Key to aging immune system: Discovery of DNA replication problem “We have found the cellular mechanism responsible for the inability of blood-forming cells to maintain blood production over time in an old organism, and have identified molecular defects that could be restored for rejuvenation therapies,”
Sperm Penetration Tests http://www.webmd.com/infertility-and-reproduction/sperm-penetration-tests Sperm penetration tests check to see whether a man’s sperm can move through cervical mucus and the fallopian tubes to join with (fertilize) an egg. This test is usually done when a couple is having trouble becoming pregnant (infertility). There are different sperm penetration tests. The sperm mucus penetration test checks
Got Silk? http://www.nsf.gov/news/special_reports/science_nation/spidersilk.jsp http://www.bbc.co.uk/news/science-environment-16554357 Researchers are spinning spider silk from goats’ milk Spider silk and goat milk–what could possibly be the connection? Let’s start with the spiders. Humans love spider webs, but aren’t so crazy about their builders. While spiders make some people flinch, there’s no escaping the appreciation for their masterful web construction. “There’s
http://www.abc.net.au/science/articles/2006/06/02/1644154.htm Back in 1997, a rather bizarre photograph suddenly became very famous. It showed a totally hairless mouse, with what appeared to be a human ear growing out of its back. That photograph prompted a wave of protest against genetic engineering, which continues today. But there was absolutely no genetic engineering involved in getting that
http://news.bbc.co.uk/2/hi/sci/tech/2183200.stm By Helen Briggs BBC News Online science reporterMonday, 12 August, 2002, 09:04 GMT 10:04 UK Cloned calves that produce human antibodies in their blood have been born in the United States. The four cows have extra DNA which contains the genes for the part of the human immune system that makes disease-fighting antibodies. Scientists believe
