Dr. Jean-François Bilodeau, PhD, is a professor in the Laval University School of Medicine’s Department of Medicine and a regular researcher at the CHU of Quebec-Laval University Research Center. His research focuses on the physiological and pathological roles of oxidative stress, at the cellular and tissue levels.
Early detection of hypertension in pregnancy
Hypertensive disorders complicate 5-8% of all pregnancies. Hypertension with proteinuria (preeclampsia) is a complex pathology of the second half of pregnancy, with an estimated prevalence of 3%. Preeclampsia is a major health concern for the newborn and the mother, as it can lead to premature births associated with high perinatal mortality. Currently, there is no effective treatment against it, except for induced childbirth. Our recent work showed that the imbalance between antioxidants and reactive oxygen species (oxidative stress) plays a major role. In addition, this oxidative stress can alter the biosynthesis of bioactive lipids affecting vascular tone (hypertension) and inflammatory response. Our research objectives are to understand the physiopathology in relation to oxidative stress, and to develop a method of early detection of this syndrome.
Targeted lipidomics of oxidized derivatives of polyunsaturated fatty acids
Our laboratory has developed a unique expertise in the determination of hundreds of isomers of oxidized polyunsaturated fatty acids, by mass spectrometry. Omega-3 and omega-6 fatty acids are susceptible to oxidation, and are also the substrate for the eicosanoids involved in inflammation and vascular tone control. Specifically, we use LC-MS /MS and GC /MS methodology, in addition to other complementary methodologies derived from transcriptomics and proteomics.
2705, boulevard Laurier
T-3-67
Québec, Québec
Canada G1V 4G2
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- Fougère, Hélène SuzannePostdoctoral fellowhelene-suzanne.fougere@crchudequebec.ulaval.ca
- Greffard, KarineEmployeeCHULKarine.Greffard@crchudequebec.ulaval.ca
2705, boulevard Laurier
T4-50 / T3-67
Québec, Québec
Canada G1V 4G2
Impact of Dairy Intake on Plasma F-IsoProstane Profiles in Overweight Subjects with Hyperinsulinemia: A Randomized Crossover Trial.
Journal ArticleNutrients, 13 (6), 2021.
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The plasma antioxidant vitamin status of the INTAPP cohort examined: The unsuspected importance of β-carotene and γ-tocopherol in preeclampsia.
Journal ArticlePregnancy Hypertens, 25 , 2021.
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Long chain omega-3 fatty acids and their oxidized metabolites are associated with reduced prostate tumor growth.
Journal ArticleProstaglandins Leukot Essent Fatty Acids, 164 , 2021.
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Maternal vitamin D, oxidative stress, and pre-eclampsia.
Journal ArticleInt J Gynaecol Obstet, 154 (3), 2021.
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Statistical and Machine-Learning Analyses in Nutritional Genomics Studies.
Journal ArticleNutrients, 12 (10), 2020.
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Increased Dairy Product Intake Alters Serum Metabolite Profiles in Subjects at Risk of Developing Type 2 Diabetes.
Journal ArticleMol Nutr Food Res, 63 (19), 2019.
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Physical fitness is associated with prostaglandin F isomers during pregnancy.
Journal ArticleProstaglandins Leukot Essent Fatty Acids, 145 , 2019.
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F-isoprostanes and fatty acids profile in early pregnancy complicated by pre-existing diabetes.
Journal ArticleProstaglandins Leukot Essent Fatty Acids, 135 , 2018.
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Modulation of the biomarkers of inflammation and oxidative stress by ruminant trans fatty acids and dairy proteins in vascular endothelial cells (HUVEC).
Journal ArticleProstaglandins Leukot Essent Fatty Acids, 126 , 2017.
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Increased placental phospholipase A gene expression and free F-isoprostane levels in response to oxidative stress in preeclampsia.
Journal ArticlePlacenta, 55 , 2017.
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Active projects
- Isoprostanes and phospholipases A2: Roles in the pathophysiology of preeclampsia, from 2017-04-01 to 2022-03-31