Objective To explore pathological changes of optic nerve in experimental autoimmune encephalomyelitis(EAE).Methods Established the Wistar rat models of EAE by footpad injection of guinea pig spinal cord homogenates and CFA.Animals were executed 6 days after disease onset,and optic nerves,brains and spinal cords were removed for light(HE staining and LFB staining) and electron microscope pathological analysis.Results Various degrees of inflammation and demyelination of brains and spinal cords were found in the rats of EAE group.All the EAE rats had optic neuropathy mainly manifested as inflammation and demyelination under light microscope.Demyelination changes were more apparente than inflammation in optic nerves.Electron microscope observes decreased number of myelin sheaths and Oligodendrocytes(OLGs),OLGs karyopycnosis and the loosed myelin sheaths and their disassociation from axons were also found nearby.Conclusions Optic neuropathy is obvious in this rat model of EAE,mainly manifested as optic inflammation and demyelination.

Aim To establish a reliable and practical rat model with hypertension induced by DOCA-Salt.Methods One week after nephrectomy,the rats were subcutaneously injected with DOCA (30 mg?kg-1) once a week and fed with a chaw with 10 g?L-1NaCl plus 2 g?L-1 KCl in drinking water for 4 weeks. Blood pressure was measured and,urine was collected for measurement of volume(UV),UNaV,UClV,UKV,UCaV and pH values,once a week. SGPT,CREA,SUGA,TRIG,CHOL,INS,ALD,ADH were measured in circulating blood samples. Kidney morphological changes and Na+,K+-ATPase activity of the renal tubular epithelial cells were also examined. Results Blood pressure,UV,UNaV and UClV were increased and histopathological changes of the kidney such as glomerulus sclerosis and tubular pachynsis were observed in the DOCA-Salt rats. Whereas UKV,UCaV,urine pH values,SGPT,CREA,SUGA,TRIG,CHOL,INS,ALD and ADH were not changed. In contrast,Na+,K+-ATPase activity of the renal tubular epithelial cells was decreased. Conclusion DOCA-Salt is a reliable hypertensive model with sodium retention.

OBJECTIVE:To prepare the inclusion complex capsules of actarit-HP-?-CD and investigate their dissolution rate.METHODS:The inclusion complex was prepared by the stirring method with its dissolution rate investigated.The inclusion complex capsules were prepared with fillers consisted of starch,microcrystalline cellulose,lactose and calcium sulphate.The dissolution rate of the capsules was investigated by basket-stirring method and compared with those of the pure material and the physical mixture.RESULTS:Compared with pure material and physical mixture,the inclusion complex had significant lower value of Td(P

Objective To explore the clinical causes and preventive measures of complicating ascites of mini-percutaneous nephrolithotripsy (MPCNL).Methods Retrospective analysis of 285 patients with MPCNL for upper urinary tract calculus,which were divided into ascites group and no-ascites group.Results All the procedures were successful.Ascites group of 21 cases,no-ascites group of 264 cases.Univariate analysis showed that the diameter and number of calculus,perfusion pressure,perfusion time,pressure volume of irrigation fluid,preoperative upper urinary tract infection,history of treatment associated with complicating ascites (P＜ 0.05),with age,gender,body mass index no correlation (P＞ 0.05).Logistic regression analysis showed that perfusion pressure,perfusion time,pressure volume of irrigation fluid was independent risk factors after MPCNL concurrent ascites (P ＜ 0.05).Conclusions MPCNL concurrent ascites are closely related to the large perfusion volume,the long operative perfusion time,the high perfusion pressure of irrigation fluid.On the premise of keeping the operative visual field clear,as far as possible to reduce the perfusion pressure,control irrigation fluid-flow rate,reduce the large peffusion volume.These could decrease the coincidence of the ascites.

Background Small incision cataract surgery combined with intraocular lens (IOL) implantation remains a popular way for cataract.However,some factors affect the postsurgical visual outcomes and lower the patients' satisfaction,including intraoperative and postoperative complications as well as corneal refractive and thickness changes.Objective This study was to evaluate the influence of corneal refractive and thickness changes on visual fluctuation after 2.6 mm temporal incision surgery for cataract.Methods A series cases-observational study was designed.Twenty-nine eyes of 25 age-related cataract patients received 2.6 mm temporal transparent incision phacoemulsification and IOL implantation from November,2011 through April,2012 in Eye & ENT Hospital of Fudan University under the informed consent.The uncorrected visual acuity (UCVA),best corrected visual acuity (BCVA),automatic and subjective refraction were examined,and the central corneal thickness (CCT) and corneal vector astigmatism were measured using Pentacam analysis system before and after operation.The examination outcomes were compared among different time points,and the influencing factors of UCVA or BCVA were analyzed.Results The mean UCVA (LogMAR) was 0.52±0.06 in 1 day and 0.64±0.07 in 2 months after surgery,with a significant difference between them (t=-3.051,P＜0.05).The mean BCVA (LogMAR) was 0.24±0.04 and 0.13± 0.04 in postoperative 1 day and 2 months,showing a significant difference between them (t =-3.031,P＜0.05).Spherical equivalents (SE) were (-1.74±0.28) D,(-1.99±0.27) D and (-1.69±0.24) D in postoperative 1 day,14 days and 60 days,respectively,with a significant difference among the 3 time points (F =3.562,P =0.039),and significant difference also was found between postoperative 1 day and 14 days (t =2.515,P＜0.05) or between postoperative 14 days and 60 days (t =-2.987,P ＜ 0.05).The preoperative J0 value was (0.06 ± 0.06) D,and postoperative J0 value was (0.29±0.08) D on the first day,which was significant higher than that in preoperation (t =-4.625,P＜0.01).In addition,J0 value showed a significant difference between postoperative 1 day and 14 days (t=-7.858,P＜0.01) as well as between postoperative 14 days and 2 months ([0.38±0.07] D versus [0.27±0.07] D,t=-5.649,P＜0.01).The mean CCT was (547.1±25.3) μm,(599.4±56.9) μm,(557.0±27.1) μm and (551.0 ± 25.9) μm before and 1 day,14 and 60 days after operation,with significant differences among the various time points (F =9.792,P ＜ 0.001),and significant differences also were seen in the CCT between preoperation and postoperative 1 day (t =-5.116,P＜0.01),between postoperative 1 day and 14 days (t =4.135,P＜ 0.01),between postoperative 14 days and 60 days (t=2.082,P＜0.05).UCVA=0.513-1.183×C J45(F=16.724;t=-4.089,P=0.026) and BCVA=-1.314+0.003×CCT (F=22.322;t=4.725,P=0.018).Conclusions The UCVA remains a downward trend,and BCVA sustains upward trend after 2.6 mm temporal transparent incision phacoemulsification combined with IOL implantation surgery.Postoperative UCVA is affected by corneal astigmatism change,while BCVA is influenced by CCT change.

Objective To investigate the effect of calcipotriol on melanin synthesis by human melanocytes and its possible action mechanism.Methods Primary melanocytes were cultured with various concentrations(10~(-5),10~(-6),10~(-7),10~(-8),10~(-9),10~(-10) mol/L)of calcipotriol for 24 or 48 hours.Subsequently,MTT assay,NaoH assay.Dopa-oxidase assay,Western blot and semiquantitative RT-PCR were used to measure the cell proliferation of,melanin synthesis by.tyrosinase activity,protein and mRNA expression levels in the melanocytes.respectively.Those untreated melanocytes served as the control.Results The calcipotriol between 10~(-9) and 10~(-5) mol/L had no significant effect on the proliferation of cultured melanocytes(P＞0.05).while that of 10~(-9) and 10~(-8) mol/L increased tyrosinase activity by 137%and 123%,and enhanced melanin synthesis by 40.63%and 18.75%,respectively,compamd with untreated melanocytes(both P＜0.05).Moreover,the tyrosinase protein level increased by 270.4%(P＜0.05)in melanocytes treated with calcipotriol at 10~(-9) mol/L for 24 hours.The strongest tyrosinase activity and melanin synthesis was observed in melanocytes treated with calcipotriol of 10~(-9) moI/L.Conclusions The proliferation of melanocytes is unaffected by calcipotriol at 10~(-9) to 10~(-5) mol/L,but it can elevate the expression of tyrosinase protein,enhance tyrosinase activity,and promote melanin synthesis in melanocytes.

Objective To evaluate the role of spinal sigma-1 receptors in the maintenance of bone cancer pain (BCP) in rats and the relationship with extracellular signal-regulated kinase (ERK).Methods Part Ⅰ Twenty-four female Sprague-Dawley rats,weighing 180-220 g,were randomized into 2 groups using a random number table:sham operation group (S group,n =4) and BCP group (n =20).BCP was induced by inoculating Walker 256 mammary gland carcinoma cells into the medullary cavity of the right tibia.Four rats were sacrificed on day 10 after inoculation in S group or on day 3,5,7,10 and 14 after inoculation in BCP group,and the L4-6 segments of the spinal cord were removed to measure the expression of sigma-1 receptors by Western blot.Part Ⅱ Forty female Sprague-Dawley rats,weighing 180-220 g,were randomized into 4 groups (n =10 each) using a random number table:sham operation group (S group),sigma-1 receptor inhibitor BD1047 group (BD group),BCP group,and BCP + BD1047 group (BCP + BD group).On day 10 to 14 after inoculation,normal saline 20 μl was injected intrathecally once a day in S and BCP groups,or BD1047 120 nmol/20μl was injected intrathecally once a day in BD and BCP + BD groups.Mechanical paw withdrawal threshold (MWT) to yon Frey filament stimulation was measured one day before inoculation,on day 3,5 and 7 after inoculation,and on day 10,12 and 14 after administration.After measurement of MWT on day 14 after inoculation,the rats were sacrificed and the L4-6 segments of the spinal cord were removed to determine the expression of phosphorylated ERK (p-ERK) by Western blot.Results Part Ⅰ Compared with group S,the expression of sigma-1 was significantly up-regulated and peaked on day 10 after operation in group BCP.Part Ⅱ Compared with S group,no significant changes were found in MWT and p-ERK expression at each time point in BD group,and MWT was decreased and p-ERK expression was up-regulated in BCP and BCP + BD groups.Compared with group BCP,after intrathecal injection of BD1047,MWT was significantly increased and the expression of p-ERK was down-regulated in BCP + BD group.Conclusion Spinal sigma-1 receptors are involved in the maintenance of BCP in rats possibly through promoting phosphorylation of ERK.

AIM:To investigate the role of damaged mitochondria in dendritic cell ( DC) apoptosis induced by Vibrio vulnificus (Vv) and its possible mechanism.METHODS: DC2.4 cells were co-cultured with Vv 1.1758 strain. Fluorescent probes DCFH-DA and Fluo-8-AM were used to detect reactive oxygen species ( ROS) and intracellular Ca 2+concentration in the invaded cells , respectively .The cellular apoptotic rates and mitochondrial membrane potential (Δψm ) were measured by flow cytometry.The expression of nuclear factor-kappa B p65 (NF-κB p65) and tumor necrosis factor-al-pha (TNF-α) was detected by Western blotting.RESULTS:Vv 1.1758 induced DC2.4 cell apoptosis.Vv 1.1758 bacte-ria invaded into the DC2.4 cells by binding with cellular membrane though the end of the body .In the invaded DC2.4 cells, the visible mitochondrial damage, elevated ROS and intracellular Ca2+levels, and declinedΔψm were presented.Af-ter 1 h of co-culture, NF-κB p65 began to rise and reached the peak at 5 h, and then slightly decreased at 6 h.The TNF-αlevel increased after 2 h of co-culture and reached the peak at 6 h.CONCLUSION:The damaged mitochondria play an important role in DC apoptosis induced by Vv , and its possible mechanism may associate with the elevation of ROS and in-tracellular Ca2+level, and the declined Δψm.Meanwhile, NF-κB p65 and TNF-αare potential critical signaling molecules in the process of apoptosis .

目的探讨系统功能训练对老年人工全膝关节置换(TKR)术后康复的效果观察。方法接受TKR老年患者21例36膝,入院后随机分A、B两组,A组实施系统功能训练,B组采用骨科常规护理。采用美国特种外科医院(HSS)膝关节评分标准在术前及术后3周末对A、B两组进行膝关节评分。结果两组患者TKR术后膝关节评分有显著差异(P<0.05)。结论系统功能训练有利于促进老年TKR术后康复。

This article was aimed to study the physiological mechanisms in frozen storage to reduce early bolting of Angelica sinensis. By analyzing the root soluble sugar, soluble protein, MDA content changes before and after -10oC processing of the Angelica sinensis seedlings of different size from different sources , the physiological mechanisms in frozen storage reducing early bolting of A . sinensis had been studied. The results indicated that the greater seedlings , the higher content of soluble sugar , lower protein content and higher MDA . There were no obvious differences on the soluble sugar , soluble protein and MDA content of the same size seedlings from different sources . After -10oC freezing , the content of soluble sugar and protein in the seedlings with the same size were decreased. Meanwhile, the content of MDA was increased. It was concluded that the content of soluble sugar, soluble protein and MDA were obviously related to the size of Angelica sinensis seedlings from the same source before and after low temperature process .