AIM　To study the structural characterization of an acidic polysaccharide, H3, isolated from the seeds of Cuscuta chinensis Lam. METHODS　Both chemical (such as sugar component analysis, methylation analysis, reduction of uronic acid, partial acidic hydrolysis, etc.) and spectral analysis (1HNMR, 13CNMR, IR, etc.) were used to investigate the structural characterization of H3. RESULTS　The molecular weight of H3 was estimated to be more than 1.0×106. The analytical results of sugar components indicated that H3 composed of Rha, Ara, Gal, and Gal A. Methylation analysis, partial acidic hydrolysis and 1H, 13CNMR further identified the linkages and sequence of the residues of H3. CONCLUSION　These results suggest that H3 is a highly branched heteropolysaccharide with structure elucidation for the first time.

Objective To investigate the method of reducing the formation of fibrous capsule by means of changing the surface capacility of silicone breast implants. Methods N vinyl pyrrolidone ( N VP),the hydrophilic monomer, was grafted onto the surface of silicone breast implants by 60 C oradiation. 10 rabbits were used in this study and the implants were buried in the bilateral subcutaneous layers of the back of rabbits. The unchanged implants were used as the control group. At various interval, gross and microscopic examinations were made to observe the fiber capsule formation around the implants.Results Compared with the control group, the grafting implants induced slight histological reaction and the thickness of fiber capsule was decreased statistically in every time point ( P

Object Polysaccharide constituents in the seed of Cuscuta chinensis Lam were investigated Methods Individual constituent was isolated and purified by DEAE cellulose and gel filtration chromatography, and its structural features were further studied by physicochemical constants, and spectral analysis Results Two polysaccharides, named H6 and H8, were obtained from alkalescent or boiling water extract fractions, respectively The molecular mass of H6 was 3 14?10 5 and that of H8 was more than 1 0?10 6 Both structures were found to be complex neutral heteropolysaccharides composed of Ara, Rha, Gal and Xyl Conclusion These polysaccharides were obtained from this plant for the first time

APACHE ; Adult ; Female ; Humans ; Male ; Organophosphate Poisoning ; Young Adult

Objective To analyze the clinical characteristics and resistance of group B hemolytic streptococcus septicemia in neonates,and to provide the evidence for clinical treatment.Methods 7 neonates with group B hemolytic streptococcus septicemia hospitalized from Jan.2001 to Aug.2011 were enrolled in this study.The clinical data and laboratory results of antimicrobial sensitivity were analyzed retrospectively.Results There were 4 cases of early-onset infection and 3 cases of late-onset infection,6 cases with leukopenia,6 cases with c-reactive protein elevated,4 cases with suppurative meningitis,3 cases with septic shock and 2 cases with disseminated intravascular coagulation.All strains were sensitive to penicillin, vancomycin and linezolid.Conclusion Attention should be paid to neonatal group B hemolytic streptococcus septicemia.Penicillin and vancomycin are first choice for this type of infection.

ObjectiveTo investigate the effect of intrathecal (IT) Ro25-6981 (a selective NR2B receptor antagonist) on focal cerebral ischemia-reperfusion (I/R) injury in rats.MethodsSixty healthy male SD rats weighing 280-320 g in which IT catheter was successfully implanted without complication were randomly divided into 4 groups ( n ＝ 15 each):group sham operation (group S) ; group focal cerebral I/R(group I/R) ; group I/R + Ro25-6981 (group Ro) and group I/R+ normal saline (group NS).The right middle cerebral artery was occluded for 2 h with a nylon thread with rounded tip which was inserted into right internal carotid artery and advanced cranially until resistance was met in groups I/R,Ro and NS.In group Ro Ro25-6981 100 μg/10 μl was injected IT at 0,2,23 h of reperfusion,while in group NS NS was injected IT instead of Ro25-6981.Neurological dificit was assessed and scored (0 ＝ no deficit,3 ＝ severe deficit) at 24 h of reperfusion.The infarct size was determined by 2,3,5-triphenyl tetrazolium chloride staining.ResultsIT administration of Ro25-6981 significantly reduced cerebral I/R-induced infarct sized and neurological deficit score in group Ro as compared with groups I/R and NS.ConclusionRo25-6981 injected IT can protect the brain against local cerebral I/R injury.

Objective To study the risk factors related to the severity of post-ERCP hemorrhage in the patients with choledocholithiasis.Methods Clinical data of 56 patients with choledocholithiasis and post -ERCP hemorrhage from January 2008 to August 2015 were analyzed.Made the occurrence of severe hemorrhage as dependent variable,supposed 18 factors in patients and procedure related aspects as possible covariates,analyzed with univariate and binary logistic regression.Results Severe hemorrhage was occurred in 1 1 patients after ERCP.Among patients related factors,female,history of oral corticosteriod,level of bilirubin,size of stone,periampullary diverticula, prolonged time of bleeding-cruor,acute cholangitis,acute pancreatitis and course of disease were proved to be signifi-cant risk factors by univariate analysis(P<0.01 ).Periampullary diverticula,prolonged time of bleeding-cruor and acute cholangitis were independent risk factors in further multivariate analysis(P=0.023,0.036,0.045).Among procedure related factors,EPBD(P<0.01),EST(P<0.01),residual biliary stones(P=0.029)were proved to be significant risk factors by univariate analysis,and EPBD was found as independent risk factor(P=0.029)by multiva-riate analysis.Conclusion Appearance of periampullary diverticula,prolonged time of bleeding -cruor and acute cholangitis were considered as risk factors related to severity of post-ERCP hemorrhage in patients with choledocholi-thiasis.Moreover,EPBD was also an independent risk factor which might aggravate severity of post-ERCP hemor-rhage.

Objective To study the significance of S100A12 in patients with acute pancreatitis (AP).Methods 139 patients with AP were divided into the severe acute pancreatitis (SAP) and moderate acute pancreatitis (MAP) groups.61 patients in the SAP group were further subdivided into the infection group (n =32) and the non-infection group (n =29) based on the presence/absence of secondary infection.Serum samples of these patients were collected on the 3rd,7th and 14th day after treatment.ELISA was used to determinate the S100A12,IL-1 β and IL-6 levels in serum.The area under ROC was used to evaluate the predictive role of S100A12,IL-1β,IL-6 and CRP for infection in patients with SAP.Results The S100A12,IL-1β and IL-6 levels in SAP patients were markedly higher than those in MAP patients and normal controls on the 3rd,7th and 14th day after treatment.These levels decreased toward normal range in MAP patients.They were persistently high in SAP patients after treatment for 7 days,but decreased significantly after 14 days.The serum levels of S100A12,IL-1β,IL-6 and CRP were significantly higher in the infection subgroup(647.5 ± 300.1,155.9 ±48.5,95.7 ±25.5,166.8 ±53.0) than the non-infection subgroup(249.0 ± 176.3,108.0 ± 46.1,64.0 ±38.5,117.9 ±34.9) (P ＜0.05).The sensitivity and specificity of serum S100A12 in diagnosing secondary infection in SAP were 96.8％ and 83.3％,which were higher than those of serum IL-1β,IL-6 or CRP.Conclusion The level of S100A12 was associated with systemic inflammatory response syndrome (SIRS) in AP,and it may serve as a new marker in early diagnosis of SAP and in secondary infection in SAP.

Objective To investigate the effect of postoperatively early stage-function-exercise on the recovery of upper limb function of diseased side after breast cancer modified radical mastectomy.Methods One hundred patients with breast cancer admitted to our hospital from January 2013 to June 2016 were collected.All patients underwent modified radical mastectomy.The patients were divided into the observation group and control group after operation,50 cases in each group.The observation group was given the early stage-function-exercise,while the control group received the routine nursing care.The shoulder joint mobility,affected limb edema degree,self-rating anxiety scale (SAS)score,self-rating depression scale (SDS) score and 36-item short-form health survey (SF-36) score were observed in the both groups.Results When compared with the control group,the patients in the observation group got a significant increase in the shoulder joint activity such as antexion,abduction,internal rotation,external rotation,adduction and rear protraction at postoperative 3,6-months (P<0.05).There was no statistically significant difference between the two groups in upper limb volume,SAS score and SDS score before the operation (P>0.05).However,when compared with the control group,the patients in the observation group got a significant decrease of upper limb volume at postoperative 3 months[(1 543.38±414.93) mL vs.(1 635.58±401.58) mL,P=0.000)],a significantly decrease of SAS score[(37.87±6.90) points vs.(44.07±12.32) points,P=0.000)] and SDS score[(38.32±6.65) points vs.(45.02±11.07) points,P=0.000)] at postoperative 6 months,and a significant increase of SF-36 score at postoperative 6 months [(77.52±7.28) points vs.(70.28±7.55) points,P=0.000)].Conclusion Postoperatively early stage-function-exercise can help to improve the shoulder joint activity degree and quality of life,and reduce the limb edema degree after modified radical mastectomy in the patients with breast cancer.

bjective To clarify the heart rate variability (HRV) changes in patients subjected to deliberate hypotension with alprostadil.Methods Eighty-six elderly patients scheduled for nasal endoscopic surgery in general anesthesia were divided into alprostadil group (group A) and nitroglycerin group (group N) with 43 cases each by random digits table.Hypotension was induced with alprostadil and nitroglycerin through continuous infusion respectively,and the mean arterial pressure (MAP) was reduced to about 25％-30％ of baseline MAP.The MAP,heart rate (HR),total power ( TP ),low frequency (LF),high frequency (HF),and LF/HF were continuously monitored and blood was taken for analysis of lactate (LAC) before deliberate hypotension (T0),at the time of dropping to target blood pressure (T1),at 5 and 30 min after deliberate hypotension (T2 and T3),stopping deliberate hypotersion (T4) and 30 min after recovery from hypotension (T5).Results HR at T1-T4 was faster than that at T0in group N(P ＜ 0.05),and faster than that in group A( P ＜ 0.05 ),HR at T5 was faster than that at T0 in group N( P ＜ 0.05 ),but HR was stable at T1-T5 in group A (P ＞ 0.05 ).There was no significant difference in LAC of group A and group N whether in interior group or between two groups (P＞ 0.05).TP,LF and HF at T1-T4 were lower than those at T0 in two groups ( P ＜ 0.05 ),HF at T1-T4 was higher in group A than that in group N(P ＜ 0.05 ) ; LF/HF was no change at T1-T4 compared with that at T0 in group A (P ＞ 0.05),but increased in group N (P ＜ 0.05 ) which was higher than that in group A at the same time ( P ＜ 0.05 ) ;TP,LF and HF was recovered at Ts in two groups,and HF at T5 in group A was higher than that in group N( P ＜ 0.05 ) ; LF/HF at T5 in group A maintained the level at T0,but decreased in group N and lower than that at T5 in group N(P ＜ 0.05).Conclusion Alprostadil for deliberate hypotension is more likely to maintain cardiac autonomic nerve balance that is helpful for perioperative security of elderly patients.