Community Stories

The figure illustrates schematically a working model of how age-related accumulation of cancer driver mutations occurs with normal aging (purple microglial cells), but can be accelerated in its effects by the inflammatory effects of amyloid and tau proteins in AD, causing mutant microglia to out-compete the normal microglia (blue) for survival. Mutant microglia activate inflammatory and secretory pathways that have been shown to be toxic to non-mutant microglia, as well as to neurons, potentially contributing to neuronal degeneration. Figure taken from Huang et al, (2026).
September 3, 2026
What if every cell in your brain had its own unique genome that permanently records its history, its sibling cells, its age, the effects of disease, and its struggle for survival? How would that change the way we think about aging and degeneration in the brain? Christopher Walsh discusses these questions in light of two new studies from his lab and collaborating groups.
Cross section of the colon showing gut neurons
September 2, 2026
Host-microbe interactions are essential for neurological function. Valentina Lagomarsino shares new research from the Rao Lab showing how microbes play a vital role in regulating the neuroendocrine axis and activity of motor circuits in the colon.
Original article in: Nature Neuroscience >
Shown in yellow is a biocytin filled parvalbumin interneuron in the hippocampus of an adult mouse (CA3/CA2 region). The red cells are other parvalbumin interneurons.
August 25, 2026
Amar Sahay shares his lab’s discovery that many ultra-high confidence risk genes for autism, bipolar disorder, schizophrenia, and epilepsy may be regulators of experience-dependent plasticity of inhibitory neurons in the hippocampus of adult mice. Proof-of-concept experiments reveal that targeting one of these regulators can improve cognition and suppress seizures in a common mouse model of neurodevelopmental disorder risk.
Original article in: Nature >
Starburst model showcasing 13 competency areas
February 24, 2026
How do we prepare early-career scientists for today’s wide range of paths in and beyond the lab? Jelena Patrnogić shares a new flexible competency framework she developed with Xiuqi Li and David Van Vactor that makes expectations clearer for trainees, mentors, and programs, and supports growth across both research and professional skills.
Original article in: PLoS Biology >

In the News

a closeup of a us military member saluting
August 25, 2026
Male veterans of the U.S. Air Force, Navy, and Coast Guard had higher rates of amyotrophic lateral sclerosis (ALS), a fatal nervous system disease, compared to veterans of the Army, according to a new study from Marc G. Weisskopf, Andrea Roberts, and colleagues.
Original article in: Neurology >
Artist rendition of brain circuitry. Image: nopparit/E+/Getty Images
August 25, 2026
For decades, neuroscientists have been able to record which parts of the brain show increased electrical activity during a behavior, such as when we form a memory or make a decision. But scientists haven’t been able to determine how those regions are communicating with and influencing one another, nor identify which regions serve as the main orchestrators. A new artificial intelligence framework called Current-Based Decomposition, or CURBD, can now make that distinction.
Original article in: Neuron >
orepinephrine-producing axons (stained green) and dopamine-producing cells (stained magenta) can be intermixed in the brain. Image: Ricardo López
August 25, 2026
A lot is known about communication via classically described synapses, but over the last decade, new tools have allowed scientists to focus increasingly on other, more diffuse systems, in which brain chemicals called neuromodulators communicate with many different cells over longer time frames. New research shows that fluorescent sensors commonly used in this research can mix up two neuromodulators: dopamine and norepinephrine. 
Original article in: Nature Neuroscience >

Awards & Honors

blue award ribbon illustration
August 5, 2026
Round up of awards and honors earned by the HBI community.
blue award ribbon illustration
July 13, 2026
Round up of awards and honors earned by the HBI community.