Objective To determine the effect of pnehyclidine hydrochloride as anticholinergic drug during the treatment of severe acute organophosphorus pesticide poisoning(SAOPP)and evaluate the safety.Methods 78 SAOPP patients was divided into control group(n=37)and test group(n=41).Atropine was as anticholinergic drug in control group and was replaced by pnehyclidine hydrochloride in test group.The persistence time of mus- carinic action,drug adverse reaction,severe complication,healing rate and therapeutic time of detoxification after these drugs being administered were observed in the two groups.Results The persistence time of muscarinic action was shorter in rest group than in control group(P

Objective To explore the mechanism of the Jiedu Huayu Ⅱ Decoction in actue hepatic failure.MethodsThe acute hepatic failure rat models were induced with thioacetamide (TAA).84 SPF Wistar rats were divided into 7 groups randomly:blank group,model group,low dose group,middle dose group,high dose group,lactulose group,and the Angong Niuhuang Pill group.The drugs were administrated by gavage 3 d before model-making,5.5 d in total.The expression of Bcl-2,cytochrome C in mitochondrial and cytoplasm were measured with Western Blot.ResultsThe expression of Bcl-2 reduced in mitochondrial,the expression of cytochrome C increased in cytoplasm and reduce in mitochondrial in model group compare with that of blank group.Jiedu Huayu Ⅱ Decoction was able to enhance the expression of Bcl-2 and restrain cytochrome C release from mitochondrial to cytoplasm.Moreover,it shows dose-effect relation.ConclusionThe protection of Jiedu Huayu Ⅱ Decoction for hepatocyte in acute hepatic failure rats maybe relate to the increase of Bcl-2 in mitochondrial,blocking the mitochondrial permeability transition pore to arrest cytochrome C releasing.

10.3969/j.issn.1007-3969.2013.05.008

Background Even though the change in wavefront aberrations with correction modality is well documented in the literature,little is known about the underlying mechanism.Complete understanding of the causes responsible for the wavefront change in the combined lens-eye system is important since it provides basic knowledge for further improving the technique to correct refractive error by correcting lenses.Objective The aim of this study was to investigate the influence of refractive correction lens on optical property of the eye by analyzing Zernike aberrations in myopic eyes with contact lens correction.Methods This study was approved by the Ethic Committee of Wenzhou Medical College.Written informed consent was obtained from each subject before entering this study.Zernike aberrations of 52 myopic eyes of 26 subjects with the spherical equivalent-1.75 to-8.50 D were measured using a Hartmann-Shock wavefront sensor.The human eye aberrations were examined at the uncorrected condition,rigid-gas-permeable contact lens (RGP-CL) corrected condition and soft contact lens (Soft-CL) corrected condition.The differences of wavefront aberrations and Zernike coefficients were compared by repeated measurement of single factor variance analysis,and correlation of the aberration changes between uncorrected condition and RGP-CL corrected condition or Sofi-CL corrected condition,between the right eyes and left eyes in different conditions were analyzed by Pearson linear correlation.Results Mean total root-mean-square (tRMS) was (0.71 ± 0.30)μm,(0.54±0.19)μm and (0.74±0.32)μm in the uncorrected condition,RGP-CL corrected condition and Soft-CL corrected condition,with a significant difference (F =8.758,P＜0.001),and tRMS was significant declined under the RGP-CL corrected condition compared with uncorrected condition (t =2.746,P =0.008),and tRMS in RGP-CL corrected condition was significantly lower than that in Soft-CL corrected condition (t =3.428,P =0.001).The high RMS (hRMS) was (0.34±0.12) μm,(0.28 ±0.12) μm,(0.40±0.14) μm in the uncorrected condition,RGP-CL corrected condition and Soft-CL corrected condition,with a significant difference among them (F =10.681,P＜0.001).An insignificant decrease of hRMS was seen in the RGP-CL corrected condition compared with uncorrected condition (t =1.987,P=0.053),but hRMS value was significant higher in the Soft-CL corrected condition than that in the uncorrected condition (t=2.101,P=0.041) and RGP-CL corrected condition (t=4.266,P＜0.001).Compared with uncorrected condition,the axis astigmatism (C5) and spherical aberration (C12) in the RGP-CL corrected condition and spherical aberration (C12) in the Soft-CL corrected condition were significantly reduced (P＜0.05),and the absolute values of trefoil (C6),vertical coma (C7) and tetrafoil (C10) in the RGP-CL corrected condition were lower than those of the uncorrected condition,but vertical coma (C7) absolute value in the Soft-CL corrected condition was increased (P＜0.05).A significantly positive correlation was seen in the spherical aberration (C12) between the RGP-CL corrected condition and uncorrected condition (r =0.763,P＜0.001),and less significant correlation was in the secondary astigmatism (C11) between the Soft-CL corrected condition and uncorrected condition(r=0.469,P＜0.001).Conclusions Different contact lens corrected conditions exert their effects on ocular wavefront structure due to its unique interaction with the eye.RGP-CL wearing has strong modification on wavefront aberrations probably due to its molding effect on corneal surface,which reduces the bilateral symmetry.High order wavefront aberration can be modified by Soft-CL wearing.

Objective To observe the changes of apoptosis signal-regulating kinase 1 (ASK1) expression in left ventricular myocardium of the dilated cardiomyopathy (DCM) rats induced by adriamycin and its correlation with left ventricular ejection fraction (LVEF).Methods One hundred and twenty SPF Wistar rats were divided into 2 groups as follows:control group (n =15),model group(n =105).Adriamycin was administered in the model group by intraperitoneal injection for 3 times in a week and repeated with a two-week interval for 6 times,while 9 g/L saline were administered in the control group in the same pattern,thus DCM rats model were constructed by the end of the 8th week.Both the model group and control group rats were drawn out and their LVEF were tested by the end of the 8th week and 12th week.Apoptosis index (AI) and the ASK1 in myocardium were tested respectively by apoptotic cells situ labeling,semi-quantitative analysis and Western blot.Results The AI of the control group,the 8th weekend model group and the 12th weekend model group were 0.53 ±0.27,16.13 ± 1.72,19.54 ±2.24.The AI of the 8th and the 12th weekend model groups were obviously higher than that in the control group.Comparing the differences among the 3 groups were statistically significant (F =18.98,P ＜ 0.05).The relative ASK1 expressions in ventricular myocardium of the control group,the 8th weekend model group and the 12th weekend model group were 0.169 ± 0.010,0.649 ± 0.071,0.781 ±0.077.Comparing the differences among the 3 groups were statistically significant (F =27.72,P ＜ 0.01).The LVEF (％) results of the control group,the 8th weekend model group and the 12th weekend model group were 75.41 ± 2.02,53.25 ±3.74,39.21 ±6.13.Comparing the differences among the 3 groups were statistically significant(F =154.87,P ＜0.01).There was a negative correlation between the ASK1 expression and LVFE in model group at the end of 12weeks(r =-0.86,P ＜ 0.01).Conclusions The ASK1 expression in myocardium of the DCM group increases obviously,thus apoptosis signal-regulating probably participates in the pathological process of DCM induced by ASK1.

Aged ; Animals ; China ; epidemiology ; Disease Outbreaks ; Female ; Humans ; Male ; Middle Aged ; Orientia tsutsugamushi ; Scrub Typhus ; epidemiology

Objective To explore the relationship between the values of total tumor perfusion parameters in primary hepatocellular carcinoma and tumor volume and peritumoral perfusion parameters,and analyze its correlation with liver ChildPugh classification.Methods Forty-seven patients with primary liver cancer in the First Affiliated Hospital of Zhengzhou University from January 2013 to January 2015 were selected to perform 320 row volume CT perfusion imaging.The parameters of hepatic artery perfusion(HAP),portal vein perfusion(PVP) and hepatic perfusion index(HAPI) in tumor and peritumoral liver tissues were calculated based on total tumor measurement.The relationship between tumor perfusion parameters and ChildPugh classification of liver function,tumor volume and total tumor perfusion parameters,total tumor perfusion parameters and peritumoral perfusion parameters were analyzed.Results There was no correlation between tumor volume and total tumor perfusion parameters,peritumoral perfusion parameters (P ＞ 0.05),and there was no correlation between total tumor perfusion parameters and peritumoral perfusion parameters(P ＞0.05).There were significant differences between HAP,PVP and HAP of total tumor perfusion in different liver Child-Pugh classifications(P ＜ 0.05).With the increase of Child-Pugh classification of liver function,the HAP and HAPI of tumor gradually increased while PVP gradually decreased (P ＜ 0.05).Conclusions There is no correlation between tumor volume,total tumor perfusion parameters and peritumoral perfusion parameters.There is also no correlation between total tumor perfusion parameters and peritumoral perfusion parameters.There are significant differences in perfusion parameters between different Child-Pugh classifications of liver function,and the perfusion parameters obtained by the total tumor measurement can be used as the imaging indexes to reflect liver reserve function.

AIM: To observe the anti-oxidative activity and adverse laxative effect of raw, traditional processed and fermented products of Polygoni Multiflori Radix (PMR), and furthermore, to evaluate the fermentation method used in the processing procedure of PMR. METHODS: In vitro ferric reducing antioxidant power (FRAP) assay was carried out to evaluate the anti-oxidative activity. Modulation of normal defecation and effect on gastrointestinal motility in mice were carried out to investigate their adverse laxative effect. RESULTS: Fermented PMR induced less severe laxative adverse effect than Polygoni Multiflori Radix Praeparata (PMRP). PMR fermented with Rhizopus sp. (FB) could modulate the defecation significantly. The gastrointestinal motility was inhibited by PMRP and PMR fermented with Rhizopus oryzae (FA). FA and FB showed better antioxidant activity than PMRP in 50% and 95% ethanol group. Contents of 2, 3, 5, 4'-tetrahydroxy-stilbene-2-O-β-D-glucoside (TSG) were reduced significantly after traditional processing but maintained after fermentation. Emodin and physcion were increased after traditional processing and fermented with Rhizopus oryzae. CONCLUSION All processing procedure, including fermentation, might reduce its anti-oxidative activity. However, most of the processed products could lessen the adverse effect on gastrointestinal tract compared to PMR. Fermentation with Rhizopus oryzae was considered as a promising processing method of PMR.
Animals ; Antioxidants ; pharmacology ; Defecation ; drug effects ; Emodin ; adverse effects ; analogs & derivatives ; pharmacology ; Female ; Fermentation ; Gastrointestinal Motility ; drug effects ; Gastrointestinal Tract ; drug effects ; Laxatives ; adverse effects ; Male ; Mice ; Mice, Inbred Strains ; Plant Extracts ; adverse effects ; pharmacology ; Plant Roots ; chemistry ; Polygonum ; adverse effects ; chemistry ; Rhizopus

BACKGROUNDThrombin is a multifunctional serine protease that plays a crucial role in hemostasis following tissue injury. In addition to its procoagulation effect, thrombin is also a potent mesenchymal cell mitogen, therefore it plays important roles in the local proliferation of mesenchymal cells in the tissue repair process. Reactive oxygen species (ROS) can induce some human cells to proliferate at lower rates while at higher concentrations they promote cells to undergo apoptosis or necrosis. Accumulative evidence suggests that thrombin can induce some cells to produce ROS. Based on these observations, we provide a hypothesis that thrombin can stimulate human lung fibroblasts to produce ROS, which play an important role in human lung fibroblast proliferation.

METHODSROS were detected in fibroblasts at 30 minutes and 60 minutes following thrombin (20 U/ml) exposure using flow cytometry. The ratio of reduced glutathione/oxidized glutathione (GSH/GSSG) was assayed in lung fibroblasts using a commercial kit following treatment with thrombin at different concentrations. NADPH oxidase and the extracellular regulated kinase1/2 (ERK1/2) signaling pathway were detected by Western blotting after thrombin stimulation to lung fibroblasts.

RESULTSThrombin, at 20 U/ml, stimulated human lung fibroblasts (HLF) to generate ROS in a time dependent manner. The ratio of GSH/GSSG in fibroblasts treated with thrombin showed a significant decrease. NADPH oxidase was activated and the ERK1/2 signal pathway was involved in the proliferation process of fibroblasts treated with thrombin.

CONCLUSIONThe activation of NADPH oxidase by thrombin leads to the production of ROS, which promotes fibroblasts proliferation via activation of the ERK1/2 signaling pathway.

Cell Proliferation ; drug effects ; Cells, Cultured ; Extracellular Signal-Regulated MAP Kinases ; analysis ; physiology ; Fibroblasts ; drug effects ; physiology ; Flow Cytometry ; Glutathione ; metabolism ; Humans ; Lung ; cytology ; NADPH Oxidases ; analysis ; physiology ; Reactive Oxygen Species ; metabolism ; Signal Transduction ; physiology ; Thrombin ; pharmacology

In this study, it is to compare the effectiveness of prevention against and treatment of doxorubicin (DOX) induced cardiotoxicity by dexrazoxane and schisandrin B (Sch B) in rats. Sprague-Dawley (SD) rats were randomly divided into the following 6 groups: normal saline group, DOX group, DOX+DEX group, DOX+Sch B (80 mg x kg(-1)) group, DOX+Sch B (40 mg x kg(-1)) group and DOX+Sch B (20 mg x kg(-1)) group. The results showed that Sch B could combat the increase of myocardial enzymes in peripheral blood, decrease of the enzyme activity of myocardial tissue antioxidant enzymes and disorders of systolic and diastolic function of heart in rats intravenously injected with doxorubicin (15 mg x kg(-1)). Sch B was better than DEX in protecting rat against DOX-induced the symptoms. Sch B could protect rat against DOX-induced acute cardiomyopathy and has clinical potential applications.
Animals ; Antibiotics, Antineoplastic ; adverse effects ; Antioxidants ; metabolism ; Cardiomyopathies ; chemically induced ; drug therapy ; Cardiotoxicity ; drug therapy ; Cyclooctanes ; therapeutic use ; Dexrazoxane ; therapeutic use ; Doxorubicin ; adverse effects ; Heart ; physiopathology ; Lignans ; therapeutic use ; Myocardium ; enzymology ; Polycyclic Compounds ; therapeutic use ; Rats ; Rats, Sprague-Dawley