CNN news 2014-11-11 加文本

cnn news 2014-11-11

CARL AZUZ, cnn ANCHOR: Fridays are awesome! And after a week of laryngitis it feels good to be able to say that like that. Thanks for

sticking with me. I`m Carl Azuz for cnn STUDENT NEWS.

First up, a U.S. airstrike in Syria. But this attack wasn`t aimed at ISIS. It was aimed at Khorasan, another terrorist group operating in the war-torn

nation. The attack was on Wednesday night, the target was a vehicle that the U.S. believed was carrying a bomb maker from France. Considered a very

dangerous operative, he joined up with Khorasan terrorists in Syria.

U.S. officials don`t know if he was killed. They think he was. But they say they are making progress against ISIS and Khorasan in Syria.

The has targeted Khorasan before, it`s made up of former members of the al Qaeda terrorist group, and the U.S. believes it`s plotting new attacks

against Western countries, including America.

UNIDENTIFIED MALE: Time for "The Shoutout." Cytology is the study of what? You know what to do. Is it resources? Cultures? Cells or blood.

You`ve got three seconds, go!

A cytologist studies living cells, and may focus on those that cause disease. That`s your answer and that`s your shoutout.

In one way cytologist do that is by looking at blood samples. Those can indicate how organs are functioning, what disease people may have. From

heart disease to pre-diabetes to cancer. But blood tests can take days or weeks to yield results.

And news came out recently that a technology company is experimenting with nanoparticles, trying to fit a test into a pill.

UNIDENTIFIED FEMALE: Google X Labs is creating a pill aimed at detecting cancer and other conditions. Here is how it would work: tiny particles

from the pill are programmed to spread throughout the body and latch on to abnormal cells. A wearable device tracks the particles in theory to find

out if cancer or other diseases are present, monitoring would be on a daily basis, and information can be downloaded by doctors. This could make many

blood and urine samples obsolete.

Google has come under fire for privacy and security in the past, but they say they won`t be handling individual data. A partner will do that.

If this sounds too good to you, don`t get too excited: it could take years for the technology to be ready if ever.

AZUZ: And, of course, blood tests alone can`t diagnose everything. They may not be able to confirm mental illness, for example. Though they may

help doctors find something physical that`s causing it.

To diagnose bipolar disorder, doctors can use a number of tests: a physical exam, bloodwork, a psychological exam and then have patients chart

their moods.

SANJAY GUPTA, cnn CORRESPONDENT: Bipolar disorder is a mental illness that around six million Americans suffer from. I will tell you, it`s really

hard to know the numbers, because sometimes people don`t seek help.

Bipolar depression, manic depression, these are terms that are all meaning the same thing: the manic part of it thinks of that as the highest of

highs in your life. You feel great, you may be more reckless (INAUDIBLE). The depressed part of it is sort of the lowest of the lowest.

I want to try and simplify this for you, because I find this really fascinating.

Well, here`s the frontal lobes of the brain, and deepened here is an area of the brain called the amygdala. Think of the frontal lobes of the brain

as your judgment area of the brain, but also your brakes.

The area of the brain that tells you to slow down, to stop, think a little bit before you do something. And think of the amygdala as the emotional

center on the brain. So, someone who is manic, typically has no brakes, frontal lobes are not really active, and the amygdala is red hot meaning

it`s super-active. Things that you think you immediately do, it may lead to wild bursts of creativity with unlimited energy.

That`s often time at the manic phases. Depression, think about this as exactly the opposite: The frontal lobes are now turned all the way up.

That means everything is just stopped. Nothing is getting out. The amygdala turned low. It means you have just no emotion. So, you are

apathetic, you don`t want to get out of the house, you simply don`t want to do anything.

That` what`s happening in the brain with someone who has manic depression.

The episodes can last hours, they can last days, they can last weeks. People can go through cycles over a time. So, within a year you could have

four cycles, from mania to depression and so forth.

Typically, people really start to develop symptoms (INAUDIBLE), teens, early 20s. But half of people are diagnosed before the age of 25.

Many people can get good treatment for bipolar depression. And I think it`s fair to say that it`s not easy. First of all, it can be challenging

to get the diagnosis. Second of all, it can be challenging to try all medications, see if they are working. But the key is ultimately finding a

medication that`s more of the mood stabilizer. You don`t want to give someone an antidepressant who could possibly go into a manic phase. That

could just worsen the mania. It`s more about giving mood stabilizations, to cut down on the intensity of the mania and the depression.