柴胡多糖的免疫药理作用

小鼠ip柴胡多糖(BCPS)可显著增加脾系数、腹腔巨噬细胞吞噬百分数及吞噬指数和流感病毒血清中和抗体滴度,但不影响脾细胞分泌溶血素。BCPS对正常小鼠迟发超敏反应(DTH)无作用,但可以完全及部分恢复环磷酰胺(CY)或流感病毒对小鼠DTH反应的抑制。BCPS明显提高ConA活化的脾淋巴细胞转化率及天然杀伤细胞的活性。本实验结果表明BCPS能提高小鼠体液和细胞免疫功能,并使免疫抑制状态有一定程度的恢复。     

免疫增强剂N-CWS体外抗菌作用

目的 考察N-CWS体外抗菌作用.方法 行腹腔注射N-CWS免疫小鼠,检测N-CWS腹腔注射给药对小鼠腹腔巨噬细胞(Mφ)的影响及Mφ对白色念珠菌和分支杆菌的吞噬水平.结果 N-CWS激活了的Mφ体外吞噬能力显著提高,对白色念珠菌和分支杆菌均有一定的抑杀作用;结论 N-CWS能增强机体免疫功能,具有抑杀微生物作用.     

北沙参粗多糖的提取及对阴虚小鼠的免疫调节作用

目的研究北沙参粗多糖(GLP)的滋阴和免疫调节作用。方法提取GLP,制备阴虚小鼠模型,观察对小鼠体重变化、脾脏抗体生成细胞(AFC)、迟发型超敏反应(DTH)和腹腔巨噬细胞吞噬功能的影响。结果GLP可使阴虚小鼠体重明显增加;亦能显著增加阴虚小鼠脾脏AFC的数量,增强DTH反应,而对腹腔MΦ的吞噬百分率和吞噬指数无明显影响。结论GLP具有滋阴补虚作用,可增强体液免疫和细胞免疫功能。     

野玫瑰根煎剂对老龄小鼠免疫功能的恢复作用

本文研究了玫瑰根煎剂对老龄小鼠免疫功能的影响。结果表明,野玫瑰根煎剂明显地增强老龄小鼠的血清溶菌酶活性、腹腔巨噬细胞的吞噬功能、血清抗绵羊红细胞特异性抗体效价与脾脏抗体形成细胞的 OD 值等体液免疫功能和外周血淋巴细胞 ANAE 阳性百分率与 E——花环细胞的百分率细胞免疫功能,对老龄小鼠降低了的免疫功能具有恢复作用。     

聚酯型儿茶素对小鼠的免疫调节作用

目的 :研究聚酯型儿茶素对正常小鼠及实验性免疫功能低下小鼠的影响。方法 :选用二硝基氟苯 (DNFB)致小鼠迟发型超敏反应 (DTH)模型、小鼠腹腔巨噬细胞 (PMΦ )吞噬鸡红细胞模型以及血清溶血素生成法 (HC50) ,分别观察对正常小鼠特异性细胞免疫、非特异性细胞免疫和体液免疫功能的影响。以环磷酰胺腹腔注射15mg/(kg·d)×4d造成免疫功能低下的模型 ,采用DTH、碳粒廓清法及血清溶血素生成法测定有关免疫指标。结果 :聚酯型儿茶素 (50、100、200mg/(kg·d)×7d)可明显增强正常小鼠的耳片肿胀度、腹腔巨噬细胞吞噬功能及血清溶血素生成 ,明显提高环磷酰胺所致免疫低下小鼠的DTH反应、碳粒廓清K和α值及HC50 值。结论 :聚酯型儿茶素对正常及免疫功能低下小鼠的细胞免疫和体液免疫均具有增强作用。     

芍芪多苷对迟发型变态反应小鼠细胞免疫功能的影响

目的探讨在不同免疫状态下,芍芪多苷(Shaoqid-uogan,SQDG)对迟发型变态反应(DTH)小鼠细胞免疫功能的作用。方法采用2,4-二硝基氯苯(DNCB)诱导小鼠DTH模型及环磷酰胺(Cy)诱导小鼠免疫低下或亢进模型。SQDG予小鼠连续灌胃7d。MTT法检测ConA诱导的小鼠胸腺T淋巴细胞增殖,小鼠胸腺细胞增殖法检测ConA诱导的小鼠胸腺T淋巴细胞培养上清中白细胞介素2(IL-2)的活性。结果在小鼠DTH模型,SQDG(120mg·kg-1)可降低耳肿胀、胸腺指数、ConA诱导的胸腺T淋巴细胞增殖反应以及ConA诱导的胸腺T淋巴细胞培养上清中IL-2的活性。DNCB初次致敏当日腹腔注射(ip)Cy(150mg·kg-1)可以造成DTH低下模型,致敏前3 d ip Cy(250mg·kg-1)可造成DTH亢进模型;SQDG(60和120mg·kg-1)能明显上调DTH低下模型小鼠耳肿胀、ConA诱导的小鼠胸腺T淋巴细胞增殖及小鼠胸腺T淋巴细胞培养上清中IL-2的水平;且能明显下调DTH亢进模型小鼠上述指标的水平。结论SQDG对小鼠细胞免疫具有双向调节的作用。     

精制麦饭石对小鼠免疫功能的影响

一、小鼠腹腔巨噬细胞(Mφ)吞噬功能测定:采用雌性昆明小鼠,体重22～24g,依照 Mφ体外吞噬鸡红细胞的方法进行。实验共设三组:1.给药组:于一周内6次灌服精制麦饭石(由蓟县麦饭石提取)15mg/kg/d;2.对照组:依同样方式单     

RX抗炎免疫作用的研究

目的:Rx500,1000mg/kg.d×1 ip抑制巴豆油所致小鼠耳廓肿胀;方法:显著抑制醋酸所致小鼠腹腔毛细血管通透性增高,其中1000,2000mg/kg.d×1组抗炎作用呈现良好量效关系,不影响小鼠RES对碳粒的吞噬功能;结果:400mg/kg.d×1 ip可显著降低吞噬指数:结论:Rx2000,4000mg/kg.d×1 ip显著抑制DNCB所致小鼠迟发性超敏反应,对正常小鼠胸腺有显著抑制作用,并降低DNCB所致敏小鼠的胸腺指数,且呈良好量效关系.     

土龙粉对小鼠免疫功能的影响

目的探讨土龙粉对小鼠免疫功能的影响。方法用土龙粉灌胃小鼠7d。通过二硝基氟苯(DNFB)诱导迟发型变态反应(DTH)试验,血清溶血素抗体生成实验和碳粒廓清实验考察土龙粉对小鼠免疫功能的影响。结果土龙粉能明显增加小鼠胸腺、脾的重量,促进DTH作用,显著提高血清溶血素水平,促进单核-巨噬细胞吞噬能力,加快碳粒廓清速率。结论土龙粉对小鼠的免疫功能有明显的增强作用。     

人参皂苷Rg1及其肠内菌代谢产物Rh1对小鼠免疫细胞功能的影响

目的初探人参皂苷Rg1及其肠内菌代谢产物Rh1对正常小鼠免疫功能的影响.方法用Rh1与Rg1分别处理脾T细胞,B细胞及腹腔巨噬细胞(Mφ);MTT比色法测T和B细胞增殖能力;中性红比色法测Mφ的吞噬功能;Griess法测Mφ释放NO的水平.结果 Rh1能促进脾细胞增殖、下调Con A诱导的T细胞增殖;Rh1与Rg1对LPS诱导的B细胞增殖均无明显作用;Rg1和Rh1能提高Mφ的吞噬能力和促进NO的释放.结论 Rg1及其代谢产物Rh1可共同作用于T细胞和Mφ而产生免疫调节作用.     

白芍总甙对免疫应答的调节作用

白芍总甙(TGP)200mg/kg/d ig×8d对小鼠迟发型超敏反应(DH)有增强作用。TGP5mg/kg/d ip×8d(或5d)对正常小鼠DH的影响并不恒定,或呈增强或呈抑制或无明显作用;对环磷酰胺诱导的DH增强和抑制都有明显对抗作用,但对地塞米松诱导的小鼠DH抑制无明显的影响。TGP5mg/kg/d ip×4d不影响正常小鼠抗体的生成量,但能使环磷酰胺诱导免疫低下小鼠的抗体生成量恢复到正常对照水平。TGP40mg/kg/d ig×3d能促进小鼠腹腔巨噬细胞的吞噬功能。上述结果表明TGP对小鼠免疫应答具有调节作用。     

黄精多糖对免疫抑制小鼠的免疫功能的影响

目的研究黄精多糖对免疫抑制小鼠免疫功能的影响。方法小鼠ip给予环磷酰胺,建立免疫抑制模型,以黄精多糖低、中、高剂量（100、400、800mg/kg）ig给药,测定各试验组小鼠血清中SOD活性、MDA水平、血清溶血素、免疫器官指数、耳肿胀度,以及吞噬细胞的吞噬能力。结果与模型组相比,黄精多糖给药组上述免疫指标均有不同程度的改善,免疫抑制小鼠的脏器和溶血素指数显著提高（P〈0.05）;其中高剂量给药组血清中SOD活性恢复显著（231.71±7.75）,MDA水平显著降低（6.20±0.65）,达到或超过了正常小鼠水平。小鼠吞噬能力也有所提高,一定程度上缓解了炎症。结论黄精多糖能有效改善由环磷酰胺所致免疫抑制小鼠的免疫功能,可开发为肿瘤放化疗患者的辅助治疗剂。     

Effect of farmorubicin both free and associated with poly(butylcyanoacrylate) nanoparticles on phagocytic and NK activity of peritoneal exudate cells from tumor-bearing mice

The effect of Epirubicin (farmorubicin, FR), either free or associated with poly(butylcyanoacrylate) nanoparticles (PBCN) upon the phagocytic and natural killer (NK) activity of peritoneal exudate cells (PECs) harvested from Lewis lung carcinoma (LLC)-bearing-mice was investigated. Phagocytic and NK activity were tested 72 and 96 h, respectively after the last four intraperitoneal (i.p.) injections of the tested compounds have been administered to the mice. Phagocytic activity was evaluated in vitro by phagocytic index and ingestion capacity using a phagocytic assay. NK activity was evaluated in a direct cytotoxic test, in which PECs were used as effector cells while human erythroleukemic K-562 cells were used as target cells. The phagocytic activity of PECs, harvested from tumor-bearing mice, was stimulated after treatment with FR free, FR associated with polymer nanoparticles and with unloaded PBCN. The NK activity of PECs was strongly stimulated by unloaded PBCN. FR both free and encapsulated into the polymer matrix during the polymerization of n-butylcyanoacrylate (n-BCA) stimulated the NK activity of PECs, while FR adsorbed onto nanoparticles restrained it. These results suggest that the association of FR with nanoparticles modifies selectively its immunomodulating ability without producing any significant immunological disturbances. The toxicity of some of FR polymer forms towards PECs, displaying NK activity, probably comes from the enhanced local drug concentration on the membrane surface of the immune cells. However, it is insufficient to preclude the use of nanoparticles as drug delivery system.     

防芪汤及其组方对免疫抑制小鼠免疫功能的影响

目的:探讨防芪汤及其组方对免疫抑制小鼠免疫功能的影响。方法:建立受氢化可的松(HC)免疫抑制动物模型,应用防芪汤及其组方对免疫抑制小鼠进行治疗,观察其对免疫抑制小鼠免疫功能的影响。结果:防芪汤可明显增强免疫抑制小鼠腹腔巨噬细胞(MΦ)的活性和红细胞C_3b受体(RBC—C_3bR)花环形成率、脾细胞产生抗体的能力及白介素-2(IL—2)的活性,增强红细胞免疫复合物(RBC-IC)花环形成率和脾细胞增埴反应。黄芪配伍水煎液能促进免疫抑制小鼠的腹腔MΦ的活性和IL—2的活性,增强脾细胞产生抗体的能力,但作用不及防芪汤;防已配伍水煎液能促进免疫抑制小鼠脾细胞产生抗体,作用与黄芪配伍水煎液相近。结论:防芪汤能增强受HC免疫抑制小鼠的各项免疫功能。     

Effect of Bisphenol A on non-specific immunodefenses against non-pathogenic Escherichia coli

We examined the effect of Bisphenol A (BPA) on non-specific defense in experiments with a non-pathogenic bacterium, Escherichia coli K-12. Mice were pretreated by a subcutaneous route with BPA (5 mg/kg body weight) for 5 consecutive days in the back and 3 days after the last treatment, injected by the intra-peritoneal route with E. coli K-12. BPA pretreatment caused a decrease of T and B cell populations in the spleen of treated mice. After the challenge with E. coli, the activity to eliminate bacteria from the peritoneal cavity in the early stage of infection (within 24 h) was diminished compared with non-treated mice. BPA induced the migration of excess neutrophils into the peritoneal cavity, but reduced their phagocytic activity against E. coli K-12. For macrophages and lymphocytes, BPA reduced the population in the spleen and the accumulation at infection foci. The production of MCP-1 was enhanced by BPA treatment, but that of IL-6 was suppressed after infection. These results suggest that BPA possessed immunotoxicity and reduced the non-specific host defense as an acute toxicity.     

Pharmacological study on Naja naja kaouthia Lesson. III. Effects of 50% ethanolic extracts from liver and gall bladder on phagocytic activity of mouse reticuloendothelial system]

Effects of 50% ethanolic extracts from the liver and the gall bladder of Naja naja kaouthia Lesson (COB-L or COB-G) were studied on the phagocytic activity of a mouse reticuloendothelial system. The clearance-rate of carbon was shortened by the oral administration of COB-L or COB-G (50 or 200 mg/kg). COB-L or COB-G promoted the phagocytosis of latex by peritoneal macrophages (M phi). Furthermore, effects of these extracts on the peritoneal M phi were biochemically investigated using in vitro experimental models. The activities of two lysosomal enzymes, acid phosphatase and beta-glucuronidase, and that of lactate dehydrogenase in the peritoneal M phi were enhanced when the M phi were cultured with COB-L or COB-G (10-100 micrograms/ml) for 4 d. In addition, the consumption of glucose in the culture media by the M phi was also enhanced by culturing the media with COB-L or COB-G. When COB-L and COB-G were given orally immediately before and 16 h after the application of picryl chloride (PC) or sheep red blood cell (SRBC), these extracts at a dose of 200 mg/kg did not show any inhibitory effects on the swelling by picryl chloride-inducing contact dermatitis (PC-CD) and by sheep red blood cell delayed type hypersensitivity (SRBC-DTH) in mice. However, these extracts inhibited the immunosuppression with the SRBC 1 x 10(9) cells priming and with the frozen and dried ascites of Ehrlich carcinoma-bearing mice containing immunosupressive substances (EC-sup). These results suggest that COB-L or COB-G biochemically activates the mouse peritoneal M phi, and promotes the phagocytic activity of the M phi and the interaction between M phi and T cell.     

百多宁乳剂对荷S_(180)肉瘤小鼠免疫功能的影响

目的研究百多宁乳剂对荷S180肉瘤小鼠免疫功能的影响。方法建立小鼠体内荷S180肉瘤模型,以脾指数、胸腺指数、炭粒廓清指数、吞噬系数以及其对脾脏T、B淋巴细胞增殖能力作为免疫学指标,考察百多宁乳剂对荷S180肉瘤小鼠免疫功能的影响。结果静脉给予荷S180小鼠百多宁乳剂1、2 g.kg-1,7 d后能够显著提高其脾指数、炭粒廓清指数、吞噬系数,作用强于相同剂量的康莱特和鸦胆子;而对其胸腺指数则影响不大。同时,BDN既能够直接促进小鼠脾淋巴细胞增殖作用,又能协同促进刀豆蛋白A、脂多糖诱导的脾T、B淋巴细胞增殖。结论百多宁乳剂能够显著提高荷S180肉瘤小鼠的免疫能力。     

太子参总皂甙药理作用的初步研究

太子参总皂甙对小鼠抗疲劳、耐缺氧、耐低温有明显的作用。太子参总皂甙能增加小鼠免疫器官的重量,对小鼠网状内皮系统(RES)吞噬功能有明显的激活作用,对小鼠免疫后血清中溶血素的生成有一定的促进趋势。     

Tumor cytotoxicity of peritoneal macrophages induced by OK-432

In the present study we investigated the enhancement of cytotoxicity of peritoneal macrophages induced by OK-432. Rats received an i.p. injection of OK-432 at doses of 0.1, 0.5 or 1.0 KE/rat. Two days later, rats were sacrificed and peritoneal macrophages were isolated. Then the number of macrophages was counted, and the macrophages were analyzed for their lactic dehydrogenase (LDH) activity, acid phosphatase (ACP) activity, phagocytic activity, secretion of nitric oxide (NO) and cytotoxicity. The number of peritoneal macrophages, the activity of LDH and ACP, phagocytic activity, NO secretion, and cytotoxicity were increased with the increasing doses of OK-432. The results suggested that OK-432 enhanced tumor cytotoxicity of peritoneal macrophages by three steps. The first step is to attract a great number of macrophages into the peritoneal cavity. The second step is to enhance the phagocytic and eliminating function of these macrophages. The last step is to increase the non-contact cytotoxicity of macrophages.     

沙棘总黄酮对小鼠免疫功能的影响

沙棘总黄酮(TFH)是沙棘有效成分。能增强小鼠特异和非特异免疫功能,对小鼠血清溶菌酶、吞噬功能、总补体含量,都有增强的作用;促进抗体生成,使血清抗体水平升高,并且增加免疫功能低下者的水平。血液T细胞比例和SRFC的脾细胞都增加,同时,ConA激活的淋巴细胞增殖增强。这些结果表明沙棘总黄酮有明显增强作用。