Key result
Inhibition of KV channels with 4-aminopyridine significantly reduced the duration of reactive hyperemia in lean swine (66 ± 5 sec) but not in metabolic syndrome swine (77 ± 12 sec).
Voltage-dependent K+ channels play a prominent role in coronary ischemic vasodilation in lean swine, but this mechanism is impaired in early obesity and metabolic syndrome.
No takes yet. Share an insight, caveat, or question.
KV channel impairment may underlie coronary dysfunction in metabolic syndrome; hypothesis-generating for human mechanisms and targets.
Borbouse et al. (2008) studied Metabolic syndrome (n=15). 4-aminopyridine and penitrem A vs. Lean vs Metabolic syndrome swine was evaluated on Duration of the reactive hyperemic response to a 15-second occlusion of the left anterior descending coronary artery. Inhibition of KV channels with 4-aminopyridine significantly reduced the duration of reactive hyperemia in lean swine (66 ± 5 sec) but not in metabolic syndrome swine (77 ± 12 sec).
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: