Sound-frequency map for inner ear created with advanced X-ray technology
24 februari 2021
Researchers at Uppsala University have created the first 3D map of the hearing nerve showing where the various sound frequencies are captured. Using what is known as synchrotron X-ray imaging, they were able to trace the fine nerve threads and the vibrating auditory organ, the cochlea, and find out exactly how the frequencies of incoming sound are distributed. The study is published in Scientific Reports.
Beta blockers can repair malformed blood vessels in the brain
23 februari 2021
Propranolol, a drug that is efficacious against infantile haemangiomas (“strawberry naevi”, resembling birthmarks), can also be used to treat cerebral cavernous malformations, a condition characterised by misshapen blood vessels in the brain and elsewhere. This has been shown by researchers at Uppsala University in a new study published in the scientific journal Stroke.
Innate immune system worsens the situation in severe COVID-19
23 februari 2021
In patients with severe COVID-19, the innate immune system overreacts. This overreaction may underlie the formation of blood clots (thrombi) and deterioration in oxygen saturation that affect the patients. This is shown in an Uppsala University study published in the journal Frontiers in Immunology.
Multigenerational effects of environmental toxins
16 februari 2021
The effects of the endocrine disruptor linuron on frogs are not limited to those exposed, but are passed on to their offspring and grand-offspring. First generation offspring have reduced body weight and decreased fertility, while second generation offspring have increased body weight and a disrupted metabolism. This is demonstrated by a new study conducted by researchers at Uppsala University and Stockholm University that has now been publish...
Metabolic response behind reduced cancer cell growth
12 februari 2021
Researchers from Uppsala University show in a new study that inhibition of the protein EZH2 can reduce the growth of cancer cells in the blood cancer multiple myeloma. The reduction is caused by changes in the cancer cells’ metabolism. These changes can be used as markers to discriminate whether a patient would respond to treatment by EZH2 inhibition. The study has been published in the journal Cell Death & Disease.
Producing more sustainable hydrogen with composite polymer dots
12 februari 2021
Hydrogen for energy use can be extracted in an environmentally friendly way from water and sunlight, using photocatalytic composite polymer nanoparticles developed by researchers at Uppsala University. In laboratory tests, these “polymer dots” showed promising performance and stability alike. The study has been published in the Journal of the American Chemical Society.
New improved dog reference genome will aid a new generation of investigation
10 februari 2021
Researchers at Uppsala University and the Swedish University of Agricultural Sciences have used new methods for DNA sequencing and annotation to build a new, and more complete, dog reference genome. This tool will serve as the foundation for a new era of research, helping scientists to better understand the link between DNA and disease, in dogs and in their human friends. The research is presented in the journal Communications Biology.
- Higher blood pressure at night than in daytime may increase Alzheimer’s disease risk 08 februari 2021
New clues to how SARS-CoV-2 infects cells
08 februari 2021
peer review/experimental study
Stefania Barca the new visiting Zennström climate professor
08 februari 2021
Stefania Barca, from the University of Coimbra in Portugal, is to be Uppsala University’s fourth Zennström Professor of Climate Change Leadership. In her research, she focuses particularly on issues of justice connected with environmental and climate change.
Intensity not paramount for physical training during cancer therapy
03 februari 2021
People receiving treatment for cancer are known to feel better with physical training. But does it make any difference how vigorously they exercise? A new study by researchers at Uppsala University shows that whether the training is intensive or rather less strenuous, its effect is roughly the same. The results are published in the journal Scandinavian Journal of Medicine and Science in Sports.
Warmer climate may make new mutations more harmful
03 februari 2021
A warmer global climate can cause mutations to have more severe consequences for the health of organisms through their detrimental effect on protein function. This may have major repercussions on organisms’ ability to adapt to, and survive in, the altered habitats of the future. This is shown in a new Uppsala University research study now published in the scientific journal Proceedings of the Royal Society B.
Uppsala University Joins Wellcome Leap Global Network
29 januari 2021
Uppsala University has joined the Leap Health Breakthrough Network, a global group of 21 leading academic and research institutions, representing a network of over 150,000 researchers across six continents, committed to solving the world’s most serious health challenges — such as cancer and infectious diseases — at record speed. Wellcome Leap is a US-based non-profit organisation founded by the Wellcome Trust to accelerate innovations that ben...
Ions in molten salts can go “against the flow”
27 januari 2021
In a new article published in the scientific journal Communications Chemistry, a research group at Uppsala University show, using computer simulations, that ions do not always behave as expected. In their research on molten salts, they were able to see that, in some cases, the ions in the salt mixture they were studying affect one another so much that they may even move in the “wrong” direction – that is, towards an electrode with the same cha...
Tough childhood damages life prospects
21 januari 2021
An adverse upbringing often impairs people’s circumstances and health in their adult years, especially for couples who have both had similar experiences. This is shown by a new study, carried out by Uppsala University researchers, in which 818 mothers and their partners filled in a questionnaire one year after having a child together. The study is now published in the scientific journal PLOS ONE.
Natural hazard events and national risk reduction measures unconnected
20 januari 2021
Countries where massive natural hazard events occur frequently are not more likely than others to make changes to reduce risks from future disasters. This is shown in an interdisciplinary Uppsala University study now published in Nature Communications.
European eels – one gene pool fits all
20 januari 2021
European eels spawn in the subtropical Sargasso Sea but spend most of their adult life in a range of fresh- and brackish waters, across Europe and Northern Africa. How eels adapt to such diverse environments has long puzzled biologists. Using whole-genome analysis, a team of scientists led from Uppsala University provides conclusive evidence that all European eels belong to a single panmictic population irrespective of where they spend their a...
Disrupted immune cell navigation in lymph nodes of breast cancer patients
13 januari 2021
In breast cancer, tumours of different types have divergent effects on the functioning of the lymph nodes. In patients with invasive breast cancer, the blood vessels and supporting tissue of the lymph nodes change, but this does not occur in patients with a non-invasive form of breast cancer (ductal carcinoma in situ). This is shown in a new study from Uppsala University, now published online in the scientific journal Cancers.
Antibiotic resistance from random DNA sequences
08 januari 2021
An important and still unanswered question is how new genes that cause antibiotic resistance arise. In a new study, Swedish and American researchers have shown how new genes that produce resistance can arise from completely random DNA sequences. The results have been published in the journal PLOS Genetics.
Faulty metabolism of Parkinson’s medication in the brain linked to severe side effects
07 januari 2021
Until now, the reason why the drug levodopa (L-Dopa), which reduces the motor symptoms of Parkinson’s disease, declines in efficacy after a few years’ use has been unknown. A side effect that then often occur is involuntary movements. A Swedish–French collaboration, led from Uppsala University, has now been able to connect the problems with defective metabolism of L-Dopa in the brain. The study is published in Science Advances.
Parents’ finances differently affected by having a child diagnosed with cancer
04 januari 2021
Mothers and fathers of children diagnosed with cancer are affected financially in different ways. While mothers’ incomes fall in the short term and then rise, the adverse financial repercussions on fathers occur later. Researchers at Uppsala University have investigated the socioeconomic impact on parents of having a child diagnosed with cancer. The study is published in the International Journal of Cancer.
New Centre for Nuclear Disarmament for Uppsala University
22 december 2020
Today, the Swedish Government decided to assign to Uppsala University the task of setting up a new national knowledge centre for research on nuclear disarmament. With an interdisciplinary approach and researchers in fields including peace and conflict research, nuclear physics, artificial intelligence (AI) and political science, the incipient Alva Myrdal Centre will conduct research with the goal of contributing to a safer world for humankind.
Archives crucial for Freemasons’ identity
22 december 2020
The Order of Freemasons’ meticulous archives are fundamental to their identity. The unique structure of the masonic archives reinforces the secrecy and mystique of the self-image that has been fashioned by the Order — and characterises it in the eyes of others. This is shown in a recent thesis from Uppsala University, which focuses on the Masons’ archives in the 18th and 19th centuries.
Parlour games 400 years ago – almost like today
17 december 2020
In a new thesis from Uppsala University, art historian Greger Sundin studied 16th and 17th century games that have been preserved in princely collections for example. Right at the end of his work on the thesis, he and a colleague were able to solve an over 300 year old riddle about a game in the Augsburg Art Cabinet.
Oral contraceptive pills protect against ovarian and endometrial cancer
17 december 2020
A comprehensive study from Uppsala University, involving more than 250,000 women, shows that oral contraceptive use protects against ovarian and endometrial cancer. The protective effect remains for several decades after discontinuing the use. The study is published in the journal Cancer Research.
Genome sequencing paves the way for more sustainable herring fishery
15 december 2020
An international team of Swedish, Norwegian, Danish and Irish scientists has used whole genome sequencing to characterise 53 herring populations from the Atlantic Ocean and the Baltic Sea. They have developed genetic markers that make it possible to better monitor herring populations and avoid overfishing. The study is published in the journal eLife.
New analysis method for predicting the risks and effects of immunotherapy
11 december 2020
In a new study, researchers at Uppsala University have been able to show differences in how Rituximab, a monoclonal antibody drug, interacts with the blood of healthy individuals compared to patients with chronic lymphocytic leukaemia. This has awakened hopes that this analysis method could pave the way for important breakthroughs in immunotherapy research and treatment.
Diabetes in dogs may indicate elevated risk of type 2 diabetes in their owners
11 december 2020
Owners of a dog with diabetes are more likely to develop type 2 diabetes than owners of a dog without diabetes. No shared risk of diabetes could be detected for cat owners and their cats. These novel findings, from a register-based study conducted at Uppsala University in collaboration with three other universities, have now been published in The BMJ.
Promising treatment for premenstrual dysphoric disorder, PMDD
10 december 2020
The mental symptoms of premenstrual dysphoric disorder improve following treatment with a progesterone receptor modulator, as demonstrated by SciLifeLab researcher Erika Comasco and Professor Inger Sundström-Poromaa, Uppsala University. The mechanism of action of the study drug provides insights into the potential molecular mechanisms underlying this psychiatric disorder and its treatment.
Rare species of small cats inadequately protected
20 november 2020
The Indian subcontinent is a hotspot for wild felines. A new study headed by Uppsala University now shows that only 6–11 per cent of the areas where three rare cat species have their habitat are protected. Lack of knowledge about these species has been an obstacle to understanding their needs for reserves. The research is presented in the journal Scientific Reports.
New semiconductor coating may pave way for future green fuels
18 november 2020
Hydrogen gas and methanol for fuel cells or as raw materials for the chemicals industry, for example, could be produced more sustainably using sunlight, a new Uppsala University study shows. In this study, researchers have developed a new coating material for semiconductors that may create new opportunities to produce fuels in processes that combine direct sunlight with electricity. The study is published in Nature Communications.
240 mammals help us understand the human genome
11 november 2020
A large international consortium led by scientists at Uppsala University and the Broad Institute of MIT and Harvard has sequenced the genome of 130 mammals and analysed the data together with 110 existing genomes to allow scientist to identify which are the important positions in the DNA. This new information can help both research on disease mutations in humans and how best to preserve endangered species. The study is published in Nature.
Chronic stress causes genetic changes in chickens
10 november 2020
How can stress in animals be measured? Scientists from Uppsala University and elsewhere have now found that what are known as epigenetic biomarkers could be used to detect long-term exposure to stress in commercially raised chickens. This may, in time, lead to improved conditions in animal rearing. The study has been published in the journal Frontiers in Genetics.
Swedish, Finnish and Russian wolves closely related
10 november 2020
The Scandinavian wolf originally came from Finland and Russia, and unlike many other European wolf populations its genetic constitution is virtually free from dog admixture. In addition, individuals have migrated into and out of Scandinavia. These findings have emerged from new research at Uppsala University in which genetic material from more than 200 wolves was analysed. The study is published in the journal Evolutionary Applications.
Half a billion years old microfossils may yield new knowledge of animal origins
09 november 2020
When and how did the first animals appear? Science has long sought an answer. Uppsala University researchers and colleagues in Denmark have now jointly found, in Greenland, embryo-like microfossils up to 570 million years old, revealing that organisms of this type were dispersed throughout the world. The study is published in Communications Biology.
Venous origin of brain blood-vessel malformations
03 november 2020
In the condition known as cavernoma, lesions arise in a cluster of blood vessels in the brain, spinal cord or retina. Researchers from Uppsala University can now show, at molecular level, that these changes originate in vein cells. This new knowledge of the condition creates potential for developing better therapies for patients. The study has been published in the journal eLife.
Invisible fungi revealed by their genetic material
03 november 2020
How can new life forms that we cannot see be discovered? Using a novel method based on looking for DNA in soil samples, researchers at Uppsala University have revealed the existence of two hitherto unknown, but very common fungus species. They are thought to perform a key function in the ecosystem, but their exact role remains to be clarified. The study is published in the journal IMA Fungus.
New method shows great potential for the treatment of Alzheimer’s disease
02 november 2020
In Alzheimer’s disease, a protein (peptide) forms clumps in the brain and causes sufferers to lose their memory. In a recently published article, a research group at Uppsala University described a new treatment method that increases the body’s own degradation of the building blocks that lead to these protein clumps.
Large tides may have driven evolution of fish towards life on land
27 oktober 2020
Big tidal ranges some 400 million years ago may have initiated the evolution of bony fish and land vertebrates. This theory is now supported by researchers in the UK and at Uppsala University who, for the first time, have used established mathematical models to simulate tides on Earth during this period. The study has been published in Proceedings of the Royal Society A.
AI methods of analysing social networks find new cell types in tissue
19 oktober 2020
In situ sequencing enables gene activity inside body tissues to be depicted in microscope images. To facilitate interpretation of the vast quantities of information generated, Uppsala University researchers have now developed an entirely new method of image analysis. Based on algorithms used in artificial intelligence, the method was originally devised to enhance understanding of social networks. The researchers’ study is published in The FEB...
A tiny jaw from Greenland sheds light on the origin of complex teeth
13 oktober 2020
A team of scientists led from Uppsala University have described the earliest known example of dentary bone with two rows of cusps on molars and double-rooted teeth. The new findings offer insight into mammal tooth evolution, particularly the development of double-rooted teeth. The results are published in the scientific journal PNAS.
Nitric oxide a possible treatment for COVID-19
02 oktober 2020
Researchers at Uppsala University have found that an effective way of treating the coronavirus behind the 2003 SARS epidemic also works on the closely related SARS-CoV-2 virus, the culprit in the ongoing COVID-19 pandemic. The substance concerned is nitric oxide (NO), a compound with antiviral properties that is produced by the body itself. The study is published in the journal Redox Biology.
Atom-billiards with x-rays to look inside of molecules
29 september 2020
The photon’s ability to transfer momentum was used in a novel approach by scientists of the Max Born Institute, Uppsala University, and the European X-Ray Free-Electron Laser Facility to observe a fundamental process in the interaction of x-rays with atoms. The detailed experimental and theoretical results are reported in the journal Science.
New high-speed test shows how antibiotics combine to kill bacteria
17 september 2020
Researchers at Uppsala University have developed a new method to determine – rapidly, easily and cheaply – how effective two antibiotics combined can be in stopping bacterial growth. The new method is simple for laboratories to use and can provide greater scope for customising treatment of bacterial infections. The study is published in PLOS Biology.
BATTERY 2030+ – large-scale European initiative for battery research starts up
09 september 2020
The European research initiative BATTERY 2030+ is now getting going. The ambition is to make Europe a world-leader in the development and production of the batteries of the future. These batteries need to store more energy, have a longer life, and be safer and more environmentally friendly than today’s batteries in order to facilitate the transition to a more climate-neutral society. The project is led from Uppsala University.
Possible blood-clotting mechanism in COVID-19 found
02 september 2020
Why so many COVID-19 patients get blood clots (thrombosis) remains uncertain. But scientists at Uppsala University and the University Hospital have now identified a mechanism they believe to be implicated. A particular protein triggers a part of our immune system that can boost the blood’s tendency to coagulate and form clots. The study is now published in Thrombosis and Haemostasis.
Swedish workers among Europe’s best-paid in late 1800s
01 september 2020
In 19th-century Sweden, workers’ wages rose faster than in other European countries. By 1900, they were among the highest in Europe, and the steepest rise of all had been for those who earned least. This is shown by new research at Uppsala University: a study published in The Journal of Economic History.
Catching genes from chlamydiae allowed complex life to live without oxygen
26 augusti 2020
A team of international researchers has discovered a new group of Chlamydiae – named the Anoxychlamydiales – living under the ocean floor without oxygen. These Chlamydiae have genes that allow them to survive without oxygen while making hydrogen gas. The researchers found that our single-cell ancestors ‘caught’ these hydrogen-producing genes from ancient Chlamydiae up to two-billion years ago – an event that was critical for the evolution of ...
New findings on enzymes with important role in SARS-CoV-2 infection
04 augusti 2020
Researchers at Uppsala University have described the presence, throughout the human body, of the enzyme ACE2. This is thought to be the key protein used by the SARS-CoV-2 virus for host cell entry and development of the disease COVID-19. In contrast to previous studies, the study shows that no or very little ACE2 protein is present in the normal respiratory system. The results are presented in Molecular Systems Biology.
New research on metallic nanoparticles may lead to improved solar cells
27 juli 2020
In a new study, a research group at Uppsala University explain their outstanding success in harvesting “hot electron holes”. The results of their work can be used to improve solar cells, photochemical reactions and photosensors. The scientific article is published in Nature Materials.