1.Retina protection effect of Huwang Mingmu San in experimental vitreous hemorrhage
Jiaxiang XIAO ; Yanyan WU ; Wenmei WANG
China Journal of Traditional Chinese Medicine and Pharmacy 2006;0(09):-
Objective:The purpose of this study was to observe Huwang Mingmu San’s(HWMMS)effect on the experimental vitreous hemorrhage.Methods:We divided 48 rabbits randomly into the A group as the normal control group,the B group as the modal group,the C group as the traditional chinese medicine group(HWMMS)and the D group as the western medicine group(entodan).Six rabbits of the four groups were killed randomly in the 8th week and their vitreous send to TNF-?,IL-6 examination at the same time.We study the activity level of MDA,SOD,NA-K-ATP enzyme on retinal.Results: It was suggested that the TNF-?’s content in HWMMS group had significantly increased than that in the normal group and the model group but no difference was found between the HWMMS group and the entodan group.Meanwhile the results showed that the HWMMS group’s content of IL-6 and MDA was lower and SOD activity,NA-K-ATP enzyme content was higher than those in the model group and the entodan group.Conclusion:We concluded that the HEMMS had a remarkable therapeutic effect on retinal damage and in promoting absorption vitreous hemorrhage.
2.Clinical research of Lipo PGE_1 in the treatment of diabetic peripheral neuropathy
Xiao WANG ; Yanyan WANG ; Ming ZHAO
Journal of Medical Postgraduates 2003;0(08):-
Objective: To observe the therapeutical effects of Lipo PGE_ 1 in the treatment of diabetic peripheral neuropathy. Methods: 42 cases of type 2 diabetes patients with diabetic peripheral neuropathy were recruited and were divided into two groups at random:therapy group treated with Lipo PGE_ l and control group treated with Vitamine B_ 1 and Vitamine B_ l2 . Results: After a treatment of 20 days,symptoms such as pain,numbness and hypoesthesia in cases of therapy group had been improved at different degrees.Examination of Neuroelectrophysiology indicated an increase of sensory nerves conduction velocity and motor nerve conduction velocity.The effects of therapy group outweighed that of control group. Conclusion: Lipo PGE_ 1 can significantly relief the symptoms of diabetic peripheral neuropathy and increase nerve conduction velocity.The mechanism of action may involve improvement of blood-supply of nerve by vasodilatation and inhibition of platelet aggregation that caused by PGE_ l .
3.Cold and hot executive functions between high-level and low-level ruminant thinking individuals
Xiao CHANGGEN ; Jiang HUAIBIN ; Lin KE ; Wu YANYAN
Chinese Journal of Behavioral Medicine and Brain Science 2016;25(3):262-266
Objective To explore the character of ruminant thinking individuals in cold executive functions(cool EF) and hot executive functions(hot EF).Methods According to the score of rumination response scale( RRS) ,17 low-level ruminant thinking individuals and 21 high-level ruminant thinking indi-viduals were screened out and finished the classic Stroop test.Results In the cool EF,it was consistent be-tween low-level and high-level ruminant thinking individuals for color naming task response time ((10.61± 23.20)ms vs (10.79±29.32)ms),and there was no significant difference in the classic Stroop test( t=0.21, P>0.05) .In the hot EF,the respone time of the low-level group was longer than that of high-level group on the positive and negative((-5.01±22.20)ms vs (-10.88±20.33)ms;(8.78±29.96)ms vs (-8.68±19.94) ms) ,and the main effect of the emotional Stroop interference scores between positive and negative words was highly significant(F=10.88, P<0.05) .The interactive effect of emotional Stroop interference scores of words × subjects was significant(F=5.70, P<0.05) .The simple effect tests showed that the emotional Stroop interfer-ence scores between high-level and low-level ruminant thinking subjects were significant in the negative group(F=4.69, P<0.05) .And it was also significant between positive and negative words in the low-level group(F=14.63, P<0.05).Conclusion Two types of subjects in the cold EF have no significant difference. High-level ruminant thinking individuals in the cold EF are normal,but impaired in the hot EF that meaning high-level ruminant thinking individuals had bias to negative emotion.These results provide new clues for the intervention of negative emotions caused by ruminants.
4.Effect of Schisandra Chinensis Baill distilled by ethanol on energy metabolism in brain of repeated cerebral ischemia-reperfusion model mice
Yanyan MIAO ; Mingsan MIAO ; Xiao MA ; Guangwei ZHANG
China Journal of Traditional Chinese Medicine and Pharmacy 2006;0(09):-
Objective:To observe the effect of Schisandra Chinensis Baill distilled by ethanol on energy metabolism in brain of repeated cerebral ischemia-reperfusion model mice.Method:The mice were randomly divided into six groups,respectively irrigating the groups of Nimodipine suspension,ginkgo leaf suspension,and large and small doses of Schisandra Chinensis Baill distilled by ethanol,sham group(blank) and the model group for the same volume of saline,once a day,15 days for delivery.Model mice of cerebral ischemia-reperfusion injury was established by bilateral common carotid artery blocking.48 hours after operation,the rats were decapitated,weight half of the brain and put 9 times saline into it,then the level of LD,vitality of LDH,AchE and ATP were measured.Results:Compared with model group,small doses of Schisandra Chinensis Baill distilled by ethanol could markedly reduce the content of LD of mice of repeated cerebral ischemia-reperfusion,large doses of Schisandra Chinensis Baill distilled by ethanol could notably improve the vitality of LDH;large and small doses of Schisandra Chinensis Baill distilled by ethanol could both notably improve the vitality of AchE,large doses of Schisandra Chinensis Baill distilled by ethanol could notably improve the vitality of Na+-K+-ATP、Ca2+-ATP.Conclusion:Schisandra Chinensis Baill distilled by ethanol could markedly improve the energy metabolism of the model of repeated cerebral ischemia-reperfusion of mice.
5.Delayed K562 cell apoptosis promoted by cleaved LyGDI after 60Co γ-rays irradiation
Huali SUN ; Weiming DUAN ; Yanyan SHAO ; Hainan XIAO ; Xinwen ZHOU
Chinese Journal of Radiological Medicine and Protection 2010;30(6):643-646
Objective To elucidate the function and regulatory mechanism of LyGDI involved delayed cell death in the human K562 cells and HL-60 cells induced by 60Co γ-rays. Methods Erythrosine B cells staining was used to count the apoptosis rate. PI staining and flow cytometry were applied to check the cell cycle. The expression of LYGDI and Rac1 was resolved by Western blot by using monoclonal antibody of LyGDI and Racl. The distribution of Racl protein in cells was observed with immunofluorescence by using the confocal microscope. Results The K562 cells showed G2/M phase arrest and the percent age was 71.3%. The apoptosis rate was very low at early post-irradiation stage in the K562 cells. The apoptosis rate was 14% in the K562 cells at 24 h post-irradiation with 8 Gy of γ-rays, and delayed cell apoptosis was present. LyGDI was cleaved in the K562 cells irradiated by 4 Gy 60 Co γ-rays after 24 hours post-irradiation. The expression of Racl protein was not altered at all, but the distribution was changed in the irradiated cells while the Racl protein moved to cell membrane and a little in cell nucleus. The Racl was activated with the losing the binding affinity with the LyGDI. Conclusion LyGDI could promote the delayed cell apoptosis, which is through the activation of the Rac1.
6.Diagnostic value of serum procalcitonin in pulmonary tuberculosis compli-cated with pulmonary infection
Zhenhua CHEN ; Xiao TAN ; Yanyan YU ; Yunhong TAN
Chinese Journal of Infection Control 2014;(8):482-485
Objective To evaluate the clinical significance of serum procalcitonin (PCT)in early diagnosis of pul-monary tuberculosis (PTB)complicated with pulmonary infection.Methods Clinical data of active PTB patients admitted to a hospital between August and December 2013 were collected,patients were divided into bacterial infec-tion group(n=104),fungal infection group(n=37)and control group (n=95)according to whether patients were associated with bacterial infection,fungal infection,and without infection,serum PCT concentrations in three groups were compared,receiver operating characteristic (ROC)curve analysis was conducted.Results The median PCT concentrations in bacterial infection and fungal infection group was 0.44ng/mL and 0.30ng/mL respectively, which was significantly higher than 0.16ng/mL of control group(Z =9.49,3.51 respectively,both P <0.001 ).The area under curve (AUC)was 0.89(0.84-0.93)and 0.69(0.61 -0.77)respectively;cut-off point was 0.31 ng/mL and 0.27 ng/mL respectively;sensitivity was 79.81%(70.57%-86.80%)and 59.46%(42.19%-74.80%)respectively;specificity was 83.16%(73.79%-89.78%)and 73.68%(63.48%-81.95%)respectively.Conclusion PCT level is a valuable predictor for early diagnosis of PTB complicated with pulmonary infection,and can provide reference for the rational use of antimicrobial agents.
7.Clinical characteristics of ventricular preexcitation dilated cardiomyopathy induced by accessory pathway
Chencheng DAI ; Wenxiu LI ; Yanyan XIAO ; Mei JIN ; Ling HAN
Chinese Journal of Applied Clinical Pediatrics 2014;29(9):683-686
Objective To discuss the characteristics,diagnosis,mechanism and the prognosis of dilated cardiomyopathy (DCM) induced by accessory pathway (AP).Methods The clinical,electrophysiological and echocardiographic characteristics in four cases,who were diagnosed as AP-induced DCM in the Department of Pediatric Cardiology of Beijing Anzhen Hospital,Capital Medical University from Mar.2011 to Aug.2012,were analyzed before and after ablation.Results The electrocardiograms of the 4 patients all indicated type B ventricular preexcitation.The locations of the APs were the right-sided anteroseptum and the free wall.Dyschronous contractions between posterior wall of left ventricle and interventricular septum were demonstrated by M-Mode echo.The basal segments of the interventricular septum turned thin and moved similar to an aneurysm,with typical bulging during end-systole,which was observed in all cases by two-dimension echo.Dyschronous left ventricular contraction was shown by speckle tracing technique.All patients received successful radio frequency current ablations.Their physical activities and growth improved greatly in the 4 cases.The echocardiographic data demonstrated that their left ventricular contraction recovered to synchrony shortly after the ablation,left ventricular ejection fraction recovered to normal and left ventricular end diastolic diameter decreased to almost normal gradually during the follow-up.Conclusions Overt right-sided APs localized in anteroseptum or free wall may have adverse effects on ventricular wall motion and left ventricular function.They can even result in DCM.Dyssynchronous ventricular contraction induced by right-sided overt accessory pathway may be the vital mechanism.AP-induced DCM is an indication for ablation with good prognosis.
8.The research progress of Aurora-B kinase and its inhibitors.
Dandan DONG ; Yanyan XIAO ; Wei LIU ; Honggang ZHOU ; Cheng YANG
Acta Pharmaceutica Sinica 2013;48(4):457-65
Aurora-B as an important kinase to adjust the cell normal mitosis is a potent target for cancer treatment. Aurora-B is overexpressed in a broad range of tumor and tumor cells are more sensitive while Aurora-B is inhibited. Due to the key role of the Aurora-B in cell mitosis, the development of its inhibitors is becoming more and more important. Several small molecules inhibit with a similar efficacy both Aurora-A and Aurora-B, however, in most cases the effects resemble Aurora-B disruption by genetic methods, indicating that Aurora-B represents an effective therapeutic target. There were several Aurora-B kinase inhibitors which had entered the clinics and displayed good antitumor activity. In this review, we will outline the functions of Aurora kinase B in normal cell division and in malignancy. We will focus on recent preclinical and clinical studies that have explored the mechanism of action and clinical effect of Aurora-B inhibitors in cancer treatment.
9.Study on Quality Standard of Flavone Extracts in Licorice Residue
Xiaoshuan LIU ; Xixiang LI ; Zhengguo XIAO ; Jiwen LI ; Yanyan LUO
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(4):67-70
Objective To establish the quality standard of flavone extracts in licorice residue; To provide the methods and basis for the quality control of total flavonoids extracted from licorice residue.Methods TLC was applied to compare the extracts with liquiritin and licorice; UV-spectrophotometry was used to measure the content of total flavones; EDTA-2Na titration was used to determine the content of calciumion.Results In the chromatogram of the test product, the spots of the same color were displayed on the corresponding position of the control medicinal material, and the fluorescent spots of the same color were displayed on the corresponding position of the control product. UV-spectrophotometry showed glycyrrhizin had a good linear relationship in the range of 3.32–9.96 μg/mL (r=0.9997), the absorbance between 0.3 and 0.7. The average recovery rate was 102.41% (RSD=3.22%), and the average content of total flavonoids in three batches of flavonoids extract was 8.82%. The average content of calciumion was 0.107% (RSD=3.61%).Conclusion This method has good repeatability, high sensitivity and accurate results, and can be used for the quality control of flavonoids in licorice residue.
10.Content Determination of Protodioscin and Diosgenin in Dioscoreae Hypoglaucae Rhizoma from Different Habitats by HPLC
Yanyan SHAO ; Xiao XIAO ; Lingfang WU ; Dan ZHU ; Guanghui YANG ; Xiaoxue ZHANG ; Lanzhen ZHANG
Chinese Journal of Information on Traditional Chinese Medicine 2016;23(5):104-106
Objective To establish an HPLC method for the content determination of protodioscin and diosgenin in Dioscoreae Hypoglaucae Rhizoma from different habitats.Methods The chromatographic separation was performed on an Agilent C18 column (4.6 mm×150 mm, 5μm) with mobile phase of acetonitrile-water solution with gradient elution at the flow rate of 0.8 mL/min; the detection wavelength was 208 nm; the column temperature was 30℃; the injection volume was 20μL.Results Protodioscin showed a good linear relationship among the range of 1.73–8.64 μg (r=0.999 6), with the average recovery of 101.98% (RSD=1.53%); Diosgenin showed a good linear relationship among the range of 1.03–8.20μg (r=0.999 1), with the average recovery of 101.60% (RSD=2.41%). The contents of protodioscin and diosgenin in Dioscoreae Hypoglaucae Rhizoma from 10 different habitats were in the range of 0.89%–2.24% and 0.75%–3.22%, respectively.Conclusion The method is simple, accurate and with repeatability, which can be used as quality control method of Dioscoreae Hypoglaucae Rhizoma.