Article
Environmental Sciences
Youmi Oh, Qianlai Zhuang, Lisa R. Welp, Licheng Liu, Xin Lan, Sourish Basu, Edward J. Dlugokencky, Lori Bruhwiler, John B. Miller, Sylvia E. Michel, Stefan Schwietzke, Pieter Tans, Philippe Ciais, Jeffrey P. Chanton
Summary: This study calculates the isotopic composition of global wetland methane emissions using a model and finds that tropical wetland emissions have higher isotopic composition compared to boreal wetlands. The improved atmospheric simulation suggests that the increase in atmospheric methane since 2007 is due to rising microbial emissions.
COMMUNICATIONS EARTH & ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Aleksandra Percin, Ivana Sestak, Ivan Dugan, Milan Mesic, Ivica Kisic, Marina Baricevic, Zeljka Zgorelec
Summary: This study aimed to compare the abundance of N-15 isotope in soils from different land use types in inland and coastal areas of Croatia, and to explore the relationship between nitrogen sources in soils and different soil management practices. The results reveal variations in the mean δN-15 abundance among different land use types in soils.
Article
Environmental Sciences
Wei Guo, Li Luo, Zhongyi Zhang, Nengjian Zheng, Hongwei Xiao, Huayun Xiao
Summary: The study shows that nitrate in southern China, especially during warm months, is mainly derived from the OH radical pathway, while changes in formation pathways and isotopic composition are influenced by air pollution emissions. Higher isotopic values from NOx emissions in northern areas and during cold months lead to higher nitrate isotopic compositions.
ENVIRONMENTAL RESEARCH
(2021)
Article
Environmental Sciences
Noshan Bhattarai, Shuxiao Wang
Summary: This study compared the isotopic composition of NH3 in ambient air using two different sampling methods (CCSCs and ALPHA). The results showed that ALPHA measured lower NH3 concentrations compared to CCSCs, and different filter configurations and sampling durations had an impact on the isotopic composition.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Engineering, Environmental
Megan L. Purchase, Gary D. Bending, Ryan M. Mushinski
Summary: This study provides a unique investigation of NOy fluxes on a landscape scale, considering land-use types, human influence, and seasonality, to determine large-scale heterogeneity and provide a basis for future modeling and hypothesis generation. The study finds significant differences in functional potential and activity of nitrifying and denitrifying soil microbes linked to NOy emissions, and suggests that human influence is a more significant effector of soil NOy emissions than land-use type.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Geochemistry & Geophysics
Nicole X. Nie, Xin-Yang Chen, Zhe J. Zhang, Justin Y. Hu, Weiyi Liu, Francois L. H. Tissot, Anat Shahar, Fang-Zhen Teng, Nicolas Dauphas
Summary: This article reports the Rb and K isotopic data of 7 ordinary, 6 enstatite, and 4 Martian meteorites to understand the causes of variations in volatile abundances and isotopic compositions. The study finds a broad correlation between the Rb and K isotopic compositions of planetary bodies, suggesting volatility-controlled mass-dependent isotope fractionation. The large isotopic variations in non-carbonaceous meteorites are most likely due to diffusive redistribution of K and Rb during metamorphism and/or shock-induced heating and vaporization. Rating: 8/10.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2023)
Article
Engineering, Environmental
Mengna Gu, Yuepeng Pan, Wendell W. Walters, Qian Sun, Linlin Song, Yuesi Wang, Yifeng Xue, Yunting Fang
Summary: NH3 concentrations in winter mornings in urban Beijing are enhanced by vehicle emissions, which is a common phenomenon with significant diurnal variations.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Piaopiao Ke, Ronghua Kang, Loreena K. Avery, Jiawei Zhang, Qian Yu, Danni Xie, Lei Duan
Summary: Soils in subtropical forests in South China were found to have significant emissions of NO, which could be attributed to high nitrogen deposition. Soil temperature and water filled pore spaces were important factors regulating NO emissions, along with ambient NO concentration and rainfall. Additionally, differences in mineral nitrogen and soil moisture conditions between sites influenced the NO emissions characteristics.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Guy S. Marion, Stacy D. Jupiter, Veronica Z. Radice, Simon Albert, Ove Hoegh-Guldberg
Summary: A multi-tracer approach was used to identify nitrogen sources in the skeletons of nearshore Porites corals within the Great Barrier Reef. Different end-members from marine plankton, estuarine matter, freshwater phytoplankton, terrigenous soil, and terrestrial plant detritus were identified based on isotopic values. The nitrogen composition in coastal waters, including 15N-enriched values during flood pulses from the Pioneer River, was reflected in the adjacent nearshore Porites coral skeletons.
MARINE POLLUTION BULLETIN
(2021)
Article
Plant Sciences
Sophie Jasinski, Isabelle Fabrissin, Amandine Masson, Anne Marmagne, Alain Lecureuil, Laurence Bill, Fabien Chardon
Summary: Leaf senescence is a molecular process involving cell death triggered by internal and external factors. The gene ACD6 has been identified as a key regulator of leaf senescence and nitrogen remobilization in Arabidopsis thaliana. This study demonstrates the importance of ACD6 in regulating both sequential and monocarpic senescences and the balance between nitrogen remobilization and uptake for seed filling.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Pharmacology & Pharmacy
Milijana N. Miljkovic, Nemanja Rancic, Aleksandra Kovacevic, Bojana Cikota-Aleksic, Ivan Skadric, Vesna Jacevic, Momir Mikov, Viktorija Dragojevic-Simic
Summary: This study analyzed the influence of body mass index, gender, and age on the pharmacokinetics of itraconazole in healthy subjects. The results showed that gender had a significant effect on the pharmacokinetics of itraconazole, while body mass index and age did not show such an influence. Women had lower exposure to itraconazole compared to men, possibly due to poorer absorption, more intense pre-systemic metabolism, and higher distribution of the drug and its metabolite.
FRONTIERS IN PHARMACOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Wilton Aguiar, Sang-Ki Lee, Hosmay Lopez, Shenfu Dong, Helene Seroussi, Dani C. Jones, Adele K. Morrison
Summary: Melting of the ice sheet in the Southern Ocean has implications for the formation and properties of the Antarctic Bottom Water (AABW). Models have been used to examine the effects of different spatial distributions and magnitudes of meltwater fluxes on AABW. The study finds that a realistic and spatially varying meltwater flux can sustain AABW with higher salinities compared to uniform meltwater flux simulations. Furthermore, the increasing meltwater discharge from the Antarctic ice sheet can contribute to the observed freshening of AABW.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Forestry
Zijun Deng, Xin Liu, Haoran Zu, Junyi Luo, Ying Chen, Meiling Yi, Xiao Wang, Xiaocui Liang, Xiang Zhang, Wende Yan
Summary: The study analyzes the urban carbon dioxide flux in Changsha City, China, using the eddy covariance technique and flux footprint model. The findings reveal the patterns of flux footprint range, diurnal variation, and spatial characteristics, providing guidance for climate management, urban planning, and sustainable development.
Article
Meteorology & Atmospheric Sciences
Wei Song, Xue-Yan Liu, Cong-Qiang Liu
Summary: This study calculated the nitrogen isotope effects between NOx and p-NO3- and reevaluated the relative contributions of major fossil and non-fossil fuel NOx emissions at different sites. The results indicate that non-fossil fuel NOx emissions generally have higher contributions and should be emphasized in future emission management.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Marine & Freshwater Biology
Ding He, Victor H. Rivera-Monroy, Rudolf Jaffe, Xiaochen Zhao
Summary: Distinct differences in green leaves wax n-alkane delta(13)(delta C-13(n-alkane)) values and brown-senescent leaves C:N atomic ratios and total phosphorus (TP) concentrations of three mangrove species reflect ecophysiological adaptations to nutrient availability and salinity. Isotopic footprints and bulk delta C-13 values in different species along estuarine salinity regions suggest potential for using leaf wax n-alkane delta C-13 values as a salinity proxy for paleoclimate reconstruction.
ESTUARINE COASTAL AND SHELF SCIENCE
(2021)
Article
Nutrition & Dietetics
Clelia M. Bianchi, Francois Mariotti, Elodie Reulet, Gaelle Le Goff, Anne Lluch, Eric O. Verger, Jean-Francois Huneau, Patricia Gurviez
Summary: This study investigated the expectations and motivations of French pregnant women regarding tailored dietary advice during pregnancy. The majority of pregnant women expressed their intention to make healthier dietary changes to ensure the health and well-being of themselves and their babies. Tailored dietary counseling, based on individual needs and current diet, was perceived as enabling the adoption of healthier dietary practices. However, perceived barriers, especially when involving significant modifications to their usual diet, might limit the implementation of dietary changes.
Article
Nutrition & Dietetics
Gaia Lepine, Marie Tremblay-Franco, Sabrine Bouder, Laurianne Dimina, Helene Fouillet, Francois Mariotti, Sergio Polakof
Summary: This review discusses the use of metabolomics analyses in assessing phenotypic flexibility in response to different nutritional challenge tests. The findings reveal subtle metabolic dysregulations during the postprandial period, particularly in populations with increased cardiometabolic risk. The characterization of postprandial metabolism and phenotypic flexibility shows promise in understanding the onset of cardiometabolic diseases.
Article
Nutrition & Dietetics
Laurianne Dimina, Justine Landais, Veronique Mathe, Marianne Jarzaguet, Cindy Le Bourgot, Dominique Hermier, Francois Mariotti, Didier Remond, Laurent Mosoni
Summary: This study aimed to evaluate the maintenance effect of a plant protein blend on muscle protein mass and function during aging compared to milk proteins. The results showed no significant difference between the two protein types in maintaining lean body mass, muscle mass, and muscle functionality during aging.
JOURNAL OF NUTRITION
(2023)
Article
Nutrition & Dietetics
Gaia Lepine, Jean-Francois Huneau, Didier Remond, Veronique Mathe, Jeremie David, Dominique Hermier, Laetitia Guerin-Deremaux, Catherine Lefranc-Millot, Nathalie Poupin, Francois Mariotti, Sergio Polakof, Helene Fouillet
Summary: Using cutting-edge isotopic methods, researchers found that plant proteins are associated with better cardiovascular health than animal proteins. In an animal study, it was discovered that plant proteins can reduce lipid accumulation and de novo lipogenesis, while also reducing insulin resistance. Plant proteins can better regulate protein metabolism and reduce whole-body and tissue metabolic dysregulations.
JOURNAL OF NUTRITION
(2023)
Article
Environmental Sciences
Elie Perraud, Juhui Wang, Marion Salome, Francois Mariotti, Emmanuelle Kesse-Guyot
Summary: Protein intake patterns are linked to the environmental and nutrition/health impacts of diets. This study analyzed the alignment of environmental pressures and nutritional impacts in different protein profiles of a western population. The results showed that the protein profile with the lowest meat intake had the lowest environmental impact and long-term risk.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Green & Sustainable Science & Technology
Emmanuelle Kesse-Guyot, Benjamin Alles, Josephine Brunin, Helene Fouillet, Alison Dussiot, Florine Berthy, Elie Perraud, Serge Hercberg, Chantal Julia, Francois Mariotti, Melanie Deschasaux-Tanguy, Bernard Srour, Denis Lairon, Philippe Pointereau, Julia Baudry, Mathilde Touvier
Summary: Our understanding of the environmental pressures associated with dietary patterns has grown in the last decade, but little research has focused on the impacts of ultra-processed food (UPF) consumption and the specific stages in the food chain that contribute the most. This study examined the environmental pressures of diets based on UPF consumption using data from a representative sample of French adults. The results showed that UPF accounted for 19% of the diet, but contributed significantly to greenhouse gas emissions, water use, land use, and energy demand. The processing and packaging stages were found to have substantial environmental impacts in UPF-rich diets.
NATURE SUSTAINABILITY
(2023)
Article
Nutrition & Dietetics
Florine Berthy, Josephine Brunin, Benjamin Alles, Anouk Reuze, Mathilde Touvier, Serge Hercberg, Denis Lairon, Philippe Pointereau, Francois Mariotti, Julia Baudry, Emmanuelle Kesse-Guyot
Summary: The nutritional quality of the EAT-Lancet reference diet has been rarely evaluated. This study examined the food and nutritional intakes of the French population and investigated the consistency between the French national recommendations and the EAT-Lancet reference diet. The results showed that adherence to the EAT-Lancet diet was associated with a decrease in nutrient inadequacy, but certain nutrients remained inadequate in all adherence levels.
AMERICAN JOURNAL OF CLINICAL NUTRITION
(2023)
Article
Nutrition & Dietetics
Marion Salome, Francois Mariotti, Alison Dussiot, Emmanuelle Kesse-Guyot, Jean-Francois Huneau, Helene Fouillet
Summary: This study aimed to investigate the extent to which plant-based meat substitutes can improve the nutritional adequacy and healthiness of dietary patterns. By analyzing diets of French adults, two types of plant-based meat substitutes were introduced and modeled, and the optimized substitute with sufficient zinc and iron for a substantial reduction in red meat intake was found to contribute to healthier modeled diets and align with dietary guidelines.
EUROPEAN JOURNAL OF NUTRITION
(2023)
Letter
Nutrition & Dietetics
Francois Mariotti, Jean-Francois Huneau, Helene Fouillet
JOURNAL OF NUTRITION
(2023)
Article
Nutrition & Dietetics
Mark Messina, Alison M. Duncan, Andrea J. Glenn, Francois Mariotti
Summary: The health and environmental benefits of plant-based diets are leading to a reduction in animal product consumption. Health organizations and professionals need to provide guidance on making this change. Consuming more plant protein instead of animal protein can have potential benefits, and advising an equal amount from each source is more likely to be accepted. However, current plant protein consumption mainly comes from refined grains, which do not provide the same benefits as plant-based diets. Legumes, on the other hand, provide ample protein and other health-promoting components, but their contribution to global protein intake is minimal. Plant-based meat alternatives made from legumes can be a viable option for transitioning to a plant-based diet and can be fortified with essential nutrients. Whether these alternatives offer the same benefits as whole legumes is yet to be established.
ADVANCES IN NUTRITION
(2023)
Article
Food Science & Technology
Remi Poissant, Francois Mariotti, Daniel Zalko, Jeanne-Marie Membre
Summary: The objective of this study was to suggest a relatively simple method to classify and rank food products based on their microbiological, chemical and nutritional risks. The method was applied to 17 ready-to-eat dishes available in the French market, considering both food safety and nutrition/health risks.
FOOD RESEARCH INTERNATIONAL
(2023)
Article
Green & Sustainable Science & Technology
Alison Dussiot, Helene Fouillet, Elie Perraud, Marion Salome, Jean-Francois Huneau, Francois Mariotti, Emmanuelle Kesse-Guyot
Summary: Shifts in dietary patterns are important for health and the environment, and ruminant meat is a critical component. A gradual reduction in ruminant meat consumption and replacement with poultry can lead to nutritionally adequate and healthy diets. This transition can improve greenhouse gas emissions and land use, but may increase water usage.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Nutrition & Dietetics
Francois Mariotti
Summary: Plant-based substitutes (PBS) are a convenient way to transition to a more plant-based diet, but their potential health benefits and nutritional concerns remain debated. Based on a review of the literature, it is concluded that the primary risk of insufficient nutrient intake with PBS concerns iron and calcium. Other risks depend on the characteristics of the overall diet. The use of PBS is expected to confer some benefits for long-term health, but attention should be paid to a potential increase in sodium intake with PBS of meat products. PBS is a very heterogeneous food category involving variations in ingredient and nutrient composition, and its design could be improved to foster nutritional and health benefits. Fortification of PBS with key nutrients like iron and calcium may be a solution to shift towards PBS in western countries' dietary transition.
PROCEEDINGS OF THE NUTRITION SOCIETY
(2023)