W M Ratnayake

Summary

Affiliation: Health Canada
Country: Canada

Publications

  1. ncbi Temperature-sensitive resolution of cis- and trans-fatty acid isomers of partially hydrogenated vegetable oils on SP-2560 and CP-Sil 88 capillary columns
    W M Nimal Ratnayake
    Health Canada, Health Products and Food Branch, Nutrition Research Division, Ottawa, Ontario
    J AOAC Int 85:1112-8. 2002
  2. ncbi Overview of methods for the determination of trans fatty acids by gas chromatography, silver-ion thin-layer chromatography, silver-ion liquid chromatography, and gas chromatography/mass spectrometry
    W M Nimal Ratnayake
    Health Canada, Health Products and Food Branch, Food Directorate, Nutrition Research Division, PL 2203C Banting Bldg, Ottawa, Ontario, Canada K1A 0L2
    J AOAC Int 87:523-39. 2004
  3. ncbi Re: Effect of dietary protein and CLA interaction on lipid metabolism in rats
    G Sarwar Gilani
    Lipids 39:601; author reply 601-2. 2004
  4. ncbi Trans fatty acids: current contents in Canadian foods and estimated intake levels for the Canadian population
    W M Nimal Ratnayake
    Health Canada, Health Products and Food Branch, Bureau of Nutritional Sciences, 251 Sir Frederick Banting Dr, Ottawa, ON, Canada K1A 0K9
    J AOAC Int 92:1258-76. 2009
  5. ncbi Dietary phytosterols and phytostanols decrease cholesterol levels but increase blood pressure in WKY inbred rats in the absence of salt-loading
    Qixuan Chen
    Nutrition Research Division, Food Directorate, Health Products and Food Branch, Health Canada, Banting Research Centre, Ottawa, Ontario K1A 0K9, Canada
    Nutr Metab (Lond) 7:11. 2010
  6. ncbi Influence of sources of dietary oils on the life span of stroke-prone spontaneously hypertensive rats
    W M Ratnayake
    Nutrition Research Division, Food Directorate, Health Protection Branch, Health Canada, Ottawa, Ontario
    Lipids 35:409-20. 2000
  7. ncbi Reliable methods for the determination of trans fatty acids and conjugated linoleic acid isomers: an overview
    W M Nimal Ratnayake
    Health Canada, Health Products and Food Branch, Nutrition Research Division, Ottawa, Ontario
    J AOAC Int 87:520-2. 2004
  8. ncbi Comparative health effects of margarines fortified with plant sterols and stanols on a rat model for hemorrhagic stroke
    W M N Ratnayake
    Nutrition Research Division, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, Canada K1A 0L2
    Lipids 38:1237-47. 2003
  9. ncbi Effects of delta5 polyunsaturated fatty acids of maritime pine (Pinus pinaster) seed oil on the fatty acid profile of the developing brain of rats
    E Pasquier
    Nutrition Research Division, Health Products and Food Branch, Health Canada, Ottawa, Ontario
    Lipids 36:567-74. 2001
  10. ncbi The influence of dietary vitamin E, fat, and methionine on blood cholesterol profile, homocysteine levels, and oxidizability of low density lipoprotein in the gerbil
    Nick Hidiroglou
    Nutrition Research Division, Food Directorate, Health Products and Food Branch, Health Canada, Banting Research Centre, Tunneys Pasture, Ottawa, ON, Canada KIAOL2
    J Nutr Biochem 15:730-40. 2004

Collaborators

Detail Information

Publications11

  1. ncbi Temperature-sensitive resolution of cis- and trans-fatty acid isomers of partially hydrogenated vegetable oils on SP-2560 and CP-Sil 88 capillary columns
    W M Nimal Ratnayake
    Health Canada, Health Products and Food Branch, Nutrition Research Division, Ottawa, Ontario
    J AOAC Int 85:1112-8. 2002
    ..The results of this study show that the SP-2560 capillary column has a slight advantage over the CP-Sil 88 column for the simultaneous resolution of all the fatty acids generally found in partially hydrogenated vegetable oils...
  2. ncbi Overview of methods for the determination of trans fatty acids by gas chromatography, silver-ion thin-layer chromatography, silver-ion liquid chromatography, and gas chromatography/mass spectrometry
    W M Nimal Ratnayake
    Health Canada, Health Products and Food Branch, Food Directorate, Nutrition Research Division, PL 2203C Banting Bldg, Ottawa, Ontario, Canada K1A 0L2
    J AOAC Int 87:523-39. 2004
    ..In these columns, there is very little overlap of cis and trans isomers. More accurate trans fatty acid analyses can be obtained by coupling GC with either silver-nitrate thin-layer chromatography or silver-nitrate liquid chromatography...
  3. ncbi Re: Effect of dietary protein and CLA interaction on lipid metabolism in rats
    G Sarwar Gilani
    Lipids 39:601; author reply 601-2. 2004
  4. ncbi Trans fatty acids: current contents in Canadian foods and estimated intake levels for the Canadian population
    W M Nimal Ratnayake
    Health Canada, Health Products and Food Branch, Bureau of Nutritional Sciences, 251 Sir Frederick Banting Dr, Ottawa, ON, Canada K1A 0K9
    J AOAC Int 92:1258-76. 2009
    ....
  5. ncbi Dietary phytosterols and phytostanols decrease cholesterol levels but increase blood pressure in WKY inbred rats in the absence of salt-loading
    Qixuan Chen
    Nutrition Research Division, Food Directorate, Health Products and Food Branch, Health Canada, Banting Research Centre, Ottawa, Ontario K1A 0K9, Canada
    Nutr Metab (Lond) 7:11. 2010
    ....
  6. ncbi Influence of sources of dietary oils on the life span of stroke-prone spontaneously hypertensive rats
    W M Ratnayake
    Nutrition Research Division, Food Directorate, Health Protection Branch, Health Canada, Ottawa, Ontario
    Lipids 35:409-20. 2000
    ....
  7. ncbi Reliable methods for the determination of trans fatty acids and conjugated linoleic acid isomers: an overview
    W M Nimal Ratnayake
    Health Canada, Health Products and Food Branch, Nutrition Research Division, Ottawa, Ontario
    J AOAC Int 87:520-2. 2004
  8. ncbi Comparative health effects of margarines fortified with plant sterols and stanols on a rat model for hemorrhagic stroke
    W M N Ratnayake
    Nutrition Research Division, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, Canada K1A 0L2
    Lipids 38:1237-47. 2003
    ..The results also suggest that the mechanism by which plant stanols shorten the life span of SHRSP rats might differ from that of plant sterols...
  9. ncbi Effects of delta5 polyunsaturated fatty acids of maritime pine (Pinus pinaster) seed oil on the fatty acid profile of the developing brain of rats
    E Pasquier
    Nutrition Research Division, Health Products and Food Branch, Health Canada, Ottawa, Ontario
    Lipids 36:567-74. 2001
    ..05) higher in milk and pup brain of the MPO group. These results show that delta5 PMI-PUFA of MPO exert no negative effect on the levels of n-6 and n-3 LC-PUFA in rat brain during its early development...
  10. ncbi The influence of dietary vitamin E, fat, and methionine on blood cholesterol profile, homocysteine levels, and oxidizability of low density lipoprotein in the gerbil
    Nick Hidiroglou
    Nutrition Research Division, Food Directorate, Health Products and Food Branch, Health Canada, Banting Research Centre, Tunneys Pasture, Ottawa, ON, Canada KIAOL2
    J Nutr Biochem 15:730-40. 2004
    ....
  11. ncbi Limited effects of combined dietary copper deficiency/iron overload on oxidative stress parameters in rat liver and plasma
    Kevin A Cockell
    Nutrition Research Division, Health Products and Food Branch, Health Canada, Ottawa, ON, Canada K1A 0L2
    J Nutr Biochem 16:750-6. 2005
    ..The various substrates (lipid, protein and cholesterol) appeared to differ in their susceptibility to the in vivo oxidative stress induced by dietary Fe overload, but these differences were not exacerbated by Cu deficiency...