Guest guest Posted June 13, 2004 Report Share Posted June 13, 2004 I have a friend in another graphics group that has fibromyalgia and she was curious of the source of the below send through here- and when we click on the hyperlink we get source not found- is anyone aware of where this came from and who the source is? She is building reference pages on fibromyalgia so wants to give proper sources. Thanks in Advance- Hugsssssss TJ https://www.haworthpress.com/store/ArticleAbstract.asp?sid=R5AH360CJSXE8GPM0 SDKGJGH9GSC5MNE&ID=42619 Fibromyalgia Syndrome: A Central Role for the Hippocampus: A Theoretical Construct Page Range: 19 - 26 DOI: 10.1300/J094v12n01_04 B Wood MD, Assistant Professor, Department of Family Medicine, Louisiana State Health Science Center-Shreveport, Shreveport, LA 71103, pwood@... Abstract: Objective: A growing body of evidence implicates the central nervous system as playing a primary role in the diverse phenomena associated with fibromyalgia, including hyperactivity of stress systems and enhanced nociception. The objective of this review is to propose a unifying theory to explain a majority of these. Findings: Stress exposure causes deleterious changes within the central nervous system, the hippocampus being particularly vulnerable. The hippocampus is perhaps best known for its role in memory and cognition, two functions which are impacted by elevated glucocorticoid levels such as occur in prolonged stress. The hippocampus also provides inhibitory drive to brain centers associated with the stress response, i.e., the hypothalamic paraventricular nucleus, central amygdala, and locus coeruleus. In addition, the hippocampus has been demonstrated to participate in nociception, a function positively correlated with the activity of hippocampal N-methyl-Daspartate [NMDA] subtype glutamate receptors. A variety of stress-related hormones are known to enhance the activity of hippocampal NMDA receptors, thereby increasing excitatory neurotransmission within the hippocampus. While the impact of stress-related hormones on hippocampal NMDA receptor function is adaptive in the acute scenario, exposure to chronic stress eventually leads to hippocampal dysfunction and atrophy secondary to excessive excitatory neurotransmission [i.e., excitotoxicity]. Conclusion: Fibromyalgia is characterized by abnormalities that appear to be related to hippocampal dysfunction, including hyperactivity of both corticotropin-releasing hormone neurons and the sympathetic nervous system, impaired declarative memory, and enhanced NMDA receptormediated nociception. It is therefore postulated that stress-induced, NMDA receptor-mediated dysfunction within the hippocampus plays a central role in the etiopathogenesis and clinical phenomena of fibromyalgia. Quote Link to comment Share on other sites More sharing options...
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