Adult ; Ammonia ; poisoning ; Female ; Humans ; Microscopy, Electron ; Poisoning ; complications ; Respiratory Function Tests ; Respiratory System ; drug effects ; pathology ; ultrastructure ; Time Factors

AIM: To investigate the ethanolic and aqueous extracts from Sancao prescription (Spica prunellae, Oldenlandia diffuse (willd) Roxb, Herba agrimoniae) on the proliferation of human lung adenocarcinoma cell line (A549). METHODS: 95% ,60% and 30% ethanolic extract and aqueous extract were prepared from Sancao pre-scription. The MTT assay was used to determine the inhibitory action against the proliferation of A549. RESULTS: IC_(50) of 60% ethanolic extract over A549 was one of the lowest in extracts. Combination of 60% and 90% ethanolic extract showed the synergistic antitumour activity. CONCLUSION: Ethanolic extract of Sancao prescription has and effect on human hung adenocarcinoma(A549).

Objective To evaluate the efficacy and safety of near-infrared light combined with tacrolimus 0.1％ ointment in the treatment of facial glucocorticoid-dependent dermatitis.Methods A total of 68 patients with facial glucocorticoid-dependent dermatitis were enrolled from Department of Dermatology of Yantai Yuhuangding Hospital between December 2014 and December 2015,and randomly and equally divided into treatment group and combination group by a random number table.The treatment group was treated topically with tacrolimus ointment twice a day for 4 weeks.Besides the treatment with tacrolimus ointment,the combination group was irradiated with near-infrared light once a week for 4 sessions.After 4-week treatment,improvement in clinical manifestations such as itching and burning sensation was evaluated,so was the therapeutic effect.Results The combination group showed significantly higher response rate (85.3％ [29/34]) compared with the treatment group (61.8％ [21/34],x2 =4.84,P ＜ 0.05).Additionally,response rates for itching and burning sensation,erythema,scales and papules were all significantly higher in the combination group than in the treatment group (x2 =4.84,6.35,8.42 and 5.52,respectively,all P ＜ 0.05).Conclusion Near-infrared light combined with tacrolimus ointment is effective and safe for the treatment of facial glucocorticoid-dependent dermatitis.

BACKGROUND: The extramedulary fixation system including dynamic hip screw (DHS) is commonly used in treatment of Intertrochanteric fracture. However, in patients with unstable intertrochanteric fracture, extramedulary fixation system often leads to the failure of fracture fixation. Intramedulary fixation system including both proximal femoral nail antirotation (PFNA) and InterTan nail has been widely used in the treatment of unstable intertrochanteric fractures. OBJECTIVE:To compare the therapeutic effects of extramedulary fixation system containing DHS, PFNA and InterTan nail in the treatment of intertrochanteric fracture. METHODS:Literatures were searched in Wanfang, PubMed, Embase, Medline, the Cochrane library to screen literatures published from January 1990 to November 2014. Relevant studies addressing extramedulary fixation system containing DHS, PFNA and InterTan nail were screened. RESULTS AND CONCLUSION: 346 articles were screened, and 13 of them were in accordance with the inclusion criteria. 1 271 patients with different types of intertrochanteric fracture were assessed in this study. Compared to DHS group, patients treated with PFNA and InterTan nail had shorter operation time and less blood loss. No significant difference in rehabilitation time and Harris score was detected among three kinds of fixation methods. Additionaly, PFNA and InterTan nail had a similar effect. These findings verify that compared with DHS, PFNA and InterTan nail can optimize the surgery, but cannot elevate postoperative outcomes.

OBJECTIVE:To establish the method for the simultaneous determination of anticancer activity components of flavonoids from Hedyotis diffusa,i.e. quercetin,kaempferol. METHODS:HPLC was applied to determine the contents and performed on Alltima C18(250 mm?4.6 mm,5 ?m) column. Mobile phase consisted of methanol(A)-0.5% glacial acetic acid,(gradient elution). The detection wavelength was aet at 350 nm. RESULTS:The linear range of quercetin was 0.006 2～0.244 0 ?g(r=0.999 8)and that of kaempferol 0.007 8～0.310 6 ?g(r=0.999 9). The average recovery of quercetin was 101.84%(RSD=1.79%,n=6) and that of kaempferol 99.04%(RSD=2.90%,n=6). CONCLUSIONS:The method is simple,accurate and reproducible for the quality control of H. diffusa.

The mechanism of chromium accumulation and microstructure transformation of the fused yeast were studied in this paper.The result showed that the process of Cr6+ reduction and adsorption was accom-panied by the H+ consumption.The main adsorptive groups on the strain surface included amino,hydroxyl,phosphate group and amide,among which phosphate group played vital role in the chromium accumulation.The removal rate of chromium and reduction rate of hexavalent chromium declined 70% and 46%,respec-tively,when phosphate group was masked.During the adsorption process the chromium ions complexed on the surface of fused yeast was transported into the cell wall and combined with inclusion to form steady spe-cies and this took 90 min to reach the equilibrium.The biosorption and reduction of Cr on the cell surface would alter microstructure of cell surface,reduce cell membrane potential and increase cell membrane per-meability.

Effects of Cr 6+ concentration and culture time on four heavy metal removing strains,stability of these four strains removing Cr 6+,configuration changes inside or outside their cells,effects of Cr 6+ on soluble reductive sugar inside their cells,and effect of several factors on these strains had been studied,and the Cr 6+ resistance mechanisms of these strains have been discussed elementarily. The results showed that the Lethality of these strains caused by Cr 6+ was similar with one another, namely, increasing at first, then decreasing, and finally increasing again as culture time passed. Acclimatization of Candida sp. was better than Sporobolomycetaceae sp.,and the Cr 6+ resistance of Sporobolomycetaceae sp. 7-3 was the best of the four. The research also demonstrated that the metabolic activity of these strains had been influenced by Cr 6+ in a certain extent. Scanning electron microscopy,transmission electron microscopy,and atomic force microscopy observations approved that removal of Cr 6+ by Candida sp. was depended on both surface adsorption and intracellular accumulation. Effects of Cr 6+ concentration, pH, culture time, nitrogen source, carbon source and adsorption time on these strains are not the same.

A biosurfactant-producing strain(S_6)was isolated from oil-containing wastewater in oxidation ditch and identified as Pseudomonas aeruginosa based on physiological and biochemical experiments and 16S rDNA sequence analysis.Infrared spectrum analysis revealed that S_6 produced glucolipid in the process of metabolism.It was observed that S_6 decreased the surface tension of water from 72 mN/m to 33.9 mN/m with the critical micelle concentration(CMC)of 50mg/L.The measurement of oil displacement and surface tension demonstrated that the fermented liquid had stable surface activity at varying range of salinity,pH,amount of dissolved oxygen.The optimal culture condition was obtained through orthogonal experiment:glucose 10g/L,urea 5g/L,KH_2PO_4 1g/L,liquor of microelement 2mL,pH 8.0,water 1000mL;and the biosurfactant production under optimal culture condition was 0.173g/L.

Background Granulocyte colony-stimulating factor(G-CSF)has been reported to have beneficial effect on cardiac dysfunction in post infarction and doxorubicin-induced cardiomyopathy.Objective To investigate the effects of G-CSF on cardiac remodeling in cardiac hypertrophy induced by angiotensin Ⅱ(Ang Ⅱ).Methods Thirty-six male wild type mice(WT)were allocated randomly to receive subcutaneously G-CSF(10 ?g/kg per day, n=9),or Ang Ⅱ(2.88 mg/kg per day,n=9),or Ang Ⅱ plus G-CSF(Ang Ⅱ 2.88 mg/kg+G-CSF 10 ?g/kg,n =9)for 4 weeks with untreated WT(n=9)as controls.Blood pressure and cardiac function were measured. Heart weight/body weight ratio,myocyte cross-sectional area and fibrosis area were determined.The mRNA ex- pression of osteopontin(OPN)in myocardium was detected by RT-PCR.The expressions of angiotensin converting enzyme(ACE),ACE2 and phosph-p70S6 kinase protein in myocardium were assessed by Western-Blot.Results Ang Ⅱ significantly elevated blood pressure(SBP,Ang Ⅱ:139.7?1.6 vs WT:108.7?2.3 mmHg,P0.05),but significantly attenuated the myocyte cross-sectional area(Ang Ⅱ+G-CSF:181.06?0.11 vs Ang Ⅱ:202.02?0.16 ?m~2,P

A new experiment curriculum system of environmental microbiology was established centering on applied microbiology in environmental protection field and emphasizing on design and research experi- ments to motivate the students’ interests for the course, which helped them to improve their ability of think- ing independently and creatively as well as their practicing ability.