Eventually, Alavi says, physicians might be able to use the 2-metre-long device to see if certain drugs helped to treat the artery-clogging disease.
Injecting the tracer into people suspected of having a bacterial infection could highlight where in the body the bacteria are concentrated. An essential round-up of science news, opinion and analysis, delivered to your inbox every weekday. Advanced search.
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Very little sugar was translocated to the primary leaf opposite the treated petiole or to the growing tip of the stem. Of the small amount of sugar that was translocated upward the bulk accumulated in the younger rather than the older trifoliate leaf. When glucose-C 14 or fructose-C 14 were used the radioactivity in the stem decreased logarithmically from the point of introduction. The downward translocation of both sugars was impeded at the nodes.
These hexoses were translocated both upward and downward past killed sections of stems. When sucrose-C 14 was used the radioactivity in the stem decreased linearly from the point of introduction. Sucrose was not translocated either upward or downward past killed sections of stems.
This rapid cell division requires a large amount of fuel, and that fuel is the sugar in our body. However, postings on the Internet have created misleading and inaccurate conclusions about the relationship between cancer and sugar intake. In conclusion, radioactive fucose is the precursor of choice when experiments on glycoprotein synthesis and secretion are designed. Sorry, your blog cannot share posts by email. A to Z List of Cancer Drugs. The nature of trophallaxis in honeybees. First, we established an intake ratio, which describes the gap between the bee ingesting the highest amount of food and the bee ingesting the lowest quantity of food in the cage.
The minimum rate of translocation of both glucose and sucrose was the same. Webb , P.
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A radioactive form of glucose (sugar) often used during a positive emission tomography (PET) scan, a type of imaging test. In PET, a small amount of radioactive. The radioactive sugar can help in locating a tumor, because cancer cells take up or absorb sugar more avidly than other tissues in the body.
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Quaker Oats funded the radiation studies for commercial reasons. Like this article? Comment on this Story.