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Stress

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Full-Text Articles in Medicine and Health Sciences

A Gastrointestinal-Specific Antibiotic As An Experimental Treatment For Anxio-Depressive Disorders, Yuang-Tai Huang Jan 2022

A Gastrointestinal-Specific Antibiotic As An Experimental Treatment For Anxio-Depressive Disorders, Yuang-Tai Huang

All ETDs from UAB

Chronic stress is a predisposing factor for various disease states, including neuropsychiatric disorders, such as depression and anxiety [1]. Stress-related disorders have complicated multifactorial etiologies [2]. Advances in psychotherapeutic and psychotropic treatments have occurred, but anxiety and depressive disorders are still prevalent and remain a burden to our societies [3]. More than 30% of major depressive disorder patients fail to remission despite an FDAapproved medication [4]. Meanwhile, the contribution of microbiota-gut-brain axis signaling in both etiologies and treatment of stress-related disorders is increasingly being recognized [5]. More evidence has shown that the gut microbiota has the potential to alter the …


Norepinephrine Circuits In Mediating Stress-Elicited Behavior, Hyungwoo Nam Jan 2015

Norepinephrine Circuits In Mediating Stress-Elicited Behavior, Hyungwoo Nam

All ETDs from UAB

Norepinephrine in the central nervous system (CNS) is a key mediator of stress-elicited behavioral and physiological adaptations. However, our understanding of central noradrenergic circuitry that regulates specific stress-elicited adaptations is incomplete. The working model for the studies described in this dissertation is that disruptions of specific noradrenergic circuits are responsible for the manifestation of distinct stress-elicited behaviors. Initially the organization of descending noradrenergic neurons with poly-synaptic collaterals to the adrenal gland and skeletal muscle was defined. These noradrenergic presympathetic-premotor neurons (PSPMNs) were distributed within the ventral locus coeruleus (LC), nucleus subcoeruleus (SubC), and the A7 cell group. Then behavioral characterization …