Publications by authors named "LeSage J"

Article Synopsis
  • * By analyzing blood samples from 118 kidney recipients over a median follow-up of 6.3 years, researchers developed a risk score based on age and immune cell responses, categorizing patients into low, intermediate, and high-risk groups for OIS.
  • * The results showed that the risk score accurately reflected the likelihood of OIS events, with significant differences in risk percentages across the categories, highlighting the potential for improved personalized monitoring in organ transplant patients.
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Introduction: De novo donor-specific HLA antibody (dnDSA) are associated with poor outcomes. Whether this observation applies to both HLA class I and II dnDSA remains unclear.

Methods: We studied 1236 consecutive kidney recipients who had routine anti-HLA antibody surveillance post-transplant.

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Isocyanates are well-known irritants and sensitizers, and measuring their occupational airborne exposure is challenging due to their high chemical reactivity and semi-volatile nature. This study builds on a previous publication by our team that focused on comparing evaluation methods for isocyanates. The current research aims at developing, validating, and applying a laboratory generation system designed to replicate real-world conditions for spraying clear coats in autobody shops using hexamethylene diisocyanate (HDI)-based products.

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Backgrounds: Streamlined, expedited clinical research is fundamental to rapidly test, translate and implement novel treatments into routine care to improve patient outcomes. The National Mutual Acceptance (NMA) scheme was designed to expedite the ethics approval process, however, growing concerns exist about the fragmented time-consuming governance process needed to actually commence clinical research in Australia. This study reports hurdles and barriers encountered while seeking governance approval for the SCANPatient trial.

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Many terrestrial plant communities, especially forests, have been shown to lag in response to rapid climate change. Grassland communities may respond more quickly to novel climates, as they consist mostly of short-lived species, which are directly exposed to macroclimate change. Here we report the rapid response of grassland communities to climate change in the California Floristic Province.

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Introduction: Pasteurized human donor milk (DM) is frequently used for feeding preterm newborns and extrauterine growth-restricted (EUGR) infants. Most human milk banks performed a pasteurization of DM using the standard method of Holder pasteurization (HoP) which consists of heating milk at 62.5°C for 30 min.

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Background: The microbiological safety of donor milk (DM) is commonly ensured by Holder pasteurization (HoP, 62.5 °C for 30 min) in human milk banks despite its detrimental effects on bioactive factors. We compared the antimicrobial properties of DM after Holder pasteurization treatment or High Hydrostatic Pressure processing (HHP, 350 MPa at 38 °C), a non-thermal substitute for DM sterilization.

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The first 1000 days of life is a critical period that contributes significantly to the programming of an individual's future health. Among the many changes that occur during this period early in life, there is growing evidence that the establishment of healthy gut microbiota plays an important role in the prevention of both short- and long-term health problems. Numerous publications suggest that the quality of the gut microbiota colonisation depends on several dietary factors, including breastfeeding.

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Article Synopsis
  • Human milk oligosaccharides (HMO) are a critical component of breast milk, making up 5 to 20 g per liter and showing complex structures with over 150 types identified.
  • Research indicates that HMOs play significant roles in infant development, aiding gut health, supporting immune function, and promoting neurodevelopment.
  • While some infant formulas contain HMOs, their health benefits are still under investigation, and future studies may explore their use for preterm infants and in preventing chronic diseases related to the immune and nervous systems.
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Sterilized donor milk (DM) is frequently used for feeding preterm infants. To date, the effect of different modes of DM sterilization on short-chain fatty acids (SCFAs) remains unknown. We aimed to quantify SCFAs in DM samples after two types of milk sterilization: the Holder pasteurization (HoP) and a high hydrostatic pressure (HP) processing.

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Background: Human milk banks (HMBs) provide sterilized donor milk (DM) for the feeding of preterm infants. Most HMBs use the standard method of Holder pasteurization (HoP) performed by heating DM at 62.5 °C for 30 min.

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Recent international guidelines recommend rapid initiation and titration of basic treatments of heart failure but do not explain how to achieve this goal. Despite these recommendations, implementation of treatment in daily practice is poor. This may be partly explained by the profile of the patients (frailty, comorbidities), safety considerations and tolerability issues related to kydney function, low blood pressure or heart rate and hyperkalaemia.

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Hexahydro-3-alkyl-3-oxazolo[3,4-]pyridines for the quantitative analysis of various aldehydes were obtained in good yield the condensation reaction of 2-hydroxymethylpiperidine (2-HMP) with aldehydes under mild conditions. When acrolein was used, the bicyclic was obtained. This novel compound has suitable physical characteristics for an analytical standard.

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In preterm infants, sterilized donor milk (DM) is frequently used for feeding when breast milk is lacking. Most human milk banks use the Holder pasteurization method (HoP) to ensure the microbiological safety of DM. However, this method degrades many bioactive factors and hormones.

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Background: An inadequate perinatal nutritional environment can alter the maturation of the intestinal barrier and promote long-term pathologies such as metabolic syndrome or chronic intestinal diseases. The intestinal microbiota seems to play a determining role in the development of the intestinal barrier. In the present study, we investigated the impact of consuming an early postnatal prebiotic fiber (PF) on growth, intestinal morphology and the microbiota at weaning in postnatal-growth-restricted mice (PNGR).

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Objectives: To report stage-specific patterns of treatment and the influence of management and treatment type on survival rates for people newly diagnosed with small cell lung cancer (SCLC).

Design: Cross-sectional patterns of care study; analysis of data prospectively collected for the Victorian Lung Cancer Registry (VLCR).

Setting, Participants: All people diagnosed with SCLC in Victoria during 1 April 2011 - 18 December 2019.

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While global patterns of human genetic diversity are increasingly well characterized, the diversity of human languages remains less systematically described. Here, we outline the Grambank database. With over 400,000 data points and 2400 languages, Grambank is the largest comparative grammatical database available.

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Isocyanates are reactive semivolatile contaminants that must be assessed in occupational environments, and specific evaluation methods are required to address the challenges related to isocyanate emission characteristics. Several standard methods exist, but significant differences remain regarding the diversity of industrial isocyanate emissions. This study presents a method to establish a baseline comparison of three sampling principles.

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The milk metabolome is composed of hundreds of molecules that can impact infant development. In preterm infants, sterilized donor milk (DM) is frequently used for their feeding. We aimed to identify differences in the metabolome of DM after two types of milk sterilization: the Holder pasteurization (HoP) and a high hydrostatic pressure (HP) processing.

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Strain robustness during production of recombinant molecules is of major interest to ensure bioprocess profitability. The heterogeneity of populations has been shown in the literature as a source of instability in bioprocesses. Thus, the heterogeneity of the population was studied by evaluating the robustness of the strains (stability of plasmid expression, cultivability, membrane integrity and macroscopic cell behavior) during well-controlled fedbatch cultures.

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Article Synopsis
  • Interstitial fibrosis and tubular atrophy (IFTA) detected in kidney biopsies one year after transplantation is linked to poor graft outcomes, but how it evolves over time and its relationship with these outcomes is less clear.
  • A study involving 248 adult kidney transplant recipients found that the progression of IFTA (ΔIFTA) was a significant risk factor for graft loss or increased serum creatinine levels.
  • Key factors influencing ΔIFTA included recipient smoking status and donor diabetes, while donor age was predictive of initial IFTA but not its progression, highlighting the importance of understanding these dynamics for better transplant decisions.*
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Livestock grazing is often used as a land management tool to maximize vegetation diversity in grassland ecosystems worldwide. Prior research has shown that cattle grazing benefits native annual forb species in California's coastal prairies, but drought and increasing aridity may alter this relationship. In 2016 and 2017, we resurveyed the vegetation structure, native annual forb cover, and native annual forb richness in ten grazed and ungrazed prairies that were originally measured in 2000 and 2001 along a 200-km gradient from Monterey to Sonoma counties in California.

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Article Synopsis
  • The APJ receptor and its ligands, apelin and elabela, are important for the development of the fetus and placenta.
  • In a study comparing obese and non-obese mothers, researchers found that obesity specifically lowered apelin levels in the cord blood of newborns.
  • However, obesity did not impact levels of elabela in either maternal plasma or cord blood, nor did it change the expression of related genes in the placenta.
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Phenotypic heterogeneity in bioprocesses is suspected to reduce performances, even in case of monoclonal cultures. Here, robustness of an engineered isopropanol-overproducing strain and heterogeneity of its plasmid expression level were evaluated in fed-batch cultures. Previously, eGFP was identified as a promising plasmid expression reporter for C.

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Preterm infants are highly susceptible to oxidative stress due to an imbalance between endogenous oxidant and antioxidant systems. In addition, these newborns are frequently fed with donor milk (DM) treated by Holder pasteurization (HoP) at 62.5 °C for 30 min, which is known to alter numerous heat-sensitive factors, including some antioxidants.

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