1. Chang, V.S., P.N. Okechukwu and S.S. Teo, 2017. The properties of red seaweed (Kappaphycus alvarezii) and its effect on mammary carcinogenesis. Biomed. Pharm., 87: 296-301.
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2. Yim, H.S., G.A. Akowuah, F.Y. Chye, C.M. Sia, P.N. Okechukwu and C.W. Ho, 2015. Identification of apigenin-7-glucoside and luteolin-7-glucoside in Pleurotus porrigens and Schizophyllum commune mushrooms by liquid chromatography-ion trap tandem mass spectrometry. Curr. Bioactive Compounds, 11: 202-208.
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3. Stepfanie, N.S., K. Sareh, A.A. Gabriel, S.S. Teo and A. Farahnaz, 2015. The HPTLC validated method development for the quantification of Naringin from the partially purified Labisia Pumila dichloromethane. J. Chromatogr. Sep Tech., Vol. 6. 10.4172/2157-7064.1000 271.
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4. Samuagam, L., C.M. Sia, G.A. Akowuah, P.N. Okechukwu and H.S. Yim, 2015. In vivo antioxidant potentials of rambutan, mangosteen and langsat peel extracts and effects on liver enzymes in experimental rats. Food Sci. Biotechnol., 24: 191-198.
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5. Ekeuku, S.O., T.S. Sen, G.A. Akuwoah, G.A. Froemming and P.N. Okechukwu, 2015. Antidiabetic effect of partially purified fraction e from the stem extract of Coscinium fenestratum. Global J. Pharmacol., 9: 316-325.
6. Ekeuku, S.O., P.N. Okechukwu, G.A. Akowoah, T.S. Sen, S.N. Siyumbwa and G.R.A. Froemming, 2015. Plasma glucose lowering activity of Palmatine and its effect on liver, kidney and antioxidant enzymes parameters in STZ induced diabetic rat model. Curr. Bioactive Compounds, 11: 256-263.
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7. Siyumbwa, S., N. Nomishan, Benny and P.N. Okechukwu, 2014. Antioxidant and gastro-protective activity of ethanolic rind extract of manihot esculenta crantz. Int. J. Pharm. Res., 3: 798-808.
8. Samuagam, L., H.E. Khoo, G.A. Akowuah, P.N. Okechukwu and H.S. Yim, 2014. HPLC analysis of antioxidant compounds in some selected tropical fruits peel. Innov. Romanian Food Biotechnol., 14: 61-68.
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9. Okechukwu, P.N., S.O. Ekeuku, S. Loshnie and G.A. Akowuah, 2014. Anti-inflammatory, analgesic, antinociceptive and antipyretic investigation of bioactive constituents from partial purified dichloromethane crude extracts from leaves of Labisia Pumila. Int. J. Pharm. Res., 1: 742-751.
10. Ekeuku, S.O. and P.N. Okechukwu, 2014. Paw edemaand bronchoconstriction induced by mediators: How they were inhibited In vivo by partially purified extract from dichloromethane leaf extract of Labisia pumila. Middle-East J. Sci. Res., 22: 1114-1121.
11. Akowuah, G.A., P.N. Okechukwu and N.C. Chiam, 2014. Evaluation of HPLC and spectrophotometric methods for analysis of bioactive constituent berberine in stem extracts of Coscinium fenestratum. Acta Chromatographica, 26: 243-254.
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12. Samuagam, L., C.M. Sia, G.A. Akowuah, P.N. Okechukwu and H.S. Yim, 2013. The effect of extraction conditions on total phenolic content and free radical scavenging capacity of selected tropical fruits peel. Health Environ. J., 4: 80-102.
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13. Okechukwu, P.N., A.W. Ndyeabura, C.N. Chiang and G.A. Akowuah, 2013. Effect of standardized extract of Cosinium fenestratum stem bark on liver and kidney function parameters in streptozotocin-induced diabetic rats. J. Acute Dis., 2: 201-206.
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14. Ekeuku, S.O. and P.N. Okechukwu, 2013. Inhibition of arachidonic acid-induced ear edema, mast-cell stabilizing and free radical effect of dichloromethane crude extracts from the leaves of Labisia pumila. Asian J. Pharm. Clin. Res., 6: 93-95.
15. Dakar, M. V.Y. Lin, G.A. Akowuah, P.N. Okechukwu and N.C. Chiam, 2013. Anti-proliferative activity of Coscinium fenestratum extract on the Major constituent, bereberine, against nasopharyngeal carcinoma cell lines. Nat. Prod. J., 3: 42-51.
16. Bokanisereme, U.F. Yusuf and P.N. Okechukwu, 2013. Anti-inflammatory, analgesic and anti-pyretic activity of cassava leaf extract. Asian J. Pharm. Clin. Res., 6: 89-92.
17. Okechukwu, P.N., N. Mohamed, I.N. Soelaiman, G.A.R. Froemming and M.Y. Idorus, 2012. Bone proteome study in ovariectomised rats supplemented with palm vitamin E. World Acad. Sci. Eng. Technol., 72: 383-387.
18. Okechukwu, P.N., J.A. Lee and G.A. Akowuah, 2012. In vitro antihistanergic and anticholinergic activities of dichloromethane crude leaf extract of Labisia pumila plant. Int. J. Pharmacol. Toxicol. Sci., 2: 7-14.
19. Okechukwu, P.N., 2012. Hypoglycemic effects of crude extract from the roots of thottea grandiflora rottb. Int. J. Pharmacol. Toxicol. Sci., 2: 1-6.
20. Okechukwu, P.N. and S.O. Ekeuku, 2012. In vivo and In vitro Anti-asthmatic effects of dichloromethane crude extract from the leaves of Labisia pumila. Global J. Pharmacol., 6: 126-130.
21. Okechukwu, P.N. and L. Samuagam, 2012. The study of antinociceptive effects of MEOH and DCM crude extracts from the leaves of Labisia pumila. Global J. Pharmacol., 5: 181-185.
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22. Okechukwu, P.N. and C.M. Ikujuni, 2012. The study of anti-inflammatory anti-pyretic and anti-nociceptive activities of extract from leaves of Labisia pumila. Int. J. Pharmacol. Toxicol. Sci., 2: 12-27.
23. Okechukwu, N.P., 2012. Hypoglycemic and free radical scavenging activity of partially purified fraction e from DCM stem extract of Cosinium fenestratum. Asian J. Pharm. Clin. Res., 5: 30-36.
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24. Selvaraja, M., A.W. Ndyeabura, A.G. Akowuah and P.N. Okechukwu, 2011. Antidiabetic activity of crude stem extracts of Coscinium fenestratum on streptozotocin-induced type-2 diabetic rats. Asian J. Pharm. Clin. Res., 4: 47-51.
25. Samuagam, L., G.A. Akowuah and P.N. Okechukwu, 2011. Partial purification and antinociceptive investigation of extracts of leaves of Labisia pumila. Asian J. Pharmaceut. Clin. Res., 4: 44-46.
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26. Okechukwu, P.N., 2011. The antihyperglycemic activity of partially purified extract from the roots of thottea grandiflora rottb. Int. J. Pharmacol. Toxicol. Sci., 3: 22-31.
27. Okechukwu, P.N. and J. Marunga, 2011. Gasteroprotective effect of dichloromethane crude extract of Labisia pumila. Int. J. Pharmacol. Toxicol. Sci., 2: 1-7.
28. Alzubier, A.A. and P.N. Okechukwu, 2011. Investigation of anti-inflammatory, antipyretic and analgesic effect of Yemeni Sid honey. World Acad. Sci. Eng. Technol., 80: 47-52.
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