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Associations between cardiorespiratory fitness and weight loss in patients with severe obesity undergoing an intensive lifestyle intervention program: retrospective cohort study.

Berge J, Støren Ø, Hertel JK, Gjevestad E, Småstuen MC, Hjelmesæth J.

BMC Endocr Disord. 2019 Jul 1;19(1):69. doi: 10.1186/s12902-019-0394-z.


The influence of bariatric surgery on oral drug bioavailability in patients with obesity: A systematic review.

Angeles PC, Robertsen I, Seeberg LT, Krogstad V, Skattebu J, Sandbu R, Åsberg A, Hjelmesaeth J.

Obes Rev. 2019 Sep;20(9):1299-1311. doi: 10.1111/obr.12869. Epub 2019 Jun 24. Review.


Persuasive System Design Principles and Behavior Change Techniques to Stimulate Motivation and Adherence in Electronic Health Interventions to Support Weight Loss Maintenance: Scoping Review.

Asbjørnsen RA, Smedsrød ML, Solberg Nes L, Wentzel J, Varsi C, Hjelmesæth J, van Gemert-Pijnen JE.

J Med Internet Res. 2019 Jun 21;21(6):e14265. doi: 10.2196/14265. Review.


Health-related quality of life after camp-based family obesity treatment: an RCT.

Benestad B, Karlsen TI, Småstuen MC, Lekhal S, Hertel JK, Steinsbekk S, Kolotkin RL, Ødegård RA, Hjelmesæth J.

BMJ Paediatr Open. 2019 Apr 3;3(1):e000413. doi: 10.1136/bmjpo-2018-000413. eCollection 2019.


Monitoring children and adolescents with severe obesity: body mass index (BMI), BMI z-score or percentage above the International Obesity Task Force overweight cut-off?

Løkling HL, Roelants M, Kommedal KG, Skjåkødegård H, Apalset EM, Benestad B, Morken MH, Hjelmesaeth J, Juliusson PB.

Acta Paediatr. 2019 Jun 14. doi: 10.1111/apa.14898. [Epub ahead of print]


Single-centre, triple-blinded, randomised, 1-year, parallel-group, superiority study to compare the effects of Roux-en-Y gastric bypass and sleeve gastrectomy on remission of type 2 diabetes and β-cell function in subjects with morbid obesity: a protocol for the Obesity surgery in Tønsberg (Oseberg) study.

Borgeraas H, Hjelmesæth J, Birkeland KI, Fatima F, Grimnes JO, Gulseth HL, Halvorsen E, Hertel JK, Hillestad TOW, Johnson LK, Karlsen TI, Kolotkin RL, Kvan NP, Lindberg M, Lorentzen J, Nordstrand N, Sandbu R, Seeberg KA, Seip B, Svanevik M, Valderhaug TG, Hofsø D.

BMJ Open. 2019 Jun 4;9(6):e024573. doi: 10.1136/bmjopen-2018-024573.


Bone Turnover Markers After Standard and Distal Roux-en-Y Gastric Bypass: Results from a Randomized Controlled Trial.

Svanevik M, Risstad H, Hofsø D, Blom-Høgestøl IK, Kristinsson JA, Sandbu R, Småstuen MC, Thorsby PM, Mala T, Hjelmesæth J.

Obes Surg. 2019 Sep;29(9):2886-2895. doi: 10.1007/s11695-019-03909-1.


Association of time of obesity onset with comorbidities in treatment-seeking men and women with severe obesity.

Borgeraas H, Barstad LH, Størdal Lund R, Fredheim JM, Hertel JK, Hjelmesæth J.

Obes Sci Pract. 2018 Sep 17;4(5):427-436. doi: 10.1002/osp4.298. eCollection 2018 Oct.


Cardiometabolic risk factors differ among adolescents with obesity in three European countries - a cross-sectional study.

Benestad B, Júlíusson PB, Siegfried W, Lekhal S, Småstuen MC, Hertel JK, Agosti F, Marazzi N, Hjelmesaeth J, Sartorio A.

Acta Paediatr. 2019 Mar;108(3):493-501. doi: 10.1111/apa.14542. Epub 2018 Sep 17.


Effects of Cognitive Behavioral Therapy on Eating Behaviors, Affective Symptoms, and Weight Loss After Bariatric Surgery: a Randomized Clinical Trial.

Hjelmesæth J, Rosenvinge JH, Gade H, Friborg O.

Obes Surg. 2019 Jan;29(1):61-69. doi: 10.1007/s11695-018-3471-x.


Managing patients with prediabetes and type 2 diabetes after coronary events: individual tailoring needed - a cross-sectional study.

Munkhaugen J, Hjelmesæth J, Otterstad JE, Helseth R, Sollid ST, Gjertsen E, Gullestad L, Perk J, Moum T, Husebye E, Dammen T.

BMC Cardiovasc Disord. 2018 Aug 3;18(1):160. doi: 10.1186/s12872-018-0896-z.


Bariatric Surgery and Hypertension.

Hjelmesæth J, Jakobsen GS, Nordstrand N.

JAMA. 2018 Jun 19;319(23):2441. doi: 10.1001/jama.2018.4446. No abstract available.


Impact of body weight, low energy diet and gastric bypass on drug bioavailability, cardiovascular risk factors and metabolic biomarkers: protocol for an open, non-randomised, three-armed single centre study (COCKTAIL).

Hjelmesæth J, Åsberg A, Andersson S, Sandbu R, Robertsen I, Johnson LK, Angeles PC, Hertel JK, Skovlund E, Heijer M, Ek AL, Krogstad V, Karlsen TI, Christensen H, Andersson TB, Karlsson C.

BMJ Open. 2018 May 29;8(5):e021878. doi: 10.1136/bmjopen-2018-021878.


Obesity Management Task Force of the European Association for the Study of Obesity Released "Practical Recommendations for the Post-Bariatric Surgery Medical Management".

Busetto L, Dicker D, Azran C, Batterham RL, Farpour-Lambert N, Fried M, Hjelmesæth J, Kinzl J, Leitner DR, Makaronidis JM, Schindler K, Toplak H, Yumuk V.

Obes Surg. 2018 Jul;28(7):2117-2121. doi: 10.1007/s11695-018-3283-z.


Gender-related differences in cardiometabolic risk factors and lifestyle behaviors in treatment-seeking adolescents with severe obesity.

Barstad LH, Júlíusson PB, Johnson LK, Hertel JK, Lekhal S, Hjelmesæth J.

BMC Pediatr. 2018 Feb 14;18(1):61. doi: 10.1186/s12887-018-1057-3.


Association of Bariatric Surgery vs Medical Obesity Treatment With Long-term Medical Complications and Obesity-Related Comorbidities.

Jakobsen GS, Småstuen MC, Sandbu R, Nordstrand N, Hofsø D, Lindberg M, Hertel JK, Hjelmesæth J.

JAMA. 2018 Jan 16;319(3):291-301. doi: 10.1001/jama.2017.21055.


Practical Recommendations of the Obesity Management Task Force of the European Association for the Study of Obesity for the Post-Bariatric Surgery Medical Management.

Busetto L, Dicker D, Azran C, Batterham RL, Farpour-Lambert N, Fried M, Hjelmesæth J, Kinzl J, Leitner DR, Makaronidis JM, Schindler K, Toplak H, Yumuk V.

Obes Facts. 2017;10(6):597-632. doi: 10.1159/000481825. Epub 2017 Dec 6.


Effects of probiotics on body weight, body mass index, fat mass and fat percentage in subjects with overweight or obesity: a systematic review and meta-analysis of randomized controlled trials.

Borgeraas H, Johnson LK, Skattebu J, Hertel JK, Hjelmesaeth J.

Obes Rev. 2018 Feb;19(2):219-232. doi: 10.1111/obr.12626. Epub 2017 Oct 18.


Severe obesity is a limitation for the use of body mass index standard deviation scores in children and adolescents.

Júlíusson PB, Roelants M, Benestad B, Lekhal S, Danielsen Y, Hjelmesaeth J, Hertel JK.

Acta Paediatr. 2018 Feb;107(2):307-314. doi: 10.1111/apa.14113. Epub 2017 Oct 27.


New curves for body mass index among children and adolescents.

Júlíusson PB, Hjelmesæth J, Bjerknes R, Roelants M.

Tidsskr Nor Laegeforen. 2017 Oct 2;137(18). doi: 10.4045/tidsskr.17.0570. Print 2017 Oct 3. Norwegian, English. No abstract available.


Useful textbook on diabetes.

Hjelmesæth J.

Tidsskr Nor Laegeforen. 2017 Sep 4;137(16). doi: 10.4045/tidsskr.17.0425. Print 2017 Sep 5. Norwegian, English. No abstract available.


Patient-Reported Outcome Measures 2 Years After Standard and Distal Gastric Bypass-a Double-Blind Randomized Controlled Trial.

Svanevik M, Risstad H, Karlsen TI, Kristinsson JA, Småstuen MC, Kolotkin RL, Søvik TT, Sandbu R, Mala T, Hjelmesæth J.

Obes Surg. 2018 Mar;28(3):606-614. doi: 10.1007/s11695-017-2891-3.


Next-generation sequencing of the monogenic obesity genes LEP, LEPR, MC4R, PCSK1 and POMC in a Norwegian cohort of patients with morbid obesity and normal weight controls.

Nordang GBN, Busk ØL, Tveten K, Hanevik HI, Fell AKM, Hjelmesæth J, Holla ØL, Hertel JK.

Mol Genet Metab. 2017 May;121(1):51-56. doi: 10.1016/j.ymgme.2017.03.007. Epub 2017 Mar 29.


The association between severity of King's Obesity Staging Criteria scores and treatment choice in patients with morbid obesity: a retrospective cohort study.

Valderhaug TG, Aasheim ET, Sandbu R, Jakobsen GS, Småstuen MC, Hertel JK, Hjelmesæth J.

BMC Obes. 2016 Dec 7;3:51. eCollection 2016.


Re: Peroral behandling av vitamin B12-mangel.

Hjelmesæth J.

Tidsskr Nor Laegeforen. 2016 Nov 22;136(21):1787. eCollection 2016 Nov. Norwegian. No abstract available.

Free Article

Camp-based family treatment of childhood obesity: randomised controlled trial.

Benestad B, Lekhal S, Småstuen MC, Hertel JK, Halsteinli V, Ødegård RA, Hjelmesæth J.

Arch Dis Child. 2017 Apr;102(4):303-310. doi: 10.1136/archdischild-2015-309813. Epub 2016 Nov 2.


Standard vs Distal Roux-en-Y Gastric Bypass in Patients With Body Mass Index 50 to 60: A Double-blind, Randomized Clinical Trial.

Risstad H, Svanevik M, Kristinsson JA, Hjelmesæth J, Aasheim ET, Hofsø D, Søvik TT, Karlsen TI, Fagerland MW, Sandbu R, Mala T.

JAMA Surg. 2016 Dec 1;151(12):1146-1155. doi: 10.1001/jamasurg.2016.2798.


The effect of surgical and non-surgical weight loss on N-terminal pro-B-type natriuretic peptide and its relation to obstructive sleep apnea and pulmonary function.

Gabrielsen AM, Omland T, Brokner M, Fredheim JM, Jordan J, Lehmann S, Lund MB, Hjelmesæth J, Hofsø D.

BMC Res Notes. 2016 Sep 13;9(1):440. doi: 10.1186/s13104-016-2241-x.


Association between Body Mass Index, Asymmetric Dimethylarginine and Risk of Cardiovascular Events and Mortality in Norwegian Patients with Suspected Stable Angina Pectoris.

Borgeraas H, Hertel JK, Svingen GF, Pedersen ER, Seifert R, Nygård O, Hjelmesæth J.

PLoS One. 2016 Mar 22;11(3):e0152029. doi: 10.1371/journal.pone.0152029. eCollection 2016.


Bone resorption following weight loss surgery is associated with treatment procedure and changes in secreted Wnt antagonists.

Hofsø D, Bollerslev J, Sandbu R, Jørgensen A, Godang K, Hjelmesæth J, Ueland T.

Endocrine. 2016 Jul;53(1):313-21. doi: 10.1007/s12020-016-0903-z. Epub 2016 Mar 8.


Serum trans fatty acids, asymmetric dimethylarginine and risk of acute myocardial infarction and mortality in patients with suspected coronary heart disease: a prospective cohort study.

Borgeraas H, Hertel JK, Seifert R, Berge RK, Bohov P, Ueland PM, Nygård O, Hjelmesæth J.

Lipids Health Dis. 2016 Feb 27;15:38. doi: 10.1186/s12944-016-0204-9.


Effect of weight loss on subclinical myocardial injury: A clinical trial comparing gastric bypass surgery and intensive lifestyle intervention.

Lyngbakken MN, Omland T, Nordstrand N, Norseth J, Hjelmesæth J, Hofsø D.

Eur J Prev Cardiol. 2016 May;23(8):874-80. doi: 10.1177/2047487315618796. Epub 2015 Dec 9.


Overweight or obese – you are not your condition.

Hjelmesæth J.

Tidsskr Nor Laegeforen. 2015 Sep 8;135(16):1473. doi: 10.4045/tidsskr.15.0543. eCollection 2015 Sep 8. English, Norwegian. No abstract available.


Gastric bypass surgery has a weight-loss independent effect on post-challenge serum glucose levels.

Hofsø D, Birkeland KI, Holst JJ, Bollerslev J, Sandbu R, Røislien J, Hjelmesæth J.

Diabetol Metab Syndr. 2015 Aug 22;7:69. doi: 10.1186/s13098-015-0066-8. eCollection 2015.


Fructose content of low calorie diets: effect on cardiometabolic risk factors in obese women with polycystic ovarian syndrome: a randomized controlled trial.

Johnson LK, Holven KB, Nordstrand N, Mellembakken JR, Tanbo T, Hjelmesæth J.

Endocr Connect. 2015 Sep;4(3):144-54. doi: 10.1530/EC-15-0047.


Plastic surgery after bariatric surgery.

Gunnarson GL, Frøyen JK, Sandbu R, Thomsen JB, Hjelmesæth J.

Tidsskr Nor Laegeforen. 2015 Jun 16;135(11):1044-9. doi: 10.4045/tidsskr.14.0814. eCollection 2015 Jun 16. Review. English, Norwegian.


Body Mass Index Is Associated with Impaired Semen Characteristics and Reduced Levels of Anti-Müllerian Hormone across a Wide Weight Range.

Andersen JM, Herning H, Aschim EL, Hjelmesæth J, Mala T, Hanevik HI, Bungum M, Haugen TB, Witczak O.

PLoS One. 2015 Jun 12;10(6):e0130210. doi: 10.1371/journal.pone.0130210. eCollection 2015.


The association between hyperandrogenemia and the metabolic syndrome in morbidly obese women.

Valderhaug TG, Hertel JK, Nordstrand N, Dale PO, Hofsø D, Hjelmesæth J.

Diabetol Metab Syndr. 2015 May 21;7:46. doi: 10.1186/s13098-015-0040-5. eCollection 2015.


Myotubes from severely obese type 2 diabetic subjects accumulate less lipids and show higher lipolytic rate than myotubes from severely obese non-diabetic subjects.

Bakke SS, Feng YZ, Nikolić N, Kase ET, Moro C, Stensrud C, Damlien L, Ludahl MO, Sandbu R, Solheim BM, Rustan AC, Hjelmesæth J, Thoresen GH, Aas V.

PLoS One. 2015 Mar 19;10(3):e0119556. doi: 10.1371/journal.pone.0119556. eCollection 2015.


Perioperative Outcomes of Proximal and Distal Gastric Bypass in Patients with BMI Ranged 50-60 kg/m(2)--A Double-Blind, Randomized Controlled Trial.

Svanevik M, Risstad H, Hofsø D, Schou CF, Solheim B, Søvik TT, Kristinsson J, Hjelmesæth J, Mala T, Sandbu R.

Obes Surg. 2015 Oct;25(10):1788-95. doi: 10.1007/s11695-015-1621-y.


Myotubes from lean and severely obese subjects with and without type 2 diabetes respond differently to an in vitro model of exercise.

Feng YZ, Nikolić N, Bakke SS, Kase ET, Guderud K, Hjelmesæth J, Aas V, Rustan AC, Thoresen GH.

Am J Physiol Cell Physiol. 2015 Apr 1;308(7):C548-56. doi: 10.1152/ajpcell.00314.2014. Epub 2015 Jan 21.


Randomised studies--useful for whom?

Hjelmesæth J.

Tidsskr Nor Laegeforen. 2014 Oct 14;134(19):1819. doi: 10.4045/tidsskr.14.0968. eCollection 2014 Oct 14. English, Norwegian. No abstract available.


Effects of intensive lifestyle intervention and gastric bypass on aortic stiffness: a 1-year nonrandomized clinical study.

Gjevestad E, Hjelmesaeth J, Sandbu R, Nordstrand N.

Obesity (Silver Spring). 2015 Jan;23(1):37-45. doi: 10.1002/oby.20880. Epub 2014 Aug 30.


Effectiveness of a cognitive behavioral therapy for dysfunctional eating among patients admitted for bariatric surgery: a randomized controlled trial.

Gade H, Hjelmesæth J, Rosenvinge JH, Friborg O.

J Obes. 2014;2014:127936. doi: 10.1155/2014/127936. Epub 2014 Jul 21.


Validation of a portable monitor for the diagnosis of obstructive sleep apnea in morbidly obese patients.

Fredheim JM, Røislien J, Hjelmesæth J.

J Clin Sleep Med. 2014 Jul 15;10(7):751-7, 757A. doi: 10.5664/jcsm.3864.


Parental marital status and childhood overweight and obesity in Norway: a nationally representative cross-sectional study.

Biehl A, Hovengen R, Grøholt EK, Hjelmesæth J, Strand BH, Meyer HE.

BMJ Open. 2014 Jun 4;4(6):e004502. doi: 10.1136/bmjopen-2013-004502.


Association of body mass index with risk of acute myocardial infarction and mortality in Norwegian male and female patients with suspected stable angina pectoris: a prospective cohort study.

Borgeraas H, Hertel JK, Svingen GF, Seifert R, Pedersen EK, Schartum-Hansen H, Hjelmesæth J, Nygård O.

BMC Cardiovasc Disord. 2014 May 21;14:68. doi: 10.1186/1471-2261-14-68.


Psychological correlates to dysfunctional eating patterns among morbidly obese patients accepted for bariatric surgery.

Gade H, Rosenvinge JH, Hjelmesæth J, Friborg O.

Obes Facts. 2014;7(2):111-9. doi: 10.1159/000362257. Epub 2014 Mar 29.


Predictors of weight loss after an intensive lifestyle intervention program in obese patients: a 1-year prospective cohort study.

Karlsen TI, Søhagen M, Hjelmesæth J.

Health Qual Life Outcomes. 2013 Oct 3;11:165. doi: 10.1186/1477-7525-11-165.

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