Acute myelitis is a common neurological manifestation due to different causes, but in about 15-30% of cases its etiology remains unknown (idiopathic myelitis). Myelitis represents the most common manifestation of neurotoxocariasis, the infection of the human nervous system by larvae of the nematode Toxocara spp.; however, despite the high seroprevalence worldwide, its contribution to the burden of disease has not been assessed. We evaluated the presence of antibodies against Toxocara spp. in cerebrospinal fluid (CSF) from a sample of 28 patients with a diagnosis of idiopathic myelitis (N = 20) or encephalomyelitis (N = 8) who attended the Neurological Unit of the University Hospital of Catania, Sicily. Antibodies against Toxocara spp. were measured using a multiplex bead-based assay and Toxocara immunoblot using Toxocara canis excretory secretory antigens. All samples tested negative for the presence of anti-T. canis IgG antibodies. In this series, we found no evidence of a contribution of neurotoxocariasis to the burden of myelitis.
Lack of evidence for Toxocara infection in Italian myelitis patients
Nicoletti A.;Cicero C. E.;Portaro G.;Patti F.;Sofia V.;Zappia M.
2020-01-01
Abstract
Acute myelitis is a common neurological manifestation due to different causes, but in about 15-30% of cases its etiology remains unknown (idiopathic myelitis). Myelitis represents the most common manifestation of neurotoxocariasis, the infection of the human nervous system by larvae of the nematode Toxocara spp.; however, despite the high seroprevalence worldwide, its contribution to the burden of disease has not been assessed. We evaluated the presence of antibodies against Toxocara spp. in cerebrospinal fluid (CSF) from a sample of 28 patients with a diagnosis of idiopathic myelitis (N = 20) or encephalomyelitis (N = 8) who attended the Neurological Unit of the University Hospital of Catania, Sicily. Antibodies against Toxocara spp. were measured using a multiplex bead-based assay and Toxocara immunoblot using Toxocara canis excretory secretory antigens. All samples tested negative for the presence of anti-T. canis IgG antibodies. In this series, we found no evidence of a contribution of neurotoxocariasis to the burden of myelitis.File | Dimensione | Formato | |
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