Marcin L Pekalski
@MarcinPeka
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life scientist: molecular biologist, immunologist, cell ecologist, macrophage behaviorist, phage breeder and wild microbiome archivist;
University of Oxford, UK
Joined March 2016
@assert_pub @ProfJohnATodd
https://t.co/qfVaVysMDs We propose #T1D is primarily caused by immune responses against microbial-enzyme transketolase which contains key insulin-epitope. Our findings link microbial metabolism of polysaccharides, dysbiosis and antigen-specific immune responses to insulin.
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Microplastics are everywhere. This timely editorial in @NatureMedicine calls for an urgent deeper understanding of the effects of these particles on human health: https://t.co/vPLvMhFwIr
nature.com
Nature Medicine - As evidence emerges describing the accumulation of small plastic particles in various organs and tissues of the body, a much deeper understanding of the effects of these particles...
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When it comes to #thymus protection against autoimmunity, producing normal thymic regulatory T cells is more important than deleting self-reactive T cells, @UZH_en researchers conclude from studies in mice. Check out the 2021 research: https://t.co/0l7Mh9Yn7j
#WeekendReads
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Smoking changes adaptive immunity with persistent effects. 🚬
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Get it while it's hot! The newest @NatureComms publication on thymic epithelial cells by @FabianJKlein from the Holländer lab at @IdrmOxford @UniofOxford is now online: https://t.co/h0ngtGtdgc
nature.com
Nature Communications - T cell development requires functionally diverse thymic epithelial cell (TEC) populations performing specific functions. Here, using massively parallel flow cytometry and...
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#CuttingEdge from @MelicharLab and John H. White @mcgillu | #Autoimmune regulator #Aire is a coactivator of the #VitaminDReceptor
#ReadTheJI #immunology 👉 https://t.co/1RGiSA0Ie4
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New research suggests antimicrobial used to promote livestock growth breeds bacteria more resistant to our natural defences. These findings add to the current body of evidence on the negative impact of antibiotics beyond the gut: https://t.co/kxGRIayUT2
theguardian.com
Study suggests antimicrobial used to promote livestock growth breeds bacteria more resistant to our natural defences
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⚡️Residents of Kherson region, save your pets from drowning - the Ministry of Internal Affairs of Ukraine "If you evacuate, take care of pets: unchain them, let them out of their cages or, if possible, take them with you. Give the furry ones a chance to be saved," the message
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Do you work in biomedical #research? Do you also question your #antibodies? Dodgy antibodies waste time & $$$ + drive the reproducibility crisis. Let's talk about it! We've validated >50❗️Tau antibodies: https://t.co/KFbcYOoFUB Here's what we learnt & why it matters A 🧵 1/n
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In Australia, the southern greater glider population’s habitat could be destroyed by logging. "To protect this species, we must prevent further logging of Australia’s native forests," argues a new #LetterToScience. https://t.co/eDid9KkWFT
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By 2050, an estimated 152 million people will affected by dementia globally. @uk_biobank ’s repeat imaging project could provide crucial information that may assist with diagnosis and treatment of #Alzheimers and related conditions
cziscience.medium.com
What is the connection between genes, lifestyle, and disease? That’s the question driving most biomedical research today.
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We've been robbed The wildlife we have today is merely a wisp of it should be
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Wax worm saliva can oxidise and depolymerise polyethylene, one of the most produced and sturdy polyolefin-derived plastics @NatureComms #plasticpollution
nature.com
Nature Communications - The crucial first step in the biodegradation of polyethylene plastic is oxidation of the polymer. This has traditionally required abiotic pre-treatment, but now Bertocchini...
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Here is how Finland is designing the perfect school 🇫🇮
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The tongue is a unique barrier organ constantly exposed to environmental pathogens. Researchers have mapped the immune cell network of the tongue during development, health, and disease. https://t.co/EC2YR5fq9q
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In the Zagros mountains of Iran, perfectly blended into the gypsum and limestone rocks is a snakes entire body but the tip of its tail which resembles a spider, luring insectivorous birds within striking range. This is the spider-tailed horned viper 1/đź§µ https://t.co/VKZKLttVRg
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Check out this incredible avalanche footage from the Tian Shan mountains in Kyrgyzstan. Luckily, everyone survived. Account: https://t.co/amo4Bh6z8I
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A new study in mice suggests that a majority of IgA in the gut is selected to recognize and react to distinct gut bacterial species instead of demonstrating polyspecificity. @IcahnMountSinai @jeremiahfaith1
https://t.co/8I6Z1Rrmo9
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Very fascinating ecology of IL-2.
New research from @LabListon investigates the #cytokine network of #IL2. Using a new genetic tool, the authors show that response to IL2 depends on the cellular source. This explains old mysteries of clinical adverse events and provides new targets https://t.co/Mm8vQiakwr
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Interesting! Extinction of microbiomes changes fine-tuned ecology of the immune responses to commensals. This is particularly important during infant weaning when regulatory T cells to self epitopes are amplified by commensals mimics. See example for #T1D
medrxiv.org
Type 1 diabetes (T1D) is caused by a T-cell-mediated destruction of insulin-secreting pancreatic islet β cells. The T1D-predisposing human leukocyte antigen (HLA) class II molecule, DQ8, binds and...
Excited to announce this work is out today in @ScienceMagazine- “Robust Variation in Infant Gut Microbiome Assembly Across a Spectrum of Lifestyles.” We analyzed feces from infants across the globe to understand how lifestyle affects the early microbiome
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