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Acute caffeine reverses the disruptive effects of chronic fluoxetine on the sexual behavior of female and male rats.

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Title: Acute caffeine reverses the disruptive effects of chronic fluoxetine on the sexual behavior of female and male rats.
Authors: González Cautela, Brunella V. (AUTHOR), Quintana, Gonzalo R. (AUTHOR), Akerman, Jessica (AUTHOR), Pfaus, James G. (AUTHOR)
Source: Psychopharmacology. Mar2021, Vol. 238 Issue 3, p755-764. 10p. 3 Graphs.
Subjects: Caffeine, Human sexuality, Serotonin uptake inhibitors, Estradiol benzoate, Fluoxetine, Male ejaculation, Female orgasm, Orgasm
Abstract: Rationale: Sexual side effects of chronic treatment with selective serotonin reuptake inhibitors (SSRIs) in humans include anorgasmia and loss of sexual desire and/or arousal which interferes with treatment compliance. There are few options at present to reduce these effects. Because orgasm and desire are mediated in part by activation of sympathetic arousal, we asked whether the sympathomimetic effects of acute caffeine treatment could reverse these effects. Objective: The present study examined whether acute treatment with caffeine (CAF; 10 or 20 mg/kg, ip) versus vehicle could ameliorate the disruption of appetitive and consummatory measures of copulatory behavior produced by chronic fluoxetine (10 mg/kg, sc) in adult, sexually active female or male rats. Methods: Sexually experienced female or male rats received daily injections of FLU over a 24-day period and were tested for sexual behaviors five times at 4-day intervals during this period in bilevel pacing chambers. Females had been ovariectomized and given hormone replacement with estradiol benzoate and progesterone prior to each test. Males were left gonadally intact. Four days after the final FLU test, rats were randomly assigned to one of the three doses of CAF and received ip injections of CAF or the saline vehicle 60 min before testing. Results: Chronic FLU reduced solicitations and lordosis over time in females and reduced the number of ejaculations in males. Both doses of CAF restored solicitations and lordosis in females and ejaculations in males. On their own, both doses of CAF increased females' pacing behavior and the number of mounts and intromissions in the males. Conclusions: Stimulation of sympathetic outflow by CAF may constitute a readily accessible on-demand treatment for the sexual side-effects of SSRIs. [ABSTRACT FROM AUTHOR]
Copyright of Psychopharmacology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Acute caffeine reverses the disruptive effects of chronic fluoxetine on the sexual behavior of female and male rats.
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  Data: <searchLink fieldCode="AR" term="%22González+Cautela%2C+Brunella+V%2E%22">González Cautela, Brunella V.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Quintana%2C+Gonzalo+R%2E%22">Quintana, Gonzalo R.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Akerman%2C+Jessica%22">Akerman, Jessica</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pfaus%2C+James+G%2E%22">Pfaus, James G.</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="DE" term="%22Caffeine%22">Caffeine</searchLink><br /><searchLink fieldCode="DE" term="%22Human+sexuality%22">Human sexuality</searchLink><br /><searchLink fieldCode="DE" term="%22Serotonin+uptake+inhibitors%22">Serotonin uptake inhibitors</searchLink><br /><searchLink fieldCode="DE" term="%22Estradiol+benzoate%22">Estradiol benzoate</searchLink><br /><searchLink fieldCode="DE" term="%22Fluoxetine%22">Fluoxetine</searchLink><br /><searchLink fieldCode="DE" term="%22Male+ejaculation%22">Male ejaculation</searchLink><br /><searchLink fieldCode="DE" term="%22Female+orgasm%22">Female orgasm</searchLink><br /><searchLink fieldCode="DE" term="%22Orgasm%22">Orgasm</searchLink>
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  Data: Rationale: Sexual side effects of chronic treatment with selective serotonin reuptake inhibitors (SSRIs) in humans include anorgasmia and loss of sexual desire and/or arousal which interferes with treatment compliance. There are few options at present to reduce these effects. Because orgasm and desire are mediated in part by activation of sympathetic arousal, we asked whether the sympathomimetic effects of acute caffeine treatment could reverse these effects. Objective: The present study examined whether acute treatment with caffeine (CAF; 10 or 20 mg/kg, ip) versus vehicle could ameliorate the disruption of appetitive and consummatory measures of copulatory behavior produced by chronic fluoxetine (10 mg/kg, sc) in adult, sexually active female or male rats. Methods: Sexually experienced female or male rats received daily injections of FLU over a 24-day period and were tested for sexual behaviors five times at 4-day intervals during this period in bilevel pacing chambers. Females had been ovariectomized and given hormone replacement with estradiol benzoate and progesterone prior to each test. Males were left gonadally intact. Four days after the final FLU test, rats were randomly assigned to one of the three doses of CAF and received ip injections of CAF or the saline vehicle 60 min before testing. Results: Chronic FLU reduced solicitations and lordosis over time in females and reduced the number of ejaculations in males. Both doses of CAF restored solicitations and lordosis in females and ejaculations in males. On their own, both doses of CAF increased females' pacing behavior and the number of mounts and intromissions in the males. Conclusions: Stimulation of sympathetic outflow by CAF may constitute a readily accessible on-demand treatment for the sexual side-effects of SSRIs. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Psychopharmacology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s00213-020-05728-0
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      – TitleFull: Acute caffeine reverses the disruptive effects of chronic fluoxetine on the sexual behavior of female and male rats.
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              Text: Mar2021
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