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tag dietary supplement cell molecular biology

T Cells and Neurons Talk to Each Other
Ashley Yeager | Oct 1, 2020 | 10+ min read
Conversations between the immune and central nervous systems are proving to be essential for the healthy social behavior, learning, and memory.
Students Study Their Own Microbiomes
Jef Akst | Jun 1, 2016 | 4 min read
Pooping into a petri dish is becoming standard practice as part of some college biology courses.
A computer-generated graphic showing a cross-section of red-colored bacteria, with the locations of the protein APOL3 labeled in green.
Human Protein Dissolves Bacterial Membranes
Abby Olena, PhD | Jul 15, 2021 | 4 min read
The protein, apolipoprotein L3, destroys invading microbes by acting as a detergent in the cytosol.
Beyond Film: Laboratory Imagers
Jorge Cortese | Apr 1, 2002 | 9 min read
Years ago, researchers had only one data-imaging option: autoradiography. These scientists tagged samples—whether nucleic acid, protein, cell, or tissue—with radioactive labels, and captured images on film. Safety concerns, convenience, and sensitivity, spurred the development of alternative techniques, and today, researchers can choose from a range of options, including fluorescence, chemifluorescence, and chemiluminescence, in addition to autoradiography. Fluorescence occurs when
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.
Fluorescent Labeling Offers Flexibility Without Radioactivity
James Kling | Apr 13, 1997 | 9 min read
There is a war going on to win over the hearts and minds of molecular biologists: Radioactive isotopes-long the gold standard for tagging and later detecting RNA and DNA strands- are being challenged by a new generation of fluorescent labels that promise greater flexibility with fewer disposal problems. SEQUENCE DETECTION SYSTEM: Perkin-Elmer’s ABI Prism 7700 system uses a probe with a reporter and a quencher dye attached to it. With 14C, 32P, 125I, 3H, or some other radioactive atom bui
Better Understanding Of Cell's Life Eases Culturing
Ricki Lewis | Nov 13, 1994 | 10+ min read
"Lots of companies come out with media or reagents for this or that, and make a big splash, but they're all basically derivatives of traditional products," says Hayden Coon, a former National Institutes of Health re-searcher who is the founder of Human Cell Therapies Inc. of Chebeague Island, Maine. Advanced Biotechnologies Inc. Columbia, MD American Qualex Antibodies La Mirada, CA American Type Culture Collection (ATCC) Rockv
Better Understanding Of Cell's Life Eases Culturing
Ricki Lewis | Nov 13, 1994 | 10+ min read
"Lots of companies come out with media or reagents for this or that, and make a big splash, but they're all basically derivatives of traditional products," says Hayden Coon, a former National Institutes of Health re-searcher who is the founder of Human Cell Therapies Inc. of Chebeague Island, Maine. Advanced Biotechnologies Inc. Columbia, MD American Qualex Antibodies La Mirada, CA American Type Culture Collection (ATCC) Rockv
Preventing Cancer
Ricki Lewis | Sep 21, 2003 | 9 min read
Attenuating or preventing cancer begins with understanding how the deviation starts. While molecular biologists uncover the errant signals that subvert cells, epidemiologists close in on environmental triggers--which are, for now, easier to target. Cancer prevention strategies against long-known culprits are pervasive, yet mostly passive, such as admonitions to avoid smoking, sunning, and obesity. Efforts, however, span several levels, from the World Health Organization's Framework Convention
Distinguishing Th1 and Th2 Cells
Jeffrey Perkel | May 13, 2001 | 10+ min read
Reagents That Distinguish Th1 and Th2 cells Courtesy of R&D SystemsSchematic representation of cytokines influencing the development of antigen-activated naive CD4+ T cells into Th1 and Th2 cells. Editor's note: Although individual techniques are associated with specific researchers in this article, it should be noted that these investigators commonly use several different techniques to analyze T lymphocyte populations. The human body is constantly under siege. It must defend itself fr

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