1.Ultrasound - guided sclerosing therapy with injection of lauromacrogol for pelvic encapsulated hydrops:preliminary experience in 40 cases
Xin HE ; Zhongyang WANG ; Ming YIN
Journal of Interventional Radiology 2014;(6):503-505
Objective To investigate the clinical effect of ultrasound-guided sclerosing therapy with injection of lauromacrogol for the treatment of pelvic encapsulated hydrops. Methods A total of 40 patients with pelvic encapsulated hydrops were enrolled in this study. Under ultrasonographic guidance , puncture aspiration of pelvic encapsulated hydrops was carried out in all patients , which was followed by lauromacrogol injection of appropriate dose, and the drainage catheter was kept in the hydrops cavity. The clinical results were evaluated at one, 2 and 3 months after the treatment. Results The success rate of puncturing was 100%. Six months after the treatment, the complete cure was obtained in 86.4%of patients, and the effective rate was 100%. Conclusion For the treatment of pelvic encapsulated hydrops , ultrasound-guided sclerosing therapy with injection of lauromacrogol is effective and safe with instant result and lower recurrence rate. Therefore, this technique should be recommended in clinical practice.
2.DETECTION OF IgM ANTIBODY WITH RECOMBINANT ANTIGEN rSAG1 FOR TOXOPLASMOSIS DIAGNOSIS
Yongfei TAN ; Xin YIN ; Junming TANG ; Jin SI ; Ming XU ; Xuren YIN ; Guoqun CAO ; Yousheng LIANG ; Yinchan ZHU
Chinese Journal of Schistosomiasis Control 1989;0(02):-
Objective To establish rSAG1-IgM-ELISA with purified rSAG1 fusion protein for immunodiagnosis of toxoplasmosis. Methods The rSAG1 fusion protein was purified by Ni 2+ column. The ELISA plate was coated with different concentrations of rSAG1, reacted with pooled positive and negtive human sera. Goat anti-human IgM conjugated to horseradish peroxidase was used as the second antibody. The appropriate detecting condition of the rSAG1-IgM-ELISA assay was determined by orthogonal experiment. The reproducibility, sensitivity and specificity of the assay were assessed. Thirty-five IgM-positive and 57 IgM-negative human sera detected by the imported IgM-ELISA kit were detected with the rSAG1-IgM-ELISA. Results The purity of rSAG1 was above 90%. The appropriate detecting condition was that the coated rSAG1 was 2 5 ?g/ml, the human serum was in 1∶100 dilution, and the second antibody was in 1∶4000 dilution. The coefficient of variation (CV) value of IgM-positive and IgM-negative pooled sera were 13 8% and 7 7% respectively. The inhibition rate of the assay was 62 0% The positive correspondence rate and negative correspondence rate were 82 9% (29/35) and 91 2% (52/57) respectively,the total correspondence rate was 88 0%, compared with the imported IgM-ELISA kit. Conclusions The rSAG1-IgM-ELISA has high sensitivity and specificity, and good correspondence rate with the imported IgM-ELISA kit. It indicates that rSAG1-IgM-ELISA has potential value for early diagnosis of toxoplasmosis.
3.Increased ostial pulmonary vein diameter in congestive heart failure: a multi-slice computed tomography angiography evaluation
Lei GAO ; Xihai ZHAO ; Xin LIU ; Caiyi LU ; Ming YIN ; Yuxiao ZHANG ; Yi WEN ; Shiwen WANG
Journal of Geriatric Cardiology 2006;3(1):45-50
Background and Objectives The relationship between left atrial (LA) size and congestive heart failure (CHF) is well recognized;however, there is little information on the association of pulmonary vein (PV) diameter and CHF.The purpose of this study was to investigate the changes of PV and LA sizes in CHF patients by multislice computed tomography (MSCT) angiography using a new 64-slice scanner. Methods and Results We assessed diameters of PVs ostium and LA by 64-slice MSCT with three-dimensional reconstruction in 25 CHF patients and in 26 age- and sex-matched non-CHF controls. Compared with controls, CHF patients showed significant greater diameters of left superior pulmonary vein (LSPV) and right inferior pulmonary vein (RIPV) in both anteriorposterior(AP) and superior-inferior (SI) directions (P<0.01), significant dilation of right superior pulmonary vein (RSPV) in AP direction (P<0.05), as well as significant increase of LA transverse, AP, and SI diameters (P<0.01). Conclusion Significant dilation of PVs with simultaneous LA enlargement was demonstrated in CHF patients. This anatomic and geometric changes may participate in the perpetuation of AF.
4.Discussion on needling manipulation of Chifeng Yingyuan.
Xin-yin XU ; Tao QU ; Xiao-ming ZHANG ; Chang-zheng WU
Chinese Acupuncture & Moxibustion 2014;34(9):884-886
Regarding the needling manipulation, Chifeng Yingyuan, there are different descriptions in ancient medical literature and the current teaching materials or clinical reports, especially for the understanding recorded in Jinzhenfu Poem of Golden Needle). In the current teaching materials and clinical reports, it is described that the needle is inserted deeply at first, and then shallowly; afterward, the needle tip is pushed to the middle layer and manipulated with lifting, thrusting and rotating technique, combined with twisting and flying method. After analyzing the original description in the book and the feasibility of function and operation, the authors introduced their recognition on its manipulation and techniques in this article. This manipulation should be: the needle is inserted to the middle layer, afterward, the needle body is pulled and tilted toward each of the four directions, on this basis, then twisting and flying method is applied.
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5.Exploration on the Research-oriented Teaching Reform of Microbiology
Yue-Lan YIN ; Xin-An JIAO ; Zhi-Ming PAN ; Lin SUN ; Jin-Lin HUANG ; Xiang CHEN ;
Microbiology 2008;0(12):-
This paper is discussed about course system construction of Microbiology, teaching method, in- struction means and experimental teaching mode. Teaching practice indicated that reform the pattern of Mi- crobiology educational mode can stimulate students’ interest in studying the course, cultivate their inde- pendent ability to solve questions, develop their creative thinking. It is an important way to train high-caliber talents.
6.The role of T-type calcium channel in the pathogenesis of neuropathic pain in rats
Zhi-Xin CHEN ; Yin-Ming ZENG ; Jun-Ke WANG ; Xianjie WEN ;
Chinese Journal of Anesthesiology 1994;0(01):-
Objective To investigate the effect of intrathecal(IT)mibefradil on the mechanical and thermal hyperalgesia following chronic compression of dorsal mot ganglion(CCD)in rats,trying to elucidate the role of T-type calcium channels in the nociceptive signal transmission at spinal level.Methods Forty-eight male SD rats weighing 230-250 g were randomly divided into 6 groups(n=8 each):group Ⅰ sham operation;group Ⅱ CCD;group Ⅲ CCD+normal saline(N.S.)and group Ⅳ,Ⅴ,Ⅵ CCD+mibefradil 50 ?g(Ⅳ),100 ?g (Ⅴ),200 ?g(Ⅵ).The animals were anesthetized with intraperitoneal(IP)1% pentobarbital 40 mg?kg~(-1). Intrathecal catheter was placed according to the technique described by Yaksh et al.Five days after IT catheter placement L_4 and I_5 dorsal root ganglion(DRG)compression(CCD)was performed in group Ⅱ-Ⅵ.In sham operation group(Ⅰ)only L_(4-5) transverse processes and intervertebral foramina were exposed but DRGs were not compressed.In group Ⅳ,Ⅴ,and Ⅵ 5 days after CCD model was established a bolus of mibefradil 50,100 and 200 ?g in 10 ?l NS was given IT.In group Ⅲ NS 10 ?l was given IT instead of mibefradil.Mechanical withdrawal threshold(MWT)using Von Frey filament and thermal withdrawal latency(TWL)using radiant heat applied to the plantar surface were measured before CCD(baseline)and 1,3,5,7,14 and 21 days after CCD in group Ⅰ and Ⅱ and before and 30,60,120,240 and 480 min after IT mibefradil in group Ⅲ-Ⅵ.Results The animals in group Ⅱ(CCD group)developed mechanical and thermal hyperalgesia from the 1st day after operation to the end of the experiment.IT mibefradil 50,100 and 200 ?g can all attenuate both mechanical and thermal hyperalgesia induced by CCD.Conclusion Spinal T-type calcium channel may play an important role in the pathogenesis of neuropathic pain.
7.Ex-press glaucoma shunt with adjunctive amniotic membrane and mitomycin C for post-traumatic glaucoma
Nv-Xia, TONG ; Jin-Fu, YIN ; Xiu-Ming, JIN ; Xin, XIE
International Eye Science 2017;17(8):1399-1403
AIM: To evaluate intraocular pressure (IOP) control and visual rehabilitation after placement of the Ex-press(R)miniature glaucoma shunt with adjunctive amniotic membrane transplantation (AMT) and mitomycin C (MMC) in patients with post-traumatic open-angle glaucoma during 2y of follow up.METHODS: This was an interventional,2-year,observational study.Eighteen eyes were prospectively observed (in 18 patients with traumatic secondary open-angle glaucoma) in which Ex-press miniature glaucoma filtration shunts were implanted with AMT and MMC.The outcome measures included intraocular pressure (IOP),best corrected visual acuity (BCVA),number of antiglaucoma medications,and complications.The progress of all patients was monitored for 24mo.RESULTS: Complete success (IOP <21 mmHg without glaucoma medications) was seen in 15 of the 17 (88.2%) eyes enrolled in the study at 24mo after the operation.IOP decreased from 36.9±4.8 mmHg preoperatively to 15.4±3.5 mmHg at 12mo and 15.5±3.5 mmHg at 24mo postoperatively.Early postoperative hypertension developed in two patients (11.1%) due to postoperative fibrosis.Most of the patients had improved postoperative BCVA values at the final follow-up visit compared to their preoperative measurements.Two patients (11.1%) developed transient hypotony.There were no complications such as hyphema,choroidal effusion,shallow anterior chamber,the device touching the iris,or extrusion of the device.CONCLUSION: The Ex-press miniature glaucoma filtration shunt with adjunctive AMT and MMC is effective and safe in cases of traumatic open-angle glaucoma.Surgical management is an appropriate surgical treatment in this series of cases.
8.The study of multivoxel 1 H-MRS in detection of different hippocampal regions of Alzheimer’s disease
Fei CHEN ; Bing ZHANG ; Yun XU ; Xin ZHANG ; Zhenyu YIN ; Ming LI ; Huiting WANG ; Bin ZHU
Journal of Practical Radiology 2014;(4):552-556,579
Objective To investigate the metabolic changes and the metabolites distribution of different hippocampal regions (head,body and tail)in patients with Alzheimer’s disease (AD)using 1 H-MRS for early diagnosis.Methods The hippocampal multivoxel 1H-MRS at 3.0 T was scanned in 30 patients with AD and other 30 normal cognitive elders (NC)as contrast.The data obtained were processed at a workstation.The hippocampus was divided into 3 parts (head,body and tail),and the ratios of N-acetylaspartate (NAA)/creatine (Cr),myoinositol (MI)/Cr and MI/NAA were calculated respectively.The metabolite ratios and distribution changes were compared between group AD and NC.Results Compared with the group NC,the NAA/Cr in group AD in bilateral hippocampal body and tail was decreased,whereas the MI/Cr and MI/NAA in bilateral body and tail,MI/NAA in left head were opposite (P<0.01).In group NC,the NAA/Cr was gradually decreased from the bilateral hippocampal heads to tails (P<0.01),however,the MI/NAA was opposite (P<0.01).No distribution differences in every metabolic ratios of bilateral hippocam-pus were found in AD group (P>0.05).Conclusion Metabolic changes and disappearance of the normal distribution in different hippocampal regions detected by 1 H-MRS provide helpful clues for early diagnosis of the AD.
9.The inhibitory effect of ozanimod on the growth and biofilm formation of Staphylococcus aureus
LIU Xiao-ming ; ZHANG Chao-qin ; XIAO Xiao-yin ; YU Zhi-jian ; ZHENG Jin-xin
China Tropical Medicine 2022;22(09):797-
Abstract: Objective To screening new compounds that can inhibit the growth and biofilm formation of Staphylococcus aureus. Methods Compounds that can inhibit the growth of Staphylococcus aureus were screened from the FDA approved drug library by 96 well plates. The absorbance value of 600 nm wavelength (OD600) was measured by Microplate Reader to detect the growth of Staphylococcus aureus planktonic cells in the culture supernatant. The minimum inhibitory concentration (MIC) of ozanimod against Staphylococcus aureus clinical isolates were detected by micro broth dilution method. The inhibitory effect of sub-inhibitory concentrations of ozanimod on the biofilm formation of Staphylococcus aureus was detected by crystal violet staining. Results This study found that ozanimod could significantly inhibit the growth of Staphylococcus aureus SA113 (screening reference strain), and the MIC was 25.00 μmol/L. The MIC of ozanimod against 119 clinical isolates of Staphylococcus aureus [65 isolates of methicillin sensitive (MSSA) and 54 isolates of methicillin resistant (MRSA)] was 12.50 or 25.00 μmol/L. The MIC50 and MIC90 of ozanimod against the 119 Staphylococcus aureus isolates all were 25.00 μmol/L. This study found that 6.25, 12.50, 25.00 μmol/L of ozanimod could significantly inhibit the biofilm formation of 2 MSSA and 2 MRSA. The sub-MIC concentration of ozanimod (12.50 μmol/L) could significantly inhibit the biofilm formation of 14 MSSA and 11 MRSA, but had no inhibitory effect on the growth of planktonic cells of these Staphylococcus aureus isolates. Conclusion Ozanimod can inhibit the growth of Staphylococcus aureus, including MRSA, and has good antibacterial activity. The sub-MIC concentration of ozanimod could significantly inhibit the biofilm formation of Staphylococcus aureus.
10.Studies on Stability of Microbial Flocculant and Its Application to Municipal Thickened Sludge Dewatering
Na ZHANG ; Hua YIN ; Hua-Ming QIN ; Hui PENG ; Jin-Shao YE ; Xin-Xin ZHAO ; Bao-Yan HE ;
Microbiology 1992;0(05):-
The stability of microbial flocculant (MBF) produced by Aspergillus sojae and its application to municipal thickened sludge dewatering were studied. The results showed that the MBF had high heat and acid-base endurance with high flocculating activity in a wide range of pH from 1.5 to 12. The MBF retained 96% of flocculating activity after 35 days preservation at 4℃, but in different pH the flocculating activity difference was very apparent after 35 days store at room temperature. The experimental results also demon- strated that the MBF was better than PAM and PAC in reducing specific resistance filtration. The optimal dose of MBF used for intensifying thickened sludge dewatering is 7%(volume fraction). And the more the volume of sludge is treated, the less the cost of MBF for unit volume sludge treatment.