Administration, Oral ; Adult ; Antioxidants ; administration & dosage ; pharmacology ; Ascorbic Acid ; administration & dosage ; pharmacology ; Humans ; Lipid Peroxidation ; drug effects ; Male ; Middle Aged ; Occupational Health ; Vitamin E ; administration & dosage ; pharmacology

AIMTo establish the methods for determining the activity of sphingosine kinase(SPK) and the content of sphingosine 1-phosphate (S1P) in biological samples.

METHODSThe ECV304 cells were transfected with pcDNA3 vector encoding Flag-labeled SPK gene. The expression of SPK was measured by Western blot assay and the activity of SPK was determined by enzymatic reaction, isotope incorporation and thin-layer chromatography methods. The S1P in biological samples was extracted, digested by alkaline phosphatase and then catalyzed by SPK. The S1P contents were determined according to the amounts of products.

RESULTSSPK gene transfection could enhance the expression and activity of SPK in cells markedly, and the cellular S1P was also increased obviously. HGF stimulation could increase the activity of SPK and cellular S1P in ECV304 cells.

CONCLUSIONMethods for determining the activity of SPK and the content of SPK in biological samples were established.

Cell Line ; Cytophotometry ; Humans ; Isotope Labeling ; Lysophospholipids ; metabolism ; Phosphotransferases (Alcohol Group Acceptor) ; metabolism ; Sphingosine ; analogs & derivatives ; metabolism

Objective To understand the effect of hyaluronic acid (HA) on the proliferation and apoptosis of chondrocytes cultured in vitro with Kashin-Beck disease(KBD) to provide the experimental evidences for treating KBD diseases with HA. Methods The articular cartilage samples collected from KBD patients were selected according to Diagnosis for Kaschin-Beck Disease(GB 16003-1995). And the normal cartilage samples were collected from victims of incidence (control). Chandrocytes were separated and cultured in vitro. Then varying dosages of HA were administered to chondrocytes and individed into 0,100,500 mg/L group, according to HA doages. The effect of HA on the proliferation and apoptosis of chondrocytes cultured/n vitro both KBD and the controls were investigated by methyl thiazolyl tetrazolium(MTT), Annexin V/PI staining on 2~(nd), 4~(th), 6~(th) day. Results In the control group, 500 mg/L group(0.140 ± 0.049) promoted chondrocyte proliferation significantly than 0 mg/L group (0.116 ± 0.021 ) at the 4~(th) day(P < 0.05), similar phenomenon was observed in KBD group in the 6~(th) day between 500 and 0 mg/L group(0.179 ± 0.081,0.128 ± 0.017, P< 0.05). In the KBD group, compared with 0 mg/L (12.860 ± 2.159), both 100 and 500 mg/L( 10.458 ± 1.143,7.877 ± 1.346) inhibited chondrocyte apoptosis rate (P < 0.05). In control, apoptosis rate of 500 mg/L group(4.045 ± 1.204) descreased compared with 0 mg/L group (7.128 ± 1.244, P < 0.05). Conclusion HA can promote the proliferation and inhibit the apoptosis of KBD chondrocytes cultured in vitro, and 500 mg/L HA play more effective role than that of 100 mg/L in promoting proliferation and inhibiting poptosis.

OBJECTIVETo observe the clinical efficacy on tic disorders (TD) treated with local acupuncture.

METHODSThe entire data of 196 cases, of which, 114 cases in acupuncture group were treated mainly with local acupuncture and 82 cases in western medication group were taken Tiapride tablets orally. YGTSS method was adopted for scoring and assessing the clinical efficacy.

RESULTSThe apparent improvement was achieved in YGTSS motor tic score in two groups. The markedly effective rates were 90.4% and 84.2% in acupuncture group and western medication group, respectively (P < 0.05), without significant difference in statistics. The effective rates of transient tic disorder (TTD) in acupuncture group and western medication group were 100.0% and 83.3%, respectively (P < 0.05), which indicated that the efficacy of acupuncture on TTD was advantageous to medical therapy. The effective rates of three kinds of TD in acupuncture group were 100.0%, 88.2% and 84.2% separately, of which, the efficacy of acupuncture on TTD was advantageous as compared with that on chronic tic disorder (CTD) and Toureett's syndrome (TS) (P < 0.05).

CONCLUSIONThe overall efficacy on TD is similar between acupuncture and medical therapy, but the clinical efficacy of acupuncture on TTD is superior to medical therapy. Meanwhile, the efficacy of acupuncture on TTD is advantageous to that on CTD and TS. Hence, the intervention at early time can achieve satisfactory efficacy and probably prevent from CTD or TS.

Acupuncture Points ; Acupuncture Therapy ; Adolescent ; Child ; Child, Preschool ; Female ; Humans ; Male ; Tic Disorders ; therapy

BACKGROUNDOne stage transanal Soave pull-through procedure (TSPP) is a recent popular operation in the treatment of Hirschsprung's disease (HD). With no visible scar and a short hospital stay, it is well accepted by surgeons and mothers. In the conventional Soave procedure, a long rectal muscular cuff left for anocolic anastomosis might increase the incidence of postoperative enterocolitis and constipation. This study presents a modified transanal Soave pull-through procedure (MTSPP) which includes an oblique mucosectomy and an oblique anastomosis with a short split muscular cuff.

METHODSA review of two groups of HD patients was made: 112 underwent conventional transanal Soave procedure from 1999 to 2001 (group 1) and 140 underwent modified transanal Soave procedure from 2002 to 2004 (group 2). A comparison was made between the two groups on operative data and postoperative complications. The data included: age at the operation, operating time, blood loss, time to feeds and hospital stay, occurrence of postoperative enterocolitis or constipation, need for anal dilatation, postoperative bowel function and perianal skin problems.

RESULTSThere was no significant difference between two groups with respect to age, gender, length of colon resected, operating time, blood loss and hospital stay. However occurrence of postoperative enterocolitis, constipation, anastomotic stricture and time needed for anal dilatation were evidently less in group 2 (MTSPP). The mean operating time in group 1 was (106 +/- 39) minutes with a range of 60 to 170 minutes; in group 2 was (101 +/- 36) minutes with a range of 66 to 190 minutes. The average length of the bowel resected in group 1 was (24 +/- 7) cm, range 15 to 58 cm; in group 2 was (26 +/- 8) cm, range 15 to 70 cm. Two patients, one in each group, required laparoscopic assistance because of long aganglionic colon. Another patient in group 2 required laparotomy because of total colonic aganglionosis. Postoperative complications in group 1 included: temporary perianal excoriation in 34 patients (26 were < 3 months of age), enterocolitis in 21, anastomotic stricture in 11, recurrent constipation in 12, cuff abscess in 1, anastomosis leak in 1, soiling in 3 and rectal prolapse in 1. In group 2 post operative complications included: transient perianal excoriation in 37 patients (30 were < 3 months of age), enterocolitis in 13, anastomotic stricture in 5, recurrent constipation in 6, anastomotic leak in 1, adhesive bowel obstruction in 1 and soiling in 4. Complete bowel continence was found in 97 children (86.6%) in group 1 and in 129 children (92.1%) in group 2 at one year followup after operation.

CONCLUSIONSModified transanal Soave pull-through procedure for HD with oblique mucosectomy and anastomosis and a short split muscular cuff is a safe and feasible operation with low incidence of postoperative complication. It is an encouraging improvement of the conventional transanal Soave pull-through procedure. MTSPP is a preferable choice in the surgery of HD.

Adolescent ; Child ; Child, Preschool ; Digestive System Surgical Procedures ; methods ; Enterocolitis ; etiology ; Female ; Hirschsprung Disease ; surgery ; Humans ; Infant ; Infant, Newborn ; Male ; Minimally Invasive Surgical Procedures ; Postoperative Complications ; etiology

Objective To evaluate the clinical effect of embolization of cerebral dural atreriovenous fistulas (cDAVF) of the eavemous sinus through the superior ophthalmic vein approach. Methods Twnety-seven patients with eDAVF of the cavernous sinus were embolized through the superior ophthalmic vein approach. Cerebral angiography and follow-up examination of the patients were performed to evaluate the effect ofernbolization. Results The fistulae showed complete angiographic disappearance in 15 patients, and 12 patients had blood velocity flow reduction at the fistula orifice. Ocular proptosis and chemosis deteriorated transiently in 11 patients after the procedure. The patients were followed-op for 3 to 48 months, and clinical cure was achieved in 17 patients, and 10 showed significant symptom relief. Conclusion cDAVF of the cavernous sinus can be effectively embolized through the superior ophthalmic vein approach.

BACKGROUNDSufentanil target controlled infusion (TCI) provides stable analgesia, better hemodynamic control than a bolus injection of intravenous anesthetics, anticipated recovery and improved quality of anesthesia during perioperative period. This study evaluated the accuracy and feasibility of TCI system for sufentanil at high concentrations in Chinese surgical patients.

METHODSTwelve low risk adult patients undergoing elective surgery under general anesthesia were included in this study. Sufentanil was administered with a specific TCI system incorporating the population pharmacokinetic data of sufentanil previously reported, using a target effect-site concentration of sufentanil 4 or 6 ng/ml. Sufentanil TCI duration was 30 minutes. Frequent arterial blood samples were taken during and up to 24 hours after sufentanil TCI for determination of plasma sufentanil concentrations by liquid chromatography-mass spectrometry/mass spectrometry. The changes of circulatory system function during the procedure, recovery profile and adverse effects were recorded. Measured plasma sufentanil concentrations were compared with the values predicted by the TCI system. The bias (median performance error, MDPE), precision (median absolute performance error, MDAPE) and wobble (variability of performance error) of the sufentanil TCI system were determined.

RESULTSAll patients had stable cardiovascular variables during induction and maintenance of anesthesia. Time to eye opening and extubation were (5.6 + or - 1.7) minutes when TCI set to 4 ng/ml and (7.2 + or - 2.3) minutes when set to 6 ng/ml. There was no episode of agitation, muscle rigidity or intraoperative awareness. The bias (MDPE), precision (MDAPE) and wobble of the sufentanil TCI system were -3.7%, 18.9% and 19.6% respectively during TCI, and the MDPE, MDAPE and wobble were -29.1%, 31.7% and 15.0% respectively after TCI (up to 8 hours).

CONCLUSIONSThe TCI system programmed for sufentanil at 4 or 6 ng/ml was considered acceptable for clinical use in low risk Chinese surgical patients. But the relatively larger MDPE and MDAPE after TCI suggest improvements of the pharmacokinetic model are needed.

Adult ; Aged ; Anesthetics, Intravenous ; administration & dosage ; adverse effects ; Chromatography, Liquid ; Female ; Humans ; Infusions, Intravenous ; methods ; Male ; Middle Aged ; Sufentanil ; administration & dosage ; adverse effects ; Tandem Mass Spectrometry ; Young Adult

OBJECTIVETo investigate the impact of the establishment of chest pain center (CPC) model based on the pre-hospital real-time tele-12-lead electrocardiogram on the door-to-balloon (D-to-B) time and short-term outcome after primary percutaneous coronary intervention (PPCI) of patients with ST-segment elevated myocardial infarction (STEMI).

METHODSA regular CPC was established with pre-hospital transmitted real-time 12-lead electrocardiogram system for pre-hospital diagnosis of STEMI and enabled the STEMI patients to bypass the emergency room and directly treated in the catheter lab to shorten the D-to-B time. The mean D-to-B time, the short-term outcome and medical costs were compared in PPCI patients before (93 cases, group A) and after (149 cases, group B) the establishment of CPC.

RESULTSAfter the establishment of CPC, the annual mean D-to-B time was significantly shortened [(127 ± 79) min in group A vs.(72 ± 23 )min in group B, P < 0.01], the shortest monthly mean D-to-B time was remarkably reduced in group B than in group A [(56 ± 11) min vs. (73 ± 14) min, P < 0.01]. The annual ratio of D-to-B below 90 minutes was significantly increased from 62.4% (58/93) in group A to 91.9% (137/149) in group B (P < 0.05) . The in-hospital mortality rate tended to be lower and the incidence of heart failure during hospitalization was significantly reduced in group B compared with group A [3.4% (5/149) vs. 6.5% (6/93), P > 0.05; 14.1% (21/149) vs. 24.7% (23/93), P < 0.05]. The length of hospital stay was slightly shortened from (8.98 ± 4.89) days to (7.79 ± 5.43) days (P > 0.05). Corrected mean medical cost went down by 9.4% (P < 0.05).

CONCLUSIONThe establishment of CPC may significantly shorten the D-to-B time, improve the short-term outcome and reduce the hospitalization cost for PPCI patients with STEMI.

Adult ; Aged ; Angioplasty, Balloon, Coronary ; Chest Pain ; therapy ; Female ; Humans ; Male ; Middle Aged ; Myocardial Infarction ; therapy ; Percutaneous Coronary Intervention ; Prognosis ; Time Factors

The proliferation and apoptosis of multiple myeloma (MM) cells were regulated by bone marrow microenvironments in which Notch signal plays important role in mediating cell-cell communication. However, the regulatory effect of Notch signal on the proliferation and apoptosis of multiple myeloma cells remains unclear. In this study, regulatory effect of Notch signal on the apoptosis of MM cells induced by DMS (N, N-dimethylsphingosine) was investigated. RT-PCR was used to identify the expression of Notch receptor and related molecules such as Dll-1, Jagged-1, Deltex-1 in MM cell lines. The intracellular domain of Notch (ICN), active form of Notch, was transferred into MM cells by retrovirus. The apoptosis of MM cells was determined by trypan blue exclusion tests and TdT-mediated dUTP nick end labeling (TUNEL) assay. The results showed that multiple myeloma cells expressed the Notch-1 and its related molecules. Notch activated multiple myeloma cell lines were obtained. Activation of Notch protected the multiple myeloma cells from the apoptosis induced by DMS,which was determined by cell viability and TUNEL assay. In conclusion, Notch signal suppressed the apoptosis of multiple myeloma cells and would possibly be a novel therapeutic target.
Apoptosis ; Cell Division ; Humans ; Multiple Myeloma ; drug therapy ; pathology ; Receptor, Notch1 ; Receptors, Cell Surface ; physiology ; Signal Transduction ; Transcription Factors ; physiology

OBJECTIVETo summarize the preliminary experience of laparoscopic surgery in the treatment of radiogenic small bowel damage.

METHODSClinical data of 12 patients with radiogenic small bowel damage undergoing laparoscopic operation in our department from January 2012 to January 2013 were retrospectively reviewed.

RESULTSTwo patients were transferred to laparotomy because of dense adhesion in the entire abdomen and uncertainty of metastatic malignancy, respectively. The laparoscopic surgery was successfully performed in other 10 patients. Three patients received enterostomy or colostomy because of intestinal obstruction or bleeding. Among the other seven patients who underwent intestinal resection and anastomosis, intestinal anastomosis was performed with an small adjunvant incision in the former two cases and performed under laparoscopy in the latter five cases. The post-operative complication included one anastomotic fistula.

CONCLUSIONLaparoscopic surgery can be safely used in radiogenic small bowel damage patients, which can avoid the delayed incision healing.

Colostomy ; Humans ; Intestinal Obstruction ; surgery ; Intestine, Small ; surgery ; Laparoscopy ; Laparotomy