Polar mesospheric ozone loss initiates downward coupling of solar signal in the Northern Hemisphere.

Solar driven energetic particle precipitation (EPP) is an important factor in polar atmospheric ozone balance and has been linked to ground-level regional climate variability. However, the linking mechanism has remained ambiguous. The observed and simulated ground-level changes start well before the processes from the main candidate, the so-called EPP-indirect effect, would start.

Drug repurposing screen targeting PARP identifies cytotoxic activity of efavirenz in high-grade serous ovarian cancer.

Drug repurposing has potential to improve outcomes for high-grade serous ovarian cancer (HGSOC). Repurposing drugs with PARP family binding activity may produce cytotoxic effects through the multiple mechanisms of PARP including DNA repair, cell-cycle regulation, and apoptosis. The aim of this study was to determine existing drugs that have PARP family binding activity and can be repurposed for treatment of HGSOC.

Patient experience of an abstinence-based Indigenous residential treatment program in Northern Ontario: a descriptive qualitative study.

Background: Indigenous peoples with substance use disorders (SUD) and intergenerational trauma (IGT) face complex healthcare needs. Therefore understanding Indigenous patient experiences is crucial for enhancing care delivery, fostering engagement, and achieving optimal outcomes, yet few studies explore the motivations for seeking, staying in, and utilizing treatment from an Indigenous perspective. The goal of this study was to understand the patient experience with an abstinence-based treatment model in a residential treatment setting.

Do we need urine drug screens in opioid addiction treatment: An observational study on self-report versus urine drug screens.

Background: The substance use crisis continues to progress. Medication for Opioid Use Disorder (MOUD) are prescribed to reduce opioid use and related harms; however, many individuals continue to use substances while on treatment. The objective of this study was to describe the temporal and demographic trends of the agreement between self-reported and urine tested substances.

The potential regulation of the miR-17-92a cluster by miR-21.

MicroRNAs (miRNA,miRs) are small noncoding RNAs that are ubiquitously expressed in all mammalian cells. Their primary function is the regulation of nascent RNA transcripts by direct binding to regions on the target. There is now exciting data to suggest that these miRNAs can bind to other miRNAs, and this may have a broader impact on gene regulation in disease states.