» Articles » PMID: 1362956

The Systemic Availability of Oral Glutathione

Overview
Specialty Pharmacology
Date 1992 Jan 1
PMID 1362956
Citations 73
Authors
Affiliations
Soon will be listed here.
Abstract

When the plasma glutathione concentration is low, such as in patients with HIV infection, alcoholics, and patients with cirrhosis, increasing the availability of circulating glutathione by oral administration might be of therapeutic benefit. To assess the feasibility of supplementing oral glutathione we have determined the systemic availability of glutathione in 7 healthy volunteers. The basal concentrations of glutathione, cysteine, and glutamate in plasma were 6.2, 8.3, and 54 mumol.l-1 respectively. During the 270 min after the administration of glutathione in a dose of 0.15 mmol.kg-1 the concentrations of glutathione, cysteine, and glutamate in plasma did not increase significantly, suggesting that the systemic availability of glutathione is negligible in man. Because of hydrolysis of glutathione by intestinal and hepatic gamma-glutamyltransferase, dietary glutathione is not a major determinant of circulating glutathione, and it is not possible to increase circulating glutathione to a clinically beneficial extent by the oral administration of a single dose of 3 g of glutathione.

Citing Articles

Effective Repeated Production of γ-glutamylcysteine, Essential For Intracellular Glutathione Production, Using Cellulose-immobilized Phytochelatin Synthase-like Enzyme NsPCS.

Nakai T, Hirata K, Nagano K, Arai M, Uyama H, Hirata Y Appl Biochem Biotechnol. 2025; .

PMID: 39836300 DOI: 10.1007/s12010-024-05137-5.


Minimizing Oxidative Stress in the Lens: Alternative Measures for Elevating Glutathione in the Lens to Protect against Cataract.

Lim J, Jiang L, Lust N, Donaldson P Antioxidants (Basel). 2024; 13(10).

PMID: 39456447 PMC: 11505578. DOI: 10.3390/antiox13101193.


Oral administration of cysteine peptides attenuates UV-B-induced skin erythema and pigmentation in humans.

Sakuma A, Kai Y, Yamasaki Y, Tanaka T, Sakurai T Sci Rep. 2024; 14(1):22163.

PMID: 39333704 PMC: 11436644. DOI: 10.1038/s41598-024-73447-z.


Durian fruit pulp extract enhances intracellular glutathione levels, mitigating oxidative stress and inflammation for neuroprotection.

Khaksar G, Myint S, Hasriadi , Towiwat P, Sirikantaramas S, Rodsiri R Sci Rep. 2024; 14(1):15153.

PMID: 38956206 PMC: 11220076. DOI: 10.1038/s41598-024-65219-6.


Vitamin C and glutathione supplementation: a review of their additive effects on exercise performance.

Lee E, Park H, Kim S, Kim J, Lim K Phys Act Nutr. 2023; 27(3):36-43.

PMID: 37946445 PMC: 10636510. DOI: 10.20463/pan.2023.0027.


References
1.
Bilzer M, Lauterburg B . Effects of hypochlorous acid and chloramines on vascular resistance, cell integrity, and biliary glutathione disulfide in the perfused rat liver: modulation by glutathione. J Hepatol. 1991; 13(1):84-9. DOI: 10.1016/0168-8278(91)90868-c. View

2.
Lauterburg B, Velez M . Glutathione deficiency in alcoholics: risk factor for paracetamol hepatotoxicity. Gut. 1988; 29(9):1153-7. PMC: 1434362. DOI: 10.1136/gut.29.9.1153. View

3.
Aebi S, Assereto R, Lauterburg B . High-dose intravenous glutathione in man. Pharmacokinetics and effects on cyst(e)ine in plasma and urine. Eur J Clin Invest. 1991; 21(1):103-10. DOI: 10.1111/j.1365-2362.1991.tb01366.x. View

4.
Cantin A, Hubbard R, Crystal R . Glutathione deficiency in the epithelial lining fluid of the lower respiratory tract in idiopathic pulmonary fibrosis. Am Rev Respir Dis. 1989; 139(2):370-2. DOI: 10.1164/ajrccm/139.2.370. View

5.
Speisky H, Shackel N, Varghese G, Wade D, Israel Y . Role of hepatic gamma-glutamyltransferase in the degradation of circulating glutathione: studies in the intact guinea pig perfused liver. Hepatology. 1990; 11(5):843-9. DOI: 10.1002/hep.1840110520. View