Tomas Sjoeberg Bexelius

Dr. Tomas Sjoeberg Bexelius

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Research Focus & Metrics

Academic Career Length

22Years (2005-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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17 November 2015 in British Journal of Cancer
Verified
Journal Article
Open access
YLYunxia Lu
Yunxia Lu
LRLuis Alberto García Rodríguez
Luis Alberto García Rodríguez
LMLinnéa Malgerud
Linnéa Malgerud
AGAntonio González-Pérez
Antonio González-Pérez
MMMar Martín-Pérez
Mar Martín-Pérez
Tomas Sjoeberg BexeliusTomas Sjoeberg Bexelius
Tomas Sjoeberg Bexelius
Nature - the world's best science and medicine on your desktop

10 February 2016 in Postgraduate Medical Journal
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Tomas Sjoeberg BexeliusTomas Sjoeberg Bexelius
Tomas Sjoeberg Bexelius
COCaroline Olsson
Caroline Olsson
HJHans Järnbert-Pettersson
Hans Järnbert-Pettersson
MPMalin Parmskog
Malin Parmskog
SPSari Ponzer
Sari Ponzer
MDMarie Dahlin
Marie Dahlin
Background Medical students’ choice of their future specialty is influenced by several factors, including working conditions and type of patient relations. The aim of this study was to investigate the association between the choice of specialty and personality traits. Methods This is a cross-sectional questionnaire-based study of 399 alumni from Karolinska Institutet Medical School who were assumed to undergo specialty training at the time of the survey in 2013. The Big Five Inventory was used to assess the personality traits extraversion, agreeableness, conscientiousness, neuroticism and openness to experience. Medical specialties were categorised as primary care, psychiatry, internal medicine and surgical and hospital service specialties. Adjustments were made for demographic factors and the method of selection for medical school admission. Results The response rate was 72% (n=289, of which 262 were in training to become specialists). Among these, surgeons scored lower in agreeableness than physicians in primary care, internal medicine and hospital services. Psychiatrists and hospital service physicians showed lower conscientiousness compared with surgeons. Conclusions We found distinctive differences in personality traits between medical specialties even after adjusting for other potential explanatory variables. Since there are differences between specialties, for example, surgeons and psychiatrists, this supports previous findings that personality may affect medical students’ specialty choice also in a Swedish setting.

1 October 2007 in Clinical Gastroenterology and Hepatology
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Journal Article
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Tomas Sjoeberg BexeliusTomas Sjoeberg Bexelius
Tomas Sjoeberg Bexelius
LRLuis A. García Rodríguez
Luis A. García Rodríguez
MLMats Lindblad
Mats Lindblad

4 December 2018 in BMJ Paediatrics Open
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Journal Article
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Tomas Sjoeberg BexeliusTomas Sjoeberg Bexelius
Tomas Sjoeberg Bexelius
MAMargareta Ahle
Margareta Ahle
AEAnders Elfvin
Anders Elfvin
OBOscar Björling
Oscar Björling
JLJonas F Ludvigsson
Jonas F Ludvigsson
RARoland E Andersson
Roland E Andersson
Background and objective Paediatric intestinal failure (IF) is a disease entity characterised by gut insufficiency often related to short bowel syndrome. It is commonly caused by surgical removal of a large section of the small intestine in association with necrotising enterocolitis (NEC), which usually affects premature infants. This study investigated the incidence and risk of IF in preterm infants with or without NEC. Design A matched cohort study to investigate the incidence and risk factors for IF in a population-based setting in Sweden from 1987 to 2009 using the Swedish Patient Register. Participants Infants with a diagnosis of NEC (n=720) were matched for gestational age and year of birth with reference individuals without NEC (n=3656). The study cohort was censored at death, IF or at end of follow-up (2 years of age). We calculated HRs with 95%CIs for IF using Cox regression, adjusting for pertinent perinatal factors. Results IF was 15 times more common in the infants with NEC compared with the reference infants (HR=7.2, with 95% CI 3.7 to 14.0). Other risk factors for IF were small for gestational age, extreme preterm birth and abdominal surgery. Neonatal mortality in infants with NEC decreased from 20.6% in 1987–1993 to 10.4% in 2007–2009. Conclusion IF was more common in the infants with NEC but was also linked to extreme preterm birth, a history of abdominal surgery and small for gestational age. IF was more common at the end of the study period, indicating that it increases when more preterm infants with NEC survive the neonatal period.

21 April 2020 in Frontiers in Oncology
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Tomas Sjoeberg BexeliusTomas Sjoeberg Bexelius
Tomas Sjoeberg Bexelius
AWAjla Wasti
Ajla Wasti
JCJulia C. Chisholm
Julia C. Chisholm
Desmoplastic small round cell tumor (DSRCT) is a devastating disease which most commonly affects adolescents, with a male predominance. Despite the best multimodality treatment efforts, most patients will ultimately not survive more than 3–5 years after diagnosis. Some research trials in soft-tissue sarcoma and Ewing sarcoma include DSRCT patients but few studies have been tailored to the specific clinical needs and underlying cytogenetic abnormalities characterizing this disease such as the typical EWSR1-WT1 gene fusion. Downstream activation of EWSR1-WT1 gene fusion includes signaling pathways of platelet-derived growth factor (PDGF), vascular endothelial growth factor (VEGF), and insulin growth factor (IGF)-1. Other biological pathways that are activated and expressed in DSRCT cells include endothelial growth factor receptor (EGFR), androgen receptor pathway, c-KIT, MET, and transforming growth factor (TGF) beta. Investigation of somatic mutations, copy number alterations (CNA), and chromosomes in DSRCT samples suggests that deregulation of mesenchymal-epithelial reverse transition (MErT)/epithelial-mesenchymal transition (EMT) and DNA damage repair (DDR) may be important in DSRCT. This mini review looks at known druggable targets in DSRCT and existing clinical evidence for targeted treatments, particularly multityrosine kinase inhibitors such as pazopanib, imatinib, and sorafenib alone or in combination with other agents such as mTOR (mammalian target of rapamycin) inhibitors. The aim is to increase shared knowledge about current available treatments and identify gaps in research to further efforts toward clinical development of targeted agents.

1 August 2013 in Pancreas
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Tomas Sjoeberg BexeliusTomas Sjoeberg Bexelius
Tomas Sjoeberg Bexelius
RLRickard Ljung
Rickard Ljung
FMFredrik Mattsson
Fredrik Mattsson
JLJesper Lagergren
Jesper Lagergren
The low-grade inflammation that characterizes cardiovascular disorders may facilitate the development of pancreatitis; therefore, we investigated the connection between cardiovascular disorders and acute pancreatitis. A nested population-based case-control study was conducted in Sweden in 2006–2008. Cases had a first episode of acute pancreatitis diagnosed in the nationwide Patient Register. Controls were matched on age, sex, and calendar year and randomly selected from all Swedish residents (40–84 years old). Exposure to cardiovascular diseases (hypertension, ischemic heart disease, congestive heart failure, and stroke) was identified in the Patient Register. Relative risk of acute pancreatitis was estimated by odds ratios with 95% confidence intervals using logistic regression adjusting for confounders (matching variables, alcohol disease, chronic obstructive pulmonary disease, type 2 diabetes, number of distinct medications, and other cardiovascular diseases). The study included 6161 cases and 61,637 control subjects. Cardiovascular disorders were positively associated with acute pancreatitis (adjusted odds ratio, 1.35; 95% confidence interval, 1.25–1.45). This population-based study indicates an association between cardiovascular disease and acute pancreatitis. Specifically, ischemic heart disease and hypertension seem to increase the risk of acute pancreatitis. Further research is needed to determine causality.