Hello,

We noticed you're browsing in private or incognito mode.

To continue reading this article, please exit incognito mode or log in.

Not an Insider? Subscribe now for unlimited access to online articles.

Emily Singer

A View from Emily Singer

Transparent Fish Provide a Window into Clogged Arteries

Genetically engineered zebrafish could provide a quick way to test new drugs to prevent dangerous plaque buildup in the heart.

  • November 23, 2011

As you gorge on creamy potatoes and buttery pie this Thanksgiving, the effect on your arteries probably isn’t top of mind. But for these newly engineered zebrafish, created by researchers at the University of California, San Diego, the effect of cholesterol is impossible to ignore. Researchers can directly observe the accumulation of LDL, or bad, cholesterol in the transparent fish.

This zebrafish was engineered to carry a fluorescent antibody that binds to bad cholesterol.
Credit: UC San Diego School of Medicine

During artherosclerosis, high levels of LDL cholesterol leads to plaque buildup in the arteries. If the plaque ruptures, it can trigger a blood clot, heart attack, or stroke. The transparent fish allow researchers to study the process more closely and test the effects of different drugs much more quickly than they can with other animals used to study heart disease.

They found that treating fish fed a high cholesterol diet with an antioxidant drug reversed the buildup of bad cholesterol just as well as putting the animals on a low-cholesterol diet.

“We saw the results in just 10 days working with the zebrafish model. A similar experiment in mice took six months to complete,” said first author Longhou Fang, in a press release from the university.The research will be published in the December 1 issue of the Journal of Clinical Investigation.

To create the fish, researchers inserted a gene for an antibody that binds to certain forms of LDL cholesterol. The genetic insert also carries the gene for green fluorescent protein, making the antibody glow.

Cut off? Read unlimited articles today.

Become an Insider
Already an Insider? Log in.
More from Rewriting Life

Reprogramming our bodies to make us healthier.

Want more award-winning journalism? Subscribe and become an Insider.
  • Insider Plus {! insider.prices.plus !}* Best Value

    {! insider.display.menuOptionsLabel !}

    Everything included in Insider Basic, plus the digital magazine, extensive archive, ad-free web experience, and discounts to partner offerings and MIT Technology Review events.

    See details+

    Print + Digital Magazine (6 bi-monthly issues)

    Unlimited online access including all articles, multimedia, and more

    The Download newsletter with top tech stories delivered daily to your inbox

    Technology Review PDF magazine archive, including articles, images, and covers dating back to 1899

    10% Discount to MIT Technology Review events and MIT Press

    Ad-free website experience

  • Insider Basic {! insider.prices.basic !}*

    {! insider.display.menuOptionsLabel !}

    Six issues of our award winning print magazine, unlimited online access plus The Download with the top tech stories delivered daily to your inbox.

    See details+

    Print Magazine (6 bi-monthly issues)

    Unlimited online access including all articles, multimedia, and more

    The Download newsletter with top tech stories delivered daily to your inbox

  • Insider Online Only {! insider.prices.online !}*

    {! insider.display.menuOptionsLabel !}

    Unlimited online access including articles and video, plus The Download with the top tech stories delivered daily to your inbox.

    See details+

    Unlimited online access including all articles, multimedia, and more

    The Download newsletter with top tech stories delivered daily to your inbox

/3
You've read of three free articles this month. for unlimited online access. You've read of three free articles this month. for unlimited online access. This is your last free article this month. for unlimited online access. You've read all your free articles this month. for unlimited online access. You've read of three free articles this month. for more, or for unlimited online access. for two more free articles, or for unlimited online access.