RESUMO
The claim of Hansen (1969) and Hansen and Dimitrakoudi (1974) that whole blood adenosine triphosphate (ATP) levels correlate with depressed affect was examined. The findings from 84 patients failed to confirm any relationship between mood and whole blood ATP. One patient showing the highest correlation (r = 0-85; p less than 0-001) between the ATP levels and mood in the original report was re-examined; no relationship was now found (r = -0-25; p greater than 0-1).
Assuntos
Trifosfato de Adenosina/sangue , Depressão/sangue , Trifosfato de Adenosina/análise , Transtornos de Adaptação/sangue , Transtorno Bipolar/sangue , Colorimetria , Depressão/terapia , Eletroconvulsoterapia , Feminino , Humanos , Espectrometria de Fluorescência , Uridina Difosfato Glucose/sangueRESUMO
Some aspects of red-cell matabolism were studied in blood samples taken from patients on long-term dapsone therapy. Glucose consumption by the Embden-Meyerhof pathway (EMP) was not abnormal and adenosine-triphosphate (ATP) levels lay within the normal range and were well maintained during incubation. Hexose monophosphate patchway (HMP) activity was increased above that which would be expected from the age of the red-cell population. Red-cell reduced glutathione (GSH) levels tended to be lower than normal, proportional to the dose od dapsone and GSH levels were unstable on incubation. Red-cell fractionation studies showed that the older cell fraction had lower GSH levels and more Heinz bodies but proportionally greater HMP activity than the younger cell fraction. It is suggested that the low GSH levels are probably due to the binding of GSH to sulphydryl groups in haemoglobin and possibly the red-cell membrane. The increased HMP activity in the older cells many, in part, be a compensatory mechanism.