<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Gastric ulcer is one of the common cause of hospital consultation with an increasing prevalence worldwide and it is traditionally managed with herbal medicine in the developing countries. This study investigated the gastroprotective effects of methanol extract of <italic>Eremomastax speciosa</italic> leaf in rats. Cold maceration in 80% methanol was adopted during extract preparation while gas chromatography mass spectroscopy (GC-MS) was employed in the phytochemical analysis. The doses of 25, 50 and 100 mg/kg E. speciosa were used on ethanol-and indomethacin-induced gastric ulcer models in rats. The shay rat method was used to determine the effects of ESE on gastric acidity while the anticholinergic and antihistaminic activities were investigated on isolated rabbit jejunum <italic>ex vivo</italic>. The GC-MS analysis identified six bioactive compounds. Both ESE and cimetidine significantly (p &lt; 0.05) reduced the severity of indomethacin- and ethanol-induced gastric injuries and gastric acid contents in Shay rats. The extract elicited concentration-dependent relaxation of isolated rabbit jejunum and reduced the contraction induced by both acetylcholine and histamine in the same tissue. The findings showed that ESE protected the rats against chemical-induced gastric ulcer through anticholinergic and antihistaminic mechanisms.</p></abstract>

Gastric ulcer is one of the common cause of hospital consultation with an increasing prevalence worldwide and it is traditionally managed with herbal medicine in the developing countries. This study investigated the gastroprotective effects of methanol extract of Eremomastax speciosa leaf in rats. Cold maceration in 80% methanol was adopted during extract preparation while gas chromatography mass spectroscopy (GC-MS) was employed in the phytochemical analysis. The doses of 25, 50 and 100 mg/kg E. speciosa were used on ethanol-and indomethacin-induced gastric ulcer models in rats. The shay rat method was used to determine the effects of ESE on gastric acidity while the anticholinergic and antihistaminic activities were investigated on isolated rabbit jejunum ex vivo. The GC-MS analysis identified six bioactive compounds. Both ESE and cimetidine significantly (p < 0.05) reduced the severity of indomethacin- and ethanol-induced gastric injuries and gastric acid contents in Shay rats. The extract elicited concentration-dependent relaxation of isolated rabbit jejunum and reduced the contraction induced by both acetylcholine and histamine in the same tissue. The findings showed that ESE protected the rats against chemical-induced gastric ulcer through anticholinergic and antihistaminic mechanisms.

Gastroprotective effects of methanol extract of <italic>Eremomastax speciosa</italic> leaf harvested in Southern part of Nigeria in rat

The EuroBiotech Journal

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Gastroprotective effects of methanol extract of  leaf harvested in Southern part of Nigeria in rat

Gastric ulcer is one of the common cause of hospital consultation with an increasing prevalence worldwide and it is traditionally managed with herbal medicine...

Gastroprotective effects of methanol extract of Eremomastax speciosa leaf harvested in Southern part of Nigeria in rat

Article Category: Research Article

Published Online: Oct 27, 2018

Page range: 200 - 208

DOI: https://doi.org/10.2478/ebtj-2018-0050

Keywords
Acetylcholine, antiulcer, histamine, indomethacin

© 2018 Samuel O. Onoja, Osborn Chinagorom, Chinyere B. C. Ikpa, Kelechi G. Madubuike, Ihechiluru I. Ezeigbo, Solomon N. Ijioma, Aruh O. Anaga, Maxwell I. Ezeja, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Gastroprotective effects of methanol extract of Eremomastax speciosa leaf harvested in Southern part of Nigeria in rat

Article Category: Research Article

Published Online: Oct 27, 2018

Page range: 200 - 208

DOI: https://doi.org/10.2478/ebtj-2018-0050

KeywordsAcetylcholine, antiulcer, histamine, indomethacin

© 2018 Samuel O. Onoja, Osborn Chinagorom, Chinyere B. C. Ikpa, Kelechi G. Madubuike, Ihechiluru I. Ezeigbo, Solomon N. Ijioma, Aruh O. Anaga, Maxwell I. Ezeja, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
Acetylcholine, antiulcer, histamine, indomethacin