Abstract?AIM: To observe the effects of different antidiabetic therapies on macular thickness in diabetes patients without fundus complication.?METHODS: The macular thickness was measured by optical coherence tomography ( OCT) .The retina volume on the center of macula was scanned, and it generated automatically the average thickness data of three rings and nine areas of 1mm, 3mm and 6mm.The data were statistically analyzed.?RESULTS: Healthy control group, oral hypoglycemic drug group and insulin treatment group were enrolled. Each group included 22 cases 22 eyes.The macular retinal thickness of healthy control group is 268.09±17.97μm (the 1st ring), 340.41 ±22.25μm ( the 2nd ring) and 298.14 ± 12.90μm ( the 3 rd ring ) , respectively. The macular thickness of oral hypoglycemic drug group is 260.00 ± 18.17μm (the 1st ring), 335.44±21.12μm (the 2nd ring) and 295.63 ±15.92μm ( the 3rd ring), respectively.The macular thickness of insulin therapy group is 271.01 ± 26.09μm (the 1st ring), 340.86±17.10μm (the 2nd ring) and 298.57 ±12.14μm ( the 3rd ring ), respectively. Comparison of the macular thickness of the 1st ring among 3 groups was insignificant (F=1.21, P=0.31), neither the comparison of the 2nd ring (F=0.35, P=0.71), neither the comparison of the 3rd ring (F=0.22, P=0.81).? CONCLUSION: Compared with healthy individuals, both oral antidiabetic medicines and insulin therapy don't alter the macular thickness of patients with diabetes while without fundus complication.

Objective To develop a HPLC method for the simultaneous content determination of three terpenoids inMelastoma dodecandrum Lour. (asiatic acid, betulinic acid, oleanolic acid).Methods The chromatographic column was set with waters SunFire C18 column (4.6 mm×150 mm, 5μm); the moving phase was acetonitrile -0.1%H3PO4; the column temperature was 30℃; the detection wavelength was 200 nm; the flow rate was 0.6 ml/min; and the sample volume was 25μl.Results A good linear relationship was observed in the range of 0.310-6.200μg (r=0.9999), 0.405-8.100μg (r=0.9999), 0.169-3.375μg (r=0.9998) for asiatic acid, betulinic acid, oleanolic acid respectively, with the average recovery rates of 102.08%, 101.81%, 102.22%. Conclusions The established method is convenient and sensitive, repeatability and stability, quality evaluation for Melastoma dodecandrum Lour.

[Objective] To study the effects of different growth periods on the contents of volatile oil and the curcumol in Curcuma aromatica Salisb. samples,which provided theoretical bases to control the quality of the crude drug of Curcuma aromatica Salisb.[Method]The contents of volatile oil in Curcuma aromatica Salisb. samples were determined by the method of Pharmacopeia,and HPLC method for determination of curcumol in different samples was established. [Result]The contents of volatile oil in different samples lied in the range of 0.820%～0.471%(g/g),and the contents of curcumol in different volatile oil samples were between 0.862%(g/g) and 1.380%(g/g). [Conclusion]Compared with the Curcuma aromatica Salisb. of a shorter growing period,the contents of longer growth period were higher.Different growing time had effects on the accumulating of volatile oil and the curcumol in Curcuma aromatica Salisb.

Objective To study the clinical effect of Shenkang injection combined with valsartan in the treat-ment of patients with early stage diabetic nephropathy,and its influence on the expression changes of homocysteine ( Hcy) ,transforming growth factor β1 ( TGF -β1 ) , the inflammatory cytokines high sensitive C -reactive protein (hs-CRP),and interleukin-6 (IL-6).Methods 138 cases of early stage diabetic nephropathy were randomly divided into control group ( conventional treatment, valsartan act as antihypertensive drug ) and treatment group ( treated with Shenkang injection combined with valsartan) by digital table.The total effective rate,glycemic index, renal function,levels of Hcy and TGF-β1,expression levels of inflammatory cytokines of two groups were compared. Results The total effective rate of the treatment group (91.30%) was significantly higher than the control group (76.81%) (χ2 =5.004,P<0.05).The values of FPG,2h PG,HbAlc,UAER,CysC and Scr were lower in the treat-ment group compared with the control group (t=4.514,3.743,4.754,6.214,3.925,3.777,all P<0.05).Com-pared with the control group,the concentrations of Hcy,TGF-β1,hs-CRP and IL-6 decreased significantly[ (11. 78 ±1.95)μmol/L vs (9.21 ±1.64)μmol/L,(71.32 ±14.88) mg/L vs (60.04 ±11.75) mg/L,(7.07 ±1.25) mg/L vs (5.81 ±1.14)mg/L,(50.24 ±21.86)pg/mL vs (32.55 ±17.01)pg/mL],the differences were statistical-ly significant (t=8.378,4.942,6.187,5.305,all P<0.05).Conclusion Shenkang injection combined with val-sartan for the treatment of early stage diabetic nephropathy has significant clinical efficacy.It can improve patients're-nal function and reduce blood sugar levels.The effects may be related with inflammatory response inhibition and Hcy, TGF-β1 levels reduction.

Objective To investigate the complications of different enteral nutrition in patients after surgery for massive cerebellar infarction,so as to guide rational application of enteral nutrition in patients.Methods Forty-nine patients with massive cerebellar infarction were divided into three groups randomly:conventional nasogastric tube feeding group (group A,n =12),nasogastric tube feeding plus gastric motor drug group (group B,n =18),and nasojejunal tube feeding group (group C,n =19).The incidences of diarrhea,reflux,aspiration,upper gastrointestinal bleeding and aspiration pneumonia within 3 weeks after initiation of enteral nutrition were observed and compared among the groups.Results The incidence of diarrhea showed no statistically significant difference among the 3 groups (x2 =0.092,P =0.955).Compared with group A,the incidences of reflux,aspiration and aspirafion pneumonia were significantly lower in group B and group C (P ＜ 0.05),and lower in group C compared with group B (P ＜ 0.05).Compared with group C,the incidence of upper gastrointestinal bleeding was significantly lower in group C than in group A and group B (x22 =4.748,P2 =0.029;x23 =4.284,P3 =0.038),but the difference between group A and group B was not significant (x21 =0.000,P1 =1.000).Conclusions Because of the unique pathophysiological features in patients after surgery for massive cerebellar infarction,early enteral nutrition by conventional nasogastric tube feeding may be inappropriate.Nasogastric tube feeding plus gastric motor drug may be applied in mild case with short course of disease.Nasojejunal tube feeding may be the approach of choice for enteral nutrition in critical patients with massive cerebellar infarction for its association with lower incidence of complications.

Objective To analyze the true‐positive results ( ≥ 95% ) S/CO value of Treponema pallidum specific antibody (anti‐TP) positive samples caused by 2 different chemiluminescence detection assay in comparison with Treponema Pallidum Particle As‐say (TPPA) .Methods We collected the Treponema pallidum specific antibody positive samples of outpatient and hospitalization from October 2014 to January 2016 in Peking union medical college hospital as the research objects .There were 145 positive cases of Abbott laboratories (S/CO value of 1 .02 to 39 .29) ,24 positive cases of Roche (S/CO value of 1 .4 to 33 .07) .The 169 cases of Treponema pallidum specific antibody positive samples were detected with two methods of chemiluminescence detection at the same time ,TPPA was performed as repetition and confirmed test .Gathering and sorting the statistics of the positive predictive value seg‐mented ordered by specimen S/CO value ,to determine 95% or higher S/CO value of true positive results .Results After retested and confirmed by TPPA of the 169 positive cases ,the Abbott positive coincidence rate was 78 .7% ,the Roche positive coincidence rate was 81 .3% .When the S/CO value of Abbott ≥ 8 and the S/CO value of Roche ≥ 14 ,the positive predictive value was 100% . Conclusion When the S/CO value of Abbott ≥ 8 and the S/CO value of Roche ≥ 14 ,the S/CO value can be used as the true posi‐tive results( ≥ 95% ) .Abbott laboratories results S/CO value ≥ 8 ,Roche test results S/CO value ≥ 13 ,it is a 95% or higher S/CO limit of true positive results .

Humans ; Vertigo ; therapy

Objective To evaluate the relationship between aberrant crypt foci(ACF) and colon cancer by observing the sequential development of ACF in cancer models of rats. Methods The colon cancer models in 60 Wistar rats were established by subcutaneously injection of dimethylhydrasine (DMH) once a week for 18 weeks. The rats were sacrificed and the colon tissues stained by methylene blue were observed with a stereomicroscope. Results There were two types of ACF, named cACF and dACF. The microscopic findings in dACF were similar with that in early colon cancer, while those in cACF were not. The expression of β-catenin in cACF and dACF were 4. 84% and 100% (P =0. 000) , respectively, and the expression of MMP-7 were 7. 87% and 81.82% (P =0. 000), respectively. There was no significant difference in expression of β-catenin and MMP-7 between dACF and colon cancer ( P ＞ 0. 05 ). Conclusion The microscopic and molecular changes in dACF is similar with that in colon cancer, and dACF may progress to cancer through Wnt pathway.

Objective To observe the expression of aggrecanase 2 and a tissue inhibitor of metalloproteinase 3 (TIMP-3) in degenerate human lumbar intervertebral discs and their role in degeneration of the nucleus pulposus.Methods Pfirrmann classification was used to class degenerate intervertebral discs observed through MRI.They were divided into three groups:a control group (Pfirrmann grade Ⅰ-Ⅱ),a degeneration group (Pfirrmann grade Ⅲ-Ⅳ),and a severe degeneration group (Pfirrmann grade Ⅴ).A total of 45 cases accepted lumbar spine surgery for removing nucleus pulposus specimens.Each group contained 15 cases.After formalin-fixation and paraffin embedding,immunohistochemistry was used to detect aggrecanase 2 and TIMP-3 expression in the nucleus pulposus cells.Results The percentages of cells positive for aggrecanase 2 were (13.58 ± 7.76) ％,(33.48 ± 13.95) ％ and (56.00 ± 18.39) ％ in the control,degeneration and severe degeneration groups respectively.These differences had statistical significance.The percentages of cells positive for TIMP-3 were (34.78 ± 13.80) ％,(46.77 ± 10.98) ％ and (50.65 ± 16.45) ％,and these differences were again statistically significant.The aggrecanase 2/TIMP-3 ratios were also significantly different.Conclusion As the degree of degeneration of the nucleus pulposus increased,the expression of aggrecanase 2 and TIMP-3 rose,which indicates that both changes were closely connected with the degeneration.Their ratio was correlated with the degree of degeneration of the nucleus pulposus.

Objective To investigate the effects of stress associated with nicotine on experimental periodontal breakdown of ligature-induced periodontitis in rats.Methods Forty male Wistar rats with the neck of left maxillary second molar ligated by nylon were used.The animals were randomly divided into four groups:Ni group,0.7 mg of nicotine?kg-1?d-1 (intraperitoneal); S group,stress (immobilization-12 h?d-1); Ni+S group,stress (immobilization-12 h?d-1) associated with an intraperitoneal injection of 0.7 mg of nicotine?kg-1?d-1; C group:saline solution. Two rats of each group were sacrificed at the day of 2,4,6,8,10 separately and the furcation areas of the second maxillary molars were examined histologically and histometrically.Results Intergroup analysis revealed a higher bone loss rate in the animals of Ni+S group compared with the other three groups,the absorption rate of alveolar bone at the day of 6,8,10 in experimental groups were higher than that in C group (P