Asgeir Johannessen

English version of this page
Brukernavn
Besøksadresse Sykehuset i Vestfold Halfdan Wilhelmsens alle 17 3103 Tønsberg
Postadresse Postboks 1171 Blindern 0318 Oslo

Faglige interesser

  • Viral hepatitt
  • HIV/AIDS
  • Infeksjonssykdommer
  • Hepatologi
  • Afrika
  • Internasjonal helse

Bakgrunn

Emneord: Global helse, Infeksjoner, HIV, hepatitt

Publikasjoner

  • Vestad, Beate; Ueland, Thor; Lerum, Tøri Vigeland; Dahl, Tuva Børresdatter; Holm, Kristian & Barratt-Due, Andreas [Vis alle 37 forfattere av denne artikkelen] (2022). Respiratory dysfunction three months after severe COVID-19 is associated with gut microbiota alterations. Journal of Internal Medicine. ISSN 0954-6820. doi: 10.1111/joim.13458.
  • Kåsine, Trine; Riise, Anne Margarita Dyrhol; Barratt-Due, Andreas; Kildal, Anders Benjamin; Olsen, Inge Christoffer & Nezvalova-Henriksen, Katerina [Vis alle 39 forfattere av denne artikkelen] (2021). Neutrophil count predicts outcome in hospitalized COVID-19 patients. Results from the NOR-Solidarity trial. Journal of Internal Medicine. ISSN 0954-6820. 291(2), s. 241–243. doi: 10.1111/joim.13377.
  • Lerum, Tøri Vigeland; Maltzahn, Niklas; Aukrust, Pål; Trøseid, Marius; Nezvalova-Henriksen, Katerina & Kåsine, Trine [Vis alle 27 forfattere av denne artikkelen] (2021). Persistent pulmonary pathology after COVID-19 is associated with high viral load, weak antibody response, and high levels of matrix metalloproteinase-9. Scientific Reports. ISSN 2045-2322. 11, s. 1–12. doi: 10.1038/s41598-021-02547-x. Fulltekst i vitenarkiv
  • Johannessen, Asgeir; Mekasha, Bitsatab; Desalegn, Hailemichael; Aberra, Hanna; Stene-Johansen, Kathrine & Berhe, Nega (2021). Mother-to-Child Transmission of Hepatitis B Virus in Ethiopia. Vaccines. ISSN 2076-393X. 9(5). doi: 10.3390/vaccines9050430. Fulltekst i vitenarkiv
  • Woldemedihn, Gezahegn Mekonnen; Rueegg, Corina Silvia; Desalegn, Hailemichael; Aberra, Hanna; Berhe, Nega & Johannessen, Asgeir (2020). Validity of a point-of-care viral load test for hepatitis B in a low-income setting. Journal of Virological Methods. ISSN 0166-0934. 289. doi: 10.1016/j.jviromet.2020.114057.
  • Orlien, Stian; Ahmed, Tekabe Abdosh; Ismael, Nejib Yusuf; Berhe, Nega; Kran, Anne-Marte Bakken & Gundersen, Svein Gunnar [Vis alle 7 forfattere av denne artikkelen] (2020). Field performance of HBsAg rapid diagnostic tests in rural Ethiopia. Journal of Virological Methods. ISSN 0166-0934. 289. doi: 10.1016/j.jviromet.2020.114061.
  • Desalegn, Hailemichael; Chanie, Yemisrach; Shume, Paulos; Delil, Miftah; Gupta, Neil & Johannessen, Asgeir (2020). Assessment of Noninvasive Markers of Liver Fibrosis in Patients With Chronic Hepatitis C in Ethiopia. Clinical Liver Disease (CLD). ISSN 2046-2484. 16(4), s. 168–172. doi: 10.1002/cld.1040.
  • Al-Shudifat, Abdel-Ellah; Azab, Mohammed; Johannessen, Asgeir; Agraib, Lana & Tayyem, Reema (2019). Is the intake of antioxidants associated with risk of coronary artery disease? A Jordanian case-control study . Topics in Clinical Nutrition. ISSN 0883-5691. 34(4), s. 259–268. doi: 10.1097/TIN.0000000000000185.
  • Desalegn, Hailemichael; Aberra, Hanna; Berhe, Nega; Medhin, Girmay; Mekasha, Bitsatab & Gundersen, Svein Gunnar [Vis alle 7 forfattere av denne artikkelen] (2019). Predictors of mortality in patients under treatment for chronic hepatitis B in Ethiopia: a prospective cohort study. BMC Gastroenterology. ISSN 1471-230X. 19(74). doi: 10.1186/s12876-019-0993-1. Fulltekst i vitenarkiv
  • Aberra, Hanna; Desalegn, Hailemichael; Berhe, Nega; Mekasha, Bitsatab; Medhin, Girmay & Gundersen, Svein Gunnar [Vis alle 7 forfattere av denne artikkelen] (2019). The WHO guidelines for chronic hepatitis B fail to detect half of the patients in need of treatment in Ethiopia. Journal of Hepatology. ISSN 0168-8278. 70(6), s. 1065–1071. doi: 10.1016/j.jhep.2019.01.037.
  • Desalegn, Hailemichael; Aberra, Hanna; Berhe, Nega; Mekasha, Bitsatab; Stene-Johansen, Kathrine & Krarup, Henrik [Vis alle 9 forfattere av denne artikkelen] (2018). Treatment of chronic hepatitis B in sub-Saharan Africa: 1-year results of a pilot program in Ethiopia. BMC Medicine. ISSN 1741-7015. 16. doi: 10.1186/s12916-018-1229-x. Fulltekst i vitenarkiv
  • Orlien, Stian; Ahmed, Tekabe Abdosh; Ismael, Nejib Yusuf; Berhe, Nega; Lauritzen, Trine & Gundersen, Svein Gunnar [Vis alle 7 forfattere av denne artikkelen] (2018). High Seroprevalence of Autoantibodies Typical of Autoimmune Liver Disease in Eastern Ethiopia: Is Chewing of Khat (Catha edulis) a Triggering Factor? Canadian journal of gastroenterology & hepatology. ISSN 2291-2789. s. 1–10. doi: 10.1155/2018/4980597.
  • Azab, Mohammed; Al-Shudifat, Abdel-Ellah; Johannessen, Asgeir; Al-Shdaifat, Amjad; Agraib, Lana & Tayyem, Reema (2018). Are Risk Factors for Coronary Artery Disease Different in Persons with and Without Obesity? Metabolic Syndrome and Related Disorders. ISSN 1540-4196. 16(8), s. 440–445. doi: 10.1089/met.2017.0152.
  • Al-Shudifat, Abdel-Ellah; Azab, Mohammed; Johannessen, Asgeir; Al-Shdaifat, Amjad; Agraib, Lana & Tayyem, Reema (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. Annals of Saudi Medicine. ISSN 0256-4947. 38(2), s. 111–117. doi: 10.5144/0256-4947.2018.111.
  • Orlien, Stian; Sandven, Irene; Berhe, Nega; Ismael, Nejib Yusuf; Ahmed, Tekabe Abdosh & Stene-Johansen, Kathrine [Vis alle 9 forfattere av denne artikkelen] (2018). Khat chewing increases the risk for developing chronic liver disease: A hospital-based case-control study. Hepatology. ISSN 0270-9139. 68(1), s. 248–257. doi: 10.1002/hep.29809.
  • Aberra, Hanna; Gordien, Emmanuel; Desalegn, Hailemichael; Berhe, Nega; Medhin, Girmay & Mekasha, Bitsatab [Vis alle 11 forfattere av denne artikkelen] (2018). Hepatitis delta virus infection in a large cohort of chronic hepatitis B patients in Ethiopia. Liver international (Print). ISSN 1478-3223. 38(6), s. 1000–1009. doi: 10.1111/liv.13607.
  • Orlien, Stian Magnus Staurung; Ismael, Nejib Yusuf; Ahmed, Tekabe Abdosh; Berhe, Nega; Lauritzen, Trine & Roald, Borghild [Vis alle 12 forfattere av denne artikkelen] (2018). Unexplained chronic liver disease in Ethiopia: a cross-sectional study. BMC Gastroenterology. ISSN 1471-230X. 18(1). doi: 10.1186/s12876-018-0755-5. Fulltekst i vitenarkiv
  • Tayyem, Reema; Al-Shudifat, Abdel-Ellah; Johannessen, Asgeir; Bawadi, H A; AbuMweis, Suhad Sameer & Agraib, Lana [Vis alle 9 forfattere av denne artikkelen] (2017). Dietary patterns and the risk of coronary heart disease among Jordanians: A case–control study. NMCD. Nutrition Metabolism and Cardiovascular Diseases. ISSN 0939-4753. 28(3), s. 262–269. doi: 10.1016/j.numecd.2017.10.026.
  • Al-Shudifat, Abdel-Ellah; Johannessen, Asgeir; Azab, Mohammed; Al-Shdaifat, Amjad; AbuMweis, Suhad Sameer & Agraib, Lana [Vis alle 7 forfattere av denne artikkelen] (2017). Risk factors for coronary artery disease in patients undergoing elective coronary angiography in Jordan. BMC Cardiovascular Disorders. ISSN 1471-2261. 17(1). doi: 10.1186/s12872-017-0620-4.
  • Al-Shudifat, Abdel-Ellah; Al-Shdaifat, Amjad; Al-Abdouh, Ahmad Ali; Aburoman, Mohammad Ibrahim; Otoum, Sara Mohammad & Sweedan, Amro Ghaleb [Vis alle 9 forfattere av denne artikkelen] (2017). Diabetes Risk Score in a Young Student Population in Jordan: A Cross-Sectional Study. Journal of Diabetes Research. ISSN 2314-6745. 2017. doi: 10.1155/2017/8290710.
  • Desalegn, Hailemichael; Aberra, Hanna; Berhe, Nega; Gundersen, Svein Gunnar & Johannessen, Asgeir (2017). Are non-invasive fibrosis markers for chronic hepatitis B reliable in sub-Saharan Africa? Liver international (Print). ISSN 1478-3223. 37(10), s. 1461–1467. doi: 10.1111/liv.13393.
  • Aberra, Hanna; Desalegn, Hailemichael; Berhe, Nega; Medhin, Girmay; Stene-Johansen, Kathrine & Gundersen, Svein Gunnar [Vis alle 7 forfattere av denne artikkelen] (2017). Early experiences from one of the first treatment programs for chronic hepatitis B in sub-Saharan Africa. BMC Infectious Diseases. ISSN 1471-2334. 17(1). doi: 10.1186/s12879-017-2549-8. Fulltekst i vitenarkiv
  • Stene-Johansen, Kathrine; Yaqoob, Nadeem; Øverbø, Joakim; Aberra, Hanna; Desalegn, Hailemichael & Berhe, Nega [Vis alle 7 forfattere av denne artikkelen] (2016). Dry blood spots a reliable method for measurement of Hepatitis B viral load in resource-limited settings. PLOS ONE. ISSN 1932-6203. 11(11). doi: 10.1371/journal.pone.0166201. Fulltekst i vitenarkiv
  • Johannessen, Asgeir (2015). Where we are with point-of-care testing. Journal of Viral Hepatitis. ISSN 1352-0504. 22(4), s. 362–365. doi: 10.1111/jvh.12385.
  • Pettersen, Pernille; Brox, Ida Katarina; Naman, Ezra; Bruun, Johan N; Dyrhol-Riise, Anne Ma & Trøseid, Marius [Vis alle 7 forfattere av denne artikkelen] (2015). Antiretroviral treatment failure predicts mortality in rural Tanzania. International Journal of STD and AIDS. ISSN 0956-4624. 26(9), s. 633–639. doi: 10.1177/0956462414548460.
  • Brantsæter, Arne; Johannessen, Asgeir; Holberg-Petersen, Mona; Sandvik, Leiv; Naman, Ezra & Kivuyo, Sokoine [Vis alle 9 forfattere av denne artikkelen] (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. International Journal of Infectious Diseases. ISSN 1201-9712. 16(12), s. E879–E885. doi: 10.1016/j.ijid.2012.08.003.
  • Kivuyo, Sokoine; Johannessen, Asgeir; Trøseid, Marius; Kasubi, Mabula Joseph; Gundersen, Svein Gunnar & Naman, Ezra [Vis alle 10 forfattere av denne artikkelen] (2011). p24 antigen detection on dried blood spots is a feasible and reliable test for infant HIV infection in rural Tanzania. International Journal of STD and AIDS. ISSN 0956-4624. 22(12), s. 719–721. doi: 10.1258/ijsa.2009.009382.
  • Johannessen, Asgeir; Garrido, Carolina; Zahonero, Natalia; Naman, Ezra & de Mendoza, Carmen (2011). HIV-1 drug resistance testing from dried blood spots collected in rural Tanzania using the ViroSeq HIV-1 Genotyping System. Journal of Antimicrobial Chemotherapy. ISSN 0305-7453. 66(2), s. 260–264. doi: 10.1093/jac/dkq433.
  • Johannessen, Asgeir; Naman, Ezra; Gundersen, Svein Gunnar & Bruun, Johan Nikolai (2011). Antiretroviral treatment reverses HIV-associated anemia in rural Tanzania. BMC Infectious Diseases. ISSN 1471-2334. 11. doi: 10.1186/1471-2334-11-190. Fulltekst i vitenarkiv
  • Johannessen, Asgeir (2010). Dried blood spots in HIV monitoring: applications in resource-limited settings. Bioanalysis. ISSN 1757-6180. 2(11), s. 1893–1908. doi: 10.4155/BIO.10.120.
  • Johannessen, Asgeir; Holberg-Petersen, Mona; Løvgården, Gunilla; Naman, Ezra; Ormaasen, Vidar & Matee, Mecky I [Vis alle 8 forfattere av denne artikkelen] (2010). HIV type-1 drug resistance testing on dried blood spots is feasible and reliable in patients who fail antiretroviral therapy in rural Tanzania. Antiviral Therapy. ISSN 1359-6535. 15(7), s. 1003–1009. doi: 10.3851/IMP1660.
  • Bratholm, Clara Sofie; Johannessen, Asgeir; Naman, Ezra; Gundersen, Svein Gunnar; Kivuyo, Sokoine & Holberg-Petersen, Mona [Vis alle 8 forfattere av denne artikkelen] (2010). Drug resistance is widespread among children who receive long-term antiretroviral treatment at a rural Tanzanian hospital. Journal of Antimicrobial Chemotherapy. ISSN 0305-7453. 65(9), s. 1996–2000. doi: 10.1093/jac/dkq234. Fulltekst i vitenarkiv
  • Johannessen, Asgeir; Naman, Ezra; Kivuyo, Sokoine; Kasubi, Mabula J.; Holberg-Petersen, Mona & Matee, M. [Vis alle 9 forfattere av denne artikkelen] (2009). Virological efficacy and emergence of drug resistance in adults on antiretroviral treatment in rural Tanzania. BMC Infectious Diseases. ISSN 1471-2334. 9.
  • Johannessen, Asgeir; Garrido, Carolina; Zahonero, Natalia; Sandvik, Leiv; Naman, Ezra & Kivuyo, Sokoine [Vis alle 10 forfattere av denne artikkelen] (2009). Dried Blood Spots Perform Well in Viral Load Monitoring of Patients Who Receive Antiretroviral Treatment in Rural Tanzania. Clinical Infectious Diseases. ISSN 1058-4838. 49(6), s. 976–981. doi: 10.1086/605502.
  • Johannessen, Asgeir; Trøseid, Marius & Calmy, Alexandra (2009). Dried blood spots can expand access to virological monitoring of HIV treatment in resource-limited settings. Journal of Antimicrobial Chemotherapy. ISSN 0305-7453. 64(6), s. 1126–1129. doi: 10.1093/jac/dkp353.
  • Johannessen, Asgeir; Naman, Ezra; Kivuyo, Sokoine; Kasubi, Mabula; Holberg-Petersen, Mona & Matee, Mecky I [Vis alle 8 forfattere av denne artikkelen] (2009). Virological efficacy and emergence of drug resistance in adults on antiretroviral treatment in rural Tanzania. BMC Infectious Diseases. ISSN 1471-2334. 9. doi: 10.1186/1471-2334-9-108.
  • Johannessen, Asgeir; Garrido, Carolina; Zahonero, Natalia; Sandvik, Leiv; Naman, Ezra & Kivuyo, Sokoine [Vis alle 10 forfattere av denne artikkelen] (2009). Dried Blood Spots perform well in viral load monitoring of patients who receive antiretroviral treatment in rural Tanzania. Clinical Infectious Diseases. ISSN 1058-4838. 49, s. 976–981. doi: 10.1086/605502.
  • Johannessen, Asgeir; Naman, Ezra; Ngowi, Bernhard J; Sandvik, Leif; Matee, M. & Aglen, Henry E [Vis alle 8 forfattere av denne artikkelen] (2008). Predictors of mortality in HIV-infected patients starting antiretroviral therapy in a rural hospital in Tanzania. BMC Infectious Diseases. ISSN 1471-2334. 8.
  • Johannessen, Asgeir; Naman, Ezra; Ngowi, Bernard; Sandvik, Leiv; Matee, Mecky I & Aglen, Henry [Vis alle 8 forfattere av denne artikkelen] (2008). Predictors of mortality in HIV-infected patients starting antiretroviral therapy in a rural hospital in Tanzania. BMC Infectious Diseases. ISSN 1471-2334.

Se alle arbeider i Cristin

  • Johannessen, Asgeir; Aberra, Hanna; Desalegn, Hailemichael; Gordien, Emmanuel & Berhe, Nega (2019). A novel score to select patients for treatment in chronic hepatitis B: Results from a large Ethiopian cohort. . Journal of Hepatology. ISSN 0168-8278. 71(4), s. 840–841. doi: 10.1016/j.jhep.2019.04.006.
  • Orlien, Stian; Berhe, Nega; Morgan, Marsha Yvonne & Johannessen, Asgeir (2019). Khat-related liver disease in sub-Saharan Africa: neglected, yet important. The Lancet Global Health. ISSN 2572-116X. 7(3), s. e310–e310. doi: 10.1016/S2214-109X%2818%2930527-8.
  • Desalegn, Hailemichael & Johannessen, Asgeir (2017). Response to Non-invasive fibrosis markers for chronic hepatitis B in sub-Saharan Africa. Liver international (Print). ISSN 1478-3223. 37(11), s. 1739–1739. doi: 10.1111/liv.13425.
  • Johannessen, Asgeir & Lemoine, Maud (2015). Is aspartate aminotransferase-to-platelet ratio index a reliable tool in human immunodeficiency virus patients in Africa? Liver international (Print). ISSN 1478-3223. 35(8), s. 2059–2059. doi: 10.1111/liv.12793.
  • Johannessen, Asgeir (2011). Drug resistance is widespread among children who receive long-term antiretroviral treatment at a rural Tanzanian hospital-author's response. Journal of Antimicrobial Chemotherapy. ISSN 0305-7453. 66(4), s. 957–958. doi: 10.1093/jac/dkr042.
  • Johannessen, Asgeir (2011). Are men the losers of the antiretroviral treatment scale-up? AIDS (London). ISSN 0269-9370. 25(9), s. 1225–1226. doi: 10.1097/QAD.0b013e32834403b8.
  • Johannessen, Asgeir (2010). Quantification of HIV-1 RNA on dried blood spots. AIDS (London). ISSN 0269-9370. 24(3), s. 475–476. doi: 10.1097/QAD.0b013e3283365383.
  • Trøseid, Marius & Johannessen, Asgeir (2010). Et skritt i riktig retning. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 130(22).

Se alle arbeider i Cristin

Publisert 8. des. 2020 14:40 - Sist endret 30. apr. 2021 15:20