Impact of COVID-19 on acute appendicitis presentation, management and pathology findings in adult and paediatric populations.

Background: We investigated the impact of the COVID-19 pandemic on trends of presentation, management and pathology findings in patients who underwent an appendicectomy for suspected acute appendicitis.

Method: The retrospective study reviewed patients (n = 939 adults and n = 329 children) who had an appendicectomy performed for suspected acute appendicitis and histopathology assessment in the Belfast Health and Social Care Trust, Northern Ireland. Pre-COVID-19 (March 2019 to February 2020) and COVID-19 Year 1 (March 2020 to February 2021) data were compared.

How to use perianal examination in children.

No examination of a child's abdomen or gastrointestinal system is complete without an examination of the 'backside' or perineum, however there is often reluctance among paediatricians to perform this examination routinely. This article aims to describe how to use perineal examination in infants and children. It discusses the indications and stepwise approach to performing a per-rectal examination and interpretation of the findings one could expect to encounter.

Multidisciplinary, In Situ Simulation Improves Experienced Caregiver Confidence With High-Risk Pediatric Emergencies.

Objectives: Emergency department (ED) caregivers have reported feeling uncomfortable performing emergency pediatric procedures, likely because of either a lack of training or infrequent exposure to these events. To address these gaps, ongoing education for experienced ED caregivers must aim to improve caregiver confidence with high-risk, low-volume pediatric emergency care. This study used multidisciplinary, in situ simulations to facilitate improved caregiver confidence when treating pediatric emergencies in an ED setting.

The ribosome biogenesis factor yUtp23/hUTP23 coordinates key interactions in the yeast and human pre-40S particle and hUTP23 contains an essential PIN domain.

Two proteins with PIN endonuclease domains, yUtp24(Fcf1)/hUTP24 and yUtp23/hUTP23 are essential for early pre-ribosomal (r)RNA cleavages at sites A0, A1/1 and A2/2a in yeast and humans. The yUtp24/hUTP24 PIN endonuclease is proposed to cleave at sites A1/1 and A2/2a, but the enzyme cleaving at site A0 is not known. Yeast yUtp23 contains a degenerate, non-essential PIN domain and functions together with the snR30 snoRNA, while human hUTP23 is associated with U17, the human snR30 counterpart.

The PIN domain endonuclease Utp24 cleaves pre-ribosomal RNA at two coupled sites in yeast and humans.

During ribosomal RNA (rRNA) maturation, cleavages at defined sites separate the mature rRNAs from spacer regions, but the identities of several enzymes required for 18S rRNA release remain unknown. PilT N-terminus (PIN) domain proteins are frequently endonucleases and the PIN domain protein Utp24 is essential for early cleavages at three pre-rRNA sites in yeast (A0, A1 and A2) and humans (A0, 1 and 2a). In yeast, A1 is cleaved prior to A2 and both cleavages require base-pairing by the U3 snoRNA to the central pseudoknot elements of the 18S rRNA.