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Childhood Dementia Explained by Synaptic Dysfunction, Opens New Therapies

Published

2 weeks ago

April 8, 2026

In a new study published in Nature Communications titled, “Modelling synaptic dysfunction in childhood dementia using human iPSC-derived cortical networks,” researchers from Flinders University in Adelaide have uncovered how hyperactive and dysregulated synaptic circuits emerge in the brain tissue of children impacted by Sanfilippo syndrome, a common form of childhood dementia.

In Australia, an estimated 1400 children currently live with childhood dementia, with hundreds of thousands of cases worldwide. Sanfilippo syndrome is a rare genetic condition that causes fatal brain damage. Children typically reach early developmental milestones before rapidly losing cognitive skills, speech, and mobility. Early symptoms often include hyperactivity and sleep disturbance.

Alterations in synaptic communication play key roles in neurodegenerative disease progression and cognitive decline. Yet few studies have explored how excitation and inhibition synaptic imbalances contribute to pediatric neurodegenerative disorders.

Cedric Bardy, PhD, professor and head of the Laboratory for Human Neurophysiology and Genetics at the South Australian Health, describes the study findings as “significant progress.” Chronic overactivity in the brain appears to be a fundamental mechanism contributing to cognitive deterioration in children with Sanfilippo syndrome.

Using human stem cell-derived cortical neurons and electrophysiology, the team demonstrated that excitatory synapses in the neurons of affected children become abnormally active during early brain development.

While these neurons initially developed and functioned normally, they became increasingly overactive over time. Brain cell networks showed bursts of intense, highly synchronized electrical activity as they matured, mirroring the hyperactivity and neurological symptoms seen in children with the condition.

“This hyperactivity offers a clear biological explanation for early behavioral changes, and it brings us closer to understanding the complex mechanisms contributing to childhood dementia,” said Bardy.

Results also demonstrated that these neurons are vulnerable to stress. When exposed to mild nutrient deprivation, excitatory synaptic abnormalities increased, suggesting that common illnesses or physiological stressors may accelerate neurological decline.

“Our research shows that disrupted synaptic communication is not simply a byproduct of degeneration. It is an early driver of the disease,” Bardy says.

Childhood Dementia Initiative CEO and founder, Megan Maack, is a co-author of the study and has been involved in guiding the project since its inception.

“This research is significant not just for Sanfilippo syndrome, but for the field of childhood dementia as a whole,” said Maack. “By identifying the precise cellular mechanisms driving the disease, we are moving towards a personalized medicine approach—the kind of targeted treatment strategy that has transformed outcomes for children with cancer.”

Researchers are now evaluating whether drugs that are already on the market for use in other conditions could be repurposed for childhood dementia. Bardy says the team has already demonstrated that these synaptic imbalances can be corrected with certain medications in the laboratory, indicating that they represent a genuine therapeutic target.

The post Childhood Dementia Explained by Synaptic Dysfunction, Opens New Therapies appeared first on GEN – Genetic Engineering and Biotechnology News.

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As Duchenne innovation booms, let’s ensure it becomes real progress

Published

60 minutes ago

April 21, 2026

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At Sarepta Therapeutics, we’ve seen it all. Here are the questions I believe we should be asking to move forward in Duchenne muscular dystrophy.

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CleanAssure Launched as an ISO Class 5 Controlled Cleanroom for Sterile Single-Use Assemblies

Published

2 hours ago

April 21, 2026

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Freudenberg Medical, a Kaiserslautern, Germany-based contract design manufacturing partner, launched CleanAssure, a new ISO Class 5 controlled cleanroom designed to deliver clean and sterile single-use assemblies for biopharmaceutical customers, according to the company.

Freudenberg Medical manufactures silicone and thermoplastic elastomer (TPE) tubing for bioprocessing and critical fluid transfer. The company specializes in seamless, overmolded single-use assemblies used in vaccine production, cell cultivation, fluid transfer, and fill-finish operations.

The controlled cleanroom enables customers to receive ready-to-use washed, dried, and gamma sterilized single-use assemblies with the highest product quality, sterility, and process consistency, noted Rudi Gall, vp, global pharma, Freudenberg Medical.

“CleanAssure allows us to support our customers beyond component manufacturing,” he said. “By integrating controlled cleaning and sterilization into our single-use assembly services, we help reduce contamination risk, streamline validation activities, and support a reliable supply for our customers. We can now support customers with their entire component value chain and allow them to focus on their core manufacturing capability.”

Freudenberg’s cleaning process uses ultrapure water and air, operating within ISO 5 conditions. The water is produced using a multi-stage filtration process, resulting in high-purity water specifically suitable for pharmaceutical applications.

Key biopharma industry challenges

Biopharmaceutical manufacturers increasingly rely on single-use systems but face ongoing challenges related to cleaning validation, contamination risk, and production downtime. Customer-managed cleaning processes are often time-intensive, costly, and require additional resources while directly impacting supply reliability, according to Gall.

The company explained that its controlled cleaning environment addresses these challenges by reducing cross-contamination risk through tightly controlled ISO Class 5 processing; alleviating customer cleaning validation burden by delivering assemblies washed and sterilized under cGMP, validated conditions; minimizing production downtime by removing cleaning as a process step; and supporting a consistent, reliable supply of high-quality single-use assemblies.

Freudenberg will be attending INTERPHEX New York, April 21–23, Booth 1673, to exhibit its new products and services.

The post CleanAssure Launched as an ISO Class 5 Controlled Cleanroom for Sterile Single-Use Assemblies appeared first on GEN – Genetic Engineering and Biotechnology News.

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STAT+: At AACR, a provocative use of CAR-T, Merck’s new thing and cancer’s geography problem

You’re reading the web version of STAT’s popup newsletter, AACR in 30 seconds, your guide to what’s happening at the American Association of Cancer Researchers’ annual meeting. Sign up here.

We’re back with more data from the AACR meeting! Among the highlights today: a first look at a drug Merck acquired from China, a fascinating but potentially controversial use for CAR-T, and American oncology’s geography problem. Don’t forget: Tuesday night we will host a live event in San Diego, and we also have a virtual recap of the AACR conference on Thursday.

CAR-T shows deep response in smoldering myeloma

In an early phase trial, investigators at Dana-Farber Cancer Institute treated 20 high risk smoldering multiple myeloma patients with Carvykti, a BCMA directed CAR-T therapy. The idea was to use the immunotherapy on patients with the multiple myeloma precursor condition, hoping to prevent the active cancer in patients at high risk of progression.

Continue to STAT+ to read the full story…

Published

7 hours ago

April 20, 2026

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