Blar i UiS Brage på forfatter "Gudlaugsson, Einar"
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Better prognostic markers for nonmuscle invasive papillary urothelial carcinomas
Kvikstad, Vebjørn (PhD thesis UiS;, Doctoral thesis, 2022-04)Bladder cancer is a common type of cancer, especially among men in developed countries. Most cancers in the urinary bladder are papillary urothelial carcinomas. They are characterized by a high recurrence frequency (up to ... -
Digital Image Analysis of Ki-67 Stained Tissue Microarrays and Recurrence in Tamoxifen-Treated Breast Cancer Patients
Egeland, Nina Gran; Jonsdottir, Kristin; Lauridsen, Kristina Lystlund; Skaland, Ivar; Hjorth, Cathrine F.; Gudlaugsson, Einar; Hamilton-Dutoit, Stephen Jacques; Lash, Timothy L.; Cronin-Fenton, Deidre; Janssen, Emiel (Peer reviewed; Journal article, 2020-07)Purpose: The proliferation marker Ki-67 has been used as a prognostic marker to separate low- and high-risk breast cancer subtypes and guide treatment decisions for adjuvant chemotherapy. The association of Ki-67 with ... -
Epidemiology and classification of gastroenteropancreatic neuroendocrine neoplasms using current coding criteria
Sandvik, Oddvar Mathias; Søreide, Kjetil; Gudlaugsson, Einar; Kvaløy, Jan Terje; Søreide, Jon Arne (Journal article; Peer reviewed, 2015-09)Background: The lack of uniform criteria for coding of gastroenteropancreatic neuroendocrine neoplasia (GEP-NEN) has hampered previous epidemiological studies. The epidemiology of GEP-NEN was investigated in this study ... -
High-Grade Cervical Intraepithelial Neoplasia (CIN) Associates with Increased Proliferation and Attenuated Immune Signaling
Øvestad, Irene Tveiterås; Engesæter, Birgit Øvstebø; Halle, Mari Kyllesø; Akbari, Saleha; Bicskei, Beatrix; Lapin, Morten; Austdal, Marie; Janssen, Emiel; Krakstad, Camilla; Lillesand, Melinda; Nordhus, Marit; Munk, Ane Cecilie Dæhli; Gudlaugsson, Einar (Peer reviewed; Journal article, 2021-12)Implementation of high-risk human papilloma virus (HPV) screening and the increasing proportion of HPV vaccinated women in the screening program will reduce the percentage of HPV positive women with oncogenic potential. ... -
Homologous Recombination Deficiency Across Subtypes of Primary Breast Cancer
Yndestad, Synnøve; Engebrethsen, Christina; Herencia-Ropero, A.; Nikolaienko, Oleksii; Vintermyr, Olav Karsten; Lillestøl, Reidun Kristine; Minsaas, Laura; Leirvaag, Beryl; Iversen, Gjertrud Titlestad; Gilje, Bjørnar; Blix, Egil Støre; Espelid, Helge; Lundgren, Steinar; Geisler, Jürgen; Aase, Hildegunn Siv; Aas, Turid; Gudlaugsson, Einar; Llop-Guevara, Alba; Serra, Violeta; Janssen, Emiel; Lønning, Per Eystein; Knappskog, Stian; Eikesdal, Hans Petter (Peer reviewed; Journal article, 2023)Purpose Homologous recombination deficiency (HRD) is highly prevalent in triple-negative breast cancer (TNBC) and associated with response to PARP inhibition (PARPi). Here, we studied the prevalence of HRD in non-TNBC to ... -
Influence of pre-operative oral carbohydrate loading vs. standard fasting on tumor proliferation and clinical outcome in breast cancer patients - a randomized trial
Lende, Tone Hoel; Austdal, Marie; Varhaugvik, Anne Elin; Skaland, Ivar; Gudlaugsson, Einar; Kvaløy, Jan Terje; Akslen, Lars A.; Søiland, Håvard; Janssen, Emiel; Baak, Jan P.A. (Journal article; Peer reviewed, 2019-11)Background Conflicting results have been reported on the influence of carbohydrates in breast cancer. Objective To determine the influence of pre-operative per-oral carbohydrate load on proliferation in breast ... -
Metabolic consequences of perioperative oral carbohydrates in breast cancer patients - an explorative study
Lende, Tone Hoel; Austdal, Marie; Bathen, Tone Frost; Varhaugvik, Anne Elin; Skaland, Ivar; Gudlaugsson, Einar; Egeland, Nina Gran; Lunde, Siri; Akslen, Lars A.; Jonsdottir, Kristin; Janssen, Emiel; Søiland, Håvard; Baak, Jan P.A. (Journal article; Peer reviewed, 2019-12)Background The metabolic consequences of preoperative carbohydrate load in breast cancer patients are not known. The present explorative study investigated the systemic and tumor metabolic changes after preoperative ... -
MiR-18a and miR-18b are expressed in the stroma of oestrogen receptor alpha negative breast cancers
Egeland, Nina Gran; Jonsdottir, Kristin; Aure, Miriam Ragle; Sahlberg, Kristine Kleivi; Kristensen, Vessela N.; Cronin-Fenton, Deirdre; Skaland, Ivar; Gudlaugsson, Einar; Baak, Jan P.A.; Janssen, Emiel (Peer reviewed; Journal article, 2020-05)Background Previously, we have shown that miR-18a and miR-18b gene expression strongly correlates with high proliferation, oestrogen receptor -negativity (ER−), cytokeratin 5/6 positivity and basal-like features of breast ... -
Mitotic activity index and CD25+ lymphocytes predict risk of stage progression in non-muscle invasive bladder cancer
Lillesand, Melinda; Kvikstad, Vebjørn; Mangrud, Målfrid Ok; Gudlaugsson, Einar; Van Diermen, Bianca; Skaland, Ivar; Baak, Johannes Peter A; Janssen, Emiel (Peer reviewed; Journal article, 2020-06)In urothelial cell type non-muscle invasive urinary bladder carcinoma, TNM stage and WHO grade are widely used to classify patients into low and high-risk groups for prognostic and therapeutic decision-making. However, ... -
The overriding role of surgery and tumor grade for long-term survival in patients with gastroenteropancreatic neuroendocrine neoplasms: A population-based cohort study
Søreide, Jon Arne; Kvaløy, Jan Terje; Lea, Dordi; Sandvik, Oddvar M.; Al-Saiddi, Mohammed; Haslerud, Torjan M.; Garresori, Herish; Karlsen, Lars Normann; Gudlaugsson, Einar; Søreide, Kjetil (Peer reviewed; Journal article, 2021-06)Background Gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) comprise a heterogeneous disease group. Factors that affect long-term survival remain uncertain. Complete population-representative cohorts with long-term ... -
Prevalence of PD‑L1 expression is associated with EMAST, density of peritumoral T‑cells and recurrence‑free survival in operable non‑metastatic colorectal cancer
Watson, Martin Matthew Christian; Lea, Dordi; Gudlaugsson, Einar; Skaland, Ivar; Hagland, Hanne Røland; Søreide, Kjetil (Peer reviewed; Journal article, 2020-08)Introduction Microsatellite instability (MSI) predict response to anti-PD1 immunotherapy in colorectal cancer (CRC). CRCs with MSI have higher infiltration of immune cells related to a better survival. Elevated Microsatellite ... -
Prognostic value and reproducibility of different microscopic characteristics in the WHO grading systems for pTa and pT1 urinary bladder urothelial carcinomas
Kvikstad, Vebjørn; Mangrud, Målfrid Ok; Gudlaugsson, Einar; Dalen, Ingvild; Espeland, Hans; Baak, Jan P.A.; Janssen, Emiel (Peer reviewed; Journal article, 2019-08)Background: European treatment guidelines for pTa and pT1 urinary bladder urothelial carcinoma depend highly on stage and WHO-grade. Both the WHO73 and the WHO04 grading systems show some intra- and interobserver variability. ... -
A template to quantify the location and density of CD3 + and CD8 + tumor-infiltrating lymphocytes in colon cancer by digital pathology on whole slides for an objective, standardized immune score assessment
Lea, Dordi; Watson, Martin Matthew Christian; Skaland, Ivar; Hagland, Hanne Røland; Lillesand, Melinda; Gudlaugsson, Einar; Søreide, Kjetil (Peer reviewed; Journal article, 2021)Background In colon cancer, the location and density of tumor-infiltrating lymphocytes (TILs) can classify patients into low and high-risk groups for prognostication. While a commercially available ‘Immunoscore®’ exists, ... -
Validation study of MARCKSL1 as a prognostic factor in lymph node-negative breast cancer patients
Egeland, Nina Gran; Austdal, Marie; Van Diermen, Bianca; Rewcastle, Emma; Gudlaugsson, Einar; Baak, Jan P.A.; Skaland, Ivar; Janssen, Emiel; Jonsdottir, Kristin (Peer reviewed; Journal article, 2019)Protein expression of Myristoylated alanine-rich C kinase substrate like-1 (MARCKSL1) has been identified as a prognostic factor in lymph-node negative (LN-) breast cancer patients. We aim to validate MARCKSL1 protein ...