PGL3 syndrome is caused by mutations in the SDHC gene. At present, only a few families affected by SDHC mutations have been reported in the literature and in each of them the clinical presentation was characterised by paragangliomas located only in the head and neck regions. No evidence of thoracic or abdominal catecholamine-secreting chromaffin tumours has been reported to date. We report the case of a 15-year-old girl with hypertension and a norepinephrine-secreting abdominal paraganglioma who was found to harbour a novel nonsense SDHC mutation, demonstrating that the clinical presentation of PGL3 syndrome can be more diverse than expected.
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http://dx.doi.org/10.1136/jmg.2007.051045 | DOI Listing |
Int J Biol Macromol
January 2025
Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education and Key Laboratory of Basic Pharmacology of Guizhou Province and Laboratory Animal Center, Zunyi Medical University, Zunyi, Guizhou, China. Electronic address:
Parkinson's disease (PD) is an age-related and progressive neurodegenerative disease. Growing evidences indicate that CD4 T cell dysfunction plays an essential role in the progress of PD. Here, in LPS-induced PD mice, we isolated midbrain CD4 T cell and peripheral CD4 T cell to perform proteomics, and then screened a total of 167 co-expression proteins via integrated bioinformatics analysis.
View Article and Find Full Text PDFExp Ther Med
February 2025
Molecular Pathology, Azienda USL-IRCCS di Reggio Emilia, I-42123 Reggio Emilia, Italy.
Pheochromocytomas and paragangliomas (PPGLs) are rare neuroendocrine tumors with an annual incidence of ~2 cases per million worldwide. The hereditary form is more likely to present in younger patients. To date, PPGL is considered a complex pathology that is difficult to diagnose.
View Article and Find Full Text PDFCancer Metab
December 2024
Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, 200 First St. SW, Rochester, MN, 55905, USA.
Heterozygosity for loss-of-function alleles of the genes encoding the four subunits of succinate dehydrogenase (SDHA, SDHB, SDHC, SDHD), as well as the SDHAF2 assembly factor predispose affected individuals to pheochromocytoma and paraganglioma (PPGL), two rare neuroendocrine tumors that arise from neural crest-derived paraganglia. Tumorigenesis results from loss of the remaining functional SDHx gene copy, leading to a cell with no functional SDH and a defective tricarboxylic acid (TCA) cycle. It is believed that the subsequent accumulation of succinate competitively inhibits multiple dioxygenase enzymes that normally suppress hypoxic signaling and demethylate histones and DNA, ultimately leading to increased expression of genes involved in angiogenesis and cell proliferation.
View Article and Find Full Text PDFNucleic Acids Res
December 2024
Department of Biochemistry and Microbiology, Rutgers, the State University of New Jersey, 76 Lipman Dr, New Brunswick, NJ 08901, USA.
Staphylococcus aureus has evolved mechanisms to cope with low iron (Fe) availability in host tissues. Staphylococcus aureus uses the ferric uptake transcriptional regulator (Fur) to sense titers of cytosolic Fe. Upon Fe depletion, apo-Fur relieves transcriptional repression of genes utilized for Fe uptake.
View Article and Find Full Text PDFPestic Biochem Physiol
December 2024
College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China. Electronic address:
Rice false smut, caused by Ustilaginoidea virens, is a devastating fungal disease in rice that not only leads to yield reduction but also poses a serious threat to food safety and human health due to the production of numerous mycotoxins. Pydiflumetofen, one of the most promising SDHI fungicides widely used for controlling various plant diseases, lacks available information regarding its antifungal activity against U. virens and the potential risk of resistance development in this pathogen.
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