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Life Sciences
Results 41 - 60 of 978.
Tracking down leaks in the blood-brain barrier
Bonn researchers develop new method to study selective diffusion barrier In epilepsy research, it has long been assumed that a leaky blood-brain barrier is a cause of inflammation in the brain. Using a novel method, researchers from the University of Bonn an the Bonn University Hospital (UKB) have demonstrated that the barrier between the blood and the central nervous system remains largely intact.
Bonn researchers develop new method to study selective diffusion barrier In epilepsy research, it has long been assumed that a leaky blood-brain barrier is a cause of inflammation in the brain. Using a novel method, researchers from the University of Bonn an the Bonn University Hospital (UKB) have demonstrated that the barrier between the blood and the central nervous system remains largely intact.
Less is more
Scientists from Würzburg and Braunschweig have developed a new approach that enables more efficient processing of bacterial genomes . The ability to genetically modify bacteria is key to exploring the microbial world. Genome editing - the editing of genetic material such as DNA - is essential for developing new antibiotics and using bacteria as miniature factories for the sustainable production of chemicals, materials and therapeutics.
Scientists from Würzburg and Braunschweig have developed a new approach that enables more efficient processing of bacterial genomes . The ability to genetically modify bacteria is key to exploring the microbial world. Genome editing - the editing of genetic material such as DNA - is essential for developing new antibiotics and using bacteria as miniature factories for the sustainable production of chemicals, materials and therapeutics.
How could we evolve such a huge brain?
A new study, published in the journal Frontiers in Ecology and Evolution, investigated the foraging behaviour of children in a present-day forager society. Already from an early age, there was a gender-specific development of foraging skills. These new findings, combined with the high level of food sharing in forager societies, support the embodied capital theory, offering an explanation for the substantially larger brains in humans.
A new study, published in the journal Frontiers in Ecology and Evolution, investigated the foraging behaviour of children in a present-day forager society. Already from an early age, there was a gender-specific development of foraging skills. These new findings, combined with the high level of food sharing in forager societies, support the embodied capital theory, offering an explanation for the substantially larger brains in humans.
New compound inhibits influenza virus replication
Researchers from the University of Bonn: Derivative of a bacterial natural product blocks endogenous methyltransferase Viruses use the molecular repertoire of the host cell to replicate. Researchers from the Cluster of Excellence ImmunoSensation2 at the University of Bonn, together with Japanese researchers, want to exploit this for the treatment of influenza.
Researchers from the University of Bonn: Derivative of a bacterial natural product blocks endogenous methyltransferase Viruses use the molecular repertoire of the host cell to replicate. Researchers from the Cluster of Excellence ImmunoSensation2 at the University of Bonn, together with Japanese researchers, want to exploit this for the treatment of influenza.
Creating 3D objects with sound
Scientists assemble matter in 3D using sound waves for 3D printing Scientists from the Max Planck Institute for Medical Research and the Heidelberg University have created a new technology to assemble matter in 3D. Their concept uses multiple acoustic holograms to generate pressure fields with which solid particles, gel beads and even biological cells can be printed.
Scientists assemble matter in 3D using sound waves for 3D printing Scientists from the Max Planck Institute for Medical Research and the Heidelberg University have created a new technology to assemble matter in 3D. Their concept uses multiple acoustic holograms to generate pressure fields with which solid particles, gel beads and even biological cells can be printed.
Fish schools work a bit like the brain
The hypothesis that the brain's greatest performance potential lies at the boundary between order and chaos has been demonstrated by researchers from the "Science of Intelligence" Cluster of Excellence at the HU, the TU and the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) in a study on a huge school of fish What do the brain and a school of fish have in common? They are both capable of efficient collective information processing, although each unit within them only has access to local information.
The hypothesis that the brain's greatest performance potential lies at the boundary between order and chaos has been demonstrated by researchers from the "Science of Intelligence" Cluster of Excellence at the HU, the TU and the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) in a study on a huge school of fish What do the brain and a school of fish have in common? They are both capable of efficient collective information processing, although each unit within them only has access to local information.
Helpers in the Assembly of Cellular ’Protein Factories’
Ribosomes are the nanomachines of the cell whose task is the correct synthesis of proteins. Researchers at the Heidelberg University Biochemistry Center are studying the emergence of these "protein factories", also known as ribosomes. Led by Ed Hurt, they have decoded the special role of a heretofore unexplored biogenesis factor in the maturation of precursor ribosomes.
Ribosomes are the nanomachines of the cell whose task is the correct synthesis of proteins. Researchers at the Heidelberg University Biochemistry Center are studying the emergence of these "protein factories", also known as ribosomes. Led by Ed Hurt, they have decoded the special role of a heretofore unexplored biogenesis factor in the maturation of precursor ribosomes.
Protein droplets may cause many types of genetic disease
Malfunction of cellular condensates is a disease mechanism relevant for congenital malformations, common diseases, and cancer Most proteins localize to distinct protein-rich droplets in cells, also known as "cellular condensates". Such proteins contain sequence features that function as address labels, telling the protein which condensate to move into.
Malfunction of cellular condensates is a disease mechanism relevant for congenital malformations, common diseases, and cancer Most proteins localize to distinct protein-rich droplets in cells, also known as "cellular condensates". Such proteins contain sequence features that function as address labels, telling the protein which condensate to move into.
76 % of assessed insect species worldwide not adequately covered by protected areas
Insect numbers have been declining over the past decades in many parts of the world. Protected areas could safeguard threatened insects, but a team of researchers led by the German Centre for Integrative Biodiversity Research (iDiv), the Friedrich Schiller University Jena, the Helmholtz Centre for Environmental Research (UFZ), and the University of Queensland now found that 76 % of globally assessed insect species are not adequately covered by protected areas worldwide.
Insect numbers have been declining over the past decades in many parts of the world. Protected areas could safeguard threatened insects, but a team of researchers led by the German Centre for Integrative Biodiversity Research (iDiv), the Friedrich Schiller University Jena, the Helmholtz Centre for Environmental Research (UFZ), and the University of Queensland now found that 76 % of globally assessed insect species are not adequately covered by protected areas worldwide.
Local cacao varieties promise high biodiversity and fine flavours
Agroecologists from Göttingen University study their socio-ecological importance in South America In the western Amazon region, cacao has been cultivated since prehistoric times and the area is a valuable resource for genetic diversity of cacao plants. There is growing interest here in switching cultivation from high-yielding but mostly low-quality cacao to indigenous cacao varieties that produce chocolate with particularly fine flavours.
Agroecologists from Göttingen University study their socio-ecological importance in South America In the western Amazon region, cacao has been cultivated since prehistoric times and the area is a valuable resource for genetic diversity of cacao plants. There is growing interest here in switching cultivation from high-yielding but mostly low-quality cacao to indigenous cacao varieties that produce chocolate with particularly fine flavours.
Cancer research at TUM
World Cancer Day on February 4, 2023 How does cancer develop? How can we improve diagnoses and therapies? How can we prevent it from occurring in the first place? To answer these questions, TUM and its University Hospital rechts der Isar link the study of medicine with the natural sciences, life sciences, engineering and informatics.
World Cancer Day on February 4, 2023 How does cancer develop? How can we improve diagnoses and therapies? How can we prevent it from occurring in the first place? To answer these questions, TUM and its University Hospital rechts der Isar link the study of medicine with the natural sciences, life sciences, engineering and informatics.
The key to hearing development
In our inner ear, there are two different types of sensory cells that are responsible for hearing. An MHH research team has now identified the molecular switch for the formation of these inner and outer hair cells and thus found an important building block for the treatment of hearing loss. The inner and outer hair cells develop before birth from a common type of precursor cells.
In our inner ear, there are two different types of sensory cells that are responsible for hearing. An MHH research team has now identified the molecular switch for the formation of these inner and outer hair cells and thus found an important building block for the treatment of hearing loss. The inner and outer hair cells develop before birth from a common type of precursor cells.
Not just mood swings but premenstrual depression
Researchers find serotonin transporter in the brain increased Scientists led by Julia Sacher from Max Planck Institute for Human Cognitive and Brain Sciences and Osama Sabri from the Leipzig University Hospital have discovered in an elaborate patient study that the transport of the neurotransmitter serotonin in the brain increases in women with premenstrual dysphoric disorder (PMDD) shortly before menstruation.
Researchers find serotonin transporter in the brain increased Scientists led by Julia Sacher from Max Planck Institute for Human Cognitive and Brain Sciences and Osama Sabri from the Leipzig University Hospital have discovered in an elaborate patient study that the transport of the neurotransmitter serotonin in the brain increases in women with premenstrual dysphoric disorder (PMDD) shortly before menstruation.
Evolutionary Tuning of a Cellular ’Powerhouse’
Researchers in Freiburg and Bonn provide the first comprehensive mapping of the protein machineries in the mitochondria, the powerhouses of the cell Mitochondria are membrane-enclosed structures found in all cells of higher organisms, where they produce most of the necessary energy ("powerhouses of the cell").
Researchers in Freiburg and Bonn provide the first comprehensive mapping of the protein machineries in the mitochondria, the powerhouses of the cell Mitochondria are membrane-enclosed structures found in all cells of higher organisms, where they produce most of the necessary energy ("powerhouses of the cell").
Motile Sperm and Frequent Abortions in Spreading Earthmoss
Freiburg researchers discover that sperm motility and anchoring of the spore capsule in the spreading earthmoss Physcomitrella are influenced by the auxin transporter PINC. As a component of moors, mosses are important for climate conservation. They are also gaining increasing significance in biotechnology and the manufacture of biopharmaceuticals.
Freiburg researchers discover that sperm motility and anchoring of the spore capsule in the spreading earthmoss Physcomitrella are influenced by the auxin transporter PINC. As a component of moors, mosses are important for climate conservation. They are also gaining increasing significance in biotechnology and the manufacture of biopharmaceuticals.
The death of microorganisms affects the carbon content in the soil
Biologists at Freie Universität Berlin Publish Research Results in Nature Geoscience Even microorganisms are not immortal. And the way the tiny creatures die in the soil has an impact on the amount of carbon they leave behind, as microbiologist and ecologist Dr. Tessa Camenzind of Freie Universität Berlin, in collaboration with Johannes Lehmann of Cornell University, New York (USA) and Humboldt Research Award winner at Freie Universität Berlin, and other co-authors have now discovered.
Biologists at Freie Universität Berlin Publish Research Results in Nature Geoscience Even microorganisms are not immortal. And the way the tiny creatures die in the soil has an impact on the amount of carbon they leave behind, as microbiologist and ecologist Dr. Tessa Camenzind of Freie Universität Berlin, in collaboration with Johannes Lehmann of Cornell University, New York (USA) and Humboldt Research Award winner at Freie Universität Berlin, and other co-authors have now discovered.
Evolutionary tuning of a cellular ’power plant’
Researchers from Freiburg and Bonn succeed in the first comprehensive description of the protein machines in the mitochondria, the power plants of the cell. Mitochondria are membrane-enveloped structures found in all cells of higher organisms, where they produce most of the necessary energy ("power plants of the cell").
Researchers from Freiburg and Bonn succeed in the first comprehensive description of the protein machines in the mitochondria, the power plants of the cell. Mitochondria are membrane-enveloped structures found in all cells of higher organisms, where they produce most of the necessary energy ("power plants of the cell").
How Microbes Die Influences Soil Carbon Content
Biologists at Freie Universität Berlin publish research results in Nature Geoscience Even microorganisms do not live forever. However, the manner in which these tiny soil organisms die has an effect on the amount of carbon they leave behind. These are the latest results of a study carried out by microbiologist and ecologist Dr. Tessa Camenzind from Freie Universität Berlin, together with Humboldt Research Award winner Johannes Lehmann, visiting researcher at Freie Universität Berlin from Cornell University, New York (USA), and their colleagues.
Biologists at Freie Universität Berlin publish research results in Nature Geoscience Even microorganisms do not live forever. However, the manner in which these tiny soil organisms die has an effect on the amount of carbon they leave behind. These are the latest results of a study carried out by microbiologist and ecologist Dr. Tessa Camenzind from Freie Universität Berlin, together with Humboldt Research Award winner Johannes Lehmann, visiting researcher at Freie Universität Berlin from Cornell University, New York (USA), and their colleagues.
Cooperation between dolphins and humans
A study reveals how cooperative hunting between dolphins and fishers can benefit both species-and why this behavior faces extinction In the city of Laguna on Brazil's southern coast, dolphins and humans have been helping each other hunt for over a century. In the practice, traditional net-casting fishers wait in the lagoon for wild bottlenose dolphins to appear.
A study reveals how cooperative hunting between dolphins and fishers can benefit both species-and why this behavior faces extinction In the city of Laguna on Brazil's southern coast, dolphins and humans have been helping each other hunt for over a century. In the practice, traditional net-casting fishers wait in the lagoon for wild bottlenose dolphins to appear.
How evolution relies on different life cycles
An international team of researchers has succeeded in solving one of the riddles of evolution. The scientists investigated the question why the life cycles of animal species differ significantly from each other. Specifically, the question was why invertebrates in particular go through a larval stage during their individual development.
An international team of researchers has succeeded in solving one of the riddles of evolution. The scientists investigated the question why the life cycles of animal species differ significantly from each other. Specifically, the question was why invertebrates in particular go through a larval stage during their individual development.