Aim To research the protective effect and mechanisms of taurine on myocardial ischemia and reperfusion injury in rats. Methods Myocardial ischemia reperfusion models were established in SD rats. The effects of taurine on the size of myocardial infarction and the changes of activity of SOD , and the levels of MDA and NO in myocardium and plasma of rats with myocardial ischemia and reperfusion injury were observed. Results In rats with myocardial ischemia and reperfusion injury, the taurine could reduce the size of myocardial infarction (P

Objective To evaluate the potential activity ofSaccharomyces boulardii as an adjuvant to triple therapy for Helicobacter pylori infection,so as to forecast the probable effectiveness of Saccharomyces boulardii in the eradication of Helicobacter pylori and the adverse reaction.Methods A total of 120 patients who received gastroscopy and tested positive for Helicobacter pylori infection were divided into standard triple therapy group and Saccharomyces boulardii group with 60 cases each by random digits table method.Patients were randomized to receive one week standard triple therapy,supplemented with Saccharomyces boulardii in Saccharomyces boulardii group.Saccharomyces boulardii was taken 500 mg per day for one week.All adverse reactions were recorded during the treatment period.13C or 14C urea breath test was performed at four weeks after the end of triple therapy to evaluate the situation of Helicobacter pylori eradication.Results Helicobacter pylori eradication rate in Saccharomyces boulardii group was higher than that in standard triple therapy group [80.00％ (48/60) vs.73.33％ (44/60)],but there was no significant difference (P =0.542).Five adverse reactions including epigastric discomfort,nausea,diarrhea,taste disorder and liver injury were recorded during the treatment period.The incidence of adverse reactions such as epigastric discomfort and diarrhea in Saccharomyces boulardii group was significantly lower than that in standard triple therapy group [13.33％ (8/60)vs.43.33％(26/60),3.33％(2/60) vs.26.67％(16/60)],and there was significant difference (P ＜ 0.05).Conclusion Saccharomyces boulardii as an adjuvant to triple therapy can not improve Helicobacter pylori eradication rate,but can decrease the incidence of adverse reactions during the treatment period and improve the complicance of Helicobacter pylori eradication treatment.

BackgroundThe three-dimensional configuration of the nasolacrimal canal is highly variable with age,gender,and race.But enlargement of the nasolacrimal canal has sparsely been reported in the literature.Objective Computed tomography dacryocystography was performed in patients with unilateral congenital nasolacrimal duct obstruction and normal children to analyze the difference of bilateral nasolacrimal canal.MethodsThis is a retrospective study.Axial scanwith sagittalandcoronalreconstructionwas appliedin computedtomography dacryocystography.Diameters of bilateral nasolacrimal canal of 20 unilateral congenital nasolacrimal duct obstruction patients and 20 normal children were measured.Written informed consent was obtained from each child ' s parents before examination.ResultsThe lacrimal sac,nasolacrimal duct and the peripheral tissue were clearly exhibited by computed tomography dacryocystography.The diameters of the origination,the middle part and the distal end of affected nasolacrimal duct were(5.5±1.4),(5.3±1.2),(5.3±1.6) mm,and normal ones were(3.9±0.8 ),(3.5± 0.8 ),( 3.9± 1.3 ) mm,respectively.These results were statistically significant ( t =5.200,6.967,2.932,P＜ 0.05 ).There was no statistically significant difference in bilateral nasolacrimal canal of normal children (t =0.346,0.281,0.312,P＞0.05 ).Conclusions Computed tomography dacryocystography can image lacrimal passage and their peripheral tissues clearly.The affected nasolacrimal canal diameters of unilateral congenital nasolacrimal duct obstruction were much larger than the fellow sides.The pathogenesis of this phenomenon need much research.

Using in vitro everted gut to investigate the intestinal absorption of the extracts from Polygonum orientale at different concentration. UPLC-MS/MS was used to detect the content of protocatechuic acid, isoorientin, orientin, vitexin, cynaroside, quercitrin, kaempferol-rhamnoside in different intestinal segments, then compared the results with the absorption of chemical components of extractive P. orientale in each intestinal segments, and calculated the absorption parameter. We took the statistic analysis with SPSS statistic software. The influence significance of each factors were analyzed to describe the character of absorption. The absorption of each component is linearity in different intestinal segments and different dose, and the square of coeficient correlation exceed 0.95, which consistent with zero order rate process. The K(a) increase along with the raised dosage of the extractive P. orientale (R2 > 0.95), indicated it is the passive absorption; different intestinal segments have different absorption. And the absorption trend in intestinal is duodenum, jejunum, ileum are greater than the colon. As ingredients are selectively absorbed in intestinal sac, the everted intestinal sac method is selected to assess the intestinal absorption charcteristics of ingredients of extractive P. orientale.
Animals ; Drugs, Chinese Herbal ; pharmacokinetics ; Gastrointestinal Tract ; metabolism ; Intestinal Absorption ; Male ; Polygonum ; chemistry ; metabolism ; Rats ; Rats, Sprague-Dawley

Humans ; Lung Neoplasms ; diagnosis ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; diagnosis ; Pacemaker, Artificial ; Syncope ; diagnosis

Objective To study the expression and regulation of polycystic ovary syndrome ( PCOS) susceptibility gene Hmga2 in endometrial receptivity and decidualization. Methods Experiments including early pregnancy, delayed implantation and activation, artificial decidualization and ovarian steroid hormone treatment were performed, and Q-PCR and Western blot analyses were applied to explain the role of Hmga2 in endometrial receptivity. Results The Hmga2 ex-pression increased gradually with pregnancy. Its expression at the implantation site was significantly higher than that at the inter-implantation site,in the embryo activation group than in delayed implantation group, and in the artificial decidualiza-tion than the non-decidualization. The expression of Hmga2 was positively correlated with the expression of estrogen and progesterone, and was positively regulated by estrogen and progesterone in vivo. Conclusions Our findings indicate that the expression of Hmga2 is closely related to the embryo implantation process in early pregnancy in mice, is involved in the process of endometrial decidualization, and is influenced by the activated blastocyst and steroid hormones.

OBJECTIVETo compare the short-term clinical outcome between unilateral fixation fusion (ULF) and minimally invasive spine transforaminal lumbar interbody fusion (MIS-TLIF) in treating lumbar disc herniation (LDH).

METHODSThe clinical data of 39 patients with LDH were retrospectively analyzed from June 2008 to March 2013. There was 22 males and 17 females, aged from 45 to 75 years old with an average of 56.9 years. Therer were 3 cases in L3,4, 15 cases in L4,5, 21 cases in L5S1. Among them, 21 patients underwent unilateral fixation fusion (ULF group) and 18 underwent minimally invasive spine transforaminal lumbar interbody fusion (MIS-TLIF group). Operation time, blood loss, the times of radiographic exposure and hospital stay were noted and compared between two groups. Radiograph informations were regularily accessed and VAS, ODI scores were recorded at 3 days and 3, 6, 12 months after operation, respectively. According to modified Macnab criteria, the clinical effects were evaluated at final follow-up.

RESULTSAll operations were successful without severe complications. The averaged operative time and the times of radiographic exposure in ULF group [(95 ± 25) min and (4.2 ± 0.4) times] were less than that of MIS-TLIF group [(120 ± 35) min and (10.1 ± 3.9) times] (P < 0.05). But, the mean blood loss and hospital stay in MIS-TLIF group [(75 ± 45) ml and (7.2 ± 2.2)d ]were less than that of ULF group [(165 ± 60) ml and (11.0 ± 3.7) d] (P < 0.01). All patients were followed up from 12 to 45 months with an average of 29.5 months. The VAS and ODI score had significantly improved during the follow-up and no significant differences were found between two groups at the same time point (P > 0.05). The postoperative radiographs showed internal fixation position was good. And all patients obtained bone fusion by CT scan at 1 year after operation. There was no significant differences in modified Macnab criteria between two groups at the latest follow-up (P > 0.05).

CONCLUSIONFavorable short-term clinical effects can be achieved in suitable LDH patients with ULF or MIS-TLIF surgical procedures.

Aged ; Humans ; Intervertebral Disc Displacement ; surgery ; Lumbar Vertebrae ; surgery ; Middle Aged ; Minimally Invasive Surgical Procedures ; methods ; Spinal Fusion ; methods

OBJECTIVETo study the effect of vacuum-assisted closure (V.A.C) on the expression of Urokinase-type plasminogen activator (uPA) and Urokinase-type plasminogen activator receptor(uPAR) protein in margin tissue of pigs with acute wounds and patients with chronic wounds.

METHODSAcute wounds were created on the two side of five male pigs' back, the experiment wounds on one side received V. A. C treatment and the control side received traditional treatment. Punch biopsies were taken from margin tissue of the wounds in 0, 1, 3, 6, 9, 12, 18, 25 days after the V.A.C treatment. The uPA and uPAR positive cells were stained with immunohistochemical technique . Six human chronic wounds were also treated with the V. A. C treatment, and the samples of extravasate from those wounds were collected in 0, 1, 3, 5, 7 days after the treatment, and the levels of uPA and uPAR expression were examined by enzyme-linked immunosorbent assay (ELISA).

RESULTSThe expression of uPA and uPAR protein in margin tissues of pigs with acute wounds increased and peaked in 3 days after the treatment with V. A. C, then it presented rapidly downtrend, but the expression and staining in the experiment group were obviously higher than that of the control group. In the six chronic wounds, the high level expression of uPA and uPAR protein was decreased after the treatment with V. A. C.

CONCLUSIONThe V. A. C may increase the expression of uPA and uPAR protein in acute wound keratinocytes and decrease the high expression of uPA and uPAR in chronic wounds.

Adult ; Animals ; Female ; Humans ; Male ; Middle Aged ; Negative-Pressure Wound Therapy ; Receptors, Urokinase Plasminogen Activator ; metabolism ; Swine ; Urokinase-Type Plasminogen Activator ; metabolism ; Wound Healing

Hydrogen sulfide ( H2S ) has been confirmed as a significant endogenous gaseous signaling molecule involved in various physiological processes.To monitor H2S in living cells, a F?rster resonance energy transfer ( FRET) ratiometric probe based on quantum dot-cresyl violet was developed.In this work, quantum dot nanospheres ( QDS) were firstly synthesiZed via a facile ultrasonication emulsion strategy, and the mixture chloroform solution containing hydrophobic quantum dots and COOH-functionaliZed amphiphilic polymer were successfully transferred into the oil-in-water micelle.The negatively charged quantum dot nanospheres with quantum dots embedded in the polymer matrixes were successfully fabricated after the evaporation of chloroform.And then, these quantum dot nanospheres were condensed with positively charged cresyl violet-aZide ( CV-N3 ) via electrostatic interaction to obtain the QDS-N3 complexes.The as-prepared QDS-N3 complexes were monodispersed nanospheres with an average diameter of about 120 nm.These complexes were taken up by the cell through endocytosis, and they were still stable even in wide pH range.In addition, the QDS-N3 complexes exhibited no cellular toxicity which was verified by MTT assay.In this ratiometric probe, CV-N3 as a FRET acceptor was conjugated to quantum dot nanospheres.The quantum dots emitted at 591 nm and served as the FRET donor;once the aryl aZide on the CV-N3 was reduced to aniline by H2S, the probe emitted at 620 nm.The ratiometric probe allowed the elimination of interference of excitation intensity, intracellular environment and other factors.Furthermore, this method also offered a general protocol for preparing nanosensors for monitoring various small molecular in living cells.

AIM:To observe the effect of Yiqi Huayu Huatan decoction(YHHD)on unilaterral ureteral ob-struction(UUO)-induced renal interstitial fibrosis in rats, and to investigate the possible mechanism.METHODS: Fe-male SD rats(n=48)were randomly divided into sham group, model group, telmisartan group, and low-, middle-and high-dose YHHD groups,with 8 rats in each group.The UUO model rats was established by ligating left ureter.The rats in sham group and model group were treated with equal volume of normal saline, others were treated with the corresponding drugs daily.After 12 weeks,the rats were sacrificed.The serum samples were collected for determining the concentrations of cystatin C(Cys-C)and uric acid(UA).The morphological changes of the renal tissue were observed by PAS staining. The collagen fiber was observed by Masson staining.The mRNA expression of Krüppel-like factor 15(KLF15),high-mo-bility group box protein 1(HMGB1),nuclear factor-κB(NF-κB),IκB,monocyte chemotactic protein-1(MCP-1),inter-leukin-1β(IL-1β), tumor necrosis factor-α(TNF-α),fibronectin(FN),collagen type I(Col I)and Col-Ⅳwas detec-ted by real-time PCR.The protein expression of KLF15, HMGB1 and NF-κB was detected by Western blot.The protein expression of MCP-1 was determined by the method of immunohistochemistry.RESULTS:Compared with sham group,the deposition rate of collagen fibers and the concentration of Cys-C in model group were significantly increased(P<0.05), the mRNA and protein expression of KLF15 was significantly down-regulated(P<0.05), while the mRNA expression of HMGB1,NF-κB,IκB,MCP-1,IL-1β,TNF-α,FN,Col I and Col Ⅳand the protein expression of HMGB1,NF-κB and MCP-1 were significantly up-regulated(P<0.05).Compared with model group,the deposition rates of collagen fibers in middle-and high-dose YHHD groups and telmisartan group were significantly decreased(P<0.05),with down-regulated protein expression of HMGB1 and NF-κB and mRNA expression of IL-1βand TNF-α(P<0.05).The protein expression of KLF15 was significantly up-regulated in high-dose YHHD group and telmisartan group(P<0.05),while the protein ex-pression of MCP-1 and the mRNA expression of FN were significantly down-regulated(P<0.05).The mRNA expression of KLF15 was significantly up-regulated in high-dose YHHD group(P<0.05), while the mRNA expression of MCP-1, Col I and Col IV was significantly down-regulated(P<0.05).The mRNA expression of NF-κB and IκB was significantly down-regulated and the concentration of Cys-C was significantly decreased in each dose of YHHD groups and telmisartan group(P<0.05).No significant difference of UA level among the groups was observed.CONCLUSION:YHHD allevi-ates renal interstitial fibrosis in a dose-dependent manner, and YHHD at high dose shows the most obvious effect.The mechanism may be associated with the up-regulation of KLF15 and the down-regulation of HMGB1, NF-κB and its down-stream inflammation-related factors in the renal tissue.