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Smoking in multiple sclerosis

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https://www.readbyqxmd.com/read/28179539/smoking-reduces-circulating-cd26-hi-cd161-hi-mait-cells-in-healthy-individuals-and-patients-with-multiple-sclerosis
#1
Cecilie Ammitzbøll, Lars Börnsen, Jeppe Romme Christensen, Rikke Ratzer, Birgitte Romme Nielsen, Helle B Søndergaard, Marina R von Essen, Finn Sellebjerg
Upon chronic cigarette smoke exposure, inhaled antigens and irritants cause altered lung immune homeostasis. Circulating immune cells are affected, and smoking is associated with an increased risk of developing various disorders, including multiple sclerosis (MS). This study was conducted to determine the impact of smoking on circulating immune cell subsets. Furthermore, we determined whether any smoking-associated changes were related to MS. With the use of flow cytometry, CFSE assays, and ELISpot assays, we analyzed circulating immune cell phenotypes and quantified antigen-induced proliferation and cytokine secretion in smokers and nonsmokers in a cohort of 100 healthy individuals (HI)...
February 8, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28165143/potentially-modifiable-factors-associated-with-physical-activity-in-individuals-with-multiple-sclerosis
#2
Nadia Reider, Amber R Salter, Gary R Cutter, Tuula Tyry, Ruth Ann Marrie
Physical activity levels among persons with multiple sclerosis (MS) are worryingly low. We aimed to identify the factors associated with physical activity for people with MS, with an emphasis on factors that have not been studied previously (bladder and hand dysfunction) and are potentially modifiable. This study was a secondary analysis of data collected in the spring of 2012 during the North American Research Committee on Multiple Sclerosis (NARCOMS) Registry. NARCOMS participants were surveyed regarding smoking using questions from the Behavioral Risk Factor Surveillance Survey; disability using the Patient Determined Disease Steps; fatigue, cognition, spasticity, sensory, bladder, vision and hand function using self-reported Performance Scales; health literacy using the Medical Term Recognition Test; and physical activity using questions from the Health Information National Trends Survey...
February 6, 2017: Research in Nursing & Health
https://www.readbyqxmd.com/read/28151074/a-systematic-review-of-the-effects-of-modifiable-risk-factor-interventions-on-the-progression-of-multiple-sclerosis
#3
Susanne Hempel, Glenn D Graham, Ning Fu, Elena Estrada, Annie Y Chen, Isomi Miake-Lye, Jeremy N V Miles, Roberta Shanman, Paul G Shekelle, Jessica M Beroes, Mitchell T Wallin
BACKGROUND: Several risk factors are associated with multiple sclerosis (MS) progression and may be amenable to intervention. OBJECTIVE: To systematically review the evidence for interventions targeting risk factors for MS progression. METHODS: We searched six databases and existing reviews till March 2015 and consulted with experts to identify randomized controlled trials (RCTs) of interventions targeting MS risk factors (PROSPERO 2015:CRD42015016461)...
February 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28151053/a-systematic-review-of-modifiable-risk-factors-in-the-progression-of-multiple-sclerosis
#4
Susanne Hempel, Glenn D Graham, Ning Fu, Elena Estrada, Annie Y Chen, Isomi Miake-Lye, Jeremy N V Miles, Roberta Shanman, Paul G Shekelle, Jessica M Beroes, Mitchell T Wallin
BACKGROUND: The presenting symptoms and rate of progression of multiple sclerosis (MS) are very heterogeneous. The diverse clinical manifestations and the clinical course of the disease may vary with modifiable risk factors. OBJECTIVE: To systematically review modifiable risk factors and exposures associated with MS progression. METHODS: We searched six databases till March 2015, reference-mined reviews, and consulted with experts (PROSPERO 2015:CRD42015016461)...
February 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28127518/the-lack-of-association-between-angiotensin-converting-enzyme-gene-insertion-deletion-polymorphism-and-nicotine-dependence-in-multiple-sclerosis
#5
Sergej Nadalin, Alena Buretić-Tomljanović, Polona Lavtar, Nada Starčević Čizmarević, Alenka Hodžić, Juraj Sepčić, Miljenko Kapović, Borut Peterlin, Smiljana Ristić
OBJECTIVE: Blood-borne angiotensin II is generated from angiotensinogen via cleavage by renin and angiotensin-converting enzyme (ACE), an enzymatic cascade known as the renin-angiotensin system (RAS). Several lines of evidence indicate that ACE, beyond its classical role of mediating blood pressure regulation, might contribute to the etiology of substance addictions by influencing dopaminergic signaling. A functional insertion/deletion (I/D) polymorphism of the ACE gene was associated with risk for being a smoker among individuals with depression and with smoking severity in studies comprising patients with depression and healthy controls...
January 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28073764/causal-effect-of-genetic-variants-associated-with-body-mass-index-on-multiple-sclerosis-susceptibility
#6
Milena A Gianfrancesco, M Maria Glymour, Stefan Walter, Brooke Rhead, Xiaorong Shao, Ling Shen, Hong Quach, Alan Hubbard, Ingileif Jónsdóttir, Kári Stefánsson, Pernilla Strid, Jan Hillert, Anna Hedström, Tomas Olsson, Ingrid Kockum, Catherine Schaefer, Lars Alfredsson, Lisa F Barcellos
Multiple sclerosis (MS) is an autoimmune disease with both genetic and environmental risk factors. Recent studies indicate that childhood and adolescent obesity double the risk of MS, but this association may reflect unmeasured confounders rather than causal effects of obesity. We used separate-sample Mendelian randomization to estimate the causal effect of body mass index (BMI) on susceptibility to MS. Using data from non-Hispanic white members of the Kaiser Permanente Medical Care Plan of Northern California (KPNC) (2006-2014; 1,104 cases of MS and 10,536 controls) and a replication data set from Sweden (the Epidemiological Investigation of MS (EIMS) and the Genes and Environment in MS (GEMS) studies, 2005-2013; 5,133 MS cases and 4,718 controls), we constructed a weighted genetic risk score using 97 variants previously established to predict BMI...
January 9, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28059618/smokers-with-ms-have-greater-decrements-in-quality-of-life-and-disability-than-non-smokers
#7
Farren Bs Briggs, Douglas D Gunzler, Daniel Ontaneda, Ruth Ann Marrie
BACKGROUND: Tobacco smoke plays a pathogenic role in multiple sclerosis (MS) and may accelerate disease progression, yet, some people with MS continue to smoke after disease onset. The average smoker reports diminished health-related quality of life (HRQOL) across many populations. OBJECTIVES: To describe the relationships between smoking status and HRQOL, disease activity, and global disability in a US population with MS. METHODS: We compared smokers to non-smokers in 950 responders to the Spring 2014 update survey completed by North American Research Committee on Multiple Sclerosis (NARCOMS) registry participants...
January 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/27999524/individual-and-co-occurring-snap-risk-factors-smoking-nutrition-alcohol-consumption-and-physical-activity-in-people-with-multiple-sclerosis
#8
Julia M Balto, Ipek Ensari, Elizabeth A Hubbard, Naiman Khan, Jennifer L Barnes, Robert W Motl
Background: Smoking, poor nutrition, excess alcohol consumption, and insufficient physical activity underlie most preventable causes of morbidity in the general population and may be associated with comorbidities and health outcomes in multiple sclerosis (MS). However, the frequency of co-occurrence of these risk factors in people with MS remains unclear. Methods: Sixty-nine individuals with MS completed self-report measures of smoking status, nutrition, alcohol use, physical activity levels, and sociodemographic and clinical characteristics...
November 2016: International Journal of MS Care
https://www.readbyqxmd.com/read/27998160/risk-factors-of-multiple-sclerosis-and-their-relation-with-disease-severity-a-cross-sectional-study-from-iran
#9
Maryam Abbasi, Seyed Massood Nabavi, Seyed-Mohammad Fereshtehnejad, Iman Ansari, Nikan Zerafatjou, Vahid Shayegannejad, Seyed Ehsan Mohammadianinejad, Mahdi Farhoudi, Abbas Noorian, Nazanin Razazian, Mahmoud Abedini, Fardin Faraji
BACKGROUND: Many risk factors have been investigated in multiple sclerosis (MS); however, few studies have focused on the association between risk factors and the disease severity. The aim of our study was to evaluate the association between some of these risk factors and MS severity in a population sample of Iranian patients. METHODS: This cross-sectional study was conducted on 660 patients with MS. In addition to demographic variables, many potential risk factors were recorded...
December 2016: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/27996340/geographic-variation-as-a-risk-factor-for-digital-ulcers-in-systemic-sclerosis-patients-a-multicentre-registry
#10
Ejr Souza, C S Muller, Amc Horimoto, R A Rezende, I Guimarães, H A Mariz, A T Dantas, I P Da Costa, Apt Del-Rio, J Sekiyama, C B Kahwage, C Kayser
OBJECTIVE: To evaluate the influence of geographic variation on the risk of digital ulcer (DU) development in systemic sclerosis (SSc) patients. METHODS: This cross-sectional, multicentre study evaluated patients with SSc from centres located in different geographic regions of Brazil (subtropical and tropical climate zones). Demographic and clinical data were collected. RESULTS: The study included 141 patients with SSc (26 from the subtropical and 115 from the tropical zone)...
December 20, 2016: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/27919478/attitudes-to-cannabis-and-patterns-of-use-among-canadians-with-multiple-sclerosis
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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