Plasma adenosine levels in overweight/obese pregnant women. (a) HPLC was used to measure adenosine levels in plasma samples from lean non-pregnant (control, Ctl, n = 23), overweight/obese non-pregnant (OW, n = 7), lean pregnant (NP, n = 12), and overweight/obese pregnant women in their third trimester (OW-P, n = 18). (b) Plasma adenosine levels considering reduced (n = 11), adequate (n = 11), or elevated (n = 8) weight gain in pregnant women in their third trimester. Each point represents an individual woman. Values are expressed as the mean ± S.E.M. p value is provided for each comparison