Publications by authors named "Vidal T"

Purinergic signaling plays a major role in aging and neurodegenerative diseases, which are associated with memory decline. Blackcurrant (BC), an anthocyanin-rich berry, is renowned for its antioxidant and neuroprotective activities. However, evidence on the effects of BC on purinergic signaling is lacking.

View Article and Find Full Text PDF

Coral reefs are suffering globally from the increased frequency and intensification of thermal anomalies, caused by anthropogenic climate change, leading to major mass bleaching events over the past three decades. Environmental factors, including temperature, geomorphology, interspecific competition, protection status and local settings, can modulate the severity of bleaching and the subsequent survival capacity of corals and hydrocorals after mass bleaching events. However, the complexity of environmental factors interacting over fine-scale spatial-temporal scales is still a major gap in understanding coral bleaching events of South Atlantic reefs.

View Article and Find Full Text PDF

Periphyton is frequently used in the evaluation of the ecological status of aquatic ecosystems using diatoms as a proxy. However, periphyton has a particularity, the production of extracellular polymeric substances (EPS), which might play a protective role against exposure to harmful environmental contaminants. Effluents originating in wastewater treatment plants (WWTPs) constitute some of the most complex mixtures of contaminants, to which aquatic ecosystems are frequently exposed, often containing tens to hundreds of different chemicals.

View Article and Find Full Text PDF

Evaluating citrus rootstocks is of paramount importance in determining their suitability for a certain region and promoting resilience in orchards by increasing the genetic pool, thereby potentially contributing to a more strategic establishment of new plantings. This long-term field study (2000-2013) aimed to evaluate different rootstocks for 'Swatow' mandarin grown at two locations (Paranavaí and Londrina) in the Brazilian subtropics. Nine rootstocks were evaluated, including 'Rangpur' lime, 'Swingle' citrumelo, 'Volkamer' lemon, 'Caipira DAC' sweet orange, 'Cleopatra' and 'Sunki' mandarins, 'Trifoliate' orange, 'Carrizo', and 'Fepagro C-13' citranges.

View Article and Find Full Text PDF
Article Synopsis
  • * The facility was adapted to assess the impact of iron mining waste from a significant dam failure that contaminated marine ecosystems with metals such as iron, arsenic, mercury, and manganese.
  • * Results demonstrated that the marine mesocosm system is a versatile and trustworthy method for studying the specific biological effects of dissolved iron on various reef organisms.
View Article and Find Full Text PDF

Introduction: Chest-physiotherapy is a key element in treatment of cystic fibrosis and patient adherence is a major issue in global cystic fibrosis care. This study aims to assess adherence to chest physiotherapy in adults with cystic fibrosis who not treated with tritherapy and to analyze the impact of certain factors on adherence.

Methods: Thus is a cross-sectional study, conducted using a questionnaire and a physiotherapy evaluation.

View Article and Find Full Text PDF

Wastewater treatment plant (WWTP) effluents can be sources of environmental contamination. In this study, we aimed to understand whether effluents of three different WWTPs may have ecological effects in riverine recipient ecosystems. To achieve this, we assessed benthic phytobenthos and macroinvertebrate communities at three different locations relative to the effluent discharge: immediately upstream, immediately downstream and 500-m downstream the effluent discharge.

View Article and Find Full Text PDF

Phenology is a key adaptive trait of organisms, shaping biotic interactions in response to the environment. It has emerged as a critical topic with implications for societal and economic concerns due to the effects of climate change on species' phenological patterns. Fungi play essential roles in ecosystems, and plant pathogenic fungi have significant impacts on global food security.

View Article and Find Full Text PDF

Deploying disease-resistant cultivars is one of the most effective control strategies to manage crop diseases such as wheat leaf rust, caused by Puccinia triticina. After harvest, this biotrophic fungal pathogen can survive on wheat volunteers present at landscape scale and constitute a local source of primary inoculum for the next cropping season. In this study, we characterised the diversity of P.

View Article and Find Full Text PDF

Dentoalveolar trauma is an important etiologic factor for tooth loss. A multidisciplinary approach to treatment is necessary because the functional, esthetic, and psychosocial problems that result from dentoalveolar trauma can significantly influence the patient's quality of life. The objective of this article is to describe the multidisciplinary treatment of a 39-year-old man who experienced dentoalveolar trauma in a bicycle accident.

View Article and Find Full Text PDF

The significant number of deaths and infection caused by the new coronavirus SARS-CoV-2 has created an urgent demand for effective and readily available drugs for the treatment of COVID-19. However, the requirements for biosafety level 3 (NB-3) laboratories for experiments with the virus has made it very challenging for such research to meet this demand. It is known that angiotensin-converting enzyme 2 (ACE2), located on the surface of host cells, serves as the viral receptor for the spike (S) protein of SARS-CoV-2.

View Article and Find Full Text PDF

Background: Longitudinal measures of structural brain changes using MRI in relation to clinical features and progression patterns in PD have been assessed in previous studies, but few were conducted in well-defined and large cohorts, including prospective clinical assessments of both motor and non-motor symptoms.

Objective: We aimed to identify brain volumetric changes characterizing PD patients, and determine whether regional brain volumetric characteristics at baseline can predict motor, psycho-behavioral and cognitive evolution at one year in a prospective cohort of PD patients.

Methods: In this multicentric 1 year longitudinal study, PD patients and healthy controls from the MPI-R2* cohort were assessed for demographical, clinical and brain volumetric characteristics.

View Article and Find Full Text PDF

The assessment of waste ecotoxicity (hazardous property HP14 in the European Union) is fundamental for proper waste classification and safe application/disposal. Biotests are relevant for evaluating waste complex matrices, but their efficiency is crucial to encourage their adoption at the industrial level. This work aims at evaluating possibilities of improving the efficiency of a biotest battery previously suggested in the literature, regarding test selection, duration, and/or laboratory resources optimization.

View Article and Find Full Text PDF

Background: Impulse control disorders (ICDs) are frequently encountered in Parkinson's disease (PD).

Objectives: We aimed to assess whether clonidine, an α2-adrenergic receptor agonist, would improve ICDs.

Methods: We conducted a multicentre trial in five movement disorder departments.

View Article and Find Full Text PDF

REM sleep behaviour disorder (RBD) is common in narcolepsy type 1 (NT1). Abnormalities in the reward system have been observed in NT1, possibly related to impaired orexin projections towards the mesolimbic reward system, but also in RBD when associated with Parkinson's disease. Our study aimed to explore the psychobehavioural profile of NT1 patients with and without RBD compared with healthy controls (HC).

View Article and Find Full Text PDF

ACT (Activated Clotting Time) is a point of care test (POCT) on whole blood, used to monitor the heparinization of patients in the operating room in cardiac surgery (ExtraCorporeal Circulation ECC) and in interventional cardiology (TAVI, AF ablation). The ACT is concerned both by the ISO 22 870 standard and French regulations regarding POCT. We performed an important work at the Bordeaux CHU on its accreditation, by rationalizing and making the park uniform (11 HemochronTM Signature Elite), standardizing the training and the habilitation of operators in medical units, introducing periodic quality controls, centralizing in the laboratory the management of the devices and reagents and by connecting it to the laboratory's computer system (Middleware, SIL et expert softwares).

View Article and Find Full Text PDF

This study aimed to correlate REM sleep without atonia (RSWA) and neuropsychological data in patients with idiopathic/isolated REM sleep behaviour disorder (iRBD) and those with RBD associated with Parkinson's disease (PDRBD), in order to assess whether higher degrees of RSWA are related to poorer cognitive performance. A total of 142 subjects were enrolled: 48 with iRBD, 55 with PDRBD, and 39 PD without RBD (PDnoRBD). All participants underwent video-polysomnographic recording, clinical and neuropsychological assessment.

View Article and Find Full Text PDF

The ratio of testosterone (T) to epitestosterone (E) determined in urine samples is the main biomarker used to prove T and precursors abused by athletes. Analytically, the correction of the ratio is required by the World Anti-Doping Agency. This work describes a series of experiments aimed to study when it is appropriate to correct the T/E ratio value, using different mass spectrometric techniques since only reports on GC-MS exist.

View Article and Find Full Text PDF

Several postmortem studies have shown iron accumulation in the substantia nigra of Parkinson's disease patients. Iron concentration can be estimated via MRI-R mapping. To assess the changes in R occurring in Parkinson's disease patients compared to controls, a multicentre transversal study was carried out on a large cohort of Parkinson's disease patients (n = 163) with matched controls (n = 82).

View Article and Find Full Text PDF

Little is known about the impact of host immunity on sexual reproduction in fungal pathogens. In particular, it is unclear whether crossing requires both sexual partners to infect living plant tissues. We addressed this issue in a three-year experiment investigating different scenarios of Zymoseptoria tritici crosses according to the virulence ('vir') or avirulence ('avr') of the parents against a qualitative resistance gene.

View Article and Find Full Text PDF

Background: Some studies have suggested that mitochondrial dysfunction and a superoxide imbalance could increase susceptibility to chronic stressful events, contributing to the establishment of chronic inflammation and the development of mood disorders. The mitochondrial superoxide imbalance induced by some molecules, such as rotenone, could be evolutionarily conserved, causing behavioral, immune, and neurological alterations in animals with a primitive central nervous system.

Objective: Behavioral, immune, and histological markers were analyzed in Eisenia fetida earthworms chronically exposed to rotenone for 14 days.

View Article and Find Full Text PDF

Type 2 diabetes mellitus (T2DM) affects a large number of the American population. When compared to their representation in the general American population, a disproportionate number of Latinx individuals are affected. Within the Latinx American population, T2DM prevalence rates vary among individuals based on their country of origin.

View Article and Find Full Text PDF

Background: REM sleep behavior disorder (RBD) is associated with an increased risk to develop Impulse control disorders (ICDs) in Parkinson's disease (PD), however the mechanisms underlying this putative association are still poorly understood. Decision-making impairment, one major neuro-psychological dimension that may lead to ICDs, has been reported in idiopathic RBD, but has never been assessed in RBD associated with PD.

Objective: We aimed to assess decision-making abilities under ambiguous situations associated with the presence of RBD in PD patients.

View Article and Find Full Text PDF

Introduction: Medical education is oftentimes stressful and has been documented to compromise student well-being, hinder performance, and contribute to burnout. Many medical schools aim to foster students' sense of well-being. This can be accomplished by peer-assisted learning (PAL), which has the potential to improve student wellness and performance in medical school.

View Article and Find Full Text PDF

Monitoring spatiotemporal changes in varietal resistance and understanding its drivers seem essential to managing plant diseases but require having access to the genetic basis of disease resistance and to its deployment. In this study, we focused on yellow rust ( f. sp.

View Article and Find Full Text PDF