Steve Bryson, PhD,  science writer—

The European Commission has granted orphan drug designation to TSHA-102, an investigational gene therapy for the treatment of Rett syndrome. The designation encourages the development of medicines to diagnose, prevent, or treat life-threatening or debilitating diseases that affect fewer than five in 10,000 people living in the European…

Using a comparative genomics approach, researchers have identified three potential therapies for Rett syndrome that are being used or tested for other indications. “This study highlights the potential of comparative genomics to accelerate drug discovery, and yields potential new avenues for the treatment of [Rett],” the researchers wrote. …

Brain organoids grown from stem cells derived from people with Rett syndrome reproduced patterns of electrical brain activity that resembled seizures, a hallmark of the condition, a study demonstrated. Use of anti-seizure medications restored electrical activity to normal levels, supporting the use of brain organoid models to investigate underlying…

A first-generation university student has been awarded a six-year, $466,669 grant from the National Institutes of Health (NIH) to fund his doctoral and postdoctoral research into brain-derived neurotrophic factor (BDNF), a protein that plays a role in Rett syndrome. The Virginia Tech student, Raymundo Hernandez, called the NIH grant…

Treatment with a protein called CNF1 produced different results in two different mouse models of Rett syndrome, demonstrating a need to test therapeutic approaches across disease models, according to a study. Specifically, the CNF1 protein was able to rescue cognitive deficits, but not motor difficulties, in a mouse model…

The use of microRNA molecules that targeted a protein receptor important for nerve cell growth led to improved behaviors and motor function in a Rett syndrome mouse model, a study shows. These molecules were carried by tiny vesicles called exosomes, which were derived from human urinary stem cells. The…

A study suggests lower intake of dietary protein is associated with more severe growth deficits in Taiwanese children with Rett syndrome. While dystonia — uncontrolled movements due to muscle contractions — increased with age, it did not affect growth, the scientists…

People with Rett syndrome who grind their teeth during the day had a higher incidence of dental treatment, particularly restorations, than those who did not, an international database study reported.  The findings also showed that patients fed orally had more dental…

Due to the unprecedented challenges caused by the ongoing COVID-19 pandemic, GW Pharmaceutics has stopped the ARCH Phase 3 clinical trial evaluating the oral cannabidiol (CBD) solution Epidiolex in children and adolescents with Rett syndrome. The decision was made after evaluating the progress of…

Problems with skilled learning tasks that involve motor function and making sense of sounds — known to be affected by Rett syndrome — were seen in rat model of the disease and consistent with these deficits in patients, a study reported. These findings could support work into…