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Inherited metabolic diseases

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https://www.readbyqxmd.com/read/29222412/ancestral-perinatal-obesogen-exposure-results-in-a-transgenerational-thrifty-phenotype-in-mice
#1
Raquel Chamorro-Garcia, Carlos Diaz-Castillo, Bassem M Shoucri, Heidi Käch, Ron Leavitt, Toshi Shioda, Bruce Blumberg
Ancestral environmental exposures to non-mutagenic agents can exert effects in unexposed descendants. This transgenerational inheritance has significant implications for understanding disease etiology. Here we show that exposure of F0 mice to the obesogen tributyltin (TBT) throughout pregnancy and lactation predisposes unexposed F4 male descendants to obesity when dietary fat is increased. Analyses of body fat, plasma hormone levels, and visceral white adipose tissue DNA methylome and transcriptome collectively indicate that the F4 obesity is consistent with a leptin resistant, thrifty phenotype...
December 8, 2017: Nature Communications
https://www.readbyqxmd.com/read/29222331/a-hypertension-associated-mitochondrial-dna-mutation-introduces-an-m1g37-modification-into-trnamet-altering-its-structure-and-function
#2
Mi Zhou, Ling Xue, Yaru Chen, Haiying Li, Qiufen He, Bibin Wang, Feilong Meng, Meng Wang, Min-Xin Guan
Defective nucleotide modifications of mitochondrial tRNAs have been associated with several human diseases, but their pathophysiology remains poorly understood. In this report, we investigated the pathogenic molecular mechanism underlying a hypertension-associated 4435A>G mutation in mitochondrial tRNAMet The m.4435A>G mutation affected a highly conserved adenosine at position 37, 3' adjacent to the tRNA's anticodon, which is important for the fidelity of codon recognition and stabilization. We hypothesized that the m...
December 8, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29219151/familial-hypercholesterolaemia
#3
REVIEW
Joep C Defesche, Samuel S Gidding, Mariko Harada-Shiba, Robert A Hegele, Raul D Santos, Anthony S Wierzbicki
Familial hypercholesterolaemia is a common inherited disorder characterized by abnormally elevated serum levels of low-density lipoprotein (LDL) cholesterol from birth, which in time can lead to cardiovascular disease (CVD). Most cases are caused by autosomal dominant mutations in LDLR, which encodes the LDL receptor, although mutations in other genes coding for proteins involved in cholesterol metabolism or LDLR function and processing, such as APOB and PCSK9, can also be causative, although less frequently...
December 7, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/29214587/rare-neurodegenerative-diseases-clinical-and-genetic-update
#4
Antoni Matilla-Dueñas, Marc Corral-Juan, Agustí Rodríguez-Palmero Seuma, Dolores Vilas, Lourdes Ispierto, Sara Morais, Jorge Sequeiros, Isabel Alonso, Víctor Volpini, Carmen Serrano-Munuera, Guillem Pintos-Morell, Ramiro Álvarez, Ivelisse Sánchez
More than 600 human disorders afflict the nervous system. Of these, neurodegenerative diseases are usually characterised by onset in late adulthood, progressive clinical course, and neuronal loss with regional specificity in the central nervous system. They include Alzheimer's disease and other less frequent dementias, brain cancer, degenerative nerve diseases, encephalitis, epilepsy, genetic brain disorders, head and brain malformations, hydrocephalus, stroke, Parkinson's disease, multiple sclerosis, amyotrophic lateral sclerosis (ALS or Lou Gehrig's Disease), Huntington's disease, and Prion diseases, among others...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29203518/dna-methylation-in-epigenetic-inheritance-of-metabolic-diseases-through-the-male-germ-line
#5
Louise Rh Illum, Stine T Bak, Sten Lund, Anders Lade Nielsen
The global rise in metabolic diseases can be attributed to a complex interplay between biology, behavior and environmental factors. This article reviews the current literature concerning DNA methylation-based epigenetic inheritance (intergenerational and transgenerational) of metabolic diseases through the male germ line. Included are a presentation of the basic principles for DNA methylation in developmental programming, and a description of windows of susceptibility for the inheritance of environmentally induced aberrations in DNA methylation and their associated metabolic disease phenotypes...
December 4, 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/29202719/an-in-vitro-splicing-assay-reveals-the-pathogenicity-of-a-novel-intronic-variant-in-atp6v0a4-for-autosomal-recessive-distal-renal-tubular-acidosis
#6
Tomohiko Yamamura, Kandai Nozu, Yuya Miyoshi, Keita Nakanishi, Junya Fujimura, Tomoko Horinouchi, Shogo Minamikawa, Nobuo Mori, Rika Fujimaru, Koichi Nakanishi, Takeshi Ninchoji, Hiroshi Kaito, Taniguchi-Ikeda Mariko, Ichiro Morioka, Masafumi Matsuo, Kazumoto Iijima
BACKGROUND: Autosomal recessive distal renal tubular acidosis (dRTA) is a rare hereditary disease caused by pathogenic variants in the ATP6V0A4 gene or ATP6V1B1 gene, and characterized by hyperchloremic metabolic acidosis with normal anion gap, hypokalemia, hypercalciuria, hypocitraturia and nephrocalcinosis. Although several intronic nucleotide variants in these genes have been detected, all of them fell in the apparent splice consensus sequence. In general, transcriptional analysis is necessary to determine the effect on function of the novel intronic variants located out of splicing consensus sequences...
December 4, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/29201470/a-novel-mutation-of-the-cyp11b2-in-a-saudi-infant-with-primary-hypoaldosteronism
#7
Lama Alfaraidi, Abrar Alfaifi, Rawan Alquaiz, Faten Almijmaj, Horia Mawlawi
Isolated hypoaldosteronism is a rare autosomal recessive disease presenting with severe salt wasting and failure to thrive in infancy. A 6-month-old Saudi girl born to consanguineous parents was referred from primary health care for failure to thrive and developmental delay. Laboratory tests revealed hyponatremia, hyperkalemia, and metabolic acidosis with high renin and low aldosterone. Blood samples were collected for endocrine and genetic studies. Sequence analysis of the CYP11B2 revealed a T to A transition at position 1398 + 2 in exon 8 of the gene in a homozygous state (c...
2017: Case Reports in Endocrinology
https://www.readbyqxmd.com/read/29199262/impaired-bioenergetics-in-clinical-medicine-a-target-to-tackle
#8
Sergej M Ostojic
Mitochondrial energy deficit is considered a key element of different clinical pathologies - from inherited disorders of energy metabolism to drug-induced mitochondrial toxicity, to cardiometabolic and neurodegenerative diseases. However, clinical manifestations of impaired bioenergetics are not easy to recognize, with patient-reported features usually include non-pathognomonic fatigue and weakness, or exercise intolerance, while specific lab tests are missing. Although it is not clear whether poor energetics is a primary deficit or a secondary consequence of specific disorders, improving mitochondrial viability remains a challenging task in both experimental and clinical medicine...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29185864/novel-mutation-in-the-human-hprt1-gene-and-the-lesch-nyhan-disease
#9
Khue Vu Nguyen, Robert K Naviaux, William L Nyhan
Lesch-Nyhan disease (LND) is a rare X-linked inherited neurogenetic disorder of purine metabolism in which the enzyme, hypoxanthine-guanine phosphoribosyltransferase (HGprt) is defective. The authors report a novel point mutation that led to HGprt-related neurological dysfunction (HND) in a family in which there was a missense mutation in exon 6 of the coding region of the HPRT1 gene: g.34938G>T, c.403G>T, p.D135Y. Molecular diagnosis is consistent with the genetic heterogeneity of the HPRT1 gene responsible for HGprt deficiency...
November 29, 2017: Nucleosides, Nucleotides & Nucleic Acids
https://www.readbyqxmd.com/read/29182774/heterozygous-ssbp1-start-loss-mutation-co-segregates-with-hearing-loss-and-the-m-1555a-g-mtdna-variant-in-a-large-multigenerational-family
#10
Peter J Kullar, Aurora Gomez-Duran, Payam A Gammage, Caterina Garone, Michal Minczuk, Zoe Golder, Janet Wilson, Julio Montoya, Sanna Häkli, Mikko Kärppä, Rita Horvath, Kari Majamaa, Patrick F Chinnery
The m.1555A>G mtDNA variant causes maternally inherited deafness, but the reasons for the highly variable clinical penetrance are not known. Exome sequencing identified a heterozygous start loss mutation in SSBP1, encoding the single stranded binding protein 1 (SSBP1), segregating with hearing loss in a multi-generational family transmitting m.1555A>G, associated with mtDNA depletion and multiple deletions in skeletal muscle. The SSBP1 mutation reduced steady state SSBP1 levels leading to a perturbation of mtDNA metabolism, likely compounding the intra-mitochondrial translation defect due to m...
November 22, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29180997/inherent-x-linked-genetic-variability-and-cellular-mosaicism-unique-to-females-contribute-to-sex-related-differences-in-the-innate-immune-response
#11
Zoltan Spolarics, Geber Peña, Yong Qin, Robert J Donnelly, David H Livingston
Females have a longer lifespan and better general health than males. Considerable number of studies also demonstrated that, after trauma and sepsis, females present better outcomes as compared to males indicating sex-related differences in the innate immune response. The current notion is that differences in the immuno-modulatory effects of sex hormones are the underlying causative mechanism. However, the field remains controversial and the exclusive role of sex hormones has been challenged. Here, we propose that polymorphic X-linked immune competent genes, which are abundant in the population are important players in sex-based immuno-modulation and play a key role in causing sex-related outcome differences following trauma or sepsis...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29167332/redox-regulation-of-homeostasis-and-proteostasis-in-peroxisomes
#12
REVIEW
Cheryl L Walker, Laura C D Pomatto, Durga Nand Tripathi, Kelvin J A Davies
Peroxisomes are highly dynamic intracellular organelles involved in a variety of metabolic functions essential for the metabolism of long-chain fatty acids, d-amino acids, and many polyamines. A byproduct of peroxisomal metabolism is the generation, and subsequent detoxification, of reactive oxygen and nitrogen species, particularly hydrogen peroxide (H2O2). Because of its relatively low reactivity (as a mild oxidant), H2O2 has a comparatively long intracellular half-life and a high diffusion rate, all of which makes H2O2 an efficient signaling molecule...
January 1, 2018: Physiological Reviews
https://www.readbyqxmd.com/read/29163032/lipid-involvement-in-neurodegenerative-diseases-of-the-motor-system-insights-from-lysosomal-storage-diseases
#13
REVIEW
James C Dodge
Lysosomal storage diseases (LSDs) are a heterogeneous group of rare inherited metabolic diseases that are frequently triggered by the accumulation of lipids inside organelles of the endosomal-autophagic-lysosomal system (EALS). There is now a growing realization that disrupted lysosomal homeostasis (i.e., lysosomal cacostasis) also contributes to more common neurodegenerative disorders such as Parkinson disease (PD). Lipid deposition within the EALS may also participate in the pathogenesis of some additional neurodegenerative diseases of the motor system...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29162500/the-emerging-role-of-immune-dysfunction-in-mitochondrial-diseases-as-a-paradigm-for-understanding-immunometabolism
#14
REVIEW
Senta M Kapnick, Susan E Pacheco, Peter J McGuire
Immunometabolism aims to define the role of intermediary metabolism in immune cell function, with bioenergetics and the mitochondria recently taking center stage. To date, the medical literature on mitochondria and immune function extols the virtues of mouse models in exploring this biologic intersection. While the laboratory mouse has become a standard for studying mammalian biology, this model comprises part of a comprehensive approach. Humans, with their broad array of inherited phenotypes, serve as a starting point for studying immunometabolism; specifically, patients with mitochondrial disease...
November 18, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29159707/propionyl-coa-carboxylase-pcca-1-and-pccb-1-gene-deletions-in-caenorhabditis-elegans-globally-impair-mitochondrial-energy-metabolism
#15
Kimberly A Chapman, Julian Ostrovsky, Meera Rao, Stephen D Dingley, Erzsebet Polyak, Marc Yudkoff, Rui Xiao, Michael J Bennett, Marni J Falk
Propionic acidemia (PA) is a classical inborn error of metabolism with high morbidity that results from the inability of the propionyl-CoA carboxylase (PCC) enzyme to convert propionyl-CoA to methylmalonyl-CoA. PA is inherited in an autosomal recessive fashion due to functional loss of both alleles of either PCCA or PCCB. These genes are highly conserved across evolutionarily diverse species and share extensive similarity with pcca-1 and pccb-1 in the nematode, Caenorhabditis elegans. Here, we report the global metabolic effects of deletion in a single PCC gene, either pcca-1 or pccb-1, in C...
November 20, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/29154227/generation-of-integration-free-induced-pluripotent-stem-cell-line-njmui001-a-from-a-phenylketonuria-patient
#16
Tianhui Xu, Dong Liang, Jingjing Zhang, Xiuqing Ji, Huanran Hu, Yun Sun, Tao Jiang, Xia Wang, Ping Hu, Zhengfeng Xu
PKU is a prevalent type of inherited metabolic disease, caused by the defective phenylalanine metabolism. In most PKU cases, mutations in the PAH gene could be found. Dysfunction of this hepatic enzyme will lead to diverse clinical symptoms due to a failure in converting phenylalanine into tyrosine. Here, we report an integration-free human induced pluripotent stem cell line (NJMUi001-A) generated from peripheral blood mononuclear cells of a PKU patient by using Sendai virus. This iPS cell line has characteristics of pluripotent stem cells and can be used as a useful tool for the investigation of this inherited metabolic disease...
November 10, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/29147139/insights-into-the-management-of-wilson-s-disease
#17
REVIEW
Mohmadshakil Kathawala, Gideon M Hirschfield
Wilson's disease is a rare, inherited autosomal recessive disease of copper metabolism, in which the causative gene, ATP7B, results in absent or reduced function of the ATP7B transporter important for biliary excretion of copper and incorporation of copper into caeruloplasmin. Affected patients accumulate excessive copper within the liver, brain and other tissues. A disease mainly of children, adolescents and young adults; clinical features vary from the asymptomatic state to chronic liver disease, acute liver failure, and neuropsychiatric manifestations...
November 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/29145655/paternal-exposure-to-environmental-chemical-stress-affectsmale-offspring-s-hepatic-mitochondria
#18
Roger Godschalk, Alex Remels, Camiel Hoogendoorn, Jan van Benthem, Mirjam Luijten, Nur Duale, Gunnar Brunborg, Ann-Karin Olsen, Freek G Bouwman, Armelle Munnia, Marco Peluso, Edwin Mariman, Frederik Jan van Schooten
Pre-conceptional paternal exposures may affect offspring's health, which cannot be explained by mutations in germ cells, but by persistent changes in the regulation of gene expression. Therefore, we investigated whether pre-conceptional paternal exposure to benzo[a]pyrene (B[a]P) could alter the offspring's phenotype. Male C57BL/6 mice were exposed to B[a]P by gavage for 6 weeks, 3x per week, and were crossed with unexposed BALB-c females 6 weeks after the final exposure. The offspring was kept under normal feeding conditions and was sacrificed at 3 weeks of age...
November 14, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29143201/newborn-screening-for-lysosomal-storage-disorders-by-tandem-mass-spectrometry-in-north-east-italy
#19
Alberto B Burlina, Giulia Polo, Leonardo Salviati, Giovanni Duro, Carmela Zizzo, Andrea Dardis, Bruno Bembi, Chiara Cazzorla, Laura Rubert, Roberta Zordan, Robert J Desnick, Alessandro P Burlina
BACKGROUND: Lysosomal storage diseases (LSDs) are inborn errors of metabolism resulting from 50 different inherited disorders. The increasing availability of treatments and the importance of early intervention have stimulated newborn screening (NBS) to diagnose LSDs and permit early intervention to prevent irreversible impairment or severe disability. We present our experience screening newborns in North East Italy to identify neonates with Mucopolysaccharidosis type I (MPS I) and Pompe, Fabry, and Gaucher diseases...
November 15, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/29137068/carnitine-acylcarnitine-translocase-deficiency-with-c-199-10-t-g-and-novel-c-1a-g-mutation-two-case-reports-and-brief-literature-review
#20
Hui-Ming Yan, Hao Hu, Aisha Ahmed, Bing-Bing Feng, Jing Liu, Zheng-Jun Jia, Hua Wang
RATIONALE: Carnitine-acylcarnitine translocate deficiency (CACTD) is a rare and life-threatening, autosomal recessive disorder of fatty acid β-oxidation characterized by hypoketotic hypoglycemia, hyperammonemia, cardiomyopathy, liver dysfunction, and muscle weakness; culminating in early death. To date, CACTD cases screened from the Chinese mainland population, especially patient with compound heterozygote with c.199-10T>G and a novel c.1A>G mutation in the SLC25A20 gene has never been described...
November 2017: Medicine (Baltimore)
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