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immediate hypersensitivity
immediate hypersensitivity

... It is the most common atopic disorders. It results from the reaction of airborne allergens with sensitized mast cells in the conjunctivae and nasal mucosa to induce the release of pharmacologically active mediators from the mast cells. These mediators then cause localized vasodilation and increased ...
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... of these proteins. In fact, there are so many kinds of molecules in cell membranes that scientists describe their understanding of the membrane as the “fluid mosaic model” of membrane structure. As you will see, some of the proteins form channels and pumps that help to move material across the cell ...
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Extracellular O2 Probe
Extracellular O2 Probe

... and is also a major mechanism of drug-induced toxicity. Oxygen consumption is one of the most informative and direct measures of mitochondrial function. Traditional methods of measuring oxygen consumption are hampered by the limitations of low throughput and high complexity. The Extracellular O2 pro ...
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Full Text - Verlag der Zeitschrift für Naturforschung
Full Text - Verlag der Zeitschrift für Naturforschung

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ECX analysis
ECX analysis

Presentation - people.vcu.edu
Presentation - people.vcu.edu

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Biological Effects of Electromagnetic Fields
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... chemically reactive free radicals at 50 and 60 Hz electric power frequencies. In McLauchlan's model, very low static magnetic fields cause triplet pairs to break and form singlets. But as the field is increased, typically to a level of about 8 mT, two of the three triplet states become entirely deco ...
Biological Effects of Electromagnetic Fields
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... chemically reactive free radicals at 50 and 60 Hz electric power frequencies. In McLauchlan's model, very low static magnetic fields cause triplet pairs to break and form singlets. But as the field is increased, typically to a level of about 8 mT, two of the three triplet states become entirely deco ...
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Rab3GEP Is the Non-redundant Guanine Nucleotide
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DAT Biology - Problem Drill 02: The Cell Question No. 1 of 10
DAT Biology - Problem Drill 02: The Cell Question No. 1 of 10

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Extracellular matrix



In biology, the extracellular matrix (ECM) is a collection of extracellular molecules secreted by cells that provides structural and biochemical support to the surrounding cells. Because multicellularity evolved independently in different multicellular lineages, the composition of ECM varies between multicellular structures; however, cell adhesion, cell-to-cell communication and differentiation are common functions of the ECM.The animal extracellular matrix includes the interstitial matrix and the basement membrane. Interstitial matrix is present between various animal cells (i.e., in the intercellular spaces). Gels of polysaccharides and fibrous proteins fill the interstitial space and act as a compression buffer against the stress placed on the ECM. Basement membranes are sheet-like depositions of ECM on which various epithelial cells rest.The plant ECM includes cell wall components, like cellulose, in addition to more complex signaling molecules. Some single-celled organisms adopt multicelluar biofilms in which the cells are embedded in an ECM composed primarily of extracellular polymeric substances (EPS).
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