Association of nocturnal intermittent hypoxia with heat shock protein 70 in patients with obstructive sleep apnea: a pilot study
Introduction — Nocturnal intermittent hypoxia in obstructive sleep apnea (OSA) causes cellular stress and consequent change in inducible heat shock protein 70 (HSP70) level. Thus, the objective of this study was to determine the relationship among nocturnal hypoxia and the serum HSP70 level in patie...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Limited liability company «Science and Innovations» (Saratov)
2020-12-01
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| Series: | Russian Open Medical Journal |
| Subjects: | |
| Online Access: | http://www.romj.org/node/353 |
| _version_ | 1818989426889457664 |
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| author | Irina M. Madaeva Nadezhda A. Kurashova Natalya V. Semenova Lubov I. Kolesnikova Sergei I. Kolesnikov |
| author_facet | Irina M. Madaeva Nadezhda A. Kurashova Natalya V. Semenova Lubov I. Kolesnikova Sergei I. Kolesnikov |
| author_sort | Irina M. Madaeva |
| collection | DOAJ |
| description | Introduction — Nocturnal intermittent hypoxia in obstructive sleep apnea (OSA) causes cellular stress and consequent change in inducible heat shock protein 70 (HSP70) level. Thus, the objective of this study was to determine the relationship among nocturnal hypoxia and the serum HSP70 level in patients with severe OSA.
Material and Methods — The study involved 34 patients with a clinical diagnosis of moderate to severe OSA (24 men and 10 women). Patients without OSA (10 men and 5 women) were included as a control group. The groups were similar in age. The polysomnographic monitoring was carried by standart methodology. Blood sampling for determining the HSP70 level was carried out between 8:00 and 9:00 am after polysomnographic monitoring.
Results — The results of this study demonstrated a high apnea/hypopnea index (AHI), which determined the OSA severity and decreased the blood oxygen saturation (SaO2) (p<0.05). Sleep fragmentation in OSA patients confirmed an increase in respiratory arousal index (ArI). The HSP70 level significantly increased in OSA patients compared with the control group. Correlation analysis showed a positive relationship between HSP70 and AHI (R=0.5) in patients with OSAS, as well as a negative relationship between HSP70 and SaO2 (R=-0.3).
Conclusion — Our results demonstrated a high level of HSP70 in patients with severe OSA syndrome vs. those without it. In OSA patients, a direct correlation was found between the HSP70 level and AHI, as well as an inverse correlation between the AHI level and SaO2. These findings suggested an association between the level of inducible HSP70 and nocturnal hypoxia in OSA patients. |
| first_indexed | 2024-12-20T19:38:18Z |
| format | Article |
| id | doaj.art-37b9561c8e174921addd4cf3bb27d11e |
| institution | Directory Open Access Journal |
| issn | 2304-3415 |
| language | English |
| last_indexed | 2024-12-20T19:38:18Z |
| publishDate | 2020-12-01 |
| publisher | Limited liability company «Science and Innovations» (Saratov) |
| record_format | Article |
| series | Russian Open Medical Journal |
| spelling | doaj.art-37b9561c8e174921addd4cf3bb27d11e2022-12-21T19:28:35ZengLimited liability company «Science and Innovations» (Saratov)Russian Open Medical Journal2304-34152020-12-0194e040110.15275/rusomj.2020.0401Association of nocturnal intermittent hypoxia with heat shock protein 70 in patients with obstructive sleep apnea: a pilot studyIrina M. MadaevaNadezhda A. KurashovaNatalya V. SemenovaLubov I. KolesnikovaSergei I. KolesnikovIntroduction — Nocturnal intermittent hypoxia in obstructive sleep apnea (OSA) causes cellular stress and consequent change in inducible heat shock protein 70 (HSP70) level. Thus, the objective of this study was to determine the relationship among nocturnal hypoxia and the serum HSP70 level in patients with severe OSA. Material and Methods — The study involved 34 patients with a clinical diagnosis of moderate to severe OSA (24 men and 10 women). Patients without OSA (10 men and 5 women) were included as a control group. The groups were similar in age. The polysomnographic monitoring was carried by standart methodology. Blood sampling for determining the HSP70 level was carried out between 8:00 and 9:00 am after polysomnographic monitoring. Results — The results of this study demonstrated a high apnea/hypopnea index (AHI), which determined the OSA severity and decreased the blood oxygen saturation (SaO2) (p<0.05). Sleep fragmentation in OSA patients confirmed an increase in respiratory arousal index (ArI). The HSP70 level significantly increased in OSA patients compared with the control group. Correlation analysis showed a positive relationship between HSP70 and AHI (R=0.5) in patients with OSAS, as well as a negative relationship between HSP70 and SaO2 (R=-0.3). Conclusion — Our results demonstrated a high level of HSP70 in patients with severe OSA syndrome vs. those without it. In OSA patients, a direct correlation was found between the HSP70 level and AHI, as well as an inverse correlation between the AHI level and SaO2. These findings suggested an association between the level of inducible HSP70 and nocturnal hypoxia in OSA patients.http://www.romj.org/node/353sleephsp70apneaintermittent hypoxia |
| spellingShingle | Irina M. Madaeva Nadezhda A. Kurashova Natalya V. Semenova Lubov I. Kolesnikova Sergei I. Kolesnikov Association of nocturnal intermittent hypoxia with heat shock protein 70 in patients with obstructive sleep apnea: a pilot study Russian Open Medical Journal sleep hsp70 apnea intermittent hypoxia |
| title | Association of nocturnal intermittent hypoxia with heat shock protein 70 in patients with obstructive sleep apnea: a pilot study |
| title_full | Association of nocturnal intermittent hypoxia with heat shock protein 70 in patients with obstructive sleep apnea: a pilot study |
| title_fullStr | Association of nocturnal intermittent hypoxia with heat shock protein 70 in patients with obstructive sleep apnea: a pilot study |
| title_full_unstemmed | Association of nocturnal intermittent hypoxia with heat shock protein 70 in patients with obstructive sleep apnea: a pilot study |
| title_short | Association of nocturnal intermittent hypoxia with heat shock protein 70 in patients with obstructive sleep apnea: a pilot study |
| title_sort | association of nocturnal intermittent hypoxia with heat shock protein 70 in patients with obstructive sleep apnea a pilot study |
| topic | sleep hsp70 apnea intermittent hypoxia |
| url | http://www.romj.org/node/353 |
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