Research Topics
| J A O OjewoleSummaryAffiliation: University of KwaZulu-Natal Country: South Africa Publications
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Detail Information
Publications
Hypoglycaemic effect of Clausena anisata (Willd) Hook methanolic root extract in ratsJohn A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of Durban Westville, Durban 4000, South Africa
J Ethnopharmacol 81:231-7. 2002..anisata root in the management and/or control of adult-onset, Type-2 diabetes mellitus in some communities of South Africa...
Laboratory evaluation of the hypoglycemic effect of Anacardium occidentale Linn (Anacardiaceae) stem-bark extracts in ratsJ A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of Durban Westville, Durban, South Africa
Methods Find Exp Clin Pharmacol 25:199-204. 2003....
Antinociceptive, anti-inflammatory and antidiabetic effects of Bryophyllum pinnatum (Crassulaceae) leaf aqueous extractJohn A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Private Bag X54001, Durban 4000, South Africa
J Ethnopharmacol 99:13-9. 2005..The different flavonoids, polyphenols, triterpenoids and other chemical constituents of the herb are speculated to account for the observed antinociceptive, anti-inflammatory and antidiabetic properties of the plant...
Effects of Hypoxis hemerocallidea (Fisch. & C.A. Mey.) [Hypoxidaceae] corm (African Potato) aqueous extract on renal electrolyte and fluid handling in the ratC T Musabayane
Department of Human Physiology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
Ren Fail 27:763-70. 2005..02 mL x min (-1)) and increased plasma creatinine concentration (55 +/- 3 micromol x L(-1) vs. 68 +/-6 micromol x L(-1)). The results from this study suggest that the H. hemerocallidea corm aqueous extract may impair kidney function...
Anticonvulsant effect of Persea americana Mill (Lauraceae) (Avocado) leaf aqueous extract in miceJohn A O Ojewole
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Private Bag X54001, Durban 4000, South Africa
Phytother Res 20:696-700. 2006....
Sclerocarya birrea (A. Rich) Hochst. ['Marula'] (Anacardiaceae): a review of its phytochemistry, pharmacology and toxicology and its ethnomedicinal usesJohn A O Ojewole
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
Phytother Res 24:633-9. 2010..birrea's chemical constituents, as well as its ethnomedicinal, pharmacological and toxicological properties...
Analgesic, anti-inflammatory and hypoglycaemic effects of Rhus chirindensis (Baker F.) [Anacardiaceae] stem-bark aqueous extract in mice and ratsJohn A O Ojewole
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Private Bag X54001, Durban 4000, South Africa
J Ethnopharmacol 113:338-45. 2007....
Analgesic and antiinflammatory effects of mollic acid glucoside, a 1 alpha-hydroxycycloartenoid saponin extractive from Combretum molle R. Br. ex G. Don (Combretaceae) leafJohn A O Ojewole
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Private Bag X54001, Durban 4000, South Africa
Phytother Res 22:30-5. 2008....
Antinociceptive, antiinflammatory and antidiabetic effects of Leonotis leonurus (L.) R. BR. [Lamiaceae] leaf aqueous extract in mice and ratsJ A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
Methods Find Exp Clin Pharmacol 27:257-64. 2005....
Antinociceptive, anti-inflammatory and antidiabetic properties of Hypoxis hemerocallidea Fisch. & C.A. Mey. (Hypoxidaceae) corm ['African Potato'] aqueous extract in mice and ratsJohn A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
J Ethnopharmacol 103:126-34. 2006....
Antiinflammatory, analgesic and hypoglycemic effects of Mangifera indica Linn. (Anacardiaceae) stem-bark aqueous extractJ A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
Methods Find Exp Clin Pharmacol 27:547-54. 2005....
Antiinflammatory and analgesic effects of Psidium guajava Linn. (Myrtaceae) leaf aqueous extract in rats and miceJ A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
Methods Find Exp Clin Pharmacol 28:441-6. 2006....
Analgesic and anticonvulsant properties of Tetrapleura tetraptera (Taub) (Fabaceae) fruit aqueous extract in miceJohn A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Private Bag X54001, Durban 4000, South Africa
Phytother Res 19:1023-9. 2005....
Hypoglycemic and hypotensive effects of Psidium guajava Linn. (Myrtaceae) leaf aqueous extractJ A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
Methods Find Exp Clin Pharmacol 27:689-95. 2005....
Vasodilatory and hypoglycaemic effects of two pyrano-isoflavone extractives from Eriosema kraussianum N. E. Br. [Fabaceae] rootstock in experimental rat modelsJohn A O Ojewole
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Private Bag X54001, Scottsville, Durban 4000, South Africa
Phytochemistry 67:610-7. 2006..The findings of this laboratory animal study indicate that the two hydro-ethanol extractives of E. kraussianum (K1 and K2) possess hypoglycaemic and secondary, vasorelaxant effects in the experimental paradigms used...
Anti-inflammatory and hypoglycaemic effects of Tetrapleura tetraptera (Taub) [Fabaceae] fruit aqueous extract in ratsJohn A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Private Bag X54001, Durban 4000, South Africa
J Ethnopharmacol 95:177-82. 2004....
Evaluation of the analgesic, anti-inflammatory and anti-diabetic properties of Sclerocarya birrea (A. Rich.) Hochst. stem-bark aqueous extract in mice and ratsJohn A O Ojewole
Department of Pharmacology, University of Durban Westville, Durban 4000, South Africa
Phytother Res 18:601-8. 2004....
Bronchorelaxant property of 'African potato' (Hypoxis hemerocallidea corm) aqueous extract in vitroJohn A O Ojewole
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban 4000, South Africa
J Smooth Muscle Res 45:241-8. 2009....
Antidiarrhoeal activity of Hypoxis hemerocallidea Fisch. & C. A. Mey. (Hypoxidaceae) Corm ('African potato') aqueous extract in rodentsJohn A O Ojewole
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Private Bag X54001, Durban 4000, South Africa
Phytother Res 23:965-71. 2009..This finding supports the use of 'African potato' as a natural supplementary remedy for the treatment, management and/or control of diarrhoea in some rural communities of southern Africa...
Hypoglycaemic effect of mollic acid glucoside, a 1alpha-hydroxycycloartenoid saponin extractive from Combretum molle R. Br. ex G. Don (Combretaceae) leaf, in rodentsJohn A O Ojewole
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban 4000, South Africa
J Nat Med 63:117-23. 2009..These findings lend pharmacological credence to the folkloric, ethnomedical uses of the plant's leaf in the management and/or control of diabetes mellitus in some rural communities of southern Africa...
Antidiarrhoeal activity of Psidium guajava Linn. (Myrtaceae) leaf aqueous extract in rodentsJohn A O Ojewole
Department of Pharmacology, University of KwaZulu Natal, Durban, South Africa
J Smooth Muscle Res 44:195-207. 2008....
Anticonvulsant effect of Rhus chirindensis (Baker F.) (Anacardiaceae) stem-bark aqueous extract in miceJohn A O Ojewole
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Private Bag X54001, Durban 4000, South Africa
J Ethnopharmacol 117:130-5. 2008..In conclusion, the findings of this study lend pharmacological credence to the suggested folkloric, ethnomedical uses of Rhus chirindensis in the management of childhood convulsions and epilepsy in some rural communities of South Africa...
Anticonvulsant property of Sutherlandia frutescens R. BR. (variety Incana E. MEY.) [Fabaceae] shoot aqueous extractJohn A O Ojewole
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Private Bag X54001, Durban 4000, South Africa
Brain Res Bull 75:126-32. 2008....
Analgesic, antiinflammatory and hypoglycaemic effects of ethanol extract of Zingiber officinale (Roscoe) rhizomes (Zingiberaceae) in mice and ratsJohn A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Private Bag X54001, Durban, South Africa
Phytother Res 20:764-72. 2006....
Analgesic, anti-inflammatory and hypoglycaemic effects of Securidaca longepedunculata (Fresen.) [Polygalaceae] root-bark aqueous extractJ A O Ojewole
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Private Bag X54001, Durban 4000, South Africa
Inflammopharmacology 16:174-81. 2008..longepedunculata root-bark in the treatment, management and/or control of painful, arthritic, inflammatory conditions, as well as in the management and/or control of type 2 diabetes mellitus in some rural communities of South Africa...
Anticonvulsant activity of Hypoxis hemerocallidea Fisch. & C. A. Mey. (Hypoxidaceae) corm ('African potato') aqueous extract in miceJohn A O Ojewole
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Private Bag X54001, Durban 4000, South Africa
Phytother Res 22:91-6. 2008....
Analgesic, antiinflammatory and hypoglycemic effects of Sutherlandia frutescens R. BR. (variety Incana E. MEY.) [Fabaceae] shoot aqueous extractJ A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
Methods Find Exp Clin Pharmacol 26:409-16. 2004....
Effects of Persea americana Mill (Lauraceae) ["Avocado"] ethanolic leaf extract on blood glucose and kidney function in streptozotocin-induced diabetic rats and on kidney cell lines of the proximal (LLCPK1) and distal tubules (MDBK)M Gondwe
Discipline of Human Physiology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
Methods Find Exp Clin Pharmacol 30:25-35. 2008..These results indicate not only the basis of the ethnomedicinal use of P. americana leaf extract in diabetes management, but also of need for further studies to identify and evaluate the safety of PAE's bioactive compounds...
Hypoglycaemic and hypotensive effects of Globimetula cupulata (DC) Van Tieghem (Loranthaceae) aqueous leaf extract in ratsJ A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
Cardiovasc J S Afr 18:9-15. 2007..This therefore lends pharmacological support to the folkloric, ethnomedical uses of the plant in the management and/ or control of diabetes mellitus and hypertension among the Yoruba-speaking people of western Nigeria...
Analgesic, antiinflammatory and antidiabetic properties of Harpagophytum procumbens DC (Pedaliaceae) secondary root aqueous extractIsmail M Mahomed
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa
Phytother Res 18:982-9. 2004....
Hypoglycemic effect of Hypoxis hemerocallidea corm (African potato) aqueous extract in ratsI M Mahomed
Department of Pharmacology, Faculty of Health Sciences, University of Durban Westville, Durban 4000, South Africa
Methods Find Exp Clin Pharmacol 25:617-23. 2003....
Effects of Ficus thonningii (Blume) [Morarceae] stem-bark ethanolic extract on blood glucose, cardiovascular and kidney functions of rats, and on kidney cell lines of the proximal (LLC-PK1) and distal tubules (MDBK)C T Musabayane
Discipline of Human Physiology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
Ren Fail 29:389-97. 2007..Our experimental findings suggest that FTE possesses reno- and cardio-protective effects in diabetes mellitus...
Cardiovascular effects of Persea americana Mill (Lauraceae) (avocado) aqueous leaf extract in experimental animalsJ A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
Cardiovasc J Afr 18:69-76. 2007..However, the findings of this study tend to suggest that P americana leaf could be used as a natural supplementary remedy in essential hypertension and certain cases of cardiac dysfunctions in some rural Africa communities...
Hypoglycemic effect of Sclerocarya birrea [(A. Rich.) Hochst.] [Anacardiaceae] stem-bark aqueous extract in ratsJ A O Ojewole
Department of Pharmacology, University of Durban Westville, Durban, South Africa
Phytomedicine 10:675-81. 2003....
Some in vitro and in vivo cardiovascular effects of Hypoxis hemerocallidea Fisch & CA Mey (Hypoxidaceae) corm (African potato) aqueous extract in experimental animal modelsJ A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
Cardiovasc J S Afr 17:166-71. 2006....
Antiinflammatory properties of Hypoxis hemerocallidea corm (African potato) extracts in ratsJ A O Ojewole
Department of Pharmacology, University of Durban Westville, Durban, South Africa
Methods Find Exp Clin Pharmacol 24:685-7. 2002..However, the two extracts of African potato examined in this study were found to be less potent than acetyl salicylic acid (ASA) as an antiinflammatory agent...
Evaluation of the anti-inflammatory properties of Sclerocarya birrea (A. Rich.) Hochst. (family: Anacardiaceae) stem-bark extracts in ratsJohn A O Ojewole
Department of Pharmacology, University of Durban Westville, Private Bag X54001, Durban, 4000, South Africa
J Ethnopharmacol 85:217-20. 2003....
Hypoglycaemic and hypotensive effects of Harpephyllum caffrum Bernh ex CF Krauss (Anacardiaceae) stem-bark aqueous extract in ratsJ A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
Cardiovasc J S Afr 17:67-72. 2006....
Potentiation of the antiinflammatory effect of Anacardium occidentale (Linn.) stem-bark aqueous extract by grapefruit juiceJ A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of Durban Westville, Durban, South Africa
Methods Find Exp Clin Pharmacol 26:183-8. 2004....
Grapefruit juice improves glycemic control but exacerbates metformin-induced lactic acidosis in non-diabetic ratsP M O Owira
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
Methods Find Exp Clin Pharmacol 31:563-70. 2009..0122; r(2) = 0.9080) and GFJ-treated test rats (P = 0.0005; r(2) = 0.9893). Although GFJ may be beneficial to diabetic patients, it may exacerbate lactic acidosis in diabetic patients taking metformin concurrently...
Studies on the antiplasmodial properties of some South African medicinal plants used as antimalarial remedies in Zulu folk medicineN Nundkumar
Department of Biochemistry, Faculty of Science, University of Durban-Westville, Durban, South Africa
Methods Find Exp Clin Pharmacol 24:397-401. 2002..Phytochemical analysis of these two active plant extracts revealed the presence of anthraquinones, flavonoids, seccoirridoids and terpenoids...
Effects of oral administration of some herbal extracts on food consumption and blood glucose levels in normal and streptozotocin-treated diabetic ratsC T Musabayane
Department of Human Physiology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
Methods Find Exp Clin Pharmacol 28:223-8. 2006..These findings merit long-term investigation...
Cardiovascular effects of Ekebergia capensis Sparrm (Meliaceae) ethanolic leaf extract in experimental animal paradigmsDavid R Kamadyaapa
Department of Human Physiology, School of Medical Sciences, University of KwaZulu Natal, Durban, South Africa
Cardiovasc J Afr 20:162-7, 169. 2009..These observations suggest that the hypotensive effect of EKE was in part mediated via modulation of total peripheral resistance of the vascular smooth muscles...
Hypoglycemic effect of methanolic extract of Musa paradisiaca (Musaceae) green fruits in normal and diabetic miceJ A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of Durban Westville, Durban, South Africa
Methods Find Exp Clin Pharmacol 25:453-6. 2003....
Vasorelaxant and hypotensive effects of Sclerocarya birrea (A Rich) Hochst (Anacardiaceae) stem bark aqueous extract in ratsJohn A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
Cardiovasc J S Afr 17:117-23. 2006....
Hypoglycaemic and hypotensive effects of Momordica charantia Linn (Cucurbitaceae) whole-plant aqueous extract in ratsJohn A O Ojewole
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
Cardiovasc J S Afr 17:227-32. 2006....
Anticonvulsant activity of Harpagophytum procumbens DC [Pedaliaceae] secondary root aqueous extract in miceIsmail M Mahomed
Department of Pharmacology, Faculty of Health Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa
Brain Res Bull 69:57-62. 2006....
Effects of Syzygium cordatum (Hochst.) [Myrtaceae] leaf extract on plasma glucose and hepatic glycogen in streptozotocin-induced diabetic ratsC T Musabayane
Department of Human Physiology and Physiological Chemistry, School of Medical Sciences, University of KwaZulu Natal, Westville Campus, Private Bag X54001, Durban 4000, South Africa
J Ethnopharmacol 97:485-90. 2005..The possible mechanism(s) involved in the short-term hypoglycaemic effect of the extract could not be established by the current study...
Uterolytic effect of Hypoxis hemerocallidea Fisch. & C.A. Mey. (Hypoxidaceae) corm [;African Potato'] aqueous extractAgatha Nyinawumuntu
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, South Africa
J Smooth Muscle Res 44:167-76. 2008....
Diabetes mellitus and responses of the urinary bladder to acetylcholine: an in vitro studyAbdon M Nsabimana
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
J Smooth Muscle Res 44:143-50. 2008..The magnitude and/or intensity of the diabetic bladder enhanced contractile responses to ACh continued to increase as the diabetic state of the animals progressed...
Biphasic effect of Psidium guajava Linn. (Myrtaceae) leaf aqueous extract on rat isolated vascular smooth musclesWitness D H Chiwororo
Department of Pharmacology, University of KwaZulu Natal, Durban, South Africa
J Smooth Muscle Res 44:217-29. 2008..Taken together, the findings of this study indicate that PGE possesses a biphasic effect on rat isolated vascular smooth muscles...
'African potato' (Hypoxis hemerocallidea corm): a plant-medicine for modern and 21st century diseases of mankind? - a reviewPeter M O Owira
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Private Bag X54001, Durban 4000, South Africa
Phytother Res 23:147-52. 2009..However, more laboratory and clinical studies are required to clarify these observations, and to isolate, purify and characterize the active chemical constituents responsible for the herb's pharmaco-therapeutic effects...
Cardiovascular effects of Helichrysum ceres S Moore [Asteraceae] ethanolic leaf extract in some experimental animal paradigmsCephas T Musabayane
Department of Human Physiology, School of Medical Sciences, University of KwaZulu Natal, Durban
Cardiovasc J Afr 19:246-53. 2008..The observed cardiovascular effects of HCE partly support the basis for its use in the management of high blood pressure in folkloric medicine...
Spasmolytic effect of Psidium guajava Linn. (Myrtaceae) leaf aqueous extract on rat isolated uterine hornsWitness D H Chiwororo
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban, South Africa
J Smooth Muscle Res 45:31-8. 2009..The spasmolytic effect of PGE observed in the present study lends pharmacological support to the traditional use of ;guava' leaves in the management, control and/or treatment of primary dysmenorrhoea in some rural African communities...
Evaluation of the antidysrhythmic effects of delta- and kappa-opioid receptor agonists and antagonists on calcium chloride-, adrenaline- and ischemia/reperfusion-induced arrhythmias in ratsA Valtchanova-Matchouganska
Department of Pharmacology, Faculty of Health Sciences, University of Durban-Westville, Durban, South Africa
Methods Find Exp Clin Pharmacol 26:31-8. 2004....
Uterotonic effect of Harpagophytum procumbens DC (Pedaliaceae) secondary root aqueous extract on rat isolated uterine hornsIsmail M Mahomed
Department of Pharmacology, School of Pharmacy and Pharmacology, Faculty of Health Sciences, University of KwaZulu Natal, Durban 4000, South Africa
J Smooth Muscle Res 45:231-9. 2009..These findings lend pharmacological credence to the suggested folkloric obstetric uses of the plant's secondary root for induction and/or acceleration of labour, as well as for expelling retained placentas in pregnant women...
Therapeutic claims of African potato: Fact or fiction?John A O Ojewole
Cardiovasc J S Afr 17:225-6. 2006
