Dr. Katariina Pärnänen

Group leader at the University of Helsinki. Antibiotic resistance, metagenomics, bioinformatics, and big data.

[Dr. Katariina Pärnänen @Kata_MMP]

🚨 Our new study on 14,641 gut metagenomes:
🧬 Women have 9% more antibiotic resistance genes (ARGs) than men
🌍 Difference not observed in LMICs
🧑 ARG differences appear in adulthood
📖 https://t.co/sZZ9KcFbD0
#AMR #GenderHealth #Microbiome #GlobalHealth

[Dr. Katariina Pärnänen @Kata_MMP]

The Relationship Between Gut Microbiota During Pregnancy and the Level of Postpartum Adiposity - Houttu - 2025 - MicrobiologyOpen - Wiley Online Library https://t.co/7myhpAkTxe

[Dr. Katariina Pärnänen @Kata_MMP]

Using wastewater surveillance to investigate community-level differences in antibacterial resistance in a major urban center, USA | Applied and Environmental Microbiology https://t.co/TuwlN7eALr

[Dr. Katariina Pärnänen @Kata_MMP]

Big thanks to the FINRISK cohort participants and all the collaborators and co-authors!

[Dr. Katariina Pärnänen @Kata_MMP]

Our article in @NatureComms released in July! What socio-demographic, #microbiome, and health variables associate with higher #AMR?
1) Being a woman & high-income class
2) Poultry and salad
3) #Antibiotic use is most important
Read the full article here:
https://t.co/YY1F18k5WK

[Dr. Katariina Pärnänen @Kata_MMP]

@zhe_pan_APC @VanSinderenLab @Pharmabiotic Nice paper!

[ZHE PAN @zhe_pan_APC]

Happy to share my latest paper published @VanSinderenLab @Pharmabiotic
Full article: Breastfeeding and the milk resistome shape the establishment and transmission of antibiotic resistance genes in the infant gut microbiome https://t.co/g2Jn32nOJ5

[Dr. Katariina Pärnänen @Kata_MMP]

Kansainvälinen vertailu paljasti antibiooteille vastustuskykyisten bakteerien erot sukupuolten välillä https://t.co/rkPuMkqT2R

[Torsten Seemann @torstenseemann]

NCBI Datasets: Easily Access and Download Sequence Data and Metadata https://t.co/sBIjOte8x2 via @ncbi

[Prof. Meghan Azad, PhD @MeghanAzad]

✨ Job Alert: Bioinformatician & Data Manager ✨

Support our research on milk, microbiomes & child health!

📍Remote (within 🇨🇦) or In-person
💵 $74K–$107K + benefits
⏱️ Full Time
🎓 MSc & 4+ yrs experience req'd

Apply at: https://t.co/bJVLrURUqZ (#38485)

Pls share! 🙏🏻

[Dr. Katariina Pärnänen @Kata_MMP]

9/9 Take home message! Recognizing gender and age-specific differences in AMR is essential for research and for creating fair healthcare strategies. For more details, data, and code, read the full study here: https://t.co/tpWfSm0MiG

[Dr. Katariina Pärnänen @Kata_MMP]

8/9 Age and geography were significant factors associated with resistome composition, with infants and the elderly showing higher ARG loads and diversity. This pattern underscores the impact of life stages on AMR. https://t.co/BfehpkT9ZJ

[Dr. Katariina Pärnänen @Kata_MMP]

7/9 Genders share similar ARGs despite the difference in their abundance. Region and age explained far more variation in ARG composition than gender. https://t.co/BfehpkT9ZJ

[Dr. Katariina Pärnänen @Kata_MMP]

6/9 Gender differences in ARG abundance emerged in adulthood, indicating that gender-associated lifestyle, biological, or healthcare-related factors in adulthood may be linked to antibiotic resistance. https://t.co/tpWfSm0MiG

[Dr. Katariina Pärnänen @Kata_MMP]

5/9 In LMICs, limited data indicated that when accounting for confounding factors such as age and socio-economics, the difference between men and women was not significant. https://t.co/BfehpkT9ZJ

[Dr. Katariina Pärnänen @Kata_MMP]

4/9 Women in HICs also showed slightly higher ARG diversity than men, suggesting a broader range of resistance genes present in their gut microbiome. https://t.co/BfehpkT9ZJ

[Dr. Katariina Pärnänen @Kata_MMP]

3/9 In high-income countries (HICs), women had 9% higher ARG abundance compared to men. This suggests that women in HICs may be more exposed to or carry more antibiotic-resistant bacteria. In low-income countries (LMICs), the trend was reversed. https://t.co/tpWfSm0MiG

[Dr. Katariina Pärnänen @Kata_MMP]

2/9 Antimicrobial resistance #AMR is a major #globalhealth threat. How does it vary between genders? We analyzed 14,641 open human gut #metagenomes from 32 countries to investigate gender differences in #antibioticResistance genes (ARGs). https://t.co/tpWfSm0MiG

[Dr. Katariina Pärnänen @Kata_MMP]

1/9 Did you know that the female #microbiome is unique in many ways, and antibiotic resistance in the gut microbiome varies between genders? See npj Biofilms and Microbiomes special issue, Women and their microbes, to learn more! https://t.co/9Jpa1mPMDx

[Dr. Katariina Pärnänen @Kata_MMP]

@antagomir

[Dr. Katariina Pärnänen @Kata_MMP]

🚨 Our new study on 14,641 gut metagenomes:
🧬 Women have 9% more antibiotic resistance genes (ARGs) than men
🌍 Difference not observed in LMICs
🧑 ARG differences appear in adulthood
📖 https://t.co/sZZ9KcFbD0
#AMR #GenderHealth #Microbiome #GlobalHealth