五味子乙素对脂多糖诱导的脓毒症急性肺损伤大鼠肺组织病理损伤、炎症反应和核因子-κB表达的影响

目的 观察五味子乙素对脂多糖（lipopolysaccharide,LPS）诱导的脓毒症急性肺损伤大鼠肺组织病理损伤、炎症反应和核因子 -κB （nuclear factor kappa-B,NF-κB）表达的影响。方法 采用气管滴注40 mg/kg LPS制备大鼠急性肺损伤大鼠模型,手术前1 h腹腔注射80 mg/kg 五味子乙素进行干预治疗,测定大鼠肺湿/干质量比,BCA试剂盒测定大鼠支气管肺泡灌洗液（bronchoalceolar lavage fluid,BALF）总蛋白,牛鲍氏计数板计算 BALF中白细胞数,苏木精-伊红染色观察大鼠肺组织损伤情况,ELISA法检测大鼠肺组织中肿瘤坏死因子-α（tumor necrosis factor-α,TNF-α）、白细胞介素-1β（interleukin-1β,IL-1β）、白细胞介素-6（interleukin-6,IL-6）含量,相关试剂盒检测大鼠肺组织中丙二醛（malondialdehyde,MDA）和超氧化物歧化酶（superoxide dismutase,SOD）含量,蛋白质印迹法检测大鼠肺组织中NF-κB p65、磷酸核因子- κB 抑制蛋白（phosphorylation inhibitor of nuclear factor kappa-B,pIκBα）和Toll样受体4（Toll-like receptor 4,TLR4）的表达水平。结果 与模型组相比,五味子乙素组大鼠肺湿/干质量比、BALF中总蛋白含量及白细胞数均显著减少（P<0.05）,病理损伤显著减轻,TNF-α、IL-1β、IL-6含量均显著减少（P<0.05）,MDA含量显著下降,SOD活性显著升高（P<0.05）,NF-κB p65、pIκBα和TLR4表达水平均显著下调（P<0.05）。结论 五味子乙素能够减轻LPS诱导的脓毒症急性肺损伤大鼠肺组织的病理损伤,抑制炎症反应和氧化应激反应,抑制NF-κB通路激活。     

还原性谷胱甘肽对急性坏死性胰腺炎肺损伤的影响

目的:观察急性坏死性胰腺炎(ANP)大鼠肺组织核因子-κB(NF-κB)mRNA,细胞因子(TNF-α,IL-1β,IL-18),髓过氧化物酶(MPO)的变化,探讨还原性谷胱甘肽(GSH)治疗肺损伤的机制. 方法:72只Wistar大鼠随机分成3组: ANP组, GSH组,SO组(假手术组). 于术后6,12,18 h取肺组织供实验用. 免疫组化测定肺中IL-1β,IL-18,TNF-α的表达,比色法测定MPO的活性,RT-PCR检测NF-κB p65 mRNA的表达,胰、肺行组织学观察. 结果:ANP组肺组织NF-κB mRNA,IL-18, IL-1β,TNF-α,MPO的水平升高,NF-κB,IL-1β,TNF-α在12 h达高峰,与SO组相比各时间点均有统计学差异(P＜0.05). GSH治疗后IL-1β,IL-18,TNF-α在各时间点均降低,NF-κB mRNA,MPO在12 h降低(P＜0.05). 结论:ANP时NF-κB,IL-18,IL-1β,TNF-α及MPO均参与了肺损伤,GSH能够抑制肺NF-κB活化,促炎因子的表达及中性粒细胞的聚集,对肺损伤有保护作用.     

肿瘤坏死因子α中和抑制脂多糖诱导小鼠急性呼吸窘迫综合征肺组织细胞凋亡的机制探讨

目的 探讨肿瘤坏死因子α（ TNF-α） 中和抑制脂多糖（ LPS） 诱导小鼠急性呼吸窘迫综合征（ ARDS） 肺组织细胞凋亡的机制。方法 小鼠随机分为对照组、LPS 组和TNF-α中和组。采用LPS（ 5 mg/kg） 气道雾化造小鼠ARDS 模型, TNF-α中和组在滴入LPS 前24 h 腹腔注射依那西普（ 0. 4 mg/kg） , 滴入LPS 2 h 后收集标本。PCR 检测各组肺组织核转录因子κB（ NF-κB） p65、Bax、Bcl-2的表达水平,Western blot 检测NF-κB p65 和Erk1 /2 及二者磷酸化、Bax、Bcl-2 的蛋白水平; 测量各组肺组织干湿重比; HE 染色观察各组肺组织病理改变, 采用肺损伤半定量评分评估肺组织损伤程度。结果 LPS 组肺组织NF-κB 及Erk1 /2 活化水平升高、Bcl-2 与Bax 比降低（ P 〈0. 05） 。TNF-α中和能明显降低ARDS小鼠肺组织NF-κB 活化水平, Bcl-2 与Bax 比值升高。TNF-α中和组小鼠肺组织湿干重比及肺损伤半定量评分较LPS 组显著降低（ P 〈0. 05） 。结论 TNF-α中和抑制脂多糖诱导小鼠ARDS肺组织损伤, 其机制与抑制Erk1/2、NF-κB 活化, 上调Bcl-2/Bax 比值, 最终减少细胞凋亡密切相关。     

茯苓酸对LPS诱导的急性肺损伤小鼠的保护作用及机制

目的 观察茯苓酸(PA)对脂多糖(LPS)诱导的巨噬细胞活化的影响以及对LPS诱导的急性肺损伤(ALI)小鼠的保护作用,并探讨其作用机制.方法 体外培养小鼠单核巨噬细胞系RAW264.7和原代肺巨噬细胞,使用40μmol/L PA孵育30 min后,以100 ng/mL的LPS刺激24 h.将36只健康C57BL/6小鼠随机均分为Control组、LPS组和LPS+PA组,每组12只,采用经气管内滴入5 mg/kg的LPS诱导ALI模型.收集处理后的细胞、细胞培养上清液或小鼠肺组织,使用RT-PCR法检测诱导型一氧化氮合酶(iNOS)、肿瘤坏死因子α(TNF-α)、白介素6(IL-6)、白介素1β(IL-1β)、白介素12(IL-12)mRNA水平;比色法检测一氧化氮(NO)水平及髓过氧化物酶(MPO)活性;采用HE染色观察小鼠肺组织病理变化;Western blot检测p38、p-p38、MK2、p-MK2、Akt、p-Akt、p65、p-p65蛋白表达.结果 体外实验中,PA显著抑制LPS刺激的RAW264.7和肺巨噬细胞促炎介质(iNOS、NO)以及炎症细胞因子(TNF-α、IL-6、IL-1β、IL-12)生成(P<0.01),抑制细胞中p38、MK2、Akt和NF-κB(p65)蛋白的磷酸化(P<0.05).体内实验中,PA显著抑制LPS诱导的小鼠肺组织病理损伤(P<0.05),减少肺组织中促炎介质iNOS以及炎症细胞因子(TNF-α、IL-6、IL-1β、IL-12)生成(P<0.01),抑制肺组织中p38、MK2、Akt和NF-κB(p65)蛋白的磷酸化(P<0.05).结论 PA能抑制LPS诱导的巨噬细胞活化和炎症反应,并对LPS诱导的ALI小鼠具有保护作用,其机制与抑制丝裂原活化蛋白激酶p38(p38 MAPK)和Akt介导的NF-κB信号通路激活相关.     

ω-3多不饱和脂肪酸对脂多糖诱导的脑损伤新生大鼠的神经保护作用

目的探讨ω-3多不饱和脂肪酸(ω-3 PUFA)对脂多糖(LPS)诱导的脑损伤新生大鼠的神经保护作用。方法将48只3日龄Sprague-Dawley新生大鼠随机分为对照组、LPS组、ω-3 PUFA组和ω-6 PUFA组,每组12只。LPS组、ω-3 PUFA组和ω-6 PUFA组大鼠腹腔注射0.6 mg·kg~(-1)LPS建立脑损伤模型,然后分别立即腹腔注射等容积的生理盐水、ω-3 PUFA和ω-6 PUFA;对照组大鼠腹腔注射等容积的生理盐水。24 h后处死各组大鼠,取海马组织,采用实时荧光定量聚合酶链反应和Western blot法检测各组大鼠海马组织中Toll样受体4(TLR4)、核因子-κB(NF-κB)、肿瘤坏死因子-α(TNF-α)、白细胞介素(IL)-1β、IL-6的mRNA和蛋白表达。结果 LPS组、ω-3 PUFA组、ω-6 PUFA组新生大鼠海马组织中TLR4、NF-κB、TNF-α、IL-1β及IL-6 mRNA和蛋白表达均高于对照组(P<0.05);ω-6 PUFA组新生大鼠海马组织中TLR4、NF-κB、TNF-α、IL-1β及IL-6 mRNA和蛋白表达高于LPS组(P<0.05);ω-3 PUFA组新生大鼠海马组织中TLR4、NF-κB、TNF-α、IL-1β及IL-6 mRNA和蛋白表达均低于LPS组和ω-6 PUFA组(P<0.05)。结论ω-3 PUFA能下调大鼠海马组织中TLR4/NF-κB信号通路,减少炎性因子TNF-α、IL-1β、IL-6释放,对LPS所致的脑损伤新生大鼠有神经保护作用。     

依拉普利对丙烯醛诱导的气道炎症干预作用的研究

目的应用丙烯醛建立气道炎症模型,给予依拉普利进行干预,了解其对气道炎症的影响,并探讨核因子(NF-κB)在这一过程中的作用。方法健康雄性SD大鼠24只,随机分为4组,每组6只。A组:空白对照组(吸入生理盐水);B组:依拉普利自身对照组(单纯依拉普利灌胃),依拉普利0.5mg/(kg.d)灌胃;C组:模型组(丙烯醛),大鼠吸入4mg/L丙烯醛,每次3h,每天两次;D组:依拉普利干预组(吸入丙烯醛 依拉普利灌胃),处理同模型组,并给予依拉普利0.5mg/(kg.d)灌胃。21d后处死大鼠,采集标本。采用免疫组化方法检测肺组织中血管紧张素和气道上皮NF-κB p65的表达,并计算NF-κB p65的入核率。采用Western blot方法检测肺组织胞浆中的NF-κB。收集支气管肺泡灌洗液,检测其中的中性粒细胞数,用ELISA的方法检测TNF-α、IL-8。结果免疫组化结果显示模型组大鼠肺组织中AngⅡ、NF-κB p65的表达,NF-κB p65入核率较空白对照组明显增高,依拉普利干预组各项指标较模型组明显减少。Western blot检测发现细胞浆中NF-κB的表达量显著增高(P<0.05),依拉普利干预可以使NF-κB p65的表达有一定程度的降低(P<0.05)。支气管肺泡灌流液(BALF)中中性粒细胞数以及ELISA检测的BALF中的炎性细胞因子IL-8和TNF-α模型组显著高于对照组,依拉普利干预组中均有明显降低(P值均<0.05)。结论在丙烯醛诱导的气道和肺的炎症模型中,AngⅡ起了重要的作用,依拉普利可部分抑制这一炎症反应,其机制可能与它抑制了NF-κB的激活有关。     

欧前胡素抑制compound48/80介导的肥大细胞脱颗粒作用机制研究

[目的]探讨欧前胡素抑制compound48/80介导的肥大细胞脱颗粒作用机制.[方法]取雄性SD大鼠的腹腔肥大细胞进行体外培养,利用compound48/80诱导肥大细胞活化,治疗组分别加入10,20,40μmol/L的欧前胡素.利用ELISA法检测各组肿瘤坏死因子-α(TNF-α)及白细胞介素-6(IL-6)水平,利用Western blot法检测NF-κB p65水平.[结果]与正常对照组比较,compound48/80可激活实验大鼠腹腔肥大细胞,增加细胞核内NF-κB p65表达量,减少胞浆中NF-κB p65表达量,促进NF-κB p65核转位;与正常对照组比较,模型对照组TNF-α,IL-6水平均明显升高(P<0.05).与模型对照组比较,欧前胡素各剂量组细胞核内NF-κB p65表达量明显减少,胞浆中NF-κB p65表达量明显增加,欧前胡素抑制NF-κB p65核转位,并明显降低肥大细胞TNF-α,IL-6水平(P<0.05),且作用效果呈浓度依赖性增强.[结论]欧前胡素可通过调节NF-κB激活抑制肥大细胞脱颗粒,从而抑制炎性细胞因子的释放.     

辛伐他汀对大鼠烟雾吸入性肺损伤中炎症反应的抑制作用

目的 研究辛伐他汀对大鼠烟雾吸手性肺损伤中炎症反应的抑制作用.方法 将18只SD大鼠(雌雄不限)随机分为正常组、盐水组、辛伐他汀组,建立烟雾吸手性肺损伤模型,模型建立后30 min及12 h,辛伐他汀组给予辛伐他汀溶液50 mg/kg灌胃,盐水组大鼠给予等量生理盐水灌胃,正常组大鼠正常饲养.于致伤后24 h取右上肺肺组织行病理检查并行病理学评分.经腹主动脉取全血离心留取上层血清,并行左侧支气管肺泡灌洗留取肺泡灌洗液(BALF),采用ELISA法检测血清及BALF中白介素(IL)-6、肿瘤坏死因子(TNF)-α的含量.取右下肺部分肺组织以Western blot法检测蛋白提取物中IL-6、TNF-α及胞质中NF-κB p65的蛋白表达情况.结果 光镜下观察正常组肺泡结构正常,盐水组肺泡间隔水肿,肺泡腔内可见大量的中性粒细胞浸润,而与盐水组相比,辛伐他汀组上述症状减轻且肺组织病理学评分降低(P＜0.05).盐水组、辛伐他汀组血清和BALF中IL-6、TNF-α的含量以及肺组织蛋白提取物中IL-6、TNF-α和NF-κB的表达均较正常组明显升高(P＜0.05).而与盐水组相比,辛伐他汀组大鼠血清和BALF中IL-6、TNF-α的含量以及肺组织蛋白提取物中IL-6、TNF-α及NF-κB p65的表达均降低(P＜0.05).结论 辛伐他汀通过抑制炎症介质的产生及炎症细胞的浸润,减轻吸手性肺损伤的炎症反应,对肺组织起到了一定的保护作用.     

Sirt1通过去乙酰化NF-κB/p65减轻小鼠肺泡Ⅱ型上皮细胞脂多糖损伤

目的 研究酵母沉默信息调节因子2相关酶1(sirtuin type 1,Sirt1)在肺泡Ⅱ型上皮细胞(AECⅡ)脂多糖(LPS)损伤中对NF-κB的作用.方法 购买Sirt1过表达(Tg)小鼠和野生型(WT)小鼠,饲养、繁殖、鉴定新生小鼠基因型;通过qRT-PCR和Western blot鉴定Tg小鼠和WT小鼠肺组织Sirt1 mRNA和蛋白表达差异;两种不同Sirt1基因背景的小鼠LPS(15 mg/kg)腹腔注射12 h后,HE染色鉴定肺组织病理变化差异;分离纯化两种小鼠的AECⅡ并进行鉴定;两种不同Sirt1基因背景的AECⅡ用LPS 10 μg/mL处理后,分别在0、2、4、6、8、12、24 h用ELISA检测细胞上清液中白细胞介素石(IL-6)和肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)的水平;用LPS 10 μg/mL处理两种AECⅡ,同时设置生理盐水对照组,12 h后用Western blot鉴定细胞NF-κB/p65蛋白和乙酰化NF-κB/p65蛋白的表达差异.结果 新生小鼠有Tg和WT两种不同的基因型;Tg小鼠肺组织Sirt1 mRNA和蛋白的表达水平显著高于WT小鼠(P＜0.05);小鼠腹腔注射LPS 15 mg/kg 12 h后肺组织病理变化显示,Tg小鼠较WT小鼠肺组织损伤程度轻;两种AECⅡ用LPS 10μg/mL处理后,细胞上清液中IL-6和TNF-α的表达水平随时间推移呈现逐渐升高的趋势,Tg组AECⅡ细胞上清液中IL-6和TNF-α的表达水平在多个时间点都显著低于WT组(P＜0.05);两种AECⅡ经LPS(10 μg/mL)处理后,与各自的空白对照组相比Sirt1含量下降,且WT组AECⅡ下降更明显,LPS处理后WT组AECⅡ的NF-κB/p65和乙酰化NF-κB/p65的变化倍数均高于Tg组.结论 Sirt1可能通过去乙酰化NF-κB/p65参与调控AECⅡLPS炎症损伤,抑制急性呼吸窘迫综合征(acute respiratory distress syndrome,ARDS)小鼠肺部炎症反应.     

维拉帕米对梗阻性黄疸大鼠肝组织核因子κB表达的影响

目的:探讨维拉帕米对梗阻性黄疸时肝组织核因子-κB(nuclear factor kappa B, NF-κB)表达的影响. 方法:将雄性SD大鼠48只随机分成胆管结扎组、维拉帕米组和假手术组.分别于术后第7天、14天处死大鼠,观察肝组织NF-κB p65表达、丙二醛(MDA)和超氧化物歧化酶(SOD)含量以及血清肿瘤坏死因子-α(TNF-α)和白介素-6(IL-6)的变化. 结果:维拉帕米组肝组织NF-κB p65表达、MDA含量及血清TNF-α,IL-6水平均明显低于胆管结扎组(P＜0.05或P＜0.01). 结论:维拉帕米可下调肝组织NF-κB的表达,减轻梗阻性黄疸时肝损伤.     

Acupuncture Treatment of Vomiting

CASE HISTORY A female patient, 46 years old, head of the foreign affairs department of a certain university in Beijing, paid her first visit on October 9, 2006, with the chief complaint of vomiting for one month. She got vomiting after meals in early September. Before that, she had discomfortable sensation in the stomach due to angry with others, but she didn't pay much attention. Later, it developed into vomiting after eating. After the vomiting, the discomfort would be relieved, but with slight hypodynamia. She was once diagnosed as having 'neurogenic vomiting'. Having taken some western and Chinese drugs, the above symptoms were a little bit improved, but she would have nausea upon eating and with regurgitation. Because of the fear for vomiting, she did not dare to have food intake, with body weight reduction of 6 kilos in one month.     

Qiu Baoguo''''s Experience in Treating Consumptive Syndromes after Radio-Chemotherapies

Radiotherapy and chemotherapy are the important modern medical therapies for malignant tumors,yet they can also bring about serious local and systemic toxic side reactions so to decrease the patient;'s life quality,manifested by a series of consumptive symptoms.Having engaged in the combined work of Chinese and western medicine for nearly 50 years,the research fellow Qiu Baoguo in Henan Provincial Academy of TCM has developed his unique views on the TCM study of consumptive syndromes.The author of this essay had once the fortune tO follow Dr.Qiu in clinic,and specially would like to introduce in the following Dr.Qiu's experience in treating consumptive syndromes after radio-chemotherapies for patients with malignant tumor.     

Insomnia Due to Deficiency of Both the Heart and Spleen Treated by Acupuncture-Moxibustion and Chinese Tuina

OBJECTIVE: To observe therapeutic effects of the comprehensive therapy of acupuncture-moxibustion and Chinese Tuina for treatment of insomnia due to deficiency of both the heart and spleen. METHODS: 92 cases were divided randomly into the treatment group (treated by acupuncture-moxibustion and Chinese Tuina) and the control group (treated by acupuncture-moxibustion). RESULTS: The therapeutic effect of the treatment group was obviously superior to that of the control group (the CHI2 test showed P < 0.01). CONCLUSIONS: The comprehensive therapy of acupuncture-moxibustion and Chinese Tuina can give marked therapeutic effects for treatment of insomnia due to deficiency of both the heart and spleen.     

Analysis of CK-19,PDX-1,Nestin,Ngn3 in different donor islet purity in rats

Objective: To investigate if there are the CK-19, PDX-1, Nestin, Ngn3 positive cells in the donor islets of different purity in rats. Methods: Thirty male adult SD rats were randomly divided into 3 groups. Islets were isolated using digestion by ductal injection of collagenase. Group Ⅰ (n=10): Separating cell preparations were not purified, Group Ⅱ(n=10): Islet sediment was purified with 25% Ficoll400 ,Group Ⅲ (n=10): Islet sediment was purified with 25% and 11% Ficoll-400. The levels of protein of CK-19, PDX-1, Nestin and Ngn3 were detected by immunohistochemistry and the mRNA of CK-19, PDX-1, Nestin, Ngn3 was amplified by RT-PCR. Results: After two different purification methods applied, three islet preparations of different purities were obtained. The difference of islet purity was significant among various groups (P＜0.05). Compared with group Ⅱ and group Ⅲ,the protein and mRNA of CK-19, PDX-1, Nestin,Ngn3 were both higher in group Ⅰ; group Ⅲ was poorly expressed. Conclusions: The three different islet purity donor islet have different CK-19, PDX-1, Nestin, Ngn3 positive cells within them, indicating that there are some islet stem cells in the purified donor islet.     

A preliminary screening study on the associated proteins in human psoriasis vulgaris by serum proteomics technologies

Objective：To investigate the optimum screening conditions of associated proteins in human psoriasis vulgaris by serum proteomics technique, and to screen the different expression proteins related with psoriasis vulgaris. Methods：Serum samples of peripheral blood were collected from newly diagnosed psoriasis vulgaris patients in the clinic, and 20 matched healthy persons. Serum albumin IgG was removed by filtering with ProteoExtract Albumin/IgG. After comparative proteomics analysis the different protein spots were identified using 2-DE and MS. Results ：Electrophoresis figures with high resolution and reproducibility were obtained. Three different expression proteins were found only in the serum from psoriasis vulgaris patients, while nine other different proteins expressing from healthy volunteers. Conclusion：The protein expression was different in the serum between the psoriasis vulgaris patients and healthy volunteers. It was hoped that we could find the biomarkers related to psoriasis vulgaris by using proteomics.     

A CASE OF HUGE GASTRIC DISOPYROBEZOAR

PYTOBEZOARS are common bezoars in gastrontestinal tract, commonly seen in stomach and mall intestine,1but huge disopyrobezoars are     

Acupuncture Treatment of Chest Bi Syndrome

CASE HISTORY A male,a retired officer of 61 years old,paid his first visit on May 12,2006.The patient stated that 2 weeks before he suddenly got paroxysmal precordial choking pain,with irregular attacks.Each attack would last several seconds to several minutes.The attack was accompanied with heavy oppressed sensation in the precordial region,palpitation,lassitude,and in severe cases,sweating,which was once diagnosed by a hospital as'coronary heart disease'.Recalling the case history,the patient said that several days before he got angry with others because of some affairs in work,and he was not so used to the life pattern since he had just retired from his busy working post.At usual times,he was quick tempered and peevish.In recent days,he had poor appetite,and loose stool.     

Instructions to Contributors

The English edition of Chinese Journal of Integrative Medicine is edited and published by the Chinese Journal of Integrated Traditional and Western Medicine Press.Original scientific papers of advanced clinical and experimental medicine in the field of complementary/alternative medicine or integrative medicine are expected.     

Development Is A High Level Inheritance for China Time-honored Brand Products

<正>As culture is the soul of a nation,the three books,"History of Chinese Philosophy,""History of Chinese Culture"and"History of Chinese Science and Technology"have demonstrated the superiority of our great Chinese culture,and its significant impact in the field of international culture.Both core value and practical value of the Chinese culture are very clear,reflected in the views of universe,nature,life,health,disease,and therapy and related considerations,concepts,and technical methods.