400XT portable photosynthesis system, and the light response curve characteristic parameters was determined. Additionally, chlorophyll fluorescence parameters were determined by assorted fluorescence leaf chamber of LI-6400XT.
RESULTThe lowest biomass yield was observed in the 23% and 100% of full sunlight treatments while the highest value was found under the 78% of full sunlight conditions. With the reduction of light availability, the success rate of sexual reproduction, light saturation point (LSP) and light compensation point (LCP) reduced, while apparent quantum yield (AQY) increased. 23% and 45% of full sunlight treatments led to lower photosynthesis rate (Pn) and higher apparent quantum yield (AQY) in comparison with other treatents. The highest photosynthesis rate was observed in the 78% and 100% of full sunlight treatments. In addition, 78% of full sunlight treatments led to highest Fv/Fm, Fv'/Fm', PhiPS II, ETR, and qP.
CONCLUSIONT. edulis was able to adapt in a wide range of light intensity, and 78% of full sunlinght was the most suitable light condition for growth of T. edulis.
Biomass ; Dose-Response Relationship, Radiation ; Photosynthesis ; radiation effects ; Sunlight ; Tulipa ; growth & development ; metabolism ; radiation effects
10.Preliminary study on pollination biology of Tulipa edulis.
Zhengjun WU ; Zaibiao ZHU ; Qiaosheng GUO ; Hongjian XU ; Hongliang MA ; Yuanyuan MIAO
China Journal of Chinese Materia Medica 2012;37(3):293-297
OBJECTIVECurrent study on the pollination biology of Tulipa edulis was conducted to investigate its pollination characteristics and to provide references for artificial domestication and breeding of T. edulis.
METHODFlowering dynamics, pollinators, morphology and structure of flower were observed. Different methods were adopted to evaluate the pollen vitality, and benzidine-H2O2 method was used for estimation of the stigma receptivity. Breeding system was evaluated based on out-crossing index (OCI) , pollen-ovule ratio (P/O) and the results of emasculation, bagging and artificial pollination studies.
RESULTThe flower of T. edulis showed typical characteristics of Liliaceae. The pollen remained viable to some extent during all the anthesis and peaked within three days after blossoming. Stigma acceptability peaked in the first day of blossom and dwindled away in the next four days. The type of breeding system of T. edulis was facultative xenogamy, three species of Halictus are the main pollination insects.
CONCLUSIONThe type of breeding system of T. edulis was facultative xenogamy, withal cross-pollination give priority to self-pollination, and the insects play a main role on the pollination of T. edulis, further validation are needed to judge if the wind is helpful to pollination.
Breeding ; Flowers ; Pollen ; Pollination ; Tulipa ; physiology