Hallazgos clínicos en perros parasitados por Dipetalonema dracunculoides

Bolio, M E; Montes, Ana; Panizo, Cándido Gutiérrez; Alonso, F.; Bernal, Luis J.; Sauri, C.H; Rodríguez-Vivas, RI

doi:10.4067/s0301-732x2002000200014

Cited by 4 publications

(3 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, the detection of DLF from questing (unfed) A. cajennense ticks that have already digested their previous blood meals, have further moulted, and are seeking vertebrates for their next blood meal suggests that A. cajennense can acquire and stably maintain infection through transstadial transmission [17], as also observed for other members of the Dipetalonema lineage [40,48]. For animals, the risk of acquiring a DLF infection is currently unknown, but surveys of dogs and capybaras infected by other filarioids of the Dipetalonema lineage revealed skin issues, chronic polyarthritis, anemia, and kidney and pulmonary damage [18,19,25,26,41].…”

Section: Discussionmentioning

confidence: 88%

Multi-locus sequence analysis unveils a novel genus of filarial nematodes associated with ticks in French Guiana

Bruley,

Duron

2024

Parasite

View full text Add to dashboard Cite

Filarial nematodes of the Dipetalonema lineage include tick-borne filarioids that infect both domestic and wild vertebrate hosts, but they remain understudied in many cases. In this study, we conducted a molecular characterization of a Dipetalonema-like filarioid (DLF) recently identified in two tick species in French Guiana, South America. While the cox1 mitochondrial gene was the sole marker initially sequenced for describing DLF, its classification and phylogenetic relationship with other members of the Dipetalonema lineage were unclear. Therefore, we better characterized DLF through the sequencing of six additional gene markers and conducted phylogenetic analyses. Based on this multi-locus typing scheme, DLF exhibited significant divergence from known genera and species of filarioids, or other sequences available in public databases, suggesting its potential classification as a novel genus within the Dipetalonema lineage. Phylogenetic analyses further unveiled a close evolutionary relationship between DLF and all other filarioids associated with Acari (ticks and mites) within a robust monophyletic subclade in the Dipetalonema lineage. Overall, these findings confirm the existence of a specialized, Acari-borne group of filarioids and underscore the need for comprehensive investigations into their epidemiology and potential impact on animal health.

show abstract

Section: Discussionmentioning

confidence: 88%

Multi-locus sequence analysis unveils a novel genus of filarial nematodes associated with ticks in French Guiana

Bruley,

Duron

2024

Parasite

View full text Add to dashboard Cite

show abstract

“…Dipetalonema dracunculoides infection has been reported in foxes and in a dog from Italy, but no cases have been described so far in cats. Adults of D dracunculoides live in the thoracic and peritoneal cavity of the final hosts and are not considered pathogenic, even if skin lesions, body cavity effusions, and neurologic symptoms are occasionally reported . Though in our case no abnormalities were observed at abdominal ultrasonographic examination, adults of D dracunculoides are very small and probably not detectable by ultrasound technology .…”

Section: Discussionmentioning

confidence: 97%

Nodular presentation of Dirofilaria repens infection in a cat mimicking a fibrosarcoma

Manzocchi¹,

Lendner²,

Piseddu³

et al. 2016

Veterinary Clinical Pathol

View full text Add to dashboard Cite

A cat with multiple subcutaneous nodules suggesting a soft tissue sarcoma by physical and computed tomographic examination was diagnosed as being affected by subcutaneous filariosis based on cytologic and ultrasonographic assessments. Nodules were surgically removed and extracted nematodes were identified by PCR as Dirofilaria repens. Furthermore, DNA of Dipetalonema dracunculoides (syn. Acantocheilonema dracunculoides) was detected by PCR, with no evidence of circulating microfilariae. To the best of the authors' knowledge, this represents the first report describing adults of D repens in multiple subcutaneous nodules in a cat. Cytopathologic examination allowed characterization of the parasitic nature of the nodules. Veterinary practitioners should be aware of the possible nodular presentation of D repens in cats and should include D repens in the differential diagnosis of subcutaneous neoformations in the cat.

show abstract

“…In dogs, recent surveys showed that Cercopithifilaria bainae can induce erythematous and pruritic dermatitis, subcutaneous nodules, ulcerative skin lesions and chronic polyarthritis [ 23 , 38 , 54 ]. Infections of dogs by other members of the Dipetalonema lineage, Acanthocheilonema spp., were also associated with clinical symptoms, such as anemia and high levels of plasma proteins [ 22 , 34 ]. In capybaras, adults of Cruorifilaria tuberocauda form tangled masses in the kidneys, and less frequently in the pulmonary arteries, where they cause extensive tissue damage with severe endarteritis, leading to obstruction of vessels and infarction of adjacent tissues [ 33 ].…”

Section: Discussionmentioning

confidence: 99%

Molecular detection of Cercopithifilaria, Cruorifilaria and Dipetalonema-like filarial nematodes in ticks of French Guiana

Binetruy

Duron

2023

Parasite

View full text Add to dashboard Cite

Filarial nematodes of the Dipetalonema lineage are widespread parasites and include some species that are transmitted by ticks. In this study, we conducted a large molecular survey of ticks in French Guiana, South America, to understand the overall diversity of tick-borne filarioids in this remote region largely covered by dense tropical forests. Out of 682 ticks belonging to 22 species and 6 genera, 21 ticks (3.1%) of the species Amblyomma cajennense, A. oblongoguttatum, A. romitii, Ixodes luciae and Rhipicephalus sanguineus sensu lato were positive for infection by filarioids. Molecular typing and phylogenetic analysis identified all these filarioids as members of the Dipetalonema lineage. While the filarioid of R. sanguineus sensu lato is a previously described species, the canine worm Cercopithifilaria bainae Almeida & Vicente, 1984, all other filarioids detected in this study are related but distinct to already known species in the genera Cercopithifilaria, Cruorifilaria and Dipetalonema. Their vertebrate host range may include a wide variety of mammals present in French Guiana, but dogs, capybaras, and opossums are the best candidate hosts for some of these filarioids. Although the detection of members of the Dipetalonema lineage in ticks of significant medical or veterinary interest is of concern, the risk of contracting a tick-borne filarial infection is still largely unknown. The pathogenicity of these filarioids, their epidemiology, developmental cycles, and mechanisms of transmission by South American tick species now require further study.

show abstract

Hallazgos clínicos en perros parasitados por Dipetalonema dracunculoides

Cited by 4 publications

References 2 publications

Multi-locus sequence analysis unveils a novel genus of filarial nematodes associated with ticks in French Guiana

Multi-locus sequence analysis unveils a novel genus of filarial nematodes associated with ticks in French Guiana

Nodular presentation of Dirofilaria repens infection in a cat mimicking a fibrosarcoma

Molecular detection of Cercopithifilaria, Cruorifilaria and Dipetalonema-like filarial nematodes in ticks of French Guiana

Contact Info

Product

Resources

About