Dr. Rajesh Khanna of the KhannaLabUF
@khannalabuf.bsky.social
410 followers 380 following 160 posts
We are unraveling a QR code for chronic pain | Prof. of Pharmacology & Therapeutics, Univ. of Florida COM | Director, Center for Advanced Pain Therapeutics and Research (CAPTOR) | Mayday Pain Fellow | 🇮🇳🇴🇲🇨🇦🇺🇸 ORCID: 0000-0002-9066-2969
Posts Media Videos Starter Packs
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
antihebbiann.bsky.social
Our model also predicts dynamics of internal pain and effort states- which look intriguingly like two populations of neurons the Betley lab found during miniscope imaging of PBN!
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
antihebbiann.bsky.social
We tried a handful of manipulations, but found that the only really reliable way to suppress pain-coping behavior was to gate out the pain input to the controller. Which PBN is well positioned to do, as it receives direct input from dorsal horn of the spine!
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
antihebbiann.bsky.social
We then asked: computationally, what should NPY signals to to change how this model behaves? Our first guess was it should work by making coping behavior (licking) more 'expensive' in terms of effort, but in the face of a long-lasting pain input (persisting over an hour) this barely changed behavior
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
antihebbiann.bsky.social
Computationally, how is NPY changing behavior? We formulated pain-coping as a control problem- say the goal of the brain is to minimize perceived pain with minimum "effort" (ie time spent attending to pain). Given this goal we can train models to produce 'optimal' behavior to minimize effort + pain
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
antihebbiann.bsky.social
The work builds off of an amazing result from Amber Alhadeff--
paper: www.cell.com/cell/fulltex...
essay: www.science.org/doi/full/10....

when mice are food-deprived, AgRP neurons projecting to parabrachial nucleus start releasing neuropeptide Y, and this mechanism suppresses pain-coping behavior.
A Neural Circuit for the Suppression of Pain by a Competing Need State
Hunger suppresses responses to pain through an AgRP/NPY circuit.
www.cell.com
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
painresforum.bsky.social
Hey pain scientist, if you are looking for a condensed list of the top pain literature released each week, come check out #PRF's new #PapersoftheWeek selections from Greg Scherrer and
@drjerinmathew.bsky.social,
who also commented on the latest Editor's Picks painresearchforum.org/paper/preval...
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
annieneuro.bsky.social
2026 SIBPA|IVSLA Intl School of biophysics, Venice 2-6 February 2026. venice.ibf.cnr.it

This should be an interesting school for students to attend.
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
painresforum.bsky.social
Are you a #trainee looking for experience in scientific news reporting? Apply to this internship on @nature.com’s news team now! bit.ly/4pQaFgT #PRF
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
tedpricethepainguy.bsky.social
Just incredible findings, and a beautifully written paper: www.nature.com/articles/s41... Get your shingrix vaccine! You do not want peripheral neuropathy, and as a bonus you get substantial protection from later development of dementia.
Varicella-zoster virus reactivation and the risk of dementia - Nature Medicine
Large-scale longitudinal health records reveal consistent association of varicella-zoster virus reactivation with dementia.
www.nature.com
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
khannalabuf.bsky.social
Is Nav1.8-specific inhibition the only path? Preferential Nav blockers offer a compelling alternative | PNAS www.pnas.org/doi/10.1073/...

"Preferential Nav channel inhibitors targeting multiple pain-related Navs (Nav1.7, Nav1.8, Nav1.9) may offer a more effective analgesic approach" -- AGREED!
Is Nav1.8-specific inhibition the only path? Preferential Nav blockers offer a compelling alternative | PNAS
Is Nav1.8-specific inhibition the only path? Preferential Nav blockers offer a compelling alternative
www.pnas.org
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
jeremymberg.bsky.social
Compelling and quite disturbing...
lorennacleary.bsky.social
Land of the free. Home of the brave.
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
immunoeditor.bsky.social
Now in #Science #Immunology: Deshpande, Klose, & al at Charité—Universitätsmedizin Berlin report that #ILC2 resident in #PNS communicate with neurons via #IL13 to maintain #nerve structure & pain thresholds. Mice lacking ILC2 or whose neurons are Il4ra-KO exhibit #hypersensitivity & #gait defects!
Group 2 innate lymphoid cells regulate nociceptive and gait functions of the peripheral nervous system
ILC2-neuron cross-talk contributes to the maintenance of nerve structure and function of the peripheral nervous system.
www.science.org
khannalabuf.bsky.social
Excellent. Congrats Sam and colleagues! Look forward to reading this.
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
amapruns.bsky.social
We present the first subset-specific proteomic signature of electrophysiologically-defined, pain-sensing neurons. One step closer to uniting function with molecules- one neuron at a time. Thanks to all who have contributed, especially @coscialab.bsky.social @garyrlewin.bsky.social #neuroscience
biorxivpreprint.bsky.social
Ultrasensitive proteomics uncovers nociceptor diversity and novel pain targets https://www.biorxiv.org/content/10.1101/2025.09.20.677124v1
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
thebalelab.bsky.social
Fantastic piece in Nature Reviews Neuro by @nicolecrust.bsky.social on the importance of science communication. My take? Everything matters - just do something. It will make a difference for how science is valued and trusted, how community understands. Let's get out there and communicate! 👏
The unexpected value of communicating science to the public
Nature Reviews Neuroscience - As a group, our scientific community has a responsibility to unpack the ‘what’ and ‘why’ behind our work for the public, not least because much...
rdcu.be
Reposted by Dr. Rajesh Khanna of the KhannaLabUF
harmitmalik.bsky.social
Any academic folks on H1B visas (even with stamps in passports) please get legal advice from your University attorneys before leaving the US.