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Categories: Biology: Cell Biology, Chemistry: Biochemistry

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Biology: Biochemistry Biology: General Chemistry: Biochemistry Chemistry: General Chemistry: Organic Chemistry
Published

'Molecular compass' points way to reduction of animal testing      (via sciencedaily.com)     Original source 

Machine learning models have become increasingly popular for risk assessment of chemical compounds. However, they are often considered 'black boxes' due to their lack of transparency. To increase confidence in these models, researchers proposed carefully identifying the areas of chemical space where these models are weak. They developed an innovative software tool for this purpose, and the results of this research approach have just been published.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry
Published

A new reaction to enhance aromatic ketone use in chemical synthesis      (via sciencedaily.com)     Original source 

Researchers develop a one pot process to transform aromatic ketones to esters, offering advancements in pharmaceutical synthesis and materials science.

Chemistry: Biochemistry Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry
Published

Investigating the interplay of folding and aggregation in supramolecular polymer systems      (via sciencedaily.com)     Original source 

Scientists have developed photoresponsive supramolecular polymers that can undergo both intrachain folding and interchain aggregation.

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

Scientists discover new code governing gene activity      (via sciencedaily.com)     Original source 

A newly discovered code within DNA -- coined 'spatial grammar' -- holds a key to understanding how gene activity is encoded in the human genome. This breakthrough finding revealed a long-postulated hidden spatial grammar embedded in DNA. The research could reshape scientists' understanding of gene regulation and how genetic variations may influence gene expression in development or disease.

Biology: Biochemistry Biology: Biotechnology Biology: Botany Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Ecology: Endangered Species Ecology: Nature Offbeat: General Offbeat: Plants and Animals
Published

Researchers uncover the secrets of 'plant puberty'      (via sciencedaily.com)     Original source 

Researchers have identified the genetic changes linked to why plants go through a developmental change similar to 'puberty' at different rates, a discovery which could lead to better crop nutrition.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Molecular
Published

Gut microbial pathway identified as target for improved heart disease treatment      (via sciencedaily.com)     Original source 

Researchers have made a significant discovery about how the gut microbiome interacts with cells to cause cardiovascular disease. The study found phenylacetylglutamine (PAG), produced by gut bacteria as a waste product, then absorbed and formed in the liver, interacts with previously undiscovered locations on beta-2 adrenergic receptors on heart cells once it enters the circulation.

Biology: Biochemistry Biology: Cell Biology
Published

Researchers develop an instant version of trendy, golden turmeric milk      (via sciencedaily.com)     Original source 

If you've visited a trendy cafe in the past few years, you might have noticed 'golden' turmeric milk on the menu. This fancy drink is caffeine-free, coffee-free and can even be vegan. And now, researchers have developed an efficient method to make a powdered, plant-based, instant version that maintains the beneficial properties of the ingredients while also extending its shelf life.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Chemistry: Biochemistry Chemistry: General Geoscience: Geochemistry
Published

Key biofuel-producing microalga believed to be a single species is actually three      (via sciencedaily.com)     Original source 

When a global pandemic forced previous a graduate student out of the lab and onto the computer, he found a world of difference hidden in the long-studied species of Botryoccocus braunii -- and discovered that it isn't one species at all, but three.

Chemistry: Biochemistry
Published

Wearable, stretchable sensor for quick, continuous, and non-invasive detection of solid-state skin biomarkers      (via sciencedaily.com)     Original source 

Detecting diseases early requires the rapid, continuous and convenient monitoring of vital biomarkers. Researchers have now developed a novel sensor that enables the continuous, and real-time detection of solid-state epidermal biomarkers, a new category of health indicators. The team's wearable, stretchable, hydrogel-based sensor overcomes the limitations of current methods that rely on biofluid samples, such as blood, urine and sweat. This makes it a promising alternative for wearable, continuous, and real-time health monitoring, facilitating the early detection of conditions such as cardiovascular diseases and stroke.

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

New insights on how bird flu crosses the species barrier      (via sciencedaily.com)     Original source 

The avian influenza virus needs to mutate to cross the species barrier and to infect and replicate within mammalian cells. Scientists have now deciphered the structure of the avian influenza virus's polymerase when it interacts with a human protein essential for the virus to replicate within the cell. The structure of this replication complex provides important information about the mutations that avian influenza polymerase must undergo to adapt to mammals, including humans. These results can help scientists monitor the evolution and adaptability of bird flu strains, such as H5N1 or H7N9, towards infecting other species.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Biology: Zoology Offbeat: General Offbeat: Plants and Animals
Published

Searching old stem cells that stay young forever      (via sciencedaily.com)     Original source 

The sea anemone Nematostella vectensis is potentially immortal. Using molecular genetic methods, developmental biologists have now identified possible candidates for multipotent stem cells in the sea anemone for the first time. These stem cells are regulated by evolutionary highly conserved genes.

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

Low cortisol, hair-trigger stress response in the brain may underlie Long COVID      (via sciencedaily.com)     Original source 

A new animal study shows that exposure to immune-stimulating proteins left behind by COVID-19 leads to lower cortisol, brain inflammation and a heightened reaction to subsequent stressors.

Biology: Biochemistry Biology: Cell Biology
Published

Weight-loss success depends on eating more protein, fiber while limiting calories      (via sciencedaily.com)     Original source 

Flexibility and personalization were key in optimizing dieters' weight-loss success on the Individualized Diet Improvement Program, created by food scientists.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Engineering: Nanotechnology Offbeat: General
Published

Morphable materials: Researchers coax nanoparticles to reconfigure themselves      (via sciencedaily.com)     Original source 

A view into how nanoscale building blocks can rearrange into different organized structures on command is now possible with an approach that combines an electron microscope, a small sample holder with microscopic channels, and computer simulations, according to a new study.

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

Preliminary study shows potential of Manuka honey as a nutraceutical for breast cancer      (via sciencedaily.com)     Original source 

A new study found that Manuka honey could potentially be an alternative, natural option for breast cancer prevention and treatment -- particularly for estrogen receptor (ER)-positive breast cancer, the most common subtype of breast cancer that accounts for about 70-80% of all breast cancer cases.

Chemistry: Biochemistry
Published

Taming Parkinson's disease with intelligent brain pacemakers      (via sciencedaily.com)     Original source 

Two new studies are pointing the way toward round-the-clock personalized care for people with Parkinson's disease through an implanted device that can treat movement problems during the day and insomnia at night.

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

Mining the microbiome: Uncovering new antibiotics inside the human gut      (via sciencedaily.com)     Original source 

Researchers surveyed the gut microbiomes of nearly 2,000 people, discovering dozens of potential new antibiotics. The lead candidate, prevotellin-2, demonstrated anti-infective capabilities on par with polymyxin B, an FDA-approved antibiotic used today to treat multidrug-resistant infections, suggesting that the human gut microbiome may contain antibiotics that will someday find clinical application.

Anthropology: Cultures Anthropology: General Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General
Published

Ancient DNA reveals Indigenous dog lineages found at Jamestown, Virginia      (via sciencedaily.com)     Original source 

Previous scientific studies have indicated that North American dog lineages were replaced with European ones between 1492 and the present day. To better understand the timing of this replacement, researchers sequenced mitochondrial DNA from archaeological dogs. Their findings suggest a complex social history of dogs during the early colonial period.