阿苯达唑,氟苯达唑和甲苯达唑对微小膜壳绦虫作用的形态学…

应用形态学组织化学方法，观察比较阿苯达唑、氟苯达唑和甲苯达唑对微小膜壳绦虫的杀虫作用机理。实验结果表明，阿苯达唑与氟苯达唑作用机理相同，均使虫体破坏，对糖代谢有明显干扰作用，对酸性磷酸酶、碱性磷酸酶活性无变化，甲苯达唑无上述作用。     

芬苯达唑,氟苯达唑和阿苯达唑对隐藏管状线虫作用的观察

应用虫体活力、产卵、幼虫孵化、形态学及组织化学方法，观察比较芬苯达唑、氟苯达唑和阿苯达唑对隐藏管状线虫的杀虫机理。实验结果表明３种药物的作用机理相同，均能使排卵减弱、停止，幼虫不能孵化，虫体结构破坏、消失，对糖代谢有明显干扰作用，对酸性磷酸酶、碱性磷酸酶活性无变化。     

芬苯达唑、氟苯达唑和阿苯达唑对隐藏管状线虫作用的观察

应用虫体活力、产卵、幼虫孵化、形态学及组织化学方法，观察比较芬苯达唑、氟苯达唑和阿苯达唑对隐藏管状线虫的杀虫机理。实验结果表明３种药物的作用机理相同，均能使排卵减弱、停止，幼虫不能孵化，虫体结构破坏、消失，对糖代谢有明显干扰作用，对酸性磷酸酶、碱性磷酸酶活性无变化。     

阿苯达唑和氟苯达唑对旋毛虫作用的形态学,组织学及组织…

应用形态学、组织学及组织化学方法，观察比较阿苯达唑、氟苯达唑对旋毛虫幼虫的杀虫作用机制。实验结果表明两种药物作用机制同，均使旋毛虫囊包破坏，虫体破损，囊包炎性细胞浸润，终至虫体被完全机化；对糖代谢有明显干扰作用，对酸性磷酸酶、碱性磷酸酶活性无变化。     

阿苯达唑 氟苯达唑和吡喹酮对犬钩蚴的作用

目的了解阿苯达唑、氟苯达唑和吡喹酮对犬钩蚴的作用。方法将药物与标本充分混匀,置于固体培养基滤纸上,均匀按压后,盖上平皿盖。置35℃培养（孵化）箱培养24h,分别将药物与培养物钩蚴混匀,用水洗沉淀法镜下分别观察药物作用24、48h的沉淀物中钩蚴的生长发育情况。结果药物作用24、48h后,与对照组相比,阿苯达唑效果明显,钩蚴发育停止、轮廓模糊、内部结构不清消失。氟苯达唑几乎无作用。吡喹酮结果与对照组相同,可见钩蚴明显长大,体态自然、虫体透明、轮廓明显、结构清晰。结论阿苯达唑对犬钩蚴发育有明显的抑制作用,氟苯达唑和吡喹酮对犬钩蚴发育无抑制作用。     

阿苯达唑和氟苯达唑对旋毛虫作用的形态学、组织学及组织化学的观察

应用形态学、组织学及组织化学方法,观察比较阿苯达唑、氟苯达唑对旋毛虫幼虫的杀虫作用机制。实验结果表明两种药物作用机制相同,均使旋毛虫囊包破坏,虫体破损,囊包炎性细胞浸润,终至虫体被完全机化;对糖代谢有明显干扰作用,对酸性磷酸酶、碱性磷酸酶活性无变化。     

细粒棘球蚴囊经甲苯达唑、阿苯达唑或阿苯达唑亚砜作用后其生发层的形态学变化和药物含量

小鼠的继发性细粒棘球蚴囊在含甲苯达唑阿苯达唑或阿苯达唑亚枫1及10μg/ml的培养液中培养l～7d时,囊壁所含各药物的量相近,但生发层的受损以甲苯达唑组较重,次为阿苯达唑亚砜和阿苯达唑组。感染小鼠ig上述3种苯并咪唑类化合物的等效剂量1～14d后24h,囊壁的药物含量甚低,但生发层的损害仍以甲苯达唑组的较重,并认为阿苯达唑亚矾是阿苯达唑的有效代谢物。     

甲苯达唑、阿苯达唑及其代谢物实验治疗小鼠继发性细粒棘球蚴病的研究

在疗程为10～14d时,甲苯达唑对小鼠继发性细粒棘球蚴病的最低有效剂量为25mg/kg/d,阿苯达唑的为100mg/kg/d。在所用的疗程下,甲苯达唑的剂量较阿笨达唑100～300mg/kg/d低3～11倍时,它们的疗效相仿,但甲苯达唑100mg/kg/d的疗效则优于剂量大l～2倍的阿苯达唑。甲苯达唑与阿苯达唑合并治疗未能明显提高疗效,但此2种药物并用吡喹酮治疗则疗效明显提高。实验证明阿苯达 唑亚砜的疗效优于阿苯达唑,而阿苯达唑用则无效。     

复方阿苯达唑驱除肠道线虫的现场观察

目的：观察复方阿苯达唑（每片含阿苯达唑６７ｍｇ和噻嘧啶８３．３ｍｇ基质）的驱虫效果。方法：对成人钩虫感染者１８６４例、蛔虫感染者１５６８例和鞭虫感染者１７８５例及儿童蛲虫感染者３７３例，随机分组，比较服用单剂复方阿苯达唑３片或２片与单剂阿苯达唑４００ｍｇ或噻嘧啶３０ｍｇ（含基质１０ｍｇ）／ｋｇ的驱虫效果和副作用。结果：成人复方阿苯达唑３片和２片的虫卵阴转率，钩虫分别为６５．０％和５２．７％（Ｐ＜０．０１），蛔虫均为１００％，鞭虫分别为２６．５％和１９．２％（Ｐ＜０．０１）。３片的驱钩虫效果显著优于阿苯达唑和噻嘧啶组（Ｐ均＜０．０１）。２片的驱钩虫效果亦优于噻嘧啶（Ｐ＜０．０１），与阿苯达唑无显著性差异，但驱鞭虫效果低于阿苯达唑。２－６岁儿童服复方阿苯达唑１．５片的，蛲虫卵阴转率为１００％，显著优于噻嘧啶（Ｐ＜０．０１）。复方阿苯达唑的驱虫作用快速，副作用轻，对血象、肝肾功能和心电图无显著影响。结论：复方阿苯达唑具有阿苯达唑和噻嘧啶两药的协同作用。     

吡喹酮脂质体、吡喹酮、阿苯达唑、氟苯达唑和甲苯达唑对泡球蚴病的疗效观察

本文对小鼠继发性腹腔泡球蚴病用吡喹酮脂质体、吡喹酮、阿苯达唑、氟苯达唑和甲苯达唑进行实验治疗。５个治疗组对小鼠均能抑制泡球蚴增殖生长，抑制率分别为６８．７％，１４．３％，７０．０％，４８．３％和７７．０％。吡喹酮经脂质体包裹后，较吡喹酮组疗效明显提高（Ｐ＜０．０１）。各治疗组泡球蚴生发层均有不同程度损伤，与实验对照组有显著性差异（Ｐ＜０．０１），以吡喹酮脂质体对泡状棘球蚴损伤程度最重。超微结构显示，各治疗组对小鼠泡球蚴组织均有广泛的变化，以阿苯达唑组变化最重，细胞大部分解体。提示各种化疗药物对泡球蚴组织有广泛的细胞内效应。     

循环抗体和循环抗原检测对泡球蚴病的疗效评价

本文对小鼠继发性泡球蚴病用吡喹酮脂质体、吡喹酮、阿苯达唑、甲苯达唑、氟苯达唑进行化疗，对各组治疗期间的小鼠血清用间接血凝（ＩＨＡ）、单克隆抗体（ＭｃＡｂ）、斑点酶联免疫吸附试验（Ｄｏｔ－ＥＬＩＳＡ），分别检测循环抗体（ＣＡｂ）和循环抗原（ＣＡｇ）。结果表明，除阿苯达唑组小鼠血清抗体水平在治疗结束时下降明显，与对照组有显著差异外，其余各治疗组的抗体水平下降均不明显。各组治疗结束时，小鼠血清的ＣＡｇ水平明显下降，与对照组有显著差异（Ｐ＜０．０１），表明检测循环抗原可作为疗效考核的指标之一。     

阿苯达唑、氟苯达唑、芬苯达唑和吡喹酮对犬钩口线虫卵的作用

目的观察阿苯达唑、芬苯达唑、氟苯达唑和吡喹酮对犬钩口线虫卵作用。方法分别将药物与标本充分混匀,置于固体培养基滤纸上,用竹签轻轻的均匀按压,使之与滤纸广泛、紧密接触,盖上平皿盖。放350C培养(孵化)箱培养,分别将培养物,用水洗沉淀后的沉淀物镜下观察。结果培养24h后,对照组,镜下可见正常发育钩蚴;阿苯达唑组之虫卵与培养前虫卵形态结构相似,但未见发育。氟苯达唑组,可见卵细胞分裂。芬苯达唑组虫卵发育成含胚卵。吡喹酮组之虫卵发育成含卷曲钩蚴。结论阿苯达唑对虫卵发育有明显的抑制作用,氟苯达唑次之。芬苯达唑和吡喹酮对虫卵发育无抑制作用。     

Comparative efficacy of some benzimidazoles and amoscanate (Go.9333) against experimental filarial infections

The comparative efficacy of mebendazole, fenbendazole, oxibendazole, oxfendazole, albendazole, flubendazole and micronized amoscanate (particle size 5-8 micron) against Litomosoides carinii and Brugia pahangi infections in Mastomys natalensis was studied on administration of the compounds per os (150 mg/kg/day for 5 days) and subcutaneous (100 mg/kg/day for 5 days) routes. It was found that benzimidazoles when given by the oral route had no effect on adults of L. carinii and B. pahangi. With most of these compounds there was a rise in microfilariae before registering a fall to varying degrees in the peripheral circulation. There was a gradual but effective reduction of microfilariae of L. carinii in animals treated orally with mebendazole (99%), flubendazole (95%) and oxfendazole (85%). No such effect was seen against B. pahangi microfilariae. On subcutaneous administration, all the benzimidazoles with the exception of fenbendazole exhibited marked macrofilaricidal activity against L. carinii. Such activity was not seen with oxibendazole, oxfendazole and fenbendazole against adults of B. pahangi. Amoscanate exhibited superiority over the benzimidazoles in that the compound eliminated microfilariae and adult worms of both L. carinii and B. pahangi species when given by oral and subcutaneous routes.     

A pharmacology-based comparison of the activity of albendazole and flubendazole against Echinococcus granulosus metacestode in sheep

Cyst echinococcosis (CE) is a zoonotic disease caused by the larval stage of the Echinococcus granulosus helminth parasite. The work reported here aimed to compare the efficacy of albendazole (ABZ) and flubendazole (FLBZ) against CE in naturally infected sheep. Additionally, their comparative pharmacokinetic behaviour and the assessment of serum liver enzymes activities were studied. Twelve (12) naturally infected sheep were allocated to the following experimental groups: unmedicated control group, FLBZ-treated and ABZ-treated.     

阿苯达唑对小鼠旋毛虫囊包幼虫作用后的组织化学观察

目的：探讨阿苯达唑对小鼠旋毛虫囊包幼虫的作用机制。方法：应用形态学、组织学及组织化学方法观察阿苯达唑治疗后囊包幼虫的形态学、组织学及酶的活性变化。结果：阿苯达唑治疗组,囊包幼虫的结构明显破坏,虫体缩小与断裂,部分虫体被吸收,囊包内伴有炎细胞浸润。组织化学染色显示,治疗组虫体糖原减少, Ｒ Ｎ Ａ、 Ｓ Ｄ Ｈ、 Ａ Ｔ Ｐａｓｅ、 Ａ Ｃ Ｐ活性均低于对照组,而 Ｌ Ｄ Ｈ 活性高于对照组。结论：阿苯达唑对旋毛虫的生理功能有影响。     

The effects of flubendazole and its metabolites on the larval development of <Emphasis Type="Italic">Haemonchus contortus</Emphasis> (Nematoda: Trichostrongylidae): an <Emphasis Type="Italic">in vitro</Emphasis> study

The anthelmintic effects of flubendazole (FLU), its two main metabolites reduced flubendazole (FLU-R) and hydrolyzed flubendazole (FLU-H), and thiabendazole (TBZ) were compared using an in vitro larval development test in two isolates of Haemonchus contortus, a fully susceptible isolate (HCS) and a multi-resistant isolate (HCR). Results were quantified as 50 % lethal concentration (LC₅₀), 99 % lethal concentration (LC₉₉), efficacy factor (EF), and resistance factor (RF). For HCS, both LC₅₀ and LC₉₉ of FLU were lower than those of the reference TBZ. The anthelmintic activity of FLU-R in HCS and HCR was 13 and 6 times lower than the activity of FLU, respectively. The anthelmintic activity of FLU-H was negligible (approximately 363–853 times lower) compared to that of FLU. Although a marked resistance of the HCR isolate to TBZ was confirmed, only a low tolerance to FLU-R and slightly higher tolerance to FLU were found.