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A Different Way of Approaching Drug Resistant TB

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Over many years we have covered the topic of vitamin C and its benefits in health and disease.  We have also written on the benefits of garlic for drug resistant TB and how microbiological research proved this.  As this kind of science continues to be rejected by mainstream medicine and Big PhRMA we can only hope the information presented here helps you to be able to speak out to your health care providers about broader care options.  Please use the search function to locate our earlier vitamin C posts and TB related coverage. You can find more about vitamin C on our web site,, and our Whooping Cough article on the Seattle PI web site, Natural Notes blog.  Thanks for reading.
Mycobacteriumtuberculosisis extraordinarily sensitive to killing by avitamin C-induced Fenton reaction. 

Nat Commun.2013;4:1881. doi: 10.1038/ncomms2898.


Department of Microbiology and Immunology, Howard Hughes Medical Institute, Albert Einstein College of Medicine, 1301 Morris Park Avenue, Bronx, New York 10461, USA.


Drugs that killtuberculosismore quickly could shorten chemotherapy significantly. In Escherichia coli, a common mechanism of cell death by bactericidal antibiotics involves the generation of highly reactive hydroxyl radicals via the Fenton reaction. Here we show thatvitamin C, a compound known to drive the Fenton reaction, sterilizes cultures of drug-susceptible and drug-resistant Mycobacteriumtuberculosis, the causative agent oftuberculosis. While M.tuberculosisis highly susceptible to killing byvitamin C, other Gram-positive and Gram-negative pathogens are not. The bactericidal activity ofvitamin Cagainst M.tuberculosisis dependent on high ferrous ion levels and reactive oxygen species production, and causes a pleiotropic effect affecting several biological processes. This study enlightens the possible benefits of addingvitamin Cto an anti-tuberculosisregimen and suggests that the development of drugs that generate high oxidative burst could be of great use intuberculosistreatment.
[PubMed - in process]
More background information
Monday, 24 June 2013 21:00 By John Otrompke, Contributing Writer
Ascorbic Acid (Vitamin C) crystals. Courtesy Visuals Unlimited

Researchers looking for options to control multi-drug resistant tuberculosis were surprised to learn that vitamin C given along with iron, could wipe out a wide variety of strains—at leastin vitro.
Reporting inNaturelast month, Dr. William Jacobs, Jr., professor of microbiology, immunology & genetics at Yeshiva University, NYC, said, “Mycobacterium tuberculosis is extraordinarily sensitive to killing by a vitamin C-induced Fenton reaction.”
The findings suggest that tuberculosis could be prevented or treated in populations with subclinical infections using simple and inexpensive nutritional supplements—an important discovery in a time when antibiotic-resistant strains are on the rise. This has not yet been tested in infected humans, but it’s certainly plausible.
“The bactericidal activity of vitamin C against M. tuberculosis is dependent on high ferrous ion levels and reactive oxygen species production, and causes a pleiotropic effect affecting several biological processes,” Dr. Jacobs and his colleagues noted.
Making a Killing
“We started our research about two years ago, when we made a surprise discovery,” he Dr. Jacobs told Holistic Primary Care. “We predicted that if we added isoniazid and cysteine to isoniazid-sensitive tuberculosis in culture, the bacteria would develop resistance. We knew isoniazid acts as a reducing agent, generating reactive species, so we tried another agent, vitamin C, to replace cysteine, but instead of causing resistance, we ended up killing off the culture— something totally unexpected.”
He cautioned that scientists don’t yet know whether patients vulnerable to tuberculosis should take vitamin C. “We know that for this killing to occur, you also need to take the element iron along with vitamin C; this is something that could be explored, maybe in synergy with existing drugs, since one third of the world’s population is sub-clinically infected with tuberculosis.”
The problem, he says, is that “it would cost a lot of money to research further, and drug companies are not inclined to do that research because they can’t get a return on their investment, since vitamin C is not patentable,” he explained.
Meanwhile, the researchers at Yeshiva are trying to replicate their findingsin vivo.“We’ve done the experiment in mice just a few months ago, and it did not work,” said Jacobs. “But mice metabolize vitamin C differently from humans; mice make vitamin C, whereas humans can’t.”
Dr. Jacobs’ team has also tested Vitamin E, but it didn’t kill tuberculosis.”
He is hoping to continue the work on vitamin C, suggesting that the combination of ascorbic acid and iron might help boost the efficacy of drug regimens.
“Vitamin C is safe and inexpensive, so drug companies should go head and do a clinical trial, although we don’t know how the vitamin C would get to where tuberculosis is, in a macrophage in the patient’s lungs,” he said.
No Resistance

Mycobacterium tuberculosis. Image courtesy CDC

TB doesn’t appear to develop resistance to vitamin C. “In a genetics lab, we typically discover things by isolating resistant mutants. We tried to find resistant mutants to vitamin C numerous times, but we’ve been unsuccessful, which is exactly what you’d want in a good drug,” Dr. Jacobs explained.
However surprising, these findings are not the first time a study has shown that vitamins are helpful in combating TB. “For example, vitamin D actually turns on macrophages to kill TB, but that is a different mechanism; vitamin D actually stimulates an immune response,” Dr. Jacobs said. The vitamin C and iron combo has a more direct cytotoxic effect.
“We need more funds to explore this; right now is a very difficult time at the National Institutes of Health to get grants. Typically the NIH will fund 25% of grants, but because of budget cuts they’re only funding 6% of grants, and typically to develop a drug for use in people would cost half a billion dollars,” explained Dr. Jacobs. However, it shouldn’t be nearly as expensive to research the viability of vitamin C as a therapy for TB.
“If I had the money, I would go ahead and think abut doing this as an early bacteriocidal therapy. First, I would just monitor the amount of vitamin C in a patient’s blood, when we gave it to them. Before a patient newly-infected with TB started on standard therapy, I would like to do a two-week trial with vitamin C as one of agents. That way, we could test a new regimen, to see if the tuberculosis got killed or not, and then go back and start them on standard therapy.”

This information is provided by Creating Health Institute
through our Health Matters(c) project.


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