Beta-mannosidosis: prenatal biochemical and morphological characteristics. 1984

M Z Jones, and E J Rathke, and K Cavanagh, and L W Hancock

Caprine beta-mannosidosis, an autosomal recessive disorder of glycoprotein catabolism, as yet undetected in man, was expressed in a 96/150 day gestation goat fetus. Deficiency of plasma, kidney, brain, liver and skin fibroblast acidic beta-mannosidase activity was associated with the accumulation of tissue oligosaccharides. Characteristic lucent cytoplasmic lysosomal storage vacuoles were present in the brain, thyroid, kidney and other tissues. Axonal spheroids were present in the central nervous system. The biochemical and morphological prenatal expressions of beta-mannosidosis which were documented by this investigation may facilitate the identification of the disease in man.

UI MeSH Term Description Entries
D007668 Kidney Body organ that filters blood for the secretion of URINE and that regulates ion concentrations. Kidneys
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D008247 Lysosomes A class of morphologically heterogeneous cytoplasmic particles in animal and plant tissues characterized by their content of hydrolytic enzymes and the structure-linked latency of these enzymes. The intracellular functions of lysosomes depend on their lytic potential. The single unit membrane of the lysosome acts as a barrier between the enzymes enclosed in the lysosome and the external substrate. The activity of the enzymes contained in lysosomes is limited or nil unless the vesicle in which they are enclosed is ruptured or undergoes MEMBRANE FUSION. (From Rieger et al., Glossary of Genetics: Classical and Molecular, 5th ed). Autolysosome,Autolysosomes,Lysosome
D008297 Male Males
D008361 Mannosidases Glycoside hydrolases that catalyze the hydrolysis of alpha or beta linked MANNOSE. Mannosidase
D008363 alpha-Mannosidosis An inborn error of metabolism marked by a defect in the lysosomal isoform of ALPHA-MANNOSIDASE activity that results in lysosomal accumulation of mannose-rich intermediate metabolites. Virtually all patients have psychomotor retardation, facial coarsening, and some degree of dysostosis multiplex. It is thought to be an autosomal recessive disorder. Mannosidosis, alpha B, Lysosomal,Alpha-D-Mannosidosis,Alpha-Mannosidase B Deficiency,Alpha-Mannosidosis, Type I,Lysosomal Alpha B Mannosidosis,Lysosomal alpha-D-Mannosidase Deficiency,Mannosidosis, alpha B Lysosomal,alpha Mannosidase B Deficiency,alpha-Mannosidase Deficiency,Deficiencies, Lysosomal alpha-D-Mannosidase,Deficiencies, alpha-Mannosidase,Deficiency, Lysosomal alpha-D-Mannosidase,Deficiency, alpha-Mannosidase,Lysosomal alpha D Mannosidase Deficiency,Lysosomal alpha-D-Mannosidase Deficiencies,alpha Mannosidase Deficiency,alpha Mannosidosis,alpha-D-Mannosidase Deficiencies, Lysosomal,alpha-D-Mannosidase Deficiency, Lysosomal,alpha-Mannosidase Deficiencies,alpha-Mannosidoses
D008854 Microscopy, Electron Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. Electron Microscopy
D009844 Oligosaccharides Carbohydrates consisting of between two (DISACCHARIDES) and ten MONOSACCHARIDES connected by either an alpha- or beta-glycosidic link. They are found throughout nature in both the free and bound form. Oligosaccharide
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D011296 Prenatal Diagnosis Determination of the nature of a pathological condition or disease in the postimplantation EMBRYO; FETUS; or pregnant female before birth. Diagnosis, Prenatal,Fetal Diagnosis,Fetal Imaging,Fetal Screening,Intrauterine Diagnosis,Antenatal Diagnosis,Antenatal Screening,Diagnosis, Antenatal,Diagnosis, Intrauterine,Prenatal Screening,Antenatal Diagnoses,Antenatal Screenings,Diagnosis, Fetal,Fetal Diagnoses,Fetal Imagings,Fetal Screenings,Imaging, Fetal,Intrauterine Diagnoses,Prenatal Diagnoses,Prenatal Screenings,Screening, Antenatal,Screening, Fetal,Screening, Prenatal

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