Objective To investigate the effect of propofol on the expression of c-fos mRNA in hippocampus in rats with visceral pain (VP).Methods Thirty male Sprague-Dawley rats,weighing 180-240 g,were randomly divided into 3 groups (n =10 each):VP group,propofol 7.5 mg/kg group (group P1) and propofol 75.0 mg/kg group (group P2).0.9％ normal saline was injected intravenously via the caudal vein in group VP.Propofol 7.5 and 75.0 mg/kg were injected intravenously via the caudal vein in groups P1 and P2,respectively.VP was produced by colorectal distension in anesthetized rats.The threshold of VP was assessed by the intra-balloon pressure which was limited to 100 mm Hg to avoid damage to intestine before and after administration.The rats were sacrificed after measurement of the pain threshold,their brains were removed and hippocampi were isolated for determination of the expression of c-fos mRNA by RT-PCR.Results Compared with group VP,the threshold of VP was significantly increased and the expression of c-fos mRNA in hippocampus was down-regulated in groups P1 and P2 (P ＜ 0.05).The threshold of VP was significantly higher and the expression of c-fos mRNA in hippocampus was lower in group P2 than in group P1 (P ＜ 0.05).Conclusion Propofol can reduce VP through down-regulating the expression of c-fos mRNA in hippocampus in rats.

The mechanisms of cytotoxicity mediated by pokeweed-mitogen (PWM)-activated human peripheral blood monocytes was investigated in this study. By DNA electrophoresis and propidium iodide ( Pl) -DNA staining flow cytometry, the study demonstrated that apoptotic cell death of target U937 cells and Raji cells was induced in lectin-depen-dent monocyte-mediated cytotoxicity ( LDMC) . The LDMC-mediated DNA fragmentation in U937 cells could be completly inhibited by anti-TNF-?monoclonal antibodies McAbs, instead of the addition of monosaccharide (N-acetyl glucosamine, Glc NAC) . In contrast, Glc NAC inhibited the DNA fragmentation in Raji cells induced by PWM-monocytes while the anti-TNF-a McAbs had no effect. By flow cytometry, we also demonstrated that PWM could bind with tumor cells as well as with monocytes, at the stimulation of the production of nitric oxide ( NO-) from monocytes. This NO-production was enhanced in the presence of target cells, but the enhacement was abolished by the treatment of GlcNAc.The presence of Lectin-like receptors on the surface of monocytes and tumor cells may bring the effector target cells together, thus facilitating the induction of apoptosis in target cells by triggering the production of cytolytic factors and the modification of target cell surface antigens.

Objective:To evaluate the present situation and trend of antifungal medicines used in 34 hospitals in Wuhan area. Methods:The sales volume,market share,DDDs and DDC of antifungal medicines in 34 hospitals in Wuhan area during 2012 and 2014 were statistically analyzed. Results:The consumption sum and growth rate of the medicines were increased year by year, and those of pyrrolic medicines were the highest. The sales volume of voriconazole ranked the first. The DDDs of clotrimazole vaginal tablets and nifuratel-nysfungin suppositories ranked the top two. Conclusion:The consumption of antifungal medicines in Wuhan area has been increased greatly and the consumption structure is relatively stable. The utilization evaluation of antifungal medicines should be enhanced. Antifungal medicines should be rationally used to prevent or slow down the spread of drug resistant bacteria.

Microcirculation disturbance and ischemia of the pancreas are important pathophysiological changes in the onset of acute pancrea-titis,and organ hypoperfusion is a risk factor for poor prognosis.During the first 12 to 24 hours after admission,fluid resuscitation is the most important medical treatment for the early stage of acute pancreatitis,and timely and rational fluid infusion helps to improve prognosis. However,there lacks high -quality clinical evidence for type of fluid,infusion speed,and monitoring methods,and more randomized con-trolled trials are needed.

Humans ; Mouth Diseases ; classification ; diagnosis ; therapy ; Mouth Mucosa ; pathology ; Oral Medicine ; standards ; Reference Standards

Coronary Vessel Anomalies ; Humans ; Myocardial Bridging

Objective To explore the effect of c-Jun N-terminal kinase(JNK)on the expression of interleukin-10(IL-10) in keratinocytes induced by ultraviolet A(UVA).Methods The HaCaT cells in cultured were either sham irradiated(control) or exposured to 2.4 J/cm2 UVA radiation.The cells were collected at 0-48 h after irradiation,and JNK levels in cells were detected with the immunofluorescence.HaCaT cells were treated with SP600125(a JNK inhibitor) before irradiation,then cells and suspended medium were collected at each time-point after irradiation,and the expression of IL-10 mRNA and protein were determined by RT-PCR and ELISA.Results Compared with control cells,irradiated cells had increased levels of phospho-JNK throughout the entire 48 h following irradiation(P

Capillary zone electrophoresis (CZE) was used to monitor the whole unfolding process of bovine insulin resulted from the dithiothreitol (DTT) reduction. An off-line matrix assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS) was employed to determine the molecular weight of the reaction products at the same time to confirm the observation results obtained by CZE. The structural change during the process of bovine insulin unfolding could be observed directly from the electropherogram and information of protein unfolding could be obtained simultaneously. The results indicated that as an effective tool of monitoring the conformational change of protein,the method of CZE was simple,quick,sensitive and lower sample consumption.

OBJECTIVETo evaluate the effect of repeated sintering on the color and translucency of dental lithium disilicate-based glass ceramic.

METHODSThirty disc specimens (10 mm in diameter, and 1.00 mm ± 0.01 mm in thickness) were fabricated using an IPS e.max Press HT A2 ingot and then randomly divided into six groups (SO, S1, S2, S3, S4, and S5) (n = 5). Each group was sintered 0, 1, 2, 3, 4, and 5 times individually according to the manufacturer's recommendation. After polishing, ultrasonic cleaning, and drying, the color parameters (L*, a*, and b* values) and transmittance (τ) of all the specimens were measured using a ShadeEye NCC dental colorimeter and a TM-2 spectrophotometer, respectively. Subsequently, C*ab and ΔE were calculated. The results were statistically analyzed using SPSS 17.0 software for ANOVA and LSD.

RESULTSAfter repeated sintering, the L* value significantly decreased (P < 0.05), and the a*, b*, and C*ab values initially increased and then decreased (P < 0.05). The color parameters (L*, a*, and b*) and the C*ab values of group S3 were higher than those of the other groups. The τ values initially increased and then decreased (P < 0.05), and these values were optimal when sintered twice. In terms of transmittance (τ), statistical differences existed between the following groups: S0 and S2, S0 and S3,.S2 and S5, and S3 and S5 (P < 0.05). Compared with group S0, the color differences ΔE were 0.89 minimally and 2.01 maximally after different sintering times, which can be clinically acceptable.

CONCLUSIONRepeated sintering can affect the color and translucency of the IPS e.max Press lithium disilicate-based glass ceramic, but the color difference can be clinically acceptable.

Adult ; Calcinosis ; Humans ; Male ; Pharyngeal Diseases