Publications 2025

Abusdal M, Normann KR, Nyman TA, Øystese KAB, Sundaram AYM, Dahlberg D, Lekva T, Bollerslev J, Berg JP, Olarescu NC (2025)
PCSK1N as a Tumor Size Marker and an ER Stress Response Protein in Corticotroph Pituitary Adenomas
J Clin Endocrinol Metab, 110 (4), 1065-1075
DOI 10.1210/clinem/dgae643, PubMed 39288010

Olarescu NC, Jørgensen AP, Atai S, Wiedmann MKH, Dahlberg D, Bollerslev J, Heck A (2025)
Pasireotide as first line medical therapy for selected patients with acromegaly
Pituitary, 28 (3), 48
DOI 10.1007/s11102-025-01514-3, PubMed 40216609

Risum K, Olarescu NC, Godang K, Marstein HS, Bollerslev J, Sanner H (2025)
Visceral adipose tissue is related to interleukin 6 and resistin in juvenile idiopathic arthritis - a case-control study
Rheumatol Int, 45 (3), 63
DOI 10.1007/s00296-025-05820-8, PubMed 40085146

Publications 2024

Falch CM, Godang K, Lekva T, Ueland T, Heck A, Bollerslev J, Olarescu NC (2024)
Long-term depot specific changes in adipose tissue after treatment of acromegaly
Eur J Endocrinol, 190 (3), K37-K42
DOI 10.1093/ejendo/lvae016, PubMed 38401530

Øystese KA, Olarescu NC, Lindskog C, Xheka F, Berg-Johnsen J, Berg JP, Bollerslev J, Casar-Borota O (2024)
Stem cell-associated transcription factors in non-functioning pituitary neuroendocrine tumours
Free Neuropathol, 5
DOI 10.17879/freeneuropathology-2024-5396, PubMed 38845811

Publications 2023

Falch CM, Arlien-Søborg MC, Dal J, Sundaram AYM, Michelsen AE, Ueland T, Olsen LG, Heck A, Bollerslev J, Jørgensen JOL, Olarescu NC (2023)
Gene expression profiling of subcutaneous adipose tissue reveals new biomarkers in acromegaly
Eur J Endocrinol, 188 (3)
DOI 10.1093/ejendo/lvad031, PubMed 36895180

Falch CM, Dupont AK, Olarescu NC, Wiedmann M, Dahlberg D, Bollerslev J, Berg-Johnsen J, Heck A (2023)
Long-term control of acromegaly after pituitary surgery in South-Eastern Norway
Acta Neurochir (Wien), 165 (10), 3003-3010
DOI 10.1007/s00701-023-05772-7, PubMed 37665404

Kolnes AJ, Øystese KAB, Sjöstedt E, Olarescu NC, Heck A, Pahnke J, Dahlberg D, Berg-Johnsen J, Ringstad G, Casar-Borota O, Bollerslev J, Jørgensen AP (2023)
TGFBR3L is associated with gonadotropin production in non-functioning gonadotroph pituitary neuroendocrine tumours
Pituitary, 26 (2), 227-236
DOI 10.1007/s11102-023-01310-x, PubMed 36952069

Marstein HS, Witczak BN, Godang K, Olarescu NC, Schwartz T, Flatø B, Molberg Ø, Bollerslev J, Sjaastad I, Sanner H (2023)
Adipokine profile in long-term juvenile dermatomyositis, and associations with adipose tissue distribution and cardiac function: a cross-sectional study
RMD Open, 9 (1)
DOI 10.1136/rmdopen-2022-002815, PubMed 36828644

Publications 2022

Falch CM, Olarescu NC, Bollerslev J, Dekkers OM, Heck A (2022)
Trends in incidence and mortality risk for acromegaly in Norway: a cohort study
Endocrine, 80 (1), 152-159
DOI 10.1007/s12020-022-03275-6, PubMed 36525222

Publications 2020

Eieland AK, Normann KR, Sundaram AYM, Nyman TA, Øystese KAB, Lekva T, Berg JP, Bollerslev J, Olarescu NC (2020)
Distinct Pattern of Endoplasmic Reticulum Protein Processing and Extracellular Matrix Proteins in Functioning and Silent Corticotroph Pituitary Adenomas
Cancers (Basel), 12 (10)
DOI 10.3390/cancers12102980, PubMed 33066652

Gatto F, Perez-Rivas LG, Olarescu NC, Khandeva P, Chachlaki K, Trivellin G, Gahete MD, Cuny T, on behalf of the ENEA Young Researchers Committee (EYRC) (2020)
Diagnosis and Treatment of Parasellar Lesions
Neuroendocrinology, 110 (9-10), 728-739
DOI 10.1159/000506905, PubMed 32126547

Kolnes AJ, Øystese KAB, Olarescu NC, Ringstad G, Berg-Johnsen J, Casar-Borota O, Bollerslev J, Jørgensen AP (2020)
FSH Levels Are Related to E-cadherin Expression and Subcellular Location in Nonfunctioning Pituitary Tumors
J Clin Endocrinol Metab, 105 (8), 2587-94
DOI 10.1210/clinem/dgaa281, PubMed 32421791

Sjöstedt E, Kolnes AJ, Olarescu NC, Mitsios N, Hikmet F, Sivertsson Å, Lindskog C, Øystese KAB, Jørgensen AP, Bollerslev J, Casar-Borota O (2020)
TGFBR3L-An Uncharacterised Pituitary Specific Membrane Protein Detected in the Gonadotroph Cells in Non-Neoplastic and Tumour Tissue
Cancers (Basel), 13 (1)
DOI 10.3390/cancers13010114, PubMed 33396509

Publications 2019

Bollerslev J, Heck A, Olarescu NC (2019)
MANAGEMENT OF ENDOCRINE DISEASE: Individualised management of acromegaly
Eur J Endocrinol, 181 (2), R57-R71
DOI 10.1530/EJE-19-0124, PubMed 31100716

Godang K, Lekva T, Normann KR, Olarescu NC, Øystese KAB, Kolnes A, Ueland T, Bollerslev J, Heck A (2019)
Hip Structure Analyses in Acromegaly: Decrease of Cortical Bone Thickness After Treatment: A Longitudinal Cohort Study
JBMR Plus, 3 (12), e10240
DOI 10.1002/jbm4.10240, PubMed 31844828

Olarescu NC, Perez-Rivas LG, Gatto F, Cuny T, Tichomirowa MA, Tamagno G, Gahete MD, EYRC (ENEA Young Researcher Committee) (2019)
Aggressive and Malignant Prolactinomas
Neuroendocrinology, 109 (1), 57-69
DOI 10.1159/000497205, PubMed 30677777

Publications 2017

Falch CM, Sundaram AYM, Øystese KA, Normann KR, Lekva T, Silamikelis I, Eieland AK, Andersen M, Bollerslev J, Olarescu NC (2017)
Gene expression profiling of fast- and slow-growing non-functioning gonadotroph pituitary adenomas
Eur J Endocrinol, 178 (3), 295-307
DOI 10.1530/EJE-17-0702, PubMed 29259037

Publications 2016

Godang K, Olarescu NC, Bollerslev J, Heck A (2016)
Treatment of acromegaly increases BMD but reduces trabecular bone score: a longitudinal study
Eur J Endocrinol, 175 (2), 155-64
DOI 10.1530/EJE-16-0340, PubMed 27220351

Normann KR, Øystese KAB, Berg JP, Lekva T, Berg-Johnsen J, Bollerslev J, Olarescu NC (2016)
Selection and validation of reliable reference genes for RT-qPCR analysis in a large cohort of pituitary adenomas
Mol Cell Endocrinol, 437, 183-189
DOI 10.1016/j.mce.2016.08.030, PubMed 27561203

Olarescu NC, Bollerslev J (2016)
The Impact of Adipose Tissue on Insulin Resistance in Acromegaly
Trends Endocrinol Metab, 27 (4), 226-237
DOI 10.1016/j.tem.2016.02.005, PubMed 26948712

Publications 2015

Olarescu NC, Berryman DE, Householder LA, Lubbers ER, List EO, Benencia F, Kopchick JJ, Bollerslev J (2015)
GH action influences adipogenesis of mouse adipose tissue-derived mesenchymal stem cells
J Endocrinol, 226 (1), 13-23
DOI 10.1530/JOE-15-0012, PubMed 25943560

Olarescu NC, Heck A, Godang K, Ueland T, Bollerslev J (2015)
The Metabolic Risk in Patients Newly Diagnosed with Acromegaly Is Related to Fat Distribution and Circulating Adipokines and Improves after Treatment
Neuroendocrinology, 103 (3-4), 197-206
DOI 10.1159/000371818, PubMed 25592241

Publications 2014

Olarescu NC, Jørgensen AP, Godang K, Jurik AG, Frøslie KF, Bollerslev J (2014)
Dual-energy X-ray absorptiometry is a valid method to estimate visceral adipose tissue in adult patients with Prader-Willi syndrome during treatment with growth hormone
J Clin Endocrinol Metab, 99 (9), E1727-31
DOI 10.1210/jc.2014-2059, PubMed 24955611

Ueland T, Olarescu NC, Jørgensen AP, Otterdal K, Aukrust P, Godang K, Lekva T, Bollerslev J (2014)
Increased serum and bone matrix levels of the secreted Wnt antagonist DKK-1 in patients with growth hormone deficiency in response to growth hormone treatment
J Clin Endocrinol Metab, 100 (2), 736-43
DOI 10.1210/jc.2014-2912, PubMed 25459913

Publications 2013

Olarescu NC, Ueland T, Godang K, Lindberg-Larsen R, Jørgensen JO, Bollerslev J (2013)
Inflammatory adipokines contribute to insulin resistance in active acromegaly and respond differently to different treatment modalities
Eur J Endocrinol, 170 (1), 39-48
DOI 10.1530/EJE-13-0523, PubMed 24092547

Publications 2012

Olarescu NC, Ueland T, Lekva T, Dahl TB, Halvorsen B, Aukrust P, Bollerslev J (2012)
Adipocytes as a source of increased circulating levels of nicotinamide phosphoribosyltransferase/visfatin in active acromegaly
J Clin Endocrinol Metab, 97 (4), 1355-62
DOI 10.1210/jc.2011-2417, PubMed 22319029

Publications 2011

Ueland T, Lekva T, Otterdal K, Dahl TB, Olarescu NC, Jørgensen AP, Fougner KJ, Brixen K, Aukrust P, Bollerslev J (2011)
Increased serum and bone matrix levels of transforming growth factor {beta}1 in patients with GH deficiency in response to GH treatment
Eur J Endocrinol, 165 (3), 393-400
DOI 10.1530/EJE-11-0442, PubMed 21653735