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https://www.readbyqxmd.com/read/28433622/diminished-capacity-of-opsonization-and-immune-complex-solubilization-and-detection-of-anti-c1q-antibodies-in-sera-from-patients-with-hereditary-angioedema
#1
Daisuke Honda, Isao Ohsawa, Nobuyuki Sato, Hiroyuki Inoshita, Satoshi Mano, Yasuhiko Tomino, Yusuke Suzuki
BACKGROUND: Hereditary angioedema (HAE) is an autosomal dominant disease caused by deficiency of C1 esterase inhibitor. Symptoms of HAE include edema, which can potentially cause suffocation. Some patients with HAE exhibit immunological abnormalities, which could prevent an accurate diagnosis. Low levels of complement components are characteristic of HAE and in other settings are thought to reduce elimination of apoptotic cells and immune complex (IC). Thus, we aimed to experimentally clarify the mechanism of immunological abnormalities using sera from HAE patients...
April 19, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28432641/dentatorubro-pallidoluysian-atrophy-drpla-among-700-families-with-ataxia-in-brazil
#2
Pedro Braga-Neto, José Luiz Pedroso, Gabriel Vasata Furtado, Tailise Conte Gheno, Maria Luiza Saraiva-Pereira, Laura Bannach Jardim, Orlando G P Barsottini
Dentatorubro-pallidoluysian atrophy (DRPLA) is a spinocerebellar ataxia (SCA) very rare in non-Asian populations. To date, DRPLA was undetected in the general Brazilian population. Adult-onset ataxic patients have been recruited from several Brazilian neurology and neurogenetics centers. CAG lengths at SCA1, SCA2, SCA3/MJD, SCA6, SCA7, SCA12, SCA17 and DRPLA associated genes, and ATTCT expansions at SCA10 gene were studied. A single DRPLA case detected is reported. Proband was a 69-year-old Brazilian woman of mixed ancestry, with a late-onset pure ataxia: her alleles at the associated gene, ATN1, presented 14/52 CAG repeats...
April 21, 2017: Cerebellum
https://www.readbyqxmd.com/read/28432464/insights-into-autosomal-dominant-polycystic-kidney-disease-by-quantitative-mass-spectrometry-based-proteomics
#3
REVIEW
Britta Diedrich, Jörn Dengjel
Autosomal dominant polycystic kidney disease (ADPKD) is a common monogenetic disorder that is caused by mutations in the genes PKD1 and PKD2 encoding polycystin-1 and polycystin-2, respectively. Polycystin-1 and -2 form a complex, interact with several proteins involved in signal transduction and localize to discrete subcellular positions, most importantly the primary cilium. Whereas the causative mutations leading to ADPKD are known, the underlying deregulated cellular pathways are not well understood. In the current review, we introduce state-of-the-art mass spectrometry (MS)-based proteomic techniques and summarize their use in kidney and ADPKD research...
April 21, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28431061/high-prevalence-of-arrhythmic-and-myocardial-complications-in-patients-with-cardiac-glycogenosis-due-to-prkag2-mutations
#4
Julien Thevenon, Gabriel Laurent, Flavie Ader, Pascal Laforêt, Didier Klug, Anju Duva Pentiah, Laurent Gouya, Claude Alain Maurage, Salem Kacet, Jean-Christophe Eicher, Juliette Albuisson, Michel Desnos, Eric Bieth, Denis Duboc, Laurent Martin, Patricia Réant, François Picard, Claire Bonithon-Kopp, Elodie Gautier, Christine Binquet, Christel Thauvin-Robinet, Laurence Faivre, Patrice Bouvagnet, Philippe Charron, Pascale Richard
Aims: Mutations in PRKAG2, the gene encoding for the γ2 subunit of 5'-AMP-activated protein kinase (AMPK), are responsible for an autosomal dominant glycogenosis with a cardiac presentation, associating hypertrophic cardiomyopathy (HCM), ventricular pre-excitation (VPE), and progressive heart block. The aim of this study was to perform a retrospective time-to-event study of the clinical manifestations associated with PRKAG2 mutations. Methods and Results: A cohort of 34 patients from 9 families was recruited between 2001 and 2010...
April 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28428907/palliative-care-in-huntington-disease-personal-reflections-and-a-review-of-the-literature
#5
REVIEW
Christopher G Tarolli, Amy M Chesire, Kevin M Biglan
BACKGROUND: Huntington disease is a fatal, autosomal dominant, neurodegenerative disorder manifest by the triad of a movement disorder, behavioral disturbances, and dementia. At present, no curative or disease modifying therapies exist for the condition and current treatments are symptomatic. Palliative care is an approach to care that focuses on symptom relief, patient and caregiver support, and end of life care. There is increasing evidence of the benefit of palliative care throughout the course of neurodegenerative conditions including Parkinson disease and amyotrophic lateral sclerosis...
2017: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/28428902/nonfamilial-juvenile-polyposis-syndrome-with-exon-5-novel-mutation-in-smad-4-gene
#6
Amna Ahmed, Badr Alsaleem
Juvenile polyposis syndrome (JPS) is a rare autosomal dominant hereditary disorder, characterized by multiple juvenile polyps in the gastrointestinal tract and an increased risk of colorectal cancer. JPS is most frequently caused by mutations in the SMAD4 or BMPR1A genes. Herein, we report a child with juvenile polyposis syndrome (JPS) with a novel mutation in the SMAD4 gene. An 8-year-old boy presented with recurrent rectal bleeding and was found to have multiple polyps in the entire colon. The histology of the resected polyps was consistent with juvenile polyps...
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/28428247/induction-of-cell-death-and-gain-of-function-properties-of-connexin26-mutants-predict-severity-of-skin-disorders-and-hearing-loss
#7
Eric R Press, Qing Shao, John J Kelly, Katrina Chin, Anton Alaga, Dale W Laird
Connexin26 (Cx26) is a gap junction protein that oligomerizes in the cell to form hexameric transmembrane channels called connexons. Cell surface connexons dock between adjacent cells to allow for gap junctional intercellular communication. Numerous autosomal dominant mutations in the Cx26 encoding GJB2 gene lead to many skin disorders and sensorineural hearing loss. Although some insights have been gained into the pathogenesis of these diseases, it is not fully understood how distinct GJB2 mutations result in hearing loss alone or in skin pathologies with comorbid hearing loss...
April 20, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28427548/autosomal-dominant-gain-of-function-stat1-mutation-and-severe-bronchiectasis
#8
Oded Breuer, Hagit Daum, Malena Cohen-Cymberknoh, Susanne Unger, David Shoseyov, Polina Stepensky, Baerbel Keller, Klaus Warnatz, Eitan Kerem
BACKGROUND: In a substantial number of patients with non-cystic fibrosis (CF) bronchiectasis an etiology cannot be found. Various complex immunodeficiency syndromes account for a significant portion of these patients but the mechanism elucidating the predisposition for suppurative lung disease often remains unknown. OBJECTIVE: To investigate the cause and mechanism predisposing a patient to severe bronchiectasis. METHODS: A patient presenting with severe non-CF bronchiectasis was investigated...
May 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28423518/a-novel-pathogenic-splice-acceptor-site-germline-mutation-in-intron-14-of-the-apc-gene-in-a-chinese-family-with-familial-adenomatous-polyposis
#9
Dan Wang, Shengyun Liang, Zhao Zhang, Guoru Zhao, Yuan Hu, Shengran Liang, Xipeng Zhang, Santasree Banerjee
Familial adenomatous polyposis (FAP) is an autosomal dominant precancerous condition, clinically characterized by the presence of multiple colorectal adenomas or polyps. Patients with FAP has a high risk of developing colorectal cancer (CRC) from these colorectal adenomatous polyps by the mean age of diagnosis at 40 years. Germline mutations of the APC gene cause familial adenomatous polyposis (FAP). Colectomy has recommended for the FAP patients with significant polyposis. Here, we present a clinical molecular study of a four generation Chinese family with FAP...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423318/oligodendrocyte-nf1-controls-aberrant-notch-activation-and-regulates-myelin-structure-and-behavior
#10
Alejandro López-Juárez, Haley E Titus, Sadiq H Silbak, Joshua W Pressler, Tilat A Rizvi, Madeleine Bogard, Michael R Bennett, Georgianne Ciraolo, Michael T Williams, Charles V Vorhees, Nancy Ratner
The RASopathy neurofibromatosis type 1 (NF1) is one of the most common autosomal dominant genetic disorders. In NF1 patients, neurological issues may result from damaged myelin, and mice with a neurofibromin gene (Nf1) mutation show white matter (WM) defects including myelin decompaction. Using mouse genetics, we find that altered Nf1 gene-dose in mature oligodendrocytes results in progressive myelin defects and behavioral abnormalities mediated by aberrant Notch activation. Blocking Notch, upstream mitogen-activated protein kinase (MAPK), or nitric oxide signaling rescues myelin defects in hemizygous Nf1 mutants, and pharmacological gamma secretase inhibition rescues aberrant behavior with no effects in wild-type (WT) mice...
April 18, 2017: Cell Reports
https://www.readbyqxmd.com/read/28423040/inheritance-patterns-of-atcct-repeat-interruptions-in-spinocerebellar-ataxia-type-10-sca10-expansions
#11
Ivette Landrian, Karen N McFarland, Jilin Liu, Connie J Mulligan, Astrid Rasmussen, Tetsuo Ashizawa
Spinocerebellar ataxia type 10 (SCA10), an autosomal dominant cerebellar ataxia disorder, is caused by a non-coding ATTCT microsatellite repeat expansion in the ataxin 10 gene. In a subset of SCA10 families, the 5'-end of the repeat expansion contains a complex sequence of penta- and heptanucleotide interruption motifs which is followed by a pure tract of tandem ATCCT repeats of unknown length at its 3'-end. Intriguingly, expansions that carry these interruption motifs correlate with an epileptic seizure phenotype and are unstable despite the theory that interruptions are expected to stabilize expanded repeats...
2017: PloS One
https://www.readbyqxmd.com/read/28420716/a-men1-pancreatic-neuroendocrine-tumour-mouse-model-under-temporal-control
#12
Kate E Lines, Roeland P Vas Nunes, Morten Frost, Christopher J Yates, Mark Stevenson, Rajesh Thakker
Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant disorder characterised by occurrence of parathyroid tumours, and neuroendocrine tumours (NETs) of the pancreatic islets and anterior pituitary. The MEN1 gene, encoding menin, is a tumour suppressor, but its precise role in initiating in vivo tumourigenesis remains to be elucidated. The availability of a temporally controlled conditional MEN1 mouse model would greatly facilitate the study of such early tumourigenic events, and overcome the limitations of other MEN1 knockout models, in which menin is lost from conception, or tumour development occurs asynchronously...
April 18, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28419064/the-application-of-next-generation-sequencing-for-mutation-detection-in-autosomal-dominant-hereditary-hearing-impairment
#13
Nicolas Gürtler, Benno Röthlisberger, Katja Ludin, Christoph Schlegel, Anil K Lalwani
OBJECTIVE: Identification of the causative mutation using next-generation sequencing in autosomal-dominant hereditary hearing impairment, as mutation analysis in hereditary hearing impairment by classic genetic methods, is hindered by the high heterogeneity of the disease. PATIENTS: Two Swiss families with autosomal-dominant hereditary hearing impairment. INTERVENTION: Amplified DNA libraries for next-generation sequencing were constructed from extracted genomic DNA, derived from peripheral blood, and enriched by a custom-made sequence capture library...
April 17, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28418891/risk-of-aortic-aneurysm-and-dissection-in-patients-with-autosomal-dominant-polycystic-kidney-disease-a-nationwide-population-based-cohort-study
#14
Pei-Hsun Sung, Yao-Hsu Yang, Hsin-Ju Chiang, John Y Chiang, Chi-Jen Chen, Chien-Ting Liu, Cheuk-Man Yu, Hon-Kan Yip
Although cardiovascular complications are the most common cause of death in patients with autosomal-dominant polycystic kidney disease (ADPKD), the incidence and risk of aortic aneurysm and dissection (AAD) in ADPKD remains unclear due to limited data and insufficient cases. We utilized the data from Taiwan National Health Insurance Research Database (NHIRD) to do a population-based cohort study (1997-2008). After excluding those patients with age <18 years old and initially concomitant diagnoses of end-stage renal disease and AAD, a total of 2076 ADPKD patients were selected from 1,000,000 of general population...
March 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28417969/massive-introgression-drives-species-radiation-at-the-range-limit-of-anopheles-gambiae
#15
José L Vicente, Christopher S Clarkson, Beniamino Caputo, Bruno Gomes, Marco Pombi, Carla A Sousa, Tiago Antao, João Dinis, Giordano Bottà, Emiliano Mancini, Vincenzo Petrarca, Daniel Mead, Eleanor Drury, James Stalker, Alistair Miles, Dominic P Kwiatkowski, Martin J Donnelly, Amabélia Rodrigues, Alessandra Della Torre, David Weetman, João Pinto
Impacts of introgressive hybridisation may range from genomic erosion and species collapse to rapid adaptation and speciation but opportunities to study these dynamics are rare. We investigated the extent, causes and consequences of a hybrid zone between Anopheles coluzzii and Anopheles gambiae in Guinea-Bissau, where high hybridisation rates appear to be stable at least since the 1990s. Anopheles gambiae was genetically partitioned into inland and coastal subpopulations, separated by a central region dominated by A...
April 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28417142/heterozygous-pdgfrb-mutation-in-a-three-generation-family-with-autosomal-dominant-infantile-myofibromatosis
#16
Clemence Lepelletier, Yasser Al-Sarraj, Christine Bodemer, Hibbah Shaath, Sylvie Fraitag, Marios Kambouris, Dominique Hamel-Teillac, Hatem El Shanti, Smail Hadj-Rabia
is missing (Short communication).
April 18, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/28414661/delayed-presentation-of-tuberour-sclerosis-complex-in-adult-women
#17
J Manalac, S Sadd, G Akoghlanian, T Benoit-Clark
INTRODUCTION: Tuberous sclerosis complex (TSC); is an autosomal dominant disorder characterized by the formation of hamartomatous lesions in multiple organs, with a birth incidence of around one in 10,000. Although it usually manifests itself in early life, we present a case of an adult woman who we diagnosed with TSC. CASE: A 27 year old woman presented to Emergency Department with worsening right flank pain and progressive dyspnea. Physical examination findings revealed Shagreen patches and multiple angiomyolipomas of the skin...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28413688/presentation-and-care-of-a-family-with-huntington-disease-in-a-resource-limited-community
#18
Jarmal Charles, Lindyann Lessey, Jennifer Rooney, Ingmar Prokop, Katherine Yearwood, Hazel Da Breo, Patrick Rooney, Ruth H Walker, Andrew K Sobering
BACKGROUND: In high-income countries patients with Huntington disease (HD) typically present to healthcare providers after developing involuntary movements, or for pre-symptomatic genetic testing if at familial risk. A positive family history is a major guide when considering the decision to perform genetic testing for HD, both in affected and unaffected patients. Management of HD is focused upon control of symptoms, whether motor, cognitive, or psychiatric. There is no clear evidence to date of any disease-modifying agents...
2017: Journal of Clinical Movement Disorders
https://www.readbyqxmd.com/read/28413544/abdominal-schwannoma-in-a-case-of-neurofibromatosis-type-2-a-report-of-a-rare-combination
#19
Khandkar Ali Kawsar, Md Raziul Haque, Forhad Hossain Chowdhury
Neurofibromatosis-2 (NF2) is an autosomal-dominant disease, which is characterized by vestibular schwannomas (VSs) (acoustic neurinoma) as well as tumours of the peripheral and central nervous system, demonstrating a variety of expression. A 12-year-old girl presented to us with headache and ataxia for four months. We examined and found a lump in the right side of her abdomen. On magnetic resonance imaging (MRI) of brain, a bilateral VS at the cerebellopontine (CP) angle was detected, and on computerized tomography (CT) scan and ultrasonography of her abdomen a large retroperitoneal schwannoma was revealed in the right side of her abdomen...
January 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28413499/identification-a-nonsense-mutation-of-apc-gene-in-chinese-patients-with-familial-adenomatous-polyposis
#20
Haishan Li, Lingling Zhang, Quan Jiang, Zhenwang Shi, Hanxing Tong
Familial adenomatous polyposis (FAP; Mendelian of Inherintance in Man ID, 175100) is a rare autosomal dominant disorder characterized by the development of numerous adenomatous polyps throughout the colon and rectum associated with an increased risk of colorectal cancer. FAP is at time accompanied with certain extraintestinal manifestations such as congenital hypertrophy of the retinal pigment epithelium, dental disorders and desmoid tumors. It is caused by mutations in the adenomatous polyposis coli (APC) gene...
April 2017: Experimental and Therapeutic Medicine
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