Loading...
Please wait, while we are loading the content...
Similar Documents
The effect of α-melanocyte stimulating hormone on endotoxin-induced intestinal injury
| Content Provider | Semantic Scholar |
|---|---|
| Author | Şan, Tangül Oktar, Berna K. Salik, Emsal Ercan, Feriha Ali̇can, İnci̇ |
| Copyright Year | 2001 |
| Abstract | Abstract We investigated the effect of α-melanocyte stimulating hormone (α-MSH) on endotoxin-induced intestinal inflammation and the role of nitric oxide and prostaglandins in this response. α-MSH treatment (25 μg/rat, intraperitoneally (i.p.); twice daily) reduced the severity of the lesions macroscopically and microscopically. This protective effect was found to be confined mainly to the distal ileum. These lesions were reversed by pretreatment with the non-selective COX inhibitor indomethacin (10 mg/kg, subcutaneously (s.c.)) but not by the selective COX-2 inhibitor nimesulide (3 mg/kg, s.c.), the NO donor sodium nitroprusside (4 mg/kg, i.v.) or the iNOS inhibitor dexamethasone (3 mg./kg, i.p.) at macroscopic level and reversed by Indo or Dex at microscopic level. Increased peroxidase activity -index of tissue neutrophil infiltration- in the distal ileum of LPS-treated rats was decreased by α-MSH and this effect was reversed by pretreatment with Indo. In conclusion, the neuropeptide α-MSH has a beneficial effect on endotoxin-induced distal intestinal lesions by a mechanism which probably involves nitric oxide and COX-1 derived prostaglandins. |
| Starting Page | 2077 |
| Ending Page | 2082 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/S0196-9781(01)00551-4 |
| Alternate Webpage(s) | https://api.elsevier.com/content/article/pii/S0196978101005514 |
| Alternate Webpage(s) | https://www.sciencedirect.com/science/article/pii/S0196978101005514?dgcid=api_sd_search-api-endpoint |
| Alternate Webpage(s) | https://doi.org/10.1016/S0196-9781%2801%2900551-4 |
| Volume Number | 22 |
| Journal | Peptides |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
