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Petals Ameliorate Depressive-like Symptom and Cognitive Deficit in Unpredictable Chronic Mild Stress Mouse Model.
Nutrients
December 2024
Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand.
Chronic stress exposure has been widely recognized as a significant contributor to numerous central nervous system (CNS) disorders, leading to debilitating behavioral changes such as anxiety, depression, and cognitive impairments. The prolonged activation of the hypothalamic-pituitary-adrenal (HPA) axis during chronic stress disrupts the neuroendocrine balance and has detrimental effects on neuronal function and survival. () Gaertn.
View Article and Find Full Text PDFSpinal impostor: Metastatic cervical paraganglioma presenting with paraparesis, a case report.
Int J Surg Case Rep
January 2025
Neurosurgery Section, Department of Surgery, The Aga Khan Hospital, P. O Box 2289, Dar Es Salaam, Tanzania.
Introduction And Importance: Paragangliomas are rare neuroendocrine tumors, typically arising from extra-adrenal chromaffin cells. Primary intra-spinal paragangliomas are uncommon, and metastatic spinal paragangliomas without paraneoplastic symptoms are even rarer. This case highlights the diagnostic challenges posed by such rare tumors.
View Article and Find Full Text PDFIdentifying the most effective acute stress induction methods for producing SAM- and HPA-related physiological responses: a meta-analysis.
Anxiety Stress Coping
January 2025
Neuroendocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
Background And Objectives: Laboratory-based stress inductions are commonly used to elicit acute stress but vary widely in their procedures and effectiveness. We compared the effects of stress induction techniques on measures of two major biological stress systems: the early sympathetic-adrenal-medullary (SAM) and the delayed hypothalamic-pituitary-adrenal (HPA) axis response.
Design: A review and meta-analysis to examine the relationship between stress induction techniques on cardiorespiratory and salivary measures of SAM and HPA system activity.
Neurobiological mechanisms of antidepressant properties of psilocybin: A systematic review of blood biomarkers.
Prog Neuropsychopharmacol Biol Psychiatry
January 2025
Department of Psychiatry, University Medical Center Groningen, Groningen, the Netherlands.
Psilocybin represents a novel therapeutic approach for individuals with major depressive disorder (MDD) who do not respond to conventional antidepressant treatment. Investigating the influence of psilocybin on the pathophysiological processes involved in MDD could enhance our neurobiological understanding of the presumed antidepressant action mechanism. This systematic review aims to summarize the results of human studies investigating changes in blood-based biomarkers of MDD to guide future research on potentially relevant analytes that could be monitored in clinical trials.
View Article and Find Full Text PDFAcute and chronic cannabis vapor exposure influences basal and stress-induced release of glucocorticoids in male and female rats.
Psychoneuroendocrinology
December 2024
Hotchkiss Brain Institute, Mathison Centre for Mental Health Research and Education, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Cell Biology and Anatomy & Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada. Electronic address:
Management of stress and anxiety is often listed as the primary motivation behind cannabis use. Human research has found that chronic cannabis use is associated with increased basal cortisol levels but blunted neuroendocrine responses to stress. Preclinical research has demonstrated mixed effects of Δ-tetrahydrocannabinol (THC; the psychoactive constituent of cannabis), much of which is suggestive of dose-dependent effects; however, the predominance of this work has employed an injection method to deliver cannabis.
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