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Saturday, July 5, 2008
Here's the script!!! (Starting: Good afternoon to all! We are from group 1 and i am, I am Naylin, I am Allison and i am ma.) Induction: Peng: In 1928, bacteriotogist Alexander Fleming made a chance discovery from an already discarded, cantaminated Petri dish. The mold that had contaminated the experiment turned out to contain a powerful antibiotic, pencillin. However, though Fleming was credited with the discovery, it was over a decade before someone else turned penicillin into the miracle drug for the 20th century. Naylin: Alexander Fleming was born in 1881 at Lochfield, a small town in Ayrshire, Scoutland. After completing his education at Regent Street Polytechnic, London in 1897, he took an office job for a few years. In 1901, he quit his job and went to St. Mary hospital to study medicine. He then worked in almroth Wright’s research team as a researcher assistant with a sting interest in beateriology. Allison: In 1928, before he had left on vacation, Fleming had piled a number of his Petri dished to the bench so that Stuart R. Craddock could use his workbench when he was away. Madeline: How did this petri dish almost get cleaned before being noticed? Peng: Back from vacation, Fleming was sorting through the long unattended stacks to determine which ones could be salvaged. Many of the dishes had been contaminated. Fleming placed each of these in an ever-growing pile in a tray of Lysol. Naylin: The chance discovery Allison: In 1922, Fleming made an inportant discovery, Iysozyme. While working with some bacteria, Fleming's nose leaked, dropping some mucus onto the dish. The bacteria disappeared. Fleming had discovered a natural substance found in tears and nasal mucus that helps the body fight germs. Fleming now realized the possibility of finding a substance that could kill bacteria but not adversely affect the human body. Madeline: While picking up one particular dish to show Pryce, Fleming noticed something strange about it. While he had been away, a mold had grown on the dish. However, this particular mold seened to have killed the Staphylococcus aureus that had been growing in the dish. Fleming realized that this mold had potential. Peng: But where did the mold come from? Naylin: Most likely, the mold came from La Touche's room downstairs. La Touche, who had his office beow Fleming's , had been collecting a large sampling of molds for John Freeman, who was researching asthma and it is likely that some floated up to Fleming's Lab. Allison: What was that mold? Madeline: After discussing the mold with mycologist. La Touche, they determined the mold to be a penicillium mold. Fleming then cakked the active antibacterial agent in the mold, penicillin. Peng: What does Penicillin does then? Naylin: Penicillins may be used to treat infections such as urinary tract infections, septicemia, meningitis, intra - abdominal infection, gonorrhea, syphilis, pneumonia, respiratory infections, ear, nose and throat infections, skin and soft tissue infections . Allison: Penicillins are used to prevent bacterial infection before, during and after surgery and to prevent Group A streptococcus infections in people with a history of rheumatic heart disease. Madeline: Penicillins work best when there is a constant amount circulating in the body. Therefore, it is important not to miss a dose. Also, it's best to take doses at evenly spaced intervals, both day and night. Thank You!!!! any feedback?pls sae...gtg 886
7:59 AM
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