نتایج جستجو برای: anthelmintics
تعداد نتایج: 1839 فیلتر نتایج به سال:
The molecular negotiations engaged between hosts and parasites have resulted in the evolution of highly specialized interspecific relationships which an array PDMs delimit conditions that render host permissive for parasite.An underappreciated characteristic some anthelmintics, such as ivermectin albendazole, whose mechanisms action remain incompletely resolved, is their ability to block releas...
Aim: The present study was aimed to determine the resistance against albendazole, fenbendazole, levamisole and closantel in gastrointestinal (GI) nematodes of sheep. Introduction: Anthelmintics are used traditionally as an integral part of helminthic control strategies for grazing livestock to prevent production losses from parasitic infections. The continuous and indiscriminate use of the same...
During the past decade in South Africa there has been a continual increase in sheep of strains of gastrointestinal helminths resistant to the modern anthelmintics. Five strains of Haemonchus contortus are described in this paper. Despite the fact that 2 of the 5 strains were tested for susceptibility only to ivermectin, a total of 10 instances of resistance were found. Four of the 5 strains wer...
Because of the rapid development nanotechnologies, materials, in particular, solid dispersions (SDs), which are actively introduced into life modern man, have been obtained. Special progress this area is observed industry and medicine. The use SDs agriculture lagging far behind, despite growing number scientific papers on topic. At same time, prospects for introduction agro-industrial complex o...
An optimized QuEChERS method for the simultaneous extraction of 26 antibiotics and 19 anthelmintics in whole cow milk was established, followed by UHPLC-MS/MS analysis. Briefly, 20 mL acetonitrile with 1 g disodium hydrogen citrate, 2 sodium 4 anhydrous MgSO4, chloride were added to 10 target chemical extraction, 50 mg MgSO4 purification. Satisfactory recoveries obtained using modified method, ...
BACKGROUND Anthelmintics are one of the more commonly available classes of drugs to treat infections by parasitic helminths (especially nematodes) in the human intestinal tract. As a result of their cost-effectiveness, mass school-based deworming programs are becoming routine practice in developing countries. However, experimental and clinical evidence suggests that anthelmintic treatments may ...
Surveys to determine the prevalence and degree of resistance of Haemonchus spp. of sheep and goats to the available anthelmintics in South Africa indicate that small ruminant production is entering a crisis situation. Three surveys employing the faecal egg count reduction (FECR) test to determine resistance were conducted in some of the main sheep-producing areas in the summer rainfall region o...
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