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| Content Provider | Springer Nature Link |
|---|---|
| Author | Sergeeva, O. V. Alipov, N. N. Smirv, V. M. |
| Copyright Year | 2008 |
| Abstract | Were studied the effects of atropine and β-adrenoblockers on the power of very low (<0.25 Hz), low (0.25–0.70 Hz), and high frequency (0.7–1.8 Hz) waves of the heart rhythm in wakeful rats. Atropine reduced the power of all waves in 100% cases. Propranolol on average decreased the power of very low frequency waves and increased the power of low and high frequency waves, although opposite effects were observed in many cases. Atenolol produced similar effects. Some animals demonstrated spontaneous moderation of respiratory rate to a level corresponding to low-frequency oscillations of the heart rhythm accompanied by elevation of the relative power of low frequency waves. Inconsistency of the effects of β-adrenoblockers in rats can be related to variability of sympathetic tone and spontaneous deceleration of respiration with the corresponding changes of low frequency waves. Augmentation of the high frequency waves during application of β-adrenoblockers is not related to their action on CNS. |
| Starting Page | 387 |
| Ending Page | 390 |
| Page Count | 4 |
| File Format | |
| ISSN | 00074888 |
| Journal | Bulletin of Experimental Biology and Medicine |
| Volume Number | 145 |
| Issue Number | 4 |
| e-ISSN | 15738221 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2008-09-26 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | heart autonomic nervous system heart rhythm variability Laboratory Medicine Pathology Cell Biology Internal Medicine Biomedicine general |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Biochemistry, Genetics and Molecular Biology |
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