Sökresultat

Filtyp

Din sökning på "*" gav 535433 sökträffar

Corticotroph Pituitary Carcinoma in a Patient With Lynch Syndrome (LS) and Pituitary Tumors in a Nationwide LS Cohort

Context: Lynch syndrome (LS) is a cancer-predisposing syndrome caused by germline mutations in genes involved in DNA mismatch repair (MMR). Patients are at high risk for several types of cancer, but pituitary tumors have not previously been reported.Case: A 51-year-old man with LS (MSH2 mutation) and a history of colon carcinoma presented with severe Cushing disease and a locally aggressive pituit

Postmenopausal hormone therapy and risk of stroke : A pooled analysis of data from population-based cohort studies

Background: Recent research indicates a favourable influence of postmenopausal hormone therapy (HT) if initiated early, but not late, on subclinical atherosclerosis. However, the clinical relevance of timing of HT initiation for hard end points such as stroke remains to be determined. Further, no previous research has considered the timing of initiation of HT in relation to haemorrhagic stroke ris

How East Germany Fabricated the Myth of HIV Being Man-Made

Despite the fact that the origin of human immunodeficiency virus (HIV) being a contamination and a mutation originating from primates is well-documented alternative narratives are often being heard ofespecially in sub-Saharan Africa. One such narrative is about HIV being man-made in a military laboratory in the United States. In this article, it is shown how this narrative was fabricated by the in

Lifetime attributable risk as an alternative to effective dose to describe the risk of cancer for patients in diagnostic and therapeutic nuclear medicine

The aim of this study is to implement lifetime attributable risk (LAR) predictions of cancer for patients of various age and gender, undergoing diagnostic investigations or treatments in nuclear medicine and to compare the outcome with a population risk estimate using effective dose and the International Commission on Radiological Protection risk coefficients. The radiation induced risk of cancer

Gene and miRNA expression profiles in PBMCs from patients with severe and mild emphysema and PiZZ alpha I-antitrypsin deficiency

Introduction: COPD has complex etiologies involving both genetic and environmental determinants. Among genetic determinants, the most recognized is a severe PiZZ (Glu342Lys) inherited alpha1-antitrypsin deficiency (AATD). Nonetheless, AATD patients present a heterogeneous clinical evolution, which has not been completely explained by sociodemographic or clinical factors. Here we performed the gene

PAM50 provides prognostic information when applied to the lymph node metastases of advanced breast cancer patients

Purpose: Transcriptional pathway activity and the molecular subtypes of breast cancer metastases have been shown to significantly influence patient postrelapse survival. Here, we further determine the relevance of clinically employed gene signatures in the advanced breast cancer (ABC) setting. Experimental Design: Sufficient RNA for expression profiling was obtained from distant metastatic or inop

Preoperative Quantitative MR Tractography Compared with Visual Tract Evaluation in Patients with Neuropathologically Confirmed Gliomas Grades II and III : A Prospective Cohort Study

Background and Purpose. Low-grade gliomas show infiltrative growth in white matter tracts. Diffusion tensor tractography can noninvasively assess white matter tracts. The aim was to preoperatively assess tumor growth in white matter tracts using quantitative MR tractography (3T). The hypothesis was that suspected infiltrated tracts would have altered diffusional properties in infiltrated tract seg

Variations in the practice of molecular radiotherapy and implementation of dosimetry : results from a European survey

Background: Currently, the implementation of dosimetry in molecular radiotherapy (MRT) is not well investigated, and in view of the Council Directive (2013/59/Euratom), there is a need to understand the current availability of dosimetry-based MRT in clinical practice and research studies. The aim of this study was to assess the current practice of MRT and dosimetry across European countries. Metho

Heritability of Atrial Fibrillation

Background - Previous reports have implicated multiple genetic loci associated with AF, but the contributions of genome-wide variation to AF susceptibility have not been quantified. Methods and Results - We assessed the contribution of genome-wide single-nucleotide polymorphism variation to AF risk (single-nucleotide polymorphism heritability, h2 g) using data from 120 286 unrelated individuals of

Improved quantitative 90Y bremsstrahlung SPECT/CT reconstruction with Monte Carlo scatter modeling

Purpose: In 90Y microsphere radioembolization (RE), accurate post-therapy imaging-based dosimetry is important for establishing absorbed dose versus outcome relationships for developing future treatment planning strategies. Additionally, accurately assessing microsphere distributions is important because of concerns for unexpected activity deposition outside the liver. Quantitative 90Y imaging by

Complement C3 Associates With Incidence of Diabetes, but No Evidence of a Causal Relationship

Purpose: This study explored whether complement factor 3 (C3) in plasma is associated with incidence of diabetes in a population-based cohort. We also identified genetic variants related to C3 and explored whether C3 and diabetes share common genetic determinants.Methods: C3 was analyzed in plasma from 4368 nondiabetic subjects, 46 to 68 years old, from the Malmö Diet and Cancer Study. Incidence o

Reduced corneal nerve fiber density in type 2 diabetes by wide-area mosaic analysis

PURPOSE. To determine if corneal subbasal nerve plexus (SBP) parameters derived from widearea depth-corrected mosaic images are associated with type 2 diabetes. METHODS. One hundred sixty-three mosaics were produced from eyes of 82 subjects by laserscanning in vivo confocal microscopy (IVCM). Subjects were of the same age, without (43 subjects) or with type 2 diabetes (39 subjects). Mosaic corneal

Svenska som andraspråk på språkvetenskaplig grund

För ett stort antal elever i ungdoms- och vuxenutbildning gäller det attta sig an den komplexa uppgiften att både utveckla kunskaper i olikaämnen och att erövra ett helt nytt språk: svenska. Språktillägnandetbehöver understödjas på allra bästa sätt för att nå en nivå som kan mötade höga språkliga krav som ställs inom utbildning, yrkesliv och samhälle.Detta ställer i sin tur stora krav på andrasprå

Association Between Early-Life Antibiotic Use and the Risk of Islet or Celiac Disease Autoimmunity

Importance: Evidence is lacking regarding the consequences of antibiotic use in early life and the risk of certain autoimmune diseases.Objective: To test the association between early-life antibiotic use and islet or celiac disease (CD) autoimmunity in genetically at-risk children prospectively followed up for type 1 diabetes (T1D) or CD.Design, Setting, and Participants: HLA-genotyped newborns fr

Perinatal outcomes after treatment with ADHD medication during pregnancy

OBJECTIVES: To analyze perinatal outcomes after maternal use of attention-deficit/ hyperactivity disorder (ADHD) medication during pregnancy. METHODS: The study included singletons born between 2006 and 2014 in Sweden. Data on prescription drug use, pregnancies, deliveries, and the newborn infants' health were obtained from the Swedish Medical Birth Register, the Prescribed Drug Register, and the

Familial Aggregation of Aortic Valvular Stenosis : A Nationwide Study of Sibling Risk

Background - Aortic valvular stenosis (AS) is the most common cause of cardiac valvular replacement surgery. During the last century, the pathogenesis of AS has undergone transitions in developed countries, from rheumatic heart disease to a degenerative calcific pathogenesis. Although a familial component has been described for a subset of cases with a bicuspid valve, data are limited on the overa

Quantifying the soft power of SI

Supplemental Instruction is one of the most successful programmes of peer-assisted study in existence. Numerous studies show that SI attendance correlates with student achievement, regardless of the level of knowledge of the student prior to commencing their studies. The present study, from Humanities at Lund University, Sweden, outlines a method for gauging the effect of SI on soft values such as

Communicating for Funding

Kapitlet beskriver en övning lämplig för studenter i kurser om socialt entreprenörskap. Övningen tillämpar tekniker för kommunikation för att erhålla donationer från olika intressenter.