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https://www.readbyqxmd.com/read/27926992/inherited-diseases-caused-by-mutations-in-cathepsin-protease-genes
#1
REVIEW
Stephanie Ketterer, Alejandro Gomez-Auli, Larissa E Hillebrand, Agnese Petrera, Anett Ketscher, Thomas Reinheckel
Lysosomal cathepsins are proteolytic enzymes increasingly recognized as prognostic markers and potential therapeutic targets in a variety of diseases. In those conditions the cathepsins are mostly overexpressed, thereby driving the respective pathogenic processes. Although less known, there are also diseases with a genetic deficiency of cathepsins. In fact, nowadays six out of the fifteen human proteases called "cathepsins" have been linked to inherited syndromes. However, only three of these syndromes are typical lysosomal storage diseases, while the others are apparently caused by defective cleavage of specific protein substrates...
December 7, 2016: FEBS Journal
https://www.readbyqxmd.com/read/27926951/a-novel-mutation-of-the-calcium-sensing-receptor-gene-in-a-franconian-kindred-heterozygous-mutation-c-1697_1698deltg-exon-6
#2
M Cordes, T Kuwert, C Haag, F Raue
Familial hypocalciuric hypercalcemia (FHH) belongs to the disorders of a disturbed calcium homeostasis. Genetically, the disorder is inherited in an autosomal-dominant trait and represents an inactivating mutation of the calcium sensing receptor (CaSR) gene. We identified a Franconian kindred in which 6 individuals could be tested by molecular genetic means. In 5 individuals of 3 generations, the mutation could be classified as c.1697_1698delTG. This novel germline mutation creates a premature stop codon leading to a loss of 510 amino acids of the protein...
December 7, 2016: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/27925158/mutations-in-dync2h1-the-cytoplasmic-dynein-2-heavy-chain-1-motor-protein-gene-cause-short-rib-polydactyly-type-i-saldino-noonan-type
#3
Nora Badiner, Stephanie Paige Taylor, Kimberly Forlenza, Ralph S Lachman, Michael Bamshad, Deborah Nickerson, Daniel H Cohn, Deborah Krakow
The short-rib polydactyly syndromes (SRPS) are autosomal recessively inherited, genetically heterogeneous skeletal ciliopathies. SRPS phenotypes were historically categorized as types I-IV, with type I first delineated by Saldino and Noonan in 1972. Characteristic findings among all forms of SRP include short horizontal ribs, short limbs and polydactyly. The SRP type I phenotype is characterized by a very small thorax, extreme micromelia, very short, poorly mineralized long bones, and multiple organ system anomalies...
December 7, 2016: Clinical Genetics
https://www.readbyqxmd.com/read/27923120/long-oskar-controls-mitochondrial-inheritance-in-drosophila-melanogaster
#4
Thomas Ryan Hurd, Beate Herrmann, Julia Sauerwald, Justina Sanny, Markus Grosch, Ruth Lehmann
Inherited mtDNA mutations cause severe human disease. In most species, mitochondria are inherited maternally through mechanisms that are poorly understood. Genes that specifically control the inheritance of mitochondria in the germline are unknown. Here, we show that the long isoform of the protein Oskar regulates the maternal inheritance of mitochondria in Drosophila melanogaster. We show that, during oogenesis, mitochondria accumulate at the oocyte posterior, concurrent with the bulk streaming and churning of the oocyte cytoplasm...
December 5, 2016: Developmental Cell
https://www.readbyqxmd.com/read/27922637/a-human-carboxypeptidase-e-nf-%C3%AE-1-gene-mutation-in-an-alzheimer-s-disease-patient-leads-to-dementia-and-depression-in-mice
#5
Y Cheng, N X Cawley, T Yanik, S R K Murthy, C Liu, F Kasikci, D Abebe, Y P Loh
Patients with Alzheimer's disease (AD), a common dementia among the aging population, often also suffer from depression. This comorbidity is poorly understood. Although most forms of AD are not genetically inherited, we have identified a new human mutation in the carboxypeptidase E (CPE)/neurotrophic factor-α1 (NF-α1) gene from an AD patient that caused memory deficit and depressive-like behavior in transgenic mice. This mutation consists of three adenosine inserts, introducing nine amino acids, including two glutamines into the mutant protein, herein called CPE-QQ...
December 6, 2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27922631/dataset-of-eye-disease-related-proteins-analyzed-using-the-unfolding-mutation-screen
#6
Caitlyn L McCafferty, Yuri V Sergeev
A number of genetic diseases are a result of missense mutations in protein structure. These mutations can lead to severe protein destabilization and misfolding. The unfolding mutation screen (UMS) is a computational method that calculates unfolding propensities for every possible missense mutation in a protein structure. The UMS validation demonstrated a good agreement with experimental and phenotypical data. 15 protein structures (a combination of homology models and crystal structures) were analyzed using UMS...
December 6, 2016: Scientific Data
https://www.readbyqxmd.com/read/27922500/facioscapulohumeral-muscular-dystrophy
#7
Jeffrey M Statland, Rabi Tawil
PURPOSE OF REVIEW: This article describes the clinical characteristics, diagnosis, molecular pathogenesis, and treatment of facioscapulohumeral muscular dystrophy (FSHD). RECENT FINDINGS: FSHD comprises two genetically distinct types that converge on a common downstream pathway of the expression of the toxic protein DUX4. Approximately 95% of patients have FSHD type 1 (FSHD1), in which loss of DNA repetitive elements (D4Z4 repeats) in the subtelomeric region of chromosome 4q causes decreased methylation and epigenetic derepression of DUX4, a gene contained within each D4Z4 repeat...
December 2016: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/27922248/recessive-congenital-methemoglobinemia-in-immediate-generations
#8
Deniz Aslan, Gülsan Türköz-Sucak, Melanie Joan Percy
We report herein on our observation of recessive congenital methemoglobinemia (type I), an autosomal recessive disorder, in immediate generations (in a mother and her daughter). Molecular analysis revealed a mechanism of inheritance not reported previously, despite the high probability of occurrence in autosomal recessive disorders. This report is also the first publication describing an extremely rare mutation (Arg50Gln) causing this disorder in the Turkish population.
2016: Turkish Journal of Pediatrics
https://www.readbyqxmd.com/read/27922122/identification-of-critical-paralog-groups-with-indispensable-roles-in-the-regulation-of-signaling-flow
#9
Dezso Modos, Johanne Brooks, David Fazekas, Eszter Ari, Tibor Vellai, Peter Csermely, Tamas Korcsmaros, Katalin Lenti
Extensive cross-talk between signaling pathways is required to integrate the myriad of extracellular signal combinations at the cellular level. Gene duplication events may lead to the emergence of novel functions, leaving groups of similar genes - termed paralogs - in the genome. To distinguish critical paralog groups (CPGs) from other paralogs in human signaling networks, we developed a signaling network-based method using cross-talk annotation and tissue-specific signaling flow analysis. 75 CPGs were found with higher degree, betweenness centrality, closeness, and 'bowtieness' when compared to other paralogs or other proteins in the signaling network...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27922091/an-increased-duplication-of-zrs-region-that-caused-more-than-one-supernumerary-digits-preaxial-polydactyly-in-a-large-chinese-family
#10
Bin Wang, Yutao Diao, Qiji Liu, Hongqiang An, Ruiping Ma, Guosheng Jiang, Nannan Lai, Ziwei Li, Xiaoxiao Zhu, Lin Zhao, Qiang Guo, Zhen Zhang, Rong Sun, Xia Li
Preaxial polydactyly (PPD) is inherited in an autosomal dominant fashion and characterized by the presence of one or more supernumerary digits on the thumb side. It had been identified that point mutation or genomic duplications of the long-range limb-specific cis-regulator - zone of polarizing activity regulatory sequence (ZRS) cause PPD or other limb deformities such as syndactyly type IV (SD4) and Triphalangeal thumb-polysyndactyly syndrome (TPTPS). Most previously reported cases involved with no more than one extra finger; however, the role of the point mutation or genomic duplications of ZRS in the case of more than one redundant finger polydactyly remains unclear...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27921396/frequency-and-type-of-inheritable-mutations-induced-by-%C3%AE-rays-in-rice-as-revealed-by-whole-genome-sequencing
#11
Shan Li, Yun-Chao Zheng, Hai-Rui Cui, Hao-Wei Fu, Qing-Yao Shu, Jian-Zhong Huang
Mutation breeding is based on the induction of genetic variations; hence knowledge of the frequency and type of induced mutations is of paramount importance for the design and implementation of a mutation breeding program. Although γ ray irradiation has been widely used since the 1960s in the breeding of about 200 economically important plant species, molecular elucidation of its genetic effects has so far been achieved largely by analysis of target genes or genomic regions. In the present study, the whole genomes of six γ-irradiated M2 rice plants were sequenced; a total of 144-188 million high-quality (Q>20) reads were generated for each M2 plant, resulting in genome coverage of >45 times for each plant...
2016: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/27920870/pyle-disease-metaphyseal-dysplasia-presenting-in-two-adult-sisters
#12
Diego Ximenes Soares, Amália Mapurunga Almeida, André Rodrigues Façanha Barreto, Ilze Jucá Alencar E Silva, José Daniel Vieira de Castro, Francisco José Magalhães Pinto, Daniel Aguiar Dias, Lindenberg Barbosa Aguiar
Pyle's disease is an extremely rare skeletal disorder characterized by a benign course and an autosomal recessive genetic pattern of inheritance. Its causal mutation is still unknown. In the medical literature, fewer than 30 cases have been described to date. We report the case of two female siblings, daughters of consanguineous parents, referred to the radiology department complaining of genu valgum. Laboratory tests showed no other relevant findings. Conventional radiography plain films revealed Erlenmeyer flask deformity in bilateral femorotibial metaphyses, metaphyseal flaring of long bones, and mild sclerosis of the skull base...
December 2016: Radiology case reports
https://www.readbyqxmd.com/read/27920816/concomitant-extraspinal-hyperostosis-and-osteoporosis-in-a-patient-with-congenital-ichthyosis
#13
Niloufar Torkamani, Pramit Phal, Ravi Savarirayan, Peter Simm, George Varigos, John Wark
Ichthyosiform dermatosis is a term referred to a group of disorders that have as their basis a disorder of keratinization (1). These conditions which are present at birth result in a generalized dry, scaly skin without any inflammation. There are several types of ichthyosis based on their clinical presentation and mode of inheritance. The most common types are: ichthyosis vulgaris, X-linked recessive ichthyosis, epidermolytic hyperkeratosis (bullous), lamellar ichthyosis and non-bullous ichthyosiform erythroderma...
May 2016: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/27920806/hereditary-multiple-exostoses-a-review-of-clinical-appearance-and-metabolic-pattern
#14
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/27920410/a-novel-splice-site-mutation-in-the-aspm-gene-underlies-autosomal-recessive-primary-microcephaly
#15
Jamil A Hashmi, Khalid M Al-Harbi, Khushnooda Ramzan, Alia M Albalawi, Amir Mehmood, Mohammed I Samman, Sulman Basit
BACKGROUND: Autosomal recessive primary microcephaly (MCPH) is a clinically and genetically heterogeneous disorder. Patients with MCPH exhibit reduced occipito-frontal head circumference and non-progressive intellectual disability. To date, 17 genes have been known as an underlying cause of MCPH in humans. ASPM (abnormal spindle-like, microcephaly associated) is the most commonly mutated MCPH gene. OBJECTIVE: Identify the genetic defect underlying MCPH in a Saudi family...
November 2016: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/27920237/von-willebrand-disease-a-concise-review-and-update-for-the-practicing-physician
#16
Arjun Swami, Varinder Kaur
von Willebrand disease (vWD) is the most common inherited disorder of hemostasis and comprises a spectrum of heterogeneous subtypes. Significant advances have been made in understanding von Willebrand factor (vWF) gene mutations, resultant physiologic deficits in the vWF peptide, and their correlation to clinical presentation. Diagnostic tests for this disorder are complex, and interpretation requires a thorough understanding of the underlying pathophysiology by the practicing physician. The objective of this review is to summarize our current understanding of pathophysiology, laboratory investigations, and evolving treatment paradigm of vWD with the availability of recombinant von Willebrand factor...
December 5, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27919364/double-heterozygous-autosomal-dominant-hypercholesterolemia-clinical-characterization-of-an-underreported-disease
#17
Barbara Sjouke, Joep C Defesche, Merel L Hartgers, Albert Wiegman, Jeanine E Roeters van Lennep, John J Kastelein, G Kees Hovingh
INTRODUCTION: Autosomal dominant hypercholesterolemia (ADH), characterized by high-plasma low-density lipoprotein cholesterol (LDL-C) levels and premature cardiovascular disease (CVD) risk, is caused by mutations in LDLR, APOB, and/or PCSK9. OBJECTIVE: To describe the clinical characteristics of "double-heterozygous carriers," with 2 mutations in 2 different ADH causing genes, that is, LDLR and APOB or LDLR and PCSK9. METHODS: Double heterozygotes were identified in the database of the national referral laboratory for DNA diagnostics of inherited dyslipidemias...
November 2016: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/27919357/lipid-phenotype-and-heritage-pattern-in-families-with-genetic-hypercholesterolemia-not-related-to-ldlr-apob-pcsk9-or-apoe
#18
Estíbaliz Jarauta, María Rosario Pérez-Ruiz, Sofia Pérez-Calahorra, Rocio Mateo-Gallego, Ana Cenarro, Montserrat Cofán, Emilio Ros, Fernando Civeira, Maria Teresa Tejedor
BACKGROUND: A substantial proportion of individuals clinically diagnosed as familial hypercholesterolemia (FH) do not carry pathogenic mutations in candidate genes. Whether in them the high cholesterol trait is transmitted monogenically has not been studied. OBJECTIVES: We assessed the inheritance pattern, penetrance, and expression of high low-density lipoprotein (LDL)-cholesterol (LDLc) in families with genetic hypercholesterolemia (GH) without known causative mutations (non-FH-GH)...
November 2016: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/27919349/familial-combined-hyperlipidemia-and-hyperlipoprotein-a-as-phenotypic-mimics-of-familial-hypercholesterolemia-frequencies-associations-and-predictions
#19
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/27919260/a-frameshift-mutation-in-mocos-is-associated-with-familial-renal-syndrome-xanthinuria-in-tyrolean-grey-cattle
#20
Leonardo Murgiano, Vidhya Jagannathan, Christian Piffer, Inmaculada Diez-Prieto, Marilena Bolcato, Arcangelo Gentile, Cord Drögemüller
BACKGROUND: Renal syndromes are occasionally reported in domestic animals. Two identical twin Tyrolean Grey calves exhibited weight loss, skeletal abnormalities and delayed development associated with kidney abnormalities and formation of uroliths. These signs resembled inherited renal tubular dysplasia found in Japanese Black cattle which is associated with mutations in the claudin 16 gene. Despite demonstrating striking phenotypic similarities, no obvious presence of pathogenic variants of this candidate gene were found...
December 5, 2016: BMC Veterinary Research
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