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https://www.readbyqxmd.com/read/29706634/germline-variants-in-smarcb1-and-other-members-of-the-baf-chromatin-remodeling-complex-across-human-disease-entities-a-meta-analysis
#1
REVIEW
Till Holsten, Susanne Bens, Florian Oyen, Karolina Nemes, Martin Hasselblatt, Uwe Kordes, Reiner Siebert, Michael C Frühwald, Reinhard Schneppenheim, Ulrich Schüller
Germline variants that affect function are found in seven genes of the BAF chromatin-remodeling complex. They are linked to a broad range of diseases that, according to the gene affected, range from non-syndromic or syndromic neurodevelopmental disorders to low-grade tumors and malignancies. In the current meta-analysis, we evaluate genetic and clinical data from more than 400 families and 577 patients affected by BAF germline alterations. We focus on SMARCB1, including 43 unpublished patients from the EU-RHAB registry and our institution...
April 30, 2018: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29698805/extending-the-clinical-and-genetic-spectrum-of-arid2-related-intellectual-disability-a-case-series-of-7-patients
#2
Gabriella Gazdagh, Moira Blyth, Ingrid Scurr, Peter D Turnpenny, Sarju G Mehta, Ruth Armstrong, Meriel McEntagart, Ruth Newbury-Ecob, Edward S Tobias, Shelagh Joss
In the last 3 years de novo sequence variants in the ARID2 (AT-rich interaction domain 2) gene, a subunit of the SWI/SNF complex, have been linked to intellectual disabilities in 3 case reports including one which describes frameshift mutations in ARID2 in 2 patients with features resembling Coffin-Siris syndrome. Coffin-Siris syndrome (CSS) is a rare congenital syndrome characterized by intellectual deficit, coarse facial features and hypoplastic or absent fifth fingernails and/or toenails among other features...
April 23, 2018: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/29619237/refining-the-clinical-phenotype-of-okur-chung-neurodevelopmental-syndrome
#3
Moe Akahira-Azuma, Yoshinori Tsurusaki, Yumi Enomoto, Jun Mitsui, Kenji Kurosawa
We describe an 8-year-old Japanese boy with a de novo recurrent missense mutation in CSNK2A1 , c.593A>G, that is causative of Okur-Chung neurodevelopmental syndrome. He exhibited distinctive facial features, severe growth retardation with relative macrocephaly, and friendly, hyperactive behavior. His dysmorphic features might suggest a congenital histone modification defect syndrome, such as Kleefstra, Coffin-Siris, or Rubinstein-Taybi syndromes, which are indicative of functional interactions between the casein kinase II, alpha 1 gene and histone modification factors...
2018: Human Genome Variation
https://www.readbyqxmd.com/read/29549119/the-case-for-early-use-of-rapid-whole-genome-sequencing-in-management-of-critically-ill-infants-late-diagnosis-of-coffin-siris-syndrome-in-an-infant-with-left-congenital-diaphragmatic-hernia-congenital-heart-disease-and-recurrent-infections
#4
Nathaly M Sweeney, Shareef A Nahas, Shimul Chowdhury, Miguel Del Campo, Marilyn C Jones, David P Dimmock, Stephen F Kingsmore, Rcigm Investigators
Congenital diaphragmatic hernia (CDH) results from incomplete formation of the diaphragm leading to herniation of abdominal organs into the thoracic cavity. CDH is associated with pulmonary hypoplasia, congenital heart disease and pulmonary hypertension. Genetically, it is associated with aneuploidies, chromosomal copy number variants, and single gene mutations. CDH is the most expensive non-cardiac congenital defect: Management frequently requires implementation of Extracorporeal Membrane Oxygenation (ECMO), which increases management expenditures 2...
March 16, 2018: Cold Spring Harbor Molecular Case Studies
https://www.readbyqxmd.com/read/29504208/hepatomegaly-in-a-boy-with-arid1b-related-coffin-siris-syndrome
#5
Takenori Natsume, Kyoko Takano, Mitsuo Motobayashi, Tomoki Kosho
No abstract text is available yet for this article.
April 2018: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/29437512/observation-of-cleft-palate-in-an-individual-with-sox11-mutation-indication-of-a-role-for-sox11-in-human-palatogenesis
#6
Umair Khan, Ddd Study, Eleanor Baker, Jill Clayton-Smith
OBJECTIVE: Point mutations and deletions within the SOX11 gene have recently been described in individuals with a rare variant of Coffin-Siris syndrome, OMIM 615866, an intellectual disability syndrome with associated features of nail hypoplasia, microcephaly, and characteristic facial features including a wide mouth and prominent lips. PARTICIPANT: We describe a further patient with a mutation in SOX11 and phenotype resembling mild Coffin-Siris syndrome. RESULTS: This boy had a cleft palate, a feature not previously seen in other patients with SOX11 mutations...
March 2018: Cleft Palate-craniofacial Journal
https://www.readbyqxmd.com/read/29429572/mutations-in-the-baf-complex-subunit-dpf2-are-associated-with-coffin-siris-syndrome
#7
Georgia Vasileiou, Silvia Vergarajauregui, Sabine Endele, Bernt Popp, Christian Büttner, Arif B Ekici, Marion Gerard, Nuria C Bramswig, Beate Albrecht, Jill Clayton-Smith, Jenny Morton, Susan Tomkins, Karen Low, Astrid Weber, Maren Wenzel, Janine Altmüller, Yun Li, Bernd Wollnik, George Hoganson, Maria-Renée Plona, Megan T Cho, Christian T Thiel, Hermann-Josef Lüdecke, Tim M Strom, Eduardo Calpena, Andrew O M Wilkie, Dagmar Wieczorek, Felix B Engel, André Reis
Variants affecting the function of different subunits of the BAF chromatin-remodelling complex lead to various neurodevelopmental syndromes, including Coffin-Siris syndrome. Furthermore, variants in proteins containing PHD fingers, motifs recognizing specific histone tail modifications, have been associated with several neurological and developmental-delay disorders. Here, we report eight heterozygous de novo variants (one frameshift, two splice site, and five missense) in the gene encoding the BAF complex subunit double plant homeodomain finger 2 (DPF2)...
March 1, 2018: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29397238/hereditary-swi-snf-complex-deficiency-syndromes
#8
REVIEW
Abbas Agaimy, William D Foulkes
The SWItch Sucrose non-fermentable (SWI/SNF) complex is a highly conserved multi-subunit complex of proteins encoded by numerous genes mapped to different chromosomal regions. The complex regulates the process of chromatin remodelling and hence plays a central role in the epigenetic regulation of gene expression, cell proliferation and differentiation. During the last three decades, the SWI/SNF complex has been increasingly recognized as a central molecular event driving the initiation and/or progression of several benign and malignant neoplasms of different anatomic origin and having diverse histomorphological appearance...
February 1, 2018: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/29351919/high-yield-of-pathogenic-germline-mutations-causative-or-likely-causative-of-the-cancer-phenotype-in-selected-children-with-cancer
#9
Illja J Diets, Esmé Waanders, Marjolijn J Ligtenberg, Diede A G van Bladel, Eveline J Kamping, Peter M Hoogerbrugge, Saskia Hopman, Maran J Olderode-Berends, Erica H Gerkes, David A Koolen, Carlo Marcelis, Gijs W Santen, Martine J van Belzen, Dylan Mordaunt, Lesley McGregor, Elizabeth Thompson, Antonis Kattamis, Agata Pastorczak, Wojciech Mlynarski, Denisa Ilencikova, Anneke Vulto- van Silfhout, Thatjana Gardeitchik, Eveline S de Bont, Jan Loeffen, Anja Wagner, Arjen R Mensenkamp, Roland P Kuiper, Nicoline Hoogerbrugge, Marjolijn C Jongmans
Purpose: In many children with cancer and characteristics suggestive of a genetic predisposition syndrome, the genetic cause is still unknown. We studied the yield of pathogenic mutations by applying whole-exome sequencing on a selected cohort of children with cancer. Experimental Design: To identify mutations in known and novel cancer-predisposing genes, we performed trio-based whole-exome sequencing on germline DNA of 40 selected children and their parents. These children were diagnosed with cancer and had at least one of the following features: (1) intellectual disability and/or congenital anomalies, (2) multiple malignancies, (3) family history of cancer, or (4) an adult type of cancer...
April 1, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28884947/confirmation-of-an-arid2-defect-in-swi-snf-related-intellectual-disability
#10
Ruben Van Paemel, Pauline De Bruyne, Saskia van der Straaten, Marleen D'hondt, Urlien Fränkel, Annelies Dheedene, Björn Menten, Bert Callewaert
We present a 4-year-old girl with delayed neuromotor development, short stature of prenatal onset, and specific behavioral and craniofacial features harboring an intragenic deletion in the ARID2 gene. The phenotype confirmed the major features of the recently described ARID2-related intellectual disability syndrome. However, our patient showed overlapping features with Nicolaides-Baraitser syndrome and Coffin-Siris syndrome, providing further arguments to reclassify these disorders as "SWI/SNF-related intellectual disability syndromes...
September 8, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28781848/successful-difficult-airway-management-of-a-child-with-coffin-siris-syndrome
#11
Ahmet Selim Ozkan, Sedat Akbas, Mehmet Ridvan Yalin, Emine Ozdemir, Zeynep Koylu
Management of airway in patients who have Coffin-Siris syndrome (CSS) is often problematic because most of these patients have difficult airway. NTI via C-MAC VL is an useful alternative to direct laryngoscope for orotracheal intubation in airway and anesthetic management in a case of CSS. Alternative airway devices should be readily available.
August 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28695822/arid1b-haploinsufficient-mice-reveal-neuropsychiatric-phenotypes-and-reversible-causes-of-growth-impairment
#12
Cemre Celen, Jen-Chieh Chuang, Xin Luo, Nadine Nijem, Angela K Walker, Fei Chen, Shuyuan Zhang, Andrew S Chung, Liem H Nguyen, Ibrahim Nassour, Albert Budhipramono, Xuxu Sun, Levinus A Bok, Meriel McEntagart, Evelien F Gevers, Shari G Birnbaum, Amelia J Eisch, Craig M Powell, Woo-Ping Ge, Gijs We Santen, Maria Chahrour, Hao Zhu
Sequencing studies have implicated haploinsufficiency of ARID1B, a SWI/SNF chromatin-remodeling subunit, in short stature (Yu et al., 2015), autism spectrum disorder (O'Roak et al., 2012), intellectual disability (Deciphering Developmental Disorders Study, 2015), and corpus callosum agenesis (Halgren et al., 2012). In addition, ARID1B is the most common cause of Coffin-Siris syndrome, a developmental delay syndrome characterized by some of the above abnormalities (Santen et al., 2012; Tsurusaki et al., 2012; Wieczorek et al...
July 11, 2017: ELife
https://www.readbyqxmd.com/read/28608987/smarca4-inactivating-mutations-cause-concomitant-coffin-siris-syndrome-microphthalmia-and-small-cell-carcinoma-of-the-ovary-hypercalcaemic-type
#13
Edoardo Errichiello, Noor Mustafa, Annalisa Vetro, Lucia Dora Notarangelo, Hugo de Jonge, Berardo Rinaldi, Debora Vergani, Sabrina Rita Giglio, Patrizia Morbini, Orsetta Zuffardi
SMARCA4 chromatin remodelling factor is mutated in 11% of Coffin-Siris syndrome (CSS) patients and in almost all small-cell carcinoma of the ovary hypercalcaemic type (SCCOHT) tumours. Missense mutations with gain-of-function or dominant-negative effects are associated with CSS, whereas inactivating mutations, leading to loss of SMARCA4 expression, have been exclusively found in SCCOHT. We applied whole-exome sequencing to study a 15-year-old patient with mild CSS who concomitantly developed SCCOHT at age 13 years...
September 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28566769/a-commentary-on-ankrd11-variants-cause-variable-clinical-features-associated-with-kbg-syndrome-and-coffin-siris-like-syndrome
#14
Tadashi Kaname, Kumiko Yanagi
No abstract text is available yet for this article.
August 2017: Journal of Human Genetics
https://www.readbyqxmd.com/read/28250421/ankrd11-variants-cause-variable-clinical-features-associated-with-kbg-syndrome-and-coffin-siris-like-syndrome
#15
Satoko Miyatake, Nobuhiko Okamoto, Zornitza Stark, Makoto Nabetani, Yoshinori Tsurusaki, Mitsuko Nakashima, Noriko Miyake, Takeshi Mizuguchi, Akira Ohtake, Hirotomo Saitsu, Naomichi Matsumoto
KBG syndrome (KBGS) is an autosomal dominant multiple congenital anomaly-intellectual disability syndrome, characterized by developmental delay with neurological involvements, macrodontia of the upper central incisors, characteristic facial dysmorphism and skeletal anomalies. Variants in ANKRD11 cause KBGS. We present five individuals from four families with ANKRD11 variants identified by whole-exome sequencing. Four of the five were clinically affected, and their diagnoses were varied. One was typical KBGS, two were Coffin-Siris syndrome-like (CSS), and one was intellectual disability with infantile spasms...
August 2017: Journal of Human Genetics
https://www.readbyqxmd.com/read/28124119/heterozygosity-for-arid2-loss-of-function-mutations-in-individuals-with-a-coffin-siris-syndrome-like-phenotype
#16
Nuria C Bramswig, O Caluseriu, H-J Lüdecke, F V Bolduc, N C L Noel, T Wieland, H M Surowy, H-J Christen, H Engels, T M Strom, D Wieczorek
Chromatin remodeling is a complex process shaping the nucleosome landscape, thereby regulating the accessibility of transcription factors to regulatory regions of target genes and ultimately managing gene expression. The SWI/SNF (switch/sucrose nonfermentable) complex remodels the nucleosome landscape in an ATP-dependent manner and is divided into the two major subclasses Brahma-associated factor (BAF) and Polybromo Brahma-associated factor (PBAF) complex. Somatic mutations in subunits of the SWI/SNF complex have been associated with different cancers, while germline mutations have been associated with autism spectrum disorder and the neurodevelopmental disorders Coffin-Siris (CSS) and Nicolaides-Baraitser syndromes (NCBRS)...
March 2017: Human Genetics
https://www.readbyqxmd.com/read/28120103/mutations-in-chromatin-regulators-functionally-link-cornelia-de-lange-syndrome-and-clinically-overlapping-phenotypes
#17
Ilaria Parenti, María E Teresa-Rodrigo, Jelena Pozojevic, Sara Ruiz Gil, Ingrid Bader, Diana Braunholz, Nuria C Bramswig, Cristina Gervasini, Lidia Larizza, Lutz Pfeiffer, Ferda Ozkinay, Feliciano Ramos, Benedikt Reiz, Olaf Rittinger, Tim M Strom, Erwan Watrin, Kerstin Wendt, Dagmar Wieczorek, Bernd Wollnik, Carolina Baquero-Montoya, Juan Pié, Matthew A Deardorff, Gabriele Gillessen-Kaesbach, Frank J Kaiser
The coordinated tissue-specific regulation of gene expression is essential for the proper development of all organisms. Mutations in multiple transcriptional regulators cause a group of neurodevelopmental disorders termed "transcriptomopathies" that share core phenotypical features including growth retardation, developmental delay, intellectual disability and facial dysmorphism. Cornelia de Lange syndrome (CdLS) belongs to this class of disorders and is caused by mutations in different subunits or regulators of the cohesin complex...
March 2017: Human Genetics
https://www.readbyqxmd.com/read/28003643/kaufman-oculo-cerebro-facial-syndrome-in-a-child-with-small-and-absent-terminal-phalanges-and-absent-nails
#18
Ariana Kariminejad, Norbert Fonya Ajeawung, Bita Bozorgmehr, Alexandre Dionne-Laporte, Sirinart Molidperee, Kimia Najafi, Richard A Gibbs, Brendan H Lee, Raoul C Hennekam, Philippe M Campeau
Kaufman oculo-cerebro-facial syndrome (KOS) is caused by recessive UBE3B mutations and presents with microcephaly, ocular abnormalities, distinctive facial morphology, low cholesterol levels and intellectual disability. We describe a child with microcephaly, brachycephaly, hearing loss, ptosis, blepharophimosis, hypertelorism, cleft palate, multiple renal cysts, absent nails, small or absent terminal phalanges, absent speech and intellectual disability. Syndromes that were initially considered include DOORS syndrome, Coffin-Siris syndrome and Dubowitz syndrome...
April 2017: Journal of Human Genetics
https://www.readbyqxmd.com/read/27867341/disorders-of-transcriptional-regulation-an-emerging-category-of-multiple-malformation-syndromes
#19
REVIEW
Kosuke Izumi
Some genetic disorders caused by mutations in genes encoding components of the transcriptional machinery as well as proteins involved in epigenetic modification of the genome share many overlapping features, such as facial dysmorphisms, growth problems and developmental delay/intellectual disability. As a basis for some shared phenotypic characteristics in these syndromes, a similar transcriptome disturbance, characterized by global transcriptional dysregulation, is believed to play a major role. In this review article, a general overview of gene transcription is provided, and the current knowledge of the mechanisms underlying some disorders of transcriptional regulation, such as Rubinstein- Taybi, Coffin-Siris, Cornelia de Lange, and CHOPS syndromes, are discussed...
October 2016: Molecular Syndromology
https://www.readbyqxmd.com/read/27672547/coffin-siris-syndrome-with-caf%C3%A3-au-lait-spots-obesity-and-hyperinsulinism-caused-by-a-mutation-in-the-arid1b-gene
#20
Fatma Mujgan Sonmez, Eyyup Uctepe, Mehmet Gunduz, Zeliha Gormez, Seval Erpolat, Murat Oznur, Mahmut Samil Sagiroglu, Huseyin Demirci, Esra Gunduz
Coffin-Siris syndrome (CSS) (MIM 135900) is characterized by developmental delay, severe speech impairment, distinctive facial features, hypertrichosis, aplasia or hypoplasia of the distal phalanx or nail of the fifth digit and agenesis of the corpus callosum. Recently, it was shown that mutations in the ARID1B gene are the main cause of CSS, accounting for 76% of identified mutations. Here, we report a 15 year-old female patient who was admitted to our clinic with seizures, speech problems, dysmorphic features, bilaterally big, large thumb, café-au-lait (CAL) spots, obesity and hyperinsulinism...
August 2016: Intractable & Rare Diseases Research
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