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Josh Waitzman

@jwaitz.bsky.social
1.3K followers 810 following 227 posts

Kidney doc, biochemist, and dad, taking life one kinesin-sized step at a time. He/him. Employed by Vertex Pharmaceuticals | BIDMC Nephrology | opinions my own

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Harry Wallop @harrywallop.co.uk · 02/12/2025
Great culture can save lives. Literally. Amazing letter in today’s @thetimes.com about Tom Stoppard
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Swapnil Hiremath 🍁🇨🇦 @hswapnil.medsky.social · 09/11/2025
If you read only one obit of James Watson, read this one www.statnews.com/2025/11/07/j... (From the late Sharon Begley, for @statnews.com )
statnews.com
James Watson, dead at 97, was a scientific legend and a pariah among his peers
James Watson, the co-discoverer of the structure of DNA who died Thursday at 97, was a scientific legend and a pariah among his peers.
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Nayan Arora @captainchloride.bsky.social · 07/11/2025
Shocking first high impact trial of the day. Fish oil reduces CV events in dialysis patients! #Pisces #kidneywk Simultaneous pub in NEJM www.nejm.org/doi/full/10....
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Swapnil Hiremath 🍁🇨🇦 @hswapnil.medsky.social · 07/11/2025
Today’s trials at #KidneyWk In the morning a LBCT session at 10:30 featuring PISCES (fish oil in dialysis!) LIBERATE in AKI Another AKI alerts from @fperrywilson.bsky.social A Transplant trial GLP1 and a Flozin analyses And
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ASNKidney @asnkidney.bsky.social · 06/11/2025
New to the #KidneyWk Opening Plenary: two High-Impact Clinical Trials debut this morning, presenting pivotal data in CKD and IgAN. These groundbreaking studies take the main stage at Kidney Week for the first time—you don’t want to miss this.
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Nephrology Journal Club @nephjc.bsky.social · 29/10/2025
Don’t forget to support #FOAMed and #NephJC with our annual fundraiser. Every donation helps keep us going (even as unpaid volunteers). 🫶🫶🫶 www.nephjc.com
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Josh Waitzman @jwaitz.bsky.social · 29/10/2025
Tissue is the issue #nephjc
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Josh Waitzman @jwaitz.bsky.social · 29/10/2025
2 years? I think we need a plan for a 2 week update! Should we have continuously updated recs based on when new evidence comes out? I think NCCN cancer guidelines are like this #nephjc
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Josh Waitzman @jwaitz.bsky.social · 29/10/2025
#nephjc
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Josh Waitzman @jwaitz.bsky.social · 29/10/2025
I have a hard time seeing how we progress from a smorgasbord of individually good therapies to a systematic approach as to which one(s) is (are) best for an individual patient It’s a good problem but a problem nonetheless #nephjc
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Josh Waitzman @jwaitz.bsky.social · 29/10/2025
I think it we need trials with bi-pronged approaches; it’s tough when no one company (until maybe recently) has therapies in both the immune-modulatory and general nephron preserving camps. #nephjc
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Josh Waitzman @jwaitz.bsky.social · 29/10/2025
#nephjc
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Josh Waitzman @jwaitz.bsky.social · 29/10/2025
Seems like presence/absence of diabetes belongs somewhere in this algorithm? #nephjc
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Josh Waitzman @jwaitz.bsky.social · 29/10/2025
Complement inhibitor had been published on a year before the guidelines were released! And who knows what’s going to happen at #kidneywk? Is there a plan for a v2025.2? #nephjc
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Josh Waitzman @jwaitz.bsky.social · 29/10/2025
Really important point here; what is the south Asian representation in trials v real world in IgA? #nephjc
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Josh Waitzman @jwaitz.bsky.social · 29/10/2025
#nephjc
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Josh Waitzman @jwaitz.bsky.social · 29/10/2025
Povetacicept! I’m excited to see some new IgA data from everyone at #kidneywk but ApoL1 is still my one true love #nephjc
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Josh Waitzman @jwaitz.bsky.social · 29/10/2025
Josh Waitzman—I work full-time for Vertex and part-time at BIDMC. COI: Vertex has an ongoing trial of a BAFF/APRIL inhibitor. Opinions are my own and I only know what’s public. #nephjc
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Michelle Rheault, MD @rheaultm.bsky.social · 25/10/2025
If treatments are available that can help at early stages of most causes of CKD (RAASi, SGLT2i, etc), why WOULDN’T we screen? Economics? How much does saving 20 years of dialysis get you? What about human costs? www.kireports.org/article/S246...
kireports.org
Urine screening to early diagnose young individuals with CKD: a call for action
Alport syndrome is an inherited disorder of basement membranes leading to progressive chronic kidney disease, hearing loss, and ocular abnormalities in many affected patients. When the authors started...
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Josh Waitzman @jwaitz.bsky.social · 15/10/2025
In case folks missed this, ACGME Transplant Nephrology accreditation is now a thing! If folks are Program Directors, they may need to start the process of accreditation soon. Requirements here: www.acgme.org/globalassets...
acgme.org
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Josh Waitzman @jwaitz.bsky.social · 13/10/2025
Stoners against kidney stones?
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Josh Waitzman @jwaitz.bsky.social · 13/10/2025
In this house we drink liquids and support #nephjc (Maybe I should get a backpack next time) Donate at: www.nephjc.com/news/2025/9/...
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Jeremy Berg @jeremymberg.bsky.social · 13/10/2025
This is a powerful account from a PhD student whose fellowship was terminated by NIH because it was part of a "diversity" program without any other considerations or understanding of what the program or the students were actually doing. undark.org/2025/10/09/o... 1/2
undark.org
NIH Student Grant Cancellation Will Weaken Scientific Innovation
The termination of federal F31 diversity fellowships puts many graduate students in a bind — and U.S. science at risk.
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Josh Waitzman @jwaitz.bsky.social · 13/10/2025
Pre #nephjc bias: Team pro protein All these studies are deeply confounded and based in the pre-kidney-preserving therapy era. Let them eat steak! (Actually, let them eat vegetable sources of protein, but beans, lentils, and soy don’t rhyme with cake)
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Josh Waitzman @jwaitz.bsky.social · 13/10/2025
Loved watching @kidneyrebel.bsky.social grand rounds at @nu-nephrology.bsky.social!! Thank you for the PKD mega blocks shout out #nephjc (1), happy to be at the right overlap in my Venn diagram (2), and trying to build toward a medical specialty in a hill (3) www.youtube.com/watch?v=RlTC...
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Joel Topf @kidneyboy.bsky.social · 11/10/2025
New episode of Channel Your Enthusiasm, part 2 of 3 on metabolic acidosis. Episode with chapter art, chapters, and fully referenced www.rosebook.club/episodes/202...
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Josh Waitzman @jwaitz.bsky.social · 13/10/2025
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Josh Waitzman @jwaitz.bsky.social · 13/10/2025
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Ian L Morgan @ianlmorgan.bsky.social · 10/10/2025
My op-ed just came out discussing how NIH leadership is failing early career researchers and, importantly, how we can push back and take our future into our own hands.
the-scientist.com
NIH Leadership Is Failing Early Career Researchers
Halted training programs, funding chaos, and hiring freezes jeopardize advancement options for early career researchers.
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Sarah Melville @sarahkmels.medsky.network · 09/10/2025
Thought-provoking, well-written @nejm.org blog article by Dr. Paul Farmer's wife on the (third) anniversary of his passing: www.nejm.org/doi/10.1056/... cc: @jwaitz.bsky.social #nephjc summer book club chat
nejm.org
In Paul Farmer’s Beautiful Garden of Global Health Equity: Reflections on the Third Remembrance of His Passing | NEJM
On the third anniversary of Paul Farmer’s death, Didi Bertrand Farmer reflects on his “beautiful garden” — a vision of social justice in health care, with deep roots in the fertile soil of equity.
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Brian Rifkin @brianrifkin.bsky.social · 06/10/2025
Perhaps we can help! Great commentary by @nephroseeker.bsky.social www.nephjc.com/news/2025/30...
nephjc.com
Immune tolerance in kidney transplantation: from first principles to clinical engineering — NephJC
A commentary putting the chimerism and immune tolerance in perspective
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Edward Nirenberg @enirenberg.bsky.social · 06/10/2025
rdcu.be/eJHTr rdcu.be/eJHU8 www.sciencedirect.com/science/arti... www.annualreviews.org/content/jour...
rdcu.be
The regulation and differentiation of regulatory T cells and their dysfunction in autoimmune diseases
Nature Reviews Immunology - In this Review, the authors discuss the origins of regulatory T (Treg) cells in the periphery and the mechanisms by which Treg cells are induced, as well as the...
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Josh Waitzman @jwaitz.bsky.social · 06/10/2025
I guess this means it’s time for me to try to understand what Tregs do… (Thanks @enirenberg.bsky.social for the great explainer!)
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International Society of Glomerular Disease @isgd.bsky.social · 03/10/2025
PARASOL Project is expanding focus to include biomarkers & endpoints in APOL1 kidney disease and primary MN as well as FSGS. Learn more: eu1.hubs.ly/H0nr8Lv0 @tobias-b-huber.bsky.social @miktmc.bsky.social @jarcyzphd.bsky.social @ohiostatemed.bsky.social @utoronto.ca @nu-nephrology.bsky.social
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PARASOL Project Expands Focus to APOL1, Membranous Nephropathy
PARASOL Project expands to focus on APOL1 kidney disease and primary membranous nephropathy, aiming to improve clinical trial endpoints for these conditions.
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International Society of Glomerular Disease @isgd.bsky.social · 25/09/2025
Today is #C3GAwarenessDay! At ISGD, we stand with people living with this rare kidney disease. As a medical society for #GlomerularDisease experts, we're committed to raising awareness and moving the science forward to bring more hope and solutions to the C3G community. #C3G #ISGD
Dark Teal background with white circle in middle with yellow border. In the circle it says C3G Awareness Day. Under the circle there is a hashtag #C3GAwarenessDay, and the text Every rare kidney disease deserves to be seen.
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Swapnil Hiremath 🍁🇨🇦 @hswapnil.medsky.social · 24/09/2025
Excellent thread below I will also plug this talk by Paola Romagnani on podocytopathies youtu.be/bRMeqaGgA9I?... #GlomCon #NephGR
youtu.be
Personalized Therapy for Podocytopathies with Prof. Paola Romagnani
YouTube video by Ottawa Nephrology
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Josh Waitzman @jwaitz.bsky.social · 24/09/2025
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Josh Waitzman @jwaitz.bsky.social · 17/09/2025
Agree 100% that maintenance dialysis pts and post transplant pts deserve better quality of evidence than we have. #nephjc
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Josh Waitzman @jwaitz.bsky.social · 17/09/2025
People’s practice habits are so hard-wired in training. Lisinopril and losartan are still the most prescribed ACEi and ARB. #nephjc
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Josh Waitzman @jwaitz.bsky.social · 17/09/2025
Thanks for a great discussion! #nephjc
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Jordy Cohen @jordybc.bsky.social · 17/09/2025
#nephjc
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Josh Waitzman @jwaitz.bsky.social · 17/09/2025
Right: more aldo, more combo meds, advocating for GLP1 as part of lifestyle change Wrong: 130=/=120, even stronger aldo rec, even stronger GLP1 rec so that insurance will cover it #nephjc
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Josh Waitzman @jwaitz.bsky.social · 17/09/2025
If someone figures out how to change nephrology practice, please let me know #nephjc
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Jordy Cohen @jordybc.bsky.social · 17/09/2025
Yes! Slide care of Paul Whelton at this year’s #Hypertension25 #nephjc
Cognitive impairment data
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Josh Waitzman @jwaitz.bsky.social · 17/09/2025
If someone feels bad on multiple different agents tried serially to get them below 140 that’s a special case. I do wonder if there’s an argument to look for carotid stenosis or similar in patients like this. #nephjc
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Josh Waitzman @jwaitz.bsky.social · 17/09/2025
Yes. I worry we’ve told folks “old people can ride higher” for a long time, and it’s fighting a lot of therapeutic inertia to target a lower BPs goal to prevent dementia. #nephjc
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Josh Waitzman @jwaitz.bsky.social · 17/09/2025
MORE! And by MORE! I mean LESS (systolic BP) #nephjc
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Josh Waitzman @jwaitz.bsky.social · 17/09/2025
But each has benefits like a fine wine: -The uric acid lowering of losartan -The longest half life of telmisartan -The bonus migraine prophylaxis of candesartan #nephjc
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Josh Waitzman @jwaitz.bsky.social · 17/09/2025
Love the spotlight that combo agents get here. #nephjc
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Josh Waitzman @jwaitz.bsky.social · 17/09/2025
Olmesartan’s more effective and comes in a combo w amlodipine. pmc.ncbi.nlm.nih.gov/articles/PMC... #nephjc
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