Pain pathophysiology responses

In broad terms, pain can be divided into two categories, acute and chronic, which differ in their aetiology, mechanisms and pathophysiology. Acute pain and its associated responses are provoked by noxious stimulation and/or disease, or by abnormal function of muscle or viscerae which does not involve actual tissue damage. Although acute pain conditions may last for a length of time if not treated effectively, many cases of acute... 

Heim C, Ehlert U, Rexhausen J, Hanker JP, Hellhammer DH (1998) Abuse-related post-traumatic stress disorder and alterations of the hypothalamic-pituitary-adrenal axis in women with chronic pelvic pain. Psychosom Med 60 309-318 Heim C, Ehlert U, Hellhammer DH (2000) The potential role of hypocortisolism in the pathophysiology of stress-related bodily disorders. Psychoneuroendocrinology 25 1 -35 Heim C, Newport DJ, BonsaU R, MiUer AH, Nemeroff CB (2001) Altered pituitary-adrenal axis responses to provocative challenge tests in adult survivors of childhood abuse. Am J Psychiatry 158 575-581... 

CFS, also known as Chronic Fatigue and Immune Dysfunction Syndrome (CFIDS), is a multisystem disorder with unknown etiology or pathophysiology. It is currently thought that CFS is a multifactorial condition in which an infective agent causes an aberrant immune response. It is characterized by extreme fatigue, immune system dysfunction, neurological and endocrine disorders, chronic pain, and numerous other symptoms. Many of those with CFS are extremely sensitive to chemical exposure. F9-34]... 

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