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tag obesity evolution

a trio of infant mice, two brown mice on the ends and one white mouse in the middle
Mice Pass Epigenetic Tweaks to Pups
Katherine Irving | Feb 17, 2023 | 5 min read
An engineered methylation pattern persisted for four generations of mice, demonstrating transgenerational epigenetic inheritance can occur in mammals.
An illustration of green bacteria floating above neutral-colored intestinal villi
The Inside Guide: The Gut Microbiome’s Role in Host Evolution
Catherine Offord | Jul 1, 2021 | 10+ min read
Bacteria that live in the digestive tracts of animals may influence the adaptive trajectories of their hosts.
Illustration showing a puzzle piece of DNA being removed
Large Scientific Collaborations Aim to Complete Human Genome
Brianna Chrisman and Jordan Eizenga | Sep 1, 2022 | 10+ min read
Thirty years out from the start of the Human Genome Project, researchers have finally finished sequencing the full 3 billion bases of a person’s genetic code. But even a complete reference genome has its shortcomings.
Notebook
Eugene Russo | Dec 5, 1999 | 7 min read
Contents Pivotal pump Leptin limbo Clue to obesity Biotech Web site Helping hand Mapping malaria Notebook Pictured above are pigmented bacterial colonies of Deinococcus radiodurans, the most radiation-resistant organism currently known. DEINO-MITE CLEANUP In 1956, investigators discovered a potentially invaluable cleanup tool in an unlikely place. A hardy bacterium called Deinococcus radiodurans unexpectedly thrived in samples of canned meat thought to be sterilized by gamma radiation. The b
Games for Science
The Scientist | Jan 1, 2013 | 10+ min read
Scientists are using video games to tap the collective intelligence of people around the world, while doctors and educators are turning to games to treat and teach.
Genetic Parasites and a Whole Lot More
Barry Palevitz | Oct 15, 2000 | 10+ min read
Photo: Ori Fragman, Hebrew University Hordeum spontaneum, the plant studied for BARE-1 retroelements. With genome sequences arriving almost as regularly as the morning paper, the public's attention is focused on genes--new genes to protect crops against pests; rogue genes that make bacteria resistant to antibiotics; faulty genes that, if fixed, could cure diseases such as muscular dystrophy. What many people don't realize is that genes account for only part of an organism's DNA, and in many c
Assays Galore
Lanette Fee | Sep 21, 2003 | 9 min read
Courtesy of BD Biosciences Pharmingen  COLOR CODING: Multiplexed bead-based assays, like BD Biosciences' Cytometric Bead Array (shown), test for multiple analytes in a single vial. The key is in the colors: one hue indicates the bead ID, and the intensity of the second, how much protein has been captured. In today's fast-paced research environment, technologies for speedy, cost-efficient analyses reign supreme. As part of this general trend, techniques for multiplexing, that is, simultan
Notebook
The Scientist Staff | Jul 7, 1996 | 7 min read
On June 14, a House Appropriations subcommittee gave some researchers cause for celebration when it surprisingly voted to remove a provision in a government spending bill that extended a ban on federal funding of human embryo research. However, their glee was short-lived. The full panel turned around on June 25 and adopted an amendment to continue the research ban. John Eppig, senior staff scientist at Jackson Laboratory in Bar Harbor, Maine, doubts that the ban will be overturned anytime soon,
Illuminating Behaviors
Douglas Steinberg | Jun 1, 2003 | 6 min read
Courtesy of Genevieve Anderson If not for Nobel laureates Thomas Hunt Morgan, Eric R. Kandel, and Sydney Brenner, the notion of a general behavioral model might seem odd. Behaviors, after all, are determined by an animal's evolutionary history and ecological niche. They are often idiosyncratic, shared in detail only by closely related species. But, thanks to Morgan's research in the early 20th century, and Kandel's and Brenner's work over the past 35 years, the fly Drosophila melanogaster, t
Epigenetics: Genome, Meet Your Environment
Leslie Pray | Jul 4, 2004 | 10+ min read
©Mehau Kulyk/Photo Researchers, IncToward the end of World War II, a German-imposed food embargo in western Holland – a densely populated area already suffering from scarce food supplies, ruined agricultural lands, and the onset of an unusually harsh winter – led to the death by starvation of some 30,000 people. Detailed birth records collected during that so-called Dutch Hunger Winter have provided scientists with useful data for analyzing the long-term health effects of prenat

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