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Glutathione, Whey protein and Immune Response


The immunoenhancing property of dietary whey protein concentrate
Bounous G, Kongshavn PA, Gold P
Montreal General Hospital Research Institute, Quebec, Canada."Mixing lactalbumin with either casein or soy protein in a 20 g protein/100 g diet formula significantly enhanced the immune response in comparison to that of mice fed diets containing 20% soy protein or casein."

Immunoenhancing property of dietary whey protein in mice: role of glutathione
Bounous G, Batist G, Gold P
Montreal General Hospital, Quebec. "This is further evidence of the important role of glutathione in the immunoenhancing effect of dietary whey protein."

Influence Of Dietary Lactalbumin Hydrolysate On The Immune System Of Mice And Resistance To Salmonellosis
G. Bounous, M.M. Stevenson, P.A.L. Kongshavn
[The Journal of Infectious Diseases, 144: 281, 1981] Our data indicate that it was possible to increase the level of this type of protein in the diet above the minimum requirement and thus produce augmented humoral immune responsiveness and resistance to salmonellosis. Lactalbumin = Whey Protein Concentrate


Functions of glutathione and glutathione disulfide in immunology and immunopathology
Droge W, Schulze-Osthoff K, Mihm S, Galter D, Schenk H, Eck HP, Roth S, Gmunder H. [FASEB J. 1994 Nov;8(14):1131-8.] Even a moderate increase in the cellular cysteine supply elevates the intracellular glutathione (GSH) and glutathione disulfide (GSSG) levels and potentiates immunological functions of lymphocytes in vitro. At low GSSG levels, T cells cannot optimally activate the immunologically important transcription factor NF kappa B, whereas high GSSG levels inhibit the DNA binding activity of NF kappa B. The effector phase of cytotoxic T cell responses and IL-2-dependent functions are inhibited even by a partial depletion of the intracellular GSH pool. As signal transduction is facilitated by prooxidant conditions, we propose that the well-known immunological consequences of GSH depletion ultimately may be results of the accompanying GSSG deficiency. As HIV-infected patients and SIV-infected rhesus macaques have, on the average, significantly decreased plasma cyst(e)ine and intracellular GSH levels, we also hypothesize that AIDS may be the consequence of a GSSG deficiency as well.

Effects of purified bovine whey factors on cellular immune functions in ruminants
Wong CW, Seow HF, Husband AJ, Regester GO, Watson DL. [Vet Immunol Immunopathol. 1997 May;56(1-2):85-96.] Alpha-lactalbumin (alpha LA) exhibited an enhancing effect on IL-1 beta production. As bovine whey fractions become progressively more purified, their modulatory effects on the immune response also become more clear-cut.

Glutathione protects mice from lethal sepsis by limiting inflammation and potentiating host defense
Villa P, Saccani A, Sica A, Ghezzi P
. [J Infect Dis 2002 Apr 15;185(8):1115-20] Because glutathione (GSH) is lower in sepsis, the hypothesis that GSH depletion might impair the migratory response of neutrophils to infection was tested....GSH depletion inhibited peritoneal neutrophil infiltration, increased bacterial colonies, augmented pulmonary neutrophil infiltrate, and worsened survival. Conversely, the GSH precursor N-acetyl-l-cysteine augmented neutrophil infiltration in the peritoneum but not in the lung, decreased bacterial colonies, and improved survival. Thus, migration of neutrophils to a site of infection and to a distant site is differently regulated, and optimal GSH levels are important for an efficient response to sepsis.

Glutathione-induced enhancement of neutrophil locomotion
Elferink JG, de Koster BM.
[Immunobiology 1991 Dec;184(1):25-36] Both reduced glutathione (GSH) and and its oxidized form, glutathione disulfide (GSSG), enhance neutrophil locomotion. The enhancement is mainly due to a chemokinetic effect, and partly due to a chemotactic effect. GSH enhances the intracellular concentration of cGMP, which might indicate that the effect on neutrophil locomotion is mediated by an effect on cGMP.


See also: Glutathione (GSH) & the Immune System - Your Lifeline to Health

 


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