Journals / Journal of Microbiology and Infectious Diseases / 2020 / Cilt: 10 - Sayı: 03

Real Time Loop Mediated Isothermal Amplification Assay of Urine for Diagnosis of Neurocysticercosis: A Preliminary Observation Study

Pages
154–159
Publication Date
2020-09-15
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Taenia solium cox1 gene was detected in 60% of Urine samples in patients of NCC, overall specificity of LAMP assay was 92%.

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: Neurocysticercosis (NCC) is one of the commonly Neglected tropical disease worldwide.
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Key Findings & Data:LAMP amplified target Taenia solium cox1 gene at 60ºC in 120min.
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Conclusion & Impact:Taenia solium cox1 gene was detected in 60% of Urine samples in patients of NCC, overall specificity of LAMP assay was 92%.
🔬Design:Research Article
📍Scope:2020 Verileri
⚙️Variables:Loop mediated isothermal amplification · Taenia solium · cox1 gene

Abstract

Objectives: Neurocysticercosis (NCC) is one of the commonly Neglected tropical disease worldwide. Improvement in Living conditions with better diagnostics can reduce the incidence of this disease. The burden of NCC is high in areas with poor socio-economic development. Despite high prevalence in India, the diagnostic challenge remains especially when differentiating from tuberculosis which is also common in the same setting. We describe a novel and rapid diagnostic method for NCC, which might add to our diagnostic Repertoire. Methods: It was prospective case control study involving consecutive patients of definite and probable NCC at a tertiary teaching hospital in Northern India. LAMP assay in urine was performed in all the patients. LAMP amplified target Taenia solium cox1 gene at 60ºC in 120min. The results were compared with 24 controls. The specificity, sensitivity, positive predictive value and negative value were calculated using a 2X 2 contingency table. Results: Total of 58 patients recruited, 53 were definitive NCC and 5 had probable NCC based on Del Brutto criteria and 24 volunteers were taken as control all of them underwent urine LAMP of Taenia solium. Taenia solium cox1 gene was detected in 60% of Urine samples in patients of NCC, overall specificity of LAMP assay was 92%. The negative predictive value and positive predictive value of real time LAMP assay was 50% and 95%. Conclusions: Conclusion: Real time urine LAMP assay for Taenia solium gene offers noninvasive, cost effective and rapid method to detect Taenia parasite in patients, in Addition to available investigations. Specially in resource limited setting of endemic countries. J Microbiol Infect Dis 2020; 10(3):154-159.

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Cite This Article

GOYAL, G., PHUKAN, A. C., HUSSAIN, M., LAL, V., MODİ, M., GOYAL, M. K., MAHESH, K. V., SEHGAL, R. (2020). Real Time Loop Mediated Isothermal Amplification Assay of Urine for Diagnosis of Neurocysticercosis: A Preliminary Observation Study. Journal of Microbiology and Infectious Diseases, Cilt: 10 - Sayı: 03, 154–159. https://ajindex.com/articles/89004

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References (15)

  1. Ndimubanzi PC, Carabin H, Budke CM, et al. A systematic review of the frequency of neurocyticercosis with a focus on people with epilepsy. PLoS Negl Trop Dis. 2010; 4(11):e870
  2. García HH, Gonzalez AE, Evans CAW, Gilman RH. Taenia solium cysticercosis. Lancet 2003; 362(9383):547-56
  3. Del Brutto OH, Nash TE, White AC, et al. Revised diagnostic criteria for neurocysticercosis. J Neurol Sci 2017; 372:202-210
  4. Goyal M, Chand P, Modi M, et al. Neurocysticercosis: An uncommon cause of drug-refractory epilepsy in North Indian population. Epilepsia. 2015;56(11):1747–52
  5. Mori Y, Notomi T. Loop-mediated isothermal amplification (LAMP): A rapid, accurate, and cost-effective diagnostic method for infectious diseases. J Infect Chemother 2009;15(2):62-69
  6. Mori Y, Kanda H, Notomi T. Loop-mediated isothermal amplification (LAMP): Recent progress in research and development. J Infect Chemother 2013;19(3):404-411
  7. Nkouawa A, Sako Y, Li T, et al. Evaluation of a loop-mediated isothermal amplification method using fecal specimens for differential detection of Taenia species from humans. J Clin Microbiol 2010;48(9):3350-3352
  8. Gadkar VJ, Goldfarb DM, Gantt S, Tilley PAG. Real-time Detection and Monitoring of Loop Mediated Amplification (LAMP) Reaction Using Self-quenching and De-quenching Fluorogenic Probes. Sci Rep 2018; 8(1):2-11
  9. Del Brutto OH. Diagnostic criteria for neurocysticercosis, revisited. Pathog Glob Health 2012; 106(5):299–304
  10. Nkouawa A, Sako Y, Nakao M, Nakaya K, Ito A. Loop-mediated isothermal amplification method for differentiation and rapid detection of Taenia species. J Clin Microbiol. 2009;47(1):168–74
  11. Goyal G, Phukan AC, Hussain M, et al. Sorting out difficulties in immunological diagnosis of neurocysticercosis: Development and assessment of real time loop mediated isothermal amplification of cysticercal DNA in blood. J Neurol Sci. 2020; 408:116544
  12. Parija M, Biswas R, Harish BN, Parija SC. Detection of specific cysticercus antigen in the urine for diagnosis of neurocysticercosis. Acta Trop 2004; 92(3):253-260
  13. Nagamine K, Hase T, Notomi T. Accelerated reaction by loop-mediated isothermal amplification using loop primers. Mol Cell Probes. 2002;16(3):223-229
  14. Mori Y, Nagamine K, Tomita N, Notomi T. Detection of loop-mediated isothermal amplification reaction by turbidity derived from magnesium pyrophosphate formation. Biochem Biophys Res Commun 2001; 289(1):150-154
  15. Njiru ZK, Mikosza ASJ, Armstrong T, Enya