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| DOI | 10.1016/j.actatropica.2024.107166 |
| Temperature dependence of Opisthorchis felineus infection in the first intermediate host snail, Bithynia troschelii | |
| 发表日期 | 2024 |
| ISSN | 0001-706X |
| EISSN | 1873-6254 |
| 起始页码 | 253 |
| 卷号 | 253 |
| 英文摘要 | Opisthorchiasis is one of the most serious trematodiases in Russia, where the world ' s largest focus is located in the Ob basin. Temperature is an important factor affecting the metabolism of cold-blooded animals. It determines the development of the causative agent of opisthorchiasis, Opisthorchis felineus , and the success of infection of an intermediate host, the snail Bithynia troschelii . In the present study, the effect of water temperature on the development of the liver fluke O. felineus in the host snail was assessed, as was the temperature threshold at which B. troschelii hibernation initiates. Adult uninfected B. troschelii individuals collected from natural bodies of water were infected with O. felineus and maintained at different temperatures of water (18 - 30 degrees C, intervals of 3 degrees C) in the laboratory. Each snail was fed with embryonated uterine eggs of O. felineus at 24 degrees C. O. felineus infection in snails was detected using polymerase chain reaction (PCR) using specific primers. The prevalence of O. felineus infection in B. troschelii depends on the water temperature in which the snails are maintained. The highest infection rate of 45.2 % +/- 12.1 % was observed at 27 degrees C ( p >= 0.1). The longest lifespan of infected and uninfected B. troschelii was recorded at water temperatures of 24 and 27 degrees C. The snails were more successfully infected at the beginning of the warm season. Among the infected individuals, the majority (up to 85 %) were large snails. Cercarial shedding was not detected in experimentally infected snails. Apparently, this is due to the natural physiological state of Bithynia snails during the autumn - winter diapause, when opisthorchiids development in snails stops. At 10 degrees C, complete hibernation of all B. troschelii snails was observed, and infection by the trematodes became impossible. The highest prevalence of infection was recorded at 27 degrees C, suggesting that during climate warming, an increase in opisthorchiid infection of snails may occur, which must be considered when epidemiological measures are planned. |
| 英文关键词 | Bithyniidae; Snails; Opisthorchis felineus; Western Siberia; Climate change; Temperature; Hibernation |
| 语种 | 英语 |
| WOS研究方向 | Parasitology ; Tropical Medicine |
| WOS类目 | Parasitology ; Tropical Medicine |
| WOS记录号 | WOS:001218627700001 |
| 来源期刊 | ACTA TROPICA
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/291073 |
| 作者单位 | Russian Academy of Sciences |
| 推荐引用方式 GB/T 7714 | . Temperature dependence of Opisthorchis felineus infection in the first intermediate host snail, Bithynia troschelii[J],2024,253. |
| APA | (2024).Temperature dependence of Opisthorchis felineus infection in the first intermediate host snail, Bithynia troschelii.ACTA TROPICA,253. |
| MLA | "Temperature dependence of Opisthorchis felineus infection in the first intermediate host snail, Bithynia troschelii".ACTA TROPICA 253(2024). |
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