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Anokwah D, Asante-Kwatia E, Asante J, Obeng-Mensah D, Danquah CA, Amponsah IK, Ameyaw EO, Biney RP, Obese E, Oberer L, Amoako DG, Abia ALK, Mensah AY. Antibacterial, Resistance Modulation, Anti-Biofilm Formation, and Efflux Pump Inhibition Properties of Loeseneriella africana (Willd.) N. Halle (Celastraceae) Stem Extract and Its Constituents. Microorganisms 2023; 12:7. [PMID: 38276176 PMCID: PMC10819663 DOI: 10.3390/microorganisms12010007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/02/2023] [Accepted: 12/13/2023] [Indexed: 01/27/2024] Open
Abstract
This study investigated the antibacterial, resistance modulation, biofilm inhibition, and efflux pump inhibition potentials of Loeseneriella africana stem extract and its constituents. The antimicrobial activity was investigated by the high-throughput spot culture growth inhibition (HT-SPOTi) and broth microdilution assays. The resistance modulation activity was investigated using the anti-biofilm formation and efflux pump inhibition assays. Purification of the extract was carried out by chromatographic methods, and the isolated compounds were characterized based on nuclear magnetic resonance, Fourier transform infrared and mass spectrometry spectral data and comparison with published literature. The whole extract, methanol, ethyl acetate, and pet-ether fractions of L. africana all showed antibacterial activity against the test bacteria with MICs ranging from 62.5 to 500.0 µg/mL The whole extract demonstrated resistance modulation effect through strong biofilm inhibition and efflux pump inhibition activities against S. aureus ATCC 25923, E. coli ATCC 25922 and P. aeruginosa ATCC 27853. Chromatographic fractionation of the ethyl acetate fraction resulted in the isolation of a triterpenoid (4S,4αS,6αR,6βS,8αS,12αS,12βR,14αS,14βR)-4,4α,6β,8α,11,11,12β,14α-Octamethyloctadecahydropicene-1,3(2H,4H)-dione) and a phytosterol (β-sitosterol). These compounds showed antibacterial activity against susceptible bacteria at a MIC range of 31-125 µg/mL and potentiated the antibacterial activity of amoxicillin (at ¼ MIC of compounds) against E. coli and P. aeruginosa with modulation factors of 32 and 10, respectively. These compounds also demonstrated good anti-biofilm formation effect at a concentration range of 3-100 µg/mL, and bacterial efflux pump inhibition activity at ½ MIC and ¼ MIC against E. coli and P. aeruginosa. Loeseneriella africana stem bark extracts and constituents elicit considerable antibacterial, resistance modulation, and biofilm and efflux pump inhibition activities. The results justify the indigenous uses of L. africana for managing microbial infections.
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Affiliation(s)
- Daniel Anokwah
- School of Pharmacy and Pharmaceutical Sciences, College of Health and Allied Sciences, University of Cape Coast, PMB, Cape Coast, Ghana; (J.A.); (D.O.-M.); (E.O.A.); (R.P.B.); (E.O.)
| | - Evelyn Asante-Kwatia
- Department of Pharmacognosy, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, PMB, Kumasi, Ghana; (E.A.-K.); (I.K.A.); (A.Y.M.)
| | - Jonathan Asante
- School of Pharmacy and Pharmaceutical Sciences, College of Health and Allied Sciences, University of Cape Coast, PMB, Cape Coast, Ghana; (J.A.); (D.O.-M.); (E.O.A.); (R.P.B.); (E.O.)
| | - Daniel Obeng-Mensah
- School of Pharmacy and Pharmaceutical Sciences, College of Health and Allied Sciences, University of Cape Coast, PMB, Cape Coast, Ghana; (J.A.); (D.O.-M.); (E.O.A.); (R.P.B.); (E.O.)
| | - Cynthia Amaning Danquah
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, PMB, Kumasi, Ghana;
| | - Isaac Kingsley Amponsah
- Department of Pharmacognosy, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, PMB, Kumasi, Ghana; (E.A.-K.); (I.K.A.); (A.Y.M.)
| | - Elvis Ofori Ameyaw
- School of Pharmacy and Pharmaceutical Sciences, College of Health and Allied Sciences, University of Cape Coast, PMB, Cape Coast, Ghana; (J.A.); (D.O.-M.); (E.O.A.); (R.P.B.); (E.O.)
| | - Robert Peter Biney
- School of Pharmacy and Pharmaceutical Sciences, College of Health and Allied Sciences, University of Cape Coast, PMB, Cape Coast, Ghana; (J.A.); (D.O.-M.); (E.O.A.); (R.P.B.); (E.O.)
| | - Ernest Obese
- School of Pharmacy and Pharmaceutical Sciences, College of Health and Allied Sciences, University of Cape Coast, PMB, Cape Coast, Ghana; (J.A.); (D.O.-M.); (E.O.A.); (R.P.B.); (E.O.)
| | - Lukas Oberer
- Novartis Institutes for BioMedical Research, CH-4056 Basel, Switzerland;
| | - Daniel Gyamfi Amoako
- Antimicrobial Research Unit, College of Health Sciences, University of KwaZulu-Natal, Durban 4001, South Africa; (D.G.A.); (A.L.K.A.)
| | - Akebe Luther King Abia
- Antimicrobial Research Unit, College of Health Sciences, University of KwaZulu-Natal, Durban 4001, South Africa; (D.G.A.); (A.L.K.A.)
- Environmental Research Foundation, Westville 3630, South Africa
| | - Abraham Yeboah Mensah
- Department of Pharmacognosy, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, PMB, Kumasi, Ghana; (E.A.-K.); (I.K.A.); (A.Y.M.)
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Antwi-Adjei M, Obese E, Adakudugu EA, Henneh IT, Biney RP, Aboagye B, Amoani B, Anokwah D, Ameyaw EO. Modulating Effects of the Hydroethanolic Leaf Extract of Persicaria lanigera R. Br. Soják (Polygonaceae) against Acute Inflammation. ScientificWorldJournal 2023; 2023:5567410. [PMID: 37469933 PMCID: PMC10352536 DOI: 10.1155/2023/5567410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 06/27/2023] [Accepted: 06/29/2023] [Indexed: 07/21/2023] Open
Abstract
Plant species have been used traditionally to treat numerous inflammatory disorders because of their known medicinal properties. This study aimed to assess the anti-inflammatory effect of aqueous ethanolic leaf extract of Persicaria lanigera using acute inflammatory models. The safety profile of the Persicaria lanigera extract was assessed using an acute toxicity model. The anti-inflammatory effect of the Persicaria lanigera leaf extract (100-600 mg·kg-1, p.o.) was studied in carrageenan-induced paw oedema, zymosan-induced knee joint arthritis, and histamine-induced paw oedema in Sprague-Dawley rats (n = 5). It was observed that the Persicaria lanigera leaf extract administered prophylactically significantly inhibited paw oedema from 99.01 ± 12.59 to 59.10 ± 4.94%, 56.08 ± 3.65%, and 48.62 ± 3.27% at 100 mg·kg-1, 300 mg·kg-1, and 600 mg·kg-1, while the standard drug, aspirin, showed 41.84 ± 9.25% in carrageenan-induced paw oedema, respectively. Furthermore, the extract decreased knee joint inflammation significantly from 62.43 ± 5.73% to 32.07 ± 2.98% and 24.33 ± 8.58% at 300 mg·kg-1 and 600 mg·kg-1 in zymosan-induced knee joint inflammation, respectively. In the histamine-induced paw oedema model, the extract significantly inhibited oedema to 61.53 ± 9.17%, 54.21 ± 9.38%, and 54.22 ± 9.37% at the same doses. Aqueous ethanolic leaf extract of Persicaria lanigera is safe and attenuates inflammation in acute inflammation models.
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Affiliation(s)
- Meshack Antwi-Adjei
- Department of Pharmacology, School of Medical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Ernest Obese
- Department of Pharmacotherapeutics and Pharmacy Practice, School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Emmanuel Awiintig Adakudugu
- Department of Pharmacotherapeutics and Pharmacy Practice, School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Isaac Tabiri Henneh
- Department of Pharmacotherapeutics and Pharmacy Practice, School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Robert Peter Biney
- Department of Pharmacotherapeutics and Pharmacy Practice, School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Benjamin Aboagye
- Department of Forensic Sciences, School of Biological Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Benjamin Amoani
- Department of Biomedical Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Daniel Anokwah
- Department of Pharmacognosy and Herbal Medicine, School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Elvis Ofori Ameyaw
- Department of Pharmacotherapeutics and Pharmacy Practice, School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
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Anokwah D, Kwatia EA, Amponsah IK, Jibira Y, Harley BK, Ameyaw EO, Obese E, Biney RP, Mensah AY. Evaluation of the anti-inflammatory and antioxidant potential of the stem bark extract and some constituents of Aidia genipiflora (DC.) dandy (rubiaceae). Heliyon 2022; 8:e10082. [PMID: 36042726 PMCID: PMC9420343 DOI: 10.1016/j.heliyon.2022.e10082] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 06/04/2022] [Accepted: 07/21/2022] [Indexed: 11/28/2022] Open
Abstract
Aidia genipiflora (DC.) Dandy (Rubiaceae) is used to treat various microbial and inflammatory conditions by traditional healers in West African countries. However, there is no information on anti-inflammatory potential of A. genipiflora. This work therefore provides information on the anti-inflammatory and the antioxidant activities of the stem bark extracts and some bioactive constituents of Aidia genipiflora. Method The anti-inflammatory activities of the extracts and compounds from A. genipiflora were investigated using the carrageenan-induced footpad oedema assay and the egg albumin denaturation assay. The antioxidant activities of the extract and compounds were investigated using the DPPH radical scavenging assay and the phosphomolybdenum total antioxidant capacity assay. The whole extract of A. genipiflora was also investigated for its acute oral toxicity using the fixed-dose procedure described by the Organization for Economic Cooperation Development guidelines. Result The whole extract showed no acute toxicity effect and the LD50 was estimated to be greater than 3000 mg/kg body weight. The whole extract, methanol, and ethyl acetate fractions (30, 100, and 300 mg/kg) showed in vivo anti-inflammatory activity with respective percentage inhibition of oedema of 45.11 ± 3.41, 31.12 ± 3.42 and 29.28 ± 3.58 (p < 0.001) at the highest dose of 300 mg/kg. Diclofenac, used as a reference drug, gave a % inhibition of 48.94 ± 3.58. The compounds isolated from A. genipiflora demonstrated in-vitro anti-inflammatory activity at the IC50 range (16-96 μg/mL) compared to diclofenac (IC50 of 74.48 μg/mL). Oleanonic acid (AG1) and D-mannitol (AG4) further demonstrated in vivo anti-inflammatory activity (ED50 = 20.61 ± 1.29; 23.51 ± 1.26 mg/kg respectively) which was less potent compared to diclofenac (ED50 = 12.50 ± 1.41 mg/kg) in the carrageenan-induced oedema assay. The whole extract, pet. ether, ethyl acetate, and methanol fractions of A. genipiflora exhibited DPPH scavenging activities with respective IC50 of 222.2, 169.7, 121.5, and 40.7 μg/mL. The whole extract of A. genipiflora exhibited considerable total antioxidant capacity with respective values of 248.5 mg/g of ascorbic acid equivalent. All the compounds exhibited low DPPH scavenging activity with IC50 (64-86 μg/mL), compared to ascorbic acid (IC50 of 3.13 ± 1.20 μg/mL). These results highlight the anti-inflammatory and antioxidant activities of Aidia genipiflora stem bark extract and its constituents as evidence to support its traditional uses.
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Affiliation(s)
- Daniel Anokwah
- School of Pharmacy and Pharmaceutical Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Evelyn Asante Kwatia
- Department of Pharmacognosy, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Isaac Kingsley Amponsah
- Department of Pharmacognosy, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Yakubu Jibira
- Department of Pharmacology and Toxicology, School of Pharmacy and Pharmaceutical Sciences, University for Development Studies, Tamale, Ghana
| | | | - Elvis Ofori Ameyaw
- School of Pharmacy and Pharmaceutical Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Ernest Obese
- School of Pharmacy and Pharmaceutical Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Robert Peter Biney
- School of Pharmacy and Pharmaceutical Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Abraham Yeboah Mensah
- Department of Pharmacognosy, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Kukuia KKE, Torbi J, Amoateng P, Adutwum-Ofosu KK, Koomson AE, Appiah F, Tagoe TA, Mensah JA, Ameyaw EO, Adi-Dako O, Amponsah SK. Gestational iron supplementation reverses depressive-like behavior in post-partum Sprague Dawley rats: Evidence from behavioral and neurohistological studies. IBRO Neurosci Rep 2022; 12:280-296. [PMID: 35746978 PMCID: PMC9210498 DOI: 10.1016/j.ibneur.2022.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 04/13/2022] [Accepted: 04/15/2022] [Indexed: 11/25/2022] Open
Abstract
Background Postpartum depression is a mood disorder that affects about 9–20% of women after child birth. Reports suggest that gestational iron deficiency can cause a deficit in behavioral, cognitive and affective functions and can precipitate depressive symptoms in mothers during the postpartum period. The present study examined the effect of iron supplementation on depressive behavior during postpartum period in a rat model. Method Female Sprague-Dawley rats were crossed. Pregnant rats received iron, fluoxetine, desferrioxamine or vehicle throughout the period of gestation. During the postpartum period, mothers from all groups were taken through the open field test (OFT), forced swim test (FST), novelty-induced hypophagia (NIH) and sacrificed for histological examination of the brains. Results Results showed that rats treated with iron-chelating agent, desferrioxamine, and vehicle during gestation exhibited increased immobility scores in the FST, increased latency to feed and reduced feeding in the NIH with corresponding decreased number of neurons and dendritic branches in the cortex of the brain. These depression-related effects were attenuated by perinatal iron supplementation which showed decreased immobility scores in the FST comparable to rats treated with fluoxetine, a clinically effective antidepressant. Iron treatment also decreased latency to feeding while increasing feeding behavior in the NIH. Iron-treated dams had a higher number of neurons with dendritic connections in the frontal cortex compared to vehicle- and desferrioxamine-treated groups. Conclusion The results suggest that, iron supplementation during gestation exerts an antidepressant-like effect in postpartum Sprague-Dawley rats, attenuates neuronal loss associated with depression and increases dendritic spine density. Iron supplementation during gestation exerts an antidepressant-like effect in postpartum Sprague-Dawley rats. Iron supplementation during gestation attenuates neuronal loss associated with depression. Iron-treated dams had a higher number of neurons with dendritic connections in the frontal cortex.
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Koomson AE, Kukuia KKE, Amoateng P, Biney RP, Tagoe TA, Mensah JA, Ameyaw EO, Torbi J, Amponsah SK. Extract of Xylopia aethiopica and its Kaurene Diterpene, Xylopic Acid, Improve Learning and Memory in Mice. IBRO Neurosci Rep 2022; 12:249-259. [PMID: 35746979 PMCID: PMC9210480 DOI: 10.1016/j.ibneur.2022.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 03/25/2022] [Indexed: 11/16/2022] Open
Affiliation(s)
- Awo Efua Koomson
- Department of Medical Pharmacology, College of Health Sciences, University of Ghana, Korle Bu, Accra, Ghana
| | - Kennedy Kwami Edem Kukuia
- Department of Medical Pharmacology, College of Health Sciences, University of Ghana, Korle Bu, Accra, Ghana
- Correspondence to: Department of Medical Pharmacology, University of Ghana Medical School College of Health Sciences, University of Ghana, Accra, Ghana.
| | - Patrick Amoateng
- Department of Pharmacology & Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, P.O Box LG 43, Legon, Accra, Ghana
- Corresponding author.
| | - Robert Peter Biney
- Department of Pharmacology and Toxicology, School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Thomas Amatey Tagoe
- Department of Physiology, College of Health Sciences, University of Ghana, Korle Bu, Accra, Ghana
| | - Jeffrey Amoako Mensah
- Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT, USA
| | - Elvis Ofori Ameyaw
- Department of Pharmacology and Toxicology, School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Joseph Torbi
- Department of Medical Pharmacology, College of Health Sciences, University of Ghana, Korle Bu, Accra, Ghana
| | - Seth Kwabena Amponsah
- Department of Medical Pharmacology, College of Health Sciences, University of Ghana, Korle Bu, Accra, Ghana
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Prah JK, Amoah S, Yartey AN, Ampofo-Asiama A, Ameyaw EO. Assessment of malaria diagnostic methods and treatments at a Ghanaian health facility. Pan Afr Med J 2021; 39:251. [PMID: 34707752 PMCID: PMC8520419 DOI: 10.11604/pamj.2021.39.251.28996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 08/08/2021] [Indexed: 11/11/2022] Open
Abstract
Introduction it has been more than a decade since the World Health Organization (WHO) recommended parasitological confirmation of malaria before treatment begins. Light microscopy and rapid diagnostic tests are currently being used for diagnosing malaria in routine clinical care settings. Many clinicians have however raised questions about the competencies of laboratory staff who perform these tests and the performance of these diagnostic methods. This study aimed at assessing the performance of microscopy and two rapid diagnostic test kits in the hands of routine laboratory staff compared to expert microscopy as well as assess the performance of clinical diagnosis. Methods this was a cross sectional study involving 799 participants of all ages who visited the out patient department of the University of Cape Coast Hospital with symptoms suggestive of malaria. Results when the different methods were compared to expert microscopy, the rapid diagnostic test kits had the highest sensitivities, Wondfo 94.83% (95% CI: 85.62-98.20) and CareStart 91.38 (95% CI: 81.02-97.14). Microscopy by laboratory staff had a sensitivity of 68.79 (95% CI: 55.46-80.46) whilst clinical diagnosis had the lowest sensitivity of 17.24 (95% CI: 8.59-29.43). Cohen´s kappa coefficient was used to measure the level of agreement of the methods with expert microscopy. Microscopy by laboratory staff, CareStart and Wondfo showed substantial measures of agreement (k = 0.737, 0.683, and 0.691 respectively). Conclusion these findings suggest that clinical diagnosis is highly unreliable whilst rapid diagnostic tests and microscopy performed by routine laboratory staff could be trusted by clinicians as reliable diagnostic methods.
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Affiliation(s)
| | - Samuel Amoah
- University of Cape Coast Hospital, Cape Coast, Ghana
| | | | | | - Elvis Ofori Ameyaw
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
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Biney RP, Benneh CK, Adongo DW, Ameyaw EO, Woode E. Evidence of an antidepressant-like effect of xylopic acid mediated by serotonergic mechanisms. Psychopharmacology (Berl) 2021; 238:2105-2120. [PMID: 33837810 DOI: 10.1007/s00213-021-05835-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 03/22/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Depression causes significant debilitating symptoms and economic burden. Current management is challenged by slow onset of action and modest efficacies of antidepressants; thus, the search for newer antidepressants remains relevant. We evaluated the antidepressant effects of a kaurene diterpene, xylopic acid (XA), in zebrafish and mouse models. METHODS The chronic unpredictable stress (CUS) protocol in zebrafish and the tail suspension test (TST), forced swim test (FST), lipopolysaccharide-induced depression-like behaviour test (LID) and repeated open space swimming test (OSST) in mice were used. We further examined the impact of depleting monoamines on XA's antidepressant effects. The contribution of glutamatergic and nitrergic pathways on the antidepressant effect of XA in mice and XA's effects on 5-HT receptors and monoamine oxidase (MAO) enzymes were also evaluated. Finally, XA's influence on neuroprotection was evaluated by measuring BDNF and oxidative stress enzymes in whole brain. XA doses (1-10 μM) in zebrafish and (10, 30, 100 mg kg-1) in mice exerted potent antidepressant-like potential in FST, TST, LID and showed fast-onset antidepressant-like property in the OSST. RESULTS The antidepressant-like properties in mice were reversed by blocking synthesis/release of serotonin but not noradrenaline using p-chlorophenylalanine and α-methyl-p-tyrosine, respectively. This antidepressant-like effect was potentiated by D-cycloserine and Nω-Nitro-L-arginine methyl ester (L-NAME) but not by D-serine and L-arginine. XA also evoked partial agonist-like effects on 5-hydroxytrptamine receptors on the rat fundus but it did not have MAO inhibition effect. It also increased BDNF, glutathione and antioxidant enzymes. CONCLUSION Therefore, xylopic acid possesses antidepressant-like effects largely mediated by serotonergic and neuroprotective mechanisms.
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Affiliation(s)
- Robert Peter Biney
- Department of Pharmacology, School of Medical Sciences, University of Cape Coast, Cape Coast, Ghana.
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana.
| | - Charles Kwaku Benneh
- Department of Pharmacology and Toxicology, School of Pharmacy, University of Health and Allied Sciences, Ho, Ghana
| | - Donatus Wewura Adongo
- Department of Pharmacology and Toxicology, School of Pharmacy, University of Health and Allied Sciences, Ho, Ghana
| | - Elvis Ofori Ameyaw
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Eric Woode
- Department of Pharmacology and Toxicology, School of Pharmacy, University of Health and Allied Sciences, Ho, Ghana
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Henneh IT, Armah FA, Ameyaw EO, Biney RP, Obese E, Boakye-Gyasi E, Adakudugu EA, Ekor M. Analgesic Effect of Ziziphus abyssinica Involves Inhibition of Inflammatory Mediators and Modulation of K ATP Channels, Opioidergic and Nitrergic Pathways. Front Pharmacol 2021; 12:714722. [PMID: 34354595 PMCID: PMC8329242 DOI: 10.3389/fphar.2021.714722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/01/2021] [Indexed: 11/13/2022] Open
Abstract
The diversity offered by natural products has timelessly positioned them as a good source for novel therapeutics for the management of diverse medical conditions, including pain. This study evaluated hydro-ethanolic root bark extract of Ziziphus abyssinica (ZAE) as well as β-amyrin and polpunonic acid isolated from the plant for analgesic property. The study also investigated the mechanism responsible for this action in the extract. The antinociceptive potential of ZAE (30, 100, and 300 mg/kg, p. o.) was assessed using the tail-immersion test (TIT), acetic acid-induced writhing test (AAT), and formalin test (FT). The extract’s effect on acute and chronic musculoskeletal pain was also assessed by administering carrageenan unilaterally into the rat gastrocnemius muscles and measuring pain at 12 h and 10 days for acute and chronic pain respectively. The involvement of pro-inflammatory mediators (prostaglandin E2, bradykinin, TNF-α, and IL-1β) was assessed. The possible pathways mediating the observed analgesic effect of ZAE were further assessed using the antagonists: naloxone, glibenclamide, NG-L-nitro-arginine methyl ester (L-NAME), atropine, nifedipine, and yohimbine in the FT. Also the analgesic effect of two triterpenoid compounds, β-amyrin and polpunonic acid, previously isolated from the plant was assessed using the TIT. The anti-nociceptive activity of ZAE was demonstrated in the TIT by the significant (p < 0.05) increase in tail withdrawal threshold in ZAE-treated mice. ZAE also markedly reduced writhing and paw licking responses in both AAT and FT and significantly (p < 0.05) attenuated both acute and chronic musculoskeletal pain. ZAE also significantly reversed hyperalgesia induced by intraplantar injection of PGE2, bradykinin, TNF-α, and IL-1β. Furthermore, data revealed the involvement of opioidergic, ATP-sensitive K+ channels and NO-cGMP pathways in the analgesic effect of ZAE. Both β-amyrin and polpunonic acid exhibited analgesic activity in the tail suspension test. Our study demonstrates ZAE as an important source of new therapeutic agents for pain management.
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Affiliation(s)
- Isaac Tabiri Henneh
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Francis Ackah Armah
- Department of Biomedical Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Elvis Ofori Ameyaw
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Robert Peter Biney
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Ernest Obese
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Eric Boakye-Gyasi
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | | | - Martins Ekor
- Department of Pharmacology, School of Medical Sciences, University of Cape Coast, Cape Coast, Ghana
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Kukuia KKE, Mensah JA, Amoateng P, Osei-Safo D, Koomson AE, Torbi J, Adongo DW, Ameyaw EO, Ben IO, Amponsah SK, Bugyei KA, Asiedu-Gyekye IJ. Glycine/NMDA Receptor Pathway Mediates the Rapid-onset Antidepressant Effect of Alkaloids From Trichilia Monadelpha. Basic Clin Neurosci 2021; 12:395-408. [PMID: 34917298 PMCID: PMC8666917 DOI: 10.32598/bcn.12.3.2838.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/26/2020] [Accepted: 12/07/2020] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION Major depressive disorder is often associated with suicidal tendencies, and this condition accentuates the need for rapid-acting antidepressants. We previously reported that Alkaloids (ALK) from Trichilia monadelpha possess antidepressant action in acute animal models of depression and that this effect is mediated through the monoamine and L-arginine-NO-cGMP pathways. This study investigated the possible rapid-onset antidepressant effect of ALK from T. monadelpha and its connection with the glycine/NMDA receptor pathway. METHODS The onset of ALK action from T. monadelpha was evaluated using the Open Space Swim Test (OSST), a chronic model of depression. The modified forced swimming and tail suspension tests were used to assess the effect of the ALK on the glycine/NMDA receptor pathway. The Instutute of Cancer Research (ICR) mice were treated with either ALK (30-300 mg/kg, orally [PO]), imipramine (3-30 mg/kg, PO), fluoxetine (3-30 mg/kg, PO), or saline. To identify the role of glycine/NMDA receptor pathway in the effect of ALK, we pretreated mice with a partial agonist of the glycine/NMDA receptor, D-cycloserine (2.5 mg/kg, intraperitoneally [IP]), and an agonist of glycine/NMDA receptor, D-serine (600 mg/kg, IP), before ALK administration. RESULTS ALK reversed immobility in mice after the second day of drug treatment in the OSST. In contrast, there was a delay in the effects induced by fluoxetine and imipramine. ALK also increased mean swimming and climbing scores in mice. ALK was more efficacious than imipramine and fluoxetine in reducing immobility and increasing distance traveled. It is noteworthy that ALK was less potent than fluoxetine and imipramine. D-cycloserine potentiated mobility observed in the ALK- and fluoxetine-treated mice. In contrast, D-serine decreased mobility in the ALK-treated mice. CONCLUSION The study results suggest that ALK from T. monadelpha exhibits rapid antidepressant action in mice, and the glycine/NMDA receptor pathway possibly mediates the observed effect.
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Affiliation(s)
- Kennedy Kwami Edem Kukuia
- Department of Medical Pharmacology, University of Ghana Medical School, College of Health Sciences, University of Ghana, Korle Bu-Accra, Ghana
- Corresponding Author:Kennedy Kwami Edem Kukuia, PhD., Address: Department of Medical Pharmacology, University of Ghana Medical School, College of Health Sciences, University of Ghana, Korle Bu-Accra, Ghana., Tel: +233 (20) 4608498, E-mail:;
| | - Jeffrey Amoako Mensah
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Utah, Salt Lake City, UT, U.S. A
| | - Patrick Amoateng
- Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, Legon-Accra, Ghana
| | - Dorcas Osei-Safo
- Department of Chemistry, School of Physical and Mathematical Sciences, College of Basic and Applied Sciences, University of Ghana, Legon-Accra, Ghana
| | - Awo Efua Koomson
- Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, Legon-Accra, Ghana
| | - Joseph Torbi
- Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, Legon-Accra, Ghana
| | - Donatus Wewura Adongo
- Department of Pharmacology and Toxicology, School of Pharmacy, University of Health and Allied Sciences, Ho, Ghana
| | - Elvis Ofori Ameyaw
- Department of Pharmacology, School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Inemesit Okon Ben
- Department of Pharmacology and Toxicology, School of Pharmacy, University of Health and Allied Sciences, Ho, Ghana
| | - Seth Kwabena Amponsah
- Department of Medical Pharmacology, University of Ghana Medical School, College of Health Sciences, University of Ghana, Korle Bu-Accra, Ghana
| | - Kwasi Agyei Bugyei
- Department of Medical Pharmacology, University of Ghana Medical School, College of Health Sciences, University of Ghana, Korle Bu-Accra, Ghana
| | - Isaac Julius Asiedu-Gyekye
- Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, Legon-Accra, Ghana
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10
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Osei SA, Biney RP, Obese E, Agbenyeku MAP, Attah IY, Ameyaw EO, Boampong JN. Xylopic acid-amodiaquine and xylopic acid-artesunate combinations are effective in managing malaria in Plasmodium berghei-infected mice. Malar J 2021; 20:113. [PMID: 33632233 PMCID: PMC7908739 DOI: 10.1186/s12936-021-03658-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 02/19/2021] [Indexed: 12/01/2022] Open
Abstract
Background Evidence of Plasmodium resistance to some of the current anti-malarial agents makes it imperative to search for newer and effective drugs to combat malaria. Therefore, this study evaluated whether the co-administrations of xylopic acid-amodiaquine and xylopic acid-artesunate combinations will produce a synergistic anti-malarial effect. Methods Antiplasmodial effect of xylopic acid (XA: 3, 10, 30, 100, 150 mg kg−1), artesunate (ART: 1, 2, 4, 8, 16 mg kg−1), and amodiaquine (AQ: 1.25, 2.5, 5, 10, 20 mg kg−1) were evaluated in Plasmodium berghei (strain ANKA)-infected mice to determine respective ED50s. Artemether/lumefantrine was used as the positive control. XA/ART and XA/AQ were subsequently administered in a fixed-dose combination of their ED50s (1:1) and the combination fractions of their ED50s (1/2, 1/4, 1/8, 1/16, and 1/32) to determine the experimental ED50s (Zexp). An isobologram was constructed to determine the nature of the interaction between XA/ART, and XA/AQ combinations by comparing Zexp with the theoretical ED50 (Zadd). Bodyweight and 30-day survival post-treatment were additionally recorded. Results ED50s for XA, ART, and AQ were 9.0 ± 3.2, 1.61 ± 0.6, and 3.1 ± 0.8 mg kg−1, respectively. The Zadd, Zexp, and interaction index for XA/ART co-administration was 5.3 ± 2.61, 1.98 ± 0.25, and 0.37, respectively while that of XA/AQ were 6.05 ± 2.0, 1.69 ± 0.42, and 0.28, respectively. The Zexp for both combination therapies lay significantly (p < 0.001) below the additive isoboles showing XA acts synergistically with both ART and AQ in clearing the parasites. High doses of XA/ART combination significantly (p < 0.05) increased the survival days of infected mice with a mean hazard ratio of 0.40 while all the XA/AQ combination doses showed a significant (p < 0.05) increase in the survival days of infected mice with a mean hazard ratio of 0.27 similar to AL. Both XA/ART and XA/AQ combined treatments significantly (p < 0.05) reduced weight loss. Conclusion Xylopic acid co-administration with either artesunate or amodiaquine produces a synergistic anti-plasmodial effect in mice infected with P. berghei.
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Affiliation(s)
- Silas Acheampong Osei
- Department of Biomedical Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana.,School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Robert Peter Biney
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana.,Department of Pharmacology, School of Medical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Ernest Obese
- School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana.,Department of Pharmacology, School of Medical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Mary Atta-Panyi Agbenyeku
- Department of Biomedical Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Isaac Yaw Attah
- Department of Biomedical Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana.,School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Elvis Ofori Ameyaw
- Department of Biomedical Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana. .,School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana.
| | - Johnson Nyarko Boampong
- Department of Biomedical Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana.,School of Pharmacy and Pharmaceutical Sciences, University of Cape Coast, Cape Coast, Ghana
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11
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Obese E, Ameyaw EO, Biney RP, Adakudugu EA, Woode E. Neuropharmacological Assessment of the Hydroethanolic Leaf Extract of Calotropis procera (Ait). R. Br. (Apocynaceae) in Mice. Scientifica (Cairo) 2021; 2021:5551380. [PMID: 34306795 PMCID: PMC8270701 DOI: 10.1155/2021/5551380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 06/11/2021] [Accepted: 06/23/2021] [Indexed: 05/10/2023]
Abstract
BACKGROUND Calotropis procera has been widely used traditionally for its analgesic and anti-inflammatory effects. It is also reportedly used in ethnomedicine for mental health disorders including epilepsy even in the absence of supporting scientific data. Thus, the potential of the plant to affect neurological functions was evaluated. METHODS Irwin's test was performed to determine the effect of the oral administration of the extract (30-3000 mg kg-1) on gross behaviour and physiological function. The activity meter, rotarod, pentylenetetrazol- (PTZ-) induced convulsion, pentobarbitone-induced sleep test, and the tail immersion tests were used to evaluate the spontaneous activity, neuromuscular function, convulsive threshold, sedation, and analgesic effects of the Calotropis procera extract (30-1000 mg/kg), respectively, in mice. RESULTS Calotropis procera extract (CPE) exhibited significant (p < 0.0001) anticonvulsant and analgesic effects. There was a significant increase in withdrawal latency of the CPE-treated animals in the tail immersion test for analgesia (p < 0.0001), while latency and duration of PTZ-induced convulsions were positively modulated. Calotropis procera extract showed significant (p < 0.0001) central nervous system depressant effects in pentobarbitone-induced hypnosis at 100-1000 mg/kg and spontaneous activity test (30-1000 mg/kg). The extract also depicted impaired motor coordination at 100-1000 mg/kg dose levels. LD50 was estimated to be above 1000 mg kg-1. CONCLUSIONS Calotropis procera extract has significant central nervous system depressant and analgesic effects in mice.
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Affiliation(s)
- Ernest Obese
- School of Pharmacy and Pharmaceutical Sciences, College of Health & Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Elvis Ofori Ameyaw
- School of Pharmacy and Pharmaceutical Sciences, College of Health & Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Robert Peter Biney
- School of Pharmacy and Pharmaceutical Sciences, College of Health & Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Emmanuel Awintiig Adakudugu
- School of Pharmacy and Pharmaceutical Sciences, College of Health & Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Eric Woode
- Department of Pharmacology, School of Pharmacy, University of Health and Allied Sciences, Ho, Ghana
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12
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Anning AS, Kwakye-Nuako G, Ameyaw EO, Mosore MT, Asare KK. In vitro activity of Erythrophleum ivorense extract against the promastigote stage of cutaneous Leishmania parasite, a member of Leishmania (Mundinia) enriettii complex isolates from Ghana. Access Microbiol 2019; 1:e000050. [PMID: 32974542 PMCID: PMC7481739 DOI: 10.1099/acmi.0.000050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 07/25/2019] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Cutaneous leishmaniasis causes physical disfigurement and impairment on affected individuals, however, little attention has been paid to it eradication. The situation of this neglected disease is complicated with the expansion of the non-human pathogenic Leishmania enriettii complex causing infection in humans. We have previously shown that the extract from Erythrophleum ivorense has leishmanicidal activity against promastigote stages of the L. enriettii complex isolate from Ghana and L eishmania donovani. The extract of E. ivorense has shown to have anti-inflammatory, wound-healing ability, antiallergic, antimalarial and antischistosomal activity. However, the concentration threshold of E. ivorense extract required for leishmanicidal activity against the emerging human pathogenic L. enriettii complex isolates is not clear. AIM To test for the concentration threshold of E. ivorense extract required to obtain ideal leishmanicidal activity against the promastigote stage of human pathogenic L. enriettii complex isolates from Ghana. METHOD The ethanolic leaf extract of E. ivorense was serially diluted and tested against the promastigote stage of the L. enriettii complex. Parasite inhibition was measured at 590 nm using a spectrophotometer after staining parasites with trypan blue. To select the threshold concentration for maximum inhibition of the promastigote stage of the L. enriettii complex, the concentration cut-off statistic was used. RESULTS The MIC of E. ivorense extract for L. enriettii promastigote inhibition was 62.3 μg ml-1. The highest promastigote inhibition was observed at 72 h. CONCLUSION We show that a MIC of 62.3 μg ml-1 of E. ivorense leaf extract exhibits an ideal leishmanicidal activity against the promastigote stage of L. enriettii complex isolates.
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Affiliation(s)
- Alberta Serwah Anning
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Godwin Kwakye-Nuako
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Elvis Ofori Ameyaw
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Mba-Tihssommah Mosore
- U. S. Naval Medical Research Unit No. 3 (NAMRU-3), Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana
| | - Kwame Kumi Asare
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
- Department of Protozoology Institute of Tropical Medicine (NEKKEN), Nagasaki University Sakamoto 1-12-4, Nagasaki 852-8523, Japan
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13
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Asante DB, Henneh IT, Acheampong DO, Kyei F, Adokoh CK, Ofori EG, Domey NK, Adakudugu E, Tangella LP, Ameyaw EO. Anti-inflammatory, anti-nociceptive and antipyretic activity of young and old leaves of Vernonia amygdalina. Biomed Pharmacother 2019; 111:1187-1203. [DOI: 10.1016/j.biopha.2018.12.147] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 12/28/2018] [Accepted: 12/31/2018] [Indexed: 12/29/2022] Open
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14
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Boakye-Gyasi E, Kasanga EA, Ameyaw EO, Abotsi WKM, Biney RP, Agyare C, Woode E. An isobolographic analysis of the anti-nociceptive effect of geraniin in combination with morphine or diclofenac. J Basic Clin Physiol Pharmacol 2018; 29:201-209. [PMID: 28988222 DOI: 10.1515/jbcpp-2017-0031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 08/10/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND Geraniin, a dehydroellagitannin, is a major component of the aqueous extract of the aerial parts of Phyllanthus muellerianus (Kuntze) Exell. (Euphorbiaceae). Several Phyllanthus species are traditionally used for painful disorders. The anti-nociceptive effects of the aqueous extract of the aerial parts of P. muellerianus and of geraniin have been scientifically established. The aim of the paper is to determine whether a combination of geraniin and diclofenac or geraniin and morphine leads to better anti-nociceptive effects. METHODS The nature of the interactions of morphine and diclofenac with geraniin was evaluated by undertaking the isobolographic analysis. Mice were treated with geraniin (3-30 mg/kg), morphine (1-10 mg/kg), and diclofenac (10-100 mg/kg) to obtain the ED50 values of the agents in the formalin test. Dose-response curves were then obtained and analyzed after the co-administration of geraniin with morphine or diclofenac in fixed ratio (1:1) combinations based on specific fractions (1/2, 1/4, and 1/8) of their respective ED50 values for the formalin test. RESULTS Geraniin was less potent than morphine but more potent than diclofenac in the formalin-induced nociception. The isobolographic analysis of geraniin/morphine (G/M) and geraniin/diclofenac combinations (G/D) at different fractions revealed the potentiation of their anti-nociceptive effects. The degrees of potentiation, which were calculated as interaction indices, showed synergism for both combinations in both phase I (G/M: 0.040, G/D: 0.017) and phase II (G/M: 0.004, G/D: 0.002) of the formalin test. CONCLUSIONS The present study demonstrates synergism for the co-administration of geraniin with both morphine and diclofenac.
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Affiliation(s)
- Eric Boakye-Gyasi
- Faculty of Pharmacy and Pharmaceutical Science, Department of Pharmacology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Ella Anle Kasanga
- Faculty of Pharmacy and Pharmaceutical Science, Department of Pharmacology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Elvis Ofori Ameyaw
- Department of Biomedical and Forensic Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Wonder Kofi Mensah Abotsi
- Faculty of Pharmacy and Pharmaceutical Science, Department of Pharmacology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Robert Peter Biney
- Department of Pharmacology, School of Medical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Christian Agyare
- Faculty of Pharmacy and Pharmaceutical Science, Department of Pharmaceutics, Kwame Nkrumah University of Science and Technology, KNUST, Kumasi, Ghana
| | - Eric Woode
- Faculty of Pharmacy and Pharmaceutical Science, Department of Pharmacology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Adinortey MB, Ansah C, Weremfo A, Adinortey CA, Adukpo GE, Ameyaw EO, Nyarko AK. DNA Damage Protecting Activity and Antioxidant Potential of Launaea taraxacifolia Leaves Extract. J Nat Sci Biol Med 2018; 9:6-13. [PMID: 29456385 PMCID: PMC5812077 DOI: 10.4103/jnsbm.jnsbm_22_17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The leaf extract of Launaea taraxacifolia commonly known as African Lettuce is used locally to treat dyslipidemia and liver diseases, which are associated with oxidative stress. Methanol extract from L. taraxacifolia leaves was tested for its antioxidant activity and its ability to protect DNA from oxidative damage. MATERIALS AND METHODS In vitro antioxidant potential of the leaf extract was evaluated using 1,1-diphenyl-2-picrylhydrazyl (DPPH), nitric oxide (NO), and hydroxyl (OH) radical scavenging assays. Ferric reducing power, total antioxidant capacity (TAC), metal chelating, and anti-lipid peroxidation ability of the extract were also examined using gallic acid, ascorbic acid, citric acid, and ethylenediaminetetraacetic acid as standards. RESULTS L. taraxacifolia leaves extract showed antioxidant activity with IC50 values of 16.18 μg/ml (DPPH), 123.3 μg/ml (NO), 128.2 μg/ml (OH radical), 97.94 μg/ml (metal chelating), 80.28 μg/ml (TAC), and 23 μg/ml (anti-lipid peroxidation activity). L. taraxacifolia leaves extract exhibited a strong capability for DNA damage protection at 20 mg/ml concentration. CONCLUSION These findings suggest that the methanolic leaf extract of L. taraxacifolia could be used as a natural antioxidant and also as a preventive therapy against diseases such as arteriosclerosis associated with DNA damage.
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Affiliation(s)
- Michael Buenor Adinortey
- Department of Biochemistry, School of Biological Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Charles Ansah
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Alexander Weremfo
- Department of Biochemistry, School of Biological Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Cynthia Ayefoumi Adinortey
- Department of Molecular Biology and Biotechnology, School of Biological Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Genevieve Etornam Adukpo
- Department of Chemistry, School of Physical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Elvis Ofori Ameyaw
- Department of Biomedical Sciences, School of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Alexander Kwadwo Nyarko
- Department of Pharmacology and Toxicology School of Pharmacy, University of Ghana, Accra, Ghana
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Boakye-Gyasi E, Henneh IT, Abotsi WKM, Ameyaw EO, Woode E. Possible mechanisms involved in the anti-nociceptive effects of hydro-ethanolic leaf extract of Ziziphus abyssinica. Pharm Biol 2017; 55:1962-1971. [PMID: 28726567 PMCID: PMC7011919 DOI: 10.1080/13880209.2017.1355927] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 06/27/2017] [Accepted: 07/11/2017] [Indexed: 05/26/2023]
Abstract
CONTEXT Various parts of Ziziphus abyssinica Hochst ex. A. Rich (Rhamnaceae) have been used in Ghanaian and African traditional medicine as an analgesic. However, there are little scientific data to support the anti-nociceptive effects of the hydro-ethanolic leaf extract of Ziziphus abyssinica (EthE) as well as the possible mechanisms involved in its anti-nociceptive effects. PURPOSE To predict possible nociceptive pathways involved in the anti-nociceptive effects of EthE. MATERIALS AND METHODS The effect of EthE (30, 100 and 300 mg/kg) on intraplantar injection of pain mediators such as interleukin-1β, tumour necrosis factor-α, prostaglandin E2 and bradykinin was evaluated in male Sprague Dawley rats using Randall-Selitto test for 5 h. The effect of specific antagonists to the opioidergic, adenosinergic, ATP-sensitive K+ channels, nitric oxide, serotonergic, muscarinic, adrenergic and voltage-gated calcium channel on the anti-nociceptive effect of EthE (100 mg/kg) was evaluated using the formalin test in male imprinting control region (ICR) mice for 1 h. RESULTS Pretreatment of the rats with EthE significantly reversed the hypernociception induced by intraplantar injection of TNF-α (F4,120 = 10.86, p < 0.0001), IL-1β (F4,120 = 14.71, p < 0.0001), bradykinin (F4,80 = 12.52, p < 0.0001) and prostaglandin E2 (F5,144 = 6.165, p = 0.0001). The anti-nociceptive effect exhibited by EthE in the formalin test was reversed by systemic administration of NG-l-nitro-arginine methyl ester, naloxone, theophylline and glibenclamide. CONCLUSIONS EthE inhibits hypernociception induced by TNF-α, IL-1β, bradykinin and prostaglandin E2. EthE exhibited anti-nociceptive effects possibly mediated through opioidergic, adenosinergic, ATP-sensitive potassium channels and nitric oxide cyclic GMP pathways.
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Affiliation(s)
- Eric Boakye-Gyasi
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Isaac Tabiri Henneh
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
- Department of Pharmacology, School of Medical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Wonder Kofi Mensah Abotsi
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Elvis Ofori Ameyaw
- Department of Biomedical Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Eric Woode
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Boakye-Gyasi E, Henneh IT, Abotsi WKM, Ameyaw EO, Woode E. Hydro-ethanolic leaf extract of Ziziphus abyssinica Hochst Ex A. Rich (Rhamnaceae) exhibits anti-nociceptive effects in murine models. BMC Complement Altern Med 2017; 17:231. [PMID: 28446160 PMCID: PMC5406998 DOI: 10.1186/s12906-017-1750-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2017] [Accepted: 04/21/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Despite substantial advances in pain research and treatment, millions of people continue to suffer from pain and this has been attributed mainly to the unavailability of effective and safer analgesics. The use of plants as medicines is still widespread and plants constitute a large source of novel phytocompounds that might become leads for the discovery of newer, effective and safer alternatives. Various parts of Ziziphus abyssinica have been used in folk medicine in several African countries as painkillers. However, there is no report on the possible anti-nociceptive effects of this plant especially the leaves, hence the need for this current study. METHODS The possible anti-nociceptive activity of hydro-ethanolic leaf extract of Ziziphus abyssinica (EthE) was assessed in rodents using chemical (acetic acid, formalin and glutamate), thermal (tail-immersion test) and mechanical/inflammatory (carrageenan) models of nociception. RESULTS EthE (30-300 mg/kg, p.o.) dose-dependently and significantly inhibited chemical-induced nociception with a maximum inhibition of 86.29 ± 2.27%, 76.34 ± 5.67%, 84.97 ± 5.35%, and 82.81 ± 5.97% respectively for acetic acid, formalin (phase 1), formalin (phase 2) and glutamate tests at its highest dose. EthE also dose-dependently and significantly increased reaction times in both tail-immersion and carrageenan-induced hypernociceptive tests. The activities of the extract in the various models were comparable with the effect of morphine hydrochloride and diclofenac sodium used as standard analgesic drugs. CONCLUSION Oral administration of hydro-ethanolic leaf extract of Ziziphus abyssinica ameliorates nocifensive behaviours associated with chemical-, thermal- and mechanical/inflammatory - induced nociceptive pain.
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Affiliation(s)
- Eric Boakye-Gyasi
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Isaac Tabiri Henneh
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
- Department of Pharmacology, School of Medical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Wonder Kofi Mensah Abotsi
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Elvis Ofori Ameyaw
- Department of Biomedical and Forensic Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Eric Woode
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Wilmot D, Ameyaw EO, Amoako-Sakyi D, Boampong JN, Quashie NB. In vivo efficacy of top five surveyed Ghanaian herbal anti-malarial products. Malar J 2017; 16:103. [PMID: 28259160 PMCID: PMC5336682 DOI: 10.1186/s12936-017-1757-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 02/28/2017] [Indexed: 01/25/2023] Open
Abstract
Background Anti-malarial herbal preparations (HPs) continue to enjoy high patronage in Ghana despite reports that the artemisinin-based combination therapy (ACT), the recommended first choice for treatment of uncomplicated malaria in the country, remains efficacious. A major issue with the use of these preparations is inadequate or unreliable data on their efficacy and quality. An assessment of the potency and quality of the most popular commercial anti-malarial HPs in Ghana was, therefore, carried out. The outcome of this investigation is herein discussed preceded by a short literature review of herbal medicines in Ghana. Methods Using a questionnaire survey of 344 individuals in parts of Ghana, five of the most frequently used HPs were identified and selected for test of their efficacy and quality. The effect of the selected compounds on Plasmodium berghei in vivo was assessed using standard methods. Results All five tested HPs (HP-A, HP-B, HP-C, HP-D and HP-E) showed chemo-suppressive activity against P. berghei in vivo. However the degree of parasites inhibition is significantly lower compared to the WHO-recommended artemether–lumefantrine combination (p < 0.05, 99.9% chemosuppression/activity, 28 days survival). Using the Solomon Saker’s Test, two of the preparations were found to contain chloroquine or compounds with chemical properties like that of chloroquine. Conclusion Popular anti-malarial HPs used in southern Ghana were found to have chemo-suppressive properties. Intentional addition of chloroquine or SCs to these preparations in order to enhance their effectiveness has serious public health concerns as it may induce cross resistance to amodiaquine, one of the partner drugs in the recommended ACT for use in Ghana.
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Affiliation(s)
- Dennis Wilmot
- Department of Biomedical and Forensic Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Elvis Ofori Ameyaw
- Department of Biomedical and Forensic Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Daniel Amoako-Sakyi
- Department of Biomedical and Forensic Sciences, University of Cape Coast, Cape Coast, Ghana
| | | | - Neils Ben Quashie
- Centre for Tropical Clinical Pharmacology and Therapeutic, School of Medicine and Dentistry, University of Ghana, Accra, Ghana. .,Noguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana.
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Asante DB, Effah-Yeboah E, Barnes P, Abban HA, Ameyaw EO, Boampong JN, Ofori EG, Dadzie JB. Corrigendum to "Antidiabetic Effect of Young and Old Ethanolic Leaf Extracts of Vernonia amygdalina: A Comparative Study". J Diabetes Res 2017; 2017:5618548. [PMID: 29349088 PMCID: PMC5733616 DOI: 10.1155/2017/5618548] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 11/16/2017] [Indexed: 11/24/2022] Open
Abstract
[This corrects the article DOI: 10.1155/2016/8252741.].
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Affiliation(s)
- Du-Bois Asante
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Emmanuel Effah-Yeboah
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Precious Barnes
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Heckel Amoabeng Abban
- Department of Clinical Nutrition and Dietetics, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Elvis Ofori Ameyaw
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Johnson Nyarko Boampong
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Eric Gyamerah Ofori
- Department of Biochemistry, School of Biological Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Joseph Budu Dadzie
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
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Woode E, Ameyaw EO, Boakye-Gyasi E, Abotsi WKM, Oppong Kyekyeku J, Adosraku R, Biney RP. Effects of an ethanol extract and the diterpene, xylopic acid, of Xylopia aethiopica fruits in murine models of musculoskeletal pain. Pharm Biol 2016; 54:2978-2986. [PMID: 27430751 DOI: 10.1080/13880209.2016.1199040] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 05/19/2016] [Accepted: 06/04/2016] [Indexed: 06/06/2023]
Abstract
CONTEXT Fruits of Xylopia aethiopica (Dunal) A. Rich. (Annonaceae) are used traditionally to manage arthritis, headache and other pain disorders. OBJECTIVE The analgesic properties of the X. aethiopica ethanol fruit extract (XAE) and xylopic acid (XA) were evaluated in musculoskeletal pain models. MATERIALS AND METHODS Acute muscle pain was induced in gastrocnemius muscle of Sprague-Dawley rats with 3% carrageenan (i.m.). Rats received XAE (30-300 mg/kg), XA (10-100 mg/kg) or morphine (1-10 mg/kg) after 12 h. Effects of XAE and XA on muscle pain were assessed by measuring post-treatment grip strength of the rats. Chronic muscle pain was similarly induced, but drug treatment was on the eighth day and effects of XAE and XA assessed with Randall-Selitto test for hyperlagesia. Acute-skeletal pain was induced in knee joints of rats with 3% carrageenan-kaolin mixture and effects determined 12-h later. Similar induction protocol was used for chronic knee pain with treatment and measurement as done for chronic muscle pain. RESULTS XAE and XA significantly and dose-dependently ameliorated both acute muscle (ED50 mg/kg: XAE = 22.9; XA = 6.2) and skeletal hyperalgesia (XAE = 39.9; XA = 17.7) induced by 3% carrageenan. Similarly, chronic skeletal hyperalgesia was reduced by XAE and XA treatment similar to morphine (ED50: XAE = 13.0; XA = 4.6). This reduction was also seen in chronic muscle hyperalgesia (ED50: XAE = 79.1; XA = 42.7). XAE and XA significantly reduced the spread of hyperalgesia to contralateral limbs in both models of chronic hyperalgesia. CONCLUSION These findings establish analgesic properties of the ethanol fruit extract of X. aethiopica and xylopic acid in musculoskeletal pain.
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Affiliation(s)
- Eric Woode
- a Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences , Kwame Nkrumah University of Science & Technology , Kumasi , Ghana
| | - Elvis Ofori Ameyaw
- b Department of Biomedical and Forensic Sciences, School of Biological Science , University of Cape Coast , Cape Coast , Ghana
| | - Eric Boakye-Gyasi
- a Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences , Kwame Nkrumah University of Science & Technology , Kumasi , Ghana
| | - Wonder Kofi Mensah Abotsi
- a Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences , Kwame Nkrumah University of Science & Technology , Kumasi , Ghana
| | - James Oppong Kyekyeku
- c Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences , Kwame Nkrumah University of Science & Technology , Kumasi , Ghana
| | - Reimmel Adosraku
- c Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences , Kwame Nkrumah University of Science & Technology , Kumasi , Ghana
| | - Robert Peter Biney
- a Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences , Kwame Nkrumah University of Science & Technology , Kumasi , Ghana
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Ameyaw EO, Kukuia KKE, Thomford AK, Kyei S, Mante PK, Boampong JN. Analgesic properties of aqueous leaf extract of Haematostaphis barteri: involvement of ATP-sensitive potassium channels, adrenergic, opioidergic, muscarinic, adenosinergic and serotoninergic pathways. J Basic Clin Physiol Pharmacol 2016; 27:557-561. [PMID: 27226099 DOI: 10.1515/jbcpp-2015-0108] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 04/21/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Pain is the most common cause of patients seeking medical advice as a result of its association with different pathologies. This study evaluated the antinociceptive property of Haematostaphis barteri as well as the possible mechanism(s) associated with its antinociceptive property. METHODS Mice were administered H. barteri (30-300 mg kg-1; p.o.), followed by intraplantar injection of 10 μL of 5% formalin into the hind paws. The pain score was determined for 1 h in the formalin test. The possible nociceptive pathways involved in the antinociceptive action of H. barteri were determined by pre-treating mice with theophylline (5 mg kg-1, a non-selective adenosine receptor antagonist), naloxone (2 mg kg-1, a non-selective opioid receptor antagonist), glibenclamide (8 mg kg-1; an ATP-sensitive K+ channel inhibitor), and atropine (3 mg kg-1; non-selective muscarinic antagonist). RESULTS H. barteri (30-300 mg kg-1) significantly and dose dependently precluded both first and second phases of nociception. Pre-treatment with naloxone had no effect on the analgesic activities of H. barteri in the first phase. Again, pre-treatment with atropine and glibenclamide did not significantly reverse the neurogenic antinociception of the extract in phase 1. However, theophylline reversed the analgesic effect of the extract in the first phase. In phase 2, theophylline had no effect on the analgesic activities of the extract. Naloxone, atropine, and glibenclamide significantly blocked the antinociception of H. barteri in the inflammatory phase of the formalin test. CONCLUSIONS H. barteri possesses antinociceptive property mediated via the opioidergic, adrenergic, muscarinic, ATP-sensitive K+ channels, and adenosinergic nociceptive pathways.
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Adongo DW, Mante PK, Edem Kukuia KK, Ameyaw EO, Woode E, Azi IH. Anxiolytic-like effect of the leaves of Pseudospondias microcarpa (A. Rich.) Engl. in mice. J Basic Clin Physiol Pharmacol 2016; 27:533-46. [PMID: 27124674 DOI: 10.1515/jbcpp-2015-0067] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 03/24/2016] [Indexed: 11/15/2022]
Abstract
BACKGROUND Pseudospondias microcarpa is a plant used for managing various diseases including CNS disorders. Previous studies showed sedative and anticonvulsant effects, suggesting possible anxiolytic activity. This study therefore assessed the anxiolytic effects of P. microcarpa hydroethanolic leaf extract (PME) in mice. METHODS In the present study, anxiolytic-like effect of the extract in behavioural paradigms of anxiety - the elevated plus maze (EPM), light/dark box (LDB), social interaction test and stress-induced hyperthermia (SIH) - was evaluated. RESULTS Mice treated with PME (30-300 mg kg-1, p.o.) exhibited anxiolytic-like activity similar to diazepam in all the anxiety models used. The extract increased open arm activity (p<0.05) in the EPM as well as increasing the time spent in the lit area in relation to the time spent in the dark area of the LDB. Sociability and preference for social novelty significantly (p<0.05-0.001) increased in mice treated with PME. In the SIH paradigm in mice, both PME and the benzodiazepine receptor agonist, diazepam, significantly (p<0.05) reduced the stress-induced increase in rectal temperature. The extract did not impair motor coordination and balance in the beam walk test. CONCLUSIONS Results of the present study indicate that PME possesses anxiolytic-like effects in mice.
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Kukuia KKE, Ameyaw EO, Woode E, Mante PK, Adongo DW. Enhancement of inhibitory neurotransmission and inhibition of excitatory mechanisms underlie the anticonvulsant effects of Mallotus oppositifolius. J Pharm Bioallied Sci 2016; 8:253-61. [PMID: 27413356 PMCID: PMC4929967 DOI: 10.4103/0975-7406.183226] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 04/04/2016] [Accepted: 04/15/2016] [Indexed: 12/03/2022] Open
Abstract
CONTEXT Mallotus oppositifolius is a shrub that is used traditionally to treat epilepsy, but its potential has not been scientifically validated. AIMS This study investigated the anticonvulsant properties and possible mechanism of action of the 70% v/v hydroalcoholic extract of the leaves of M. oppositifolius. MATERIALS AND METHODS Inprinting control region (ICR) mice (25-30 g) were pretreated with the M. oppositifolius leaf extract (10-100 mg/kg) before administering the respective convulsants (pentylenetetrazole [PTZ], picrotoxin [PTX], strychnine [STR], 4-aminopyridine [4-AP], and pilocarpine). The effect of the extract in maximal electroshock seizure (MES) model was investigated also. STATISTICAL ANALYSIS Data were presented as mean ± standard error of the mean and were analyzed with one-way analysis of variance (ANOVA) or two-way ANOVA where appropriate with Newman-Keuls or Bonferroni post hoc test respectively. P < 0.05 was considered significant. RESULTS In both PTX and PTZ test, extract delayed the onset of seizures and reduced the frequency and duration of seizures. In the STR-induced seizure test, the extract significantly delayed the onset of seizures and reduced the duration of seizures. The extract also delayed the onset of clonic and tonic seizures as well as increasing the survival of mice in the 4-AP-induced seizure test. It further reduced the duration of tonic limb extensions in the MES test. In the pilocarpine-induced status epilepticus, the extract significantly delayed the onset of clonic convulsions and reduced the frequency and duration of seizures. Moreover, the anticonvulsant effect of the extract was attenuated by flumazenil, a benzodiazepine/gamma-aminobutyric acid (GABA) receptor antagonist. CONCLUSION These findings show that the extract has anticonvulsant effect possible mediated by GABAergic, glycinergic neurotransmission, and potassium channel conductions. It may also be acting by antagonizing muscarinic receptor activation and N-Methyl-D-aspartate receptor activation.
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Affiliation(s)
- Kennedy Kwami Edem Kukuia
- Department of Pharmacology and Toxicology, University of Ghana School of Pharmacy, College of Health Sciences, University of Ghana, Accr, Ghana
| | - Elvis Ofori Ameyaw
- Department of Biomedical and Forensic Sciences, School of Biological Science, University of Cape Coast, Cape Coast, Ghana
| | - Eric Woode
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Priscilla Kolibea Mante
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Donatus Wewura Adongo
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Ameyaw EO, Koffuor GA, Asare KK, Konja D, Du-Bois A, Kyei S, Forkuo AD, Abankwah Owusu Mensah RN. Cryptolepine, an indoloquinoline alkaloid, in the management of diabetes mellitus and its associated complications. J Intercult Ethnopharmacol 2016; 5:263-73. [PMID: 27366353 PMCID: PMC4927132 DOI: 10.5455/jice.20160606124435] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 05/21/2016] [Indexed: 01/14/2023]
Abstract
Background: Effective long-term management is the key to treatment of diabetes mellitus (DM) and its complications. Aim: To ascertain the ability of cryptolepine (CRP) in managing DM and some associated complications. Materials and Methods: Changes in fasting blood sugar (FBS), body weight, response to thermally-induced pain, and semen quality were assessed in normal and alloxan-induced diabetic rats treated with CRP (10, 30, or 100 mg/kg), glibenclamide (10 mg/kg), or normal saline (2 ml/kg) per os. Hematological profile, liver and kidney function tests, lipid profile, as well as liver, kidney, and pancreas histopathological examinations were also conducted to establish possible effects of CRP treatment. Results: CRP treatment reduced (P ≤ 0.001) FBS and body weight, inhibited (P ≤ 0.05 - 0.001) the latency to tail flick or withdrawal from pain stimulus. It did not alter (P > 0.05): Hematological parameters, elevated (P ≤ 0.05 - 0.001) plasma aspartate transaminase, alanine transaminase, and gamma-glutamyl transferase, reduced (P ≤ 0.01) plasma urea, and elevated (P ≤ 0.001) plasma creatinine associated with DM. CRP, however, reversed (P ≤ 0.05 - 0.001) DM-associated elevation (P ≤ 0.05 - 0.001) of plasma cholesterol, triglycerides, and low-density lipoproteins, and the reduction in high-density lipoproteins. CRP (10-30 mg/kg) showed dose-dependent regeneration of β-islet cells but could not repair degenerated liver and kidney tissue. CRP worsens dose-dependently (P ≤ 0.001) reduced sperm quality associated with DM. Conclusion: CRP abolishes hyperglycemia, weight loss, cold allodynia, neuropathic pain, and hyperlipidemia as well as pancreatic β-islet cell damage associated with DM. It, however, does not improve liver and kidney damage and lowered semen quality.
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Affiliation(s)
- Elvis Ofori Ameyaw
- Department of Biomedical Sciences, College of Health and Allied Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
| | - George Asumeng Koffuor
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Kwame Kumi Asare
- Department of Biomedical Sciences, College of Health and Allied Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Daniels Konja
- Department of Biomedical Sciences, College of Health and Allied Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Asante Du-Bois
- Department of Biomedical Sciences, College of Health and Allied Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Samuel Kyei
- Department of Optometry, College of Health and Allied Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Arnold Donkor Forkuo
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Richard Nana Abankwah Owusu Mensah
- Department of Biomedical Sciences, College of Health and Allied Sciences, School of Allied Health Sciences, University of Cape Coast, Cape Coast, Ghana
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Kyei S, Koffuor GA, Ramkissoon P, Ameyaw EO, Asiamah EA. Anti-inflammatory effect of Heliotropium indicum Linn on lipopolysaccharide-induced uveitis in New Zealand white rabbits. Int J Ophthalmol 2016; 9:528-35. [PMID: 27162723 DOI: 10.18240/ijo.2016.04.08] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 02/14/2016] [Indexed: 01/19/2023] Open
Abstract
AIM To investigate the anti-inflammatory effect of an aqueous whole plant extract of Heliotropium indicum (HIE) on endotoxin-induced uveitis in New Zealand white rabbits. METHODS Clinical signs of uveitis including flares, iris hyperemia and miosis, were sought for and scored in 1.0 mg/kg lipopolysaccharide (LPS) -induced uveitic rabbits treated orally with HIE (30-300 mg/kg), prednisolone (30 mg/kg), or normal saline (10 mL/kg). The number of polymorphonuclear neutrophils infiltrating, the protein concentration, as well as levels of tumor necrosis factor-α (TNF-α), prostaglandin E2 (PGE2), and monocyte chemmoattrant protein-1 (MCP-1) in the aqueous humor after the various treatments were also determined. A histopathological study of the anterior uveal was performed. RESULTS The extract and prednisolone-treatment significantly reduced (P≤0.001) both the clinical scores of inflammation (1.0-1.8 compared to 4.40±0.40 in the normal saline-treated rabbits) and inflammatory cells infiltration. The level of protein, and the concentrations of TNF-α, PGE2 and MCP-1 in the aqueous humor were also significantly reduced (P≤0.001). Histopathological studies showed normal uveal morphology in the HIE and prednisolone-treated rabbits while normal saline-treated rabbits showed marked infiltration of inflammatory cells. CONCLUSION The HIE exhibits anti-inflammatory effect on LPS-induced uveitis possibly by reducing the production of pro-inflammatory mediators.
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Affiliation(s)
- Samuel Kyei
- Discipline of Optometry, School of Health Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa; Department of Optometry, School of Allied Health Sciences, University of Cape Coast, PMB, Cape Coast, Ghana
| | - George Asumeng Koffuor
- Discipline of Optometry, School of Health Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa; Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, PMB, Kumasi, Ghana
| | - Paul Ramkissoon
- Discipline of Optometry, School of Health Sciences, College of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa
| | - Elvis Ofori Ameyaw
- Department of Biomedical and Forensic Sciences, School of Allied Health Science, University of Cape Coast, PMB, Cape Coast, Ghana
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Amoateng P, Adjei S, Osei-Safo D, Ameyaw EO, Ahedor B, N'guessan BB, Nyarko AK. A hydro-ethanolic extract of Synedrella nodiflora (L.) Gaertn ameliorates hyperalgesia and allodynia in vincristine-induced neuropathic pain in rats. J Basic Clin Physiol Pharmacol 2016; 26:383-94. [PMID: 25720058 DOI: 10.1515/jbcpp-2014-0084] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 10/27/2014] [Indexed: 12/30/2022]
Abstract
BACKGROUND The hydro-ethanolic extract of Synedrella nodiflora (L.) Gaertn whole plant has demonstrated analgesic effects in acute pain models. The extract has also demonstrated anticonvulsant effects in murine models of experimental epilepsy. The present study illustrates an evaluation of the hydro-ethanolic extract of the plant for possible analgesic properties in hyperalgesia and allodynia associated with vincristine-induced neuropathy in rats. METHODS Neuropathic pain was induced in Sprague-Dawley rats by injecting 100 μg/kg of vincristine sulphate on alternative days for 6 days (days 0, 2, 4, 8, 10 and 12). Vincristine-induced cold allodynia, mechanical hyperalgesia and thermal hyperalgesia were measured pre-vincristine administration and on days 15, 17 and 19 post-vincristine administration. The rats were then treated with S. nodiflora extract (SNE) (100, 300 and 1000 mg/kg), pregabalin (10, 30 and 100 mg/kg) and distilled water as vehicle daily for 5 days and pain thresholds were measured on alternate days for 3 days. RESULTS SNE and pregabalin produced analgesic properties observed as increased paw withdrawal latencies to mechanical, tactile, cold water stimuli and thermal hyperalgesic tests during the 5 days of treatment. CONCLUSIONS The findings suggest that hydro-ethanolic extract of S. nodiflora possesses anti-hyperalgesic and anti-allodynic effects in vincristine-induced neuropathic pain in rats.
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Asante DB, Effah-Yeboah E, Barnes P, Abban HA, Ameyaw EO, Boampong JN, Ofori EG, Dadzie JB. Antidiabetic Effect of Young and Old Ethanolic Leaf Extracts of Vernonia amygdalina: A Comparative Study. J Diabetes Res 2016; 2016:8252741. [PMID: 27294153 PMCID: PMC4884890 DOI: 10.1155/2016/8252741] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 03/24/2016] [Accepted: 04/19/2016] [Indexed: 11/18/2022] Open
Abstract
The young leaves of Vernonia amygdalina are often utilized as vegetable and for medicinal purpose compared to the old leaves. This study was designed to evaluate and compare the antidiabetic effects between ethanolic leaf extracts of old and young V. amygdalina on streptozotocin (STZ) induced diabetic rat for four weeks. Preliminary screening of both young and old ethanolic extracts revealed the presence of the same phytochemicals except flavonoids which was only present in the old V. amygdalina. Difference in antioxidant power between the young and old leaf extracts was statistically significant (p < 0.05). Both leaf extracts produced a significant (p < 0.05) antihyperglycaemic effect. Also results from treated rats revealed increasing effect in some haematological parameters. Similarly, the higher dose (300 mg/kg) of both extracts significantly (p < 0.05) reduced serum ALT, AST, and ALP levels as compared to the diabetic control rats. Results also showed significant (p < 0.05) decrease in LDL-C and VLDL-C in the extract-treated rats with a corresponding increase in HDL-C, as compared to the diabetic control rats. Moreover histopathological analysis revealed ameliorative effect of pathological insults induced by the STZ in the pancreas, liver, and spleen, most significantly the regeneration of the beta cells of the islets of Langerhans in treated rats.
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Affiliation(s)
- Du-Bois Asante
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
- *Du-Bois Asante:
| | - Emmanuel Effah-Yeboah
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Precious Barnes
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Heckel Amoabeng Abban
- Department of Clinical Nutrition and Dietetics, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Elvis Ofori Ameyaw
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Johnson Nyarko Boampong
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Eric Gyamerah Ofori
- Department of Biochemistry, School of Biological Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Joseph Budu Dadzie
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
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Woode E, Ameyaw EO, Abotsi WKM, Boakye-Gyasi E. An isobolographic analysis of the antinociceptive effect of xylopic acid in combination with morphine or diclofenac. J Basic Clin Pharm 2015; 6:103-8. [PMID: 26692735 PMCID: PMC4660480 DOI: 10.4103/0976-0105.168055] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background: A common practice of managing pain globally is the combination of analgesics and this is aimed at facilitating patient compliance, simplifying prescription, and improving efficacy without increasing adverse effects. Fruit extracts of Xylopia aethiopica are used traditionally in the management of pain disorders and xylopic acid (XA) present in the fruit extract have been shown to possess analgesic properties in animals. There is the likelihood of concomitant use of XA and the commonly used analgesics in traditional settings. This study, therefore, evaluated the pharmacologic interaction between XA/morphine and xylopic/diclofenac combinations. Methods: The formalin test and acetic acid writhing test were used to study the antinociceptive activity of XA, morphine, and diclofenac. The isobolographic analysis was used to study the antinociceptive interactions between XA co-administered with morphine or diclofenac. Results: Results obtained revealed that XA (10–100 mg/kg), morphine (1–10 mg/kg), and diclofenac (1–10 mg/kg) produced dose-related antinociception with different potencies in the formalin and acetic acid writhing tests. Isobolographic analysis of XA/morphine and XA/diclofenac combinations revealed potentiation of their antinociceptive effects. The degree of potentiation calculated as interaction index showed synergism for both combinations in all the nociceptive tests. Conclusion: In conclusion, the present study demonstrated synergism for the co-administration of XA with morphine or diclofenac.
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Affiliation(s)
- Eric Woode
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Elvis Ofori Ameyaw
- Department of Biomedical and Forensic Sciences, School of Biological Science, University of Cape Coast, Cape Coast, Ghana
| | - Wonder Kofi Mensah Abotsi
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Eric Boakye-Gyasi
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Amoani B, Ameyaw EO, Asante DB, Armah FA, Prah J, Kwesi Botchey CP, Boampong JN. Effect of pre-existing Schistosoma haematobium infection on Plasmodium berghei multiplications in imprinting control region mice. Asian Pac J Trop Biomed 2015. [DOI: 10.1016/j.apjtb.2015.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Asare KK, Boampong JN, Ameyaw EO, Thomford AK, Afoakwah R, Kwakye-Nuako G, Thomford KP, Quashie NB. Microscopic identification of possible Clonorchis/Opisthorchis infection in two Ghanaian women with undiagnosed abdominal discomfort: two case reports. J Med Case Rep 2014; 8:369. [PMID: 25399721 PMCID: PMC4244120 DOI: 10.1186/1752-1947-8-369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Accepted: 09/15/2014] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION The impact of foodborne trematode infections is gaining recognition worldwide. Clonorchiasis and opisthorchiasis are some of the most neglected tropical foodborne diseases that pose a significant threat to human health. Persistent or chronic infection of Clonorchis/Opisthorchis often leads to hepatobiliary diseases including cholangitis, cholelithiasis, cholecystitis, pancreatitis, hepatic fibrosis, cholangiocarcinoma and liver cancer. Two cases of Clonorchis/Opisthorchis infection in humans in the Central Region of Ghana are reported. CASE PRESENTATION Eggs suspected to be from Clonorchis sinensis or Opisthorchis species were detected in the stools of a 29-year-old Ghanaian woman and an 18-year-old Ghanaian woman in two clinics in the Central Region of Ghana. The diagnosis was based on clinical symptoms as well as detection of the eggs of the trematode in the faeces of the patients using light microscopy after staining with Giemsa or Ziehl-Neelsen stains. CONCLUSIONS To the best of our knowledge these are the first documented cases of Clonorchis sinensis or Opisthorchis species infection in Ghana. The detection of this infection in these patients in Ghana should be of concern to clinicians because the infection can be easily misdiagnosed since the accompanying clinical symptoms are malaria-like. Consideration should therefore be given to Clonorchis sinensis and Opisthorchis species when diagnosing patients presenting with malaria-like symptoms.
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Affiliation(s)
- Kwame Kumi Asare
- Department of Biomedical and Forensic Sciences, University of Cape Coast, Cape Coast, Ghana
| | | | - Elvis Ofori Ameyaw
- Department of Biomedical and Forensic Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Ama Kyeraa Thomford
- Department of Biomedical and Forensic Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Richmond Afoakwah
- Department of Biomedical and Forensic Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Godwin Kwakye-Nuako
- Department of Biomedical and Forensic Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Kwesi Prah Thomford
- Centre for Scientific Research into Plant Medicine, P.O. Box 73, Mampong-Akwapim, Ghana
| | - Neils Ben Quashie
- Centre for Tropical Clinical Pharmacology and Therapeutics, University of Ghana Medical School, P.O. Box, GP4236, Accra, Ghana
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Ameyaw EO, Boampong JN, Kukuia KE, Amoateng P, Obese E, Osei-Sarpong C, Woode E. Effect of Xylopic Acid on Paclitaxel-induced Neuropathic pain in rats. J Med Biomed Sci 2014. [DOI: 10.4314/jmbs.v2i4.2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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