Clinica chimica acta; international journal of clinical chemistry
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We really appreciate the comments from Drs. Reibnegger and Fuchs regarding our recent publication "Normalization of urinary pteridines by urine specific gravity for early cancer detection [Clin. Chim. ⋯ Their letter not only provides unique insights that are both relevant and helpful to many researchers engaging in similar studies, but also provides a wonderful opportunity for us to address these potential concerns that may also be shared by other readers. We addressed all of the comments by Drs. Reibnegger and Fuchs in this letter.
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Amyotrophic Lateral Sclerosis (ALS) is a fatal neurodegenerative disease of the motor neuron for which no clinically validated biomarkers have been identified. ⋯ Our results underscore the value of pNFH as a biomarker in ALS. In addition, we identified a variation of the N-glycosylation pattern in ALS, suggesting that this change should be explored in future studies as potential biomarker.