Wednesday, September 26, 2012

Breast Cancer - Genomic Insight

In the news:
by Gina Kolata
New York Times Health
September 23, 2012
Breast cancer screening: a radiologist records comments of mammograms on a voice recorder.
Credit: BURGER / PHANIE / Science Source

Thursday, September 20, 2012

Take it Without A Grain of Salt

In the news:
by Allison Aubrey
September 17, 2012
A young African-American female child has her blood pressure checked.
Credit: John M. Daugherty / Science Source

Wednesday, September 19, 2012

Pain Killer Headaches

In the news:
by James Gallagher
BBC News Health
September 18, 2012
Woman taking pain medicine for her headache.
Credit: Olivier Voisin / Science Source

Friday, September 14, 2012

The Fluoridation of Portland, Oregon

In the news:
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.

Wednesday, September 12, 2012

The Goose that Laid the Green Fluorescent Protein

In the news:
by Edyta Zielinska
The Scientist
September 12, 2012
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.

Friday, September 7, 2012

Signs of Life - 3.5 billion years ago

In the news:
by John Timmer
September 4, 2012
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.

Thursday, September 6, 2012

Farm Use of Antibiotics Resistent to Regulation

In the news:
by Sabrina Tavernise
New York Times Health
September 3, 2012
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.