To discuss the influence of dexamethasion on lL-1β and TNF - α expression in suture - induced rabbit corneal neovascularization ( CNV ) and analyze the potential mechanism.
●METHODS: For 43 healthy rabbits, 40 were randomly selected for establishing CNV model in corneal stroma. The right eyes (group A) were received no medicine and the left eyes ( group B) were injected dexamethasone after successfully establishing the model. The no modeling 3 rabbits were normal control group. The morphologic change of corneal was observed with slit lamp microscope and the areas of CNV was calculated every day, then 8 rabbits were randomly chosen for sacrificing at 1, 4, 7, 14, 21d respectively. The pathological characteristics of CNV were observed after HE staining, and lL - 1β and TNF - α expression was detected by immunohistochemistry.
●RESULTS: CNV was grown at the 4d after suture, and the 7-14d was vigorous growth period. inflammatory cell infiltration appeared after HE staining, and CNV was located at the superficial stroma of cornea. lmmunohistochemistry results showed that lL - 1β and TNF - α expression was gradually increased with prolonged suture time. Compared with corneal stitch group, the rabbits cured by dexamethasone were found with less inflammatory cells infiltrating and neovescularization, moreover, the expression of lL - 1βand TNF-α decreased. There were statistical significance between the two groups (P<0. 05).
● CONCLUSlON: Dexamethasone can inhibit the CNV growth by controlling the inflammation of corneal and restraining lL-1β and TNF-α expression.

Objective To study the sensitivity and specificity of a double monoclonal antibody sandwich enzyme-linked immunosorbent assay (DMcAbS-ELISA)for the detection of F1 antigen of Yersinia pestis (Y.pestis).Methods Viscera (viz.liver and spleen)specimens of infected mice with virulent Y.pestis and negative control mice were detected by bacteriological test,DMcAbS-ELISA and reverse indirect hemagglutination assay (RIHA) for the F1 antigen.Results The 225 control specimens were all negative tested by plague bacteriology testing,DMcAbS-ELISA and RIHA.A total of 308 plague-infected mouse organ specimens were tested,and the positive detection rate was 92.21％ (284/308),90.91％(280/308) and 89.61％ (276/308),respectively,with germiculture,DMcAbS-ELISA and RIHA,and the difference was not statistically significant(x2=5.65,P＞0.05).The coincidence rate of DMcAbS-ELISA and bacterial culture was 97.00％[(274+243)/533],Kappa =0.940;RIHA in line with the rate was 99.25％[(276+253)/533],Kappa =0.985.Authenticity comparison of F1 antigen detection in viscera specimens:sensitivity,specificity,positive predictive value,negative predictive value,adjusted agreement and Youden's index was 96.48％(274/284),97.59％(243/249),97.86％ (274/280),96.05 ％(243/253),96.99％[1/4×(274/280+274/284+243/253+243/249)]and 0.9407,respectively,for DMcAbS-ELISA and 96.13％(273/284),98.80％(246/249),98.91％(273/276),95.72％(246/257),97.39％[1/4×(273/276+273/284+246/257±246/249)]and 0.9492,respectively,for RIHA.The detection sensitivity of DMcAbS-ELISA and RIHA was 2.7×104 cfu/ml and 2.2×105 cfu/ml,for Y.pestis,respectively,and was 10 μg/L for F1 antigen.Conclusions DMcAbS-ELISA assay is a sensitive,specific,simple and fast method for detection of the F1 antigen,and it has a potential application value in rapid diagnosis of plague.

Objective To study the sensitivity and specificity of gold-immunochromatography assay (GICA) for detection of Yersiniapestis(Y. pestis ) F1 antigen. Methods Viscera organ(liver and spleen) specimens of 308 mice with virulent Y. pestis infection and 225 control specimens of rats(217 Spermophilus dauricus, 5 mice,3 guinea pigs) were detected by GICA dipstick with monoclonal antibody against plague F1 antigen (F1MAb).Meanwhile, micro-method of reverse indirect hemagglutination assay(RIHA) and bacteria culture were carried out for parallel testing. Results Bacteriological examination of 225 control specimens, and F1 antigen detected with GICA and RIHA were all negative. No cross-reaction with related Yersinia pseudotuberculosis at 1 x 108 cfu/ml level was found in GICA and RIHA. Detection sensitivity of Y. pestis by GICA and RIHA were 2.5 × 105 cfu/ml and 2.0 × 105 cfu/ml, respectively, and of F1 antigen were 1μg/L and 10 μg/L, respectively. Coincidence was 97.94% (522/533) between GICA and bacteriological test, Kappa = 0.959, and the difference was statistically insignificant(x2 = 0.36, P ＞ 0.05); and 97.94%(522/533) between GICA and RIHA, Kappa = 0.959, with statistically significant difference in the positive detection rates(x2 = 9.09, P ＜ 0.05). Out of the 308 infected mice, 284 were positive of plague bacterial cultured, In 284 samples with positive bacterial culture, there were 280 of positive detected by GICA for F1 antigen, positive rate of F1 antigen was 98.59%, higher than that by RIHA[the positive rate of 96.13%(522/533)], with statistically significant difference(x2 = 5.14, P ＜ 0.05). Sensitivity of GICA was 98.59% (280/284), specificity was 97.19% (242/249), positive predictive value (PPV) was 97.56% (280/287),negative predictive value ( NPV ) was 98.37% (242/246), and Youden index was 0.9578. Conclusions GICA is sensitive and specific, fast and simple in detection of F1 antigen of the plague. It's a valuable detection technique for early and rapid diagnosis of plague.

OBJECTIVETo compare clinical therapeutic effects of double moxibustion at Yifeng (TE 17) combined with electroacupuncture. and simple electroacupuncture on facial paralysis.

METHODSEighty-seven cases of facial paralysis were randomly divided into a treatment group (n = 47) treated by double moxibustion at Yifeng (TE 17) combined with electroacupuncture, and a control group (n = 40) treated by simple electroacupuncture. Their therapeutic effects were investigated after 30 days.

RESULTSThe total effective rate was 100.0% in treatment group and 87.5% in the control group with a significant difference between the two groups (P < 0.05).

CONCLUSIONDouble moxibustion at Yifeng (TE 17) combined with electroacupuncture in clinical therapeutic effect on peripheral facial paralysis is superior to simple electroacupuncture.

Acupuncture Points ; Electroacupuncture ; Facial Paralysis ; therapy ; Humans ; Moxibustion

OBJECTIVETo set up the fittest medium and optimum condition for plantlets to form microtubers.

METHODPlant hormones, concentration of sucrose, active carbon and light time influenced formation of adventitious root and microtuber in vitro from plantlet of Rehmannia glutinosa (85-5).

RESULT AND CONCLUSIONThe plantlets were cultivated on the medium of microtuber induction after roots were induced on the 1/2MS medium with IBA 1 mg.L-1. The best medium was MS + 6-BA 2 mg.L-1 + NAA 0.1 mg.L-1 + Sucrose 5%. The fittest incubation temperature was 25 degrees C and the light length was (2,000-3,000 lx) 12 h.d-1. Active carbon and GA3 should not be added to the medium, which was not suitable for the induction of microtuber.

Culture Media ; Culture Techniques ; Light ; Plant Growth Regulators ; pharmacology ; Plant Roots ; growth & development ; Plants, Medicinal ; growth & development ; Rehmannia ; growth & development ; Sucrose ; pharmacology ; Temperature

The questionnaire and the result of 2010' Hwato Cup National University Students' Acupuncture Manipulation Skills Competition were analyzed in this paper. It was showed that the competition achieved the significant effects of enhancing acupuncture manipulation skills for the university students and promoting the standardization on teaching acupuncture manipulation skills. The teachers and students were not very satisfied with the current acupuncture manipulation skill education. In the competition, only the item of reciting the classics achieved more than 90 scores, which just displayed the memory ability. The results of the manipulation competition were generally not very high. It is suggested that concerning to teaching acupuncture and moxibustion in the future, the ratio of class time for improving the practice ability on the human body should be increased and the practice on some manipulation techniques such as inserting the needle by holding the needle tip with the pressing hand, reinforcing-reducing technique by twirling and rotating the needle and warming needle technique should be intensified. It is necessary to enhance the interpretation, emphasis and supplementation on the keys and details of some manipulations of acupuncture and moxibustion.
Acupuncture ; education ; Acupuncture Therapy ; instrumentation ; methods ; China ; Female ; Humans ; Male ; Surveys and Questionnaires ; Universities

Objective To survey avian influenza A viruses (AlVs) in the environment and explore the reasons for the surge in human H7N9 cases.Methods A total of 1,045 samples were collected from routine surveillance on poultry-related environments and 307 samples from human H7N9 cases-exposed environments in Henan from 2016 to 2017.The nucleic acids of influenza A (Flu A),H5,H7,and H9 subtypes were detected by real-time polymerase chain reaction.Results A total of 27 H7N9 cases were confirmed in Henan from 2016 to 2017,24 had a history of live poultry exposure,and 15 had H7N9 virus detected in the related live poultry markets (LPMs).About 96％ (264/275) Flu A positive-environmental samples were from LPMs.H9 was the main AIV subtype (10.05％) from routine surveillance sites with only 1 H7-positive sample,whereas 21.17％ samples were H7-positive in H7N9 cases-exposed environments.Samples from H7N9 cases-exposed LPMs (47.56％)had much higher AIVs positive rates than those from routine surveillance sites (12.34％).The H7+H9 combination of mixed infection was 78.18％ (43/55) of H7-positive samples and 41.34％ (43/104) of H9-positive samples.Conclusion The contamination status of AIVs in poultry-related environments is closely associated with the incidence of human infection caused by AlVs.Therefore,systematic surveillance of AlVs in LPMs in China is essential for the detection of novel reassortant viruses and their potential for interspecies transmission.

OBJECTIVETo determine the differentially expressed serum proteins in patients with hepatoma carcinoma and identify a putative diagnostic marker.

METHODThe isobaric tags for relative and absolute quantitation (iTRAQ) labeling method and LC-MALDI-TOF/TOF MS detection method were used to quantify serum proteins in hepatocellular carcinoma patients (n =20) and healthy individuals (n =20). Real-time reverse transcription-polymerase chain reaction was used to verify the differentially expressed proteins by analyzing the corresponding mRNA expression levels in the hepatic carcinoma and healthy hepatocyte samples, as well as in 30 pairs of patient-matched hepatic carcinoma and adjacent normal tissue samples. Western blot analysis was used to verify the protein expression in hepatic carcinoma cells.

RESULTFifty-one proteins were significantly differentially expressed between the hepatic carcinoma group and healthy controls. The iTRAQ protein profile showed that the serum level of clusterin was significantly lower in hepatoma carcinoma patients. The mRNA level of clusterin was 20-fold lower in hepatic carcinoma cells than in healthy hepatocytes, and was 2.38-fold lower in hepatoma tissues than that in adjacent normal tissues. The clusterin protein levels were significantly lower in hepatic carcinoma cells (8.06 vs normal hepatocytes: 27.81; P less than 0.01).

CONCLUSIONThe serum expression of clusterin is significantly decreased in both serum and tissues of hepatic carcinoma patients. The relationship between hepatic carcinoma and clusterin should be evaluated in future studies.

Biomarkers ; Carcinoma, Hepatocellular ; metabolism ; Case-Control Studies ; Clusterin ; blood ; metabolism ; Humans ; Liver Neoplasms ; metabolism ; Mass Spectrometry ; RNA, Messenger ; genetics ; Tumor Cells, Cultured

Objective To understand the current status of the sanitation of freshwater aquaculture environments ,and Clo-norchis sinensis infection of freshwater fish in the aquaculture and market in a city of Pearl River Delta region,so as to provide the evidence for formulating the prevention and control strategy of clonorchiasis sinensis. Methods In 2016,based on the dis-tribution of freshwater aquaculture,36 freshwater fish ponds among 14 towns were selected for sampling and investigation,and 10-20 pieces were collected from each pond. Besides,3 aquatic product wholesale markets were included,among which 3-6 stalls were selected from each market,and 20-30 pieces were collected from each stall. The metacercaria in the fish was exam-ined by the digestion method. Results In the 36 fish ponds,there were no toilets with the stool being drained into fish ponds di-rectly,and there was only one pond with duck sheds with the stool being drained into fish ponds directly. Totally 437 pieces of freshwater fish from ponds were detected,with a metacercaria positive rate of 4.35％(19/437). The metacercaria positive fish were distributed in 50％(7/14)of towns and 25％(9/36)ponds. The positive rates of crucian carp,grass carp,dace,aristich-thysnobilis,and tilapia were 13.95％(6/43),4.76％(9/189),4.44(2/45),1.55％(2/129),and 0(0/31)respectively,with statistically significant difference(χ2=13.46,P=0.01). Totally 307 pieces of freshwater fish were collected from the wholesale markets,with a total positive rate of 1.95％(6/307). The positive rate of grass carp and aristichthysnobilis were 3.20％(4/125) and 2.78％(2/72)respectively,and no positive samples were found in crucian carp,dace and tilapia,with no statistically sig-nificant difference among the different fish in the infection rate(Fisher exact P=0.75). Conclusions The sanitation of fresh-water aquaculture environments in a city of Pearl River Delta region is relative good. However,there are different degrees of Clo-norchis sinensis infection of freshwater fish in some aquaculture environments and markets.

Objective To explore the efficacy and safety of autologous peripheral blood stem cell transplantation (APBSCT) in the treatment of systemic lupus erythematosus.Methods Nine patients with systemic lupus erythematosus were enrolled in this study.Patients were given cyclophosphamide and granu- locyte colony-stimulating factor(G-CSF)as the mobilization regimen.Urine was alkalinized and hydrolyzed to protect the function of the heart,liver and kidney of the patients.A CS3000 Plus blood cell separator was used to collect peripheral blood stem cells,which were preserved in liquid nitrogen.Two to five days before the administration of the stem cells,the patients were pretreated with intravenous injection of cyclophos- phamide (50 mg?kg~(-1)?day~1) for 4 consecutive days and antithymocyte globulin (ATG,2.5 mg?kg~(-1)?day~1) for 3 consecutive days.Granulocytes were recoverd by G-CSF stimulation.Then,the peripheral blood stem cells were reinfused.Therapeutic effect was evaluated by assessment of alteration of clinical manifestation (skin erythema),levels of proteinuria and antoantibodies,hematopoietic reconstitution and occurrence of transplantation related complications.Results After transplantation,all patients had been successfully en- grafted.The time for peripheral leucocyte count to reach 1.0?10~9/L was 7～15d;the time for platelets to reach 20?10~9/L was 0～21 d.The skin erythema resolved in all patients;proteinuria decreased to normal level and the autoantibodies became negative in most of the patients.Serum sickness-like response occurred in all patients,renal and heart failure in 1 patient,hemorrhagic cystitis in 3 patients,psychiatric disorders in 1 patient,candidal infection in 1 patient.Conclusion One-year follow up suggests that autologous stem cell transplantation is markedly effective and relatively safe for systemic lupus erythematosus.However,the duration of remission remains to be investigated in a long-term follow up study.