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https://www.readbyqxmd.com/read/29445122/deep-phenotyping-of-speech-and-language-skills-in-individuals-with-16p11-2-deletion
#1
Cristina Mei, Evelina Fedorenko, David J Amor, Amber Boys, Caitlyn Hoeflin, Peter Carew, Trent Burgess, Simon E Fisher, Angela T Morgan
Recurrent deletions of a ~600-kb region of 16p11.2 have been associated with a highly penetrant form of childhood apraxia of speech (CAS). Yet prior findings have been based on a small, potentially biased sample using retrospectively collected data. We examine the prevalence of CAS in a larger cohort of individuals with 16p11.2 deletion using a prospectively designed assessment battery. The broader speech and language phenotype associated with carrying this deletion was also examined. 55 participants with 16p11...
February 14, 2018: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29434669/copy-number-variation-and-regions-of-homozygosity-analysis-in-patients-with-m%C3%A3-llerian-aplasia
#2
Durkadin Demir Eksi, Yiping Shen, Munire Erman, Lynn P Chorich, Megan E Sullivan, Meric Bilekdemir, Elanur Yılmaz, Guven Luleci, Hyung-Goo Kim, Ozgul M Alper, Lawrence C Layman
Background: Little is known about the genetic contribution to Müllerian aplasia, better known to patients as Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome. Mutations in two genes (WNT4 and HNF1B) account for a small number of patients, but heterozygous copy number variants (CNVs) have been described. However, the significance of these CNVs in the pathogenesis of MRKH is unknown, but suggests possible autosomal dominant inheritance. We are not aware of CNV studies in consanguineous patients, which could pinpoint genes important in autosomal recessive MRKH...
2018: Molecular Cytogenetics
https://www.readbyqxmd.com/read/29432158/16p11-2-transcription-factor-maz-is-a-dosage-sensitive-regulator-of-genitourinary-development
#3
Meade Haller, Jason Au, Marisol O'Neill, Dolores J Lamb
Genitourinary (GU) birth defects are among the most common yet least studied congenital malformations. Congenital anomalies of the kidney and urinary tract (CAKUTs) have high morbidity and mortality rates and account for ∼30% of structural birth defects. Copy number variation (CNV) mapping revealed that 16p11.2 is a hotspot for GU development. The only gene covered collectively by all of the mapped GU-patient CNVs was MYC-associated zinc finger transcription factor (MAZ), and MAZ CNV frequency is enriched in nonsyndromic GU-abnormal patients...
February 5, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29410544/prenatal-microarray-analysis-in-right-aortic-arch-a-retrospective-cohort-study-and-review-of-the-literature
#4
Idit Maya, Amihood Singer, Hagit N Baris, Yael Goldberg, Adel Shalata, Morad Khayat, Shay Ben-Shachar, Lena Sagi-Dain
OBJECTIVE: To examine the risk for clinically significant chromosomal microarray analysis (CMA) findings in fetal right aortic arch (RAA). METHODS: Data from all CMA analyses performed owing to isolated RAA reported to the Israeli Ministry of Health between January 2013 and September 2016 were evaluated retrospectively. Risk for abnormal CMA findings was compared with two control populations, based on both previously described 9272 pregnancies with normal ultrasound, and on a local cohort of 5541 pregnancies undergoing CMA testing owing to maternal request...
February 6, 2018: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29393095/myc-amplification-in-the-form-of-ring-chromosomes-8-in-acute-myeloid-leukemia-with-t-11-16-q13-p11-2
#5
Katsuya Yamamoto, Shinichiro Kawamoto, Keiji Kurata, Akihito Kitao, Yu Mizutani, Hiroya Ichikawa, Kimikazu Yakushijin, Kazuyoshi Kajimoto, Yoshitake Hayashi, Hiroshi Matsuoka, Hironobu Minami
Oncogene amplification is uncommon in acute myeloid leukemia (AML). Cytogenetically, it is primarily found as double minute chromosomes (dmin) or homogeneously staining regions (hsr). A 62-year-old woman was admitted to our hospital because of anemia and thrombocytopenia. Her bone marrow was hypercellular with 78.6% myeloperoxidase- positive blasts. Some had micronuclei. The patient was diagnosed with AML M2 and remains in complete remission (CR) after induction therapy. G-banding at diagnosis showed 51,XX,t(11;16)(q13;p11...
January 24, 2018: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/29375855/longitudinal-report-of-child-with-de-novo-16p11-2-triplication
#6
Arianne S Wallace, Caitlin M Hudac, Kyle J Steinman, Jessica L Peterson, Trent D DesChamps, Michael H Duyzend, Xander Nuttle, Evan E Eichler, Raphael A Bernier
16p11.2 deletions and duplications are commonly associated with autism spectrum disorder and linked to mirrored phenotypes of physical characteristics and higher penetrance for deletions. A male with a rare 16p11.2 triplication demonstrated a similar phenotypic presentation to deletion carriers with neurocognitive and adaptive skill deficits and above-average physical growth.
January 2018: Clinical Case Reports
https://www.readbyqxmd.com/read/29375670/chromothripsis-18-in-multiple-myeloma-patient-with-rapid-extramedullary-relapse
#7
Jan Smetana, Jan Oppelt, Martin Štork, Luděk Pour, Petr Kuglík
Background: Catastrophic chromosomal event known as chromothripsis was proven to be a significant hallmark of poor prognosis in several cancer diseases. While this phenomenon is very rare in among multiple myeloma (MM) patients, its presence in karyotype is associated with very poor prognosis. Case presentation: In our case, we report a 62 year female patient with rapid progression of multiple myeloma (MM) into extramedullary disease and short overall survival (OS = 23 months)...
2018: Molecular Cytogenetics
https://www.readbyqxmd.com/read/29352208/abnormal-speech-motor-control-in-individuals-with-16p11-2-deletions
#8
Carly Demopoulos, Hardik Kothare, Danielle Mizuiri, Jennifer Henderson-Sabes, Brieana Fregeau, Jennifer Tjernagel, John F Houde, Elliott H Sherr, Srikantan S Nagarajan
Speech and motor deficits are highly prevalent (>70%) in individuals with the 600 kb BP4-BP5 16p11.2 deletion; however, the mechanisms that drive these deficits are unclear, limiting our ability to target interventions and advance treatment. This study examined fundamental aspects of speech motor control in participants with the 16p11.2 deletion. To assess capacity for control of voice, we examined how accurately and quickly subjects changed the pitch of their voice within a trial to correct for a transient perturbation of the pitch of their auditory feedback...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352010/genetics-of-syndromic-and-non-syndromic-mitral-valve-prolapse
#9
REVIEW
Thierry Le Tourneau, Jean Mérot, Antoine Rimbert, Solena Le Scouarnec, Vincent Probst, Hervé Le Marec, Robert A Levine, Jean-Jacques Schott
Mitral valve prolapse (MVP) is a common condition that affects 2%-3% of the general population. MVP is thought to include syndromic forms such as Marfan syndrome and non-syndromic MVP, which is the most frequent form. Myxomatous degeneration and fibroelastic deficiency (FED) are regarded as two different forms of non-syndromic MVP. While FED is still considered a degenerative disease associated with ageing, frequent familial clustering has been demonstrated for myxomatous MVP. Familial and genetic studies led to the recognition of reduced penetrance and large phenotypic variability, and to the identification of prodromal or atypical forms as a part of the complex spectrum of the disease...
January 19, 2018: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29320483/microarray-analysis-in-pregnancies-with-isolated-unilateral-kidney-agenesis
#10
Lena Sagi-Dain, Idit Maya, Peleg Amir, Reches Adi, Ehud Banne, Hagit N Baris, Tenne Tamar, Amihood Singer, Shay Ben-Shachar
OBJECTIVE: To examine the risk for submicroscopic chromosomal aberrations among fetuses with apparently isolated solitary kidney. METHODS: Data acquisition was performed retrospectively by searching Israeli Ministry of Health computerized database. All cases having chromosomal microarray analysis (CMA) referred due to an indication of isolated unilateral kidney agenesis between January 2013 and September 2016 were included. Rate of clinically significant CMA findings in these pregnancies was compared to pregnancies with normal ultrasound, based on a systematic review encompassing 9792 cases and local data of 5541 pregnancies undergoing CMA due to maternal request...
January 10, 2018: Pediatric Research
https://www.readbyqxmd.com/read/29317992/transposition-of-the-great-arteries-a-phenotype-associated-with-16p11-2-duplications
#11
Zarmiga Karunanithi, Else Marie Vestergaard, Mette H Lauridsen
Genetic analyses of patients with transposition of the great arteries have identified rare copy number variations, suggesting that they may be significant to the aetiology of the disease. This paper reports the identification of a 16p11.2 microduplication, a variation that has yet to be reported in association with transposition of the great arteries. The 16p11.2 microduplication is associated with autism spectrum disorder and developmental delay, but with highly variable phenotypic effects. Autism and attention deficit disorders are observed more frequently in children with congenital heart disease than in the general population...
December 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/29212915/altered-synaptic-transmission-and-maturation-of-hippocampal-ca1-neurons-in-a-mouse-model-of-human-chr16p11-2-microdeletion
#12
Hung-Chi Lu, Alea A Mills, Di Tian
The pathophysiology of neurodevelopmental disorders is often expressed early in infancy and toddlerhood. Mouse models of syndromic disorders have provided insight regarding mechanisms of action, but most studies have focused on characterization in juveniles and adults. Insight into developmental trajectories, particularly related to circuit and synaptic function, likely will yield important information regarding disorder pathogenesis that leads to symptom progression. Chromosome 16p11.2 microdeletion is one of the most common copy number variations associated with a spectrum of neurodevelopmental disorders...
December 6, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29212016/cellular-phenotypes-in-human-ipsc-derived-neurons-from-a-genetic-model-of-autism-spectrum-disorder
#13
Aditi Deshpande, Smita Yadav, Dang Q Dao, Zhi-Yong Wu, Kenton C Hokanson, Michelle K Cahill, Arun P Wiita, Yuh-Nung Jan, Erik M Ullian, Lauren A Weiss
A deletion or duplication in the 16p11.2 region is associated with neurodevelopmental disorders, including autism spectrum disorder and schizophrenia. In addition to clinical characteristics, carriers of the 16p11.2 copy-number variant (CNV) manifest opposing neuroanatomical phenotypes-e.g., macrocephaly in deletion carriers (16pdel) and microcephaly in duplication carriers (16pdup). Using fibroblasts obtained from 16pdel and 16pdup carriers, we generated induced pluripotent stem cells (iPSCs) and differentiated them into neurons to identify causal cellular mechanisms underlying neurobiological phenotypes...
December 5, 2017: Cell Reports
https://www.readbyqxmd.com/read/29132464/-clinical-manifestations-and-genetic-diagnosis-of-paroxysmal-kinesigenic-dyskinesia
#14
Xiao-Ming Zhu, Yu-Hong Gong, Si Lu, Shou-Chao Cheng, Bao-Zhen Yao
The clinical manifestations of five children with paroxysmal kinesigenic dyskinesia (PKD) were retrospectively analyzed and their gene mutations were analyzed by high-throughput sequencing and chromosome microarray. The 5 patients consisted of 4 males and 1 female and the age of onset was 6-9 years. Dyskinesia was induced by sudden turn movement, scare, mental stress, or other factors. These patients were conscious and had abnormal posture of unilateral or bilateral extremities, athetosis, facial muscle twitching, and abnormal body posture...
November 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29050216/high-number-of-chromosomal-copy-number-aberrations-inversely-relates-to-t-11-19-q21-p13-translocation-status-in-mucoepidermoid-carcinoma-of-the-salivary-glands
#15
Johannes H Matse, Enno C I Veerman, Jan G M Bolscher, C René Leemans, Bauke Ylstra, Elisabeth Bloemena
Although rare, mucoepidermoid carcinoma (MEC) is one of the most common malignant salivary gland tumors. The presence of the t(11;19)(q21;p13) translocation in a subset of MECs has raised interest in genomic aberrations in MEC. In the present study we conducted genome-wide copy-number-aberration analysis by micro-array comparative-genomic-hybridization on 27 MEC samples. Low/intermediate-grade MECs had significantly fewer copy-number-aberrations compared to high-grade MECs (low vs high: 3.48 vs 30; p = 0.0025; intermediate vs high: 5...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29038598/male-specific-deficits-in-natural-reward-learning-in-a-mouse-model-of-neurodevelopmental-disorders
#16
N M Grissom, S E McKee, H Schoch, N Bowman, R Havekes, W T O'Brien, E Mahrt, S Siegel, K Commons, C Portfors, T Nickl-Jockschat, T M Reyes, T Abel
Neurodevelopmental disorders, including autism spectrum disorders, are highly male biased, but the underpinnings of this are unknown. Striatal dysfunction has been strongly implicated in the pathophysiology of neurodevelopmental disorders, raising the question of whether there are sex differences in how the striatum is impacted by genetic risk factors linked to neurodevelopmental disorders. Here we report male-specific deficits in striatal function important to reward learning in a mouse model of 16p11.2 hemideletion, a genetic mutation that is strongly associated with the risk of neurodevelopmental disorders, particularly autism and attention-deficit hyperactivity disorder...
October 17, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29037952/-phenotype-variability-in-thirteen-16p11-2-deletion-patients
#17
Diana Rodà, Elisabeth Gabau, Neus Baena, Miriam Guitart
No abstract text is available yet for this article.
October 13, 2017: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/28984295/r-baclofen-reverses-cognitive-deficits-and-improves-social-interactions-in-two-lines-of-16p11-2-deletion-mice
#18
Laura J Stoppel, Tatiana M Kazdoba, Melanie D Schaffler, Anthony R Preza, Arnold Heynen, Jacqueline N Crawley, Mark F Bear
Human chromosome 16p11.2 microdeletion is among the most common gene copy number variations (CNVs) known to confer risk for intellectual disability (ID) and autism spectrum disorder (ASD), and affects an estimated 3 in 10 000 people. Caused by a single copy deletion of ~27 genes, 16p11.2 microdeletion syndrome is characterized by ID, impaired language, communication and socialization skills, and ASD. Studies in animal models where a single copy of the syntenic 16p11.2 region has been deleted have revealed morphological, behavioral, and electrophysiological abnormalities...
October 6, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28965845/the-immune-signaling-adaptor-lat-contributes-to-the-neuroanatomical-phenotype-of-16p11-2-bp2-bp3-cnvs
#19
Maria Nicla Loviglio, Thomas Arbogast, Aia Elise Jønch, Stephan C Collins, Konstantin Popadin, Camille S Bonnet, Giuliana Giannuzzi, Anne M Maillard, Sébastien Jacquemont, Binnaz Yalcin, Nicholas Katsanis, Christelle Golzio, Alexandre Reymond
Copy-number changes in 16p11.2 contribute significantly to neuropsychiatric traits. Besides the 600 kb BP4-BP5 CNV found in 0.5%-1% of individuals with autism spectrum disorders and schizophrenia and whose rearrangement causes reciprocal defects in head size and body weight, a second distal 220 kb BP2-BP3 CNV is likewise a potent driver of neuropsychiatric, anatomical, and metabolic pathologies. These two CNVs are engaged in complex reciprocal chromatin looping, intimating a functional relationship between genes in these regions that might be relevant to pathomechanism...
October 5, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/28963451/cnv-association-meta-analysis-in-191-161-european-adults-reveals-new-loci-associated-with-anthropometric-traits
#20
Aurélien Macé, Marcus A Tuke, Patrick Deelen, Kati Kristiansson, Hannele Mattsson, Margit Nõukas, Yadav Sapkota, Ursula Schick, Eleonora Porcu, Sina Rüeger, Aaron F McDaid, David Porteous, Thomas W Winkler, Erika Salvi, Nick Shrine, Xueping Liu, Wei Q Ang, Weihua Zhang, Mary F Feitosa, Cristina Venturini, Peter J van der Most, Anders Rosengren, Andrew R Wood, Robin N Beaumont, Samuel E Jones, Katherine S Ruth, Hanieh Yaghootkar, Jessica Tyrrell, Aki S Havulinna, Harmen Boers, Reedik Mägi, Jennifer Kriebel, Martina Müller-Nurasyid, Markus Perola, Markku Nieminen, Marja-Liisa Lokki, Mika Kähönen, Jorma S Viikari, Frank Geller, Jari Lahti, Aarno Palotie, Päivikki Koponen, Annamari Lundqvist, Harri Rissanen, Erwin P Bottinger, Saima Afaq, Mary K Wojczynski, Petra Lenzini, Ilja M Nolte, Thomas Sparsø, Nicole Schupf, Kaare Christensen, Thomas T Perls, Anne B Newman, Thomas Werge, Harold Snieder, Timothy D Spector, John C Chambers, Seppo Koskinen, Mads Melbye, Olli T Raitakari, Terho Lehtimäki, Martin D Tobin, Louise V Wain, Juha Sinisalo, Annette Peters, Thomas Meitinger, Nicholas G Martin, Naomi R Wray, Grant W Montgomery, Sarah E Medland, Morris A Swertz, Erkki Vartiainen, Katja Borodulin, Satu Männistö, Anna Murray, Murielle Bochud, Sébastien Jacquemont, Fernando Rivadeneira, Thomas F Hansen, Albertine J Oldehinkel, Massimo Mangino, Michael A Province, Panos Deloukas, Jaspal S Kooner, Rachel M Freathy, Craig Pennell, Bjarke Feenstra, David P Strachan, Guillaume Lettre, Joel Hirschhorn, Daniele Cusi, Iris M Heid, Caroline Hayward, Katrin Männik, Jacques S Beckmann, Ruth J F Loos, Dale R Nyholt, Andres Metspalu, Johan G Eriksson, Michael N Weedon, Veikko Salomaa, Lude Franke, Alexandre Reymond, Timothy M Frayling, Zoltán Kutalik
There are few examples of robust associations between rare copy number variants (CNVs) and complex continuous human traits. Here we present a large-scale CNV association meta-analysis on anthropometric traits in up to 191,161 adult samples from 26 cohorts. The study reveals five CNV associations at 1q21.1, 3q29, 7q11.23, 11p14.2, and 18q21.32 and confirms two known loci at 16p11.2 and 22q11.21, implicating at least one anthropometric trait. The discovered CNVs are recurrent and rare (0.01-0.2%), with large effects on height (>2...
September 29, 2017: Nature Communications
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