五味子乙素诱导的HSP27和HSP70对小鼠肝损伤的保护作用

目的 观察五味子乙素(Sch B)诱导的HSP27和HSP70对小鼠肝损伤的保护作用.方法 采用扑热息痛(APAP)小鼠肝损伤模型,Sch B和槲皮素给药后检测血清转氨酶水平,Western blot法检测小鼠肝脏HSP27和HSP70的表达.结果 Sch B在APAP模型小鼠显著诱导HSP27和HSP70的表达及降低小鼠血清转氨酶水平,槲皮素可抑制上述作用.结论 Sch B可通过诱导小鼠肝脏HSP27和HSP70的表达而发挥保肝作用.     

五味子乙素对小鼠肝脏HSP27和HSP70的诱导作用

目的 观察五味子乙素对正常小鼠肝脏HSP27和HSP70的诱导作用.方法 将实验小鼠分为空白对照组、五味子乙素给药组及高温处理组,采用Western blot法检测小鼠肝脏HSP27和HSP70的表达.结果 五味子乙素200mg/kg、100mg/kg、50mg/kg组小鼠肝脏的HSP27和HSP70表达均明显升高,但远远小于热休克反应对其表达的诱导.结论 五味子乙素能诱导小鼠肝脏HSP27和HSP70的表达.     

加味四逆汤对Con A肝损伤小鼠细胞凋亡的保护作用

目的探讨加味四逆汤对刀豆蛋白A（Con A）诱导肝细胞损伤过程中肝脏组织Fas抗原的表达和血清肿瘤坏死因子-α（TNF-α）水平的干预情况。方法雌雄各半的NIH小鼠随机分成5组：正常对照组、模型组、阳性药物组、加味四逆汤大、小剂量组,采用Con A（18mg·kg-1）尾静脉注射制作急性免疫性肝损伤模型。造模给药结束后,观察血清中TNF-α含量变化及肝组织细胞Fas抗原表达。结果模型组小鼠肝脏细胞内有大量的Fas抗原表达,且血清中TNF-α含量也明显升高,与对照组比较差异具有统计学意义（P<0.05）;对照组和药物组血清中TNF-α水平变化不大,肝细胞Fas抗原表达不明显。结论加味四逆汤能够干预Con A小鼠肝脏组织Fas抗原和血清TNF-α水平的表达,对急性肝损伤有较好的保护作用。     

弓形虫热休克蛋白70诱导建立弓形虫感染小鼠急性肝损伤模型研究

[目的]通过给弓形虫感染小鼠腹腔注射给予弓形虫热休克蛋白70(T.g.HSP70)建立急性肝损伤模型,观察T.g.HSP70诱导弓形虫感染小鼠急性肝损伤的作用机制.[方法]将20只KM雌性小鼠随机分为正常对照组、感染组、T.g.HSP70组及模型组(感染+T.g.HSP70).于弓形虫感染第7d,腹腔注射给予小鼠T.g.HSP70.次日处死小鼠,取血液,分离血清,取肝脏组织.测定血清中谷丙转氨酶(ALT)、谷草转氨酶(AST)水平,测定肝组织中超氧化物歧化酶(SOD)活性及丙二醛(MDA)含量.[结果]模型组小鼠ALT,AST,MDA水平较其他组明显升高(P<0.01),SOD水平明显降低(P<0.05).[结论]T.g.HSP70可诱导弓形虫感染小鼠急性肝损伤,其机制可能与T.g.HSP70加重弓形虫感染小鼠肝组织的脂质过氧化有关.     

HSP70在对乙酰氨基酚诱导的小鼠急性肝损伤组织中的表达

目的研究(热体克蛋白70)HSP70在对乙酰氨基酚诱导的小鼠急性肝损伤中的动态变化,进一步阐明HSP70在药物性肝损伤中的重要作用。方法健康雄性小鼠40只,分别腹腔注射对乙酰氨基酚溶液(用生理盐水稀释,550 mg/kg),在注射对乙酰氨基酚后62,44,2,54 h分别眼球取血,分离血清检测AST和ALT活性,同时取小鼠肝脏制备10%肝匀浆,每个时间点10只小鼠。同时取10只正常小鼠的血清和肝脏作为对照进行研究。利用蛋白印迹方法检测小鼠急性肝损伤过程中HSP70的表达变化。结果小鼠注射对乙酰氨基酚后,血清中AST和ALT活性随着时间的延长,酶活性逐渐升高,24 h达到高峰,54 h逐渐恢复到正常水平。HSP70在注射对乙酰氨基酚后6 h,其表达量略有增高,在24 h表达量达到高峰,说明小鼠肝脏的应激反应达到了高峰,此后HSP70的表达量逐渐恢复到正常水平。结论 HSP70在对乙酰氨基酚诱导的小鼠急性肝损伤过程中表达出现显著变化,可能在肝损伤的修复和再生过程中起到重要的作用。     

白介素22融合蛋白对刀豆蛋白A诱导肝损伤病理状态下肝切除后肝再生的影响

目的 研究白介素22融合蛋白(IL-22-FP)对刀豆蛋白A(ConA)诱导急性肝损伤后行70%肝切除手术(PHx)的小鼠术后肝再生及肝脏保护的作用.方法 建立小鼠ConA肝损伤和PHx手术模型,术后32 h通过过量麻醉法处死小鼠.5-溴脱氧尿嘧啶核苷染色,观察小鼠肝脏再生情况;全自动生化分析仪检测小鼠血清谷丙转氨酶(ALT)和谷草转氨酶(AST)水平;HE染色观察小鼠肝脏组织损伤情况;Western blot法检测小鼠肝组织中增值细胞核抗原(PCNA)、细胞周期蛋白D1(CycliD1)、信号转导子及转录激活子3(STAT3)及p-STAT3蛋白的表达情况.结果 ConA+PHx+IL-22-FP组小鼠同ConA+PHx+rh-IL-22组及其他组小鼠相比,表现出更多的肝细胞增殖和更高的肝指数(肝脏重量/体重);HE染色显示ConA+PHx+IL-22-FP组小鼠肝脏坏死及炎症细胞浸润程度较低;生化检测显示ConA+PHx+IL-22-FP组血清ALT和AST水平明显低于其他组;Western blot结果表明ConA+PHx+IL-22-FP组小鼠的肝脏组织PCNA、CyclinD1和p-STAT3蛋白的表达量也明显高于其他组.结论 IL-22-FP能够促进由ConA诱导肝损伤的小鼠PHx后的肝再生,并表现出显著的肝脏保护作用.     

芹菜素对刀豆蛋白A诱导的免疫性肝损伤小鼠的保护作用

目的 研究芹菜素(AP)对免疫性肝损伤小鼠的保护作用.方法 通过尾静脉注射20 mg/kg刀豆蛋白A(Con A) 诱发免疫性肝损伤小鼠模型,连续6天给予小鼠75、150和300 mg/kg AP灌胃,用石蜡切片-HE染色检测肝脏病理变化,速率法检测谷丙转氨酶(ALT) 的活性.结果 与模型组比较,75～300 mg/kg AP 均能抑制Con A 诱发的肝门静脉炎症细胞侵润和血清ALT 活性的升高,具有浓度依赖性.结论 AP 对Con A 诱发的小鼠免疫性肝损伤具有较好的保护作用.     

双歧杆菌脂磷壁酸对刀豆蛋白A诱导小鼠免疫性肝损伤的保护作用

目的 研究双歧杆菌脂磷壁酸(LTA)对ConA诱导的小鼠免疫性肝损伤的保护作用,探讨其在该疾病预防和治疗中的应用可行性.方法 小鼠随机分为正常组、模型组、联苯双酯组(150 mg/kg)和LTA处理组(100、200和400μg/kg),尾静脉注射Con A复制小鼠免疫性肝损伤模型；观察各组小鼠的一般情况及肝、脾指数,生化法和酶联免疫法测定血清ALT、AST和TNF-α的含量；RT-PCR检测小鼠肝组织内NF-кB的基因表达.结果 LTA处理组小鼠的一般情况和肝脏指数均好于模型组,其血清内ALT、AST和TNF-α的水平显著低于模型组(P＜0.05),但与联苯双酯组基本相当(P＞0.05)；不同浓度LAT处理组小鼠肝细胞NF-кB的mRNA水平均低于模型组(P＜0.05),且LTA 400μg/kg组与联苯双酯组基本相当(P＞0.05).结论 双歧杆菌脂磷壁酸的双向免疫调节作用可以有效保护Con A诱导的小鼠免疫性肝损伤.     

可溶性mB7-H4对ConA诱导小鼠肝损伤的保护作用

目的: 探讨可溶性mB7-H4蛋白对肝脏的免疫性损伤的保护作用,阐明其作用机制。 方法: 采用异丙基硫代半乳糖苷(IPTG)诱导pET/mB7-H4表达,通过纯化、复性以及去除内毒素,获得具有生物活性的可溶性mB7-H4蛋白。小鼠随机分为对照(生理盐水)组、Con A组和mB7-H4蛋白100、200及400 μg组,除对照组外其余各组小鼠通过尾静脉注射Con A建立肝损伤模型(mB7-H4蛋白组小鼠在注射Con A前2 h和注射后8 h分2次给予mB7-H4蛋白),并于注射Con A后24和48 h,摘取各组小鼠眼球取血及引颈处死取肝脏,分离血清,检测天冬氨酸氨基转移酶(ALT)、丙氨酸氨基转移酶(AST)、白细胞介素4(IL-4)和γ干扰素(IFN-γ)水平,并检测肝脏组织病理学变化。 结果: 与对照组比较,其他各组小鼠血清ALT、AST、IL-4和IFN-γ水平较均明显升高(P<0.05);与Con A组比较,mB7-H4蛋白组小鼠血清ALT、AST、IL-4和IFN-γ水平均明显降低(P<0.05或 P<0.01)。HE染色,mB7-H4蛋白组小鼠肝脏损伤均较Con A组有不同程度的减轻。 结论: 可溶性mB7-H4蛋白对Con A诱导的肝脏免疫性损伤具有保护作用,可能是通过抑制IL-4和IFN-γ的产生和(或)分泌而发挥作用。     

重组鲨肝刺激物质类似物对刀豆蛋白A致小鼠急性肝损伤的保护作用

为探讨重组鲨肝刺激物质类似物(r-sHSA)对刀豆蛋白A（Con A）致小鼠急性肝损伤的保护作用及其作用机制,利用尾静脉注射Con A制备小鼠急性肝损伤动物模型,以谷丙转氨酶（ALT）和谷草转氨酶（AST）活性以及组织病理变化为指标判断r-sHSA(30,60,120 μg/kg)对免疫性肝损伤的保护作用;同时,检测肝组织丙二醛、谷胱甘肽水平和总抗氧化能力以及血清中TNF-α和IFN-γ的含量,并测定肝组织匀浆中iNOS活力。结果表明,3个给药剂量的r-sHSA均可显著降低肝损伤小鼠血清转氨酶活性,明显减轻肝细胞坏死,减少炎细胞浸润,改善肝脏氧化应激水平,并下调炎症因子表达。结果提示,r-sHSA对Con A致小鼠急性肝损伤具有明显的保护作用,其机制可能与抗氧化和抗炎作用有关。     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

Luo Lingjie's Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.     

Dr.Zhang Ren's Experience in the Acupuncture Treatment of Different Diseases with the Same Therapeutic Principle

Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.