Synthesis of β-lactam-zidovudine pronucleosides as potential selective narrow-spectrum antibacterial agents.

Since the discovery of penicillin, the forerunner of the most widely used class of antibiotics ( β-lactams), natural compounds and their derivatives represented a major source of antibacterial therapeutic products whose availability enabled modern medical practices (invasive surgery, organ transplant, .). However, the relentless emergence of resistant bacteria is challenging the long-term efficacy of antibiotics, also decreasing their economic attractiveness for big pharma, leading to a significant decay in antibacterial development in the 21 century and an increased use of last-resort drugs such as carbapenems or colistin.

C-section and systemic inflammation synergize to disrupt the neonatal gut microbiota and brain development in a model of prematurity.

Infants born very preterm (below 28 weeks of gestation) are at high risk of developing neurodevelopmental disorders, such as intellectual deficiency, autism spectrum disorders, and attention deficit. Preterm birth often occurs in the context of perinatal systemic inflammation due to chorioamnionitis and postnatal sepsis. In addition, C-section is often performed for very preterm neonates to avoid hypoxia during a vaginal delivery.

ChiA: a major player in the virulence of Crohn's disease-associated adherent and invasive (AIEC).

We investigated the role of ChiA and its associated polymorphisms in the interaction between Crohn's disease (CD)-associated adherent-invasive (AIEC) and intestinal mucosa. We observed a higher abundance of among the metagenome of CD patients compared to healthy subjects. In dextran sulfate sodium-induced colitis mice model, AIEC-LF82∆ colonization was reduced in ileal, colonic and fecal samples compared to wild-type LF82.

Transfontanellar shear wave elastography of the neonatal brain for quantitative evaluation of white matter damage.

Cerebral white matter damage (WMD) is the most frequent brain lesion observed in infants surviving premature birth. Qualitative B-mode cranial ultrasound (cUS) is widely used to assess brain integrity at bedside. Its limitations include lower discriminatory power to predict long-term outcomes compared to magnetic resonance imaging (MRI).

Quantification of brain-wide vascular resistivity via ultrafast Doppler in human neonates helps early detection of white matter injury.

Preterm birth is associated with cerebrovascular development disruption and can induce white matter injuries (WMI). Transfontanellar ultrasound Doppler is the most widely used clinical imaging technique to monitor neonatal cerebral vascularisation and haemodynamics based on vascular indexes such as the resistivity index (RI); however, it has poor predictive value for brain damage. Indeed, these RI measurements are currently limited to large vessels, leading to a very limited probing of the brain's vascularisation, which may hinder prognosis.