Publications by authors named "P J Weldon"
Article Synopsis
- The Mangshan pit viper is a rare and endangered snake found in Hunan Province, China, with unique chemical properties in its scent glands.
- Recent studies identified new methyl-branched unsaturated acids in the secretions of six captive snakes, characterized through advanced analytical techniques.
- These findings suggest a potential role for these acids in chemical signaling rather than just defense, along with the discovery of proline-containing diketopiperazines in snake scent glands.
Pheochromocytomas (PCCs) and paragangliomas (PGLs) represent tumors arising from chromaffin cells of the adrenal medulla and extra-adrenal sympathetic paraganglia, respectively. PCCs commonly produce one or more catecholamines (epinephrine, norepinephrine, and dopamine), but rarely are they biochemically silent. PGLs on the other hand, generally do not produce catecholamines.
View Article and Find Full Text PDFHerpesviruses can be significant reptile pathogens. Herpesviral infection in a wild-caught, male spider tortoise () under human care was detected during a routine wellness examination prior to transition between zoologic organizations. The tortoise had no clinical signs of illness.
View Article and Find Full Text PDFIntroduction: Simulation-based medical education (SBME) is widely used to teach bedside procedural skills. Feedback is crucial to SBME but research on optimal timing to support novice learners' skill development has produced conflicting results.
Methods: We randomly assigned 32 novice medical students to receive feedback either during (concurrent) or after (terminal) trialing lumbar puncture (LP).
Background: Despite the high number of children treated in emergency departments, patient safety risks in this setting are not well quantified. Our objective was to estimate the risk and type of adverse events, as well as their preventability and severity, for children treated in a paediatric emergency department.
Methods: Our prospective, multicentre cohort study enrolled children presenting for care during one of 168 8-hour study shifts across nine paediatric emergency departments.