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tag polyunsaturated fatty acids developmental biology evolution

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.
Protein Synthesis Enzymes Have Evolved Additional Jobs
Amber Dance | Jun 1, 2020 | 10+ min read
Aminoacyl-tRNA synthetases, which help translate the genetic code into protein, also function in angiogenesis, fat metabolism, and more.
Top 10 Innovations 2021
2021 Top 10 Innovations
The Scientist | Dec 1, 2021 | 10+ min read
The COVID-19 pandemic is still with us. Biomedical innovation has rallied to address that pressing concern while continuing to tackle broader research challenges.
The Role of Mom’s Microbes During Pregnancy
Carolyn A. Thomson and Kathy D. McCoy | Aug 1, 2021 | 10+ min read
Bacteria in the gut influence the production of antibodies and themselves secrete metabolites. In a pregnant woman, these compounds may influence immune development of her fetus.
Ribozymes: Hearkening Back to an RNA World
Jeffrey Perkel | Sep 15, 2002 | 9 min read
Illustration: Ned Shaw LIKE MOLECULAR TOY-MAKERS, ribozyme researchers create tools with evolutionary, diagnostic, and therapeutic applications. Nearly 20 years ago, Tom Cech and Sidney Altman discovered that some naturally occurring RNAs could perform enzymatic reactions, earning these researchers the 1989 Nobel Prize in chemistry. Scientists have now identified several examples of RNA enzymes, or ribozymes. Most make or break the phosphodiester bonds in nucleic acid backbones, but some
Inner Sanctum
Jeanne Mcadara | May 28, 2000 | 9 min read
Reagents for Nuclear Hormone Receptor Research Courtesy of Karo Bio ABEffect of an agonist (red spheres) or agonist/antagonist (green spheres) on the C terminal helix of the ligand binding domain of the estrogen receptor The survival of a living system depends on its ability to communicate with and respond to its surroundings. Even the simplest unicellular organism has surface molecules for assessing the external environment. Evolution of complex life forms required intricate methods for respo
What Sensory Receptors Do Outside of Sense Organs
Sandeep Ravindran | Sep 1, 2016 | 10+ min read
Odor, taste, and light receptors are present in many different parts of the body, and they have surprisingly diverse functions.
Articles Alert
The Scientist Staff | Aug 7, 1988 | 8 min read
The Scientist has asked a group of experts to periodically comment upon recent articles that they have found noteworthy. Their selections, presented here in every issue, we neither endorsements of content nor the result of systematic searching. Rather, they are personal choices of articles they believe the scientific community as a whole may also find interesting. Reprints of any articles cited here may be ordered through The Genuine Article 3501 Market St., Philadelphia, Pa. 19104, or by telep
Micronutrients and Infection
Steve Bunk | Apr 16, 2000 | 6 min read
Courtesy Pacific Northwest National Laboratory Just how important are vitamins and minerals in influencing resistance to infectious diseases? Some of the best current answers to that question will be offered in a supplement to the Journal of Infectious Diseases appearing later this year. The special publication, stemming from a 1999 workshop organized by the National Institute of Allergy and Infectious Diseases, attests that the field is rife with research activity nowadays. Micronutrients such
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

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