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Latest Tetrapyrroles Stories

New Insight Into Photosynthesis Provided By University Of Toronto-led Study
2013-04-05 09:22:49

University of Toronto Pigments found in plants and purple bacteria employed to provide protection from sun damage do more than just that. Researchers from the University of Toronto and University of Glasgow have found that they also help to harvest light energy during photosynthesis. Carotenoids, the same pigments which give orange color to carrots and red to tomatoes, are often found together in plants with chlorophyll pigments that harvest solar energy. Their main function is...

2012-12-06 12:04:53

Each year, about 610,000 Americans suffer their first heart attack, according to the Centers for Disease Control and Prevention. Heart attacks and other symptoms of cardiovascular disease can be caused when blockage occurs in the arteries. In a new study from the University of Missouri, a scientist has discovered a natural defense against arterial blockage: bilirubin. Bilirubin is typically something parents of newborns hear about when their children are diagnosed with jaundice. Generated...

2011-08-19 02:18:10

It is helpful "” even life-saving "” to have a warning sign before a structural system fails, but, when the system is only a few nanometers in size, having a sign that's easy to read is a challenge. Now, thanks to a clever bit of molecular design by University of Pennsylvania and Duke University bioengineers and chemists, such warning can come in the form of a simple color change. The study was conducted by professor Daniel Hammer and graduate students Neha Kamat and Laurel Moses...

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2011-06-07 09:53:15

Scientists from NASA's Goddard Space Flight Center in Greenbelt, Md., have produced groundbreaking global maps of land plant fluorescence, a difficult-to-detect reddish glow that leaves emit as a byproduct of photosynthesis. While researchers have previously mapped how ocean-dwelling phytoplankton fluoresce, the new maps are the first to focus on land vegetation and to cover the entire globe. To date, most satellite-derived information related to the health of vegetation has come from...

2011-05-26 20:59:54

Researchers have discovered a tiny protein without which the soil and lab-dwelling worm C. elegans can't deliver iron-rich heme taken in from their diets to the rest of their bodies or to their developing embryos. The finding reported in the May 27th issue of the journal Cell, a Cell Press publication, offers important insight into the transport of the essential ingredient in worms and other animals, including humans. Researchers say it also suggests a strategy for the development of drugs...

2011-05-26 20:58:20

Using a tiny bloodless worm, University of Maryland Associate Professor Iqbal Hamza and his team have discovered a large piece in the puzzle of how humans, and other organisms, safely move iron around in the body. The findings, published in the journal Cell, could lead to new methods for treating age-old scourges - parasitic worm infections, which affect more than a quarter of the world's population, and iron deficiency, the world's number one nutritional disorder. Using C. elegans, a common...

2011-01-30 23:59:00

AMSTERDAM, The Netherlands, January 31, 2011 /PRNewswire-FirstCall/ -- Amsterdam Molecular Therapeutics (Euronext: AMT), a leader in the field of human gene therapy, announced today that the European Union (EU) has finalized a EUR 3.3 million grant to the AIPGENE consortium, of which AMT is a member, for the development of a gene therapy product for Acute Intermittent Porphyria (AIP). AIP is a severe and progressive disease caused by the inability of the body to produce the heme protein,...

2011-01-10 14:35:18

New insights from the nano world The mechanism for binding oxygen to metalloporphyrins is a vital process for oxygen-breathing organisms. Understanding how small gas molecules are chemically bound to the metal complex is also important in catalysis or the implementation of chemical sensors. When investigating these binding mechanisms, scientists use porphyrin rings with a central cobalt or iron atom. They coat a copper or silver support surface with these substances. An important...

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2010-09-09 08:25:00

A research team led by Cary Pirone from the Department of Biological Sciences at Florida International University has identified bilirubin in the popular Bird of Paradise plant. The breakthrough study, published in the September 2010 issue of the American Society for Horticultural Science's journal HortScience, provides new insights into color production in this iconic tropical plant. Previously thought to be an "animal-only" pigment, bilirubin is best known as the yellowish hue associated...

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2009-12-18 08:42:57

Scientists at Washington University have isolated a channel that shuttles the vital but vulnerable heme molecule across biological membranes In some ways a cell in your body or an organelle in that cell is like an ancient walled town. Life inside either depends critically on the intelligence of the gatekeepers. If too many barbarians sneak into town, the town may be put to the torch. And if the cellular gatekeepers can't control the flow of ions and molecules into and out of the cell, the...


Word of the Day
drawcansir
  • A blustering, bullying fellow; a pot-valiant braggart; a bully.
This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.
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