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Prostate cancer constitutes an essential public health issue, as it is a major cause of male deaths. Early detection through an organised testing program with the prostate-specific antigen (PSA) test and systematic biopsy is not in place in most countries due to the risk of over-diagnosis and over-treatment of low-risk cancers. Now there are two proposed approaches to tackle this problem; magnetic resonance imaging (MRI) and the serum-based reflex test “Stockholm3”.
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Breast cancer is the most common cancer type in women globally, but there is a continuous decline in mortality rates. A partial explanation for this may be that effective treatments are being developed for subgroups of breast cancer patients. It is still challenging to optimise treatment plans for every individual.
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Through the ESPRESSO cohort, researchers from Massachusetts General Hospital, Boston, University of Newcastle, Australia, University of Washington, Seattle, and Karolinska Institutet examined the risk of cancer among 75,000 patients with a diagnosis of diverticular disease and colorectal histopathology. The paper is now published in JNCI, the Journal of the National Cancer Institute.
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Hepatitis A is an acute liver disease caused by the hepatitis A virus (HAV) and transmitted via the faecal-oral route through person-to-person transmission, contaminated food or water. While hepatitis A infection is mostly asymptomatic in children, the frequency and severity of symptoms increases with age, with the elderly and patients with other liver disease at risk of hospitalisation, acute liver failure and death.
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From byte to bench to bed side – addressing large and complex data sets in biomedicine
KI Network Medicine Alliance offers an advanced course in Network Medicine 19th-20th of October 2022
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Esophageal cancer is the seventh most common cancer world-wide and a lethal malignancy causing a considerably high number of deaths. There is currently no promising method for prevention, early detection, or screening of esophageal cancer so most patients are diagnosed at an advanced stage, which is associated with a poor prognosis.
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Svenska Läkaresällskapet (The Swedish Medical Society, SLS) has decided to award Professor Jonas F Ludvigsson at Karolinska Institutet with the society's prestigious Jubilee Award. The prize winner is awarded SEK 150,000 and the SLS century medal in silver.
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In a new thesis from the Department of Medical Epidemiology and Biostatistics, Chen Wang used nationwide Swedish register data to assess the long-term health of children conceived with assisted reproductive techniques (ART) and attempted to develop prediction models of pregnancy complications among women undergoing ART.
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In precision medicine, predicting the risk of an event during a specific period may help, for example, to identify patients that need early preventive treatment. Modern machine learning (ML) techniques are therefore ideal for building these predictions.
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Centre for Bioinformatics and Biostatistics arranges a networking event for researchers within bioinformatics and biostatistics Friday October 7th from 12 pm to 6 pm. The event takes place right after the conference Collaboration in Science 2022 and will be held in Neo building at Campus Flemingsberg. Register before September 9th!
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Audience: Medarbetare
Universitetstandvården, Biovetenskaper och näringslära, Medicin, Huddinge, Neurobiologi, vårdvetenskap och samhälle, Odontologi, Klinisk forskning och utbildning, Södersjukhuset, Klinisk vetenskap, intervention och teknik, Laboratoriemedicin
End-stage liver disease (ESLD), including advanced liver cirrhosis and primary liver cancer, is the final stage of long-standing injury to the liver due to risk factors such as chronic viral hepatitis and alcoholic liver disease. There is a high disease burden and mortality globally, especially in sub-Saharan African (SSA) countries such as Ghana, where the primary cause of HCC and cirrhosis is infection with hepatitis B virus (HBV).
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Microscopic colitis is the most recently recognized inflammatory condition of the large intestine in which abnormal reactions of the immune system cause inflammation of the inner lining of the colon. At present, more than 10,000 people in Sweden are estimated to be living with the disease. Previously, insufficient awareness and knowledge of microscopic colitis have led to underdiagnosis of the disorder, leaving patients untreated.
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Are you interested in recruiting a bioinformatician or biostatistician? The centre for bioinformatics and biostatistics (CBB) is coordinating recruitments with possibility to make joint employments.
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Audience: Medarbetare
Mikrobiologi, tumör- och cellbiologi, Laboratoriemedicin, Klinisk vetenskap, intervention och teknik, Universitetstandvården, Biovetenskaper och näringslära, Medicin, Huddinge, Neurobiologi, vårdvetenskap och samhälle, Odontologi, Klinisk neurovetenskap, Kvinnors och barns hälsa, Onkologi-Patologi, Global folkhälsa, Molekylär medicin och kirurgi, Medicin, Solna, Kliniska vetenskaper, Danderyds sjukhus, Komparativ Medicin, Medicinsk biokemi och biofysik, Medicinsk epidemiologi och biostatistik, Enheten för toxikologiska vetenskaper, Lärande, Informatik, Management och Etik, Fysiologi och farmakologi, INCF, Neurovetenskap, Cell- och molekylärbiologi
Enoch Yi-Tung Chen has been awarded the Swedish Society for Medical Statistics (Föreningen för Medicinsk Statistik, FMS) prize for best student project in the area of medical statistics during 2020. The prize, which includes an award of 5000 SEK, was announced at the FMS annual general meeting on 25 March 2021.
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Today's research is generating more and more big data, which means that the demand for bioinformatics and biostatistics is growing. Karolinska Institutet and Karolinska University Hospital are therefore establishing a new centre at Campus Flemingsberg that will offer expertise and networking opportunities for the preclinical and clinical research environment in the area.
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Chlamydia trachomatis infection is the most common bacterial sexually transmitted infection (STI), with about 127 million new cases estimated annually worldwide. Since it is an asymptomatic infection, individuals may carry it for a long time and unknowingly transmit the infection to others.
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Dr Kung-Lee Liang, a pioneer in the field of biostatistics, gave a webinar via zoom with more than 100 attendees, including the President of KI, Ole Petter Ottersen. Dr. Liang spoke about how biostatistics contributed to medical science in the 20th century, and how we can rise to meet the current and future challenges in public health.
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The Charlson co-morbidity index (CCI) is a disease index that was originally created to predict short-term mortality but is increasingly used as a proxy for comorbidity burden, and is often used as a co-variate, for instance in regression models. There are currently several available versions of the CCI. The existence of multiple morbidity indices creates confusion, increases the risk of mistakes and requires individual researchers to spend considerable time examining included codes.
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One woman in eight develops breast cancer during her lifetime in the Western world and although mammography screening reduces mortality by early detection, approximately one fourth of the women who develop breast cancer are diagnosed within two years after a negative screen.
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Nasopharyngeal carcinoma (NPC), or nasopharynx cancer, is a malignant disease characterized by unique geographic distribution endemic to southern China, Southeast Asia, and the Middle East/North Africa. It is known that the interaction of Epstein-Barr Virus infection, environmental and lifestyle factors, and genetic susceptibility, contributes to NPC carcinogenesis.
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Shihua Sun has investigated the associations between attention-deficit/hyperactivity disorder (ADHD) and specific adverse outcomes including asthma and premature death. In his thesis, Shihua included four studies to clarify the magnitude and etiology of the associations, as well as potential effects from medication treatment that may prevent poor prognosis.
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In her thesis, Shadi Azam studied the association between established breast cancer risk factors with mammographic density change over time and mammographic microcalcifications by using data from the prospective KARMA cohort.
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Causal inference is important in medical research to help determine if treatments are beneficial and if natural exposures are harmful. In many settings, data collection makes causal inference difficult without making overly optimistic or idealistic assumptions. In a new article published in the Journal of the American Statistical Association, researchers at Karolinska Institutet develop new statistical methods to make causal inference possible in some settings without making such assumptions.
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In his thesis, Emilio Ugalde Morales uses a molecular epidemiology approach to investigate the association between risk factors and aggressive breast cancer defined by tumor characteristics, intrinsic subtypes, mode of detection, and survival.
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At the moment we live in an era where it is easier to generate data than to interpret them. The focus of Zheng Ning’s thesis is on methodology and analysis to exploit novel biological knowledge from published results of genome-wide association study (GWAS).
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Evaluating the genetic correlations across our phenotypes is of essential importance for understanding disease etiology and other potential causality. The new method – published in the journal Nature Genetics – vastly improves our power in estimating genetic correlations using the huge established resources from genome-wide association studies.
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The focus of Isabella Ekheden's thesis is on gastric and esophageal cancer – gastroesophageal cancers - that are some of the most fatal malignancies in the world. Understanding the cause of these diseases is key to interventions such as primary prevention and/or surveillance with the potential of lowering the disease burden.
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The focus of Johanna Sieurin's thesis was to investigate the relationship of personality and stress with subsequent risk of Parkinson’s disease (PD).
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Researchers at Karolinska Institutet show that different measures of psychopathology can be combined into a single factor, “p”, which predicts the patient’s prognosis and need of extra support. The general factor of psychopathology reflects the overall risk of adverse psychiatric outcomes with an accuracy equal to that currently used for intelligence, they report in a paper published in World Psychiatry.
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The objective of Peter's thesis is to develop and improve technologies for prostate cancer diagnostics and to acquire knowledge related to these technologies that directly translate to clinical utility.
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In her thesis, Ninoa Malki concludes that socioeconomic differences are associated with both incidence and mortality of cardiovascular disease in Sweden.
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On Friday December 18, Elisa Longinetti will defend her thesis "Amyotrophic lateral sclerosis and multiple sclerosis associated neuroinflammation: nationwide epidemiological studies on etiology, comorbidities, and treatment"
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On Friday December 6, 2019 Cecilia Radkiewicz defended her thesis "Sex differences in cancer risk and survival".
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On Tuesday December 10, Gabriel Isheden will defend his thesis Statistical models of breast cancer tumour growth and spread".
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Those with a family history of schizophrenia and men with lower IQ are more likely to struggle with treatment resistant schizophrenia than others with the mental disorder, according to a study by researchers at Karolinska Institutet in Sweden published in the journal Molecular Psychiatry. The researchers say the findings could be important in efforts to design novel drug treatments that improve cognition.
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Title: The comorbidity between attention-deficit/hyperactivity disorder and other neurodevelopmental disorders: aetiology, treatment and outcomes
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Title: Socioeconomic influences on late-life health and mortality : exploring genetic and environmental interplay 
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Title: Risk prediction in prostate cancer diagnostics : current challenges and improvements
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A group of biostatistical scientists at the Department of Medical Epidemiology and Biostatistics (MEB) have been awarded a research environment grant of SEK 13 million from the Swedish Research Council for research into the development and application of statistical methods for register-based research.

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On Friday May 24 Elisabeth Dahlqwist will defend her thesis "Method developments for the attributable fraction in causal inference". Her opponent will be Professor Xavier de Luna from Handelshögskolan, Umeå universitet. Elisabeth's supervisors are Arvid Sjölander and Yudi Pawitan.
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