Steve Bryson, PhD, science writer —

Abnormal protein production associated with fragile X syndrome was coupled with altered cell growth that favored fast-growing cell types over those that become nerve cells during early development, a study has shown.  Blocking a signaling pathway known as PI3K corrected both excess protein production and…

An analysis of proteins in brain tissue from men with advanced fragile X-associated tremor/ataxia syndrome (FXTAS) found an overall decrease in the abundance of key proteins compared with samples from those without this disease, a study reported. These findings provide insight into mechanisms of FXTAS, and identified potential biomarkers…

Eye-tracking technology has identified atypical visual attention patterns in women who carry the FMR1 premutation, a condition related to fragile X syndrome, that occurs later in life, a study reported.  These findings imply that visual attention patterns…

Brain scans in men with fragile X syndrome showed reduced levels of the mGluR5 receptor — a protein receptor known to help regulate nerve cell communication — compared with healthy men, a pilot study found.  These findings may help explain the failure of…

School-aged girls with fragile X syndrome are less aware of bullying than children of the same age and intellectual abilities, a study suggests. These findings indicate that difficulties in interpreting social signals could place these girls in vulnerable situations. Developing socials skills…

Low levels of pro-inflammatory proteins in the blood suggest that inflammation is not a hallmark of fragile X syndrome, according to a new study. The findings also indicated that assessing the levels of 16 proteins may be useful for diagnosing, classifying, and monitoring fragile X progression.

Providing a fragment of the FMRP protein, which is missing in people with fragile X syndrome, eased hyperactivity and restored nerve cell communication in the brain, a study in a mouse model found. The study, “FMRP(1–297)-tat restores ion channel and synaptic function…

A tool to assess language, called expressive language sampling (ELS), found that people with fragile X syndrome have less complex speech, more disruptions in speech, greater talkativeness, and a lesser ability to be understood than those with typical development, a study…

Specific cognitive deficits in mothers of children with fragile X syndrome are significantly linked to their genetic profile and are worse in older age, a study has found. The study, “Inhibition deficits are modulated by age…

The expansion of DNA repeats in the FMR1 gene, which leads to fragile X syndrome, is independent of changes that stop production of the resulting FMRP protein, according to an analysis of a family with fragile X.  The study, “…