Results 61 to 70 of about 3,802 (188)

Fenótipos em portadoras brasileiras da pré-mutação da síndrome do X-Frágil [PDF]

, 2012
TCC(graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Biológicas. Biologia.A Síndrome do X-Frágil (SXF) é a forma mais comum de deficiência intelectual herdada.
Andrade, Daiane de
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Mouse models of the fragile X premutation and fragile X-associated tremor/ataxia syndrome [PDF]

Journal of Neurodevelopmental Disorders, 2014
Carriers of the fragile X premutation (FPM) have CGG trinucleotide repeat expansions of between 55 and 200 in the 5'-UTR of FMR1, compared to a CGG repeat length of between 5 and 54 for the general population. Carriers were once thought to be without symptoms, but it is now recognized that they can develop a variety of early neurological symptoms as ...
Berman, Robert F, Buijsen, Ronald AM, Usdin, Karen, Pintado, Elizabeth, Kooy, Frank, Pretto, Dalyir, Pessah, Isaac N, Nelson, David L, Zalewski, Zachary, Charlet-Bergeurand, Nicholas, Willemsen, Rob, Hukema, Renate K   +11 more
openaire   +4 more sources

FXTAS and the Spectrum of FMR1 Premutation‐Associated Phenotypes in Latin America: A Scoping Review

Movement Disorders Clinical Practice, EarlyView.
Abstract Background Fragile X–associated tremor/ataxia syndrome (FXTAS) is a late‐onset neurodegenerative disorder caused by FMR1 premutation expansions (55–200 CGG repeats). Although well described in populations of predominantly European ancestry, FXTAS remains poorly characterized in Latin America due to limited awareness, restricted access to ...
Amy Schmidmajer, Salomón Páez‐García, Santiago Martínez, Jacobo Ramírez‐Triana, Kevin O'Hara‐Veintimilla, Andrés Ricaurte‐Fajardo, Catalina Cerquera‐Cleves   +6 more
wiley   +1 more source

Autonomic Function in Fragile X Syndrome: A Systematic Review

Journal of Intellectual Disability Research, EarlyView.
ABSTRACT Background Fragile X syndrome (FXS) is a monogenic X‐linked cause of intellectual disability and autism. Individuals with FXS often have high levels of anxiety and sometimes display challenging behaviours. Autonomic dysfunction has been suggested to be one physiological mechanism that may contribute to these.
Sydni Weissgold, Sarah E. A. Eley, Damien Wright, Andrew G. McKechanie, Andrew C. Stanfield   +4 more
wiley   +1 more source

The role of AGG interruptions in the transcription of FMR1 premutation alleles.

PLoS ONE, 2011
Fragile X associated disorders are caused by a premutation allele in the fragile X mental retardation 1 gene (FMR1) and are hypothesized to result from the toxic effect of elevated levels of expanded FMR1 transcripts.
Carolyn M Yrigollen, Federica Tassone, Blythe Durbin-Johnson, Flora Tassone   +3 more
doaj   +1 more source

The Spectrum of Abnormal Tongue Movements: Review of Phenomenology, Etiology, and Differential Diagnosis

Movement Disorders Clinical Practice, Volume 13, Issue 6, Page 1383-1398, June 2026.
ABSTRACT Background Classifying abnormal tongue movements is challenging due to their varied presentations and limited visibility compared to other body parts. Accurate identification of the phenomenology guides physical examination and can point to specific diagnoses.
Nathaniel Bendahan, Seyed‐Mohammad Fereshtehnejad, Christos Ganos, Emily Swinkin, Anthony E. Lang   +4 more
wiley   +1 more source

Fragile X spectrum disorders [PDF]

, 2014
The fragile X mental retardation 1 gene (FMR1), which codes for the fragile X mental retardation 1 protein (FMRP), is located at Xp27.3. The normal allele of the FMR1 gene typically has 5 to 40 CGG repeats in the 5' untranslated region; abnormal alleles ...
Lozano, Reymundo, Hagerman, Randi J, Rosero, Carolina Alba   +2 more
core   +1 more source

Altered Redox Mitochondrial Biology in the Neurodegenerative Disorder Fragile X-Tremor/Ataxia Syndrome: Use of Antioxidants in Precision Medicine

Molecular Medicine, 2016
A 55–200 expansion of the CGG nucleotide repeat in the 5′-UTR of the fragile X mental retardation 1 gene (FMR1) is the hallmark of the triplet nucleotide disease known as the “premutation” as opposed to those with >200 repeats, known as the full mutation
Gyu Song, Eleonora Napoli, Sarah Wong, Randi Hagerman, Siming Liu, Flora Tassone, Cecilia Giulivi   +6 more
doaj   +1 more source

Carrier screening in the reproductive setting—Are there medical implications for the heterozygote?—A guide for clinicians

Pregnancy, Volume 2, Issue 3, May 2026.
Abstract Carrier screening for genetic conditions performed preconception or during pregnancy allows identification of fetal risk for inherited autosomal recessive and X‐linked conditions. The goal is to identify at‐risk patients/couples and offer them reproductive options such as preimplantation genetic diagnosis, prenatal testing, or targeted newborn
Emily B. Rosenfeld, Nicole Kasatkin, Bi Liu Yu, Milen Velinov, Justin S. Brandt, Elena Ashkinadze   +5 more
wiley   +1 more source

Avaliação de pré-mutação por PCR na síndrome do X frágil [PDF]

, 2006
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Química.A presente dissertação avalia o desempenho de uma nova metodologia de análise molecular pela reação em cadeia da ...
Queiroz, Mariana Arzua de
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