Increasing the Effectiveness of Intravenous Vitamin C As an Anticancer Agent
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JOM Volume 30, Number 1, 2015 Educational Article 45 Increasing the Effectiveness of Intravenous Vitamin C as an Anticancer Agent Michael J. Gonzalez NMD, DSc, PhD, FANMA, FACN;1 Jorge R. Miranda-Massari PharmD;2 Jorge Duconge PhD;2 Miguel J. Berdiel MD;3 1,2University of Puerto Rico, Medical Sciences Campus, RECNAC 2 Project, Schools of Public Health and Phar- macy3 Pontifical Catholic University, Dept. of Biology. *Correspondence should be addressed to: Dr. Michael J Gonzalez, University of Puerto Rico, Medical Sciences Campus School of Public Health, Department of Human Development, Nutrition Program, GPO Box 365067 San Juan PR 00936-5067; email: [email protected] Abstract Vitamin C has been mentioned as an agent with chemotherapeutic potential since 1952. Physiological concentrations of vitamin C (L-ascorbate or L-ascorbic acid) in the body are controlled through intestinal absorption, tissue accumulation, and renal reabsorption and excretion. Therefore, intravenous administration is used to achieve pharmacologic doses not attainable by other means. In relation to intravenous administration of ascorbate, high-dose intravenous vitamin C (>0.5 g/kg body weight) has several effects: cytotoxicity for cancer cells but not for normal cells; improved quality of life for cancer patients; protection of normal tissues from toxicity caused by chemotherapy; rein- forcement of the action of radiation and some types of chemotherapy; immune system enhancement; and strengthening of collagen and hyaluronic acid. In this article we discuss important therapeutic variables that the clinician faces that are key for increasing the effectiveness of intravenous vitamin C as an anticancer agent. Introduction d. Increases appetite. After over 60 years of experience with 2. Reduces many complications of the disease:11- vitamin C and Cancer, what can we say 16 about vitamin C as an anticancer agent? The a. Resolves ascorbate’s insufficiency in the extensive experience and published papers cancer patient. on vitamin C and cancer demonstrate that b. Combats infections (viral, bacterial, fun- the use of high dose, both oral and intrave- gi). nous (IV) vitamin C is remarkably safe.1-7 c. Decreases cancer-associated inflamma- Additionally, the vast number of publica- tion. tions confirm that it possesses many thera- d. Prevents cancer associated sepsis. peutic benefits. 3. Pharmacological doses of vitamin C have 1. Improves quality of life of cancer patients:8- shown to have cytostatic or cytotoxic action in 10 cancer cells through a variety of mechanisms:17 a. Decreases adverse effects of standard can- a. Fuel control of malignant cells by glucose cer treatments. antagonism. b. Reduces pain. b. Electron donor for the energy redox c. Increases energy. problem present in cancer. 46 Journal of Orthomolecular Medicine Vol 30, No 1, 2015 c. Increases hydrogen peroxide formation. Relevant physiological/cellular d. Increases collagen formation. variables to consider when improv- e. Enhances immune parameters (cellular ing the effectiveness of IV Vitamin C and humoral). therapy f. Sustains and improves the effect of 1. Level of tissue oxygenation: The level standard antineoplastic agents. of tissue oxygenation may be the most im- portant limiting factor in the anticancer Discussion activity of high dose IV vitamin C. As we Many patients have shown impressive are well aware of one of the most impor- responses in tumor size reduction, improve- tant mechanisms by which vitamin C exerts ment in pain control, increased energy lev- its anticancer action is by the production els and appetite, in general we can state that of hydrogen peroxide. For this to occur, the most patients improve their quality of life presence of sufficient oxygen is a requisite. but nevertheless total effectiveness of the Limited oxygen availability reduces the use of IV vitamin C as an anticancer agent chances of the production of hydrogen per- has not been achieved. Results in some in- oxide from the conversion of ascorbic acid stances have been variable. This may be due to dehydroascorbic acid. We propose the to a number of direct interacting variables. utilization of hyperbaric oxygen immediate- In order to consistently improve cancer ly after IV vitamin C therapy to increase its patient outcomes, it is important to have a effectiveness as an anticancer agent, in order comprehensive evaluation of the therapeutic to increase the formation of hydrogen per- protocol that allows us to identify contrib- oxide, and therefore enhance the anticancer uting factors that promote health deteriora- effect of IV vitamin C. tion and the barriers to achieve total healing. In relation to ozone, it is known that vi- These must be identified and corrected. tamin C is antagonistic to ozone, although it has been shown that ozone does not to These variables include but are not limited to: break down vitamin C in the body. Patients 1. Cell energy related metabolic taking therapeutic doses of vitamin C either derangements.18-20 orally or via IV infusion, should take the 2. Toxicities (e.g., tobacco, alcohol, pesti- ozone treatment first, then wait 30 minutes, cides, heavy metals, hydrocarbons, and food and then take the vitamin C dose. nitrosamines).21-28 3. Medications (i.e., opioids impair im- General Aspects of Oxygenation mune response, increase angiogenesis, and a) Hyperbaric Oxygen: Increases oxygen to may even act directly on tumor cells to en- tissues. courage their growth and spread. There are b) Ozone: Increases oxygen. An Italian epidemiologic, animal, and cellular studies group postulates that a prolonged cycle of that suggest a role of mu opioid receptors on ozonated autohemotherapy may correct tu- cancer growth and metastasis).29-31 mor hypoxia, lead to less aggressive tumor 4. Hormonal imbalances/endocrine disrup- behavior. Improving oxygen levels would be tors.32,33 expected to favor the anticancer effect of vi- 5. Excessive inflammation.34,35 tamin C.42 Ozone therapy has been reported 6. Infectious agents and the balance of the to produce an increase in red blood cell gly- body flora.36,37 colysis rate. This leads to stimulation of 2, 3 7. Excessive psychological stress.38,39 diphosphoglycerate which then allows a rise 8. Excessive exposure to radiation.40,41 of the oxygen released to the tissues. Ozone Ten percent of invasive cancers are re- facilitates the Krebs’s cycle by improving lated to radiation exposure, including both the oxidative carboxylation of pyruvate and ionizing radiation and non-ionizing radia- promoting the synthesis of ATP. There is tion. Increasing the Effectiveness of Intravenous Vitamin C as an Anticancer Agent 47 also an increase in antioxidant enzymes that tion, alteration of tumor microenvironment, act as free radical scavengers (such as glu- induction of genotoxic responses, reduction tathione peroxidase, catalase and superoxide of immune action and metabolic derange- dismutase).43 Vasodilation is also induced ments.47 by ozone which leads to increased oxygen c) Sodium bicarbonate: May correct tissue and nutrients and immune factors available acidosis produced by increased fermenta- to the cell.44 Ozonized autohemotransfu- tion. Sodium bicarbonate also has a specific sion may be useful to improve both the poor ability that is, not possessed by other basic rheological properties of the blood and the compounds to destroy fungi colonies.48,49 oxygen delivery to tissues45 and therefore in- d) Dichloroacetic Acid: May improve mi- crease oxygen, immune factors and nutrients tochondrial function by facilitating oxida- that improve healing and tumor response. tive phosphorylation which is lacking in the Animal studies have shown very significant cancer cell.49,50 increased survival in advanced head and neck squamous cell carcinomas with the applica- 2. Level of Blood Glucose:51,52 Excessive tion of ozone. Although the mechanisms for blood glucose can compete with vitamin C this effect has not been totally elucidated, it for the glut receptor sites. It is a good thera- is believed that various important immune- peutic approach to provide the high dose IV modulatory effects in macrophages, poly- vitamin C in an empty stomach. Neverthe- morphonuclear cells (PMN), NK cells, and less we should be aware that sleepiness and cytotoxic T lymphocytes are involved as hypoglycemia symptoms may arise. Receiv- well as other metabolic modulatory effects.46 ing these IVs causes the body to produce Therefore, although at the present time there insulin because it believes that the blood is no solid evidence that ozone can improve sugar is spiking. Patients might experience the anticancer activity of vitamin C, given hypoglycemia-like symptoms. If their blood the scope of its biological effects, it might be sugar is measured during the infusion of IV important to test this combination. vitamin C, the meter reads an enormously –Increases oxygen metabolism: More high number because the body thinks that oxygen availability activates of the Krebs the vitamin C is sugar. So having a reduced cycle, increases oxidative decarboxylation level of blood sugar seems to be a necessary of pyruvate and ATP production. The ad- parameter to increase IV vitamin C’s anti- ditional supply of oxygen oxidizes the lipid cancer effectiveness. layer of malignant cells and destroys them through cell lysis (apoptosis). Oxygen re- 3. Physiological Red-Ox balance:53,54 The acts with the unsaturated fatty acids of the balance between oxidation and anti-oxida- lipid layer in cellular membranes, forming tion is believed to be critical in maintaining hydroperoxides. Lipid peroxidation products healthy biological systems. Reactive oxygen include peroxyl radicals and aldehydes that species (ROS) and reactive nitrogen species possess killer cell action. (RNS) play important roles in regulation of –Increases circulation: Permits more cell survival. In general, moderate levels of oxygen, vitamin C and immune factors to be ROS/RNS may function as signals to pro- delivered to the tissues. mote cell proliferation and survival, whereas –Decreases bacteria/viral/fungi load: severe increases of ROS/RNS can induce cell Microbes are important modulators of the death.