Results 11 to 20 of about 8,344 (152)

Insight and Recommendations for Fragile X-Premutation-Associated Conditions from the Fifth International Conference on FMR1 Premutation [PDF]

open access: yesCells, 2023
The premutation of the fragile X messenger ribonucleoprotein 1 (FMR1) gene is characterized by an expansion of the CGG trinucleotide repeats (55 to 200 CGGs) in the 5’ untranslated region and increased levels of FMR1 mRNA. Molecular mechanisms leading to
Flora Tassone   +45 more
doaj   +4 more sources

Reduced vagal tone in women with the FMR1 premutation is associated with FMR1 mRNA but not depression or anxiety [PDF]

open access: yesJournal of Neurodevelopmental Disorders, 2017
Background Autonomic dysfunction is implicated in a range of psychological conditions, including depression and anxiety. The fragile X mental retardation-1 (FMR1) premutation is a common genetic mutation that affects ~1:150 women and is associated with ...
Jessica Klusek   +5 more
doaj   +2 more sources

Altered sensitivity to social gaze in the FMR1 premutation and pragmatic language competence [PDF]

open access: yesJournal of Neurodevelopmental Disorders, 2017
Background The FMR1 premutation affects 1:291 women and is associated with a range of cognitive, affective, and physical health complications, including deficits in pragmatic language (i.e., social language). This study investigated attention to eye gaze
Jessica Klusek   +4 more
doaj   +2 more sources

Prevalence of cytogenetic abnormalities and FMR1 gene premutation in a Portuguese population with premature ovarian insufficiency [PDF]

open access: yesActa Médica Portuguesa, 2021
Introduction: Chromosome abnormalities contribute to about 10% of cases of premature ovarian insufficiency. Most are associated with X chromosome. Fragile mental retardation 1 (FMR1) gene premutation has an estimated prevalence of 1% - 7% in sporadic ...
Ana Raquel Neves   +9 more
doaj   +12 more sources

Sensory Difficulties in Children With an FMR1 Premutation

open access: yesFrontiers in Genetics, 2018
Abnormal sensory processing is one of the core characteristics of the fragile X phenotype. Studies of young children with fragile X syndrome (FXS) and the FMR1 premutation have shown sensory challenges as early as infancy and into early childhood.
Melissa Raspa   +7 more
doaj   +2 more sources

Elevated levels of FMR1 mRNA in granulosa cells are associated with low ovarian reserve in FMR1 premutation carriers.

open access: yesPLoS ONE, 2014
AimTo assess the role of mRNA accumulation in granulosa cells as the cause of low ovarian response among FMR1 premutation carriers undergoing pre-implantation genetic diagnosis (PGD).DesignCase control study in an academic IVF unit.
Shai E Elizur   +7 more
doaj   +2 more sources

Relationship Between Neurologic Symptoms and Signs and FMR1 Genotype in Premutation Carriers

open access: yesAnnals of Clinical and Translational Neurology
Background and Objectives Fragile X‐associated Tremor/Ataxia Syndrome (FXTAS) is the most severe late‐onset condition caused by a premutation in the FMR1 gene, characterized by expanded CGG triplet repeats of 55–200.
Flora Tassone   +8 more
doaj   +2 more sources

Language use predicts symptoms of fragile X-associated tremor/ataxia syndrome in men and women with the FMR1 premutation [PDF]

open access: yesScientific Reports
Fragile X-associated tremor/ataxia syndrome (FXTAS) is an age-related neurodegenerative disorder caused by a premutation of the FMR1 gene on the X chromosome.
Nell Maltman   +3 more
doaj   +2 more sources

FXTAS and the Spectrum of FMR1 Premutation-Associated Phenotypes in Latin America: A Scoping Review. [PDF]

open access: yesMov Disord Clin Pract
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 ...
Schmidmajer A   +6 more
europepmc   +2 more sources

Interaction of FXTAS Family History and College Degree Attainment Predicts Trajectories of Cognitive and Motor Symptoms in FMR1 Premutation Carrier Women. [PDF]

open access: yesAm J Med Genet B Neuropsychiatr Genet
ABSTRACT The present longitudinal study focuses on FMR1 premutation carrier women during midlife and early old age (n = 115). Bringing together the genetic risk factor of a family history of FXTAS and the environmental protective factor of higher education, the goal of the study was to determine how these factors potentially interact to predict self ...
Hong J   +4 more
europepmc   +2 more sources

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