1.Content Determination of Hydroxy Safflower Yellow A in Inner Mongolia Patent Medicine "Biyanqing"by HPLC
Yun KONG ; Dong WANG ; Yan LIN
International Journal of Traditional Chinese Medicine 2008;30(4):257-258
Objective To establish content determination of hydroxyl safflower yellow A in Biyangqing.Methods Hhgh-performance liquid chromatography(HPLC)was used in the determination.A C18 column was used for the separation flow rate Was set at 1.0mL/min,the temperature of the column was set at 30℃,and wavelength of diction was set at 403 nm.with 100.08%average recovery and 0.98%RSD.Conclusion This detrmination method is specific and reproducible and can be used to control the quality of Biyangqing.
2.On the management mechanism for AIDS prevention and control and patient care model
Yu SHENG ; Yan ZHANG ; Xingfu SHEN ; Deguang KONG ; Yun HE ; Santao WANG ; Pengqian FANG
Chinese Journal of Hospital Administration 2009;25(10):708-712
Objective A comparison of the quality of life and present status of happiness between AIDS patients in Provinces A and B helps to analyze the impact of the prevention and control mechanism on choice of the AIDS patient care mode.Methods The quality of the life questionnaire designed by WHO for AIDS patients and the Subjective Well-being questionnaire from the Memorial University of Newfoundland were called into play to describe the quality of life and present subjective wellbeing of 93 and 57 AIDS patients respectively from Province A and Province B;these patients were interviewed to understand the systematic arrangements of AIDS control in the two provinces and their AIDS patient care models.Results Differences found in the scores of the total quality of life and subjective wellbeing between the two provinces are significant statistically (P<0.05);differences found in the scores of respective dimensions of quality of life,except for social relations,are significant statistically (P<0.05).Results of interview found that the prevention and control mechanism of Province A feature a combination of medical administration and disease control departments,management by level of city,county,township and village.The care mode is characteristic of that centering on village doctors.The patient care mechanism in Province B features sectionalized management,and its model is characteristic of that centering on local CDC aided by infectious disease hospitals.Conclusion Establishment of the AIDS prevention and control mechanism should take into account features of local resources,and different regions should provide care models to fit the needs of local AIDS patients.
3.Establishment and practice of SCI papers management system
Yuanyuan KONG ; Yan CUI ; Jingping SU ; Xiaofei LYU ; Wei WEI ; Yun ZHANG ; Hufeng XU ; Hong YOU ; Youqing XIN
Chinese Journal of Hospital Administration 2015;(7):554-555
The quality of SCI papers is one of the objective indexes of evaluation on scientific and technological strength and research capabilities.This paper introduced a comprehensive management strategy to promote the publication of SCI papers with high impact factors,in terms of such dimensions ass research orientation,financial and technical support,personnel training,and scientific research management platform.The short and long term effects of the comprehensive management strategy system were analyzed using the SCI papers publication data and IF data from 201 1 to 2014 at the hospital,as a reference for building a scientific management system of SCI papers for the administrators.
4.Effects of taurine on hemorheology of rats with type 2 diabetes.
Fei-Fei ZHANG ; Yan-Min ZHANG ; Xiu-Li MEN ; Li-Jun ZHAO ; Xiao-Yan KONG ; Shun-Yun DONG
Chinese Journal of Applied Physiology 2010;26(4):474-476
OBJECTIVETo observe the effects of taurine on hemorheology and oxidative stress of diabetic rats.
METHODS40 rats were divided into control group, diabetes group and treatment group at random. Diabetic model was reproduced by intraperitoneal injection of streptozotocin. After having been treated with taurine for 8 weeks, glycosylated hemoglobin (HbA1c) and the serum contents of glucose, superoxide dismutase(SOD), malondialdehyde (MDA) were measured. The changes of hemorheology in different groups were detected respectively.
RESULTSCompared with control group, the content of glucose, MDA and HbA1c in diabetic rats was increased, the activity of SOD was decreased, the levels of whole blood viscosity and the aggregation index of red blood cells and hematocrit were increased and RBC deformability index was decreased in diabetic rats. Moreover, taurine was able to apparently reduce high blood glucose and HbA1c (P < 0.05), markedly elevated the activity of SOD, lowered the content of MDA (P < 0.01); and taurine also could significantly reduce the levels of whole blood viscosity and the aggregation index of red blood cells and hematocrit in the meanwhile, and increase RBC deformability index (P < 0.05 or P < 0.01).
CONCLUSIONTaurine could enhance the ability of oxidation resistance, improve blood rheology property in diabetic rats, at the same time it could be beneficial to prevent and cure the development of diabetic blood vessel complication.
Animals ; Blood Glucose ; Diabetes Mellitus, Experimental ; blood ; Diabetes Mellitus, Type 2 ; blood ; Erythrocyte Deformability ; Glycated Hemoglobin A ; metabolism ; Hemorheology ; Male ; Malondialdehyde ; metabolism ; Oxidative Stress ; Rats ; Rats, Wistar ; Superoxide Dismutase ; metabolism ; Taurine ; pharmacology
5.Effects of acupuncture combined with medicine on expression of matrix metalloproteinase-2 in the rat of endometriosis.
Yun-Fei CHEN ; Chun-Yan ZHANG ; Xiao-Yun ZHANG ; Man-Ping SUN ; Yun ZHANG ; Lan HUANG ; Wen-Yan JIANG ; Wen-Jia YANG ; Wei-Guang KONG
Chinese Acupuncture & Moxibustion 2008;28(9):675-680
OBJECTIVETo probe into an effective method for treatment of endometriosis (EMs) and the mechanism.
METHODSRat EMs model was established and they were randomly divided into a model group, an acup-moxibustion group, a TCM group, an acupuncture and medicine group, with a control group set. The acup-moxibustion group were treated with electroacupuncture at "Xuehai (SP 10)", "Sanyinjiao (SP 6)" and moxibustion at "Guanyuan (CV 4)"; the TCM group were treated with stomach perfusion of modified Mojie Tablet in normal saline; the acupuncture and medicine group were treated with the above two methods; both the control group and the model group were bound and treated with stomach perfusion of saline. After treatment of 35 days, the greatest diameter of the ectopic tissue was measured in the rats, pathological observation of the ectopic tissue was made and matrix metalloproteinase-2 (MMP-2) expression in the ectopic tissue was determined.
RESULTSThe greatest diameter of ectopic tissue and MMP-2 expression in the ectopic tissue in the acupuncture and medicine group were significantly lower than those in the model group, the acup-moxibustion group and the TCM group (P < 0.05); and the ectopic endometrium trended to atrophy, and with necrosis of some epithelial cells.
CONCLUSIONCombination of acupuncture with medicine has a better therapeutic effect on endometriosis and down-regulates the abnormal increase of MMP-2 level to inhibit the invasion of ectopic tissue to extracellular matrix, so as to reduce the ectopic tissue, hence cure of endometriosis.
Acupuncture Therapy ; Animals ; Combined Modality Therapy ; Endometriosis ; enzymology ; pathology ; therapy ; Female ; Immunohistochemistry ; Matrix Metalloproteinase 2 ; analysis ; Medicine, Chinese Traditional ; Rats ; Rats, Sprague-Dawley
6.Intrinsic membrane properties of rat medial vestibular nucleus neurons and their responses to simulated vestibular input signals.
Jiao XIA ; Wei-jia KONG ; Yun ZHU ; Yan ZHOU ; Yu ZHANG ; Chang-kai GUO
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2008;43(10):767-772
OBJECTIVETo study the membrane properties of rat medial vestibular nucleus (MVN) neurons and their firing responses to simulated input signals of peripheral vestibular system, and to discuss how the intrinsic membrane properties contribute to physiologic functions in central vestibular system.
METHODSBy using infrared differential interference contrast technique, whole-cell recordings were made from rat MVN neurons under direct observation. On the basis of their averaged action potential shapes, the MVN neurons were classified. Linear and non-linear currents were put into the neurons to simulate the input signals of peripheral vestibular system. The differences of intrinsic membrane properties and firing response dynamics were observed between two types.
RESULTSThe discharge activities were recorded in MVN neurons, which remained in low Ca2+-high Mg2+ artificial cerebrospinal fluid (ACSF). Neurons are classified as type A (33%) characterized by a single deep after-hyperpolarization (AHP) and A-like rectification, or type B (63%) characterized by double AHP, and another two neurons with all or none of the characters. The passive membrane properties were not significantly different between type A and type B neurons, while part of active membrane properties was significantly different. Both type A and B neurons well responded to simulated current inputs, but disparities existed in response range and firing dynamics.
CONCLUSIONSThe discharge activities of MVN neurons were initiated by their intrinsic membrane properties. Most MVN neurons were classified as type A and B, while several showed unrepresentative firing properties. Linear and nonlinear inputs evoked a heterogeneous range of firing responses. The differences of response range and firing dynamics between neurons may determine their different physiological functions.
Action Potentials ; Animals ; Neurons ; metabolism ; physiology ; Patch-Clamp Techniques ; Rats ; Rats, Sprague-Dawley ; Signal Transduction ; Vestibular Nuclei ; cytology ; metabolism ; physiology
7.Effects of taurine on TNF-alpha and NF-kappaB expression of liver injury after limbs ischemia/reperfusion in rats.
Na ZHANG ; Lian-Yuan ZHANG ; Yin-Huan WANG ; Shu-Yun DONG ; Xiao-Yan KONG ; Li-Jun ZHAO
Chinese Journal of Applied Physiology 2009;25(1):18-21
AIMTo investigate the effect of pretreatment with taurine on liver injury changes and the change of tumor necrosis factor alpha and NFkappaB expression following rats limbs ischemia/reperfusion.
METHODSThe model of limbs ischemia/reperfusion injury on rats was adopted in the experiment. Wistar rats were randomized into 4 groups (n = 10): Control group, T group, I/R group and TR group. Levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and MDA in the plasma, MDA, MPO, calcium in liver tissues were measured by colorimetric method. The content of TNF-alpha in plasma and liver tissues was determined by radioimmunoassay. The morphologic changes were observed with HE staining. The expressions of NF-kappaBp65 in liver tissues were tested by immuno-histochemistry method.
RESULTSIt was found that against the control group, the test values of ALT, AST, et al. and expressions of TNF-alpha, NF-kappaB increased in I/R group and TR group, but values of those in TR group were lower than in I/R group.
CONCLUSIONTaurine can decrease the levels of TNF-alpha and NF-kappaB. It can mitigate the liver injury after limb ischemia/reperfusion injury in rats.
Animals ; Extremities ; blood supply ; Ischemia ; physiopathology ; Liver ; blood supply ; Male ; NF-kappa B ; genetics ; metabolism ; Protective Agents ; pharmacology ; Random Allocation ; Rats ; Rats, Wistar ; Reperfusion Injury ; metabolism ; prevention & control ; Taurine ; pharmacology ; Tumor Necrosis Factor-alpha ; genetics ; metabolism
8.Isolation and purification of antimicrobial polypeptide HMGN2 from human lymph node and analysis of its distribution.
Wei LI ; Ping ZHANG ; Xiangli KONG ; Yan LI ; Sixu CHEN ; Yun FENG ; Qi WU ; Boyao WANG
Journal of Biomedical Engineering 2010;27(4):842-846
This study was conducted to isolate and purify antimicrobial polypeptides HMGN2 (high mobility group nucleosomal-binding domain2) from human lymph node, to detect the antimicrobial activity of HMGN2, and to determine the subcellular location of HMGN2 in human lymph node. The antimicrobial polypeptides were purified by the Reverse Phase HPLC and identified by Tricine-SDS-PAGE. The antimicrobial activity was detected by agar diffusion test. Mass spectrum and Western-blot analysis indicated the individual character of protein. HMGN2 was isolated and purified from human lymph node, and it showed antimicrobial potency against the pathogenic strain E. coli 54,080. The immunocytochemistry staining indicated that HMGN2 was present both in human lymph node cells' nucleus and cytoplasm. In conclusion, HMGN2 protein is of antimicrobial activity and it is probably involved in the defence of innate immunity in vivo.
Antimicrobial Cationic Peptides
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isolation & purification
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metabolism
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Escherichia coli
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drug effects
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HMGN2 Protein
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isolation & purification
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metabolism
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Humans
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Lymph Nodes
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chemistry
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metabolism
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Tissue Distribution
9.Value of fetal cardiac axis measured in the fetal echocardiography of the second trimester
Yun ZHANG ; Yonghao GUI ; Yingliu YAN ; Wei ZHAO ; Xiaowei HUANG ; Ying YAO ; Fanbin KONG ; Yunyun REN ; Yuqing ZHOU ; Chen CHU ; Jizi ZHOU
Chinese Journal of Ultrasonography 2012;21(1):39-41
Objective To establish the reference ranges for fetal cardiac axis in the mid-second trimester and to evaluate the use of fetal cardiac axis in prenatal diagnosis.Methods 6744 unselected singleton pregnancies were enrolled from September 2008 to October 2010.Routine screening scan of second trimester and fetal echocardiography were performed at 18- 23+6 weeks gestation.Fetal cardiac axis was measured on the four-chamber view of the heart.Results The 6744 fetuses had a mean cardiac axis of (37.03 ± 6.10)°,ranging from 9.80° to 102.41°. Using above or below 95% range of population (26.63° -49.40°) as a cut-off,there were significant difference of cardiac axis between normal group [(36.96 ± 5.91)°,P <0.01] and the group with heart defects [(43.12 ± 15.67)°,P <0.01],the group with intrathoricic anomalies or abdominal wall defect [(51.74 ± 15.97)°].ConclusionsThe reference ranges of fetal cardiac axis for local population in mid-second trimester may helpful for detecting congenital defects.Presence of an abnormal cardiac axis in the fetuses is associated with a substantial risk of congenital heart disease and/or other extra cardiac defects.
10.Synthesis and evaluation on triglyceride inhibitory activities of novel indole alkaloids
Li-ping ZHAO ; Yang-yang CHENG ; Tian-yun FAN ; Qing-xuan ZENG ; Wei-jia KONG ; Dan-qing SONG ; Yan-xiang WANG
Acta Pharmaceutica Sinica 2022;57(2):433-440
Three tricyclic [6,5,7] and six tetracyclic [6,5,5,5] novel indole alkaloids were synthesized and evaluated on triglyceride inhibitory activities for the first time. Among them, compound