Discrimination between active and inactive neurocysticercosis by metacestode excretory/secretory antigens of Taenia solium in an enzyme-linked immunosorbent assay.

2002 ◽  
Vol 66 (6) ◽  
pp. 777-781 ◽  
Author(s):  
José L Molinari ◽  
Julio Sotelo ◽  
Patricia Tato ◽  
Yazmin de la Garza ◽  
Esperanza García-Mendoza ◽  
...  
2021 ◽  
Vol 8 ◽  
Author(s):  
Lucrecia Acosta Soto ◽  
Lucy Anne Parker ◽  
María José Irisarri-Gutiérrez ◽  
Javier Arturo Bustos ◽  
Yesenia Castillo ◽  
...  

Cysticercosis is a parasitic infection caused by the metacestode larval stage (cysticercus) of Taenia solium. In humans, cysticercosis may infect the central nervous system and cause neurocysticercosis, which is responsible for over 50,000 deaths per year worldwide and is the major cause of preventable epilepsy cases, especially in low-income countries. Cysticercosis infection is endemic in many less developed countries where poor hygiene conditions and free-range pig management favor their transmission. A cross-sectional study was conducted in 680 children from a rural primary school in Gakenke district (Northern province of Rwanda). Stool samples were collected from participants and analyzed using the Kato-Katz method (KK), formol-ether concentration (FEC), and/or copro-antigen enzyme-linked immunosorbent assay (CoAg-ELISA) to detect taeniasis. Blood samples were collected and analyzed using enzyme-linked immunoelectrotransfer blot (EITB) and antigen enzyme-linked immunosorbent assay (Ag-ELISA) to detect human cysticercosis. The overall proportion of taeniasis positivity was 0.3% (2/680), and both cases were also confirmed by CoAg-ELISA. A total of 13.3% (76/572) of the children studied were positive to cysticercosis (T. solium-specific serum antibodies detected by EITB), of whom 38.0% (27/71) had viable cysticercus (T. solium antigens by Ag-ELISA). This study provides evidence of the highest cysticercosis prevalence reported in Rwanda in children to date. Systematic investigations into porcine and human cysticercosis as well as health education and hygiene measures for T. solium control are needed in Gakenke district.


Author(s):  
Lúcia M. BRAGAZZA ◽  
Adelaide J. VAZ ◽  
Afonso D.C. PASSOS ◽  
Osvaldo M. TAKAYANAGUI ◽  
Paulo M. NAKAMURA ◽  
...  

Considering the impact of cysticercosis on public health, especially the neurologic form of the disease, neurocysticercosis (NC), we studied the frequency of positivity of anti-Taenia solium cysticercus antibodies in serum samples from 1,863 inhabitants of Cássia dos Coqueiros, SP, a municipal district located 80 km from Ribeirão Preto, an area considered endemic for cysticercosis. The 1,863 samples were tested by enzyme linked immunosorbent assay (ELISA) using an antigenic extract from Taenia crassiceps vesicular fluid (Tcra). The reactive and inconclusive ELISA samples were tested by immunoblotting. Of the 459 samples submitted to immunoblotting, 40 were strongly immunoreactive to the immunodominant 18 and 14 kD peptides. Considering the use of immunoblotting as confirmatory due to its high specificity, the anti-cysticercus serum prevalence in this population was 2.1%.


1982 ◽  
Vol 31 (2) ◽  
pp. 364-369 ◽  
Author(s):  
Arwin R. Diwan ◽  
Millicent Coker-Vann ◽  
Paul Brown ◽  
D. B. Subianto ◽  
D. Carleton Gajdusek ◽  
...  

Author(s):  
Alvionita Alexther Lingga ◽  
Ida Bagus Ngurah Swacita ◽  
I Ketut Suada

Sistiserksosis merupakan penyakit zoonosis disebabkan oleh larva cacing Taenia solium yang berdampak serius pada kesehatan hewan maupun manusia. Papua merupakan salah satu daerah endemis sistiserkosis di Indonesia. Penelitian ini bertujuan untuk mengetahui seroprevalensi sistiserkosis pada babi di wilayah Wamena, Papua. Sebanyak seratus sebelas sampel serum babi yang disampling dari wilayah Wamena kemudian diuji dengan Enzyme Linked Immunosorbent Assay (ELISA). Hasil penelitian menunjukkan bahwa seroprevalensi sistiserkosis pada sampel babi tersebut sebanyak 39,64% (44/111). Dapat disimpulkan bahwa seroprevalensi sistiserkosis pada sampel babi dari Wilayah Wamena, Papua sangat tinggi, dengan demikian maka diperlukan program untuk memberantas penyakit ini oleh instansi terkait di Wilayah Wamena, Papua


1999 ◽  
Vol 6 (4) ◽  
pp. 479-482 ◽  
Author(s):  
Kerstin Hubert ◽  
Abel Andriantsimahavandy ◽  
Alain Michault ◽  
Matthias Frosch ◽  
Fritz A. Mühlschlegel

ABSTRACT A Taenia solium metacestode cDNA expression library in the lambda ZAPII vector was screened with pooled sera from patients with neurocysticercosis. Sixty primary clones were identified and shown to belong to two classes. The clones NC-3 and NC-9 did not reveal any significant homologies to sequences deposited in the databases and were further characterized. Both recombinant antigens were expressed as glutathione S-transferase fusion proteins and applied for serological diagnosis of human cysticercosis. An enzyme-linked immunosorbent assay was established and evaluated with 27 serum samples of La Réunion and Madagascar patients with cysticercosis. Diagnosis in these patients was established with radiological and serological procedures. For antigen NC-3 a sensitivity of 96.3% and a specificity of 91.5% for the serodiagnosis were achieved. In contrast, the sensitivity of antigen NC-9 was only 33.3%.


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