Joined March 2020
- Tweets 728
- Following 2,294
- Followers 820
- Likes 3,209
66 Photos and videos
Pinned Tweet
9 Aug 2022
A quick overview of Optical Mapping System for cardiac electrophysiology research.
Effortlessly record cardiac membrane potential and calcium transient.
#opticalmapping #cardiotwitter #Cardiology #arrhythmia #heart @MappingLab_EP
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Jay Lu, DPhil retweeted
Mar 15
A new study shows that inherited arrhythmias like CPVT are not driven by cardiomyocytes (CM) alone.
Using hiPSC-derived neuro-cardiac models, the team found dysfunctional sympathetic neurons can trigger #arrhythmia in otherwise healthy CM.
#electrophysiology #cardiology #mapping
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Feb 16
❤❤❤
Jan 22
We are excited to announce the successful installation of our optical mapping system in the laboratory of Prof. Nipavan Chiamvimonvat at the University of Arizona. The system is now fully operational and provides high-resolution, synchronized mapping of cardiac AP and Ca signals.
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Jay Lu, DPhil retweeted
Jan 28
One of the simplest ways to record field potentials and ECG in a Langendorff heart preparation.
Simply apply microelectrode arrays and ECG electrodes directly to the heart.
#CardioTwitter #Electrophysiology #ElectricalMapping #DrugScreening #Cardiotoxicity #iPSC #Heart
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Jay Lu, DPhil retweeted
23 Dec 2025
23 Dec 2025
Thrilled to share our new preclinical paper: low-dose (nonablative) cardiac radiation reduces VT/VF in NICM — associated with improved ventricular conduction and sympathetic nerve distribution.
Grateful for our stellar team: @alicardsdoc @carmenbergom @drlpedersen @doctorphillep @rentschlerlab and first author Devaki Abhyankar.
🔗 doi.org/10.1016/j.jacep.2025…
#Electrophysiology #VT #CardioOncology #TranslationalScience @uclahealthnews @jaccjournals
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Jay Lu, DPhil retweeted
22 Dec 2025
The first gene-edited miniature pig model of LQT2 is here.
By combining ECG telemetry, electrical mapping, and optical mapping, this study delivers a truly translational view of hERG-related arrhythmias in a large-animal heart.
Short version:
bit.ly/4jaguCV
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Jay Lu, DPhil retweeted
19 Sep 2025
Calcium and Contractility Mapping System: An Integrated Solution for Cardiac Research
open.substack.com/pub/jayjay…
#Cardiology #cardiomyocytes #ipsc #mapping #calciumimaging #opticalmapping
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Jay Lu, DPhil retweeted
5 Sep 2025
Yu et al. (2025) showed that an Andr-loaded atrial patch prevents POAF by reducing inflammation, oxidative stress, and calcium imbalance. In a rat model, it lowered Afib incidence from 90% to 20% and protected heart cells, highlighting a promising targeted therapy for POAF.
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Jay Lu, DPhil retweeted
24 Sep 2025
Unlock the mysteries of cardiac arrhythmias with our advanced Electrical Mapping System! High precision data acquisition and MEA provide unparalleled insights into electrical activity at the tissue level. Perfect for anti-arrhythmic drug screening and toxicity testing.
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13 Sep 2025
Our electrical mapping workflow offers a fast and accessible way to measure epicardial field potentials — ideal for quick assessments in drug testing and disease models. ⚡❤️
#activationmap #electrophysiology #Langendorff #drugscreening #cardiotwitter #Cardiology
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Jay Lu, DPhil retweeted
3 Sep 2025
Come to join us for exchanging ideas and networking with colleagues and friends.
3 Sep 2025
🫀 A healthy heart requires intricate crosstalk between different cell types to keep it functioning well. We shall explore these interactions over the next two days at #HeartCrossTalk2025 @unibirmingham.
View today's line up of speakers and topics ⬇️ buff.ly/ZqCSNzT
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Jay Lu, DPhil retweeted
25 Sep 2024
Excited to share the Langendorff technique for heart cannulation—an excellent method for advancing functional studies 😎
#CardioTwitter #MedTwitter #Langendorff #electrophysiology #heart #Cardiology #opticalmapping #electricalmapping #MEA
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17 Aug 2025
Features:
◉ Precise analysis of Ca waves, transients, E–C coupling, and sarcomere length
◉ >3000 FPS CMOS imaging with 95% QE and <1 e⁻ noise
◉ All-in-one system with dual-dye recording across 400–800 nm.
◉ High-throughput Ca imaging in 10 cells simultaneously
6 Aug 2025
A new video showcasing our Calcium and Contractility Mapping System on iPSC-CMs. It enables simultaneous, high-res measurement of Ca transients and contractility with advanced mapping features.
#cardiomyocyte #singlecell #mapping #calcium #electrophysiology #cardiology #ipsc
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7 Aug 2025
◉ Precise sarcomere length measurement in single cells for detailed analysis of contractile function.
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Jay Lu, DPhil retweeted
6 Aug 2025
Join our team!
Posnack cardiac research lab will hire 2 Research Technicians focused mainly in:
1) Wet lab: animal and cell research, and/or 2) Dry lab: data extraction and analysis.
Interested? Send your resume: nposnack@cnmc.org
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Jay Lu, DPhil retweeted
26 Jul 2025
We’re delighted to meet new friends and clients at #BCVS2025. Thank you very much for the great conversations—looking forward to future collaborations in cardiac research.
@carmine_3Dheart @HanKimLab
@lamc_14 @AHAMeetings @American_Heart #bcvs25
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Jay Lu, DPhil retweeted
23 Jul 2025
We are exhibiting at the BCVS in Baltimore. We warmly invite all researchers and colleagues to visit our booth and connect with our team.
#BCVS2025 @AHAScience @AHAMeetings @American_Heart #cardiotwitter #electrophysiology #microelectrodearray #opticalmapping
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