KDU-CARE

• BSc (Ruhuna),
• MSc (Colombo),
• PhD (Bergen),
• GC Advance Aquatic Toxicology (VIMS),
• C Intl. Health (Bergen)

Research articles and conference papers

• Dissanayaka, D. D. S., Gunawickrama, S.H.N.P., Dharmapriya, T. N., and Gunawickrama, K.B. S. (2023-2024) Effects of Acetaminophen exposure on behavior and erythrocyte nuclear morphology of juvenile Oreochromis niloticus. Accepted by Drug and Chemical Toxicology (Indexed in Web of Science, SCI-Expanded list)
• Silva A.R.N., Jayasekara J.M.K.B., Nanayakkara P.G.C.L., Gunawickrama S.H.N.P. (2023) Wide-ranging performance of different eGFR equations in stage determination of Chronic Kidney Disease patients from endemic areas for CKD in Sri Lanka. Int J Community Med Public Health 10: 937-942. https://dx.doi.org/10.18203/2394-6040.ijcmph20230604
• Athauda, A.R.O.G., Gunawickrama, S.H.N.P., Gunawickrama, K.B.S. (2023) Effects of exposure to Ibuprofen and Acetaminophen mixtures in Oreochromis niloticus juveniles. Book of Abstracts, of the 20^th Academic Sessions (June 07, 2023) at University of Ruhuna, Sri Lanka
• Rathnayake R.M.S.W., Guruge W.A.H.P., Gunawickrama S.H.N.P., Gunawickrma K.B.S. (2023) A preliminary survey on macrobenthic communities in Nilala river and Madu Ganga estuaries in Sri Lanka. Proceedings of 10^th Ruhuna International Science & Technology Conference; p10, January 18, 2023 at University of Ruhuna, Matara, Sri Lanka
• Piumali, G.D.S.R., Gunawickrama, S.H.N.P., Gunawickrama, K.B.S. (2022) Effects on liver somatic index, erythrocyte nuclear abnormalities and biliary metabolites of PAH in Oreochromis niloticus exposed to water-borne crude oil. Int. J. Biosciences 21, 5: 184-191. http://dx.doi.org/10.12692/ijb/21.5.184-191
• Gunawickrama, S.H.N.P., Silva, A.R.N., Nanayakkara, P.G.C.L., Gunawickrama, K.B.S., Jayasekara, J.M.K.B., Chandrasekharan, N.V. (2022) Metals and Metallothionein expression in relation to progression of Chronic Kidney Disease of Unknown Etiology (CKDu) in Sri Lanka. Diseases, 10, 34. https://doi.org/10.3390/ diseases10020034
• Gunawickrama, SHNP, Hewavitharana, KIG, Nanayakkara, PGCL, Gunawickrama, KBS (2022) Chronic kidney disease of unknown etiology (CKDu) in Sri Lanka: Hematological changes and pro-inflammation suggest likely predictors of advance disease, as renal outcomes show prevalent normoalbuminuria. Diseases, 10, 2. https://doi.org/10.3390/diseases10010002
• Wickramarathna H.P.S.H., Gunawickrama S.H.N.P., Gunawickrama K.B.S. (2022) Effects of sub-lethal exposure of Ibuprofen on laboratory-reared Oreochromis niloticus juveliles: An integrative biomarker study. Proceedings of the 42nd annual sessions of Institute of Biology of Sri Lanka, held on September 30, 2022.
• Madushika K.M.L., Gunawickrama S.H.N.P., Gunawickrama K.B.S. (2022) Preliminary assessment of biomarker responses in Oreochromic niloticus from selected water bodies with reference to the trophic status. Abstracts, 19th Academic Sessions, University of Ruhuna; p99, March 02, 2022 at University of Ruhuna, Matara, Sri Lanka
• Piumali G.D.S.R., Gunawickrama S.H.N.P., Gunawickrama K.B.S. (2021) Short term variation in liver somatic index, erythrocyte nuclear abnormalities and biliary PAH metabolite levels of Oreochromis niloticus upon experimental exposure to water-borne crude oil. Proceedings at the 8th Ruhuna International Science & Technology Conference, Feb 17, 2021, at University of Ruhuna, Matara, Sri Lanka, ISSN: 1391-8796, p45
• Jayasekara K., Gunaratne G., Nisansala T., Kulasooriya P., Gunawickrama N. (2021) Identifying Early Determinants for Chronic Kidney Disease of Uncertain Aetiology (CKDu) Amongst Agricultural Communities in Sri Lanka. Epidemiology International Journal 5(4): 000215, DOI: 10.23880/eij-16000215
• Gunawickrama S.H.N.P., Hewavitharana K.I.G., Silva A.R.N., Nanayakkara P.G.C.L., Gunawickrama K.B.S., Jayasekara J.K.M.B. (2020) Risk factor distribution among subjects with declined estimated-glomerular filtration rate in areas endemic to chronic kidney disease of unknown aetiology in Sri Lanka. J Kidney 6:179. doi-10.35248/2472-1220.20.6.179
• Rifkana, D.M.F., Gunawickrama, S.H.N.P., Gunawickrama K.B.S. (2019) Effects of waterborne Diclofenac on guppy (Poecilia reticulata): behavioural, histopathological, developmental and haematological approach under chronic laboratory exposure. Proceedings of Basic and Applied Science Sessions at 12th International Research Conference, Sir John Kotelawala Defence University, Sri Lanka. https://www.kdu.ac.lk/proceedings/irc2019/bas.php
• Rifkana, D.M.F., Gunawickrama, S.H.N.P., Gunawickrama K.B.S. (2019) Effects of waterborne Diclofenac on guppy (Poecilia reticulata): behavioural, histopathological, developmental and haematological approach under chronic laboratory exposure. Abstracts Book; Basic and Applied Science Sessions at 12th International Research Conference, Sir John Kotelawala Defence University, Sri Lanka. P221
• Hewavitharana K.I.G., Silva A.R.N., Kumara G.W.G.P., Karunarathna R.H., Nanayakkara P.G.C.L., Gunawickrama K.B.S., Jayasekara J.M.K.B., RMKT Rathnayaka, Gunawickrama, S.H.N.P. (2019) Leukocyte, thrombocyte and cytokine profiles of the CKD affected people of Girandurukotte and Mahiyanganaya area of Sri Lanka. Abstracts/ Basic and Applied Sciences: 206-206, 12th International Research Conference, Sir John Kotelawala Defence University, Sri Lanka
• Silva A.R.N., Hewavitharana K.I.G., Kumara G.W.G.P., Karunarathna R.H., Nanayakkara P.G.C.L., Gunawickrama K.B.S., Jayasekara J.M.K.B., RMKT Rathnayaka, Gunawickrama, S.H.N.P. (2019) Comparative assessment of eGFR varients in CKD diagnosis: A study in Padaviya area of Sri Lanka. Abstracts/ Allied Health Sciences: 243-243, 12th International Research Conference, Sir John Kotelawala Defence University, Sri Lanka.
• Jayasekara J.M.K.B., Dissanayake D.M., Shihana F., Sivakanesan R., Silva R.N., Gunawickrama S.H.N.P. (2018) Comparison of serum cystatin C and creatinine levels among individuals with persisting proteinuria in farming communities of rural Sri Lanka. Malays J Med Sci. 25 (6): 67–75
• Silva A.R.N., Gunawickrama K.B.S., Jayasekara J.M.K.B., Kumara G.W.G.P., Karunarathna R.H., Ranasingha A.V., Nanayakkara P.G.C.L., Hewavitharana K.I.G., Gunawickrama, S.H.N.P. (2018) Metallothinein responses in relation to disease progression in CKD affected people of Padaviya, Sri Lanka. Abstracts/ Allied Health Sciences: 37-37, 11th International Research Conference, Sir John Kotelawala Defence University, Sri Lanka.
• Hewavitharana K.I.G., Silva A.R.N., Kumara G.W.G.P., Karunarathna R.H., Ranasingha A.V., Jayasekara J.M.K.B., Nanayakkara P.G.C.L., Gunawickrama, K.B.S., Gunawickrama, S.H.N.P. (2018) Hematological variations along disease progression in CKD affected people of Girandurukotte and Mahiyanganaya, Sri Lanka. Abstracts/ Allied Health Sciences: 50-50, 11th International Research Conference, Sir John Kotelawala Defence University, Sri Lanka
• Dissanayaka, D.D.S., Gunawickrama, S.H.N.P., Gunawickrama, K.B.S. (2018). Effects of acetaminophen exposure on behaviour, erythrocyte nuclear morphology and gill histology of juvenile Oreochromis niloticus: an experimental study. Proceedings of 5th Ruhuna International Science & Technology Conference (RISTCON 2018), University of Ruhuna, Sri Lanka pp 43
• Peiris, H.R.S.C., Gunawickrama, S.H.N.P., Gunawickrama, K.B.S. (2017) Behavioural changes caused by waterborne acetaminophen exposure in the guppy, Poecilia reticulata. Proceedings of the tenth international research conference, General Sir John Kotelawala Defence University, Sri Lanka: Basic and Applied Sciences pp.26
• Silva, A.R.N., Dissanayaka, D.D.S., Karunarathne, W.A.C., Kumara, G.W.G.P., Karunarathna, R.H., Nanayakkara, P.G.C.L., Gunawickrama, K.B.S., Ranasingha, A.V., Jayasekara, J.M.K.B., Gunawickrama, S.H.N.P., (2017) Combinative criteria for identifying stages of CKD patients using both eGFR and urine albumin to creatinine ratio Proceedings of the 10th international research conference, General Sir John Kotelawala Defence University, Sri Lanka: Allied Health Sciences pp.89
• Hewavitharana, K.I.G., Liyanage, P.L.B.C., Silva, A.R.N., Kumara, G.W.G.P., Karunarathna, R.H., Ranasingha, A.V., Jayasekara, J.M.K.B., Nanayakkara, P.G.C.L., Gunawickrama, K.B.S., Gunawickrama, S.H.N.P., (2017) Risk Factor distribution among people affected with the chronic kidney disease (CKD) in Padaviya, Sri Lanka. Proceedings of the tenth international research conference, General Sir John Kotelawala Defence University, Sri Lanka: Allied Health Sciences pp.49
• Hewavitharana, K.I.G., Gunawickrama, S.H.N.P., Gunawickrama, K.B.S (2017) Post-hatch ontogenetic changes and their functional significance in guppy fires (Poecilia reticulata) revealed by histology and osteology. Proceedings of 4th Ruhuna International Science & Technology Conference, University of Ruhuna, Sri Lanka. pp. 30
• Gunawickrama S.H.N.P., Panawala, M., Gunawickrama, K.B.S. (2016) Impaired growth and erythrocyte nuclear lesions of immature Oreochromis niloticus exposed to crude oil: Persistent responses. Sri Lanka J. Aquat. Sci. 21(2): 113-124
• Gunawickrama, S.H.N.P., Hettiarachchi, D.D., Gunawickrama, K.B.S. (2014) Effects of contaminated harbour sediment on the growth and histopathology of Nile tilapia (Oreochromis niloticus): A long-term study. J. Univ. Ruhuna 2:14-23
• Gunawickrama, S.H.N.P., Aarsæther, N., Orbea, A., Cajaraville, M.P., Goksøyr, A. (2008) PCB77 (3,3’,4,4’-tetrachlorobiphenyl) co-exposure prolongs CYP1A induction, and sustains oxidative stress in B(a)P exposed turbot, Scophthalmus maximus, in a long-term study Aquatic Toxicology 89: 65-74
• Silva, A.R.N., Jayasekara, J.M.K.B., Kumarasingha, N., Karunathilaka, R.D.N., Gunawickrama, S.H.N.P. (2016) Variations of serum creatinine levels among CKDu patients: Retrospective study. Proceedings of the 9th International Research Conference, General Sir John Kothalawala Defence University, Sri Lanka. pp. 269
• Hewavitharana, K.I.G., Gunawickrama, S.H.N.P., Gunawickrama, K.B.S. (2016) Short term exposure to WAF of crude oil induces pathological lesions in guppy (Poecilia reticulata) fries: a freshwater study. Proceedings of the 9th International Research Conference, General Sir John Kothalawala Defence University, Sri Lanka. pp. 205
• Kanthi, A., Gunawickrama, S.H.N.P., Gunawickrama, K.B.S. (2015) Temporal trends in erythorcyte nuclear abnormalities and leukocyte counts of hybrid red Tilapia upon prolonged exposure to crude oil. Proceedings of the 2nd Ruhuna International Science and Technology Conference, University of Ruhuna, Sri Lanka pp, 61 Jan 22-23, 2015
• Gunawickrama S.H.N.P., Manel Panawala, Gunawickrama, K.B.S. (2014) Growth effects and erythrocyte nuclear abnormalities in juvenile Oreochromis niloticus experimentally exposed to crude oil. Proceedings of the 1st Ruhuna International Science and Technology Conference, University of Ruhuna, Sri Lanka pp, 75 Jan 22-23, 2014
• Gunawickrama, K.B.S., D.D. Hettiarachchi, Gunawickrama, S.H.N.P. (2013) Gill and liver histopathological alterations in juvenile Oreochromic niloticus exposed to contaminated sediment from a fisheries harbour. Proceedings of 9th Ruhunu Science Symposium of University of Ruhuna, Sri Lanka pp 33 January 9, 2013
• Gunawickrama, S.H.N.P., Goksøyr, A. (2010) Evidence that CYP1A induction persists upon PAH-PCB synergy in teleosts. Program and abstracts of the 3rd international symposium of Sabaragamuwa University of Sri Lanka, Pp 54 August 26-28, 2010.
• Gunawickrama, K.B.S., D.D. Hettiarachchi, Gunawickrama, S.H.N.P. (2010) Effects of long-term exposure to contaminated harbour sludge on growth performance of juvenile Nile Tilapia, Oreochromis niloticus. Program and abstracts of the 3rd international symposium of Sabaragamuwa University of Sri Lanka, Pp 131 August 26-28, 2010
• Sampath, W.D.M., Gunawickrama, S.H.N.P., Senevirathne, W.M.G. (2010) Property improvement of natural rubber (NR) acrylonitrile butadiene rubber (NBR) blends by compatibilizing with cloroprene rubber (CR) Proceedings of the 11th annual research session, Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka. January 12-13, 2010
• Jayamini, H.G.S., Gunawickrama, S.H.N.P., Hemalal, K.D.P. (2010) Determination and evaluation of flavour and freshness of toothpastes with respect to time. Proceedings of the 11th annual research session, Faculty of Applied Sciences, Sabaragamuwa University of Sri Lanka. January 12-13, 2010
• Gunawickrama, K.B.S., Dilrukshana, D.A.M., Gunawickrama, S.H.N.P. (2010) Evidence for geographic heterogeneity and population differentiation in Puntius chola (Cyprinidae) using morphometric analysis. Proceedings of 7th science Symposium, University of Ruhuna December, 2010
• Gunawickrama, S.H.N.P., Aarsaether, N., Goksøyr, A. (2000) BPDE-DNA adduct pattern in Scophthalmus maximus upon long-term repeated exposure to B(a)P and B(a)P+PCB77 mixture. Proceedings of the Third SETAC world congress, Brighton, United Kingdom May, 2000
• Gunawickrama, S.H.N.P., Goksøyr, A. (2000) CYP1A and phase II responses of Scophthalmus maximus upon long-term repeated exposure to B(a)P and B(a)P-PCB77 mixtures. Marine Environmental Research 50 1-5, 68-69
• Gunawickrama, S.H.N.P., Goksøyr, A. (1998) Effects of long-term toxicant exposure on selected molecular biomarkers, liver histopathology, genotoxicity, and reproductive toxicology of turbot, Scophthalmus maximus. Marine Environmental Research. 46 1-5, 124

Books

• Nandana Gunawickrama (2023) Practice your essential Immunology ISBN 978-624-99353-2-7, Author publication printed and distributed by Delphi Graphics, Panadura, Sri Lanka.
• Nandana Gunawickrama (2022) Questionnaire Based Learning in Methods at Biology Laboratory. ISBN 978-624-99353-0-3, Author publication printed and distributed by Delphi Graphics, Panadura, Sri Lanka.
• Nandana Gunawickrama (2022) Pathways of Pollutant and Drug Metabolism ISBN: 978-955-31-2483-8, Sarasavi Publishers, Nugegoda, Sri Lanka
• Nandana Gunawickrama (2011) AhR-Binding pollutants in aquatic environment: Biological impact and methods for biomonitoring and risk assessment ISBN, 978-3-639-32819-6 VDM Verlag Dr. Muller Aktiengesellschaft & Co. KG, Saarbrucken, Germany
• Nandana Gunawickrama (2009) Core Immunology ISBN 978-955-573-808-8, Sarasavi Publishers, Nugegoda, Sri Lanka
• Nandana Gunawickrama (2007) Controlled Laboratory Experiments: design and data analyses, an aquatic Toxicology perspective. ISBN 978-983-2888-60-4, UMT Publisher, Terengganu, Malaysia
• Nandana Gunawickrama (2007) Fish Cytochrome P4501A: a biomarker for aquatic environmental health. ISBN 978-983-2888-59-8, UMT Publisher, Terengganu, Malaysia

Monographs

• Nandana Gunawickrama (2022) Assessing Bloom’s Taxonomy. ISBN 978-624-99353-1-0, Author publication printed and distributed by Delphi Graphics, Panadura, Sri Lanka.

Dissertations

• Gunawickrama, S.H.N.P. (2000) Cytochrome P4501A expression, oxidative stress, and genotoxicity: Prolonged effects of benzo(a)pyrene alone, and in presence of 3,3´,4,4´-tetrachlorobiphenyl in a fish model. ISBN 82-7653-020-6 Doctoral Thesis, University of Bergen
• Gunawickrama, S.H.N.P. (1995) Effects of copper on selected haematological and blood chemistry parameters of adult Oreochromis niloticus (Cichlidae) M.Sc. Thesis, University of Colombo

Feature articles

• Nandana Gunawickrama (2023) How man and animals cope with pollutant exposure. The Sri Lankan Scientist (ISSN: 2420 7306) at scientist.lk. Volume 9, issue 1, Pages 9-10
• Nandana Gunawickrama (2023) What have the life forms evolved for in nature? Nature Science E-Magazine at http://naturesciencemagazine.com; Volume 03, issue 01, Pages 20-21
• Nandana Gunawickrama (2023) New Delhi Air Pollution: Composition and Effects. Desathiya (magazine in Sinhala language). Volume 45, issue 01, Pages 34-35
• Nandana Gunawickrama (2022) Chronic Renal Disease in Dry and Intermediate Zones of Sri Lanka: Some Perspectives. The Sri Lankan Scientist (ISSN: 2420 7306) Volume 8, issue 2, Pages 36-37

Workshops

• Gunawickrama, S.H.N.P. (2022) “Toxicant biotransformation” at the 3rd NOR Lanka Blue international workshop for graduate students and early-career graduates held at University of Ruhuna, Matara from April 04 to April 12, 2022.
• Gunawickrama, S.H.N.P. (2017) “Environmental Risk Assessment” at a workshop with theme, Project Management at the Faculty of Education Leadership Development and Management, National Institute of Education of Sri Lanka, Meepe, Sri Lanka, held on August 15, 2017.
• Gunawickrama, S.H.N.P. (2014) “Effects of the breakwater on marine and coastal environments in Unawatuna Bay area” at awareness workshop for entrepreneurs and executive grade staff of local tourism industry held at Tartaruga Hotel, Unawatuna on October 15, 2014.
• Gunawickrama, S.H.N.P. (2007) “CYP1A, dioxin-like pollutants and the toxic endpoints in fish” at a seminar for academics and graduate students organized by the Institute of Tropical Aquaculture and Fisheries (AKUATROP), University Malaysia Terengganu (UMT), Kuala Terengganu, Malaysia, It was the tenure-end seminar oration as a research fellow held on September 9, 2007 at UMT-library auditorium.
• Gunawickrama, S.H.N.P. (2003) “Effects of genetically modified food (GMF) and genetically modified organisms (GMO) on human health” at Awareness Workshop for Community Leaders of National Biosafety Framework (NBF) Development Project (BFDP) held on December 7, 2003 at Samanmal Hall, Uyanwatte, Matara.

Reports

• Goksøyr, A., Gunawickrama, S.H.N.P., A. Arukwe, (1999). Long-term effects of model compounds in produced water on the reproductive ability and progeny of turbot (Scophthalmuc maximus). End report of project nr. 98H11to the Norwegian Oil and Energy Department

• Aquatic Toxicology with emphasis on organic contaminants and teleost responses, Causal mechanisms pertaining to chronic kidney disease of unknown etiology in Sri Lanka.

• Toxicology of dioxins, polycyclic aromatic hydrocarbons and polycholorinated biphenys in the environment, CYP1A induction and downstream biotransformation of organic xenobiiotics

• Mechanistic relations of chronic kidney disease of unknown etiology of Sri Lanka with emphasis of metal exposure, exogenous risk factors and inflammatory pathways

• Senior Lecturer (grade I) at Combinatorial Advanced Research and Education, Sir John Kotelawala Defence University (November 1, 2017 – to date): Offers undergraduate courses, 1) Immunology, and 2) Instrumental Methods in Life and Biomedical Sciences at the Faculty of Engineering, and 3) Immunology and 4) Environmental Toxicology at the Faculty of Allied Health Sciences
• Senior Lecturer (grade II) on contract at Combinatorial Advanced Research and Education, Sir John Kotelawala Defence University (September 4, 2014 – October 31, 2017)
• Senior Lecturer (grade II) Temp at Dept of Zoology, Univeristy of Sri Jayawardenepura, Sri Lanka (December 17, 2012 – December 16, 2013) Offered undergraduate 1) Cytology and Biology of the Cell, 2) Animal Form and Function and 3) Environmental Toxicology
• Senior Lecturer (grade II) Temp at Dept of Physical Sciences and Technology, Sabaragamuwa University of Sri Lanka, Belihuloya (April 01, 2009 – February 05, 2011) Offered undergraduate, 1) Natural Products Chemistry, 2) Industrial Chemistry and Technology, 3) Special Topics in Chemistry/Immunochemistry, 4) Polymer Technology, 5) Biology for Physical Sciences, at Dept of Physical Sciences and Technology, and 6) Industrial Chemistry and Technology (including practical), 7) Introduction to Hydrology, 8) Management of Coastal and Marine Resources/ Oceanography at Dept of Natural Resources, and Food Toxicology at Department of Food Science and Technology.
• Senior Lecturer (grade II) on contract at Dept of Chemistry, University of Kelaniya, Sri Lanka (Sept 2008- Feb 2009) Offered undergraduate 1) Pharmaceutical Chemistry (including practical) and 2)

• “Mechanistic verification of the suspected metal-linked etiology of the chronic kidney disease (CKDu) in Sri Lanka: a molecular approach” Grant No: MSTR/TRD/AGR/RD/01 awarded (Rs 3.07 million) on October 19, 2015 by the Ministry of Science, Technology and Research of Sri Lanka.
• ‘Immunomodulation associated with CKDu progression, of Sri Lanka’ Grant No RPHS/2016/CKDu 04 awarded (Rs 4.6 million) on December 29, 2016 by the National Science Foundation (NSF) of Sri Lanka