Tomasz Bednarczuk

ORCID: 0000-0002-5752-8709
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About
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Research Areas
  • Thyroid Disorders and Treatments
  • Ophthalmology and Eye Disorders
  • Neuroendocrine Tumor Research Advances
  • Diabetes and associated disorders
  • Pituitary Gland Disorders and Treatments
  • Growth Hormone and Insulin-like Growth Factors
  • Hormonal Regulation and Hypertension
  • Adrenal and Paraganglionic Tumors
  • Thyroid Cancer Diagnosis and Treatment
  • Lung Cancer Research Studies
  • Adrenal Hormones and Disorders
  • Digestive system and related health
  • Neuroblastoma Research and Treatments
  • T-cell and B-cell Immunology
  • Cancer, Hypoxia, and Metabolism
  • Vitamin D Research Studies
  • Nutrition and Health Studies
  • Pancreatic and Hepatic Oncology Research
  • Sexual Differentiation and Disorders
  • Erythrocyte Function and Pathophysiology
  • Thyroid and Parathyroid Surgery
  • Glaucoma and retinal disorders
  • Advanced Differential Geometry Research
  • Pancreatic function and diabetes
  • Hormonal and reproductive studies

Medical University of Warsaw
2015-2024

Medical University of Silesia
2014

Universidad Santo Tomás
2014

Polish Academy of Sciences
2000-2013

Mossakowski Medical Research Institute, Polish Academy of Sciences
2012-2013

Endocrinology Research Center
2007

Polish Academy of Learning
2003

Wrocław University of Science and Technology
2003

Kurume University
2000

University of Warsaw
1998

Irina Bancos Angela E. Taylor Vasileios Chortis Alice Sitch Carl Jenkinson and 95 more Caroline Davidge‐Pitts Katharina Lang Stylianos Tsagarakis Magdalena Macech Anna Riester Timo Deutschbein Ivana D Pupovac Tina Kienitz Alessandro Prete Thomas Papathomas Lorna C Gilligan Cristian Bancos Giuseppe Reimondo Magalie Haissaguerre Ljiljana Marina Marianne Aardal Grytaas Ahmed Sajwani Katharina Langton Hannah E Ivison Cedric Shackleton Dana Erickson Miriam Asia Sotiria Palimeri Agnieszka Kondracka Ariadni Spyroglou Cristina L. Ronchi Bojana Simunov Danae A. Delivanis Robert P. Sutcliffe Ioanna Tsirou Tomasz Bednarczuk Martín Reincke Stephanie Burger‐Stritt Richard A. Feelders Letizia Canu Harm R. Haak Graeme Eisenhofer Michael Conall Dennedy Grethe Åstrøm Ueland Miomira Ivović Antoine Tabarin Massimo Terzolo Marcus Quinkler Darko Kaštelan Martin Faßnacht Felix Beuschlein Urszula Ambroziak Dimitra A. Vassiliadi Michael O’Reilly William F. Young Michael Biehl Jonathan J Deeks Wiebke Arlt Stephan Glöckner Richard Sinnott Anthony Stell Maria Candida Barisson Villares Fragoso Darko Kaštelan Ivana D. Pupovac Bojana Simunov Sarah Cazenave Magalie Haissaguerre Antoine Tabarin Jérôme Bertherat Rossella Libé Tina Kienitz Marcus Quinkler Katharina Langton Graeme Eisenhofer Felix Beuschlein Christina Brugger Martín Reincke Anna Riester Ariadni Spyroglou Stephanie Burger‐Stritt Timo Deutschbein Martin Faßnacht Stefanie Hahner Matthias Kroiß Cristina L. Ronchi Sotiria Palimeri Stylianos Tsagarakis Ioanna Tsirou Dimitra A. Vassiliadi Vittoria Basile Elisa Ingargiola Giuseppe Reimondo Massimo Terzolo Letizia Canu Massimo Mannelli Hester Ettaieb Harm R. Haak Thomas Kerkhofs Michael Biehl Richard A. Feelders

Cross-sectional imaging regularly results in incidental discovery of adrenal tumours, requiring exclusion adrenocortical carcinoma (ACC). However, differentiation is hampered by poor specificity characteristics. We aimed to validate a urine steroid metabolomics approach, using profiling as the diagnostic basis for ACC.

10.1016/s2213-8587(20)30218-7 article EN cc-by The Lancet Diabetes & Endocrinology 2020-07-23

Background: Benign adrenal tumors are commonly discovered on cross-sectional imaging. Mild autonomous cortisol secretion (MACS) is regularly diagnosed, but its effect cardiometabolic disease in affected persons ill defined. Objective: To determine burden and steroid excretion with benign without MACS. Design: Cross-sectional study. Setting: 14 endocrine secondary tertiary care centers (recruitment from 2011 to 2016). Participants: 1305 prospectively recruited tumors. Measurements: Cortisol...

10.7326/m21-1737 article EN Annals of Internal Medicine 2022-01-03

Thyroid eye disease (TED) remains challenging for clinicians to evaluate and manage. Novel therapies have recently emerged, their specific roles are still being determined. Most patients with TED develop manifestations while treated hyperthyroidism under the care of endocrinologists. Endocrinologists, therefore, a key role in diagnosis, initial management, selection who require referral specialist care. Given that need guidance endocrinologists charged meeting needs transcends national...

10.1089/thy.2022.0251 article EN cc-by Thyroid 2022-12-01

Thyroid eye disease (TED) remains challenging for clinicians to evaluate and manage. Novel therapies have recently emerged, their specific roles are still being determined. Most patients with TED develop manifestations while treated hyperthyroidism under the care of endocrinologists. Endocrinologists, therefore, a key role in diagnosis, initial management, selection who require referral specialist care. Given that need guidance endocrinologists charged meeting needs transcends national...

10.1530/etj-22-0189 article EN cc-by-nc-nd European Thyroid Journal 2022-11-29

Given the fact that a large number of radiological examinations using iodine-based contrast media (ICM) are performed in everyday practice, clinicians should be aware potential ICM-induced thyroid dysfunction (TD). ICM can induce hyperthyroidism (Hyper) or hypothyroidism (Hypo) due to supraphysiological concentrations iodine solution. The prevalence TD varies from 1 15%. Hyper is predominantly found regions with deficiency and patients underlying nodular goiter latent Graves’ disease....

10.1159/000517175 article EN European Thyroid Journal 2021-01-01

Eye muscle (EM) and retroorbital fat tissue are two major sites of involvement in thyroid-associated ophthalmopathy (TAO). Lymphocytic infiltration these tissues is a prominent histological feature TAO. We have investigated the cytokine gene profiles EM orbital (OF) from patients with Total RNA was isolated 14 OF 29 Cytokine expression assessed by RT-PCR using paired primers for interferon γ (IFNγ), tumor necrosis factor α (TNFα), interleukin (IL)-1β, IL-2, IL-4, IL-6, IL-10, CD4, CD8,...

10.1210/jcem.85.3.6433 article EN The Journal of Clinical Endocrinology & Metabolism 2000-03-01

Susceptibility to Graves' disease (GD) is a significant extent determined by genetic factors of which the best known are those associated with HLA and CTLA4 locus. Recently, two studies on British Caucasians reported that single nucleotide polymorphism, 1858 C > T in PTPN22, encoding Arg620Trp lymphoid protein tyrosine phosphatase (LYP), negative regulator T-cell activation, increases risk GD. The purpose our study was investigate whether PTPN22 'T' allele GD and/or its subsets, defined...

10.1111/j.1365-2265.2005.02279.x article EN Clinical Endocrinology 2005-05-04

Improving accuracy of the available predictive DNA methods is important for their wider use in routine forensic work. Information on age process identification an unknown individual may provide hints that can speed up investigation. methylation markers have been demonstrated to accurate estimation forensics, but there growing evidence be modified by various factors including diseases. We analyzed profile five from different genes (ELOVL2, C1orf132, KLF14, FHL2, and TRIM59) used prediction...

10.1007/s00414-017-1636-0 article EN cc-by International Journal of Legal Medicine 2017-07-19

W ostatnim czasie obserwuje się większe zainteresowanie rzadkimi nowotworami neuroendokrynnymi żołądkowo-jelitowo-trzustkowymi (GEP NEN). Wykrywalność nowotworów neuroendokrynnych w ostatnich latach wzrosła. Ponad 50% GEP NEN stanowią rakowiaki, które najczęściej są znajdowane przypadkowo podczas zabiegu operacyjnego jelicie cienkim i wyrostku robaczkowym oraz momencie rozpoznania przerzutów odległych, głównie do wątroby. Istnieje konieczność współdziałania specjalistów różnych dziedzin...

10.5603/ep.2013.0028 article PL Endokrynologia Polska 2014-01-03

A wide use of imaging techniques results in more frequent diagnosis adrenal incidenataloma.To analyse the current state knowledge on incidentaloma adults order to prepare practical management recommendations.Following a discussion, Polish Society Endocrinology expert working group have analysed available data and summarised analysis form recommendations.Unenhanced computed tomography (CT) may be recommended as an initial assessment examination helpful differentiation between adenomas...

10.5603/ep.a2016.0039 article EN cc-by-nc-nd Endokrynologia Polska 2016-02-01

Continuous progress in the diagnostics and treatment of neuroendocrine neoplasms (NENs), emerging results new clinical trials, guidelines issued by medical societies have prompted experts from Polish Network Neuroendocrine Tumours to update 2017 recommendations regarding management neoplasms. This article presents general for NENs, resulting findings participating Fourth Round Table Conference, entitled "Polish Guidelines Diagnostics Treatment Neoplasms gastrointestinal tract, Żelechów, June...

10.5603/ep.a2022.0049 article EN cc-by-nc-nd Endokrynologia Polska 2022-06-30

OBJECTIVE: The development and severity of Graves' ophthalmopathy (GO) may result from a complex interplay genetic environmental factors. aim this study was to investigate the association cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4) gene polymorphism non-genetic factors (age, sex, cigarette smoking) with GO in two different populations, Polish-Caucasians Japanese. DESIGN: We investigated distribution CTLA-4 A49G 264 Caucasian patients disease (GD), which 95 had clinically evident...

10.1530/eje.0.1480013 article EN European Journal of Endocrinology 2003-01-01

Progress in the diagnostics and therapy of gastro-entero-pancreatic (GEP) neuroendocrine neoplasms (NEN), published results new randomised clinical trials, guidelines issued by European Neuroendocrine Tumour Society (ENETS) have led Polish Network Tumours to update 2013 regarding management these neoplasms. We present general recommendations for NENs, developed experts during Third Round Table Conference - Diagnostics neoplasms: view current recommenda-tions, which took place December 2016...

10.5603/ep.2017.0015 article EN cc-by-nc-nd Endokrynologia Polska 2017-05-08

Significant advances have been made in thyroid can­cer research recent years, therefore relevant clinical guidelines need to be updated. The current Polish "Diagnostics and Treatment of Thyroid Carcinoma" formulated at the "Thyroid Cancer Other Malignancies Endocrine Glands" conference held Wisła November 2015 [1].

10.5603/ep.2018.0014 article EN cc-by-nc-nd Endokrynologia Polska 2018-02-06

Observational studies have demonstrated that variation in normal range thyroid function is associated with major cardiovascular risk factors, including dyslipidemia, hypertension, type 2 diabetes (T2D), and obesity. As observational are prone to residual confounding, reverse causality, selection bias, we used a Mendelian randomization (MR) approach investigate whether these associations causal or not.

10.1089/thy.2020.0393 article EN Thyroid 2020-08-04

Background: Observational studies suggest that even minor variations in thyroid function are associated with the risk of mood disorders, including major depressive disorder (MDD) and bipolar (BD). However, it is unknown whether these associations causal or not. We used a Mendelian randomization (MR) approach to investigate effects thyrotropin (TSH) free thyroxine (fT4) levels on MDD BD risk. Materials Methods: performed two-sample MR analyses using data from largest publicly available...

10.1089/thy.2020.0884 article EN Thyroid 2021-04-24

Objective: Vitamin D-binding protein (DBP) genetic variants have an influence on vitamin D status and, therefore, they may contribute to the development of autoimmune diseases. In this case-control study, we investigated association DBP gene polymorphisms with susceptibility Graves' disease (GD) in a Polish population. Furthermore, analyzed distribution genotypes GD patients divided according clinical (gender, age onset, ophthalmopathy, family history, smoking habits) and parameters (CTLA4...

10.1055/s-2006-924256 article EN Experimental and Clinical Endocrinology & Diabetes 2006-07-26

The presented comprehensive review of current knowledge about genetic factors predisposing to Graves disease (GD) put emphasis on functional significance observed associations. In particular, we discuss recent efforts aimed at refining diseases associations found within the HLA complex and implicating class I as well HLADPB1 loci. We summarize data regarding non-HLA genes such PTPN22, CTLA4, CD40, TSHR TG which have been extensively studied in respect their role GD. findings variants FCRL3...

10.2174/138920211798120772 article EN Current Genomics 2011-11-14

Abstract Objectives Autoimmune thyroid diseases ( ATD s) frequently accompany myasthenia gravis MG ) and may influence its course. We aimed to determine the association impact of with early‐ (<50 years), late‐onset , or thymoma‐ . Materials Methods Prevalence was measured in a cross‐sectional study 343 consecutive patients (236 F, 107 M) aged 4–89 years; 83.8% were seropositive, 2.9%, anti‐Mu SK antibodies detected. Concentrations antithyroid peroxidase antibodies, antithyroglobulin...

10.1002/brb3.537 article EN cc-by Brain and Behavior 2016-08-04

Over the past several years new evidence on management of hypothyroidism has emerged, which influenced recommendations from professional bodies. The presentation hypothyroid patients also changed, and cases are increasingly diagnosed by indiscriminate screening, often identifying with minor biochemical disturbances. Little is known about physician responses attitudes to this changing landscape. THESIS (Treatment Hypothyroidism in Europe Specialists: an International Survey) a large-scale...

10.5603/ep.a2021.0048 article EN cc-by-nc-nd Endokrynologia Polska 2021-05-19

Background. Hypothyroidism is common, however, aspects of its treatment remain controversial. Our survey aimed at documenting choices European thyroid specialists and exploring how patients' persistent symptoms, clinician demographics, geo-economic factors relate to choices. Methods. 17,247 from 28 countries were invited participate in an online questionnaire survey. The included respondent demographic data for hypothyroid patients with symptoms. Geo-economic each country the analyses....

10.1089/thy.2023.0580 article EN Thyroid 2024-02-18

We have studied the polymorphism of 5' flanking region tumour necrosis factor (TNF)-alpha gene in order to better understand genetic background autoimmune thyroid disorders and thyroid-associated ophthalmopathy.We TNF-alpha at positions - 1031 (T C change, termed as 1031C), 863 (C A, A), 857 T, 857T), 308 (G A) 238 Japanese patients with Graves' disease [n = 173, 62 whom had associated ophthalmopathy (American Thyroid Association (ATA) class III or greater)] healthy control subjects (n 575),...

10.1046/j.1365-2265.2000.01011.x article EN Clinical Endocrinology 2000-06-01
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