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Mendeley readers
| Title |
Effect of the 5-HT4 receptor agonist tegaserod on the expression of GRK2 and GRK6 in the rat gastrointestinal tract
|
|---|---|
| Published in |
BMC Research Notes, June 2018
|
| DOI | 10.1186/s13104-018-3495-2 |
| Pubmed ID | |
| Authors |
Teshome Nedi, Paul J. White, Ian M. Coupar, Helen R. Irving |
| Abstract |
Tegaserod is a 5-hydroxytryptamine type 4 (5-HT4) receptor agonist, formerly used in treating constipation predominant irritable bowel syndrome, which desensitizes 5-HT4 receptors in rat oesophagus and colon in vitro. Desensitization of 5-HT4 receptors is regulated by G-protein coupled receptor kinases. This study was designed to assess the effect of 5-HT4 receptor activation on the expression of GRK2 and GRK6 in the rat oesophagus and distal colon by acute administration of tegaserod. Rats were treated with a single dose of tegaserod (5 mg/kg) and tissue samples of the oesophagus and distal colon were prepared and level of GRK2 and GRK6 protein expression was determined using western blotting. The immunodensity of GRK2 and GRK6 was normalized against the loading control β-actin and compared with control animals. Acute administration of tegaserod for 1, 2, 3, 4, 6, and 8 h did not change significantly the immunodensity of GRK2 or GRK6 in the oesophagus or GRK2 in the distal colon when compared with control animals. This may indicate that the basal level of GRK2 and GRK6 expression is sufficient to regulate the desensitization of 5-HT4 receptors in acute drug treatment. |
Mendeley readers
The data shown below were compiled from readership statistics for 7 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 7 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 2 | 29% |
| Student > Bachelor | 1 | 14% |
| Lecturer | 1 | 14% |
| Student > Master | 1 | 14% |
| Unknown | 2 | 29% |
| Readers by discipline | Count | As % |
|---|---|---|
| Pharmacology, Toxicology and Pharmaceutical Science | 1 | 14% |
| Biochemistry, Genetics and Molecular Biology | 1 | 14% |
| Nursing and Health Professions | 1 | 14% |
| Medicine and Dentistry | 1 | 14% |
| Neuroscience | 1 | 14% |
| Other | 0 | 0% |
| Unknown | 2 | 29% |