Objective To study the expression and change of neuropeptide substance P (SP) during the wound healing of deep partial thickness scalding in diabetic rats. Methods Eighty-four Wistar rats were randomly divided into diabetes mellitus group (n=42) and control group (n=42). Diabetic rat models were established by intraperitoneal injection of streptozotocin (STZ) in diabetes mellitus group, and those in control group were intraperitoneally injected with aseptic citrate buffer solution. Deep partial thickness scalding with diameter of 2 cm on the back were prepared in all the rats. The pre-scalding and post-scalding wound specimens of different time points were obtained, and the percentages of wound closure were calculated. The wound specimens were also obtained for immunohistological staining to compare the areas with positive staining of SP, and ELISA was employed to detect the expression of SP in the wound tissues. Results The percentage of wound closure was significantly lower in diabetes mellitus group than that in control group from 7 days post-scalding (P< 0.01). The areas with positive staining of SP in diabetes mellitus group were much smaller than those in control group at different time points, which was most significant on the seventh day post-scalding[(1 350.93±99.28) μm2 vs(1 715.86± 103.41) μm2](P < 0.01). The expression of SP in the wound tissues was significantly lower in diabetes mellitus group than that in control group at different time points, which was most significant on the seventh day post-scalding[(114.04±9.96) vs(143.39±8.94)](P<0.01). Conclusion The significantly lower expression of SP in wound site may be one of the causes of delayed wound healing in diabetic rats.

OBJECTIVETo explore the effects of dialysate contained Chinese herbs for replenishing qi and activating blood circulation on platelet membranous glycoprotein CD62P in patients with chronic renal failure (CRF) undergoing hemodialysis.

METHODSForty patients underwent maintaining hemodialysis were randomly assigned to two groups, the Western medicated group (WMG) and the Chinese herbs group (CHG). The content of CD62P in all patients was detected by ELISA before and after hemodialysis.

RESULTSThe levels of blood urea nitrogen, creatinine, potassium, hematocrit, platelet count and carbon dioxide combining power (CO2CP) as well as the expression of CD62P after treatment were significantly changed in both groups with significant difference as compared with those before treatment (both P < 0.05). And comparison between the two groups in expression of CD62P after treatment also showed significant difference (P < 0.05). But the improvement in TCM syndrome between the two groups was insignificantly different (P > 0.05).

CONCLUSIONHemodialysis with dialysate containing Chinese herbs of replenishing qi and activating blood circulation can decrease the expression of platelet membranous glycoprotein CD62P, which may be associated with the mechanism of Chinese herbs in treating CRF.

Adult ; Blood Circulation ; Blood Platelets ; drug effects ; metabolism ; Combined Modality Therapy ; Dialysis Solutions ; Drugs, Chinese Herbal ; administration & dosage ; therapeutic use ; Enzyme-Linked Immunosorbent Assay ; Female ; Humans ; Kidney Failure, Chronic ; blood ; therapy ; Male ; Middle Aged ; P-Selectin ; blood ; Phytotherapy ; Qi ; Renal Dialysis ; methods

Objective To investigate the efficacy and safety of balloon-assisted catheter directed thrombolysis (CDT) for acute lower extremity deep vein thrombosis (DVT).Methods From September 2008 to February 2011,94 patients with acute lower extremity DVT were admitted.The cases in early stage were treated by CDT (Group A,n =50),and the cases in late stage were treated by balloon-assisted CDT ( Group B,n =44).The clinical data of these patients were retrospectively analyzed.The circumference difference between normal and affected limbs,scores of venous patency,and rates of venous patency were recorded for judging the efficacy.The total dose of urokinase and retention time of infusion catheter was compared between the two groups.The incidence of pulmonary embolism and bleeding were used to judge the safety of treatment.The venous patency was followed up by ultrasound or/and venography.Measurement data with normal distribution was described by mean + standard,and was analyzed using T test.Measurement data with non-normal distribution was described by M ( QL,QU ),QL =P25,QU =P75,and was analyzed using Wilcoxon' s test.Categorical variable data was analyzed using Chi-Square test Results The prior treatment circunfference difference between normal and affectéd limbs were (5.37 ±1.97) cm (thigh) & (4.14 ± 1.57) cm (calf) in Group A and (5.41±2.22) cm (thigh) & (4.05 ±1.61) cm (calf) in Group B ; and the difference between the groups was insignificant ( thigh:t =- 0.113,P=0.910; calf:t =0.288,P =0.774).The post treatment correspondences were:(2.96 ± 1.10) cm (thigh) & ( 1.93 ± 0.84 ) cm (calf) in Group A and ( 1.78 ± 1.40) cm ( thigh ) & ( 1.41± 1.17 ) cm (calf) in Group B; the difference between the groups was significant (thigh:t =4.66,P ＜0.0001; calf:t =2.548,P =0.012 ).The prior treatment score of venous patency was 9 (8,10) in Group A and 8.3(7,10) in Group B without significant difference (Z =- 1.5172,P =0.1292).The post treatment score of venous patency was 3.5 ( 2,5 ) in Group A and 0 ( 0,1) in Group B with significant difference ( Z =-5.7702,P ＜0.01).The rate of venous patency after the treatment was 55.0％ (42.3％,72.4％ ) in Group A and 100％ (88.5％,100％ ) in Group B,with significant difference ( Z =4.9148,P ＜ 0.01).The total dose of urokinase used in the treatment was 5.950 ( 5.525,7.225 ) × 106U in Group A and 4.100 (3.600,5.050) × 106U in Group B with significant difference (Z =-6.0133,P ＜ 0.01).The retention time of perfusion catheter was 10 (9,12) d in Group A and 6 (5,7) d in Group B with significant difference ( Z =- 8.0358,P ＜ 0.01).No symptomatic pulmonary embolism occurred in both groups during the treatment and follow-up period.The rate of bleeding complication was 38.0％ (19/50) in Group A and 22.3％ (10/44) in Group B,without significant difference (x2 =2.5590,P =0.1097 ).The removal rate of optional filter was 88.37％ (38/43) in Group A and 100％ (39/39) in Group B,with significant difference ( x2 =4.829,P =0.028 ).The rate of venous patency at the last follow-up point was 50.0％ (44.4％,59.2％ ) in Group A,and 95.4％ (83.6％,100％ ) in Group B,with significant difference (Z =- 3.2721,P =0.0011).Conclusions Balloon-assisted CDT was a promising treatment for acute lower-extremity DVT.It improved the effect of thrombolysis and reduced the dosage of urokinase,and did not increase the risk of pulmonary embolism.

A model for screening the yeast which can ferment xylose to produce the ethanol was constructed.An ethanol yeast was obtained using the lignocellulose as substrate production the ethanol.By malt extract medium pre-culturing,soil samples use the plate with xylose as sole carbon source as the primary screening,then finally screen by the potassium dichromate color-displaying method.A strain named Y2-3 was screened from the soil.Phenotypic analysis including morphology and physiology and biochemical characteristics and 26D1/D2 sequence analysis were carried out.Based on taxonomy results,the Y2-3 was identified as Pichia caribbica.The strain Y2-3 ferments using xylose as sole carbon source: biomass 23.5 g/L,xylose utilization rate 94.7 %,ethanol final yield 4.57 g/L;using mixture sugar:biomass 28.6 g/L,xylose utilization rate 94.2 %,glucose utilization rate 95.6%,ethanol final yield 20.6 g/L.Pichia caribbica is a yeast which can utilize xylose and mixture sugar as substrate.It established the foundation for further research fermentation of ethanol by yeast using lignocellulose.

This article gires you a brief introduction about the main functions and general structure of Argon Ion high-frequency combined electrotome wihich can reduce hemorrhage in operation,prevent uncontrollable bloold-oozing,shorten the time of operation and decrease the risk of cross-infection.It also recommends some key technologies in the system,especially the use of a computer to monitor and control the system for the security and reliability of the system.

Filamin A and 14-3-3-σ are closely associated with the development of breast cancer.However,the exact relationship between them is still unknown.The present study aimed to examine the interaction of filamin A with 14-3-3-σ in the invasion and migration of breast cancer.RNA interference technology was employed to silence filamin A in MDA-MB-231 cells.Real-time PCR and Western blotting were used to detect the expression of filamin A and 14-3-3-σ at mRNA and protein levels,respectively.Double immunofluorescence was applied to show their colocalization morphologically.Wound healing assay and Trans-well assay were used to testify the migration and invasion of MDA-MB-231 cells in filamin A-silenced cells.The results showed that silencing filamin A significantly increased the mRNA and protein levels of 14-3-3σ.In addition,double immunofluorescence displayed that filamin A and 14-3-3σ were predominantly colocalized in the cytoplasm of MDA-MB-231 cells.Silencing filamin A led to the enhanced fluorescence of 14-3-3σ.Furthermore,cell functional experiments showed that silencing filamin A inhibited the migration and invasion of MDA-MB-231 cells in vitro.In conclusion,silencing filamin A may inhibit the invasion and migration of breast cancer cells by upregulating 14-3-3σ.

A large amount of evidence has showed that sexually transmitted infection is an important synergistic factor of human immunodeficiency virus (HIV) infection.Therefore, this paper reviews the current situation of sexually-transmitted diseases (STD) and HIV infection, introduces HIV prevention and intervention measures and problems for STD patients at home and abroad, and proposes that behavior-psychology-society integrated intervention model should be constructed based on the characteristics of STD patients.

Objective To compare antitussive and expectorant effects between endophytes from Glycyrrhiza uralensis and decoction,and filtrate effective strains.Methods A total of 84 Kunming mice were randomly divided into blank group,positive control group,Glycyrrhiza decoction group,3 groups of endophytes (JTYB006 group,JTYB029 group,JTYF023 group).There are two batches of mice altogether.Blank group was given the injection of 0.9％ NaCl.Positive control group was given 30 mg · kg-1 codeine phosphate tablets.Glycyrrhiza decoction group was given 1.3 g · kg-1 wild Glycyrrhiza decoction.Three groups of endophytes were respectively given 1.3 g · kg-1 powder of endophytes.Six groups were given the corresponding dose by intragastric administration once a day,for 7 days.1 hour after the last medication,the mice cough models were respectively induced by ammonia and SO2.The antitussive effects were evaluated by median effective dose time (EDT50),R-value,the incubation period of cough,the times of cough within 2 minutes,inhibition ratio of cough and extension ratio of cough.70 Wistar rats were randomly divided into 7 groups,these were blank group,model group,positive control group,Glycyrrhiza decoction group,3 groups of endophytes(JTYB006,JTYB029,JTYF023).The rat model of phlegm blocking in lung was established by inhaleing SO2 and clod wind for 10 days.10 days later,the blank group was given the injection of 0.9％ NaCl,positive control group was given 0.08 mg · kg-1 compound bulbus fritilillariae cirr hosate and ammonium chloride tablets,Glycyrrhiza decoction group was given 0.95 g · kg-1 wild Glycyrrhiza decoction,3 groups of endophytes were respectively given 0.95 g · kg-1 powder of endophytes.Seven groups were given the corresponding dose by intragastric administration once a day for 7 days.The general activities,the amount of phlegm and pathological of lung tissues were measured.In addition,the levels of nitric oxide (NO),tumor necrosis factor (TNF-α),interleukin-17 (IL-17) and IL-23 were measured by enzyme-linked immunosorbent (ELISA) method.Results The EDT50 in blank group was 13.00 s,which in positive control,Glycyrrhiza decoction,JTYB006,JTYB029,JTYF023 groups were 30.09,20.32,18.45,25.03,16.52 s,the EDT50 of all drug intervention groups extended.Positive control,Glycyrrhiza decoction and JTYB029 groups had the obvious effect (R ＞ 150),JTYB006 had the effect of relieving cough (130 ＜ R ＜ 150),JTYF023 was invalidity(R ＜ 130).For cough caused by SO2,the incubation period of cough in blank group was (14.67 ± 7.20) s and positive control,Glycyrrhiza decoction,JTYB006,JTYB029 groups (28.00 ± 8.15),(25.83 ±9.35),(20.58 ±6.52),(26.50 ±5.32)s with statistically significant difference (P ＜0.01 or P ＜0.05).The times of cough within 2 minutes in blank group was(78.92 ± 19.06) and positive control,Glycyrrhiza decoction,JTYB006,JTYB029 groups were (47.42 ± 19.96),(57.67 ± 19.04),(63.15 ± 15.30),(44.25 ± 16.87) with statistically significant difference (P ＜ 0.01 or P ＜ 0.05).Compared with Glycyrrhiza decoction,JTYB006 and JTYF023 had remarkable short on the incubation period of cough,JTYB029 had remarkable reduction on the times of cough within 2 minutes(P ＜0.01 or P ＜0.05).In model,positive control,Glycyrrhiza decoction and JTYB029 groups,the amount of phlegm were (14.47 ± 3.30),(7.26 ± 4.55),(8.45 ± 3.78),(8.23 ± 1.19) mm,the levels of NO were (51.57±8.33),(30.02 ±2.65),(39.10 ±9.63),(39.25 ± 10.20)μmol · L-1,the levels of TNF-α were (654.80±56.40),(282.56 ±70.81),(400.24 ±78.03),(410.86 ±68.74) ng· mL-1,the levels of IL-17 were (66.28 ±9.34),(39.10 ±6.27),(50.20 ±9.05),(48.70 ± 10.28)pg · mL-1,the levels of IL-23 were (29.04 ±3.55),(16.02 ±3.60),(20.11 ±2.96),(21.25 ±3.40)pg · mL-1 Compared with the model group,Glycyrrhiza decoction and JTYB029 had remarkable decreasions in the terms of the amount of phlegm and the levels of NO,TNF-o,IL-17 and IL-23 (P ＜ 0.01 or P ＜ 0.05).Conclusion By filtrating,2 endophytes from Glycyrrhiza uralensis (JTYB006,JTYB029) have antitussive effects,and 1 endophytes from Glycyrrhiza uralensis (JTYB029) has expectorant effects.The antitussive and expectorant effects have no significant difference between wild Glycyrrhiza'decoction and JTYB029.

OBJECTIVETo investigate the effect of eletroacupuncture with close-to-bone needling treatment on expression of Sox9, vascular endothelial growth factor (VEGF) and type X collagen (ColX) in impaired cartilage of rabbits with knee osteoarthritis (KOA) and explore its possible mechanisms.

METHODSForty New Zealand rabbits were randomized equally into normal control group, KOA model group, eletroacupuncture with close-to-bone needling group (CN group), and normal thrust needing group (NTN group). In the latter 3 groups, KOA was induced by Hulth-Telhag treatment and evaluated with X-ray examination, and 6 weeks after the modeling, eletroacupuncture for 20 min was administered in CN and NTN groups at the acupoints "Zusanli", "Waixiyan", "Neixiyan", "Liangqiu" and "Yinlingquan" in the left knee joints once daily for 5 days as a treatment cycle. After 5 treatment cycles, the rabbits were examined for behavioral changes, cartilage morphology, and Mankin scores; The protein and mRNA expressions of S0x9, VEGF, and ColX were examined using Westen blotting, immunohistochemistry, and RT-PCR as appropriate.

RESULTSThe rabbits in the model, CN and NTN groups showed significant changes in behaviors and cartilage histomorphology after the modeling and after the treatments. HE staining showed that cartilage injury was repaired and tended to recovery in CN and NTN groups. The cartilage pathologies was severer in the model group than in the normal control, CN and NTN groups (P<0.01); Sox9 protein increased and VEGF mRNA level decreased in CN and NTN groups after treatment as compared with those in the model group (P<0.01).

CONCLUSIONEletroacupuncture with close-to-bone needling can effectively improve KOA in rabbits probably by enhancing Sox9 and reducing VEGF and ColX expressions in the cartilage to inhibit hypertrophic differentiation of the chondrocytes, maintain chondrogenic phenotype and repair cartilage cells.

Acupuncture Points ; Animals ; Cartilage, Articular ; metabolism ; pathology ; Cell Differentiation ; Chondrocytes ; cytology ; Chondrogenesis ; Collagen Type X ; metabolism ; Electroacupuncture ; Knee Joint ; physiopathology ; Osteoarthritis, Knee ; therapy ; Rabbits ; SOX9 Transcription Factor ; metabolism ; Vascular Endothelial Growth Factor A ; metabolism

OBJECTIVETo screen efficient siRNA for inhibiting hepatitis B virus using the technique of PCR-based tRNA(val) Pol III-shRNA expression cassettes (SECs).

METHODSBased on core gene sequence of HBV, five target sites of siRNA were designed. tRNAval Pol III-shRNA expression cassettes produced by one-step overlapping extension PCR strategy were co-transfected with HBV C gene and pC-EGFP plasmid into AD293 cells respectively. Forty-eight hours after transfection, fluorescence of HBVC-GFP protein was detected by fluorescence-activated cell sorting (FACS); HBV C mRNA was detected by semi-quantitative RT-PCR. HBV-producing HepG2. 2. 15 cells were transfected with selected SECs for 72 h, HBsAg and HBeAg in the cell culture medium were detected by radioimmunoassay assay (RIA). HBV pgRNA from cell total RNA was detected by semi-quantitative PCR.

RESULTCo-transfection with pC-GFP plasmid and SECs into AD293 cells resulted in inhibition expression of HBV C gene and decrease of EGFP fluorescence intensity. SEC-492i showed most significant inhibition effect on HBV C-EGFP expression compared with other SECs. Selected SEC-492i or SEC-282i targeting core gene could efficiently decrease expression of HBeAg and the level of HBV pgRNA in a dose-dependent manner. SEC-492i inhibited HBV replication and antigen expression in a more efficient way than SEC-282i at the same final concentration.

CONCLUSIONThe expressed shRNA, which targets sites on HBV C mRNA in 492i, is to have having most efficient RNAi effect. tRNAval Pol III-shRNA expression cassettes produced by one-step overlapping extension PCR strategy should be useful for identification of optimal siRNA.

Base Sequence ; Carcinoma, Hepatocellular ; pathology ; Cell Line, Tumor ; Cells, Cultured ; Embryo, Mammalian ; Green Fluorescent Proteins ; genetics ; Hepatitis B Core Antigens ; biosynthesis ; genetics ; Hepatitis B e Antigens ; biosynthesis ; genetics ; Hepatitis B virus ; genetics ; Humans ; Kidney ; cytology ; Liver Neoplasms ; pathology ; Molecular Sequence Data ; Polymerase Chain Reaction ; RNA, Messenger ; genetics ; RNA, Small Interfering ; RNA, Transfer, Val ; genetics ; RNA, Viral ; genetics ; Transfection