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Ioanna Chatzigiannidou

@ioannachatzig

Microbial ecology 🦠 | Microbiome πŸ‘€ πŸ‘Ά 🧬 | Postdoc @ DTU

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26.12.2024
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Latest posts by Ioanna Chatzigiannidou @ioannachatzig

@amiposts.bsky.social journals have a Bluesky account! Follow for updates! πŸ“ƒ
#MicroSky

19.02.2026 12:03 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Are you an #EarlyCareerScientist ready to showcase your work?

#LAMECS2026 is a fantastic opportunity to present your first talk or poster, build confidence and network.

Submit your abstract by 22 March 2026: https://appliedmicrobiology.org/ems-event-calendar/lamecs-2026/submit-your-abstract.html

17.02.2026 12:30 πŸ‘ 4 πŸ” 4 πŸ’¬ 1 πŸ“Œ 0
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πŸ‘©β€πŸ”¬On this #InternationalDayOfWomenAndGirlsInScience, we celebrate the women who opened doors and recommit to work together to ensure every girl in STEM can rise without barriers! #WomenInSTEM #WomenInScience

11.02.2026 12:25 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
Audience attentively listening to speaker at the Women Microbiologist Network from Annual Conference 2025.

Audience attentively listening to speaker at the Women Microbiologist Network from Annual Conference 2025.

On International Day of Women and Girls in Science πŸ”¬πŸ‘©β€πŸ”¬
We’re launching the Women Microbiologists Network: a member-led networking and discussions event for women in microbiology by Dr. Enas Newire.
Read the news story and join:
πŸ”— https://microb.io/4ax5M5I

11.02.2026 09:00 πŸ‘ 16 πŸ” 12 πŸ’¬ 1 πŸ“Œ 3
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In #Microbiome

πŸ”Profiling the microbial plasmidome and resistome on 78 samples across European urban water systems

🦠Bacteroides emerged as a major driver of antimicrobial resistance dynamics across different wastewater treatment processes

➑️ doi.org/qn2v #OpenAccess

28.01.2026 09:20 πŸ‘ 5 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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Early-life colonization by aromatic-lactate-producing bifidobacteria lowers the risk of allergic sensitization - Nature Microbiology Vaginal birth, exclusive breastfeeding and early contact with siblings promote colonization of the infant gut with bifidobacteria capable of producing aromatic lactates, a microbial and metabolite sig...

Gut microbiota has previously been linked to immune developement and allergies. But what is the mechanism behind? Find more about the role of Bifidobacteria 🦠, aromatic lactates and immune resilience in babies πŸ‘Ά in the recent paper from our group @natmicrobiol.nature.com
shorturl.at/peaI1 #microsky

20.01.2026 15:34 πŸ‘ 11 πŸ” 3 πŸ’¬ 2 πŸ“Œ 0

Very sad news πŸ˜”

16.01.2026 21:26 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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We’re excited to launch our 2026 grants portfolio, designed to support microbiologists at every stage of their journey.

πŸ”Ž Explore all our 2026 grants:
appliedmicrobiology.org/funding.html

12.01.2026 16:16 πŸ‘ 4 πŸ” 3 πŸ’¬ 2 πŸ“Œ 0
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Ready to go! Exciting day for the postdocs at DTU Bioengineering as our first Postdoc Day is starting πŸ§‘β€πŸ”¬ #postdoc #academiccareer

27.11.2025 09:10 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
A graphic with the title β€œTest your antibiotic knowledge!” followed by a pill and question-mark icon. Below, a speech bubble labelled β€œFalse” with a red X reads: β€œAntibiotics are safe to use without a prescription.” Another speech bubble labelled β€œTrue” with a green checkmark reads: β€œOnly use antibiotics if prescribed. Taking antibiotics when you don’t need them can lead to resistance and side effects.”

A graphic with the title β€œTest your antibiotic knowledge!” followed by a pill and question-mark icon. Below, a speech bubble labelled β€œFalse” with a red X reads: β€œAntibiotics are safe to use without a prescription.” Another speech bubble labelled β€œTrue” with a green checkmark reads: β€œOnly use antibiotics if prescribed. Taking antibiotics when you don’t need them can lead to resistance and side effects.”

It’s World #AMR Awareness Week.

Did you know misusing antibiotics leads to drug resistance and side effects?

Learn about #AntimicrobialResistance (AMR) πŸ‘‰bit.ly/AMRweek2025

18.11.2025 06:00 πŸ‘ 158 πŸ” 52 πŸ’¬ 2 πŸ“Œ 4
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AMR is more complicated than a lack of drugs Later this month (Nov 18–24) is World AMR Awareness Week (WAAW), the annual reminder of this long smouldering crisis in modern health care. This is the first year with the new name as it was formerly ...

"Too often #AMR is framed as an immense although conceptually simple challenge: delay resistance to current drugs and produce new drugs. But we need to go beyond this, we need to pull every lever at our disposal to minimise infection even before we turn to drugs."

www.thelancet.com/journals/lan...

13.10.2025 08:52 πŸ‘ 27 πŸ” 17 πŸ’¬ 1 πŸ“Œ 2
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πŸ₯›El #kΓ©fir modula receptores intestinales implicados en la respuesta del sistema inmunitario

πŸ”¬Investigadoras del @iatacsic.bsky.socialΒ demuestran en ensayos β€˜in vitro’ que esta bebida regula distintas vΓ­as de seΓ±alizaciΓ³n inmune a nivel intestinal

πŸ‘‰ https://f.mtr.cool/amstnygbml

03.11.2025 10:11 πŸ‘ 15 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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Nanobody-based recombinant antivenom for cobra, mamba and rinkhals bites - Nature A recombinant antivenom composed of eight nanobodies provides broad protection against venom-induced lethality and dermonecrosis in mice challenged with venoms from cobras, mambas and rinkha...

An antivenom combining eight alpaca- and llama-derived nanobodies neutralizes toxins from a broad range of snake venoms #NBThighlight www.nature.com/articles/s41...

31.10.2025 12:25 πŸ‘ 23 πŸ” 4 πŸ’¬ 1 πŸ“Œ 0
A Roadmap for equitable use of public microbiome data published in Nature Microbiology by The Data Reuse Core team @alexjprobst.bsky.social @lhug.bsky.social @environmicrobio.bsky.social Cristina Moraru @geomicrosoares.bsky.social @folker.bsky.social Anke Heyder 

and a QR code that takes you to the webpage of the manuscript

A Roadmap for equitable use of public microbiome data published in Nature Microbiology by The Data Reuse Core team @alexjprobst.bsky.social @lhug.bsky.social @environmicrobio.bsky.social Cristina Moraru @geomicrosoares.bsky.social @folker.bsky.social Anke Heyder and a QR code that takes you to the webpage of the manuscript

πŸ§ͺ🦠πŸ–₯οΈπŸ§¬πŸ§«πŸ”¬ The Roadmap for equitable use of public microbiome data -including the Data Reuse Information Tag (DRI)- by the #DataReuseConsortium.
Must read if you use or produce microbiome data!

Kudos to the Data Reuse Core Team for their hard work!

doi.org/10.1038/s415...

26.09.2025 11:24 πŸ‘ 19 πŸ” 9 πŸ’¬ 1 πŸ“Œ 1
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The #EESMicrobiome in Heildeberg has been a blast! Inspiring talks and top discussions with peers 🀩 and I got to present some of our latest research at the Disease Systems Immunology group regarding 🌱fiber and 🦠 gut microbes!
@events.embl.org

26.09.2025 12:03 πŸ‘ 3 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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🦠🌍 Welcome to Day 2 of #EESMicrobiome
We’re kicking things off with Session 2: Functional insights into microbial communities 🧬

πŸ”Ή First talk:
β€œSmall proteins of the human microbiome and beyond”
by Luis Pedro Coelho – Queensland University of Technology

Stay tuned for more exciting science!

17.09.2025 07:52 πŸ‘ 13 πŸ” 2 πŸ’¬ 2 πŸ“Œ 0

Thank you very much! Highly appreciate the positive comments from someone with your knowledge in the specific field 😁

04.09.2025 13:29 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Temporal dynamics and microbial interactions shaping the gut resistome in early infancy Nature Communications - Here the authors show that antibiotic resistance genes peak in the gut at the age of 6 months, and that beneficial bifidobacteria produce aromatic lactic acids that actively...

Nice paper on the temporal dynamics of early infancy. Once again, it was shown that Escherichia & Klebsiella correlate with higher ARG load, and their abundance is in turn negatively associated with Bifidos. Kudos to the authors for the excellent paper!
rdcu.be/eDRPa

03.09.2025 08:39 πŸ‘ 2 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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Temporal dynamics and microbial interactions shaping the gut resistome in early infancy - Nature Communications Here the authors show that antibiotic resistance genes peak in the gut at the age of 6 months, and that beneficial bifidobacteria produce aromatic lactic acids that actively inhibit antimicrobial…

Temporal dynamics and #microbial interactions shaping the #gut #resistome in early infancy ...

| #antimicrobialresistance | #AMR | #antibiotic | #genes | #Ecoli | Via @nature.com

01.09.2025 13:03 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

This sounds like a very cool project and, at the same time, very relevant research! Best of luck!

02.09.2025 07:23 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Temporal dynamics and microbial interactions shaping the gut resistome in early infancy - Nature Communications Here the authors show that antibiotic resistance genes peak in the gut at the age of 6 months, and that beneficial bifidobacteria produce aromatic lactic acids that actively inhibit antimicrobial resi...

🍼 Antibiotic resistance starts early

A study of infant gut bacteria found antibiotic resistance genes appear within the first week of life, peaking at 6 months.

πŸ”— www.nature.com/articles/s41...

#SciComm #Microbiome πŸ§ͺ

01.09.2025 18:14 πŸ‘ 37 πŸ” 9 πŸ’¬ 1 πŸ“Œ 0

However, E. coli and other ARG-rich species can be controlled through πŸ§ͺ aromatic lactic acids = metabolites produced by early life associated bifidobacteria! The same bifidobacteria species that have been previously linked to health and are boosted by breastfeeding 🀱

01.09.2025 14:39 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

We followed infants from birth till 5 years of life, and found that 🧬 antimicrobial resistance genes are most abundant at 6 months. The early life resistome was linked to the deliver mode and was largely driven by E. coli 🦠

01.09.2025 14:34 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Temporal dynamics and microbial interactions shaping the gut resistome in early infancy - Nature Communications Here the authors show that antibiotic resistance genes peak in the gut at the age of 6 months, and that beneficial bifidobacteria produce aromatic lactic acids that actively inhibit antimicrobial resi...

πŸ‘Ά Curious about infant gut microbiota and 🧬 antimicrobial resistance? Have a look at our recent publication @natcomms.nature.com
#microbiome #infantgut #AMR
www.nature.com/articles/s41...

01.09.2025 14:32 πŸ‘ 15 πŸ” 5 πŸ’¬ 1 πŸ“Œ 0

Thrilled to share our #Comment in @natmicrobiol.nature.com
A collaborative effort by a fantastic group of researchers across disciplines!

πŸ’¬We explored how interdisciplinary microbiology can thrive when early-career researchers are included and supported.

πŸ“„ doi.org/10.1038/s415...

27.08.2025 08:21 πŸ‘ 5 πŸ” 4 πŸ’¬ 1 πŸ“Œ 0
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Unveiling soil microbial diversity through ultra‐deep short‐read metagenomic sequencing and co‐assembly By combining ultra-deep short-read shotgun metagenomic sequencing with 5-sample co-assembly across 600 agricultural soil samples, we significantly enhanced the representation and recovery of microbia....

Soil is the most diverse microbial ecosystem, which makes microbiome studies with shotgun sequencing extremely tricky!
In our last paper @imetascience.bsky.social, we show that co-assembly increases gene and genome recovery
tinyurl.com/59t4z8fh
#soilmicrobiome #metagenomics

26.08.2025 13:59 πŸ‘ 4 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

@theipcinfo.bsky.social warns: the worst-case scenario of #famine is unfolding in #Gaza.

Mass starvation, malnutrition, and disease are driving a rise in hunger-related deaths.

@who.int calls for urgent access for food and medical aid into Gaza at scale.

Ceasefire.
Peace is the best medicine!

29.07.2025 10:17 πŸ‘ 81 πŸ” 64 πŸ’¬ 3 πŸ“Œ 2

Diving into the HMO and fiber degradation potential of the infant gut microbiome during weaning πŸ‘Ά great work led by Yunjeong So at Maher Abou Hachem’s lab and I am happy to be part of it! #microbiome

26.07.2025 07:20 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Droplet microfluidics for single-cell studies: a frontier in ecological understanding of microbiomes Abstract. Recent advances in single-cell technologies have profoundly impacted our understanding of microbial communitiesβ€”shedding light on cell-to-cell va

New Review Out!
We explore how droplet microfluidics is opening new doors in microbial ecology - enabling single-cell functional insights into growth, metabolism & interactions.
πŸ”— doi.org/10.1093/fems...
#MicrobialEcology #DropletMicrofluidics #Microbiology

24.07.2025 12:15 πŸ‘ 18 πŸ” 10 πŸ’¬ 0 πŸ“Œ 0
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Extraordinary keynote lecture by Prof. Chris Greening @greening.bsky.social about Microbial oxidation of atmospheric trace gases: from enzymes to ecosystems.
#FEMS2025 @femsmicro.org

16.07.2025 10:08 πŸ‘ 14 πŸ” 4 πŸ’¬ 2 πŸ“Œ 0