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- W2369969216 abstract "Definitive diagnosis of Creutzfeldt-Jakob disease (CJD) requires demonstration of infective prion protein (PrP(Sc)) in brain tissues by immunohistochemistry or immunoblot, making antemortem diagnosis of CJD difficult. The World Health Organization (WHO) recommends detection of 14-3-3 protein in cerebrospinal fluid (CSF) in cases of dementia, with clinical correlation, as a useful diagnostic marker for CJD, obviating the need for brain biopsy. This facility is currently available in only a few specialized centers in the West and no commercial kit is available for clinical diagnostic use in India. Hence the objective of this study was to develop an in-house sensitive assay for quantitation of 14-3-3 protein and to evaluate its diagnostic potential to detect 14-3-3 proteins in CSF as a biomarker in suspected cases of CJD.A minigene expressing the core 14-3-3 protein was synthesized by overlapping polymerase chain reaction (PCR) and the recombinant protein was produced by employing a bacterial expression system. Polyclonal antibodies raised in rabbit against the purified recombinant protein were used for developing a dot blot assay with avidin-biotin technology for signal amplification and quantitation of 14-3-3 protein in CSF.The results in the present study suggest the diagnostic potential of the dot blot method with about 10-fold difference (P< 0.001) in the CSF levels of 14-3-3 protein between the CJD cases (N= 50) and disease controls (N= 70). The receiver operating characteristic (ROC) analysis of the results suggested an optimal cutoff value of 2 ng/mL.We have developed an indigenous, economical, and sensitive dot blot method for the quantitation of 14-3-3 protein in CSF." @default.
- W2369969216 created "2016-06-24" @default.
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- W2369969216 date "2016-01-01" @default.
- W2369969216 modified "2023-10-17" @default.
- W2369969216 title "Development of a dot blot assay with antibodies to recombinant “core” 14-3-3 protein: Evaluation of its usefulness in diagnosis of Creutzfeldt–Jakob disease" @default.
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- W2369969216 doi "https://doi.org/10.4103/0972-2327.176867" @default.
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