Objective To investigate the clinical value of shortening double-J stent indwelling time in the treatment of ureteral stone-street complications after flexible ureteroscope lithotripsy . Methods Clinical data of 38 cases of ureteral stone-street complications following flexible ureteroscope lithotripsy from January 2012 to December 2013 in our hospital were retrospectively analyzed.The patients were divided into Group A (extubating the double-J stent two weeks after the surgery ) and Group B (retaining the double-J stent) with 19 cases in each group .The stone clearance results were compared . Results All the urinary calculus in Group A had been removed successfully , including 2 cases of renal colic , 3 cases of irritative symptoms of bladder and 3 cases of gross hematuria.Hospital cost was (766.5 ±153.7) yuan.Urinary calculus were successfully removed in 13 cases in Group B, including 19 cases of gross hematuria and 17 cases of irritative symptoms of bladder.No renal colic occurred.The hospital cost was (1251.2 ± 155.6) yuan.Compared with Group B , Group A has higher success rate of stone clearance , lower hospital cost and lower rate of bladder irritative symptoms and gross hematuria (P<0.05).There were no significant differences between the two groups in the occurrence rate of renal colic (P>0.05). Conclusions Removing the double-J stent 2 weeks after flexible ureteroscope lithotripsy resulted in higher stone clearance rate and less complications compared with retaining the double -J stent.It can reduce the occurrence of irritative symptoms bladder and gross hematuria .

Objective:To research the quality standard for Xilei San. Methods:Imdigo naturalis and calculus bovis were identi-fied by TLC and their contents were determined by HPLC, and Borneolum syntheticum was determined by GC. Results: Indirubin showed good linearity over the concentration range of 0. 043-4. 255 0 μg(r=0. 999 2) with the average recovery of 97. 9%(RSD=1.5%,n=6). Bilirubin showed good linearity over the concentration range of 9.968 ×10 -4-9.968 ×10 -2 μg(r=0.999 9) with the average recovery of 95.3%(RSD =0.55%, n =6). Borneolum syntheticum showed good linearity over the concentration range of 0. 010 3-0. 826 6 mg(r=0. 999 8) with the average recovery of 94. 9%(RSD=3. 2%,n=6). Conclusion: The method is accurate with good reproducibility,which can be used as the quality control for Xilei San.

Objective To analyze the characteristic of twenty-item premature behavioral neurological assessment,and to assess the risk factors of neonatal behavioral neurological assessment(NBNA) in premature infants. Methods Total two hundred and seventy-four premature infants hospitalized in Guangzhou Children's Hospital were assessed with the NBNA after correcting age 40 weeks,premature infants were divided into two groups:normal group (n =221 ) and abnormal group (n =53) according to NBNA. The birth history, mother pregnancy situation, the disease during neonatal period and results in hospital were reviewed,and the risk factors of NBNA in premature infants were assessed. Results There were significant differences in gestational age, birth weight, head circumference, body height, Apgar score, resuscitation time, hospitalization time and total gastrointestinal nutrition time between the two groups( P ＜ 0. 05 ). The incidences of superfoetation,hyaline membrane disease, hemorrhagic and hypoxic brain injury, severe infection, hyperbilirubinemia, hypoglycemia and chronic lung disease were different between the two groups( P ＜ 0. 05 ). There were no differences in gender, antenatal hormone use, anaemia, hypotension and evoked potential abnormality (P ＞0. 05 ). Multivariate logistic regression analysis showed that the risk factors of NBNA score in premature infants would include low Apgar score, low birth weight, hyaline membrane disease, hemorrhagic and hypoxic brain injury, severe infection, hyperbilirubinemia, hypoglycemia and chronic lung disease. Conclusion Although the premature infants corrected age 40 weeks,but the capability and initiative muscular tension are still lower than term infant. Low Apgar score, low birth weight, hyaline membrane disease, hemorrhagic and hypoxic brain injury ,severe infection ,hyperbilirubinemia,hypoglycemia and chronic lung disease are important risk factors related to premature behavioral neurological assessment.

Objective:To investigate the clinical efficacy and outcomes of two separate vertical wiring combined with tension band and Kirschner-wire plus cerclage wire in the treatment of displaced inferior pole fractures of the patella.Methods:From January 201 3 to January 201 5,1 5 consecutive patients (mean age 54.5 years)with inferior pole fractures of the patella were retrospectively included in this study.All the patients underwent open reduction and internal fixation by separate vertical wiring com-bined with tension band and Kirschner-wire plus cerclage wire through longitudinal incision,4.5 d (range:3.1 -5.9 d)after initial injury.A safety check for early knee range of motion was performed before wound closure.The complications including infection,nonunion,loss of fixation and any wire breakage or irritation from implant were recorded.Anteroposterior and lateral views of the knee joint ob-tained during the follow-up were used to assess bony union based on the time when the fracture line disap-peared.At the time of the final outpatient follow up,functional evaluation of the knee joint was conduc-ted by B?stman system.Results:The follow-up time was 1 3.1 months (range:1 2 -1 9 months)after surgery on average,immediate motion without immobilization in all the cases was allowed and there was no case of reduction loss of the fracture and wire breakage.There was no case of irritation from the im-plant.At the final follow-up,the average range of motion (ROM)arc was 1 26.7°(range:1 1 5°-1 40°),the average ROMlag versus contralateral healthy leg was 1 0.3°(range:0°-35°).The mean B?stman score at the last follow-up was 28.9 (range:27 -30),and graded excellent in most cases. Conclusion:Two separate vertical wiring is an easy and effective method to reduce the displaced inferior pole fracture of patella.Augmentation of separate vertical wiring with tension band and Kirschner-wire plus cerclage wire in these patients provides enough strength to protected the early exercise of the knee joint and uneventful healing.By this surgical treatment,excellent results in knee function can be expec-ted for cases of displaced inferior pole fractures of the patella.

Objective To investigate the anatomical and histological features of the rat endolymphatic sac. Methods The temporal bones of the healthy,adult SD rats were removed.The morphology of the endolymphatic sac were studied.Then the decalcified samples were embeded in paraffin.The sections of the endolymphatic sac were stained with HE method and observed histologically,and then examined immunohistochemically by monoclonal antibodies against IgG,CD 3 of the rat to investigate the immunocompetent cells in endolymphatic sac of the rats. Results Simple cuboidal and squamous epithelium were the main types of the epithelium in rat endolymphatic sac CD + 3,IgG + immunoreactive lymphocytes were found mainly in the epithelium of the endolymphatic sac.Conclusion\ The morphology of the rat endolymphatic sac is similar to those of human and guinea pig endolymphatic sacs.Some immunocompetent cells were found in the endolymphatic sac,suggesting that the endolymphatic sac plays an important role in immune of inner ear.\;[

There are 13 members of the Let -7 miRNAs family which is regarded as tumor suppressor gene, locating in nine different chromosome loci. Lin28 acts as negative regulatory factor of miRNA biological recurrence. By selectively blocking the processing synthesis of the Let-7 miRNAs family, Lin28 block the inhibition effect of miRNA of proto-oncogenes and interact with RNA helicase to enhance gene translation at the same time. By not quite clear mechanism, an up-regulation of Let-7 inhibits the expression and function of Lin28. In more and more studies of human tumor, Lin28/Let-7 axsis was proved to be important significance of the tumor's occurrence and development. In this paper, we research briefly the recent progress of the molecular mechanism and related influence factors of ILin28/Let-7 axsis.
Animals ; Humans ; MicroRNAs ; RNA-Binding Proteins

Objective Arrhythmias are one of the main causes of postoperative morbidity after thoracic surgery.The aim of this study was to evaluate whether video-assisted thoracoscopic surgery decreases the risk of postoperative arrhythmias compared with traditional open lung lobectomy.Methods 138 consecutive patients were enrolled from January 2011 to February 2012,after five age and risk factors matched,68 patients undergoing video-assisted thoracic surgery and 70 patients undergoing traditional open lung lobectomy were eligible for analysis.The rhythm was documented preoperatively and postoperatively with standard electrocardiogram (ECG) recording and ECG monitoring.All patients followed 3 months after hospital admission.Results There was a 17.6％ incidence (12/68) of postoperative new-onset arrhythmias undergoing video-assisted thoracic surgery and 18.6％ of patients (13/70) undergoing thoracotomy,but the difference was not statistically significant.In both groups,atrial fibrillation was the most common arrhythmia (60％).There was no significant difference in the other morbidity (P ＞0.05) and mortality rate(P =0.57,1.5％ vs 2.9％) between the two groups.Conclusion New-onset arrhythmias,most frequently atrial fibrillation,are common after lung lobectomy.Regardless of surgical approach,postoperative arrhythmias after lobectomy occurred with equal frequency.New insights in the pathophysiology of postoperative thoracic arrhythmias and advances in prevention and therapy are need future study.

Hongkong pediatric specialist training had successful experiences in the last twenty years.Hongkong hospital authority and Hongkong college of pediatricians managed pediatric specialist training together and made a series of regulations,which have strict training rotation requirements.Training hospitals all need to obtain the authentication including basic training,higher training and overseas training agencies.After 6 years strict training,the trainees have strong pediatric basic theories,procedure abilities,evidence-based practice and team work spirit.In short,the experiences of Hongkong pediatric specialist training is deserved to be learned by the standard training of pediatric resident in mainland China.

Objective To investigate paclitaxel and ezrin-siRNA therapy for metastatic liver cancer.Methods Human metastatic liver cancer cells MHCC97-H were divided into four groups in vitro and in vivo,including control cells,exposure to paclitaxel alone,ezrin-siRNA alone,and the combination of paclitaxel and ezrin-siRNA.Nude mice lung lesions were formed by tail vein injection of tumor cells.The tumor cells'apoptosis rate,wound healing ability,the ability to cross an artificial membrane,and the numbers of metastatic lung lesions were measured.Results The apoptosis rate in normally cultured MHCC97-H tumor cells was 2.52％,compared to the other three groups at 11.66％,2.35％,7.38％ respectively.The wound healing ability was best in the negative control and weakest in cells treated with combination paclitaxel and ezrin-siRNA.The numbers of cells which could cross the artificial membrane in the negative,paclitaxel,ezrin-siRNA,and combination paclitaxel and ezrin-siRNA group were 52.5 ± 3.9,32.2 ± 3.2,26.6 ± 2.4,and 19.4 ± 1.1 respectively.The numbers of metastatic lung lesions in the nude mice (n =40) were 12.5 ±2.4,8.2 ± 1.5,7.0 ± 1.3,and 3.8 ± 0.3 respectively.Conclusions The ezrin-siRNA combined with paclitaxel therapy demonstrated a greater efficacy over single agent therapy for depressing liver cancer growth,motility,aggression,and metastasis in vitro and in vivo.

Objective To establish a double TaqMan real-time fluorescence nested PCR method for rapid detection of α-thalassemia SEA deletion.Methods One hundred blood samples for thalassemia screening were collected from May to July of 2010 in the Tianhe Maternal and Child Health Hospital of Guangzhou.Seven fetal specimens for prenatal diagnosis were collected from December 2010 to February 2011 in Dongguan TungWah Hospital(2 villi and 5 amniotic fluid specimens).Fifty samples of α-thalassemia SEA deletion with genotyping results were selected from the sample bank of our laboratory.The double TaqMan real-time fluorescence nested PCR was applied to detect the truncated sequence of SEA deletion and the normal sequence within deletion range simultaneously for all these samples with the same detecting system.The genotype of α-thalassemia SEA deletion was accurately acquired according to the positive result of fluorescent PCR combined with the Ct value difference.Meanwhile,the accuracy and feasibility of this method were verified and analyzed by parallely detecting these samples with routine gapPCR for α-thalassemia SEA deletion.The genotype could be obtained according to PCR amplification and agarose gel electrophoresis.Results Two amplification efficiencies of the optimized dual TaqMan real-time fluorescence nested PCR system established in this study were both close to 100% with the slops of -3.153 and -3.182,respectively.The results of 50 samples of α-thalassemia SEA deletion with genotyping results showed that this method could not only realize rapid diagnosis,but also effectively avoid false negative or false-positive misdiagnosis by accurately determine the external contamination in the sample.Among 100 blood samples,eleven samples with SEA deletion were detected respectively and the diagnosis coincidence rate of these two methods was 100%,3 samples with SEA deletion were detected by gap-PCR,but 2 samples with SEA deletion and 1 villi sample with normal genotype but contaminated by SEA were detected by this method among 7 fetal samples.Conclusions A double TaqMan real-time fluorescence nested PCR method for α-thalassemia SEA deletion was developed.The method is a rapid and reliable test with simple operation,and is suitable for large-scale population screening and routine molecular diagnosis.