0.05). Therefore, 3% metronidazle cream and differin gel had the same efficacy with 5% benzoyl peroxide gel, and more safety than 5% benzoyl peroxide gel. Conclusion 3% metronidazle cream is effective and safe in the treatment of acne vulgaris.

Objective To study pre-thrombosis state in patients with cor pulmonale and analyze the value of treatment with low molecular heparin (LMH). Method 46 patients with cor pulmonale were divided into LMH group and routine one. Von Willebrand factor (vWF), prethrombin F 1+2 fragment (F 1+2 ), Fibrinogen (Fg), granule membrane protein (GMP-140) and D-dimer fragment (DD) were detected separately.Result The concentrations of WF,F 1+2 ,Fg,GMP-140 and DD in the patients with cor pulmonale were significantly higher than control. In LMH group, these variables and PaCO 2 decreased and PaO 2 increased markedly after treatment. In routine group, these blood-gas index slightly improved, but no decrease were observed in coagulation variables. Conclusion Early detection and diagnosis of pre-thrombosis state in patients with cor polmanate and timely treatment with LMH can be beneficial to these patients during acute state.

BACKGROUND:Because of osteoporosis, short-segment transpedicular fixation or screw-rod system fixation is prone to screw loosening depending on its poor anti-pul-out strength in patients with thoracolumbar fracture with ankylosing spondylitis.
OBJECTIVE:To probe the clinic outcomes of multi-segment transpedicle spinal fixation for thoracolumbar fractures with ankylosing spondylitis.
METHODS:Eleven patients with ankylosing spondylitis combined with thoracolumbar fracture in the Fourth Department of Orthopedics, Meizhou Hospital, Sun Yat-sen University, China from January 2009 to December 2012 were selected. Al the patients underwent posterior reduction and multi-segment transpedicle spinal fixation, among whom, six cases were subjected to internal fixation through the pedicle of fractured vertebra.
RESULTS AND CONCLUSION:Al of the 11 patients were fol owed up for 13 to 36 months. Solid bone healing was achieved in al of the patients, and there were no complications related to the internal fixation systems such as loosening or breakage. Three cases of spinal cord injury achieved Frankel’s class E from class C recovery. Lumbodorsal pain rate achieved 100%according to the Japanese Orthopaedic Association scoring. Results confirmed that it is effective to treat thoracolumbar fractures with ankylosing spondylitis by posterior reduction and multi-segment transpedicle spinal fixation. Strong internal fixation and fracture union can be achieved by operation.

Objective To assess the clinical efficacy and safety of 1% benadryl and 3 % metronidazle cream in the treatment of topical corticosteroid dependent dermatitis. Methods The study was conducted in a single-blind way. The 86 patients were divided into 3 groups: 1% benadryl and 3 %metronidazle cream (group A), loratadine (group B) and gluco-corticoids (group C). All preparations were applied twice daily for 8 weeks. Study visits took place at baseline and weeks 2, 4 and 8. Results The clinical response rate in the groups A, B and C was 86.20%, 73.33%, and 66.67%, respectively; the clinical response rate in group A was significantly higher than that in groups B and C (P<0.05). Conclusions 1% benadryl and 3 % metronidazle cream are effective and safe in the treatment of topical torticosteroid dependent dermatitis.

Objective To investigate the potential mechanism of interleukin-1β(IL-1β)in H.pylori-related gastric carcinogenesis.Methods Human gastric cancer cell line(AGS),human gastric epithelial cell line(GES-1)and isolated parietal cells were treated with exogenous IL-1β(10 ng/ml)in the presence or absence of H.pylori(NCTC 11637).Cell proliferation and apoptosis were determined by MTT assay and flow cytometry,respectively. Expressions of cyclooxygenase-2(COX-2)mRNA and protein were examined using RT-PCR and flow cytometry,respectively.Acid secretion by parietal cells was tested using 14C-aminopyrine(14 C-AP) accumulation indirectly.H+/K+ ATPase α subunit mRNA expression was assessed using RT-PCR.Results The cell proliferation and H.pylori-related apoptosis in both GES-1 and AGS celL lines were stimulated and inhibited by IL-1β.IL-1β induced expression and upregulation of COX-2 mRNA in GES-1 and AGS cell lines,respectively.In addition,IL-1β continuously inhibited the ability of histamine-stimulated 14C-AP accumulation of isolated parietal cells accompanied by down-regulation of H+/K+ ATPase mRNA expression.Conclusions It suggests that IL-1β play an important role in H.pylori-related gastric carcinogenesis through two pathways:①to interfere gastric epithelial cell growth by up-regulating COX-2 expression,②to inhibit acid secretion from parietal cell by down-regulating H+/K+ ATPase expression.

Objective To explore the most important risk factors in metabolic syndrome(MS) components.Methods Ninety-four individuals were classified into MS and non-MS group according to the diagnostic criteria for MS proposed by Chinese Diabetes Society(CDS) revised in 2006 or International Diabetes Federal(IDF) in 2005.Age,waist circumference(WC),body mass index(BMI),fasting plasma glucose,lipid profile,blood pressure and blood cell counts in two groups were compared.Partial least squares discriminant analysis(PLSDA) was carried out to determine the most important components of MS.Results Patients with MS diagnosed by CDS or IDF criteria have significantly older age,higher BMI,WC,blood pressure,fasting plasma glucose,triglycerides,insulin levels,insulin resistance index,high sensitivity CRP and fibrinogen levels compared with non-MS group.PLSDA analysis shows WC,BMI,blood pressure and aging are most important components of MS.Conclusion Obesity,hypertension and aging are three most important components of MS with obesity is the utmost among them.

Objective To evaluate the clinical efficacy and safety of a fractional bipolar radiofrequency device for the treatment of wrinkles of the face and neck.Methods This study enrolled 39 volunteers (including 37 females and 2 males aged 35-60 years) with Fitzpatrick skin type Ⅳ-Ⅴ and Fitzpatrick wrinkle scale score of 4-6.All the subjects received three sessions of treatment with a fractional bipolar radiofrequency device at intervals of 4-6 weeks.Follow-up visits were scheduled at one month after each treatment session for evaluation of efficacy (using standardized photography),subjective satisfaction and adverse effects.Results After three sessions of treatment,all the subjects experienced a significant decrease in Fitzpatrick wrinkle scale compared with baseline values,and wrinkle improvement score increased with the increase in treatment sessions.The Fitzpatrick wrinkle scale score for forehead wrinkles,glabella wrinkles,fishtail lines and neck wrinkles in these subjects after three sessions of treatment significandy differed from that before treatment (all P ＜ 0.01).Significant differences were also observed in the wrinkle improvement score for forehead wrinkles between these subjects after two sessions and one session of treatment (P ＜ 0.01),and observed in that for glabella wrinkles,fishtail lines and neck wrinkles between these subjects after three sessions and one session of treatment (P ＜ 0.05 or 0.01).Side effects were mild with no significant downtime.Conclusion Fractional bipolar radiofrequency may be a safe and effective option for the treatment of wrinkles of the face and neck in individuals with Fitzpatrick skin type Ⅳ-Ⅴ.

Objective To evaluate the diagnostic value of the early rheumatoid arthritis (RA) classification criteria for early RA and to assess the clinical efficacy of knee arthroscopic synovectomy for RA.Methods A total of 62 patients who had arthritic complaints with disease duration less than one year were treated with knee arthroscopic synovectomy.Patients were diagnosed as RA confirmed by changes of synoviomorphous under arthroscopy,synovial biopsy,immunological biochemical laboratory and MRI,and compared with the preoperative ERA diagnosis.The efficacy was assessed at the third months and more than 12 months after operation,including Health Assessment Questionnaire (HAQ),Lysholm score,laboratory parameters of erythrocyte sedi-mentation rate (ESR) and C-reactive protein (CRP).Results The sensitivity and specificity in the early RA classification criteria for RA diagnosis were 81.58％ and 91.67％.38 patients diagnosed as RA and the remaining 24 patients were significantly improved of HAQ,Lysholm score,ESR,CRP compared with preoperation,showed statistical difference (P ＜ 0.01).There were still statistical differences between the follow-up results of the group of patients with RA in different period after operation (P ＜ 0.01).Conclusion The early RA classification criteria is worthy of clinical application,because it has the advantages of simple,practical,and is beneficial to early diagnosis of RA.The early RA patients should be treated with knee arthroscopic synovectomy as far as possible.It can improve not only the knee function,but also the general symptoms,and it can interrupt the RA pathological process,effective maintain curative effect after operation.

Objective To explore the effects of H.pylori and crude extracted proteins secreted by H.pylori(broth culture filtrate protein,BCF-P)on acid secretion from isolated rabbit parietal cells.Methods Parietal cells from rabbit gastric mucosa were isolated and enriched with digestion and elutriation.H.pylori(NCTC 11637,CagA+ VacA+)were grown in liquid broth culture and BCF-P was precipitated with ammonium sulfate.The vacuolation activity of BCF-P was evaluated with neutral red dye uptake test in HeLa cell.Isolated parietal cells were incubated with H.pylori(bacteria/cell=100∶1)for 2 h and 16 h,or BCF-P(100μg/ml)for 1 h and 12 h.Acid secretion from parietal cells was studied using 14C-aminopyrine(14C-AP)accumulation indirectly and H+-K+ ATPase α subunit mRNA expression was assessed using RT-PCR.Results (1)BCF-P containing vacuolating cytotoxin(VacA)with vacuolation activity on HeLa cells had positive result on neutral red uptake test.(2)The basal expression of H+-K+ ATPase α subunit mRNA could be detected in isolated parietal cells and 14C-AP accumulation was significantly increased in response to the stimulation of histamine with different concentrations for 30 min(P＜0.05).These results indicated that the isolated parietal cells retain relative intact acid secretion function.(3)The histamine(1.0×104 mol/L)stimulated acid secretion was inhibited sustainedly in response to H.pylori by 81% at 2 h and by 94% at 16 h(P＜0.05).However,H+-K+ ATPase α subunit mRNA expression was up-regulated in tlle acute period(2 h)and was down-regulated in the chronic period (16 h)by H.pylori(P＜0.05).(4)BCF-P significantly inhibited the histamine-stimulated acid secretion by 24% at 1 h and by 58% at 12 h(P＜0.05),and this inhibition was accompanied by the down-regulated expression of H+-K+ATPase α subunit mRNA.Conclusions Intact H.pylori and VacA secreted by H.pylori could directly inhibit histamine-stimulated acid secretion from parietal cells and this inhibition may be mediated by the down-regulated H+-K+ ATPase expression.

Objective Using 7.0 T diffusion tensor imaging(DTI) to study myocardial fibers character in isolated rats heart in aspect of water molecular diffusion, myocardial mechanics and microstructure. Methods Fixed male rats heart (n=10) underwent DTI and the myocardial structures were quantitatively measured by Diffusion Toolkit and Matlab. The characteristic of myocardial fibers arrangement was observed and FA values and ADC values of myocardial fibers, myocardial fibers density and length, mean helix angle of left ventricular were calculated as well. Mean helix angle of anterior wall, ventricular septum, lateral wall and posterior wall of epicardium and endocardium were compared by using one?way ANOVA. Results The SD rats' myocardial fibers appeared in compact and inerratic distribution from epicardium to endocardium. Compared with HE staining, regular direction and arrangement in fibers were showed in myocardial fibers tracer map and tensor map in papillary muscle plane. Quantitative analysis showed that ADC value of SD rats' myocardial fibers was (9.6 ± 3.6) × 10-4 mm2/s, FA value was 0.80 ± 0.04, myocardial fibers density was (981±24) tracks/mm3 and myocardial fibers length was (6.18±1.71)mm. Mean helix angle of left ventricular epicardium to endocardium ranged from-81.37° to 0° and then gradually change to 82.83° . There were no significant differences in mean helix angle of anterior wall, ventricular septum, lateral wall and posterior wall of epicardium and endocardium, respectively (F=2.25, 0.40, P>0.05). Conclusions This study shows that DTI is an effective method to quantitatively measure the characteristics of myocardial fibers. This study provides useful information for further study of myocardial fibers in heart disease models.