wah baru sadar kalau nama profesor penelitinya adalah Karim Nayernia orang Iran, jadi kemungkinan muslim atau pernah jadi muslim atau ortunya muslim
http://www.ncl.ac.uk/ihg/staff/profile/karim.nayernia http://en.wikipedia.org/wiki/Karim_Nayernia salam, -- wikan On Wed, Jul 8, 2009 at 12:01 PM, Dwi Soegardi<soega...@gmail.com> wrote: > > > Tanda-tanda berakhirnya spesies jantan? :-) > > http://news.bbc.co.uk/2/hi/health/8138963.stm?ls > > Scientists claim sperm 'first' > > How to make human sperm in the lab > > By Fergus Walsh > BBC medical correspondent > > Scientists in Newcastle claim to have created human sperm in the > laboratory in what they say is a world first. > > The researchers believe the work could eventually help men with > fertility problems to conceive. > > But other experts say they are not convinced that fully developed > sperm have been created. > > Writing in the journal Stem Cells and Development, the Newcastle team > say it will be at least five years before the technique is perfected. > > They began with stem cell lines derived from human embryos donated > following IVF treatment. > > The stem cells had been removed when the embryo was a few days old and > were stored in tanks of liquid nitrogen. > > The stem cells were brought to body temperature and put in a chemical > mixture to encourage them to grow. They were "tagged" with a genetic > marker which enabled the scientists to identify and separate so-called > "germline" stem cells from which eggs and sperm are developed. > > The male, XY stem cells underwent the crucial process of "meiosis" - > halving the number of chromosomes. The process over creating and > developing the sperm took four to six weeks. > > Understanding sperm > > The Newcastle team say the sperm were fully mature, mobile sperm and > they have produced a video to back up the research. > > Professor Karim Nayernia at Newcastle University and the NorthEast > England Stem Cell Institute says: "This is an important development as > it will allow researchers to study in detail how sperm forms and lead > to a better understanding of infertility in men - why it happens and > what is causing it.
