Word: phospholipids
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Dates: during 1970-1979
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...Lung. Gluck's research team discovered that the fetal lung generally matures around the 35th week of pregnancy. This development is signaled by a change in the amniotic fluid surrounding the fetus. At that point, the level of a phospholipid known as lecithin usually rises sharply and surpasses the level of another lipid, sphingomyelin. To determine if this has occurred normally, the Gluck test uses transabdominal amniocentesis, a technique that involves inserting a sterile needle through the abdomen into the womb, drawing off a sample of amniotic fluid and measuring the lipid levels...
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