hiv

Benjamin Franklin once advised a friend to take older women to bed because, figuratively speaking, "in the dark all cats are gray." Well, not these kittehs.

Researchers in the U.S. and Japan have developed green-glowing kittens with resistance to the feline version of AIDS, which may help work on AIDS research in humans.

In a study published in Nature Methods, researchers from the Mayo Clinic and Yamaguchi University took a genome approach to producing cats that are apparently resistant to feline immunodeficiency virus (FIV), a deadly condition that attacks infection-fighting T-cells as AIDS does.

The researchers including Mayo Clinic molecular biologist Eric Poeschla inserted genes into feline eggs before sperm fertilization. They added a gene for a rhesus macaque protein, known as a "restriction factor," that can prevent infection by FIV, and a jellyfish gene for tracking the cells that also makes the kitties glow a spooky green.

When cells were taken from the cats and exposed to FIV, they were found to be resistant; the animals themselves will also be exposed to the virus in the future. … Read more

A professor of civil and environmental engineering at Michigan State University has unveiled a device that, in conjunction with an iPod Touch or Android-based tablet, analyzes microRNAs to detect cancer quickly and affordably.

Syed Hashsham says his Gene-Z device, which he demonstrated this week at the National Institutes of Health's first Cancer Detection and Diagnostics Conference, in Bethesda, Md., could dramatically improve early cancer detection in developing nations that have few, if any, cancer screenings services.

"Until now, little effort has been concentrated on moving cancer detection to global health settings in resource-poor countries," Reza Nassiri, the … Read more

Skype for Android expands two-way video calling to more phones, Apple's Find My Mac makes its debut on the developer testing version of iCloud.com, and Sony delays the launch of the PlayStation Vita handheld console in the U.S. and Europe.

Links from Thursday's episode of Loaded:

Drug companies have long used plants to produce pharmaceuticals--and tobacco plants, perhaps ironically, have been explored for their potential role in fighting such things as cancer, cavities, scorpion venom, and more.

The latest big news, announced at a press conference in London this morning, is that U.K. regulators have, for the first time, approved a human clinical trial of a monoclonal antibody produced using genetically modified tobacco plants.

Monoclonal antibodies are made from identical immune cells that have been cloned from a unique parent cell to fulfill a specific role. The roots of this idea, which date back more … Read more

It's inspiring to visit a university laboratory and see fresh-faced college students working on experiments that may some day have huge impacts on our lives. And on our trip to the University of California at Berkeley this week we found just that. In the campus' Stanley Hall, there's a team of researchers working on a new blood-analysis chip or Self-powered Integrated Microfluidic Blood Analysis System (SIMBAS), that can potentially detect hundreds of diseases at once in a matter of minutes.

During my campus visit with cameraman and editor Jared Kohler, we interviewed bioengineering Professor Luke Lee and post-doctoral … Read more

Researchers from Harvard and MIT have designed a microfluidic device that uses porous "forests" of carbon nanotubes to detect individual cancer cells or viruses such as HIV in a blood sample.

Harvard's Mehmet Toner, MIT's Brian Wardle and colleagues improved upon a device developed four years ago that had forests of silicon posts to detect target cells.

By making the posts out of porous carbon nanotubes, which are cylinders of carbon atoms, and attaching various antibodies to them, sample fluid can flow through and around the "trees," increasing the chances of detection.

The antibodies will bond to targets chemically, but the device also works mechanically by trapping particles depending on the distance between the trees. The forest has 10 billion to 100 billion carbon nanotubes per square centimeter, and is 99 percent air. … Read more

In February, the uber trendy Icecreamists boutique in London began serving a scoop of ice cream straight from the supple breasts of London mother Victoria Hiley. Her milk was screened at what parlor founder Matt O'Connor calls a "leading medical clinic" before being pasteurized and served in a martini glass with lemon zest and vanilla pods for 14 pounds, or about $22.50.

Not for long. News of the unusual dessert, dubbed Baby Gaga, swept across the Interwebs, and when two people complained to Westminster Council (perhaps notably, both were men), officers removed the product from the … Read more

Researchers have found that homeless youth in Los Angeles are using social-networking sites to find sexual partners.

Sean Young from UCLA and Eric Rice from the University of Southern California interviewed 201 homeless youth, recruited at a drop-in agency in LA, about social-networking usage as well as sexual behaviors. And while the researchers are touting one finding--that the use of social networks is associated with increased knowledge of STD prevention--there is no getting around the other main finding: "the use of these networks for partner finding is also associated with an increase in sexual risk behaviors."

In other … Read more

Canadian firm BioLytical received FDA approval this week for the sale of its Insti HIV Rapid Antibody Test in the United States.

The test, which, at 60 seconds, will be the fastest-working on the U.S. market (others tend to take between 10 minutes and 20 minutes) is already available in more than 50 countries. In Canada's Ontario province, the kits have been available since they were first commercialized in 2006, and in British Columbia, where BioLytical is based, health authorities plan to use them for the new $48 million pilot project called Seek and Treat for the prevention … Read more