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https://www.readbyqxmd.com/read/29166669/frequency-of-five-disease-causing-genetic-mutations-in-a-large-mixed-breed-dog-population-2011-2012
#1
Sharon Zierath, Angela M Hughes, Neale Fretwell, Mark Dibley, Kari J Ekenstedt
BACKGROUND: A large and growing number of inherited genetic disease mutations are now known in the dog. Frequencies of these mutations are typically examined within the breed of discovery, possibly in related breeds, but nearly always in purebred dogs. No report to date has examined the frequencies of specific genetic disease mutations in a large population of mixed-breed dogs. Further, veterinarians and dog owners typically dismiss inherited/genetic diseases as possibilities for health problems in mixed-breed dogs, assuming hybrid vigor will guarantee that single-gene disease mutations are not a cause for concern...
2017: PloS One
https://www.readbyqxmd.com/read/29166659/sex-specific-influences-of-mtdna-mitotype-and-diet-on-mitochondrial-functions-and-physiological-traits-in-drosophila-melanogaster
#2
Wen C Aw, Michael R Garvin, Richard G Melvin, J William O Ballard
Here we determine the sex-specific influence of mtDNA type (mitotype) and diet on mitochondrial functions and physiology in two Drosophila melanogaster lines. In many species, males and females differ in aspects of their energy production. These sex-specific influences may be caused by differences in evolutionary history and physiological functions. We predicted the influence of mtDNA mutations should be stronger in males than females as a result of the organelle's maternal mode of inheritance in the majority of metazoans...
2017: PloS One
https://www.readbyqxmd.com/read/29166502/outcomes-of-long-term-treatments-of-type-i-hereditary-angioedema-in-a-turkish-family
#3
Gulsen Akoglu, Belgin Kesim, Gokhan Yildiz, Ahmet Metin
BACKGROUND: Hereditary angioedema is a rare autosomal dominantly inherited immunodeficiency disorder characterized by potentially life-threatening angioedema attacks. OBJECTIVE: We aimed to investigate the clinical and genetic features of a family with angioedema attacks. METHODS: The medical history, clinical features and C1-INH gene mutation of a Turkish family were investigated and outcomes of long-term treatments were described. RESULTS: Five members had experienced recurrent swellings on the face and extremities triggered by trauma...
September 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/29165759/transient-receptor-potential-melastatin-4-cation-channel-in-pediatric-heart-block
#4
J Tian, X-J An, M-Y Fu
Progressive cardiac conduction disease (PCCD) is a common pediatric heart conduction disorder. It is an autosomal inheritance of rare mutations, which leads to familial cases of PCCD. In these cases, the His-Purkinje system's conductive capacity is progressively deranged, involving either right or left bundle branch block. Also, QRS complexes display widening is an important characteristic that culminates in complete AV block, syncope, and sudden death. Mutations in TRPM4 gene that encodes for transient receptor potential melastatin 4 have recently been reported to cause familial cases of PCCD and heart block...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29163631/prenatal-diagnosis-of-fragile-x-can-a-full-mutation-allele-in-the-fmr1-gene-contract-to-a-normal-size
#5
Esther Manor, Azhar Jabareen, Nurit Magal, Arei Kofman, Randi J Hagerman, Flora Tassone
Here we describe a case of a prenatal diagnosis of a male fetus that inherited the unstable allele from his full mutation mosaic mother (29, 160, >200 CGG repeats) reduced to a normal size range (19 CGG repeats). Haplotype analysis showed that the fetus 19 CGG repeats allele derived from the maternal unstable allele which was inherited from his maternal grandmother. No size mosaicism was detected by testing the DNA from in vitro cultured samples, including seventh passage culture as well as from two amniocentesis samples...
2017: Frontiers in Genetics
https://www.readbyqxmd.com/read/29163366/clinical-genetic-and-protein-structural-aspects-of-familial-dysalbuminemic-hyperthyroxinemia-and-hypertriiodothyroninemia
#6
REVIEW
Ulrich Kragh-Hansen, Monica Galliano, Lorenzo Minchiotti
Familial dysalbuminemic hyperthyroxinemia (FDH-T4) and hypertriiodothyroninemia (FDH-T3) are dominantly inherited syndromes characterized by a high concentration of thyroid hormone in the blood stream. The syndromes do not cause disease, because the concentration of free hormone is normal, but affected individuals are at risk of erroneous treatment. FDH-T4 is the most common cause of euthyroid hyperthyroxinemia in Caucasian populations in which its prevalence is about 1 in 10,000 individuals, but the prevalence can be much higher in some ethnic groups...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29163336/two-novel-mutations-associated-with-ataxia-telangiectasia-identified-using-an-ion-ampliseq-inherited-disease-panel
#7
Maria V Kuznetsova, Dmitry Yu Trofimov, Ekaterina S Shubina, Taisiya O Kochetkova, Natalia A Karetnikova, Ilya Yu Barkov, Vladimir A Bakharev, Oleg A Gusev, Gennady T Sukhikh
Ataxia-telangiectasia (A-T), or Louis-Bar syndrome, is a rare neurodegenerative disorder associated with immunodeficiency. For families with at least one affected child, timely A-T genotyping during any subsequent pregnancy allows the parents to make an informed decision about whether to continue to term when the fetus is affected. Mutations in the ATM gene, which is 150 kb long, give rise to A-T; more than 600 pathogenic variants in ATM have been characterized since 1990 and new mutations continue to be discovered annually...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29163333/mutation-analysis-of-consanguineous-moroccan-patients-with-parkinson-s-disease-combining-microarray-and-gene-panel
#8
Ahmed Bouhouche, Christelle Tesson, Wafaa Regragui, Mounia Rahmani, Valérie Drouet, Houyam Tibar, Zouhayr Souirti, Rafiqua Ben El Haj, Naima Bouslam, Mohamed Yahyaoui, Alexis Brice, Ali Benomar, Suzanne Lesage
During the last two decades, 15 different genes have been reported to be responsible for the monogenic form of Parkinson's disease (PD), representing a worldwide frequency of 5-10%. Among them, 10 genes have been associated with autosomal recessive PD, with PRKN and PINK1 being the most frequent. In a cohort of 145 unrelated Moroccan PD patients enrolled since 2013, 19 patients were born from a consanguineous marriage, of which 15 were isolated cases and 4 familial. One patient was homozygous for the common LRRK2 G2019S mutation and the 18 others who did not carry this mutation were screened for exon rearrangements in the PRKN gene using Affymetrix Cytoscan HD microarray...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29162500/the-emerging-role-of-immune-dysfunction-in-mitochondrial-diseases-as-a-paradigm-for-understanding-immunometabolism
#9
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/29162218/renal-histology-and-mri-in-a-25-year-old-japanese-man-with-nephronophthisis-4%C3%A2
#10
Daisuke Takada, Akinari Sekine, Junko Yabuuchi, Yuta Kogure, Toshiharu Ueno, Masayuki Yamanouchi, Keiichi Sumida, Tatsuya Suwabe, Noriko Hayami, Junichi Hoshino, Kenmei Takaichi, Keiichi Kinowaki, Takeshi Fujii, Kenichi Ohashi, Takayasu Mori, Eisei Sohara, Shinichi Uchida, Yoshifumi Ubara
We investigated a 25-year-old Japanese man who had polycystic kidneys and end-stage renal failure without a positive family history. Ultrasonography revealed enlarged kidneys with increased echogenicity and multiple cystic lesions. MRI showed replacement of both kidneys by cystic lesions without definite walls. Renal biopsy demonstrated interstitial fibrosis, especially at the corticomedullary junction. The residual tubular system showed starfish-like disruption. Tubules with cystic dilation were mainly the distal loop of Henle and the distal tubules since immunohistochemical staining was positive for cytokeratin 7 (the distal loop of Henle and the distal tubule) and Tamm-Horsfall protein (the distal loop of Henle), while being negative for aquaporin 3 (the collecting duct) and CD10 (proximal tubule)...
November 22, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/29162161/international-szent-gy%C3%A3-rgyi-prize-for-progress-in-cancer-research-basic-and-translational-research-recognition-mary-claire-king-received-the-2016-prize-for-her-pioneering-research-that-demonstrated-the-first-evidence-of-genetic-predisposition-to-breast-cancer
#11
EDITORIAL
Hali Hartmann, Jie Zhao, Sujuan Ba
The Szent-Györgyi Prize for Progress in Cancer Research is a prestigious scientific award sponsored by the National Foundation for Cancer Research (NFCR)-a leading cancer research charitable organization in the United States that supports innovative cancer research globally with the ultimate goal to cure cancer. The coveted Szent-Györgyi Prize annually honors a scientist whose seminal discovery or body of work has resulted in, or led toward, notable contributions to cancer prevention, diagnosis, or treatment; and the discovery has had a high direct impact of saving people's lives...
November 21, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/29161289/mitochondrial-dna-sequence-context-in-the-penetrance-of-mitochondrial-t-rna-mutations-a-study-across-multiple-lineages-with-diagnostic-implications
#12
Rachel A Queen, Jannetta S Steyn, Phillip Lord, Joanna L Elson
Mitochondrial DNA (mtDNA) mutations are well recognized as an important cause of inherited disease. Diseases caused by mtDNA mutations exhibit a high degree of clinical heterogeneity with a complex genotype-phenotype relationship, with many such mutations exhibiting incomplete penetrance. There is evidence that the spectrum of mutations causing mitochondrial disease might differ between different mitochondrial lineages (haplogroups) seen in different global populations. This would point to the importance of sequence context in the expression of mutations...
2017: PloS One
https://www.readbyqxmd.com/read/29160035/mosaic-uniparental-disomy-results-in-gm1-gangliosidosis-with-normal-enzyme-assay
#13
Kenneth A Myers, Mark F Bennett, Chung W Chow, Susan M Carden, Simone A Mandelstam, Melanie Bahlo, Ingrid E Scheffer
Inherited metabolic disorders are traditionally diagnosed using broad and expensive panels of screening tests, often including invasive skin and muscle biopsy. Proponents of next-generation genetic sequencing have argued that replacing these screening panels with whole exome sequencing (WES) would save money. Here, we present a complex patient in whom WES allowed diagnosis of GM1 gangliosidosis, caused by homozygous GLB1 mutations, resulting in β-galactosidase deficiency. A 10-year-old girl had progressive neurologic deterioration, macular cherry-red spot, and cornea verticillata...
November 21, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29159868/tarsal-carpal-coalition-syndrome-report-of-a-novel-missense-mutation-in-nog-gene-and-phenotypic-delineation
#14
Aneek Das Bhowmik, Vijayalakshmi Salem Ramakumaran, Ashwin Dalal
We report a family of Indian origin presenting with Tarsal-carpal coalition syndrome (TCC), which is a rare genetic disorder of skeletal abnormalities, inherited in autosomal dominant manner. In this family, three individuals (mother and two children) were found to be similarly affected with slight intrafamilial individual variability in the phenotype. Sanger sequencing revealed a novel heterozygous missense mutation in NOG gene (NM_005450.4:c.611G>A) in all the affected individuals of the family. Until now only six mutations have been reported in different families affected with TCC syndrome worldwide...
November 21, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29159826/pharmacological-and-molecular-approaches-for-the-treatment-of-%C3%AE-hemoglobin-disorders
#15
REVIEW
Neelam Lohani, Nupur Bhargava, Anjana Munshi, Sivaprakash Ramalingam
β-hemoglobin disorders, such as β-thalassemia and sickle cell anemia are among the most prevalent inherited genetic disorders worldwide. These disorders are caused by mutations in the gene encoding hemoglobin-β (HBB), a vital protein found in red blood cells (RBCs) that carries oxygen from lungs to all parts of the human body. As a consequence, there has been an enduring interest in this field in formulating therapeutic strategies for the treatment of these diseases. Currently, there is no cure available for hemoglobin disorders, although, some patients have been treated with bone marrow transplantation, whose scope is limited because of the difficulty in finding a histocompatible donor and also due to transplant-associated clinical complications that can arise during the treatment...
November 20, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29159460/compound-heterozygous-inheritance-of-mutations-in-coenzyme-q8a-results-in-autosomal-recessive-cerebellar-ataxia-and-coenzyme-q10-deficiency-in-a-female-sib-pair
#16
Jessie C Jacobsen, Whitney Whitford, Brendan Swan, Juliet Taylor, Donald R Love, Rosamund Hill, Sarah Molyneux, Peter M George, Richard Mackay, Stephen P Robertson, Russell G Snell, Klaus Lehnert
Autosomal recessive ataxias are characterised by a fundamental loss in coordination of gait with associated atrophy of the cerebellum. There is significant clinical and genetic heterogeneity amongst inherited ataxias; however, an early molecular diagnosis is essential with low-risk treatments available for some of these conditions. We describe two female siblings who presented early in life with unsteady gait and cerebellar atrophy. Whole exome sequencing revealed compound heterozygous inheritance of two pathogenic mutations (p...
November 21, 2017: JIMD Reports
https://www.readbyqxmd.com/read/29159459/epg5-related-vici-syndrome-a-primary-defect-of-autophagic-regulation-with-an-emerging-phenotype-overlapping-with-mitochondrial-disorders
#17
Shanti Balasubramaniam, Lisa G Riley, Anand Vasudevan, Mark J Cowley, Velimir Gayevskiy, Carolyn M Sue, Caitlin Edwards, Edward Edkins, Reimar Junckerstorff, C Kiraly-Borri, P Rowe, J Christodoulou
Vici syndrome is a rare, under-recognised, relentlessly progressive congenital multisystem disorder characterised by five principal features of callosal agenesis, cataracts, cardiomyopathy, combined immunodeficiency and oculocutaneous hypopigmentation. In addition, three equally consistent features (profound developmental delay, progressive failure to thrive and acquired microcephaly) are highly supportive of the diagnosis. Since its recognition as a distinct entity in 1988, an extended phenotype with sensorineural hearing loss, skeletal myopathy and variable involvement of virtually any organ system, including the lungs, thyroid, liver and kidneys, have been described...
November 21, 2017: JIMD Reports
https://www.readbyqxmd.com/read/29158412/induced-gnas-r201h-expression-from-the-endogenous-gnas-locus-causes-fibrous-dysplasia-by-up-regulating-wnt-%C3%AE-catenin-signaling
#18
Sanjoy Kumar Khan, Prem Swaroop Yadav, Gene Elliott, Dorothy Zhang Hu, Ruoshi Xu, Yingzi Yang
Fibrous dysplasia (FD; Online Mendelian Inheritance in Man no. 174800) is a crippling skeletal disease caused by activating mutations of the GNAS gene, which encodes the stimulatory G protein Gαs FD can lead to severe adverse conditions such as bone deformity, fracture, and severe pain, leading to functional impairment and wheelchair confinement. So far there is no cure, as the underlying molecular and cellular mechanisms remain largely unknown and the lack of appropriate animal models has severely hampered FD research...
November 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29158291/rad51c-xrcc3-facilitates-mitochondrial-dna-replication-and-maintains-integrity-of-the-mitochondrial-genome
#19
Anup Mishra, Sneha Saxena, Anjali Kaushal, Ganesh Nagaraju
Mechanisms underlying mitochondrial genome maintenance have recently gained wide attention as mutations in mitochondrial DNA (mtDNA) lead to inherited muscular and neurological diseases which are linked to aging. It has been previously reported that human RAD51, RAD51C and XRCC3 localize to mitochondria upon oxidative stress and are required for the maintenance of mtDNA stability. Since RAD51 and RAD51 paralogs are spontaneously imported into mitochondria, their precise role in mtDNA maintenance during unperturbed conditions remains elusive...
November 20, 2017: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/29158215/risk-stratification-in-arrhythmogenic-right-ventricular-cardiomyopathy
#20
REVIEW
Hugh Calkins, Domenico Corrado, Frank Marcus
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is an inherited cardiomyopathy characterized by ventricular arrhythmias and an increased risk of sudden cardiac death. Although structural abnormalities of the right ventricle predominate, it is well recognized that left ventricular involvement is common, particularly in advanced disease, and that left-dominant forms occur. The pathological characteristic of ARVC is myocyte loss with fibrofatty replacement. Since the first detailed clinical description of the disorder in 1982, significant advances have been made in understanding this disease...
November 21, 2017: Circulation
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