Background and purpose:The antitumor drugs produce a marked effect through the induction of apoptosis. The resistance to chemotherapy has been found to be associated with abnormal expression of genes related to apoptosis. We designed this experiment to investigate the role of survivin gene in the resistance to chemotherapy. Methods:After being treated with Hydroxycamptothecine (OPT,21.96mmol/L), the apoptosis in gastric cancer cell line BGC-823 cells were evaluated by either flow cytometry(FCM) or the terminal deoxynucleotidy transfer mediated dUTP-biotin nick end labeling(TUNEL). The expression of Survivin was detected by reverse transcription-Polymerase chain reaction(RT-PCR) and immunohistochemistry.Results:Compared to control group, the OPT can induced apoptosis in BGC-823[(12.68?0.17)% vs (3.35?0.13)% by FCM,(16.00?1.23)% vs (2.78? 0.84)% by TUNEL[, OPT could upregulate survivin expression in BGC-823 cells (1.489?0.041)% vs (0.756?0.037)% in terms of level of mRNA,(0.928?0.046) vs (0.303?0.032) in terms of protein expression).Conclusions:The survivin gene may be associated to the resistance to chemotherapy through the induction of gene expression.

Objective To explore the clinical and serological features of patients with pneumomdiastinum (PNM) and dermatomyositis associated interstitial lung disease (DM-ILD).Methods A total of 145 polymyositis/dermatomyositis (PM/DM) patients hospitalized in our department from March,2010 to December,2012 were recruited.The sera,clinical and laboratory data were collected.Anti-aminoacyl-tRNA synthetase (anti-ARS) and anti-melanoma differentiation-associated gene 5 (MDA5) antibodies were detected by RNA-immunoprecipitation (RNA-IP) and ELISA,respectively.Anti-NXP2,anti-TIF1γ,anti-SRP,anti-SAE and antiMi2 antibodies were detected by immunoprecipitation-Western blotting.Variables were compared between DM patients with and without PNM,as well as between DM-ILD patients with and without PNM.Chi square test,Fisher's exact test,t test,Mann-Whitney U test and a multivariate logistic regression model were used for statistical analysis.Results A total of 11 DM patients (10 patients positive for anti-MDA5 and 1 patient positive for anti-Mi2) developed spontaneous PNM.No PM patient developed PNM.No differences of sex,age at the onset of DM,serum ferritin levels and C reactive protein (CRP) levels was observed between DM patients with and without PNM.Compared with DM patients without PNM,DM patients with PNM had significantly higher frequencies of rapidly progressive ILD (RP-ILD) (63.6％ vs 24.4％,x2=7.25,P=0.01),anti-MDA5 antibodies (90.9％ vs 52.4％,x2=5.86,P=0.02),clinically amyopathic DM (CADM) (63.6％ vs 22.0％,x2=8.57,P=0.007) and cutaneous ulcers (36.4％ vs 11％,x2=5.20,P=0.04),but significantly lower creatine kinase (CK) levels [58.5 (30.5,394.3) U/L vs 284 (73.0,917.0) U/L,t=207.5,P=0.04].The logistic multivariate analysis indicated that cutaneous ulcer was the only independent risk factor for the occurrence of PNM in DM [OR=5.98,95％ confidence interval (CI) (1.12,31.98),P=0.037].In the comparisons between DM-ILD patients with and without PNM,a higher frequency of CADM was observed in the PNM group (63.6％ vs 27.9％,x2=5.37,P=0.03),but no significant difference of the frequencies of RP-ILD,anti-MDA5 antibodies,cutaneous ulcers and CK levels was found in these two groups.All patients with PNM were treated with corticosteroids and immunosuppressants.During the follow-up period,6 patients died of respiratory failure.Conclusion Spontaneous PNM is a refractory complication with poor prognosis,and tends to occur in DM patients with RP-ILD,anti-MDA5 antibody,CADM diagnosis and low CK level,especially in patients with cutaneous ulcers.

This study was aimed to establish the ultra high performance liquid chromatography (UHPLC) fingerprints of Psoralea corylifolia L. The separation was achieved on a Shim-pack XR-ODS Ⅲ column (50 mm í 2.0 mm, 1.6μm) by gradient elution with acetonitrile-0.2% glacial acetic acid solution as the mobile phase. The flow rate was 0.1 mL·min-1 and the measurement wavelength was 246 nm. The temperature of the column was 45oC. The results showed that the UHPLC fingerprint of P. corylifolia L. was established and 10 characteristic common peaks were found, among which 6 peaks were recognized by comparing with reference substances. It was concluded that the method was rapid, reliable and reproducible. The established fingerprint can provide references for the study of sub-stance basis and quality control of P. c orylifolia L.

Radical cystectomy is widely used as a gold standard in the treatment of invasive bladder cancer. Urinary diversion is required after radical cystectomy. In all kinds of urinary diversion procedures, orthotopic neobladder is preferred by its advantages such as spontaneous voiding, avoidance of external ostomy and improvement of body image. After surgery, urinary incontinence is a common complication. In this review, we systematically outline the management of urinary incontinence in men after radical cystectomy and orthotopic neobladder. And we mainly describe the influential factors of urinary incontinence, such as preoperative diabetes, intraoperative intestinal selection and nerve preservation, and postoperative urinary tract infection. The related post-operative management of urinary incontinence that has been conducted previously is also described in detail. The aim of this study is to provide guidance for the systematic treatment of urinary incontinence in clinical practice, and to look forward to the possible future development directions of urinary incontinence treatment, such as bladder neck reconstruction and stem cell therapy.

Objective: To investigate the association between lifestyle risk factors and comorbidity of chronic diseases among male elderly populations in Oroqen Autonomous Banner, Inner Mongolia Autonomous Region, so as to provide insights into improvements of lifestyles and prevention of comorbidity of chronic diseases among male elderly populations. Methods: Male residents at ages of 65 years and older that participated in community healthy examinations were sampled from 16 villages (communities) in Oroqen Autonomous Banner using a multi-stage cluster random sampling method from July to December, 2020. Participants' demographic data, lifestyle risk factors and disease history were collected using questionnaire surveys, and healthy examinations data were collected through the grassroots healthcare service information system for community health service centers, including waist circumference, blood pressure, fasting blood glucose and blood lipid. The correlation between lifestyle risk factors and comorbidity of chronic diseases were examined among males at ages of 65 years and older using a multivariable ordered logistic regression model. Results: Totally 761 male elderly populations were included, with a mean age of (73.61±6.74) years. There were 216 participants with central obesity (28.38%), 179 with smoking (23.52%), 194 with alcohol consumption (25.49%), 412 with a low frequency of physical activities (54.14%), 347 with one type of lifestyle risk factor (45.60%) and 268 with two and more types of lifestyle risk factors (35.22%), 404 with hypertension, 170 with diabetes and 321 with dyslipidemia. There were 347 participants with one type of chronic disease (45.60%), 199 with two types of chronic diseases (26.15%) and 50 with three types of chronic diseases (6.57%), and the prevalence of comorbidity of chronic diseases was 32.72% among the participants. Multivariable ordered logistic regression analysis showed an increased risk of developing comorbidity of chronic diseases among participants with central obesity (OR=2.442, 95%CI: 1.804-3.307), and a reduced risk of comorbidity of chronic diseases among participants with less than two types of lifestyle risk factors (one type, OR=0.607, 95%CI: 0.451-0.820; none, OR=0.675, 95%CI: 0.460-0.990). Conclusions Central obesity and number of lifestyle risk factors are factors affecting comorbidity of chronic diseases among the male elderly populations at ages of 65 years and older in Oroqen Autonomous Banner.

Objective To investigate the expressions of FAT10 and p53 mutant in gastric cancer tissues and their relations. Methods Immunohistochemistry and RT-PCR were used to detect the expressions of FAT10 and p53 in gastric cancer tissues (n=62), para-cancerous tissues (2-5 cm apart from cancer, n=62), and normal gastric tissues (7>5 cm apart from cancer, n=62). The association of FAT10 with p53 and clinical outcomes were analyzed by Spearman and Pearson correlation. Results The immunohistochemistry examination showed that expressions of FAT10 [51.61%(32/62)] and p53 [45.16% (28/62)] were significantly higher in cancerous tissues than in para-cancerous tissues [12.90%(8/62) and 14.51% (9/62), χ2=21.26 and 20.69, P<0.01] and normal tissues [6.45% (4/62) and 9.68% (6/62), χ2=13.91 and 19.61, P<0.01]. Overexpressions of FAT10 protein and mRNA in cancerous tissues were closely related to lymph node metastasis and TNM staging (both P value<0.05). There was a positive correlation between FAT10 and p53 in protein and mRNA expressions (protein r=0. 865, P<0.05; mRNA r=0.761, P< 0.01). Those with positive expression of FAT10 had lower survival rate compared to those with negative expression (P<0.05). Conclusions The positive relation between over-expression of FAT10 and p53 implicates that both are involved in the gastric carcinogenesis, and FAT10 is a novel gastric cancer marker with prognostic significance.

Objective To investigate the effect of unfractionated heparin (UFH) on the expression of heme oxygenase-1 (HO-1) in intestinal mucosa of mice with sepsis.Methods Thirty-six male C57BL/6J mice were randomly divided into sham group,cecal ligation and puncture (CLP) group and UHF group,n =12 in each group.Model of intestinal injury in sepsis was induced by CLP.In sham group,the mice were exposed without ligation of cecum.In UFH group,the mice were treated intravenously with 8 U of UFH via the tail vein half an hour before the operation and 12 hours after the surgery respectively.Six mice in each group were randomly chosen at 4 hours and 24 hours after operation to collect inferior vena venous blood samples and terminalileum tissues.The serum levels of interleukins (IL-1 β,IL-6),and tumor necrosis factor-α (TNF-α) were determined by enzyme linked immunosorbent assay (ELISA).The serum level of D-lactate was determined by colorimetry.Pathological changes of ileum tissue and Chiu score were observed after hematoxylin eosin (HE) staining.The HO-1 expression was detected immunohistochemically.Results In sham group,no significant changes in the serum levels of IL-1 β,IL-6,TNF-α and D-lactate were observed.Twenty-four hours after the operation,the structure of intestinal mucosa was basically normal without obvious pathology change and no HO-1 positive cells were found.The serum levels of IL-1 β,IL-6,TNF-α,and D-lactate in CLP group were gradually increased,and they were significantly increased as compared with sham group [IL-1 β (ng/L):40.87±2.88 vs.22.60±2.05 at 4 hours,113.73±3.96 vs.22.07±2.74 at 24 hours;IL-6 (ng/L):63.89±3.26 vs.44.89±3.38 at 4 hours,176.56±5.45 vs.45.76±4.02 at 24 hours;TNF-α (ng/L):194.62± 14.13 vs.152.05±6.22 at 4 hours,599.62± 10.20 vs.155.90± 14.18 at 24 hours;D-lactate (mmol/L):0.24± 0.02 vs.0.19 ± 0.01 at 4 hours,0.33 ± 0.04 vs.0.20 ± 0.02 at 24 hours,all P ＜ 0.05].Twenty-four hours after the operation,edema and inflammation in ileal mucosa,intestinal villi structural damage were observed,the Chiu score was significantly higher than those in the sham group [4.5 (3.0-5.0) vs.0 (0-1.0),P ＜ 0.05],and a small amount of HO-1 positive cells were localized in the intestinal mucosa.Compared with CLP group,the serum levels of IL-1 β,IL-6,TNF-α,and D-lactate of UFH group were significantly decreased [IL-1 β (ng/L):31.53 ± 2.90 vs.40.87 ± 2.88 at 4 hours,61.13 ± 2.80 vs.113.73 ± 3.96 at 24 hours;IL-6 (ng/L):51.16 ± 5.68 vs.63.89 ± 3.26 at 4 hours,81.16 ± 4.54 vs.176.56 ± 5.45 at 24 hours;TNF-α (ng/L):171.76± 5.60 vs.194.62± 14.13 at 4 hours,328.48 ± 10.79 vs.599.62± 10.20 at 24 hours;D-lactate (mmol/L):0.21 ±0.01 vs.0.24±0.02 at 4 hours,0.24±0.02 vs.0.33±0.04 at 24 hours,all P ＜ 0.05].Twenty-four hours after the operation,intestinal injury was ameliorated,the Chiu score was significantly lower [1.5 (1.0-5.0) vs.4.5 (3.0-5.0),P ＜ 0.05],and HO-1 positive cells in the intestinal mucosa was remarkably increased.Conclusion UFH can enhance the expression of HO-1 in intestinal mucosa,reduce the release of inflammatory factors,ameliorate the intestinal inflammatory response,and thus play a protective role in intestinal tissue in mice with sepsis.

Objective To investigate the clinical features of polymyositis/dermatomyositis (PM/DM) with anti-nuclear matrix protein (anti-2NXP2) antibodies in Han-Chinese.Methods ImmunoprecipitationWestern Blotting (IP-WB) method was used for screening anti-NXP2 antibodies in 141 adult Han-Chinese patients with PM/DM.The clinical and laboratory data were collected,analyzed and compared with the antiNXP2-positive patients reported in the literature.Statistical analyses were performed using chi-square test and Fisher's exact test.Results Seven (5％) patients,including 6 with DM and 1 with PM,were identified as anti-NXP2 positive.Consistent with the 114 anti-NXP2-positive patients reported in the literature,Han patients with anti-NXP2 had higher frequencies of weakness,heliotrope rash and Gottron's sign.Compared with anti-NXP2-negative patients,anti-NXP2-positive patients presented significantly higher frequencies of dysphagia [43％(3/7) vs 9％(12/134),x2=8.04,P=0.027] and edema [43％(3/7) vs 2％(3/134),x2=26.94,P=0.001 4],while an absence of PM/DM related cancer was observed in Han patients with anti-NXP2.Conclusion Adult Han-Chinese patients with anti-NXP2 are DM predominant,and are characterized by a high frequencies of edema and dysphagia.

BACKGROUND:The preemptive analgesia is stil a controversial issue. Existing studies have not paid much attention to effects of preoperative factors on the hypersensitivity of peripheral and central mechanisms. Visual analog scale scores cannot subjectively and repeatedly reveal patient’s pain.
OBJECTIVE:To investigate the validity of the preventive analgesia effect of Celebrex in patients with total knee arthroplasty.
METHODS:Patients with osteoarthritis of the knee who received total knee arthroplasty were accessed by Pittsburgh sleep quality index, self-rating depression scale and self-rating anxiety scale. In al , thirty patients were enrol ed in the study. They were randomized into Celebrex group and vitamin C group, and each group had 15 patients. The patients in the Celebrex group and vitamin C group took 200 mg Celebrex and vitamin C, respectively, twice a day from day 2 to day 4. Both of their knees were evaluated by resting visual analogue scale and moving visual analogue scale in the evening of day 1 before treatment and day 3 after treatment. Meanwhile, the pain threshold and pain tolerance were accessed by a pain-threshold machine.
RESULTS AND CONCLUSION:No statistical significance of the changes of resting and moving visual analogue scale scores was found in both knees in the Celebrex group (P>0.05). The pain threshold of both knees were significantly increased (P<0.05), and the severe knee, which had less visual analogue scale scores than the minor one, turned out to increase more obviously than the minor knee (P>0.05). There were no significant changes in the pain tolerance in both knees (P>0.05). The changing values of resting or moving visual analogue scale were not significantly correlated with the pain threshold and pain tolerance (P>0.05). There were no significant changes in visual analogue scale scores, pain threshold and pain tolerance in both knees of the vitamin C group (P>0.05). Celebrex could increase the pain threshold of patients receiving total knee arthroplasty, especial y the severe knee, which indicates that the Celebrex is good for the preventive analgesia. Comparatively speaking, the pain threshold might be more sensitive than visual analogue scale in revealing the change of pain after analgesia. There is no significant correlation between visual analogue scale score and the hypersensitivity of pain.

Objective To investigate the effect of total flavones of Rhizoma Drynariae on femur distraction osteogenesis in the rabbits. Methods Thirty-two healthy rabbits were randomly divided into treatment group and control group, 16 rabbits in each group. The femoral fracture was treated with unilateral femoral distraction and was fixed with a self-made distraction instrument. After 7-day intermittent period, the fractured femur was distracted at a rate of 1 mm/d, twice a day for 10 continuous days. The treatment group was fed with total flavones of Rhizoma Drynariae from the first post-operative day to the end of the experiment. And then all of the animals were sacrificed after fixation for 28 days. The bone specimens were used for histological observation and immunohistochemical detection. Results The area of mature bone in the newborn bone tissue of the treatment group was increased, and osteoblasts number and the percentage of trabecular bone area were significantly higher than those of the control group . The bone morphogenetic protein-2 (BMP-2) and transforming growth factor-β1 (TGF-β1) were stained brown deeply, the staining degree being stronger than that of the control group. Conclusion Rhizoma Drynariae total flavones can effectively accelerate the formation and maturation of newborn bone tissue during bone distraction.