学科分类
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24 个结果
  • 简介:AIMToassessdietarymyo-inositolinreducingstemcellactivationincolitis,andvalidatepβ-cateninS552asabiomarkerofrecurrentdysplasia.METHODSWeexaminedtheeffectsofdietarymyo-inositoltreatmentoninflammation,pβ-cateninS552andpAktlevelsbyhistologyandwesternblotinIL-10-/-anddextransodiumsulfate-treatedcoliticmice.Additionally,weassessednuclearpβ-cateninS552inpatientstreatedwithmyo-inositolinaclinicaltrial,andinpatientswithandwithoutahistoryofcolitis-induceddysplasia.RESULTSInmice,pβ-cateninS552stainingfaithfullyreportedtheeffectsofmyo-inositolinreducinginflammationandintestinalstemcellactivation.Inapilotclinicaltrialofmyo-inositoladministrationinpatientswithahistoryoflowgradedysplasia(LGD),twopatientshadreducednumbersofintestinalstemcellactivationcomparedtotheplacebocontrolpatient.Inhumans,pβ-cateninS552stainingdiscriminatedulcerativecolitispatientswithahistoryofLGDfromthosewithbenigndisease.CONCLUSIONEnumeratingcryptswithincreasednumbersofpβ-cateninS552-positivecellscanbeutilizedasabiomarkerincolitis-associatedcancerchemopreventiontrials.

  • 标签: CHEMOPREVENTION 发育异常 BIOMARKER 干细胞 联系大肠炎的癌症
  • 简介:Studieshaveshownthattherearestronginteractionsbetweengustatoryandvisceralsensationsinthecentralnervoussystemwhenratsingestsweetfoodsorsolutions.Toinvestigatetheroleofthesubdiaphragmaticvagiintransmittinggeneralvisceralinformationduringtheprocessofdrinkingsweet-tastingsolutions,weexaminedtheeffectsofsubdiaphragmaticvagotomyontheintakeof0.5mol/Lsucrose,0.005mol/Lsaccharinordistilledwateroverthecourseof1hourinratsdeprivedofwater.Resultsshowednosignificantdifferenceinconsumptionofthesethreesolutionsinvagotomizedrats.However,ratsinthesham-surgerygroupdrankmoresaccharinsolutionthansucrosesolutionordistilledwater.Moreover,theintakeofdistilledwaterwassimilarbetweenvagotomizedratsandsham-surgerygrouprats,butsignificantlylesssucroseandsaccharinwereconsumedbyvagotomizedratscomparedwithratsinthesham-surgerygroup.Thesefindingsindicatethatsubdiaphragmaticvagotomyreducesintakeofsweet-tastingsolutioninrats,andsuggestthatvagalandextravagalinputsplayabalancedroleinthecontroloftheintakeofsweet-tastingsolutions.Theyalsosuggestthatsubdiaphragmaticvagotomyeliminatesthedifferenceinhedonicperceptioninducedbysweet-tastingsolutionscomparedwithdistilledwater.

  • 标签: 迷走神经 摄入量 大鼠 甜味 蔗糖溶液 中枢神经系统
  • 简介:AIM:Toinvestigatetheeffectandmechanismofstimulationofthehypothalamicparaventricularnucleuswithglutamateacidinratswithulcerativecolitis(UC).METHODS:Theratswereanesthetizedwith10%chloralhydrateviaabdominalinjectionandtreatedwithanequalvolumeofTNBS+50%ethanolenema,injectedintotheuppersectionoftheanuswiththetailfacingup.Colonicdamagescoreswerecalculatedafterinjectingacertaindoseofglutamicacidintotheparaventricularnucleus(pVN),andtheeffectofthenucleustractussolitarius(NTS)andvagusnerveinalleviatingUCinjurythroughchemicalstimulationofthepVNwasobservedinrats.ExpressionchangesofC-myc,Apaf-1,caspase-3,interleukin(IL)-6,andIL-17duringtheprotectionagainstUCinjurythroughchemicalstimulationofthepVNinratsweredetectedbyWesternblot.Malondialdehyde(MDA)contentandsuperoxidedismutase(SOD)activityincolontissuesofratsweremeasuredbycolorimetricmethods.RESULTS:ChemicalstimulationofthePVNsignificantlyreducedUCinratsinadose-dependentmanner.TheprotectiveeffectsofthechemicalstimulationofthepVNonratswithUCwereeliminatedafterchemicaldamagetothepVN.AfterglutamatereceptorantagonistkynurenicacidwasinjectedintothepVN,theprotectiveeffectsofthechemicalstimulationofthepVNwereeliminatedinratswithUC.AfterAVpVlreceptorantagonist([Deamino-penl,val4,D-Arg8]-vasopressin)wasinjectedintoNTSorbilateralchemicaldamagetoNTS,theprotectiveeffectofthechemicalstimulationofpVNonUCwasalsoeliminated.AfterchemicalstimulationofthepVN,SODactivityincreased,MDAcontentdecreased,C-mycproteinexpressionsignificantlyincreased,caspase-3andApaf-1proteinexpressionsignificantlydecreased,andIL-6andIL-17expressiondecreasedincolontissuesinratswithUC.CONCLUSION:ChemicalstimulationofthehypothalamicpVNprovidesaprotectiveeffectagainstUCinjuryinrats.HypothalamicpVN,NTSandvagusnerveplayk

  • 标签: PARAVENTRICULAR NUCLEUS NUCLEUS tractus solitarius ULCERATIVE
  • 简介:AbstractPurpose:Impending compartment syndrome is a common event following closed tibia fractures, which can progress to sinister compartment syndrome. Fasciotomy is the only definitive treatment available, though it has its own drawbacks and complications. Medical management at present consists of limb elevation and adequate hydration. This study aims at determining whether intravenous administration of Mannitol reduced the intracompartmental pressure in patients with closed tibial fractures.Methods:This is a double blinded, randomized control trial done in a single tertiary care center in India. Forty-five patients were recruited between February 2012 and October 2012. Forty patients who presented to the emergency department with isolated, closed, high velocity, and proximal 2/3 tibia fractures were included in this study. Patients with contraindication to Mannitol were excluded. They were allocated into 2 groups by the investigator using computer generated randomization. The pressure in the anterior compartment of the leg was measured with a handheld Stryker pressure monitor. Then either 20% Mannitol or 0.9% normal saline as given intravenously in a blinded manner, based on the randomization. The intracompartmental pressure was measured at 0, 1 and 3 h after the infusion. The participant, investigator and statistician were masked to the group assessment.Results:There was no difference in intracompartmental pressures at 1 or 3 h, between the groups. However, in patients with the baseline of compartmental pressures ≥30 mmHg, Mannitol showed a marked reduction in pressure of 8.5 mmHg at 1 h compared to almost no change in pressure in the saline group. There were no adverse events with the use of Mannitol.Conclusions:This preliminary study appears to show that Mannitol is useful in the management of the increased compartment pressure. The limitations of this study were that it only involved a small group of patients and the baseline pressures in both the groups were not comparable. More studies are required before the use of Mannitol as a standard of care in the management of compartment syndrome can be established.

  • 标签: Mannitol Compartment pressures Acute tibial fractures
  • 简介:Hybridoma房间在抗体生产率追随者暴露显示增加到张力亢进的条件。然而,内在的机制很好没被理解。在现在的学习,我们假设激活的T房间的原子因素5(NFAT5)/tonicityenhancer绑定蛋白质(TonEBP)工作增加hybridomacells的抗体生产率。NFAT5是osmosensitive哺乳动物的抄写因素。然而,它在没在张力亢进的周围被洗的各种各样的器官的无所不在的表示建议NFAT5可以也在等渗的条件下面调整细胞生长和功能。在这研究,我们由西方的污点分析在hybridoma房间检验了表示ofNFAT5,并且发现它在张力亢进的媒介显著地增加了。为了推进,在hybridoma房间定义NFAT5的功能,RNA干扰技术习惯于down在SGB-8房间(一根hybridoma房间线)调整NFAT5的表示。在等渗的媒介,hybridoma房间的抗体生产率被NFAT5while的down规定减少细胞增殖没被影响。这里介绍的结果表明那NFAT5不仅在hybridoma房间在渗透的压力反应小径起一个重要作用而且为最佳的抗体生产率是必要的。

  • 标签: 杂交瘤细胞 单克隆抗体产率 RNA干扰 NFAT5转录因子 减量调节
  • 简介:Thisstudyinvestigatedtheeffectofcatheter-basedrenalsympatheticdenervation(RD)onleftventricularhypertrophy(LVH)andsystolicanddiastolicfunctioninpatientswithresistanthypertension.LVHanddiastolicdysfunctionareassociatedwithelevatedsympatheticactivityandincreasedmorbidityandmortality.TheeffectofRDonLVHandLVfunctionisunclear.MethodsandResultsForty-sixpatientsunderwentbilateralRD,and18patientsservedascontrols.Transthoracicechocardiographywasperformedatbaseline,andafter1monthand6months.Besidesreductionofsystolicanddiastolicbloodpressure(-22.5/-7.2mmHgat1monthand-27.8/-8.8mmHgat6months,P<0.001ateachtimepoint),RDsignificantlyreducedmeaninterventricularseptumthicknessfrom14.1±1.9mmto13.4±2.1mmand12.5±1.4mm(P=0.007),andLVmassindexfrom53.9±15.6g/m(2.7)(112.4±33.9g/m(2))to47.0±14.2g/m(2.7)(103.6±30.5g/m(2))and44.7±14.9g/m(2.7)(94.9±29.8g/m(2))(P<0.001)at1monthand6months,respectively.ThemitralvalvelateralE/E'decreasedafterRDfrom9.9±4.0to7.9±2.2at1monthand7.4±2.7at6months(P<0.001),indicatingreductionofLVfillingpressures.Isovolumicrelaxationtimeshortened(baseline109.1±21.7msvs.85.6±24.4msat6months,P=0.006),whereasejectionfractionsignificantlyincreasedafterRD(baseline:63.1±8.1%vs.70.1±11.5%at6months,P<0.001).Nosignificantchangeswereobtainedincontrolpatients.ConslusionsBesidestheknowneffectonbloodpressure,ourstudyshowedforthefirsttimethatRDsignificantlyreducesLVmassandimprovesdiastolicfunction,whichmighthaveimportantprognosticimplicationsinpatientswithresistanthypertensionathighcardiovascularrisk.

  • 标签: 肾交感神经 高血压患者 左心室 顽固性 肥厚 心功能
  • 简介:Freeradicalsinducedbytraumaticbraininjuryhavedeleteriouseffectsonthefunctionandantioxidantvitaminlevelsofseveralorgansystemsincludingthebrain.Melatoninpossessesantioxidanteffectonthebrainbymaintainingantioxidantenzymeandvitaminlevels.Weinvestigatedtheeffectsofmelatoninonantioxidantabilityinthecerebralcortexandbloodoftraumaticbraininjuryrats.Resultsshowedthatthecerebralcortexβ-carotene,vitaminC,vitaminE,reducedglutathione,anderythrocytereducedglutathionelevels,andplasmavitaminClevelweredecreasedbytraumaticbraininjurywhereastheywereincreasedfollowingmelatonintreatment.Inconclusion,melatoninseemstohaveprotectiveeffectsontraumaticbraininjury-inducedcerebralcortexandbloodtoxicitybyinhibitingfreeradicalformationandsupportingantioxidantvitaminredoxsystem.

  • 标签: 创伤性脑损伤 大脑皮层 褪黑激素 氧化应激 大鼠 还原型谷胱甘肽
  • 简介:AbstractBackground:Psoriasis is a common chronic inflammatory skin disease with 2% to 3% prevalence worldwide and a heavy social-psychological burden for patients and their families. As the exact pathogenesis of psoriasis is still unknown, the current treatment is far from satisfactory. Thus, there is an urgent need to find a more effective therapy for this disease. Keratin 17 (K17), a type I intermediate filament, is overexpressed in the psoriatic epidermis and plays a critical pathogenic role by stimulating T cells in psoriasis. Therefore, we hypothesized that inhibiting K17 may be a potential therapeutic approach for psoriasis. This study aimed to investigate the therapeutic effect of K17-specific small interfering RNA (siRNA) on mice with imiquimod (IMQ)-induced psoriasis-like dermatitis.Methods:Eight-week-old female BALB/c mice were administered a 5% IMQ cream on both ears to produce psoriatic dermatitis. On day 3, K17 siRNA was mixed with an emulsion matrix and applied topically to the left ears of the mice after IMQ application every day for 7 days. The right ears of the mice were treated in parallel with negative control (NC) siRNA. Inflammation was evaluated by gross ear thickness, histopathology, the infiltration of inflammatory cells (CD3+ T cells and neutrophils) using immunofluorescence, and the expression of cytokine production using real-time quantitative polymerase chain reaction. The obtained data were statistically evaluated by unpaired t-tests and a one-way analysis of variance.Results:The severity of IMQ-induced dermatitis on K17 siRNA-treated mice ears was significantly lower than that on NC siRNA-treated mice ears, as evidenced by the alleviated ear inflammation phenotype, including decreased ear thickness, infiltration of inflammatory cells (CD3+ T cells and neutrophils), and inflammatory cytokine/chemokine expression levels (interleukin 17 [IL-17], IL-22, IL-23, C-X-C motif chemokine ligand 1, and C-C motif chemokine ligand 20) (P < 0.05 vs. the Blank or NC siRNA groups). Compared to the NC siRNA treatment, the K17 siRNA treatment resulted in increased K1 and K10 expression, which are characteristic of keratinocyte differentiation (vs. NC siRNA, K17 siRNA1 group: K1, t= 4.782, P= 0.0050; K10, t= 3.365, P= 0.0120; K17 siRNA2 group: K1, t= 4.104, P= 0.0093; K10, t= 4.168, P= 0.0042; siRNA Mix group: K1, t= 3.065, P = 0.0221; K10, t = 10.83, P < 0.0001), and decreased K16 expression, which is characteristic of keratinocyte proliferation (vs. NC siRNA, K17 siRNA1 group: t= 4.156, P= 0.0043; K17 siRNA2 group: t= 2.834, P= 0.0253; siRNA Mix group: t= 2.734, P = 0.0250).Conclusions:Inhibition of K17 expression by its specific siRNA significantly alleviated inflammation in mice with IMQ-induced psoriasis-like dermatitis. Thus, gene therapy targeting K17 may be a potential treatment approach for psoriasis.

  • 标签: Psoriasis Keratin 17 Small interfering RNA Imiquimod Inflammation
  • 简介:AbstractObjectives:Timing of drain removal and its effects on complications after major pancreatectomy remain controversial. We designed this study to assess whether early drain removal after major pancreatectomy influences the incidence of complications in the patients with low risk of postoperative pancreatic fistula (POPF).Methods:This is a single-center randomized controlled trial (RCT). A total of 144 patients undergoing pancreaticoduodenectomy (PD) and distal pancreatectomy (DP) who met the criteria, including drain amylase on postoperative day (POD) 1 and 3 less than 5000 U/L and drain output within POD 3 less than 300 mL/d, were randomly assigned to early drain removal (POD 3) or standard drain removal (≥POD 5). The primary outcome was major complications (Clavien-Dindo grades 2-4), and the secondary outcome was POPF, reintervention treatment, readmission, and total medical expense within 3 months after surgery.Results:A total of 5 patients in early drain removal group had at least 1 major complications (grades 2-4), compared to 15 patients in standard drain removal group (P=.028). The incidence of grade B/C pancreatic fistula was not significantly different (2.8% vs 0%). Multivariate analysis demonstrated that early drain removal was an independent factor associated with a reduced risk of major complications (P=.039, odds ratio=0.314). Majority of major complications occurred in PD patients, and only very few cases occurred in DP patients. Stratified analysis showed that early drain removal significantly reduced the major complications only in the patients undergoing PD.Conclusion:This single-center RCT shows early drain removal on POD 3 is safe for both DP and PD patients, under our criteria. Early drain removal could reduce the incidence of major complications in patients undergoing PD.

  • 标签: Complications Distal pancreatectomy Drain removal Pancreaticoduodenectomy
  • 简介:Benignprostatichyperplasia(BPH)isanage-relateddiseaseofunknownetiology,characterizedbyprostaticenlargementcoincidentwithdistinctalterationsintissuehistology.Inthepresentstudy,weinvestigatedwhethertriptolidecanpreventtestosterone-inducedprostatichyperplasiainrats.Castrationwasperformedviathescrotalrouteafterurethaneaesthesia.BPHwasinducedinexperimentalgroupsbydailysubcutaneousinjectionsoftestosteronepropionate(TP)fortwoweeks.Triptolidewasadministereddailybyoralgavageatadoseof100and50μg×kg~(-1)for2weeks,alongwiththeTPinjections.Onday14,theanimalswerehumanelykilledbycervicaldislocationafteraesthesia.Prostateswereexcised,weighed,andusedforhistologicalstudies.Testosteroneanddihydrotestosterone(DHT)levelsinserumandprostateweremeasured.Theresultsshowedthattriptolidesignificantlyreducedtheprostateweight,andthetestosteroneandDHTlevelsinboththeserumandprostate.HistopathologicalexaminationalsoshowedthattriptolidetreatmentsuppressedTP-inducedprostatichyperplasia.Inconclusion,triptolideeffectivelyinhibitsthedevelopmentofBPHinducedbytestosteroneinaratmodel.

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  • 简介:瞄准:为了在ischemia-reperfusion(红外)上调查rosuvastatin的保护的效果,并且在内皮的氮的氧化物synthase(eNOS)的表示上决定这个代理人的效果,在老鼠导致了小肠的损害和发炎蛋白质。方法:肠的损坏被为30min夹钳优异mes伤寒动脉和腹的箱子在男Sprague-Dawley老鼠导致,为60min由灌注列在后面。在生理盐水溶解的Rosuvastatinintraperitoneally被管理在局部缺血前的60min。肠的粘膜损害和发炎的严厉被几个生物化学的标记,以及由组织检查所见评估。eNOS的蛋白质层次被西方的污点决定。结果:当粘膜的索引损坏,管腔内血红素和蛋白质的层次显著地在假冒操作组与那些相比在红外组被增加。然而,这些增加被处理显著地以一种剂量依赖者方式与rosuvastatin禁止。rosuvastatin的保护的效果被组织检查所见也证实。到红外的小肠的暴露导致了thiobarbituric的重要增加描绘的粘膜发炎酸反应的物质,联系织物的myeloperoxidase活动,和老鼠的粘膜内容导致cytokine的嗜中性的chemoattractant-1(CINC-1)和肿瘤坏死factor-alpha(TNF-alpha)。在红外以后的煽动性的参数的这些增加被预告的处理显著地在10mg/kg的剂量与rosuvastatin禁止。而且,CINC-1和TNF-alpha的mRNA表示在红外以后被增加,并且这增加被rosuvastatin也禁止。eNOS的粘膜蛋白质层次在红外期间减少了,但是在与rosuvastatin对待的老鼠被保存。结论:Rosuvastatin禁止老鼠红外导致的肠的损害和发炎,和它的保护与eNOS的保藏被联系蛋白质。

  • 标签: 肠疾病 缺血再灌注损伤 内皮氧化酶 蛋白基因
  • 简介:AbstractBackground:Central nervous system (CNS) symptoms after efavirenz (EFV) treatment in people living with human immunodeficiency virus (HIV) could persist and impact their quality of life. We assessed the impact of EFV-based regimen replacement with elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide (E/C/F/TAF), which is considered an alternative option for subjects who do not tolerate EFV. Most specifically, we assessed the safety and the efficacy of E/C/F/TAF and its effects on the participants’ neuropsychiatric toxicity symptoms in a real-life setting.Methods:A prospective cohort study was conducted among virologic suppressed HIV-positive participants receiving EFV-based regimens with ongoing CNS toxicity ≥ grade 2. The participants were switched to single-pill combination regimens E/C/F/TAF and followed up for 48 weeks. The neuropsychiatric toxicity symptoms were measured using a CNS side effects questionnaire, as well as the Hospital Anxiety and Depression Scale and the Pittsburgh Sleep Quality Index. The primary outcome measure was the proportion of participants experiencing grade 2 or higher CNS toxicity after EFV switch off at weeks 12, 24, and 48. Secondary endpoints included virologic and immunological responses and the effect on fasting lipids at week 48 after switch.Results:One hundred ninety-six participants (96.9% men, median age: 37.5 years, median: 3.7 years on prior EFV-containing regimens) were included in the study. Significant improvements in anxiety and sleep disturbance symptoms were observed at 12, 24, and 48 weeks after switching to E/C/F/TAF (P < 0.05). No significant change in depression symptom scores was observed. At 48 weeks after switch, HIV viral load <50 copies/mL was maintained in all of the participants, median fasting lipid levels were moderately increased (total cholesterol [TC]: 8.2 mg/dL, low-density lipoprotein cholesterol [LDL-C]: 8.5 mg/dL, high-density lipoprotein cholesterol [HDL-C]: 2.9 mg/dL, and triglyceride (TG): 1.6 mg/dL, and the TC:HDL-C ratio remained stable.Conclusions:The single-pill combination regimens E/C/F/TAF is safe and well tolerated. This study reveals that switching from EFV to E/C/F/TAF significantly reduces neuropsychiatric toxicity symptoms in people living with HIV with grade 2 or higher CNS complaints.

  • 标签: HIV Efavirenz Elvitegravir Tenofovir alafenamide Central nervous system
  • 简介:ObjectivesToexamineeffectofatorvastatinontheexpressionofCOX-2inperipheralbloodmonocytesfrompatientswithearlystageofacutemyocardialinfarction(AMI)invitro,andtheIL-6concentrationinsupernatantwasalsoexamined.MethodsPatientswithAMI(n=40)andwithstablecoronaryheartdisease(CHD)(n=18)wereregistered.Peripheralbloodmonocytesfromallparticipantswereisolatedandculturedfor24hrs,butthosefrompatientswithAMIwererandomlyexposedtovariousconcentrationofatorvastatin(0,0.1,1,10μmol/L)duringthecultivation.COX-2mRNAexpressioninmonocyteswasanalyzedbyreversetranscriptionpolymerasechainreaction(RT-PCR).ConcentrationofIL-6insupernatantwasmeasuredbyenzyme-linkedimmunosorbentassay(ELISA).ResultsCOX-2expressionandIL-6secretionbyperipheralbloodmonocytesfrompatientswithAMI(0.92±0.13,205±46pg/ml)werehigherthanthatfromcontrols(0.19±0.08,41±8pg/ml)(bothP<0.05),andCOX-2expressionwasdramaticallyreducedupto52%byatorvastatin(P<0.05),inaconcentration-dependentmannerrespectively.TheexpressionofCOX-2frompatientswithAMIwasobviouslycorrelatedwiththesecretionofIL-6(r=0.636,P<0.05).COX-2expressioninthemonocytesafterinterventionofatorvastatinwasalsopositivelycorrelatedwithIL-6secretionbythesecells(r=0.783,P<0.05).ConclusionsCOX-2involvesinflammatoryrespondinearly-stageofAMI.AtorvastatinmaydecreaseCOX-2expressioninperipheralbloodmonocytesfrompatientswithAMIandcyclooxygenase-dependentpathwaymightbecorrelatedwiththeanti-inflammationmechanismofstatin.

  • 标签: acute myocardial INFARCTION inflammation CYCLOOXYGENASE-2 INTERLEUKIN-6
  • 简介:BackgroundTotheeffectofpercutaneouscoronaryintervention(PCI)onplasmalevelofN-terminalpro-Btypenatriureticpeptide(NT-proBNP)inpatientswithcoronaryheartdisease(CHD)andnormalleftventricularfunction.MethodsOnehundredandfivepatientswithCHDandnormalventricularfunctionwereenrolled.BloodsamplesforassessmentofNT-proBNPandcTn-TwerecollectedbeforeandafterPCI.ResultsThemeanleftventricularejectionfractionwas60.3±5.3%.Afterrevascularization,theleveloflgNT-proBNPwassignificantlyreduced(2.40±0.44vs2.23±0.43,P<0.001).SubgroupanalysisshowedthattheleveloflgNT-proBNPwasconsistentlydecreasedindifferentclinicalclassifications(stableangina45,unstableangina31andacutemyocardialinfarction29)andtarget-vesselrevascularization(leftanteriordescendingartery30,leftcircumflexartery26andrightcoronaryartery49),andin99patientswithoutelevationofpost-proceduralcTnT,butitshowedatrendofnon-significantincreasein6patientswithelevatedcTn-T.ConclusionsOurstudydemonstratesthatsuccessfulPCIreducesplasmaNT-proBNPconcentrationinpatientswithCHDandnormalventricularfunction.ThisimplicatesthattheimpactofPCIshouldbeconsideredintheinterpretationofNT-proBNPchangeinclinicalpractice,andfurtherstudiesarenecessarytoinvestigatethedirectand/orindirecteffectofmyocardialischemiaonBNP/NT-proBNP.

  • 标签: 冠状动脉 心室功能 心脏疾病 介入治疗 P浓度 患者
  • 简介:Previousstudiessuggestthatreductionanddysfunctionofcirculatingendothelialprogenitorcells(EPCs),anddysregulationinstromalcellderivedfactor-1/CXC-chemokinereceptor4(SDF-1/CXCR4)axisindiabetescouldbetherapeutictargetsfordiabeticischemicstroke.ThisstudyinvestigatedtheefficacyofCXCR4-primingEPCsoncerebralrepairfollowingischemicstrokeindb/dbdiabeticmice.BonemarrowderivedEPCsfromdb/+controlmiceweretransfectedwithadenovirus(1×10~7IU)carryingCXCR4(Ad-CXCR4-EPCs)ornull(Ad-null-EPCs).Thedb/dbmiceweredividedintothreegroupsforEPCsinjection(2×10~5cells/100μl):Ad-CXCR4-EPCs,Ad-null-EPCsorsaline(vehicle),viatailvein2hrsaftermiddlecerebralarteryocclusion(MCAO)surgery.Cerebralbloodflow(CBF)wasmeasuredwithlaserDopplerflowmeter.Miceweresacrificedat2or7daysthereafter.LevelofcirculatingEPCswasmeasuredbyflowcytometry.Ischemicdamage,cerebralmicrovasculardensity(MVD),angiogenesisandneurogenesisweredeterminedbyhistologicalstainingwithFluoro-J,CD31,CD31+BrdU,NeuN+BrdU,GFAP+BrdU,respectively.Results(table)showed:1)LevelsofCXCR4expressionwerereducedinthebrainandEPCsofdb/dbmiceasmeasuredbyreal-timeRT-PCRandwesternblotanalyses(datanotshown);2)ThelevelofcirculatingEPCswasmoreinthemicetreatedwithAd-CXCR4-EPCs;3)EPCtransfusionimprovedCBF,increasedMVD,angiogenesisandneurogenesisinperi-infarctarea,anddecreasedischemicdamage.TheefficacieswerebetterinAd-CXCR4-EPCsgroup.DatasuggestthattransfusionofAd-CXCR4-EPCscouldbeatherapeuticavenueforischemiastrokeindiabetes.

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  • 简介:尖锐吗啡管理被知道改变疱疹的功课单一的病毒感染。在这研究,潜伏的疱疹的复活上的尖锐吗啡管理的效果在一个老鼠模型被调查。因为cytolyticT淋巴细胞(CTL)的重要角色在疱疹的抑制的活动单一的病毒类型1(HSV-1)复活,CTL回答上的尖锐吗啡管理的效果也被评估。而且,淋巴细胞增长和IFN-生产在CTL反应的正式就职为他们的角色被评估。调查结果证明尖锐吗啡管理显著地减少了CTL回答,淋巴细胞增长,和IFN-生产。而且,尖锐吗啡管理被显示了重新激活潜伏的HSV-1。以前的研究证明了细胞的有免疫力的回答在HSV复活的抑制有重要角色。这些调查结果建议在尖锐吗啡管理以后的细胞的有免疫力的反应的部分的抑制可以组成导致HSV复活的机制的一部分。

  • 标签: 单纯疱疹病毒1型 细胞免疫功能 潜伏病毒 吗啡 急性 BALB
  • 简介:AbstractBackground:Coronavirus disease 2019 (Covid-19) remains a serious health threat worldwide. We aimed to investigate whether low molecular weight heparin (LMWH) can promote organ function recovery in moderate Covid-19 pneumonia patients.Methods:We initiated an LMWH protocol in Covid-19 patients with increased D-dimer, body mass index >30 kg/m2 or a history of diabetes from January 18, 2020 at Shanghai Public Health Clinical Center. In this retrospective study, we assigned moderate Covid-19 pneumonia patients admitted between January 18th and April 18, 2020 receiving the LMWH protocol to the LMWH group. Moderate patients who met the inclusion criteria but did not receive LMWH protocol were included in the control group by 1:2 propensity score matching. General clinical information, indicators for renal function, arterial blood gas analyses, arterial blood lactic acid content (mmol/L), and coagulation indexes at 0 day, 3 days, 7 days, and 11 days after admission were recorded and compared between the two groups.Results:There were 41 patients in the LMWH group and 82 patients in the control group. General information in both groups were similar. Compared to the control group, the arterial blood lactic acid content (mmol/L) at day 11 (1.3 [1.1, 1.7] vs. 1.2 [0.9, 1.3], P = 0.016) was reduced in the LMWH group. The estimated glomerular filtration rate (eGFR) in the LMWH group was higher than that in the control group at day 7 (108.54 [89.11, 128.17] vs. 116.85 [103.39, 133.47], P= 0.039) and day 11 (113.74 [94.49, 126.34] vs. 128.31 [112.75, 144.12], P = 0.003). The serum creatinine levels (Scr) in the LMWH group were lower than that in the control group at day 7 (62.13 [51.47, 77.64] vs. 55.49 [49.50, 65.75], P= 0.038) and day 11 (63.35 [50.17, 75.73] vs. 51.62 [44.62, 61.24], P = 0.005).Conclusions:LMWH treatment can reduce arterial blood lactic acid levels and improve eGFR in moderate Covid-19 pneumonia patients. Randomized controlled trials are warranted to further investigate this issue.Trial registration:ChiCTR.org.cn, ChiCTR2000034796.

  • 标签: Arterial blood lactic acid Covid-19 Kidney function LMWH