News tagged with acid levels

Protein adaptation shows that life on early earth lived in a hot, acidic environment

A new study reveals that a group of ancient enzymes adapted to substantial changes in ocean temperature and acidity during the last four billion years, providing evidence that life on Early Earth evolved from ...

Chemistry / Biochemistry

created Apr 04, 2011 | popularity 4.6 / 5 (9) | comments 1 | with audio podcast

New antibiotic could make food safer and cows healthier

Food-borne diseases might soon have another warrior to contend with, thanks to a new molecule discovered by chemists at the University of Illinois. The new antibiotic, an analog of the widely used food preservative ...

Chemistry / Biochemistry

created Mar 19, 2012 | popularity 4.5 / 5 (2) | comments 0 | with audio podcast

Researchers develop technique for measuring stressed molecules in cells

Biophysicists at the University of Pennsylvania have helped develop a new technique for studying how proteins respond to physical stress and have applied it to better understand the stability-granting structures in normal ...

Biology / Cell & Microbiology

created May 03, 2011 | popularity not rated yet | comments 0 | with audio podcast

Micro-RNA blocks the effect of insulin in obesity

(PhysOrg.com) -- German researchers have discovered a new mechanism that leads to the development of type 2 diabetes in obesity.

Biology / Cell & Microbiology

created Mar 31, 2011 | popularity not rated yet | comments 0 | with audio podcast

Birch bark ingredient comes with many metabolic benefits

An ingredient found in abundance in birch bark appears to have an array of metabolic benefits, according to new studies in animals that are reported in the January issue of Cell Metabolism. In mice, the compound known as bet ...

Medicine & Health / Medical research

created Jan 04, 2011 | popularity 5 / 5 (7) | comments 1 | with audio podcast

Mammalian aging process linked to overactive cellular pathway

Whitehead Institute researchers have linked hyperactivity in the mechanistic target of rapamycin complex 1 (mTORC1) cellular pathway, to reduced ketone production, which is a well-defined physiological trait of aging in mice.

Medicine & Health / Medical research

created Dec 22, 2010 | popularity 4.5 / 5 (2) | comments 0 | with audio podcast

RNA snippets control protein production by disabling mRNAs

Short pieces of RNA, called microRNAs, control protein production by causing the proteins' RNA templates (known as messenger RNA or mRNA) to be disabled by the cell, according to Whitehead Institute scientists.

Medicine & Health / Genetics

created Aug 16, 2010 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Fla. ridges' mystery marine fossils tied to rising land, not seas

Sea level has not been as high as the distinctive ridges that run down the length of Florida for millions of years. Yet recently deposited marine fossils abound in the ridges' sands.

Space & Earth / Earth Sciences

created Jun 01, 2010 | popularity 5 / 5 (3) | comments 0 | with audio podcast

USF Study Shows First Direct Evidence of Ocean Acidification

(PhysOrg.com) -- Seawater in a vast and deep section of the northeastern Pacific Ocean shows signs of increased acidity brought on by manmade carbon dioxide in the atmosphere -- a phenomenon that carries with ...

Space & Earth / Earth Sciences

created Jan 20, 2010 | popularity 3.8 / 5 (27) | comments 54 | with audio podcast

Adjusting acidity with impunity

(PhysOrg.com) -- How do individual cells or proteins react to changing pH levels? Researchers at the MESA+ Institute for Nanotechnology at the University of Twente, The Netherlands, have developed a technique ...

Chemistry / Analytical Chemistry

created Dec 22, 2009 | popularity 4.5 / 5 (2) | comments 0

New model may help scientists better predict and prevent influenza outbreaks

(PhysOrg.com) -- Each year, the influenza virus evolves. And each year, public health officials try to predict what the new strain will be and how it will affect the population in order to best combat it.

Medicine & Health / Medical research

created Oct 29, 2009 | popularity not rated yet | comments 0

Novel polymer delivers genetic medicine, allows tracking

Theresa M. Reineke, associate professor of chemistry in the College of Science, and colleagues in her lab at Virginia Tech and at the University of Cincinnati have developed a new molecule that can travel ...

Chemistry / Polymers

created Oct 06, 2009 | popularity 5 / 5 (3) | comments 0

Little known type of cholesterol may pose the greatest heart disease risk

Health-conscious people know that high levels of total cholesterol and LDL cholesterol (the so-called "bad" cholesterol) can increase the risk of heart attacks. Now scientists are reporting that another form ...

Medicine & Health / Medical research

created Aug 20, 2009 | popularity 4.8 / 5 (6) | comments 2

Tryptophan deficiency may underlie quinine side effects

Researchers have found that the anti-malarial drug quinine can block a cell's ability to take up the essential amino acid tryptophan, a discovery that may explain many of the adverse side-effects associated ...

Chemistry / Biochemistry

created Jun 26, 2009 | popularity 4.8 / 5 (4) | comments 1

Biologists Discover How 'Silent' Mutations Influence Protein Production

(PhysOrg.com) -- Biologists at the University of Pennsylvania have revealed a hidden code that determines the expression level of a gene, providing a way to distinguish efficient genes from inefficient ones. ...

Biology / Cell & Microbiology

created Apr 09, 2009 | popularity 5 / 5 (2) | comments 1