Results 31 to 40 of about 18,047 (247)

Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park, Eun‐Hyuk Choi, Jorge Otero‐Millan, David S. Zee, Jeong‐Yoon Choi, Ji‐Soo Kim   +5 more
wiley   +1 more source

High‐Resolution Genomic Characterization of WAGR Spectrum Disorder: Insights From a Novel Cohort and Literature Synthesis, and Validation of Patient‐Reported Data

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT WAGR spectrum disorder (WAGRSD) is an ultra‐rare congenital disorder caused by heterozygous deletion of chromosome 11p13. While classically associated with Wilms tumor, Aniridia, Genitourinary anomalies, and a Range of developmental delays, accurate delineation of the deletion is critical for prognosis because the phenotypic spectrum extends ...
Andrew M. George, Bamelak T. Duki, Zoe S. Katz, Aravind Viswanathan, Suzanne P. MacFarland, Evan R. Hathaway, Caitlin Monahan, John Morris, Kelly L. Trout, Shari M. Krantz, Arupa Ganguly, Jennifer M. Kalish   +11 more
wiley   +1 more source

Análise da influência do nistagmo espontâneo e pré-calórico na vectoeletronistagmografia Analysis of spontaneous and per caloric nistagmus and its influence in vectonystagmography

Revista CEFAC, 2009
OBJETIVO: verificar a ocorrência do nistagmo espontâneo / pré-calórico, sua direção, cálculo da velocidade angular média e real da componente lenta, sua influência quantitativa e qualitativa nas pro-vas calórica e rotatória em pacientes com sintomas ...
Gisiane Munaro, Pricila Sleifer, Fleming Salvador Pedroso   +2 more
doaj   +1 more source

Clinical, Behavioral and Neuroradiological Phenotype in an Italian Cohort of Patients With Xia Gibbs Syndrome: A Multicenter Cross‐Sectional Study and Systematic Literature Review

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Heterozygous variants in the AHDC1 gene are associated with Xia Gibbs Syndrome (XGS), a genetic disorder with a highly variable phenotype. Cognitive impairment, motor delay, language delay, neonatal hypotonia, and sleep apnea are considered “cardinal” signs of the disease.
Giulia Cinelli, Stefania Della Vecchia, Patrizia Bergonzini, Elisa Caramaschi, Elisabetta Spezia, Claudia Parenti, Simona Filomena Madeo, Laura Lucaccioni, Cavalleri Francesca, Marisa Pugliese, Federico Raviglione, Clara Colonna, Olga Calabrese, Ilaria Stanghellini, Maria Carmen Marongiu, Enrico Biagioni, Anna Rita Ferrari, Roberta Battini, Lorenzo Iughetti   +18 more
wiley   +1 more source

Characteristics and mechanisms of periodic alternating nystagmus

Chinese Journal of Contemporary Neurology and Neurosurgery, 2019
Periodic alternating nystagmus (PAN) is a rare, congenital or acquired spontaneous nystagmus. Understanding the characteristics and mechanism of different types of PAN contributes to the recognition of this disease and the level of diagnosis and ...
Fei LI, Gang-gang CHEN
doaj  

Defining Features of Gabriele‐de Vries Syndrome in Adults: A Case Report and Literature Review

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Gabriele‐de Vries syndrome (GADEVS) is a neurodevelopmental disorder caused by heterozygous pathogenic variants in the YY1 gene. Like most rare genetic syndromes, the adult manifestations of GADEVS remain poorly defined. Here, we describe the oldest patient reported to date with GADEVS—a 63‐year‐old woman with a c.1177_1179del YY1 variant ...
Ethan W. Hollingsworth, Changrui Xiao
wiley   +1 more source

Eletronistagmografia versus videonistagmografia Electronystagmography versus videonystagmography

Brazilian Journal of Otorhinolaryngology, 2010
A eletronistagmografia (ENG) e a videonistagmografia (VNG) são métodos de registro dos movimentos oculares, empregados na avaliação dos distúrbios do equilíbrio corporal.
Maurício Malavasi Ganança, Heloísa Helena Caovilla, Fernando Freitas Ganança   +2 more
doaj   +1 more source

Pathological and Non-pathological Irregularities of Nystagmus

Collegium antropologicum, 2015
Irregularities of nystagmus can be found almost in every electronystagmographic record, but only a few are pathological. In this investigation, the authors try to define the border line between pathological and nonpathological irregularities of nystagmus and according to this measure the diagnostic use of findings of irregularities of nystagmus.
Starčević, Radan, Velepič, Marko, Bonifačić, David   +2 more
openaire   +5 more sources

Streamlining Diagnosis of Bardet–Biedl Syndrome: New Diagnostic Algorithm With Updated Criteria

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Considerable advances have been made in our understanding of Bardet–Biedl syndrome (BBS), particularly in its core clinical features and molecular genetics, warranting an update to the existing diagnostic criteria framework. Using a rigorous, evidence‐based, and consensus‐driven process, a multidisciplinary group of international experts and ...
Jeremy J. Pomeroy, Jesse Richards, Brooke R. Sweeney, Seema Kumar, Katie E. Queen, Joshua Zaritsky, Carl H. Cramer, Elias I. Traboulsi, Brittni A. Scruggs, Erica E. Davis, Ekaterina Keifer, Emma McGibbon, Timothy Ogden, Bendert De Graaf, Tonia Hymers, Elizabeth Forsythe, Philip Beales   +16 more
wiley   +1 more source

De Novo 2.2 Mb 19q13.42–q13.43 Microdeletion Encompassing U2AF2: Support for a Haploinsufficiency Model

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT U2 small nuclear RNA auxiliary factor 2 (U2AF2) is an essential pre‐mRNA splicing factor involved in the early stages of pre‐mRNA splicing. To date, multiple individuals have been reported with predominantly heterozygous missense variants presenting intellectual disability, speech and motor delays, seizures, hypotonia, and thin or hypoplastic ...
Amanda Toledo, Sarah Araji, Weimin Bi, Seema R. Lalani   +3 more
wiley   +1 more source