Tatiana Prowell, MD

My grandpa used to say “It’s not what you know, it’s who you know.” The 1st time I was old enough to get it, I said “That’s not fair!” He said “Exactly! So make it your life’s work to ensure everyone meets each other.” He’s 2 decades gone, but I’m still at it. #advocacy #MedEd

@PatrickHwuMD @hopkinskimmel @JohnsHopkins @HopkinsMedicine Very kind of you, @PatrickHwuMD! 😊

#FollowFriday Give a follow to Tatiana Prowell, MD, Associate Professor of Oncology at the Johns Hopkins Kimmel Comprehensive Cancer Center. @hopkinskimmel @JohnsHopkins @HopkinsMedicine She is helping shape the future of breast cancer care through research, clinical expertise and national leadership! @tmprowell

@DrHBurstein @stolaney1 @DanaFarber I love this so much! 😍#HCWvsHunger

One of the best new things @DanaFarber is our Food Basket, open to all of our patients who face food insecurity or need a helping hand. Healthy groceries, available daily, free of charge, 1st Floor of Smith Bldg. Putting the 'comprehensive' in comprehensive cancer center.

1/10 I am incredibly proud to share our latest study, published today in @NatureComms, a follow-up to our 2024 paper on skeletal muscle abnormalities in long COVID. Open access: nature.com/articles/s4146… #LongCOVID #MECFS

The Society for Vascular Surgery mourns the passing of Bruce A. Perler, MD, MBA, FACS, DFSVS, a past president of SVS and a leader whose contributions helped shape the future of vascular surgery. During his 44-year tenure as a surgeon at The Johns Hopkins Hospital, Dr. Perler established the Division of Vascular Surgery and Endovascular Therapy. He trained generations of surgeons in the art and science of vascular surgery. His humble demeanor, prodigious skill and evident mastery are cherished by all the Halsted residents who knew him and live on as his legacy in American surgery. Dr. Perler was internationally recognized for his clinical expertise in carotid arterial disease, having delivered nearly 400 lectures nationally and internationally. His hundreds of publications, research and chapters have been cited over 12,000 times. In addition, he served as Senior Editor of the Journal of Vascular Surgery, co-edited three editions of Rutherford’s Vascular Surgery and Endovascular Therapy and held leadership roles with the American Board of Surgery and several vascular societies. Dr. Perler received the 2025 SVS Lifetime Achievement Award, the Society’s highest honor, recognizing a career defined by exceptional clinical care, academic leadership and enduring contributions to the advancement of vascular surgery. This was his third lifetime achievement awarded by his colleagues in surgical and interventional societies, a fitting tribute for a career that reflected not only clinical excellence and international leadership, but a deep understanding of the evolution of the field of vascular surgery over the past decades. Dr. Perler is survived by his wife Patti and his daughter Rachel. His son Mason passed away in 2024. SVS extends its deepest condolences to his family, friends and colleagues.

> 1 in 6 caregivers (parents, partners, children) navigate complex insurance processes to get medical care for their loved ones. Caregiver effort via administrative burden is an uncaptured 👎 effect of #priorAuthorization -another reason to #fixpriorAuth. jamanetwork.com/journals/jaman…

@itsnot_pink @swaggsheila1 I miss her. And I’m so happy you’re doing Vail! ❤️

Happy heavenly birthday @swaggsheila1! Thinking of this wonderful friend who gave so much to research and trials as I travel to the Vail Workshop.

@cspramesh Please accept my condolences, @cspramesh. ❤️‍🩹

Extremely sad at losing a colleague today. 😥

Maura L. Gillison, MD, PhD (1965–2026): A visionary trailblazer who transformed how we understand head and neck cancers, while mentoring and caring for many acsjournals.onlinelibrary.wiley.com/doi/10.1002/cn…

Incidence of overall & serious adverse events was same in both ensitrelvir & placebo in the phase 3 SCORPIO-PEP trial. Be aware of potential for hypersensitivity reactions & drug drug interactions (CYP3A strong inducers & CYP3A substrates), & avoid use in pregnancy. Stay well!

#MedTwitter 🧵 🇺🇸 wastewater sampling shows #SARSCoV2 levels are high again. There is now an FDA-approved med (ensitrelvir/Xocova) for postexposure prophylaxis of household contacts (ages 12+). Taken within 3d, it ⬇️ risk of symptomatic #COVID19 by 67%. NNT to prevent 1 case: 17.

@StevePhillipsMD @subatomicdoc It’s true. ❤️‍🩹

The best doctors, the old guard, who view medicine as a calling rather than a business, are quietly retiring. There's a gentleness & decency about them that's hard for me to explain but impossible to miss. Medicine is losing the best part of itself.

Good morning @AmericanAir I’ve seen a post of an allergic reaction to carrot hummus served in flight, afterwards flight attendant reportedly confirmed to passenger it contained cashew. Because most people would NOT expect in a hummus-style item, could you clarify whether cashew is in hummus and how passengers can access allergen details for items like this? We want to alert folks not to eat if they have a cashew allergy so accuracy is important. So appreciate your help ASAP

@DrYukselUrun Well said!

@tmprowell Thank you, @tmprowell One of medicine’s quiet privileges is simply being there when someone needs help most. ❤️

🇹🇷İstanbul - 🇺🇸ABD uçuşunda bir yolcu rahatsızlandı. Gerekli müdahaleyi yaptık ve yolculuğunu sağlıklı tamamladı. Böyle anlar bize şunu hatırlatıyor: Kurumlar hazırlıklı olmalı. Hekimler de ihtiyaç olduğunda bilgilerini insan hayatı için paylaşmalı. Kabin ekibine güleryüzlü iş birlikleri ve destekleri için teşekkür ederim. @TurkishAirlines @saglikbakanligi @sagliklicozum

@Nicole_Paulk @AMJohnston1315 She’s fierce, that one

@tmprowell @AMJohnston1315 WHEW lordy this is goooooooood 👏👏

Breathtaking essay by @AMJohnston1315 on the words we use to talk about #MetastaticBreastCancer. I’m so grateful to learn from patient advocates, though I’d give anything for us not to need words for #MBC. ❤️‍🩹 #bcsm MBC Is Not a Journey nohalfmeasures.blog/2026/07/23/it-… via @AMJohnston1315

@AMJohnston1315 Thank you for doing a third shift to educate us all on top of living your life & doing the work of being a patient. Appreciate you, @AMJohnston1315. #bcsm #OncTwitter

@tmprowell Thank you for your kind words and for sharing my musings. 🫶🏻

One work related event to share is this recent publication with my colleagues on Long COVID. It hurt to write but it was necessary: hearing about the challenges such patients received navigating the health system was alarming. And at times, appalling. And we need to do better. Now, working on changing this. pubmed.ncbi.nlm.nih.gov/42367370/

@PatrickHwuMD Remembering this study of vegan vs. keto diets and how rapidly diet altered the immune system. I hope we will eventually be able to test & prescribe an individualized diet that is proven to improve patient outcomes in oncology. nih.gov/news-events/ne…

🧬 #ScienceSaturday ❓Could what we eat influence how well cancer immunotherapy works? Researchers have long observed an “obesity paradox” in cancer care: although obesity is linked to many health risks, some patients with a higher body mass index appear to respond better to immune checkpoint inhibitors. A new study explored whether body weight itself is responsible, or whether diet and the gut microbiome may offer a better explanation. ➡️ Researchers tested 12 different diets in mouse models treated with anti-PD-1 therapy. They found that treatment response was more closely associated with the animals’ diet and gut bacteria than with body weight, body fat or other measures of metabolic health. ➡️ Some diets created a gut environment that supported a stronger immune response against tumors. These dietary changes altered the types of bacteria living in the gut and the substances, or metabolites, those bacteria produced. ➡️ One bacterium that stood out was Lactobacillus johnsonii. On its own, the bacterium modestly improved the response to immunotherapy. A supportive diet also helped. But when the bacterium and diet were combined, they produced a much stronger response than either did alone. ➡️ The researchers also identified a bacterial metabolite called desaminotyrosine, or DAT, that appeared to help activate tumor-fighting T cells. These immune cells produced stronger signals and became better equipped to attack cancer after anti-PD-1 treatment. ➡️ Interestingly, changing the animals’ diets could reshape the microbiome and influence treatment response within days, before major changes in weight occurred. This suggests the benefit may come from how food affects gut bacteria, rather than from obesity itself. ➡️ The team also transferred gut bacteria from human patients into mice. Even microbiota from a patient who had not responded to immunotherapy could support a better response when paired with a favorable diet, showing how strongly diet may shape the activity of the microbiome. 💡 Why this matters: The study helps connect several areas of cancer research, nutrition, the microbiome, microbial metabolism and immunotherapy. In the future, researchers may be able to develop carefully designed diets, bacterial therapies or microbial metabolites that help prepare the immune system to respond more effectively to treatment. @Nature @NatureMedicine @mcgillu @MIM_immuno @CRCHUM @chumontreal @UMontreal @uMontreal_news @med_umontreal @LysDesharnais @mcgillgci Read more: nature.com/articles/s4158…

My grandma went to nursing school when she was 46, with 4 kids, and became a nurse. My mom went to medical school at 37, with 3 kids, and still practices primary care in an underserved community. It's not too late for you.