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Gongronema latifolium modulates Rauwolfia vomitoria-induced behaviour and histomorphology of the cerebral cortex / Gongronema latifolium modula los cambios de comportamiento e histomorfología de la corteza cerebral inducidos por Rauwolfia vomitoria
Ekong, Moses B; Peter, Aniekan I; Ekpene, Ubong U; Bassey, Enobong I; Eluwa, Mokutima A; Akpanabiatu, Monday I; Ekanem, Theresa B.
  • Ekong, Moses B; University of Uyo. Faculty of Basic Medical Sciences. Department of Anatomy. Uyo. NG
  • Peter, Aniekan I; University of Uyo. Faculty of Basic Medical Sciences. Department of Anatomy. Uyo. NG
  • Ekpene, Ubong U; University of Uyo Teaching Hospital. Department of Surgery. Uyo. NG
  • Bassey, Enobong I; University of Uyo. Faculty of Basic Medical Sciences. Department of Anatomy. Uyo. NG
  • Eluwa, Mokutima A; University of Calabar. Faculty of Basic Medical Sciences. Department of Anatomy. Calabar. NG
  • Akpanabiatu, Monday I; University of Calabar. Faculty of Basic Medical Sciences. Department of Anatomy. Calabar. NG
  • Ekanem, Theresa B; University of Calabar. Faculty of Basic Medical Sciences. Department of Anatomy. Calabar. NG
Int. j. morphol ; 33(1): 77-84, Mar. 2015. ilus
Article in English | LILACS | ID: lil-743767
ABSTRACT
Rauwolfia vomitoria (RV) has potent sedative effect, which may result in severe unpleasant consequences if not controlled. This necessitated this study on the effect of Gongronema latifolium (GL) on RV-induced behaviour, biochemical activities, and histomorphology of the cerebral cortex. Eighteen male Wistar rats of average weight 266 g were grouped into three (1­3). Group 1 was the control administered 0.5 mL of Tween®20, while groups 2 and 3 were administered 150 mg/kg of RV, and a combination of 150 mg/kg of RV and 200 mg/kg of GL (RV+GL), respectively for seven days. Twelve hours after treatments, open field neurobehavioral test was carried-out and the animals euthanized. Their sera were analyzed, and their cerebral cortices routinely processed by H&E method. There was lower (p<0.05) ambulatory, rearing and freezing activities in the RV group, while there was no difference in aspartate aminotransferase, alanine aminotransferase and alkaline phosphatase activities, as well as serum cholesterol and triglycerides levels in all the groups. Cerebral cortical neurohistology of RV and RV+GL groups showed most neurons appearing hypertrophied with pyknotic nuclei in some, and less cellular population compared with the control group. RV produces sedative behaviour, and cerebral cortical neurohistological changes, which GL combination may help modulate.
RESUMEN
Rauwolfia vomitoria (RV) tiene un efecto sedante potente, el que puede provocar graves consecuencias si no es controlado. Se estudió el efecto de Gongronema latifolium (GL) sobre el comportamiento inducido por RV, como también en las actividades bioquímicas, e histomorfología de la corteza cerebral. Dieciocho ratas macho Wistar con un peso promedio de 266 g, fueron separadas en tres Grupos (1­3). El Grupo 1 (control) recibió 0,5 mL de Tween® 20, mientras que a los Grupos 2 y 3 se les administró, durante siete días, 150 mg/kg de RV y una combinación de 150 mg/kg de RV y 200 mg/kg de GL (RV + GL), respectivamente. Doce horas después de los tratamientos y pruebas neuroconductuales de campo abierto, los animales fueron sacrificados. Se analizaron los sueros y cortezas cerebrales, los cuales fueron procesados y teñidos on HE. Se observó menor actividad ambulatoria y de congelación (p<0,05) en el grupo RV, mientras que no hubo diferencia en la actividad aspartato aminotransferasa sérica y de fosfatasa alcalina, así como tampoco en los niveles de colesterol y triglicéridos séricos en todos los grupos. La neurohistología cortical cerebral de los grupos RV y RV + GL mostró que la mayoría de las neuronas aparecen hipertrofiadas con núcleos picnóticos, y una menor cantidad celular en comparación con el grupo control. La RV produce un comportamiento sedante, y cambios neurohistológicos a nivel de la corteza cerebral lo que podría ser modulado al combinarse con GL.
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Full text: Available Index: LILACS (Americas) Main subject: Behavior, Animal / Plant Extracts / Cerebral Cortex / Apocynaceae Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2015 Type: Article Affiliation country: Nigeria Institution/Affiliation country: University of Calabar/NG / University of Uyo Teaching Hospital/NG / University of Uyo/NG

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Full text: Available Index: LILACS (Americas) Main subject: Behavior, Animal / Plant Extracts / Cerebral Cortex / Apocynaceae Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2015 Type: Article Affiliation country: Nigeria Institution/Affiliation country: University of Calabar/NG / University of Uyo Teaching Hospital/NG / University of Uyo/NG