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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/160799
First Molecular Diagnosis of Clinical Cases of Gastric Anisakiosis in Spain
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Anisakiosis is a fish-borne disease with gastrointestinal and/or allergic symptoms caused by the consumption of raw or undercooked fish parasitized with nematode larvae of the genus Anisakis. In Europe, Anisakis pegre i has been detected as the causative agent, although the sibling species Anisakis simplex sensu stricto (s.s.) is also known to cause the disease in other parts of the world, and discrepancies exist regarding their respective pathogenic potential. In Spain a high number of cases has been recorded, with marinated anchovies being the main source of infection, although no specific diagnosis has been documented in humans. In this study, we analyzed three cases of anisakiosis in patients from Barcelona (Spain) who had consumed undercooked hake. All patients described epigastric pain and several larval nematodes were removed endoscopically from their stomachs. Larvae were morphologically characterized as third-stage larvae of Anisakis simplex sensu lato (s.l.) and molecularly identified as A. simplex (s.s.) by means of PCR RFLP of the ITS region of the rDNA and sequencing of the elongation factor1 alpha1 (EF1 -1) nDNA gen. This study represents the first specific identification of Anisakis larvae in clinical cases of anisakiosis reported in Spain. Specific molecular diagnosis is of crucial importance for assessing the health risk of Anisakis sibling species. Hake consum
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ROCA GERONÈS, Xavier, ALCOVER AMENGUAL, Maria magdalena, GODÍNEZ GONZÁLEZ, Carla, GONZÁLEZ-MORENO PORTUGAL, Olga, MASACHS, Miquel, FISA SALADRIGAS, Roser, MONTOLIU SANLLEHY, Isabel de. First Molecular Diagnosis of Clinical Cases of Gastric Anisakiosis in Spain. _Genes_. 2020. Vol. 11, núm. 452. [consulta: 28 de gener de 2026]. ISSN: 2073-4425. [Disponible a: https://hdl.handle.net/2445/160799]