Prenatal exposure to nicotine increases risk of apnea in brains of newborn rats
...ral fellow in the laboratory of Dr. Ralph Fregosi, describes the study at the Experimental Biology 2003 meeting in San Diego, as part of the American Physiological Society program. In humans, cases of Sudden Infant Death Syndrome (SIDS) occur most often in infants between the ages of two and four months, whil...DNA sequence of chromosome 7 decoded
...c fibrosis, leukemia, and autism. The project also describes discoveries of sites along the chromosome where invading viruses integrate, 'fragile' regions prone to breakage, areas called 'gene jungles' and 'gene deserts', as well as primate-specific genes. In the study, all medically relevant landmarks along t...New technique gives scientists clearest picture yet of all the genes of an animal
...il 7 in advance of its publication in the journal, describes an effort to locate and precisely identify all of the approximately 19,000 genes that have been predicted to exist in the genome of C. elegans. The success of the technique in the worm, whose catalogue of genes is relatively small and well-mapped, is...New book entertainingly tells 'What Good Are Bugs'
...tive non-native species. Waldbauer's final section describes how insects clean up waste and recycle the dead, citing examples of bugs that find sustenance by devouring carcasses and dung. "What Good Are Bugs" is about insects and how they fit into their ecology. "They transmit diseases and damage our crops, b...Scientists identify protein channel that mediates body's ability to feel frigid temperatures
...n this week's issue of the journal Cell, the group describes the "ion channel" protein, called ANKTM1, which is the first noxious (painful) cold receptor identified, and may be an important basic target for pain-modulating drugs. Despite the fact that researchers at several other laboratories had previously id...Scientists debate meaning of 40-million-year-old primate fossils in Nature
...tary about a paper by Seiffert and colleagues that describes the new primate fossils. Both the paper and the commentary will be published in the March 27 issue of Nature. Martin calls the fossils "spectacular," but disagrees with the researchers' own interpretations. "It's great how in one fell swoop, the res...Rockefeller scientists identify 'natural' proteins that push stem cells to produce hair, not skin
... the essential nature of the cell. The study also describes in detail how external protein growth factors produced outside of the stem cells work to activate genetic changes within the cells that prompt hair follicle formation. "Before this, we didn't know how multiple growth factors collaborated to cause cha...15-foot hypodermic needles provide evidence for vast oceanic crustal biosphere
...-authors in the Feb. 6 issue of Nature. That work describes how two seamounts in the North Pacific appear to share the same underground plumbing so that cold seawater being taken in at one seamount is venting as warm hydrothermal fluid at another and the two are 25 miles apart. The seamount at the venting e...Rockefeller, Weill Cornell researchers find link between estrogen, brain structure changes
...the March 15 issue of The Journal of Neuroscience, describes for the first time a chain of molecular events that is activated in the brain's primary memory center, called the hippocampus, when estrogen bathes neurons (nerve cells). The study details how these nerve cells "grow in complexity" when exposed to es...Chimpanzees with little or no human contact found in remote African rainforest
... by National Geographic magazine, and Time describes it as the "Last Eden." The Goualougo Triangle, nestled between two rivers in a Central African rain forest, is so remote that primate researchers who traveled 34 miles, mostly by...Perlegen scientists find genetic basis for difference between humans and non-human primates
...r frequently between humans and nonhuman primates, describes novel findings suggesting that genomic rearrangements, not single base pair changes in DNA, provide the genetic basis for the differences between humans and non-human primates such as the chimpanzee. This is a very surprising and important discovery...Backstage with a command performer
... that ticker tape of base pairings that chemically describes us -- joins combinatorial forces with an assembly of proteins, called histones. The proteins form an octomer, or group of eight, that, together with two loops of DNA thread, form a structure called a nucleosome. These nucleosomes look like beads on a...Unique fleet of underwater vehicles to gather elusive environmental data
...hicle (AUV), to develop a mathematical theory that describes how AUVs can cooperate, and to deploy a fleet of vehicles that can gather environmental data that otherwise would be impossible to collect. "One of our field sites is Hog Island Bay off the coast of Virginia. This bay serves as a natural barrier to ...Pavlov's flies: Researchers identify fruit fly memory mutants
...quest) that accompanies the published study, Tully describes how in 1992 he traveled to the Pavlov Institute in Koltushi, Russia to find the names of Pavlov's Dogs with the intention of naming his fruit fly memory mutants after the dogs. This despite the fact that at that time, he had few such fly mutants, and......assically, Einstein's theory of general relativity describes gravity, but what is yet to be found is the underlying theory, quantum gravity. Current attempts to construct a quantum theory of gravity spoil the neatly packaged property of relativity that holds that all physics should describe observations made ...Allergen-free shrimp? seafood marks a place in food safety research
...f allergy-causing agents, according to Lehrer, who describes his work with shrimp as an example. Lehrer has located the gene sequence that encodes the shrimp allergen and regions of the sequences for the different molecules that interact with the antibody IgE. By altering the epitopes in shrimp allergens that...Genetically engineered mice offer hope for isolating beta cells and treatment of type 2 diabetes
...on of progenitor cells. A New Study This study describes a line of transgenic mice in which the pancreatic -cells are genetically tagged with GFP. The authors of "Transgenic Mice with Green Fluorescent Protein-labeled Pancreatic -Cells" are Manami Hara, Xiaoyu Wang, Toshihiko Kawamura, Vytas P. Bindokas, ...Ground temperature aids in measuring water levels
... published by the Soil Science Society of America, describes the methodology behind using temperature to analyz... ground water at a specific location. The research describes scientific results for field sites in New Mexico and Nevada, where researchers have discovered that ...Popular Science outlines need for long-term studies and more regulation in A.R.T.
... newsstands February 11), Popular Science magazine describes the need for long-term studies and more regulation in assisted reproductive technology (ART). The article "Sallie has 2 Mommies & 1 Daddy," explores the science behind the risks of ART and the problems with the U.S. regulatory system that have allow......ted-entry fisheries, by Sanchirico and Wilen, also describes a win-win situation, in which both the fish stock and the value of the fishery increase. When fishing is not the only ocean use, things can get complicated, as shown in Fish, fishers, seals and tourists: Economic consequences of creating a marine ...