Publications by authors named "Nicholas A Ward"

Purpose: Photophobia is a common and debilitating symptom associated with migraine. Women are disproportionately affected by migraines, with a higher prevalence and more severe symptoms compared to men. This study investigated the effects of cortical spreading depression on light-aversive and dark-seeking behaviors in a rat model, with an emphasis on sex differences.

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Article Synopsis
  • Researchers investigated protic ruthenium complexes with dihydroxybipyridine (dhbp) ligands and spectator ligands (like bpy and phen) to evaluate their effectiveness against cancer cells and their luminescent properties.
  • The study focuses on 16 complexes derived from two protonation states (acidic and deprotonated), including new complexes that were synthesized and characterized through spectroscopy and X-ray crystallography.
  • Key findings show that certain complexes can be activated by light to exhibit photocytotoxicity, with specific complex characteristics such as longer luminescent lifetimes correlating with improved effectiveness against cancer cells.
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Nine ruthenium CNC pincer complexes (1-9) were tested for anticancer activity in cell culture under both dark and light conditions. These complexes included varied CNC pincer ligands including OH, OMe, or Me substituents on the pyridyl ring and wingtip N-heterocyclic carbene (NHC) groups which varied as methyl (Me), phenyl (Ph), mesityl (Mes), and 2,6-diisopropylphenyl (Dipp). The supporting ligands included acetonitrile, Cl, and 2,2'-bipyridine (bpy) donors.

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We report new ruthenium complexes bearing the lipophilic bathophenanthroline (BPhen) ligand and dihydroxybipyridine (dhbp) ligands which differ in the placement of the OH groups ([(BPhen) Ru(n,n'-dhbp)]Cl with n = 6 and 4 in 1 and 2 , respectively). Full characterization data are reported for 1 and 2 and single crystal X-ray diffraction for 1 . Both 1 and 2 are diprotic acids.

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