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Here's What It's Like to Be the Planetary Protection Officer at NASA
SPACE.COM John Rummel, a biology professor at East Carolina University, reflects on his experiences as NASA's planetary protection officer, a job that requires a lot... 15 hours
Study provides insight into development of red blood cells
NEWS MEDICAL Every cell in the body, whether skin or muscle or brain, starts out as a generic cell that acquires its unique characteristics after undergoing a process of specialization. Nowhere is... 1 day
Eggshell-like mineral layer on avian flu viruses may be cause for human infections
NEWS MEDICAL Avian flu can be transmitted from birds to humans; transmission among humans, however, is limited. The reason may be an eggshell-like mineral... 1 day
Science News » Scientists give star treatment to lesser-known cells crucial for brain development
NIMH Star-shaped support brain cells, astrocytes, growing in 3-D “organoids” in a dish develop similarly as those in human brain tissue. 1 day
Zika virus activates de novo and cross-reactive memory B cell responses in dengue-experienced donors
Science Magazine Zika virus (ZIKV) shares a high degree of homology with dengue virus (DENV), suggesting that preexisting immunity to DENV could... 1 day
Research identifies new gene fusions and mutations linked to GIST tumors
NEWS MEDICAL Researchers at UC San Diego Moores Cancer Center, with colleagues from Memorial Sloan Kettering Cancer Center and Fox Chase Cancer Center, have determined that a specific... 1 day
Two-step process leads to cell immortalization and cancer
SCIENCE DAILY Immortalization of cells is a necessary step in the development of cancer, and scientists think that the main cause is turning on an enzyme -- telomerase -- that lengthens chromosomal telomeres and... 1 day
Viruses and aphids that help crops? Scientists think it may be possible
SCIENCE DAILY Scientists are making an effort to help corn stand up to stress brought on by drought and disease by using viruses and aphids to... 1 day
Neurons involved in learning, memory preservation less stable, more flexible than once thought
SCIENCE DAILY The human brain has a region of cells responsible for linking sensory cues to actions and behaviors and cataloging the link as... 1 day
Spider silk protein may be useful for engineering artificial cardiac tissue
SCIENCE DAILY Ever more people are suffering from cardiac insufficiency. The main cause of reduced cardiac functionality lies in the irreversible loss of cardiac muscle cells due to... 1 day
Gene variant activity is surprisingly variable between tissues
SCIENCE DAILY Every tissue has its own pattern of active alleles, a large-scale study has found. Researchers were able to show that the differential allele activity is regulated by tissue-specific, regulatory DNA elements known... 1 day
How immature cells grow up to be red blood cells
SCIENCE DAILY Researchers have identified the mechanism behind red blood cell specialization and revealed that it is controlled by an enzyme called UBE2O. This finding could spark the development of... 1 day
Histone 1, the guardian of genome stability
SCIENCE DAILY Genomic instability is the main risk factor for tumor development in humans. Therefore understanding its origin and and exploring therapeutic targets is paramount. Histone 1 silences a region of the genome that causes irreparable... 1 day
Mitochondria: A map of the cell's powerhouse
SCIENCE DAILY Researchers are mapping the distribution of all proteins in mitochondria for the first time. 1 day
Organ crosstalk: Fatty liver can cause damage to other organs
SCIENCE DAILY Scientists have discovered that a fatty liver can cause damage to other organs. They demonstrate the effects of fatty liver disease on the function of the hormone-producing islet... 1 day
How whip-like cell appendages promote bodily fluid flow
SCIENCE DAILY Researchers have revealed that a molecule called Daple is essential for the correct orientation and coordinated beating of cilia on the surface of cells lining ventricles in the brain. Without Daple, the... 1 day
The power of perovskite
SCIENCE DAILY Researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications. 1 day
Cheesemaking secret unlocked
SCIENCE DAILY Researchers say their new knowledge on the inner workings of a bacterium has important implications for Australia's billion dollar cheese industry. The research group has explained the regulation of an enzyme in the bacterium Lactococcus, which is used as a... 1 day
Mechanisms explaining positional diversity of the hindlimb in tetrapod evolution
SCIENCE DAILY Elucidating how body parts in their earliest recognizable form are assembled in tetrapods during development is essential for understanding the nature of morphological evolution. Researchers found in eight... 1 day
Mineral layer around avian flu pathogen may be the cause for human infections
SCIENCE DAILY Avian flu can be transmitted from birds to humans; transmission among humans, however, is limited. The reason may be an eggshell-like mineral... 1 day
Vitamin C may encourage blood cancer stem cells to die
SCIENCE DAILY Vitamin C may 'tell' faulty stem cells in the bone marrow to mature and die normally, instead of multiplying to cause blood cancers. 1 day
First successful wild whale shark health assessments performed
SCIENCE DAILY For the first time ever, scientists successfully performed health assessments, including collecting blood and biological samples, taking measurements and attaching satellite tracking tags, to a population of wild whale sharks -- the... 2 days
Researchers identify molecule that enables cell appendages to drive bodily fluid flow
NEWS MEDICAL Researchers at Nagoya University have identified a molecule that enables cell appendages called cilia to beat in a coordinated way to drive the flow... 2 days
how we inherit masculine and feminine behaviours a new idea about environment and genes How we inherit masculine and feminine behaviours: a new idea about environment and genes
PHYS.ORG VIDEO The now infamous Google memo, written by engineer James Damore, has inflamed longstanding debates about the differences between women and... 2 days
The power of perovskite
PHYS.ORG OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications. 2 days
Genome analysis with near-complete privacy possible, say researchers
SCIENCE DAILY It is now possible to scour complete human genomes for the presence of disease-associated genes without revealing any genetic information not directly associated with the inquiry, say researchers. 2 days
Exclusive: Inside The Lab Where Scientists Are Editing DNA In Human Embryos
NPR NPR gets exclusive access to a lab in Portland, Ore., where scientists have begun editing the DNA in human embryos to try to prevent... 2 days
Super-photostable fluorescent labeling agent for super-resolution microscopy
PHYS.ORG Chemists at ITbM, Nagoya University have developed a super-photostable fluorescent dye called PhoxBright 430 (PB430) to visualize cellular ultra-structure by super-resolution microscopy. The exceptional photostability of this new dye enables continuous STED imaging. With... 2 days
A First Look: Inside The Lab Where Scientists Are Editing DNA In Human Embryos
NPR NPR gets exclusive access to a lab in Portland, Ore., where scientists have begun editing the DNA in human embryos... 2 days
Climate change and habitat conversion combine to homogenize nature
PHYS.ORG Climate change and habitat conversion to agriculture are working together to homogenize nature, indicates a study in the journal Global Change Biology led by the University of California, Davis. 2 days
Scientists reveal differences between human and murine microglia used in degenerative disease research
NEWS MEDICAL The results of a new research showed that many of the genes that are expressed by microglia are different between humans and... 2 days
FDA approves Besponsa – Pfizer’s new drug for rare form of acute lymphoblastic leukemia
NEWS MEDICAL The U.S. Food and Drug Administration (FDA) today approved Besponsa (inotuzumab ozogamicin) in the treatment of adults with relapsed or... 2 days
Worm atlas profiles gene readouts in every cell type in the animal
SCIENCE DAILY A worm atlas has been built that profiles gene readouts for every kind of cell in the animal. This is the first time this... 2 days
Antibiotics found to weaken body's ability to fight off disease
SCIENCE DAILY Adding another reason for doctors to avoid the overuse of antibiotics, new research shows that a reduction in the variety of microbes in the gut interferes with the... 2 days
Disrupted gut microbiome makes children more susceptible to amoebic dysentery
SCIENCE DAILY Children with lower diversity of microbial species in their intestines are more susceptible to severe infection with the Entamoeba histolytica parasite, according to a new study. 2 days
Slowing dangerous bacteria may be more effective than killing them
SCIENCE DAILY A new study suggests it may be possible to slow dangerous infections by manipulating the messages microbes send to one another, allowing the body to defeat an infection... 2 days
Super-photostable fluorescent labeling agent for super-resolution microscopy
SCIENCE DAILY Chemists have developed a super-photostable fluorescent dye, PhoxBright 430 (PB430), to visualize cellular ultrastructure by super resolution microscopy. The exceptional photostability of this new dye enables continuous STED imaging and together with its ability... 2 days
New gene catalog of ocean microbiome reveals surprises
SCIENCE DAILY Oceanographers report completing the largest single-site microbiome gene catalog constructed to date. With this new information, the team discovered nutrient limitation is a central driver in the evolution of ocean microbe genomes. 2 days
Bacteria stab amoebae with micro-daggers
SCIENCE DAILY Researchers have discovered a type of bacteria that uses tiny daggers to prevent itself from being eaten by amoebae. The scientists also resolved the three-dimensional structure of the mechanism that allows the micro-daggers to be shot quickly. 2 days
FDA approval provides new, targeted treatment option for adults with relapsed or refractory B-cell ALL
NEWS MEDICAL The U.S. Food and Drug Administration today approved Besponsa (inotuzumab ozogamicin) for the treatment of adults with relapsed... 2 days
Abnormal eating schedules affect skin’s protection from harmful UV rays of the sun
NEWS MEDICAL Sunbathers may want to avoid midnight snacks before catching some rays. A study in mice from the O'Donnell Brain Institute and UC Irvine shows... 2 days
Antibiotic use makes immune cells less effective in fighting infections
NEWS MEDICAL Adding another reason for doctors to avoid the overuse of antibiotics, new research shows that a reduction in the variety of microbes in the gut interferes with the... 2 days
New gene catalog of ocean microbiome reveals surprises
PHYS.ORG Microbes dominate the planet, especially the ocean, and help support the entire marine food web. In a recent report published in Nature Microbiology, University of Hawai'i at Mānoa (UHM) oceanography professor Ed... 2 days
'Switch' turns on immune cells' tumor-killing ability
SCIENCE DAILY Molecular biologists report for the first time how a microRNA molecule known as Lethal-7 (let-7) serves as a molecular control hub to direct the function of cytotoxic T lymphocytes by putting the brakes on... 2 days
Gene that makes large, plump tomatoes identified
SCIENCE DAILY Farmers can grow big, juicy tomatoes thanks to a mutation in the cell size regulator gene that occurred during the tomato domestication process. 2 days
Evolutionary history of imperiled salmon stocks
SCIENCE DAILY New technologies for analyzing DNA may transform how imperiled species are considered and managed for conservation protection, according to a study. These technologies can be applied to a wide range of species around the world --... 2 days
Disrupted gut microbiome makes children more susceptible to amoebic dysentery
MNT Children with lower diversity of microbial species in their intestines are more susceptible to severe infection with the Entamoeba histolytica parasite, according to a new study published in... 2 days
New Pathology Atlas maps genes in cancer to accelerate progress in personalized medicine
SCIENCE DAILY A new Pathology Atlas is launched today with an analysis of all human genes in all major cancers showing the consequence of... 2 days
When will yellow fever strike Brazil again? Monkeys and mosquitoes hold clues
Science Magazine Researchers track an elusive virus in the rainforest 2 days
DNA replication-coupled histone modification maintains Polycomb gene silencing in plants
Science Magazine Propagation of patterns of gene expression through the cell cycle requires prompt restoration of epigenetic marks after the twofold dilution caused by DNA replication. Here, we show that... 2 days
Fertile offspring from sterile sex chromosome trisomic mice
Science Magazine Having the correct number of chromosomes is vital for normal development and health. Sex chromosome trisomy (SCT) affects 0.1% of the human population and is associated with infertility. We show that during... 2 days
Mutations in the promoter of the telomerase gene TERT contribute to tumorigenesis by a two-step mechanism
Science Magazine TERT promoter mutations (TPMs) are the most common non-coding mutations in cancer. The timing and consequences... 2 days
Distinct phases of Polycomb silencing to hold epigenetic memory of cold in Arabidopsis
Science Magazine Gene silencing by Polycomb complexes is central to eukaryotic development. Cold-induced epigenetic repression of FLOWERING LOCUS C (FLC) in the plant Arabidopsis... 2 days
Sequencing each cell of the nematode
Science Magazine 2 days
How microbes survive in the open ocean
Science Magazine 2 days
Comprehensive single-cell transcriptional profiling of a multicellular organism
Science Magazine To resolve cellular heterogeneity, we developed a combinatorial indexing strategy to profile the transcriptomes of single cells or nuclei, termed sci-RNA-seq (single-cell combinatorial indexing RNA sequencing). We applied sci-RNA-seq to profile nearly... 2 days
A spin-valve solar cell
Science Magazine 2 days
A pathology atlas of the human cancer transcriptome
Science Magazine Cancer is one of the leading causes of death, and there is great interest in understanding the underlying molecular mechanisms involved in the pathogenesis and progression of individual tumors. We used systems-level... 2 days
Deriving genomic diagnoses without revealing patient genomes
Science Magazine Patient genomes are interpretable only in the context of other genomes; however, genome sharing enables discrimination. Thousands of monogenic diseases have yielded definitive genomic diagnoses and potential gene therapy targets. Here we show how... 2 days
In situ architecture, function, and evolution of a contractile injection system
Science Magazine Contractile injection systems mediate bacterial cell-cell interactions by a bacteriophage tail–like structure. In contrast to extracellular systems, the type 6 secretion system (T6SS) is defined by... 2 days
Vinculin forms a directionally asymmetric catch bond with F-actin
Science Magazine Vinculin is an actin-binding protein thought to reinforce cell-cell and cell-matrix adhesions. However, how mechanical load affects the vinculin–F-actin bond is unclear. Using a single-molecule optical trap assay, we found... 2 days
Slippery liquid surfaces confuse mussels
PHYS.ORG It all began with a bet at a conference in Italy in 2013. Nicolas Vogel, Ph.D., then a postdoctoral fellow in Joanna Aizenberg's lab at the Wyss Institute for Biologically Inspired Engineering at Harvard University and Harvard's John... 2 days
Researchers describe gene that makes large, plump tomatoes
PHYS.ORG Farmers can grow big, juicy tomatoes thanks to a mutation in the Cell Size Regulator gene that occurred during the tomato domestication process. Esther van der Knaap of the University of Georgia,... 2 days
Early Indian Ocean trade routes bring chicken, black rat to eastern Africa
PHYS.ORG The earliest introduction of domestic chickens and black rats from Asia to the east coast of Africa came via maritime routes between the 7th... 2 days
Bacteria stab amoebae with micro-daggers
PHYS.ORG Bacteria have to watch out for amoeba. Hungry amoebae hunt them: they catch them with their pseudopodia and then absorb and digest them. 2 days
Worm atlas profiles gene readouts in every cell type in the animal
PHYS.ORG The roundworm stars in the first-ever compilation of gene readouts in every kind of cell in an animal. The readouts, which were taken at... 2 days
Peroxisomes identified as 'fighters' in the battle against bacterial infections
SCIENCE DAILY Peroxisomes are required for cells in the innate immune response to bacteria and fungi. Now scientists have found that peroxisomes are necessary for proper functioning of the innate... 2 days
Scientists develop novel immunotherapy technology for prostate cancer
SCIENCE DAILY A novel immunotherapeutic strategy for the treatment of cancer based on the use of synthetic DNA to directly encode protective antibodies against a cancer-specific protein has been described in a new article. 2 days
Research provides clues to how infectious bacteria may increase risk of cancer
NEWS MEDICAL Gastric carcinoma is one of the most common causes of cancer-related deaths, primarily because most patients present at an advanced stage of the disease. 2 days
Medical News Today: Vitamin C may stop leukemia from progressing
MNT New research finds that high-dose vitamin C can genetically 'reprogram' leukemic cells to mature and die normally, instead of replicating to cause cancer. 2 days
Lab tests show molecule appears to spur cell death in tumors, inflammation
PHYS.ORG A drug-like molecule developed by Duke Health researchers appears to intercede in an inflammatory response that is at the center of a variety of... 2 days
Cell cycle-blocking drugs can shrink tumors by enlisting immune system in attack on cancer
SCIENCE DAILY A new study explains why CDK4/6 inhibitors can shrink tumor in some advanced breast cancers. CDK4/6 inhibitors trigger the immune... 2 days
Researchers identify role of blood-filtering organs in fighting against viral infections
NEWS MEDICAL New information about how and where the innate immune system fights off viral infections that enter through the skin could lead to better treatments for viruses... 2 days
Reed warblers have a sense for magnetic declination
PHYS.ORG Researchers recently showed that migratory reed warblers depend on an internal geomagnetic map to guide them on their long-distance journeys. But it wasn't clear how the birds were solving the relatively difficult... 2 days
Hemorrhagic fevers: Countering inflammation to prevent circulatory failure
PHYS.ORG Hemorrhagic fevers are severe viral diseases that are often fatal. Researchers from the University of Basel have now identified messenger substances of the immune system, which in infected mice lead to the... 2 days
First successful wild whale shark health assessments performed
PHYS.ORG For the first time ever, scientists successfully performed health assessments, including collecting blood and biological samples, taking measurements and attaching satellite tracking tags, to a population of wild whale sharks - the... 2 days
Slowing dangerous bacteria may be more effective than killing them, researchers report
PHYS.ORG Researchers at the University of Illinois have discovered a mechanism that allows bacteria of the same species to communicate when their survival is threatened.... 2 days
How the genome sets its functional micro-architecture
PHYS.ORG The genes that are involved in the development of the fetus are activated in different tissues and at different times. Their expression is carefully regulated by so-called "enhancer sequences", which are often located far... 2 days
Turkey bones may help trace fate of ancient cliff dwellers
PHYS.ORG Researchers say they have found a new clue into the mysterious exodus of ancient cliff-dwelling people from the Mesa Verde area of Colorado more than 700 years ago:... 2 days
Scientists compare soil microbes in no-till, conventional tilling systems of Pacific Northwest farms
PHYS.ORG In recent decades, growers have increasingly been adopting no-till farming to reduce soil erosion and decrease fuel, labor, and inputs. 2 days
Can previous exposure to West Nile alter the course of Zika?
SCIENCE DAILY West Nile virus is no stranger to the U.S.-Mexico border; thousands of people in the region have contracted the mosquito-borne virus in the past. But could... 2 days
Probiotics can prevent sepsis in infants, study shows
SCIENCE DAILY A special mixture of good bacteria in the body reduced the incidence of sepsis in infants in India by 40 percent at a cost of only $1 per infant, new research has... 2 days
Are stem cells the link between bacteria and cancer?
SCIENCE DAILY A new mechanism of stomach gland regeneration reveals impact of Helicobacter pylori infection. 2 days
How the genome sets its functional micro-architecture
SCIENCE DAILY Scientists now show how DNA is organized into specific regions, and that this depends on a combination of genomic distance and the presence of the CTCF protein. 2 days
Researchers explore if deep-sea sponges could be new source of potential antimicrobials
NEWS MEDICAL Marine sponges and the deep-sea ecosystem are comparatively under-studied and under-exploited compared with life in shallower waters - but a team of scientists from the University... 3 days
Sharp X-ray pulses from the atomic nucleus
PHYS.ORG X-rays make the invisible visible: they permit the way materials are structured to be determined all the way down to the level of individual atoms. In the 1950s it was x-rays which revealed the... 3 days
Novel blood test identifies tumor-derived DNA in early-stage cancer patients
NEWS MEDICAL In a bid to detect cancers early and in a noninvasive way, scientists at the Johns Hopkins Kimmel Cancer Center report they have developed a test that spots... 3 days
Mathematical model helps explain C. elegans decision-making process
PHYS.ORG The C. elegans roundworm sees by eating, sucking in big gulps of bacteria to learn about its surrounding environment. As researchers watched, they noticed an odd pattern marked by "bursts" of eating. 3 days
'Twinkling' enzymes could light the way to better cancer drugs
PHYS.ORG A new test to show the properties of biologically important enzymes could help to streamline development of new treatments. 3 days
White supremacists use a decision tree to affirm or discount the results of DNA tests
PHYS.ORG Now that science can determine a person's racial and ethnic origins from a cheek swab, those devoted to... 3 days
Scientists use magnetic nanoparticles to trigger activity deep inside the brain
NEWS MEDICAL Scientists have used magnetism to activate tiny groups of cells in the brain, inducing bodily movements that include running, rotating and losing control of the extremities... 3 days
Medical News Today: Jumping genes made us human, but can they cause disease?
MNT Ancient bacteria and viruses left their traces all over our DNA. This may have given us an edge in our quest to... 3 days
Impaired DNA replication may lead to trans-generational inheritance of epigenetic changes
NEWS MEDICAL Scientists reveal that a fault in the process that copies DNA during cell division can cause epigenetic changes that may be inherited for up-to five generations. 3 days
Sanford Health launches solid tumor oncolytic virus clinical trial
NEWS MEDICAL Sanford Health is the first site in the United States to launch a clinical trial using a genetically-engineered virus that aims to destroy therapy-resistant tumors. 3 days
Hyundai unveils new fuel cell SUV with longer travel range
PHYS.ORG Hyundai Motor said Thursday it plans to launch early next year a second-generation hydrogen fuel cell vehicle that will travel more than 580 kilometers (360 miles) between fill-ups. 3 days
Research shows how glutamine plays role in regulating cellular differentiation programs
NEWS MEDICAL The 200 different types of cells in the body all start with the same DNA genome. To differentiate into families of bone cells, muscle cells, blood... 3 days
Researchers investigate how previous exposure to West Nile virus affects Zika infection
NEWS MEDICAL West Nile virus is no stranger to the U.S.-Mexico border; thousands of people in the region have contracted the mosquito-borne virus in the past.... 3 days
Immunotherapy drug shows favorable safety profile in patients with advanced small cell lung cancer
NEWS MEDICAL The immunotherapy drug pembrolizumab has demonstrated a favorable safety profile and "promising durable clinical activity" in pretreated patients who exhibit... 3 days
Liquid biopsies show potential use for cancer screening
NEWS MEDICAL A new study has shown the potential of analyzing cell-free DNA (cfDNA) present in patients’ blood for cancer markers in early cancer detection. This technique was used in some instances for patients... 3 days
Research shows probiotics can reduce incidence of sepsis in infants
NEWS MEDICAL A research team at the University of Nebraska Medical Center College of Public Health has determined that a special mixture of good bacteria in the body reduced the... 3 days
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How we inherit masculine and feminine behaviours: a new idea about environment and genes
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Researchers use polystyrene to make next-generation of solar panels even cheaper
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How home security resembles dancing honeybees
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