Browsing UiS Brage by Author "Gudlaugsson, Einar"
Now showing items 1-15 of 15
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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 ... -
From Research to Clinical Diagnostics: Developing and Validating Biomarkers and Artificial Intelligence for Pathology
Rewcastle, Emma (PhD thesis UiS;, Doctoral thesis, 2024)In 2021, digital pathology was deployed in the hospitals of the western health region of Norway. Histological tissue specimens previously viewed under the microscope on glass slides, are now being scanned, and whole slide ... -
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 ...