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Wolman's Disease

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https://www.readbyqxmd.com/read/27878737/sebelipase-alfa-a-review-in-lysosomal-acid-lipase-deficiency
#1
James E Frampton
Sebelipase alfa (Kanuma(®), Kanuma™), the first commercially available recombinant human lysosomal acid lipase (LAL), is approved in various countries worldwide, including those of the EU, the USA and Japan, as a long-term enzyme replacement therapy for patients diagnosed with LAL deficiency (LAL-D), an ultra-rare, autosomal recessive, progressive metabolic liver disease. In an ongoing study in nine infants presenting with early-onset LAL-D (Wolman disease), open-label treatment with sebelipase alfa significantly improved 1-year survival compared with historical controls...
November 23, 2016: American Journal of Cardiovascular Drugs: Drugs, Devices, and Other Interventions
https://www.readbyqxmd.com/read/27720570/-wolman-disease
#2
L Ben Hassine, L Lahmar, H Louati, W Douira, I Bellagha
No abstract text is available yet for this article.
October 6, 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/27376161/sebelipase-alfa-enzymatic-replacement-treatment-for-lysosomal-acid-lipase-deficiency
#3
REVIEW
D M Paton
Sebelipase alfa was approved for use in 2015 for patients suffering from lysosomal acid lipase deficiency in either of its two forms. The more severe, early-onset form, Wolman disease, occurs in young infants in whom it is normally fatal within the first year of life. Sebelipase alfa has allowed a small number of such infants to achieve a relatively normal growth rate and to survive for 2 or more years. In older children and adults, the enzyme has corrected their dyslipidemia and produced significant improvement in markers of hepatic function...
May 2016: Drugs of Today
https://www.readbyqxmd.com/read/27127007/shwachman-diamond-syndrome-presenting-with-early-ichthyosis-associated-dermal-and-epidermal-intracellular-lipid-droplets-hypoglycemia-and-later-distinctive-clinical-sds-phenotype
#4
Emmanuel Scalais, Anne-Catherine Connerotte, Karine Despontin, Armand Biver, Chantal Ceuterick-de Groote, Marielle Alders, Athanassios Kolivras, Jean-Pierre Hachem, Linda De Meirleir
Shwachman-Diamond syndrome (SDS) is a recessive ribosomopathy, characterized by bone marrow failure and exocrine pancreatic insufficiency (ePI) often associated with neurodevelopmental and skeletal abnormalities. The aim of this report is to describe a SDS patient with early ichthyosis associated with dermal and epidermal intracellular lipid droplets (iLDs), hypoglycemia and later a distinctive clinical SDS phenotype. At 3 months of age, she had ichthyosis, growth retardation, and failure to thrive. She had not cytopenia...
July 2016: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/27094156/secondary-hemophagocytic-lymphohistiocytosis-in-an-infant-with-wolman-disease-hemophagocytosis-and-wolman-disease
#5
Aynur Küçükçongar Yavaş, Betül Orhaner, Pınar Genç, Nevin Kılıç, Hakan Erdoğan, Özlem Özdemir, Arzu Ekici
No abstract text is available yet for this article.
April 18, 2016: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
https://www.readbyqxmd.com/read/26965858/development-of-a-selective-activity-based-probe-for-glycosylated-lipa
#6
Adam G Schwaid, Wanida Ruangsiriluk, Allan R Reyes, Shawn Cabral, Francis Rajamohan, Meihua Tu, Jessica Ward, Philip A Carpino
Loss of LIPA activity leads to diseases such as Wolman's Disease and Cholesterol Ester Storage Disease. While it is possible to measure defects in LIPA protein levels, it is difficult to directly measure LIPA activity in cells. In order to measure LIPA activity directly we developed a LIPA specific activity based probe. LIPA is heavily glycosylated although it is unclear how glycosylation affects LIPA activity or function. Our probe is specific for a glycosylated form of LIPA in cells, although it labels purified LIPA regardless of glycosylation...
April 15, 2016: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/26960203/disorders-in-the-initial-steps-of-steroid-hormone-synthesis
#7
Walter L Miller
Steroidogenesis begins with cellular internalization of low-density lipoprotein particles and subsequent intracellular processing of cholesterol. Disorders in these steps include Adrenoleukodystrophy, Wolman Disease and its milder variant Cholesterol Ester Storage Disease, and Niemann-Pick Type C Disease, all of which may present with adrenal insufficiency. The means by which cholesterol is directed to steroidogenic mitochondria remains incompletely understood. Once cholesterol reaches the outer mitochondrial membrane, its delivery to the inner mitochondrial membrane is regulated by the steroidogenic acute regulatory protein (StAR)...
March 6, 2016: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/26890176/the-effect-of-community-based-prevention-and-care-on-ebola-transmission-in-sierra-leone
#8
Paul Pronyk, Braeden Rogers, Sylvia Lee, Aarunima Bhatnagar, Yaron Wolman, Roeland Monasch, David Hipgrave, Peter Salama, Adam Kucharski, Mickey Chopra
OBJECTIVES: To examine the acceptability, use, effects on early isolation, and contribution to Ebola virus disease (EVD) transmission of Community Care Centers (CCCs), which were rapidly deployed in Sierra Leone during an accelerated phase of the 2014-2015 EVD epidemic. METHODS: Focus group discussions, triads, and key informant interviews assessed acceptability of the CCCs. Facility registers, structured questionnaires, and laboratory records documented use, admission, and case identification...
April 2016: American Journal of Public Health
https://www.readbyqxmd.com/read/26843764/a-rare-constellation-of-imaging-findings-in-wolman-disease
#9
Debraj Sen, Lovleen Satija, Sudhir Saxena, Vikas Rastogi, Meenu Singh
No abstract text is available yet for this article.
December 2015: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/26602919/does-lysosomial-acid-lipase-reduction-play-a-role-in-adult-non-alcoholic-fatty-liver-disease
#10
REVIEW
Francesco Baratta, Daniele Pastori, Licia Polimeni, Giulia Tozzi, Francesco Violi, Francesco Angelico, Maria Del Ben
Lysosomal Acid Lipase (LAL) is a key enzyme involved in lipid metabolism, responsible for hydrolysing the cholesteryl esters and triglycerides. Wolman Disease represents the early onset phenotype of LAL deficiency rapidly leading to death. Cholesterol Ester Storage Disease is a late onset phenotype that occurs with fatty liver, elevated aminotransferase levels, hepatomegaly and dyslipidaemia, the latter characterized by elevated LDL-C and low HDL-C. The natural history and the clinical manifestations of the LAL deficiency in adults are not well defined, and the diagnosis is often incidental...
2015: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/26283692/prd125-a-potent-and-selective-inhibitor-of-sterol-o-acyltransferase-2-markedly-reduces-hepatic-cholesteryl-ester-accumulation-and-improves-liver-function-in-lysosomal-acid-lipase-deficient-mice
#11
Adam M Lopez, Jen-Chieh Chuang, Kenneth S Posey, Taichi Ohshiro, Hiroshi Tomoda, Lawrence L Rudel, Stephen D Turley
In most organs, the bulk of cholesterol is unesterified, although nearly all possess a varying capability of esterifying cholesterol through the action of either sterol O-acyltransferase (SOAT) 1 or, in the case of hepatocytes and enterocytes, SOAT2. Esterified cholesterol (EC) carried in plasma lipoproteins is hydrolyzed by lysosomal acid lipase (LAL) when they are cleared from the circulation. Loss-of-function mutations in LIPA, the gene that encodes LAL, result in Wolman disease or cholesteryl ester storage disease (CESD)...
November 2015: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/26223439/inherited-metabolic-disorders-prenatal-diagnosis-of-lysosomal-storage-disorders
#12
Jyotsna Verma, Divya C Thomas, Sandeepika Sharma, Geetu Jhingan, Renu Saxena, Sudha Kohli, Ratna D Puri, Sunita Bijarnia, Ishwar C Verma
OBJECTIVE: To offer accurate prenatal diagnosis of lysosomal storage disorders in early pregnancy. METHOD: Prenatal enzymatic diagnoses of Gaucher, Fabry, Pompe, Niemann Pick A/B, Tay Sach, Sandoff, GM1, mucoplysaccharidoses, Wolman, Krabbe, Metachromatic leukodystrophy and Batten diseases were made in uncultured chorionic villi samples by fluorometric/spectrophotometric methods. RESULTS: Of 331 prenatal enzymatic diagnosis, 207 fetuses (67%) were normal and 124 (37%) were affected...
November 2015: Prenatal Diagnosis
https://www.readbyqxmd.com/read/26065284/-lysosomal-acid-lipase-deficiency-in-children-our-experience-and-a-novel-possibility-of-enzyme-replacement-therapy
#13
Danijela Petković Ramadža, Mario Ćuk, Karin Zibar, Marina Barić, Vladimir Sarnavka, Karmen Bilić, Ksenija Fumić, Jurica Vuković, Silvija Pušeljić, Marijana Ćorić, Ranka Štern Padovan, Marko Kralik, Ivo Barić
Lysosomal acid lipase deficiency is an autosomal recessive disorder with two distinct clinical phenotypes. Wolman disease is rapidly progressive with onset in early infancy. Complete enzyme deficiency results in massive accumulation of cholesterol esters and triglycerides in intestines, liver, spleen and other monocyte-macrophage system cells causing malabsorption, hepatosplenomegaly, liver failure and death in early infancy. Cholesterol ester storage disease may be diagnosed in childhood or later in life. It is characterized by chronic course and variable progression...
March 2015: Lijec̆nic̆ki Vjesnik
https://www.readbyqxmd.com/read/25909952/association-between-inflammation-and-cardiac-geometry-in-chronic-kidney-disease-findings-from-the-cric-study
#14
MULTICENTER STUDY
Jayanta Gupta, Elizabeth A Dominic, Jeffrey C Fink, Akinlolu O Ojo, Ian R Barrows, Muredach P Reilly, Raymond R Townsend, Marshall M Joffe, Sylvia E Rosas, Melanie Wolman, Samir S Patel, Martin G Keane, Harold I Feldman, John W Kusek, Dominic S Raj
BACKGROUND: Left ventricular hypertrophy (LVH) and myocardial contractile dysfunction are independent predictors of mortality in patients with chronic kidney disease (CKD). The association between inflammatory biomarkers and cardiac geometry has not yet been studied in a large cohort of CKD patients with a wide range of kidney function. METHODS: Plasma levels of interleukin (IL)-1β, IL-1 receptor antagonist (IL-1RA), IL-6, tumor necrosis factor (TNF)-α, transforming growth factor (TGF)-β, high-sensitivity C-Reactive protein (hs-CRP), fibrinogen and serum albumin were measured in 3,939 Chronic Renal Insufficiency Cohort study participants...
2015: PloS One
https://www.readbyqxmd.com/read/25624737/novel-lipa-mutations-in-mexican-siblings-with-lysosomal-acid-lipase-deficiency
#15
Yuritzi Santillán-Hernández, Enory Almanza-Miranda, Winnie W Xin, Kendrick Goss, Aurea Vera-Loaiza, María T Gorráez-de la Mora, Raul E Piña-Aguilar
Lysosomal acid lipase (LAL) deficiency is an under-recognized lysosomal disease caused by deficient enzymatic activity of LAL. In this report we describe two affected female Mexican siblings with early hepatic complications. At two months of age, the first sibling presented with alternating episodes of diarrhea and constipation, and later with hepatomegaly, elevated transaminases, high levels of total and low-density lipoprotein cholesterol, and low levels of high-density lipoprotein. Portal hypertension and grade 2 esophageal varices were detected at four years of age...
January 21, 2015: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/25620107/expression-and-functional-characterization-of-human-lysosomal-acid-lipase-gene-lipa-mutation-responsible-for-cholesteryl-ester-storage-disease-cesd-phenotype
#16
Francis Rajamohan, Allan R Reyes, Wanida Ruangsiriluk, Lise R Hoth, Seungil Han, Nicole Caspers, Meihua Tu, Jessica Ward, Ravi G Kurumbail
Lysosomal acid lipase (LAL) is a serine hydrolase which hydrolyzes cholesteryl ester and triglycerides delivered to the lysosomes into free cholesterol and free fatty acids. Mutations in the LAL gene (LIPA) result in accumulation of triglycerides and cholesterol esters in various tissues of the body, leading to pathological conditions such as Wolman's disease (WD) and cholesteryl ester storage disease (CESD). CESD patients homozygous for His295Tyr (H295Y) mutation have less than 5% of normal LAL activity. To shed light on the molecular basis for this loss-of-function phenotype, we have generated the recombinant H295Y enzyme and studied its biophysical and biochemical properties...
June 2015: Protein Expression and Purification
https://www.readbyqxmd.com/read/25450374/deletion-of-sterol-o-acyltransferase-2-soat2-function-in-mice-deficient-in-lysosomal-acid-lipase-lal-dramatically-reduces-esterified-cholesterol-sequestration-in-the-small-intestine-and-liver
#17
Adam M Lopez, Kenneth S Posey, Stephen D Turley
Sterol O-acyltransferase 2 (SOAT2), also known as ACAT2, is the major cholesterol esterifying enzyme in the liver and small intestine (SI). Esterified cholesterol (EC) carried in certain classes of plasma lipoproteins is hydrolyzed by lysosomal acid lipase (LAL) when they are cleared from the circulation. Loss-of-function mutations in LIPA, the gene that encodes LAL, result in Wolman disease (WD) or cholesteryl ester storage disease (CESD). Hepatomegaly and a massive increase in tissue EC levels are hallmark features of both disorders...
November 7, 2014: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/25345094/lysosomal-acid-lipase-deficiency-diagnosis-and-treatment-of-wolman-and-cholesteryl-ester-storage-diseases
#18
REVIEW
Anthony F Porto
Lysosomal acid lipase (LAL) is responsible for the hydrolysis of cholesterol esters and triglycerides. LAL is coded by the LIPA gene on chromosome 10q23.31. Its deficiency leads to two autosomal recessive disorders, Wolman disease (WD) and Cholesteryl Ester Storage Disease (CESD). WD has an estimated incidence of 1 in 500,000 live births and is the result of a complete loss of LAL and presents in infancy with vomiting, diarrhea, poor weight gain and hepatomegaly subsequently leading to death. CESD is the result of partial loss of LAL and its presentation is more variable...
September 2014: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/25265039/increased-plasma-oligomeric-alpha-synuclein-in-patients-with-lysosomal-storage-diseases
#19
S N Pchelina, E P Nuzhnyi, A K Emelyanov, T M Boukina, T S Usenko, M A Nikolaev, G N Salogub, A F Yakimovskii, E Yu Zakharova
A link between lysosomal storage diseases (LSDs) and neurodegenerative disorders associated with accumulation of presynaptic protein alpha-synuclein has been shown. Particularly, Gaucher disease (GD) patients with a deficiency of the lysosomal enzyme glucocerebrosidase (GBA) and carriers of GBA mutations are at increased risk of Parkinson's disease (PD). It remains unclear whether this link is due to increased alpha-synuclein oligomerization. Here we show that level of oligomeric alpha-synuclein form, associated with PD development, is increased in plasma of GD patients (n=41, median=22...
November 7, 2014: Neuroscience Letters
https://www.readbyqxmd.com/read/25234559/jcl-roundtable-enzyme-replacement-therapy-for-lipid-storage-disorders
#20
W Virgil Brown, Robert J Desnick, Gregory A Grabowski
There are several inherited disorders that involve abnormal storage of lipids in tissues leading to severe compromise of organs. Sadly, these are often accompanied by lifelong morbidity and early mortality. Disorders such as Gaucher, Fabry, and lysosomal acid lipase deficiencies (Wolman and cholesteryl ester storage diseases) have been known for many years, and provide a difficult and frustrating set of problems for patients, their families, and their physicians. With recombinant methods of protein synthesis, it is now possible to literally replace the defective enzymes that underlie the basic pathophysiology of many such disorders...
September 2014: Journal of Clinical Lipidology
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