Cation transport mediated by Na+,K(+)-adenosine triphosphatase in lymphoblastoma cells from patients with bipolar I disorder, their relatives, and unrelated control subjects.
In an investigation of cation transport in bipolar affective disorder, we have measured parameters related to Na+,K(+)-adenosine triphosphatase, the enzyme that carries out active transport of sodium and potassium, in lymphoblastoid cells cultured from patients with bipolar affective disorder, age-matched nonaffected family relatives, and unrelated control subjects. Patients had lower ion transport per cell and per transport enzyme site than did related or unrelated control subjects. The rate of transport per cell appeared higher in nonaffected relatives of patients than in unrelated control subjects, though this difference did not reach significance. These data suggest that abnormally regulated ion transport may be associated with bipolar affective disorder independently of clinical state.
Cherry
L
L
Department of Psychiatry and Behavioral Sciences, University of Texas Mental Sciences Institute, University of Texas-Houston Medical School 77030.
Swann
A C
AC
D001693:Biological Transport, Active / Q000502:physiology; D001714:Bipolar Disorder / Q000201:enzymology / Q000235:genetics*; D002412:Cations / Q000378:metabolism*; D002460:Cell Line; D006801:Humans; D007473:Ion Channels / Q000502:physiology*; D008214:Lymphocytes / Q000378:metabolism; D011188:Potassium / Q000378:metabolism; D012413:Rubidium / Q000378:metabolism; D000254:Sodium-Potassium-Exchanging ATPase / Q000502:physiology*
D002412:Cations; D007473:Ion Channels; C028996:cardiac glycoside receptors; D000254:Sodium-Potassium-Exchanging ATPase; D012413:Rubidium; D011188:Potassium