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| Content Provider | Springer Nature Link |
|---|---|
| Author | Yu, Peter H. Lai, Chien Tsai Zuo, Dong Mei |
| Copyright Year | 1997 |
| Abstract | Cardiovascular and cerebrovascular disorders are well known to be associated with stress related behaviors. Stress enhances excretion of adrenaline, which is deaminated by monoamine oxidase and methylamine is formed. This product can be further deaminated by semicarbazide-sensitive amine oxidase (SSAO) and converted to toxic formaldehyde, hydrogen peroxide and ammonia. SSAO is located in the cardiovascular smooth muscles and circulated in the blood. We investigated whether formaldehyde can be derived from adrenaline in vivo. Methylamine was confirmed to be a product of adrenaline catalyzed by type A monoamine oxidase (MAO-A). Irreversible and long-lasting radioactive residual activity was detected in different tissues following administration of 1-[N-methyl-$^{3}$H]-adrenaline. Such irreversible linkage could be blocked by selective MAO-A or SSAO inhibitors. Endothelial cells are quite sensitive to formaldehyde and relatively resistant to hydrogen peroxide. It is possible that stimulation of adrenaline excretion by chronic stress could increase the levels of circulatory formaldehyde. Such chronic “formaldehyde” stress may be involved in the initiation of endothelial injury and subsequently angiopathy. |
| Starting Page | 615 |
| Ending Page | 620 |
| Page Count | 6 |
| File Format | |
| ISSN | 03643190 |
| Journal | Neurochemical Research |
| Volume Number | 22 |
| Issue Number | 5 |
| e-ISSN | 15736903 |
| Language | English |
| Publisher | Kluwer Academic Publishers-Plenum Publishers |
| Publisher Date | 1997-01-01 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Neurosciences Neurology Biochemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Biochemistry Cellular and Molecular Neuroscience |
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