DNA Repair, Glutathione and Immunocal
As listed in the PDR (Physicians’ Desk Reference)
IMMUNOCAL® PDR® 2008
NUTRACEUTICAL (Bonded cysteine supplement) glutathione precursor Powder Sachets
DESCRIPTION and CLINICAL PHARMACOLOGY
IMMUNOCAL® is a U.S. patented natural food protein concentrate in the FDA category of GRAS (generally recognized as safe) which assists the body in maintaining optimal concentrations of glutathione (GSH) by supplying the precursors required for intracellular glutathione synthesis.
It is clinically proven to raise glutathione values.
Glutathione is a tripeptide made intracellularly from its constituent amino acids L-glutamate, L-cysteine and glycine. The sulfhydryl (thiol) group (SH) of cysteine is responsible for the biological activity
of glutathione. Provision of this amino acid is the rate-limiting factor in glutathione synthesis by the cells since cysteine is relatively rare in foodstuffs.
Immunocal® is a bovine whey protein isolate specially prepared so as to provide a rich source of bioavailable cysteine. Immunocal® can thus be viewed as a cysteine delivery system.
The disulphide bond in cystine is pepsin and trypsin resistant but may be split by heat, low pH or mechanical stress releasing free cysteine.
When subject to heat or shearing forces (inherent in most extraction processes), the fragile disulfide bonds within the peptides are broken and the bioavailablility of cysteine is greatly diminished.
Glutathione is a tightly regulated intracellular constituent and is limited in its production by negative feedback inhibition of its own synthesis through the enzyme gamma-glutamylcysteine synthetase, thus greatly minimizing any possibility of overdosage.
Glutathione has multiple functions:
1. It is the major endogenous antioxidant produced by the cells, participating directly in the neutralization of free radicals and reactive oxygen compounds, as well as maintaining exogenous antioxidants such as vitamins C and E in their reduced (active) forms.
2. Through direct conjugation, it detoxifies many xenobiotics (foreign compounds) and carcinogens, both organic and inorganic.
Main Entry: con·ju·gase
Pronunciation: kän-j – g s, – g z
Function: noun
: any of a group of enzymes found in blood or in certain organs (as kidney and pancreas) and in some vegetables (as potatoes) that bring about the breakdown of conjugates of pteroylglutamic acid
3. It is essential for the immune system to exert its full potential, e.g. (1) modulating antigen presentation to lymphocytes, thereby influencing cytokine production and type of response (cellular or humoral) that develops, (2) enhancing proliferation of lymphocytes thereby increasing magnitude of response, (3) enhancing killing activity of cytotoxic T cells and NK cells, and (4) regulating apoptosis, thereby maintaining control of the immune response.
4. It plays a fundamental role in numerous metabolic and biochemical reactions such as DNA synthesis and repair, protein synthesis, prostaglandin synthesis, amino acid transport and enzyme activation. Thus, every system in the body can be affected by the state of the glutathione system, especially the immune system, the nervous system, the gastrointestinal system and the lungs.
Notation
DNA Synthesis and Repair
DNA repair refers to a collection of processes by which a cell identifies and corrects damage to the DNA molecules that encode its genome. In human cells, both normal metabolic activities and environmental factors such as UV light and Radiation can cause DNA damage, resulting in as many as 1 million individual molecular lesions per cell per day.[1] Many of these lesions cause structural damage to the DNA molecule and can alter or eliminate the cell’s ability to transcribe the gene that the affected DNA encodes. Other lesions induce potentially harmful mutations in the cell’s genome, which affect the survival of its daughter cells after it undergoes mitosis. Consequently, the DNA repair process is constantly active as it responds to damage in the DNA structure.
The rate of DNA repair is dependent on many factors, including the cell type, the age of the cell, and the extracellular environment. A cell that has accumulated a large amount of DNA damage, or one that no longer effectively repairs damage incurred to its DNA, can enter one of three possible states:
- an irreversible state of dormancy, known as senescence
- cell suicide, also known as apoptosis or programmed cell death
- unregulated cell division, which can lead to the formation of a tumor that is cancerous
The DNA repair ability of a cell is vital to the integrity of its genome and thus to its normal functioning and that of the organism. Many genes that were initially shown to influence lifespan have turned out to be involved in DNA damage repair and protection.[2] Failure to correct molecular lesions in cells that form gametes can introduce mutations into the genomes of the offspring and thus influence the rate of evolution.
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INDICATIONS AND USAGE
IMMUNOCAL® is a natural food supplement and as such is limited from stating medical claims per se. Statements have not been evaluated by the FDA. As such, this product is thus not intended to diagnose, cure, prevent or treat any disease.
Glutathione augmentation is a strategy developed to address states of glutathione deficiency, high oxidative stress, immune deficiency, and xenobiotic overload in which glutathione plays a part in the detoxification of the xenobiotic in question.
Glutathione deficiency states include, but are not limited to: HIV/AIDS, infectious hepatitis, certain types of cancers, cataracts, Alzheimer’s Disease, Parkinsons, chronic obstructive pulmonary disease, asthma, radiation, poisoning by acetaminophen and related agents, malnutritive states, arduous physical stress, aging, and has been associated with sub-optimal immune response. Many clinical pathologies are associated with oxidative stress and are elaborated upon in numerous medical references.
Low glutathione is also strongly implicated in wasting and negative nitrogen balance, notably as seen in cancer, AIDS, sepsis, trauma, burns and even athletic overtraining. Cysteine supplementation can oppose this process and in AIDS, for example, result in improved survival rates.
CONTRAINDICATIONS
IMMUNOCAL® is contraindicated in individuals who develop or have known hypersensitivity to specific milk proteins.
PRECAUTIONS
Each sachet of IMMUNOCAL® contains nine grams of protein. Patients on a protein-restricted diet need to take this into account when calculating their daily protein load. Although a bovine milk derivative, IMMUNOCAL® contains less than 1% lactose and therefore is generally well tolerated by lactose-intolerant individuals.
WARNINGS
Patients undergoing immunosuppressive therapy should discuss the use of this product with their health professional.
ADVERSE REACTIONS
Gastrointestinal bloating and cramps if not sufficiently rehydrated. Transient urticarial-like rash in rare individuals undergoing severe detoxification reaction. Rash abates when product intake stopped or reduced.
OVERDOSAGE
Overdosing on IMMUNOCAL® has not been reported.
DOSAGE AND ADMINISTRATION
For mild to moderate health challenges, 20 grams per day is recommended. Clinical trials in patients with AIDS, COPD, cancer and chronic fatigue syndrome have used 30-40 grams per day without ill effect. IMMUNOCAL® is best administered on an empty stomach or with a light meal. Concomitant intake of another high protein load may adversely affect absorption.
RECONSTITUTION
IMMUNOCAL® is a dehydrated powdered protein isolate. It must be appropriately rehydrated before use. Remains bioactive up to 12 hours after mixing. DO NOT heat or use a hot liquid to rehydrate the product. DO NOT use a high-speed blender for reconstitution. These methods will decrease the activity of the product. Proper mixing is imperative. Consult instructions included in packaging.
HOW SUPPLIED
10 grams of bovine milk protein isolate powder per sachet. 30 sachets per box.
STORAGE
Store in a cool dry environment. Refrigeration is not necessary. Patent no.’s: 5,230,902 – 5,290,571 – 5,456,924 – 5 ,451,412 – 5,888,552
REFERENCES
1. Baruchel S, Viau G, Olivier R. et al. Nutraceutical modulation of glutathione with a humanized native milk serum protein isolate, Immunocal®: application in AIDS and cancer. In: Oxidative Stress in Cancer, AIDS and Neurodegenerative Diseases. Ed.; Montagnier L,
Olivier R, Pasquier C. Marcel Dekker Inc. New York, 447-461, 1998
2. Bounous G, Kongshavn P. Influence of protein type in nutritionally adequate diets on the development of immunity. In Absorption and Utilization of Amino Acids Vol.II. Ed. M. Friedman. CRC Press, Inc., Fla. 2:219-32, 1989
3.Bounous G, Gold P. The biological activity of undenatured whey proteins: role of glutathione. Clin Invest Med 14:296-309, 1991
4.Bounous G, Baruchel S, Falutz J. Gold P. Whey proteins as a food supplement in HIV-seropositive individuals. Clin Invest Med. 16:3; 204-209, 1992
5.Bounous G. Whey protein concentrate (WPC) and glutathione modulation in cancer treatment. Anticancer Res. 20:4785-4792,2000
6.Bounous G. Immunoenhancing properties of undenatured milk serum protein isolate in HIV patients. Int. Dairy Fed: Whey: 293-305, 1998
7. Bray T, Taylor C. Enhancement of tissue glutathione for antioxidant and immune functions in malnutrition. Biochem. Pharmacol. 47:2113- 2123, 1994.
8. Droge W, Holm E. Role of cysteine and glutathione in HIV infection and other diseases associated with muscle wasting and immunological dysfunction. FASEB J: 11(13):1077-1089, 1997
9. Herzenberg LA, De Rosa SC, Dubs JG et al. Glutathione deficiency is associated with impaired survival in HIV disease. Proc Natl Acad Sci 94:1967-72,1997
10. Kennedy R, Konok G, Bounous G et al.. The use of a whey protein concentrate in the treatment of patients with metastatic carcinoma: A phase 1-II clinical study. Anticancer Res. 15:2643-50,1995
11. Lands LC, Grey VL, Smountas AA. Effect of supplementation with a cysteine donor on muscular performance. J. Appl. Physiol. 87:1381-1385, 1999
12. Locigno R, Castronovo V. Reduced glutathione system: Role in cancer development, prevention and treatment. International Journal of Oncology 19:221-236, 2001
13. Lomaestro B, Malone M. Glutathione in health and disease: pharmacotherapeutic issues. Ann Pharmacother 29: 1263-73,1995
14. Lothian B, Grey V, Kimoff RJ, Lands. Treatment of obstructive airway disease with a cysteine donor protein supplement: a case report. Chest 117:914-916, 2000
15. Meister A. Glutathione. Ann Rev Biochem 52:711-60,1983
16. Peterson JD, Herzenberg LA, Vasquez KK, Waltenbaugh C. Glutathione levels in antigen-presenting
cells modulate Th1 versus Th2 response patterns. Proc.Natl. Acad. Sci. 95:3071-3076, 1998
17. Watanabe A, Higachi K, Yasumura S. et al. Nutritional modulation of glutathione level and cellular immunity in chronic hepatitis B and C. Hepatology. 24:597A, 1996
18. Witschi A, Reddy S, Stofer B, Lauterberg B. The systemic availability of oral glutathione. Eur. J. Clin. Pharmacol. 43:667-669, 1992.
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