Publications by authors named "Bordes A"

In this study, we present the synthesis, characterization, and structural analysis of a novel zeolite, ITQ-70, using 3D electron diffraction. This unique material was synthesized under alkaline conditions, employing tetrakis(diethylamino)phosphonium as an organic structure-directing agent, leading to the formation of a pure silica zeolite. ITQ-70 is distinguished by its extra-large pore apertures, which extend along all three axes and intersect one to the other.

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Transition to circular economy for lithium-ion batteries used in electric vehicles requires integrating multiple stages of the value cycle. However, strategies aimed at extending the lifetime of batteries are not yet sufficiently considered within the European battery industry, particularly regarding repurposing. Using second-life lithium-ion batteries (SLBs) before subsequent recycling can offer several advantages, such as the development of sustainable business models, the reduction of emissions, and alignment with UN Sustainable Development Goals 7, 12, and 13.

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  • The research investigates how variations in microbial communities in seasonally flooded forests are influenced not just by environmental factors, but also by plant traits.
  • Two null models were used to analyze microbial communities from 72 seedlings of seven tropical tree species in French Guiana, revealing the dominance of stochastic processes in community assembly, with differences observed between fungi and bacteria.
  • The study emphasizes the importance of understanding tree species and their associated microbial communities to better inform adaptation strategies in the context of climate change, suggesting further exploration of additional plant traits.
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Background: Recessive deleterious variants are known to segregate in livestock populations, as in humans, and some may be lethal in the homozygous state.

Results: We used phased 50 k single nucleotide polymorphism (SNP) genotypes and pedigree data to scan the genome of 6845 Manech Tête Rousse dairy sheep to search for deficiency in homozygous haplotypes (DHH). Five Manech Tête Rousse deficient homozygous haplotypes (MTRDHH1 to 5) were identified, with a homozygous deficiency ranging from 84 to 100%.

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  • Chromosomal inversions contribute to genetic diversity and reproductive isolation between evolutionary lineages, impacting speciation.
  • In studying the long-snouted seahorse, researchers identified two significant chromosomal inversions that vary in frequency among different geographic lineages and ecotypes.
  • These inversions are suggested to be ancient polymorphisms with one maintained through divergent selection and the other through pseudo-overdominance, revealing complex interactions influencing reproductive traits and evolutionary dynamics.
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Purpose: Patients with severe drug-resistant epilepsy (DRE) experience psychomotor disorders. Our study aimed to assess the psychomotor outcomes after vagus nerve stimulation (VNS) in this population.

Methods: We prospectively evaluated psychomotor function in 17 adult patients with severe DRE who were referred for VNS.

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  • The study investigates whether testicular sperm extraction (TESE) should be done after puberty or delayed until adulthood in patients with non-mosaic 47,XXY Klinefelter syndrome (KS).
  • Results show no significant difference in sperm retrieval rate (SRR) between younger patients (ages 15-22) and older patients (ages 23-43), with overall SRR at 45.4%.
  • Key hormonal factors like Anti-Müllerian hormone (AMH) and inhibin B were found to be higher in the younger group and in patients who successfully retrieved sperm.
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We recently demonstrated that the Lacaune deficient homozygous haplotype 6 (LDHH6) potentially hosts a recessive perinatal lethal mutation in Lacaune dairy sheep mapped on OAR3. In the present study, we have analyzed the whole-genome sequences of two Lacaune ram heterozygous carriers of LDHH6. After variant calling and filtering against the variants of 86 non-carrier rams, we have identified a single nucleotide variant (SNV) in the two LDHH6 carriers whose variant allele induced a premature stop codon (p.

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We report the synthesis of seven-membered iminosugars derived from a 3-acetamido-4,5,6-trihydroxyazepane scaffold and their evaluation as inhibitors of functionally related -acetylhexosaminidases including human -GlcNAcase (OGA), human lysosomal β-hexosaminidase (HexAB), and NagZ. Capitalizing on the flexibility of azepanes and the active site tolerances of hexosaminidases, we explore the effects of epimerization of stereocenters at C-3, C-5 and C-6 and -alkylation at the C-2 or C-7 positions. Accordingly, epimerization at C-6 (L-ido) and at C-5 (D-galacto) led to selective HexAB inhibitors whereas introduction of a propyl group at C-7 on the C-3 epimer furnished a potent NagZ inhibitor.

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Crocins in commercial liquid saffron extracts (Saffr'activ®) were identified using high-performance liquid chromatography (HPLC) with a diode array detector (DAD) and mass spectrometry (MS). The impact of storage on the qualities of the saffron extract were studied with HPLC-DAD-MS by exposing trans-4-GG crocin to environmental factors. Light and temperature induced degradation after only one week.

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Capitalizing on a recently reported iminosugar-based aza-crown (ISAC) accessed by a double Staudinger azaWittig coupling reaction, we have expanded the structural diversity of this new family of sweet cyclam analogs. Replacement of the two secondary amines linking the iminosugar units by two amide bonds obtained a cyclodimerization by with BOP and DIPEA led to a macrocycle that did not demonstrate efficient Zn chelation unlike the parent ISAC. Introduction of two pyrene moieties on the secondary amines of the parent ISAC yielded a new fluoroionophore that selectively binds Hg in methanol.

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In a number of species, individuals exposed to pathogens can mount an immune response and transmit this immunological experience to their offspring, thereby protecting them against persistent threats. Such vertical transfer of immunity, named trans-generational immune priming (TGIP), has been described in both vertebrates and invertebrates. Although increasingly studied during the last decade, the mechanisms underlying TGIP in invertebrates are still elusive, especially those protecting the earliest offspring life stage, i.

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Purpose: This study aimed to describe and analyze psychomotor functions in patients with drug-resistant epilepsy and identify factors associated with psychomotor deficits.

Methods: We performed a prospective case-control study comparing psychomotor skill performances in 40 adult patients and 80 healthy individuals between October 2017 and March 2018. Psychomotor functions were examined in both patients and controls using a full set of specific tests (Rey-Osterrieth complex figure test, Zazzo's cancelation task, Piaget-Head test, and paired images test).

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A new family of chiral symmetric tetraazamacrocycles, coined ISAC for IminoSugar Aza-Crown, incorporating two iminosugars adopting a C conformation is disclosed. Multinuclear NMR experiments on the corresponding Cd complex show that the ISAC is a strong chelator in water and its tetramine cavity adopts a conformation similar to that of the parent Cd-cyclam complex. Similar behavior is observed with Cu in solution, with enhanced stability compared to the Cu-cyclam complex.

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Article Synopsis
  • - The occurrence of extrauterine pregnancies rises to 2-12% after fertilization and embryo transfer, with potential causes including hormonal issues related to assisted reproductive technology (ART).
  • - A case study describes a 32-year-old woman with infertility and endometriosis who experienced bilateral extrauterine pregnancy after ART, which was treated using laparoscopic surgery.
  • - The discussion emphasizes the need for careful monitoring for ectopic pregnancies in ART cases, suggesting serum β-human chorionic gonadotropin testing and transvaginal ultrasounds to ensure proper diagnosis.
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Objectives: This study aims to describe how microarray comparative genomic hybridization (aCGH) has shifted to become a prenatal diagnosis tool at the Lyon university-hospital.

Materials And Methods: This retrospective study included all patients who were referred in the 3 pluridisciplinary centers for prenatal diagnosis of the Lyon university-hospital and who received a prenatal aCGH between June 2013 and June 2015. aCGH was systematically performed in parallel with a karyotype, using the PréCytoNEM array design.

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The failure mechanism of silicon-based electrodes has been studied only in a half-cell configuration so far. Here, a combination of Li, F MAS NMR, XPS, TOF-SIMS, and STEM-EELS, provides an in-depth characterization of the solid electrolyte interphase (SEI) formation on the surface of silicon and its evolution upon aging and cycling with LiNiMnCoO as the positive electrode in a full Li-ion cell configuration. This multiprobe approach indicates that the electrolyte degradation process observed in the case of full Li-ion cells exhibits many similarities to what has been observed in the case of half-cells in previous works, in particular during the early stages of the cycling.

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Silicon is a serious candidate to replace graphite in electrodes because it offers a specific capacity almost 10 times higher than that of carbonaceous materials. However, cycling performances of Si electrodes remain very limited because of the huge volume changes upon alloying and dealloying with lithium. A fine understanding of the lithiation mechanism of silicon electrodes will help to design more robust architectures.

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Objective: Adding GnRH agonists in the luteal phase has recently been said to improve implantation in IVF treatment (increased rates of pregnancy and birth). Adding GnRH agonists could also be beneficial for frozen-thawed embryo transfers. The objective was to compare the administration of Gonadotropin Releasing Hormone (GnRH) agonists during implantation with usual progesterone supplementation in the artificial cycle of frozen-thawed embryo transfers.

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Background: Huge amounts of electronic biomedical documents, such as molecular biology reports or genomic papers are generated daily. Nowadays, these documents are mainly available in the form of unstructured free texts, which require heavy processing for their registration into organized databases. This organization is instrumental for information retrieval, enabling to answer the advanced queries of researchers and practitioners in biology, medicine, and related fields.

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Carbon-covered silicon nanoparticles (Si@C) were synthesized for the first time by a one-step continuous process in a novel two stages laser pyrolysis reactor. Crystallized silicon cores formed in a first stage were covered in the second stage by a continuous shell mainly consisting in low organized sp(2) carbon. At the Si/C interface silicon carbide is absent.

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Purpose: The aim of this study was to determine the presence of the new Swedish Chlamydia trachomatis (C. trachomatis) variant (nvCT) and the distribution of C. trachomatis ompA genotypes in three geographically distant regions of Spain.

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Objectives: Previable premature rupture of the membranes (pPROM), occurring before 24WG, is associated with a 25% neonatal survival rate. This terrible prognosis may lead to elective pregnancy termination on parents' request. Therefore, certain diagnosis is essential but remains difficult in about 10% of patients.

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Introduction: The introduction of pneumococcal conjugate vaccine (PCV-7) has modified the epidemiology of invasive pneumococcal disease (IPD). Our aim was to investigate the epidemiological features of IPD before and after implementing the use of PCV-7.

Methods: All invasive Streptococcus pneumoniae strains isolated in our hospital from 2000 to 2006 were included.

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The synthesis of the pentaammine ruthenium(II) complex of N-isonicotinoyl-nortriptyline (NORPy-Ru(2+)) was performed and its electrochemical properties at a nafion-loaded carbon paste electrode were examined. The anodic oxidation of the positively charged labeled antidepressant proceeded at -0.06 V (versus Ag/AgCl, 0.

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