AIM: To evaluate the diagnostic accuracy of macular ganglion cell - inner plexiform layer ( GCIPL ) measurements using high- definition optical coherence tomography ( Cirrus HD - OCT ) ganglion cell analysis algorithm for detecting early and moderate to severe glaucoma.
METHODS:Twenty normal control persons, 26 patients with early glaucoma and 29 patients with moderate to severe glaucoma were enrolled in this study. Macular GCIPL, optic nerve head ( ONH ) parameters and peripapillary retinal nerve fiber layer ( RNFL ) thickness were measured in each subject. Then all measured results of each parameter were calculated using SPSS17. 0. Areas under the receiver operating characteristic curves ( AUC) of each parameter were calculated to compare the diagnostic accuracy for detecting early and moderate to severe glaucoma.
RESULTS: For detecting early glaucoma, AUC of average RNFL and seven clock value of RNFL were the biggest ( 0. 871 and 0. 896 respectively ), the AUC of parameters in GCIPL were also significant, among them,
the average GCIPL showed bigger AUC(0. 847) than the minimum GCIPL (0. 812). For diagnosing moderate to severe glaucoma, the AUC of rim area was 0. 992, which was bigger than that of average RNFL ( 0. 991 ). The minimum GCIPL showed bigger AUC ( 0. 983 ) than the average GCIPL (0. 967). For early glaucoma diagnosis, the sensitivity of average RNFL was the highest (76. 9%), while the average GCIPL has the highest specificity (93. 5%).
CONCLUSION: AS a new diagnostic parameter for detecting glaucoma, GCIPL shows similar diagnostic potential compared with RNFL. For early glaucoma diagnosis, average RNFL is the most important parameter, while screening early glaucoma, average GCIPL should be paid more attention.

Objective To make a comprehensive evaluation of nano-composite of poly(L-lactide) and surface grafted hydroxyapatite(PLLA/PLLA-gHA) as a new material.Methods According to the evaluated critera of medical implanted materials biology and animal trial recommended in GB/T 16886 and IS0 10993 criterion,the new material was carried out on acute systemic toxicity test,haemolysis test,muscular implantation test and subcutaneous injection test.The extract liquid of new material was injected into mice by vena caudalis to test common station,toxic reaction of it at different time,the results were used to evaluate the acute systemic toxicity.Fresh anticoagulant cony blood was mixed with extract liquid of new material with density of 100 g?L-1 to measure each absorbance with spectrophotometer and work out the corresponding rate of haemolysis.The red punctuation and hydropsia of rabbits were observed at different time by subcuntaneous injecting extract liquid into the back of rabbits.PLLA/PLLA-gHA composite plates were implanted into the sacrospinal muscle of rabbits.Cony venous blood was extracted to detect indicatrix of hematology at diferrent time.The material and surrounded tissues were taken out from animals at the 14th,30th,60th,90th,180th,360th day to examine anatomic and pathological changes.Results Rabbits with PLLA/PLLA-gHA composite had good general condition.There was no any acute systemic toxicity in vivo.Data of AST and Scr had no significant difference between experimental group and control group.The hemolysis rate of extrac liquid was 1.22%,which was under the standard criteria(5%).No red punctuation and light hydropsia were observed at different time in the subcutaneous injection test.The inflammation cytochange of PLLA/PLLA-gHA composite group was similar with that of control group in early days,which was met with the general regularity of inflammatory outcome.The fibrosis membrane surrounding the PLLA/PLLA-gHA composite became thinner gradually with the elongation of implantation time.The fibrosis membrane grew into the material at the 360th day.The degree of the fibrosis membrane was below class Ⅰ.Conclusion The new absorbable type PLLA/PLLA-gHA composite has excellent biocompatibility and security.

Objective To investigate the effects of ginsenoside Rg3 (GS-Rg3) on the hypertrophic scars of rabbit ears and provide experimental foundation for study on its inhibition on the hypertrophic scars. Methods Hypertrophic scars were proved on 24 white rabbits,of which the whole level of the skin was excised for 2 cm?2 cm,4-6 points for each ear,controlled by itself. GS-Rg3 0.1 mL(concentration 3 g?L-1) was injected into experimental group and the same volume of saline solution into control group,once every three days regionally. The scar tissues were collected 2,4 and 6 weeks after the injection respectively,the thickness of the scar,structure under the microscope,and the expressions of PCNA,Bcl-2 and Bax were observed. Results In control group,three weeks after the epithelization of the wound,the thickness of the hypertrophic tissue was 3-4 times of ventro ear skin. Under microscope,the dermis was hyperplasia and got thicker,consisted with amount of fibroblast cells,collagen and vessels,the collagen was untidy,nodule or vortex,and the cartilage could be observed in some region.In experimental group, six weeks after the injection,the skin got thinner,the collagen became neath and the quantity of the vessels decreased. In the hypertrophic scars,there was high expression of PCNA,the percent of positive cells was higher (39.55%?6.07%) compared normal tissue (11.18%?1.71%).In GS-Rg3 group,the expression of Bcl-2 was gradually decreased two weeks after injection and obviously decreased six weeks later,there was significant difference compared with before injection (P

OBJECTIVE: To further define the modulation effect of signal transducers and activators of transcription 3 (STAT3) in adriamycin-resistant breast cancer and to promote the clinical application of the inhibitors of STAT3 in reversing multidrug resistance in cancer. METHODS: Firstly, the levels of STAT3 and phosphorylated STAT3 (pSTAT3) expression in clinical breast cancer tissue samples were determined by Western blotting. The expression of STAT3 and pSTAT3 in adriamycin-sensitive and adriamycin-resistant breast cancer cell lines was evaluated by RT-PCR and Western blotting. Secondly, the expression of STAT3 was detected by Western blotting after blocking the STAT3 signal pathway with small interfering RNA targeting STAT3 (STAT3-siRNA). Finally, after the expression of STAT3 was blocked by STAT3-siRNA, immunofluorescence was performed to study the proliferation activity of breast cancer cells and MTT was used to determine the IC50 of the cells in order to observe whether STAT3-siRNA had any inhibitory effects on the growth of breast cancer cells and whether it could promote the efficacy of adriamycin in breast cancer cells. RESULTS: STAT3 and pSTAT3 were highly expressed both in clinical breast cancer tissue samples and in adriamycin-sensitive-and-resistant breast cancer cells. The expression of pSTAT3 in adriamycin-resistant breast cancer cells was significantly higher than in adriamycin-sensitive breast cancer cells. STAT3-siRNA conspicuously decreased the expression of STAT3 protein and inhibited the growth of adriamycin-sensitive breast cancer cells. Compared with the single application of adriamycin, IC50 of adriamycin-resistant breast cancer cells decreased by 4 fold when adriamycin was used in combinaiton with STAT3-siRNA. Meanwhile, an inhibition of the expression of the anti-apoptotic protein mediated by STAT3 was observed in adriamycin-resistant breast cancer cells. CONCLUSION: This study reveals that the development of breast cancer is related to the activation of STAT3. The activation of STAT3 in adriamycin-resistant breast cancer cells was more notable than in adriamycin-sensitive cells. The inhibition of the STAT3 pathway could improve the adriamycin sensitivity of adriamycin-resistant breast cancer cells and lead to their apoptosis. The RESULTS of this study explores the feasibility of the reversal of drug resistance in cancer by blocking STAT3 pathway and establishes the experimental basis for promoting the clinical use of the inhibitors of STAT3 pathway and the chemotherapeutics to overcome the multidrug resistance in cancer.

Objective To investigate the expression and signification of B-cell lymphoma/leukemia-2(bcl-2),bax and ER proteins in epithelial cells in different depth of adenomyosis.Methods Expression and correlation of bcl-2,bax and ER proteins were detected by immunohistochemistry staining in 36 adenomyosis cases with superficial (＜ 1/2 depth of penetration) and deep (≥ 1/2 depth of penetration)ectopic endometrium and eutopic endometrial tissues matched with 30 cases with benign ovarian tumor,uterine septum,pelvic floor dysfunction without adenomyosis as controls.Results (1) The expression of ER protein in superficial and deep ectopic tissues (5.04 ±0.24,4.91 ±0.16) were found significantly lower than 6.06 ± 0.36 in eutopic tissues (P ＜ 0.01) and higher than 3.70 ± 0.58 in control group (P ＜ 0.05).There was no statistical difference of ER expression in superficial and deep ectopic endometrium (P ＞ 0.05).(2) The level of bcl-2 protein of 5.6 ± 0.4 in superficial and 6.0 ± 0.3 in deep myometrium of ectopic tissues were significantly higher than 3.6 ± 0.4 in eutopic tissues and 1.9 ± 0.4 in control group (P ＜ 0.01).(3) The level of bax protein of 3.50 ± 0.28 in superficial and 4.80 ± 0.29 in deep myometrial ectopic and 4.43 ± 0.37 in eutopic tissues were significantly lower than 6.18 ± 0.65 in control groups (P ＜0.05).The expression of bax in superficial myometrium is significantly lower than deep myometrium in ectopic tissues (P ＜0.01).(4) The positive correlation between the expression of ER and bcl-2 protein at superficial myometrium of ectopic tissues (r =0.720,P ＜ 0.01).And there was no significant correlation with the expression of ER and bax protein at superficial myometrium (r =0.008,P ＞ 0.05).As well as,there was not significant correlation with the expression of bcl-2,bax and ER protein at deep myometrium (r =0.089,r =-0.023,P ＞ 0.05).The expression of bax protein in ectopic endometrium was positive correlation with the depth of adenomyosis penetration (r =0.736,P ＜ 0.01).There was positive correlation between the expression of ER and bcl-2 protein at normal endometrium (r =0.453,P ＜ 0.05).And there was negative correlation between the expression of ER and bax protein at control group (r =-0.514,P =0.05).Conclusion The bax protein expression of ectopic endometrium in deep adenomyosis was higher than superficial adenomyosis.

OBJECTIVETo observe the inhibitory effect of a eukaryotic expression vector expressing human IFN-gamma (pcDNA3.1- IFN-gamma) on HBV replication in hepG2.2.15 cells.

METHODSThe eukaryotic expression vector expressing human IFN-gamma was constructed using PCR and gene recombination technique. hepG2.2.15 cells were transfected with pcDNA3.1-IFN-gamma and the culture supernatant was collected to determine the expression of IFN-gamma protein by ELISA. The HBV DNA copies and the concentration of HBeAg and HBsAg were measured by fluorescence real-time PCR and ELISA kit, respectively.

RESULTSCompared with that of negative control and blank 2.2.15 cells, the concentration of HBeAg in the supernatant of 2.2.15 cells transfected with pcDNA3.1- IFN-gamma were decreased by 49%, and HBsAg concentration was lowered by 35% and 33%, respectively. A significant decrease of HBV DNA copies was observed in pcDNA3.1- IFN-gamma-transfected cells in comparison with the two control cells. No significant differences were noted in all the results between the two control groups.

CONCLUSIONWe have successfully constructed the eukaryotic expression vector expressing human IFN-gamma, which provides a basis for anti-HBV gene therapy using human IFN-gamma.

Genetic Vectors ; Hep G2 Cells ; Hepatitis B virus ; drug effects ; Humans ; Interferon-gamma ; genetics ; pharmacology ; Transfection ; Virus Replication ; drug effects

Objective To evaluate the effect of transitional care intervention on quality of life for patients with chronic obstructive pulmonary disease (COPD). Methods The Cochrane library, PubMed, Embase, Chinese biomedical literature database(CBM), Chinese scientific journals full-text database, Wanfang data were searched up to June 2015 to identify randomized controlled trials(RCTs) comparing continuity of patient care with conventional treatment.The data were analyzed using Revman 5.2 software. Results 26 RCTs involving 2 443 participants were included.The results of Meta-analysis showed continuity of care couldreduce the scores of The COPD Assessment Test [ SMD=-2.24, 95%CI=(-3.52--0.96), P<0.01],and St George′s Respiratory Questionnaire [SMD=-0.26, 95%CI(-0.50--0.02), P≤0.05], and could improve the scores of Chronic Respiratory Disease Questionnaires [SMD=0.46, 95%CI(0.08-0.84), P≤0.05]. Conclusions Transitional care can improve the quality of life of patients with COPD.

Objective: To investigate the effect of Sijunzi Decoction extract (SDE) on the growth of human triple negative breast cancer (TNBC) cell line MDA-MB-468. Methods: MDA-MB-468 cells were treated with different concentrations of SDE. The effect of SDE on the proliferation and migration of the cells were detected by CCK-8 assay and the cell wound healing assay. The colony formation assay was performed to analyze the effect on the ability of colony formation of the cells with SDE. Hoechst 33342 staining technique and flow cytometry (FCM) were used to detect apoptosis and cell cycle of the cells. Western blotting was used to detect the expression levels of STAT3, which was related with the proliferation and apoptosis of cells. Results: Compared with the control group, SDE had a certain inhibitory effect on MDA-MB-468 cells (P < 0.05), and it was dependent on the concentration and time. Cloning formation experiments showed that SDE inhibited the clonality of the cells. The cell migration experiment showed that the wound healing ability of the cells could be weakened by the extract with the medium and high dosage (P < 0.001). The results of FCM showed that the apoptosis rate of all SDE dosage increased gradually in a dose-dependent manner. And SDE with the medium and high dosage induced apoptosis of the cells significantly (P < 0.01 and 0.001). Cell cycle was affected by SDE with the obvious reduction of the cells in G2 phase (P < 0.01). The results of Western blotting showed that the expression level of STAT3 was decreased significantly. Conclusion: SDE inhibited the proliferation and clonal formation of MDA-MB-468 cells, inhibited migration, promoted apoptosis and decreased the cells of G2 phase. which may be related to the regulation of STAT3 pathway.

This study was aimed to select the best preparation form of Aurea Helianthus in order to provide a scientific basis for research and development of anti-myocardial ischemia drugs.The content of effective index components of preparation of Aurea Helianthus was detected using HPLC-PDA.Acute myocardial ischemia rat model introduced by injecting pituitrin was used to investigate the effect of anti-myocardial ischemia.The quality of preparation from Aurea Helianthus was characterized based on pharmacy and efficacy.And the characterized results were given correlation analysis.The results showed that the HPLC method for quantitative determination was verified by methodology.The average recoveries were in the range of 97.04％-102.44％.All three preparations of Aurea Helianthus had the efficacy of anti-myocardial ischemia in varying degrees.The enrichment had the highest effect with lowest extraction rate and the lowest dosage,which was the best form in medicinal-preparation application of Aurea Helianthus.It was concluded that the content of related drug components was higher with unique proportion in enrichment of Aurea Helianthus which was prepared based on drug system proved a high quality medicine.Therefore,the key to the improvement of efficacy was to explore the fittest proportion and improve the content of related pharmaceutical ingredients pertinently according to drug system.

OBJECTIVETo evaluate the effect of cochlear implantation with REZ-I straight electrodes on residual hearing of postlingually deafened adults, and to explore the audiologically safety and injury characteristics of cochlear implantation.

METHODSSixteen unilateral REZ-I (22 channels) cochlear implantation recipients from September 2009 to December 2009 were picked out. Their pre-and post-implantation audiometry data including pure-tone audiometry (PTA), auditory steady-state responses (ASSR), auditory brainstem responses (ABR) and distortion product otoacoustic emissions (DPOAE) were retrospectively analyzed, in order to compare the change between pre- and post-implantation residual hearing.

RESULTSAmong the 12 recipients who had some measurable residual hearing before implantation, 5 (41.6%) patients had conserved some measurable hearing but the other 7 (58.4%) recipients had lost all measurable hearing after implantation on the implanted side. The implanted ears had an average PTA threshold drop of 9.5 dB HL and a statistically significant difference between pre- and post-implantation (P < 0.05) PTA thresholds in the frequencies of 250 Hz, 500 Hz, 1000 Hz, 2000 Hz and 4000 Hz. Compared to non-implanted ears, the drop in 500 Hz and 1kHz had a statistically significant difference between pre- and post-implantation PTA thresholds (P < 0.05). The ASSR residual hearing threshold elevation were statistically significant (P < 0.05) between pre- and post-implantation ASSR at 250 Hz and 500 Hz on the implanted side, while the The ASSR residual hearing threshold elevation were statistically significant (P < 0.05) at 500 Hz when compared to non-implanted side. The difference of residual hearing between pre- and post-implantation was not statistically significant for both DPOAE and ABR.

CONCLUSIONThere will be a certain degree of damage to residual hearing of the implanted side following REZ-I cochlear implantation.

Adolescent ; Adult ; Audiometry, Pure-Tone ; Cochlear Implantation ; adverse effects ; Cochlear Implants ; Deafness ; physiopathology ; surgery ; Evoked Potentials, Auditory ; Female ; Hearing ; Humans ; Male ; Middle Aged ; Otoacoustic Emissions, Spontaneous ; Retrospective Studies ; Treatment Outcome ; Young Adult