Description: It was once believed that women are born with all the eggs they’ll ever have. In a study published in Nature Medicine, Jonathan Tilly, professor of obstetrics, gynecology, and reproductive biology found that stem cells taken from a women’s ovaries can be used to create new eggs or oocytes, a potentially groundbreaking discovery for fertility treatments.
Using donated frozen ovaries from doctors in Japan who treat women seeking gender reassignment, Tilly’s team isolated egg-producing stem cells in human ovaries using new cell-sorting techniques to coax them into developing oocytes. Building on research by Chinese scientists, they then fished out a protein believed to sit on the surface of only those stem cells and tracked them by inserting a gene into the cells which caused them to glow green. If the cells produced eggs, the eggs would also glow green. The cells were then injected into biopsied human ovarian tissue that was then grafted beneath the skin of mice. Within 7 to 14 days, the graft had produced a budding of oocytes, with some of the eggs glowing with the fluorescent tag, proving that they came from the stem cells. But others did not, which suggested they were already present in the human tissue before the injection.
“The discovery opens the door for development of unprecedented technologies to overcome infertility in women. If the process can be guided correctly, there is a chance that sometime in the future, we might get to the point of actually having an unlimited source of human eggs, which would rewrite human-assisted reproduction”, Tilly said in a press release.
Description: Nowadays, almost everyone is equipped with a mobile phone, mainly because mobile phones offer a fast and convenient way of communication. It has become a standard appliance for most persons. However, a new study reports that mobile phones are not completely safe and their use has occasionally resulted in serious diseases. Because of this, some consumer advocates argue that mobile phones should not be so readily accepted as a standard appliance until they can be certified to be completely safe.
Description: The pressure on Italy's 257 jails has been increasing rapidly. These jails are old and overcrowded. They are supposed to hold up to 43000 people-9000 fewer than now. San Vittore in Milan, which has 1800 inmates is designed for 900.The number of foreigners inside jails is also increasing.The minister in charge of the prison feels tensions may snap, and so has recommended to the government an amnesty policy.
Description: My grandfather says that most of the new clothes that he has purchased have fallen apart in a very short time. He also points out that most of the vintage clothes that he bought are still in excellent condition, even thought they were more than 15 yrs old when he bought them. So he concludes that clothes made today are inferior in terms of how long they last as compared to vintage clothes.
Description: The company 'Dreams' has been producing most of its products in Costa .The government of Costa has passed a new ruling that states that all workers including that of 'Dreams' will have to be provided with double the wages .Hence the cost of products of company 'Dreams' will increase.
Description: A recent report declaim that 80 percent of the people in this country now report that they know someone who is divorced. But the average divorce rate in this country is 4 percent, which means one out of 25 people should be divorced. So at any specific time if a person knows approximately 50 persons, two or more will very likely be divorced.
Description: Some decisions will be fairly obvious - "no brainers." Your bank account is low, but you have a two week vacation coming up and you want to get away to some place warm to relax with your family. Will you accept your in-laws' offer of free use of their Florida beach front condo? Sure. You like your current employer and feel ready to move forward in career. Will you step in for your boss for three weeks while she attends a professional development course? Of course.