Publications by authors named "Guerin J"

Since 2016, epizootics of highly pathogenic avian influenza (HPAI) virus have threatened the poultry sector in Europe. Because conventional prevention and control measures alone were insufficient in some contexts, the European Commission authorized poultry vaccination in 2023. Subsequently, France launched a nationwide duck vaccination campaign combined with a comprehensive surveillance plan.

View Article and Find Full Text PDF

Torus palatinus is an osseus exostosis found in the midline of the hard palate. It is a relatively common condition and is benign in nearly all cases. However, complications such as airway obstruction, sleep apnea, and swallowing difficulties do exist.

View Article and Find Full Text PDF

Objective: Dermoid cyst (DC) is a congenital cyst with the potential to have intracranial extension (ICE). This study aims to evaluate the imaging yield and surgical outcomes of nasal, medial brow, forehead, and scalp DCs.

Design: Retrospective review of craniofacial DCs treated at our institution between 1992 and 2024.

View Article and Find Full Text PDF
Article Synopsis
  • The rise of clade 2.3.4.4b H5N1 avian influenza in 2021 has resulted in major poultry epidemics and increased infections in wild birds and mammals, necessitating new management strategies.
  • Poultry vaccination is becoming essential for controlling HPAI, as highlighted by France's vaccination program for domestic ducks, but broader changes are also needed to address logistical and trade issues.
  • To enhance regional biosecurity, it is important to focus on the spatial distribution of poultry farms and reduce farm concentration to prevent virus spread, which will ultimately reshape poultry production and trade practices.
View Article and Find Full Text PDF

Two recombinases, RAD51 and DMC1, catalyze meiotic break repair to ensure crossovers (COs) between homologous chromosomes (interhomolog) rather than between sisters (intersister). FIDGETIN-LIKE-1 (FIGL1) downregulates both recombinases. However, the understanding of how FIGL1 functions in meiotic repair remains limited.

View Article and Find Full Text PDF
Article Synopsis
  • Spontaneous intracranial hypotension is primarily caused by spinal CSF leaks, mostly reported in adults, but this report focuses on its occurrence in children.
  • Recent advances in specialized myelography techniques have improved the localization of these leaks, yet there's been limited research in the pediatric population due to the rarity of the condition and concerns about invasive procedures.
  • This study reviews pediatric cases with spontaneously occurring spinal CSF leaks, identifying similar leak types found in adults, and demonstrates that advanced imaging techniques can effectively pinpoint and aid in the treatment of these leaks.
View Article and Find Full Text PDF

Biosecurity is the cornerstone of prevention strategies to limit infectious pathogen spread between poultry farms. However, poor compliance of biosecurity measures is often observed when entering or exiting barns. The lack of knowledge, understanding, risk perception or technical skill are often described for anteroom-related biosecurity errors (i.

View Article and Find Full Text PDF
Article Synopsis
  • Dermatofibrosarcoma protuberans (DFSP) is a locally aggressive skin cancer with a high recurrence rate, particularly challenging when it occurs on the scalp due to its potential to invade deeper structures like bone and brain.
  • A study of 33 patients treated for DFSP at a tertiary center analyzed demographics, imaging results, and surgical outcomes to evaluate the effectiveness of preoperative imaging (CT and MRI) in guiding treatment.
  • The findings indicated that while imaging has low sensitivity and negative predictive value for identifying periosteal invasion, it shows high specificity and positive predictive value, making it valuable for surgical planning and reconstruction.
View Article and Find Full Text PDF

Background:  Multicenter precision oncology real-world evidence requires a substantial long-term investment by hospitals to prepare their data and align on common Clinical Research processes and medical definitions. Our team has developed a self-assessment framework to support hospitals and hospital networks to measure their digital maturity and better plan and coordinate those investments. From that framework, we developed PRISM for Cancer Outcomes: PR: agmatic I: nstitutional S: urvey and benchM: arking.

View Article and Find Full Text PDF

High pathogenicity avian influenza viruses (HPAIVs) have caused major epizootics in recent years, with devastating consequences for poultry and wildlife worldwide. Domestic and wild ducks can be highly susceptible to HPAIVs, and infection leads to efficient viral replication and massive shedding (i.e.

View Article and Find Full Text PDF

High and low pathogenicity avian influenza viruses (HPAIV, LPAIV) are the primary causes of poultry diseases worldwide. HPAIV and LPAIV constitute a major threat to the global poultry industry. Therefore, early detection and well-adapted surveillance strategies are of the utmost importance to control the spread of these viruses.

View Article and Find Full Text PDF

Meiotic rapid prophase chromosome movements (RPMs) require connections between the chromosomes and the cytoskeleton, involving SUN (Sad1/UNC-84)-domain-containing proteins at the inner nuclear envelope (NE). RPMs remain significantly understudied in plants, with respect to their importance in the regulation of meiosis. Here, we demonstrate that Arabidopsis thaliana meiotic centromeres undergo rapid (up to 500 nm/s) and uncoordinated movements during the zygotene and pachytene stages.

View Article and Find Full Text PDF

Fronto-facial monobloc advancement with internal distraction (FFMBA) is a central procedure in the management of faciocraniosynostoses. In techniques with internal distraction, two sets of devices are generally positioned: bilateral fronto-orbital and temporo-zygomatic distractors, using a temporal tongue and groove osteotomy design. It is believed that distractors must be positioned as parallel as possible in the horizontal and sagittal planes to avoid mechanical conflicts between the sliding bone fragments of the tongue and groove during distraction, and thus optimize the advancement amplitude.

View Article and Find Full Text PDF

While mammals can be infected by influenza A virus either sporadically or with well adapted lineages, aquatic birds are the natural reservoir of the pathogen. So far most of the knowledge on influenza virus dynamics was however gained on mammalian models. In this study, we infected turkeys using a low pathogenic avian influenza virus and determined the infection dynamics with a target-cell limited model.

View Article and Find Full Text PDF

Working memory (WM) has been consistently linked to reading. However, the mechanism(s) linking WM to reading remain unclear. WM may indirectly exert an effect onto reading through mediators such as phonemic awareness (PA) and/or rapid automatized naming (RAN).

View Article and Find Full Text PDF

Purpose: To document the association of -related disorder (EIEE-50) with cortical visual impairment.

Observations: An 8-month-old Caucasian boy with whole genome sequencing confirming 2 variants in the gene , who presented with severe seizures, microcephaly, hyperreflexia, hypotonia, anemia, and severe cortical visual impairment. Magnetic resonance imaging (MRI) of the brain noted thickened cortical gray matter along the right calcarine fissure as well as changes suggesting malformation of cortical development.

View Article and Find Full Text PDF
Article Synopsis
  • A study examined the stigma surrounding mpox in men who have sex with men and those living with HIV, finding concerns about negative impacts on the LGBTQ community.
  • Most participants reported significant pain, particularly in their limbs and perianal area, with opioids providing the best pain relief.
  • While patients were generally satisfied with care at specific clinics, they experienced negative interactions at other healthcare facilities.
View Article and Find Full Text PDF

Background: Real-world data (RWD) related to the health status and care of cancer patients reflect the ongoing medical practice, and their analysis yields essential real-world evidence. Advanced information technologies are vital for their collection, qualification, and reuse in research projects.

Methods: UNICANCER, the French federation of comprehensive cancer centres, has innovated a unique research network: Consore.

View Article and Find Full Text PDF

Meiosis is a specialized eukaryotic division that produces genetically diverse gametes for sexual reproduction. During meiosis, homologous chromosomes pair and undergo reciprocal exchanges, called crossovers, which recombine genetic variation. Meiotic crossovers are stringently controlled with at least one obligate exchange forming per chromosome pair, while closely spaced crossovers are inhibited by interference.

View Article and Find Full Text PDF

At the end of 2020, an outbreak of HPAI H5N8 was registered in captive African houbara bustards (Chlamydotis undulata) in the United Arab Emirates. In order to better understand the pathobiology of this viral infection in bustards, a comprehensive pathological characterization was performed. A total of six birds were selected for necropsy, histopathology, immunohistochemistry, RNAscope in situ hybridization and RT-qPCR and nanopore sequencing on formalin-fixed and paraffin-embedded (FFPE) tissue blocks.

View Article and Find Full Text PDF
Article Synopsis
  • During the avian influenza outbreaks in France (2020/21 and 2021/22), the virus spread rapidly, leading to the slaughter of millions of birds as the only control method.
  • Researchers developed a MinION sequencing workflow to quickly analyze the genetic makeup of avian influenza strains, focusing on the hemagglutinin gene and the entire virus genome.
  • By sequencing 30 field samples and conducting phylogenetic analysis, they discovered connections between different outbreaks, indicating this method's potential for real-time monitoring and management of future viral outbreaks.
View Article and Find Full Text PDF

Poultry vaccines are very important tools for disease prevention and may be administered collectively by drinking water or spray or individually by injection or oculonasal drop, whereas inactivated vaccines are administered by injection only. Poultry vaccines are increasingly delivered at the hatchery to day-old chicks or , because mass vaccination is much more efficiently implemented and controlled at the hatchery than on the farm. Mass administration on the farm by drinking water or spray requires strict compliance with guidelines regarding water quality, preparation of vaccines, and application, so as to cover the whole flock.

View Article and Find Full Text PDF
Article Synopsis
  • The European Union is helping create a platform called UNderstanding CANcer (UNCAN.eu) that connects cancer research across different countries in Europe.
  • Experts gathered in Heidelberg to talk about what projects are already happening and how to make the platform better in the future.
  • The goal is to work together so scientists can share important information and improve cancer research for everyone.
View Article and Find Full Text PDF