Intervention arm | |||
Central and peripheral endogenous endorphins (normal saline) | Central endogenous endorphins only (methylnaltrexone) | No endogenous endorphins (naloxone) | |
Subjects n | 17 | 16 | 16 |
FEV1 | |||
Baseline | |||
Litres | 1.62±0.54 | 1.67±0.61 | 1.59±0.57 |
% pred | 53.95±17.66 | 56.16±18.05 | 52.94±17.82 |
Post-bronchodilator | |||
Litres | 1.83±0.72 | 1.76±0.67 | 1.69±0.59 |
% pred | 56.28±18.16 | 56.58±16.93 | 56.53±18.27 |
Mean FVC | |||
Litres | 2.95±0.62 | 3.10±0.71 | 2.98±0.61 |
% pred | 72.95±11.77 | 77.107±11.17 | 73.89±11.34 |
Post-bronchodilator FEV1/FVC | 0.55±0.16 | 0.56±0.18 | 0.55±0.17 |
Data are presented as n or mean±sd. FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity.