Telomerase RNA structural heterogeneity in living human cells detected by DMS-MaPseq.

Biogenesis of human telomerase requires its RNA subunit (hTR) to fold into a multi-domain architecture that includes the template-pseudoknot (t/PK) and the three-way junction (CR4/5). These hTR domains bind the telomerase reverse transcriptase (hTERT) protein and are essential for telomerase activity. Here, we probe hTR structure in living cells using dimethyl sulfate mutational profiling with sequencing (DMS-MaPseq) and ensemble deconvolution analysis.

Psychological Assessment and Motivations of Potential Donors Within the First Australian Uterine Transplant Trial.

Objective: This study aims to investigate the psychological characteristics, motivations and experiences of potential living donors assessed for the first uterus transplant (UTx) clinical trial in Australia.

Design: Mixed methods study.

Setting: Tertiary hospital.

Red blood cell urate levels are linked to hemolysis in vitro and post-transfusion as a function of donor sex, population and genetic polymorphisms in SLC2A9 and ABCG2.

Background: Storage of packed red blood cells (RBCs) for transfusion leads to biochemical and morphological changes, increasing hemolysis risk. Urate levels in blood bags at donation contribute to the molecular heterogeneity and hemolytic propensity of stored RBCs. However, studies to date have been underpowered to investigate at scale the contribution of donor demographics and genetics to the heterogeneity in urate levels across donations.

Cardiopulmonary bypass with deep hypothermic circulatory arrest results in organ-specific transcriptomic responses in pediatric swine.

The organ-level molecular response to cardiac surgery with cardiopulmonary bypass (CPB) remains inadequately understood and may be heterogeneous. Here, we measured organ-specific gene expression in a piglet model of CPB with deep hypothermic circulatory arrest (DHCA). Infant piglets underwent peripheral CPB with 75min of DHCA and 6h of critical care after separation from CPB.

Human leukocyte antigen alloimmunization in a randomized trial of amustaline/glutathione pathogen-reduced red cells in complex cardiac surgery patients.

Background: Although alloimmunization risk of pathogen-reduced (PR) platelets has been studied, the risk has not been reported with PR red blood cells (RBCs).

Study Design And Methods: In a Phase III, randomized, controlled trial (Red Cell Pathogen Inactivation), cardiac or thoracic-aorta surgery patients were randomized to transfusion with amustaline/glutathione PR versus conventional RBCs. Pre-transfusion and Day 28 samples were evaluated for Human leukocyte antigen (HLA) Class I and Class II antibodies at low, medium, and high cutoff values.