Effects of centrally injected amylin on sexually behavior of male rats
Amylin (AMY) is a peptide of pancreatic origin principally involved in the carbohydrate metabolism, but that may interfere with central and peripheral dopamine (DA) pathways. The peptide, injected intracerebroventricularly (ICV) at the dose of 2.5 microg/rat, induced a decrease of copulatory activity in good copulators (GCO) and sluggish (SLU) male rats. The dose of 0.1 microg/rat did not affect significantly the sexual behavior of GCO rats, whereas AMY 0.5 microg/rat increased only the latency and reduced the frequency of ejaculation. At the dose of 2.5 microg/rat AMY antagonized the activation of sexual behavior induced by the DA receptor agonist, apomorphine administered subcutaneously (SC) at the dose of 100 microg/kg. Moreover, this inhibitory effect was blocked by the calcitonin gene-related peptide and AMY receptor antagonist, CGRP (8-37) fragment (injected ICV at the dose of 1 microg/rat). These data suggest that AMY may exert inhibitory effects on male sexual behavior in rats, probably interfering with central DA neurotransmission and with CGRP receptors.
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
1999 |
|---|---|
| Erschienen: |
1999 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:20 |
|---|---|
| Enthalten in: |
Peptides - 20(1999), 3 vom: 01., Seite 379-82 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Clementi, G [VerfasserIn] |
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| Themen: |
119911-68-1 |
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| Anmerkungen: |
Date Completed 14.10.1999 Date Revised 17.03.2022 published: Print Citation Status MEDLINE |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM103785086 |
|---|
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| 245 | 1 | 0 | |a Effects of centrally injected amylin on sexually behavior of male rats |
| 264 | 1 | |c 1999 | |
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| 500 | |a Date Completed 14.10.1999 | ||
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| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Amylin (AMY) is a peptide of pancreatic origin principally involved in the carbohydrate metabolism, but that may interfere with central and peripheral dopamine (DA) pathways. The peptide, injected intracerebroventricularly (ICV) at the dose of 2.5 microg/rat, induced a decrease of copulatory activity in good copulators (GCO) and sluggish (SLU) male rats. The dose of 0.1 microg/rat did not affect significantly the sexual behavior of GCO rats, whereas AMY 0.5 microg/rat increased only the latency and reduced the frequency of ejaculation. At the dose of 2.5 microg/rat AMY antagonized the activation of sexual behavior induced by the DA receptor agonist, apomorphine administered subcutaneously (SC) at the dose of 100 microg/kg. Moreover, this inhibitory effect was blocked by the calcitonin gene-related peptide and AMY receptor antagonist, CGRP (8-37) fragment (injected ICV at the dose of 1 microg/rat). These data suggest that AMY may exert inhibitory effects on male sexual behavior in rats, probably interfering with central DA neurotransmission and with CGRP receptors | ||
| 650 | 4 | |a Journal Article | |
| 650 | 7 | |a Amyloid |2 NLM | |
| 650 | 7 | |a Anti-Ulcer Agents |2 NLM | |
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| 700 | 1 | |a Drago, F |e verfasserin |4 aut | |
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