Separate determination of hydrocortisone and corticosterone in the blood of patients with the hypercorticism symptom-complex showed that elevation of the corticosteroid concentration could occur on account of similar elevation of the concentration of both hormones, or one of the hormones alone. Analogous data were observed in patients after ACTH administration. Dexamethasone administration caused a reduction of the hydrocortisone and corticosterone concentration in patients with Itsenko-Cushing's disease, but to a lesser degree than in healthy individuals. Administration of the preparation to the patients with juvenile dyspituitrism decreased the cortizol level, but corticosterone chiefly; as to the patients with the hypothalamic syndrome--only the cortizol level was reduced, the level of corticosterone remaining unchanged. Thus, the evidence obtained before and after the administration of the ACTH preparations and dexamethasone permitted to assess the adrenal cortex function more fully and to defect disturbances of the corticosteroid secretion of interest of the understanding of the clinical symptoms of the disease.
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Gut Microbes
December 2025
Department of Anesthesiology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
Chronic stress can result in various conditions, including psychological disorders, neurodegenerative diseases, and accelerated brain aging. Gut dysbiosis potentially contributes to stress-related brain disorders in individuals with chronic stress. However, the causal relationship and key factors between gut dysbiosis and brain disorders in chronic stress remain elusive, particularly under non-sterile conditions.
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December 2024
Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision, and Brain Health), Institute of Mental Health and Drug Discovery, School of Mental Health, Wenzhou Medical University, Ouhai District, Wenzhou 325000, China.
Background: glucocorticoids may play an important role in the formation of fear memory, which is relevant to the neurobiology of post-traumatic stress disorder (PTSD). In our previous study, we showed the glucocorticoid receptor (GR) forms a protein complex with FKBP51, which prevents translocation of GR into the nucleus to affect gene expression; this complex is elevated in PTSD patients and by fear-conditioned learning in mice, and disrupting this complex blocks the storage and retrieval of fear-conditioned memories. The timing of release of glucocorticoid relative to the formation of a traumatic memory could be important in this process, and remains poorly understood.
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January 2025
Aquatic Biotechnology Laboratory, Instituto Investigaciones Marinas-CSIC, Vigo, Spain.
The common octopus () is a promising candidate for aquaculture diversification, particularly in Europe. As interest in octopus farming grows, animal welfare concerns arise. In bony vertebrates (teleosts and tetrapods), measurements of the levels of corticosterone or cortisol have been successfully used as indicators of stress and welfare.
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January 2025
Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
Neurosci Lett
January 2025
Institute of Pharmaceutical Sciences, Khyber Medical University, Pakistan. Electronic address:
Depression is a pervasive mood disorder that continues to challenge researchers and clinicians worldwide. Caffeine and its derivatives have been studied for their neuroprotective and antidepressant effect. Current study aimed to explore the potential antidepressant effect of a caffeine derivative, Sy-2476 [4-(1, 3, 7-trimethyl-2, 6-dioxo-2, 3, 6, 7-tetrahydro-1H-purin-8-yl) benzo nitrile], in corticosterone-induced rat model of depression.
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