Normobaric oxygen treatment for mild-to-moderate depression: a randomized, double-blind, proof-of-concept trial

Abstract Oxygen enriched air may increase oxygen pressure in brain tissue and have biochemical effects even in subjects without lung disease. Consistently, several studies demonstrated that normobaric oxygen treatment has clinical benefits in some neurological conditions. This study examined the eff...

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Autores principales: Yehudit Bloch, R. H. Belmaker, Pesach Shvartzman, Pnina Romem, Arkady Bolotin, Yuly Bersudsky, Abed N. Azab
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Publicado: Nature Portfolio 2021
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spelling oai:doaj.org-article:0164be22763d4d4cbf2b01982a8dbe382021-12-02T17:26:49ZNormobaric oxygen treatment for mild-to-moderate depression: a randomized, double-blind, proof-of-concept trial10.1038/s41598-021-98245-92045-2322https://doaj.org/article/0164be22763d4d4cbf2b01982a8dbe382021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98245-9https://doaj.org/toc/2045-2322Abstract Oxygen enriched air may increase oxygen pressure in brain tissue and have biochemical effects even in subjects without lung disease. Consistently, several studies demonstrated that normobaric oxygen treatment has clinical benefits in some neurological conditions. This study examined the efficacy of normobaric oxygen treatment in subjects with depression. In a randomized, double-blind trial, 55 participants aged 18–65 years with mild to moderate depression (had a Hamilton Rating Scale for Depression [HRSD] score of ≥ 8) were recruited to the study from the Southern district in Israel. Participants underwent a psychiatric inclusion assessment at baseline and then were randomly assigned to either normobaric oxygen treatment of 35% fraction of inspired oxygen or 21% fraction of inspired oxygen (room air) through a nasal tube, for 4 weeks, during the night. Evaluations were performed at baseline, 2 and 4 weeks after commencement of study interventions, using the following tools: HRSD; Clinical Global Impression (CGI) questionnaire; World Health Organization-5 questionnaire for the estimation of Quality of Life (WHO-5-QOL); Sense of Coherence (SOC) 13-item questionnaire; and, Sheehan Disability Scale (SDS). A multivariate regression analysis showed that the mean ± standard deviation [SD] changes in the HRSD scores from baseline to week four were − 4.2 ± 0.3 points in the oxygen-treated group and − 0.7 ± 0.6 in the control group, for a between-group difference of 3.5 points (95% confidence interval [CI] − 5.95 to − 1.0; P = 0.007). Similarly, at week four there was a between-group difference of 0.71 points in the CGI score (95% CI − 1.00 to − 0.29; P = 0.001). On the other hand, the analysis revealed that there were no significant differences in WHO-5-QOL, SOC-13 or SDS scores between the groups. This study showed a significant beneficial effect of oxygen treatment on some symptoms of depression. Trial registration: NCT02149563 (29/05/2014).Yehudit BlochR. H. BelmakerPesach ShvartzmanPnina RomemArkady BolotinYuly BersudskyAbed N. AzabNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Yehudit Bloch
R. H. Belmaker
Pesach Shvartzman
Pnina Romem
Arkady Bolotin
Yuly Bersudsky
Abed N. Azab
Normobaric oxygen treatment for mild-to-moderate depression: a randomized, double-blind, proof-of-concept trial
description Abstract Oxygen enriched air may increase oxygen pressure in brain tissue and have biochemical effects even in subjects without lung disease. Consistently, several studies demonstrated that normobaric oxygen treatment has clinical benefits in some neurological conditions. This study examined the efficacy of normobaric oxygen treatment in subjects with depression. In a randomized, double-blind trial, 55 participants aged 18–65 years with mild to moderate depression (had a Hamilton Rating Scale for Depression [HRSD] score of ≥ 8) were recruited to the study from the Southern district in Israel. Participants underwent a psychiatric inclusion assessment at baseline and then were randomly assigned to either normobaric oxygen treatment of 35% fraction of inspired oxygen or 21% fraction of inspired oxygen (room air) through a nasal tube, for 4 weeks, during the night. Evaluations were performed at baseline, 2 and 4 weeks after commencement of study interventions, using the following tools: HRSD; Clinical Global Impression (CGI) questionnaire; World Health Organization-5 questionnaire for the estimation of Quality of Life (WHO-5-QOL); Sense of Coherence (SOC) 13-item questionnaire; and, Sheehan Disability Scale (SDS). A multivariate regression analysis showed that the mean ± standard deviation [SD] changes in the HRSD scores from baseline to week four were − 4.2 ± 0.3 points in the oxygen-treated group and − 0.7 ± 0.6 in the control group, for a between-group difference of 3.5 points (95% confidence interval [CI] − 5.95 to − 1.0; P = 0.007). Similarly, at week four there was a between-group difference of 0.71 points in the CGI score (95% CI − 1.00 to − 0.29; P = 0.001). On the other hand, the analysis revealed that there were no significant differences in WHO-5-QOL, SOC-13 or SDS scores between the groups. This study showed a significant beneficial effect of oxygen treatment on some symptoms of depression. Trial registration: NCT02149563 (29/05/2014).
format article
author Yehudit Bloch
R. H. Belmaker
Pesach Shvartzman
Pnina Romem
Arkady Bolotin
Yuly Bersudsky
Abed N. Azab
author_facet Yehudit Bloch
R. H. Belmaker
Pesach Shvartzman
Pnina Romem
Arkady Bolotin
Yuly Bersudsky
Abed N. Azab
author_sort Yehudit Bloch
title Normobaric oxygen treatment for mild-to-moderate depression: a randomized, double-blind, proof-of-concept trial
title_short Normobaric oxygen treatment for mild-to-moderate depression: a randomized, double-blind, proof-of-concept trial
title_full Normobaric oxygen treatment for mild-to-moderate depression: a randomized, double-blind, proof-of-concept trial
title_fullStr Normobaric oxygen treatment for mild-to-moderate depression: a randomized, double-blind, proof-of-concept trial
title_full_unstemmed Normobaric oxygen treatment for mild-to-moderate depression: a randomized, double-blind, proof-of-concept trial
title_sort normobaric oxygen treatment for mild-to-moderate depression: a randomized, double-blind, proof-of-concept trial
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/0164be22763d4d4cbf2b01982a8dbe38
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