Barbara Ziółkowska

The effect of preproenkephalin gene deletion on heart function in mice

This study examines the effect of preproenkephalin gene deletion on heart function in mice, finding no major changes in heart size or function under basal conditions but some reductions in filling and ejection rates.

Changes in social reward across adolescence in male mice

This study shows that social reward in male mice decreases during mid-adolescence, mirroring human developmental patterns.

Mu and delta opioid receptor antagonists increase the expression of social conditioned place preference in early adolescent mice

The paper shows that opioid receptor antagonists increase social conditioned place preference in early adolescent mice, suggesting developmental changes in social motivation mechanisms.

Decreased social, drug, and food reward sensitivity in adolescent mice

This study shows that adolescent mice show reduced reward sensitivity for social and food rewards but not cocaine, compared to adults, suggesting developmental changes in reward processing.

μ-Opioid receptor transcriptional variants in the murine forebrain and spinal cord

The paper identifies a long 3' untranslated region in the primary Oprm1 transcript in mice, with additional variants expressed at lower levels.