Publications by authors named "J D Priddle"

Twenty novel Mn, Fe, and Cu complexes of ethylene cross-bridged tetraazamacrocycles with potentially copolymerizable allyl and benzyl pendant arms were synthesized and characterized. Multiple X-ray crystal structures demonstrate the cis-folded pseudo-octahedral geometry forced by the rigidifying ethylene cross-bridge and show that two cis coordination cites are available for interaction with substrate and oxidant. The Cu complexes were used to determine kinetic stability under harsh acidic and high-temperature conditions, which revealed that the cyclam-based ligands provide superior stabilization with half-lives of many minutes or even hours in 5 M HCl at 50-90 °C.

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Introduction: Ultrasound elastography shows diagnostic promise via the non-invasive determination of placental elastic properties. A limitation is a potential for inadequate measurements from posterior placentae. This study aimed to analyse placental position's influence on measures of shear wave elastography (SWV).

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Introduction: Maternal obesity is a significant risk factor for poor pregnancy outcomes. Obesity is linked to abnormalities in placental tissue at term. The purpose of this study was to correlate changes in placental stiffness, measured via ultrasound elastography, with maternal pre-pregnancy body mass index and gestational weight gain.

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Article Synopsis
  • - The study investigates how ultrasound elastography can assess compromised placental tissue, particularly in relation to uteroplacental dysfunction, amidst limited data on maternal and fetal factors affecting shear wave velocity (SWV) measurements.
  • - Using data from 238 singleton pregnancies in the third trimester, linear mixed model regression identified gestational age, amniotic fluid index (AFI), body mass index (BMI), and sample depth as significant predictors of SWV, with gestational age and AFI having minimal effects.
  • - The findings suggest that many expected changes in the third trimester have little impact on placental SWV, highlighting the need to understand these influences for better management of pregnancies with placental dysfunction in the future.
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Single-photon counting fluorimetry was used to record the time course of the expression of interleukin-10 receptors labelled with fluorescent antibodies on the surface of adipocytes over 24h, following an immune challenge to the rat popliteal lymph node. Homologous perinodal and remote-from-node samples from the stimulated and unstimulated popliteal depots were compared in rats fed on plain chow and chow supplemented with 10% w/w suet, fish or vegetable oils. Receptor expression was maximal 6 h after stimulation, and returned to baseline after 24 h, and was similar in the stimulated and unstimulated depots.

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