Turmeric Fights Devastating Viruses In Humans And Animals
The popular spice turmeric packs more than just flavor — it shows promise in fighting devastating viruses, Mason researchers recently discovered.
Mosquito-borne Rift Valley Fever virus (RVF) is an acute, fever-causing virus that affects domestic animals such as cattle, sheep and goats, as well as humans. Results of the study were published this month in the Journal of Biological Chemistry.
“Growing up in India, I was given turmeric all the time,” says Narayanan, who has spent the past 18 months working on the project. “Every time my son has a throat infection, I give (turmeric) to him.”
There’s more work to do before curcumin-based pharmaceuticals become commonplace, Narayanan emphasizes. She plans to test 10 different versions of curcumin to determine which one works the best. She also intends to apply the research to other viruses, including HIV.
Narayanan has long wanted to explore the infection-fighting properties of turmeric, in particular its key component, curcumin. “It is often not taken seriously because it’s a spice,” she says.
But science is transforming the spice from folk medicine to one that could help a patient’s body fight off a virus because it can prevent the virus from taking over healthy cells. These “broad-spectrum inhibitors” work by defeating a wide array of viruses.
Photo by Sanjay Acharya from Wikipedia Commons
“Curcumin is, by its very nature, broad spectrum,” Narayanan says. “However, in the published article, we provide evidence that curcumin may interfere with how the virus manipulates the human cell to stop the cell from responding to the infection.”
Kylene Kehn-Hall, a co-investigator on the study, adds, “We are very excited about this work, as curcumin not only dramatically inhibits RVFV replication in cell culture but also demonstrates efficacy against RVFV in a mouse model.”
Narayanan and her colleagues study the connection between a virus and how it impacts the host — human or animal. Symptoms clue in the researcher about the body’s inner workings. Rift Valley Fever and Venezuelan Equine Encephalitis kick off with flu-like symptoms.
Symptoms can make it challenging for someone to recover. The body usually starts with an exaggerated inflammatory response because it doesn’t know where to start to rid itself of the virus, she says.
“Many times, the body goes above and beyond what is necessary,” Narayanan says. “And that’s not good because it’s going to influence a bunch of cells around the infection, which haven’t seen the bug. That’s one way by which disease spreads through your body. And so it is very important to control the host because a lot of times the way the host responds contributes to the disease.”
Controlling the symptoms means more than simply making the patients feels better. “You’re giving the antiviral a chance to work. Now an antiviral can go in and stop the bug. You’re no longer trying to keep the host alive and battling the bug at the same time.”
Narayanan works with a graduate student in Mason’s National Center for Biodefense and Infectious Diseases.
Photo by Evan Cantwell
Once Narayanan knows how the body responds to a virus, it’s time to go after the bug itself.
She’s applying this know-how to a family of viruses called Bunyaviruses, which feature Rift Valley fever, and such alphaviruses as Venezuelan equine encephalitis and retroviruses, which notably include HIV.
She delves into uncovering why and how each virus affects the patient. “Why are some cell types more susceptible to one type of infection than another?”
HIV goes after the immune system. Bunyaviruses will infect a wide range of cells but do maximum damage to the liver. “What is it about the liver that makes it a sitting duck compared to something like the brain?” Narayanan asks.
Ultimately, curcumin could be part of drug therapies that help defeat these viruses, Narayanan says.
“I know this works. I know it works because I have seen it happen in real life,” Narayanan says. “I eat it every day. I make it a point of adding it to vegetables I cook. Every single day.”
Other Mason researchers involved in the study are Charles Bailey, Ravi Das, Irene Guendel, Lindsay Hall, Fatah Kashanchi, Svetlana Senina and Rachel Van Duyne. Several researchers from other institutions also collaborated.
Contacts and sources:
Michele McDonald
George Mason University
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Turmeric is well known amongst psoriasis & arthritis sufferers too. It really does decrease, if not eliminate inflammation! Seems its good for many ailments. Better than taking pharmaceuticals that’s for sure. Thanks!
Well known for being complete bull you mean. Dammit Alton, I had faith in you. Why do people keep spreading this nonsense? Curry spice is not some magical cure-all. It just isn’t. Make better plans to care for you and yours than stocking up on curry powder. Seriously.