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29 Results Found

  • Article
  • Open Access
3 Citations
5,900 Views
24 Pages

23 January 2022

Archean greenstone belts are renowned for their Au endowment. Gold can be associated with orogenic Au style of mineralization and with diorite-hosted Au-Cu disseminated sulfides interpreted as a porphyry style of mineralization. The Regnault Au proje...

  • Review
  • Open Access
19 Citations
4,771 Views
19 Pages

3 October 2020

The proportion of women of reproductive age who are overweight or obese is increasing globally. Gestational obesity is strongly associated in both human studies and animal models with early-onset development of adult-associated metabolic diseases inc...

  • Article
  • Open Access
11 Citations
4,387 Views
13 Pages

Rivaroxaban Effects Illustrate the Underestimated Importance of Activated Platelets in Thrombin Generation Assessed by Calibrated Automated Thrombography

  • Stephanie Makhoul,
  • Marina Panova-Noeva,
  • Véronique Regnault,
  • Wolfram Ruf,
  • Philip Wenzel and
  • Jeremy Lagrange

15 November 2019

Background: The direct oral anticoagulant rivaroxaban inhibiting specifically activated factor X (FXa) causes delayed thrombin generation (TG) as measured by calibrated automated thrombography (CAT). The implications of these changes for assessing bl...

  • Article
  • Open Access
7 Citations
5,202 Views
21 Pages

Maternal Fructose Intake Causes Developmental Reprogramming of Hepatic Mitochondrial Catalytic Activity and Lipid Metabolism in Weanling and Young Adult Offspring

  • Erin Vanessa LaRae Smith,
  • Rebecca Maree Dyson,
  • Christina M. G. Vanderboor,
  • Ousseynou Sarr,
  • Jane Anderson,
  • Mary J. Berry,
  • Timothy R. H. Regnault,
  • Lifeng Peng and
  • Clint Gray

Excess dietary fructose is a major public health concern, yet little is known about its influence on offspring development and later-life disease when consumed in excess during pregnancy. To determine whether increased maternal fructose intake could...

  • Article
  • Open Access
19 Citations
5,265 Views
20 Pages

Microseek: A Protein-Based Metagenomic Pipeline for Virus Diagnostic and Discovery

  • Philippe Pérot,
  • Thomas Bigot,
  • Sarah Temmam,
  • Béatrice Regnault and
  • Marc Eloit

8 September 2022

We present Microseek, a pipeline for virus identification and discovery based on RVDB-prot, a comprehensive, curated and regularly updated database of viral proteins. Microseek analyzes metagenomic Next Generation Sequencing (mNGS) raw data by perfor...

  • Review
  • Open Access
49 Citations
14,157 Views
13 Pages

Microfluidic Devices for Drug Assays

  • Clément Regnault,
  • Dharmendra S. Dheeman and
  • Axel Hochstetter

In this review, we give an overview of the current state of microfluidic-based high-throughput drug assays. In this highly interdisciplinary research field, various approaches have been applied to high-throughput drug screening, including microtiter...

  • Article
  • Open Access
3 Citations
4,102 Views
16 Pages

A Continuous-Time Inequality Measure Applied to Financial Risk: The Case of the European Union

  • Guglielmo D’Amico,
  • Philippe Regnault,
  • Stefania Scocchera and
  • Loriano Storchi

In this paper, we apply information theory measures and Markov processes in order to analyse the inequality in the distribution of the financial risk in a pool of countries. The considered financial variables are sovereign credit ratings and interest...

  • Article
  • Open Access
4,315 Views
26 Pages

Placental Morphology and Metabolomic Profile in Uncomplicated Metabolically Healthy Obese Pregnancy

  • Ousseynou Sarr,
  • Akasham Rajagopaul,
  • Shuang Zhao,
  • Xiaohang Wang,
  • David Grynspan,
  • Genevieve Eastabrook,
  • Liang Li,
  • Timothy R. H. Regnault and
  • Barbra de Vrijer

Background/Objectives: Individuals with metabolically healthy obesity (MHO) and metabolically unhealthy obesity (MUO) in pregnancy are two distinct cardiometabolic populations, each potentially necessitating alternative clinical management. However,...

  • Feature Paper
  • Review
  • Open Access
8 Citations
7,911 Views
12 Pages

Microfluidics-Based Approaches to the Isolation of African Trypanosomes

  • Michael P. Barrett,
  • Jonathan M. Cooper,
  • Clément Regnault,
  • Stefan H. Holm,
  • Jason P. Beech,
  • Jonas O. Tegenfeldt and
  • Axel Hochstetter

African trypanosomes are responsible for significant levels of disease in both humans and animals. The protozoan parasites are free-living flagellates, usually transmitted by arthropod vectors, including the tsetse fly. In the mammalian host they liv...

  • Article
  • Open Access
3 Citations
2,436 Views
20 Pages

Virus Pop—Expanding Viral Databases by Protein Sequence Simulation

  • Julia Kende,
  • Massimiliano Bonomi,
  • Sarah Temmam,
  • Béatrice Regnault,
  • Philippe Pérot,
  • Marc Eloit and
  • Thomas Bigot

24 May 2023

The improvement of our knowledge of the virosphere, which includes unknown viruses, is a key area in virology. Metagenomics tools, which perform taxonomic assignation from high throughput sequencing datasets, are generally evaluated with datasets der...

  • Article
  • Open Access
5 Citations
3,718 Views
17 Pages

Novel PD-L1-Targeted Phenyl-Pyrazolone Derivatives with Antioxidant Properties

  • Romain Regnault,
  • Frédérique Klupsch,
  • Hassiba El-Bouazzati,
  • Romain Magnez,
  • Raphaël Le Biannic,
  • Natascha Leleu-Chavain,
  • Hania Ahouari,
  • Hervé Vezin,
  • Régis Millet and
  • Christian Bailly
  • + 2 authors

15 April 2023

Orally-active anticancer small molecules targeting the PD-1/PD-L1 immune checkpoint are actively searched. Phenyl-pyrazolone derivatives with a high affinity for PD-L1 have been designed and characterized. In addition, the phenyl-pyrazolone unit acts...

  • Article
  • Open Access
1 Citations
2,997 Views
21 Pages

Genotype and Phenotype Characterization of Rhinolophus sp. Sarbecoviruses from Vietnam: Implications for Coronavirus Emergence

  • Sarah Temmam,
  • Tran Cong Tu,
  • Béatrice Regnault,
  • Massimiliano Bonomi,
  • Delphine Chrétien,
  • Léa Vendramini,
  • Tran Nhu Duong,
  • Tran Vu Phong,
  • Nguyen Thi Yen and
  • Marc Eloit
  • + 9 authors

8 September 2023

Bats are a major reservoir of zoonotic viruses, including coronaviruses. Since the emergence of SARS-CoV in 2002/2003 in Asia, important efforts have been made to describe the diversity of Coronaviridae circulating in bats worldwide, leading to the d...

  • Article
  • Open Access
22 Citations
4,344 Views
20 Pages

Deep Impact of Random Amplification and Library Construction Methods on Viral Metagenomics Results

  • Béatrice Regnault,
  • Thomas Bigot,
  • Laurence Ma,
  • Philippe Pérot,
  • Sarah Temmam and
  • Marc Eloit

7 February 2021

Clinical metagenomics is a broad-range agnostic detection method of pathogens, including novel microorganisms. A major limit is the low pathogen load compared to the high background of host nucleic acids. To overcome this issue, several solutions exi...

  • Protocol
  • Open Access
8 Citations
11,557 Views
7 Pages

Time Mating Guinea Pigs by Monitoring Changes to the Vaginal Membrane throughout the Estrus Cycle and with Ultrasound Confirmation

  • Rebecca L. Wilson,
  • Kristin Lampe,
  • Brad J. Matushewski,
  • Timothy R. H. Regnault and
  • Helen N. Jones

One of the greatest challenges to the development and implementation of pregnancy therapeutics is the ability to rigorously test treatments in clinically relevant animal models. Guinea pigs offer a unique advantage in studying the placenta, fetal dev...

  • Article
  • Open Access
26 Citations
8,660 Views
16 Pages

Analysis of Phthalates and Alternative Plasticizers in Gloves by Gas Chromatography–Mass Spectrometry and Liquid Chromatography–UV Detection: A Comparative Study

  • Kelly Poitou,
  • Tiphaine Rogez-Florent,
  • Marie Lecoeur,
  • Cécile Danel,
  • Romain Regnault,
  • Philippe Vérité,
  • Christelle Monteil and
  • Catherine Foulon

28 August 2021

Gloves represent an essential feature for hand protection because it is a requirement in the professional framework to comply with both hand hygiene standards and the principles of good laboratory practice. Despite their wide use, there is a knowledg...

  • Article
  • Open Access
4 Citations
3,203 Views
36 Pages

An Integrated Multi-OMICS Approach Highlights Elevated Non-Esterified Fatty Acids Impact BeWo Trophoblast Metabolism and Lipid Processing

  • Zachary J. W. Easton,
  • Ousseynou Sarr,
  • Lin Zhao,
  • Adriana Zardini Buzatto,
  • Xian Luo,
  • Shuang Zhao,
  • Liang Li and
  • Timothy R. H. Regnault

Maternal obesity and gestational diabetes mellitus (GDM) are linked with impaired placental function and early onset of non-communicable cardiometabolic diseases in offspring. Previous studies have highlighted that the dietary non-esterified fatty ac...

  • Article
  • Open Access
36 Citations
6,157 Views
15 Pages

Health Benefits of Supplementing Nursery Pig Diets with Microalgae or Fish Oil

  • Alison V. Lee,
  • Lan You,
  • Se-Young Oh,
  • Ziwei Li,
  • Alexandra Code,
  • Cuilan Zhu,
  • Rebecca E. Fisher-Heffernan,
  • Timothy R. H. Regnault,
  • Cornelis F. M. De Lange and
  • Niel A. Karrow
  • + 1 author

5 March 2019

Weaning stress can negatively impact a pig’s performance; dietary supplementation with omega-3 polyunsaturated fatty acids (n-3 PUFA) reduces inflammatory stress and promotes nursery pig’s health and growth. Fish oil (FO) is a major sourc...

  • Proceeding Paper
  • Open Access
1,315 Views
8 Pages

Conditions are highlighted for generalized entropies to allow for non-trivial time-averaged entropy rates for a large class of random sequences, including Markov chains and continued fractions. The axiomatic-free conditions arise from the behavior of...

  • Proceeding Paper
  • Open Access
2,112 Views
7 Pages

Analysis of Ecological Networks: Linear Inverse Modeling and Information Theory Tools

  • Valérie Girardin,
  • Théo Grente,
  • Nathalie Niquil and
  • Philippe Regnault

In marine ecology, the most studied interactions are trophic and are in networks called food webs. Trophic modeling is mainly based on weighted networks, where each weighted edge corresponds to a flow of organic matter between two trophic compartment...

  • Review
  • Open Access
208 Citations
24,970 Views
30 Pages

Placental Adaptations in Growth Restriction

  • Song Zhang,
  • Timothy R.H. Regnault,
  • Paige L. Barker,
  • Kimberley J. Botting,
  • Isabella C. McMillen,
  • Christine M. McMillan,
  • Claire T. Roberts and
  • Janna L. Morrison

8 January 2015

The placenta is the primary interface between the fetus and mother and plays an important role in maintaining fetal development and growth by facilitating the transfer of substrates and participating in modulating the maternal immune response to prev...

  • Editorial
  • Open Access
94 Citations
17,372 Views
5 Pages

4 June 2016

Maternal nutrition during pregnancy, and how this impacts placental and fetal growth and metabolism, is of considerable interest to women, their partners and their health care professionals.[...]

  • Review
  • Open Access
40 Citations
8,377 Views
15 Pages

12 February 2015

The importance of the in utero environment as a contributor to later life metabolic disease has been demonstrated in both human and animal studies. In this review, we consider how disruption of normal fetal growth may impact skeletal muscle metabolic...

  • Article
  • Open Access
12 Citations
4,826 Views
22 Pages

Transcriptional Shift and Metabolic Adaptations during Leishmania Quiescence Using Stationary Phase and Drug Pressure as Models

  • Marlene Jara,
  • Michael Barrett,
  • Ilse Maes,
  • Clement Regnault,
  • Hideo Imamura,
  • Malgorzata Anna Domagalska and
  • Jean-Claude Dujardin

Microorganisms can adopt a quiescent physiological condition which acts as a survival strategy under unfavorable conditions. Quiescent cells are characterized by slow or non-proliferation and a deep downregulation of processes related to biosynthesis...

  • Article
  • Open Access
14 Citations
3,477 Views
20 Pages

Impact of Diabetes and Metformin Use on Enteropancreatic Neuroendocrine Tumors: Post Hoc Analysis of the CLARINET Study

  • Sara Pusceddu,
  • Claudio Vernieri,
  • Massimo Di Maio,
  • Natalie Prinzi,
  • Martina Torchio,
  • Francesca Corti,
  • Jorgelina Coppa,
  • Roberto Buzzoni,
  • Maria Di Bartolomeo and
  • Filippo de Braud
  • + 4 authors

23 December 2021

The prognostic role of diabetes mellitus (DM) in advanced enteropancreatic neuroendocrine tumors (NETs) is unclear. Progression free survival (PFS) was assessed in post-hoc analyses of the 96-week, phase III, double-blind, placebo-controlled CLARINET...

  • Article
  • Open Access
8 Citations
4,177 Views
30 Pages

Differential and Synergistic Effects of Low Birth Weight and Western Diet on Skeletal Muscle Vasculature, Mitochondrial Lipid Metabolism and Insulin Signaling in Male Guinea Pigs

  • Kristyn Dunlop,
  • Ousseynou Sarr,
  • Nicole Stachura,
  • Lin Zhao,
  • Karen Nygard,
  • Jennifer A. Thompson,
  • Jennifer Hadway,
  • Bryan S. Richardson,
  • Yves Bureau and
  • Timothy R. H. Regnault
  • + 2 authors

29 November 2021

Low birth weight (LBW) offspring are at increased risk for developing insulin resistance, a key precursor in metabolic syndrome and type 2 diabetes mellitus. Altered skeletal muscle vasculature, extracellular matrix, amino acid and mitochondrial lipi...

  • Article
  • Open Access
12 Citations
5,017 Views
26 Pages

Multi Platforms Strategies and Metabolomics Approaches for the Investigation of Comprehensive Metabolite Profile in Dogs with Babesia canis Infection

  • Ivana Rubić,
  • Richard Burchmore,
  • Stefan Weidt,
  • Clement Regnault,
  • Josipa Kuleš,
  • Renata Barić Rafaj,
  • Tomislav Mašek,
  • Anita Horvatić,
  • Martina Crnogaj and
  • Vladimir Mrljak
  • + 2 authors

29 January 2022

Canine babesiosis is an important tick-borne disease worldwide, caused by parasites of the Babesia genus. Although the disease process primarily affects erythrocytes, it may also have multisystemic consequences. The goal of this study was to explore...

  • Article
  • Open Access
2,274 Views
17 Pages

Impact of Extended Use of Ablation Techniques in Cirrhotic Patients with Hepatocellular Carcinoma: A Cost-Effectiveness Analysis

  • Toulsie Ramtohul,
  • Valérie Vilgrain,
  • Olivier Soubrane,
  • Mohamed Bouattour,
  • Alain Luciani,
  • Hicham Kobeiter,
  • Sébastien Mule,
  • Vania Tacher,
  • Alexis Laurent and
  • Olivier Seror
  • + 6 authors

26 May 2022

Background: To evaluate the cost-effectiveness of the extended use of ablation for the treatment of hepatocellular carcinoma (HCC) with cirrhosis in an expert ablation center when compared to the non-extended use of ablation in equivalent tertiary ca...

  • Article
  • Open Access
6 Citations
3,402 Views
15 Pages

Antioxidant Properties and Aldehyde Reactivity of PD-L1 Targeted Aryl-Pyrazolone Anticancer Agents

  • Natascha Leleu-Chavain,
  • Romain Regnault,
  • Hania Ahouari,
  • Raphaël Le Biannic,
  • Mostafa Kouach,
  • Frédérique Klupsch,
  • Romain Magnez,
  • Hervé Vezin,
  • Xavier Thuru and
  • Régis Millet
  • + 2 authors

Small molecules targeting the PD-1/PD-L1 checkpoint are actively searched to complement the anticancer arsenal. Different molecular scaffolds have been reported, including phenyl-pyrazolone derivatives which potently inhibit binding of PD-L1 to PD-1....

  • Article
  • Open Access
25 Citations
4,067 Views
16 Pages

Evaluating Large Language Model (LLM) Performance on Established Breast Classification Systems

  • Syed Ali Haider,
  • Sophia M. Pressman,
  • Sahar Borna,
  • Cesar A. Gomez-Cabello,
  • Ajai Sehgal,
  • Bradley C. Leibovich and
  • Antonio Jorge Forte

Medical researchers are increasingly utilizing advanced LLMs like ChatGPT-4 and Gemini to enhance diagnostic processes in the medical field. This research focuses on their ability to comprehend and apply complex medical classification systems for bre...