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Christos Lisgaras

@chrislisgaras.bsky.social
290 followers 263 following 53 posts

Res. Assistant Professor at NYU Grossman School of Medicine, Department of Psychiatry. Epilepsy, Alzheimer’s disease and Oscillations #HFOnews #ADEEGnews #CA2news linktr.ee/clisgaras med.nyu.edu/faculty/christos-lisgar…

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Christos Lisgaras @chrislisgaras.bsky.social · 16/09/2026
New paper out in @thelancet.com! In >4,000 people with Down syndrome, we show when epilepsy emerges and its clinical impact. Natural history and clinical impact of epilepsy in adults with Down syndrome: a multicentre clinical study - The Lancet www.thelancet.com/journals/lan...
thelancet.com
Natural history and clinical impact of epilepsy in adults with Down syndrome: a multicentre clinical study
Epilepsy increases sharply after symptomatic Alzheimer's disease onset in people with Down syndrome. The association of epilepsy with reduced survival and accelerated cognitive decline underscores the...
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Christos Lisgaras @chrislisgaras.bsky.social · 09/07/2026
New paper out from postdoctoral fellow in my lab, Dr. Jiaojiao Guo examining the expanding role of electroencephalography (EEG) in neurodegenerative disease and its utility in dementia. Check it out! www.nature.com/articles/s44...
nature.com
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Christos Lisgaras @chrislisgaras.bsky.social · 21/02/2026
For decades, Alzheimer’s therapies assumed more acetylcholine = better memory. Our new paper in @alzdemjournals.bsky.social challenges this dogma, showing that the cholinergic system has opposite effects on memory depending on disease stage. 📌 alz-journals.onlinelibrary.wiley.com/doi/10.1002/...
alz-journals.onlinelibrary.wiley.com
The cholinergic system exerts opposing effects on memory at different stages of disease progression in Alzheimer's and Down syndrome model systems
INTRODUCTION The long-standing cholinergic hypothesis posits that cholinergic signaling is uniformly deficient in Alzheimer's disease (AD) and Down syndrome (DS). We tested the hypothesis that this ...
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Christos Lisgaras @chrislisgaras.bsky.social · 17/02/2026
More than 20 years after their discovery, HFOs are reshaping how we understand epilepsy and increasingly, revealing important links to other brain disorders. In our new paper we reflect on how far the field has come and where it’s headed next. #HFOnews onlinelibrary.wiley.com/doi/10.1002/...
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Christos Lisgaras @chrislisgaras.bsky.social · 05/02/2026
Thank you @cureepilepsy.bsky.social for this honor and for supporting my lab’s work on high frequency oscillations in epilepsy through a CURE Epilepsy award! #HFOnews Congratulations to all awardees!
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Christos Lisgaras @chrislisgaras.bsky.social · 03/12/2025
Not just one biomarker, but many! Join our Epilepsy and Aging SIG for an exciting multimodal biomarker session. The session has it all from basic science to neuropsychology, EEG, and more! 🗓️ Monday, December 7, 2:00-3:30pm, Room GWCC B312, Level 3. @amepilepsysoc.bsky.social @yes-ilae.bsky.social
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Christos Lisgaras @chrislisgaras.bsky.social · 02/12/2025
The @amepilepsysoc.bsky.social AES Annual Meeting is quickly approaching - have you marked your calendar for the exciting EEG BIOMARKER CHALLENGE? We will tackle whether EEG biomarkers are disease specific and WHY that matters! 🗓️ Sunday, December 7, 4:00-5:30pm Join us! #HFOnews
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Christos Lisgaras @chrislisgaras.bsky.social · 02/12/2025
Not to be missed!! Mark your calendar! Great networking opportunity.
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Reposted by Christos Lisgaras
Brain Communications @braincomms.bsky.social · 25/10/2025
This scientific commentary refers to ‘High-frequency oscillations in epileptic and non-epileptic Alzheimer's disease patients and the differential effect of levetiracetam on the oscillations’, by Shandilya et al. @chrislisgaras.bsky.social Read at 👉 buff.ly/r3IcOEE
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Christos Lisgaras @chrislisgaras.bsky.social · 07/11/2025
New paper out! We show that EEG biomarkers interact in opposite ways in Alzheimer’s disease (AD) vs. epilepsy. This could explain why epileptiform activity is inconsistently seen in AD—and highlights the need for wideband EEG to uncover these dynamics. #HFOnews www.sciencedirect.com/science/arti...
sciencedirect.com
Opposing interictal dynamics in Alzheimer’s disease and epilepsy
Advanced EEG technology has revealed that epileptiform activity occurs more frequently in Alzheimer’s disease (AD) than previously recognized, prompti…
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Christos Lisgaras @chrislisgaras.bsky.social · 07/10/2025
Greatly enjoyed writing this piece for @braincomms.bsky.social! 🔹 "High frequency opportunities for Alzheimer's disease" academic.oup.com/braincomms/a... This commentary calls for rethinking how we “listen to” and interpret abnormal electrical activity in Alzheimer’s disease and related dementias.
academic.oup.com
High frequency opportunities for Alzheimer’s disease
This scientific commentary refers to ‘High-frequency oscillations in epileptic and non-epileptic Alzheimer's disease patients and the differential effect o
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Christos Lisgaras @chrislisgaras.bsky.social · 25/08/2025
Off to beautiful Lisbon to speak the XVIII Workshop on Neurobiology of Epilepsies. Excited about this year’s topic on the resilient brain! Who’s coming?! #HFOnews 🧠 #ILAE @ilae-epilepsy.bsky.social
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Christos Lisgaras @chrislisgaras.bsky.social · 21/07/2025
Exited to share our new work! We found scalp high frequency oscillations (HFOs) in adults with Down syndrome, before the clinical onset of Alzheimer’s dementia and late onset myoclonic epilepsy. HFOs may hold the key to earlier diagnosis #HFOnews alz-journals.onlinelibrary.wiley.com/doi/10.1002/...
alz-journals.onlinelibrary.wiley.com
High‐frequency oscillations >250 Hz in people with Down syndrome and associated Alzheimer's disease dementia
INTRODUCTION Alzheimer's disease (AD) dementia has near full penetrance in adults with Down syndrome (DS) and is strongly linked to late-onset myoclonic epilepsy in Down syndrome (LOMEDS). However, ...
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Christos Lisgaras @chrislisgaras.bsky.social · 08/07/2025
Interested in how sleep is affected across the Alzheimer’s disease continuum in people with Down syndrome? 💤 Check our new publication with collaborators in Spain out in Alzheimer’s & Dementia: The Journal of the Alzheimer’s Association. alz-journals.onlinelibrary.wiley.com/doi/10.1002/...
alz-journals.onlinelibrary.wiley.com
Impact of Alzheimer's disease on sleep in adults with Down syndrome
INTRODUCTION Down syndrome (DS) is a genetic form of Alzheimer's disease (AD), with a high prevalence of sleep disorders, but data in adults with DS and dementia are lacking. We aim to assess sleep ...
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Christos Lisgaras @chrislisgaras.bsky.social · 13/06/2025
Interested in how preclinical studies can help understand EEG patterns? Take a look at our book chapter! With Marco de Curtis and Premysl Jiruska. link.springer.com/chapter/10.1... #HFOnews
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Christos Lisgaras @chrislisgaras.bsky.social · 11/06/2025
#HFOnews! And first outcome publication of the Third International Workshop on High Frequency Oscillations in Epilepsy. 👇👇
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Christos Lisgaras @chrislisgaras.bsky.social · 16/05/2025
Off to beautiful Verona for the Spring Hippocampal Research Conference! Who’s coming?! #HFOnews hippo.euroconferences.org/scientific-p...
hippo.euroconferences.org
Scientific Program
If  you determine at the last minute that you cannot travel to Verona, you will have the option of providing a video of your presentation, which will be played in the session in which you are...
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Christos Lisgaras @chrislisgaras.bsky.social · 10/04/2025
Excited to be speaking about High Frequency Oscillations in Epilepsy and Sleep at the 2nd Annual Sleep Conference in NYC!
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Christos Lisgaras @chrislisgaras.bsky.social · 21/03/2025
Happy World Down Syndrome day! We are advocating and are all inspired by individuals with Down syndrome. #WDSD2025
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Christos Lisgaras @chrislisgaras.bsky.social · 21/03/2025
Join us next week for an @ilae-epilepsy.bsky.social webinar on High Frequency Oscillations! Dr. Sheybani @laurentsheybani.bsky.social and Dr. Jacobs will talk all about HFOs in epilepsy. #HFOnews Register here: docs.google.com/forms/d/1e-x...
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Christos Lisgaras @chrislisgaras.bsky.social · 13/03/2025
A great one by @laurentsheybani.bsky.social - on the reading list!
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Christos Lisgaras @chrislisgaras.bsky.social · 01/03/2025
www.nia.nih.gov/research/blo...
nia.nih.gov
Beyond amyloid: Targeting a broader range of Alzheimer's disease factors
Learn how Alzheimer's and dementia research targets have evolved.
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Christos Lisgaras @chrislisgaras.bsky.social · 21/02/2025
#HFOnews
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Christos Lisgaras @chrislisgaras.bsky.social · 17/02/2025
Our #EEG Review was selected as @epilepsiajournal.bsky.social Editor’s Featured Article - give it a read here👇 onlinelibrary.wiley.com/doi/10.1111/...
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Christos Lisgaras @chrislisgaras.bsky.social · 15/02/2025
Super excited to see our 2022 animal model study (onlinelibrary.wiley.com/doi/10.1111/...) showing HFOs in Alzheimer’s model systems replicated in humans! @braincomms.bsky.social The dream of every basic scientist 🤩 Our human study coming very soon :) #HFOnews academic.oup.com/braincomms/a...
onlinelibrary.wiley.com
High‐frequency oscillations (250–500 Hz) in animal models of Alzheimer's disease and two animal models of epilepsy
Objective To test the hypothesis that high-frequency oscillations (HFOs) between 250 and 500 Hz occur in mouse models of Alzheimer's disease (AD) and thus are not unique to epilepsy. Methods Exper.....
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Christos Lisgaras @chrislisgaras.bsky.social · 13/02/2025
Our review discussing the role of EEG in Epilepsy research is now out @epilepsiajournal.bsky.social @ilae-epilepsy.bsky.social Thanks to all of my co-authors! onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
The role of electroencephalography in epilepsy research—From seizures to interictal activity and comorbidities
Electroencephalography (EEG) has been instrumental in epilepsy research for the past century, both for basic and translational studies. Its contributions have advanced our understanding of epilepsy, ...
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Christos Lisgaras @chrislisgaras.bsky.social · 07/02/2025
The time has come!
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Reposted by Christos Lisgaras
Tristan Shuman @tristanshuman.bsky.social · 28/01/2025
New paper out in Cell Reports! Led by @susieyufeng.bsky.social, we found that chronic epilepsy in mice drives distinct synchronization deficits in hippocampus and MEC, with early changes in HPC and late-onset changes in MEC that align with progressive memory impairment. www.cell.com/cell-reports...
Screenshot of article entitled "Distinct changes to hippocampal and medial entorhinal circuits emerge across the progression of cognitive deficits in epilepsy" by Yu Feng, Keziah S. Diego, Zhe Dong, ..., Nadia N. Khan, Denise J. Cai, and Tristan Shuman. 

In brief: Feng et al. demonstrate that memory deficits in temporal lobe epilepsy involve multiple discrete mechanisms with distinct time courses. In epileptic mice, early-onset memory deficits are associated with disrupted hippocampal synchronization, while more severe, lateonset impairments are associated with disrupted synchrony of medial entorhinal cortex circuits.
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Reposted by Christos Lisgaras
Misha Zilberter @mzilberter.bsky.social · 13/01/2025
🚨NIH-funded postdoc position! Looking for an electrophysiologist (ex/in-vivo) to work with us at Gladstone Institutes on mechanisms of oxidative stress, glucose metabolism, and network hyperexcitability in Alzheimer's disease 🧠 #neurojobs #postdocjob gladstone.wd5.myworkdayjobs.com/en-US/career...
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Reposted by Christos Lisgaras
Hongyu_Chang @hongyuchang.bsky.social · 02/01/2025
SEEING THROUGH YOUR EYES 👁️: Excited to share our new paper (which is out now @nature.com !!) with Wenbo Tang, Antonio Fernandez-Ruiz✉️, and Azahara Oliva✉️: we discovered a novel sleep microstructure that promotes memory replay! #Neuroscience #hippocampus nature.com/articles/s41... 🧵 1/12👇
nature.com
Sleep microstructure organizes memory replay - Nature
The temporal microstructure of the brain can multiplex distinct cognitive processes during sleep to support continuous learning.
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Christos Lisgaras @chrislisgaras.bsky.social · 05/12/2024
What a great weather in LA!!
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Christos Lisgaras @chrislisgaras.bsky.social · 05/12/2024
On my way to sunny LA for the @amepilepsysoc.bsky.social Annual Meeting! Excited to be speaking about common EEG disturbances in Alzheimer’s Disease and Epilepsy models. Join our IW on AD and Epilepsy on Dec 8 at 3:15pm, Room 403A!
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Christos Lisgaras @chrislisgaras.bsky.social · 02/12/2024
@serenadudette.bsky.social 💯 www.biorxiv.org/content/10.1...
biorxiv.org
Hippocampal CA2 neurons disproportionately express AAV-delivered genetic cargo
Hippocampal area CA2 is unique in many ways, largely based on the complement of genes expressed there. We and others have observed that CA2 neurons exhibit a uniquely robust tropism for adeno-associat...
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Christos Lisgaras @chrislisgaras.bsky.social · 27/11/2024
#Bluesky meetup at AES? Who is in?!
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Christos Lisgaras @chrislisgaras.bsky.social · 27/11/2024
Attending AES next week? Make sure you stop by at this social event! #AES #yesLAE
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Christos Lisgaras @chrislisgaras.bsky.social · 23/11/2024
www.nature.com/articles/s41...
nature.com
The BRAIN initiative: a pioneering program on the precipice - Nature Neuroscience
Launched in 2013, the BRAIN Initiative (BRAIN) in the United States aimed to unlock the mysteries of the brain and develop new treatments for neurological and neuropsychiatric disorders. The success o...
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Christos Lisgaras @chrislisgaras.bsky.social · 20/11/2024
Here we are! 🦋 who’s around?!
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