To study adhesion of human bifidobacterial strains to cultured human intestinal epithelial cells in vitro mediated by purified adhesin. Results showed that the binding of human bifidobacterial strains to human intestinal epithelial cells appeared to be specific. The adhesion was time and dose-dependent.These data suggested adhesion of human bifidobacterial strains to cultured human intestinal epithelial cells in vitro can be mediated specifically by purified adhesin.

ObjectiveTo investigate the protection effect of bifidobacterial adhesin for intestine ischemia/reperfusion (I/R) injury on gut barrier function in rat.MethodsSeventy-two male SD rats were randomly divided into sham operation group (n =24), I/R model group (n =24) and pretreatment group of bifidobacterial adhesin (pretreatment group, n = 24).Six rats were anatomized at 6 h, 1 d, 4 d and 7d after inducing I/R model in each group, respectively.The pathological changes of the terminal ilea and the blood levels of TNFα, IL-6, IL-10, diamine oxidase (DAO), and the activity and content of D-lactic acid were observed.ResultsThe blood levels of TNFα, IL-6, DAO and D-lactic acid in I/R model group were significantly higher than sham operation group at all time points (P ＜0.05) , while the blood level of IL-10 was no significantly change.The activity of IL-6 and DAO in pretreatment group was significantly lower than I/R model group at all time points (P ＜ 0.05), the blood level of TNFαt in pretreatment group was significantly lower than I/R model group at 1 d, the blood level of D-lactic was significantly lower than I/R model group at 4 d and 7 d (P ＜ 0.05). Intestinal pathological damages were obviously milder in pretreatment group than I/R model group at all time points (Chiu's pathological scores: 6 h, 3.22 ±0.22 vs 3.57 ±0.20;1 d,3.77 ±0.13 vs 3.90 ±0.12;4 d,2.93 ±0.23 vs 3.07 ±0.21;7 d,2.10 ±0.30 vs 2.22 ±0.17,all P ＜ 0.05).ConclusionThe pretreatment of bifidobacterial adhesin could protect the intestinal mucosa from I/R injury, and alleviate intestinal ischemic reperfusion injury.

BACKGROUND: The structural and functional impairment of endothelium cells were mainly presented by lowered endothelium activity, reduced nitrogen monoxide production, as well as increased endothelium vasoconstrictor peptide (EVCP).OBJECTIVE: To study the protective role of astragalus polysaccharide on atherosclerosis induced by eudothelium cell injury, which was compared with that of Captopril.DESIGN: Randomly controlled observation.SETTING: Department of Physiology, Hubei College of Traditional Chinese Medicine; Department of Pathophysiology, Medical College of Wuhan University;Department of Surgery,Hetang Hospital of Guangdong Province;Department of Endocrinopathic Sciences,Renmin Hospital,Wuhan University.MATERIALS: The study was carried out at the Organic Function Laboratory of Hubei College of Traditional Chinese Medicine and the Pathophysiological Department of Wuhan Medical University from July 2001 to December 2002. Forty healthy male rabbits provided by the experimental animal center of Wuhan medical university, weighed of 2.4-3.0 kg, were randomly divided into blank group,model control group,astragalus polysaccharide group and captopril group with 10 rabbits in each group.Astragalus polysaccharide was extracted from Shanxi produced astragalus root and made into injection powder that should be freshly composed with physical saline before usage.METHODS: Rabbits in blank group were raised with granular feed, while rabbits in other three groups were given hyperlipid feed (80％ basal feed mixed with 15％ yolk powder, 0.5％ cholesterin and 5％ lard), in addition with venous injection of bovine serum by 1 mL/kg once, atherosclerosis induced endothelium injury model was established on rabbit by hyperlipid feed combined with immune injury. Rabbits in astragalus polysaccharide group received intraperitoneal injection of polysaccharide of 500 mg/kg once a day; which replaced by 5 mg/kg captopril in captopril group that equals to 5 times clinical dosage; While rabbits in blank group and model control group were given the same volume physical saline of 4 mL/kg for totally 50 days. Blood were collected from SVC 24 after the last medication and then rabbits were put to death, the morphological changes of abdominal aorta were observed under optical microscope, meanwhile the changes of serum total cholesterol, triglycerides, nitrogen monoxide, EVCP, superoxide dismutase, malonaldehyde and total antioxidation activity were examined.MAIN OUTCOME MEASURES: ① Morphological changesof abdominal aorta. ② Changes of serum parameters.RESULTS: All 40 rabbits complete the experiment without loss. ① In contrast with model control group group, the total serum total cholesterol and triglycerides in astragalus polysaccharide group and captopril group obviously decreased [(9.33±1.13), (6.60±0.61), (7.09±0.74) mmol/L, P ＜ 0.05;(3.05±0.44), (1.26±0.16), (2.17±0.46) mmol/L, P ＜ 0.01, P＜ 0.05],malonaldehyde and EVCP markedly decreased [(9.98 ± 1.11 ), (7.10 ±0.68),(9.46±1.27) μmol/L, P ＜ 0.01; (741.90±34.98), (632.62±26.95),(600.74±32.59) ng/L, P ＜ 0.01]. ② Comparing to model control group group,the serum nitrogen monoxide and superoxide dismutase were obviously increased in astragalus polysaccharide group and captopril group ·[(11.04±1.68),(19.96±6.05), (18.35±3.52) μmol/L, P ＜ 0.01, P ＜ 0.05; (159.32±5.26),(207.54±16.98), (197.59±28.41) NU/mL, P ＜ 0.0l, P ＜ 0.05], the total antioxidation activity also increased [(23.8±3.5), (34.7±5.6), (30.7±6.8)％,P ＜ 0.01, P ＜ 0.05]. ③ Either the decrement of serum triglycerides, total cholesterol and malonaldehyde or the increment of nitrogen monoxide, superoxide dismutase and total antioxidation activity in astragalus polysaccharide group was greater than captopril group (P ＜ 0.01). ④ Morphological changes of abdominal aorta: The aorta intima was smooth and endothelium cells were continuous with small intervals between cells in blank control group,endothelium cells presented normal configuration without edema;while intima in model control group became thick and upheaved, part of endothelinm cells detached with widened intervals. The media became thickened with leiomyocyte displaying hyperplasic and infiltering into endothelium, foaming cells could also be observed; the aorta intima was smooth and endothelium was closely connected in astragalus polysaccharide group, the hyperplasia of leiomyocyte was not active and foaming cells seldom observed; while in captopril group, the aorta intima was smooth without obvious detachment of endothelium cells and infiltration of leiomyocyte, leiomyocytes were normal and ranked orderly.CONCLUSION:Astragalus polysaccharide could markedly eliminate serum triglycerides, total cholesterol, malonaldehyde and EVCP, thereby alleviate vascular impairment induced by EVCP, meanwhile markedly increased serum nitrogen monoxide, superoxide dismutase and total antioxidation activity, the intima surface of abdominal aorta could be smooth due to the administration of AP, endothelium configuration would be basically complete, implying that it has better antioxidation property and protective role for endothelium cells.

[Objective]To investigate the micro-structural alterations within whole brain white matter(WM) in cough syrup abuse addiction patients containing codeine,and to explore the correlation between aberrant WH and abuse time of cough medicine abuse patients.[Methods]Thirty cough syrup abuse addiction patients containing codeine and 30 controls participated in the study. Structural changes in FA and(mean diffusivity)MD were examined in cough syrup abuse addiction patients containing codeine which derived from DTI tractography. Pearson correlation analysis was performed to compare the mean FA value and duration of cough syrup abuse addiction in patients.[Results]Cough syrup abuse addiction patients containing codeine had lower FA value in bilateral anterior limb of internal capsule(ALIC)and higher MD in the bilateral hippocampus and insula,right anterior cingulate cortex(ACC)and superior temporal gyrus,compared to the controls. Cough syrup abuse addiction group also had positive correlation between mean FAvalues and duration of cough syrup abuse addiction in patients.[Conclusion]Micro-structural alterations within whole brain white matter(WM)are found in cough syrup abuse addiction patients containing codeine. This disturbance progresses as duration increases of cough syrup abuse addiction in patients.

[Objective]To investigate the value of degree centrality(DC),a novel resting-state fMRI parameter,in voxel-wise whole-brain functional networks analysis in primary insomnia(PI)after acupuncture therapy.[Methods]The resting state fMRI were performed in 29 PI patients and 22 age,education,and sex-matched normal healthy subjects. Analysis of DC map changes between the two patient groups and the control group were performed by two sample t test.(threshold at P<0.05).[Results]Compared with the control group,patients with PI showed significantly reduced DC value in middle temporal gyrus(MTG. R);hippocampus(HIP. B);parahippocampal gyrus(PHG. R);putamen(PUT. R);cuneus(CUN. L).[Conclusions]Changes of DC value occurred in some region of brain in the PI patient groups when compared with the control group. It was indicated that DC ,as a novel resting-state fMRI parameter in the voxel-wise whole-brain functional networks ,might be an appealing alternative approach for further study on pathologic and neuropsychological states of PI.

Objective To evaluate the effects and the safety of peroral endoscopic myotomy (POEM) for achalasia (AC).Methods POEM was performed on 7 AC patients from November 2010 to November 2011.Preoperative dysphagia grade,postoperative complications and short-term and long-term efficacy were recorded.Results POEM was performed successfully on all the 7 patients.The operation time were ranging from 46 to 113 minutes,mean 73 ± 20 minutes.Subcutaneous emphysema and mediastinal emphysema occurred in 2 patients,but cured after treatment.The 1-12 month follow-up showed dysphagia of all the patients was obviously improved.Conclusion POEM is efficient and safe to relieve dysphagia of AC patients.