. Author manuscript; available in PMC: 2013 Aug 21.

Published in final edited form as: Int J Obes (Lond). 2011 Aug 30;36(3):328–335. doi: 10.1038/ijo.2011.159

Table 2.

Longitudinal changes in copper status and hematology following roux-en-y gastric bypass surgery

	Baseline	6 Month	24 Months
Copper (µmol l⁻¹)	24.6 ± 1.6	22.0 ± 1.8^*	22.2 ± 1.8^*
Zinc (µmol l⁻¹)	13.0 ± 0.5	11.8 ± 0.5	13.1 ± 0.6
Ceruloplasmin activity (units l⁻¹)	111.7 ± 9.4	107.5 ± 13.3	91.0 ± 11.3^*
Hemoglobin (g l⁻¹)	125.3 ± 3.5	122.4 ± 2.9	112.9 ± 2.9
White blood cells (× 10⁹ l⁻¹)	8.84 ± 0.87	6.46 ± 0.52^*	5.83 ± 0.35^*

Copper and zinc concentrations and ceruloplasmin activity, as well as hemoglobin and white blood cells were measured in plasma samples obtained from 16 patients who underwent roux-en-y gastric bypass surgery as described in Patients and methods for study 2. An asterisk (*) depicts significant decrease compared with the measure at baseline, by post hoc analysis, P < 0.05.