Objective To explore the characteristics of type 1 diabetic mice models induced by multiple low dcee streptozotoein(MLD-STZ).Methods Type 1 diabetic mice models was induced with intraperitoneally injection of STZ(40mg/kg body weight,daily)for 5 consecutive days and detected fasting blood glucose,urine glucose and histological ehange of panereata.Results The incidence of type 1 diabetes mdlitus was 65%;compared with normal control group,blood glucose and urine glucose levels increased significantly and histological analysis of pancreata showed marked insulitis in diabetic model group,and the hyperglycemia maintained from the fourth to the eighth week after the firml STZ injection.Conelnsion Type 1 diabetie mice models could be made successfully by MLDSTZ,and the hyperglycemia could maintain for a rather long time.

Meniere's disease (MD), a kind of common disease of otology, is based on the endolymphatic hydrops. The clinical features of MD are intermittent episodes of vertigo, fluctuating sensorineural hearing loss, tinnitus and ear fullness. With the in-depth exploration of the disease, the diagnosis and treatment of MD has made a series of research results. In this paper, the related literature and research reports in recent years were reviewed.
Endolymphatic Hydrops ; Hearing Loss, Sensorineural ; Humans ; Meniere Disease ; diagnosis ; therapy ; Tinnitus ; Vertigo

Objective To explore the distribution features of pathogenic spectra and antibiotic resistance of the isolates from blood cultures in hospital from June 2012 to June 2016.Methods A total of 4 238 blood samples from June 2012 to June 2016 were evaluated by BD Bactec FX-200,the identification results were used for retrospective analysis.Results A total of 455 positive pathogens were isolated from 4 238 blood cultures sample,the positive rate was 10.74％,Gram-positive accounts for 38.02％,Gram-negative bacilli accounts for 60.00％,Fungi accounts for 1.98％.Positive pathogens were distributed in newborn baby and middle-older patients,accounting for 6.78％ and 76.17％respectively.Which the Enterobacteriaceae accounting for 54.10％,the major consists were Escherichia coli and Klebsiellapneumoniae;Non-fermentative bacterial which consists of Pseudomonas aeruginosa and Acinetobacterbaumannii accounting for 2.90％.The major pathogens in Gram-positive cocci was Staphylococcus,accounting for 25.87％.Enterobacteriaceae were more sensitive to Meropenem,Imipenem and so all.Non-fermentative bacterial were more sensitive to Piperacillin/Tazobactam.Staphylococcus were more sensitive to Vancomycin and Linezolid.Streptococcus were sensitive to Vancomycin.Conclusion Combined with the distribution features of pathogenic spectra and antibiotic resistance,clinicians should pay attention to use of drugs reasonably to enhance the cure rate of bacteremia and Fungalemia.

Objective To investigate underdiagnosis problem of chronic obstructive pulmonary disease (COPD) in China.Methods Articles published during January 1 st,2000 and December 30th,2011were searched in Wanfang Database and Medline,search words including COPD and epidemiology survey.The papers were then reviewed,and those original contirbutions with sample size ≥ 1000 and strict quality control entered into the final analysis.Results Only 32.90％ (1095/3328) COPD patients had ever been diagnosed to have emphysema,bronchitis or COPD,and only 9.13％ (237/2597) had undergone lung function test.About 65.40％ (2306/3526) COPD patients were presented with at least one of the following symptoms:cough,phlegm and breathlessness.Stage Ⅰ or Ⅱ COPD was found in 74.52％ (1802/2418)patients.Conclusion Underdiagnosis of COPD was quite common in China,and patients with stage Ⅰ or Ⅱ COPD should have deserved early diagosis.

BACKGROUND:Compared with mesenchymal stem cells from bone marrow and fat, human umbilical cord-derived mesenchymal stem cells, as one of the most potential cellsources to repair the central nervous system, are easy-based, more primitive, and not limited by ethical and legal.
OBJECTIVE:To explore differentiation of human umbilical cord-derived mesenchymal stem cells into neural stem cells induced by the recombinant human basic fibroblast growth factor and recombinant human epidermal growth factor.
METHODS:The human umbilical cord-derived mesenchymal stem cells were induced by basic fibroblast growth factor and epidermal growth factor in vitro. The cellmorphology was observed by invert microscope. The differentiation status was detected by immunofluorescence. The Nestin expression in mRNA level before and after induction was detected by real-time PCR.
RESULTS AND CONCLUSION:The neural stem cellbal s were observed after induction. And the Nestin was detected by immunofluorescence and real-time PCR. Nestin could further differentiate to the neuronal markproteins neuron-specific enolase, microtubule-associated protein 2 protein and glial fibril ary acidic protein. Results from this study show that basic fibroblast growth factor and epidermal growth factor can induce human umbilical cord-derived mesenchymal stem cells to differentiate to neural stem cells, neurons and glial cells.

0.05).After 30 minutes treatment,93% patients in labetalol group reached goal blood pressure(0.05).However,tachycardia was significantly(P

Objective To evaluate the effect of total glucosides of paeony (TGP) on the expression of interleukin-18 (IL-18) in human HaCaT keratinocytes,and to explore the roles of extracelluar signal-regulated protein kinase1/2 (ERK1/2) and c-Jun N-terminal kinase 1/2 (JNK1/2) signaling pathways in the effect.Methods Some cultured human HaCaT keratinocytes were classified into three groups:control group treated with dimethyl sulfoxide (0.031％),TGP groups treated with 6 different concentrations (0.5,2.5,12.5,62.5,125.0 and 312.5 mg/L) of TGP respectively,inhibitor groups treated with TGP of 125 mg/L after 2-hour pretreatment with PD98059 (an ERK1/2 inhibitor) and SP600125 (a JNK1/2 inhibitor) of 10 μmol/L respectively.After additional culture for 48 hours,reverse transcription (RT)-PCR was performed to measure the mRNA expression level of IL-18,and enzymelinked immunosorbent assay (ELISA) to determine the level of IL-18 protein in the culture supematant of HaCaT cells.Some HaCaT keratinocytes were classified into two groups to be treated with TGP of 125 mg/L for 15,30 and 60 minutes with or without the pretreatment with PD98059 and SP600125 of 10 μmol/L; then,Western blot was carried out to determine the phosphorylation levels of ERK1/2 and JNK1/2 in HaCaT cells.Results The levels of IL-18 mRNA and protein in culture supernatant were significantly increased by TGP of 0.5 and 2.5 mg/L,but decreased by TGP of 62.5 and 125.0 mg/L,and TGP of 125.0 mg/L showed the strongest inhibitory effect.After treatment with TGP of 125.0 mg/L,the level of phosphorylated ERK1/2 in HaCaT cells peaked at 15 minutes (0.448 ± 0.018),decreased to 0.213 ± 0.005 at 30 minutes and 0.217 ± 0.005 at 60 minutes,with significant differences between TGP-treated and untreated cells at 15 minutes (0.448 ± 0.018 vs.0.204 ± 0.005,P＜ 0.05) but not at 30 or 60 minutes (both P ＞ 0.05).The phosphorylation level of ERK1/2 was 0.237 ± 0.010 in HaCaT cells pretreated with PD98059 prior to the treatment with TGP,significantly different from that in HaCaT cells treated with TGP only (P ＜0.01).TGP of 125.0 mg/L had no obvious effect on JNK phosphorylation,and there was no significant difference in the level of phosphorylated JNK1/2 between HaCaT cells untreated and those treated with TGP of 125.0 mg/L for different durations (all P ＞ 0.05).Conclusions TGP can inhibit the expression of IL-18 mRNA and protein in HaCaT cells,likely through the ERK1/2 signaling pathway.

Objective To investigate the difference of curative effects between the complete video assisted thoracic surgery (C-VATS)and traditional open surgery in the treatment of elderly patients with lung cancer,and to clarify the specially curative effect of C-VATS.Methods 80 patients with lung cancer without diabetes mellitus,chronic brouchitis and heart diseases aged over 65 years were enrolled in the study.They were divided into C-VATS group and open surgery for lobectomy (OPEN)group (n=40)according their wishes.The operation time,number of lymph nodes removed,amount of intraoperative blood loss,postoperative thoracic drainage,chest tube duration, postoperative hospitalized time, postoperative pain degree, incidence of postoperative complications, preoperative and postoperative sedentary heart rate (HR)of the patients in two groups were compared.Results The operation time in C-VATS group(193.12 min±59.06 min)was longer than that in OPEN group(167.17 min±54.01 min) (P<0.05),and the number of lymph nodes removed in C-VATS group(14.6±7.5)had no significant difference compared with OPEN group(15.2 ± 4.5)(P>0.05).The postoperative pain degree in C-VATS group(2.54 ± 0.12)was lower than that in OPEN group(4.61 ± 0.10)(P<0.05);the postoperative chest rube duration in C-VAS group(6.14 d ± 3.32 d)was short than that in OPEN group (11.67 d ± 4.13 d);the postperative hospitalized time in C-AVA group(8.52 d±3.25 d)was shorter than that in OPEN group (14.76 d±6.11 d)(P<0.05).There were no significant differences of intraoperative blood loss(231.28 mL±203.15 mL vs 213.33 mL± 187.18 mL),postoperative thoracic draginage(1 597.83 mL± 1 049.29 mL vs 1 690.68 mL± 1 043.37 mL), incidence of postoperative complications between C-VATS group and OPEN group(P>0.05).The postoperative sedentary HR in C-VATS group and OPEN group were significantly higher than preoperative;the postoperative sedentary HR recovered to the preoperative level 3 d after operation in C-VATS group and it recovered to the preoperative level 7 d after operation in OPEN group. Conclusion Compared with traditional open thoracic surgery, C-VATS owns the characteristics such as less trauma, less pain, less hospital stay and better postoperative recovery in the aged patients with lung cancer.

Objective To explore the effects of continuous renal replacement therapy (CRRT) on the changes of the respiration and blood circulation as well as peripheral blood cytokines levels in patients with severe acute pancreatitis(SAP) complicated with acute respiratory distress syndrome.Methods 48 SAP patients complicated with acute respiratory distress syndrome were divided into control group and CRRT treatment group according to the parallel control design principle.The control group was treated with routine way,and the CRRT treatment group was treated with CRRT on the basis of routine way.The clinical data and the levels of IL-6,IL-1β,TNF-α were compared between the two groups.Results The levels of IL-6,TNF-α were significantly lower in the CRRT treatment group than those in the control group in 12h [(147.72 ± 22.06) ng/L vs.(132.27 ± 18.03) ng/L,t =2.315,P＜0.05;(236.08 ±41.29) ng/L vs.(208.79±39.25)ng/L,t =2.406,P ＜0.05].The levels of IL-6,IL-1β,TNF-α were significantly lower in the CRRT treatment group than those in the control group in 24h [(136.57 ± 30.74) ng/L vs.(109.98 ± 35.83) ng/L,t =2.184,P ＜ 0.05;(35.76 ± 8.57) ng/L vs.(28.96 ±3,95) ng/L,t =2.237,P ＜0.05;(219.81 ±36.06) ng/L vs.(173.48 ±48.19) ng/L,t =2.206,P ＜0.05].The level of PaO2/FiO2 was significantly higher in the CRRT treatment group than that in the control group in 24h[(139.89 ±35,61) vs.(173.12 ±21.84),t =2.913,P ＜0.01].The levels of Ppeak,IL-1β were significantly lower in the CRRT treatment group than those in the control group in 48h [(28.96 ± 4.14) cmH2 O vs.(24.73 ± 8.52) cmH2 O,t =2.518,P ＜0.05;(29.87 ±5.12) ng/L vs.(23.57 ±3.91) ng/L,t =2.427,P ＜0.05].The levels of IL-6,TNF-αwere significantly lower in the CRRT treatment group than those in the control group in 48h [(117.60 ± 23.46) ng/L vs.(88.56 ± 13.02) ng/L,t =3.062,P ＜ 0.01;(205.25 ± 46.14) ng/L vs.(141.63 ± 33.80) ng/L,t =3.174,P ＜0.01].The level of PaO2/FiO2 was significantly higher in the CRRT treatment group than that in the control group in 48h [(148.07 ± 25.64) vs.(193.23 ± 29.60),t =2.983,P ＜ 0.01].There were no significant differences between the control group and CRRT treatment group in PaO2/FiO2,Ppeak,IL-6,IL-1β,TNF-α before treatment [(103.68±29.65) vs.(107.07 ±25.13),t =0.359,P ＞0.05;(34.62 ±7.36)cmH2O vs.(35.18 ±4.04)cmH2O,t =0.416,P ＞0.05;(152.61 ±31.53)ng/L vs (150.74 ±30.26) ng/L,t =0.668,P ＞0.05;(40.06 ±5.15) ng/L vs.(38.09 ±10.13) ng/L,t =0.819,P ＞0.05;(226.85 ±37.62) ng/L vs.(225.47 ±39.02) ng/L,t =0,702,P＞0.05].Conclusion CRRT can effectively reduce the plasma levels of IL-6,IL-1β,TNF-α in SAP patients complicated with acute respiratory distress syndrome,it has therapeutic effect on the respiration through changing the cytokines of SAP patients complicated with acute respiratory distress syndrome.

Objective: To investigate the effects of Ginkgo biloba extract 50 (GBE50) preconditioning on contents of inflammation-related cytokines in rats with myocardial ischemia-reperfusion. Methods: Fifty-eight SD rats were divided into sham-operated group, untreated group, Salviae miltiorrhizae (SM) injection group and low-, medium- and high-dose GBE50 groups. After intragastric administration for 7 d, the left anterior descending (LAD) coronary artery was occluded for 30 min followed by 60-min reperfusion to induce ischemia-reperfuion injury. Myocardium histopathologic change was observed by HE staining under a light microscope; myeloperoxidase (MPO) activity in myocardium was measured by colorimetric detection; tumor necrosis factor-alpha (TNF-alpha), interleukin-6 (IL-6) and IL-8 were detected by radioimmunoassay; IL-4 and IL-10 were tested by enzyme-linked immunosorbent assay (ELISA). Results: Compared with untreated group, rats in medium-dose GBE50 group had lower inflammatory reaction and MPO activity (P<0.01). GBE50 also decreased the content of IL-6 (P<0.05, P<0.01) and increased the content of IL-4 in myocardium (P<0.05, P<0.01) as compared with the untreated group. The content of TNF-alpha in myocardium in the medium-dose GBE50 group was lower and IL-10 was higher than those in the untreated group, but without significant differences. Conclusion: GBE50 can decrease the content of IL-6 and increase the content of IL-4 in myocardium after ischemia-reperfusion injury. It suggests that GBE50 can regulate the inflammatory reaction after ischemia-reperfusion injury via inhibiting inflammatory cytokines and promoting anti-inflammatory cytokines.