Fig. 2.
Representative phrenic neurograms depicting experimental protocols in rats treated before AIH. A: intrathecal vehicle [RNA inhibition (RNAi) buffer] before (∼2 h) AIH. B: intrathecal siTrkB before AIH. C: intrathecal siBDNF before AIH. D: time control rats that received intrathecal vehicle without AIH. Pretreatment with siTrkB did not inhibit phrenic long-term facilitation (pLTF) compared with vehicle-treated rats exposed to AIH. siBDNF inhibited pLTF versus vehicle, time control experiments. MAP, mean arterial pressure.