Extract of Synedrella nodiflora (L) Gaertn exhibits antipsychotic properties in murine models of psychosis

Abstract Background The hydro-ethanolic whole plant extract of Synedrella nodiflora (SNE) has demonstrated anticonvulsant, sedative and analgesic effects. Preliminary studies conducted in animals, SNE significantly decreased stereotypic behaviours suggesting antipsychotic potential. Coupled with the...

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Main Authors: Patrick Amoateng, Samuel Adjei, Dorcas Osei-safo, Kennedy K. E. Kukuia, Emelia Oppong Bekoe, Thomas K. Karikari, Samuel B. Kombian
Format: Article
Language:English
Published: BMC 2017-08-01
Series:BMC Complementary and Alternative Medicine
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12906-017-1901-2
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author Patrick Amoateng
Samuel Adjei
Dorcas Osei-safo
Kennedy K. E. Kukuia
Emelia Oppong Bekoe
Thomas K. Karikari
Samuel B. Kombian
author_facet Patrick Amoateng
Samuel Adjei
Dorcas Osei-safo
Kennedy K. E. Kukuia
Emelia Oppong Bekoe
Thomas K. Karikari
Samuel B. Kombian
author_sort Patrick Amoateng
collection DOAJ
description Abstract Background The hydro-ethanolic whole plant extract of Synedrella nodiflora (SNE) has demonstrated anticonvulsant, sedative and analgesic effects. Preliminary studies conducted in animals, SNE significantly decreased stereotypic behaviours suggesting antipsychotic potential. Coupled with the central nervous system depressant effects of SNE, we hypothesized that it may have utility in the management of psychosis. The present study therefore investigated the antipsychotic potential of the SNE in several murine models of psychosis. Method The primary central nervous system activities of SNE (30–3000 mg/kg, p.o) were investigated using the Irwin’s test. The novelty-induced rearing, locomotion and stereotypy counts provoked by SNE (100–1000 mg/kg, p.o) were conducted using the open-field paradigm. The antipsychotic test models used in the screening of SNE (100–1000 mg/kg, p.o) included apomorphine-induced stereotypy, rearing, locomotion and cage climbing activities. The combined effects of a low dose of SNE (100 mg/kg) with various doses of haloperidol and chlorpromazine were analysed using the apomorphine-induced cage climbing and stereotypy, respectively. The ability of SNE to cause catalepsy in naïve mice as well as its effect on haloperidol-induced catalepsy was assessed. Results SNE showed acetylcholine-like and serotonin-like activities in the Irwin test, with sedation occurring at high doses. SNE significantly reduced the frequencies of novelty- and apomorphine-induced rearing and locomotion; stereotypy behaviour and the frequency and duration of apomorphine-induced cage climbing in mice. In all the tests performed, SNE was less potent than the reference drugs used (chlorpromazine and haloperidol). In addition, SNE potentiated the effects of haloperidol and chlorpromazine on apomorphine-induced cage climbing and stereotypy activities in mice. Conclusion SNE, while exhibiting antipsychotic properties itself, can also potentiate the antipsychotic effects of chlorpromazine and haloperidol.
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spelling doaj.art-876b3e6cf4fa49c59ecafdd81591957e2022-12-22T00:02:18ZengBMCBMC Complementary and Alternative Medicine1472-68822017-08-0117111410.1186/s12906-017-1901-2Extract of Synedrella nodiflora (L) Gaertn exhibits antipsychotic properties in murine models of psychosisPatrick Amoateng0Samuel Adjei1Dorcas Osei-safo2Kennedy K. E. Kukuia3Emelia Oppong Bekoe4Thomas K. Karikari5Samuel B. Kombian6Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of GhanaDepartment of Animal Experimentation, Noguchi Memorial Institute for Medical Research (NMIMR), College of Health Sciences, University of GhanaDepartment of Chemistry, School of Physical and Mathematical Sciences, College of Basic and Applied Sciences, University of GhanaDepartment of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of GhanaDepartment of Pharmacognosy and Herbal Medicine, School of Pharmacy, College of Health Sciences, University of GhanaSchool of Life Sciences, University of WarwickDepartment of Pharmacology and Therapeutics, Faculty of Pharmacy, Health Science Center, Kuwait UniversityAbstract Background The hydro-ethanolic whole plant extract of Synedrella nodiflora (SNE) has demonstrated anticonvulsant, sedative and analgesic effects. Preliminary studies conducted in animals, SNE significantly decreased stereotypic behaviours suggesting antipsychotic potential. Coupled with the central nervous system depressant effects of SNE, we hypothesized that it may have utility in the management of psychosis. The present study therefore investigated the antipsychotic potential of the SNE in several murine models of psychosis. Method The primary central nervous system activities of SNE (30–3000 mg/kg, p.o) were investigated using the Irwin’s test. The novelty-induced rearing, locomotion and stereotypy counts provoked by SNE (100–1000 mg/kg, p.o) were conducted using the open-field paradigm. The antipsychotic test models used in the screening of SNE (100–1000 mg/kg, p.o) included apomorphine-induced stereotypy, rearing, locomotion and cage climbing activities. The combined effects of a low dose of SNE (100 mg/kg) with various doses of haloperidol and chlorpromazine were analysed using the apomorphine-induced cage climbing and stereotypy, respectively. The ability of SNE to cause catalepsy in naïve mice as well as its effect on haloperidol-induced catalepsy was assessed. Results SNE showed acetylcholine-like and serotonin-like activities in the Irwin test, with sedation occurring at high doses. SNE significantly reduced the frequencies of novelty- and apomorphine-induced rearing and locomotion; stereotypy behaviour and the frequency and duration of apomorphine-induced cage climbing in mice. In all the tests performed, SNE was less potent than the reference drugs used (chlorpromazine and haloperidol). In addition, SNE potentiated the effects of haloperidol and chlorpromazine on apomorphine-induced cage climbing and stereotypy activities in mice. Conclusion SNE, while exhibiting antipsychotic properties itself, can also potentiate the antipsychotic effects of chlorpromazine and haloperidol.http://link.springer.com/article/10.1186/s12906-017-1901-2Synedrella nodiflorachlorpromazinehaloperidolapomorphinestereotypyantipsychotic
spellingShingle Patrick Amoateng
Samuel Adjei
Dorcas Osei-safo
Kennedy K. E. Kukuia
Emelia Oppong Bekoe
Thomas K. Karikari
Samuel B. Kombian
Extract of Synedrella nodiflora (L) Gaertn exhibits antipsychotic properties in murine models of psychosis
BMC Complementary and Alternative Medicine
Synedrella nodiflora
chlorpromazine
haloperidol
apomorphine
stereotypy
antipsychotic
title Extract of Synedrella nodiflora (L) Gaertn exhibits antipsychotic properties in murine models of psychosis
title_full Extract of Synedrella nodiflora (L) Gaertn exhibits antipsychotic properties in murine models of psychosis
title_fullStr Extract of Synedrella nodiflora (L) Gaertn exhibits antipsychotic properties in murine models of psychosis
title_full_unstemmed Extract of Synedrella nodiflora (L) Gaertn exhibits antipsychotic properties in murine models of psychosis
title_short Extract of Synedrella nodiflora (L) Gaertn exhibits antipsychotic properties in murine models of psychosis
title_sort extract of synedrella nodiflora l gaertn exhibits antipsychotic properties in murine models of psychosis
topic Synedrella nodiflora
chlorpromazine
haloperidol
apomorphine
stereotypy
antipsychotic
url http://link.springer.com/article/10.1186/s12906-017-1901-2
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