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A. Hedström

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Review Open access Oct 2026

Environmental and lifestyle factors in multiple sclerosis progression

Multiple sclerosis (MS) is characterized by marked heterogeneity in inflammatory activity, disability accumulation, and long-term clinical outcomes. Although disease-modifying therapies have substantially improved control of inflammatory disease activity, disability progression remains incompletely explained by treatme...

A. Hedström · 0 citations
Review Open access Sep 2026

Interpreting Viral Associations in Neurodegenerative Diseases

Viral infections have been associated with multiple sclerosis (MS), Alzheimer’s disease (AD), Parkinson’s disease (PD), and amyotrophic lateral sclerosis (ALS), but the associations may reflect different relationships to the disease process. This review evaluates evidence for viral involvement in disease initiation, mo...

A. Hedström · 0 citations
Review Open access Aug 2026

Sleep disturbances as early indicators of incident psychiatric disease

Sleep disturbances are common in individuals with psychiatric diseases and may emerge years before diagnosis. It remains unclear whether they reflect modifiable risk factors or early manifestations of psychiatric illness. We aimed to investigate how different sleep dimensions relate to the risk of subsequent psychiatri...

Jie Guo, L. M. Magnusson Hanson, T. Åkerstedt et al. · 0 citations
Open access Sep 2026

Genetic modification of obesity-associated disability progression in multiple sclerosis

Obesity at diagnosis was associated with worse disability outcomes primarily among individuals lacking HLA-A*02:01, suggesting that HLA class I-related immune pathways may modify the influence of excess adiposity on MS disease progression.

Jie Guo, Jing Wu, Tomas Olsson et al. · 1 citation
Open access Sep 2026

Family history of multiple sclerosis and long-term outcomes

Family history is a well-established risk factor for multiple sclerosis (MS), but its influence on disease progression remains unclear. We investigated whether familial MS, including degree of relatedness, is associated with baseline characteristics and disease outcomes. We included individuals with incident MS from th...

A. Hedström, Tomas Olsson, L. Alfredsson · 0 citations
Open access Aug 2026

Shared etiology of late- and adult-onset multiple sclerosis.

Most MS risk factors, including MS heredity, HLA-DRB1*15:01, Epstein-Barr nuclear antigen levels, smoking, and low sun exposure, were associated with both onset groups, with stronger effects in AOMS.

V. Karrenbauer, Tomas Olsson, L. Alfredsson et al. · 0 citations

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