Objective: The aim of this study was to assess the oral health of patients with aspartylglucosaminuria, a heritable lysosomal storage disorder, and to recommend guidelines for treatment.
Study Design: Eighty-two patients with aspartylglucosaminuria and 122 control subjects were examined clinically; in addition, panoramic radiographs were evaluated in 61 patients with aspartylglucosaminuria and 61 control subjects.
Results: High prevalences of caries, gingivitis, and oral Candida (P < .001), extensive gingival overgrowths (18%; P < .001), benign odontogenic tumors or tumorlike lesions (8%; P = .057), reduced maxillary sinuses (P < .001), limited mouth opening (P < .001), and food retention in the mouth (45%) were the major oral findings that distinguished the patients with aspartylglucosaminuria from the control subjects. Adults with aspartylglucosaminuria had diverse oral health problems, early loss of several permanent teeth being the most disabling feature.
Conclusions: Patients with aspartylglucosaminuria appear to be at a higher risk for a number of oral disorders; however, poor oral hygiene and failure to cooperate increase these patients' risk of dental and periodontal diseases, making successful prevention crucial.
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http://dx.doi.org/10.1016/s1079-2104(98)90346-8 | DOI Listing |
Neurol Genet
June 2024
From the Department of Neurology (M.K., K.Y., S.H., D.K., H.Y.), Japanese Red Cross Wakayama Medical Center; Department of Neurology (M.K., S.H.); Department of Pediatrics (N.Y., A. Yokoyama, K.K., T.Y.), Graduate School of Medicine, Kyoto University, Japan; Center for Lysosomal and Metabolic Diseases (M.C.H., C.J.R., S.V., E.M.), Department of Clinical Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands; Department of Neurology (D.K.), Kyoto Kizugawa Hospital; and Department of Pediatrics (A. Yokoyama, A. Yoshida), Japanese Red Cross Wakayama Medical Center, Japan.
Objectives: The causes of intellectual disability (ID) are varied, with as many as 1,400 causative genes. We attempted to identify the causative gene in a patient with long-standing undiagnosed ID.
Methods: Although this was an isolated case with no family history, we searched for the causative gene using trio-based whole-exome sequencing (trio-WES), because severe ID is often caused by genetic variations, and inherited metabolic disorders (IMDs) are assumed to be the cause when regression and epilepsy occur.
Int J Mol Sci
March 2023
Institute of Biochemistry, Medical Faculty, University of Giessen, Friedrichstrasse 24, DE-35390 Giessen, Germany.
Novel treatment strategies are emerging for rare, genetic diseases, resulting in clinical trials that require adequate biomarkers for the assessment of the treatment effect. For enzyme defects, biomarkers that can be assessed from patient serum, such as enzyme activity, are highly useful, but the activity assays need to be properly validated to ensure a precise, quantitative measurement. Aspartylglucosaminuria (AGU) is a lysosomal storage disorder caused by the deficiency of the lysosomal hydrolase aspartylglucosaminidase (AGA).
View Article and Find Full Text PDFJ Inherit Metab Dis
March 2023
Center for Lysosomal and Metabolic Diseases, Department of Clinical Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands.
Oligosaccharidoses, sphingolipidoses and mucolipidoses are lysosomal storage disorders (LSDs) in which defective breakdown of glycan-side chains of glycosylated proteins and glycolipids leads to the accumulation of incompletely degraded oligosaccharides within lysosomes. In metabolic laboratories, these disorders are commonly diagnosed by thin-layer chromatography (TLC) but more recently also mass spectrometry-based approaches have been published. To expand the possibilities to screen for these diseases, we developed an ultra-high-performance liquid chromatography (UHPLC) with a high-resolution accurate mass (HRAM) mass spectrometry (MS) screening platform, together with an open-source iterative bioinformatics pipeline.
View Article and Find Full Text PDFZhonghua Yi Xue Yi Chuan Xue Za Zhi
January 2023
Department of Endocrinology and Metabolic Diseases, Guiyang Maternal and Child Health Care Hospital, Guiyang Children's Hospital, Guiyang, Guizhou 550003, China.
Objective: To explore the genetic basis for a child with Aspartylglucosaminuria (AGU).
Methods: Clinical data of the patient was analyzed. The child was subjected to trio-whole exome sequencing (WES) and copy number variation sequencing (CNV-seq), and candidate variant was verified by Sanger sequencing.
AJNR Am J Neuroradiol
January 2023
From the Department of Radiology (U.R., A.M.T., T.A., T.R.), HUS Medical Imaging Center
Background And Purpose: We investigated global and local properties of the structural brain connectivity networks in aspartylglucosaminuria, an autosomal recessive and progressive neurodegenerative lysosomal storage disease. Brain connectivity in aspartylglucosaminuria has not been investigated before, but previous structural MR imaging studies have shown brain atrophy, delayed myelination, and decreased thalamic and increased periventricular WM T2 signal intensity.
Materials And Methods: We acquired diffusion MR imaging and T1-weighted data from 12 patients with aspartylglucosaminuria (mean age, 23 [SD, 8] years; 5 men), and 30 healthy controls (mean age, 25 [SD, 10] years; 13 men).
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