Showing 20 articles starting at article 341

< Previous 20 articles        Next 20 articles >

Categories: Biology: Cell Biology, Engineering: Graphene

Return to the site home page

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular
Published

'Cloaked' proteins deliver cancer-killing therapeutics into cells      (via sciencedaily.com)     Original source 

Scientists have designed a way to 'cloak' proteins in a generalized technique that could lead to repurposing things like antibodies for biological research and therapeutic applications.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Microbiology
Published

Scientists uncover a multibillion-year epic written into the chemistry of life      (via sciencedaily.com)     Original source 

Life evolved from simple geochemical processes present on the early Earth. However, the details of this transformation remain a mystery. In this study, researchers modeled the emergence of metabolic pathways from simple geochemical precursors and concluded that surprisingly few reactions in the history of metabolism may have been lost to time.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Genetic mosaicism more common than thought      (via sciencedaily.com)     Original source 

Researchers found that approximately one in 40 human bone marrow cells carry massive chromosomal alterations without causing any apparent disease or abnormality. Even so-called normal cells carry all sorts of genetic mutations, meaning there are more genetic differences between individual cells in our bodies than between different human beings. The discovery was enabled by a single-cell sequencing technology called Strand-seq, a unique DNA sequencing technique that can reveal subtle details of genomes in single cells that are too difficult to detect with other methods.

Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: General
Published

Researchers have unveiled a new method to manipulate cell movement in embryos      (via sciencedaily.com)     Original source 

Scientists have developed a new method that can manipulate the movement of embryonic cells using short-time attractors.

Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Genetics Offbeat: Earth and Climate Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals
Published

How killifish embryos use suspended animation to survive over 8 months of drought      (via sciencedaily.com)     Original source 

The African turquoise killifish lives in ephemeral ponds in Zimbabwe and Mozambique. To survive the annual dry season, the fish's embryos enter a state of extreme suspended animation or 'diapause' for approximately 8 months. Now, researchers have uncovered the mechanisms that enabled the killifish to evolve this extreme survival state.

Biology: Botany Biology: Cell Biology Biology: General Ecology: Endangered Species Ecology: Nature
Published

Transgenic expression of rubisco factors increases photosynthesis and chilling tolerance in maize      (via sciencedaily.com)     Original source 

Maize is one of the world's most widely grown crops and is essential to global food security. But like other plants, its growth and productivity can be limited by the slow activity of Rubisco, the enzyme responsible for carbon assimilation during photosynthesis. Scientists have now demonstrated a promising approach to enhancing Rubisco production, thus improving photosynthesis and overall plant growth.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Microbiology Biology: Molecular Chemistry: Biochemistry Chemistry: General Chemistry: Organic Chemistry Physics: Optics
Published

Observing mammalian cells with superfast soft X-rays      (via sciencedaily.com)     Original source 

Researchers have developed a new technique to view living mammalian cells. The team used a powerful laser, called a soft X-ray free electron laser, to emit ultrafast pulses of illumination at the speed of femtoseconds, or quadrillionths of a second. With this they could capture images of carbon-based structures in living cells for the first time, before the soft X-ray radiation damaged them.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Microbiology
Published

New approach to Epstein-Barr virus and resulting diseases      (via sciencedaily.com)     Original source 

The Epstein-Barr virus can cause a spectrum of diseases, including a range of cancers. Emerging data now show that inhibition of a specific metabolic pathway in infected cells can diminish latent infection and therefore the risk of downstream disease.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

New 'atlas' provides unprecedented insights on how genes function in early embryo development      (via sciencedaily.com)     Original source 

Biologists have provided new insights on a longstanding puzzle in biology: How complex organisms arise from a single fertilized cell. Producing a new 'gene atlas' with 4-D imaging, the researchers captured unprecedented insights on how embryonic development unfolds.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Novel approach to interrogate tissue-specific protein-protein interactions      (via sciencedaily.com)     Original source 

Multicellular organisms, like animals and plants, have complex cells with diverse functions. This complexity arises from the need for cells to produce distinct proteins that interact with each other. This interaction is crucial for cells to carry out their specific tasks and to form complex molecular machinery. However, our current understanding of such protein-protein interactions often lacks cellular contexts because they were usually studied in an in vitro system or in cells isolated from their tissue environment. Effective methods to investigate protein-protein interactions in a tissue-specific manner are largely missing.

Biology: Cell Biology Biology: Marine Ecology: Animals Ecology: Extinction
Published

Biodiversity in crabs: More than counting species      (via sciencedaily.com)     Original source 

Researchers compare the shield shapes of crabs and find unexpected differentiation.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Tracking down the genetic causes of lupus to personalize treatment      (via sciencedaily.com)     Original source 

Treatment of autoimmune diseases like lupus has long relied on steroids to knock down the immune system, but more targeted therapies are currently undergoing clinical trials. To make sure these therapies get to the patients who will benefit, work is needed to identify the specific mutations behind each patient's disease. Researchers now report several dozen mutations associated with oversensitive toll-like receptors -- a major cause of autoimmune disease -- and linked two mutations to patients.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Biology: Marine Ecology: Extinction Ecology: Nature Ecology: Sea Life Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Sexual parasitism helped anglerfish invade the deep sea during a time of global warming      (via sciencedaily.com)     Original source 

Members of the vertebrate group including anglerfishes are unique in possessing a characteristic known as sexual parasitism, in which males temporarily attach or permanently fuse with females to mate. Now, researchers show that sexual parasitism arose during a time of major global warming and rapid transition for anglerfishes from the ocean floor to the deep, open sea.

Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Biology: Zoology
Published

Exploring diversity in cell division      (via sciencedaily.com)     Original source 

Animals and fungi predominantly use two different modes of cell division -- called open and closed mitosis, respectively. A new study has shown that different species of Ichthyosporea -- marine protists that are close relatives of both animals and fungi -- use either open and closed mitosis, closely correlated to whether the species has multinucleate life cycle stages. The study demonstrates the way animals do cell division might have evolved long before animals themselves did and how this is linked to an organism's life cycle.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Sweet move: a modified sugar enhances antisense oligonucleotide safety and efficacy      (via sciencedaily.com)     Original source 

Researchers found that adding a newly developed modified sugar, BNAP-AEO, to gapmer antisense oligonucleotides (ASOs) increased their affinity for target RNAs, thus significantly enhancing their gene-silencing effects in vitro and in vivo. The BNAP-AEO modification also decreased gapmer ASO toxicity to the central nervous system (CNS), suggesting that it could improve the clinical application of ASO treatment of CNS disease.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Microbiology Environmental: General Geoscience: Geochemistry
Published

How the 'home' environment influences microbial interactions      (via sciencedaily.com)     Original source 

A new study shows that real-world ocean conditions make a huge difference in how viral infection affects host bacteria. The findings indicate it is very important to study cells and virocells under nutrient conditions that more closely resemble what they encounter in nature.

Chemistry: Biochemistry Chemistry: Organic Chemistry Engineering: Graphene
Published

Scientists develop new battery-free lactic acid sensor      (via sciencedaily.com)     Original source 

Scientists have created a new type of chemosensor (demonstrated for lactic acid sensing) which functions with electricity but without the need for reference electrodes or battery power.

Biology: Biochemistry Biology: Cell Biology Biology: General
Published

Naturally occurring substance in pomegranates can improve treatment of Alzheimer's disease      (via sciencedaily.com)     Original source 

A substance naturally occurring in i.a. pomegranates, strawberries and walnuts can improve memory and treatment of Alzheimer's disease, a new study concludes.