Scientists are a step closer to curing infertility in humans, after Chinese scientists created functioning mice sperm out of embryonic stem cells in a lab, which was then successfully injected into female mice, leading to a healthy offspring.This success in mice may in the future make it possible, at least in theory, for doctors to turn human skin cells into sperm that could carry DNA to the offspring.“If proven to be safe and effective in humans, our platform could potentially generate fully functional sperm for artificial insemination or in vitro fertilization techniques,” according to co-senior study author Jiahao Sha from Nanjing Medical University.To get a successful result, scientists mixed the embryonic stem cells of mice with a chemical mixture that caused the cells to turn into primordial germ cells. After that, the germ cells were exposed to testicular cells and testosterone hormones, among others. The final result was the transformation of the germ cells into “sperm-like cells with correct nuclear DNA and chromosomal content,” according to the published study.The main reason this change was possible is connected to the fact that germ cells are able to take on the characteristics of other types of cells.The next stage of the process was to inject the sperm-like cells into mouse egg cells, creating embryos that were later put into female mice.One of the unique aspects of the study was that the resultant baby mice were not only healthy, but able to mate and successfully reproduce.A total of 379 eggs were injected with this type of sperm, resulting in the creation of nine baby mice.The new technique is currently being tested in monkeys, Qi Zhou told AP.
FacebookTwitterEmailPrintFriendly分享An elderly Kenai Peninsula woman was scammed out of $1,400 by an email on Wednesday. She reportedly sent the $1,400 to an unspecified location in Asia via Western Union. Michelle Tabler with the Better Business Bureau said con artists often target the elderly. No suspect information on the August 12 phone scam is known at this time. She reported that she received an email that stated her Microsoft program was experiencing problems and if she sent the cash it would be corrected. Tabler: “First of all there’s never a reason to wire money, ever, really.” Alaska State Trooper investigation found the phone number came back to an unknown location in California. Just after 3 pm August 12, the 69-year-old victim called Alaska State Troopers to report the scam.
iStock/Thinkstock(WASHINGTON) — Navy investigators said Friday they believe 27 individuals were involved in criminal activity in posting non-consensual nude photos of female Marines online. Of those, 15 are active duty U.S. military personnel, they added — 14 in the Marine Corps and one in the Navy.Gen. Glenn Walters, assistant commander of the Marine Corps, and Andrew Traver, director of the Naval Criminal Investigative Service (NCIS), said that while the 27 individuals are believed to have participated in criminal activity, the majority of the posts on social media did not rise to a criminal level.Investigators looked at approximately 150 different websites containing the illicit photos. Explicit photos of female Marines were shared on a Facebook page called “Marines United,” along with other websites like Tumblr, investigators said.Two Marines have been given non-judicial punishment for making inappropriate comments on Facebook, but the investigators said other cases are still “working their way through the pipe.”Using facial recognition software, they were able to identify some of the individuals in the photos, but many images were cropped beneath the head.Additionally, 25 victims submitted photos to investigators. A “handful” of those matched photos on the sites NCIS has sourced.“We have also learned that this is not a ‘nude photo issue,’ and I would like to highlight that specifically and quash any victim blaming that exists out there,” Walters said.“This is about actions that are disrespectful to or intended to harass, demean, and degrade Marines,” he continued. “These actions are attacks on our core values, unit cohesion, and good order and discipline. We are committed to holding those who commit such acts appropriately accountable.”Walters admitted that the Marine Corps is struggling to have the photos removed from internet sites, since anyone can copy and upload photos. He called removing them “the question of the hour.”Members of the Marines United Facebook group, about 30,000 people, shared many of the nude photos. But only a small percentage of those 30,000 actually had access to them, investigators said.An “overwhelming number” of the posts were on sites that were marked “secret and private,” requiring an invitation and vetting for users to gain access.Testifying before Congress last month, Marine Corps Commandant Gen. Robert Neller answered tough questions from U.S. senators, calling the actions of Marines engaged in the cyberbullying “truly disturbing and unacceptable” and saying investigators were looking into the case.Neller acknowledged before the Senate last month that the sharing of explicit photos online is linked to a broader cultural problem in the Marine Corps that must be addressed.“I’m responsible,” he said. “I’m the commandant. I own this … we’re going to have to change how we see ourselves and how we do, how we treat each other. That’s a lame answer, but ma’am, that’s the best I can tell you right now. We’ve got to change and that’s on me.”Marine Corps officials have said they are considering ways to improve gender integration during boot camp and in Marine Corps’ culture, including social media training.“We have to commit to get rid of this perversion to our culture. Enough is enough,” Neller said, adding that he believes this scandal is “not indicative of the great majority of Marines.”Commanders received a handbook on Tuesday with updates to social media use guidelines and an outline of the various punishments available to them.“We have developed information sharing and reporting procedures that will help ensure accountability and proper tracking of instances of online misconduct,” Walters said. “Specifically, we now have a mechanism that allows NCIS to turn over investigative material on minor offenses or non-criminal actions to a fusion cell within the Task Force. This information is vetted by a cross-functional team and turned over to the appropriate command authorities for action as the Commander deems appropriate.”Copyright © 2017, ABC Radio. All rights reserved.Powered by WPeMatico Related