Samar Chehimi, PhD

Senior Research Scientist working with molecular neuroscience in the Reiner Lab + president-elect of the Association for Women in Science (PHL) 🧪🧬🔬🇧🇷

[The Nobel Prize @NobelPrize]

BREAKING NEWS
The 2026 #NobelPrize in Physiology or Medicine has been awarded to Karl Deisseroth, Peter Hegemann and Georg Nagel “for their discoveries concerning light-gated ion channels and optogenetics.”

[Benjamin Reiner @DrBenReiner]

TLDR, cocaine self-administration was associated with parallel, cell type-specific NAc programs that prioritize MSN subtypes and astrocytes for mechanistic and manipulation studies.

Team effort with Heath Schmidt, @RickCrist6, @snchehimi, Riley Merkel, et al.

[Benjamin Reiner @DrBenReiner]

These neuronal cell types align with our prior NAc medium spiny neuron (MSN) atlas.
https://t.co/mmkN1E7PC8

[Benjamin Reiner @DrBenReiner]

New preprint from our team! What happens across the nucleus accumbens (NAc) when rats voluntarily take cocaine?

Using snRNA-seq, we find that the response is not uniform and it concentrates in discrete medium spiny neuron subtypes and astrocytes.
https://t.co/ZopVdB4nKq

[Rafeeque @rafeequemavoor]

Free scientific illustrations for biologists! 😍

@NIH has released a library of 500+ free scientific illustrations to create figures, presentations, and illustrations!

all freely available in the public domain.

Retweet and spread the message!
https://t.co/p1bD1kxO7H

[Daniel Gould, MD, PhD @DJGould94]

Academia is a spectrum

[AWISPHL @AWISPHL]

September 25th will be a science day! Join Gliadelphia Fall Symposium from 1-6 pm and, right after, join the Opening Event of AWIS from 5:30-8 pm. Great events that you cannot miss! Register now!

For more information, please visit:
https://t.co/VzXBelcAJS
https://t.co/zZY6eKrUak

[AWISPHL @AWISPHL]

SAVE THE DATE! We're having our opening event on September 25! Join us at Drexel's legacy center to learn more about the history of women in science and medicine! For more information and registration, visit https://t.co/zhbD1fQ2FN. Hope to see you there! Share with your friends!

[Samar Chehimi, PhD @snchehimi]

Today I presented some of our preliminary data on fentanyl+xylazine in rats at @CPDDorg ! 🎉💪🏻

@DrBenReiner thank you for supporting me and for the huge effort with data analysis!

Long read seq generates sooo much data, but we’re excited to do more and more! 📊

[John Penniman @Historiographos]

I will never recover from this student email.

[Dr. Debra Bangasser @Bangasser_Lab]

🎉🎊🍾 It’s NOA day!!!!

Excited to work on this project w/ MPI #dreamteam @WimmerLab @DrBenReiner

Thanks @NIDAnews for supporting our R21 on: Cell-specific epigenetic and transcriptomic signatures of impulsivity and its regulation by stress in the nucleus accumbens

[Samar Chehimi, PhD @snchehimi]

@thielerosales @wallyjoe33 Amazing! 🎉

[Samar Chehimi, PhD @snchehimi]

Good morning from Bethesda!

[Samar Chehimi, PhD @snchehimi]

Very excited to share my first review paper in Reiner lab! 🎉🧬

I couldn’t be happier with the result and the amazing mentorship Ben and Rick gave me while I was working on this paper! To many more to come! 🥂

⁦@DrBenReiner⁩ https://t.co/rHJo86Knxf

[Samar Chehimi, PhD @snchehimi]

First step on my baby steps to learn the bioinformatics needed to process sequencing data

[Leticia Kawano-Dourado (I'm on BlueSky/LinkedIn) @leticiakawano]

As a Brazilian🇧🇷, I'm full of hope for this new year

I'm also proud of all the Brazilians that held strong during these 4 years of science denialism, and de-funding

These times are over but still lots to accomplish... at least we don't have a Government against us scientists

[Samar Chehimi, PhD @snchehimi]

@Bangasser_Lab It’s my pleasure! Looking forward to generate lots of cool single-cell data ☺️💪🏻

[Samar Chehimi, PhD @snchehimi]

First function of the Chromium: GEM (gel bead-in-emulsion) droplets

Second function: selfies!

[Benjamin Reiner @DrBenReiner]

Very excited to announce that @snchehimi has joined my lab as a postdoc, expanding our neural #SingleCell studies of psychiatric disease and addiction. Her first job was to set up our new @10xGenomics Chromium X. They are shiny for selfies, right?

[Maly Cosco @malycat03]

Impactful words by @CarolynBertozzi today on how diversity in her trainees enabled creativity, not playing by the rules, and ultimately the work that built the field of bioorthogonal chemistry. Diverse science leads to better science!