Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0002986 (Fabry)
 5,646 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A 36-year-old woman was hospitalized because of nephrotic syndrome. On admission, laboratory studies revealed total protein 5.9g/dl, total cholesterol 381mg/dl, urine protein 2-4g/day, C3 68mg/dl(90-185mg/dl) and the immunological tests showed that antinuclear factor, anti-DNA antibodies and the LE cell phenomenon were positive. Renal function was within normal range. After admission, renal biopsy was done. Light microscopic finding showed diffuse membranous glomerulonephritis, and vacuolization of epithelial cells. Immunofluorescent microscopic finding showed a granular specific staining for IgG, IgM, C3 and C1q along the capillary loops. Electron microscopic finding showed subepithelial and subendothelial dense deposits, and visceral epithelial cell cytoplasm containing osmiophilic multilamellar lipoid bodies. In the studies of the enzyme activities, the patient's fibroblast extract demonstrated a partial deficiency of alpha-galactosidase, and urine ceramide trihexoside was positive. But the patient's leukocyte extract did not demonstrate a deficiency of alpha-galactosidase. So Fabry's disease associated with lupus nephritis was diagnosed. It seems that the case of Fabry's disease which is an X-linked disorder caused by deficiency of the lysosomal enzyme alpha-galactosidase, associated with lupus nephritis, is extremely rare.
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PMID:[A case of Fabry's disease associated with lupus nephritis]. 133 14

Methods for the PCR amplification of five polymorphic sites in the region Xq21.33 to Xq24 were developed and used to predict heterozygosity for Fabry disease in informative families. Clones containing polymorphic sites associated with DNA segments DXS17, DXS87, and DXS287, and the alpha-galactosidase A gene were isolated from genomic libraries. Surrounding nucleotide sequences and optimal conditions for amplification of each polymorphic site were determined. These amplifiable polymorphisms provided predictions of heterozygosity for Fabry disease and should be useful for diagnostic linkage analyses in Alport syndrome, X-linked cleft palate and ankyloglossia, Pelizaeus-Merzbacher disease, and X-linked agammaglobulinemia as well as sequence-tagged sites for gene mapping.
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PMID:Amplification of human polymorphic sites in the X-chromosomal region q21.33 to q24: DXS17, DXS87, DXS287, and alpha-galactosidase A. 134 83

Polymerase chain reaction amplification of reverse-transcribed messenger RNA from a patient with Fabry disease revealed a 13-base pair deletion in the 5' region (exon 1) of alpha-galactosidase A complementary DNA. This gene rearrangement was not detected by Southern or Northern analysis. Short direct repeats were present around the breakpoints, and considered to be of pathogenetic significance. Gene diagnosis of the mother and a female cousin was successfully achieved by polymerase chain reaction amplification of genomic DNA; the former as a Fabry disease heterozygote and the latter as a normal homozygote.
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PMID:Fabry disease: detection of 13-bp deletion in alpha-galactosidase A gene and its application to gene diagnosis of heterozygotes. 165 Jan 61

Fabry disease is an X linked recessive disorder of glycosphingolipid metabolism resulting from a deficiency of the lysosomal hydrolase alpha-galactosidase (alpha-gal). Measurement of the enzyme activity, however, is not an accurate method for identification of female carriers among at risk relatives of affected males. The alpha-gal cDNA and gene have been cloned previously and found to provide useful probes for the molecular analysis of affected families but these clones have not been available to us. Thus, to analyse Fabry disease in Nova Scotia, especially within a large kindred known to contain 30 affected males and 50 possible carrier females, we isolated an independent cDNA for alpha-gal. Using this clone as a probe, the mutation in the Nova Scotia kindred was shown not to be a major DNA alteration, but was found to be linked to the rarer allele (frequency 0.20) of the polymorphic NcoI site located 3' to the gene. Affected males from two Nova Scotia families who cannot be associated with the kindred by history were also found to have the rarer NcoI allele, which suggests they are, in fact, part of the kindred. The coupling of the mutation to an infrequent marker also helped carrier identification in the kindred where all of 17 obligate carriers examined, including six who were not identified as carriers by enzyme assays, were found to be heterozygous for the RFLP. Thus, DNA analysis can be used for presymptomatic and prenatal diagnosis in most portions of the Nova Scotia kindred affected with Fabry disease.
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PMID:Fabry disease in a large Nova Scotia kindred: carrier detection using leucocyte alpha-galactosidase activity and an NcoI polymorphism detected by an alpha-galactosidase cDNA clone. 167 24

Fabry disease is an X-linked disorder accompanied with accumulation of glycosphingolipids resulting from the deficient activity of the lysosomal hydrolase, alpha-galactosidase A (alpha-GalA). In the present study, mRNA for alpha-GalA in fibroblasts from an 11-year-old Japanese patient with Fabry disease was examined using the reverse transcriptase-polymerase chain reaction (PCR). The shorter message of alpha-GalA was demonstrated in this patient when compared with the normal control. The complete deletion of exon 4 in the mRNA for alpha-GalA in the patient was disclosed by analysis of cDNA with restriction enzyme digestion and asymmetrical PCR sequencing. The direct sequencing of the genomic DNA demonstrated a single base substitution (G----A) at the 3' end of the consensus sequence of intron 3. This mutation destroyed a splice site in the alpha-GalA, which produced a mutant allele. It was also shown that the mother of the patient had this mutant as well as normal alleles as a heterozygote.
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PMID:A 3' splice site consensus sequence mutation in the intron 3 of the alpha-galactosidase A gene in a patient with Fabry disease. 175 37

Fucosidosis is a rare, autosomal recessive, lysosomal storage disorder caused by a severe deficiency of alpha-L-fucosidase in all tissues. We have conducted a review of fucosidosis, compiling data from published reports and an international questionnaire survey. Seventy-seven patients affected with fucosidosis of which 19 had not been reported before have been identified. A major aim of the present study was to define the natural history of fucosidosis. The clinical picture of fucosidosis consists of progressive mental (95%) and motor (87%) deterioration, coarse facies (79%), growth retardation (78%), recurrent infections (78%), dysostosis multiplex (58%), angiokeratoma corporis diffusum (52%), visceromegaly (44%), and seizures (38%). Whereas the original fucosidosis patients described by Durand et al. (J. Pediatr 75:665-674, 1969) were decerebrate and died before age 5 years, most fucosidosis patients have a slower course of degeneration. Mortality before age 5 years was observed in only 7 patients (9%), whereas 36 patients (64%) reached the second decade. We did not find evidence for the existence of clinical heterogeneity with a rapidly progressive type I and a slowly progressive type II fucosidosis as suggested in the literature. Instead, there seems to exist a wide continuous clinical spectrum. At the biochemical level no heterogeneity in residual fucosidase enzyme activity or cross-reacting immunoreactive fucosidase protein was observed. At the DNA level at least 4 different mutations must be responsible for fucosidosis. These genotypic differences however do not explain the observed phenotypic differences.
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PMID:Fucosidosis revisited: a review of 77 patients. 201 22

Efforts were directed to identify the specific mutations in the alpha-galactosidase A (alpha-Gal A) gene which cause Fabry disease in families of Japanese origin. By polymerase-chain-reaction-amplification of DNA from reverse-transcribed mRNA and genomic DNA, different point mutations were found in two unrelated Fabry hemizygotes. A hemizygote with classic disease manifestations and no detectable alpha-Gal A activity had a G-to-A transition in exon 1 (codon 44) which substituted a termination codon (TAG) for a tryptophan codon (TGG) and created an NheI restriction site. This point mutation would predict a truncated alpha-Gal A polypeptide, consistent with the observed absence of enzymatic activity and a classic Fabry phenotype. In an unrelated Japanese hemizygote who had an atypical clinical course characterized by late-onset cardiac involvement and significant residual alpha-Gal activity, a G-to-A transition in exon 6 (codon 301) resulted in the replacement of a glutamine for an arginine residue. This amino acid substitution apparently altered the properties of the enzyme such that sufficient enzymatic activity was retained to markedly alter the disease course. Identification of these mutations permitted accurate molecular heterozygote diagnosis in these families.
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PMID:Identification of point mutations in the alpha-galactosidase A gene in classical and atypical hemizygotes with Fabry disease. 217 31

Fabry disease, an X-linked inborn error of glycosphingolipid catabolism, results from the deficient activity of the lysosomal hydrolase, alpha-galactosidase A. Previously, the diagnosis of affected hemizygous males and heterozygous females was based on clinical findings and the levels of alpha-galactosidase A activity in easily obtained sources such as plasma and isolated lymphocytes or granulocytes. Since the gene encoding alpha-galactosidase A undergoes random X-inactivation, the expressed level of enzymatic activity in females heterozygous for the disease gene may vary significantly, thereby making accurate carrier detection difficult. The recent cloning and characterization of the full-length cDNA encoding human alpha-galactosidase A now permits the accurate diagnosis of affected hemizygotes and heterozygous females. In families with gene rearrangements or an altered restriction endonuclease cleavage site, precise diagnosis can be accomplished by Southern hybridization analysis using the alpha-galactosidase A cDNA as probe. In families with normal restriction patterns, two restriction fragment length polymorphisms have been identified in and adjacent to the alpha-galactosidase A gene which also allow precise hemizygote and heterozygote diagnosis. In addition, the recent identification of polymorphic, random DNA sequences (DXS17 and DXS87) located near the alpha-galactosidase A locus permits molecular diagnosis in informative families. Further evaluation of DXS17, DXS87 and other closely linked random DNA probes is required in order to determine their informativeness, proximity to the alpha-galactosidase A locus and, hence, accuracy for molecular diagnosis.
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PMID:Fabry disease: molecular diagnosis of hemizygotes and heterozygotes. 283 Oct 42

Anderson Fabry disease is an X-linked lysosomal storage disorder caused by alpha-galactosidase A deficiency. Hemizygous males and some heterozygous females develop renal failure and cardiovascular complications in early adult life. We have investigated six large UK families to assess the possible linkage of five polymorphic DNA probes to the Anderson Fabry locus, previously localised to Xq21-24. No recombination was found between Anderson Fabry disease and DXS87, DXS88 and DXS17, which gave lodmax = 6.4, 6.4 and 5.8 respectively at theta = 0.10, (upper confidence limit 0.10). DXS3 gave lodmax 2.9 at theta = 0.10 (upper confidence limit 0.25). DXYS1 was excluded from linkage. The best fit map (DXYS1/DXS3) theta = 0.192 (DXS17/DXS87/DXS88/Anderson Fabry locus) provided no information about the order of loci in parentheses due to the absence of recombinants. The close linkage of DXS17, DXS87 and DXS88, together with alpha-galactosidase A estimation, can be used for antenatal diagnosis and carrier detection until the application of a gene specific probe has been evaluated.
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PMID:Anderson Fabry disease, a close linkage with highly polymorphic DNA markers DXS17, DXS87 and DXS88. 289 May 70

Anderson-Fabry disease is an X-linked lysosomal storage disorder due to alpha-galactosidase A deficiency. In affected males there is a high mortality in early adult life due to renal failure and cardiovascular complications. We describe our preliminary results from genetic linkage studies in five families using two polymorphic DNA probes, DXS17 and DXYS1, mapping to an area on the long arm of the X chromosome between Xq13-22. DXS17 identified a Taql polymorphism closely linked to the disease locus in three families (lodmax Z = 4.23. at a recombination fraction decreases theta = 0.0). Restriction fragment length polymorphisms detected by DXYS1 were not linked.
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PMID:Anderson-Fabry disease--family linkage studies using two polymorphic X-linked DNA probes. 290 72


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