1/36. Refractory congenital ascites as a manifestation of neonatal sialidosis: clinical, biochemical and morphological studies in a newborn Syrian male infant.A Syrian newborn with coarse facies, hepato-splenomegaly, and refractory ascites is reported. Examination of the ascitic fluid showed vacuolated lymphocytes and thin-layer chromatography of urinary oligosaccharides revealed an abnormal pattern indicative of sialidosis. Despite intensive care, the baby died of respiratory insufficiency 28 days after birth. In cultured skin fibroblasts an increase of the incorporation of [14C]methylamine pointed to excessive lysosomal storage and the demonstration of an isolated deficiency of alpha-N-acetylneuraminidase (sialidase) led to the diagnosis of a sialidosis. At postmortem examination, foam cells were found mostly in bone marrow, liver, and brain. To date very few cases of neonatal sialidosis have been reported, and, to the best of our knowledge, this is the first child with neonatal sialidosis from syria and the first case of neonatal sialidosis studied by the [14C]methylamine incorporation assay.- - - - - - - - - - ranking = 1keywords = storage (Clic here for more details about this article) |
2/36. Hepatosplenomegalic lipidosis: what unless Gaucher? adult cholesteryl ester storage disease (CESD) with anemia, mesenteric lipodystrophy, increased plasma chitotriosidase activity and a homozygous lysosomal acid lipase -1 exon 8 splice junction mutation.A 36-year-old woman was admitted for hepatosplenomegaly and anemia. bone marrow cytology showed "sea-blue histiocytes", vacuolated macrophages and plasma cells. As primary liver disease, malignancy or hematologic disorders were excluded, and plasma chitotriosidase activity was increased 27-fold over control, the presence of a lysosomal storage disease was suspected. Biochemical analysis of skin fibroblasts revealed normal glucocerebrosidase and sphingomyelinase activity, but lipid analysis showed a more than 15-fold accumulation of cholesterol esters within the cells. The activity of lysosomal acid lipase (LAL) in fibroblast homogenates was decreased to 12% of control subjects. Mutational analysis of the patient's blood showed the homozygous G-->A mutation at position -1 of the exon 8 splice donor site (E8SJM-allele) known for adult cholesteryl ester storage disease (CESD); the polymorphic background was that of the complex haplotype -6Thr, 2Gly, 894 G-->A. Based on clinical, laboratory, cytological and and biochemical findings, CESD can clearly be separated from other more frequent inherited lysosomal storage diseases, e.g. atypical forms of gaucher disease.- - - - - - - - - - ranking = 67.730241946752keywords = storage disease, lysosomal storage, storage (Clic here for more details about this article) |
3/36. Heterogenous glycogen storage disease in one family.Three brothers, aged 17, 14 and 4 ye presented. Deficiency of glucose-6-phosphatase was associated with deficiency of acid maltase in one and debranching enzyme in the other. Enzyme analyses could not be performed in the youngest sibling.- - - - - - - - - - ranking = 37.280766596161keywords = storage disease, storage (Clic here for more details about this article) |
4/36. Type Ib glycogenosis.Type Ib glycogenosis is a rare glycogen storage disorder resulting from a defect in the enzyme, glucose-6-phosphatase microsomal translocase. We report a case of Type Ib glycogenosis in an 18 month-old male child who presented with a history of hypoglycemic seizures and recurrent infections and had a massive hepatomegaly, recurrent hypoglycemia, hyperuricemia, hypertriglyceridemia, neutropenia and fasting lactacidemia which decreased sharply on glucose administration.- - - - - - - - - - ranking = 1keywords = storage (Clic here for more details about this article) |
5/36. Hepatosplenomegaly and progressive neurological symptoms - Late manifestation of Niemann-Pick disease type C - a case report -.Niemann-Pick disease type C is an inborn error of metabolism that affects lipid degradation and storage. Hepatosplenomegaly and progressive neurological symptoms are the main clinical features. We present a case of an adult-onset type of Niemann-Pick disease in a 33-year-old woman who initially presented with dysarthria. At first, laboratory findings suggested Wilson's disease. laparoscopy showed macroscopic signs of liver cirrhosis and histology did not confirm Wilson's disease. After bone marrow biopsy showed characteristic sea-blue histiocytes, Niemann-Pick disease was suspected and confirmed by filipin stain of cultured fibroblasts.Though rarely encountered, lipid storage disease should be suspected especially in younger patients with organomegaly and progressive signs of neurologic disease.- - - - - - - - - - ranking = 10.32019164904keywords = storage disease, storage (Clic here for more details about this article) |
6/36. A patient with type 2 Gaucher's disease with respiratory disease.A 5-month-old boy had respiratory problems and gastroesophageal reflux. Electron microscopy of a tracheal biopsy specimen showed accumulation of lamellar bodies in the columnar cells indicative of lysosomal storage disease. Subsequently, the child had neurologic symptoms and hepatosplenomegaly, and the diagnosis of Gaucher's disease type 2 was made.- - - - - - - - - - ranking = 10.564641850775keywords = storage disease, lysosomal storage, storage (Clic here for more details about this article) |
7/36. A novel mutation (G233D) in the glycogen phosphorylase gene in a patient with hepatic glycogen storage disease and residual enzyme activity.We identified a novel mutation in the glycogen phosphorylase gene (PGYL) in a Chinese patient with glycogen storage disease (GSD) type VI. The patient presented with gross hepatomegaly since the age of two without history of any hypoglycemic attack. Otherwise, he was largely asymptomatic. Liver tissue enzyme assays revealed a mild deficiency of total glycogen phosphorylase. Both PGYL and PHKA2 genes were sequenced. The patient was homozygous of a missense mutation G233D in PGYL. This location forms a hairpin turn secondary structure and the small glycine residue is completely conserved in all the orthologous proteins from escherichia coli to mammals. This is the sixth reported mutation of this form of GSD.- - - - - - - - - - ranking = 46.600958245202keywords = storage disease, storage (Clic here for more details about this article) |
8/36. Defects of the mitochondrial respiratory chain complexes in three pediatric cases with hypotonia and cardiac involvement.Three children displaying hypotonia, cardiac involvement and defects of the mitochondrial respiratory chain complexes are reported. The first case showed severe neonatal hypotonia, failure to thrive, hepatomegaly, dilation of the right cardiac cavities, profound lactic acidosis and amino aciduria. The boy died at the age of 7 weeks. In the second case hypotonia, severe cardiomyopathy, cyclic neutropenia, lactic acidosis and 3-methylglutaconic aciduria occurred. The boy died at the age of 27 months. The third case presented at the age of 16 months as an acute hypokinetic hypertrophic cardiomyopathy with transient hypotonia and mild lactic acidosis. Spontaneous clinical remission occurred. In all cases muscle biopsy was performed. Morphological studies failed to show ragged-red fibers but there was lipid storage myopathy and decreased cytochrome c oxidase activity. Biochemical studies confirmed the cytochrome c oxidase deficiency in muscle in all cases. It was associated with complex I III deficiency in case 1 and with severe deficits of all respiratory chain complexes in case 2. Post-mortem studies in case 1 indicated that complex IV was reduced in the liver but not in the heart and quantitative analysis of mtDNA revealed a depletion in muscle. Cases 1 and 2 shared some clinical features with fatal infantile myopathy associated with cytochrome c oxidase deficiency, while case 3 displayed a very unusual clinical presentation. The histochemical enzyme reaction of cytochrome c oxidase is useful for the diagnosis of mitochondrial myopathy because ragged-red fibers may be lacking. Finally, biochemical measurement of the different mitochondrial respiratory chain complexes is required because multiple defects are frequent and occasionally related to mtDNA depletion.- - - - - - - - - - ranking = 1keywords = storage (Clic here for more details about this article) |
9/36. adult onset Niemann-Pick disease type C presenting with dementia and absent organomegaly.A 39-year-old female presented to the Bryan memory disorders Clinic at Duke University with a 7-year history of an atypical progressive dementia, mildly impaired vertical gaze, dysarthria and mild ataxia. There was no evidence of organomegaly by clinical examination or by radionuclide liver/spleen scan. brain biopsy disclosed a neuronal storage disorder characterized by ballooned neurons filled with oligo-lamellar cytosomes and lipid droplets. Cultured skin fibroblasts had diminished sphingomyelinase activity and impaired cholesterol esterification, although peripheral leukocyte sphingomyelinase activity was normal. Two years after biopsy, follow-up examination revealed marked progression of vertical gaze paralysis and ataxia. This case expands the clinical spectrum of Niemann-Pick disease type C by presenting in adulthood with subtle neurologic abnormalities; no visceromegaly and profound dementia.- - - - - - - - - - ranking = 1keywords = storage (Clic here for more details about this article) |
10/36. safety and efficacy of treatment of pediatric cholesteryl ester storage disease with lovastatin.The aim of this study was to prospectively assess the safety and efficacy of lovastatin in the treatment of cholesteryl ester storage disease in siblings who were ages 11.6 and 5 y at the beginning of treatment. Mean total and LDL cholesterol in the male proband, 7.40 and 5.68 mmol/L, respectively, on diet alone, fell 30% to 5.2 (p < or = 0.001) and 31% to 3.9 mmol/L (p < or = 0.001) on lovastatin 40 mg/d over 3.3 y, with simultaneous resolution of hepatosplenomegaly. In his sister, on lovastatin 20 mg/d for 1.5 y, total and LDL cholesterol fell, but not significantly; her hepatosplenomegaly was also reduced on treatment. lovastatin was well tolerated without overt side effects or complications and without adverse changes in liver function tests or creatine phosphokinase. Normal and expected accretion of height and weight occurred during the treatment period for both children. lovastatin appears to be a safe and effective treatment for pediatric cholesteryl ester storage disease.- - - - - - - - - - ranking = 55.921149894242keywords = storage disease, storage (Clic here for more details about this article) |
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