Dr. Ari Kozik
@drkozik.bsky.social
Scientist. Host-Microbe Interactions. Airway Microbiome. Multi-omics. Asst. Prof @ UMich. PI of @koziklab
Nerd.
https://sites.lsa.umich.edu/koziklab/
Nerd.
https://sites.lsa.umich.edu/koziklab/
AHHHHHH CONGRATULATIONSSSSS!!!!! ☺️
January 26, 2026 at 2:51 AM
AHHHHHH CONGRATULATIONSSSSS!!!!! ☺️
Sending you a message!
January 25, 2026 at 9:58 PM
Sending you a message!
Thank you! Yes, we are working on that now. Hoping to recapitulate physiological conditions as close as we can so that we can really assess the interactions under those conditions.
January 25, 2026 at 9:08 PM
Thank you! Yes, we are working on that now. Hoping to recapitulate physiological conditions as close as we can so that we can really assess the interactions under those conditions.
In the oxygen exposed cells, but it doesn’t have the whole chain like we’d expect in facultative bacteria. It seems like there’s an undisclosed third option at play.
January 24, 2026 at 5:18 PM
In the oxygen exposed cells, but it doesn’t have the whole chain like we’d expect in facultative bacteria. It seems like there’s an undisclosed third option at play.
To be determined. Based on our experiments here, it is “consuming” the oxygen, but whether that is for energetic benefit or just neutralizing it in someway is what we are working on now. We found expression of *components* of the canonical electron transport chain
January 24, 2026 at 5:18 PM
To be determined. Based on our experiments here, it is “consuming” the oxygen, but whether that is for energetic benefit or just neutralizing it in someway is what we are working on now. We found expression of *components* of the canonical electron transport chain
& interacts in the lungs, and what that means for us in both health and in disease. 🧬🔬
Stay tuned!
Shoutout to my incredible trainees, especially @clairealbright.bsky.social,who took the lead on this project when it was just one of my crazy ideas & hit the ground running 🏃♀️💨 #MicroSky
/fin
Stay tuned!
Shoutout to my incredible trainees, especially @clairealbright.bsky.social,who took the lead on this project when it was just one of my crazy ideas & hit the ground running 🏃♀️💨 #MicroSky
/fin
January 24, 2026 at 4:34 PM
& interacts in the lungs, and what that means for us in both health and in disease. 🧬🔬
Stay tuned!
Shoutout to my incredible trainees, especially @clairealbright.bsky.social,who took the lead on this project when it was just one of my crazy ideas & hit the ground running 🏃♀️💨 #MicroSky
/fin
Stay tuned!
Shoutout to my incredible trainees, especially @clairealbright.bsky.social,who took the lead on this project when it was just one of my crazy ideas & hit the ground running 🏃♀️💨 #MicroSky
/fin
This discovery doesn't just change a label—it opens an entirely new chapter in respiratory microbiology. 🫁✨
We still have a lot to learn about the mechanisms that allow these "anaerobes" to adapt to our airways so seamlessly. We are looking forward to working to understand how Prevotella thrives
5/6
We still have a lot to learn about the mechanisms that allow these "anaerobes" to adapt to our airways so seamlessly. We are looking forward to working to understand how Prevotella thrives
5/6
January 24, 2026 at 4:34 PM
This discovery doesn't just change a label—it opens an entirely new chapter in respiratory microbiology. 🫁✨
We still have a lot to learn about the mechanisms that allow these "anaerobes" to adapt to our airways so seamlessly. We are looking forward to working to understand how Prevotella thrives
5/6
We still have a lot to learn about the mechanisms that allow these "anaerobes" to adapt to our airways so seamlessly. We are looking forward to working to understand how Prevotella thrives
5/6
🔎💻 We then went to the transcriptome to look under the hood and found evidence for reprogramming associated with oxygen exposure that deploys defense strategies we didn't know it had!! 🛡️
4/6
4/6
January 24, 2026 at 4:34 PM
🔎💻 We then went to the transcriptome to look under the hood and found evidence for reprogramming associated with oxygen exposure that deploys defense strategies we didn't know it had!! 🛡️
4/6
4/6
By directly testing intermediate --- higher than 0%, but not only 21% (room air) oxygen levels--- we found that P. melaninogenica actually has a robust ability to grow in intermediate oxygen AND can even stay alive without replicating in higher levels of oxygen.
3/6
3/6
January 24, 2026 at 4:34 PM
By directly testing intermediate --- higher than 0%, but not only 21% (room air) oxygen levels--- we found that P. melaninogenica actually has a robust ability to grow in intermediate oxygen AND can even stay alive without replicating in higher levels of oxygen.
3/6
3/6
Microbiome data shows that P. melaninogenica can make up ~10% of the airway bacterial community. We see it in datasets from both asthma/COPD and healthy people. Hiding in the one place it 'shouldn't' be. Turns out, P. melaninogenica is much more versatile than we thought
2/6
2/6
January 24, 2026 at 4:34 PM
Microbiome data shows that P. melaninogenica can make up ~10% of the airway bacterial community. We see it in datasets from both asthma/COPD and healthy people. Hiding in the one place it 'shouldn't' be. Turns out, P. melaninogenica is much more versatile than we thought
2/6
2/6
Just when we think we've got them figured out, bacteria find a way to surprise us. For a century we've been calling Prevotella melaninogenica a strict anaerobe (oxygen =☠️), but its been chillin' in oxygen rich parts of the body -- the respiratory tract 👄🫁. A thread on a new preprint from my lab🧵:
Aerotolerant Capacity of the Lung Commensal Prevotella melaninogenica https://www.biorxiv.org/content/10.64898/2026.01.19.700327v1
January 24, 2026 at 4:34 PM
Just when we think we've got them figured out, bacteria find a way to surprise us. For a century we've been calling Prevotella melaninogenica a strict anaerobe (oxygen =☠️), but its been chillin' in oxygen rich parts of the body -- the respiratory tract 👄🫁. A thread on a new preprint from my lab🧵:
Reposted by Dr. Ari Kozik
I am pleased to announce the submission of my first author manuscript, "Aerotolerant Capacity of the Lung Commensal Prevotella melaninogenica," now available as a preprint.
🧫🧫🧫
Thank you to my mentors Dr. Ariangela Kozik @drkozik.bsky.social and Dr. Gary Huffnagle at UM.
🧫🧫🧫
Thank you to my mentors Dr. Ariangela Kozik @drkozik.bsky.social and Dr. Gary Huffnagle at UM.
Aerotolerant Capacity of the Lung Commensal Prevotella melaninogenica https://www.biorxiv.org/content/10.64898/2026.01.19.700327v1
January 24, 2026 at 3:19 AM
I am pleased to announce the submission of my first author manuscript, "Aerotolerant Capacity of the Lung Commensal Prevotella melaninogenica," now available as a preprint.
🧫🧫🧫
Thank you to my mentors Dr. Ariangela Kozik @drkozik.bsky.social and Dr. Gary Huffnagle at UM.
🧫🧫🧫
Thank you to my mentors Dr. Ariangela Kozik @drkozik.bsky.social and Dr. Gary Huffnagle at UM.
I am so so sorry. Sending you strength for the healing ahead.
January 2, 2026 at 7:15 AM
I am so so sorry. Sending you strength for the healing ahead.
Reposted by Dr. Ari Kozik
The latest paper from our faculty job market collaboration team @nafisajadavji.bsky.social @drkozik.bsky.social is out in Studies in Graduate and Postdoctoral Education investigating the humanities and social sciences academic job market. @futurepislack.bsky.social
www.emerald.com/sgpe/article...
www.emerald.com/sgpe/article...
December 4, 2025 at 4:12 PM
The latest paper from our faculty job market collaboration team @nafisajadavji.bsky.social @drkozik.bsky.social is out in Studies in Graduate and Postdoctoral Education investigating the humanities and social sciences academic job market. @futurepislack.bsky.social
www.emerald.com/sgpe/article...
www.emerald.com/sgpe/article...
Whatttttttttt. I just talked to them todayyyy.
November 21, 2025 at 4:12 AM
Whatttttttttt. I just talked to them todayyyy.
…deeply saddened to see this. Zara, you will be missed. This year has taken so much from us.
Zara Weinberg passed away earlier this week. She joined my lab earlier this year when her postdoc lab formally closed.
She was a brilliant scientist, supportive mentor, dear friend, avid music fan, rabid believer in public transit, open science champion, and above all just an amazing human.
She was a brilliant scientist, supportive mentor, dear friend, avid music fan, rabid believer in public transit, open science champion, and above all just an amazing human.
November 1, 2025 at 3:30 PM
…deeply saddened to see this. Zara, you will be missed. This year has taken so much from us.
Reposted by Dr. Ari Kozik
Thanks to @bwfund.bsky.social for their support! Our team (@drkozik.bsky.social @drchristsmith.bsky.social @lilyycheng.bsky.social, Ada Haagan, and Amanda Haage) has been collecting data since 2018 on the faculty job market, check out our work at: faculty-job-market-collab.org
October 2, 2025 at 1:45 PM
Thanks to @bwfund.bsky.social for their support! Our team (@drkozik.bsky.social @drchristsmith.bsky.social @lilyycheng.bsky.social, Ada Haagan, and Amanda Haage) has been collecting data since 2018 on the faculty job market, check out our work at: faculty-job-market-collab.org
Reposted by Dr. Ari Kozik
Happy Earth, Wind and Fire DAY!!!!
a man with a beard is wearing a hat and a striped shirt and saying `` do you remember '' .
ALT: a man with a beard is wearing a hat and a striped shirt and saying `` do you remember '' .
media.tenor.com
September 21, 2025 at 7:13 PM
Happy Earth, Wind and Fire DAY!!!!
Reposted by Dr. Ari Kozik
I’m just a girl, who did a spinal tap on a preschooler last week, asking you to fire RFK Jr.
a woman in a blue shirt is looking at a man in a pink shirt .
Alt: a woman in a blue shirt is looking at a man in a pink shirt , scene from Notting Hill
media.tenor.com
September 4, 2025 at 3:09 PM
I’m just a girl, who did a spinal tap on a preschooler last week, asking you to fire RFK Jr.
Reposted by Dr. Ari Kozik
My senior thesis was titled “The osteological manifestations of enslavement”
The number of parry fractures in adult and sub-adult bones was heartbreaking.
(A parry fracture is a broken ulna resulting from trying to block a direct strike to the face or upper body)
The number of parry fractures in adult and sub-adult bones was heartbreaking.
(A parry fracture is a broken ulna resulting from trying to block a direct strike to the face or upper body)
idk - branding humans like cattle, chaining them to dead bodies, feeding them to each other, filling them with gunpowder then blowing them up, burying them alive for insects to eat -- it being so bad mothers killed their children and people jumped from ships to drown
seems, like, super bad dude
seems, like, super bad dude
August 20, 2025 at 12:36 AM
My senior thesis was titled “The osteological manifestations of enslavement”
The number of parry fractures in adult and sub-adult bones was heartbreaking.
(A parry fracture is a broken ulna resulting from trying to block a direct strike to the face or upper body)
The number of parry fractures in adult and sub-adult bones was heartbreaking.
(A parry fracture is a broken ulna resulting from trying to block a direct strike to the face or upper body)
Reposted by Dr. Ari Kozik
If you applied to assistant professor positions in North America in 2024-2025, we want to hear from you as we continue to collect data on the applicant experience.
Thanks also to @bwfund.bsky.social for their support of our work!
Link to 2024-25 Applicant Survey.
und.qualtrics.com/jfe/form/SV_...
Thanks also to @bwfund.bsky.social for their support of our work!
Link to 2024-25 Applicant Survey.
und.qualtrics.com/jfe/form/SV_...
Online Survey Software | Qualtrics Survey Solutions
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und.qualtrics.com
July 29, 2025 at 2:53 PM
If you applied to assistant professor positions in North America in 2024-2025, we want to hear from you as we continue to collect data on the applicant experience.
Thanks also to @bwfund.bsky.social for their support of our work!
Link to 2024-25 Applicant Survey.
und.qualtrics.com/jfe/form/SV_...
Thanks also to @bwfund.bsky.social for their support of our work!
Link to 2024-25 Applicant Survey.
und.qualtrics.com/jfe/form/SV_...
Reposted by Dr. Ari Kozik
Are you planning to apply for faculty positions in North America this Fall? Our team of researchers have synthesized 3 years of applicant survey data to create a dashboard to allow assistant professor candidates to see where they stand.
faculty-job-market-collab.org/dashboard/
faculty-job-market-collab.org/dashboard/
Explore Our Data | Faculty Job Market Collaboration
A record of our team's research and funding.
faculty-job-market-collab.org
July 29, 2025 at 2:51 PM
Are you planning to apply for faculty positions in North America this Fall? Our team of researchers have synthesized 3 years of applicant survey data to create a dashboard to allow assistant professor candidates to see where they stand.
faculty-job-market-collab.org/dashboard/
faculty-job-market-collab.org/dashboard/