Therapeutic Efficacy of Quinapyramine Sulphate with Freund＇s Complete Adjuvant in Wistar Rats Infected with Trypanosoma Congolense

Therapeutic efficacy of QS （quinapyramine sulphate） and FCA （Freund＇s complete adjuvant） combination was studied. The aim of the study was to evaluate therapeutic efficacy of QS using FCA in Trypanosorna congolense infection. GrouPs treated with QS and FCA had parasite disappeared in peripheral circulation 2 days pi, relapse was observed one week later. Effect of treatment on rectal temperature shows no significance （p 〈 0.05）, normalization of rectal temperature occurred in QS and FCA treated groups （34.1℃） than untreated （42.8 ℃）, QS （37.4 ℃） and FCA （35.92 ℃） treated groups. Mean body weight was significant （p 〈 0.001） in QS and FCA, QS, and FCA groups. Packed cell volume and hemoglobin concentration for untreated groups were lower, but increased in QS, FCA, QS and FCA treated groups, indicating anemia amelioration. White blood cell counted in untreated, QS and FCA treated groups showed no significance （p 〈 0.05）, however, there was leukocytosis due to lymphocytosis in QS and FCA treated group （6.79 × 10^3/μl） compared with untreated and other groups. There was comparative decrease in serum liver enzymes in QS and FCA treated group than other groups. Therefore, QS at lower recommended dose with FCA may enhance efficacy of QS in trypanosomiasis.

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。

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.

EFFECT OF ELECTROACUPUNCTURE ON THE IMMUNOREACTIVITY OF FOCAL CUTANEOUS μ-OPIOID RECEPTOR IMMUNOREACTION-POSITIVE FIBERS IN ADJUVANT ARTHRITIC RATS

Objective：To study the effect of μ-opioid receptor （MOR） expression in the inflammatory skin tissue and the effect of electroacupuncture （EA） on the topical immunoreaction （IR） of MOR positive fibers in adjuvant arthritic （AA） rats. Methods： A total of 48 SD rats were randomized into control （n = 8）, model （n = 10）, focus-side-EA （n = 10）, non-acupoint-EA （n = 10）, and healthy-side-EA （ n = 10） groups. AA model was established by subcutaneous injection of complete Freund＇s adjuvant （CFA, 50 μL） into the left hind paw. EA （4-16 Hz, 0.5-1.5 V） was applied to “Huantiao” （环跳 GB 30） and“Yanglingquan” （阳陵泉 GB 34） on the focus or healthy side and non-acupoints for 30 min. Non-acupoints used were the two sites 5 mm to GB 30 and GB 34 on the healthy side. The topical MOR IR-positive fibers in the dermal and subcutaneous tissues of the focus was stained with immunohistochemical method. The severity of pain was detected by foot （anklejoint）-bending test. Results： Compared with model group, the “foot-bending test” score decreased significantly in focus-side-EA group on the 9^th and 11^th day （P〈 0.05） and in non-acupoint-EA group on the 8^th, 9^th and 11thd after injection of CFA （P 〈 0.05）, indicating that EA of bilateral GB 30 and GB 34 and non-acupoints all can relieve pain. From the 13^th day on, no significant differences were found in “foot-bending test” scores among the 3 EA groups and model group （P 〉0.05）. In comparison with control group, the area values of MOR IR-positive nerve fibers in the focus tissue were significantly higher in 3 EA groups （P 〈 0.05）. The area values of MOR IR-positive nerve fibers in the focus in model group and 3 EA groups were significant higher than that in control group （P〈 0.05）. Compared with model group, the area values of MOR IR-positive fibers in focus-side-EA group and healthy-side-EA group increased significantly （P 〈 0.05）; while those of MOR IR-positive fibers in non-acupoint-EA group and healthy-side-EA group were significantly lower than that in focus-side-EA group （ P 〈 0.05 ）, and no significant differences were found among model group, healthy-side-EA group and non-acupoint-EA group in the area of MOR IR-positive fibers （P 〉0.05）, indicating a stronger effect of EA of acupoints on the focus side. Conclusion： EA of GB 30 and GB 34 can relieve inflammatory pain and up-regulate the expression of MOR IR-positive fibers in the focal skin tissues in AA rats, exerting anti-inflammatory and analgesic effects.

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。

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.

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.

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.

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。

5－Fu佐剂包裹物的抗肿瘤作用的实验研究

本文作了福氏完全佐剂（Ｆｒｅｕｎｄ’ｓｃｏｍｐｌｅｔｅａｄｊｕｖａｎｔ，ＦＣＡ）包裹５－Ｆｕ的抗肿瘤作用的实验研究。在对小鼠Ｓ１８０肿瘤（腹水型），ＥＡＣ肿瘤（腹水型）及Ｈ２２肝癌（腹水型）荷瘤鼠的治疗实验中，一次性腹腔注射２ｍｇ～６ｍｇ的５－Ｆｕ（相当于７０公斤人给予７７８～２３３４ｍｇ的剂量）均不能显著延长荷瘤鼠的存活期，盐水ＦＣＡ亦无治疗作用，而５－ＦｕＦＣＡ却显示出显著的治疗效果。４次实验，５－ＦＵ－ＦＣＡ治疗组荷瘤鼠平均存活期３０．６天～４８．３天，均显著长于同次实验的各对照组，且每次实验都有２／８至３／８的荷瘤鼠可完全治愈。

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。

5－Fu佐剂包裹物的抗肿瘤机理的实验研究

本文较系统地作了福氏完全佐剂（Ｆｒｅｕｎｄ＇ｓｃｏｍｐｌｅｔｅａｄｊｕｖａｎｔ，ＦＣＡ）包裹５－Ｆｕ的抗肿瘤机理的实验研究。ＦＣＡ包裹５－Ｆｕ相的对包封率平均为：８４．５％。５－Ｆｕ－ＦＣＡ体外缓释试验结果和Ｗｉｓｔａｒ大鼠体内５－Ｆｕ及５－Ｆｕ－ＰＣＡ吸收试验均表明：５－Ｆｕ用ＦＣＡ包裹后，在体内外具有缓慢释放的作用。５０～２００μｇ浓度的５－Ｆｕ在不同作用时间里对肿瘤细胞增殖抑制率随作用时间延长而增加，统计三次实验结果（对Ｈ＿（２２）肝癌细胞），５－Ｆｕ２００μｇ／ｍｌ作用１０分钟对肿瘤细胞增殖抑制率为３４．６６±６．０２；５０μｇ／ｍｌ作用２４小时的抑制率为６１．３５±７．１７。两者比较差别显著（Ｐ＜０．０８）。结果提示：在肿瘤局部低浓度５－Ｆｕ的持续存在，在一定情况下，对肿瘤的抑制作用更强。

杨梅黄酮对炎性痛大鼠的外周镇痛作用

目的研究杨梅黄酮对炎性痛大鼠的外周镇痛作用及机制。方法采用大鼠左侧后肢足底中心皮下注射完全弗氏佐剂(complete Freund's adjuvant,CFA)建立慢性炎性痛模型。检测给予杨梅黄酮前后大鼠热缩足反射潜伏期(thermal withdrawal latency,TWL)的改变。电生理学方法分析杨梅黄酮对背根节神经元放电频率及电压依赖性钾电流的影响。结果大鼠左侧足底皮下注射CFA致炎后,TWL明显降低(P<0.05),腹腔注射50、500 mg·kg-1杨梅黄酮使CFA组大鼠TWL明显升高(P<0.05),电流钳记录显示杨梅黄酮抑制背根节小神经元的放电频率(P<0.01),且该抑制作用是通过增加钙依赖性钾通道电流(P<0.05)产生的。结论杨梅黄酮通过增加背根节神经元钙依赖性钾电流,抑制神经元兴奋性而发挥外周镇痛作用。

空肠弯曲杆菌与弗氏完全佐剂诱导系统性红斑狼疮样小鼠模型的建立

目的建立系统性红斑狼疮小鼠模型。方法利用空肠弯曲杆菌(CJ-朝1株)弗氏完全佐剂建立了系统性红斑狼疮模型(SLE)小鼠模型,并检测了淋巴细胞转化指数、dsDNA、器官组织病理切片、血清TNF-α和MMP-9。结果经过初次免疫和再次免疫后模型小鼠体重明显减轻,状态比较差。淋巴细胞转化指数增加,dsDNA水平明显增高,器官组织病理有炎症改变,血清TNF-α和MMP-9的水平明显增高。结论该模型具有系统性红斑狼疮的某些症状,为SLE的研究提供了的实验资料。

桂枝芍药知母汤对免疫性关节炎大鼠TNF-α与RANKL表达的影响

目的:观察桂枝芍药知母汤对免疫性关节炎大鼠血清中TNF-α与关节滑膜组织RANKL表达的影响,并初步探讨其治疗机制。方法:以弗氏完全佐剂诱导产生免疫性关节炎模型,用不同剂量桂枝芍药知母汤(GSZ汤20.6 g/kg、10.3 g/kg)给模型动物灌胃用药,观察用药后动物血清TNF-α水平与致炎对侧膝关节滑膜组织RANKL表达。结果:桂枝芍药知母汤用药4周后,可明显增加模型大鼠体重增长速度,减轻关节肿胀程度(P<0.05 orP<0.01);使模型大鼠血清TNF-α水平降低(P<0.01)以及滑膜组织RANKL表达下降(P<0.01),本实验条件下,GSZ汤20.6g/kg剂量时的疗效与MTX相当。结论:桂枝芍药知母汤对免疫性关节炎大鼠有治疗作用,其机制可能与抑制TNF-α分泌,降低RANKL表达有关。

不同剂量弗氏完全佐剂对类风湿关节炎模型大鼠复制的影响

目的观察不同剂量的弗氏完全佐剂对类风湿关节炎(Rheumatoid arthritis,RA)模型复制的影响,探讨RA模型复制中弗氏完全佐剂的最佳注射量,以期为RA的实验研究提供较好的模型复制方法。方法采用"病证结合"复合佐剂性关节炎模型复制方法,即"风、寒、湿"环境因素+弗氏完全佐剂的模型复制方法,观察不同注射量的弗氏完全佐剂对RA模型复制的影响。结果 0.1mL模型复制组有自愈的趋势;0.15mL模型复制组大鼠体质量、跖围改变呈进行性下降趋势,X线可见骨质破坏情况较贴近临床患者骨质的改变;0.2mL模型复制组骨质呈粉碎性破坏。结论 0.15mL注射量可能是RA模型复制中的最佳注射量。

外周肥大细胞参与炎性大鼠痛觉过敏的机制

目的研究完全弗氏佐剂(CFA)所致炎性痛大鼠模型中炎症局部肥大细胞(MCs)的表达,探讨MCs在炎性痛中的可能作用机制。方法SD大鼠70只,随机分为A、B、C、D4组(n=8、8、27、27),于右后肢踝关节外侧皮下分别注射0.9%生理盐水(A、C组)或0.1%CFA(B、D组)50μl。A、B组用热敏测痛法测定注射生理盐水或CFA前及注射后1、4、12h及1、3、7、9、14d时大鼠热缩足反射潜伏期(TWL);C、D组在上述时间点取注射局部组织用甲苯胺蓝法染色MCs并观察MCs的数目和形态学变化。结果(1)B组TWL在4h时与A组相比,显著降低,差异有高度统计学意义(P<0.01),12h时为最低点,TWL下降62%,持续3d后逐渐恢复,14d时基本恢复至基础水平(P>0.05)。(2)与C组相比,D组MCs总数在1h时显著上升,在7d时最多,14d时仍显著高于C组同时点,差异均有高度统计学意义(均P<0.01);脱颗粒MCs数在1h时明显增多(P<0.01),12h时达到高峰,1d后渐降,14d时基本正常(P>0.05);镜下见D组MCs胞体增大,细胞多呈不规则状。结论CFA能诱导大鼠产生为期2周的炎性痛,MCs通过聚集和脱颗粒启动并参与炎性痛觉过敏的发生和维持。

问荆合剂对类风湿性关节炎模型大鼠血清TNF-α的影响

目的探讨问荆合剂对类风湿性关节炎(rheumatoid arthritis,RA)动物模型的疗效及其作用机制。方法采用弗氏完全佐剂建立实验性大鼠RA动物模型,将50只大鼠按体重随机分为5组(空白对照组、模型对照组、问荆合剂组、甲氨碟呤组和问荆合剂加甲氨碟呤组)。观察其治疗前后肿瘤坏死因子-α(TNF-α)的变化。结果各治疗组的血清TNF-α水平有显著的降低,以上各组内治疗前后比较有显著性差异(P<0.01);各治疗组与模型对照组比较均有显著性差异(P<0.01);问荆合剂加甲氨碟呤组与问荆合剂组、甲氨碟呤组比较有显著性差异(P<0.05)。结论问荆合剂能明显下调RA模型大鼠前炎性因子TNF-α水平。问荆合剂对TNF-α的调控作用是其治疗RA的作用机制之一。

大鼠实验性变态反应性脑脊髓炎模型研究

目的用豚鼠脊髓匀浆诱发实验性变态反应性脑脊髓炎(EAE)大鼠模型。方法应用豚鼠脊髓匀浆加完全弗氏佐剂和百日咳杆菌免疫Wistar大鼠。结果免疫后8～14d大鼠发病,发病率为67%,光镜下病理学证实发病大鼠脑和脊髓内具有典型的脱髓鞘改变和炎性细胞浸润。电镜下也可见到髓鞘结构破坏和神经元轻微改变。结论以豚鼠脊髓匀浆为抗原免疫Wist-ar大鼠可诱发EAE,具有发病率较高、费用低廉、模型稳定的特点,可以作为研究多发性硬化的动物模型。

高压氧治疗对小鼠慢性炎症性疼痛和组织水肿的影响

目的:研究连续高压氧(repetitive hyperbaric oxygen,HBO)处理对完全弗氏佐剂(complete Freund′s adjuvant,CFA)诱导的小鼠慢性炎症性疼痛和足底水肿的影响。方法:采用小鼠足底注射CFA诱导小鼠慢性炎症性疼痛。在注射CFA后1 h或3 d每天将小鼠置于高压氧舱中(纯氧,2个大气压,持续5~8 d)1 h,3 h后行为学检测小鼠热痛觉过敏和炎症爪体积;分别在CFA注射后的1、3、7 d取足底皮肤,用Western Blot检测p-c-Jun N末端激酶(c-Jun N-terminal kinase,JNK)、p-细胞外信号调节激酶(extracellular signal regulated kinase,ERK)、瞬时受体电位通道(transient receptor potential channels,TRPV1)的表达。结果:CFA诱导小鼠产生慢性炎症性疼痛和注射爪的水肿;高压氧处理显著缓解热痛觉过敏,并减轻了CFA引起的足部肿胀。而且,CFA诱导足底皮肤中p-ERK、p-JNK和TRPV1在1、3、7 d均显著升高;高压氧处理后的3 d和7 d有效抑制了pERK、pJNK和TRPV1的表达。结论:重复高压氧处理可能通过抑制ERK和JNK的激活以及TRPV1的表达有效缓解慢性炎症性疼痛和局部组织水肿,为临床上采用高压氧镇痛提供了依据。