1.The Observation in Pelvic Floor by the Transperineal Ultrasound in Patients with Stress Urinary Incontinence in Late Pregnancy and ROC Curve Analysis
Ning LI ; Lin MA ; Yanmin KAN
Journal of China Medical University 2015;(2):156-159
Objective To investigate the clinical diagnostic value of transperineal ultrasound in women in late pregnancy with stress urinary inconti?nence. Method Totally 66 cases of women in late pregnancy were selected,who did not suffer from SUI(groupⅠ),and 54 cases of women in late pregnancy who suffered from SUI(groupⅡ). Another 63 cases of healthy childless women were used as normal control(groupⅢ). Transperineal ultrasound was used to dynamically observe their pelvic floor structure,and the ultrasonic parameters were recorded and analyzed,including the posi?tion of bladder neck in X axis and Y axis((Djx,Dzx,Djy,Dzy)during resting period and tension period,the vesicourethral angle(αj,αz),the Bladder angle(βj,βz). The moving of the bladder neck in X axis(ΔDx=Dzx-Djx)and Y axis(ΔDy=Dzy-Djy),as well as the bladder rotation an?gle(Δβ=βz-βj)were calculated and the movement of the bladder neck(ΔD)was measured,followed by comparative analysis. The threshold val?ues of all ultrasonic parameters were determined by the ROC curve analysis. Results The bladder neck of all three groups were backward during tension period. Compared with groupⅢ,ΔDy,Djx,Dzx obviously decreased in groupⅠand groupⅡ,whileβj,βz,αj increased significantly.ΔDx of groupⅡwas significantly larger than that of groupⅢ(P<0.05);There was significant difference in Djy,Dzy,ΔD,Δβandαz among the three groups(P<0.05);In ROC curve analysis,when the critical value of Djy,Dzy,ΔDy,ΔD,αz andΔβwas-1.75 cm,-1.71 cm,0.25 cm,0.29 cm,131.5° and 3.5° ,their sensitivity was 88.9%,88.9%,72.2%,83.3%,88.9%and 72.2%,and the specificity was 72.2%,81.8%,72.7%, 95.5%,86.3%and 68.2%,respectively. Conclusions The transperineal ultrasound could clearly show the pelvic floor of the women in late preg?nancy,the bladder urethral support structure damage or defect was more serious in the women in late pregnancy who were suffering from SUI,and the determination of the critical values of all ultrasonic parameters helped the screening of SUI in women in late pregnancy.
2.Preliminary study on formalizing process of Changle Granule
Zhijun FU ; Yinin LIN ; Junwei KAN
Chinese Traditional Patent Medicine 1992;0(07):-
Objective:To screen better excipient and better ratio of the excipients and to improve the formability of the compound Chinese medicine Changle (Saliva Miltiorrhiza) and resistant to moisture of the granules. Methods: Through measuring the distribution of the size and the absorption of moisture of the granule the formability was determined. Under high moisture for a moment, the amount of absorption of moisture and the flowability of the granule was measured and the appearance was observed as to determine the nature of resistant to moiture of the granules. Results: The better excipients was soluble starch and avicel. It was better that the combined excipients of starch: avicel in a ratio of 1∶1 was mixed with the extract powder in a ratio of 2∶3. Conclusion: When the combined excipients of starch: avicel in a rato of 1∶1 was used, the extract powder was easy to be formed and the granule made was moisture-resistant.
3.Reflection on Opening of Section for Outpatients for Risk Assessment and Communication of Medication Use in Pregnancy by Pharmacists
Yuxian LIN ; Jianhua XIONG ; Jinzhao YANG ; Zhong LIN ; Xin KAN
China Pharmacist 2014;(10):1733-1735,1736
Objective:To discuss the necessity of the opening of a pharmacist section for outpatients for risk assessment and com-munication of drugs in pregnancy by surveying the use situation and risk reasons of the drugs was in pregnancy. Methods:Referring to the risk classification of medicines in pregnancy formulated by FDA and integrating various factors in pregnant women, such as drug dosage, administration time, genetic factors, prenatal care and potential diseases et al, pharmacists established the section for outpa-tients for risk assessment and communication of drugs in pregnancy. Results:The visiting number of pregnant women was gradually in-creased after the establishment by reviewing the clinical data from the hospital information system. The new pharmacy service mode pro-vided by pharmacists for obstetrical patients was positively recognized by physicians and patients. Conclusion:The section for outpa-tients for risk assessment and communication of drugs in pregnancy should be established in order to promote the pharmaceutical knowl-edge in pregnancy and improve the medication safety.
4.The role of cyclophilin A in the development of abdominal aortic aneurysm
Kan HUANG ; Shixiong HU ; Sanming WANG ; Lin PENG
International Journal of Surgery 2011;38(4):270-274
Abdominal aortic aneurysms (AAA) is one kind of common vascular disease. Inflammation and matrix degradation in the vasculature are crucial for AAA formation, key mechanism of which include vascular smooth muscle cell(VSMC) senescence, oxidative stress, increased local production of proinflammatory cytokines, and increased activities of matrix metalloproteinase (MMPs). Cyp A, the member of cyclophilins,has a variety of physiological functions. It is highly expressed in VSMC, and plays an important role in the development of AAA, making it a new therapeutic target for such disease.
5.Expression of NogoA in 21a area of visual cortex in visual developing normal cat and strabismic amblyopia cat
Zhen, GUO ; Bing, LIU ; Jin-yong, LIN ; Kan-xing, ZHAO
Chinese Journal of Experimental Ophthalmology 2012;30(3):228-232
BackgroundThe study of the molecular mechanism of visual plasticity is helpful for the explaining and prevention of strabismus and amblyopia.The effect and significance of NogoA in the strabismus and amblyopia formation are attracting more attention.ObjectiveThe present study was to investigate the expression of NogoA in 21a area of visual cortex in strabismic-induced amblyopia cats and explore the possible molecular mechanism of strabismic-induced amblyopia.MethodsSixteen 4-week old clean cats were randomizedly divided into normal group and strabismic-induced amblyopia group and eight for each group.The strabismic-induced amblyopia models were created by cutting off the external rectus in 8 cats.Pattern visual evoked potentials ( P-VEP ) were recorded 1 week after operation and compared with normal cats,and depression of amplitude and prolongation of implied time of P100 wave were as the successful criterion of model.The 200 ml paraformaldehyde was infused via heart to fax the brain under the deep anesthesia and then the cats were sacrificed and the brain cortex sections were prepared.The morphology of 21a zone of cat visual cortex was examined by haematoxylin and eosin staining,and the expressions of NogoA in 21a area of visual cortex were detected by immunohistochemistry with a monoclonal antiNogoA antibody.The use of the animals complied with the Regulations for the Administration of Affair Concerning Experimental Animals by State Science and Technology Commission.ResultsThe implied time and amplitude ratio of VEP P100 wave were (98.10±7.07)ms and (0.83±0.14) in normal group,and those in strabismic-induced amblyopia group were (108.50±6.95 )ms and (0.35 ±0.09 ),showing significant differences between two groups (t=4.450,P=0.005 ; t =5.970,P =0.005 ).The numbers of neurons were similar in 21a area of visual cortex between the two groups,but the volume of the neurons was lessen in strabismic-induced amblyopia group.The positive cell densities for NogoA were ( 387.37±2.01 ) cells/mm2,( 354.58± 1.85 ) cells/mm2 and ( 289.68± 1.81 ) cells/mm2 in layer Ⅱ/Ⅲ,Ⅳ and V/V[ respectively in strabismic-induced amblyopia group,and those in normal group were ( 161.39± 1.98 ) cells/mm2,( 128.93 ± 1.26 ) cells/mm2 and ( 96.25 ± 1.49 ) cells/mm2,indicating a significant increase in model cats ( t =- 160.400,- 201.890,- 164.740,P =0.000 ).Conclusions NogoA may play an important role in the regulation of the sensitive developmental period of visual sense and its plasticity.
6.Study on the connective tissue around extraocular muscle in cat
Chun-hua, SUN ; Kan-xing, ZHAO ; Jin-yong, LIN
Chinese Journal of Experimental Ophthalmology 2013;31(12):1122-1124
Background The extraocular muscles (EOMs) Pulley is considered as the functional origins of the recti EOMs,it is determinants of ocular motility.Objective The structure of the connective tissue around EOMs in cat was studied,and the role of EOMs Pulley to ocular movement was investigated.Methods Five adult cats were involved.The gross anatomy of an orbit in each cat was observed.The other orbit was processed with paraffin imbedding and coronal serial sections.A murine monocolonal antibody to α-smooth muscle actin (α-SMA) was used to show smooth muscle,while Masson trichrome stain was used to show muscle and collagen,and Weigert stain to show elastin.Results An encircling ring of collagen circled EOM was thin and connected to the orbital layer of muscle fiber loosely.Less elastin fibers and little smooth muscle cells were embedded in the collagen ring and connective band.Collagen ring around medial rectus and the connective band between medial rectus and inferior rectus was not more significantly developed than other bands.Conclusions The connective tissue around EOMs in cat may be related to its function of ocular movement,which is not developed.
7.Reversion of multidrug resistance of hepatoma cell line SMMC-7721/ADM by adriamycin-loaded immuno-nanoparticles
Heping KAN ; Yongfa TAN ; Yixiong LIN ; Chunfang LI ; Jie ZHOU
Chinese Journal of Digestive Surgery 2008;7(5):363-365
Objective To explore the effects of adriamycin-loaded immuno-nanoparticles on multidrug resistance (MDR) of hepatoma cell line SMMC-7721/ADM. Methods The cytotoxicity of the adriamycin-loaded immuno-nanoparticles on the bepatoma cell line SMMC-7721/ADM in vitro and the tumor cell-binding ability of adriamycin-loaded immuno-nanoparticles were detected. Results The effect of the cytotoxicity of adriamycin-loaded immuno-nanoparticles on the hepatoma cell line SMMC-7721/ADM was significantly better than that of adriamycin-loaded nanoparticles. Adriamycin-loaded immuno-nanoparticles had the specific binding ability with the hepatoma cell line SMMC-7721/ADM. Conclusions Adriamycin-loaded immuno-nanoparticles can overcome the MDR of the tumor in vitro. The mechanism may be that immuno-nanoparticles could adhere to the tumor cell membrane, and the release of the loaded adriamycin creates a high local concentration in the extracellular medium. The increased concentration gradient improves the diffusion of adriamycin from the extracellular medium to the intracellular medium.
8.The role of Orexin in pathogenesisepilepsy and treatment of epilepsy
Weixia YANG ; Jun ZHAO ; Fengjing SHI ; Lin KAN ; Weifang YANG
Chinese Journal of Behavioral Medicine and Brain Science 2015;24(7):669-671
Objective To explore the role of Orexin in pathogenesisepilepsy and treatment of epilepsy based on the literatures published from 1998 to 2014 at home and abroad.Methods Searched the literatures from the online database including Pubmed,CNKI and Wanfang Datebases in July 2014.The words Orexin,epilepsy,Orexin receptor,epilepsy treatment were used as search terms.Analyze the effect Orexin and its receptors in the occurrence,development and treatment of epilepsy.Results 102 related literatures were retrieved and 30 were adopted into analysis.It was showed Orexin is a kind of excitatory neuropeptides and it can increase the excitability of cerebral cortex.Epilepsy can be induced bv excessive expression of Orexin.Conclusion Excessive expression of Orexin can cause epileptic seizure.Inhibiting the excessive activation of Orexin neurons is of important to control seiznres in clinical practices.
9.Study on the clinical value of bedside ultrasound in evaluating the fluid responsiveness in patients with septic shock
Ting LI ; Yanmin KAN ; Lin MA ; Jing BAI ; Junwei ZHANG
Tianjin Medical Journal 2016;44(4):470-473
Objective To study the clinical value of bedside ultrasound in predicting the fluid responsiveness in pa?tients with septic shock in intensive care unit (ICU). Methods Forty-two mechanically ventilated patients with septic shock who admitted to ICU of the Affiliated Hospital of North China University of Science and Technology from January 2015 to April 2015 were included in this study. All patients were treated with volume expansion (VE) text. Hemodynamics in?dexes were obtained by ultrasound before and after each test, including stroke volume (SV), aortic peak blood flow velocity variation rate of breathing (△VpeakAO), inferior vena cava expansion index (△IVC) and brachial artery maximum speed vari?ation rate (△VpeakBA). Clinical data and central venous pressure (CVP) were recorded. Based on the responsiveness of SV, patients were divided into responsive group (R) and non-responsive group (NR), respectively. The differences of the above in?dexes were compared between two groups. The correlation of△IVC,△VpeakAO,△VpeakBA and△SV was determined. The role of the hemodynamic index for predicting volume responsiveness was evaluated by receiver operating characteristic ROC curves. Results A total of 47 VE tests were performed in 42 patients, 25 in R group and 22 in NR group. Before VE test, the hemodynamics indicators of△IVC,△VpeakAO and△VpeakBA were significantly higher in R group compared with those of NR group (P<0.05). The values of△IVC,△VpeakAO and△VpeakBA were positively correlated with△SV in two groups. The areas under the ROC curve of the hemodynamics indicators were 0.825, 0.853 and 0.866 for △IVC, △VpeakAO and△VpeakBA, and they all showed high sensitivity and specificity. Conclusion The hemodynamic index measured by bedside ultrasound can predict the volume responsiveness in mechanically ventilated patients with septic shock fluid therapy, and which can be used to fluid therapy with a high degree of specific and sensitivity in clinical practice.
10.Clinical Investigation of Ultrasound Prediction for Fluid Responsiveness in Patients With Septic Shock
Ting LI ; Yanmin KAN ; Lin MA ; Jing BAI ; Junwei ZHANG
Chinese Circulation Journal 2016;31(4):354-357
Objective: To investigate the ultrasound evaluation on lfuid responsiveness in patients with septic shock. Methods: There 42 septic shock patients treated by mechanical ventilation in our hospital from 2015-01 to 2015-04 were studied. All patients received volume expansion (VE) text, ultrasound examination was conducted to measure hemodynamic parameters of inferior vena cava variation rate of breathing (ΔIVC), aortic peak blood lfow velocity variation rate of breathing (ΔVpeakAO), brachial artery maximum speed variation rate (ΔVpeakBA) and stroke volume (ΔSV) at before and after text. Based on the response to VE text, the patients were divided into 2 groups as Responsive group and Non-responsive group, the above indexes and their correlations to ΔSV were analyzed. The clinical values of those parameters for predicting volume responsiveness were evaluated by ROC curves. Results: A total of 47 VE tests were conducted in 42 patients including 25 cases in Responsive group and 22 cases in Non-responsive group. Before VE test, the parameters of ΔIVC, ΔVpeakAO and ΔVpeakBA were higher in Responsive group than Non-responsive group; ΔIVC, ΔVpeakAO and ΔVpeakBA were obviously related to ΔSV (r=0.631, 0.668 and 0.619). The area of ΔIVC, ΔVpeakAO and ΔVpeakBA under ROC curves were 0.817, 0.853 and 0.866 respectively, they were all with the high sensitivity and speciifcity. Conclusion: Ultrasound monitored hemodynamic parameters may predict the volume responsiveness in septic shock patients with mechanical ventilation, it could be used for guiding liquid treatment in relevant patients.