Dr. Pierre Julien is a professor of Medicine at Laval University and the Director of the Endocrinology and Nephrology Research Unit at the Centre de recherche de CHU de Québec-Laval University. He is the Director of the Centre de recherche en endocrinologie, métabolisme et inflammation (CREMI) at Laval University, as well as the President of the Québec Society of Lipidology, Nutrition and Metabolism.

His expertise mainly focusses on the role of fatty acids, particularly omega-3 and trans fatty acids on oxidative stress in various pathologies. Thus, he is involved in the establishment of research pregnancy cohorts, such as INTAPP (International Trial of Antioxidants in the Prevention of Preeclampsia) and IRNPQEO (Integrated Research Network in Perinatology of Quebec and Eastern Ontario) cohorts to study the role of oxidative stress. Including studies on the role of antioxidants such as vitamins E et C, Dr. Julien is also involved in the demonstration of the role of oxidized fatty acids (isoprostanes) as early biomarkers of oxidative stress.

Recently, we have studied the oxidation of long-chain fatty acids by free radicals using novel analytical methods with gas chromatography and high-pressure liquid chromatography combined with mass spectrometry. We have discovered that oxidized fatty acids (isoprostanes), particularly those derived from arachidonic fatty acid (oméga-6), may be used as biomarkers for the early detection of pregnancy hypertension, but also reveal other inflammatory pathologies, such as cancer and diabetes. The actual research program is thus geared at studying the beneficial effects of anti-inflammatory omega-3 fatty acid metabolites compared to metabolites generated by pro-inflammatory omega-6 fatty acids.

We have demonstrated that metabolic and transcriptomic factors may significantly influence the response to dietary supplementation in fatty acids, suggesting inter-individual variations with important pathophysiologic effects. These results shed light on the importance of proposing personalized dietary recommendations, particularly related to the levels of omega-3 and omega-6 fatty acids.

CHUL
2705, boulevard Laurier
T4-07
Québec, Québec
Canada G1V 4G2
+1 418-525-4444, extension 47802
pierre.julien@crchudequeb...

Latest news

40 entries « ‹ 2 of 4 › »

Simard M, Tremblay A, Morin S, Martin C, Julien P, Fradette J, Flamand N, Pouliot R

α-Linolenic acid and linoleic acid modulate the lipidome and the skin barrier of a tissue-engineered skin model

Journal Article

Acta Biomater, 140 , 2022.

Abstract | Links:

Fougère H, Bilodeau JF, Lavoie PM, Mohamed I, Rudkowska I, Pronovost E, Simonyan D, Berthiaume L, Guillot M, Piedboeuf B, Julien P, Marc I

Docosahexaenoic acid-rich algae oil supplementation on breast milk fatty acid profile of mothers who delivered prematurely: a randomized clinical trial

Journal Article

Sci Rep, 11 (1), 2021.

Abstract | Links:

Bilodeau JF, Gagné A, Greffard K, Audibert F, Fraser WD, Julien P

The plasma antioxidant vitamin status of the INTAPP cohort examined: The unsuspected importance of β-carotene and γ-tocopherol in preeclampsia

Journal Article

Pregnancy Hypertens, 25 , 2021.

Abstract | Links:

Fang F, Nuyt AM, Garofalo C, Zhang J, Julien P, Fraser W, Levy E, Luo ZC

Oxidized LDL, insulin sensitivity and beta-cell function in newborns

Journal Article

BMJ Open Diabetes Res Care, 9 (1), 2021.

Abstract | Links:

Chotard E, Mohammadi F, Julien P, Berthiaume L, Rudkowska I, Bertrand N

Drinkable lecithin nanovesicles to study the biological effects of individual hydrophobic macronutrients and food preferences

Journal Article

Food Chem, 322 , 2020.

Abstract | Links:

Simard M, Julien P, Fradette J, Pouliot R

Modulation of the Lipid Profile of Reconstructed Skin Substitutes after Essential Fatty Acid Supplementation Affects Testosterone Permeability

Journal Article

Cells, 8 (10), 2019.

Abstract | Links:

O'Connor S, Greffard K, Leclercq M, Julien P, Weisnagel SJ, Gagnon C, Droit A, Bilodeau JF, Rudkowska I

Increased Dairy Product Intake Alters Serum Metabolite Profiles in Subjects at Risk of Developing Type 2 Diabetes

Journal Article

Mol Nutr Food Res, 63 (19), 2019.

Abstract | Links:

Moussa H, Nguile-Makao M, Robitaille K, Guertin MH, Allaire J, Pelletier JF, Moreel X, Gevariya N, Diorio C, Desmeules P, Tetu B, Lamarche B, Julien P, Fradet V

Omega-3 Fatty Acids Survey in Men under Active Surveillance for Prostate Cancer: from Intake to Prostate Tissue Level

Journal Article

Nutrients, 11 (7), 2019.

Abstract | Links:

Choufani S, Turinsky AL, Melamed N, Greenblatt E, Brudno M, Bérard A, Fraser WD, Weksberg R, Trasler J, Monnier P,

Impact of assisted reproduction, infertility, sex and paternal factors on the placental DNA methylome

Journal Article

Hum Mol Genet, 28 (3), 2019.

Abstract | Links:

O'Connor S, Julien P, Weisnagel SJ, Gagnon C, Rudkowska I

Impact of a High Intake of Dairy Product on Insulin Sensitivity in Hyperinsulinemic Adults: A Crossover Randomized Controlled Trial

Journal Article

Curr Dev Nutr, 3 (8), 2019.

Abstract | Links:

40 entries « ‹ 2 of 4 › »
Signaler des ajouts ou des modifications

Active projects

  • Isoprostanes and phospholipases A2: Roles in the pathophysiology of preeclampsia, from 2017-04-01 to 2025-03-31
  • Maternal Omega-3 supplementation to reduce Bronchopulmonary Dysplasia in very Preterm Infants : A Randomized controlled trial (MOBYDIck trial)., from 2014-07-01 to 2025-03-31
Data provided by the Université Laval research projects registery