Animal exposure, and specifically dog exposure, in early adolescence was associated with an increased risk of multiple sclerosis (MS), according to a recent study. Researchers conducted a case-control study within the Nurses’ Health Study ([NHS]/NHSII cohorts). Overall, 151 women with MS and 235 controls, matched by age and study cohort, completed an animal exposure history questionnaire. Animal exposure pre-MS onset was assessed as “any” exposure, then by the participant’s age, and animal family. They found:
- “Any” animal exposure was reported by 136 (90.1%) MS cases compared to 200 (85.1%) matched controls, with dog exposure being the most common (120 [79.5%] cases vs 170 [72.3%] controls).
- There was no association between “any” animal exposure and MS risk.
- However, both “any” animal and specifically dog exposure at ages 10-14 years were associated with an increased MS risk.
de Jong HJI, Tremlett H, Zhu F, Ascherio A, Munger KL. Animal exposure over the life-course and risk of multiple sclerosis: A case-control study within two cohorts of US women. [Published online ahead of print November 15, 2018]. Mult Scler Relat Disord. doi:10.1016/j.msard.2018.11.015.
This Week's Must Reads
Vegetable/Fruit Intake Benefits Cognitive Function, Neurology; ePub 2018 Nov 21; Yuan, Fondell, et al
Alzheimer Dementia and Age-Related Neuropathologies, Ann Neurol; ePub 2018 Nov 12; Boyle, Yu, et al
Kidney Function and Post-Stroke Mortality Examined, Stroke; ePub 2018 Nov 9; El Husseini, Fonarow, et al
Meditation May Help to Alleviate US Stroke Burden, J Stroke Cerebrovasc Dis; ePub 2018 Nov 24; Ambavane, et al
FDA Approves Firdapse for Rare Autoimmune Disorder, FDA news release; 2018 Nov 28
Must Reads in Multiple Sclerosis
Exposure to Animals Associated with Risk of MS, Mult Scler Relat Disord; ePub 2018 Nov 15; de Jong, et al
White Matter Tract Disruption, Fatigue Examined, Mult Scler Relat Disord; ePub 2018 Nov 9; Fuchs, et al
Coexistence of Multiple Sclerosis, Alzheimer Disease, Mult Scler Relat Disord; ePub 2018 Oct 27; Luczynski, et al
Body Mass Index Linked with Brain Volume Change, Neurology; ePub 2018 Nov 14; Mowry, Azevedo, et al
Detection of Whole Brain, Deep GM Atrophy in MS, PLoS One; ePub 2018 Nov 8; Chu, Kim, et al