BohacekLab Profile Banner
Johannes Bohacek Profile
Johannes Bohacek

@BohacekLab

Followers
3K
Following
7K
Media
536
Statuses
4K

Dad. Associate Professor @eth_en, studying stress, behavior, hippocampus, noradrenaline and the mighty locus coeruleus Here to learn, share, laugh and rant.

Zurich, Switzerland
Joined May 2017
Don't wanna be here? Send us removal request.
@BohacekLab
Johannes Bohacek
4 months
We just released the largest amount of stress profiling data from our (any?) lab so far!. How does the molecular stress response adapt as an acute stressor becomes chronic?. Multiomic profiling in the 🐭 hippocampus, led by @RebeccaWaag and co-last author Pierre-Luc Germain! 💪.
@biorxiv_neursci
bioRxiv Neuroscience
4 months
Distinct molecular mechanisms of stress habituation in the mouse hippocampus #biorxiv_neursci.
2
8
34
@BohacekLab
Johannes Bohacek
3 months
RT @SchrattL: Our study describing a role for the circular RNA circRERE in the regulation of silent excitatory synapses is finally out @Nat….
0
6
0
@BohacekLab
Johannes Bohacek
4 months
Stellar women-only (💪) panel on stress and development, loaded with cutting-edge multiomic data kicking off the European Stress Conference #ESC2025 in Innsbruck, Austria
Tweet media one
0
2
6
@BohacekLab
Johannes Bohacek
4 months
Most importantly: We developed an automated, portable pain and welfare monitoring system (combining "mouse grimace scale" and full-body pose-estimation with behavior flow analysis). Brilliant work by @osturmscience, the @ETH_en 3R-Hub and our collaborator Katharina Hohlbaum. 💪
Tweet media one
0
0
3
@BohacekLab
Johannes Bohacek
4 months
Note: Modest grimace pain levels remain detectable for 24hrs after surgery. Neither meloxicam (5mg/kg) nor the combination of meloxicam(5mg/kg)+buprenorphine(0.1mg/kg) could eliminate these remaining pain levels. We detect strong side-effects from opioid treatment (hyperactive).
Tweet media one
1
0
0
@BohacekLab
Johannes Bohacek
4 months
How much analgesia is needed to manage pain levels in mice after brain surgeries?.A single dose of meloxicam seems to be enough. Even the addition of opioids cannot provide a clear benefit (in line with recent work from others, see refs in our preprint):.
1
17
47
@BohacekLab
Johannes Bohacek
4 months
And saving the best for last: We integrate these results with previously published bulk and single-cell data from our lab and make these data freely accessible and searchable through an interactive app (. We hope people like this resource - please RT! 🙏.
0
0
1
@BohacekLab
Johannes Bohacek
4 months
On a single-cell level, we reveal blunted chromatin accessibility changes after chronic stress for cAMP signaling, and a damped response that returns to baseline much faster for glucocorticoid receptor binding. This again points to two parallel mechanisms of habituation.
Tweet media one
1
0
0
@BohacekLab
Johannes Bohacek
4 months
We replicate the profound damping of transcription on a single-cell, multi-omic level (24 biological samples), showing cell-type specificity in stress-induced transcriptional changes and diverse temporal dynamics. It seems that fewer neurons get activated.
Tweet media one
1
0
1
@BohacekLab
Johannes Bohacek
4 months
Bioinformatic and experimental approaches identify two parallel, independent mechanisms of habituation: an early blunting of transcription due to cAMP signaling, and a late blunting related to corticosterone signaling at the glucocorticoid receptor.
1
0
0
@BohacekLab
Johannes Bohacek
4 months
We find that the transcriptional stress response dramatically habituates in every animal, profoundly blunting every stress induced gene. Habituation is already established after 10 days. There is no emergence of adaptive responses, and no change in baseline gene expression 😱!
Tweet media one
1
0
0
@BohacekLab
Johannes Bohacek
4 months
First, we profiled the transcriptomic and chromatin accessibility response to an acute restraint stress challenge over time. Then we repeated this after 10 and 20 days of stress exposure (192 biological samples for transcriptomics, 32 for ATAC-seq).
Tweet media one
1
0
1
@BohacekLab
Johannes Bohacek
6 months
RT @Joel_Mesot: With best wishes for 2025, I bid farewell to this communication channel. I am following various colleagues from the univers….
0
1
0
@BohacekLab
Johannes Bohacek
7 months
Opportunity of a lifetime! Join us as a professor at @ETH_en !.
0
4
3
@BohacekLab
Johannes Bohacek
7 months
RT @ETH_en: At its meeting on December 5, 2024, the ETH Board appointed nine professors at the request of ETH President Joël Mesot. In addi….
0
4
0
@BohacekLab
Johannes Bohacek
7 months
Cool! Congrats, @lustenca !.
@ETH_en
ETH Zurich
7 months
Sleep problems have become a widespread issue. In a new popular science book and in an interview with ETH News, ETH sleep researcher Caroline Lustenberger describes the do’s (and don’ts) for when you can’t get to #Sleep.
0
1
3
@BohacekLab
Johannes Bohacek
7 months
RT @anita_luthi: @LabLuthi uncovers a dual role of #locus @coeruleus in #sleep -> 1) its strict gatekeeper role for the sleep cycle 2) the….
0
47
0
@BohacekLab
Johannes Bohacek
7 months
RT @jmourabarbosa: We did it. We killed neuro twitter and it's resuscitation it's happening somewhere else. Come join us!. .
0
37
0
@BohacekLab
Johannes Bohacek
8 months
I know I'm late to the game, but hey. @bohaceklab.bsky.social.
1
0
0
@BohacekLab
Johannes Bohacek
8 months
I have to thank the editor Nina Vogt, the editorial process was very supportive, fair and efficient. The reviewers asked for a lot, but it clearly improved the paper a lot. For a thread on the work, follow this link:
@naturemethods
Nature Methods
8 months
BehaviorFlow from the @BohacekLab is an analysis package that overcomes challenges with multiple testing when dealing with large numbers of behavioral variables and limited data. BehaviorFlow also allows combining datasets from different experiments.
Tweet media one
0
3
23