Ryan Lab

Physical Chemistry of the Synapse

The focus of this lab is the study of the molecular basis of synaptic transmission in the mammalian brain. Our primary interests lie in understanding the molecular basis of synaptic performance. 

We use biophysical tools to examine  synapse function. These tools provide single synapse measurements of  exocytosis, endocytosis, action potential wave forms,  calcium fluxes as well as the concentration of key metabolites.  The brain is acutely sensitive to metabolic compromise. We showed recently that nerve terminals represent one of the key loci of this vulnerability (Cell 2014, Neuron 2020, Science Advances 2021).  These studies opened up several key questions the Ryan lab is currently pursuing about synaptic metabolism.  How much ATP do different  processes at synapses consume? What are the biochemical rules in play to synthesize ATP  in response to activity? What are the biochemical reasons synapses are so vulnerable? Do neurodegenerative diseases impact synaptic bioenergetics?

Interested in a position in the lab? Send an email to Tim Ryan (address on "People" page)

Lab in the news

• Lab Alumna Ghazal Ashrafi receives CZI Barres award https://chanzuckerberg.com/science/programs-resources/neurodegeneration-challenge/projects/metabolic-crosstalk-between-neurons-and-astrocytes-in-neurodegeneration/

• Lab Alumna Vidhya Rangaraju receives CZI Barres award https://mpfi.org/mpfi-researcher-awarded-1-2-million-from-chan-zuckerberg-initiative/

• Zhanat Koshenov named  2024 Simons Junior Fellow https://www.simonsfoundation.org/people/zhanat-koshenov/

• Tim elected to the National Academy of Science https://news.weill.cornell.edu/news/2024/05/dr-timothy-ryan-elected-to-national-academy-of-sciences

• Tim elected to the American Academy of Arts & Science https://news.cornell.edu/stories/2024/04/chen-ryan-wolfner-elected-arts-and-sciences-academy

• Tim on the Max Planck Florida Institute for Neuroscience podcast https://youtube.com/watch?v=luksJZTiS4A

• Tim on the "Synaptic" podcast of The Transmitter https://www.thetransmitter.org/synaptic/timothy-ryan-on-fermilab-atp-at-the-synapse-and-more/