Fibromyalgia: Glass JM

Arnold LM, Bradley LA, Clauw DJ, Glass JM, Goldenberg DL. · Women's Health Research Program, Department of Psychiatry, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA. · J Clin Psychiatry. · Pubmed #19192431 No free full text.

Abstract: Fibromyalgia is a common and disabling chronic pain syndrome that is often accompanied by other chronic pain and/or psychiatric comorbidities, which impact fibromyalgia course and outcome. Although a primary care provider will likely take the lead in caring for patients with fibromyalgia, psychiatrists and other mental health professionals may play a role in the diagnosis, evaluation, and management of fibromyalgia. Psychiatrists' familiarity with many of the pharmacologic and nonpharmacologic treatments that are currently being used for fibromyalgia make them valuable partners in the multidisciplinary team of clinicians addressing fibromyalgia and its comorbidities. In this activity, experts on fibromyalgia discuss the nature of the syndrome and its diagnosis and evaluation.

Glass JM. · Substance Abuse Section, Department of Psychiatry, University of Michigan Medical School, Ann Arbor, USA. · J Clin Psychiatry. · Pubmed #18537459 No free full text.

Abstract: Patients with fibromyalgia frequently complain of cognitive problems or "fibrofog." The existence of these symptoms has been confirmed by studies of the incidence of cognitive problems in fibromyalgia patients and by the results of objective tests of metamemory, working memory, semantic memory, everyday attention, task switching, and selective attention. The results of these tests show that fibromyalgia patients have impairments in working, episodic, and semantic memory that mimic about 20 years of aging. These patients have particular difficulty with memory when tasks are complex and their attention is divided. Cognitive symptoms in these patients may be exacerbated by the presence of depression, anxiety, sleep problems, endocrine disturbances, and pain, but the relationship of these factors to cognitive problems in fibromyalgia patients is unclear. Standardized tests and treatment have not yet been established for cognitive problems in fibromyalgia patients.

Glass JM. · University of Michigan, Institute for Social Research and Department of Psychiatry, 426 Thompson Street, Room 5256, Ann Arbor, MI 48106-1248, USA. · Curr Rheumatol Rep. · Pubmed #17092441 No free full text.

Abstract: Fibromyalgia (FM) and chronic fatigue syndrome (CFS) patients often have memory and cognitive complaints. Objective cognitive testing demonstrates long-term and working memory impairments. In addition, CFS patients have slow information-processing, and FM patients have impaired control of attention, perhaps due to chronic pain. Neuroimaging studies demonstrate cerebral abnormalities and a pattern of increased neural recruitment during cognitive tasks. Future work should focus on the specific neurocognitive systems involved in cognitive dysfunction in each syndrome.

Glass JM, Park DC. · Institute for Social Research, The University of Michigan, 426 Thompson Street, Ann Arbor, MI 48106, USA. · Curr Rheumatol Rep. · Pubmed #11286668 No free full text.

Abstract: Fibromyalgia is a puzzling syndrome of widespread musculoskeletal pain. In addition to pain, patients with fibromyalgia frequently report that cognitive function, memory, and mental alertness have declined. A small body of literature suggests that there is cognitive dysfunction in fibromyalgia. This article addresses several questions that physicians may have regarding cognitive function in their patients. These questions concern the types of cognitive tasks that are problematic for patients with fibromyalgia, the role of psychological factors such as depression and anxiety, the role of physical factors such as pain and fatigue, the nature of patients' perceptions of their cognitive abilities, and whether patients can be tested for cognitive dysfunction. Critical areas for further investigation are highlighted.

Glass JM, Lyden AK, Petzke F, Stein P, Whalen G, Ambrose K, Chrousos G, Clauw DJ. · Department of Psychiatry and Institute for Social Research, University of Michigan, Ann Arbor, MI, USA. · J Psychosom Res. · Pubmed #15518675 No free full text.

Abstract: OBJECTIVE: Abnormalities of the biological stress response (hypothalamic-pituitary-adrenal axis and the autonomic nervous system) have been identified in both fibromyalgia (FM) and chronic fatigue syndrome (CFS). Although these changes have been considered to be partly responsible for symptom expression, we examine an alternative hypothesis that these HPA and autonomic changes can be found in subsets of healthy individuals in the general population who may be at risk of developing these conditions. Exposure to "stressors" (e.g., infections, trauma, etc.) may lead to symptom expression (pain, fatigue, and other somatic symptoms) in part by precipitating lifestyle changes. In particular, we focus on the effect of deprivation of routine aerobic exercise on the development of somatic symptoms. METHODS: Eighteen regularly exercising (>/=4 h/week) asymptomatic, healthy adults refrained from physical activity for 1 week. We predicted that a subset of these individuals would develop symptoms of FM/CFS with exercise deprivation, and this manuscript focuses on the baseline HPA axis, immune, and autonomic function measures that may predict the development of symptoms. RESULTS: Eight of the subjects reported a 10% increase in one or more symptoms (pain, fatigue, mood) after 1 week of exercise deprivation. These symptomatic subjects had lower HPA axis (baseline cortisol prior to VO2max testing), immune (NK cell responsiveness to venipuncture), and autonomic function (measured by heart rate variability) at baseline (prior to cessation of exercise) when compared to the subjects who did not develop symptoms. CONCLUSIONS: A subset of subjects developed symptoms of pain, fatigue, or mood changes after exercise deprivation. This cohort was different from the individuals who did not develop symptoms in baseline measures of HPA axis, immune, and autonomic function. We speculate that a subset of healthy individuals who have hypoactive function of the biological stress response systems unknowingly exercise regularly to augment the function of these systems and thus suppress symptoms. These individuals may be at risk for developing chronic multisymptom illnesses (CMIs) (e.g., FM or CFS among others) when a "stressor" leads to lifestyle changes that disrupt regular exercise.

Arnold LM, Bradley LA, Clauw DJ, Glass JM, Goldenberg DL. · Division of Women's Health Research Program, Department of Psychiatry, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA. · J Clin Psychiatry. · Pubmed #19203485 No free full text.

Abstract: Fibromyalgia is a common musculoskeletal pain condition associated with chronic widespread pain, tenderness at various points on the body, fatigue, sleep abnormalities, and common comorbidity with psychiatric and medical disorders. Research into pharmacologic remedies for fibromyalgia has demonstrated efficacy for a variety of agents, but pharmacology is only one piece of the puzzle when it comes to successful management of fibromyalgia. Sensitive and appropriate methods of diagnosis and an integrated treatment plan including proper patient education, aerobic exercise, and cognitive-behavioral therapy have been shown effective in alleviating fibromyalgic symptoms. The development of a comprehensive, multidisciplinary disease management strategy is a difficult but essential challenge facing clinicians treating patients with fibromyalgia.

Geisser ME, Glass JM, Rajcevska LD, Clauw DJ, Williams DA, Kileny PR, Gracely RH. · Chronic Pain and Fatigue Research Center, Department of Internal Medicine, Division of Rheumatology, University of Michigan, Ann Arbor, Michigan 48108, USA. · J Pain. · Pubmed #18280211 No free full text.

Abstract: Fibromyalgia (FM) is characterized by widespread tenderness. Studies have also reported that persons with FM are sensitive to other stimuli, such as auditory tones. We hypothesized that subjects with FM would display greater sensitivity to both pressure and auditory tones and report greater sensitivity to sounds encountered in daily activities. FM subjects (n = 30) and healthy control subjects (n = 28) were administered auditory tones and pressure using the same psychophysical methods to deliver the stimuli and a common way of scaling responses. Subjects were also administered a self-report questionnaire regarding sensitivity to everyday sounds. Participants with FM displayed significantly greater sensitivity to all levels of auditory stimulation (Ps < .05). The magnitude of difference between FM patients' lowered auditory sensitivity (relative to control subjects) was similar to that seen with pressure, and pressure and auditory ratings were significantly correlated in both control subjects and subjects with FM. FM patients also were more sensitive to everyday sounds (t = 8.65, P < .001). These findings support that FM is associated with a global central nervous system augmentation in sensory processing. Further research is needed to examine the neural substrates associated with this abnormality and its role in the etiology and maintenance of FM. PERSPECTIVE: Muscle tenderness is the hallmark of FM, but the findings of this study and others suggest that persons with FM display sensitivity to a number of sensory stimuli. These findings suggest that FM is associated with a global central nervous system augmentation of sensory information. These findings may also help to explain why persons with FM display a number of comorbid physical symptoms other than pain.

Glass JM, Park DC, Minear M, Crofford LJ. · Institute for Social Research, University of Michigan, 426 Thompson Street, Ann Arbor, MI 48106, United States. · J Psychosom Res. · Pubmed #15865951 No free full text.

Abstract: OBJECTIVE: The aim of this study was to investigate memory beliefs and their relationship to actual memory function in fibromyalgia (FM) patients. METHODS: Twenty-three FM patients, 23 age- and education-matched controls, and 22 older controls completed the Metamemory in Adulthood (MIA) questionnaire, which assessed beliefs about seven aspects of memory function. Group differences on the seven scales were assessed, and scores on the capacity scale were correlated with objective memory performance. RESULTS: FM patients reported lower memory capacity and more memory deterioration than did either control group. Patients reported lower control or self-efficacy over memory, higher achievement motivation, higher strategy use, and higher anxiety about memory than age-matched controls did. Among the patients, perceived capacity, achievement motivation, and self-efficacy were significantly correlated with objective memory performance on a recall task. CONCLUSION: FM patients' complaints about memory function have some accuracy.

Park DC, Glass JM, Minear M, Crofford LJ. · Department of Psychology, University of Michigan, Ann Arbor 48109, USA. · Arthritis Rheum. · Pubmed #11592377 links to  free full text

Abstract: OBJECTIVE: To evaluate fibromyalgia (FM) patients for the presence of cognitive deficits and to test the hypothesis that abnormalities would fit a model of cognitive aging. METHODS: We studied 3 groups of patients: FM patients without concomitant depression and in the absence of medications known to affect cognitive function (n = 23), age- and education-matched controls (n = 23), and education-matched older controls who were individually matched to be 20 years older (+/- 3 years) than the FM patients (n = 22). We measured speed of information processing, working memory function, free recall, recognition memory, verbal fluency, and vocabulary. We correlated performance on cognitive tasks with FM symptoms, including depression, anxiety, pain, and fatigue. We also determined if memory complaints were correlated with cognitive performance. RESULTS: As expected, older controls performed more poorly than younger controls on speed of processing, working memory, free recall, and verbal fluency. FM patients performed more poorly than age-matched controls on all measures, with the exception of processing speed. FM patients performed much like older controls, except that they showed better speed of processing and poorer vocabulary. Impaired cognitive performance in FM patients correlated with pain complaints, but not with depressive or anxiety symptoms. FM patients reported more memory problems than did the older and younger controls, and these complaints correlated with poor cognitive performance. CONCLUSION: Cognitive impairment in FM patients, particularly memory and vocabulary deficits, are documented in the study. Nevertheless, the intact performance on measures of information processing speed suggests that the cognitive deficits are not global. FM patients' complaints about their memory are likely to be legitimate, since their memory function is not age appropriate.