Showing posts from September, 2012

Breast Cancer - Genomic Insight

In the news: "Study Divides Breast Cancer Into Four Distinct Types" by Gina Kolata New York Times Health September 23, 2012 BM3235 Breast cancer screening: a radiologist records comments of mammograms on a voice recorder. Credit: BURGER / PHANIE / Science Source

Take it Without A Grain of Salt

In the news: "U.S. Kids Eat Nearly As Much Salt As Adults, Putting Health At Risk" by Allison Aubrey NPR  September 17, 2012 BB7116 A young African-American female child has her blood pressure checked. Credit: John M. Daugherty / Science Source

Pain Killer Headaches

In the news: "Painkillers 'are the cause' of millions of headaches" by James Gallagher BBC News Health September 18, 2012 BC9168 Woman taking pain medicine for her headache. Credit: Olivier Voisin / Science Source

The Fluoridation of Portland, Oregon

In the news: "Portland Approves Fluoridation by '14" by Kirk Johnson New York Times September 12, 2012
SEM: Bacteria in a hole resulting from tooth decay. These bacteria belong to the normal oral flora. Under certain conditions, like the presence of sugar, some bacteria produce lactic acid, which attacks the enamel and causes caries. Magnification = 4,500x Credit: Eye of Science / Photo Researchers, Inc.

The Goose that Laid the Green Fluorescent Protein

In the news: "The Golden Goose Is Awarded" by Edyta Zielinska The Scientist September 12, 2012
SJ9603 Genetically modified mosquito larvae. Larvae of the mosquito (Anopheles stephensi), glowing green under ultraviolet light. The gene for enhanced green fluorescent protein (EGFP), has been introduced into the mosquito genome. EGFP is a version of the green fluorescent protein (GFP) from the jellyfish Aequorea victoria that had been mutated in the lab to give a brighter glow. The green glow shows that the EGFP gene has been successfully introduced. This raises hopes that a gene could be introduced that would make the mosquitoes unable to carry the Plasmodium sp. protozoa that cause malaria, which would save millions of lives. Credit: Sinclair Stammers / Photo Researchers, Inc.

Signs of Life - 3.5 billion years ago

In the news: "3.5 billion year old organic deposits show signs of life" by John Timmer arstechnica  September 4, 2012 3W7950 Stromatolites in Shark Bay, Australia, in sea water. Stromatolites, concretions of bacteria and algae, are an ancient form of life. Credit: B. G. Thomson / Photo Researchers, Inc.

Farm Use of Antibiotics Resistent to Regulation

In the news: "Farm Use of Antibiotics Defies Scrutiny" by Sabrina Tavernise New York Times Health September 3, 2012 SA0225 Veterinary surgeon injecting penicillin (antibiotic) into the teat, or nipple, of a cow's udder (mammary gland), which has become infected by the bacteria, Staphyloccous sp & Streptococcus sp. The infection appears on the surface of the skin as black marks, & was further irritated (redness) by the automatic suction cups used during milking. Credit: David Leah / Photo Researchers, Inc.