Tomas Olsson
Professor, Senior
E-mail: tomas.olsson@ki.se
Visiting address: L8:04, CMM Karolinska Universitetssjukhuset Solna, 17176 Stockholm
Postal address: K8 Klinisk neurovetenskap, K8 Neuro Piehl, 171 77 Stockholm
About me
- Tomas Olsson is Professor of Neurology at the Department of Clinical Neuroscience. His research is primarily focused on identifying genetic risk factors in multiple sclerosis, MS, and how these, in combination with environmental and lifestyle factors, increase the risk of developing the disease.
Articles
- Article: MULTIPLE SCLEROSIS JOURNAL. 2026;32(9):915-926Ebrahimi A; Wiil UK; Olsson T; Lio P; Kockum I; Manouchehrinia A; Kiani NA
- Article: JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY. 2026;97(7):604-610Hedstrom AK; Olsson T; Alfredsson L
- Article: MULTIPLE SCLEROSIS JOURNAL. 2026;32(7):747-758Corona A; Clarelli F; Paakkonen K; Harroud A; Shchetynsky K; Zollo A; Mingione A; Sorosina M; Mascia E; Giordano A; Rocca MA; Piehl F; Stridh P; Hemmer B; Goris A; Dubois B; Sondergaard HB; Sellebjerg F; D'alfonso S; Harbo HF; Olsson T; Saarela J; Priori A; Filippi M; Kockum I; Esposito F; Martinelli Boneschi F
- Article: NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION. 2026;13(3):e200564Luessi F; Starvaggi Cucuzza C; Engel S; Civelek A; Steffen F; Koeck T; Wild PS; Kockum I; Olsson T; Bittner S; Piehl F; Zipp F
- Article: INTERNATIONAL JOURNAL OF EPIDEMIOLOGY. 2026;55(3):dyag059Guo J; Olsson T; Alfredsson L; Hedstrom AK
- Article: CLINICAL & TRANSLATIONAL IMMUNOLOGY. 2026;15(4):e70094Ingvarsson J; Grut V; Bistrom M; Berg LP; Butt J; Michels B; Stridh P; Olsson T; Alfredsson L; Kockum I; Waterboer T; Nilsson S; Sundstrom P
- Article: NEUROLOGY. 2026;106(7):e214762Alfredsson L; Johansson E; Olsson T; Stridh P; Hedstrom AK
- Article: JOURNAL OF NEUROLOGY. 2026;273(4):240Guo J; Olsson T; Johansson E; Alfredsson L; Hedstrom AK
- Article: JOURNAL OF NEUROLOGY. 2026;273(2):157Guo J; Olsson T; Alfredsson L; Hedstrom AK
- Article: JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY. 2026;97(3):209-216Hedstrom AK; Olsson T; Piehl F; Alfredsson L
- Article: JOURNAL OF NEUROLOGY. 2026;273(2):117Guo J; Olsson T; Alfredsson L; Hedstrom AK
- Article: ACTA NEUROPATHOLOGICA. 2026;151(1):12Giordano A; Stridh P; Preziosa P; Pisa M; Lerma-Martin C; Sorosina M; Mascia E; Santoro S; Misra K; Clarelli F; Ferre L; Needhamsen M; Manouchehrinia A; Missaglia M; Moridi T; Shchetynsky K; Ouellette R; Harroud A; de Vries E; Kuttikkatte SB; Piehl F; Alfredsson L; Hillert J; Olsson T; Fugger L; Attfield K; Granberg T; Schirmer L; Absinta M; Jagodic M; Deluca GC; Rocca MA; Filippi M; Kockum I; Esposito F
- Article: ANNALS OF NEUROLOGY. 2026;99(2):341-355Simpson-Yap S; Morwitch E; Tanner SA; Thomson SM; Eisner A; Lea RA; Kilpatrick TJ; Lechner-Scott J; Scott RJ; Xavier A; Maltby VE; Lucas RM; Taylor BV; Lidbury BA; Broadley SA; van der Mei I; Merid MW; Novakovic B; Saffery R; Hedstrom AK; Stridh P; Olsson T; Jagodic M; Alfredsson L; Ponsonby A-L
- Article: EUROPEAN JOURNAL OF NEUROLOGY. 2026;33(2):e70505Moradi N; Sharmin S; Malpas CB; Kuhle J; Benkert P; Leppert D; Havrdova EK; Horakova D; Kleinova P; Uher T; Manouchehrinia A; Hillert J; Olsson T; Kochum I; Taylor BV; Barnett M; Kilpatrick TJ; Buzzard K; Kalincik T
- Article: CELL. 2026;189(2):585-602.e38Thomas OG; Rykaczewska U; Galesic M; Van Der Burgt RTM; Hallen N; Ferro F; Bronge M; Marti Z; Li Y; Rique AH; Lin J; Krstic A; Gromadzka A; Szonder AL; Sorini C; Reina-Campos M; Sun T; Rodriguez-Kirby LAR; Dumral O; Berglund R; Kakhki MP; Adzemovic MZ; Zeitelhofer M; Akpinar B; Tengvall K; Nilsson OB; Holmgren E; Cucuzza CS; Hogelin KA; Gafvelin G; Fink K; Castelo-Branco G; Needhamsen M; Khademi M; Piehl F; Graslund T; Alfredsson L; Lund H; Uhlen P; Kockum I; Martin R; Jagodic M; Gronlund H; Guerreiro-Cacais AO; Olsson T
- Article: ENVIRONMENT INTERNATIONAL. 2026;207:109993Vaivade A; Sreenivasan AP; Erngren I; Freyhult E; Khoonsari PE; Siljebo J; Al-Grety A; Carlsson H; Akerfeldt T; Spjuth O; Hedstrom AK; Kockum I; Alfredsson L; Olsson T; Burman J; Kultima K
- Article: SCIENCE. 2025;390(6779):eadx2678Alvez MB; Bergstrom S; Kenrick J; Johansson E; Aberg M; Akyildiz M; Altay O; Skold H; Antonopoulos K; Apostolakis E; Balcioglu YH; Bergstrom A; Bergstrom G; Bjorkander S; Brage SE; Brodin P; Butler L; Cajander S; Danielsson H; Dayangac M; Dinler-Doganay G; Doganay L; Enblad G; Enblad M; Fagerberg L; Falck-Jones S; Farnert A; Forsberg M; Gonzalez L; Gummesson A; Gunnarsson K; Gunnarsson I; Gyllensten U; Hesselager G; Hober A; Hoglund M; Holmqvist M; Horuluoglu B; Hultgren R; Iglesias MJ; Janols H; Johansson F; Johnsson A; Klareskog L; Kotol D; Kull I; Kvarnstrom M; Lautenbach MJ; Liljedahl U; Lindman H; Lindskog C; Lipcsey M; Lundberg IE; Mardinoglu A; Melen E; Meng L; Merritt A-S; Mulder J; Nguyen MT-H; Nordlund J; Norrby-Teglund A; Notarnicola A; Nowak P; Odeberg J; Oksvold P; Olsson T; Padyukov L; Pauksens K; Piehl F; Pin E; Ponten F; Rameika N; Reepalu A; Roy J; Schwenk JM; Sen M; Siika A; Simonson OE; Sivertsson A; Sjoblom T; Sjostedt E; Skoglund L; Smed-Sorensen A; Sonden K; Sonnerborg A; Stalberg K; Stralin K; Sunden-Cullberg J; Sundling C; Sutantiwanichkul T; Svedman FC; Svensson M; Svenungsson E; Lakshmikanth T; Tran-Minh KH; Turkez H; Unge C; Venge P; Wahren-Herlenius M; Woessmann J; Yang H; Yesilkaya UH; Yuan M; Zeybel M; Zhang C; Zhong W; Zwahlen M; Von Feilitzen K; Nilsson P; Edfors F; Uhlen M
- Article: JOURNAL OF NEUROLOGY. 2025;273(1):2Hedstrom AK; Olsson T; Alfredsson L
- Article: NATURE NEUROSCIENCE. 2025;28(12):2612-2627Zheng C; Herve B; Meijer M; Rubio Rodriguez-Kirby LA; Guerreiro Cacais AO; Kukanja P; Kabbe M; Jimenez-Beristain T; Olsson T; Agirre E; Castelo-Branco G
- Article: ANNALS OF NEUROLOGY. 2025;98(5):1057-1069Manouchehrinia A; Fitzgerald KC; Salter A; Marrie RA; Alfredsson L; Bernstein CN; Bolton JM; Cutter G; Fisk JD; Graff LA; Hitchon CA; Hillert J; Kockum I; Lu Y; Lublin FD; McKay K; Olsson T; Patten S; Patki A; Riel H; Shchetynsky K; Stridh P; Tiwari HK; Wolinsky JS; Kowalec K
- Show more
All other publications
- Preprint: MEDRXIV. 2025;MEDRXIVvan der Veen T; Tesfaye M; Yang JMK; Boltz T; David FS; Crinion S; Koromina M; Andlauer TFM; Bigdeli TB; Coombes BJ; Greenwood TA; Panagiotaropoulou G; Parker N; Sung H; Bass N; Coleman JRI; Guzman-Parra J; Kalman JL; McGrouther CC; Mitchell BL; Rangan AV; Scott K; Shadrin A; Smith DJ; Vreeker A; Adorjan K; Albani D; Alemany S; Alliey-Rodriguez N; Antoniou A; Bauer M; Beins EC; Boks MP; Bosch R; Brumpton BM; Brunkhorst-Kanaan N; Budde M; Byerley W; Cabana-Domínguez J; Cairns MJ; Carpiniello B; Casas M; Cervantes P; Chatzinakos C; Clarke T-K; Claus I; Cruceanu C; Cuellar-Barboza A; Czerski PM; Dafnas K; Dale AM; Dalkner N; DePaulo JR; Degenhardt F; Djurovic S; Escott-Price V; Fanous AH; Fellendorf FT; Ferrier IN; Forty L; Frank J; Frei O; Freimer NB; Garnham J; Gizer IR; Gordon SD; Gordon-Smith K; Hahn T; Marian L; Harder A; Hautzinger M; Heilbronner U; Hellgren D; Herms S; Hickie IB; Hoffmann P; Holmans PA; Jamain S; Jonsson L; Kennedy JL; Kittel-Schneider S; Knowles JA; Koch E; Kogevinas M; Kranz TM; Kushner SA; Lavebratt C; Lawrence J; Leber M; Lind PA; Lucae S; Lundberg M; MacIntyre DJ; Maier W; Maihofer AX; Malaspina D; Manchia M; Maratou E; Martinsson L; McInnis MG; McKay JD; Medeiros H; Meyer-Lindenberg A; Millischer V; Morris DW; Moutsatsou P; Mühleisen TW; 'Donovan CO; Olsen CM; Papiol S; Pardiñas AF; Perry A; Pfennig A; Pisanu C; Potash JB; Quested D; Rapaport MH; Regeer EJ; Rice JP; Rivera M; Schulte EC; Senner F; Shilling PD; Sindermann L; Sirignano L; Siskind D; Slaney C; Smeland OB; Sobell JL; Artigas MS; Stein DJ; Stein F; Swiatkowska B; Thorp JG; Toma C; Tondo L; Tooney PA; Vawter MP; Vedder H; Walters JTR; Witt SH; Young AH; Zandi PP; Zillich L; Estonian Biobank research team; Genomic Psychiatry Cohort (GPC) Investigators; HUNT All-In Psychiatry; Adolfsson R; Alfredsson L; Backlund L; Baune BT; Bellivier F; Bengesser S; Berrettini WH; Biernacka JM; Blackwood D; Boehnke M; Breen G; Carr VJ; Catts S; Cichon S; Corvin A; Craddock N; Dannlowski U; Dikeos D; Esko T; Etain B; Ferentinos P; Frye M; Fullerton JM; Gawlik M; Gershon ES; Goes FS; Green MJ; Hauser J; Henskens FA; Hjerling-Leffler J; Jones I; Jones LA; Kahn RS; Kelsoe JR; Kircher T; Kirov G; Kobayashi N; Landén M; Leboyer M; Lenger M; Li QS; Lissowska J; Loughland C; Luykx JJ; Martin NG; Mathews CA; Mayoral F; McElroy SL; McIntosh AM; Medland SE; Melle I; Mitchell PB; Morken G; Myers RM; Möser C; Müller-Myhsok B; Neale BM; Nievergelt CM; Nurnberger JI; Nöthen MM; O'Donovan MC; Oedegaard KJ; Olsson T; Owen MJ; Paciga SA; Pantelis C; Pato CN; Pato MT; Patrinos GP; Pawlak JM; Perlis R; Ramos-Quiroga JA; Reif A; Reininghaus EZ; Ribasés M; Rietschel M; Ripke S; Rouleau GA; Schall U; Schalling M; Schofield PR; Schulze TG; Scott LJ; Scott RJ; Serretti A; Smoller JW; Squassina A; Stahl EA; Stordal E; Streit F; Sullivan PF; Turecki G; Vaaler AE; Vieta E; Vincent JB; Waldman ID; Weickert CS; Weickert TW; Whiteman DC; Alda M; Ophoff RA; O'Connell KS; Mullins N; Forstner AJ; Grigoroiu-Serbanescu M; Edenberg HJ; McMahon FJ; Andreassen OA; Di Florio A; McQuillin A; Bipolar Disorder Working Group of the Psychiatric
- Corrigendum: JOURNAL OF NEUROLOGY. 2025;272(6):423Clarelli F; Corona A; Paakkonen K; Sorosina M; Zollo A; Piehl F; Olsson T; Stridh P; Jagodic M; Hemmer B; Gasperi C; Harroud A; Shchetynsky K; Mingione A; Mascia E; Misra K; Giordano A; Mazzieri MLT; Priori A; Saarela J; Kockum I; Filippi M; Esposito F; Boneschi FM
- Corrigendum: FRONTIERS IN IMMUNOLOGY. 2024;15:1494595Lingehed GP; Hellberg S; Huang J; Khademi M; Kockum I; Carlsson H; Tjernberg I; Svenvik M; Lind J; Blomberg M; Vrethem M; Mellergard J; Gustafsson M; Jenmalm MC; Olsson T; Ernerudh J
- Review: EBIOMEDICINE. 2024;101:104970Freedman MS; Gnanapavan S; Booth RA; Calabresi PA; Khalil M; Kuhle J; Lycke J; Olsson T
- Corrigendum: NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION. 2024;11(2):e200207
- Review: FRONTIERS IN IMMUNOLOGY. 2023;14:1304281Thomas OG; Olsson T
- Letter: BRAIN BEHAVIOR AND IMMUNITY. 2023;113:302Huang J; Olsson T; Kockum I
- Corrigendum: NATURE COMMUNICATIONS. 2023;14(1):3923Oddsson AR; Sulem P; Sveinbjornsson G; Arnadottir G; Steinthorsdottir VM; Halldorsson G; Atlason B; Oskarsson GO; Helgason H; Nielsen HS; Westergaard D; Karjalainen JA; Katrinardottir H; Fridriksdottir R; Jensson BB; Tragante V; Ferkingstad EA; Jonsson H; Gudjonsson S; Beyter D; Moore KHS; Thordardottir H; Kristmundsdottir S; Stefansson O; Rantapaeae-Dahlqvist S; Sonderby IE; Didriksen M; Stridh PA; Haavik J; Tryggvadottir L; Frei O; Walters GB; Kockum I; Hjalgrim H; Olafsdottir T; Selbaek G; Nyegaard M; Erikstrup C; Brodersen T; Saevarsdottir S; Olsson T; Nielsen KR; Haraldsson A; Bruun MT; Hansen TF; Steingrimsdottir TT; Jacobsen RL; Lie R; Djurovic S; Alfredsson L; Lopez de Lapuente Portilla A; Brunak SV; Melsted P; Halldorsson B; Saemundsdottir J; Magnusson OT; Padyukov L; Banasik K; Rafnar T; Askling J; Klareskog L; Pedersen OB; Masson G; Havdahl AA; Nilsson B; Andreassen O; Daly M; Ostrowski SR; Jonsdottir I; Stefansson H; Holm H; Helgason A; Thorsteinsdottir UF; Stefansson K; Gudbjartsson D
- Review: TRENDS IN GENETICS. 2021;37(9):784-797Martin R; Sospedra M; Eiermann T; Olsson T
- Letter: JOURNAL OF INTERNAL MEDICINE. 2021;290(2):473-476Ineichen BV; Moridi T; Ewing E; Ouellette R; Manouchehrinia A; Stawiarz L; Ferreira D; Muehlboeck SJ; Kuhle J; Westman E; Leppert D; Hillert J; Olsson T; Kockum I; Piehl F; Granberg T
- Review: FRONTIERS IN IMMUNOLOGY. 2021;12:618110Lindahl H; Olsson T
- Corrigendum: JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY. 2019;90(11):E7Olsson T; Boster A; Fernandez O
- Review: ANNALS OF CLINICAL AND TRANSLATIONAL NEUROLOGY. 2019;6(9):1905-1922Waubant E; Lucas R; Mowry E; Grayest J; Olsson T; Alfredsson L; Langer-Gould A
- Review: JAMA NEUROLOGY. 2019;76(9):1035-1048Bridel C; van Wieringen WN; Zetterberg H; Tijms BM; Teunissen CE; Alvarez-Cermeno JC; Andreasson U; Axelsson M; Backstrom DC; Bartos A; Bjerke M; Blennow K; Boxer A; Brundin L; Burman J; Christensen T; Fialova L; Forsgren L; Frederiksen JL; Gisslen M; Gray E; Gunnarsson M; Hall S; Hansson O; Herbert MK; Jakobsson J; Jessen-Krut J; Janelidze S; Johannsson G; Jonsson M; Kappos L; Khademi M; Khalil M; Kuhle J; Landen M; Leinonen V; Logroscino G; Lu C-H; Lycke J; Magdalinou NK; Malaspina A; Mattsson N; Meeter LH; Mehta SR; Modvig S; Olsson T; Paterson RW; Perez-Santiago J; Piehl F; Pijnenburg YAL; Pyykko OT; Ragnarsson O; Rojas JC; Christensen JR; Sandberg L; Scherling CS; Schott JM; Sellebjerg FT; Simone IL; Skillback T; Stilund M; Sundstrom P; Svenningsson A; Tortelli R; Tortorella C; Trentini A; Troiano M; Turner MR; van Swieten JC; Vagberg M; Verbeek MM; Villar LM; Visser PJ; Wallin A; Weiss A; Wikkelso C; Wild EJ
- Corrigendum: NATURE COMMUNICATIONS. 2019;10(1):2956Madireddy L; Patsopoulos NA; Cotsapas C; Bos SD; Beecham A; McCauley J; Kim K; Jia X; Santaniello A; Caillier SJ; Andlauer TFM; Barcellos LF; Berge T; Bernardinelli L; Martinelli-Boneschi F; Booth DR; Briggs F; Celius EG; Comabella M; Comi G; Cree BAC; D'Alfonso S; Dedham K; Duquette P; Dardiotis E; Esposito F; Fontaine B; Gasperi C; Goris A; Dubois B; Gourraud P-A; Hadjigeorgiou G; Haines J; Hawkins C; Hemmer B; Hintzen R; Horakova D; Isobe N; Kalra S; Kira J-I; Khalil M; Kockum I; Lill CM; Lincoln MR; Luessi F; Martin R; Oturai A; Palotie A; Pericak-Vance MA; Henry R; Saarela J; Ivinson A; Olsson T; Taylor BV; Stewart GJ; Harbo HF; Compston A; Hauser SL; Hafler DA; Zipp F; De Jager P; Sawcer S; Oksenberg JR; Baranzini SE
- Corrigendum: PAIN. 2019;160(4):986Burkill S; Montgomery S; Kockum I; Piehl F; Strid P; Hillert J; Alfredsson L; Olsson T; Bahmanyar S
- Review: FRONTIERS IN IMMUNOLOGY. 2018;9:2600Age at Menarche and Risk of Multiple Sclerosis: Current Progress From Epidemiological InvestigationsJiang X; Olsson T; Alfredsson L
- Corrigendum: SCIENTIFIC REPORTS. 2018;8(1):4340Marabita F; Almgren M; Sjoholm LK; Kular L; Liu Y; James T; Kiss NB; Feinberg AP; Olsson T; Kockum I; Alfredsson L; Ekstrom TJ; Jagodic M
- Review: FREE RADICAL BIOLOGY AND MEDICINE. 2017;112:387-396Sorce S; Stocker R; Seredenina T; Holmdahl R; Aguzzi A; Chio A; Depaulis A; Heitz F; Olofsson P; Olsson T; Duveau V; Sanoudou D; Skosgater S; Vlahou A; Wasquel D; Krause K-H; Jaquet V
- Letter: ANNALS OF NEUROLOGY. 2017;82(4):652-653Montgomery S; Hiyoshi A; Burkill S; Alfredsson L; Bahmanyar S; Olsson T
- Show more
Employments
- Professor, Senior, Department of Clinical Neuroscience, Karolinska Institutet, 2024-2026
- Professor, Department of Clinical Neuroscience, Karolinska Institutet, 2020-2024
- Professor, Senior, Department of Clinical Neuroscience, Karolinska Institutet, 2019-2020
- Professor/Senior Physician, Department of Clinical Neuroscience, Karolinska Institutet, 2003-2019
- Professor/Senior Physician, Department of Medicine, Karolinska Institutet, 1996-2003
- Professor, Department of Medicine, Karolinska Institutet, 1995-1996
Degrees and Education
- Docent, Karolinska Institutet, 1985
Supervision
Supervision to doctoral degree
- Jesse Huang, Biomarkers and viral risk factors in multiple sclerosis, 2022
- Tojo James, Genetic landscape of multiple sclerosis susceptibility by leveraging multi-omics data, 2018
- Sevasti Flytzani, Genetic Regulation of Autoimmunity in Experimental Neuroinflammation, 2016
- Magdalena Lindén, Studies of risk loci in multiple sclerosis, 2014
- Emilie Sundqvist, Common viruses and host gene interactions in Multiple Sclerosis, 2013