The petroleum ether fraction of Celastrus paniculatus Willd. seeds demonstrates antiarthritic effect in adjuvant-induced arthritis in rats

Objective:Celastrus paniculatus(CP)Willd.is a plant indigenous to India with medicinal properties.It is used in the ayurvedic treatment of inflammatory ailments such as rheumatoid arthritis.The present study was designed to investigate the therapeutic efficacy of the petroleum ether fraction(PCP)obtained from CP seeds on adjuvant-induced arthritis in rats.Methods:Arthritis was induced in SpragueeDawley rats by immunization with Freund’s complete adjuvant(FCA).Arthritis severity was evaluated by arthritis score,paw volume,tibiotarsal joint thickness,body weight,dorsal flexion pain,motility test,stair climbing ability and index of thymus and spleen.Moreover,histopathology of knee joints supported by haematological analysis was used to assess the anti-arthritic action of PCP.The levels of superoxide dismutase(SOD),glutathione(GSH),catalase(CAT),nitric oxide(NO)and malondialdehyde(MDA)in liver were also assessed.Serum samples were collected for estimation of aspartate transaminase(AST),alanine transaminase(ALT)and alkaline phosphatase(ALP).In addition,cytokines such as tumour necrosis factor-alpha(TNF-a)and interleukin-6(IL-6)were estimated in plasma.Results:PCP significantly alleviated arthritic progression with regards to paw swelling,arthritic score,immune organ indices,hyperalgesic effect and body weight.This phenomenon was correlated with significant suppression of overproduction of inflammatory cytokines(TNFa and IL-6),oxidant stress markers(MDA and NO)and cellular enzyme(AST,ALT and ALP)levels versus arthritic rats without treatment.Moreover,PCP restored the decreased levels of SOD,CAT and GSH.Conclusion:Our results suggest that the anti-arthritic properties of PCP may be due to immunosuppressive effects,cytokine regulation,antioxidant effects and bone-protective activities.

The analgesic effect of electroacupuncture in complete Freund's adjuvant rats:a meta analysis

Pain is a global problem and has been found sensitive to acupuncture. A large number of existing and newly published studies have demonstrated the analgesic effect of electroacupuncture(EA) in complete Freund's adjuvant(CFA) rat model, necessitating a new and comprehensive review. To evaluate the curative effect of EA on thermal hyperalgesia in CFA rats, and to explore parameters that influence treatment effects, studies of EA treatment on thermal hyperalgesia of CFA rat model were identified from nine databases up to June 17, 2017. Outcome measure was heat pain threshold. All the data were analyzed using Stata 14.0/MP software. 26 studies identified included 801 rats. The quality score of the studies ranged from 3 to 6, with a mean of 4.08. The effect of EA group was improvement in outcome compared with CFA group. In subgroup analyses, frequency 2, 100, 2/100 or 20-100 Hz. acupoint Huántiào(环跳GB30),Kūnlún(昆仑 BL60) +Xuánzhōng(悬钟 GB39), Zúsānlī(足三里 ST36) +BL60 or ST36+Sānyīnjiāo(三阴交SP6), retention time 20 or 30 min, treatment time for post-CFA injection immediately, the same day as CFA injection, post-CFA injection 24 or 48 h and interval 24 or 48 h all can improve the effect on CFA rat heat pain threshold. These results show that there is positive effective of EA in CFA-induced pain,different parameters have different effects on EA treatment of CFA heat hyperalgesia, however, because of the number of eligible researches and the high risk of bias, the evidence supporting this conclusion is limited.

Anti-arthritic effect of Distemonanthus benthamianus extracts against rheumatoid arthritis in rats

Objective:To evaluate the anti-arthritic effect of aqueous and methanolic extracts of Distemonanthus benthamianus.Methods:Monoarthritis was induced by an injection of 0.3 mL zymosan A(0.9%NaCl,v/v)in the right posterior knee joints of rats.Then,joint diameter and pain threshold were determined.Polyarthritis was induced by an intracaudal injection of complete Freund’s adjuvant and rats were treated from day 14 post 1st complete Freund’s adjuvant injection until 28 day.The clinical,hematological,biochemical and oxidative stress parameters were evaluated.In addition,histological analysis of the knee joint was perfomed in both tests.Results:The aqueous and methanolic extracts of Distemonanthus benthamianus at a dose of 500 mg/kg ameliorated zymosan A-induced monoarthritis,as evidenced by reduced joint diameter,increased pain threshold,as well as improved joint architecture.In addition,both extracts of Distemonanthus benthamianus markedly increased body weight and pain threshold,while reducing paw edema in polyarthritic rats.They also led to a marked decrease in platelets and white blood cells(P<0.05),as well as a significant increase in red blood cells,hemoglobin and hematocrit(P<0.05).The aqueous and methanolic extracts of Distemonanthus benthamianus significantly reduced alanine aminotransferase,aspartate aminotransferase,alkaline phosphatase activities,while increasing serum protein levels(P<0.05)with no significant variation in creatinine level.Moreover,both extracts increased catalase and glutathione activities(P<0.05),and inhibited malondialdehyde and nitric oxide production(P<0.01 and P<0.001)in the liver and kidneys.Histological analysis of the joints showed that both extracts triggered tissue reparation.Conclusions:Distemonanthus benthamianus could be used as a potential candidate in the treatment of rheumatoid arthritis.

Biophoton Imaging Evaluation of the Process of Rheumatoid Arthritis in Rats

Rheumatoid arthritis (RA) is a common form of chronic inflammatory arthritis, and it mainly causes the destruction of small joints. The development of this disease is a relatively secret and repeated process, and therefore early diagnosis and evaluation of the disease is usually difficult. In this study, an arthritis model was successfully induced by injecting complete Freund’s adjuvant (CFA) into the toes of lower limbs of Wistar rats. Seven days after injection of CFA, obvious redness and swelling appeared at the toe joints of lower limbs accompanied by more sensitivity to thermal stimulation. Using the ultraweak bio-photon imaging system (UBIS) established by us, the toe joint area of the lower limbs of rats was imaged 7 days after injection of CFA. It was found that the volar part of lower limbs of arthritis rats showed significantly higher biophoton emissions compared with the control group. The results of this study may provide a basis for further research and devel-opment of early diagnosis and assessment of lesion progression of rheumatoid arthritis.

Preparation and analysis of active rat model of rheumatoid arthritis with features of TCM toxic heat-stasis painful obstruction

Objective:To establish a collagen type II-induced rat model of rheumatoid arthritis(RA)presenting characteristics of the human form of the traditional Chinese syndrome pattern of toxic heat-stasis painful obstruction(bi zheng;arthromyodynia)as well as pathologic features of active RA.The Chinese herbal medicine Tengmei decoction was used to validate the animal model.Methods:Ninety specific pathogen free Sprague-Dawley rats were randomly divided into a normal group of 6 rats and a model group of 84 rats.To establish the rat model of collageninduced arthritis(CIA),bovine type II collagen in complete Freund’s adjuvant was injected into the model group rats as a priming dose(Day 0)and boosting dose(Day 9).Changes in arthritic index(AI)scores,including limb swelling,were monitored.Thereafter,24 successfullyestablished CIA rats were randomly assigned to 4 groups with 6 animals each:model,positive control drug,high-dose traditional Chinese herbal medicine,and traditional Chinese herbal medicine.A blank control group of 6 rats was included.After 12 weeks of intervention with Tengmei decoction,articular synovial tissue and serum specimens were collected to detect interleukin-2(IL-2)and IL-17 transcription and protein expression levels.

雷公藤内酯醇(T10)通过抑制脊髓内胶质细胞的激活改善大鼠CFA诱导的炎性痛的机制研究

目的:观察腹腔注射雷公藤内酯醇(Triptolide,T10)对完全弗氏佐剂(complete Freund’s adjuvant,CFA)诱导的大鼠慢性炎性痛行为的改善作用并探讨其机制。方法:SD大鼠随机分为四组,即Saline+Veh组、Saline+T10组、CFA+Veh组和CFA+T10组。后两组大鼠于右侧足底注射CFA制备大鼠慢性炎性痛模型,前两组则在相同部位注射生理盐水。第二组和第四组大鼠分别于造模前1 h给予T10腹腔注射,随后每12 h给予腹腔注射药物1次,持续用药7 d;第一组和第三组则以相同方式给予100 ml/kg的生理盐水作为对照。采用辐射热法和机械刺激法连续观察给药后大鼠的痛行为;应用免疫组织化学染色和Western Blot方法观察连续给予T10 3d和7 d后大鼠腰膨大平面脊髓背角内小胶质细胞和星形胶质细胞的活化程度;应用实时定量PCR(RT-PCR)方法观察连续给药7 d后大鼠腰5背根神经节内炎性因子,如白细胞介素-6(interleukin-6,IL-6)、白细胞介素-1β(interleukin-1 beta,IL-1β)和肿瘤坏死因子-α(tumour necrosis factor-α,TNF-α)的表达变化。结果:(1)与CFA+Veh组相比,CFA+T10组大鼠机械缩足阈值及辐射热痛潜伏期显著下降(P<0.05),并持续到造模成功后7 d,表明腹腔注射T10可以明显改善CFA诱导的大鼠机械痛敏和辐射热痛敏。(2)免疫组织化学染色和Western Blot结果显示:造模后3 d和7 d后CFA+Veh组大鼠脊髓背角出现大量CFA诱导活化的小胶质细胞和星形胶质细胞;小胶质细胞标记物IBa-1和星形胶质细胞标记物GFAP的表达量分别在CFA造模后3 d和7 d显著增高(P<0.05),而给予T10 3 d和7 d后炎性痛大鼠腰膨大平面IBa-1和GFAP的活化程度均显著减轻(P<0.05)。(3)RT-PCR结果显示:与Saline+Veh组相比,CFA造模7 d后腰5背根神经节内炎性因子IL-1β、IL-6 mRNA和TNF-αmRNA的表达显著增高(P<0.05),腹腔注射T10 7 d后上述炎性因子的表达则显著降低(P<0.05)。结论:腹腔注射T10可以显著改善CFA诱导的大鼠慢性炎性痛,其机制可能与抑制脊髓背角小胶质细胞和星形胶质细胞的活化以及炎性因子IL-1β、IL-6和TNF-α的合成有关。

IP-10和JNK介导CFA诱导的大鼠足底炎性疼痛

目的:研究完全弗氏佐剂(CFA)外周注射诱导的趋化因子干扰素诱导蛋白10(IP-10)在局部皮肤的表达,以及JNK激酶抑制剂对CFA诱导的疼痛和IP-10表达的调节。方法:大鼠单侧足底皮下注射CFA150μl诱导大鼠慢性炎症性疼痛。在注射后不同时间点,检测双侧足底的热痛觉过敏。通过逆转录-聚合酶链反应(RT-PCR)、酶联免疫吸附反应试验(ELISA)的方法,分别从mRNA和蛋白水平检测大鼠注射CFA后的足底皮肤中趋化因子IP-10表达的变化。通过在足底注射JNK抑制剂SP600125,观测其对疼痛的产生和IP-10表达的影响。结果:大鼠单侧足底皮下注射CFA诱导足底长时间的热痛觉过敏。在注射后3h、6h、1天,在注射部位足底皮肤IP-10mRNA和蛋白表达均明显增加;足底注射JNK抑制剂,能有效延迟热痛觉过敏的形成和足底皮肤中趋化因子IP-10的表达上调。结论:趋化因子IP-10参与CFA诱导的疼痛,而且JNK激酶能够调控CFA诱导的疼痛和IP-10的表达。

佐剂FCA与Quil A对rGST-Sj32的免疫增强作用的比较

目的 比较弗氏完全佐剂 (FCA)与皂素的纯化物 Quil A的免疫增强作用 ,进一步提高重组抗原 r GST- Sj32的免疫效果。 方法 r GST- Sj32 +FCA或 Quil A免疫 NIH小鼠 3次 ,EL ISA法检测抗体水平 ,用减虫率及减卵率表示保护效果。 结果 与 PBS对照组比较 ,r GST- Sj32 +FCA免疫小鼠减虫率为 42 .9% ,每克肝卵 (L EPG)减少率 5 1.0 % ,每雌肝卵 (L EPF)减少率为 2 3.9% ,抗体滴度达 1∶ 2 5 6 0 0。r GST- Sj32 +Quil A免疫小鼠减虫率为 46 .0 % ,L EPG减少率39.4% ,L EPF减少率为 8.5 % ,抗体滴度达 1∶ 5 12 0 0。 结论 FCA和 Quil A均可增强 r GST- Sj32免疫小鼠的抗感染保护性免疫力 ;FCA亦可增强 r GST- Sj32诱导小鼠抗生殖免疫 ,Quil A无增强抗生殖免疫的作用。

机械穿刺结合肿瘤坏死因子α及完全弗氏佐剂构建大鼠椎间盘源性腰痛模型

背景:椎间盘退变是导致下腰痛的重要原因。目前国内外对于椎间盘退变的造模方法众多,但缺乏一个针对椎间盘退变引起下腰痛的模型。目的:对比机械穿刺结合肿瘤坏死因子α+完全弗氏佐剂注射与传统仅机械穿刺下建立的大鼠椎间盘源性腰痛模型的效果。方法:将18只成年SD雄性大鼠,按照随机数字表法分3组,每组6只,空白组不进行任何操作;对照组大鼠L_(4-5)椎间盘建立传统机械穿刺椎间盘退变模型;实验组在机械穿刺基础上,以微量注射器向L_(4-5)椎间盘内注入肿瘤坏死因子α+完全弗氏佐剂建立机械穿刺结合炎症因子诱导的椎间盘退变模型。术后4周,热板法测大鼠痛阈值用于评估椎间盘退变大鼠对热伤害感受;MRI观察各组大鼠椎间盘退变情况;ELISA法检测血清肿瘤坏死因子α、白细胞介素1β、白细胞介素6、前列腺素E2水平;苏木精-伊红和番红O固绿染色观察椎间盘形态变化。结果与结论:①在疼痛上,与对照组相比,实验组大鼠的行为学痛阈值持续降低,血清学各炎症因子指标显著增高;②在形态上,与对照组相比,实验组大鼠的MRI L_(4-5)髓核信号完全消失;组织病理学染色显示:对照组大鼠髓核完整,可见较多脊索细胞,部分纤维环破裂;实验组大鼠的脊索细胞稀少,髓核与纤维环结构紊乱,边界消失;③结论:大鼠椎间盘机械穿刺结合肿瘤坏死因子α+完全弗氏佐剂注射可成功建立椎间盘源性腰痛模型,该操作方法简单、经济,模型退变及腰痛明显,明显缩短椎间盘退变成模周期,可作为研究椎间盘源性腰痛模型的参考。

Lewis大鼠实验性变态反应性脑脊髓炎动物模型的建立及百日咳疫苗的影响

目的建立可靠的Lewis大鼠实验性过敏性脑脊髓炎(experimental allergic encephalomyelitis,EAE)动物模型;方法采用Lewis大鼠脚垫皮下注射豚鼠全脊髓匀浆(spinal cords homogenate of guinea pigs,GPSCH)和含有卡介苗(bacille calmetteguerin,BCG)10mg/ml的完全福氏佐剂(complete Freund's adjuvant,CFA)诱导EAE,从临床症状评分、光镜、电镜下病理学改变对模型进行评价。结果Lewis大鼠EAE的发病率为9/10,潜伏期为12.6±1.01天。百日咳疫苗(bordetella pertussis vaccine,BPV)可提高EAE的发病率,缩短EAE的潜伏期(P<0.05),加重其临床症状和病理改变(P<0.05)。结论GPSCH和CFA免疫Lewis大鼠建立的EAE是成功可靠的;BPV对EAE有显著的促发作用,可诱导形成超急性EAE。

完全弗氏佐剂雌性SD大鼠类风湿关节炎模型的建立及塞来昔布对其治疗效果

目的利用完全弗氏佐剂(CFA)建立雌性SD大鼠类风湿关节炎(RA)模型,并考察不同给药方式的塞来昔布对RA的治疗效果。方法将24只雌性SD大鼠随机分成正常对照组和低、中、高剂量模型组(n=6),低、中、高剂量模型组分别用0.05、0.1、0.2 mL CFA(10 mg/mL)于大鼠右后肢足跖部注射诱导构建RA模型,筛选出合适的剂量。另取24只雌性SD大鼠分为正常对照组、模型对照组、塞来昔布口服组、塞来昔布注射组(n=6),后3组利用最佳致炎剂量CFA建立RA模型。塞来昔布口服组给予市售塞来昔布胶囊,每天灌胃1次,每次20 mg;塞来昔布注射组给予用原料药配制的塞来昔布混悬液,每周于大鼠右后肢足跖部注射给药1次,剂量20 mg/kg。测量各组大鼠足容积,并进行临床评分。通过ELISA检测各组大鼠血清中3种炎症因子(IL-1β、IL-6、TNF-α)的浓度,取大鼠踝关节组织进行H-E染色以观察组织病变情况。结果在雌性SD大鼠中,足跖部注射0.1 mL CFA(10 mg/mL)可较好地模拟RA中度炎症反应,注射CFA后逐渐出现足爪红肿,全身临床评分及足部关节炎指数评分均有升高,炎症高峰期在免疫后19 d。塞来昔布口服组和注射组足容积较模型对照组减小(P均<0.05),全身临床评分及足部关节炎指数评分均较模型对照组降低(P均<0.01),血清IL-1β、IL-6、TNF-α浓度均较模型对照组降低(P均<0.05),踝关节组织病理改变均较模型对照组减轻;其中塞来昔布注射组的全身临床评分及足部关节炎指数评分低于口服组(P均<0.05),踝关节组织病理改变轻于口服组。结论足跖部注射0.1 mL CFA(10 mg/mL)可致SD雌性大鼠中度炎症反应,能较好地模拟RA的病理过程。每周经足跖部注射1次塞来昔布混悬液对模型大鼠RA的疗效优于每天口服1次塞来昔布。

Analgesic and Anti-Arthritic Effect of <i>Enicostemma littorale</i>Blume

Enicostemma littorale (Blume), the folk medicine is used for rheumatic pain and it was selected for scientific validation. The 85% methanolic extract obtained from the whole plant of Enicostemma littorale has been assessed for analgesic and anti-inflammatory activity. The analgesic activity has been evaluated by hot plate and tail immersion method and the anti-inflammatory and antioxidant activities are evaluated by Complete Freund’s adjuvant induced arthritic model. The results of the evaluation of analgesic activity in hot plate and tail immersion method revealed that the extract exhibits significant activity at 150 mg/kg body weight and the effect is found to increase dose dependently. In Freund’s adjuvant induced arthritis, Enicostemma littorale is found to decrease the paw volume (15.81%). Significant protection is also observed by elevating antioxidant enzymes. In conclusion, the 85% methanolic extract of Enicostemma littorale possesses significant analgesic and anti-inflammatory activities in Freund’s adjuvant induced arthritic model in rats.

足底注射完全弗氏佐剂致疼痛抑郁共病模型大鼠行为学及单胺类神经递质改变

目的观察足底注射完全弗氏佐剂对大鼠疼痛抑郁行为的影响及海马单胺类神经递质的变化,旨在建立慢性炎性疼痛抑郁共病动物模型。方法将16只8周龄SPF级健康雄性SD大鼠随机分为模型组与对照组,每组8只。模型组大鼠麻醉后通过左后足底注射完全弗氏佐剂100μL,建立慢性炎性疼痛抑郁共病模型大鼠,对照组注射同体积生理盐水。采用Von Frey纤维丝和热辐射刺激仪测量大鼠的疼痛阈值,采用旷场实验、悬尾实验、强迫游泳实验评价大鼠的抑郁行为,采用酶联免疫吸附实验检测大鼠海马组织的5-羟色胺、多巴胺、去甲肾上腺素的含量,采用苏木精-伊红(HE)染色观察大鼠海马区病理改变。结果与对照组相比,模型组大鼠机械缩足阈值及热缩足反射潜伏期在3、7、14 d明显降低(P<0.01);与对照组相比,模型组大鼠旷场实验运动总距离在7、14 d明显减少(P<0.01),中央区停留时长在14 d明显降低(P<0.01);与对照组相比,模型组大鼠悬尾实验不动时间在14 d明显增加(P<0.01);与对照组相比,模型组大鼠强迫游泳实验不动时间在7、14 d明显增加(P<0.05,P<0.01);与对照组相比,模型组大鼠海马中5-羟色胺、多巴胺、去甲肾上腺素含量明显减少(P<0.01)。与对照组相比,模型组大鼠海马组织病理发生改变,神经元形态不规则,排列松散、紊乱,细胞间隙增大,部分细胞核模糊,出现部分神经元固缩、凋亡。结论100μL完全弗氏佐剂足底注射可引起大鼠痛觉过敏、抑郁样行为改变及海马单胺类神经递质明显降低,造成海马病理形态变化,可有效模拟疼痛抑郁共病的表现,是一种可用于慢性炎性疼痛抑郁共病病理机制研究的实验模型。

β-制动蛋白2在炎性痛小鼠脊髓背角的表达及作用

目的:通过建立不同类型的炎性痛模型,观察β-制动蛋白2(Arrb2)在炎性痛小鼠疼痛发展过程中的作用。方法:在WT小鼠和Arrb2^(-/-)小鼠建立由卡拉胶(carrageenan)诱导急性炎性痛模型和弗氏完全佐剂(CFA)诱导慢性炎性痛模型,通过von Frey纤维丝法测定不同时间点的机械缩足反应阈值(PWT);利用Western Blot技术观察Arrb2在急性痛和慢性痛中的表达;在脊髓背角采用鞘内给药的方式,通过von Frey纤维丝法检测小鼠给予μ受体选择性激动剂(DAMGO)后短期和长期的PWT。结果:与WT小鼠相比,Arrb2^(-/-)小鼠在急性痛状态下痛敏恢复程度较慢,而在慢性痛早期表现出显著的抑痛作用。Western Blot结果显示:在急性痛模型下,脊髓背角Arrb2蛋白表达无明显变化,而在慢性痛模型下,Arrb2蛋白表达下降。最后,鞘内注射DAMGO实验表明,在急性痛模型下,敲除Arrb2后鞘内注射DAMGO短期无显著作用,后期可诱发吗啡耐受样痛敏;在慢性痛状态下,敲除Arrb2后鞘内注射DAMGO则在短期和长期均表现出镇痛作用的显著增强。结论:Arrb2在不同类型的炎性痛中表达和作用均有所不同。

宽叶荨麻抗类风湿性关节炎的研究

目的研究宽叶荨麻抗类风湿性关节炎的药理作用,为宽叶荨麻的开发利用提供实验依据。方法将45只大鼠随机分为空白组,模型组,阳性药(雷公藤)组,宽叶荨麻水提物高、中、低浓度组,宽叶荨麻醇提物高、中、低浓度组,通过佐剂性关节炎模型来观察大鼠体重、原发侧和继发侧足跖肿胀度以及关节炎指数的变化。结果与空白组相比,注射弗氏完全佐剂的各组大鼠足跖可见明显肿胀。与模型组相比,宽叶荨麻水提物和醇提物高、中、低浓度组可以不同程度的减轻大鼠原发侧和继发侧足跖肿胀度以及关节炎指数。结论宽叶荨麻水提物高浓度组对大鼠类风湿性关节炎的抑制作用最强,优于阳性药(雷公藤)组,在治疗类风湿性关节炎方面宽叶荨麻具有进一步研究和开发的价值。

链佐星-弗氏完全佐剂制作大鼠糖尿病眼病并发症模型

目的 探讨建立适合于糖尿病眼病并发症及其治疗学研究的病理模型制作方法。方法 雄性Wistar大鼠ip链佐星3 0mg·kg- 1 ,d 2每只ip弗氏完全佐剂(CFA) 0 .1mL ,链佐星和CFA均每周1次,连续3周,血糖稳定升高后给予高脂饲料喂养。酶反应荧光法测定晶状体内山梨醇含量,视网膜铺片以OPTMAS软件分析内皮细胞/周细胞(E/C)比值及微血管密度,普通石蜡切片观察视网膜病理变化,电镜观察晶状体病理变化。结果 造模成功后血糖保持1 6mmol·L- 1 以上达1 2周,模型动物85 %出现明显白内障,晶状体内山梨醇含量明显升高,视网膜毛细血管密度显著增加,E/C比值升高,视网膜、晶状体病理变化明显。结论此模型与临床糖尿病眼病并发症有一定相似之处。

独一味对大鼠佐剂性关节炎防治作用的实验研究

目的:观察独一味对大鼠佐剂性关节炎的防治作用。方法:用完全弗氏佐剂制作大鼠关节炎模型,观察独一味的影响。结果:独一味预防给药可减轻大鼠致炎侧足肿胀,也能抑制对侧足肿胀。与模型组比较,足容积差异有统计学意义(P<0.05)。致炎第19天大鼠关节炎综合评分,独一味组和模型组差异有显著统计学意义(P<0.01),独一味治疗性给药可使大鼠致炎对侧足的肿胀明显减轻。结论:独一味能明显抑制大鼠佐剂性关节炎原发病变和继发病变的形成,对继发病变有较显著的治疗效果,其减轻肿胀的作用可能与抑制炎性组织PGE2的释放有关。

风湿骨病候选复方祛风四味方对大鼠佐剂性关节炎治疗作用及机制研究

目的观察腰痛宁(YTN)有效部位减毒拆方祛风四味方(QFSWF)对佐剂性关节炎(AA)继发性病变、相关炎症因子以及机体免疫功能的影响,探究QFSWF对类风湿性关节炎的可能作用机制及其作为风湿骨病候选中药复方的可行性。方法随机将SD大鼠分为正常对照组,模型组,雷公藤多苷组(LGT,40 mg·kg^(-1)),YTN组(150 mg·kg^(-1)),QFSWF低、中、高剂量组(20,40,80 mg·kg^(-1)),于大鼠左后足跖皮下注射弗氏完全佐剂(CFA,10 mg·m L^(-1))0.1 m L进行模型复制,观察各组大鼠足跖肿胀度及关节炎指数(AI);通过酶联免疫吸附法(ELISA)检测AA大鼠血清中的细胞因子白细胞介素1β(IL-1β)、肿瘤坏死因子(TNF-α)、前列腺素E_2(PGE_2)的水平;摘取大鼠脾脏、胸腺,观察药物对AA大鼠免疫器官的影响。结果与模型组比较,QFSWF组的大鼠脾脏指数及胸腺指数显著降低(P<0.05,P<0.01),体质量显著增加(P<0.05,P<0.01),QFSWF组、YTN组和LGT组的大鼠继发性病变显著受抑制,大鼠血清中的炎症因子IL-1β,TNF-α以及PGE2水平显著降低(P<0.05,P<0.01),且QFSWF组抑制IL-1β,TNF-α释放水平的活性显著优于YTN组(P<0.01)。结论QFSWF通过降低炎症因子水平,提高机体的免疫能力而对佐剂型关节炎产生疗效,总体治疗指标优于YTN,可作为治疗风湿骨病候选中药复方。

四神煎对佐剂性关节炎大鼠细胞因子的影响

目的:通过对大鼠完全弗氏佐剂性关节炎动物模型进行观察,探讨四神煎对该动物模型细胞因子的影响。方法:观察四神煎不同剂量组与雷公藤多苷片对大鼠完全弗氏佐剂性关节炎动物模型IL-1、IL-4、IL-6、IL-8、TNF-α进行观察。结果:四神煎各剂量组均有消肿作用,均可降低炎性细胞因子,抑制作用优于雷公藤多苷片。结论:四神煎治疗类风湿关节炎的机理可能是通过抑制炎性细胞因子实现的。