Dr. G A S Pramakumara
Dept. of Basic Science and Social Sciences for Nursing - Faculty of Nursing
Publications
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Topical Anti-Inflammatory Activity of Essential Oils of Alpinia calcarata Rosc., Its Main Constituents, and Possible Mechanism of Action.
Publications
Madhuvanthi Chandrakanthan, Shiroma M. Handunnetti, Galbada Sirimal Arachchige Premakumara and Selvaluxmy Kathirgamanathar (2020). Topical Anti-Inflammatory Activity of Essential Oils of Alpinia calcarata Rosc., Its Main Constituents, and Possible Mechanism of Action. Evidence-Based Complementary and Alternative Medicine Volume 2020, Article ID 2035671, 19 pages
Publication year: 2020
Topical Anti-Inflammatory Activity of Essential Oils of Alpinia calcarata Rosc., Its Main Constituents, and Possible Mechanism of Action
Refereed Journal articles
Madhuvanthi Chandrakanthan, Shiroma M. Handunnetti, Galbada Sirimal Arachchige Premakumara and Selvaluxmy Kathirgamanathar (2020). Topical Anti-Inflammatory Activity of Essential Oils of Alpinia calcarata Rosc., Its Main Constituents, and Possible Mechanism of Action. Evidence-Based Complementary and Alternative Medicine Volume 2020, Article ID 2035671, 19 pages
Publication year: 2020
Immunomodulatory Activity of a Traditional Sri Lankan Concoction of Coriandrum sativum L. and Coscinium fenestratum G.
Refereed Journal articles
Shashika Dinethri Kothalawala, Daniya Edward, Jayamini C. Harasgama, Loshini Ranaweera, Ovitigala Vithanage Don Sisira Jagathpriya Weerasena, Roshan Niloofa, Wanigasekera Daya Ratnasooriya, Galbada Arachchige Sirimal Premakumara and Shiroma M. Handunnetti (2020). Immunomodulatory Activity of a Traditional Sri Lankan Concoction of Coriandrum sativum L. and Coscinium fenestratum G. Evidence-Based Complementary and Alternative Medicine Volume 2020, Article ID 9715060, 10 pages.
Publication year: 2020
Immunomodulatory Activity of a Traditional Sri Lankan Concoction of Coriandrum sativum L. and Coscinium fenestratum G
Publications
Kothalawala SD, Edward D, Harasgama JC, Ranaweera L, Weerasena OVDSJ, Niloofa R, Ratnasooriya WD, Premakumara GAS, Handunnetti SM. Immunomodulatory Activity of a Traditional Sri Lankan Concoction of Coriandrum sativum L. and Coscinium fenestratum G. Evid Based Complement Alternat Med. 2020 Sep 14;2020:9715060. doi: 10.1155/2020/9715060. PMID: 33005205; PMCID: PMC7509570.
Publication year: 2020
Evolitrine as potential inhibitor of renin. 1st International Conference on Fronters in Chemical Technology, Institute of Chemistry, Ceylon
Conference paper presentations / workshop attended
Abdulla S M, Premakumar G A S, Weerasinghe M S S, Ranasinghe P, and Udawatte C (2020). Evolitrine as potential inhibitor of renin. 1st International Conference on Fronters in Chemical Technology, Institute of Chemistry, Ceylon, July 2020. Pp 86.
Publication year: 2020
Evolitrine as potential inhibitor of renin.
Abstracts/Communications
Abdulla S M, Premakumar G A S, Weerasinghe M S S, Ranasinghe P, and Udawatte C (2020). Evolitrine as potential inhibitor of renin. 1st International Conference on Fronters in Chemical Technology, Institute of Chemistry, Ceylon, July 2020. Pp 86.
Publication year: 2020
Effects of different homogenization time durations for enumeration of microorganisms from black tea.
Conference paper presentations / workshop attended
Karunaratne, S.H.S., Abeygunawardena, G.A.S.I., Jayaratne, D.L., Premakumara G.A.S. (2020). Effects of different homogenization time durations for enumeration of microorganisms from black tea: A case study in low country tea in Sri Lanka. Proceedings of the 40th Annual sessions of the Institute of Biology, Sri Lanka. Pp. 76.
Publication year: 2020
Effects of different homogenization time durations for enumeration of microorganisms from black tea: A case study in low country tea in Sri Lanka.
Abstracts/Communications
Karunaratne, S.H.S., Abeygunawardena, G.A.S.I., Jayaratne, D.L., Premakumara G.A.S. (2020). Effects of different homogenization time durations for enumeration of microorganisms from black tea: A case study in low country tea in Sri Lanka. Proceedings of the 40th Annual sessions of the Institute of Biology, Sri Lanka. Pp. 76.
Publication year: 2020
Binding interactions of aldose reductase with bioactive compounds extracted from sri lankan plants.
Conference paper presentations / workshop attended
Abdulla S M, Premakumar G A S, Weerasinghe M S S, Ranasinghe P, and Udawatte C (2020). Binding interactions of aldose reductase with bioactive compounds extracted from sri lankan plants. International Conference on Multidisciplinary Approaches – 2020, University of Sri Jayawardane Pura, December 2020. Pp 11.
Publication year: 2020
Antioxidant properties of selected pigmented and white long grain rice varieties of Sri Lanka at market available polishing rates.
Publications
W. K. S. M. Abeysekera, W. P. K. M. Abeysekera, T. L. Suraweera, M. D. W. Samaranayake, S. L. Liyanage, S. P. G. Arachchige (Premakumara G.A.S.), W. D. Ratnasooriya and D. S. de Z. Abeysiriwardena.(2020). Antioxidant properties of selected pigmented and white long grain rice varieties of Sri Lanka at market available polishing rates. The Journal of the Society for Tropical Plant Research. 7(2): 415–423.
Publication year: 2020
Antioxidant properties of selected pigmented and white long grain rice varieties of Sri Lanka at market available polishing rates.
Refereed Journal articles
W. K. S. M. Abeysekera, W. P. K. M. Abeysekera, T. L. Suraweera, M. D. W. Samaranayake, S. L. Liyanage, S. P. G. Arachchige (Premakumara G.A.S.), W. D. Ratnasooriya and D. S. de Z. Abeysiriwardena.(2020). Antioxidant properties of selected pigmented and white long grain rice varieties of Sri Lanka at market available polishing rates. The Journal of the Society for Tropical Plant Research. 7(2): 415–423.
Publication year: 2020
Antibacterial and antibiofilm activity of Alpinia malaccensis and Terminalia catappa extract combinations on Staphylococcus aureus and Listeria monocytogene strains
Publications
Somarathna T., Fernando, W. M. A. D. B., Ranaweera, K. K. D. S., Premakumara, G. A. S. and Weerakkody N. S. (2020). Antibacterial and antibiofilm activity of Alpinia malaccensis and Terminalia catappa extract combinations on Staphylococcus aureus and Listeria monocytogene strains. Int. J. Appl. Microbiol. Biotechnol. Res. 8(2020), 73-80.
Publication year: 2020
Antibacterial and antibiofilm activity of Alpinia malaccensis and Terminalia catappa extract combinations on Staphylococcus aureus and Listeria monocytogene strains
Refereed Journal articles
Somarathna T., Fernando, W. M. A. D. B., Ranaweera, K. K. D. S., Premakumara, G. A. S. and Weerakkody N. S. (2020). Antibacterial and antibiofilm activity of Alpinia malaccensis and Terminalia catappa extract combinations on Staphylococcus aureus and Listeria monocytogene strains. Int. J. Appl. Microbiol. Biotechnol. Res. 8(2020), 73-80.
Publication year: 2020
Anti-acetylcholinesterase activity of selected commercially important Ceylon black tea (Camellia sinensis L.) grades belonging to different elevations.
Conference paper presentations / workshop attended
W. K. S. M. Abeysekera, W. D. Ratnasooriya, I. G. N. H. Senevirathne, W. P. K. M. Abeysekera, G. A. S. Premakumara (2020). Anti-acetylcholinesterase activity of selected commercially important Ceylon black tea (Camellia sinensis L.) grades belonging to different elevations. Annual Research Symposium, University of Colombo
Publication year: 2020
Anti-acetylcholinesterase activity of selected commercially important Ceylon black tea (Camellia sinensis L.) grades belonging to different elevations
Abstracts/Communications
Abeysekera, W. K. S. M., Ratnasooriya, W. D., Senevirathne, I. G. N. H., Abeysekera, W. P. K. M., Premakumara G. A. S. (2020). Anti-acetylcholinesterase activity of selected commercially important Ceylon black tea (Camellia sinensis L.) grades belonging to different elevations. Annual Research Symposium, University of Colombo, pp.
Publication year: 2020
α-amylase and α-glucosidase enzyme inhibitory activities of selected millet types and sorghum varieties of Sri Lanka
Abstracts/Communications
Senevirathne, I.G. N. H., Abeysekera, W. P. K. M., Abeysekera, W. K. S. M., Jayanath, N. Y., Premakumara, G. A. S., & Wijewardana, D. C. M. S. I. (2019). α-amylase and α-glucosidase enzyme inhibitory activities of selected millet types and sorghum varieties of Sri Lanka, Proceedings of Symposium on Agro biodiversity for Climate Change Adaptation, Plant Genetic Resource Centre, Gannoruwa, Sri Lanka. pp. 49.
Publication year: 2019
Skin whitening and anti-aging potential of Ceylon cinnamon (Cinnamomum zeylanicum Blume)
Abstracts/Communications
Abeysekera, W. P. K. M., Premakumara, G. A. S., Ratnasooriya W. D.(2019).Skin whitening and anti-aging potential of Ceylon cinnamon (Cinnamomum zeylanicum Blume). University of Colombo Annual Research Symposium 2019, 194.
Publication year: 2019
Proximate Composition of Range of Millet Types and Sorghum Varieties of Sri Lanka
Abstracts/Communications
Senevirathne, I. G. N. H., Jayathilaka, S. I., Abeysekera, W. K. S. M., Abeysekera, W. P. K. M., Jayanath, N. Y., Premakumara, G. A. S. & Wijewardana, D. C. M. S. I. (2019). Proximate Composition of Range of Millet Types and Sorghum Varieties of Sri Lanka, Proceedings of the 39th Annual sessions of the Institute of Biology, Sri Lanka. Pp. 43.
Publication year: 2019
Promising inhibitors of Renin for management of dyslipidemia.
Abstracts/Communications
Abdulla SM, Premakumara GAS, Udawatte C & Ranasinghe P. (2019). Promising inhibitors of Renin for management of dyslipidemia. Proceedings of Industrial Technology Institute Biennial Research Symposium 2017, 22.
Publication year: 2019
Preliminary study on omega-3 and omega-6 fatty acids and omega 6/3 ratio in selected ready to eat snacks and diets in Colombo district of Sri Lankan market.
Abstracts/Communications
Dassanayake MRP, Somasiri HPPS, Premakumara GAS and Mahanama KRR(2019). Preliminary study on omega-3 and omega-6 fatty acids and omega 6/3 ratio in selected ready to eat snacks and diets in Colombo district of Sri Lankan market. Proceedings of Industrial Technology Institute Biennial Research Symposium 2017, 10.
Publication year: 2019
). Preliminary study of fat composition in selected ready to eat foods in the Sri Lankan market
Abstracts/Communications
Dassanayake MRP, Somasiri HPPS, Premakumara GAS and Mahanama KRR(2019). Preliminary study of fat composition in selected ready to eat foods in the Sri Lankan market. University of Colombo Annual Research Symposium 2019, 212.
Publication year: 2019
Phenolic content and pancreatic lipase and cholesterol esterase inhibitory activities of selected millet types and sorghum varieties of Sri Lanka
Abstracts/Communications
Jayathilaka, S. I., Abeysekera, W. P. K. M., Abeysekera, W. K. S. M., Jayanath, N. Y., Premakumara, G. A. S., & Wijewardana, D. C. M. S. I. (2019). Phenolic content and pancreatic lipase and cholesterol esterase inhibitory activities of selected millet types and sorghum varieties of Sri Lanka, Proceedings of Symposium on Agro biodiversity for Climate Change Adaptation, Plant Genetic Resource Centre, Gannoruwa, Sri Lanka. pp. 50.
Publication year: 2019
Novel Anti-diabetic Related Health Food Properties of Selected Millet Types and Sorghum Varieties of Sri Lanka: An In vitro Study
Abstracts/Communications
Senevirathne, I. G. N. H., Jayanath, N. Y., Abeysekera, W. P. K. M. & Abeysekera, W. K. S. M. (2019). Novel Anti-diabetic Related Health Food Properties of Selected Millet Types and Sorghum Varieties of Sri Lanka: An In vitro Study, Proceedings of the 5th Faculty of Agriculture Undergraduate Research Symposium (FAuRS-2018), Faculty of Agriculture, University of Peradeniya, Sri Lanka, pp. 159.
Publication year: 2019
Microbiological assessment of air & water quality in Sri Lankan tea factories
Abstracts/Communications
Karunaratne, S.H.S., Abeygunawardena G.A.S.I, Jayaratne, D.L. and Premakumara, G.A.S.(2019). Microbiological assessment of air & water quality in Sri Lankan tea factories. Proceedings of Industrial Technology Institute Biennial Research Symposium 2017, 40.
Publication year: 2019
In vitro anti-diabetic potential of bark of Ceylon cinnamon (Cinnamomum zeylanicum Blume) using yeast cells glucose uptake assay
Abstracts/Communications
Binuwangi, A. K. D. M., Abeysekera, W. P. K. M., Abeysekera, W. K. S. M., Premakumara, G. A. S. & Ratnasooriya, W. D. (2019). In vitro anti-diabetic potential of bark of Ceylon cinnamon (Cinnamomum zeylanicum Blume) using yeast cells glucose uptake assay, Proceedings of the 39th Annual sessions of the Institute of Biology, Sri Lanka. Pp. 59.
Publication year: 2019
Garcenia mangostana: A potent inhibitor of renin for management of dyslipidemia.
Abstracts/Communications
Abdulla SM, Premakumara GAS, Udawatte C & Ranasinghe P. (2019). Garcenia mangostana: A potent inhibitor of renin for management of dyslipidemia. 12th International Research Conference of General Sir John Kotelawala Defense University. 188.
Publication year: 2019
Diagnosis of Vespa affinis venom allergy: use of immunochemical methods and a passive basophil activation test
Publications
Gunasekara P, Handunnetti SM, Premawansa S, Kaluarachchi P, Karunatilake C, Ratnayake IP, Dias RKS, Premakumara GAS, Dasanayake WMDK, Seneviratne SL, de Silva R. Diagnosis of Vespa affinis venom allergy: use of immunochemical methods and a passive basophil activation test. Allergy Asthma Clin Immunol. 2019 Dec 4;15:80. doi: 10.1186/s13223-019-0394-6. PMID: 31827544; PMCID: PMC6894289.
Publication year: 2019
Antioxidants and antioxidant activity of root and stem bark of Moringa oleifera Lam. (Murunga),
Abstracts/Communications
Weerakkody, R., Abeysekera, W. P. K. M., Abeysekera, W. K. S. M., Ranasinghe, P., Premakumara, G. A. S. & Ratnasooriya, W. D. (2019). Antioxidants and antioxidant activity of root and stem bark of Moringa oleifera Lam. (Murunga), Proceedings of the 39th Annual sessions of the Institute of Biology, Sri Lanka. Pp. 60.
Publication year: 2019
Antioxidant Properties of Selected Pigmented and White Long Grain Rice Varieties of Sri Lanka at Market Available Polishing Rates.
Abstracts/Communications
Abeysekera, W. K. S. M., Abeysekera, W. P. K. M., Lakshan, S. A. T., Samaranayake, M. D. W., Liyanage, S. L., Premakumara, G. A. S., Ratnasooriya, W. D. & Sumith de Z Abeysiriwardena, D. (2019). Antioxidant Properties of Selected Pigmented and White Long Grain Rice Varieties of Sri Lanka at Market Available Polishing Rates. Proceedings of Symposium on Agro biodiversity for Climate Change Adaptation, Plant Genetic Resource Centre, Gannoruwa, Sri Lanka. pp. 44.
Publication year: 2019