Mora J D, Grant L, Kenyon P, Patel M K, Jenner F A
Br J Psychiatry. 1976 Nov;129:457-64. doi: 10.1192/bjp.129.5.457.
The breathing rate and PCO2 in end-tidal air have been studied in controls and in patients with endogenous depression (retarded and non-retarded), with neurotic depression, and with schizophrenia. It has been shown that breathing rate goes up and PCO2 down in non-retarded and neurotic depression. Schizophrenia gives more anomalous results. The fact is emphasized that such changes must lead to alterations in pH and other variables. Studies showing some small chemical differences between these clinical entities and control subjects might therefore be explained by these findings.
对对照组、内源性抑郁症患者（迟缓型和非迟缓型）、神经症性抑郁症患者以及精神分裂症患者的呼气末空气呼吸频率和二氧化碳分压进行了研究。结果表明，非迟缓型和神经症性抑郁症患者的呼吸频率升高，二氧化碳分压降低。精神分裂症患者的结果则更为异常。需要强调的是，这种变化必然会导致pH值和其他变量的改变。因此，那些显示这些临床实体与对照受试者之间存在一些微小化学差异的研究结果或许可以用这些发现来解释。
