Objective To sunmarize the clinical experience of emergency laparoscopic choledocholithotomy plus T-tube drainage for acute calculous cholangitis.Methods We retrospectively analyzed the clinical data of 98 cases with acute calculous cholangitis undergoing emergency laparoscopic choledocholithotomy between Mar 2007 to Jul 2011 at our hospital.Results In this study,93 cases with definite diagnosis of acute calculous cholangitis underwent at their acute stage totally laparoscopic choledocholithotomy and T-tube drainage,2 cases received laparoscopic transeystic common bile duct exploration and 3 cases were treated with primary closure of the common bile duct following laparoscopic common bile duct exploration and intra-bile duct stent.All procedures were successful without conversion to open surgery.The average of the operative time and the hospital stay was 96 minutes and 12 days respectively.The major complications included residual stones in 8 cases,bile leakage in 4 cases and intraperitoneal bleeding in I case.All were cured by conservative therapy.Conclusions For most patients of acute calculous cholangitis,emergency T-tube drainage after laparoscopic chuledocholithotomy is safe and effective.

Objectives: The survivors of first-ever stroke are at a high risk of recurrent stroke. The time interval between first-ever stroke and first recurrence of stroke, however, have not been well studied. The aim of the present study was to evaluate the time interval between first-ever and first recurrence of stroke and the risk factors of stroke that were related to the length of time interval. Methods: Patients admitted in our hospitals during 2014 with first recurrence of stroke were included in the study. A total of 377 patients were enrolled and a standardized questionnaire was used to collect data in this retrospective study. Results: The mean time interval among all the subjects was 58.42 months (median, 36.01 months; range 0.16months to 455.98months). The mean time interval was shorter in hemorrhagic stroke group (56.78 months) than in ischemic stroke group (58.75 months), but the difference was not significant (p=0.819). The median of time interval was similar in the two groups. The associated risk factors to the length of time interval were age over 60 years, subtype of first-ever stroke, the length of history of hypertension. Age was the only associated risk factor to the time interval among patients with first recurrence of hemorrhagic stroke. Conclusion: Factors associated with the time interval are different among different types of recurrent stroke. This provides the basis for preventive treatment for recurrent stroke after their first-ever stroke
Stroke

Objective Explore the conditions of the cloning,expression and purification of FMRP.Methods The plasmid pET22b(+)-FMR1,constructed by molecular cloning,was transformed into E.coli BL21(DE3) competent cells and induced to express FMRP by IPTG.Recombinant FMRP was purified by affinity chromatography,verified by Western-blot,and tested for its RNA binding ability.Results FMR1 cDNA was successfully cloned into pET22b(+) vector and expressed in E.coli BL21(DE3).A protein with Mr 79 000 was purified and confirmed to be FMRP.This protein retained the RNA binding ability of FMRP.Conclusion We successfully expressed recombinant hFMRP with high purity and activity in E.coli,which provided a reliable material to study the function of FMRP.

Objective To evaluate the clinical effect of IPSe. max press ceramic endocrowns being used in preserving endodontically treated molars. Methods Forty-five endodontically treated molars were selected from 45 patients in this study. All the molars had been endodontically treated and performed with ultrasonic scaling. After 1-2 weeks, the crowns and pulp chambers were prepared. The impressions and master casts were gained and IPSe. max press ceramic endocrowns were fabricated in the lab. The endocrowns were cemented with resin cement. The further consultations were offered to these molars after 6 months and 1 year. The difference of sulcus bleeding index among these endodontically treated molars and the same teeth in the opposite sides was compared. Results In these cases, 100 % of endocrowns were

OBJECTIVETo investigate the main factors that influence the results of sperm alkaline single-cell gel electrophoresis (SCGE), optimize the conditions, and standardize its procedures.

METHODSUsing alkaline SCGE, we detected the DNA fragments of sperm treated with different concentrations of H2O2 and determined the influences of the number of agarose gel layers, pH during DNA unwinding and electrophoresis, the time of DNA unwinding and electrophoresis, and cumulative sperm number on the results of sperm alkaline SCGE. Then we optimized the procedures, analyzed the repeatability of the optimized method, and examined 40 semen samples using the method.

RESULTSThree agarose gel layers could reduce the background. The optimal pH during DNA unwinding and electrophoresis was 10, and the best times for DNA unwinding and electrophoresis were 40 min and 30 min, respectively. Fifty sperm were adequate to ensure the reliability of the results. Based on the percentage of tail DNA, the intra- and inter-assay repeatabilities of the optimized sperm alkaline SCGE were 3.12% and 7.13%, and by the DNA damage score, they were 2.38% and 6.09%, respectively. Sperm DNA fragments were significantly increased in the infertile patients with oligoasthenoteratozoospermia as compared with healthy fertile males (P <0.05).

CONCLUSIONThe optimized sperm alkaline SCGE, highly repeatable and easy to be standardized, can be applied to the clinical detection of sperm DNA fragmentation in infertile men.

Asthenozoospermia ; genetics ; Comet Assay ; standards ; DNA Damage ; DNA Fragmentation ; Humans ; Hydrogen Peroxide ; toxicity ; Male ; Oligospermia ; genetics ; Oxidants ; toxicity ; Reproducibility of Results ; Sperm Count ; Spermatozoa ; drug effects ; enzymology ; Time Factors

Objective To study the mutagenic action of antiepileptic drugs(AEDs), and find an effective way to prevent the mutagenesis induced by AEDs,by observing the effects of AEDs on serum folic acid(FA) level and sister chromatid exchange (SCE) frequency in epileptic children.Methods Ninty epileptic children were divided into different groups on the basis of the different drugs they had taken, then detected the two indexes at different time points.Results The serum FA level and SCE frequency of the patients significantly decreased and increased after they took carbamazepine (CBZ) and valproic acid (VPA)respectively. The two indexes went back respectively when supplied with FA.Conclusions Both CBZ and VPA possess mutagenic action, yet nitrazepam does not.FA may help repair the chromosome damage and reduce the mutagenesis effects.

Objective To study the subependymal giant cell astrocytoma (SEGA) in detail, on its clinical manifestations, imaging characteristics, pathological subtypes, surgical treatment and prognosis. Methods Five patients with SEGA proved by surgery and pathology were analyzed retrospectively on their clinical manifestations, treatment and prognosis. Results Tuberous sclerosis complex (TSC) combined with SEGA, an autosomal dominant inherited disease, mostly occurred in children. The typical clinical feature was named as Vogt tri-symptoms-sebaceous adenoma, hypophrenia and epilepsy. Because most of tumors were found at the foramcn of Monro, obstructive hydrocephaluseasily occurred due to the obstruction of foramen of Monro and the third ventricle. Five tumors were totally removed by microsurgery without any postoperative complications. No patients received chemotherapy and radiotherapy. Follow-up between 1 and 8 years indicated no recurrence, and all clinical symptoms of these 5 patients were disappeared after operation. Conclusions SEGA belongs to the low-grade intracranial tumors, which has a more satisfied outcome with a low recurrence rate. The major therapy of SEGA is total resection of the tumor by microsurgery, and it has no need to give chemoand radiotherapy after operation.

Objective To evaluate the clinical application of selective renal artery embolization (SRAE) for the treatment of kidney diseases. Methods Seventy-four cases of renal carcinomas, 11 cases of renal angiomyolipomas (RAML) and 72 cases of traumatic renal haemorrhages were first demonstrated by renal arteriography under Seldinger technique to ensure a site, range and neighbouring relation of lesions and then followed by percutaneous catheterized selective renal arterial embolization with embolic agents. Results The edema around the carcinomas and abscesses became obvious, and bleeding were reduced, which were convenient for operation after SRAE for the preoperative adjuvant treatment of renal carcinomas. The clinical symptoms were improved obviously in 9 eases with advanced renal carcinoma after palliative treatment. The tumour volumes of 11 RAML were decreased evidently by 15 %-65 % with the average of 42 %. The bleeding in 68 cases of traumatic renal haemorrhage were ceased completely in 1-4 days after embolism, 2 cases with serious renal fragmented injury and huge perirenal hematoma combined with shock received successful operation after SRAE, 2 cases bleeding again after SRAE were cured by the second SRAE. No severe complications occurred after embolization in all the patients. Conclusions As a minimal invasive technique,selective renal artery embolization is a safe, effective method with less complications and an adjuvant pre-op-erative therapy for renal carcinoma or a palliative treatment for advanced carcinoma and an effective treatment for RAML and traumatic renal haemorrhage.

microRNAs (miRNAs) are small molecular non-coding RNA with 21-25 nucleotides in a variety of eukaryotic systems, and regulate gene expression at the post-transcriptional level by degrading or translational repressing target messenger RNA (mRNA). Many studies have showed the roles of miRNAs in normal lymphocytopoiesis, giving an interpretative key to the aberrant expression observed in human lymphoid malignancies. The recent advances of understanding the roles of miRNAs in lymphoid malignancies show that miRNAs as tumoral biomarkers can effectively be used for diagnosis, prognosis, and prediction of response to therapy. This review focuses the roles of miRNA in development and differentiation of lymphocytes and the relation of miRNA to lymphoid malignancies.
Cell Differentiation ; Humans ; Lymphocytes ; cytology ; Lymphopoiesis ; genetics ; MicroRNAs ; Neoplasms ; genetics ; pathology ; RNA, Messenger ; genetics

Objective To evaluate the predictive values of different systems for clinical staging of esophageal carcinoma in one group of patients and improve the criteria for T staging,and to provide a basis for accurate clinical staging. Methods A retrospective study was performed in 701 patients with esophageal carcinoma who received radical radiotherapy in our hospital. The prognosis was performed according to American Joint Committee on Cancer ( AJCC) tumor-node-metastasis staging system,Chinese 2004 staging system,the draft of Chinese 2009 staging system,and gross tumor volume of the primary tumor (GTV-T). Results In terms of T stage,patients evaluated according to the AJCC staging system were in relatively early stages;23. 1% of them were in stage T1,and the survival curves of T3 and T4 patients were close to each other;the survival curves plotted according to the Chinese 2004 staging system were well separated, but relatively few patients were in stages T1 and T4 , yielding an uneven distribution;according to the draft of Chinese 2009 staging system, the survival curve of T3 patients intersected that of T4 patients, and up to 43. 2% of patients were in stage T4.The new T staging was performed based on GTV and the extent of tumor invasion into the adjacent tissue and organ, and the results showed that there was no intersection between survival curves and a relatively balanced T stage distribution. In terms of N staging,patients were divided into stages N0 ,N1 ,and N2 . The TNM staging was performed by a combination of N staging and new T staging, resulting in significant separation between survival curves ( P=0. 000) . Conclusions The combination of T staging,which is based on GTV and the extent of tumor invasion,and N staging,which is based on metastasis of lymph nodes, can accurately predict the survival of non-surgically treated patients with esophageal carcinoma.