Objective To investigate the presentation and radiologic findings of acute marchiafava‐bignami disease(MBD) . Methods Three cases of acute MBD who were diagnosed and treated in our hospital were retrospectively analyzed ,including the clinical symptoms ,laboratory tests ,imaging examination(such as cranial CT ,magnetic resonance imaging(MRI) ,prognosis .Results Three cases were acute onset .The symptoms may be non‐specific ,such as consciousness disorder ,psychosis ,seizures ,delirium tremor and high fever .The imaging changes in the genu and splenium of corpus callosum could be found ,even in the bihemispheric white matter of all cases .CT revealed low‐density areas ,meanwhile MRI showed iso‐or hypo‐intensity on T1WI and ADC ,hyper‐in‐tensity on T2WI and fluid attenuated inversion recovery and restricted diffusion weighted imaging .The lesions involved in bihemi‐spheric brachium pontis in one case and in the body of corpus callosum in another case .Conclusion Acute MBD may present with various clinical forms ,but have characteristic imaging findings .

Acupuncture Therapy ; Adult ; Aged ; Diabetic Retinopathy ; therapy ; Female ; Humans ; Middle Aged ; Retinal Hemorrhage ; therapy

Objective To investigate the expressions and significances of GATA-3 and Th2 cytokines in asthmatic mice.Methods Sixteen BALB/c mice were randomly divided into control group and asthmatic group.The pathological changes in trachial and pulmonary tissue were observed with HE staining method.The GATA-3 mRNA expression in pulmonary tissue was messured with reverse transcription polymerase chain reaction(RT-PCR).And the IL-5,IL-13 proteins in pulmonary tissue were detected with enzyme linked immunosorbent assay(ELISA).Results HE staining showed infiltration of a great deal of inflammatory cells around the bronchial wall in asthmatic group,while there was no obvious infiltration in control group;Compared with control group,the expressions of GATA-3 mRNA and IL-5,IL-13 protein in pulmonary tissue increased significantly(Pa

Objective:To investigate the molecular interaction between non-structural protein 3 serine protease of hepatitis C virus(HCV)and wild type P53,and to lay the basis for elucidating the mechanism of oncogenesis of hepatocellular carcinoma(HCC)after infection of HCV.Methods:The recombinant plasmids,pGAD424-NS3,pGAD424-NS315aa- and pGAD424-NS330aa-,were constructed and the interaction between NS3 serine protease and its cofactor NS4A,the interaction between wild type P53 and NS3 serine protease and its N-truncated mutants were dectected qualitatively and quantitatively in yeast two-hybrid system.Results:The results indicated that interaction existed not only between full-length NS3 serine protease and P53,but also between N-truncated mutants of NS3 serine protease and P53.Furthermore,the difference between enzyme activity unit(IU)of β-gal induced by these interactions was not significant(P>0.05).Conclusions:NS3 serine protease of hepatitis C virus and its N-truncated mutants can interact with wild type P53,and the region of NS3 serine protease involved in the interaction may be located in its C-terminal,but not in its N-terminal.

Une new flavonoids named as notabilisin K (1), together with four known compounds, morusin (2), mulberrofuran A (3), neocyclomorusin (4) and mornigrol F (5) are separated from 95% ethanol extracts of the twigs of Morus notabilis. Compounds 2-5 are separated from this plant for the first time. Notabilisin I, notabilisin J exhibits certain effect against cells of HCT-116, HepG2 and A2780 with IC50 values ranging from 1.47 μmol x L(-1) to 5.46 μmol x L(-1). Morusin exhibits strong effect against five kinds of human cancer cells (BGC823, A2780, HCT-116, HepG2 and NCI-H1650) with IC50 values ranging from 0.74 μmol x L(-1) to 1.58 μmol x L(-1).
Antineoplastic Agents, Phytogenic ; chemistry ; Benzofurans ; chemistry ; Flavonoids ; chemistry ; Hep G2 Cells ; Humans ; Inhibitory Concentration 50 ; Morus ; chemistry ; Plant Extracts ; chemistry ; Terpenes ; chemistry

?AIM: To investigate the changes of nearwork induced transient myopia ( NITM ) in different refractive status after continuous near tasking.?METHODS:Prospective study. Thirty subjects ( aged 18-24, average 20. 9 ± 2. 1, 12 males and 18 females) were recruited in this study. They were divided into 3 groups according to the subjective refraction: 10 with hyperopia (H), 10 with emmetrope (E) and 10 with myopia (M). All the subjects with soft contact lens watched videos on a panel computer at near distance (33cm ~ 40cm). Five measurements of distance refraction in the right eye were performed by using an infrared optometer before, after 30min and 60min sustained viewing task, and the mean of 5 refractive values was recorded as spherical equivalent. Then distance refraction of right eyes was done every 5s followed by stopping near tasking until NITM was disappeared completely and the decay time of NITM was recorded for each subject. The value of NITM was the difference of refractive values between before and after near tasking. Paired-t test was used to compare the changes of refractive values in the same group. ANOVA was used to determine the differences of NITM and its decaying time among three groups.?RESULTS: Compared with pre - task, no significant refractive changes were found in hyperopic group ( t =1. 627,P= 0. 138 ); While subjects with emmetropia and myopia showed more myopic shifts at the two time points (tE = 2. 699, PE = 0. 024;tM = 4. 930, PM = 0. 001 ). With continuous viewing until the 30th min and 60th min, significant differences of averaged NITM were found between myopic group and other 2 groups (P<0. 05), but no difference was found between hyperopic group and emmetropic group (P>0. 05). Significant differences of the decay time of NITM can be seen among the three groups after near tasking (F=787. 983,P<0. 001).? CONCLUSION: Subjects with myopia are more susceptible to produce NITM than other 2 groups during sustained nearwork for the same time and the decaying time of NITM is longer in myopia group after near tasking, thus it is suggesting that NITM might be attributed to the development and progression of myopia.

To study the relation between drug release and the drug status within curcumin-loaded microsphere, SPG (shirasu porous glass) membrane emulsification was used to prepare the curcumin-PLGA (polylactic-co-glycolic acid) microspheres with three levels of drug loading respectively, and the in vitro release was studied with high-performance liquid chromatography (HPLC). The morphology of microspheres was observed with scanning electron microscopy (SEM), and the drug status was studied with X-ray diffraction (XRD), differential scanning calorimetry (DSC) and infrared analysis (IR). The drug loading of microspheres was (5.85 ± 0.21)%, (11.71 ± 0.39)%, (15.41 ± 0.40)%, respectively. No chemical connection was found between curcumin and PLGA. According to the results of XRD, curcumin dispersed in PLGA as amorphous form within the microspheres of the lowest drug loading, while (2.12 ± 0.64)% and (5.66 ± 0.07)% curcumin crystals was detected in the other two kinds of microspheres, respectively, indicating that the drug status was different within three kinds of microspheres. In the data analysis, we found that PLGA had a limited capacity of dissolving curcumin. When the drug loading exceeded the limit, the excess curcumin would exist in the form of crystals in microspheres independently. Meanwhile, this factor contributes to the difference in drug release behavior of the three groups of microspheres.
Calorimetry, Differential Scanning ; Curcumin ; chemistry ; Drug Liberation ; Lactic Acid ; Microscopy, Electron, Scanning ; Microspheres ; Polyglycolic Acid ; X-Ray Diffraction

Objective To evaluate the effect of sedation with midazolam combined with propofol on delirium in mechanically ventilated patients in the intensive care unit (ICU).Methods Five hundred and twenty-two patients who required sedation and analgesia,endotracheal intubation and mechanical ventilation used to assist respiration,aged 28-64 yr,weighing 41-82 kg,were randomized into 2 groups according to the sedation protocols during therapy:sedation with midazolam group (group M,n =240) and sedation with midazolam + propofol group (group MP,n=232).In M and MP groups,sedation was induced with midazolam infusion 0.03-0.17 mg/min,and analgesia was induced with sufentanil infusion 0.07-0.14 μg/min.In group MP,when hemodynamics was stable,pressure support was 8-10 cmH2O,tidal volume＞400 ml,RR ＜25 bpm,and FiO2＜45％,sedation was induced with propofol infusion 0.8-2.0 mg/min instead,lasting for 12-24 h.Richmond Agitation Sedation Scale score was maintained at-1 to-2 during vcntilation.The development and duration of delirium were recorded.Delirium was divided into hyperactive delirium,hypoactive delirium and mixed delirium 3 subtypes,and the development and duration of the 3 subtypes of delirium were also recorded.Results There was no significant difference between the two groups in the incidence and duration of delirium.Compared to group M,the incidence of hyperactive delirium was significantly decreased,and no significant change was found in the incidence of hypoactive delirium and mixed delirium and the duration of the 3 subtypes of delirium in group MP.Conclusion Sedation with midazolam and propofol can decrease the development of hyperactive delirium,but can not shorten the duration of delirium in mechanically ventilated patients in the ICU.

Objective To explore a space craft precooling temperature at which excessive thermal stress on the crew member could be prevented or reduced in an overheated launch or reentry module. Method Five young male volunteers wearing a space suit participated in 25 tests at sea level.The space suit was either ventilated in a volume air flow rate of 100 L/min (STPD) with ambient air at temperatures (Ta) of 15℃,10℃,and 5℃,respectively,or not ventilated. Rectal (Tr),mean skin (Tsk) and mean body (Tb) temperatures were measured. Result At Ta 15℃,Tr decreased without significance (from 37.0±0.2℃to 36.7±0.3℃) in 120-min tests,whereas Tsk and Tb decreased significantly,and subjects had local cold strain whether the space suit was ventilated or not; while at Ta 10℃,Tr decreased from 37.0±0.3℃ to 36.3±0.3℃(P<0.05),subjects had a whole body cold strain,and both Tsk and Tb dropped continuously and significantly. Conclusion Ambient temperature 15℃,at which the thermal comfort states of crew was not significantly degraded,was acceptable after precooling in a space craft.

A comprehensive analysis was conducted on resources composition of Chinese Herbs Sang (Morus sp.) in Sichuan using survey data and related literature. The original plants, germplasm collections, cultivation areas, main cultivated varieties and production sale of crude drugs of Sang in Sichuan were clearly expounded. Strategies for development and utilization of Sichuan mulberry resources were suggested.
Biotechnology ; China ; Conservation of Natural Resources ; methods ; Gardening ; methods ; Morus ; growth & development ; Plants, Medicinal ; growth & development