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Inherited metabolic disorders

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https://www.readbyqxmd.com/read/27920806/hereditary-multiple-exostoses-a-review-of-clinical-appearance-and-metabolic-pattern
#1
REVIEW
Giovanni Beltrami, Gabriele Ristori, Guido Scoccianti, Angela Tamburini, Rodolfo Capanna
Hereditary multiple exostoses (HME) is an inherited genetic condition characterized by the presence of multiple exostoses (osteochondromas). MHE is a relatively rare autosomal dominant disorder, mainly caused by loss of function mutations in two genes: exostosin-1 (EXT1) and exostosin-2 (EXT2). These genes are linked to heparan sulfate (HS) synthesis, but the specific molecular mechanism leading to the disruption of the cartilage structure and the consequent exostoses formation is still not resolved. The aim of this paper is to encounter the main aspects of HME reviewing the literature, in order to improve clinical features and evolution, and the metabolic-pathogenetic mechanisms underlying...
May 2016: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/27920511/relationships-between-fto-rs9939609-mc4r-rs17782313-and-ppar%C3%AE-rs1801282-polymorphisms-and-the-occurrence-of-selected-metabolic-and-hormonal-disorders-in-middle-aged-and-elderly-men-a-preliminary-study
#2
Iwona Rotter, Karolina Skonieczna-Żydecka, Danuta Kosik-Bogacka, Grażyna Adler, Aleksandra Rył, Maria Laszczyńska
PURPOSE: Metabolic disorders, including MetS, obesity, and lipid disorders, may be related to genetic factors. Metabolic disorders are associated with decreased TS levels in aging men. The aim of this study was to evaluate the relationship between FTO rs9939609, MC4R rs17782313, and PPARγ rs1801282 polymorphisms and the presence of MetS and its components, the concurrent lipid disorders, as well as sex hormone concentrations. SUBJECTS AND METHODS: This study involved 272 men of Caucasian descent aged 50-75 years...
2016: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/27919711/epigenetic-dysfunctional-diseases-and-therapy-for-infection-and-inflammation
#3
REVIEW
Saheli Samanta, Sheeja Rajasingh, Thuy Cao, Buddhadeb Dawn, Johnson Rajasingh
Even though the discovery of the term 'epigenetics' was in the 1940s, it has recently become one of the most promising and expanding fields to unravel the gene expression pattern in several diseases. The most well studied example is cancer, but other diseases like metabolic disorders, autism, or inflammation-associated diseases such as lung injury, autoimmune disease, asthma, and type-2 diabetes display aberrant gene expression and epigenetic regulation during their occurrence. The change in the epigenetic pattern of a gene may also alter gene function because of a change in the DNA status...
December 2, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27919349/familial-combined-hyperlipidemia-and-hyperlipoprotein-a-as-phenotypic-mimics-of-familial-hypercholesterolemia-frequencies-associations-and-predictions
#4
Katrina L Ellis, Jing Pang, Dick C Chan, Amanda J Hooper, Damon A Bell, John R Burnett, Gerald F Watts
BACKGROUND: A significant proportion of index cases presenting with phenotypic familial hypercholesterolemia (FH) are not found to have a pathogenic mutation and may have other inherited conditions. OBJECTIVES: Familial combined hyperlipidemia (FCHL) and elevated lipoprotein(a) [Lp(a)] may mimic FH, but the frequency and correlates of these disorders among mutation-negative FH patients have yet to be established. METHODS: The frequency of FCHL and elevated Lp(a) was investigated in 206 FH mutation-negative index cases attending a specialist lipid clinic...
November 2016: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/27906866/inherited-and-acquired-disorders-of-magnesium-homeostasis
#5
Matthias Tilmann Florian Wolf
PURPOSE OF REVIEW: Magnesium (Mg) imbalances are frequently overlooked. Hypermagnesemia usually occurs in preeclamptic women after Mg therapy or in end-stage renal disease patients, whereas hypomagnesemia is more common with a prevalence of up to 15% in the general population. Increasing evidence points toward a role for mild-to-moderate chronic hypomagnesemia in the pathogenesis of hypertension, type 2 diabetes mellitus, and metabolic syndrome. RECENT FINDINGS: The kidneys are the major regulator of total body Mg homeostasis...
November 30, 2016: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/27899189/genetic-predisposition-to-kidney-cancer
#6
REVIEW
Laura S Schmidt, W Marston Linehan
Kidney cancer is not a single disease but is made up of a number of different types of cancer classified by histology that are disparate in presentation, clinical course, and genetic basis. Studies of families with inherited renal cell carcinoma (RCC) have provided the basis for our understanding of the causative genes and altered metabolic pathways in renal cancer with different histologies. Von Hippel-Lindau disease was the first renal cancer disorder with a defined genetic basis. Over the next two decades, the genes responsible for a number of other inherited renal cancer syndromes including hereditary papillary renal carcinoma, Birt-Hogg-Dube´syndrome, hereditary leiomyomatosis and renal cell carcinoma, and succinate dehydrogenase-associated renal cancer were identified...
October 2016: Seminars in Oncology
https://www.readbyqxmd.com/read/27897115/cysteinet-dysregulation-in-muscular-dystrophies-a-pathogenic-network-susceptible-to-therapy
#7
Marcos Arturo Martínez-Banaclocha
BACKGROUND: Muscular dystrophies are inherited disorders characterized by progressive skeletal muscle degeneration without curative therapy. The specific defective protein in each type of muscular dystrophy has been associated with different deleterious factors that contribute to the progression of the disease. Among these factors, the impairment of calcium homeostasis, the ubiquitin-proteasome dysfunction, and the oxidative damage of cellular macromolecules seem to be of central importance...
November 29, 2016: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/27896927/a-retrospective-review-of-anesthesia-and-perioperative-care-in-children-with-medium-chain-acyl-coa-dehydrogenase-deficiency
#8
Claire Allen, Russell Perkins, Bernd Schwahn
BACKGROUND: Medium-chain acyl-CoA dehydrogenase deficiency is the most common genetically determined disorder of mitochondrial fatty acid oxidation. Decompensation can result in hypoglycemia, seizures, coma, and death but may be prevented by ensuring glycogen stores do not become depleted. Perioperative care is of interest as surgery, fasting, and infection may all trigger decompensation and the safety of anesthetic agents has been questioned. Current guidelines from the British Inherited Metabolic Disease Group advise on administering fluid containing 10% glucose during the perioperative period...
November 29, 2016: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/27893966/vaccination-via-chloroplast-genetics-affordable-protein-drugs-for-the-prevention-and-treatment-of-inherited-or-infectious-human-diseases
#9
Henry Daniell, Hui-Ting Chan, Elise K Pasoreck
Plastid-made biopharmaceuticals treat major metabolic or genetic disorders, including Alzheimer's, diabetes, hypertension, hemophilia, and retinopathy. Booster vaccines made in chloroplasts prevent global infectious diseases, such as tuberculosis, malaria, cholera, and polio, and biological threats, such as anthrax and plague. Recent advances in this field include commercial-scale production of human therapeutic proteins in FDA-approved cGMP facilities, development of tags to deliver protein drugs to targeted human cells or tissues, methods to deliver precise doses, and long-term stability of protein drugs at ambient temperature, maintaining their efficacy...
November 23, 2016: Annual Review of Genetics
https://www.readbyqxmd.com/read/27889327/epigenetics-in-non-alcoholic-fatty-liver-disease
#10
REVIEW
Jooho Lee, Yuri Kim, Simonetta Friso, Sang-Woon Choi
Non-alcoholic fatty liver disease (NAFLD), a common hepatic disorder ranging from simple steatosis through steatohepatitis to fibrosis and cirrhosis, is an emerging health concern. NAFLD is a pathologic condition characterized by the buildup of extra fat in liver cells that is not caused by alcohol consumption. Excess hepatic fat accumulation results from increased delivery of triglycerides (TG) to the liver or conversion of surplus carbohydrates to TG. Importantly, a subgroup of NAFLD results in hepatocellular injury and inflammation, which is referred to as non-alcoholic steatohepatitis (NASH), and may progress to irreversible cirrhosis and hepatocellular carcinoma (HCC)...
November 23, 2016: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/27879395/a-computationally-identified-compound-antagonizes-excess-fgf-23-signaling-in-renal-tubules-and-a-mouse-model-of-hypophosphatemia
#11
Zhousheng Xiao, Demian Riccardi, Hector A Velazquez, Ai L Chin, Charles R Yates, Jesse D Carrick, Jeremy C Smith, Jerome Baudry, L Darryl Quarles
Fibroblast growth factor-23 (FGF-23) interacts with a binary receptor complex composed of α-Klotho (α-KL) and FGF receptors (FGFRs) to regulate phosphate and vitamin D metabolism in the kidney. Excess FGF-23 production, which causes hypophosphatemia, is genetically inherited or occurs with chronic kidney disease. Among other symptoms, hypophosphatemia causes vitamin D deficiency and the bone-softening disorder rickets. Current therapeutics that target the receptor complex have limited utility clinically. Using a computationally driven, structure-based, ensemble docking and virtual high-throughput screening approach, we identified four novel compounds predicted to selectively inhibit FGF-23-induced activation of the FGFR/α-KL complex...
November 22, 2016: Science Signaling
https://www.readbyqxmd.com/read/27858373/vitamin-b12-administration-by-subcutaneous-catheter-device-in-a-cobalamin-a-cbla-patient
#12
E Maines, G Morandi, G Gugelmo, F Ion-Popa, N Campostrini, A Pasini, M Vincenzi, F Teofoli, M Camilot, A Bordugo
Cobalamin A deficiency (cblA) is an inherited disorder of intracellular cobalamin metabolism, caused by impaired 5'-deoxy-adenosylcobalamin (AdoCbl) synthesis. Hydroxocobalamin (OHCbl) is the cornerstone of cblA treatment because vitamin B12 may completely restore AdoCbl deficiency. Parenteral administration, intravenous, subcutaneous or intramuscular, is generally required to achieve effect. Daily injections represent a problem for the parents and the caregivers, and this may lead to poor compliance and scarce adherence to the long-term treatment...
November 18, 2016: JIMD Reports
https://www.readbyqxmd.com/read/27853989/proposed-recommendations-for-diagnosing-and-managing-individuals-with-glutaric-aciduria-type-i-second-revision
#13
REVIEW
Nikolas Boy, Chris Mühlhausen, Esther M Maier, Jana Heringer, Birgit Assmann, Peter Burgard, Marjorie Dixon, Sandra Fleissner, Cheryl R Greenberg, Inga Harting, Georg F Hoffmann, Daniela Karall, David M Koeller, Michael B Krawinkel, Jürgen G Okun, Thomas Opladen, Roland Posset, Katja Sahm, Johannes Zschocke, Stefan Kölker
Glutaric aciduria type I (GA-I; synonym, glutaric acidemia type I) is a rare inherited metabolic disease caused by deficiency of glutaryl-CoA dehydrogenase located in the catabolic pathways of L-lysine, L-hydroxylysine, and L-tryptophan. The enzymatic defect results in elevated concentrations of glutaric acid, 3-hydroxyglutaric acid, glutaconic acid, and glutaryl carnitine in body tissues, which can be reliably detected by gas chromatography/mass spectrometry (organic acids) and tandem mass spectrometry (acylcarnitines)...
November 16, 2016: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/27847293/clinical-value-of-crystalluria-and-quantitative-morphoconstitutional-analysis-of-urinary-calculi
#14
REVIEW
Vincent Frochot, Michel Daudon
Crystalluria is a marker of urine supersaturation with substances deriving from metabolic disorders, inherited diseases or drugs. The investigation of crystalluria must be done according to a protocol which includes the delivery to the laboratory of a proper urine sample, the use of a microscope equipped with polarized light, the accurate knowledge of urine pH, and a comprehensive examination of the crystals, which is based on their identification, quantification and size measurement. For unusual crystals, infrared spectroscopy may also be needed...
November 12, 2016: International Journal of Surgery
https://www.readbyqxmd.com/read/27835797/designing-medical-foods-for-inherited-metabolic-disorders-why-intact-protein-is-superior-to-amino-acids
#15
REVIEW
Denise Marie Ney, Mark Raymond Etzel
Phenylketonuria and tyrosinemia are inherited metabolic disorders characterized by high blood levels of phenylalanine (Phe) or tyrosine (Tyr), due to mutations in genes affecting Phe and Tyr metabolism, respectively. The primary management is a lifelong diet restricted in protein from natural foods in combination with medical foods comprised mixtures of synthetic amino acids. Compliance is often poor after childhood leading to neuropsychological sequela. Glycomacropeptide, an intact 64 amino acid glycophosphopeptide isolated from cheese whey, provides a new paradigm for the management of phenylketonuria and tyrosinemia because glycomacropeptide contains no Phe and Tyr in its pure form, and is also a prebiotic...
November 8, 2016: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/27832551/anaesthetic-implications-of-the-changing-management-of-patients-with-mucopolysaccharidosis
#16
H A Hack, Rwm Walker, P Gardiner
The mucopolysaccharidoses are a group of inherited metabolic disorders that are renowned for presenting clinical problems, particularly related to cardiac, airway, and skeletal abnormalities, in children during anaesthesia. The changing clinical management of the mucopolysaccharidoses can be described in three phases. An initial phase of accumulation and dissemination of knowledge about the management of this rare disease with a growing recognition that untreated Hurler syndrome and more severe forms of other phenotypes such as Hunter syndrome and Maroteaux-Lamy syndrome were associated with severe complications under anaesthesia...
November 2016: Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/27832415/household-financial-burden-of-phenylketonuria-and-its-impact-on-treatment-in-china-a-cross-sectional-study
#17
Lin Wang, Hui Zou, Fang Ye, Kundi Wang, Xiaowen Li, Zhihua Chen, Jie Chen, Bingjuan Han, Weimin Yu, Chun He, Ming Shen
BACKGROUND: Phenylketonuria (PKU) is a rare inborn disease, which, untreated, leading to severe neurobehavioral dysfunction. Considering its complexity, the management of PKU may bring a formidable economic burden to parents and caregivers. It is still unknown what the out-of-pocket expenses are for a patient with PKU in China. This paper explores the household financial burden of classical PKU and its impact on Chinese families in a quantitative manner for the first time. METHODS: A non-interventional and observational study was conducted at the China-Japan Friendship Hospital, one of the national centers for inherited metabolic disorders in China...
November 10, 2016: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/27816806/spectrum-of-mutations-in-homozygous-familial-hypercholesterolemia-in-india-with-four-novel-mutations
#18
Nitika Setia, Renu Saxena, Anjali Arora, Ishwar C Verma
BACKGROUND AND AIMS: Homozygous familial hypercholesterolemia (FH) is a rare but serious, inherited disorder of lipid metabolism characterized by very high total and LDL cholesterol levels from birth. It presents as cutaneous and tendon xanthomas since childhood, with or without cardiac involvement. FH is commonly caused by mutations in three genes, i.e. LDL receptor (LDLR), apolipoprotein B (ApoB) and PCSK9. We aimed to determine the spectrum of mutations in cases of homozygous FH in Asian Indians and evaluate if there was any similarity to the mutations observed in Caucasians...
October 14, 2016: Atherosclerosis
https://www.readbyqxmd.com/read/27815844/incidence-and-geographic-distribution-of-succinic-semialdehyde-dehydrogenase-ssadh-deficiency
#19
Savita Verma Attri, Pratibha Singhi, Natrujee Wiwattanadittakul, Jyotindra N Goswami, Naveen Sankhyan, Gajja S Salomons, Jean-Baptiste Roullett, Ryan Hodgeman, Mahsa Parviz, K Michael Gibson, Phillip L Pearl
The incidence of succinic semialdehyde dehydrogenase (SSADH) deficiency, an autosomal recessive inherited disorder of GABA degradation, is unknown. Upon a recent diagnosis of a new family of affected fraternal twins from the Punjabi ethnic group of India, case ascertainment from the literature and our database was done to determine the number of confirmed cases along with their geographic distribution. The probands presented with global developmental delay, infantile onset epilepsy, and a persistent neurodevelopmental disorder upon diagnosis at 10 years of age with intellectual disability, expressive aphasia, and behavioral problems most prominent for hyperactivity...
November 5, 2016: JIMD Reports
https://www.readbyqxmd.com/read/27815040/the-addition-of-ketone-bodies-alleviates-mitochondrial-dysfunction-by-restoring-complex-i-assembly-in-a-melas-cellular-model
#20
Samuel Frey, Guillaume Geffroy, Valerie Desquiret-Dumas, Naig Gueguen, Celine Bris, Sophie Belal, Patrizia Amati-Bonneau, Arnaud Chevrollier, Magalie Barth, Daniel Henrion, Guy Lenaers, Dominique Bonneau, Pascal Reynier, Vincent Procaccio
Ketogenic Diet used to treat refractory epilepsy for almost a century may represent a treatment option for mitochondrial disorders for which effective treatments are still lacking. Mitochondrial complex I deficiencies are involved in a broad spectrum of inherited diseases including Mitochondrial Encephalomyopathy, Lactic Acidosis and Stroke-like episodes syndrome leading to recurrent cerebral insults resembling strokes and associated with a severe complex I deficiency caused by mitochondrial DNA (mtDNA) mutations...
November 1, 2016: Biochimica et Biophysica Acta
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