Today's Top Videos: Natural Gas, Alzheimer's & More

A new groundbreaking research that could potentially lead to cure Alzheimer's disease and on how Chesapeake's CEO hopes to move Americans away from "expensive imported oil" to natural gas. Following are today's top videos:

Sirius/XM Complete Merger

“I think the prospects for the combined company are extraordinary. [The 17-month wait has] certainly put the company in limbo for far too long, it certainly had confusion in the marketplace, in retail, particularly, and it also put us on radio silence as far as talking to investors. It took far too long, but I’m glad it’s done.”

--Mel Karmazin, Sirius Satellite Radio, President/CEO

Relief For America’s Energy Crisis

“The report simply captures the great advancements that have been made in drilling technology over the last three to four years. We’ve known for years that we have decades and decades of gas reserves out there. And now going forward, we now know that we have extendibility to that, and we can rely on this fuel to start to move our transportation network away from expensive imported oil, to an American product called natural gas.

--Aubrey McClendon, Chesapeake Energy CEO

Attacking Alzheimer’s

“As you know, Elan has been focused on Alzheimer’s for over 20 years, the scientists that we have are the original scientists. Yesterday, we revealed a short presentation that showed the initial data that we wanted to share with regards to the phase II trial results.”

--Kelly Martin, Elan CEO

Stop Trading, Listen to Cramer!

“I really like the gentleman that was just on about Chesapeake. Natural gas fell far more than oil. Natural gas has actual demand at the $8 level. I think Chesapeke’s really good. His trans-ocean drilling call is really good too. That made a lot of sense to me.”

--Jim Cramer, CNBC’s Mad Money

Maria’s Market Message

The latest economic data from GDP and earnings news from ExxonMobile , are among those things will set the tones for the market on Thursday. It was an encouraging employment data, meanwhile, with an offset in the surge of oil prices, Wednesday. That gave stocks a big boost -– private employers created 9000 jobs in the month of July. The report from ADP employer services surprised analysts who were looking for a decline in the number of jobs created.”

--Maria Bartiromo, CNBC’s Closing Bell