Enhancing NMDA Receptor Signaling to Treat Fragile X Syndrome

Enhancing NMDA Receptor Signaling to Treat Fragile X Syndrome

Dr. Stephanie Barnes has been investigating the role of NMDA receptors as a FRAXA Postdoctoral Fellow in Dr. Emily Osterweil’s laboratory at the University of Edinburgh from 2016-2018. With an additional year grant from FRAXA, she is now continuing her work to identify novel targets and test pharmacological therapies in the Fragile X mouse model at the Picower Institute at MIT with Dr. Mark Bear.

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Enhancement of NMDA Receptor Signaling for the Treatment of Fragile X Syndrome

Enhancement of NMDA Receptor Signaling for the Treatment of Fragile X Syndrome

FRAXA Research Foundation funded a 2016-2017 Fellowship for Dr. Stephanie Barnes in the University of Edinburgh lab of Dr. Emily Osterweil. With this $90,000 award, the team is investigating NMDA signaling in fragile X syndrome mice.

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Fragile X Cure One Step Closer with FRAXA Support of $1 Million in New Research

Fragile X Cure One Step Closer with FRAXA Support of $1 Million in New Research
4 Countries – 10 Teams – $1 Million From finding new treatment targets, to pinpointing outcome measures for future clinical trials, to attempting to reactivate the gene which is silenced in Fragile X syndrome, these innovative scientists will bring us closer to a cure. Improving Clinical Trials Many parents of children with Fragile X know well the struggles of getting their children to sleep through the night. Mice and fruit flies engineered to mimic Fragile X Syndrome also have disrupted sleep. Drs. Westmark and Smith will test potential therapeutics in mice using sleep as an outcome measure and investigate whether sleep could be used as an outcome measure for future clinical trials. The search is on for a simple blood test to measure how well a treatment works for an individual with Fragile X. Dr. Frank Kooy's team investigates. Testing Treatment Targets One of the goals of FRAXA’s research program has been to find biological pathwaysRead more

Seizures in Fragile X Syndrome and Therapeutic Potential of NMDA Receptor Antagonists

Seizures in Fragile X Syndrome and Therapeutic Potential of NMDA Receptor Antagonists
With a $90,000 grant from the FRAXA Research Foundation, Dr. Robert Wong is investigating how seizures are generated in Fragile X neurons. More generally, he is looking at how synapses are modified to enable learning and memory and how this process is impaired in Fragile X. $90,000 Grant Robert Wong, PhD Principal Investigator State University of New York 2013-2014 FRAXA Research Grant $90,000 over 2 Years Abnormal increases in sensitivity of a type of glutamate receptor (group I mGluR) cause brain malfunction, including epilepsy, in Fragile X syndrome (FXS). We are examining a newly uncovered regulation of this increased group I mGluR sensitivity by a second type of glutamate receptor, the NMDA receptor. By looking at audiogenic seizures in FXS model mice, NMDA receptor blockers were found to robustly suppress these seizures at the young developmental stage. In contrast, the same antagonists activated seizure activities, normally dormant, in adult FXS model mice and in a CGGRead more

Social Behavior as an Outcome Measure for Fragile X Clinical Trials

Social Behavior as an Outcome Measure for Fragile X Clinical Trials

One of the features of the Fragile X mouse model which is relevant to the human Fragile X syndrome (and autism) is social behavior. Several tests show consistent social behavioral abnormalities in the Fragile X mouse model. With a $140,000 grant from FRAXA Research Foundation in 2012-2013, Dr. Willemsen at Erasmus University used social behavior tests to measure the effectiveness of several drug strategies.

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