Original articles

Lager M, Dessau RB, Wilhelmsson P, Nyman D, Jensen GF, Matussek A, Lindgren PE, Henningsson AJ, ScandTick Biobank Study Group, Baqir H, Serrander L, Johansson M, Tjernberg I, Skarstein I, Ulvestad E, Grude N, Pedersen AB, Bredberg A, Veflingstad R, Wass L, Aleke J, Nordberg M, Nyberg C, Perander L, Bojesson C et al. (2019)
Serological diagnostics of Lyme borreliosis: comparison of assays in twelve clinical laboratories in Northern Europe
Eur J Clin Microbiol Infect Dis, 38 (10), 1933-1945
DOI 10.1007/s10096-019-03631-x, PubMed 31399914

Thortveit ET, Lorentzen ÅR, Ljøstad U, Mygland Å (2018)
Somatic symptoms and fatigue in a Norwegian population with high exposure to ticks
Ticks Tick Borne Dis, 10 (1), 156-161
DOI 10.1016/j.ttbdis.2018.09.012, PubMed 30337264

Forselv KJN, Lorentzen ÅR, Ljøstad U, Mygland Å, Eikeland R, Kjelland V, Noraas S, Quarsten H (2017)
Does more favourable handling of the cerebrospinal fluid increase the diagnostic sensitivity of Borrelia burgdorferi sensu lato-specific PCR in Lyme neuroborreliosis?
Infect Dis (Lond), 50 (4), 297-302
DOI 10.1080/23744235.2017.1399315, PubMed 29125008

Lossius A, Tomescu-Baciu A, Holmøy T, Vedeler CA, Røsjø E, Lorentzen ÅR, Casetta I, Vartdal F (2017)
Selective intrathecal enrichment of G1m1-positive B cells in multiple sclerosis
Ann Clin Transl Neurol, 4 (10), 756-761
DOI 10.1002/acn3.451, PubMed 29046884

Lorentzen ÅR, Forselv KJN, Helgeland G, Salvesen RE, Sand G, Flemmen HØ, Bø MH, Nordaa L, Roos AK, Jim MW, Owe JF, Nyquist KB, Schüler S, Eikeland R, Mygland Å, Ljøstad U (2017)
Lyme neuroborreliosis: do we treat according to guidelines?
J Neurol, 264 (7), 1506-1510
DOI 10.1007/s00415-017-8559-z, PubMed 28676925

Mero IL, Smestad C, Lie BA, Lorentzen ÅR, Sandvik L, Landrø NI, Aarseth JH, Myhr KM, Celius EG, Harbo HF (2012)
Polymorphisms of the BDNF gene show neither association with multiple sclerosis susceptibility nor clinical course
J Neuroimmunol, 244 (1-2), 107-10
DOI 10.1016/j.jneuroim.2012.01.011, PubMed 22341604

Link J, Kockum I, Lorentzen AR, Lie BA, Celius EG, Westerlind H, Schaffer M, Alfredsson L, Olsson T, Brynedal B, Harbo HF, Hillert J (2012)
Importance of human leukocyte antigen (HLA) class I and II alleles on the risk of multiple sclerosis
PLoS One, 7 (5), e36779
DOI 10.1371/journal.pone.0036779, PubMed 22586495

Maniaol AH, Elsais A, Lorentzen ÅR, Owe JF, Viken MK, Sæther H, Flåm ST, Bråthen G, Kampman MT, Midgard R, Christensen M, Rognerud A, Kerty E, Gilhus NE, Tallaksen CM, Lie BA, Harbo HF (2012)
Late onset myasthenia gravis is associated with HLA DRB1*15:01 in the Norwegian population
PLoS One, 7 (5), e36603
DOI 10.1371/journal.pone.0036603, PubMed 22590574

International Multiple Sclerosis Genetics Consortium, Wellcome Trust Case Control Consortium 2, Sawcer S, Hellenthal G, Pirinen M, Spencer CC, Patsopoulos NA, Moutsianas L, Dilthey A, Su Z, Freeman C, Hunt SE, Edkins S, Gray E, Booth DR, Potter SC, Goris A, Band G, Oturai AB, Strange A, Saarela J, Bellenguez C, Fontaine B, Gillman M, Hemmer B et al. (2011)
Genetic risk and a primary role for cell-mediated immune mechanisms in multiple sclerosis
Nature, 476 (7359), 214-9
DOI 10.1038/nature10251, PubMed 21833088

Lundström W, Greiner E, Lundmark F, Westerlind H, Smestad C, Lorentzen AR, Kockum I, Link J, Brynedal B, Celius EG, Harbo HF, Masterman T, Hillert J (2011)
No influence on disease progression of non-HLA susceptibility genes in MS
J Neuroimmunol, 237 (1-2), 98-100
DOI 10.1016/j.jneuroim.2011.05.003, PubMed 21742385

Mero IL, Ban M, Lorentzen ÅR, Smestad C, Celius EG, Sæther H, Saeedi H, Viken MK, Skinningsrud B, Undlien DE, Aarseth J, Myhr KM, Granum S, Spurkland A, Sawcer S, Compston A, Lie BA, Harbo HF (2010)
Exploring the CLEC16A gene reveals a MS-associated variant with correlation to the relative expression of CLEC16A isoforms in thymus
Genes Immun, 12 (3), 191-8
DOI 10.1038/gene.2010.59, PubMed 21179112

Lorentzen AR, Melum E, Ellinghaus E, Smestad C, Mero IL, Aarseth JH, Myhr KM, Celius EG, Lie BA, Karlsen TH, Franke A, Harbo HF (2010)
Association to the Glypican-5 gene in multiple sclerosis
J Neuroimmunol, 226 (1-2), 194-7
DOI 10.1016/j.jneuroim.2010.07.003, PubMed 20692050

Link J, Lorentzen AR, Kockum I, Duvefelt K, Lie BA, Celius EG, Harbo HF, Hillert J, Brynedal B (2010)
Two HLA class I genes independently associated with multiple sclerosis
J Neuroimmunol, 226 (1-2), 172-6
DOI 10.1016/j.jneuroim.2010.07.006, PubMed 20678810

Harbo HF, Riccio ME, Lorentzen AR, Utsi E, Myhr KM, Mellgren SI, Flåm ST, Thorsby E, Sanchez-Mazas A, Lie BA (2009)
Norwegian Sami differs significantly from other Norwegians according to their HLA profile
Tissue Antigens, 75 (3), 207-17
DOI 10.1111/j.1399-0039.2009.01425.x, PubMed 20047643

Mero IL, Lorentzen AR, Ban M, Smestad C, Celius EG, Aarseth JH, Myhr KM, Link J, Hillert J, Olsson T, Kockum I, Masterman T, Oturai AB, Søndergaard HB, Sellebjerg F, Saarela J, Kemppinen A, Elovaara I, Spurkland A, Dudbridge F, Lie BA, Harbo HF (2009)
A rare variant of the TYK2 gene is confirmed to be associated with multiple sclerosis
Eur J Hum Genet, 18 (4), 502-4
DOI 10.1038/ejhg.2009.195, PubMed 19888296

Ockinger J, Stridh P, Beyeen AD, Lundmark F, Seddighzadeh M, Oturai A, Sørensen PS, Lorentzen AR, Celius EG, Leppä V, Koivisto K, Tienari PJ, Alfredsson L, Padyukov L, Hillert J, Kockum I, Jagodic M, Olsson T (2009)
Genetic variants of CC chemokine genes in experimental autoimmune encephalomyelitis, multiple sclerosis and rheumatoid arthritis
Genes Immun, 11 (2), 142-54
DOI 10.1038/gene.2009.82, PubMed 19865101

Lorentzen AR, Karlsen TH, Olsson M, Smestad C, Mero IL, Woldseth B, Sun JY, Senitzer D, Celius EG, Thorsby E, Spurkland A, Lie BA, Harbo HF (2009)
Killer immunoglobulin-like receptor ligand HLA-Bw4 protects against multiple sclerosis
Ann Neurol, 65 (6), 658-66
DOI 10.1002/ana.21695, PubMed 19630074

Ban M, Goris A, Lorentzen AR, Baker A, Mihalova T, Ingram G, Booth DR, Heard RN, Stewart GJ, Bogaert E, Dubois B, Harbo HF, Celius EG, Spurkland A, Strange R, Hawkins C, Robertson NP, Dudbridge F, Wason J, De Jager PL, Hafler D, Rioux JD, Ivinson AJ, McCauley JL, Pericak-Vance M et al. (2009)
Replication analysis identifies TYK2 as a multiple sclerosis susceptibility factor
Eur J Hum Genet, 17 (10), 1309-13
DOI 10.1038/ejhg.2009.41, PubMed 19293837

Kallio SP, Jakkula E, Purcell S, Suvela M, Koivisto K, Tienari PJ, Elovaara I, Pirttilä T, Reunanen M, Bronnikov D, Viander M, Meri S, Hillert J, Lundmark F, Harbo HF, Lorentzen AR, De Jager PL, Daly MJ, Hafler DA, Palotie A, Peltonen L, Saarela J (2009)
Use of a genetic isolate to identify rare disease variants: C7 on 5p associated with MS
Hum Mol Genet, 18 (9), 1670-83
DOI 10.1093/hmg/ddp073, PubMed 19221116

Lorentzen AR, Smestad C, Lie BA, Oturai AB, Akesson E, Saarela J, Myhr KM, Vartdal F, Celius EG, Sørensen PS, Hillert J, Spurkland A, Harbo HF (2008)
The SH2D2A gene and susceptibility to multiple sclerosis
J Neuroimmunol, 197 (2), 152-8
DOI 10.1016/j.jneuroim.2008.04.037, PubMed 18554728

Smestad C, Brynedal B, Jonasdottir G, Lorentzen AR, Masterman T, Akesson E, Spurkland A, Lie BA, Palmgren J, Celius EG, Hillert J, Harbo HF (2007)
The impact of HLA-A and -DRB1 on age at onset, disease course and severity in Scandinavian multiple sclerosis patients
Eur J Neurol, 14 (8), 835-40
DOI 10.1111/j.1468-1331.2007.01825.x, PubMed 17662002

Harbo HF, Utsi E, Lorentzen AR, Kampman MT, Celius EG, Myhr KM, Lie BA, Mellgren SI, Thorsby E (2007)
Low frequency of the disease-associated DRB1*15-DQB1*06 haplotype may contribute to the low prevalence of multiple sclerosis in Sami
Tissue Antigens, 69 (4), 299-304
DOI 10.1111/j.1399-0039.2007.00803.x, PubMed 17389012

Harbo HF, Ekstrøm PO, Lorentzen AR, Sundvold-Gjerstad V, Celius EG, Sawcer S, Spurkland A (2006)
Coding region polymorphisms in T cell signal transduction genes. Prevalence and association to development of multiple sclerosis
J Neuroimmunol, 177 (1-2), 40-5
DOI 10.1016/j.jneuroim.2006.04.021, PubMed 16764945

Lorentzen AR, Celius EG, Ekstrøm PO, Wiencke K, Lie BA, Myhr KM, Ling V, Thorsby E, Vartdal F, Spurkland A, Harbo HF (2005)
Lack of association with the CD28/CTLA4/ICOS gene region among Norwegian multiple sclerosis patients
J Neuroimmunol, 166 (1-2), 197-201
DOI 10.1016/j.jneuroim.2005.06.002, PubMed 16005527

Smerdel A, Dai KZ, Lorentzen AR, Flatø B, Maslinski S, Thorsby E, Førre Ø, Spurkland A (2004)
Genetic association between juvenile rheumatoid arthritis and polymorphism in the SH2D2A gene
Genes Immun, 5 (4), 310-2
DOI 10.1038/sj.gene.6364093, PubMed 15129233

Harbo HF, Lie BA, Sawcer S, Celius EG, Dai KZ, Oturai A, Hillert J, Lorentzen AR, Laaksonen M, Myhr KM, Ryder LP, Fredrikson S, Nyland H, Sørensen PS, Sandberg-Wollheim M, Andersen O, Svejgaard A, Edland A, Mellgren SI, Compston A, Vartdal F, Spurkland A (2004)
Genes in the HLA class I region may contribute to the HLA class II-associated genetic susceptibility to multiple sclerosis
Tissue Antigens, 63 (3), 237-47
DOI 10.1111/j.0001-2815.2004.00173.x, PubMed 14989713

Review articles

Lindland ES, Solheim AM, Andreassen S, Quist-Paulsen E, Eikeland R, Ljøstad U, Mygland Å, Elsais A, Nygaard GO, Lorentzen ÅR, Harbo HF, Beyer MK (2018)
Imaging in Lyme neuroborreliosis
Insights Imaging, 9 (5), 833-844
DOI 10.1007/s13244-018-0646-x, PubMed 30187265

Borsig L, Wolf MJ, Roblek M, Lorentzen A, Heikenwalder M (2013)
Inflammatory chemokines and metastasis--tracing the accessory
Oncogene, 33 (25), 3217-24
DOI 10.1038/onc.2013.272, PubMed 23851506

Harbo HF, Lorentzen AR, Lie BA, Celius EG, Spurkland A (2011)
[New gene map for multiple sclerosis]
Tidsskr Nor Laegeforen, 131 (21), 2126-30
DOI 10.4045/tidsskr.10.0823, PubMed 22048209

Other articles

International Multiple Sclerosis Genetics Consortium (IMSGC), Booth DR, Heard RN, Stewart GJ, Cox M, Scott RJ, Lechner-Scott J, Goris A, Dobosi R, Dubois B, Saarela J, Leppä V, Peltonen L, Pirttila T, Cournu-Rebeix I, Fontaine B, Bergamaschi L, D'Alfonso S, Leone M, Lorentzen AR, Harbo HF, Celius EG, Spurkland A, Link J, Kockum I et al. (2010)
Lack of support for association between the KIF1B rs10492972[C] variant and multiple sclerosis
Nat Genet, 42 (6), 469-70; author reply 470-1
DOI 10.1038/ng0610-469, PubMed 20502484

Theses

Lorentzen ÅR (2009)
Immunogenetic studies in multiple sclerosis
In Series of dissertations submitted to the Faculty of Medicine, University of Oslo, Unipub, Oslo, no. 835, 1 b. (flere pag.)
BIBSYS 093635370, ISBN 978-82-8072-340-6