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https://www.readbyqxmd.com/read/28260552/indomethacin-induced-and-prostaglandin-relieved-coarctation-of-the-aorta-in-right-aortic-arch-with-left-arterial-duct-a-case-report
#1
Stevi Golden-Plotnik, Herschel C Rosenberg, Luis A Altamirano-Diaz
We describe the case of an infant with DiGeorge syndrome born with a right aortic arch and left arterial duct. Despite the remote location of the right aortic arch from the left arterial duct, he developed coarctation of the aorta during treatment with indomethacin. This was relieved by prostaglandin treatment. This case highlights the fact that, even in the absence of an arterial duct, ductal tissue can still be present in the aorta, and cause coarctation when exposed to indomethacin. We also demonstrate the utility of prostaglandin for relief of this type of obstruction...
March 6, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28259864/-an-attempt-to-identify-22q11-2-microdeletions-in-samples-of-the-hungarian-schizophrenia-dna-bank-by-multiplex-ligation-based-probe-amplification-mlpa-literature-review-methodology-and-results
#2
Izabella Klein, Katalin Szocs, Katalin Vincze, Judit Benkovits, Szilvia Somogyi, Levente Herman, Janos M Rethelyi
Schizophrenia is a severe debilitating psychiatric disorder, with a typical onset in adolescence or early adulthood. This condition is characterized by heterogeneous symptoms (hallucinations, delusions, disorganized behaviour, affective flattening, and social isolation) and a life-time prevalence of 0.5-1.2%. In spite of the efforts to uncover the etiology of the disorder, its pathogenesis and neurobiological background are poorly understood. Given the high heritability in schizophrenia, genetic research remains an important area of focus...
December 2016: Neuropsychopharmacologia Hungarica
https://www.readbyqxmd.com/read/28224202/germline-specific-dgcr8-knockout-in-zebrafish-using-a-back-approach
#3
Yun Liu, Zeyao Zhu, Idy H T Ho, Yujian Shi, Yuxin Xie, Jianzhen Li, Yong Zhang, Matthew T V Chan, Christopher H K Cheng
Zebrafish is an important model to study developmental biology and human diseases. However, an effective approach to achieve spatial and temporal gene knockout in zebrafish has not been well established. In this study, we have developed a new approach, namely bacterial artificial chromosome-rescue-based knockout (BACK), to achieve conditional gene knockout in zebrafish using the Cre/loxP system. We have successfully deleted the DiGeorge syndrome critical region gene 8 (dgcr8) in zebrafish germ line and demonstrated that the maternal-zygotic dgcr8 (MZdgcr8) embryos exhibit MZdicer-like phenotypes with morphological defects which could be rescued by miR-430, indicating that canonical microRNAs play critical role in early development...
February 21, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28202261/hyperprolinemia-as-a-clue-in-the-diagnosis-of-a-patient-with-psychiatric-manifestations
#4
Marco Duarte, Joana Afonso, Ana Moreira, Diana Antunes, Cristina Ferreira, Hildeberto Correia, Margarida Marques, Sílvia Sequeira
Lately, microdeletions of the 22q region, responsible for DiGeorge syndrome or velocardiofacial syndrome, have been increasingly related to neuropsychiatric disorders including schizophrenia and bipolar disorder. These manifestations seem to be related to certain genes located in the hemideleted region such as the proline dehydrogenase (PRODH) and the catechol-o-methyltransferase (COMT) genes. We describe a teenager who started his adolescent psychiatric care presenting cognitive impairment, irritable mood and aggressive behaviour with schizophrenia-like symptoms that scored 153 in the Positive and Negative Symptoms Scale (PANSS) assessment...
February 12, 2017: Brain & Development
https://www.readbyqxmd.com/read/28173146/vitamin-b12-ameliorates-the-phenotype-of-a-mouse-model-of-digeorge-syndrome
#5
Gabriella Lania, Alberto Bresciani, Monica Bisbocci, Alessandra Francone, Vincenza Colonna, Sergio Altamura, Antonio Baldini
No abstract text is available yet for this article.
October 15, 2016: Human Molecular Genetics
https://www.readbyqxmd.com/read/28163524/afebrile-seizures-as-initial-symptom-of-hypocalcemia-secondary-to-hypoparathyroidism
#6
Anastasia Gkampeta, Eftyxia Kouma, Anastasia Touliopoulou, Efstathios Aggelopoulos, Eleni Vourti
Hypocalcemia is rare in childhood and caused, among other conditions, by hypoparathyroidism. DiGeorge syndrome is the most common cause of hypoparathyroidism in childhood. Presentation of a rare cause of hypocalcemia in childhood and the necessity of measuring serum electrolyte levels in patients presenting with afebrile seizures. a 7.5-year-old female child presented with afebrile seizures lasting 5 min with postictal drowsiness. A similar episode 1 month ago is described. On admission, a positive Trousseau sign, papilledema, and long QTc on electrocardiography were detected...
December 2016: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28163308/genetics-genetic-and-functional-studies-reveal-genetic-drivers-of-renal-disease-in-digeorge-syndrome
#7
Susan J Allison
No abstract text is available yet for this article.
February 6, 2017: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/28123330/the-plethora-clinical-manifestations-and-treatment-options-of-autoimmunity-in-patients-with-primary-immunodeficiency
#8
Hatice Ezgi Barış, Ayça Kıykım, Ercan Nain, Ahmet Oğuzhan Özen, Elif Karakoç-Aydıner, Safa Barış
AIM: Although the association between primary immunodeficiency and autoimmunity is already well-known, it has once again become a topic of debate with the discovery of newly-defined immunodeficiencies. Thus, investigation of the mechanisms of development of autoimmunity in primary immunodefficiency and new target-specific therapeutic options has come to the fore. In this study, we aimed to examine the clinical findings of autoimmunity, autoimmunity varieties, and treatment responses in patients who were genetically diagnosed as having primary immunodeficiency...
December 2016: Türk Pediatri Arşivi
https://www.readbyqxmd.com/read/28121514/genetic-drivers-of-kidney-defects-in-the-digeorge-syndrome
#9
Esther Lopez-Rivera, Yangfan P Liu, Miguel Verbitsky, Blair R Anderson, Valentina P Capone, Edgar A Otto, Zhonghai Yan, Adele Mitrotti, Jeremiah Martino, Nicholas J Steers, David A Fasel, Katarina Vukojevic, Rong Deng, Silvia E Racedo, Qingxue Liu, Max Werth, Rik Westland, Asaf Vivante, Gabriel S Makar, Monica Bodria, Matthew G Sampson, Christopher E Gillies, Virginia Vega-Warner, Mariarosa Maiorana, Donald S Petrey, Barry Honig, Vladimir J Lozanovski, Rémi Salomon, Laurence Heidet, Wassila Carpentier, Dominique Gaillard, Alba Carrea, Loreto Gesualdo, Daniele Cusi, Claudia Izzi, Francesco Scolari, Joanna A E van Wijk, Adela Arapovic, Mirna Saraga-Babic, Marijan Saraga, Nenad Kunac, Ali Samii, Donna M McDonald-McGinn, Terrence B Crowley, Elaine H Zackai, Dorota Drozdz, Monika Miklaszewska, Marcin Tkaczyk, Przemyslaw Sikora, Maria Szczepanska, Malgorzata Mizerska-Wasiak, Grazyna Krzemien, Agnieszka Szmigielska, Marcin Zaniew, John M Darlow, Prem Puri, David Barton, Emilio Casolari, Susan L Furth, Bradley A Warady, Zoran Gucev, Hakon Hakonarson, Hana Flogelova, Velibor Tasic, Anna Latos-Bielenska, Anna Materna-Kiryluk, Landino Allegri, Craig S Wong, Iain A Drummond, Vivette D'Agati, Akira Imamoto, Jonathan M Barasch, Friedhelm Hildebrandt, Krzysztof Kiryluk, Richard P Lifton, Bernice E Morrow, Cecile Jeanpierre, Virginia E Papaioannou, Gian Marco Ghiggeri, Ali G Gharavi, Nicholas Katsanis, Simone Sanna-Cherchi
Background The DiGeorge syndrome, the most common of the microdeletion syndromes, affects multiple organs, including the heart, the nervous system, and the kidney. It is caused by deletions on chromosome 22q11.2; the genetic driver of the kidney defects is unknown. Methods We conducted a genomewide search for structural variants in two cohorts: 2080 patients with congenital kidney and urinary tract anomalies and 22,094 controls. We performed exome and targeted resequencing in samples obtained from 586 additional patients with congenital kidney anomalies...
February 23, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28104803/microrna-processing-enzymes-are-essential-for-survival-and-function-of-mature-retinal-pigmented-epithelial-cells-in-mice
#10
Thomas R Sundermeier, Sanae Sakami, Bhubanananda Sahu, Scott J Howell, Songqi Gao, Zhiqian Dong, Marcin Golczak, Akiko Maeda, Krzysztof Palczewski
Age-related macular degeneration (AMD) is a major cause of irreversible vision loss. The neovascular or "wet" form of AMD can be treated to varying degrees with anti-angiogenic drugs, but geographic atrophy (GA) is an advanced stage of the more prevalent "dry" form of AMD for which there is no effective treatment. Development of GA has been linked to loss of the microRNA (miRNA)-processing enzyme DICER1 in the mature retinal pigmented epithelium (RPE). This loss results in the accumulation of toxic transcripts of Alu transposable elements, which activate the NLRP3 inflammasome and additional downstream pathways that compromise the integrity and function of the RPE...
February 24, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28059126/an-exploratory-study-of-predisposing-genetic-factors-for-digeorge-velocardiofacial-syndrome
#11
Laia Vergés, Francesca Vidal, Esther Geán, Alexandra Alemany-Schmidt, Maria Oliver-Bonet, Joan Blanco
DiGeorge/velocardiofacial syndrome (DGS/VCFS) is a disorder caused by a 22q11.2 deletion mediated by non-allelic homologous recombination (NAHR) between low-copy repeats (LCRs). We have evaluated the role of LCR22 genomic architecture and PRDM9 variants as DGS/VCFS predisposing factors. We applied FISH using fosmid probes on chromatin fibers to analyze the number of tandem repeat blocks in LCR22 in two DGS/VCFS fathers-of-origin with proven 22q11.2 NAHR susceptibility. Results revealed copy number variations (CNVs) of L9 and K3 fosmids in these individuals compared to controls...
January 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28043468/outcomes-of-truncus-arteriosus-repair-in-children-35-years-of-experience-from-a-single-institution
#12
Phillip S Naimo, Tyson A Fricke, Matthew S Yong, Yves d'Udekem, Andrew Kelly, Dorothy J Radford, Andrew Bullock, Robert G Weintraub, Christian P Brizard, Igor E Konstantinov
We evaluated the long-term outcomes following repair of truncus arteriosus (TA) from a single institution. We conducted a retrospective review of children (n = 171) who underwent TA repair between 1979 and 2014. Early mortality rate was 11.7% (20/171). There were 19 late deaths. Most deaths (74%, 29/39) occurred within the first year following surgery. The 1-year mortality rate in 1979-2004 was 18% (25/136) and decreased to 11% (4/35) in 2005-2014. The overall survival rate was 73.6% at 30 years. Multivariate analysis identified postoperative extracorporeal membrane oxygenation (P = 0...
July 2016: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28018696/alagille-syndrome-a-case-report-highlighting-dysmorphic-facies-chronic-illness-and-depression
#13
James J Bresnahan, Zachary A Winthrop, Rabia Salman, Salman Majeed
Alagille syndrome is a rare multisystem disorder affecting the liver, heart, vertebrae, eyes, and face. Alagille syndrome shares multiple phenotypic variants of other congenital or chronic childhood illnesses such as DiGeorge syndrome, Down syndrome, spina bifida, type 1 diabetes mellitus, and cystic fibrosis. All of these chronic illnesses have well-established links to psychiatric conditions. There are few community resources for Alagille patients, as it is an extremely rare condition. Despite the overlap with other chronic childhood illnesses, the psychiatric manifestations of Alagille syndrome have not been previously discussed in literature...
2016: Case Reports in Psychiatry
https://www.readbyqxmd.com/read/27987519/-autoimmune-disorder-secondary-to-digeorge-syndrome-a-long-term-follow-up-case-report-and-literature-review
#14
Y Xie, J Q Guo, Y Hua, W H Zhao, Q Sun, X T Lu
DiGeorge syndrome is the most common chromosome microdeletion disease. The classical complications include congenital heart disease, hypothyroidism, immunodeficiency, facial abnormalities, and hypocalcemia. According to whether there is an absence or hypoplasia of the thymus, DiGeorge syndrome can be divided into two types, complete DiGeorge syndrome and partial DiGeorge syndrome. The patient was a female born with congenital heart disease, facial abnormalities and cleft palate. When the patient went to school, she had learning difficulty and had problems in communication and personal social behavior...
December 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27957375/cardiovascular-malformations-in-charge-syndrome-with-digeorge-phenotype-two-case-reports
#15
Kazushi Yasuda, Eiji Morihana, Naoki Fusazaki, Shiro Ishikawa
Both CHARGE syndrome and DiGeorge anomaly are frequently accompanied by cardiovascular malformations. Some specific cardiovascular malformations such as interrupted aortic arch type B and truncus arteriosus are frequently associated with 22q11.2 deletion syndrome, while conotruncal defects and atrioventricular septal defects are overrepresented in patients with CHARGE syndrome. CHD7 gene mutation is identified in approximately two-thirds of patients with CHARGE syndrome, and chromosomal microdeletion at 22q11...
2016: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/27956721/otologic-and-audiologic-outcomes-in-pediatric-patients-with-velo-cardio-facial-22q11-deletion-syndrome
#16
Forest W Weir, Sarah A Wallace, David R White, Jonathan L Hatch, Shaun A Nguyen, Ted A Meyer
OBJECTIVE: The focus of this study was to evaluate the prevalence, type, and severity of hearing impairment in patients with velo-cardio-facial syndrome (VCFS) and to compare these characteristics with patient demographics and other otologic factors. STUDY DESIGN: Retrospective analysis of the AudGen Database. SETTING: Tertiary academic referral center. PATIENTS: Pediatric patients in AudGenDB with a diagnosis of velo-cardio-facial syndrome or DiGeorge syndrome...
January 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/27873105/newborn-screening-for-severe-primary-immunodeficiency-diseases-in-sweden-a-2-year-pilot-trec-and-krec-screening-study
#17
Michela Barbaro, Annika Ohlsson, Stephan Borte, Susanne Jonsson, Rolf H Zetterström, Jovanka King, Jacek Winiarski, Ulrika von Döbeln, Lennart Hammarström
Newborn screening for severe primary immunodeficiencies (PID), characterized by T and/or B cell lymphopenia, was carried out in a pilot program in the Stockholm County, Sweden, over a 2-year period, encompassing 58,834 children. T cell receptor excision circles (TREC) and kappa-deleting recombination excision circles (KREC) were measured simultaneously using a quantitative PCR-based method on DNA extracted from dried blood spots (DBS), with beta-actin serving as a quality control for DNA quantity. Diagnostic cutoff levels enabling identification of newborns with milder and reversible T and/or B cell lymphopenia were also evaluated...
January 2017: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/27858403/cardiac-rehabilitation-in-an-adolescent-with-digeorge-syndrome-a-case-report
#18
Dong J Kim, Ka Y Lee, Yuri Choe, Jae Y Han, In S Choi
BACKGROUND: Digeorge syndrome is a rare disease that has variable clinical symptoms resulting from 22q11 deletions, included cardiac abnormality, abnormal face and thymic aplasia, and cognitive impairment. There was a no reports regarding the efficiency of cardiac rehabilitation (CR) in patients with Digeorge syndrome with tetralogy of fallot. CASE REPORT: A 15-year-old girl with DGS visited our CR center. The patient carried out the exercise training 3 times a week for 6 weeks, using a treadmill with electrocardiogram monitoring...
November 18, 2016: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27822729/-diagnosis-of-22q11-2-deletion-syndrome-in-the-context-of-newly-developed-psychosis
#19
Alexander Kaltenboeck, Fabian Friedrich, Barbara Hinterbuchinger, Zsuzsa Litvan, Nilufar Mossaheb
22q11.2 deletion syndrome (clinically also known as velocardiofacial or DiGeorge syndrome) is the most common human microdeletion syndrome and can be associated with a multitude of clinical features. In this article we report the case of a 22-year-old patient from Austria who was diagnosed with previously unknown 22q11.2 deletion syndrome in the context of newly developed psychosis. Using this case as an example, we then discuss the implications of 22q11.2 deletion syndrome for clinical psychiatric practice...
December 2016: Neuropsychiatrie: Klinik, Diagnostik, Therapie und Rehabilitation
https://www.readbyqxmd.com/read/27792854/camptodactyly-and-the-22q11-2-deletion-syndrome
#20
Natario L Couser, Chetna K Pande, Jonathan M Walsh, James Tepperberg, Arthur S Aylsworth
We describe a 5-day-old male with minor facial anomalies, a congenital laryngeal web, severe laryngomalacia, and prominent fixed flexion of the proximal interphalangeal joints of digits 2 through 5 bilaterally. A whole genome SNP microarray analysis identified a 2.55 Mb interstitial deletion of 22q11.21, typical of that seen in the DiGeorge and Velocardiofacial syndromes. A review of the literature identifies 10 other cases with camptodactyly. Camptodactyly appears to be an associated but rarely reported anomaly in patients with the 22q11...
February 2017: American Journal of Medical Genetics. Part A
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