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- Protein-losing gastropathy associated with cytomegalovirus in two sisters - Case reports and review of the literature. [Journal Article]
- APArch Pediatr 2019; 26(4):232-235
- Ménétrier's disease is a protein-losing gastropathy that is uncommon in childhood. Its symptoms are unspecific, with abdominal pain, vomiting, and edema. Blood tests show hypoproteinemia and hypoalbu…
Ménétrier's disease is a protein-losing gastropathy that is uncommon in childhood. Its symptoms are unspecific, with abdominal pain, vomiting, and edema. Blood tests show hypoproteinemia and hypoalbuminemia, and upper digestive endoscopy reveals giant gastric folds. In children, cytomegalovirus has been identified as a possible cause. Here we describe two sisters presenting with Ménétrier's disease, 2 years apart. This diagnosis should be considered in the presence of hypoalbuminemia in children when a nephrotic syndrome is excluded.
- [Ménétrier's disease in pediatric patients secondary to cytomegalovirus infection: Presentation of two clinical cases in a high complexity center]. [Journal Article]
- AAArch Argent Pediatr 2019 Apr 01; 117(2):e158-e162
- Ménétrier's disease is a protein losing gastroenteropathy. Defined as a rare entity with an unknown cause, most of the reported cases have been associated with viral infections. In pediatric patients…
Ménétrier's disease is a protein losing gastroenteropathy. Defined as a rare entity with an unknown cause, most of the reported cases have been associated with viral infections. In pediatric patients, it is characterized by an acute onset with a benign and self-limiting course. It is characterized by thickened gastric folds that generally involve the body and the gastric fundus, associated with hypoalbuminemia due to the loss of serum protein through the mucosa. The following are two clinical cases of infant Ménétrier syndrome associated with cytomegalovirus infection.
- [IgG4 related hypertrophic gastropathy. Report of one case]. [Case Reports]
- RMRev Med Chil 2019; 147(1):119-124
- CRISPR/Cas9-mediated knockout of Abcd1 and Abcd2 genes in BV-2 cells: novel microglial models for X-linked Adrenoleukodystrophy. [Journal Article]
- BBBiochim Biophys Acta Mol Cell Biol Lipids 2019; 1864(5):704-714
- X-linked adrenoleukodystrophy (X-ALD), the most frequent peroxisomal disorder, is associated with mutation in the ABCD1 gene which encodes a peroxisomal ATP-binding cassette transporter for very long…
X-linked adrenoleukodystrophy (X-ALD), the most frequent peroxisomal disorder, is associated with mutation in the ABCD1 gene which encodes a peroxisomal ATP-binding cassette transporter for very long-chain fatty acids (VLCFA). The biochemical hallmark of the disease is the accumulation of VLCFA. Peroxisomal defect in microglia being now considered a priming event in the pathology, we have therefore generated murine microglial cells mutated in the Abcd1 gene and its closest homolog, the Abcd2 gene. Using CRISPR/Cas9 gene editing strategy, we obtained 3 cell clones with a single or double deficiency. As expected, only the combined absence of ABCD1 and ABCD2 proteins resulted in the accumulation of VLCFA. Ultrastructural analysis by electron microscopy revealed in the double mutant cells the presence of lipid inclusions similar to those observed in brain macrophages of patients. These observations are likely related to the increased level of cholesterol and the accumulation of neutral lipids that we noticed in mutant cells. A preliminary characterization of the impact of peroxisomal defects on the expression of key microglial genes such as Trem2 suggests profound changes in microglial functions related to inflammation and phagocytosis. The expression levels of presumed modifier genes have also been found modified in mutant cells, making these novel cell lines relevant for use as in vitro models to better understand the physiopathogenesis of X-ALD and to discover new therapeutic targets.
- Ménétrier's disease presenting as recurrent unprovoked venous thrombosis: a case report. [Case Reports]
- JMJ Med Case Rep 2019 Jan 17; 13(1):14
- CONCLUSIONS: This case describes an acquired thrombophilic state in a patient with Ménétrier's disease and profound hypoalbuminemia. Although this association is rarely described, we discuss the probable mechanisms leading to our patient's thrombosis. Specifically, we posit that his gastrointestinal protein loss led to a deficiency of several anticoagulant proteins and a compensatory elevation in factor VIII, as occurs in nephrotic syndrome and inflammatory bowel disease. Of note, this patient's recurrent venous thrombosis was the initial clinical sign of his gastrointestinal pathology.
- A microglial cell model for acyl-CoA oxidase 1 deficiency. [Journal Article]
- BBBiochim Biophys Acta Mol Cell Biol Lipids 2019; 1864(4):567-576
- Acyl-CoA oxidase 1 (ACOX1) deficiency is a rare and severe peroxisomal leukodystrophy associated with a very long-chain fatty acid (VLCFA) β-oxidation defect. This neurodegenerative disease lacks rel…
Acyl-CoA oxidase 1 (ACOX1) deficiency is a rare and severe peroxisomal leukodystrophy associated with a very long-chain fatty acid (VLCFA) β-oxidation defect. This neurodegenerative disease lacks relevant cell models to further decipher the pathomechanisms in order to identify novel therapeutic targets. Since peroxisomal defects in microglia appear to be a key component of peroxisomal leukodystrophies, we targeted the Acox1 gene in the murine microglial BV-2 cell line. Using CRISPR/Cas9 gene editing, we generated an Acox1-deficient cell line and validated the allelic mutations, which lead to the absence of ACOX1 protein and enzymatic activity. The activity of catalase, the enzyme degrading H2O2, was increased, likely in response to the alteration of redox homeostasis. The mutant cell line grew more slowly than control cells without obvious morphological changes. However, ultrastructural analysis revealed an increased number of peroxisomes and mitochondria associated with size reduction of mitochondria. Changes in the distribution of lipid droplets containing neutral lipids have been observed in mutant cells; lipid analysis revealed the accumulation of saturated and monounsaturated VLCFA. Besides, expression levels of genes encoding interleukin-1 beta and 6 (IL-1β and IL-6), as well as triggering receptor expressed on myeloid cells 2 (Trem2) were found modified in the mutant cells suggesting modification of microglial polarization and phagocytosis ability. In summary, this Acox1-deficient cell line presents the main biochemical characteristics of the human disease and will serve as a promising model to further investigate the consequences of a specific microglial peroxisomal β-oxidation defect on oxidative stress, inflammation and cellular functions.
- Anemia and hypogammaglobulinemia caused by Ménétrier's disease. [Case Reports]
- IJInt J Hematol 2018; 107(1):3-4
- [An infrequent cause of iron-deficiency anemia: Ménétrier disease]. [Case Reports]
- AGActa Gastroenterol Latinoam 2016; 46(2):118-21
- Ménétrier disease is a rare condition of an unknown origin,with a wide spectrum of clinical signs and symptoms at presentation. Diagnosis is made through the combination of clinical, analytical, endo…
Ménétrier disease is a rare condition of an unknown origin,with a wide spectrum of clinical signs and symptoms at presentation. Diagnosis is made through the combination of clinical, analytical, endoscopic and histological data. Surgery is the classical treatment. However, new medical approaches have emerged.
- Ménétrier's Disease as a Gastrointestinal Manifestation of Active Cytomegalovirus Infection in a 22-Month-Old Boy: A Case Report with a Review of the Literature of Korean Pediatric Cases. [Journal Article]
- CEClin Endosc 2018; 51(1):89-94
- Ménétrier's disease (MD), which is characterized by hypertrophic gastric folds and foveolar cell hyperplasia, is the most common gastrointestinal (GI) cause of protein-losing enteropathy (PLE). The c…
Ménétrier's disease (MD), which is characterized by hypertrophic gastric folds and foveolar cell hyperplasia, is the most common gastrointestinal (GI) cause of protein-losing enteropathy (PLE). The clinical course of MD in childhood differs from that in adults and has often been reported to be associated with cytomegalovirus (CMV) infection. We present a case of a previously healthy 22-month-old boy presenting with PLE, who was initially suspected to have an eosinophilic GI disorder. However, he was eventually confirmed, by detection of CMV DNA using polymerase chain reaction (PCR) with gastric tissue, to have MD associated with an active CMV infection. We suggest that endoscopic and pathological evaluation is necessary for the differential diagnosis of MD. In addition, CMV DNA detection using PCR analysis of biopsy tissue is recommended to confirm the etiologic agent of MD regardless of the patient's age or immune status.
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- Severe hypoproteinemia as a harbinger of Ménétrier's disease in autoimmune pancreatitis. [Case Reports]
- RARev Assoc Med Bras (1992) 2017; 63(3):215-218
- Ménétrier's disease is an extremely rare disease of unknown etiology causing gastric mucosal hypertrophy and protein-losing gastropathy. Rare cases of this condition have been reported in patients wi…
Ménétrier's disease is an extremely rare disease of unknown etiology causing gastric mucosal hypertrophy and protein-losing gastropathy. Rare cases of this condition have been reported in patients with autoimmune diseases. However, to the best of our knowledge, Ménétrier's disease associated with autoimmune pancreatitis (AIP) has never been reported. We described a case of severe hypoproteinemia as a harbinger of Ménétrier's disease associated with AIP. The patient was successfully treated with octreotide and high-protein diet, which led to symptomatic remission and significant improvement in serum levels of albumin and recovery of the nutritional status. Thus, in AIP patients presenting with severe and persistent hypoproteinemia without apparent cause, clinicians need to consider Ménétrier's disease in the differential diagnosis. In this setting, endoscopic evaluation with histological examination of gastric biopsy material, including a full-thickness mucosal biopsy of involved mucosa, may be helpful in promptly establishing the diagnosis and allowing appropriate and timely therapy.