ABSTRACT
Non-coding RNAs (ncRNAs) are a class of functional RNAs that play critical roles in different diseases. NcRNAs include microRNAs, long ncRNAs, and circular RNAs. They are highly expressed in the brain and are involved in the regulation of physiological and pathophysiological processes of central nervous system (CNS) diseases. Mounting evidence indicates that ncRNAs play key roles in CNS diseases. Further elucidating the mechanisms of ncRNA underlying the process of regulating glial function that may lead to the identification of novel therapeutic targets for CNS diseases.
Subject(s)
Humans , RNA, Untranslated/genetics , MicroRNAs/genetics , RNA, Long Noncoding/genetics , RNA, Circular , Central Nervous System Diseases/geneticsABSTRACT
Objective:To investigate the application value of Clavien-Dindo classification in evaluation of postoperative short-term complications of Da Vinci robotic-assisted or laparoscopic-assisted total gastrectomy with D 2 lymphadenectomy. Methods:The retrospective cohort study was conducted. The clinicopathological data of 262 patients with gastric cancer who were admitted to the 940th Hospital of Joint Logistic Support Force of Chinese People′s Liberation Army from January 2016 to January 2019 were collected. There were 214 males and 48 females, aged (58±11) years, with a range from 17 to 81 years. Of 262 patients, 120 cases undergoing Da Vinci robotic-assisted total gastrectomy + D 2 lymphadenectomy + Roux-en-Y anastomosis were divided into robotic group, and 142 cases undergoing laparoscopic-assisted total gastrectomy + D 2 lymphadenectomy + Roux-en-Y anastomosis were divided into laparoscopic group. Observation indicators: (1) intraoperative and postoperative situations; (2) postoperative pathological examination; (3)complications; (4) stratified analysis; (5) follow-up. Follow-up using outpatient examination and telephone interview was performed to detect complications, tumor recurrence and survival of patients within postoperative 2 months. The follow-up was up to May 2019. Measurement data with normal distribution were represented as Mean± SD, and comparison between groups was analyzed using the t test. Measurement data with skewed distribution were represented as M (range), and comparison between groups was analyzed using the Mann-Whitney U test. Count data were described as absolute numbers or percentages, and comparison between groups was analyzed using the chi-square test or Fisher exact probability. Comparison of ranked data between groups was analyzed using the rank sum test. Results:(1) Intraoperative and postoperative situations: cases undergoing conversion to open surgery, the operation time, volume of intraoperative blood loss, the number of lymph node dissected, time to first flatus, time to initial fluid diet intake, duration of postoperative hospital stay of the robotic group were 1, (243±42)minutes, 100 mL(range, 100-150 mL), 38±15, (2.8±1.0)days, 3 days(range, 3-4 days), 11 days(range, 9-13 days), respectively. The above indicators of the laparoscopic group were 2, (244±38)minutes, 100 mL(range, 100-150 mL), 34±14, (3.2±1.0)days, 4 days(range, 3-5 days), 10 days(range, 9-13 days), respectively. There were significant differences in the number of lymph node dissected, time to first flatus, time to initial fluid diet intake between the two groups ( t=2.068, -3.030, Z=-3.370, P<0.05), and there was no significant difference in cases undergoing conversion to open surgery, the operation time, volume of intraoperative blood loss, duration of postoperative hospital stay between the two groups ( χ2=0.000, t=-0.158, Z=-1.824, -0.088, P>0.05). (2) Postoperative pathological examination: cases with well differentiated tumor, moderately differentiated tumor, poorly differentiated tumor, signet ring cell carcinoma or other types of tumor, cases in stage T1b, T2, T3 or T4a (pT staging), cases in stage N0, N1, N2, N3a or N3b (pN staging), cases in stage ⅠB, ⅡA, ⅡB, ⅢA, ⅢB or ⅢC (pTNM staging) of the robotic group were 6, 50, 55, 9, 10, 22, 63, 25, 42, 19, 19, 24, 16, 17, 22, 23, 20, 23, 15, respectively. The above indicators of the laparoscopic group were 4, 42, 84, 12, 6, 18, 81, 37, 39, 27, 32, 19, 25, 13, 19, 28, 39, 16, 27, respectively. There was no significant difference in the above indicators between the two groups ( Z=-1.880, -1.827, -0.140, -1.460, P>0.05). (3) Complications: cases with complication classified as grade Ⅰ, grade Ⅱ, grade Ⅲa, grade Ⅲb, grade Ⅳa, grade Ⅳb of Clavien-Dindo classification, cases with death, cases with overall complications, cases with severe complications of the robotic group were 9, 6, 3, 2, 2, 0, 0, 22, 7, respectively. The above indicators of the laparoscopic group were 12, 15, 9, 6, 3, 1, 1, 47, 20, respectively. There were significant differences in cases with overall complications, cases with severe complications between the two groups ( χ2=7.309, 4.790, P<0.05), and there was no significant difference in cases with complication classified as grade Ⅰ, grade Ⅱ, grade Ⅲa, grade Ⅲb, grade Ⅳa, grade Ⅳb of Clavien-Dindo classification, cases with death between the two groups ( χ2=0.080, 2.730, 1.042, 0.704, 0.000, 0.000, 0.000, P>0.05). (4) Stratified analysis: of the patients with overall complications in robotic group, cases of male or female, cases aged ≥65 years or <65 years, cases with body mass index (BMI) ≥24 kg/m 2 or <24 kg/m 2, cases with tumor diameter ≥5 cm or <5 cm, cases with or without abdominal surgery, cases with tumor located at upper stomach or middle stomach, cases in Ⅰ-Ⅱ grade or Ⅲ grade of American Society of Anesthesiologists (ASA) classification, cases with well differentiated tumor or undifferentiated tumor, cases in stage Ⅰ-Ⅱ or stage Ⅲ (pTNM staging), cases with operation time ≥250 minutes or <250 minutes, cases with volume of intraoperative blood loss ≥150 mL or <150 mL, cases with the number of lymph node dissected ≥25 or <25 were 15, 7, 14, 8, 11, 11, 16, 6, 4, 18, 19, 3, 15, 7, 7, 15, 8, 14, 12, 10, 12, 10, 14, 8, respectively. The above indicators of patients with overall complications in the laparoscopic group were 33, 14, 17, 30, 16, 31, 36, 11, 11, 36, 27, 20, 31, 16, 13, 34, 14, 33, 24, 23, respectively. Of the patients with overall complication, there were significant differences in cases of male, cases aged ≥65 years or <65 years, cases with BMI<24 kg/m 2, cases with tumor diameter≥5 cm, cases without abdominal surgery, cases with tumor located at middle stomach, cases in Ⅰ-Ⅱ grade or Ⅲ grade of ASA classification, cases with well differentiated tumor, cases in stage Ⅲ (pTNM staging), cases with operation time ≥250 minutes, cases with volume of intraoperative blood loss <150 mL, cases with the number of lymph node dissected ≥25 between the two groups ( χ2=6.683, 4.207, 6.761, 7.438, 4.297, 6.325, 9.433, 3.970, 4.850, 4.911, 3.952, 3.915, 6.865, 4.128, P<0.05) and there was no significant difference in cases of female, cases with BMI≥24 kg/m 2, cases with tumor diameter <5 cm, cases with abdominal surgery, cases with tumor located at upper stomach, cases with undifferentiated tumor, cases in stage Ⅰ-Ⅱ (pTNM staging), cases with operation time < 250 minutes, cases with volume of intraoperative blood loss ≥150 mL, cases with the number of lymph node dissected <25 between the two groups ( χ2=0.277, 1.052, 1.996, 1.552, 2.172, 2.594, 2.244, 3.771, 1.627, 3.223, P>0.05). (5) Follow-up: 262 patients were followed up postoperatively for 2 months. During the follow-up, no patient was diagnosed with tumor recurrence, and one patient in the laparoscopic group died of severe infection. Conclusions:The Clavien-Dindo classification can be used in evaluating postoperative short-term complications of Da Vinci robotic-assisted or laparoscopic-assisted total gastrectomy with D 2 lymphadenectomy. Compared with laparoscopic-assisted total gastrectomy with D 2 lymphadenectomy, Da Vinci robotic-assisted total gastrectomy with D 2 lymphadenectomy has the advantages of minimally invasiveness, low incidence of overall and severe complication.
ABSTRACT
Objective@#To construct and confirm a predictive model for the risks of cardiovascular diseases (CVD) with metabolic syndrome (MS) and its factors in Xinjiang Kazakh population.@*Methods@#A total of 2 286 Kazakh individuals were followed for 5 years from 2010 to 2012 as baseline survey. They were recruited in Xinyuan county, Yili city, Xinjiang. CVD cases were identified via medical records of the local hospitals in 2013, 2016 and 2017, respectively. Factor analysis was performed on 706 MS patients at baseline, and main factors, age, and sex were extracted from 18 medical examination indexs to construct a predictive model of CVD risk. After excluding the subjects with CVD at baseline and incomplete data, 2007 were used as internal validation, and 219 Kazakhs in Halabra Township were used as external validation. Logistic regression discriminations were used for internal validation and external validation, as well as to calculate the probability of CVD for each participant and receiver operating characteristic curves.@*Results@#The prevalence of MS in Kazakh was 30.88%. Seven main factors were extracted from the Kazakh MS population, namely obesity factor, blood lipid and blood glucose factor, liver function factor, blood lipid factor, renal metabolic factor, blood pressure factor, and liver enzyme factor. The area under the curve (AUC) for predicting CVD in the internal validation was 0.773 (95%CI 0.754-0.792). In the external validation, the AUC for predicting CVD was 0.858 (95%CI 0.805-0.901).@*Conclusions@#The CVD risk prediction model constructed by 7 main factors extracted from Kazakh MS patients has high validation efficiency and can be used for risk assessment of CVD in Xinjiang Kazakh population.
ABSTRACT
Objective:To construct and confirm a predictive model for the risks of cardiovascular diseases (CVD) with metabolic syndrome (MS) and its factors in Xinjiang Kazakh population.Methods:A total of 2 286 Kazakh individuals were followed for 5 years from 2010 to 2012 as baseline survey. They were recruited in Xinyuan county, Yili city, Xinjiang. CVD cases were identified via medical records of the local hospitals in 2013, 2016 and 2017, respectively. Factor analysis was performed on 706 MS patients at baseline, and main factors, age, and sex were extracted from 18 medical examination indexs to construct a predictive model of CVD risk. After excluding the subjects with CVD at baseline and incomplete data, 2007 were used as internal validation, and 219 Kazakhs in Halabra Township were used as external validation. Logistic regression discriminations were used for internal validation and external validation, as well as to calculate the probability of CVD for each participant and receiver operating characteristic curves.Results:The prevalence of MS in Kazakh was 30.88%. Seven main factors were extracted from the Kazakh MS population, namely obesity factor, blood lipid and blood glucose factor, liver function factor, blood lipid factor, renal metabolic factor, blood pressure factor, and liver enzyme factor. The area under the curve (AUC) for predicting CVD in the internal validation was 0.773 (95% CI 0.754-0.792). In the external validation, the AUC for predicting CVD was 0.858 (95% CI 0.805-0.901). Conclusions:The CVD risk prediction model constructed by 7 main factors extracted from Kazakh MS patients has high validation efficiency and can be used for risk assessment of CVD in Xinjiang Kazakh population.
ABSTRACT
Objective@#To compare metabolic syndrome(MS)with Framingham risk score as predictors of cardiovascular disease(CVD)among Kazakhs population.@*Methods@#The participants were the residents who had been followed up for more than 5 years in representative areas of Kazakhs in Xinjiang. We assigned MS a continuous risk score for predicting the development of CVD based on the weights of MS components. MS and Framingham risk score were compared in terms of their ability in predicting years in representative areas of Kazakhs in Xinjiang. We assigned MS a continuous risk score for predicting the development of CVD based on the weights of MS components. MS and Framingham risk score were compared in terms of their ability in predicting development of CVD using Cox regression and receiver operating characteristic curve.@*Results@#The incidence of CVD was 13.87%. The incidence of CVD was higher in the MS group than it in the non-MS group(21.59% vs 11.10%, P<0.001). The area under the receiver operating characteristic(ROC)curve of MS risk score was significantly larger than that of MS classification(0.727 vs 0.585, P<0.001); the area under the curve of MS risk score was close to that of Framingham risk score(0.732 vs 0.727, P=0.673). The association between CVD and each quintile of MS risk score was more significant than that between Framingham risk score and CVD under the same exposed condition(4.61, 9.33, 14.15, 22.29 vs 3.69, 6.36, 8.47, 16.99).@*Conclusion@#MS risk score that included age may be a better predictor of CVD among Kazakhs population.
ABSTRACT
Objective@#To investigate the effect of long-chain non-coding RNA Fez family zinc finger protein 1 antisense RNA1 (lncRNA FEZF1-AS1) on the biological function of hepatocellular carcinoma (HCC).@*Methods@#SMMC771 and BEL-7402 cells were transfected with sh-FEZF1-AS1 and OE-FEZF1-AS1, respectively. The expression of lncRNA FEZF1-AS1 was detected by real-time quantitative PCR. Cell proliferation was detected by Cell Counting Kit-8 (CCK-8), and apoptosis was detected by flow cytometry. The effects of lncRNA FEZF1-AS1 on invasion and migration were detected by Transwell and wound healing assays. The expression levels of adhesion molecules were detected by Western blot. The effect of lncRNA FEZF1-AS1 on the in vivo growth was verified by nude mice xenograft experiments.@*Results@#The silencing or ectopic expression of lncRNA FEZF1-AS1 inhibited or promoted the proliferation of hepatocellular carcinoma cells. CCK-8 assay showed that the proliferation abilities of SMMC7721 and BEL-7402 cells in sh-FEZF1-AS1 transfection group significantly decreased, achieving (35.43±4.06)% and (34.68±3.97)%, respectively, on the fifth day. There were significant differences between sh-FEZF1-AS1 group and sh-NC group [52.21±8.46)% and (53.76±7.64)%] (all P<0.05). In contrast, the proliferation ability of SMMC7721 and BEL-7402 cells transfected with OE-FEZF1-AS1 was significantly increased, achieving (83.49±6.92)% and (80.31±3.13)%, respectively, on the fifth day. There were significant differences between OE-FEZF1-AS1 and OE-NC group [53.03±8.84)% and (55.11±7.09)%] (all P<0.05). The subsequent flow cytometry results showed that cell apoptotic rates of SMMC7721 and BEL-7402 cells transfected with sh-FEZF1-AS1 were (13.02±1.38)% and (11.88±1.29)%, respectively, which were significantly higher than those in sh-NC groups [(5.57±1.46)% and (8.06±1.42)%, respectively, all P<0.05]. In contrast, the apoptotic rates of SMMC7721 and BEL-7402 cells transfected with OE-FEZF1-AS1 were (3.01±0.39)% and (3.22±0.43)%, which were significantly lower than those in OE-NC groups [(6.68±0.96)% and (6.63±0.45)%, all P<0.05]. In addition, knockdown or overexpression of lncRNA FEZF1-AS1 expression inhibited or enhanced the migration and invasion abilities as well as the levels of adhesion molecules in hepatocellular carcinoma cells. After 30 days of feeding under the same conditions, the tumor volumes of sh-FEZF1-AS1 and sh-NC SMMC7721 cells xenograft mice models were (0.26±0.03) cm3 and (0.63±0.06) cm3, respectively, showing significant difference (P<0.05). The tumor volumes of sh-FEZF1-AS1 and sh-NC BEL-7402 cells were (0.31±0.02) cm3 and (0.72±0.08) cm3, and the difference was statistically significant (P<0.05).@*Conclusion@#lncRNA FEZF1-AS1 may strengthen the growth, migration and invasion of hepatocellular carcinoma cells.
ABSTRACT
Objective To provide experimental materials for exploring the function of breast cancer susceptibility gene 2(BRCA2) gene by establishing of an mouse immortalized mammary gland epithelial cell line as a cell model system.Methods In this study,the primary mouse mammary epithelial cells were isolated and purified by enzyme digestion and differential centrifugation.The resulting primary mouse mammary gland epithelial cells were transducted with lentivirus expressing human telomerase (hTERT) gene,and screened by hygromycin B.The surviving epithelial cells were further characterized by morphology observations and cytokeratin marker detection.Results Immortalized mouse mammary epithelial cells were obtained by infection of MMECs with lentivirus expressing human telomerase(hTERT) gene,screened by hygromycin B.Morphology observations and detection of the cytokeratin marker showed the immortalized MMECs had a typical morphology of luminal epithelial cells with strong expression of cytokeratin 14.Conclusion An immortalized mouse luminal epithelial cell line is successfully established with an uniform morphology,which provides a cell model system for the future exploration on BRCA2-related tumorigenesis.
ABSTRACT
Objective To compare metabolic syndrome(MS)with Framingham risk score as predictors of cardiovascular disease( CVD) among Kazakhs. Methods The participants were the residents who had been followed up for more than 5 years in representative areas of Kazakhs in Xinjiang. We assigned MS a continuous risk score for predicting the development of CVD based on the weights of MS components. MS and Framingham risk score were compared in terms of their ability in predicting years in representative areas of Kazakhs in Xinjiang. We assigned MS a continuous risk score for predicting the development of CVD based on the weights of MS components. MS and Framingham risk score were compared in terms of their ability in predicting development of CVD using Cox regression and receiver operating characteristic curve. Results The incidence of CVD was 13.87％. The incidence of CVD was higher in the MS group than it in the non-MS group(21.59％ vs 11.10％, P<0.001). The area under the receiver operating characteristic(ROC)curve of MS risk score was significantly larger than that of MS classification(0.727 vs 0.585, P<0.001);the area under the curve of MS risk score was close to that of Framingham risk score ( 0. 732 vs 0.727, P=0.673). The association between CVD and each quintile of MS risk score was more significant than that between Framingham risk score and CVD under the same exposed condition(4.61、9.33、14.15、22.29对3.69、6.36、8.47、16.99) . Conclusion MS risk score that included age may be a better predictor of CVD among Kazakhs.
ABSTRACT
VP1 gene encoded by the newly identified caprine enterovirus CEV-JL 14 was amplified and cloned to prokaryotic expression vector pGEX-4T-1.Recombinant GST-VP1 fusion protein was expressed,purified,emulsified with Freund's complete adjuvant and used to immunize the BALB/c mice following a standard procedure.The spleen cells from immunized mice were collected and fused with myeloma cells after its antibody titer reached over 104 times detected by indirect ELISA.Hybridoma cell clones secreting monoclonal antibodies against VP1 were screened and their stability and specificity were further determined.The identified hybridoma cells were injected to mice intraperitoneally and ascites were collected at 7 DPI.Isotypes of the monoclonal antibodies against the recombinant VP1 protein were characterized to be either IgG1 or IgG2b,which showed a high specificity for detection of caprine enterovirus antigens by immunoperoxidase monolayer assay,thus laying a solid basis for future study related to viral pathogenesis,detection and diagnostics for caprine enterovirus infection.
ABSTRACT
Objective To investigate the clinical efficacy of Dahuang Xiaozhi Suppository in treating chronic abacterial prostatitis/chronic pelvic pain syndrome (CABP/CPPS) of moist heat and blood stasis syndrome. Methods Two hundred patients of CABP/CPPS were randomly divided into control group and observation group, 100 cases in each group. 2 groups were disabled anti-infective meidicne and other preparations, and received diet and life intervention. The control group received the treatment of Qianliean Suppository, and the observation group received the treatment of Dahuang Xiaozhi Suppository, one capsule each time, once a day, into the anus depth of about 3–4 cm. Ten days were a treatment course with two day interval between each course of treatment. The treatment lasted for three courses. The clinical efficacy of the two groups was observed and compared. The indexes including the scores of NIH-CPSI, leukocyte count and lecithin corpuscles in prostatic fluid, and urinary flow rate were evaluated. Results The total effective rate was 100% (100/100) in the observation group and 78% (78/100) in the control group, and the observation group was much higher than control group (P<0.05). The scores of NIH-CPSI and leukocyte count in both groups were significantly lower after treatment (P<0.01), and those in observation group weresignificantly lower than those in control group (P<0.01). The cases with lecithin corpuscles++++in both groups were significantly more after treatment (P<0.01), and those in observation group were significantly more than those in control group (P<0.01). The peak flow rate and mean flow rate in both groups were higher after treatment (P<0.01), and it was higher in observation group (P<0.01). Conclusion The efficacy of Dahuang Xiaozhi Suppository in treating CABP/CPPS of moist heat and blood stasis syndrome is remarkable, and it is better than Qianliean Suppository.
ABSTRACT
Objective To investigate the clinical efficacy of Dahuang Xiaozhi Suppository combined with tetracycline in treating type Ⅲ prostatitis infected with nano-bacteria. Methods Totally 120 patients of type Ⅲprostatitis infected with nano-bacteria were randomly divided into treatment group and control group, with 60 cases in each group. Both groups were disabled anti-infective drugs and other preparations for diet and life intervention. Both groups received tetracycline, once a tablet, twice a day, orally. The treatment group received Dahuang Xiaozhi Suppository, once a capsule, once a day, placing in the anus 3-4 cm. 10 d was a treatment course, for 3 courses. The clinical efficacy, major symptoms improving time, NIH-CPSI, leukocyte count and ecithin corpuscles in expressed prostatic secretion (EPS), urinary flow rate, and cytokine content of TNF-α, IL-6, IL-8, were evaluated. Results The total effective rate was 100.0% (60/60) in treatment group and 83.3% (50/60) in the control group, and treatment group was higher than the control group (P<0.05). Pelvic pain, urinary symptom, and scrotum wet improvement time of treatment group were lower than the control group (P<0.05). Compared with before the treatment, the NIH-CPSI pain scores, urinary symptom scores, life quality score, leukocyte count and TNF-α, IL-6, IL-8 content of EPS in both groups were significantly lower after treatment (P<0.05), and the cases with lecithin corpuscles +++ - ++++ in both groups significantly increased after treatment (P<0.05). The urinary peak flow rate and mean flow rate in both groups were higher after treatment (P<0.05). There was statistical significance in the scores of NIH-CPSI pain, urinary symptom and life quality, leukocyte count and TNF-α, IL-6, IL-8 content of EPS, and the cases with lecithin corpuscles ++++ between the two groups (P<0.05). Conclusion Dahuang Xiaozhi Suppository can improve the efficacy of treating type Ⅲ prostatitis infected with nano-bacteria. Combining Dahuang Xiaozhi Suppository with tetracycline can reduce prostate inflammation, with obvious efficacy.
ABSTRACT
Objective To investigate the correlation between prognosis of patients with severe acute pancreatitis and changes of plasma albumin. Methods A total of 235 patients with severe pancreatitis who were admitted into hospital from September 2008 to October 2013 were selected as research object. According to the prognosis, they were divided into the survival group (143 cases who were recovered and still alive) and the death group (92 cases who died of the deterioration of diseases). Retrospectively analyzed the basic situation of the pa-tients and the changes of serum albumin levels in the two groups. And the correlation between prognosis of patients with severe acute pancrea-titis and changes of plasma albumin were evaluated by the logistic regression analysis. Results Compared with the death group,there were significant differences (P<0. 05) in terms of age,APCHEⅡ score,Ranson score,SOFA score,length of hospital stay,duration of mechani-cal ventilation,continuous renal replacement therapy,average serum albumin level,decrease of serum albumin within 24 hours,and variation of serum albumin. And ROC curves suggested the best cutoff value of decrease of serum albumin within 24 hours to predict death in patients within 24 hours was 4. 24 g/L,and the best cutoff value of variation of serum albumin to predict death was 13. 6%. Logistic regression analy-sis showed that the major risk factors of death in severe acute pancreatitis were decrease of serum albumin within 24 hours,variation of serum albumin within 24 hours,average serum albumin level,and the APCHEⅡscore. Conclusion Changes in plasma albumin can reflect the se-verity of severe acute pancreatitis,and the sharp decrease of serum albumin within 24 hours can be used as a risk factor for death.
ABSTRACT
Objective To investigate the effect of traditional Chinese medicine retention-enema combined with tamsulsosin hydrochloride capsules in treating chronic abacterial prostatitis/chronic pelvic pain syndrome. Methods Two hundred patients of CABP/CPPS from Affiliated Hospital of Gansu University of TCM during September 2007-October 2012 were randomly divided into control group and observation group, 100 cases in each group. The control group received the treatment of tamsulsosin hydrochloride capsules, 0.2 mg/d, qn, and the observation group received the treatment of traditional Chinese medicine retention-enema additionally. The course was 4 weeks. The clinical effects of the two groups were observed and compared. The indexes including the scores of NIH-CPSI, leukocyte count and lecithin corpuscles in prostatic fluid, urinary flow rate were evaluated. Results The total effective rate was 100%(100/100) in observation group, and 88% (88/100) in control group. There was significant difference between the two groups (P0.05). Conclusion Traditional Chinese medicine retention-enema combined with tamsulsosin hydrochloride capsules can significantly improve the clinical effect of CABP/CPPS.
ABSTRACT
<p><b>OBJECTIVE</b>To observe the variations of intracellular localization and expression of importin 8 (IPO8) during osteoblast differentiation.</p><p><b>METHODS</b>Alizarin red staining, immunocytochemistry and real-time PCR were employed to examine the changes in the intracellular localization and expression of IPO8 mRNA during induced osteogenic differentiation of human osteoblast-like SaOS-2 cells.</p><p><b>RESULTS</b>Numerous red mineralized nodules were observed on day 10 in the induced cells with alizarin red staining. Immunocytochemical staining showed that IPO8 immunoreactivity was the strongest in the perinuclear cytoplasm of the cells. On day 3 of osteoblast differentiation, IPO8 immunoreactivity in the cell nuclei became stronger. On day 7, IPO8 was located mainly in the nuclei, and on day 10 the cells were osteocyte-like and IPO8 was distributed in the cytoplasm. Real-time PCR showed a significantly increased expression of OPN mRNA during osteoblast differentiation, and the expression level of IPO8 mRNA was the highest on day 3 and declined on days 7 and 10.</p><p><b>CONCLUSION</b>The intracellular localization and expression level of IPO8 undergo significant changes during osteogenesis, indicating its role in regulating osteoblast differentiation.</p>
Subject(s)
Humans , Cell Differentiation , Cell Line , Osteoblasts , Cell Biology , Metabolism , Osteogenesis , beta Karyopherins , MetabolismABSTRACT
Objective To investigate the suppression of mrp1 and MRP1 induced by small interfering RNA and the restoration of sensitivity to chemotherapeutic drugs in the multidrug-resistant hepatocellular carcinoma cell lines HepG2/mrp1. Methods mrp1-targeted small interfering RNA duplexes were designed and composed and introduced into multidrug-resistant hepatocellular carcinoma cell lines HepG2/mrp1. The suppression of mrp1 mRNA and its gene product MRP1 was examined by RT-PCR and flow cytometry (FCM), respectively. MTT assay was performed to measure the reverse effect of small interfering RNA based on the results of ICs0. Results The overexpression of mrp1 mRNA and MRP1 was effectively suppressed by small interfering RNAs. The level of mrp1 mRNA in the transfected HepG2/mrp1 cells was reduced to (86.36±2.76)% and MRP1 to (89.38±3.76)%compared with those of the controls. The resistance to ADR was reversed five-fold, which indicated the restoration of sensitivity to drugs. Conclusion Small interfering RNA can inhibit mrp1 expression effectively and reverse the multidrug resistance mediated by MRP1.
ABSTRACT
BACKGROUND:Previous in vitro studies mainly focused on morphological and nerve marker aspects in the study of bone marrow mesenchymal stem cells (BMSCs)-derived neuron-like cells,but less focused on the olectrophysiological properties of neuron-like cells following differentiation.OBJECTIVE:To study the electrophysiological changes of differentiation from BMSCs into neuron-like cells after induction by brain-derived neurotrophic factor (BDNF)/basic fibroblast growth factor (bFGF)/alltrans-retinolc acid (AT-RA).DESIGN,TIME AND SETTING:The cytological comparative in vitro study was performed at the Department of Neural Cell Laboratory,Tianjin Huanhu Hospital and College of life Science of Nankai University from June 2005 to October 2007.MATERIALS:Totally 3 male Wistar rats (6-week old,weighing about 160 g) were used in this study.METHODS:BMSCs were cultured and purified by their characteristic of plastic adhesion in vitro,and then induced by BDNF,bFGF and AT-RA,and differentiate into neuron-like cells.Whole-cell patch damp technique was used to detect cell membrane current prior to and 3 days following induction.MAIN OUTCOME MEASURES:MSC phenotype was determined by flow cytometry.Cell morphology was observed under the inverted microscope before and after differentiation.Neuron specific enolase expression was assessed by immunocytochemistry.Whole-cell current results were measured.RESULTS:Flow cytometry results demonstrated that CD90 positive rate (99±3)%,CD31 (3.4±0.8)%,and CD34 (0.3±0.1)%.This indicated that these cells were undifferentiated stem cells,with purity of 95%.Undifferentiated MSCs under the optical microscope were mostly fiat cells with processes,similar to fibroblast-like cells.Neuron-like cells appeared 3 days following induction.Immunocytochemistry results showed that MSCs before induction were weakly positive for neuron specific enolase,but strongly positive for neuron specific enolase.At 72 hours,the differentiated rate was (24.01±3.76)%.The peak currents of outward currents in neuron-like cells were significantly higher in the induction group compared with the control group (P ＜ 0.05),but no inward Na~+ current was detected.CONCLUSION:(bFGF & BDNF)/AT-RA could induce the differentiation of MSCs into neuron-like cells.These cells showed the tendency to differentiate into mature neurons,though having no electrophysiological properties of mature neurons.
ABSTRACT
Objective To study the effect of hypothemah on the early inflammatory reaction in acute lung injury induced by intestinal ischemia-repeffusion(IlR)in rabbits.Method Seventy-two healthy rabbits provided by Peking Union Medical Colege Hospital Anhnal center were randomly divided into four groups(n=18 pergroup):(1)normothermia control group (rectal temperature 37-38 C;sham group);(2)normothermia IlR group(rectal temperature 37-38 C);(3)mild hypothermia HR group(rectal temperature 32-35℃);and (4)moderate hypothermia IIR group(rectal temperature 28-31.9C).Acute lung injury was induced by claIllp.ithe superiornteric artery(SMA)for 1 hour and declamping the SMA for 6 hours.Hypothermia WaS induced by surface cooling.Before and 2.4 and 6 hours after IIR,the Olasmlevels o,IL-,IL-6 and IL10 were measured.All rabbits were killed 6 hours after IIR and water content in lung tissue Wttk'assessed.Iaght mieropic examination was performed tbr morphological assessment of the hmg.The data were analyzed by AN()VA.Statistical significance wag dned as a P of<0.05.Results In the IIR groups,the plasma levels ofTHE-a.IL-l,IL-6 and IL-10 and lung water were increased.There Was evidence of acute lung injury from morphologi-cal assessment of the lung.The acute lung injury induced by IIR was improved by hypethennia.Mild hypothermia Was similar to moderate hypothermia for the treatment of acute lung injury induced by IIR.ConclusiotMild hy-pothermia and moderate hypothermia Can significantly improve acute lung injury induced by IIR in rabbits.Mild hypothea had similar efficacy to moderate hypothermia for the treatment of acute lung injury induced by IIR.
ABSTRACT
Bone marrow mesenchymal stem cells(BMSCs) are a population of multipotent cells. Many researchers have studied whether BMSCs could differentiate into neurons in vivo and ex vivo. Although some studies didn't agree with about some chemical induction medium inducing neurons, the application of cell transplantion and gene therapy of BMSCs has achieved certain progress showing good future for BMSCs in therapy of nervous system diseases.
ABSTRACT
OBJECTIVE:To evaluate the therapeutic effects and cost-effectiveness of 3 therapeutic regimens in the treatment of vertebrobasilar ischemia. METHODS: 90 cases with vertebrobasilar ischemia were randomly divided into 3 groups: Group A were assigned to receive buflomedil+Flunarizine, Group B to receive Shuxuening + Flunarizine and Group C to receive compound Compound Danshen + Flunarizine. The curative effects and the cost-effectiveness of the 3 Groups after 14-day treatment were analyzed comparatively. RESULTS: The total costs for Group A, B and C were 1 705.06 yuan,2 876.30 yuan and 1 117.34 yuan, respectively; the effective rates were 93.75%, 92.86% and 70.00%, respectively; the cost-effectiveness ratios were 1 818.73, 3 097.46 and 1 596.20, respectively. As compared with Group C, the incremental costs-effectiveness ratios for Group A and Group B were 2 474.61 and 7 694.49, respectively. CONCLUSION: Group A is more preferable among the 3 therapeutic regimens in terms of cost-effectiveness.
ABSTRACT
0.05), higher than those in the nighttime (t=3.63,3.16;P