8,008 results match your criteria: "Karolinska Hospital[Affiliation]"

Objective: To investigate if autoimmune thyroid disease (AITD) impacts rheumatoid arthritis (RA) disease activity or response to methotrexate.

Methods: A nationwide register-based cohort study of 9 004 patients with new-onset RA from the Swedish Rheumatology Quality Register year 2006-2016, with linkage to other nationwide registers to identify comorbidity with AITD defined as thyroxine prescription before RA diagnosis, excluding non-autoimmune causes. We compared RA disease activity using 28-joint Disease Activity Score (DAS28) and its components, and EULAR response, between patients with and without AITD, using logistic regression.

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Imaging Mutant Huntingtin Aggregates: Development of a Potential PET Ligand.

J Med Chem

August 2020

CHDI Management/CHDI Foundation, 6080 Center Drive, Suite 700, Los Angeles, California 90045, United States.

Mutant huntingtin (mHTT) protein carrying the elongated N-terminal polyglutamine (polyQ) tract misfolds and forms protein aggregates characteristic of Huntington's disease (HD) pathology. A high-affinity ligand specific for mHTT aggregates could serve as a positron emission tomography (PET) imaging biomarker for HD therapeutic development and disease progression. To identify such compounds with binding affinity for polyQ aggregates, we embarked on systematic structural activity studies; lead optimization of aggregate-binding affinity, unbound fractions in brain, permeability, and low efflux culminated in the discovery of compound , which exhibited target engagement in autoradiography (ARG) studies in brain slices from HD mouse models and postmortem human HD samples.

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Lifetime sport practice and brain metabolism in Amyotrophic Lateral Sclerosis.

Neuroimage Clin

June 2021

Institute of Cognitive Sciences and Technologies, C.N.R., Rome, Italy; Department of Nuclear Medicine, Karolinska Hospital, Stockholm, Sweden.

Objective: To evaluate the metabolic correlates of lifetime sport practice in ALS through brain F-FDG-PET.

Methods: 131 patients completed a questionnaire about lifetime exposures, including physical activity related to sports, hobbies and occupations, and underwent brain F-FDG-PET. Exposure to sports was expressed as MET (Metabolic Equivalent of Task).

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De novo arteriovenous shunts after endovascular cure of cerebrospinal macro arteriovenous fistulas. A role for the vasa vasorum?

J Neuroradiol

March 2021

Department of Diagnostic and Interventional Neuroradiology, Hôpital Foch, Suresnes, France. Electronic address:

Background And Purpose: Macro-arteriovenous fistulas (MAVFs) are arteriovenous shunts draining into a giant venous ectasia. They can be treated by surgery or embolisation. Angiographic controls are usually performed rapidly after treatment in order to prove the cure of the lesion but no long term angiographies are generally scheduled.

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Objectives: With regard to the generally slow growth of meningioma, it is essential to analyse clinical treatment results in a long-term perspective. The purpose of the present analysis is to provide clinical data after Gamma Knife radiosurgery of meningioma in a 10-year perspective together with a review of the current literature.

Methods: The current study is a retrospective analysis of 86 consecutive Swedish patients with meningiomas treated using Gamma Knife radiosurgery at the Karolinska Hospital Stockholm between March 1991 and May 2001.

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Background: Reported patterns of familial aggregation of head and neck cancer (HNC) vary greatly, with many studies hampered by the limited number of subjects.

Methods: Altogether 923 early-onset (≤40 years old) HNC probands, their first-degree relatives, spouses, and siblings' offspring were ascertained. Cumulative risk and standardized incidence ratios (SIRs) were estimated.

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Oral squamous cell carcinoma (OSCC) is a common malignancy of the head and neck region. OSCC has a relatively low survival rate and the incidence of the disease is increasing in some geographic areas. Staging and grading of OSCC are established prerequisites for management, as they influence risk stratification and are the first step toward personalized treatment.

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In HPV-negative oropharyngeal squamous cell carcinoma, elevated toll-like receptor 2 immunoexpression may increase the risk of disease-specific mortality.

Oral Oncol

August 2020

Department of Pathology, University of Helsinki, HUSLAB and Helsinki University Hospital, P.O. Box 21, 00014 Helsinki, Finland; Research Programs Unit, Translational Cancer Medicine, University of Helsinki, P.O. Box 63, 00014 Helsinki, Finland; Department of Oral Pathology and Radiology, Institute of Dentistry, Faculty of Medicine, University of Turku, Turku, Finland.

Objectives: In oropharyngeal squamous cell carcinoma (OPSCC), toll-like receptors (TLR) 5 and 7 associate with the tumor's human papilloma virus (HPV) status (Jouhi et al., 2017). TLR 2, on the other hand, has been linked to head and neck squamous cell carcinoma (HNSCC), and to oral carcinogenesis (Farnebo et al.

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Clinical outcome following cerebral AVM hemorrhage.

Acta Neurochir (Wien)

July 2020

Department of Surgery, Div. of Neurosurgery, National University Hospital, 5 Lower Kent Ridge Road, Singapore, 119074, Singapore.

Background: A significant difference exists between the published results reporting the clinical outcome following brain arteriovenous malformation (AVM) ruptures. Information about the outcome following hemorrhage in an AVM population treated with radiosurgery could provide additional information to assess the risk of mortality and morbidity following an AVM hemorrhage.

Methods: Clinical outcome was studied in 383 patients, the largest patient population yet studied, who suffered from a symptomatic hemorrhage after Gamma Knife® surgery (GKS) but before confirmed AVM obliteration.

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Article Synopsis
  • Educational attainment serves as a proxy for socioeconomic status (SES), which is linked to increased risks of hypertension and high blood pressure (BP).
  • The study focused on exploring genetic factors influencing BP by examining how education levels (specifically "Some College" and "Graduated College") interact with genetics, using large-scale multi-ancestry analyses to identify both known and new genetic loci associated with BP.
  • From two phases of research involving over 400,000 participants, the study discovered 84 previously recognized and 18 new genetic loci related to BP, particularly noting the importance of SES and educational attainment in understanding genetic influences on BP regulation.
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At present, analysis of diet and bladder cancer (BC) is mostly based on the intake of individual foods. The examination of food combinations provides a scope to deal with the complexity and unpredictability of the diet and aims to overcome the limitations of the study of nutrients and foods in isolation. This article aims to demonstrate the usability of supervised data mining methods to extract the food groups related to BC.

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Background: The etiological role of human papillomavirus (HPV) in oropharyngeal squamous cell carcinoma (OPSCC) is confirmed. However, the role of other oncoviruses in OPSCC is unknown.

Materials And Methods: A total of 158 consecutive OPSCC patients treated with curative intent were included.

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Background: Neuroinflammation plays an important role in neonatal hypoxic-ischemic encephalopathy (HIE). Although microglia are largely responsible for injury-induced inflammatory response, they play beneficial roles in both normal and disease states. However, the effects of microglial depletion on neonatal HIE remain unclear.

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Objective: Both environmental and genetic factors are known to contribute to the development of anorexia nervosa (AN), but the exact etiology remains poorly understood. Herein, we studied the transcriptional regulation of the endocannabinoid system, an interesting target for body weight maintenance and the control of food intake and energy balance.

Method: We used two well-characterized animal models of AN: (a) the activity-based anorexia (ABA) model in which rats, housed with running wheels and subjected to daily food restriction, show reductions in body weight and increase in physical activity; (b) the genetic anx/anx mouse displaying the core features of AN: low food intake and emaciation.

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The 2019 novel coronavirus disease (COVID-19) is a highly contagious zoonosis produced by SARS-CoV-2 that is spread human-to-human by respiratory secretions. It was declared by the WHO as a public health emergency. The most susceptible populations, needing mechanical ventilation, are the elderly and people with associated comorbidities.

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Elevated TLR5 expression in vivo and loss of NF-κΒ activation via TLR5 in vitro detected in HPV-negative oropharyngeal squamous cell carcinoma.

Exp Mol Pathol

June 2020

Department of Pathology, University of Helsinki, HUSLAB and Helsinki University Hospital, P. O. Box 21, 00014 Helsinki, Finland; Department of Surgery, University of Helsinki and Helsinki University Hospital, P. O. Box 20, FI-00014, Helsinki, Finland; Department of Oral Pathology and Radiology, Institute of Dentistry, Faculty of Medicine, University of Turku, Turku, Finland.

In oropharyngeal squamous cell carcinoma (OPSCC), the expression pattern of toll-like receptors (TLRs), in comparison between human papillomavirus (HPV)-positive and -negative tumors differs. TLRs control innate immune responses by activating, among others, the nuclear factor-κΒ (NF-κΒ) signaling pathway. Elevated NF-κΒ activity is detectable in several cancers and regulates cancer development and progression.

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The lack of facile methods for the specific characterization of malignant thyroid nodules makes the diagnosis of thyroid cancer (TC) challenging. Due to its restricted expression in such nodules, the cell-associated lectin galectin-3 (Gal3) has emerged as a marker for TC with growing interest for imaging as well as targeted radionuclide therapy. To accelerate translation into clinical application, we have developed a cognate chimeric human antigen-binding fragment (Fab) derived from the rat anti-Gal3 monoclonal antibody M3/38.

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Ataxias constitute a group of heterogeneous diseases with overlapping symptoms. The clinical investigation should primarily seek for treatable conditions such as neurometabolic disorders and autoimmune diseases. Rapid progression is often characteristic for paraneoplastic cerebellar degeneration, autoimmune diseases or multiple system atrophy (MSA).

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Background: The optimal evidence-based prophylactic antibiotic regimen for surgical site infections following major head and neck surgery remains a matter of debate.

Methods: Medline, Cochrane, and Embase were searched for the current best evidence. Retrieved manuscripts were screened according to the PRISMA guidelines.

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Background: The current treatment results of laryngeal squamous cell carcinoma still remain modest. Various prognostic factors have been investigated and need to be included in the management decision making.

Methods: We reviewed the pertinent literature regarding host, tumor, and treatment factors as prognostic indicators that influence outcome in patients diagnosed with laryngeal squamous cell carcinoma.

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Background: The incidence and survival of oral squamous cell carcinoma (OSCC) patients have increased in recent years. Understanding their long-term survival aspects is essential for optimal treatment and follow-up planning. Almost one in five cancers diagnosed occurs nowadays in individuals with a previous diagnosis of cancer.

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Susac syndrome is an autoimmune disease characterized by the clinical triad of encephalopathy, branch retinal artery occlusions and sensorineural hearing loss. It most commonly affects young women. Susac syndrome is most likely underdiagnosed, not the least since only 13% have the clinical triad upon presentation.

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Chimeric antigen receptor (CAR)-engineered T-cell therapy is becoming one of the most promising approaches in the treatment of cancer. On June 28, 2018, the Committee for Advanced Therapies (CAT) and the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency adopted a positive opinion, recommending the granting of a marketing authorization for the medicinal product Kymriah for pediatric and young adult patients up to 25 years of age with B-cell acute lymphoblastic leukemia (ALL) that is refractory, in relapse after transplant, or in second or later relapse and for adult patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL) after two or more lines of systemic therapy. Kymriah became one of the first European Union-approved CAR T therapies.

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Health-related quality of life among tonsillar carcinoma patients in Sweden in relation to treatment and comparison with quality of life among the population.

Head Neck

May 2020

Department of Otorhinolaryngology-Head and Neck Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden.

Background: The health-related quality of life (HRQOL) of tonsillar carcinoma survivors was explored to investigate any HRQOL differences associated with tumor stage and treatment. The survivors' HRQOL was also compared to reference scores from the population.

Methods: In this exploratory cross-sectional study patients were invited 15 months after their diagnosis and asked to answer two quality of life questionnaires (EORTC QLQ- C30, EORTC QLQ- HN35), 405 participated.

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The immune response has an important role in cancer progression. At the same time, anti-tumor effect of the immune response has been speculated to cause destruction of cancer cells. Recent studies have highlighted the significance of tumor-infiltrating lymphocytes (TILs) in different cancers.

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