Publications by authors named "Rania M Kamel"

Article Synopsis
  • The kidneys are crucial for producing tyrosine (Tyr) from phenylalanine (Phe), but in chronic kidney disease (CKD), this process is impaired, leading to lower Tyr/Phe ratios in patients.
  • A new, cost-effective High-Performance Thin-Layer Chromatography (HPTLC) method was developed to measure Tyr and Phe levels in serum using a specific mobile phase and denser scanning techniques.
  • The method's effectiveness was validated for selectivity, linearity, precision, and accuracy, showing high separation efficiency and eco-friendliness, and successfully applied to human serum samples.
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In recent years, there has been considerable interest in using amino acids like tryptophan (Trp) and tyrosine (Tyr) as biomarkers for various diseases, including type 2 diabetes mellitus (T2D). In diseases like T2D, the metabolism of Trp and Tyr is altered. The activity of enzymes involved in Trp metabolism increases, leading to a decrease in its serum level.

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Liquid biopsy analysis represents a suitable alternative analysis procedure in several cases where no tumor tissue is available or in poor patient conditions. Amino acids can play a crucial role in aiding cancer diagnosis. Monitoring of tryptophan (Trp) catabolism can aid in tracking cancer progression.

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