ProHealth health Vitamin and Natural Supplement Store and Health
Home  |  Log In  |  My Account  |  View Cart  View Your ProHealth Vitamin and Supplement Shopping Cart
800-366-6056  |  Contact Us  |  Help
Facebook Google Plus
Fibromyalgia  Chronic Fatigue Syndrome & M.E.  Lyme Disease  Natural Wellness  Supplement News  Forums  Our Story
Store     Brands   |   A-Z Index   |   Best Sellers   |   New Products   |   Deals & Specials   |   Under $10   |   SmartSavings Club

Trending News

Friendly User's Guide for the Timing of Nutritional Supplements

The Health Benefits of Manuka Honey

Increase Your Magnesium Intake

Vitamin D supplementation could ease IBS symptoms

Top Tips to Boost Your Immunity

11 Amazing Health Benefits of Using Baking Soda

Nicotinamide riboside shows promise for treatment of Alzheimer’s disease

Exercise, calcium, vitamin D, and other factors linked with fewer injurious falls

Vitamin D3 Is a Powerhouse for Your Heart

Mediterranean diet associated with lower risk of aggressive prostate cancer

 
Print Page
Email Article

High doses of vitamin C to improve cancer treatment passes human safety trial

  [ Not Yet Rated ]   [ Discuss This Article ]
www.ProHealth.com • May 25, 2017


High doses of vitamin C to improve cancer treatment passes human safety trial
Press Release: Cell Press, March 30, 2017. Clinical trials found that it is safe to regularly infuse brain and lung cancer patients with 800 -- 1000 times the daily recommended amount of vitamin C as a potential strategy to improve outcomes of standard cancer treatments. In a work presented March 30, 2017 in Cancer Cell, University of Iowa researchers also show pathways by which altered iron metabolism in cancer cells, and not normal cells, lead to increased sensitivity to cancer cell death caused by high dose vitamin C.
 
"This paper reveals a metabolic frailty in cancer cells that is based on their own production of oxidizing agents that allows us to utilize existing redox active compounds, like vitamin C, to sensitize cancer cells to radiation and chemotherapy," says co-author Garry Buettner, who was one of the first to propose that cancer cells might have a vulnerability to redox active compounds over 40 years ago. Buettner, along with study senior authors Bryan Allen and Douglas Spitz, are faculty members at the University of Iowa's Department of Radiation Oncology, Free Radical and Radiation Biology Program, in the Holden Comprehensive Cancer Center.
 
The 11 evaluable patients enrolled in the brain cancer safety trial received three infusions of vitamin C a week for 2 months followed by two infusions per week for 7 months while receiving standard care radiation and chemotherapy. The goal of each infusion was to raise the concentration of vitamin C in a patient's blood to 20,000 ?M, as compared to a blood level of about 70 ?M found in most adults. The high dose is necessary because vitamin C has a half-life of about two hours in the circulation of humans. The treatment was generally well tolerated; with modest side effects including frequent trips to the bathroom and dry mouth. Rarely, some patients developed high blood pressure that subsided quickly following infusion.
 
Why is this approach safe? Vitamin C, even at high levels, isn't toxic to normal cells. The research group at Iowa found, however, that tumor tissue's abnormally high levels of redox active iron molecules (a by-product of abnormal mitochondrial metabolism) react with vitamin C to form hydrogen peroxide and free radicals derived from hydrogen peroxide. These free radicals are believed to cause DNA damage selectively in cancer cells (versus normal cells) leading to enhanced cancer cell death as well as sensitization to radiation and chemotherapy in cancer cells.
 
"This is a significant example of how knowing details of potential mechanisms and the basic science of redox active compounds in cancer versus normal cells can be leveraged clinically in cancer therapy," says co-senior author Douglas Spitz, who focused on the biochemical studies. "Here, we verified convincingly that increased redox active metal ions in cancer cells were responsible for this differential sensitivity of cancer versus normal cells to very high doses of vitamin C."
 
The safety study sets the stage for phase II clinical trials looking at whether high dose vitamin C is effective at extending overall lifespan and quality of life for patients undergoing radiation and chemotherapy. The researchers are currently enrolling patients with stage 4 lung cancer and will soon begin enrolling people with glioblastoma multiforme (brain cancer) in these phase II trials. They are hopeful that brain cancer responses to radiation and chemotherapy can be enhanced in these phase II trials. This guarded optimism is based on the phase I trial data showing an increase in overall survival of 4-6 months in 11 glioblastoma multiforme patients (18-22 months) versus the 14-16 months survival typically seen with the standard treatment.
 
"The majority of cancer patients we work with are excited to participate in clinical trials that could benefit future patient outcomes down the line," says co-senior author Bryan Allen, who led the clinical side of the study. "Results look promising but we're not going to know if this approach really improves therapy response until we complete these phase II trials."
 
The cost per patient above standard insurance billing for the phase II vitamin C glioblastoma multiforme protocol is approximately $8000 spread over 9 months of test infusions. This cost can be less than a single dose of some immunotherapy and/or chemotherapy drugs.
 
Journal Reference: Joshua D. Schoenfeld, Zita A. Sibenaller, Kranti A. Mapuskar, Brett A. Wagner, Kimberly L. Cramer-Morales, Muhammad Furqan, Sonia Sandhu, Thomas L. Carlisle, Mark C. Smith, Taher Abu Hejleh, Daniel J. Berg, Jun Zhang, John Keech, Kalpaj R. Parekh, Sudershan Bhatia, Varun Monga, Kellie L. Bodeker, Logan Ahmann, Sandy Vollstedt, Heather Brown, Erin P. Shanahan Kauffman, Mary E. Schall, Ray J. Hohl, Gerald H. Clamon, Jeremy D. Greenlee, Matthew A. Howard, Michael K. Shultz, Brian J. Smith, Dennis P. Riley, Frederick E. Domann, Joseph J. Cullen, Garry R. Buettner, John M. Buatti, Douglas R. Spitz, Bryan G. Allen. O 2 and H 2 O 2 -Mediated Disruption of Fe Metabolism Causes the Differential Susceptibility of NSCLC and GBM Cancer Cells to Pharmacological Ascorbate. Cancer Cell, 2017; DOI: 10.1016/j.ccell.2017.02.018



Post a Comment

Featured Products From the ProHealth Store
Vitamin D3 Extreme™ Mitochondria Ignite™ with NT Factor® FibroSleep™


Article Comments



Be the first to comment on this article!

Post a Comment


 
Optimized Curcumin Longvida with Omega-3

Featured Products

Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function
Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get Energized with Malic Acid & Magnesium
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health
FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid

Natural Remedies

Physically and Mentally Exhausted? How to Restore Energy at Its Source Physically and Mentally Exhausted? How to Restore Energy at Its Source
Magnesium + Malic Acid: One-Two Punch for Pain & Fatigue Magnesium + Malic Acid: One-Two Punch for Pain & Fatigue
Curcumin - a Golden Gift of Nature with Benefits Still Untold Curcumin - a Golden Gift of Nature with Benefits Still Untold
Coconut Oil - Healthy Gifts from the 'Tree of Life' Coconut Oil - Healthy Gifts from the 'Tree of Life'
Can Pomegranates Slow Aging? Can Pomegranates Slow Aging?

CONTACT US
ProHealth, Inc.
555 Maple Ave
Carpinteria, CA 93013
(800) 366-6056  |  Email

· Become a Wholesaler
· Vendor Inquiries
· Affiliate Program
SHOP WITH CONFIDENCE
Credit Card Processing
SUBSCRIBE TO OUR NEWSLETTERS
Get the latest news about Fibromyalgia, M.E/Chronic Fatigue Syndrome, Lyme Disease and Natural Wellness

CONNECT WITH US ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus

© 2018 ProHealth, Inc. All rights reserved. Pain Tracker App  |  Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map