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Purpose: To develop an algorithm using routine clinical laboratory measurements to identify people at risk for systematic underestimation of glycated hemoglobin (HbA1c) due to p.Val68Met glucose-6-phosphate dehydrogenase (G6PD) deficiency.
Methods: We analyzed 122,307 participants of self-identified Black race across four large cohorts with blood glucose, HbA1c, and red cell distribution width measurements from a single blood draw.
Hemoglobin Variants as Targets for Stabilizing Drugs.
Molecules
January 2025
Faculty of Science, Pavol Jozef Šafárik University in Košice, Park Angelinum 19, 040 01 Košice, Slovakia.
Hemoglobin is an oxygen-transport protein in red blood cells that interacts with multiple ligands, e.g., oxygen, carbon dioxide, carbon monoxide, and nitric oxide.
View Article and Find Full Text PDFNon-Invasive Determination of the Paternal Inheritance in Pregnancies at Risk for β-Thalassaemia by Analyzing Cell-Free Fetal DNA Using Targeted Next-Generation Sequencing.
Int J Mol Sci
January 2025
Molecular Genetics Thalassaemia Department, The Cyprus Institute of Neurology & Genetics, Nicosia 2371, Cyprus.
Non-invasive prenatal testing (NIPT) has been widely adopted for the screening of chromosomal abnormalities; however, its adoption for monogenic disorders, such as β-thalassaemia, has proven challenging. Haemoglobinopathies are the most common monogenic disorders globally, with β-thalassaemia being particularly prevalent in Cyprus. This study introduces a non-invasive prenatal haplotyping (NIPH) assay for β-thalassaemia, utilizing cell-free DNA (cfDNA) from maternal plasma.
View Article and Find Full Text PDFRelevance of Next-Generation Sequencing in the Diagnosis of Thalassemia and Hemoglobinopathies: The Experience of Four Italian Diagnostic Hubs.
Genes (Basel)
December 2024
Laboratory of Medical Genetics, Clinical Pathology UOC, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy.
Unlabelled: Thalassemias and hemoglobinopathies are among the most common genetic diseases worldwide and have a significant impact on public health. The decreasing cost of next-generation sequencing (NGS) has quickly enabled the development of new assays that allow for the simultaneous analysis of small nucleotide variants (SNVs) and copy number variants (CNVs) as deletions/duplications of α- and β-globin genes.
Background/objectives: This study highlighted the efficacy and rapid identification of all types of mutations in the α- and β-globin genes, including silent variants, using the Devyser Thalassemia NGS kit.
Falsely Elevated HbA1c Levels in a Patient with Type 2 Diabetes Mellitus and Multiple Beta Globulin Gene Mutations.
Ann Clin Lab Sci
November 2024
Department of Internal Medicine, Hakuhokai Central Hospital, Hyogo, Japan
We present a patient with type 2 diabetes mellitus and a variant hemoglobin whose HbA1c levels were falsely elevated regardless of the measurement method [high-performance liquid chromatography (HPLC), enzymatic, and immuno-assay] used. The causes of the falsely high HbA1c levels in this patient were investigated. The patient was a 73-year-old man with frequent hypoglycemia on self-monitoring of blood glucose, whose HbA1c level when measured by HPLC (standard mode) and immunoassay was substantially higher than that predicted by continuous blood glucose monitoring or from the patient's glycated albumin level.
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