Life & Chemistry

Life & Chemistry

Innovative Micropost Arrays Enhance Stem Cell Development

Researchers created a library of micromolded, hexagonally spaced elastomeric micropost arrays, one to a few microns high, on which they cultivated cells. The…

Life & Chemistry

Ancient Gene Family Linked to Epileptic Seizures Discovery

“In healthy people, nerves do not fire excessively in response to small stimuli. This function allows us to focus on what really matters. Nerve cells maintain…

Life & Chemistry

Mining bacterial genomes reveals valuable 'hidden' drugs

Scientists from the University of Groningen in The Netherlands successfully used a 'genome mining' approach to find and activate a group of genes in the…

Life & Chemistry

UCSD scientists find gas pedal — and brake — for uncontrolled cell growth

The findings are published in the online edition of Nature Medicine by David A. Cheresh, PhD, professor of pathology in the UC San Diego School of Medicine and…

Life & Chemistry

Red blood cells have a tiny but effective protector — microRNA

Pediatric researchers have discovered a new biological pathway in which small segments of RNA, called microRNA, help protect red blood cells from injury caused…

Life & Chemistry

Researchers find key step in body's ability to make red blood cells

They found that a tiny fragment of ribonucleic acid (RNA), a chemical cousin of DNA, prompts stem cells to mature into red blood cells. The researchers also…

Life & Chemistry

Missing Puma Uncovers Insights Into Cancer Cell Death

Programmed cell death, also called apoptosis, is an important process in human biology as it removes unwanted and damaged cells from our bodies. This process…

Life & Chemistry

Some like it hot: How to heat a 'nano bathtub' the JILA way

Described in a new paper,* the JILA technique is faster, more controllable, and less prone to damaging expensive optics or accidentally altering chemistry than…

Life & Chemistry

Kinked Nanopores Enhance DNA Sequencing Efficiency

In an innovation critical to improved DNA sequencing, a markedly slower transmission of DNA through nanopores has been achieved by a team led by Sandia…

Life & Chemistry

New approach to Alzheimer's therapy

The brains of Alzheimer patients have high accumulations of the material beta-amyloid, which appear in the form of plaques. The precursors of these plaques are…

Life & Chemistry

Protein complex reveals molecular mechanism of innate immune response

To defend against foreign pathogens, plants and animals employ proteins known as immune sensors which recognize extracellular molecules and initiate immune…

Life & Chemistry

Snake Venom Studies Offer New Insights for Heart Disease Therapies

The Japanese team is reporting in a Journal of Biological Chemistry “Paper of the Week” that they are optimistic that inhibiting a protein found on the surface…

Life & Chemistry

New Mechanism in Salmonella Affects Virulence and Antibiotic Resistance

Researchers have discovered a novel mechanism in Salmonella that affects its virulence and its susceptibility to antibiotics by changing its production of…

Life & Chemistry

Lower Speed Limit Set for Cell-Signaling Protein Assembly

How proteins spontaneously “fold” from wiggling chains of amino acids into a wide variety of functional – or malfunctioning – three-dimensional molecules is…

Life & Chemistry

New Insights on Polymer Movement Through Nanometer Pores

Polymer strands wriggle their way through nanometer-sized pores in a membrane to get from here to there and do their jobs. New theoretical research by Rice…

Life & Chemistry

Some trees 'farm' bacteria to help supply nutrients

“In acidic forest soils, availability of inorganic nutrients is a tree-growth-limiting factor. A hypothesis to explain sustainable forest development proposes…

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