New research published! 📚
In his recent paper in Nature Neuroscience, ARMGO's founder, Andrew R. Marks, MD, and his team at Columbia University, NY demonstrated the role of Ryanodine Receptor 2 (RyR2) in the development of #heartfailure-induced #cognitive dysfunction. In the process they confirmed that heart failure is a systemic disease involving the brain as well.
Cognitive dysfunction is seen in as many as 90% of heart failure patients, who experience a range of symptoms including forgetfulness and difficulty learning. As well as impacting quality of life, cognitive dysfunction has a significant impact on an individual's ability to self-care, follow treatment regimens and notice changes in symptoms.
The team's #research concluded that RyR2, an intracellular calcium release channel within hippocampal neurons, is subject to post-translational modifications (PTM) in individuals with heart failure. PTMs occured as a result of increased adrenergic signalling and activation of the transforming growth factor-beta pathway. As a consequence neuronal RyR2 became leaky along with modified cardiac RyR2. In a mouse model of heart failure the neuronal calcium leak induced protein expression changes that lead to cognitive dysfunction.
Treatment with a brain penetrant Rycal® drug was able to restore normal calcium handling in mouse neurons and to eliviate cardiogenic dementia effects in mice.
The landmark paper sheds a new light on heart failure-induced cognitive dysfunction and the causal role of RyR2-related intracellular calcium signalling in the brain. These findings expand the role of RyR2 in heart failure beyond its established cardiac effects.
Want to find out more? Read the full paper here: https://rb.gy/8qb5c
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2wGreat work Katie and team!!