Publications by authors named "Lalanne C"

Most studies on anesthesia focus on the nervous system of mammals due to their interest in medicine. The fact that any life form can be anaesthetised is often overlooked although anesthesia targets ion channel activities that exist in all living beings. This study examines the impact of lidocaine on rice ().

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  • Detecting autoantibodies is crucial for diagnosing autoimmune hepatitis (AIH), especially in children where their specificity can be lower; recent research points to polyreactive IgG (pIgG) as a promising marker.
  • A study, using samples from multiple European centers, found that pIgG had enhanced specificity and accuracy for diagnosing pediatric AIH compared to traditional antibodies like ANA and anti-SMA.
  • pIgG distinguished AIH from other liver diseases with an AUC of 0.900, showing it was positive in a significant portion of pediatric patients and independent of their treatment response.
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In their natural environment, fungi are subjected to a wide variety of environmental stresses which they must cope with by constantly adapting the architecture of their growing network. In this work, our objective was to finely characterize the thallus development of the filamentous fungus Podospora anserina subjected to different constraints that are simple to implement in vitro and that can be considered as relevant environmental stresses, such as a nutrient-poor environment or non-optimal temperatures. At the Petri dish scale, the observations showed that the fungal thallus is differentially affected (thallus diameter, mycelium aspect) according to the stresses but these observations remain qualitative.

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Background And Aims: During recent years, there have been major insight into the pathogenesis, diagnosis and treatment of autoimmune hepatitis (AIH). We aim to evaluate modifications of the clinical-epidemiological phenotype of AIH patients from 1980 to our days.

Methods: Single-centre, tertiary care retrospective study on 507 consecutive Italian patients with AIH.

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Objective: To evaluate the feasibility and limitations associated with a minimally invasive ultrasound-assisted cutting thread technique for tenotomy of the deep digital flexor tendon (DDFT) in horses.

Study Design: Ex vivo study.

Sample Population: Twenty cadaveric forelimbs.

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The order Sordariales is taxonomically diverse, and harbours many species with different lifestyles and large economic importance. Despite its importance, a robust genome-scale phylogeny, and associated comparative genomic analysis of the order is lacking. In this study, we examined whole-genome data from 99 Sordariales, including 52 newly sequenced genomes, and seven outgroup taxa.

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Under ideal conditions, the growth of the mycelial network of a filamentous fungus is monotonous, showing an ever increasing complexity with time. The components of the network growth are very simple and based on two mechanisms: the elongation of each hypha, and their multiplication by successive branching. These two mechanisms are sufficient to produce a complex network, and could be localized only at the tips of hyphae.

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  • Global warming is affecting species adaptation, notably tree populations, by altering their environmental conditions, such as increased winter temperatures and late spring frosts.
  • This study investigated the genetic responses of sessile oak populations in the Pyrenees Mountains, showing that high- and low-elevation trees have developed different strategies to cope with these climate changes.
  • Findings revealed specific genes linked to dormancy and growth responses to elevation, indicating that these oak populations have evolved distinct mechanisms to optimize their survival and reproduction in varying temperatures.
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Abstarct: PURPOSE: Anorexia Nervosa (AN) is a severe chronic disorder and parents' experience of caregiving is usually marked by emotional distress and burden. Severe chronic psychiatric disorders are known to be linked with the concept of grief. Grief has not been investigated in AN.

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In Podospora anserina as in many other , ascospore germination is a regulated process that requires the breaking of dormancy. Despite its importance in survival and dispersal, ascospore germination in filamentous fungi has been poorly investigated, and little is known about its regulation and genetic control. We have designed a positive genetic screen that led to the isolation of mutants showing uncontrolled germination, the () mutants.

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  • Recombination is often limited at sex-determining loci in various organisms, including plants and fungi, with a focus on fungal ascomycetes.
  • Research on Schizothecium tetrasporum, a fungus in the Sordariales order, shows it produces mainly self-fertile spores due to significant meiotic segregation at its mating-type locus.
  • The study indicates a similar recombination suppression pattern as seen in other species, with distinct evolutionary strata revealing gene losses and disruptions, suggesting convergent evolution of self-fertile spores in ascomycete fungi.
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  • Whole genome studies of ancient DNA from crops help us understand the evolution and adaptation of modern plants, but similar studies for trees are lacking.
  • This research presents the first ancient tree genomes from white oaks found in Germany and France, revealing one hybrid species and two pure species of Q. robur.
  • While global genomic diversity in these trees has remained stable over time, some periods showed decreased diversity, and the study also marks the first time scientists have tracked the timing of leaf unfolding in ancient trees.
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  • - A 72-year-old man with a history of hepatitis C and hepatocellular carcinoma (HCC) experienced fatigue and a skin rash, leading to a diagnosis of dermatomyositis (DM) associated with anti-TIF1-γ antibodies, indicative of HCC recurrence.
  • - Despite treatment with corticosteroids, azathioprine, and intravenous immunoglobulin, he showed only a partial response, leaving him without feasible options for HCC treatment due to poor health, resulting in best supportive care being provided.
  • - The case highlights the link between anti-TIF1-γ antibodies and paraneoplastic DM in HCC, along with the tumor-related aspects of TIF1-γ, which may serve as
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Drought and waterlogging impede tree growth and may even lead to tree death. Oaks, an emblematic group of tree species, have evolved a range of adaptations to cope with these constraints. The two most widely distributed European species, pedunculate (PO; Quercus robur L.

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Based upon apical growth and hyphal branching, the two main processes that drive the growth pattern of a fungal network, we propose here a two-dimensions simulation based on a binary-tree modelling allowing us to extract the main characteristics of a generic thallus growth. In particular, we showed that, in a homogeneous environment, the fungal growth can be optimized for exploration and exploitation of its surroundings with a specific angular distribution of apical branching. Two complementary methods of extracting angle values have been used to confront the result of the simulation with experimental data obtained from the thallus growth of the saprophytic filamentous fungus Podospora anserina.

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The European Beech is the dominant climax tree in most regions of Central Europe and valued for its ecological versatility and hardwood timber. Even though a draft genome has been published recently, higher resolution is required for studying aspects of genome architecture and recombination. Here, we present a chromosome-level assembly of the more than 300 year-old reference individual, Bhaga, from the Kellerwald-Edersee National Park (Germany).

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  • The study investigates how oak trees have evolved genetically in response to climate warming since the Little Ice Age, using genomic data from different forest locations in France.
  • Researchers found that changes in genetic traits coincided with extreme weather events over the last 300 years, suggesting adaptation linked to environmental stressors like drought and frost.
  • The findings highlight evidence for natural selection shaping the genetic responses of these long-lived trees, emphasizing their adaptation to recent climatic shifts while acknowledging other factors might also play a role.
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Erosive destruction of joint structures is a critical event in the progression of rheumatoid arthritis (RA), in which fibroblast-like synoviocytes (FLS) are the primary effectors. We previously reported that the ability of RA FLS to degrade extracellular matrix (ECM) components depends on the formation of actin-rich membrane protrusions, called invadosomes, through processes that remain elusive. 14-3-3η belongs to a family of scaffolding proteins involved in a wide range of cellular functions, and its expression is closely related to joint damage and disease activity in RA patients.

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Introduction: The Latarjet procedure provides satisfactory functional results, with low rates of recurrence. It is, however, sometimes claimed to induce osteoarthritis due to the positioning of the bone-block and hardware. The aims of the present study were to assess the long-term prevalence of osteoarthritis following the procedure, to determine risk factors and assess clinical impact.

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Background And Aims: Detection of autoantibodies is a mainstay of diagnosing autoimmune hepatitis (AIH). However, conventional autoantibodies for the workup of AIH lack either sensitivity or specificity, leading to substantial diagnostic uncertainty. We aimed to identify more accurate serological markers of AIH with a protein macroarray.

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The relationship between anxiety or depressive comorbidities, their chronology of onset, and the severity of anorexia nervosa (AN) is not well-studied. We hypothesize that the existence of a comorbidity, particularly before the onset of AN, is associated with greater severity of AN. One hundred seventy-seven subjects were assessed.

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More than 90% of cases of hepatocellular carcinoma (HCC) occurs in patients with cirrhosis, of which hepatitis B virus and hepatitis C virus are the leading causes, while the tumor less frequently arises in autoimmune liver diseases. Advances in understanding tumor immunity have led to a major shift in the treatment of HCC, with the emergence of immunotherapy where therapeutic agents are used to target immune cells rather than cancer cells. Regulatory T cells (Tregs) are the most abundant suppressive cells in the tumor microenvironment and their presence has been correlated with tumor progression, invasiveness, as well as metastasis.

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Background: Progress in the field of evolutionary forest ecology has been hampered by the huge challenge of phenotyping trees across their ranges in their natural environments, and the limitation in high-resolution environmental information.

Findings: The GenTree Platform contains phenotypic and environmental data from 4,959 trees from 12 ecologically and economically important European forest tree species: Abies alba Mill. (silver fir), Betula pendula Roth.

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