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fibromyalgia and the pituitary

Olivia C Eller-Smith, Andrea L Nicol, Julie A Christianson
Centralized pain syndromes are associated with changes within the central nervous system that amplify peripheral input and/or generate the perception of pain in the absence of a noxious stimulus. Examples of idiopathic functional disorders that are often categorized as centralized pain syndromes include fibromyalgia, chronic pelvic pain syndromes, migraine, and temporomandibular disorder. Patients often suffer from widespread pain, associated with more than one specific syndrome, and report fatigue, mood and sleep disturbances, and poor quality of life...
2018: Frontiers in Cellular Neuroscience
Ernesto Barceló-Martinez, Melissa Gelves-Ospina, Edgar Navarro Lechuga, Ricardo F Allegri, Erick Orozco-Acosta, Juan C Benítez-Agudelo, Alexandra León-Jacobus, Néstor F Román
OBJECTIVE: To describe the relationship between neuropsychological variables and serum cortisol levels as a measure of physiological stress in patients with fibromyalgia. METHODOLOGY: A sample of 60 women was intentionally selected: 30 with Fibromyalgia diagnosis and 30 with normal controls. Cortisol levels were determined using two blood samples (AM and PM) and a neuropsychological and emotional battery was applied with a standardized protocol in Colombian population to evaluate different cognitive domains...
January 2018: Actas Españolas de Psiquiatría
Eline Coppens, Stefan Kempke, Peter Van Wambeke, Stephan Claes, Bart Morlion, Patrick Luyten, Lukas Van Oudenhove
OBJECTIVE: Hypothalamic-pituitary-adrenal (HPA) axis dysfunction may play a role in fibromyalgia (FM) pathogenesis, but remains understudied in this disorder. Furthermore, early childhood adversities (ECA) are common in FM, but whether they moderate stress reactivity is unknown. Hence, we investigated cortisol and subjective responses to acute psychosocial stress in FM and controls, while adjusting for ECA. METHODS: Twenty-seven female FM patients and 24 age-matched female controls were recruited in a tertiary care center and through advertisements, respectively...
December 11, 2017: Psychosomatic Medicine
Sanam Kia, Ernet Choy
Fibromyalgia syndrome (FMS) is a chronic condition with unknown aetiology. The pathophysiology of the disease is incompletely understood; despite advances in our knowledge with regards to abnormal central and peripheral pain processing, and hypothalamo-pituitary-adrenal dysfunction, there is no clear specific pathophysiological therapeutic target. The management of this complex condition has thus perplexed the medical community for many years, and several national and international guidelines have aimed to address this complexity...
May 8, 2017: Biomedicines
Johanna M Doerr, Susanne Fischer, Urs M Nater, Jana Strahler
OBJECTIVE: Fatigue is a defining characteristic and one of the most debilitating features of fibromyalgia syndrome (FMS). The mechanisms underlying different dimensions of fatigue in FMS remain unclear. The aim of the current study was to test whether stress-related biological processes and physical activity modulate fatigue experience. METHODS: Using an ambulatory assessment design, 26 female FMS patients reported general, mental, and physical fatigue levels at six time points per day for 14 consecutive days...
February 2017: Journal of Psychosomatic Research
Nikita N Burke, David P Finn, Brian E McGuire, Michelle Roche
A wealth of research over the past 2 decades has expanded our understanding of the impact of early-life adversity on physiological function and, consequently, health and wellbeing in later life. Early-life adversity increases the risk of developing a number of disorders, such as chronic pain, fibromyalgia, and irritable bowel syndrome. Although much of the research has examined the impact of physical maltreatment, an increasing number of studies have been published over the past few years examining the effect of childhood psychological stress and trauma on the development of various types of chronic pain conditions...
June 2017: Journal of Neuroscience Research
Nadine Skoluda, Alexandra Linnemann, Urs M Nater
Awakening responses in salivary cortisol (CAR) and alpha-amylase (AAR) constitute proxies of morning activation patterns of the hypothalamic-pituitary-adrenal axis and autonomic nervous system, respectively. Previous studies suggest that the CAR is decreased at weekends and at late awakening. However, it is insufficiently studied (a) whether this also applies to the AAR and (b) whether week(end)-day and awakening time interact with each other. Using an ecological momentary assessment design, 48 healthy young adults (60% women) were investigated over a 7-d period (Study 1), and 27 chronic pain patients diagnosed with fibromyalgia syndrome were examined over a 14-d period (Study 2)...
May 2016: Stress: the International Journal on the Biology of Stress
Harald Murck
Depressive syndromes are a group of heterogeneous disorders. Atypical depression (AD) with reversed vegetative signs, such as hyperphagia or hypersomnia, is traditionally neglected, demonstrated by the fact that in the most widely used depression scales, such as the Hamilton Depression Scale (HAMD), melancholic symptoms have a specific weight, while, by contrast, reversed vegetative signs are not included. However, epidemiologically and phenomenologically related disorders to AD do exist, such as somatoform disorders, neurasthenia (chronic fatigue syndrome) and fibromyalgia (FM)...
August 2003: Acta Neuropsychiatrica
B Bortolato, M Berk, M Maes, R S McIntyre, A F Carvalho
Fibromyalgia (FM) is a prevalent disorder defined by the presence of chronic widespread pain in association with fatigue, sleep disturbances and cognitive dysfunction. Recent studies indicate that bipolar spectrum disorders frequently co-occur in individuals with FM. Furthermore, shared pathophysiological mechanisms anticipate remarkable phenomenological similarities between FM and BD. A comprehensive search of the English literature was carried out in the Pubmed/MEDLINE database through May 10th, 2015 to identify unique references pertaining to the epidemiology and shared pathophysiology between FM and bipolar disorder (BD)...
2016: Current Molecular Medicine
Danelia Mendieta, Dora Luz De la Cruz-Aguilera, Maria Isabel Barrera-Villalpando, Enrique Becerril-Villanueva, Rodrigo Arreola, Erick Hernández-Ferreira, Sonia Mayra Pérez-Tapia, Gilberto Pérez-Sánchez, María Eugenia Garcés-Alvarez, Lucinda Aguirre-Cruz, Marco Antonio Velasco-Velázquez, Lenin Pavón
Fibromyalgia (FM) is a chronic disease that has been linked to inflammatory reactions and changes in the systemic levels of proinflammatory cytokines that modulate responses in the sympathetic nervous system and hypothalamic-pituitary-adrenal axis. We found that concentrations of IL-6 and IL-8 were elevated in FM patients. Both cytokines correlated with clinical scores, suggesting that IL-6 and IL-8 have additive or synergistic effects in perpetuating the chronic pain in FM patients. These findings indicate that IL-6 and IL-8 are two of the most constant inflammatory mediators in FM and that their levels correlate significantly with the severity of symptoms...
January 15, 2016: Journal of Neuroimmunology
Susanne Fischer, Johanna M Doerr, Jana Strahler, Ricarda Mewes, Kati Thieme, Urs M Nater
OBJECTIVE: Although fibromyalgia syndrome (FMS) is a chronic condition, its cardinal symptom pain is known to fluctuate over the day. Stress has often been claimed to exacerbate pain; however, there is barely any evidence on whether or not this is true on a day-to-day basis (and, alternatively, on whether pain leads to increased stress levels). Using an ecologically valid measurement design, we tested whether and how stress and pain are intertwined in participants with FMS. We additionally examined the role of the two major stress-responsive systems, the hypothalamic-pituitary-adrenal axis and the autonomic nervous system, as potential mediators of this relationship...
January 2016: Psychoneuroendocrinology
Aysun Genc, Birkan Sonel Tur, Yesim Kurtais Aytur, Derya Oztuna, Murat Faik Erdogan
[Purpose] The hypothalamic-pituitary-adrenal (HPA) axis in the etiopathogenesis of fibromyalgia is not clear. This study aimed to analyze the effects of a 6-week aerobic exercise program on the HPA axis in patients with fibromyalgia and to investigate the effects of this program on the disease symptoms, patients' fitness, disability, and quality of life. [Subjects and Methods] Fifty fibromyalgia patients were randomized to Group 1 (stretching and flexibility exercises at home for 6 weeks) and Group 2 (aerobic exercise three times a week and the same at-home exercises as Group 1 for 6 weeks)...
July 2015: Journal of Physical Therapy Science
Richard H Gracely, Petra Schweinhardt
Central sensitivity syndromes (CSS) share features of similar multiple symptoms, virtually unknown mechanisms and lack of effective treatments. The CSS nomenclature was chosen over alternatives because it focused on a putative physiological mechanism of central sensitization common to disorders such as fibromyalgia, irritable bowel syndrome, vulvodynia and temporomandibular disorder. Increasing evidence from multiple biological systems suggests a further development. In this new model central sensitization is part of a ensemble that includes also the symptoms of widespread pain, fatigue, unrefreshing sleep and dyscognition...
2015: Current Rheumatology Reviews
Chi-Fei Wang, Gabriella Russell, Gary R Strichartz, Ging-Kuo Wang
BACKGROUND: Duloxetine is an antidepressant effective for major depressive disorder and also the alleviation of pain for patients with diabetic peripheral neuropathy, chronic musculoskeletal pain, and fibromyalgia. How duloxetine works in pain relief remains unknown. In this study, we address whether duloxetine could act as an analgesic via systemic and local applications. METHODS: Efficacies of bupivacaine and duloxetine applied subcutaneously at the incision site against acute postoperative pain were compared after rat skin incision...
August 2015: Anesthesia and Analgesia
Graziella F Romano, Simona Tomassi, Alice Russell, Valeria Mondelli, Carmine M Pariante
There is an increasing interest in understanding the biological mechanism underpinning fibromyalgia (FM) and chronic fatigue syndrome (CFS). Despite the presence of mixed findings in this area, a few biological systems have been consistently involved, and the increasing number of studies in the field is encouraging. This chapter will focus on inflammatory and oxidative stress pathways and on the neuroendocrine system, which have been more commonly examined. Chronic inflammation, together with raised levels of oxidative stress and mitochondrial dysfunction, has been increasingly associated with the manifestation of symptoms such as pain, fatigue, impaired memory, and depression, which largely characterise at least some patients suffering from CFS and FM...
2015: Advances in Psychosomatic Medicine
Leo Galland
The human gut microbiome impacts human brain health in numerous ways: (1) Structural bacterial components such as lipopolysaccharides provide low-grade tonic stimulation of the innate immune system. Excessive stimulation due to bacterial dysbiosis, small intestinal bacterial overgrowth, or increased intestinal permeability may produce systemic and/or central nervous system inflammation. (2) Bacterial proteins may cross-react with human antigens to stimulate dysfunctional responses of the adaptive immune system...
December 2014: Journal of Medicinal Food
Akiko Okifuji, Bradford D Hare
Fibromyalgia syndrome (FMS) is a common chronic musculoskeletal pain disorder of unknown etiology and characterized by generalized body pain, hyperalgesia, and other functional and emotional comorbidities. Despite extensive research, no treatment modality is effective for all FMS patients. In this paper, we briefly review the history of FMS and diagnostic criteria, and potential pathophysiological mechanisms including central pain modulation, neurotransmitters, sympatho-adrenal and hypothalamic-pituitary-adrenal systems and peripheral muscle issues...
December 2013: Pain and Therapy
Angeline S Thiagarajah, Laura E Eades, Prabakar R Thomas, Emma K Guymer, Eric F Morand, David M Clarke, Michelle Leech
Dysfunction of the hypothalamic-pituitary-adrenal axis, particularly the glucocorticoid receptor, is a commonly implicated link between stress and psychopathology. GR abnormalities are frequently reported in depression, and these anomalies must be resolved before depressive symptoms remit. This biological finding is rendered clinically relevant by the knowledge that only select antidepressants alter GR function. The relationship between GR dysfunction and other diseases associated with psychiatric stress, such as post-traumatic stress disorder (PTSD) and fibromyalgia, is also documented...
July 29, 2014: Brain Research
Ziyue Liu, Anne R Cappola, Leslie J Crofford, Wensheng Guo
The hypothalamic-pituitary-adrenal (HPA) axis is crucial in coping with stress and maintaining homeostasis. Hormones produced by the HPA axis exhibit both complex univariate longitudinal profiles and complex relationships among different hormones. Consequently, modeling these multivariate longitudinal hormone profiles is a challenging task. In this paper, we propose a bivariate hierarchical state space model, in which each hormone profile is modeled by a hierarchical state space model, with both population-average and subject-specific components...
January 1, 2014: Journal of the American Statistical Association
César Fernández-de-las-Peñas, Cecilia Peñacoba-Puente, Margarita Cigarán-Méndez, Lourdes Díaz-Rodríguez, Belén Rubio-Ruiz, Manuel Arroyo-Morales
OBJECTIVE: Stress can play an important role in etiology of fibromyalgia syndrome (FMS) by activating the hypothalamic-pituitary-adrenal (HPA) axis, the sympathetic nervous system (SNS), and altering the immune system. The current study examined the influence of catechol-O-methyltransferase (COMT) Val158Met genotypes on salivary markers of HPA axis (cortisol), SNS (α-amylase), and immune (IgA) systems in women with FMS. METHODS: Seventy-six women with FMS diagnosed according to the American College of Rheumatology criteria participated in the study...
March 2014: Clinical Journal of Pain
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