Aim To investigate the effects of Cariporide on expression of intercellular adhesion molecule-1(ICAM-1) and P-selectin and adhesion of monocytes and endothelial cells induced by lysophophatidylcholine(LPC).Methods The ratio of adhesion of monocytes and endothelial cells was assessed by measuring protein content.The expression of ICAM-1 and P-selectin in endothelial cells was examined by enzyme-linked immunosorbent assay(ELISA).Intracellular pH of endothelial cells was measured with 2',7'-bis(2-carboxyethyl)-5(6)-carboxyfluorescein(BCECF).Results The results showed that LPC enhanced the adhesion of monocytes and endothelial cells in a concentration-dependant and time-related manner.The dosage of 5,10 and 20 ?mol?L-1 Cariporide reduced the adhesive ratio of endothelial cells induced by LPC(5 mg?L-1)from 36% to 23%,18% and 16%(P

Lapareseopic colectomy is commonly performed,but laparoscopic extended right hemicolectomy with D3 lymphadenectomy for cancer located at hepatic flexure of the colon is a complex procedure,even in the hands of experts.Laparoscopic dissection of the lymph nodes around the middle colonic and right gastroepiploic vessels are so complicated that precise vascular anatomy and surgical plane are essential to complete this procedure safely.We herein describe a standard technique for performing laparoscopic extended right hemicolectomy with D3 lymphadenectomy using a medial-to-lateral approach.The main surgical plane of this procedure is the right Toldt's space.The superior mesenteric vein (SMV) is the most important anatomical landmark of vascular dissection.Medial-to-lateral approach makes it easy to locate the right Toldt's space and the SMV.

Objective To investigate the feasibility and safety of laparoscopic myomectomy in patients with large uterine myoma and the tumor located at special sites. Methods A retrospective study of 142 patients underwent laparoscopic myomectomy was done.In the patients,all the myomas were ≥10 cm in diameter;located at the cervix,uterus posterior wall near to the isthmic uteri,or broad ligament.The procedure was completed according to the volume and location of the tumors.For large myomas,the muscle layer was resected to remove the tumor,after removing the major part of the lesion(cut into pieces before moving out),the rest small parts were cut completely.Ligation was used for large tumors with sufficient blood supply in the surface or subserous myomas.For the myomas located in the broad ligament,the ligament was opened to pull out the tumor,and then the tumor was cut into pieces and resected at the root. Results The procedure was completed by laparoscopy in all of the patients,except in one who received laparoscopy-assisted resection.The removed tumors weighed 44 to 1903 g.The operation time ranged from 30 to 175 minutes.Intraoperative blood loss was 10 to 800 ml.No serious complications occurred.Among the cases,follow-up was available in 68 patients for 2 years.During the period,ultrasonography showed recurrent myoma in 2 patients. Conclusions With the improvement of the skills of laparoscopic myomectomy,indications for the laparoscopic operation can be widened.

Objective: To assess the tissue reactions of dogs to a new nanohydroxyapatite. Methods:Three dogs were used for root canal filling experiment, mandibular implanting and subcutaneous implanting experiment. AH-plus root canal sealer was used as control. The dogs were killed after implantation for 2,4 and 12 weeks separately. The tissue reaction was assessed by X-ray and light microscope examination. Results:①Root canal filling experiment: no inflammatory reaction was detected in specimens of n-HA group. In AH-plus group, implantation caused a middling inflammatory reaction after 2 weeks and 4 weeks. After 12 weeks the reaction of apical tissues was slight. ②Mandibular implanting experiment: no inflammatory reaction was showed by all n-HA groups and the group of AH-plus implanted for 12 weeks.Mild inflammatory reaction was observed in the groups of AH-plus implanted for 2 weeks and 4 weeks.③ Subcutaneous implanting experiment:after AH-plus was implanted for 2 weeks and 4 weeks, middling inflammatory reaction was observed. The group of n-HA implanted for 2 weeks showed the same reaction. No obvious inflammatory reaction was found in the other groups. Conclusion:n-HA shows better tissue compatibility than AH-plus.

Objective To investigate the efficacy of pegylated interferon (Peg-IFN) plus ribavirin to treat hepatitis C virus (HCV) recurrence, and analyze possible factors associated with sustained viral responses (SVR). Methods The enrolled 39 patients, who had recurrence of hepatitis C after liver transplantation and received antiretroviral therapy, were analyzed. Treatment was discontinued in 21 patients due to side effects, and the remaining 18 patients [13 males, 5 female,median age of 54 (27-67) years, treatment duration of 25-105 weeks)] were subjected to whole standard treatment. During the treatment, HCV RNA was measured at 4, 12, 24, and 24 weeks after HCV negative change as well as drug withdrawal. SVR was defined as HCV RNA negativity within 24 weeks after the drug withdrawal. The following variables were analyzed: ages, gender,pretreatment viral load, genotype, early viral response (EVR), levels of alanine aminotransferase before treatment and their association with SVR. Results The mean treatment duration was 57weeks with an SVR achieved in 4/18 (22. 2 %). Statistical analysis revealed that the genotype of non1B (P=0.023), RNA ＜106 copy/ml (P= 0. 044) before treatment and EVR (P=0.019) were the variables associated with SVR. Conclusion Genotype of nor-1B, low level RNA before treatment and EVR were the effective predictors of interferon antiviral therapy for recurrent hepatitis C after liver transplantation.

BACKGROUND: It is believed that repetitive transcranial magnetic stimulation (rTMS) may produce such neurophysiological effects as regulating regional cerebral blood flow, neurotransmitters, local metabolism, and neuronal remodeling after nerve tissue injuries. The prognosis ofischemic stroke is related with the cortical function reconstruction in the ipsilateral and contralateral hemisphere of the lesion. Currently studies have not defined whether rTMS can affect the cortical function, protect ischemic neurons and promote motor functional recovery after cerebral ischemia.OBJECTIVE: To investigate the effects of rTMS on rat motor cortical excitability and neural function in acute stage of cerebral ischemia-reperfusion injury.DESIGN: Completely randomized experiment.SETTING: Electroneurophysiological Laboratory of Peking Union Medical College Hospital.MATERIALS: The experiment was completed in the Zoological Research Center of Peking Union Hospital from January to June 2004. Totally 22adult male healthy Wistar rats were randomly divided into treatment group and the control group with 11 in each.METHODS: After determination of the average motor threshold of the right hind limbs, which was 22% of the maximum output, the rats were subjected to middle cerebral artery occlusion for 1 hour followed by reperfusion for 72 hours. At each time point of immediately and at 12, 36 and 60 hours after the initiation of reperfusion, the rats in the treatment group received rTMS treatment (20 Hz, 40% maximum output, 5 seconds for each session with an between-session interval of 2 minutes for a total of 10 sessions), and the site for motor threshold evaluation was used for rTMS stimulation; the rats in the control group recevied no treatment after model establishment. Motor threshold testing was performed in both groups 4 hours after the last session of treatment to avoid immediate-early effects of rTMS on the motor threshold. At 24 and 72 hours of reperfusion, the scores of neural function were recorded according to evaluation systems. All the rats with scores between 1 and 3 were enrolled in statistical analysis were evaluated between.MAIN OUTCOME MEASURES: ① Motor threshold of the rats in both groups before and after injury; ② Neural function scores at 24 and 72 hour reperfusion; ③ Infarct volume at 72 hour of reperfusion.RESULTS: Totally 13 rats entered the final result analysis. Before injury,motor threshold in the treatment and control group was similar (P=0.71),and after the injury, the motor threshold of the control group was 1.49times that of the treatment group but such difference was not statistically significant [(41.62±24.73)% vs (28.00±9.35)%, t=-1.17, P=0.27]. At 24hours of reperfusion, the functional scores of the treatment group and control group were not significantly different (P=0.46), but at 72 hours, the scores of the treatment group were significantly lower than that of the control group (1.60±1.52 vs 7.75±3.62, t=-3.57, P=0.004). The average infarct volume of two groups was (62.00±60.88) mm3 and (20.00±12.41) mm3 at 72 hours of reperfusion, respectively, which, after logarithm transformation,was not significantly different between the two group (t=-1.31, P=0.22),but when the infarct volume was transformed into Log10 values, a significant difference occurred between them (P=0.045).CONCLUSION: rTMS may stabilize and prevent the increment of the motor threshold, time-dependently relieve the neural function disability and reduce the infarct volume after cerebral ischemia-reperfusion injury.

0.05),while the activities of SOD of bone tissue were lower(P

The effect of 5.8 ////mol L-1 propafeone on 0 phase depolarization of action potential were studed in meonatal and adult canine Purkinje fibres. Results showed: 1. in both groups, propafenone caused a reduction if APA and a decrease of Vmax; and the neonatal fibres were less sensitive to propafenone; 2. the inhibition of Vmax by propafenone showed frequency-dependent manner in both groups; and with theincrease of frequencies, the extent to which Vmax was inhibited became similiar in both groups. This sudy suggests that neonates were less sensitive to propafenone, but at higher frequencies neonates showed similiar responses as adults.

; 3. therapy with A&A (A&A); 4. Astragali alone (A); 5. Astragali polysac-charide Ⅰ (APⅠ); 6. AP Ⅱ ; 7. Astragali glucoside (AG), Results The level of serum albumin,albumin mRNA and albumin gene transcription were measured by biochemistry, Northern blot hybridization, nuclear run-on assay and quantity in laser density screening. The level of serum albumin in N was significantly lower than C. The serum albumin concentration in each therapy group was higher than N group. The transcription of the albumin gene was higher in N than in C and highest in A&A. The alterations of northern blot hybridization were same as the transcription results. But both the level of albumin mRNA and the transcription of albumin gene in A, AP I , AP I and AG were no change compared with N. Conclusion A&A increases albumin mRNA expression at least in part by improving the rate of gene transcription, which participate the protection of the decrease of serum albumin in NS. But the effect of A, AP 1 , AP I and AG may mediated by other unknown mechanisms.

To investigate the effect of Chinese herbs (Astragalus-As,Angelica-An,AG-a composition of Astragalus) on muscle protein metabolism in nephrotic rats. Methods The method of incorporation of [3 H-phenylalanine ] ([3 H-phe]) into the muscle was used. Results (l)The incorporation of [3 H-phe] into the muscle of untreated nephrotic rats (1.12 ? 0.37) was significantly lower than ihe normal control rats (2.25?0.47) ( P