期刊
VETERINARY RESEARCH
卷 52, 期 1, 页码 -出版社
BMC
DOI: 10.1186/s13567-021-00980-4
关键词
optimized protocol; levamisole; anthelmintics; helminths; adult worms; exsheathed third-stage larvae
资金
- Charles University in Prague [GAUK 1568519, UNCE/18/SCI/012, SVV 260 550, CZ.02.1.01/0.0/0.0/16_019/0000841]
- ERDF
The parasitic gastrointestinal nematode Haemonchus contortus causes economic losses in small ruminant livestock, and new therapies are needed. A novel viability testing method for adults and exsheathed third-stage larvae of H. contortus has been developed, which could serve as a complementary assay for screening new compounds with potential antinematode activity.
The parasitic gastrointestinal nematode Haemonchus contortus causes serious economic losses to agriculture due to infection and disease in small ruminant livestock. The development of new therapies requires appropriate viability testing, with methods nowadays relying on larval motility or development using procedures that involve microscopy. None of the existing biochemical methods, however, are performed in adults, the target stage of the anthelmintic compounds. Here we present a new test for the viability of H. contortus adults and exsheathed third-stage larvae which is based on a bioluminescent assay of ATP content normalized to total protein concentration measured using bicinchoninic acid. All the procedure steps were optimized to achieve maximal sensitivity and robustness. This novel method can be used as a complementary assay for the phenotypic screening of new compounds with potential antinematode activity in exsheathed third-stage larvae and in adult males. Additionally, it might be used for the detection of drug-resistant isolates.
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