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Prion Protein in Cell Culture
The fatal brain disease
Creutzfeldt-Jakob in humans,
BSE (bovine spongiform
encephalopathy) in cattle
and scrapie in sheep are
so-called prion diseases,
whereby one of the body's
... > full story
Moss Helps Chart the Conquest of Land by Plants
Clues to how the first land
plants managed to avoid
drying out might be provided
by bryophytes, a group that
includes the mosses, many of
which retain remarkable
... > full story
How Respiratory Tubes and Capillaries Form in Flies
Scientists in Spain report
on the formation of the
small-diameter respiratory
tubes of the fly Drosophila
-- a process that resembles
the development of the
... > full story
Evolution Impacts Environment: Fundamental Shift in How Biologists Perceive Relationship Between Evolution and Ecology
The traditional view is that
ecology shapes evolution.
Some research has suggested,
however, that evolutionary
processes reciprocate by
... > full story
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Blueberries Counteract Intestinal Diseases
February 9, 2010 — It is already known that blueberries are rich in antioxidants and vitamins. New research shows that blueberry fiber is important and can alleviate and protect against intestinal inflammations, such ... > full story -
Complete Chemokine Profile of a Cell
February 9, 2010 — Chemokines are a large group of proteins whose predominant function is to direct cell migration. They regulate many physiological and pathophysiological processes, in particular in the immune system. ... > full story -
Method of the Future Uses Single-Cell Imaging to Identify Gene Interactions
February 9, 2010 — Cellular imaging offers a wealth of data about how cells respond to stimuli, but harnessing this technique to study biological systems is a daunting challenge. Researchers have now developed a novel ... > full story -
Adapting to Clogged Airways Makes Common Pathogen Resist Powerful Drugs
February 9, 2010 — Mutations of a common environmental pathogen that causes chronic lung disease in patients with cystic fibrosis are able to survive in oxygen-poor, nitrate-rich airway secretions. This same survival ... > full story -
Cells Can Read Damaged DNA Without Missing a Beat
February 9, 2010 — Under certain growth-limiting conditions, enzymes that read DNA can skim through damaged DNA without skipping any letters in the genetic "text." This suggests a mechanism that can allow bacteria to ... > full story -
Like Escape Artists, Rotifers Elude Enemies by Drying Up and -- Poof! -- They Are Gone With the Wind
February 8, 2010 — They haven't had sex in some 30 million years, but some very small invertebrates named bdelloid rotifers are still shocking biologists -- they should have gone extinct long ago. Researchers have ... > full story -
Argonautes: A Big Turn-Off for Proteins
February 8, 2010 — Scientists believe they may have figured out how genetic snippets called microRNAs are able to shut down the production of some ... > full story -
Virology: Some Viruses Use Fats to Penetrate a Cell
February 8, 2010 — SV40 viruses use an amazing means of communication, in order to be able to penetrate into a cell: fats, whose structure must fit like a key in a ... > full story -
Did Bacteria Develop Into More Complex Cells Much Earlier in Evolution Than Thought?
February 8, 2010 — Biochemists have described the process by which bacteria developed into more complex cells and found this crucial step happened much earlier in the evolutionary timeline than previously ... > full story -
Cells Send Dirty Laundry Home to Mom
February 8, 2010 — Understanding how aged and damaged mother cells manage to form new and undamaged daughter cells is one of the toughest riddles of aging, but scientists now know how yeast cells do it. In a ... > full story
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