Showing posts with label anti-malarial. Show all posts
Showing posts with label anti-malarial. Show all posts

Tuesday, August 31, 2010

A new treatment

A new anti-malarial drug may soon progress to clinical trials. This new treatment "is made from simple organic molecules and will be cheaper to mass produce compared to existing therapies."

Malaria is widespread and deadly. Many of the nearly 250 million people who contract the malaria parasite each year do not have access or cannot afford adequate treatment. Drugs that are easy and cheap to produce and distribute may save many of the nearly one million lives that are lost each year due to malaria infection.

With the goal of easing the cost of malaria eradication on poor countries and individuals, the research "team at Liverpool" has "created a synthetic drug based on the chemical structure of artemisinin, an extract of a Chinese herb commonly used in malaria treatment. The new drug, which can be taken orally, is more potent than naturally derived artemisinin."

"Malaria affects the world's poorest countries and hospitals are unable to afford expensive treatments. The problem with current artemisinin-based therapies is their limited availability, poor oral absorption and high cost. We have created a new drug that is easily absorbed by the body, chemically stable and highly potent. It is made from very simple organic materials and therefore will be more cost-effective to mass produce than current therapies," says Professor Paul O'Neill.

Artemisinin is known to interact with a substance inside parasite-infected red blood cells, causing a chain of events that destroys malaria. The treatment, however, is difficult to mass produce and can be chemically unstable in the body. Scientists have now found a way of creating the most reactive part of artemisinin synthetically and fusing it with a cage-like structure made of organic molecules to make the drug more chemically stable. The stability of the chemical structure in the body makes the drug last longer, reducing the chance of the parasite reappearing.


Source:
University of Liverpool (2010, August 16). New drug treatment for malaria?. ScienceDaily. Retrieved August 31, 2010, from http://www.sciencedaily.com­ /releases/2010/08/100816095715.htm

Wednesday, March 3, 2010

Anti-malarial treats cancer

"Can a drug that has been used to treat malaria for years possibly be used to treat breast cancer before it becomes invasive? That's what researchers at George Mason University's Center for Applied Proteomics and Molecular Medicine (CAPMM) and Inova Breast Care Institute (IBCI) are trying to prove." We already know that artemisinin may target and kill cancer cells in breast-cancer patients, but now it appears that chloroquine, a drug commonly administered to treat malaria, may also treat cancer.

In a three-year clinical trial, researchers "will test the effectiveness of the anti-malarial drug chloroquine in treating 90 women with ductal carcinoma in situ (DCIS), a type of breast cancer in which the cancer cells start in the milk ducts but have not yet become invasive and spread in the breast. Once the cancer cells start to spread in the breast and throughout the body, the condition is considered invasive and can often be fatal."

Breast cancer is the most common form of cancer in women (American Cancer Society). In 2009, 254,650 patients were diagnosed. This treatment will "prevent breast cancer cells from becoming deadly by killing pre-invasive cancer cells". A novel therapy that uses chloroquine, which has been used to treat malaria in the past, may prevent deaths from breast cancer in the near future.

Source:
George Mason University (2010, March 2). Trial launched to test new treatment for pre-invasive breast cancer. ScienceDaily. Retrieved March 3, 2010, from http://www.sciencedaily.com¬ /releases/2010/03/100302123120.htm