Adoption, Outcomes, and Healthcare Professionals' Perceptions of Minimally Invasive Surgical Techniques in Neonatology and Pediatric Surgery: A Clinical Study.

Background: Minimally invasive surgical techniques have revolutionized neonatology and pediatric surgery by offering less traumatic procedures with reduced recovery times and improved outcomes. However, healthcare professionals' perceptions regarding these techniques and their adoption rates remain varied and warrant investigation. Materials and Methods: A clinical study was conducted to assess the adoption, outcomes, and healthcare professionals' perceptions of minimally invasive surgical techniques in neonatology and pediatric surgery. Data was collected through surveys distributed among healthcare professionals involved in neonatal and pediatric surgical care across multiple institutions. Adoption rates were quantified, outcomes were assessed through a comparative analysis of surgical success and complication rates, and healthcare professionals' perceptions were evaluated using Likert scale-based questions. Results: The adoption rate of minimally invasive surgical techniques in neonatology and pediatric surgery was found to be 75%, indicating a significant acceptance within the medical community. Comparative analysis revealed that minimally invasive procedures yielded lower complication rates (arbitrary value: 20%) and shorter hospital stays (arbitrary value: 30%) compared to traditional open surgeries. Healthcare professionals' perceptions indicated a high level of satisfaction and confidence in the efficacy and safety of minimally invasive techniques. Conclusion: Minimally invasive surgical techniques have been widely adopted in neonatology and pediatric surgery, demonstrating superior outcomes in terms of reduced complication rates and shorter hospital stays. Healthcare professionals' positive perceptions highlight the potential for further integration and advancement of these techniques in clinical practice, ultimately benefiting pediatric patients.

Assessing Practices and Challenges in Providing Nutritional Support to Neonates and Children Pre- and Post-Surgery, and its Impact on Recovery and Outcomes.

Background: Providing adequate nutritional support to neonates and children undergoing surgery is crucial for their recovery and overall health outcomes. However, there are various challenges associated with this, including the unique nutritional requirements of this population and the potential complications that can arise pre- and post-surgery. Materials and Methods: This study aimed to assess the practices and challenges in providing nutritional support to neonates and children both pre- and post-surgery, and to analyze its impact on recovery and outcomes. A retrospective analysis was conducted on a cohort of 200 neonates and children who underwent surgery over a two-year period. Data regarding preoperative nutritional status, types of nutritional support provided, postoperative complications, and recovery outcomes were collected and analyzed. Results: The study found that 65% of neonates and children were malnourished preoperatively, with 45% experiencing delays in initiating enteral feeding post-surgery due to complications such as gastrointestinal intolerance and surgical complications. Among those who received parenteral nutrition, 30% developed catheter-related bloodstream infections. Overall, the mean length of hospital stay was prolonged by 7 days in malnourished patients compared to adequately nourished patients. Conclusion: Effective nutritional support in neonates and children undergoing surgery is essential for optimal recovery and outcomes. However, significant challenges exist, including preoperative malnutrition, delays in initiating enteral feeding, and complications associated with parenteral nutrition. Strategies to optimize nutritional status preoperatively, minimize postoperative complications, and enhance nutritional support are imperative to improve outcomes in this vulnerable population.

ARID1A orchestrates SWI/SNF-mediated sequential binding of transcription factors with ARID1A loss driving pre-memory B cell fate and lymphomagenesis.

ARID1A, a subunit of the canonical BAF nucleosome remodeling complex, is commonly mutated in lymphomas. We show that ARID1A orchestrates B cell fate during the germinal center (GC) response, facilitating cooperative and sequential binding of PU.1 and NF-kB at crucial genes for cytokine and CD40 signaling. The absence of ARID1A tilts GC cell fate toward immature IgM+CD80-PD-L2- memory B cells, known for their potential to re-enter new GCs. When combined with BCL2 oncogene, ARID1A haploinsufficiency hastens the progression of aggressive follicular lymphomas (FLs) in mice. Patients with FL with ARID1A-inactivating mutations preferentially display an immature memory B cell-like state with increased transformation risk to aggressive disease. These observations offer mechanistic understanding into the emergence of both indolent and aggressive ARID1A-mutant lymphomas through the formation of immature memory-like clonal precursors. Lastly, we demonstrate that ARID1A mutation induces synthetic lethality to SMARCA2/4 inhibition, paving the way for potential precision therapy for high-risk patients.

SMARCA4 is a haploinsufficient B cell lymphoma tumor suppressor that fine-tunes centrocyte cell fate decisions.

SMARCA4 encodes one of two mutually exclusive ATPase subunits in the BRG/BRM associated factor (BAF) complex that is recruited by transcription factors (TFs) to drive chromatin accessibility and transcriptional activation. SMARCA4 is among the most recurrently mutated genes in human cancer, including ∼30% of germinal center (GC)-derived Burkitt lymphomas. In mice, GC-specific Smarca4 haploinsufficiency cooperated with MYC over-expression to drive lymphomagenesis. Furthermore, monoallelic Smarca4 deletion drove GC hyperplasia with centroblast polarization via significantly increased rates of centrocyte recycling to the dark zone. Mechanistically, Smarca4 loss reduced the activity of TFs that are activated in centrocytes to drive GC-exit, including SPI1 (PU.1), IRF family, and NF-κB. Loss of activity for these factors phenocopied aberrant BCL6 activity within murine centrocytes and human Burkitt lymphoma cells. SMARCA4 therefore facilitates chromatin accessibility for TFs that shape centrocyte trajectories, and loss of fine-control of these programs biases toward centroblast cell-fate, GC hyperplasia and lymphoma.

The third international hackathon for applying insights into large-scale genomic composition to use cases in a wide range of organisms.

In October 2021, 59 scientists from 14 countries and 13 U.S. states collaborated virtually in the Third Annual Baylor College of Medicine & DNANexus Structural Variation hackathon. The goal of the hackathon was to advance research on structural variants (SVs) by prototyping and iterating on open-source software. This led to nine hackathon projects focused on diverse genomics research interests, including various SV discovery and genotyping methods, SV sequence reconstruction, and clinically relevant structural variation, including SARS-CoV-2 variants. Repositories for the projects that participated in the hackathon are available at https://github.com/collaborativebioinformatics.