Asgeir Johannessen

  • Post doc MD, PhD
 

Publications 2019

Aberra H, Desalegn H, Berhe N, Mekasha B, Medhin G, Gundersen SG, Johannessen A (2019)
The WHO guidelines for chronic hepatitis B fail to detect half of the patients in need of treatment in Ethiopia
J Hepatol, 70 (6), 1065-1071
DOI 10.1016/j.jhep.2019.01.037, PubMed 30929749

Desalegn H, Aberra H, Berhe N, Medhin G, Mekasha B, Gundersen SG, Johannessen A (2019)
Predictors of mortality in patients under treatment for chronic hepatitis B in Ethiopia: a prospective cohort study
BMC Gastroenterol, 19 (1), 74
DOI 10.1186/s12876-019-0993-1, PubMed 31092203

Johannessen A, Aberra H, Desalegn H, Gordien E, Berhe N (2019)
A novel score to select patients for treatment in chronic hepatitis B: Results from a large Ethiopian cohort
J Hepatol (in press)
DOI 10.1016/j.jhep.2019.04.006, PubMed 31383377

Orlien SMS, Berhe NB, Morgan MY, Johannessen A (2019)
Khat-related liver disease in sub-Saharan Africa: neglected, yet important
Lancet Glob Health, 7 (3), e310
DOI 10.1016/S2214-109X(18)30527-8, PubMed 30784630

Publications 2018

Al-Shudifat AE, Azab M, Johannessen A, Al-Shdaifat A, Agraib LM, Tayyem RF (2018)
Elevated fasting blood glucose, but not obesity, is associated with coronary artery disease in patients undergoing elective coronary angiography in a referral hospital in Jordan
Ann Saudi Med, 38 (2), 111-117
DOI 10.5144/0256-4947.2018.111, PubMed 29620544

Azab M, Al-Shudifat AE, Johannessen A, Al-Shdaifat A, Agraib LM, Tayyem RF (2018)
Are Risk Factors for Coronary Artery Disease Different in Persons With and Without Obesity?
Metab Syndr Relat Disord, 16 (8), 440-445
DOI 10.1089/met.2017.0152, PubMed 30088947

Desalegn H, Aberra H, Berhe N, Mekasha B, Stene-Johansen K, Krarup H, Pereira AP, Gundersen SG, Johannessen A (2018)
Treatment of chronic hepatitis B in sub-Saharan Africa: 1-year results of a pilot program in Ethiopia
BMC Med, 16 (1), 234
DOI 10.1186/s12916-018-1229-x, PubMed 30554571

Orlien SMS, Ahmed TA, Ismael NY, Berhe N, Lauritzen T, Gundersen SG, Johannessen A (2018)
High Seroprevalence of Autoantibodies Typical of Autoimmune Liver Disease in Eastern Ethiopia: Is Chewing of Khat (Catha edulis) a Triggering Factor?
Can J Gastroenterol Hepatol, 2018, 4980597
DOI 10.1155/2018/4980597, PubMed 30675469

Orlien SMS, Ismael NY, Ahmed TA, Berhe N, Lauritzen T, Roald B, Goldin RD, Stene-Johansen K, Dyrhol-Riise AM, Gundersen SG, Morgan MY, Johannessen A (2018)
Unexplained chronic liver disease in Ethiopia: a cross-sectional study
BMC Gastroenterol, 18 (1), 27
DOI 10.1186/s12876-018-0755-5, PubMed 29439653

Orlien SMS, Sandven I, Berhe NB, Ismael NY, Ahmed TA, Stene-Johansen K, Gundersen SG, Morgan MY, Johannessen A (2018)
Khat chewing increases the risk for developing chronic liver disease: A hospital-based case-control study
Hepatology, 68 (1), 248-257
DOI 10.1002/hep.29809, PubMed 29369368

Publications 2017

Aberra H, Desalegn H, Berhe N, Medhin G, Stene-Johansen K, Gundersen SG, Johannessen A (2017)
Early experiences from one of the first treatment programs for chronic hepatitis B in sub-Saharan Africa
BMC Infect Dis, 17 (1), 438
DOI 10.1186/s12879-017-2549-8, PubMed 28629395

Aberra H, Gordien E, Desalegn H, Berhe N, Medhin G, Mekasha B, Gundersen SG, Gerber A, Stene-Johansen K, Øverbø J, Johannessen A (2017)
Hepatitis delta virus infection in a large cohort of chronic hepatitis B patients in Ethiopia
Liver Int, 38 (6), 1000-1009
DOI 10.1111/liv.13607, PubMed 28980394

Al-Shudifat AE, Al-Shdaifat A, Al-Abdouh AA, Aburoman MI, Otoum SM, Sweedan AG, Khrais I, Abdel-Hafez IH, Johannessen A (2017)
Diabetes Risk Score in a Young Student Population in Jordan: A Cross-Sectional Study
J Diabetes Res, 2017, 8290710
DOI 10.1155/2017/8290710, PubMed 28540309

Al-Shudifat AE, Johannessen A, Azab M, Al-Shdaifat A, AbuMweis SS, Agraib LM, Tayyem RF (2017)
Risk factors for coronary artery disease in patients undergoing elective coronary angiography in Jordan
BMC Cardiovasc Disord, 17 (1), 183
DOI 10.1186/s12872-017-0620-4, PubMed 28693430

Desalegn H, Aberra H, Berhe N, Gundersen SG, Johannessen A (2017)
Are non-invasive fibrosis markers for chronic hepatitis B reliable in sub-Saharan Africa?
Liver Int, 37 (10), 1461-1467
DOI 10.1111/liv.13393, PubMed 28222249

Desalegn H, Johannessen A (2017)
Response to Non-invasive fibrosis markers for chronic hepatitis B in sub-Saharan Africa
Liver Int, 37 (11), 1739
DOI 10.1111/liv.13425, PubMed 29065255

Publications 2016

Stene-Johansen K, Yaqoob N, Overbo J, Aberra H, Desalegn H, Berhe N, Johannessen A (2016)
Dry Blood Spots a Reliable Method for Measurement of Hepatitis B Viral Load in Resource-Limited Settings
PLoS One, 11 (11), e0166201
DOI 10.1371/journal.pone.0166201, PubMed 27820845

Publications 2015

Johannessen A, Lemoine M (2015)
Is aspartate aminotransferase-to-platelet ratio index a reliable tool in human immunodeficiency virus patients in Africa?
Liver Int, 35 (8), 2059
DOI 10.1111/liv.12793, PubMed 25646656

Publications 2014

Pettersen PS, Brox IK, Naman E, Bruun JN, Dyrhol-Riise AM, Trøseid M, Johannessen A (2014)
Antiretroviral treatment failure predicts mortality in rural Tanzania
Int J STD AIDS, 26 (9), 633-9
DOI 10.1177/0956462414548460, PubMed 25122578

Shao ER, Kifaro EG, Chilumba IB, Nyombi BM, Moyo S, Gaseitsiwe S, Musonda R, Johannessen A, Kibiki G, Essex M (2014)
HIV-1 drug mutations in children from northern Tanzania
J Antimicrob Chemother, 69 (7), 1928-32
DOI 10.1093/jac/dku087, PubMed 24729604

Publications 2012

Brantsæter AB, Johannessen A, Holberg-Petersen M, Sandvik L, Naman E, Kivuyo SL, Rollag H, Bruun JN, Kvale D (2012)
Cytomegalovirus viremia in dried blood spots is associated with an increased risk of death in HIV-infected patients: a cohort study from rural Tanzania
Int J Infect Dis, 16 (12), e879-85
DOI 10.1016/j.ijid.2012.08.003, PubMed 23031419

Publications 2011

Johannessen A (2011)
Drug resistance is widespread among children who receive long-term antiretroviral treatment at a rural Tanzanian hospital-author's response
J. Antimicrob. Chemother., 66 (4), 957-958

Johannessen A (2011)
Are men the losers of the antiretroviral treatment scale-up?
AIDS, 25 (9), 1225-6
DOI 10.1097/QAD.0b013e32834403b8, PubMed 21593620

Johannessen A, Naman E, Gundersen SG, Bruun JN (2011)
Antiretroviral treatment reverses HIV-associated anemia in rural Tanzania
BMC Infect Dis, 11, 190
DOI 10.1186/1471-2334-11-190, PubMed 21745396

Publications 2010

Bratholm C, Johannessen A, Naman E, Gundersen SG, Kivuyo SL, Holberg-Petersen M, Ormaasen V, Bruun JN (2010)
Drug resistance is widespread among children who receive long-term antiretroviral treatment at a rural Tanzanian hospital
J Antimicrob Chemother, 65 (9), 1996-2000
DOI 10.1093/jac/dkq234, PubMed 20576637

Johannessen A (2010)
Quantification of HIV-1 RNA on dried blood spots
AIDS, 24 (3), 475-6
DOI 10.1097/QAD.0b013e3283365383, PubMed 20087079

Johannessen A (2010)
Dried blood spots in HIV monitoring: applications in resource-limited settings
Bioanalysis, 2 (11), 1893-908
DOI 10.4155/bio.10.120, PubMed 21083497

Johannessen A, Garrido C, Zahonero N, Naman E, de Mendoza C (2010)
HIV-1 drug resistance testing from dried blood spots collected in rural Tanzania using the ViroSeq HIV-1 Genotyping System
J Antimicrob Chemother, 66 (2), 260-4
DOI 10.1093/jac/dkq433, PubMed 21115444

Johannessen A, Holberg-Petersen M, Lövgaarden G, Naman E, Ormaasen V, Matee MI, Gundersen SG, Bruun JN (2010)
HIV type-1 drug resistance testing on dried blood spots is feasible and reliable in patients who fail antiretroviral therapy in rural Tanzania
Antivir Ther, 15 (7), 1003-9
DOI 10.3851/IMP1660, PubMed 21041915

Trøseid M, Johannessen A (2010)
[A step in the right direction]
Tidsskr Nor Laegeforen, 130 (22), 2223
DOI 10.4045/tidsskr.10.1100, PubMed 21109841

Trøseid M, Johannessen A (2010)
[The battle against HIV can be won, but there is not enough money!]
Tidsskr Nor Laegeforen, 130 (16), 1599-600
DOI 10.4045/tidsskr.10.0705, PubMed 20805855

Publications 2009

Johannessen A, Garrido C, Zahonero N, Sandvik L, Naman E, Kivuyo SL, Kasubi MJ, Gundersen SG, Bruun JN, de Mendoza C (2009)
Dried blood spots perform well in viral load monitoring of patients who receive antiretroviral treatment in rural Tanzania
Clin Infect Dis, 49 (6), 976-81
DOI 10.1086/605502, PubMed 19663598

Johannessen A, Naman E, Kivuyo SL, Kasubi MJ, Holberg-Petersen M, Matee MI, Gundersen SG, Bruun JN (2009)
Virological efficacy and emergence of drug resistance in adults on antiretroviral treatment in rural Tanzania
BMC Infect Dis, 9, 108
DOI 10.1186/1471-2334-9-108, PubMed 19583845

Johannessen A, Trøseid M, Calmy A (2009)
Dried blood spots can expand access to virological monitoring of HIV treatment in resource-limited settings
J Antimicrob Chemother, 64 (6), 1126-9
DOI 10.1093/jac/dkp353, PubMed 19776036

Publications 2008

Johannessen A, Naman E, Ngowi BJ, Sandvik L, Matee MI, Aglen HE, Gundersen SG, Bruun JN (2008)
Predictors of mortality in HIV-infected patients starting antiretroviral therapy in a rural hospital in Tanzania
BMC Infect Dis, 8, 52
DOI 10.1186/1471-2334-8-52, PubMed 18430196

Publications 2006

Johannessen A (2006)
[Buruli ulcer emerging from obscurity]
Tidsskr Nor Laegeforen, 126 (16), 2148
PubMed 16967521

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