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Objective@#To investigate the effect of human glutathione peroxidase 4 (GPX4) on the proliferation and metastasis of renal clear cell carcinoma and its relationship with the expression of IGF-1R and COX-2.@*Methods@#Culture of human normal tubular cell line HK-2 and human renal clear cell carcinoma Caki-1, A498, Caki-2, 786-o in vitro. Detection of GPX4 mRNA and protein expression in different cell lines by quantitative real-time PCR (RT-PCR) and Western blot assay. Overexpression of GPX4 cell lines, including blank carrier (Vector) and overexpress GPX4 (oeGPX4) group, and interference with GPX4 renal clear cell carcinoma cell lines, including random sequence (shControl), interference GPX4#1 (shGPX4#1) and interference GPX4#2 (shGPX4#2) group by lentiviral transfection. RT-PCR technology and Western blot were used to detect the expression of GPX4, IGF-1R and COX-2 mRNA and protein. CCK-8 assay was used to detect the relative proliferation of cells at 0, 24, 48, 72 and 96 h in each group. Transwell invasion and migration assay to detect the invasion and migration ability of cells of each group.@*Results@#GPX4 is highly expressed in renal clear cell carcinoma cell lines compared to human normal tubular cell lines; The expression of GPX4, IGF-1R and COX-2 mRNA was significantly increased in oeGPX4 cells compared with Vector cells, the expression of GPX4,IGF-1R and COX-2 mRNA was significantly decreased in shGPX4#1 and shGPX4#2 compared with shControl cells; oeGPX4 cells significantly increased proliferative capacity compared to Vector cells at 72 and 96 h, the proliferation of shGPX4#1 and shGPX4#2 cells was significantly lower than that of shControl cells at 72 and 96 h; The number of invading and migrating cells of oeGPX4 cells was significantly higher than that of Vector cells, the number of invasive and migrating cells in shGPX4#1 and shGPX4#2 cells was significantly lower than that in shControl cells.@*Conclusion@#GPX4 is highly expressed in renal clear cell carcinoma cells, which is positively correlated with the expression of IGF-1R and COX-2, and can promote cell proliferation and metastasis in vitro.
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Objective To investigate the clinical, radiological and pathological characteristics, treatment and prognosis of pulmonary benign metastasizing leiomyoma (PBML). Methods The clinical and image data of 6 patients with PBML confirmed by pathology from October 2012 to December 2016 were retrospectively analyzed, and the related literature was reviewed. Results Six cases were female, age was from 32 to 55 (43.80 ± 7.17) years. Two cases were found by physical examination, 2 cases had chest distress and asthma, 1 case had chest pain, and 1 case had hemoptysis. Pulmonary abnormalities were detected between 1 month and 15 years after uterine myomectomy. Chest CT showed that multiple lung nodules or masses were observed in 5 patients, among which random distribution was in 3 cases, diffuse military nodule pattern was in 2 cases, and single mass combined with primary lung adenocarcinoma was in 1 case. Fluorine-18-fluorodeoxyglucose positron emission tomography/CT (18F- FDG PET/CT) of one patient showed no obvious uptake of the maximum standardized uptake value. All patients were confirmed histologically with CT guided lung biopsy (2 cases), thoracoscopic lung biopsy (2 cases), and thoracoscopic lobectomy with wedge resection (2 cases). Tumor cells revealed the characteristics of smooth muscle cell differentiation. Immunohistochemistry showed strong positive express of Desmin, SMA smooth muscle specific markers, estrogen receptor and progesterone receptor. Three patients were treated with oral tamoxifen anti estrogen therapy with follow-up from 5 months to 5 years. Four cases had a good prognosis, and 2 cases were lost in follow-up. Conclusions PBML is a rare disease that is prone to occur in women of childbearing age. The clinical symptoms are atypical. Imaging examination and pathology are necessary for diagnosis. Surgery combined with endocrine therapy is effective.
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We investigated the epidemiological characteristics of diarrheagenic Escherichia coli (E.coli) infection in Fujian Province,providing reference for the prevention and control of diarrhea epidemic and outbreak.Yanping and Yongan areas were selected as surveillance sites from year 2010 to 2015,where 1 950 samples were collected from the sentinel hospitals,and then samples were isolated and cultured on MacConkey agar plates.Suspected strains were identified by routine and molecular diag nosis technique methods.Results were analyzed by SPSS 17.0 software package.A total of 129 strains of diarrheagenic E.coli were isolated with a total detection rate of 6.62％.The detection rates of enteropathogenic E.coli(EPEC),enterotoxigenic E.coli(ETEC) and enteroadhesive E.coli(EAEC) were 3.33％,1.64％ and 1.64％ respectively (including 61 strains of atypical EPEC,4 strains of typical EPEC,and 32 strains of ETEC and EAEC for each),while EHEC and EIEC were not found.There was no significant difference between the detection rates of male and female.All the patients were divided into five groups according to the age,and there were no significant differences between the detection rates of EPEC,EAEC and ETEC in the 5 groups.The detection rates were the highest in August and September.There was no significant difference between the detection rates of rural area and uban area.There was also no significant difference between the composition ratio of diarrheagenic E.coli (DEC) in the two surveillance sites.In conclusion,there were three kinds of DEC in Fujian Province,and EPEC was the dominant.August and September were the months with the highest detection rates.Children age less than five and adult aged 20 59 years were the high risk groups with DEC infection.More attention should be attached on the rational treatment by antibiotic for DEC.
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Through surveying the hospital′s operation situation and management process of the simple clinic , and outpatient quantity in January to March 2016, we discussed and analyzed the problem of the simple clinic when working , then promoted service process reengineering , so as to the hospital′s simple clinic come into being scientific , reasonable , system management model .
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Objective To explore the value of Color Doppler Flow Imaging in diagnosis of superfi-cial substantial tumors.Methods Retrospective analysis of 742 cases of superficial substantial masses ( all confirmed by operation and pathology) of Patients'ultrasonography , and summarized its features of benign and malignant, and made a comparison.Results Of the 742 patients, ultrasound detection rate of 100%, including 12 cases of malignant lesions, ultrasound diagnosis of 12 malignant cases, the accuracy rate of 100%;730 cases of benign lesions, ultrasound diagnosis of 711 cases of benign, qualitative accuracy rate 97.4%.Conclusions Color Doppler Flow Imaging has an important value in the diagnosis of benign and malignant of superficial substantial tumors.
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Objective To explore the significance of quality control after clinical laboratory analysis .Methods A total of 450 pieces of unqualified testing reports were collected from the Department of Clinical Laboratory from January 2012 to June 2014 and reasons causing unqualified testing reports were analyzed .Results In all 450 pieces of unqualified testing reports ,testing results of 169 pieces were inconsistent with results of clinical diagnosis ,accounted for 37 .6% ;149 pieces with missing or indirect inspection i‐tems ,accounted for 33 .1% ;62 pieces did not indicate staff or department sending specimens ,accounted for 13 .8% ;results of 36 pieces reached the critical value but without re‐inspection or did not indicate the re‐inspection ,accounted for 8 .0% ;18 pieces did not clarify specimens with lipid turbidity or jaundice and so on ,accounted for 4 .0% ;16 pieces marked with wrong sample types ,accoun‐ted for 3 .6% .Conclusion It is necessary to conduct quality control after clinical laboratory analysis before delivering report ,stand‐ardize operating procedures ,check every report seriously ,make clear responsibility and improve awareness of responsibility ,in order to provide a qualified testing report for clinical practice .
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Objective To explore the effect of lactulose oral solution in the treatment of patients with chronic functional constipation and its influence on the level of MTL and NO.Methods 54 cases of patients were selected with primary glaucoma who were treated in our hospital from June 2013 to October 2014 as research objective,and they were randomly divided into research group(29 cases)and control group(25 cases)according to the number table method.All of the patients were given treatment as diet adjusting,defecating exercise and so on.The research group got extra treatment as taking lactulose oral solution 10 g,2 to 3 times per day,for 6 weeks.Results MTL in the research group before treatment was 203.71ng/mL,and it was 371.03ng/mL after treatment for 6 weeks,there was statistically significance on difference of MTL levels between before treatment and after treatment(P <0.05).NO in the research group before treatment was 120.52ng/mL,andit was 69.01ng/mL after treatment for 6 weeks,there was statistically significance on difference of NO levels between before treatment and after treatment(P <0.05).MTL in the control group before treatment was 206.21ng/mL,which was 279ng/mL after treatment for 6 weeks,there was statistically significance on difference of MTL levels between before treatment and after treatment(P <0.05).NO in the control group before treatment was 123.92ng/mL,which was 98.75ng/mL after treatment for 6 weeks,there was statistically significance on difference of NO levels between before treatment and after treatment(P <0.05 ).MTL levels in the research group after treatment was higher than that in the control group when NO levels was lower than that in the control group,the difference was statistically significant(P <0.05).Conclusion Lactulose can improve the secretion of gastrointestinal hormones in plasma such as promoting the secretion of MTL and reducing the synthesis of NO.
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This paper reviewed the progress in research on HER2 and gastric cancer,introducing the structure, signaling pathways,detection method and detection rate of HER2,the therapeutic effect of trastuzumab,a humanized anti-HER2 monoclonal antibody on gastric cancer,and the correlation between HER2 and prognosis of gastric cancer. Studies showed that HER2-positive was a factor with poor prognosis,and trastuzumab combined with chemotherapy was a new treatment option for patients with HER2-positive advanced gastric and gastroesophageal junction cancer or with liver metastases,which could significantly improve the prognosis.
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The emergence of atypical El Tor strains from V .cholerae in South Asia and Africa has been attributed to several outbreaks in recent decades ,however ,backgrounds of such strains in China remain exclusive .In this study ,PCR am-plification of both El Tor and classical alleles for ctxB ,tcpA ,rstR and hlyA genes was attempted in sixty-nine El Tor isolates from Fujian between 1962 to 2005 ,in addition ,some amplicons were sequence-analyzed .Thus ,the time point of atypical EVC strains in Fujian was determined ,genetic diversities of such strains were investigated .It was revealed that ctxB-Cl ,tcpA-Cl and hlyA genes were detected in O1 serogroup EVC isolates from Fujian since 1962 .Although rstR-Cl gene was solely detected in isolates between 1994 to 2000 .It was indicated by sequence analysis that atypical EVC strains from Fujian possessed a novel T→G mutation at residual 204 of the ctxB gene .Remarkably ,two novel ctxB genotypes (ctxB-10 and ctxB-11) were identified in one strain .The residual 115-C of ctxB in ctxB-11 showed characteristics of ctxB-Cl ,however ,its residual 203-T demonstra-ted characteristics of ctxB-El .This observation implied that it was common in O1 serogroup EVC strains from Fujian hybrid-ized with classical alleles since 1962 ,which would be the earliest time-point for the emergence of atypical El Tor strains hitherto in literature .Emergence of atypical El Tor strains harboring rstR-Cl in Fujian occurred since 1994 .Meanwhile ,novel mutation sites and ctxB genotypes were observed in Fujian isolates ,including diverse combination of ctxB genotypes in one strain and combination of biotype-specific sites in ctxB sequences .In summary ,molecular characterization of O 1 serogroup EVC strains from Fujian was unique and geography-associated .
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Objective To observe the treatment effect of radio frequency target combined with collagenase in treatment of cervical intervertebral disc herniation. Methods From March 2011 to September 2011, 40 patients with cervical intervertebral disc herniation were divided into 2 groups: Group A and Group B. Patients in Group A were given radio frequency target radiofrequency for treatment of the cervical intervertebral disc herniation and patients in Group B of 20 were given radio frequency target combined with collagenase for treatment of cervical intervertebral disc herniation. Results 40 patients were followed up for 6 months. At the 1st week and 6 months after surgery, the VAS score difference between before and after surgery in patients were compared between two groups by t test. There was no statistically significant difference at the 1st week after surgery between two groups (P>0.05), while 6 months after surgery, there was statistically significant difference between two groups (P<0.05) .Conclusion Radio frequency target combined with collagenase for treatment of cervical intervertebral disc herniation can alleviate the pain symptoms of patients,and the short-term and long-term curative effect is very good. The long-term curative effect has statistically significant difference with pure target radiofrequency ablation treatment. Radio frequency target combined with collagenase for treatment of cervical intervertebral disc herniation has good safety, few side effects, low risks and good short-term and long-term curative effect, so it deserves to be generalized.
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Objective To observe the treatment effect of joint manipulation under brachial plexus anesthesia combined with comprehensive physical therapy in treatment of periarthritis of shoulder. Mehods From 2010.3 to 2010.9, 60 patients with periarthritis of shoulder in the Department of Pain, The First People's Hospital of Jingzhou,were divided into 3 groups:group A,B and C.Twenty patients in Group A were given Joint manipulation under brachial plexus anesthesia for treatment of the periarthritis of shoulder. Twenty patients in Group B were given comprehensive physical therapy fro treatment of periarthritis of shoulder. Twenty patients in Group C were given Joint manipulation under brachial plexus anesthesia combined with comprehensive physical therapy for treatment of periarthritis of shoulder.Results All 60 patients were followed up for 1 months. At the 1st month after surgery, vas score was evaluated for patients. Postoperative and preoperative vas score difference was compared between 3 groups by t test. There was statistically significant difference in the postoperative and preoperative vas score between Group C and Group A,and between Group B and Group A (P<0.05) . Conclusion The treatment effect of Joint manipulation under brachial plexus anesthesia combined with physical therapy in treatment of periarthritis of shoulder is good, but has no obvious difference compared with comprehensive physical therapy.
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Objective To screen the microsatellites with low occurrence rate of stutter band and establish the effective bovine STR typing system.Methods The tetranucleotide STR loci in bovine genome were searched with Tandem Repeat Finder software.Primers were designed and used to amplify these candidate loci and the PCR products were separated with electrophoresis.DNA samples from 100 head of unrelated cattle were typed.Results Among these candidate loci,6 bovine tetranucleotide STR loci showed high polymorphism,and their CDP and CPE value were 0.99995 and 0.859591 respectively.Conclusion The 6 bovine tetranucleotide STR loci can be used for bovine identification and parentage testing.
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Objective:To investigate the effect of RNA-mediated interference EGFR (epidermal growth factor receptor) expression on the apoptosis of muitidrug-resisitant ovarian cancer cell line SKOV3/DDP. Methods: Small hairpin RNA (shRNA) targeting EGFR was synthesized and recombinant plasmid containing pEGFR-shRNA was constructed, pEGFR-shRNA was tansfected into SKOV3/DDP cells by liposome system, untransfected cells and SKOV3/DDP cells tansfected with nonspecific-shRNA (Ctrl-shRNA) were used as control. Expression of EGFR mRNA and protein in SKOV3/DDP cells was examined by RT-PCR and immunocytochemistry after transfection, respectively. The apopototic rates and cell cy-cles of SKOV3/DDP cells were detected by flow cytometry. Results: Compared with Ctrl-shRNA-transfected cells, the ex-pression of EGFR mRNA and protein in pEGFR-shRNA-transfected SKOV3/DDP cells was significantly inhibited. Flow cytometry results showed that cell cycle distribution in pEGFR-shRNA-transfected SKOV3/DDP cells was dramatically changed, and the apoptosis rate was significantly increased after further treatment with cisplatin for 24 h. Conclusion: EGFR-targeted interference RNA can inhibit the expression of EGFR in SKOV3/DDP cells, thereby regulating the cell cy-cle and increasing apoptosis of multidrug-resistant SKOV3/DDP cells.
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Objective To investigate the effect of psychological intervention and distraction therapy on pain of children undergoing venepuneture. Methods 200 children who underwent venepuncture were divided into group A(psychological intervention,100 cases)and group B(audiovisual distraction,100 cases).Children in group A were treated with psychological intervention such as praising, inspiring and hint, etc. Children in group B were provided with their favorite DVDs and made them to watch them during the puncture procedure. The compliance, success rate of venepuncture and grade of VAS(visual analogue scale)were scaled and analyzed. Results The compliance and Success rate of venepuncture in group A were not statistically different from those in group B(P＞0.05).The compliance was positively correlated with Success rate of venepuncture in both groups(r=0.34,P＜0.01).The scale of VAS showed no difference between group A and group B(t=0.52,P＞0.05). Conclusion Psychological intervention and audiovisual distraction could alleviate pain of children undergoing venepuncture.
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Clinical data of 80 patients with renal failure due to under detected causes(from January 1998 to June 2007)were retrospectively analyzed.Of 66 patients with acute renal failure(ARF),rhabdomyolysis was found in 45,tumor in 15,anti-neutrophil cytoplasmic antibody(ANCA)related vasculitis in 2,infective endocarditis in 2,and hemolytic uremic syndrome in 2.Of 14 patients with chronic renal failure(CRF),primary hypothyroidism was seen in 3,multiple myeloma in 4,amyloidosis in 2,analgesic nephropathy in 3,and renal tuberculosis in 2.
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Objective To observe the influence of specific short hairpin siRNA targeting EGFR gene on apoptosis of human ovarian cancer Skov-3 cells in vitro. Methods A plasmid of a short hairpin siRNA targeting EGFR was constructed, and it was transfeeted into Skov-3 cell line by lipofectamine 2000. Human ovarian carcinoma cells of the line Skov-3 were cultured and divided into 3 groups: control group; non-specific group, transfected with non-specific plasmid vector; and specific group, transfected with specific small hairpin RNA expression vector. The expression of EGFR mRNA and protein were examined by RT-PCR and immunocytochemistry, Flow cytometry (FCM) was adopted to analyze quantitatively apoptotic cells in each group. Results After transfection of pshRNA-EGFR, mRNA and protein levels of EGFR gene in Skov-3 cells were obviously reduced. Flow cytometry analysis revealed that apoptosis could be induced in Skov-3 cells line transfected with pshRNA-EGFR in a time-dependent manner, no obvious apoptosis were detected in control group and non-specific group. Conclusion The plasmid expressive vector target at EGFR in our study is capable of suppressing EGFR expression of human ovarian cancer Skov-3 cells and inducing apoptosis, which provide a new way for the gene therapy of human ovarian cancer.
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Objective To investigate the mechanism that cause allelic dropout of amelogenin gene on X chromosome(Amel-X)when using routine Sullivan106/112 bp primer set in sex identification and discuss its influence on the forensic sex identification and the clinical diagnosis.Methods Amel-X dropout was validated with Sullivan212/218 bp and Haas-Rochholz80/83 bp primer sets.Amplification of amelogenin gene was used to analyze dropout of the Amex-X followed by sequencin.Results Sullivan212/218 bp and Hgas-Rochholz80/83 bp primer sets could be used to identify gender correctly.Three types of point mntation were observed in the forward primer binding region of the Sullivan106/112 bp primer set by sequencing in the lost Amel-X,including single point mutation at 2nd and 13th sites,respectively,and heterozygous multiple point mutations at 2nd and 13th sites.Conclusions Point mutation in the primer binding region may result in a failure to amplify amelogenin allele and thus lead to a null allele.This finding should be mid attention to because it may interfere with the sex identification.
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To explore the effects of inactivated rabbit serum containing compound realgar and natural indigo tablet (CRNIT) on cell line NB(4).
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<p><b>OBJECTIVE</b>To evaluate the semen quality of the donors.</p><p><b>METHODS</b>The semen parameters of the primary samples of 512 donors were examined following the World Health Organization (WHO) guide and computer-aided sperm analysis (CASA, product by Harmilton Thorne) system.</p><p><b>RESULTS</b>Of the 246 (246/512, 48%) donors with potential fertility, only 146 (146/512, 28.5%) came up to the semen standard set by the Chinese Ministry of Health, while 266 (266/512, 52%) were below the WHO reference values of semen parameters.</p><p><b>CONCLUSION</b>Repeat semen analyses may increase the success rate in screening semen donors. The semen quality of the donors suggests that it is necessary to pay more attention to male reproductive health.</p>