Lihong Jiang1, Basavaraju G. Sanganahalli1,
Peter Herman1, Raimund Herzog1, Robert Sherwin1,
investigated BOLD responses to forepaw stimulation under insulin-induced
acute hypoglycemic condition, as well as effect of lactate infusion under
hypoglycemia condition. All high field fMRI experiments were conducted in
α-chloralose anesthetized rats.
The magnitude of the BOLD response in primary somatosensory (S1FL)
region decreased from euglycemic to hypoglycemic conditions. Upon lactate
infusion, under hypoglycemic condition, transiently increased S1 activities,
but also recruited regions beyond S1FL. These results will benefit
the understanding of brain function and metabolism, as well as the role of
alternative fuels under hypoglycemic condition.