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. Author manuscript; available in PMC: 2015 Nov 11.
Published in final edited form as: J Affect Disord. 2011 Aug 9;135(0):354–361. doi: 10.1016/j.jad.2011.07.010

Table 2.

Baseline and week 8 31P-MRS results for female adolescents with MDD vs. healthy controls.

Phosphorus metabolite Major depressive disorder (n=5)
Healthy controls (n=6)
Mean baseline (SD) Mean 8 weeks (SD) p-value Mean baseline (SD) Mean 8 weeks (SD) p-value
PCr/TP 0.1513 (0.0137) 0.1610 (0.0165) 0.020 0.1556 (0.0086) 0.1558 (0.0154) 0.969
β-NTP/TP 0.1254 (0.0087) 0.1280 (0.0125) 0.729 0.1203 (0.0048) 0.1253 (0.0109) 0.329
pH 7.059 (0.1383) 7.0712 (0.0359) 0.648 7.0526 (0.0290) 7.0294 (0.0143) 0.054
PCr/β-NTP 1.221 (0.0528) 1.2700 (0.1380) 0.528 1.2962 (0.1005) 1.2584 (0.2172) 0.645

Paired t-test, 2-tailed.

PCr: Phosphocreatine.

β-NTP: beta-Nucleoside Triphosphate.

TP: Total Phosphorus Resonance.

31

P MRS: 31-Phosphorus Magnetic Resonance Spectroscopy.

SD: Standard Deviation.