1.EFFECT OF TAURINE ON MODULATING CALCIUM OF CARDIAC MUSCLES IN RATS
Yi KANG ; Ping LI ; Guoxiang WANG
Chinese Pharmacological Bulletin 1986;0(04):-
The effect of Taurine ( Tau)on 45Ca influx of isolated left ventricular muscles in rats has been investigated. The 45Ca influx of the preparations untreated with Tau, are affected by the concentrations of calcium in KH solution. when the concentration of calcium is 0.62; 1.25; and 1.87mmol/L respectively, the 45Ca influx is 1.02? 0.25; 1.37?0.14 and 1.45?0.14 ?mol/g wet tissue, respectively. After adding Tau, the situations above were changed significantly. It was shown that is 1.11 ? 0.11, 1.45?0.12, and 1.48 ? 0.09 ?mol/g wet tissue in low Ca2?; 1.19?0.07, 1.14 ? 0.23, and 0.97?0.24 ?mol/g wet tissue in normal Ca2?; and 1.12?0.05,0.58?0.18 and 0.53?0.10 ?mol/g wet tissue in high Ca2? treated with Tau 10, 20, and 40 mmol/L, respectively. The results show that the varied ,Ca2? concentrations in KH solution can affect 45Ca influx of cardiac muscles, but Taurine has a bisphasic modulation o,f calcium influx in the same tissue. The effects of modulating calcium may play an important role for anti-arrhythmic mechanism of Taurine.
2.Researchin NANDA-Ⅰ Nursing Diagnoses, NIC Interventions, NOC Outcomes, and NNN Linkages for elderly patients with abdominal external hernia surgery
Chenxi LIU ; Ping LI ; Junfeng KANG ; Ying LI
Chinese Journal of Practical Nursing 2015;31(6):414-417
Objective The purpose of the study was to identify the most frequently used nursing diagnoses,interventions,outcomes and linkages using standardized nursing terminologies for elderly patients with abdominal external hernia surgery.Methods For this study a descriptive design was used.The frequently used NANDA-Ⅰ,NIC,NOC,and NNN linkages were identified through 38 elderly patients with abdominal external hernia surgery who were admitted in hospital from March to August in 2014.Data were analyzed by SPSS17.0.Results The finding showed the most frequently used 5 nursing diagnoses were activity intolerance,impaired tissue integrity,deficient knowledge,chronic pain,and risk for falls,the frequency were 15.51%(38/245),15.51%(38/245),15.10%(37/245),14.69%(36/245) and 14.69%(36/245),the most frequently used 5 nursing outcomes were activity tolerance,ambulation,tissue integrity (skin and mucous membranes),wound healing (primary intention) and knowledge (diet) the frequency were 10.05%(38/378),10.05%(38/378),10.05%(38/378),10.05%(38/378) and 9.79%(38/378); the most frequently used 5 nursing interventions were environmental management (comfort),positioning,exercise therapy (ambulation,) incision site care and environmental management the frequency was all 6.96%(38/546).The most frequently used top 10 NNN linkages were also identified in this study.Conclusions The most frequently used NANDA-Ⅰ,NIC,NOC,and NNN linkages for patients with abdominal external hernia surgery from this study not only offer new knowledge to nurses but also provide scope of evidence-based nursing research in abdominal external hernia clinics.
3.Hypoxia promotes proliferation of bone marrow mesenchymal stem cells and maintains their potential of differentiation
Shaoping KANG ; Shuyan LIU ; Yongsheng LI ; Ping LI
Chinese Journal of Comparative Medicine 2017;27(7):70-74
Objective To observe the promoting effect of hypoxia on proliferation of human bone marrow mesenchymal stem cells (BMMSCs) and maintaining their potential of multi-directional differentiation in vitro.Methods BMMSCs were isolated from bone marrow blood samples of patients with bone fracture, and cultured under hypoxic (group A) or normoxic (group B) conditions.The morphology, proliferation and osteogenic and adipogenic potential of the BMMSCs were observed.Results BMMSCs in the group A showed a long spindle shape and a fish shoal-like distribution, and were well-grown, while the morphology of cells in the group B appeared polygonal or flat.The quantity and growth rate of BMMSCs in the group A were increased compared with the group B (P< 0.05), with an osteogenic and adipogenic potential.Conclusions Hypoxia can promote the proliferation of BMMSCs in vitro and maintain their multi-directional differentiation potential.
4.Research progress on effects of traditional Chinese medicines on proliferation, apoptosis and differentiation of bone marrow mesenchymal stem cells.
Jian-Kang FANG ; Yi-Ping ZHOU ; Ma-Lin LI
China Journal of Chinese Materia Medica 2014;39(15):2834-2837
Bone marrow mesenchymal stem cells (BMSCs) are a kind of pluripotent stem cells derived from bone marrows, which can not only support hematopoiesis, but also have capabilities of multidifferentiation, high-proliferation and self-renewing. They have become one of hotspots in stem cell studies. Studies on in vitro intervention with BMSCs with TCMs have made remarkable progress in recent years. According to the findings, some traditional Chinese medicines can promote proliferation of BMSCs, some can inhibit the apoptosis of BMSCs, while others can induce BMSCs to differentiate into multiple cell types, such as osteoblast. Furthermore, some studies also involved relevant action mechanisms. The authors summarized the advance in relevant studies by reference to relevant literatures of this field.
Animals
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Apoptosis
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drug effects
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Bone Marrow Cells
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cytology
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Cell Differentiation
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drug effects
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Cell Proliferation
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drug effects
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Humans
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Medicine, Chinese Traditional
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methods
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Mesenchymal Stromal Cells
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cytology
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drug effects
5.Selective COX-2 inhibitor Celecoxib prevents postoperative abdominal adhesion
Kang WANG ; Xuqi LI ; Guangbing WEI ; Xin XU ; Gaofeng PING
Journal of Xi'an Jiaotong University(Medical Sciences) 2010;31(2):217-220
Objective To determine the preventive effect of Celecoxib on postoperative adhesion formation and its mechanism. Methods We divided 80 SD rats into 5 groups: Groups A, B, C, H and S. Rats in Groups A, B, C and H received the operation of peritoneum rubbing to promote adhesion formation. Group S underwent sham operation. Rats in Group B were given Celecoxib of 40 mg/(kg·d), those in Group C were also given Celecoxib of 20mg/(kg·d), and those in Group H were given sodium hyaluronate (HA) during the operation. On the 8th and 15th postoperative day, half of the rats were sacrificed, the extent of adhesion formation was assessed and the adhesive peritoneum was subjected to immunohistochemistry with VEGF and CD_(34). Results The extent of postoperative adhesion differed significantly among the five groups (P<0.01). Groups B and C had significantly fewer adhesions than Groups H and A. VEGF was expressed most highly in Group A, followed by Groups H, C and B, and most weakly in Group S. CD34 was expressed most highly in Group A, followed by Groups H, C and B, and most weakly in Group S. Conclusion Celecoxib provides durable inhibition of intra-abdominal adhesions in a murine model compared with HA. The mechanism of preventing intra-abdominal adhesion via inhibiting COX-2 is possibly through down-regulated expression of VEGF and reduced microvascular density.
6.Study on chemical constituents in stems of Nelumbo nucifera by UPLC-ESI/Q-TOF-MS/MS.
Feng SHAN ; Yuan YUAN ; Li-ping KANG ; Lu-qi HUANG
China Journal of Chinese Materia Medica 2015;40(16):3233-3238
This paper employed UPLC-Electrospray Ionization /Quadrupole-Time of Flight-Mass /Mass Spectrometry( UPLC-ESI/Q-TOF-MS/MS) to analyze the chemical constituents in the stems of Nelumbo nucifera. The stems of N. nucifera were extracted with 75% methanol, and we applied an Agilent Zorbax SB-Aq column (2.1 mm x 100 mm, 1.8 μm) to UPLC analysis with water methanol-water( containing 0.05% formic acid) in gradient as mobile phase. The eluates were then detected by ESI-Q-TOF-MS/MS. Results indicated that 22 benzylisoquinoline alkaloids were indendified. Among them, one alkaloid may be a new compound and a component was found in the Lotus for the first time. We fully identify the composition of the Lotus stems for the first time, Which could provides theoretical foundation for further study and utilization of the medicinal resources.
Chromatography, High Pressure Liquid
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methods
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Drugs, Chinese Herbal
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chemistry
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Molecular Structure
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Nelumbo
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chemistry
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Plant Stems
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chemistry
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Tandem Mass Spectrometry
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methods
7."Locating Lung Block by ""Regulative Aperture Mode"" in Total Body Irradiation(TBI)"
Ping LI ; Huosheng XIA ; Zhichen LIU ; Jian ZHAO ; Kang WANG
Chinese Journal of Medical Physics 2010;27(1):1592-1593
Objective:To introduce estimate a technique ofregulative aperture methodin locating lung block in TBI.Methods:We excavated a square aperture in the foam template which is used to fasten the lung block,and the projection formed by the field light through the aperture is used as the reference for adjusting the location of the lung block.Measure the windage of lung shades and block shades by X-ray,in 8 patients.Results:windage values of head-feet and left-right orientations are smaller inregulative aperture modethan in conventional method respectively.Conclusions:Regulative aperture methodis an easy and effective technique to improve lung shielding precision in TBI.
8.Genetic diversity in germplasm resources of Trigonella foenum-graecum based on biological characters
Ping LIU ; Lijie ZHANG ; Hongwei MA ; Yingke LI ; Guo KANG
Chinese Traditional and Herbal Drugs 1994;0(04):-
Objective To analyze the genetic difference of biological characters on germplasm resources of fenugreek(Trigonella foenumgraecum) and to study the genetic diversity of them.Methods Thirty-two fenugreek germplasm resources from Ningxia, other provinces in China,and abroad were used to investigate the biological characters on plant height,pod formation height,nodes per main stem,branches number,effective pod per plant and so on.The tested materials were planted in the farm of Ningxia University.The genetic diversity based on the phenotype was analyzed by Word′s minimum variance method.Results The variance analyses of ten biological characters were of significance or the most significance except pod length.The branches number and effective pod per plant possessed the largest coefficient of variance(CV). The pairwise Euclidean distance of the tested materials ranged from 1.11 to 9.49,averaged 4.01.Mean Euclidean distance of single tested material ranged from 2.94 to 6.54.The tested germplasm resources could be divided into three groups in D=6.86,which coincided with the district of collecting germplasm resources on the whole.Conclusion There is a little genetic difference in various fenugreek germplasm resources.Compared with Euclidean distance of germplasm resources from Ningxia,the Euclidean distance of most from abroad is far away from that of other provinces in China.
10.Expression of urokinase-type plasminogen activator in non-small cell lung cancer
Zhiqiang KANG ; Bin JIANG ; Ping LI ; Yajie WANG ;
Academic Journal of Second Military Medical University 2000;0(08):-
3 cm,66.67%,18/27) than those in smaller tumors(