Effects of hyperbaric pressure on the oxidative stress status in healthy subjects

Authors

Keywords:

biomarkers, catalase, decompression, free radicals, healthy volunteers, malondialdehyde, oxidative stress, superoxide dismutase.

Abstract

Introduction: In the hyperbaric pressure environment the partial pressure of each gas component increases, which increases oxygen partial pressure. This causes the generation of free radicals and oxidative stress.
Objective: To determine the effects of hyperbaric pressure on the oxidative stress status in healthy subjects.
Methods: 29 healthy men performed standardized hyperbaric chamber dive to a depth of 30 meters of water (msw) for 30 minutes. Blood samples were collected before compression, immediately after decompression and 1 hour after decompression. The levels of Malondialdehyde, Catalase and Superoxide Dismutase were measured in blood samples.
Results: Malondialdehyde activity increased immediately after decompression and recovered at 1 hour after decompression. Superoxide Dismutase enzyme activity decreased immediately after decompression as well as 1 hour after decompression. Catalase enzyme activity increased immediately after decompression, which was significant at 1 hour after decompression.
Conclusion: Changes in the biologic markers Malondialdehyde, Catalase and Superoxide Dismutase suggest the appearance of oxidative stress under the influence of a hyperbaric pressure environment.

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Author Biographies

Phuong Minh Nguyen, Vietnam Military Medical University

Colonel

Associate Professor

Head of Department of Military Occupational Medicine

Vietnam Military Medical University

I have 20 years working at the Department of Military Occupational Medicine of the Vietnam Military Medical University. My work  is to teach military occupational physiology, naval medicine and aviation medicine to military medical students. Regarding scientific research, I am interested in studying the influence of factors in the working environment on physiological functions of the body such as the influence of noise, high-pressure environment, toxic chemicals. 

Ben Huu Nguyen, Vietnam Military Medical University

Lecturer

Department of Military Occupational Medicine

Vietnam Military Medical University

Manh Van Phan, Vietnam Military Medical University

Lecturer

Department of Military Occupational Medicine

Vietnam Military Medical University

Hoan Duy Bui, Vietnam Military Medical University

Lecturer

Department of Military Occupational Medicine

Vietnam Military Medical University

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Published

2023-04-21

How to Cite

1.
Nguyen PM, Nguyen BH, Phan MV, Bui HD. Effects of hyperbaric pressure on the oxidative stress status in healthy subjects. Rev Cubana Med Milit [Internet]. 2023 Apr. 21 [cited 2025 Jan. 9];52(2):e02302506. Available from: https://revmedmilitar.sld.cu/index.php/mil/article/view/2506

Issue

Section

Research Article

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