• Non-communicable diseases, body composition assessment methods, nutrition

Full Papers

1. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera, P. P. R. (2022).
   Comparison of anthropometric, BIA measures and serum leptin with genotypes of Q223R leptin receptor single nucleotide polymorphism and association with obesity and serum leptin.
   Human Gene, 34, 201106.
2. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera, P. P. R. (2017).
   Obesity, body fat distribution, insulin resistance and link with type 2 diabetes mellitus.
   International Journal of Scientific and Research Publications.

Conferences – Full Papers

1. Herath, C.J., Nuwansala, H.U.C., Rathnayake, R.G.L., Madushani, G. & Amarasinghe, H.P.K. (2021).
   The Validity of the Quality Assessment Tools Used at the Open University of Sri Lanka.
   Full Papers of the Conference, p.195.

Conferences – Abstracts

2024

1. Ariyawansha PM, Madusanka IHG, Rathnayake RGL, Pathirana VPATV (2024).
   Effect of Photo Treatment (Blue Light) on Creatinine Assay by Jaffe Reaction: Creatinine Stability under Photo Treatment.
   College of Chemical Pathologists of Sri Lanka: Annual Academic Sessions 2024 Proceedings, pg. 99.

2023

1. M.R.F. Litha, M.R.F. Rishafa, W.M.A.M. Weerasekara, A.F. Rushdha, R.M. de Silva, R.G.L. Rathnayake, M.D.T.L. Gunathilaka & P. Ranasinghe (2023).
   Determination of glycaemic index and market potential of Coconut treacle as an alternative sweetener among a Selected group of undergraduates in Sri Lanka.
   Proceedings of the Postgraduate Institute of Science Research Congress, Sri Lanka: 3rd-4th November 2023, pg. 71.

2022

1. Sobithan, T., Janagi, G., Francis, V.R., Nissanka, N.M.C., Rathnayake, R.G.L. & Dilhari, K.A.A. (2022).
   The impact of diabetes mellitus on the type of the etiologic agents in adults with urinary tract infection.
2. Wickramarathne, D.K.N., Herath, H.M.C.K., Dassanayake, M., Wimalagunawardana, P., Nissanka, N.M.C., Rathnayake, R.G.L. & Dilhari, K.A.A. (2022).
   The spectrum of uropathogens of urinary tract infection in children with different age groups.

2021

1. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera, P. P. R. (2021).
   Association of serum leptin with BMI, body fat percentage and Q223R leptin receptor gene polymorphism in an adult female population.
   3rd Conference of the College of Biochemists of Sri Lanka (CBSL) 2021, Sri Lanka.

2020

1. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera, P. P. R. (2020a).
   Determination of frequency of Leptin Q223R Receptor Polymorphism and Differences of Obesity, Serum Leptin and Insulin Resistance with Each Genotype Among a Group of Young Adult Female Population – a Preliminary Study.
   KDU International Research Conference 2020, Sri Lanka.
2. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera, P. P. R. (2020b).
   Determination of frequency of Leptin Q223R Receptor Polymorphism and Differences of Obesity, Serum Leptin and Insulin Resistance with Each Genotype Among a Group of Young Adult Female Population – a Preliminary Study.
   KDU 13th International Research Conference 2020, Sri Lanka.
3. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera, P. P. R. (2020c).
   Gender differences of vitamin D levels and its association with selected obesity markers, insulin resistance in young adults in Sri Lanka.
   9th YSF Symposium 2020, 219-223.

2019

1. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera (2019).
   Assessment of Vitamin D3 Levels and Markers of Obesity Among a Female University Student Population in Sri Lanka.
   Annals of Nutrition & Metabolism, 75, 199.
2. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera (2019a).
   Association of somatotyping parameters with fasting blood glucose, insulin resistance and lipid profile parameters of female diabetic patients.
   Sri Lanka Journal of Diabetes Endocrinology and Metabolism, 9, 15.
3. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera (2019b).
   Comparison of Somatotypes, Body Mass Index, Fasting Blood Glucose, Insulin Resistance and Lipid Profile parameters between diabetic female and diabetic male subjects and evaluating the importance of Somatotyping in metabolic risk assessment.
   Peradeniya University International Research Sessions, 121.
4. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera (2019c).
   A preliminary Study on Association Between Leptin, Insulin Resistance and Body Composition Among a Group of Female University Students in Sri Lanka.
   6th International Conference on Multidisciplinary Approaches, 35.

2018

1. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera (2018).
   Gender differences of bio-impedance analysis, somatotyping and selected anthropometric markers of adiposity and the association with insulin resistance in healthy male and female population in Sri Lanka.
   7th YSF Symposium 2018.

2017

1. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera (2017).
   Effect of physical activity of body composition in women with or without diabetes.
   6th YSF Symposium 2017.
2. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera (2017a).
   Assessment of dietary macronutrient and energy intake, body mass index and body fat percentage among rural female subjects with or without type 2 diabetes mellitus in Sri Lanka.
   International Conference on Multidisciplinary Approach 2017, Sri Lanka.
3. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera (2017b).
   Association of bio-impedance analysis and somatotyping among healthy rural male and female populations.
   10th International Research Conference, General Sir John Kotelawala Defence University 2017, Sri Lanka.
4. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera (2017c).
   Comparison of C-reactive protein levels with insulin resistance and selected parameters of adiposity in a rural diabetic population.
   Scientific Session 2017, Faculty of Medical Sciences, University of Sri Jayewardenepura.
5. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera (2017d).
   Dietary macronutrient intake among Sri Lankan rural female type 2 diabetics and non-diabetics and effect towards the glycemic control.
   3rd International Conference on Public Health 2017 (ICOPH 2017), Kuala Lumpur, Malaysia.

2016

1. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera (2016a).
   Association of markers of obesity with insulin resistance and type 2 diabetes mellitus in a rural female population.
   9th International Research Conference, General Sir John Kotelawala Defence University 2016, Sri Lanka.
2. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera (2016b).
   Comparison of lipid profiles in a population of Type 2 Diabetes Mellitus patients and normal females in a rural area- A preliminary study.
   Scientific Sessions 2016, Faculty of Medical Sciences, University of Sri Jayewardenepura in collaboration with Sri Jayewardenepura General Hospital.
3. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera (2016c).
   Do the lipid profiles of Type 2 Diabetes Mellitus patients and controls differ based on their body fat percentage and visceral fat levels?
   Journal of Clinical Lipidology, 10.
4. Rathnayake, R. G. L., Hettiaratchi, U. P. K. & Perera (2016d).
   Comparison of body fat percentage assessed using skinfold and bio-impedance analysis methods among a selected population of non-diabetic and type 2 diabetic females in Elehera divisional secretariat area and correlation of body fat levels with insulin resistance: a feasibility study.
   3rd International Conference of Multidisciplinary Approaches 2016.

• Member and Council member College of Biochemists Sri Lanka
• Member OWSD (Organization for Women in Science for the Developing World)
• Member Young Scientists Forum

• Biochemistry for the MBBS undergraduates of Year 01 Semester 01 of Faculty of Medicine, Uva Wellassa University of Sri Lanka.