By exploring the different components of the lysis buffer and optimize the 2-DE conditions,established the best proteomics technical system for Populus euphratica's heteromorphic leaves,while take the heteromorphic leaves in the same blanche as the test materials to find differences between the protein expressions of the leaves.It showed that the lysis solution which containing 2mmol/L thiourea,7mmol/L urea,2% CHAPS,60mmol/L DTT and 0.2% IPG buffer could dissolve the protein better.Through tandem mass spectrum,the results show that heteromorphic leaves are different in photosynthesis and respiration.This research offered valuable informations for understanding the molecular mechanism during leaves development and elucidating the mechanism of the eco-adaptability of Populus euphratica.

Background Wearing contaclenincreasethe risk of infection of the cornea.Some studieshowed the gas-permeability of materialused foconstructing corneal contaclenione of the contributing factorrelated to corneal health.Objective Thistudy wato observe the in vitro adherence ability of differenbacterito rigid gas-permeable contaclense(RGP-CL) made with varioumaterials.MethodContaclensemade with hexafocon,enflufocon opolymethyl methacrylate (PMMA) were placed into Staphylococcuaureus,Staphylococcuepidermidis,oPseudomonaaeruginosbacterial suspension(0.5 MCF) fo24 hours.The strength of bacterial adherence watested and studied by the methyl thiazolyl tetrazolium (MTT) colorimetrimethod based on absorbance (value),and the vortex method waused to calculate the colony forming units.The bactericlump formation waexamined with scanning electron microscope (SEM).ResultMTcolorimetrimethod showed thathe adherence ability of Staphylococcuaureuto hexafocon (value) wasignificantly lowethan thato enflufocon and PMMA,respectively (q=7.379,8.207,P＜0.01),buno significandifference wafound in the adherence ability of Staphylococcuaureubetween enflufocon and PMM(q =0.828,P＞0.05).The adherence ability of Staphylococcuepidermidito XO and enflufocon walowethan thato PMM(q =14.000,12.800,P＜0.01),buno significandifference wafound between the adherence of Staphylococcuepidermidito hexafocon and enflufocon material (q =1.200,P＞0.05).There wano significandifference in the adherence ability of Pseudomonaaeruginosto all three material(F=2.155,P=0.138).The vortex method presented the colony forming unitof Staphylococcuaureuto hexafocon,enflufocon and PMMwith (37.9± 1.5)×106,(49.9±2.2)×106 and (67.4± 1.6)×106,respectively,with significandifference among them (F =206.240,P＜0.01),showing the lowesvalue in hexafocon,the highesvalue in PMMand middle value in enflufocon (q=11.650,28.640,16.990,P＜0.01),Moreover,colony forming uniof Staphylococcuepidermidito hexafocon,enflufocon and PMMwa(7.9 ± 1.3) × 106,(10.5 ± 1.5) × 106,(11.2 ±1.2) × 106,respectively.And thaof hexafocon walowethan one of the PMMmaterial (q =5.060,P＜0.05).No significandifference wafound between hexafocon and enflufocon nobetween hexafocon and PMM(q =3.290,1.770,P＞0.05).In addition,the resultthacorresponded to the vortex method were seen in the MTcolorimetriassay (F =0.232,P =0.799).SEM examination showed dispersed population of Staphylococcuaureuand Staphylococcuepidermidion the surfaceof hexafocon and enflufocon;while much more Staphylococcuaureuand Staphylococcuepidermidiadhered on the surface of PMMA,forming net-like appearance.Conversely,high numbeof Pseudomonaaeruginoswaseen on the surface of all three materials,withounoticeable differencein the bacterial shape and quantity on each of the material.ConclusionThe adherence ability of bacterito PMMistrongethan thaof hexafocon and enflufocon,and gas-permeable material of RGP-CL doenoimpacthe adherence ability of bacteria.

Objective To investigate the mRNA expression of TLR4 mRNA and TLR2 in the peripheral blood mononuclear cells(PBMC)from the patients with systemic lupus erythematosus (SLE). Methods The mRNA of TLR4 and TLR2 were detected in the patients with SLE (n = 41) and the normal healthy control (n = 24) with the method of Taqman Real-time PCR. Results The mRNA expression of TLR4 was significantly higher in active SLE patients than that in inactive SLE patients and the normal healthy control (P

Objective To evaluate the Carryover between the chemistry and immunoassay in Beckman Coulter Laboratory Au-tomation System and decide to whether sharing samples for testing between chemistry and immunoassay systems or not. Methods According to a certain order,high concentration samples and low concentration samples of HCG with different sample volume (500 μl,2 000 μl)were tested on Beckman AU5421 automatic biochemical analyzer.The HCG of low concen-tration samples were then tested to evaluate the carryover between the chemistry and immunoassay and explored the correc-tive procedure to deal with the carryover by increasing special cleaning process of beckman AU5421 automatic biochemistry analyzer.Results Under different sample volume,the carryover in a single module and as a whole of the beckman AU5421 automatic biochemistry analyzer were 5.44,15.47,23.51 and 45.96 ppm respectively (t=14.553,P <0.001;t=5.527,P =0.005;t=3.985,P =0.016;t=20.457,P <0.001).By increasing special cleaning process the carryover of 0.22 ppm was detected in 500 μl sample volume of the beckman AU5421 automatic biochemistry analyzer as a whole.Conclusion The car-ryover between the chemistry and immunoassay in Beckman Coulter Laboratory Automation System could been sovled by in-creasing special cleaning process of beckman AU5421 automatic biochemistry analyzer.

ObjectiveTo observe protective effects of agmatine (AGM) on inflammatory response and spleen immune function in mice with trauma.Methods Forty-eight adult male C57BL/6 mice were randomly divided into three groups (n= 16 each), including control group, model group (bilateral femoral fracture and removal of 35% of the total blood volume), and AGM group (trauma/hemorrhage & AGM 200 mg/kg). Eight mice in each group were sacrificed at 3 hours and 24 hours, respectively, after modeling, and blood samples and tissue homogenate of spleen and liver were collected. The contents of tumor necrosis factor-α (TNF-α), interleukins (IL-6, IL-1β) in serum and liver tissue were determined with enzyme linked immunosorbent assay (ELISA). Serum aspartate transaminase (AST), alanine aminotransferase (ALT) and lactic dehydrogenase (LDH) were determined with automatic biochemistry analyzer. Spleen proliferation response stimulated with concanavalin A (ConA) was evaluated with methyl thiazolyl tetrazolium colourimetry (MTT).γ-interferon (IFN-γ) and IL-2 releases were determined with ELISA.Results Compared with control group, 3 hours after trauma/hemorrhage, the levels of serum TNF-α, IL-6, and IL-1β in model group were significantly elevated [TNF-α (ng/L): 145.38±31.50 vs. 23.06±11.14, IL-6 (ng/L): 496.94±50.76 vs. 47.13±17.47, IL-1β (ng/L): 321.31±43.02 vs. 29.25±16.24,allP< 0.01]. It was found that AGM treatment could alleviate the increase in serum pro-inflammatory mediators induced by trauma/hemorrhage, such as TNF-α (ng/L:111.56±25.47 vs. 145.38±31.50), IL-6 (ng/L: 412.56±44.33 vs. 496.94±50.76), IL-1β (ng/L: 273.38±45.25 vs. 321.31±43.02,P< 0.05 orP< 0.01). Twenty-four hours after trauma/hemorrhage, serum pro-inflammatory mediators were recovered to the levels in control group. There was no significant difference in TNF-α and IL-6 levels at 3 hours after trauma/hemorrhage among groups. Compared with control group, the expressions of liver TNF-α and IL-6 in model group were increased at 24 hours following trauma [TNF-α (ng/mg): 32.93±4.90 vs. 26.58±2.33, IL-6 (ng/mg): 11.20±1.66 vs. 8.38±0.89,bothP< 0.01]. However, AGM inhibited the level of TNF-α (ng/mg:28.92±3.16 vs. 32.93±4.90) and IL-6 (ng/mg: 9.03±1.28 vs. 11.20±1.66) in the liver as induced by trauma/hemorrhage (P< 0.05 andP< 0.01). At 24 hours after modeling, model group and AGM group had distinctly higher serum AST, ALT, LDH levels than those of control group [AST (U/L): 405.9±31.2, 245.7±22.1 vs. 128.2±15.9; ALT (U/L): 92.1±6.3, 51.6±5.0 vs. 30.1±3.2; LDH (U/L): 606.7±36.3, 478.7±25.3 vs. 384.0±16.6, allP< 0.01]. Nevertheless,the increase in serum AST, ALT and LDH was alleviated in AGM group (allP< 0.01). Meantime, trauma/hemorrhage produced a noticeable depression of proliferation of splenic cells and IFN-γ and IL-2 release stimulated with ConA compared with control group [proliferation rate: (40.97±4.13)% vs. (89.99±7.76)%, IFN-γ(ng/L): 91.6±12.3 vs. 353.2±21.5,IL-2 (ng/L): 53.4±6.4 vs. 91.0±12.2,allP< 0.01]. In contrast, AGM notably restored the capacity of proliferation response of splenic cells [proliferation rate: (74.86±5.75)% vs. (40.97±4.13)%, P< 0.01],enhanced the release of IFN-γ and IL-2 stimulated with ConA [IFN-γ (ng/L): 327.8±23.6 vs. 91.6±12.3, IL-2 (ng/L): 74.8±10.4 vs. 53.4±6.4, bothP< 0.01].Conclusion AGM can dramatically alleviate spleen immunosuppression, excessive inflammation and organ damage induced by trauma/hemorrhage.

Background:Cold storage and ischemia-reperfusion injury of liver grafts are critical for the prognosis of patients undergoing liver transplantation. Establishing a stable cold storage and reperfusion animal model is a fundamental measure for related studies. Aims:To establish a modified isolated perfused rat liver model for comprehensive assessment of liver grafts in studies on preservation of liver grafts before transplantation. Methods:Twelve Sprague-Dawley rats were randomly allocated into two groups. Livers of rats in control group were retrieved and perfused immediately for 90 minutes without preservation. In experimental group,liver grafts underwent a 30-minute warm ischemia followed by 24-hour cold storage before ex vivo perfusion. The perfusate was collected dynamically for monitoring the levels of transaminases,electrolytes and pH value;the portal vein pressure of liver grafts was measured by pressure sensor,and the hepatic hydrogen peroxide (HPO)level was assessed by microprobe for free radicals. The bile production was recorded after the ex vivo perfusion;meanwhile,the levels of malondialdehyde (MDA)and superoxide dismutase (Cu/ Zn SOD),the histopathological changes and apoptosis of hepatocytes of liver grafts were examined. Results:Compared with the control group,the levels of AST and ALT,the portal vein pressure and the HPO level of liver grafts in experimental group were obviously increased throughout the perfusion. Furthermore,the bile production and level of Cu/ Zn SOD of liver grafts in experimental group were significantly decreased. The histopathological injury and hepatocytes apoptosis of liver grafts were milder in control group. Conclusions:The liver function and antioxidant effect were reduced in warm ischemic and cold preserved liver grafts. The modified isolated perfused rat liver model established in this study is useful for monitoring and evaluation of the cold storage and reperfusion injury in liver grafts.

Objective To evaluate the influencing factors of compliance and the compliance changes before and after intervention on chronic hepatitis B patients who oral nucleos(t)ide analogue (NA), by using the continuing care service items provided by WeChat platform. Methods A total of 67 patients with chronic hepatitis B were selected from January 2013 to June 2015. WeChat health care teams and WeChat groups were established to conduct continuing care intervention for 6 months by providing services, such as authoritative scientific diagnosis and treatment information, online consulting service, expert outpatient appointment, etc. Results The score of Morisky Medication Adherence Scale (MMAS-8) in patients of different culture levels of illiteracy (4.75 ± 2.20) points, primary school or junior high school graduate (5.73±1.87) points,high school or vocational school graduate (6.31±1.45) points,university diploma and above (7.24 ± 1.23) points were significant difference (χ2=22.113, P < 0.01). The score in patients previous used of nucleoside drugs (5.76±1.89) points was lower than that in patients not previous used of nucleoside drugs (6.62±1.60) points, and there was a significant difference between the two groups(Z=-2.636, P<0.01). Significant difference (χ2=10.844, P<0.01) was shown between groups of≥3 kinds drugs combined with the score 7.02 ± 1.08, 1-2 kinds drugs combined with the score 7.02 ± 1.08 and no combined medication with score 6.04±1.95. Different medical insurance types of free of charge (7.60±0.48) points,residents medical insurance (6.54 ± 1.52) points,new rural cooperative (5.17 ± 2.34) points and self-paying medical service (5.93±1.91) points showed significant difference(χ2=15.630, P<0.01). The scores in other diseases showed no significant difference (Z=0.401, P > 0.05) both in combination or non-combination. Compared to 6.45 ± 1.69 of pre-intervention, the total compliance score 6.86 ± 1.53 showed significant increased after intervention (Z=-2.551, P < 0.05), and the number of people with high compliance after the intervention increased while the number of people with middle and low compliance after the intervention decreased, and significant differencewas observed in two groups (χ2=9.521, P<0.01). Conclusions After the intervention of continuing care based on WeChat platform, the patients' compliance with nucleoside antiviral drugs were significant improvement than those of pre-intervention.

The tail suspension test (TST), forced swimming test (FST) and chronic unpredictable mild stress (CUMS) model were used to evaluate the anti-depressant effect of supercritical CO2 extract from Compound Chaigui Fang (FFCGF). A nuclear magnetic resonance (NMR)-based metabonomics combined with multivariate statistical analysis was performed to explore the mechanism of FFCGF. Rats were conducted by CUMS procedure for 28 days and drugs were administrated at the same time. The body weight, sucrose preference, crossings and rearings in open-field tests were evaluated and the urine was collected simultaneously. The metabonomic profiles of rats' urine were analyzed by NMR and potential biomarkers were searched by multivariate statistical analysis. The results showed that administration of FFCGF significantly decreasing the immobility time in FST and TST and improving rats' body weight, sucrose preference, crossings and rearings in CUMS, which were indication that the anti-depressant effect of FFCGF was abvious. Significant differences in the metabolic profile of the CUMS treated group and the control group were observed, which were consistent with the results of behavioral tests. Decreased levels of acetic acid, succinic acid, 2-oxidation glutaric acid and citric acid and increased glycine and pyruvic acid in urine were significantly affected by the CUMS procedure and the 6 biomarkers were reversed evidently after administration of FFCGF. These changes were suggestion that the anti-depressant mechanism of FFCGF was associated with energy metabolism, lipid metabolism and amino acid metabolism.
Animals ; Antidepressive Agents ; chemistry ; isolation & purification ; pharmacology ; therapeutic use ; Behavior, Animal ; drug effects ; Body Weight ; Carbon Dioxide ; chemistry ; Depression ; drug therapy ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; pharmacology ; therapeutic use ; Male ; Mice

OBJECTIVEIn the recent twenty years, the diaphragmatic contraction, relaxation functions and electric activity have been explored through electromyography (EMG) and transdiaphragmatic pressure (Pdi) determination. But these techniques required some complex and expensive instruments, so the diagnosis and treatment of children's diaphragmatic fatigue have not been well evaluated. The present study explored the diagnosis of children's diaphragmatic fatigue through measuring ribcage-abdomen motion and analyzed its asynchrony.

METHODSFifty-three children (male 37, female 16, and age rage from 1 months to 9 years) with respiratory rate > 30 breaths/min, heart rate > 110 beats/min, and respiratory dysfunction had asynchronized ribcage-abdomen motion showed by impedance respirograph (IRG). The authors observed whether ribcage-abdomen motion was synchronic and calculated M levels (staggered peak time/total duration of the breathing cycle). The ribcage and abdomen outputs were displayed on vertical (for rib cage) and horizontal (for abdomen) axes of X-Y instrument. In addition, the change of respiratory frequency and heart rate was observed and arterial blood-gas analysis was also performed.

RESULTS(1) M levels in one-dimensional IRG were positively correlated with alpha angle in two-dimensional IRG (r = 0.956, P < 0.001). Asynchronized respiratory motions could be divided into three types. type I showed completely contra-directional movements of respiration, M levels for (48.1 +/- 4.4)%, an irregularly clockwise loop in the two dimensional IRG, and alpha angle for (138.3 +/- 15.0) degrees. In type II, one dimensional IRG showed displaced peak of the chest and abdomen motion curves, M levels were (16.5 +/- 4.7)%, two dimensional IRG was displaced in a counterclockwise direction, and alpha angle was (55.3 +/- 10.8) degrees. In type III, abdominal motion curve of one dimensional IRG had double peaks, M levels were 0, two dimensional IRG was presented as 8-shaped double circles, alpha angle was (41.3 +/- 3.8) degrees; (2) pH levels in the patients with type I and type II diaphragmatic fatigue were significantly lower, and PCO(2) levels were significantly higher than those with type III or in the normal subjects (P < 0.001 for all), but there was no statistically significant difference between type III and the normal subjects (P > 0.05); (3) Both of respiratory rate and heart rate in type I, type II and type III were higher than those in the normal subjects (all P < 0.001), and the differences among the three types were significant (P < 0.001 for all); (4) Both M levels and alpha angle were negatively correlated with pH levels (r = -0.514, P < 0.001 and r = -0.497, P < 0.001), while positively correlated with PCO(2) levels (r = 0.672, P < 0.001 and r = 0.625, P = 0.01).

CONCLUSIONS(1) IRG can be reliably used to diagnose children's diaphragmatic fatigue. This technique is simple and easy to perform and non-invasive. It is therefore worthy of recommending for further clinical investigations. (2) According to the characteristics of IRG, diaphragmatic fatigue can be divided into three types. (3) The development of children's diaphragmatic fatigue has a series of characteristic changes. (4) To avoid the patients suffering from respiratory failure, it is the key time to adopt the policies of prevention and treatment when IRG shows signs of type III diaphragmatic fatigue.

Child ; Child, Preschool ; Diaphragm ; physiopathology ; Fatigue ; classification ; diagnosis ; Female ; Humans ; Infant ; Male ; Respiration ; Respiratory Function Tests ; methods

OBJECTIVETo study the effect of Shenmai injection (SMI) on diaphragmatic fatigue in children with respiratory failure.

METHODSThirty-five cases of children respiratory failure with diaphragmatic fatigue were divided into two groups. The control group was treated with comprehensive therapy including anti-infection, oxygen inhalation and parenteral nutrition, etc. The SMI group was treated with SMI intravenously, besides the comprehensive therapy as in the control group. Taking electrical impedance respirogram (IRG) as criterion of therapeutic effect, the effective cases after 30 min medication, time for diaphragmatic fatigue disappearance, as well as arterial blood gas analysis before and after treatment were analyzed.

RESULTS(1) In 30 min after medication, the effective cases in the SMI group (15/18) were more than that in the control group (4/17, P < 0.01); (2) Blood pH increased and PaCO2 decreased in both groups after treatment, but the decrease of PaCO2 was more significant in the SMI group (P < 0.05); (3) Time of diaphragmatic fatigue disappearance in the SMI group was shorter than that in the control group (P < 0.01).

CONCLUSIONSMI is an effective drug for treatment of diaphragmatic fatigue in children with less adverse effect, and worthwhile for spreading in clinical practice.

Child ; Child, Preschool ; Diaphragm ; physiopathology ; Drug Combinations ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Infant ; Infant, Newborn ; Injections, Intravenous ; Male ; Muscle Fatigue ; drug effects ; Phytotherapy ; Respiratory Insufficiency ; drug therapy ; physiopathology