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Autoimmune sleep disorders

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https://www.readbyqxmd.com/read/28738331/future-perspectives-in-sleep-medicine
#1
Leh-Kiong Anne Huon, Christian Guilleminault
"Sleep Medicine" is now a specialty in its own right. Currently, there is increasing recognition of the very negative impact sleep disorders have on learning, education, safety, and quality of life. Technological advances will help us to break down diagnoses (e.g., narcolepsy has now been subdivided into types 1 and 2, depending upon the hypocretin levels in the spinal fluid) and to discover relationships to other bodily systems (e.g., type 1 narcolepsy potentially being an autoimmune disorder). The modern lifestyle of many, as characterized by a shortening of sleep periods, shift work, jet lag, and the need to be constantly available, means that advances in sleep medicine may result in a major understanding of more balanced "work-rest lifestyle" modifications...
2017: Advances in Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28726523/investigational-therapies-for-the-treatment-of-narcolepsy
#2
Stefano de Biase, Annacarmen Nilo, Gian Luigi Gigli, Mariarosaria Valente
Narcolepsy is a chronic sleep disorder characterized by a pentad of excessive daytime sleepiness (EDS), cataplexy, sleep paralysis, hypnagogic/hypnopompic hallucinations, and disturbed nocturnal sleep. While non-pharmacological treatments are sometimes helpful, more than 90% of narcoleptic patients require a pharmacological treatment. Areas covered: The present review is based on an extensive Internet and PubMed search from 1994 to 2017. It is focused on drugs currently in development for the treatment of narcolepsy...
July 20, 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/28726005/the-role-of-sleep-in-pemphigus-a-review-of-mechanisms-and-perspectives
#3
Matheus Negrao Pedroni, Camila Hirotsu, Adriana Maria Porro, Sergio Tufik, Monica Levy Andersen
Pemphigus is an autoimmune bullous disease that causes the development of blisters and erosions on the skin and/or mucosa. Its inflammatory process is mediated by cytokines, which interact with sleep in a bidirectional manner. Pain, a frequent symptom due to pemphigus lesions, is well known to impair sleep quality. Depression is also associated with pemphigus and pro-inflammatory cytokines and may impair sleep. Additionally, a common relationship among other dermatological diseases and sleep has increasingly been described...
July 19, 2017: Archives of Dermatological Research
https://www.readbyqxmd.com/read/28681964/a-shared-comparison-of-diabetes-mellitus-and-neurodegenerative-disorders
#4
Mahmoud Morsi, Ahmed Maher, Ahmed Metwally, Omnia Abo-Elmagd, Dina Johar, Larry Bernstein
Diabetes Mellitus (DM) is one of the most common diseases in the world population, associated with obesity, pancreatic endocrine changes, cardiovascular disease, renal glomerular disease, cerebrovascular disease, peripheral neuropathy, neurodegenerative disease, retinal disease, sleep apnea, some of which are bundled into the metabolic syndrome. The main characteristic of this disease is hyperglycemia, and often with albuminuria. Nevertheless, the classic features, with ketoacidosis in the extreme, are only a first layer of description of this condition...
July 6, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28670128/clinical-features-of-limbic-encephalitis-with-lgi1-antibody
#5
Meiling Wang, Xiaoyu Cao, Qingxin Liu, Wenbin Ma, Xiaoqian Guo, Xuewu Liu
OBJECTIVE: The objective of this study was to analyze the clinical manifestation, course, evolution, image manifestation, and treatments of LGI1 limbic encephalitis (LE). PATIENTS AND METHODS: Studies confirmed that LE with the complex antibody of voltage-gated potassium channels is LGI1 LE. Since then, LE cases have been reported. In this study, 10 typical LE cases were searched in PubMed. These cases and one additional case, which we reported herein, were retrospectively analyzed...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28601291/absence-of-autoreactive-cd4-t-cells-targeting-hla-dqa1-01-02-dqb1-06-02-restricted-hypocretin-orexin-epitopes-in-narcolepsy-type-1-when-detected-by-elispot
#6
Birgitte Rahbek Kornum, Kristoffer Sølvsten Burgdorf, Anja Holm, Henrik Ullum, Poul Jennum, Stine Knudsen
Narcolepsy type 1, a neurological sleep disorder strongly associated with Human Leukocyte Antigen (HLA-)DQB1*06:02, is caused by the loss of hypothalamic neurons producing the wake-promoting neuropeptide hypocretin (hcrt, also known as orexin). This loss is believed to be caused by an autoimmune reaction. To test whether hcrt itself could be a possible target in the autoimmune attack, CD4(+) T-cell reactivity towards six different 15-mer peptides from prepro-hypocretin with high predicted affinity to the DQA1*01:02/DQB1*06:02 MHC class II dimer was tested using EliSpot in a cohort of 22 narcolepsy patients with low CSF hcrt levels, and 23 DQB1*06:02 positive healthy controls...
August 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28542592/fatigue-in-patients-with-neuromyelitis-optica-spectrum-disorder-and-its-impact-on-quality-of-life
#7
Jin Myoung Seok, Misong Choi, Eun Bin Cho, Hye Lim Lee, Byoung Joon Kim, Kwang Ho Lee, Pamela Song, Eun Yeon Joo, Ju-Hong Min
Fatigue is a prevalent symptom and major burden in neuroimmunological diseases. In neuromyelitis optica spectrum disorder (NMOSD), a severe autoimmune central nervous system (CNS) inflammatory disease with autoantibodies reactive to aquaporin-4, there are few reports about fatigue and quality of life (QOL). We aimed to evaluate the severity of fatigue and its relationship with QOL in patients with NMOSD. We prospectively studied patients with NMOSD who were in remission and seropositive for anti-aquaporin-4 antibody, and they were divided into 2 groups based on the presence of fatigue assessed using the Functional Assessment of Chronic Illness Therapy-fatigue score...
2017: PloS One
https://www.readbyqxmd.com/read/28460015/rare-missense-mutations-in-p2ry11-in-narcolepsy-with-cataplexy
#8
Matilda Degn, Yves Dauvilliers, Karin Dreisig, Régis Lopez, Corinne Pfister, Sylvain Pradervand, Birgitte Rahbek Kornum, Mehdi Tafti
The sleep disorder narcolepsy with cataplexy is characterized by a highly specific loss of hypocretin (orexin) neurons, leading to the hypothesis that the condition is caused by an immune or autoimmune mechanism. All genetic variants associated with narcolepsy are immune-related. Among these are single nucleotide polymorphisms in the P2RY11-EIF3G locus. It is unknown how these genetic variants affect narcolepsy pathogenesis and whether the effect is directly related to P2Y11 signalling or EIF3G function. Exome sequencing in 18 families with at least two affected narcolepsy with cataplexy subjects revealed non-synonymous mutations in the second exon of P2RY11 in two families, and P2RY11 re-sequencing in 250 non-familial cases and 135 healthy control subjects revealed further six different non-synonymous mutations in the second exon of P2RY11 in seven patients...
June 1, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28424564/new-developments-in-the-management-of-narcolepsy
#9
REVIEW
Vivien C Abad, Christian Guilleminault
Narcolepsy is a life-long, underrecognized sleep disorder that affects 0.02%-0.18% of the US and Western European populations. Genetic predisposition is suspected because of narcolepsy's strong association with HLA DQB1*06-02, and genome-wide association studies have identified polymorphisms in T-cell receptor loci. Narcolepsy pathophysiology is linked to loss of signaling by hypocretin-producing neurons; an autoimmune etiology possibly triggered by some environmental agent may precipitate hypocretin neuronal loss...
2017: Nature and Science of Sleep
https://www.readbyqxmd.com/read/28306346/risk-factors-for-central-serous-chorioretinopathy-multivariate-approach-in-a-case-control-study
#10
Irini Chatziralli, Stamatina A Kabanarou, Efstratios Parikakis, Alexandros Chatzirallis, Tina Xirou, Panagiotis Mitropoulos
PURPOSE: The purpose of this prospective study was to investigate the potential risk factors associated independently with central serous retinopathy (CSR) in a Greek population, using multivariate approach. MATERIALS AND METHODS: Participants in the study were 183 consecutive patients diagnosed with CSR and 183 controls, matched for age. All participants underwent complete ophthalmological examination and information regarding their sociodemographic, clinical, medical and ophthalmological history were recorded, so as to assess potential risk factors for CSR...
March 17, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28268468/detection-of-myasthenia-gravis-using-electrooculography-signals
#11
T Liang, M I Boulos, B J Murray, S Krishnan, H Katzberg, K Umapathy
Myasthenia gravis (MG) is an autoimmune neuromuscular disorder resulting from skeletal muscle weakness and fatigue. An early common symptom is fatigable weakness of the extrinsic ocular muscles; if symptoms remain confined to the ocular muscles after a few years, this is classified as ocular myasthenia gravis (OMG). Diagnosis of MG when there are mild, isolated ocular symptoms can be difficult, and currently available diagnostic techniques are insensitive, non-specific or technically cumbersome. In addition, there are no accurate biomarkers to follow severity of ocular dysfunction in MG over time...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28244020/air-travel-circadian-rhythms-hormones-and-autoimmunity
#12
REVIEW
J Torres-Ruiz, A Sulli, M Cutolo, Y Shoenfeld
Biological rhythms are fundamental for homeostasis and have recently been involved in the regulatory processes of various organs and systems. Circadian cycle proteins and hormones have a direct effect on the inflammatory response and have shown pro- or anti-inflammatory effects in animal models of autoimmune diseases. The cells of the immune system have their own circadian rhythm, and the light-dark cycle directly influences the inflammatory response. On the other hand, patients with autoimmune diseases characteristically have sleep disorders and fatigue, and in certain disease, such as rheumatoid arthritis (RA), a frank periodicity in the signs and symptoms is recognized...
August 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28226641/detection-of-myasthenia-gravis-using-electrooculography-signals
#13
T Liang, M I Boulos, B J Murray, S Krishnan, H Katzberg, K Umapathy, T Liang, M I Boulos, B J Murray, S Krishnan, H Katzberg, K Umapathy, M I Boulos, K Umapathy, H Katzberg, S Krishnan, T Liang, B J Murray
Myasthenia gravis (MG) is an autoimmune neuromuscular disorder resulting from skeletal muscle weakness and fatigue. An early common symptom is fatigable weakness of the extrinsic ocular muscles; if symptoms remain confined to the ocular muscles after a few years, this is classified as ocular myasthenia gravis (OMG). Diagnosis of MG when there are mild, isolated ocular symptoms can be difficult, and currently available diagnostic techniques are insensitive, non-specific or technically cumbersome. In addition, there are no accurate biomarkers to follow severity of ocular dysfunction in MG over time...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28179647/narcolepsy
#14
REVIEW
Birgitte R Kornum, Stine Knudsen, Hanna M Ollila, Fabio Pizza, Poul J Jennum, Yves Dauvilliers, Sebastiaan Overeem
Narcolepsy is a chronic sleep disorder that has a typical onset in adolescence and is characterized by excessive daytime sleepiness, which can have severe consequences for the patient. Problems faced by patients with narcolepsy include social stigma associated with this disease, difficulties in obtaining an education and keeping a job, a reduced quality of life and socioeconomic consequences. Two subtypes of narcolepsy have been described (narcolepsy type 1 and narcolepsy type 2), both of which have similar clinical profiles, except for the presence of cataplexy, which occurs only in patients with narcolepsy type 1...
February 9, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/28164150/vigilance-at-home-longitudinal-analyses-of-neighborhood-safety-perceptions-and-health
#15
Jennifer W Robinette, Susan T Charles, Tara L Gruenewald
Feeling unsafe in one's neighborhood is associated with poor health. This relation may be conferred through multiple pathways, including greater psychological distress and health behaviors that are associated with poorer health and perceptions of neighborhood safety. Women and older adults often report feeling less safe in their environments despite having a lower risk of victimization than men and younger adults, and it is unclear whether these differences influence the health-perception relationship. We used the Midlife in the United States study to test whether baseline neighborhood safety perceptions would be associated with chronic health conditions 10 years later, and whether this relation differs by gender, age, and individual and neighborhood SES...
December 2016: SSM—Population Health
https://www.readbyqxmd.com/read/28107375/narcolepsy-type-1-is-associated-with-a-systemic-increase-and-activation-of-regulatory-t-cells-and-with-a-systemic-activation-of-global-t-cells
#16
Michel Lecendreux, Guillaume Churlaud, Fabien Pitoiset, Armelle Regnault, Tu Anh Tran, Roland Liblau, David Klatzmann, Michelle Rosenzwajg
Narcolepsy is a rare neurologic disorder characterized by excessive daytime sleepiness, cataplexy and disturbed nocturnal sleep patterns. Narcolepsy type 1 (NT1) has been shown to result from a selective loss of hypothalamic hypocretin-secreting neurons with patients typically showing low CSF-hypocretin levels (<110 pg/ml). This specific loss of hypocretin and the strong association with the HLA-DQB1*06:02 allele led to the hypothesis that NT1 could be an immune-mediated pathology. Moreover, susceptibility to NT1 has recently been associated with several pathogens, particularly with influenza A H1N1 virus either through infection or vaccination...
2017: PloS One
https://www.readbyqxmd.com/read/27922195/the-neuropeptide-cortistatin-attenuates-experimental-autoimmune-myocarditis-via-inhibition-of-cardiomyogenic-t-cell-driven-inflammatory-responses
#17
Virginia Delgado-Maroto, Clara P Falo, Irene Forte-Lago, Norma Adan, Maria Morell, Elena Maganto-Garcia, Gema Robledo, Francisco O'Valle, Andrew H Lichtman, Elena Gonzalez-Rey, Mario Delgado
BACKGROUND AND PURPOSE: Myocarditis is an inflammatory and autoimmune cardiovascular disease that causes dilated myocardiopathy and is responsible for high morbidity and mortality worldwide. Cortistatin is a neuropeptide produced by neurons and cells of the immune and vascular systems. Besides its action in locomotor activity and sleep, cortistatin inhibits inflammation in different experimental models of autoimmune diseases. However, its role in inflammatory cardiovascular disorders is unexplored...
February 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27864522/comorbidity-between-central-disorders-of-hypersomnolence-and-immune-based-disorders
#18
Lucie Barateau, Régis Lopez, Isabelle Arnulf, Michel Lecendreux, Patricia Franco, Xavier Drouot, Smaranda Leu-Semenescu, Isabelle Jaussent, Yves Dauvilliers
OBJECTIVE: To assess and compare the frequencies of personal and family history of autoimmune diseases (AID), autoinflammatory disorders (ID), and allergies in a population of patients, adults and children, with narcolepsy type 1 (NT1), narcolepsy type 2 (NT2), and idiopathic hypersomnia (IH), 3 central hypersomnia disorders, and healthy controls. METHODS: Personal and family history of AID, ID, and allergies were assessed by questionnaire and medical interview in a large cohort of 450 consecutive adult patients (206 NT1, 106 NT2, 138 IH) and 95 pediatric patients (80 NT1) diagnosed according to the third International Classification of Sleep Disorders criteria in national reference centers for narcolepsy in France and 751 controls (700 adults, 51 children) from the general population...
January 3, 2017: Neurology
https://www.readbyqxmd.com/read/27855167/assessment-of-olfactory-function-in-mapt-associated-neurodegenerative-disease-reveals-odor-identification-irreproducibility-as-a-non-disease-specific-general-characteristic-of-olfactory-dysfunction
#19
Katerina Markopoulou, Bruce A Chase, Piotr Robowski, Audrey Strongosky, Ewa Narożańska, Emilia J Sitek, Mariusz Berdynski, Maria Barcikowska, Matt C Baker, Rosa Rademakers, Jarosław Sławek, Christine Klein, Katja Hückelheim, Meike Kasten, Zbigniew K Wszolek
Olfactory dysfunction is associated with normal aging, multiple neurodegenerative disorders, including Parkinson's disease, Lewy body disease and Alzheimer's disease, and other diseases such as diabetes, sleep apnea and the autoimmune disease myasthenia gravis. The wide spectrum of neurodegenerative disorders associated with olfactory dysfunction suggests different, potentially overlapping, underlying pathophysiologies. Studying olfactory dysfunction in presymptomatic carriers of mutations known to cause familial parkinsonism provides unique opportunities to understand the role of genetic factors, delineate the salient characteristics of the onset of olfactory dysfunction, and understand when it starts relative to motor and cognitive symptoms...
2016: PloS One
https://www.readbyqxmd.com/read/27821550/high-dimensional-single-cell-analysis-reveals-the-immune-signature-of-narcolepsy
#20
Felix J Hartmann, Raphaël Bernard-Valnet, Clémence Quériault, Dunja Mrdjen, Lukas M Weber, Edoardo Galli, Carsten Krieg, Mark D Robinson, Xuan-Hung Nguyen, Yves Dauvilliers, Roland S Liblau, Burkhard Becher
Narcolepsy type 1 is a devastating neurological sleep disorder resulting from the destruction of orexin-producing neurons in the central nervous system (CNS). Despite its striking association with the HLA-DQB1*06:02 allele, the autoimmune etiology of narcolepsy has remained largely hypothetical. Here, we compared peripheral mononucleated cells from narcolepsy patients with HLA-DQB1*06:02-matched healthy controls using high-dimensional mass cytometry in combination with algorithm-guided data analysis. Narcolepsy patients displayed multifaceted immune activation in CD4(+) and CD8(+) T cells dominated by elevated levels of B cell-supporting cytokines...
November 14, 2016: Journal of Experimental Medicine
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