可溶性鸡Ⅱ型胶原对关节炎大鼠的免疫治疗作用

目的 :考察口服小剂量可溶性鸡Ⅱ型胶原(SCCⅡ )对大鼠佐剂性关节炎 (AA)的免疫治疗作用。方法 :检测脾细胞、肠系膜淋巴结细胞 (MLNCs)和肠派伊尔结细胞 (PPCs)的ConA增殖反应、腹腔巨噬细胞 (PMΦ)和滑膜细胞 (SMCs)产生IL 1和TNFα水平 ,结合观察踝关节继发炎症、胸腺指数等指标变化。结果 :SCCⅡ (0 .0 3、0 .30和 3.0 0mg·kg- 1·d- 1,ig)治疗 (d 1 2～1 8) ,能提升患鼠脾细胞低下的ConA增殖反应 ,进一步抑制MLNCs和PPCs低下的ConA增殖反应 ,显著抑制PMΦ和SMCs产生IL 1和TNFα,明显减轻大鼠AA的炎症反应。结论 :口服小剂量可溶性SCCⅡ对大鼠AA有免疫治疗作用     

霞水母胶原治疗大鼠佐剂型关节炎的研究

目的 探讨霞水母来源的胶原对大鼠佐剂型关节炎的治疗作用.方法 采用完全弗氏佐剂造成大鼠关节炎模型,致炎后大鼠给予霞水母胶原连续灌胃14 d,观察大鼠双后肢关节肿胀情况,及对血清中一氧化氮(NO),超氧化物歧化酶(SOD)、丙二醛(MDA)的影响.结果 口服霞水母胶原可以降低大鼠的双后肢关节肿胀度,降低大鼠血清中NO和MDA含量,提高大鼠血清中SOD活性.结论 霞水母胶原对佐剂型关节炎有较好的治疗作用,其机理可能与降低体内氧自由基水平及过氧化脂质水平有关.     

Relationship between the effect of cyclophosphamide on adjuvant arthritis severity, skin allograft rejection and spleen cell cytotoxic activity in rats

Cyclophosphamide, which has a poor immunosuppressive effect on adjuvant arthritis in rats, evokes an aggravating form of the disease when applied at a single low dose before rats' sensitization with complete Freund's adjuvant. However, cyclophosphamide administered by this method of treatment has no such enhancement effect on skin allograft rejection reaction; on the contrary, the rejection reaction was inhibited. Spleen cell cytotoxic activity against 51-Cr labelled chondrocytes significantly decreased in adjuvant arthritis, while in skin allograft rejection it increased during the latent period before the rejection reaction appeared. The addition of cyclophosphamide to the rats' treatment decreased more strongly spleen cell cytotoxic activity, especially in rats with adjuvant arthritis. We conclude that cyclophosphamide-sensitive spleen cytotoxic cells are playing a dual role in the pathogenesis of these two cell-mediated immunological processes: as immunosuppressive regulatory cells in adjuvant arthritis and as effector cells in skin allograft rejection reaction.     

非诺贝特与吡格列酮对佐剂性关节炎大鼠抗炎作用研究

目的：探讨非诺贝特与吡格列酮对佐剂性关节炎大鼠的抗炎效果。方法24只雄性Lewis大鼠随机分成4组,空白组、模型对照组：给予等量的羧甲基纤维素;非诺贝特组：100 mg · kg－1· d－1、吡格列酮组：30 mg· kg－1· d－1,于造模后开始给药,共给药21 d。大鼠尾静脉皮内注射完全弗氏佐剂每只0 k．1 ml,制备 AA 大鼠模型。关节炎的严重程度是由临床观察（体重,关节炎指数评分,足跟肿胀度）进行评估。骨密度（ BMD）,骨矿物质含量（ BMC）于给药20 d由双能X线骨密度仪测定。应用real-time PCR法检测IL-1β,IL-6和IL-10 mRNA的表达水平。结果与模型对照组相比,非诺贝特组和吡格列酮组关节炎指数评分和足跟肿胀度明显降低（ P ＜0．05）,骨密度和骨矿物质含量明显增加（ P ＜0．05）,IL-1β和IL-6 mRNA的表达水平明显增加（ P ＜0．05）,IL-10 mRNA的表达水平降低（ P ＜0．05）。结论非诺贝特和吡格列酮对大鼠佐剂性关节炎具有一定的治疗作用。     

The effect of histamine on the development of adjuvant arthritis in the rat

Histamine, injected subcutaneously (0.3-10 mg/kg), produced a dose-related inhibition of the primary and secondary inflammation, and the development of the secondary lesions of rat adjuvant arthritis. Histamine was effective when given for short periods around the time of adjuvant administration and could also delay and possibly reverse an established arthritic response. The histamine H1-agonist, 2-(2-pyridyl)-ethylamine, inhibited rat adjuvant arthritis, whereas the histamine H2-agonists, impromidine and dimaprit, failed to affect the response. Metiamide, a histamine H2-antagonist (5 mg/kg), reduced the inflammation in the uninjected hind-paw and the development of secondary lesions. Histamine may have two effects on rat adjuvant arthritis, inhibiting the response via stimulation of H1-receptors and augmenting the response via stimulation of H2-receptors. Since histamine is known to bind to and to alter the reactivity of cells which are involved in the regulation of immune responsiveness, it is suggested that interactions with these cells are responsible for the observed effects of histamine.     

红花注射液对佐剂性关节炎大鼠的免疫调节作用

目的：本课题主要研究红花注射液对佐剂性关节炎大鼠（AA）的免疫调节作用。方法：模型制作第15天,给予动物相应药物治疗。治疗20d后,大鼠心脏采血。取全血做TC亚群计数,留取血清用ELISA法测血清IL-1含量;取大鼠腹腔液涂片,做巨噬细胞吞噬功能测定。结果：在红花注射液的作用下,佐剂性关节炎大鼠的巨噬细胞吞噬指数和吞噬百分率、CD4＋T细胞与CD8＋T细胞比值及血清IL-1含量均显著降低。结论：红花注射液可以调节佐剂性关节炎大鼠过于亢进的免疫自稳功能,其治疗效果与雷公藤甲素相仿。     

伸筋草生物碱对佐剂性关节炎大鼠的抗炎作用及机制研究

目的 探讨伸筋草生物碱对完全弗氏佐剂（CFA）诱导大鼠关节炎的治疗作用及机制。方法 健康SD大鼠48只,随机分为6组,每组8只,即对照组、模型组、依托考昔片（阳性药,1 mg/kg）组及伸筋草生物碱低、中、高剂量（30、60、120 mg/kg）组,除对照组外,其余40只大鼠sc 0.1 mL CFA造模,致炎15 d后,连续ig给药30 d。测定大鼠足趾肿胀率、HE染色后观察造模测踝关节滑膜病理改变;致炎45 d,ELISA法测定血清中白介素-1β（IL-1β）、肿瘤坏死因子-α（TNF-α）水平。结果 与模型组比较,依托考昔片及伸筋草生物碱低、中、高剂量组足趾肿胀率均显著下降（P<0.05、0.01）;中、高剂量伸筋草生物碱明显改善滑膜细胞、巨噬细胞、纤维细胞增生与炎症细胞浸润;与模型组比较,依托考昔片及伸筋草生物碱高剂量组大鼠血清TNF-α水平显著下降（P<0.05）,依托考昔片及伸筋草生物碱各剂量组IL-1β水平均显著降低（P<0.01）。结论 伸筋草生物碱显著抑制CFA诱导关节炎大鼠关节肿胀,改善大鼠踝关节滑膜病变,其作用机制可能与降低体内IL-1β、TNF-α水平有关。     

绿原酸对佐剂性关节炎模型大鼠抗炎作用及机制研究

目的探讨绿原酸对佐剂性关节炎模型动物抗炎作用及机制。方法采用大鼠足跖注射Freund's完全佐剂形成佐剂性关节炎(AA),随机分为空白对照组、模型组、阳性对照组(尼美舒利)、绿原酸低剂量组(25 mg·kg-1)、中剂量组(50 mg·kg-1)和高剂量组(100 mg·kg-1)。观察绿原酸对佐剂性关节炎模型大鼠超敏反应与左右足跖宽度、血清肿瘤坏死因子(TNF-α)、白细胞介素-2(IL-2)、循环免疫复合物(CIC)、超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH-Px)和丙二醛(MDA)的含量。结果绿原酸中剂量组(50 mg·kg-1)、高剂量组(100 mg·kg-1)能够降低含量,升高SOD和GSH-Px水平,比较差异有统计学意义(P<0.05)。结论绿原酸具有抗佐剂性关节炎(AA)的作用,并通过降低TNF-α、IL-2、CIC和MDA含量及提高抗氧化能力发挥作用。     

Humoral and cellular immunologic aspects of adjuvant and collagen arthritis in rats

Systemic and local immunological responses of rats sensitized with either M. butyricum or native type II collagen have been evaluated. In rats exhibiting adjuvant-induced arthritis no antibodies to collagen could be detected. In animals exhibiting collagen-induced arthritis, high antibody titers developed by day 14, and could be correlated with the severity of the arthritis. Delayed type hypersensitivity (DTH) responses were measured by a 5-iodo-2'-deoxyuridine 125-I (125-IUdR) uptake assay. Arthritic scores in rats immunized with collagen were not accompanied by a positive DTH response, whereas adjuvant arthritic rats showed a positive response. T-lymphocyte cellular responses in both adjuvant- and collagen-induced arthritic rats were measured. In neither syndrome were major alterations observed in T-lymphocyte subpopulations. These results provide evidence that adjuvant-induced arthritis and type II collagen-induced arthritis are distinct entities, and that they may be discriminated by the nature of the humoral response.     

克班宁透皮贴剂对佐剂性关节炎大鼠的抗炎作用

目的:考察克班宁制备成透皮贴剂后对佐剂性关节炎大鼠的抗炎作用.方法:将60只雄性Wistar大鼠随机分为6组,分别为正常组、模型组、甲氨蝶呤(MTX)组、克班宁贴剂低、中、高剂量组,每组10只.除正常组外,其余大鼠右后足趾皮下注射0.1mL弗氏完全佐剂(CFA)造模,给药组于腹部脱毛区域给予克班宁透皮贴剂,MTX组腹腔...     

Immunomodulating effect of the novel water-soluble gossypol derivative Mebavin in adjuvant arthritis

Investigation of the effect of mebavin on the model of adjuvant arthritis showed that this drug administered in a dose of 100 mg/kg exhibits immunomodulant and anti-inflammatory activity without negative influence on the nonspecific response of the organism. Combined administration of mebavin with prednisolone provides for a more effective and nontoxic treatment of adjuvant arthritis.     

Therapeutic effect of Kalpaamruthaa,a herbal preparation on adjuvant induced arthritis in wistar rats

The present study was performed in order to establish the efficacy of Kalpaamruthaa (KA), a modified indigenous Siddha preparation in adjuvant induced arthritic rat (AIA) model with reference to mediators of inflammation (lysosomal enzymes) and its effect on proteoglycans. Albino rats of Wistar strain were divided into seven Groups of six animals each. Arthritis was induced to rats by subcutaneous injection of 0.1 ml of Complete Freund’s Adjuvant into the plantar surface of the left hind paw. Group I served as normal control rats receiving 0.5 ml of olive oil as vehicle, Group II arthritic rats served as induced-untreated and Group III (50 mg/kg), Group IV (100 mg/kg), Group V (150 mg/kg), Group VI (200 mg/kg) and Group VII (250 mg/kg) were KA treated rats at different dose levels orally in 0.5 ml of olive oil from 14^th day of adjuvant injection and was terminated on day 28. Animals were then sacrificed on the day 29, blood was collected, liver and kidney were dissected out, washed and 10% homogenates were prepared. The activities of lysosomal enzymes (β-glucuronidase, β-galactosidase, acid phosphatase, β-N-acetyl glucosaminidase and cathepsin-D), aminotransferases (alkaline phosphatase, aspartate and aminotransferases) and levels of plasma protein bound carbohydrate components of glycoproteins were determined and were found to be elevated in arthritic rats when compared to control animals. After administration of KA, the activities of lysosomal enzymes, aminotransferases and protein-bound carbohydrate component levels were significantly normalized. The data obtained evidently indicate that Kalpaamruthaa is effective at the dose of 150 mg/kg b.wt. in AIA and plays an important role in lysosomal membrane stabilization. This was further confirmed by radiological, histological and electron microscopic studies. Received 21 November 2006; revised 6 April 2007; accepted 13 April 2007     

亚油酸及其甲酯对大鼠佐剂性关节炎的治疗作用

目的观察亚油酸和亚油酸甲酯对大鼠佐剂性关节炎的治疗作用。方法用弗氏完全佐剂建立大鼠关节炎模型(AA),观察亚油酸及其甲酯对AA大鼠足肿胀的抑制作用和对血清中IL-1β和TNF-α表达水平的影响。结果亚油酸及其甲酯能显著减轻关节肿胀,并能显著降低血清中IL-1β和TNF-α的含量。结论亚油酸及其甲酯对佐剂性关节炎有一定的治疗作用。     

The therapeutical effect of linoleic acid and methyl linoleate on adjuvant arthritis of rats

目的 观察亚油酸和亚油酸甲酯对大鼠佐剂性关节炎的治疗作用.方法 用弗氏完全佐剂建立大鼠关节炎模型(AA),观察亚油酸及其甲酯对AA大鼠足肿胀的抑制作用和对血清中IL-1β和TNF -α表达水平的影响.结果 亚油酸及其甲酯能显著减轻关节肿胀,并能显著降低血清中IL-1β和TNF -α的含量.结论 亚油酸及其甲酯对佐剂性关节炎有一定的治疗作用.     

佐剂性关节炎大鼠模型的实验研究

目的：改进大鼠佐剂性关节炎(AA)模型制作的实验设计，提高造模成功率。方法：选择影响造模成功率较大的因素，如弗氏完全佐剂(FCA)中的卡介苗(BCG)浓度、FCA注射量、FCA体内注射部位作为研究对象。结果：不同BCG浓度下的最高成功率为78．5％；不同注射量最高成功率为71．9％；不同注射部位最高成功率为70．0％。结论：用含20mg／ml BCG浓度的FCA 0．1ml注射量，后肢足跖皮内注射能明显提高AA大鼠造模的成功率。较以前文献报道的含10mg／ml BCG浓度的FCA 0．05ml注射量，背部多点注射法等有较大的改进。     

Effects of prostaglandin E1 analogue,misoprostol, on the development of adjuvant arthritis in rats

Prostaglandins (PG) E , E and the PGE analogue, misoprostol, have been shown to inhibit T-cell functions and the production by activated monocytes or macrophages of interleukin-1, indicating that these PGs may have potential anti-arthritic activity by suppressing T-cell and monocyte activity. In view of this the potential anti-arthritic effects of the long half-life PG, misoprostol (MPL), were examined in adjuvant arthritic rats under prophylactic and therapeutic treatment regimes. Transcutaneous or subcutaneous MPL given at 200 Μg/kg/day but not at 50 or 5 Μg/kg/day when given 0 to +5 or 0 to + 14 days post-induction inhibited the development of the disease whereas the orally administered drug was without effects. MPL given transcutaneously with oral indomethacin (1 or 2 mg/kg/day) on days +17 to + 30 post-induction produced greater anti-inflammatory effects than with this NSAID alone. MPL given orally in combination with this NSAID did not enhance the anti-inflammatory effects of the latter. MPL 200 Μg/kg given transcutaneously exhibited anti-ulcer activity against indomethacin (30 mg/kg p.o.), naproxen (10 mg/kg i.p.) or piroxicam (5 mg/kg i.p.) induced gastric damage in arthritic rats and this was comparable with that from 100 Μg/kg MPL given orally. These results show that MPL has both unique anti-arthritic effects only when given transcutaneously or parenterally as well as anti-ulcer activity.     

橙皮苷对大鼠佐剂性关节炎的治疗作用及机制

目的研究橙皮苷(hesperidin,HDN)对佐剂性关节炎(AA)大鼠的治疗作用及部分机制。方法用弗氏完全佐剂(FCA)诱导大鼠AA模型;足容积法测量继发侧足肿胀度;MTT法检测刀豆蛋白(ConA)和脂多糖(LPS)诱导的脾淋巴细胞增殖反应;放免法测定脾淋巴细胞产生IL-2的水平以及腹腔巨噬细胞(PMΦ)IL-1,IL-6和TNF-α的水平;酶联免疫吸附测定法(ELISA)测定PMΦ产生IL-10的水平。结果致炎后d12,大鼠继发性关节炎出现,同时灌胃给予不同剂量的HDN(40、80、160mg·kg-1),连续12d,从致炎后d20开始,HDN(80、160mg·kg-1)对AA大鼠继发性炎症有明显抑制作用;HDN各剂量可不同程度地纠正AA大鼠低下的脾淋巴细胞增殖反应和脾细胞IL-2的产生,降低AA大鼠PMΦ产生过高的IL-1,IL-6和TNF-α,同时上调AA大鼠PMΦ低下的IL-10水平。结论HDN对AA大鼠继发性炎症具有治疗作用,其作用机制可能与调节机体异常的免疫功能和维持细胞因子网络平衡有关。     

祛风息痛丸对大鼠佐剂性关节炎的治疗作用

目的观察祛风息痛丸对佐剂性关节炎的治疗作用,为其临床治疗类风湿性关节炎提供实验依据。方法建立佐剂性关节炎大鼠模型,采用玻璃容器法测定大鼠原发性和继发性足爪肿胀度。采用酶联免疫吸附试验测定血清白细胞介素1(IL-1)和肿瘤坏死因子α(TNFα)含量。结果祛风息痛丸0.26,0.78和2.34g.kg-1连续灌胃3d显著抑制佐剂性关节炎大鼠原发性足爪肿胀,对致炎后18h的肿胀抑制率分别为21.4%,36.8%和65.0%。同剂量祛风息痛丸连续灌胃30d对佐剂性关节炎大鼠继发性即非致炎侧关节肿胀具有明显的抑制作用,并可明显降低多发性关节炎病变评分,中、大剂量可明显降低血清IL-1和TNFα含量。结论祛风息痛丸对实验性佐剂性关节炎具有治疗作用。     

Effects of prenatal exposure to combination of acetaminophen,isopropylantipyrine and caffeine on intrauterine development in rats

The common effects of acetaminophen (paracetamol), isopropylantipyrine (propyphenazone) and caffeine on fetal development were examined in rats. The mixture was given in Tween 80 solution once daily, in a constant proportion of 5:3:1, during days 8-14 of gestation in three different doses. Dose S1 - 3.5 mg/kg acetaminophen, 2.14 mg/kg isopropylantipyrine, 0.7 mg/kg caffeine. Dose S2 was 10 times higher, and S3 100 times higher than dose S1. On day 21 of gestation, the dams were sacrificed and the fetuses were removed. The corpora lutea, resorptions, live and dead fetuses were counted. The pre- and postimplantation mortality were calculated. The weight of fetuses and placentas, and the length of fetuses and their tails were measured. Two-thirds of each litter was processed for Alizarin Red S staining. The remaining third was fixed in Bouin's solution for subsequent visceral examination by using modified Wilson's technique. A significant decrease in body weight in S1 group, and fetal length and placental weight in group S3 were recorded. A significant increase in tail length in group S2 was observed. The number of corpora lutea, fetuses, resorptions, preimplantation and postimplantation mortality did not exhibit any significant difference. Nonsignificant incidence of fetal anomalies was found.