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Clinical genetics news

Children with rare debilitating brain diseases suffer from mutations in a little-known protein complex

Thousands of times per year, a family's moment of joy turns to unexpected grief. A seemingly healthy infant stops smiling or making eye contact. Their limbs grow weak. The tiny child suffers seizures and breathing problems.

How a tiny cell structure may shape brain development and drive disease

A largely overlooked structure inside our cells may play a crucial role in how the brain forms, offering new insight into developmental disorders and potential therapies.

What lies behind hereditary heart rhythm disorders

Short QT syndrome is a genetic disease that leads to sudden cardiac death at a young age. Mutations in the SLC4A3 gene, which regulates bicarbonate-chloride exchange, were recently described as a potential cause. An international ...

How does mitochondrial DNA influence human health?

Some of your most important life partners are the mitochondria that power all your cells. You and these little cellular powerhouses are in a 1.5-billion-year-old evolutionary relationship—but mitochondria brought some baggage. ...

Study identifies genetic drivers of resistant hypertension

Cedars-Sinai investigators have identified distinct genetic variants associated with resistant hypertension, a type of high blood pressure that remains uncontrolled despite medication. Their findings, published in the journal ...

Rare MGRN1 gene variant tied to fetal heart malformations

The Human Genetics Research Group of the University of Tartu Faculty of Medicine has identified a gene whose defect may cause congenital heart malformations in the fetus. The MGRN1 gene has not previously been associated ...

Scalable sensors lower the cost of studying genetic disorders

Researchers have demonstrated a new class of low-cost, scalable sensors that can be used to monitor electrical activity in human cerebral organoids. Because electrical signals are key to understanding brain function, this ...

Probing a paradoxical drug response for irregular heartbeat

Irregular heartbeat, or arrhythmia, can be treated with various procedures or medication, but not all medications work for all patients. In fact, one arrhythmia medication can actually cause arrhythmia in people with a common ...