Results 41 to 50 of about 3,802 (188)

Psychiatric disorders among women with the fragile X premutation without children affected by fragile X syndrome. [PDF]

open access: yesAm J Med Genet B Neuropsychiatr Genet, 2016
Several studies have demonstrated increased rates of anxiety and depressive disorders among female carriers of the fragile X premutation. However, the majority of these studies focused on mothers of children with fragile X syndrome, who experience higher
Gossett A   +8 more
europepmc   +2 more sources

Phenotypes of hypofrontality in older female fragile X premutation carriers [PDF]

open access: yes, 2013
OBJECTIVE: To investigate the nature of cognitive impairments and underlying brain mechanisms in older female fragile X premutation carriers with and without fragile X-associated tremor/ataxia syndrome (FXTAS).
Randi J. Hagerman   +21 more
core   +1 more source

Spontaneous Coronary Artery Dissection in Females With the Fragile X FMR1 Premutation

open access: yesJACC: Case Reports, 2020
This paper reports 2 cases of female carriers of the FMR1 premutation for developing spontaneous coronary artery dissection (SCAD). These women had classical presentations of premutation symptoms, including anxiety, depression, and connective tissue ...
Forrest J. McKenzie, BS   +4 more
doaj   +1 more source

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   +1 more source

Investigation of amygdala volume in men with the fragile X premutation [PDF]

open access: yesBrain Imaging and Behavior, 2011
Premutation fragile X carriers have a CGG repeat expansion (55 to 200 repeats) in the promoter region of the fragile X mental retardation 1 (FMR1) gene. Amygdala dysfunction has been observed in premutation symptomatology, and recent research has suggested the amygdala as an area susceptible to the molecular effects of the premutation.
Diana, Selmeczy   +10 more
openaire   +2 more sources

Manifestaciones neurológicas en el adulto con premutación X frágil

open access: yesNeurología, 2010
Resumen: Introducción: El síndrome X frágil es una forma de retraso mental heredado. Es consecuencia de una expansión anormal del número de repeticiones del trinucleótido CGG.
J. Cabanyes-Truffino
doaj   +1 more source

Fragile X and autism: Intertwined at the molecular level leading to targeted treatments

open access: yesMolecular Autism, 2010
Fragile X syndrome (FXS) is caused by an expanded CGG repeat (> 200 repeats) in the 5' untranslated portion of the fragile mental retardation 1 gene (FMR1), leading to deficiency or absence of the FMR1 protein (FMRP).
Hagerman Randi, Hoem Gry, Hagerman Paul
doaj   +1 more source

Repeat-mediated epigenetic dysregulation of the FMR1 gene in the Fragile X-related disorders

open access: yesFrontiers in Genetics, 2015
The Fragile X-related disorders are members of the Repeat Expansion Diseases, a group of genetic conditions resulting from an expansion in the size of a tandem repeat tract at a specific genetic locus.
Karen eUsdin, Daman eKumari
doaj   +1 more source

Fragile X Premutations Are Not a Major Cause of Early Menopause [PDF]

open access: yesThe American Journal of Human Genetics, 1997
Fragile X syndrome is an X-linked mental retardation condition that usually is due to a trinucleotide-repeat expansion in the FMR1 gene. Whereas full-mutation alleles (> 230 repeats) lead to fragile X syndrome, premutation alleles (approximately 60-200 repeats) are apparently non-penetrant.
Kenneson, Aileen   +2 more
openaire   +2 more sources

MicroRNA-277 modulates the neurodegeneration caused by Fragile X premutation rCGG repeats. [PDF]

open access: yesPLoS Genetics, 2012
Fragile X-associated tremor/ataxia syndrome (FXTAS), a late-onset neurodegenerative disorder, has been recognized in older male fragile X premutation carriers and is uncoupled from fragile X syndrome.
Huiping Tan   +4 more
doaj   +1 more source

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