弓形弓形虫抗原检测方法的研究

本研究制备了与多种寄生虫抗原无交叉反应的抗弓形虫单抗B6C3和兔抗弓形虫多抗,多抗为捕获抗体,单抗为检测抗体,建立单-多抗夹心ELISA方法。用亲和素连接分别标记生物素的抗体和酶,建立ABC(avidin-biotin-peroxidase complex)-ELISA[D1]方法。同样用亲和素连接标记生物素的抗体和DNA片段,利用PCR反应对DNA片段巨大的扩增能力,提高检测灵敏度,发展单-多抗夹心ELISA为免疫-PCR(I-PCR)检测弓形虫抗原。单-多抗夹心ELISA检测弓形虫抗原最低浓度为0.6μg/ml,ABC-ELISA检测最低浓度为0.075μg/ml。I-PCR检测最低浓度为0.1ng/ml,检测弓形虫抗原灵敏度高于传统ELISA法6000倍,高于ABC-ELISA法750倍。     

Em18重组抗原特异性抗体的制备及对循环抗原检测的初探

目的 用Em18重组抗原ReEm18制备特异性抗体,建立双抗体夹心ELISA,检测患者血清中的循环抗原.方法 ReEm18经亲和纯化,免疫BALB/c小鼠和新西兰兔,分别制备单克隆抗体(单抗)和多克隆抗体(多抗).用获得的单抗和多抗建立双抗体夹心ELISA,检测患者血清中Em18循环抗原.结果 免疫兔血清抗ReEm18抗体效价达1∶204 800以上.经ReEm18和多房棘球蚴病(AE)患者血清及健康人血清阻断ELISA试验双重筛选融合细胞,共获得14株抑制率＞50%的特异性阳性细胞克隆.将特异性单抗和多抗自由组合进行双抗体夹心ELISA,结果以9号单抗与多抗的配对检测抗原为最优,检测ReEm18的灵敏度达3 ng/m1.用建立的双夹心ELISA方法检测血清,11份AE血清中6份为阳性.结论 获得针对ReEm18的特异性单抗和多抗,建立了敏感的双抗体夹心ELISA方法,血清学初步检测结果表明AE血清中存在可检测的Em18循环抗原.     

免疫-PCR检测肾综合征出血热患者血清中抗核衣壳蛋白抗体方法的建立

目的　建立高灵敏性和高特异性的免疫 -PCR方法检测肾综合征出血热 (HFRS)患者血清中抗核衣壳蛋白抗体。方法　用汉坦病毒 ( 76 - 118株 )重组核衣壳蛋白为抗原包被聚苯乙烯微滴度板 ,与经ELISA法和临床均已确诊为HFRS患者的血清进行抗原抗体特异性反应 ,以链霉亲和素为桥梁将生物素标记的抗体与生物素标记的DNA指示分子相连 ,PCR扩增DNA指示分子 ,通过检测指示分子DNA来反映肾综合征出血热患者血清中抗核衣壳蛋白抗体的水平 ,并与传统的ELISA法进行比较。结果　免疫 -PCR检测肾综合征出血热患者血清中抗核衣壳蛋白抗体的敏感性是ELISA法的 2 5 0 0 0倍 ;30例HFRS阳性患者血清免疫 -PCR检测均为阳性 ,2 0例甲型肝炎阳性血清和 2 0例正常人血清免疫 -PCR检测均为阴性。结论　免疫 -PCR方法敏感性高 ,特异性强 ,有可能作为一种高敏感性的检测方法用于HFRS的临床辅助诊断     

抗淋病奈瑟菌外膜蛋白I多克隆抗体的制备及其ELISA双抗夹心法的建立

目的 制备抗淋病奈瑟菌外膜蛋白I多克隆抗体,建立检测外膜蛋白I的双抗夹心法。方法 以淋病奈瑟菌及其外膜蛋白I作为抗原,分别免疫健康雄性家兔及雌性BALB/C小鼠,制备兔抗淋病奈瑟菌和鼠抗外膜蛋白I多克隆抗体,并采用 ELISA法检测抗体效价。结果与讨论 经ELISA证明兔抗淋病奈瑟菌多抗可与淋病奈瑟菌外膜蛋白I呈高效价反应,以此建立的ELISA双抗夹心法检测外膜蛋白I可获满意结果。     

抗淋病奈瑟菌外膜蛋白Ⅰ多克隆抗体的制备及其ELISA双抗夹心法的建立

目的制备抗淋病奈瑟菌外膜蛋白Ⅰ多克隆抗体,建立检测外膜蛋白Ⅰ的双抗夹心法.方法以淋病奈瑟菌及其外膜蛋白Ⅰ作为抗原,分别免疫健康雄性家兔及雌性BALB/C小鼠,制备兔抗淋病奈瑟菌和鼠抗外膜蛋白Ⅰ多克隆抗体,并采用ELISA法检测抗体效价.结果与讨论经ELISA证明兔抗淋病奈瑟菌多抗可与淋病奈瑟菌外膜蛋白Ⅰ呈高效价反应,以此建立的ELISA双抗夹心法检测外膜蛋白Ⅰ可获满意结果.     

抗淋病奈瑟菌外膜蛋白I多克隆抗体的制备及其ELISA双抗夹心法的建立

目的 制备抗淋病奈瑟菌外膜蛋白I多克隆抗体,建立检测外膜蛋白I的双抗夹心法。方法 以淋病奈瑟菌及其外膜蛋白I作为抗原,分别免疫健康性家兔及雌性BALB/C小鼠,制备兔抗淋病奈瑟菌和鼠抗外膜蛋白I多克隆抗体,并采用ELISA法检测抗体效价。结果与讨论 经ELISA证明兔抗淋病奈瑟菌多抗可与淋病奈瑟菌外膜蛋白I呈高效价反应,以此建立的ELISA双抗夹心法检测外膜蛋白I可获满意效果。     

双抗体夹心ELISA法检测广州管圆线虫循环抗原的研究

目的建立双抗体夹心ELISA法检测广州管圆线虫循环抗原(Cag)。方法采用两株抗广州管圆线虫成虫可溶性抗原单克隆抗体,应用双抗体夹心ELISA法检测广州管圆线虫CAg,并摸索该法的最佳实验条件。对感染大鼠、小鼠、疑似和确诊广州管圆线虫病病例血清进行检测,评价方法的敏感性;对日本血吸虫、肺吸虫、旋毛虫、囊虫病人血清进行交叉反应试验,评价方法的特异性。结果10μg/ml单抗包被,酶标记单抗1∶1 600稀释为最佳工作浓度。利用该法检测不同血清广州管圆线虫循环抗原的敏感性为84.2%~87.2%,特异性为100%。结论建立的双抗体夹心ELISA法检测广州管圆线虫循环抗原具有敏感性高、特异性强和经济、简便易行等优点。     

适于HIV-1 p24抗原检测试剂的单抗制备与筛选

目的制备抗HIV-1p24单克隆抗体(单抗,McAb),并利用双抗体夹心ELISA法建立HIV-1p24抗原检测试剂。方法以基因工程原核重组抗原HIV-1p24蛋白免疫BALB/c小鼠,利用常规杂交瘤技术和间接ELISA法制备单克隆抗体,单抗经纯化和HRP标记后,利用双抗体夹心ELISA筛选检测p24蛋白的最佳配伍单抗以期建立HIV-1p24抗原检测试剂。结果成功筛选到16株稳定分泌抗HIV-1p24单抗的杂交瘤细胞株,并从中筛选出最佳单抗配伍组合“16G12+2F2b-HRP”,该组合对p24蛋白的检测灵敏度为20pg/mL,对感染性克隆pNL4-3表达的HIV病毒培养上清检测呈阳性,对100份HIV阴性人血清无非特异性反应,显示出良好的检测灵敏度和特异性。结论本研究初步成功地建立了HIV-1p24抗原的检测试剂,并为最终建立HIV第四代诊断试剂(HIV Ag/Ab Assay)奠定了坚实的基础。     

弓形虫抗血清IgG的制备及其检测效果研究

目的比较弓形虫不同免疫原所制备抗血清 IgG 的检测效果,优选高效价的抗体诊断试剂。方法制备弓形虫的细胞质抗原(C)、代谢抗原(S)。用抗原 C、C S、S 及活虫(P)各免疫2只家兔,收集抗血清经纯化而获得 IgG 抗体(多抗)并制备酶标记抗体;用上述4种多抗与对应的多抗-HRP 组合成4种双抗体夹心型 ELISA,检测人血清 CAg 和 C、S 抗原,评价试剂的敏感性;抗血清与疟原虫、隐孢子虫等抗原进行交叉反应性试验,评价试剂的特异性;采用捕获法检测人血清 IgM 抗体,比较4种多抗-HRP 的检测效果。结果各种 ELISA 夹心法同步检测 CAg 阳性标本7例,阴性样本8例,均未出现假阴性和假阳性反应,其 OD 均值的 P/N 比值依次为 C C 组33.5、S S 组27.8、CS CS 组21.2、P P 组13.2;C 和 S 抗原的最低检出量均为0.5μg/ml;与其它寄生虫未出现交叉反应。4种多抗-HRP 同步检测IgM 抗体阳性标本3例,阴性样本7例,均未出现假阴性和假阳性反应,其 OD 均值的 P/N 值最高的是抗 C-HRP。结论 4种抗体用于检测人血清 IgM 抗体、CAg、C 和 S 抗原以及其它抗原的结果表明,各种抗体试剂均具有良好的敏感性和特异性,其中以抗 C 抗体试剂最为满意。(2)4种组合形式的夹心ELISA,检测弓形虫抗原的差异无统计学意义,表明弓形虫 C 和 S 抗原间存在着共同抗原成分。     

抗HIV-1 gp41单克隆抗体的制备及意义

目的为HIV-1感染的检测和研究提供依据。方法以基因工程重组抗原HIV-1 gp41蛋白免疫BALB／c小鼠,利用常规杂交瘤技术和间接ELISA法制备抗gp41蛋白的单克隆抗体（mAb）,用ELISA法鉴定所得mAb的Ig亚类、效价及特异性。单抗经饱和硫酸铵（SAS）纯化和HRP标记后,利用双抗体夹心ELISA筛选检测gp41蛋白的最佳配伍单抗,分别包被ELISA板及作为酶标mAb,建立双mAb夹心ELISA法。结果经细胞融合、筛选、克隆化,获得了12株可分泌高效价mAb的杂交瘤细胞。纯化的腹水mAb经配对试验,选出2株mAb：7D4和9G2-HRP建立了双mAb夹心ELISA法,检测HIV-1 gp41抗原的灵敏度是1μg/L。结论获得12株效价高的抗HIV-1 gp41的mAb,建立了特异性强、灵敏度较高的检测HIV-1 gp41抗原的双抗体夹心ELISA法。     

肌幼虫可溶性抗原与ES抗原检测抗旋毛虫抗体效果的比较

目的比较旋毛虫肌幼虫可溶性抗原(SAg)与ES抗原(ESAg)检测抗旋毛虫抗体的效果。方法应用SAg-ELISA和ESAg-ELISA对旋毛虫病患者血清、感染旋毛虫的小鼠血清及肉汁、其他寄生虫感染人及动物血清进行抗旋毛虫抗体的检测。结果SAg-ELISA和ESAg-ELISA对10例旋毛虫病患者血清检测时抗体阳性率均为100%,但对10份正常人血清检测时SAg-ELISA的背景较深,两种抗原的A值相比较具有显著性差异(P<0.05);应用两种抗原对旋毛虫感染小鼠和正常小鼠血清及肉汁的检测结果与对人血清的检测结果相似。SAg与肝吸虫、肺吸虫、血吸虫等寄生虫感染人及动物血清均有交叉反应,而ESAg仅与1例肺吸虫病患者血清有交叉反应。结论旋毛虫肌幼虫SAg和ESAg检测抗旋毛虫抗体的敏感性相同,但ESAg的特异性优于SAg;肉汁也可作为样本进行抗旋毛虫抗体的检测。     

The usefulness of ELISA test for early serological detection of Trichinella spp. infection in pigs

Trichinellosis is a parasitic zoonosis transmitted to humans through consumption of raw or undercooked meat from animals infected with nematodes of the Trichinella genus. Every year seropositive cases are found among the human population and thus trichinellosis still remains an epidemiologically important disease. The first step of the study was the optimization of a new ELISA method enabling an early and specific serological diagnosis of trichinellosis in pigs and wild boars using excretory-secretory (ES) antigens obtained from in vitro cultures of L1 T. spiralis. Serum samples were assayed for anti-T. spiralis IgG antibodies using the new ELISA protocol and a reference test--Standard manufactured by Institut Pourquier. The optimization involved the selection of suitable plates for antigen coating, dilution of sera and antibodies and their time of incubation. On the basis of the optimization a new ELISA procedure for the detection of IgG and IgM against T. spiralis was elaborated. Conventional, Iberian pigs and SPF (Specific Pathogen Free) pigs were infected with 200, 1000 and 20,000 muscle larvae of T. spiralis. Serum samples were obtained at 5 and 1 dbi (day before infection), and 5, 10, 15, 20, 25, 30, 40, 50, 60 dpi (day post infection) and screened for specific IgG antibodies against excretory-secretory L1 T. spiralis antigens. Serum samples were obtained from the EU project Trichiporse: "Safe pork and horse meat on EU markets: early and unbiased diagnostic tests for Trichinella". Field samples of conventional pigs (1474) and wild boars (1784) were obtained from slaughter houses in different parts of Poland. Pigs were examined for the presence of Trichinella spp. using the artificial digestion method. Only four pigs were naturally infected with T. spiralis, the remaining were Trichinella larvae free. ELISA was used to examine IgG levels against L1 T. spiralis in pig and wild boar sera. The usefulness of ELISA for anti-IgG detection in pigs is usually limited by the nature of the antigen. The antigens were prepared in different laboratories: in Germany--Ag ES L1 T. spiralis (N), Italy--Ag ES L1 T. spiralis (W)) and in Poland--Ag ES L1 T. spiralis. Cut-off values for ELISA along with the estimated sensitivity and specificity were calculated using different methods: S/P%, M+3SD and ROC (Receiver Operating Characteristic). In SPF and Iberian pigs inoculated with 200, 1000 and 20,000 L1 T. spiralis, specific antibodies were detected 40, 30 and 25 dpi, respectively, with the use of the Standard (reference test). The analysis of the two ELISA procedures demonstrated a high sensitivity and specificity for the newly elaborated test utilizing the Ag ES L1 T. spiralis. In conventional pigs infected with 20,000 L1 T. spiralis specific antibodies were detected from 20 dpi when employing the new protocol. Similar results for the Standard and new ELISA test were obtained for serum samples of conventional pigs infected with 200 and 1000 larvae, which became positive from 40 dpi and 30 dpi, respectively. The results showed that both: the Standard and new protocols were comparable, and based on this, the new test was applied for further research. Results obtained adopting the new protocol with three antigens showed that two of them: Ag ES L1 T. spiralis (W) and Ag ES L1 T. spiralis are similar. The specific IgG antibodies for infective doses of 200 and 1000 larvae for these antigens were detectable 40 and 30 dpi respectively. In pigs infected with the highest dose of T. spiralis larvae IgG antibodies were detectable from 20 dpi when Ag ES L1 T. spiralis was used. These results strongly indicate that in examined pigs, the specific IgG response to T. spiralis infection is dose dependant. Of 1474 examined pig sera only 0.99% gave a positive signal against ES L1 T. spiralis antigen. Of 1784 examined wild boars sera only 0.68 % gave positive results using the new ELISA protocol. ELISA is a useful method for detecting specific IgG antibodies in pigs experimentally infected with different doses of T. spiralis and naturally infected pigs. In pigs the specific IgG response is dose dependant. The Ag ES L1 T. spiralis increases the specifity of the method and reduces false positive results. Simultaneous use of both methods: digestion and ELISA for the diagnosis of Trichinella in naturally infected pigs and wild boars may increase the chances of eliminating meat infected with T. spiralis larvae.     

应用免疫-PCR检测弓形虫循环抗原的实验研究

目的　控索弓形虫感染早期诊断方法。方法　用链亲素将生物素化的二抗和生物素化的 DNA偶联起来 ,通过PCR扩增标记 DNA检测固定的抗原 ,建立了弓形虫循环抗原免疫— PCR检测技术 ,用该技术和 EL ISA法平行检测系列稀释的弓形虫的感染鼠阳性血清中的 CAg以及实验感染鼠血清中 CAg的动态变化 ,对比研究二者之间的敏感性。结果　免疫—PCR法检测弓形虫 CAg吴阳性的血清最高稀释度为 1∶ 10 0 0 ,EL ISA法检测弓形虫 CAg呈阳性的血清最高稀释度为 1∶ 5 ,免疫— PCR最早在鼠感染弓形虫后第 3天测到 CAg,EL ISA最早在鼠感染弓形虫后第 5天测到 CAg。结论　免疫— PCR是一种特异性强、敏感性高的弓形虫 CAg检测方法 ,敏感性较 EL ISA法提高了 2 0 0倍 ,免疫— PCR检出阳性结果时间早 ,为弓形虫病早期诊断提供了科学依据     

The influence of the procedure of excretory-secretory L1 trichinella spiralis antigen preparation on the efficiency of an ELISA test in pigs

BACKGROUND: Trichinellosis is a parasitic zoonosis transmitted to humans by consumption of raw or undercooked meat from animals infected by worms of the Trichinella genus. Every year seropositive cases are found among the human population and thus trichinellosis still remains an epidemiologically important disease in Poland. The usefulness of ELISA for anti-T. spiralis IgG detection in pigs is still limited by the nature of antigen. The objective in the present study was to compare the usefulness of excretory-secretory antigens of L1 T. spiralis for the serological detection of IgG antibodies in pigs. MATERIAL AND METHODS: The antigens were prepared in different laboratories: Ag ES L1 T. spiralis (N) in Germany, Ag ES L1 T. spiralis (W) in Italy and Ag ES L1 T. spiralis in Poland. Conventional, Iberian pigs were infected with 200, 1000 and 20 000 muscle larvae of T. spiralis. Serum samples were obtained at 5 and 1 dbi (day before infection), and 5, 10, 15, 20, 25, 30, 40, 50, 60 dpi (day post infection) and screened for specific IgG antibodies to excretory-secretory L1 T. spiralis antigens. Serum samples were obtained from the EU project TRICHIPORSE. The cut-off value of ELISA was determined on serum samples from 248 Trichinella-free pigs from Poznaii and Boza Wola, that were examined by artificial digestion. RESULTS: In pigs infected with 200 L1 T. spiralis larvae, specific IgG were detectable from 50 dpi, when the Ag ES L1 T. spiralis (N) was used, whereas when Ag ES L1 T. spiralis (W) and Ag ES L1 T. spiralis were used, the specific IgG were detectable from 40 dpi. In pigs infected with 1000 LI T. spiralis larvae, specific IgG was observed from 30 dpi when Ag ES L1 T. spiralis (W) and Ag ES L1 T. spiralis were used, but when Ag ES L1 T. spiralis (N) was used specific IgG were detectable from 40 dpi. In the group infected with the highest dose of T. spiralis larvae, specific IgG were detectable from 30 dpi when Ag ES L1 T. spiralis (N) and Ag ES L1 T. spiralis (W) were used, whereas when Ag ES L1 T. spiralis was used specific IgG were detectable from 20 dpi. The results strongly indicated that in the examined pigs, the specific IgG response against T. spiralis infection is dose dependent. Furthermore, it was shown that the high infectious dose induced earlier increasing of specific IgG response. Statistical analysis revealed a significant positive correlation between OD values obtained in procedures based on the three antigens. The results were statistically repeatable for procedures and for single pigs (P<0.01).     

抗广州管圆线虫成虫单克隆抗体的研制及初步应用

目的制备抗广州管圆线虫成虫单克隆抗体并研究其初步应用。方法用广州管圆线虫成虫可溶性抗原免疫BALB/c小鼠,经融合,筛选分泌高滴度、高特异性单克隆抗体的杂交瘤细胞株。使用所得的单克隆抗体以Western blotting检测广州管圆线虫病患者血清,并建立双抗体夹心ELISA法检测感染大鼠血清。结果获得3株分泌高滴度抗广州管圆线虫成虫可溶性抗原的单克隆抗体杂交瘤细胞株(2A2、3F1、4H2),其分泌的抗体与日本血吸虫、卫氏并殖吸虫、猪囊尾蚴、旋毛虫抗原均不发生交叉反应。3株单克隆抗体均可识别广州管圆线虫成虫可溶性抗原蛋白Mr 15 000,以及患者血清中两种循环抗原Mr24 000和Mr15 000。双抗体夹心ELISA检测阳性率为76.5%。结论制备的抗广州管圆线虫成虫可溶性抗原的杂交瘤细胞株能分泌高滴度、高特异性的单克隆抗体,且在循环抗原的检测方面有应用前景。     

旋毛虫Ts21重组蛋白的免疫诊断价值及免疫保护作用的研究

目的 探讨旋毛虫Ts21重组蛋白的免疫诊断价值及免疫保护作用。 方法 应用旋毛虫Ts21重组蛋白ELISA（Ts21-LISA）与肌幼虫ES抗原ELISA（ES-LISA）对旋毛虫病与其他寄生虫病患者血清及5种旋毛虫（T1、T2、T3、T4和T7）感染小鼠血清进行检测,并观察不同剂量旋毛虫感染小鼠后不同时间的血清抗体水平。将Ts21重组蛋白皮下注射免疫小鼠（20 μg/只,免疫3次,每次间隔10 d）,末次免疫后10 d,每只小鼠用300条旋毛虫肌幼虫经口攻击感染,3.5 d和42 d 后剖杀,观察肠道成虫与肌幼虫数并计算减虫率。 结果 Ts21-LISA检测旋毛虫病、并殖吸虫病、囊尾蚴病及棘球蚴病患者血清的抗体阳性率分别为94.7%（18/19）、15.8%（3/19）、9.1%（1/11）和7.7%（1/13）,与血吸虫病、华支睾吸虫病患者血清及健康人血清无交叉反应;Ts21重组蛋白与ES抗原ELISA检测旋毛虫病患者血清抗体的敏感性与特异性差异均无统计学意义（χ²=0,P＞0.05;χ²=0.358,P＞0.05）。Ts21重组蛋白与ES抗原检测T1感染小鼠血清的敏感性差异无统计学意义（χ²=0.104,P＞0.05）,与T2、T3、T4、T7感染小鼠血清的交叉反应率明显低于ES抗原（χ²=17.069,P＜0.05）。小鼠感染300条旋毛虫后4 周,应用Ts21-LISA检测的血清抗体阳性率为100%（10/10）;小鼠感染5条旋毛虫后6周,血清抗体阳性率为100%（10/10）。Ts21重组蛋白免疫小鼠用旋毛虫攻击感染后3.5 d和42 d,肠道成虫与肌幼虫减虫率分别为42.71%和49.8%。 结论 Ts21重组蛋白可用于旋毛虫病的血清学检测,但不能忽视与并殖吸虫病、囊尾蚴病及棘球蚴病患者血清的交叉反应。     

免疫层析试纸条诊断旋毛虫病的研究

目的建立一种能诊断人体旋毛虫病及动物旋毛虫感染的快速血清学方法。方法以胶体金标SPA和旋毛虫肌幼虫ES抗原制备免疫层析试纸条(immunochromatographic strip),对旋毛虫病及其它寄生虫病患者血清、旋毛虫及其它寄生虫感染的动物血清进行检测。结果试纸条检测旋毛虫病患者与旋毛虫感染的小鼠、大鼠、兔、猪血清的阳性率分别为100%(20/20)、97.87%(92/94)、100%(5/5)、100%(5/5)及100%(25/25),15min内肉眼可观察结果;其它寄生虫病(并殖吸虫病、血吸虫病、华支睾吸虫病、囊虫病及包虫病等)患者及正常人血清、其它寄生虫感染动物及正常动物血清均为阴性。试纸条和ELISA对100条幼虫感染小鼠血清检测的阳性率分别为91.3%(21/23)和95.7%(22/23)(χ2=0.36,P>0.05),两种方法对200～500条幼虫感染小鼠血清检测的阳性率均为100%(71/71)。试纸条对乡土旋毛虫、布氏旋毛虫、伪旋毛虫及纳氏旋毛虫感染小鼠血清检测的阳性率亦均为100%。试纸条在4℃可保存13个月,检测结果在室温可保存3个月。结论该试纸条可用于人体旋毛虫病和动物旋毛虫感染的快速血清学诊断,也可用于其它种旋毛虫感染的血清流行病学调查。     

己酮可可碱联合阿苯达唑治疗小鼠泡球蚴病的疗效观察

目的 观察己酮可可碱（PTX）和阿苯达唑（ABZ）单独及联合用药对小鼠继发性泡球蚴病的疗效。 方法 对小鼠继发性泡球蚴病进行药物治疗，各治疗组药物用量分别为：ABZ组 50 mg/（kg·d）；PTX高剂量组360 mg/（kg·d）；PTX低剂量组180 mg/（kg·d）；联合组 ABZ 50 mg/（kg·d） + PTX 180 mg/（kg·d）；感染对照组（未治疗组）和空白对照组均给予等体积生理盐水，用小鼠灌胃针经口每天灌胃给药1次，连续治疗100 d后 （其间14只死亡），检测各小鼠泡球蚴湿重、抑囊率及小鼠血清细胞因子转化生长因子?鄄β （TGF-β）、白细胞介素?鄄2 （IL-2）和IL?鄄10；并对泡球蚴组织进行病理组织学和超微结构观察。 结果 PTX在体外能有效地杀灭原头节（高剂量组为100%）, 在体内对泡球蚴抑制作用虽较弱（高剂量组为37%），但能增强小鼠的免疫力。联合用药对泡球蚴有明显的抑制作用，抑囊率为88 %，ABZ抑囊率为58 % （P<0.05）。 结论 PTX联合ABZ治疗小鼠继发性泡球蚴病疗效明显优于ABZ。