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Smoking in multiple sclerosis

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https://www.readbyqxmd.com/read/27919478/attitudes-to-cannabis-and-patterns-of-use-among-canadians-with-multiple-sclerosis
#1
Emma Banwell, Bennis Pavisian, Liesly Lee, Anthony Feinstein
BACKGROUND: Canada has the highest incidence of MS worldwide. Anecdotal evidence reveals that people with MS smoke, ingest or vaporize cannabis for a multiplicity of reasons. With the legal situation in relation to use currently in flux, we undertook a study investigating patterns of use amongst people with MS and their attitudes towards the drug. METHODS: A consecutive sample of people with MS (n=246) attending a neurology (n=118) and a neuropsychiatry (n=107) clinic was enrolled and asked to complete a questionnaire containing demographic, disease and cannabis related variables...
November 2016: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/27918711/serum-cotinine-does-not-predict-neutralizing-antibodies-against-interferon-beta-in-an-austrian-ms-cohort
#2
Michael Auer, Harald Hegen, Thomas Luft, Gabriel Bsteh, Anna Fogdell-Hahn, Amy Loercher, Florian Deisenhammer
Previous epidemiologic studies showed an increased risk of neutralizing antibody (NAb) development against Interferon beta in multiple sclerosis patients who smoke. Cotinine is an easily detectable metabolite of nicotine and, therefore, can be used as an objective surrogate marker for smoking status. We measured cotinine levels in NAb-positive and NAb-negative patients to find a potential association of nicotine consumption and NAb development. Cotinine was measured in 37 patients with known smoking status and in 123 patients with unknown smoking status, all of whom were routinely tested for NAb...
December 2016: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/27876009/lifestyle-medication-and-socio-demographic-determinants-of-mental-and-physical-health-related-quality-of-life-in-people-with-multiple-sclerosis
#3
George A Jelinek, Alysha M De Livera, Claudia H Marck, Chelsea R Brown, Sandra L Neate, Keryn L Taylor, Tracey J Weiland
BACKGROUND: Health-related quality of life (QOL) is a key outcome for people with multiple sclerosis (MS). While modifiable lifestyle factors, like smoking, physical activity and vitamin D, have strong associations with development and progression of MS, few studies have examined such associations with QOL. METHODS: Using patient-reported data from 2312 people with MS from 54 countries, regression models explored associations of socio-demographic, therapeutic and lifestyle factors with QOL, using the Multiple Sclerosis Quality of Life-54 (MSQOL-54)...
November 22, 2016: BMC Neurology
https://www.readbyqxmd.com/read/27834737/waterpipe-smoking-associated-with-multiple-sclerosis-a-population-based-incident-case-control-study
#4
Ibrahim Abdollahpour, Saharnaz Nedjat, Mohammad Ali Sahraian, Mohammad Ali Mansournia, Petr Otahal, Ingrid van der Mei
BACKGROUND: While cigarette and passive smoking have been identified as modifiable risk factors for multiple sclerosis (MS), there is no report regarding Waterpipe smoking-MS association. OBJECTIVE: We examined the association of Waterpipe, tobacco, and passive smoking with MS. METHODS: Population-based incident case-control study in Iran with 547 incident cases and 1057 general population controls (7 August 2013-17 February 2015). Logistic regression model was used...
November 10, 2016: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/27772763/smoking-increases-the-risk-of-progression-in-multiple-sclerosis-a-cohort-study-in-queensland-australia
#5
Cullen M O'Gorman, Simon A Broadley
BACKGROUND: Cigarette smoking has been associated with increased risk of progressive multiple sclerosis (MS). The effect of smoking status on risk and timing of disease progression in patients with MS in Queensland, Australia has not been established. METHODS: A clinical cohort of 646 cases (531 females, 115 males) were followed from first clinic attendance to onset of clinically determined progressive disease. Progression risk was analysed with gender, age, age of onset, exposure to disease modifying therapy, and smoking status as covariates in a Cox proportional hazards analysis...
November 15, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27683852/physical-activity-and-the-incidence-of-multiple-sclerosis
#6
Kirsten S Dorans, Jennifer Massa, Tanuja Chitnis, Alberto Ascherio, Kassandra L Munger
OBJECTIVE: To study whether physical activity during adulthood or early life is associated with multiple sclerosis (MS) incidence in 2 prospective cohorts of women. METHODS: Women in the Nurses' Health Study (NHS) (n = 81,723; 1986-2004) and NHS II (n = 111,804; 1989-2009) reported recent physical activity at baseline and in selected follow-up questionnaires. Using this information, we calculated total metabolic equivalent hours of physical activity per week, a measure of energy expenditure...
October 25, 2016: Neurology
https://www.readbyqxmd.com/read/27672136/risk-of-venous-thromboembolism-in-neuromyelitis-optica-patients-hospitalized-for-acute-relapse
#7
Rebecca Straus Farber, Robert Gross, Elina Zakin, Michelle Fabian
BACKGROUND: Neuromyelitis optica spectrum disorder (NMOSD) patients may be at increased risk of venous thromboembolism (VTE) not only due to ambulatory disability but also due to systemic autoimmune and inflammatory mechanisms altering the hemostatic balance. OBJECTIVE: To compare the risk of VTE in NMOSD versus multiple sclerosis (MS) patients hospitalized for acute relapses. METHODS: Hospital admissions for MS or NMOSD exacerbations were retrospectively identified...
September 26, 2016: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/27663872/negative-interaction-between-smoking-and-ebv-in-the-risk-of-multiple-sclerosis-the-envims-study
#8
Kjetil Bjørnevik, Trond Riise, Inger Bostrom, Llaria Casetta, Marianna Cortese, Enrico Granieri, Trygve Holmøy, Margitta T Kampman, Anne-Marie Landtblom, Sandra Magalhaes, Maura Pugliatti, Christina Wolfson, Kjell-Morten Myhr
BACKGROUND: Results from previous studies on a possible interaction between smoking and Epstein-Barr virus (EBV) in the risk of multiple sclerosis (MS) are conflicting. OBJECTIVES: To examine the interaction between smoking and infectious mononucleosis (IM) in the risk of MS. METHODS: Within the case-control study on Environmental Factors In Multiple Sclerosis (EnvIMS), 1904 MS patients and 3694 population-based frequency-matched healthy controls from Norway, Italy, and Sweden reported on prior exposure to smoking and history of IM...
September 23, 2016: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/27652346/mendelian-randomization-shows-a-causal-effect-of-low-vitamin-d-on-multiple-sclerosis-risk
#9
Brooke Rhead, Maria Bäärnhielm, Milena Gianfrancesco, Amanda Mok, Xiaorong Shao, Hong Quach, Ling Shen, Catherine Schaefer, Jenny Link, Alexandra Gyllenberg, Anna Karin Hedström, Tomas Olsson, Jan Hillert, Ingrid Kockum, M Maria Glymour, Lars Alfredsson, Lisa F Barcellos
OBJECTIVE: We sought to estimate the causal effect of low serum 25(OH)D on multiple sclerosis (MS) susceptibility that is not confounded by environmental or lifestyle factors or subject to reverse causality. METHODS: We conducted mendelian randomization (MR) analyses using an instrumental variable (IV) comprising 3 single nucleotide polymorphisms found to be associated with serum 25(OH)D levels at genome-wide significance. We analyzed the effect of the IV on MS risk and both age at onset and disease severity in 2 separate populations using logistic regression models that controlled for sex, year of birth, smoking, education, genetic ancestry, body mass index at age 18-20 years or in 20s, a weighted genetic risk score for 110 known MS-associated variants, and the presence of one or more HLA-DRB1*15:01 alleles...
October 2016: Neurology. Genetics
https://www.readbyqxmd.com/read/27637959/the-epidemiology-of-multiple-sclerosis-insights-to-a-causal-cascade
#10
D S Goodin
MS-pathogenesis involves both genetic-susceptibility and environmental determinants. Three (or more) sequential environmental-factors are implicated. The first acts near birth, the second acts during childhood/adolescence, and the third acts subsequently. Two candidate factors (vitamin D deficiency and Epstein-Barr viral infection) seem particularly well-suited to the first two environmental-events but other factors (e.g., obesity and smoking behavior) seem also to be involved in the causal scheme. MS-pathogenesis can be modeled by incorporating both the environmental and genetic-factors into a causal scheme, which can then help to explain some of the changes in MS-epidemiology (e...
2016: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27572857/environmental-and-genetic-factors-in-pediatric-inflammatory-demyelinating-diseases
#11
Emmanuelle Waubant, Anne-Louise Ponsonby, Maura Pugliatti, Heather Hanwell, Ellen M Mowry, Rogier Q Hintzen
The onset of multiple sclerosis (MS) occurs in childhood in about 5% of all patients with MS. The disease in adults has a complex genetic and environmental inheritability. One of the main risk factors, also confirmed in pediatric MS, is HLA DRB1*1501 In addition to genetic factors, a large part of disease susceptibility in adults is conferred by environmental risk factors such as low vitamin D status, exposure to cigarette smoking, and remote Epstein-Barr virus (EBV) infection. In children, both exposure to cigarette smoking and prior EBV infection have been reported consistently as risk factors for MS...
August 30, 2016: Neurology
https://www.readbyqxmd.com/read/27560626/associations-of-lifestyle-medication-and-socio-demographic-factors-with-disability-in-people-with-multiple-sclerosis-an-international-cross-sectional-study
#12
George A Jelinek, Alysha M De Livera, Claudia H Marck, Chelsea R Brown, Sandra L Neate, Keryn L Taylor, Tracey J Weiland
OBJECTIVE: Emerging evidence links modifiable lifestyle risk factors to disease progression in multiple sclerosis (MS). We sought further evidence around this hypothesis through detailed analysis of the association with disability of lifestyle behaviours of a large international sample of people with MS. MATERIALS AND METHODS: A total of 2469 people with MS from 57 countries provided self-reported data via cross-sectional online survey on lifestyle (mostly with validated tools) and the primary outcome measure, disability (Patient Determined Disease Steps), categorised from 8 steps into 3 categories, mild, moderate and major disability...
2016: PloS One
https://www.readbyqxmd.com/read/27551240/symptom-co-occurrences-associated-with-smoking-in-individuals-with-relapsing-remitting-multiple-sclerosis
#13
Pamela Newland, Louise Flick, Hong Xian, Florian P Thomas
BACKGROUND: The impact of tobacco on the multiple sclerosis (MS) disease process and symptoms is complex and not clearly understood. Tobacco may be used to self-treat some symptoms but also seems to intensify others. Studies to date have not characterized co-occurring symptoms (symptom patterns) and their association with tobacco use. METHODS: This study describes tobacco use in patients with relapsing-remitting MS and associated symptoms and symptom co-occurrences...
July 2016: International Journal of MS Care
https://www.readbyqxmd.com/read/27491295/reactive-oxygen-species-in-organ-specific-autoimmunity
#14
Giulia Di Dalmazi, Jason Hirshberg, Daniel Lyle, Joudeh B Freij, Patrizio Caturegli
Reactive oxygen species (ROS) have been extensively studied in the induction of inflammation and tissue damage, especially as it relates to aging. In more recent years, ROS have been implicated in the pathogenesis of autoimmune diseases. Here, ROS accumulation leads to apoptosis and autoantigen structural changes that result in novel specificities. ROS have been implicated not only in the initiation of the autoimmune response but also in its amplification and spreading to novel epitopes, through the unmasking of cryptic determinants...
December 2016: Auto- Immunity Highlights
https://www.readbyqxmd.com/read/27472869/frequency-of-viral-infections-and-environmental-factors-in-multiple-sclerosis
#15
Mohammad Mahdi Eftekharian, Masoud Sabouri Ghannad, Mohammad Taheri, Ghodratollah Roshanaei, Mehrdokht Mazdeh, Mehrnoosh Musavi, Mona Bahmani Hormoz
OBJECTIVES: Multiple sclerosis (MS) is a complicated disease which occurs due to relationship between genes and environmental factors that causes tissue damage by autoimmune mechanisms.We investigated and illustrated the hypotheses correlated to the evidence of several putative environmental risk factors for MS onset and progression in this part of Iran. MATERIALS AND METHODS: Univariate logistic regression was used to detect the effects of environmental factors on the risk of MS...
June 8, 2016: Human Antibodies
https://www.readbyqxmd.com/read/27459462/epidemiology-of-major-neurodegenerative-diseases-in-women-contribution-of-the-nurses-health-study
#16
Kaitlin A Hagan, Kassandra L Munger, Alberto Ascherio, Francine Grodstein
OBJECTIVES: To review the contribution of the Nurses' Health Study (NHS) to identifying the role of lifestyle, diet, and genetic or biological factors in several neurodegenerative diseases, including cognitive decline, multiple sclerosis, Parkinson's disease, and amyotrophic lateral sclerosis. METHODS: We completed a narrative review of the publications of the NHS and NHS II between 1976 and 2016. RESULTS: In primary findings for cognitive function, higher intake of nuts, moderate alcohol consumption, and higher physical activity levels were associated with better cognitive function...
September 2016: American Journal of Public Health
https://www.readbyqxmd.com/read/27458599/no-association-of-tobacco-use-and-disease-activity-in-multiple-sclerosis
#17
Silje Kvistad, Kjell-Morten Myhr, Trygve Holmøy, Jūratė Šaltytė Benth, Kristin I Løken-Amsrud, Stig Wergeland, Antonie G Beiske, Kristian S Bjerve, Harald Hovdal, Finn Lilleås, Rune Midgard, Tom Pedersen, Søren J Bakke, Øivind Torkildsen
OBJECTIVE: To study whether tobacco use is associated with MRI and clinical disease activity in patients with multiple sclerosis (MS). METHODS: Prospective cohort study of 87 patients with relapsing-remitting MS originally included in a randomized placebo-controlled trial of omega-3 fatty acids in MS (the OFAMS Study). Serum levels of cotinine (biomarker of tobacco use) were analyzed at baseline and every 6 months for 2 years. MRI activity was assessed at baseline and monthly for 9 months and after 12 and 24 months...
August 2016: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/27428345/-cannabis-effects-in-the-central-nervous-system-therapeutic-societal-and-legal-consequences
#18
Víctor Manuel Rivera-Olmos, Marisela C Parra-Bernal
The consumption of marijuana extracted from Cannabis sativa and indica plants involves an important cultural impact in Mexico. Their psychological stimulatory effect is widely recognized; their biochemical and molecular components interact with CB1 and CB2 (endocannabinoid system) receptors in various central nervous system structures (CNS) and immune cells. The psychoactive element Δ-9-tetrahydrocannabinol (THC) can be reproduced synthetically. Systematic reviews show evidence of therapeutic effectiveness of therapeutic marijuana only for certain symptoms of multiple sclerosis (spasticity, spasms and pain), despite attempts for its widespread use, including refractory childhood epilepsy...
September 2016: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/27424509/smoking-as-a-risk-factor-for-developing-multiple-sclerosis-a-meta-analysis-of-observational-studies
#19
I Backhaus, A Mannocci, P H H M Lemmens, G La Torre
OBJECTIVE: The aim of this study was to improve and update the pool of available studies included in the previous meta-analyses, and to provide further evidence about smoking as a risk factor for MS. MATERIAL AND METHODS: PubMed and Scopus searches were undertaken to identify studies investigating the association between cigarette smoking and MS. Odds ratio (OR), relative risk (RR) together with 95% confidence intervals (CIs) were calculated for case-control and cohort studies and prevalence rate for cross sectional...
May 2016: La Clinica Terapeutica
https://www.readbyqxmd.com/read/27376037/the-environmental-risk-factors-in-multiple-sclerosis-susceptibility-a-case-control-study
#20
Vahid Shaygannejad, Nooshin Rezaie, Zamzam Paknahad, Freshteh Ashtari, Helia Maghzi
BACKGROUND: Multiple sclerosis (MS) is a demyelinating and degenerating disease which involves central nervous system. Environmental risk factors have a key role in MS susceptibility. Here we aim to investigate different risk factors effect on MS susceptibility in a large population of MS patients in Isfahan, Iran. MATERIALS AND METHODS: This study is a cross-sectional hospital-based study, which was conducted on a large group of MS patients registered in Kashani hospital and a control group from normal healthy population...
2016: Advanced Biomedical Research
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