Publications by authors named "Bertrand C"

Anxiety disorders are the most prevalent mental health conditions worldwide. Unfortunately, the understanding of the precise neurobiological mechanisms that underlie these disorders remains limited. Current diagnostic classifications, based on observable symptoms rather than underlying pathophysiology, do not capture the heterogeneity within and across anxiety disorders.

View Article and Find Full Text PDF
Article Synopsis
  • - The study details the whole-genome sequences of seven different marine bacteria found in Portugal that can help improve the growth of a specific type of diatom.
  • - These bacteria were chosen because of their unique characteristics and potential benefits to the diatom, which is a model organism in research.
  • - The genome sequences aim to enhance our understanding of the genetic and molecular processes that govern interactions between these marine bacteria and diatoms.
View Article and Find Full Text PDF
Article Synopsis
  • The study examined how heat stress during the gestation of dairy cows affects the performance of their daughters during the first lactation, focusing on French Holstein and Montbéliarde breeds.
  • Researchers analyzed 14 different traits, including milk production, fertility, and health characteristics, and categorized the Temperature-Humidity Index (THI) experienced during each month of pregnancy into seven classes.
  • Findings indicated that heat stress had minimal effects on most traits, with slightly negative impacts on milk production yields early in gestation and slightly positive effects later, suggesting that under current conditions in France, in utero heat stress may not significantly affect the daughters' future performance.
View Article and Find Full Text PDF

While pesticide use is subject to strict regulatory oversight worldwide, it remains a main concern for environmental protection, including biodiversity conservation. This is partly due to the current regulatory approach that relies on separate assessments for each single pesticide, crop use, and non-target organism group at local scales. Such assessments tend to overlook the combined effects of overall pesticide usage at larger spatial scales.

View Article and Find Full Text PDF

Auxins, mainly in the form of indole-3-acetic acid (IAA), regulate several aspects of plant and algal growth and development. Consequently, plant and algae-associated bacteria developed the ability to modulate IAA levels, including IAA catabolism. In this work, we present and analyse the genome sequence of the IAA-degrading and marine algae-associated bacterium, sp.

View Article and Find Full Text PDF

Importance: Mental illnesses are a leading cause of disability globally, and functional disability is often in part caused by cognitive impairments across psychiatric disorders. However, studies have consistently reported seemingly opposite findings regarding the association between cognition and psychiatric symptoms.

Objective: To determine if the association between general cognition and mental health symptoms diverges at different symptom severities in children.

View Article and Find Full Text PDF

Objectives: Cannabis is used by one-third of people living with chronic pain to alleviate their symptoms despite warnings from several organizations regarding its efficacy and safety. We currently know little about self-medication practices (use of cannabis for therapeutic purposes without guidance), mainly since the legalization of recreational cannabis in countries such as Canada has expanded the scope of this phenomenon. This study aimed to describe legal cannabis self-medication for pain relief in people living with chronic pain and to explore perceptions of the effectiveness and safety of cannabis.

View Article and Find Full Text PDF
Article Synopsis
  • Delays in breast cancer detection and treatment can lead to higher mortality rates, making organized breast cancer screenings (OBCS) crucial, but global participation has been low, especially during the COVID-19 pandemic.
  • A study analyzed 6,282 women in France invited to OBCS in 2020, categorizing their responses based on when they underwent mammography after their invitation: promptly, late, or not at all.
  • The results showed that younger women and those with less frequent gynecological and colorectal cancer screenings were less likely to attend, while women with higher education and those from disadvantaged areas tended to attend late.
View Article and Find Full Text PDF
Article Synopsis
  • Mayotte, an Indian Ocean island, has a rich diversity of languages and cultures, but its traditional knowledge, particularly in cosmetology, is threatened by rapid urbanization and a lack of research.
  • A study was conducted between 2021 and 2022, interviewing 35 local experts to document the cosmetic plants used by the Mahoran community, resulting in 470 cosmetic formulations and identification of 83 plant species.
  • The research highlights the most common cosmetic categories and plant species used, aiming to preserve traditional knowledge while also suggesting further studies to explore the potential of endemic plants in the cosmetic industry for economic development.
View Article and Find Full Text PDF

Plant protection products (PPP) are extensively used to protect plants against harmful organisms, but they also have unintended effects on non-target organisms, especially terrestrial invertebrates. The impact of PPP on ecosystem functions provided by these non-target invertebrates remains, however, unclear. The objectives of this article were to review PPP impacts on the ecosystem functions provided by pollinators, predators and parasitoids, and soil organisms, and to identify the factors that aggravate or mitigate PPP effects.

View Article and Find Full Text PDF

The study presents the whole genome sequence of the carotenoid-producing sp. NFXS7, isolated from a marine saltern in Setúbal, Portugal. The carotenoid-producing strain NFXS7 contains homologs of the genes involved in astaxanthin biosynthesis, making it a promising candidate for biotechnological applications.

View Article and Find Full Text PDF

Background And Aims: Surgical resection remains the gold standard for liver tumor treatment, yet the emergence of postoperative liver failure, known as the small-for-size syndrome (SFSS), poses a significant challenge. The activation of hypoxia sensors in an SFSS liver remnant initiated early angiogenesis, improving the vascular architecture, safeguarding against liver failure, and reducing mortality. The study aimed to elucidate vascular remodeling mechanisms in SFSS and their impact on hepatocyte function and subsequent liver failure.

View Article and Find Full Text PDF

Biocontrol solutions (macroorganisms, microorganisms, natural substances, semiochemicals) are presented as potential alternatives to conventional plant protection products (PPPs) because they are supposed to have lower impacts on ecosystems and human health. However, to ensure the sustainability of biocontrol solutions, it is necessary to document the unintended effects of their use. Thus, the objectives of this work were to review (1) the available biocontrol solutions and their regulation, (2) the contamination of the environment (soil, water, air) by biocontrol solutions, (3) the fate of biocontrol solutions in the environment, (4) their ecotoxicological impacts on biodiversity, and (5) the impacts of biocontrol solutions compared to those of conventional PPPs.

View Article and Find Full Text PDF
Article Synopsis
  • This study examines the impact of increasing temperatures on dairy cattle fertility and production, focusing on Holstein and Montbeliarde breeds.
  • Genetic correlations showed that while fertility is generally stable across different temperature-humidity conditions, the best reproducers in Holsteins are more negatively impacted by heat stress than in Montbeliarde, highlighting breed differences.
  • Overall, rising temperatures are not expected to worsen the trade-off between production and fertility, but the top-producing animals today may face greater challenges due to heat stress in the future.
View Article and Find Full Text PDF

The linear chromosome of Streptomyces exhibits a highly compartmentalized structure with a conserved central region flanked by variable arms. As double strand break (DSB) repair mechanisms play a crucial role in shaping the genome plasticity of Streptomyces, we investigated the role of EndoMS/NucS, a recently characterized endonuclease involved in a non-canonical mismatch repair (MMR) mechanism in archaea and actinobacteria, that singularly corrects mismatches by creating a DSB. We showed that Streptomyces mutants lacking NucS display a marked colonial phenotype and a drastic increase in spontaneous mutation rate.

View Article and Find Full Text PDF

Metabolomics is a powerful approach that allows for high throughput analysis and the acquisition of large biochemical data. Nonetheless, it still faces several challenging requirements, such as the development of optimal extraction and analytical methods able to respond to its high qualitative and quantitative requisites. Hence, the objective of the present article is to suggest a LC-HRMS-based untargeted profiling approach aiming to provide performant tools that help assess the performance and the quality of extraction methods.

View Article and Find Full Text PDF

Natural pest and weed regulation are essential for agricultural production, but the spatial distribution of natural enemies within crop fields and its drivers are mostly unknown. Using 28 datasets comprising 1204 study sites across eight Western and Central European countries, we performed a quantitative synthesis of carabid richness, activity densities and functional traits in relation to field edges (i.e.

View Article and Find Full Text PDF

For the past decade, three-dimensional (3D) culture models have been emerging as powerful tools in translational research to overcome the limitations of two-dimensional cell culture models. Thanks to their ability to recapitulate the phenotypic and molecular heterogeneity found in numerous organs, organoids have been used to model a broad range of tumors, such as colorectal cancer. Several approaches to generate organoids exist, with protocols using either pluripotent stem cells, embryonic stem cells, or organ-restricted adult stem cells found in primary tissues, such as surgical resections as starting material.

View Article and Find Full Text PDF

Neonicotinoids are the most widely used class of insecticides in the world, but they have raised numerous concerns regarding their effects on biodiversity. Thus, the objective of this work was to do a critical review of the contamination of the environment (soil, water, air, biota) by neonicotinoids (acetamiprid, clothianidin, imidacloprid, thiacloprid, thiamethoxam) and of their impacts on terrestrial and aquatic biodiversity. Neonicotinoids are very frequently detected in soils and in freshwater, and they are also found in the air.

View Article and Find Full Text PDF

Ketamine commonly and rapidly induces dissociative and other altered states of consciousness (ASCs) in humans. However, the neural mechanisms that contribute to these experiences remain unknown. We used functional neuroimaging to engage key regions of the brain's affective circuits during acute ketamine-induced ASCs within a randomized, multi-modal, placebo-controlled design examining placebo, 0.

View Article and Find Full Text PDF

Treatment of chronic pain should be multimodal and include pharmacological, physical, and psychological treatments. However, because various barriers to physical and psychological treatments (PPTs) exist, a better understanding of biopsychosocial factors leading to their use is relevant. This study aimed to explore the association between gender identity, gender-stereotyped personality traits, and the use of PPTs in chronic pain management.

View Article and Find Full Text PDF

Low back pain (LBP), a globally widespread and persistent musculoskeletal disorder, benefits from exercise therapy. However, it remains unclear which type leads to greater changes in paraspinal muscle health. This study aimed to (1) compare the effects of a combined motor control and isolated lumbar extension exercise (MC+ILEX) versus a general exercise (GE) intervention on paraspinal muscle morphology, composition, and function, and (2) examine whether alterations in paraspinal muscle health were correlated with improvements in pain, function, and quality of life.

View Article and Find Full Text PDF