Publication list - Publika - Scientific publications from Oslo University Hospital

Publications by Per Ivar Gaarder

79 publications found

Original articles

Skattum J, Titze TL, Dormagen JB, Aaberge IS, Bechensteen AG, Gaarder PI, Gaarder C, Heier HE, Næss PA (2010)
Preserved splenic function after angioembolisation of high grade injury
Injury, 43 (1), 62-6
DOI 10.1016/j.injury.2010.06.028, PubMed 20673894

Sørheim IC, Bakke P, Gulsvik A, Pillai SG, Johannessen A, Gaarder PI, Campbell EJ, Agustí A, Calverley PM, Donner CF, Make BJ, Rennard SI, Vestbo J, Wouters EF, Paré PD, Levy RD, Coxson HO, Lomas DA, Hersh CP, Silverman EK (2010)
α₁-Antitrypsin protease inhibitor MZ heterozygosity is associated with airflow obstruction in two large cohorts
Chest, 138 (5), 1125-32
DOI 10.1378/chest.10-0746, PubMed 20595457

Syversen SW, Haavardsholm EA, Bøyesen P, Goll GL, Okkenhaug C, Gaarder PI, van der Heijde D, Kvien TK (2010)
Biomarkers in early rheumatoid arthritis: longitudinal associations with inflammation and joint destruction measured by magnetic resonance imaging and conventional radiographs
Ann Rheum Dis, 69 (5), 845-50
DOI 10.1136/ard.2009.122325, PubMed 20233753

Syversen SW, Goll GL, van der Heijde D, Landewé R, Lie BA, Odegård S, Uhlig T, Gaarder PI, Kvien TK (2009)
Prediction of radiographic progression in rheumatoid arthritis and the role of antibodies against mutated citrullinated vimentin: results from a 10-year prospective study
Ann Rheum Dis, 69 (2), 345-51
DOI 10.1136/ard.2009.113092, PubMed 19648126

Syversen SW, Goll GL, van der Heijde D, Landewé R, Gaarder PI, Odegård S, Haavardsholm EA, Kvien TK (2009)
Cartilage and bone biomarkers in rheumatoid arthritis: prediction of 10-year radiographic progression
J Rheumatol, 36 (2), 266-72
DOI 10.3899/jrheum.080180, PubMed 19132792

Bøyesen P, Hoff M, Odegård S, Haugeberg G, Syversen SW, Gaarder PI, Okkenhaug C, Kvien TK (2009)
Antibodies to cyclic citrullinated protein and erythrocyte sedimentation rate predict hand bone loss in patients with rheumatoid arthritis of short duration: a longitudinal study
Arthritis Res Ther, 11 (4), R103
DOI 10.1186/ar2749, PubMed 19570223

Syversen SW, Gaarder PI, Goll GL, Ødegård S, Haavardsholm EA, Mowinckel P, van der Heijde D, Landewé R, Kvien TK (2007)
High anti-cyclic citrullinated peptide levels and an algorithm of four variables predict radiographic progression in patients with rheumatoid arthritis: results from a 10-year longitudinal study
Ann Rheum Dis, 67 (2), 212-7
DOI 10.1136/ard.2006.068247, PubMed 17526555

Løvik M, Alberg T, Nygaard UC, Samuelsen M, Groeng EC, Gaarder PI (2007)
Popliteal lymph node (PLN) assay to study adjuvant effects on respiratory allergy
Methods, 41 (1), 72-9
DOI 10.1016/j.ymeth.2006.07.014, PubMed 17161303

Primo D, Flores J, Quijano S, Sanchez ML, Sarasquete ME, del Pino-Montes J, Gaarder PI, Gonzalez M, Orfao A (2006)
Impact of BCR/ABL gene expression on the proliferative rate of different subpopulations of haematopoietic cells in chronic myeloid leukaemia
Br J Haematol, 135 (1), 43-51
DOI 10.1111/j.1365-2141.2006.06265.x, PubMed 16939497

Efskind J, Ellingsen DG, Hartman A, Thomassen Y, Ulvik RJ, Gaarder PI, Solberg TB (2006)
Renal function of chloralkali workers after the cessation of exposure to mercury vapor
Scand J Work Environ Health, 32 (3), 241-9
DOI 10.5271/sjweh.1005, PubMed 16804628

Ormaasen V, Sandvik L, Asjø B, Holberg-Petersen M, Gaarder PI, Bruun JN (2004)
An algorithm-based genotypic resistance score is associated with clinical outcome in HIV-1-infected adults on antiretroviral therapy
HIV Med, 5 (6), 400-6
DOI 10.1111/j.1468-1293.2004.00244.x, PubMed 15544691

Ellingsen DG, Haug E, Gaarder PI, Bast-Pettersen R, Thomassen Y (2003)
Endocrine and immunologic markers in manganese alloy production workers
Scand J Work Environ Health, 29 (3), 230-8
DOI 10.5271/sjweh.726, PubMed 12828393

Abebe F, Birkeland KI, Gaarder PI, Petros B, Gundersen SG (2003)
The relationships between dehydroepiandrosterone sulphate (DHEAS), the intensity of Schistosoma mansoni infection and parasite-specific antibody responses. A cross-sectional study in residents of endemic communities in north-east Ethiopia
APMIS, 111 (2), 319-28
DOI 10.1034/j.1600-0463.2003.1110205.x, PubMed 12716389

Ormaasen V, Bruun JN, Sandvik L, Holberg-Petersen M, Gaarder PI (2003)
Prognostic value of changes in CD4 count and HIV RNA during the first six months on highly active antiretroviral therapy in chronic human immunodeficiency virus infection
Scand J Infect Dis, 35 (6-7), 383-8
DOI 10.1080/00365540310009716, PubMed 12953949

Abebe F, Gaarder PI, Petros B, Gundersen SG (2002)
Differences in prevalence, intensity of infection and parasite-specific antibody levels do not predict different age-infection profiles
APMIS, 110 (7-8), 535-44
DOI 10.1034/j.1600-0463.2002.11007804.x, PubMed 12390411

Ormaasen V, Bruun JN, Sandvik L, Holberg-Petersen M, Gaarder PI (2002)
A search for optimal criteria in initiating antiretroviral therapy in chronic human immunodeficiency virus infection focusing on CD4 count and HIV RNA
Scand J Infect Dis, 34 (12), 910-7
DOI 10.1080/0036554021000026957, PubMed 12587624

Abebe F, Gaarder PI, Petros B, Gundersen SG (2001)
Age- and sex-related differences in antibody responses against Schistosoma mansoni soluble egg antigen in a cohort of school children in Ethiopia
APMIS, 109 (12), 816-24
DOI 10.1034/j.1600-0463.2001.091203.x, PubMed 11846722

Nafstad P, Magnus P, Gaarder PI, Jaakkola JJ (2001)
Exposure to pets and atopy-related diseases in the first 4 years of life
Allergy, 56 (4), 307-12
DOI 10.1034/j.1398-9995.2001.00881.x, PubMed 11284797

Granum B, Gaarder PI, Groeng E, Leikvold R, Namork E, Lovik M (2001)
Fine particles of widely different composition have an adjuvant effect on the production of allergen-specific antibodies
Toxicol Lett, 118 (3), 171-81
DOI 10.1016/s0378-4274(00)00292-7, PubMed 11137324

Granum B, Gaarder PI, Løvik M (2001)
IgE adjuvant effect caused by particles - immediate and delayed effects
Toxicology, 156 (2-3), 149-59
DOI 10.1016/s0300-483x(00)00375-9, PubMed 11164617

Ellingsen DG, Efskind J, Berg KJ, Gaarder PI, Thomassen Y (2000)
Renal and immunologic markers for chloralkali workers with low exposure to mercury vapor
Scand J Work Environ Health, 26 (5), 427-35
DOI 10.5271/sjweh.564, PubMed 11103842

Granum B, Gaarder PI, Eikeset A, Stensby BA, Løvik M (2000)
The adjuvant effect of particles-importance of genetic background and pre-sensitisation
Int Arch Allergy Immunol, 122 (3), 167-73
DOI 10.1159/000024393, PubMed 10899759

Danevad M, Sletten K, Gaarder PI, Mellbye OJ, Husby G (2000)
The amino acid sequence of a monoclonal gamma 3-heavy chain from a patient with articular gamma-heavy chain deposition disease
Scand J Immunol, 51 (6), 602-6
DOI 10.1046/j.1365-3083.2000.00730.x, PubMed 10849371

Granum B, Gaarder PI, Løvik M (2000)
IgE Adjuvant Activity of Particles-What Physical Characteristics are Important?
Inhal Toxicol, 12 Suppl 3, 365-72
DOI 10.1080/08958378.2000.11463247, PubMed 26368637

Ellingsen DG, Efskind J, Haug E, Thomassen Y, Martinsen I, Gaarder PI (2000)
Effects of low mercury vapour exposure on the thyroid function in chloralkali workers
J Appl Toxicol, 20 (6), 483-9
DOI 10.1002/1099-1263(200011/12)20:6<483::aid-jat722>3.0.co;2-i, PubMed 11180271

Steinsvik TE, Aaberge IS, Gaarder PI, Løvik M (1999)
Interleukin-13 and human immunoglobulin E production in severe combined immunodeficiency mice transplanted with human peripheral blood lymphocytes
Scand J Immunol, 49 (1), 67-72
DOI 10.1046/j.1365-3083.1999.00476.x, PubMed 10023859

Ormstad H, Gaarder PI, Johansen BV, Løvik M (1998)
Airborne house dust elicits a local lymph node reaction and has an adjuvant effect on specific IgE production in the mouse
Toxicology, 129 (2-3), 227-36
DOI 10.1016/s0300-483x(98)00079-1, PubMed 9772100

Steinsvik TE, Ormstad H, Gaarder PI, Aaberge IS, Bjønness U, Løvik M (1998)
Human IgE production in hu-PBL-SCID mice injected with birch pollen and diesel exhaust particles
Toxicology, 128 (3), 219-30
DOI 10.1016/s0300-483x(98)00075-4, PubMed 9750044

Ormstad H, Johansen BV, Gaarder PI (1998)
Airborne house dust particles and diesel exhaust particles as allergen carriers
Clin Exp Allergy, 28 (6), 702-8
DOI 10.1046/j.1365-2222.1998.00302.x, PubMed 9677134

Nafstad P, Oie L, Mehl R, Gaarder PI, Lødrup-Carlsen KC, Botten G, Magnus P, Jaakkola JJ (1998)
Residential dampness problems and symptoms and signs of bronchial obstruction in young Norwegian children
Am J Respir Crit Care Med, 157 (2), 410-4
DOI 10.1164/ajrccm.157.2.9706033, PubMed 9476851

Gaarder PI (1998)
Mite-allergen levels in Norwegian homes
Allergy, 53 (48 Suppl), 58-9
DOI 10.1111/j.1398-9995.1998.tb04999.x, PubMed 10096810

Løvik M, Høgseth AK, Gaarder PI, Hagemann R, Eide I (1997)
Diesel exhaust particles and carbon black have adjuvant activity on the local lymph node response and systemic IgE production to ovalbumin
Toxicology, 121 (2), 165-78
DOI 10.1016/s0300-483x(97)00075-9, PubMed 9230448

Steinsvik TE, Aaberge IS, Gaarder PI, Bjønness U, Løvik M (1997)
Total and birch pollen-specific human IgE in mice with severe combined immunodeficiency transplanted with human peripheral blood lymphocytes: donor dependence, seasonal variation and in vivo half-life
Int Arch Allergy Immunol, 112 (2), 175-83
DOI 10.1159/000237451, PubMed 9030099

Ormstad H, Gaarder PI, Johansen BV (1997)
Quantification and characterisation of suspended particulate matter in indoor air
Sci Total Environ, 193 (3), 185-96
DOI 10.1016/s0048-9697(96)05337-5, PubMed 19174853

Johansen HR, Alexander J, Rossland OJ, Planting S, Løvik M, Gaarder PI, Gdynia W, Bjerve KS, Becher G (1996)
PCDDs, PCDFs, and PCBs in human blood in relation to consumption of crabs from a contaminated Fjord area in Norway
Environ Health Perspect, 104 (7), 756-64
DOI 10.1289/ehp.96104756, PubMed 8841762

Løvik M, Johansen HR, Gaarder PI, Becher G, Aaberge IS, Gdynia W, Alexander J (1996)
Halogenated organic compounds and the human immune system: preliminary report on a study in hobby fishermen
Arch Toxicol Suppl, 18, 15-20
DOI 10.1007/978-3-642-61105-6_2, PubMed 8678791

Ormstad H, Namork E, Gaarder PI, Johansen BV (1995)
Scanning electron microscopy of immunogold labeled cat allergens (Fel d 1) on the surface of airborne house dust particles
J Immunol Methods, 187 (2), 245-51
DOI 10.1016/0022-1759(95)00190-6, PubMed 7499883

Steinsvik TE, Gaarder PI, Aaberge IS, Løvik (1995)
Engraftment and humoral immunity in SCID and RAG-2-deficient mice transplanted with human peripheral blood lymphocytes
Scand J Immunol, 42 (6), 607-16
DOI 10.1111/j.1365-3083.1995.tb03703.x, PubMed 8552984

Dahlman HJ, Gaarder PI, Løvik M, Alexander J, Becher G, Bergman A (1994)
PCB congeners and the murine immune system: The capacity of isolated congeners to decrease spleen specific antibody forming cell numbers varies with the toxic equivalence factors of the congeners
Toxicol In Vitro, 8 (5), 1033-5
DOI 10.1016/0887-2333(94)90239-9, PubMed 20693066

Steinsvik TE, Aaberge IS, Belsnes D, Gaarder PI, Løvik M (1994)
Specific human IgE response after immunization with birch pollen in scid mice transplanted with human peripheral blood mononuclear cells-A model for human allergy?
Toxicol In Vitro, 8 (5), 1049-51
DOI 10.1016/0887-2333(94)90243-7, PubMed 20693070

Ellingsen DG, Gaarder PI, Kjuus H (1994)
An immunological study of chloralkali workers previously exposed to mercury vapour
APMIS, 102 (3), 170-6
DOI 10.1111/j.1699-0463.1994.tb04862.x, PubMed 8185884

Ellingsen DG, Barregård L, Gaarder PI, Hultberg B, Kjuus H (1993)
Assessment of renal dysfunction in workers previously exposed to mercury vapour at a chloralkali plant
Br J Ind Med, 50 (10), 881-7
DOI 10.1136/oem.50.10.881, PubMed 8217845

Gilhus NE, Pandey JP, Gaarder PI, Aarli JA (1990)
Immunoglobulin allotypes in myasthenia gravis patients with a thymoma
J Autoimmun, 3 (3), 299-305
DOI 10.1016/0896-8411(90)90148-l, PubMed 2397020

Rognum TO, Kett K, Fausa O, Bengtsson U, Kilander A, Scott H, Gaarder PI, Brandtzaeg P (1989)
Raised number of jejunal IgG2-producing cells in untreated adult coeliac disease compared with food allergy
Gut, 30 (11), 1574-80
DOI 10.1136/gut.30.11.1574, PubMed 2599444

Bjøro T, Frey HM, Larsen IF, Brochmann H, Hanson F, Gaarder PI (1989)
[Thyroid dysfunction and thyroid antibodies in a population group over the age of 70. A prevalence study from Oslo and Naeröy]
Tidsskr Nor Laegeforen, 109 (10), 1048-51
PubMed 2786266

Kanavin OJ, Haug E, Gaarder PI (1988)
[Thyroid function in adults with Down's syndrome. A study from an institution]
Tidsskr Nor Laegeforen, 108 (10), 747-9
PubMed 2966454

Michaelsen TE, Aase A, Gaarder PI (1988)
Human rheumatoid factor reacting with rabbit IgG but not with human IgG
Scand J Rheumatol Suppl, 75, 164-71
DOI 10.3109/03009748809096758, PubMed 3238350

Brochmann H, Bjøro T, Gaarder PI, Hanson F, Frey HM (1988)
Prevalence of thyroid dysfunction in elderly subjects. A randomized study in a Norwegian rural community (Naerøy)
Acta Endocrinol (Copenh), 117 (1), 7-12
DOI 10.1530/acta.0.1170007, PubMed 3381628

Kanavin O, Scott H, Fausa O, Ek J, Gaarder PI, Brandtzaeg P (1988)
Immunological studies of patients with Down's syndrome. Measurements of autoantibodies and serum antibodies to dietary antigens in relation to zinc levels
Acta Med Scand, 224 (5), 473-7
PubMed 2974234

Wisløff F, Godal HC, Gaarder PI, Langebrekke A (1987)
[Lupus anticoagulant. Coagulation inhibitor associated with thrombosis tendency]
Tidsskr Nor Laegeforen, 107 (13), 1128-30
PubMed 3111007

Aaberge IS, Gaarder PI (1986)
Autoantibodies in individuals splenectomized because of trauma
Scand J Haematol, 37 (4), 296-300
DOI 10.1111/j.1600-0609.1986.tb02315.x, PubMed 3787180

Holm R, Gaarder PI, Helgeland L, Falkenhaug EI (1985)
A human autoantibody to peroxisomes
Clin Exp Immunol, 61 (2), 305-14
PubMed 3899430

Gran JT, Gaarder PI, Husby G (1985)
IgG heavy chain (Gm) allotypes in ankylosing spondylitis
Clin Rheumatol, 4 (1), 73-5
DOI 10.1007/BF02032321, PubMed 3857142

Gran JT, Gaarder PI, Husby G, Thorsby E (1985)
IgG heavy chain (Gm) allotypes in rheumatoid arthritis and in healthy individuals seropositive for IgM-rheumatoid factor
Scand J Rheumatol, 14 (2), 144-8
DOI 10.3109/03009748509165495, PubMed 3923616

Bjøro T, Gaarder PI, Smeland EB, Kornstad L (1984)
Thyroid antibodies in blood donors: prevalence and clinical significance
Acta Endocrinol (Copenh), 105 (3), 324-9
DOI 10.1530/acta.0.1050324, PubMed 6702401

Gaarder PI (1983)
[Immunologically mediated extra-valvular disease manifestations in infectious endocarditis]
Tidsskr Nor Laegeforen, 103 (3), 189-91
PubMed 6845314

Gaarder PI, Heier HE (1983)
A human autoantibody to renal collecting duct cells associated with thyroid and gastric autoimmunity and possibly renal tubular acidosis
Clin Exp Immunol, 51 (1), 29-37
PubMed 6339124

Michaelsen TE, Gaarder PI, Kornstad L (1981)
A transient monoclonal human IgG1 kappa protein with anti-thyroglobulin activity: lack of cross-idiotypy with polyclonal anti-thyroglobulin antibodies
Clin Exp Immunol, 46 (2), 268-76
PubMed 6802537

Skaug K, Gaarder PI (1978)
An indirect immunofluorescent antibody test for determination of Rubella virus specific IgM antibodies. Elimination of secondary IgM rheumatoid factor staining after absorption of serum IgG with Staphylococcal protein A
Acta Pathol Microbiol Scand C, 86 (1), 33-5
DOI 10.1111/j.1699-0463.1978.tb02554.x, PubMed 360776

Forre O, Gaarder PI, Natvig JB (1977)
VH subgroup restriction in human erythrocyte antibodies: studies of anti-A, anti-B, and anti-Duffy antibodies
Scand J Immunol, 6 (1-2), 149-56
DOI 10.1111/j.1365-3083.1977.tb00330.x, PubMed 403592

Førre O, Gaarder PI, Natvig JB (1977)
VH subgroup restriction in human erythrocyte antibodies: Studies of anti-A, anti-B, and anti-Duffy antibodies
Scand J Immunol, 6 (1-2), 149-56
DOI 10.1111/j.1365-3083.1977.tb00330.x, PubMed 403593

Seip M, Skrede S, Bjerve K, Hovig T, Gaarder PI (1975)
Congenital dyserythropoietic anaemia with features of both type I and TYPE II
Scand J Haematol, 15 (4), 272-86
DOI 10.1111/j.1600-0609.1975.tb01083.x, PubMed 1198066

Gaarder PI, Michaelsen TE (1974)
Specificity of rheumatoid factors cross-reacting with human and rabbit IgG
Acta Pathol Microbiol Scand B Microbiol Immunol, 82B (5), 733-41
DOI 10.1111/j.1699-0463.1974.tb00243.x, PubMed 4547905

Gaarder PI, Natvig JB (1974)
Distribution of isotypic and allotypic human IgG antigens in non-human primates
J Immunol, 113 (2), 635-44
PubMed 4210885

Gaarder PI, Natvig JB (1974)
The reaction of rheumatoid anti-Gm antibodies with native and aggregated Gm-negative IgG
Scand J Immunol, 3 (5), 559-71
DOI 10.1111/j.1365-3083.1974.tb01289.x, PubMed 4138785

Steward MW, Turner MW, Natvig JB, Gaarder PI (1973)
The binding affinities of rheumatoid factors interacting with the C gamma 3 homology region of human IgG
Clin Exp Immunol, 15 (2), 145-52
PubMed 4202647

Froland SS, Gaarder PI (1973)
The effect of IgG in vitro on leukocytes from patients with rheumatoid arthritis
Scand J Immunol, 2 (4), 385-93
DOI 10.1111/j.1365-3083.1973.tb02047.x, PubMed 4797729

Natvig JB, Gaarder PI, Turner MW (1972)
IgG antigens of the C gamma 2 and C gamma 3 homology regions interacting with rheumatoid factors
Clin Exp Immunol, 12 (2), 177-84
PubMed 4648819

Gaarder PI (1972)
[The complement system]
Tidsskr Nor Laegeforen, 92 (11), 768-70
PubMed 5028897

Gaarder PI, Natvig JB (1972)
Two new antigens of human IgG, "non b 0 " and "non b 1 ," related to the Gm system
J Immunol, 108 (3), 617-21
PubMed 4110981

Gaarder PI, Natvig JB (1970)
Hidden rheumatoid factors reacting with "non a" and other antigens of native autologous IgG
J Immunol, 105 (4), 928-37
PubMed 4990439

Review articles

Gaarder PI (1971)
[Immunological investigations in the diagnosis of rheumatoid arthritis and related diseases]
Tidsskr Nor Laegeforen, 91 (23), 1658-62
PubMed 4938862