News archive

The Consortium Global IBD Visualization of Epidemiology Studies in the 21st Century (GIVES-21) now publish data on the global prevalence of inflammatory bowel disease (IBD) in Nature. Researchers from Karolinska Institutet have contributed to the study. While the number of people with incident IBD is relatively constant in Sweden, the prevalence is increasing and 1 per cent of the Swedish population is now estimated to have IBD.

Researchers at Karolinska Institutet have identified biomarkers in the blood associated with symptoms of long COVID, particularly severe respiratory disorders. The discovery can pave the way for future diagnosis and treatment. The results are published in the scientific journal Nature Immunology.

On May 1 and May 2 the KI Housing office will be closed for the celebration of Walpurgis Eve and May Day. In Sweden, Walpurgis is celebrated with a big fire to welcome the spring.

Researchers at Karolinska Institutet have developed a technique that enables efficient delivery of therapeutic proteins and RNA to cells. The method, presented in Nature Communications, shows promising results in animal studies to deliver gene editors and protein therapeutics.

A higher tax on cigarettes in low and middle-income countries can help to reduce child mortality, especially amongst the poorest children, a new study led by researchers at Karolinska Institutet and published in The Lancet Public Health suggests.

Researchers at Karolinska Institutet and Uppsala University have developed a powerful new technique to better understand how tiny molecules in our cells, called microRNAs, control which genes are turned on or off — a discovery that could improve how we study diseases from cancer to neurodevelopmental disorders.

Researchers at Karolinska Institutet have identified a new mechanism where circular RNA plays a crucial role in wound healing, which could lead to new therapies to improve wound healing and reduce scarring. The study was published in Advanced Science.

Robin Juthberg, PhD student at the Orthopaedic research group, the Department of Molecular Medicine and Surgery, will defend his thesis "Advancing neuromuscular electrical stimulation optimizing comfort and hemodynamic efficiency" on May 16th 2025. Main Supervisor is Paul Ackermann.

A newly published study involving researchers from Karolinska Institutet indicates that prostate cancer can be diagnosed at an early stage through a simple urine sample. With the aid of AI and extensive analyses of gene activity in tumours, they have identified new biomarkers of high diagnostic precision.

Researchers at Karolinska Institutet have uncovered a unique ability of a special subtype of natural killer cells in the immune system, called adaptive NK cells, to remember ovarian tumours and effectively attack them. The discovery, published in Cancer Immunology Research, could pave the way for new, more powerful immunotherapies for difficult-to-treat cancers.

A study from the Institute of environmental Medicine (IMM) at Karolinska Institutet shows that the chemical di(2-ethylhexyl) phthalate (DEHP), which is found in many plastic products, has clear negative effects on hormones and fertility endpoints relevant to female fertility.

They are among the first in Sweden to be vaccinated against the chikungunya virus - a vaccine that is the result of a discovery from their own laboratory.

Welcome to Suganthi Jaganathan´s defense of the thesis ”Applying novel methods to study long-term exposure to air pollution and temperature and annual mortality in India” on May 6th.

Congratulations to Mikael Rydén, the first Swede to be awarded the Camillo Golgi Prize.

Professor Jonas F Ludvigsson at the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, and Örebro University Hospital has been awarded the Solstickepriset 2025.

KI Professor Anna Mia Ekström joins the KIB podcast in a conversation about the Face of AIDS Film Archive, the unique film archive documenting the global HIV epidemic 1986-2021. We talk about the importance of the current political landscape in the fight against HIV and AIDS, the results achieved in terms of treatment and the very real risk that these results will be reversed. We talk about the role of documentation and activism: ‘We don't see that today [...] and we know that silence kills.'

The final day to register for the Swedish Suicide Research Conference is rapidly approaching. To secure your spot, please complete your registration by April 28.

The application period for this autumn’s national programmes and courses expired on 15 April. The number of applications to KI’s study programmes increased by 10 per cent compared to last year, with the Speech and Language Pathology Programme seeing the sharpest rise.

A law to quickly limit the spread of infection in the event of a pandemic and research efforts to strengthen Sweden's pandemic preparedness and close knowledge gaps in the event of new outbreaks. This was included in the interim report from the Inquiry on Strengthening Future Infection Control, which KI Professor Jan Albert submitted to the government yesterday.

The report 'Antalet demenssjuka och kostnader för demenssjukdomar i Sverige 2023', commissioned by the Ministry of Health and Social Affairs last autumn, was recently presented to Anna Tenje, Minister for Older People and Social Security. KI researchers Anders Wimo and Amaia Calderón-Larrañaga have been primarily responsible for the report, which shows a forecast with a great increase for the number of people with dementia by 2050 and for the heavy financial responsibility of municipalities.

Ahead of this year's program start of IMM's global master's program in toxicology, the number of applicants has increased significantly.

Anna-Stina Malmborg, former docent of clinical microbiology at Karolinska Institutet and consultant and director of clinical bacteriology at Karolinska University Hospital for 17 years, has passed away at the age of 95. She and her husband Gunnar Höglund (1931–2019) set up the foundation that finances the Karolinska Institutet Prize for Research in Medical Education (KIPRIME).

The Swedish Childhood Cancer Fund (Barncancerfonden) has decided to grant funding for paediatric oncology research over the next one to six years. Diagnoses in focus include brain tumours and leukaemia, the most common childhood cancer diagnoses. Together, 29 researchers will share SEK 64 million. Seven of these researchers work at KI.

Despite the widespread use of pain rating scales in neonatal care worldwide, a new Cochrane review shows that current tools for assessing pain in newborns are based on very low quality evidence. According to the review, none of the pain rating scales in use today are methodologically reliable enough to measure pain.

Daniel Helldén, researcher at the Department of Global Public Health at Karolinska Institutet, is on the Forbes' 30 under 30 Europe 2025 list in the Science & Healthcare category.

From April 15.00 April 17, to April 21, the KI Housing office will be closed for the celebration of the Easter holidays.

On 26–27 March, Sweden hosted its first national meeting on extracellular vesicles (EVs) in Stockholm supported by KI Network and Conference Funding. The event gathered 171 researchers, young scientists, and industry experts from across the country — and beyond — to share the latest discoveries in this fast-growing field.

The government is funding Genomic Medicine Sweden (GMS) with SEK 80 million in 2025. The special support will be used, among other things, for continued investments in the sustainable development and implementation of precision medicine in cancer care. Richard Rosenquist Brandell, professor at KI and director of GMS, describes the initiative as an important investment in the future of healthcare.

The Ministry of Social Affairs has decided to allocate 4.9 million SEK to the innovation project BrAInChild, as part of the larger initiative within Genomic Medicine Sweden (GMS). BrAInChild aims to develop and implement advanced precision diagnostics for children with cancer, potentially leading to more individualized and effective treatments.

The Workshop on Genome Editing Tool Developments and Clinical Applications (#HKCRISPR25) was successfully held at the Hong Kong Science Park in April 2025.

People with a certain heart valve abnormality are at increased risk of severe heart rhythm disorders, even after successful valve surgery. This is according to a new study from Karolinska Institutet and Karolinska University Hospital in Sweden published in the European Heart Journal. The condition is more common in women and younger patients with valve disorder and can, in the worst case, lead to sudden cardiac arrest.

Lindsay Davies, an researcher at Karolinska Institutet, has been elected Incoming Vice Chair for Europe within the International Society for Cell & Gene Therapy (ISCT), a global organization that brings together scientists, clinicians, regulators, and industry partners in the rapidly growing field of advanced therapies.

In a recently published article in the journal Nature Communications, researchers at Karolinska Institutet present results indicating that repeated treatment with piperaquine, an antimalarial drug, can lead to parasites developing decreased sensitivity to this drug. These findings may impact the use of piperaquine in the future.

International experts highlight the research of Jon Lundberg, Eddie Weizberg, Mattias Carlström and their colleagues on nitrate and nitric oxide (NO) as particularly important when evaluating research at Swedish universities.

A new study from Karolinska Institutet shows how a small antibody fragment can block fertilisation by targeting a key protein on the surface of the egg. This discovery brings a non-hormonal contraceptive one step closer to reality. The study has been published in the journal PNAS.

On March 1st, Kristina Aspvall took over as the new Director of Research school for clinicians in psychiatry.

The 5th edition of the World Health Organization (WHO) Classification of Endocrine and Neuroendocrine Tumors has now been officially published in print. This highly anticipated reference work is widely regarded as the global gold standard for tumor diagnosis, offering a comprehensive synthesis of traditional histopathology with cutting-edge digital and molecular pathology.

Peter Strang, professor emeritus of palliative medicine at the Department of Oncology-Pathology at Karolinska Institutet, has been ranked as number 19 in his research field by Scholar GPS 2024. Scholar GPS is a global platform that analyzes and ranks researchers based on their academic productivity, impact, and quality.

A new study in Life Science Alliance reveals a key genetic connection between cancer susceptibility and tissue regeneration. Researchers at Karolinska Institutet identified a super-enhancer region upstream of the MYC gene essential for tumor development and tissue repair.

The Andersson Lab at the Department of Cell and Molecular Biology, Karolinska Institutet has been awarded a grant of DKK 3,990,001 over three years by the LEO Foundation for their project, “Unraveling Skin Origins: Developing In Utero Gene Manipulation Tools to Decipher Ectoderm and Mesoderm Contributions to Skin Health and Disease.”

Older individuals who struggle to chew hard food have a higher risk of becoming malnourished or experiencing significant weight loss over time. This is shown in a new Swedish population-based study by researchers at Karolinska Institutet, who followed more than 1,500 individuals for over six years. The study is published in The Journal of Nutrition, Health and Aging.

Dr. Karolina Borankova, a member of Professor Nils-Göran Larsson's group at the Department of Medical Biochemistry and Biophysics at Karolinska Institutet, has been awarded the prestigious Postdoctoral Fellowship from Cancerfonden. The project aims to investigate whether mitochondrial DNA mutations that affect mitochondrial function, impact lung cancer growth and tumor burden.

The Swedish Research Council has published its report "Quality and impact of research in basic medicine in Sweden", which evaluates the scientific quality and societal impact of medical research at seven universities. Karolinska Institutet is a leader among Swedish higher education institutions.

A four-year grant from the Bergling Foundation will provide support to Karolinska Institutet’s digital training initiative to help medical students be better at identifying and responding to suicidal children and young adults. The aim of the project is to give prospective doctors the tools they need to deal with young people in the risk zone.

The Swedish National Patient Register (NPR) has long been a cornerstone for epidemiological research. Researchers at Karolinska Institutet have published a new review examining the validity of the register and found that it is good for most diagnoses and very good for surgical procedures.

Researchers at Karolinska Institutet have identified the guinea pig as a promising model for studying the early development of human embryos. A new study shows that guinea pig embryos share many important characteristics with human embryos, which could open up new research opportunities in fertility and stem cell biology.

A new study from the Institute of Environmental Medicine, Karolinska Institutet reveals that days with both high air pollution and extreme heat substantially raise the risk of death in Indian cities more than either factor alone.

In 2025, five Wallenberg Clinical Scholars have been granted an extended grant for another five years. Among these is KI researcher Olle Kämpe, who will thus receive support for a total of ten years for his research into the causes of autoimmune diseases.

A groundbreaking national initiative, Precision Omics Initiative Sweden (PROMISE), aims to connect research with healthcare and establish Sweden as a world leader in data-driven precision medicine. The vision was recently published in the scientific journal Nature Medicine.

Researchers at Karolinska Institutet have developed a method that shows how the nervous system and sensory organs are formed in an embryo. By labelling stem cells with a genetic ‘barcode’, they have been able to follow the cells’ developmental journey and discover how the inner ear is formed in mice. The discovery, published in Science, could provide important insights for future treatment of hearing loss.