Publications by authors named "T Raivio"

In this study, we identify and characterize a novel phage-inducible chromosomal island found in commensal Escherichia coli MP1. This novel element, EcCIMP1, is induced and mobilized by the temperate helper phage vB_EcoP_Kapi1. EcCIMP1 contributes to superinfection immunity against its helper phage, impacting bacterial competition outcomes.

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Article Synopsis
  • Bacterial pathogens need to bypass host immune defenses and nutrient limitations to cause infections, making the use of human serum a promising medium for discovering new antibacterial drugs.
  • A recent high-throughput screen using human serum revealed compounds that not only inhibited bacterial growth but also enhanced it, particularly synthetic siderophores that help bacteria acquire iron.
  • The most effective compound, a synthetic siderophore combined with the antibiotic aztreonam, led to the creation of MLEB-22043, a broad-spectrum antibiotic that shows improved efficacy against resistant bacteria when paired with a β-lactamase inhibitor.
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Research Question: What are the perspectives of preimplantation genetic testing (PGT) patients in Belgium on the ethics of PGT for polygenic risk scoring (PGT-P)?

Design: In-depth interviews (18 in total, 10 couples, 8 women, n = 28) were performed with patients who had undergone treatment with PGT for monogenic/single-gene defects (PGT-M) or chromosomal structural rearrangements (PGT-SR) between 2017 and 2019 in Belgium. Participants were asked about their own experiences with PGT-M/SR and about their viewpoints on PGT-P, including their own interest and their ideas on its desirability, scope and consequences. Inductive content analysis was used to analyse the interviews.

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Recently, the use of polygenic risk scores in embryo screening (PGT-P) has been introduced on the premise of reducing polygenic disease risk through embryo selection. However, it has been met with extensive critique: considered "technology-driven" rather than "evidence-based", concerns exist about its validity, utility, ethics, and societal effects. Its scientific foundations and criticisms thus need to be carefully considered.

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MAPK activating death domain (MADD) is a multifunctional protein regulating small GTPases RAB3 and RAB27, MAPK signaling, and cell survival. Polymorphisms in the MADD locus are associated with glycemic traits, but patients with biallelic variants in MADD manifest a complex syndrome affecting nervous, endocrine, exocrine, and hematological systems. We identified a homozygous splice site variant in MADD in 2 siblings with developmental delay, diabetes, congenital hypogonadotropic hypogonadism, and growth hormone deficiency.

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