Archive for October, 2011

University of Michigan launches two satellites into space on back of NASA rocket

Saturday, October 29th, 2011

With 30 seconds to go before two satellites they built were due to rocket into space, the 20 students or so gathered early this morning in a University of Michigan lab grew quiet.

There wasn’t a large celebration when the rocket blasted off.

Instead, there was a sense of fulfillment in the lab and an acknowledgment that the work wasn’t over – the satellites would soon be deployed in space and need monitoring.

U-M put two satellites into space this morning – M-Cubed and RAX. They hitched a ride on a NASA rocket and satellite. U-M was one of three universities across the nation to send satellites into space on this rocket.

M-cubed, which about the size of a square tissue box, – 10 cm by 10 cm by 10 cm – is designed for taking pictures of Earth. But more importantly, it is also flying a prototype of a specialized computer that private industry is testing for future space flights. RAX, which is about three times the size of M-Cubed, will be conducting a variety of experiments and measurements of the atmosphere.

U-M has a long tradition of being involved in the space program. It currently has one satellite in orbit. It has funding for two more missions.

It’s taken four years to build M-Cubed. Ken Gmerek, now a senior and the project manager, joined the team the second week of his freshmen year.

“I’m excited and a little nervous,” he said about 5:40 a.m. this morning, eight minutes before the launch. “I’m also a little relieved to get to this point. It’s been a long time coming.” (more…)

University of Colorado researchers look to pythons for clues to heart health

Saturday, October 29th, 2011

DENVER—Python blood may hold the road map to effective treatments for human heart disease, according to a new biomedical study by University of Colorado researchers.

Researchers at CU’s Biofrontiers Institute have discovered three key fatty acids in python blood that, when reproduced, have the same positive effect on mammal heart growth as that observed in pythons.

A day after a Burmese python feeds, the mass of the snake’s heart increases by 40 per cent and the triglycerides in its bloodstream grow 50 times beyond normal levels. Since triglycerides are the main component in natural fats and oils, this results in massive amounts of fatty acids circulating through the python’s bloodstream.

“Fats in blood is usually associated with bad things in humans,” lead researcher Leslie Leinwand said. “We wanted to find out how the python manages to not have something toxic happen to it.”

The researchers discovered no evidence that the fats in the python’s blood deposited in the reptile’s heart. In fact, they found an increase in activity of a key enzyme that protects the heart from damage.

The research team was able to identify the three key fatty acids that could be used to mimic the chemical makeup of a python’s post-feeding blood. (more…)