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Enhancing newborn screening sensitivity and specificity for missed NICCD using selected amino acids and acylcarnitines.
Orphanet J Rare Dis
January 2025
Department of Genetics and Metabolism, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, No. 3333 Binsheng Road, Binjiang District, Hangzhou, 310053, Zhejiang, China.
Purpose: To enhance the detection rate of Neonatal Intrahepatic Cholestasis caused by Citrin Deficiency (NICCD) through newborn screening (NBS), we analyzed the metabolic profiles of missed patients and proposed a more reliable method for early diagnosis.
Methods: In this retrospective study, NICCD patients were classified into "Newborn Screening" (64 individuals) and "Missed Screening" (52 individuals) groups. Metabolic profiles were analyzed using the non-derivatized MS/MS Kit, and genetic mutations were identified via next-generation sequencing and confirmed by Sanger sequencing.
Human induced pluripotent stem cell line (PNUSCRi005-A) generated from severe type of Hunter syndrome patient carrying exonic deletion (exon 4-7 del) in in human iduronate 2-sulfatase gene.
Stem Cell Res
December 2024
Division of Medical Genetics and Metabolism, Department of Pediatrics, Pusan National University School of Medicine, Pusan National University Children's Hospital, Yangsan 50612, Gyeongsangnam-do, Republic of Korea. Electronic address:
Mucopolysaccharidosis Type Ⅱ, as Known as Hunter syndrome, is a rare X-liked genetic disease caused by mutations in iduronate-2-sulfatase (IDS) gene. We obtained peripheral blood mononuclear cells (PBMCs) from a patient with a severe type of Hunter syndrome carrying c.418 + 495_1006 + 1304 deletion in the IDS gene.
View Article and Find Full Text PDFA human induced pluripotent stem cell line, NIMHi016-A, established from fibroblasts of a neuromuscular disease patient carrying PGK1/p. Asn5Lys variant.
Stem Cell Res
January 2025
Department of Biophysics, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, India. Electronic address:
PGK1 (phosphoglycerate kinase-1) is required for ATP production in the body. Mutation in the PGK1 gene causes a rare, inherited metabolic disorder causing deficiency of enzyme PGK1, leading to hemolytic anemia, neurological symptoms, and muscle weakness. We generated induced pluripotent stem cells (iPSCs) from a patient carrying a PGK1 variant by isolating fibroblasts from skin punch biopsy and reprogramming using CytoTune iPS 2.
View Article and Find Full Text PDFTargeted Next-Generation Sequencing in Succinate Dehydrogenase-Deficient GI Stromal Tumor Identifies Actionable Alterations in the PI3K/mTOR Pathway.
JCO Precis Oncol
January 2025
Sarcoma Translational Research Group, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain.
Purpose: Less than 5% of GI stromal tumors (GISTs) are driven by the loss of the succinate dehydrogenase (SDH) complex, resulting in a pervasive DNA hypermethylation pattern that leads to unique clinical features. Advanced SDH-deficient GISTs are usually treated with the same therapies targeting KIT and PDGFRA receptors as those used in metastatic GIST. However, these treatments display less activity in the absence of alternative therapeutic options.
View Article and Find Full Text PDFComparative analysis of EGFR mutations in circulating tumor DNA and primary tumor tissues from lung cancer patients using BEAMing PCR.
Sci Rep
January 2025
Translational Research Laboratory, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Navi Mumbai, India.
In this study, we measured human epidermal growth factor receptor (EGFR) mutations in both tissue and circulating tumor DNA (ctDNA) by using beads, emulsions, amplifications and magnetic polymerase chain reaction (BEAMing PCR). Noninvasive mutation detection by assessing circulating tumor DNA (ctDNA) offers many advantages over tumor biopsy. One hundred non-small cell lung cancer (NSCLC) patients were enrolled, and both preoperative plasma samples and formalin-fixed and paraffin-embedded (FFPE) samples were collected for the study.
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