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Histologic Evaluation of Normobaric Oxygen Therapy Safety in an Animal Model

Author(s): Farideh Sharifipour | Esmaeil Idani | Nastaran Ranjbari | Ali Asghar Hemmati | Mohammad Malekahmadi

Journal: Jundishapur Journal of Natural Pharmaceutical Products
ISSN 1735-7780

Volume: 7;
Issue: 3;
Start page: 97;
Date: 2012;
Original page

Keywords: Safety | Oxygen Inhalation Therapy | Rabbits

Background: Oxygen therapy, as a therapeutic modality, can be used for long periods of times. However, it may be accompanied by potential complications and side effects..Objectives: To evaluate the side effects of normobaric oxygen therapy in rabbits..Materials and Methods: In a double-blind experiment, 28 white New Zealand rabbits were randomized into an oxygen treatment group (n = 14) and a control group (n = 14).The oxygen treatment group received 100% oxygen at a flow rate of 5 L/min for 1 h daily,for 1 month. The animals were euthanized at the end of the study, and following autopsya histological evaluation was carried out to detect levels of oxygen toxicity in their;lungs, liver, brain, heart, kidney, eyes and spleen..Results: Histological evaluation revealed no evidence of toxicity in the examined tissues,compared with the control group..Conclusions: Oxygen therapy at a flow rate of 5 L/min for 1 h daily for 1 month had no systemic toxicity and it appears to be safe in rabbits.
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