First Author | Popova NK | Year | 2006 |
Journal | Psychoneuroendocrinology | Volume | 31 |
Issue | 2 | Pages | 179-86 |
PubMed ID | 16112493 | Mgi Jnum | J:106365 |
Mgi Id | MGI:3618410 | Doi | 10.1016/j.psyneuen.2005.06.005 |
Citation | Popova NK, et al. (2006) MAO A knockout attenuates adrenocortical response to various kinds of stress. Psychoneuroendocrinology 31(2):179-86 |
abstractText | The effect of a lack of the gene encoding monoamine oxidase A (MAO A) in transgenic Tg 8 mice on the corticosterone response to restraint, cold, water deprivation-induced, or social acute stress as well as chronic variable stress was studied. It was found that Tg 8 mice with genetic MAO A knockout and wild-type C3H/HeJ (C3H) strain showed similar plasma corticosterone resting level. MAO A knockout mice differed from C3H mice by attenuated response to restraint (60 min), cold (4 degrees C, 60 min), and water deprivation (48 h) as well as to a chronic (15 days) variable stress. No difference between Tg 8 and C3H strains in the response to psychosocial stress (encounters for 30 min of six previously isolated mice) has been found. ACTH administration to dexamethasone-pretreated mice produced a similar corticosterone effect in Tg 8 and C3H mice, indicating that the decreased stress response in MAO A-deficient mice was due rather to the central mechanisms regulating stress-induced ACTH release than to adrenocortical responsiveness to ACTH. |