Publications by authors named "Alison M Campbell"

Aim:  In our practice, preformed silos are routine rather than reserved for difficult cases. We aimed to identify whether silo and bedside closure can minimize: general anesthetic (GA) exposure, need for intubation and ventilation, or days intubated for neonates with simple gastroschisis (SG).

Methods:  After approval, patients were identified via the neonatal discharge log (April 2010 to April 2019).

View Article and Find Full Text PDF

Background: It is often stated that if a patient presents with 'painless rectal bleeding' then a rectal polyp is the probable diagnosis. The aim of this study is to review our experience of children undergoing endoscopy to assess if the above statement is correct.

Methods: The senior author keeps a prospective database of every child undergoing flexible sigmoidoscopy or colonoscopy.

View Article and Find Full Text PDF

Objectives: To understand the factors influencing the decisions of rural general practitioners and GP registrars to practise obstetrics, and to understand the impact on these decisions of an innovative obstetric training and support program in the Gippsland region of Victoria.

Design, Setting And Participants: Qualitative approach using semistructured interviews conducted in July and August 2013 and inductive content analysis. Participants were identified from training records over the previous 5 years for the Gippsland GP obstetric training and support program.

View Article and Find Full Text PDF
Article Synopsis
  • Full thickness rectal prolapse (FTRP) in kids usually gets better on its own, but some might need surgery if it doesn't go away.
  • A study looked at the results of ten kids who had FTRP and used special MRI scans to see how their condition changed before surgery.
  • The results suggest that a surgery called rectopexy works better than another type called Delorme's procedure for kids with more serious cases, while some kids still had issues after treatment.
View Article and Find Full Text PDF

Neural crest cells (NCC) are multipotent progenitors that migrate extensively throughout the developing embryo and generate a diverse range of cell types. Vagal NCC migrate from the hindbrain into the foregut and from there along the gastrointestinal tract to form the enteric nervous system (ENS), the intrinsic innervation of the gut, and into the developing lung buds to form the intrinsic innervation of the lungs. The aim of this study was to determine the developmental potential of vagal NCC that had already colonised the gut or the lungs.

View Article and Find Full Text PDF

In contrast to their mammalian hosts, parasitic nematodes are heme auxotrophs and require pathways for the uptake and transport of exogenous heme for incorporation into hemoproteins. Phase II detoxification Nu-class glutathione transferase (GST) proteins have a proposed role as heme-binding ligandins in parasitic nematodes. The genome-verified free-living nematode Caenorhabditis elegans also cannot synthesize heme and is an ideal functional genomics model to delineate the role of individual nematode GSTs in heme trafficking and heme detoxification.

View Article and Find Full Text PDF

Multislice Q2TIPS is a widely used pulsed arterial spin labeling (PASL) technique for efficient and accurate quantification of cerebral blood flow (CBF). Slices are typically acquired inferior to superior from a tagging plane. Superior slices show signal loss greater than the loss expected from blood T1 decay.

View Article and Find Full Text PDF

Purpose: To optimize pulsed arterial spin labeling (PASL) parameters for the elderly to take into account possible perfusion changes that occur in the brain with age.

Materials And Methods: Healthy young (N = 14, age range = 21-27 years) and elderly (N = 12, age range = 61-67 years) subjects were scanned using Q2TIPS (QUIPSS II with thin-slice TI, periodic saturation) with varying inversion times (TI(2)) at 1.5T.

View Article and Find Full Text PDF

The crystal structure of GST Nu2-2 (HpolGSTN2-2) from the model hookworm nematode Heligmosomoides polygyrus has been solved by the molecular replacement method and refined to a resolution of 1.71 A, providing the first structural data from a class of nematode-specific GSTs. By structural alignment with two Sigma class GSTs, glutathione could be rationally docked into the G-site of the enzyme.

View Article and Find Full Text PDF

Phage display techniques using random peptide interactions have supported the role of mammalian glutathione transferase (GST) as part of a signalling pathway for both oxidative stress and an apoptosis pathway. Little is known about the interaction of nonmammalian GST with other proteins. GSTs have been implicated in the development of chronic nematode infections by neutralising cytotoxic products arising from host immune initiated reactive oxygen species (ROS) assault.

View Article and Find Full Text PDF