Electronic Structure Modulation Induced by the Synergy of Cobalt Low-Nuclearity Clusters and Mononuclear Sites for Efficient Oxygen Electrocatalysis.

The development of high-performance bifunctional single-atom catalysts for use in applications, such as zinc-air batteries, is greatly impeded by mild oxygen reduction and evolution reactions (ORR and OER). Herein, we report a bifunctional oxygen electrocatalyst designed to overcome these limitations. The catalyst consists of well-dispersed low-nuclearity Co clusters and adjacent Co single atoms over a nitrogen-doped carbon matrix (Co/NC).

Cellular Attachment Assays to Dissect Molecular Drivers of Epidermal Cell Function.

Cell attachment is the process by which cells interact with their environment, including neighboring cells and the extracellular matrix (ECM). Attachment plays a critical role in maintaining skin integrity, promoting wound healing, and facilitating cellular communication in epidermal cells, such as keratinocytes. However, the many different factors that can influence this mechanism make it challenging to recapitulate in cellular models.

Interleukin-13 receptor subunit alpha 2 (IL-13Rα2) induces chemokine expression and macrophage polarization to promote inflammation and fibrosis.

Purpose: Interleukin-13 (IL-13) is a known mediator of radiation induced lung injury (RILI). IL-13Rα2 has an accepted role in antagonizing IL-13 signaling by acting as a decoy receptor. We sought to understand the role of IL-13Rα2 in the progression of RILI.

Multiple Central Nervous System Cryptococcomas Masquerading as Lymphoma.

Cryptococcal meningitis is a leading cause of morbidity and mortality in patients infected with human immunodeficiency virus. In over 90% of cases, it occurs at CD4 T lymphocyte (CD4) cell counts of less than 100 cells/mm. Cryptococcomas are rare granulomatous lesions that can occur in disseminated central nervous system cryptococcal infection, primarily in immunocompetent hosts.

HPV-Associated Head and Neck Second Primary Tumors-A Case Series.

Background: There is limited understanding of head and neck second primary tumors (SPTs) in HPV-associated squamous cell carcinoma (SCC). Analogous to the concept of field cancerization of the upper airway known to contribute to the development of smoking-related head and neck SPTs, this case series reports four cases of HPV-associated SPTs.

Methods: We reviewed the charts of four patients diagnosed with HPV-associated oropharyngeal SCC who subsequently developed HPV-associated SPTs.

Assessing yellow fever outbreak potential and implications for vaccine strategy.

Yellow fever (YF), a vector-borne viral hemorrhagic fever, is endemic in tropical regions of Africa and South America, with large vaccination programmes being used for control. However, significant outbreaks have occurred in recent years. Data on infection rates and seroprevalence is often sparse, requiring robust mathematical models to estimate the burden of yellow fever.

Quinoline-based compounds can inhibit diverse enzymes that act on DNA.

DNA methylation, as exemplified by cytosine-C5 methylation in mammals and adenine-N6 methylation in bacteria, is a key epigenetic process. Developing non-nucleoside inhibitors to cause DNA hypomethylation is crucial for treating various conditions without the toxicities associated with existing cytidine-based hypomethylating agents. This study characterized fifteen quinoline-based analogs, particularly compounds with additions like a methylamine (9) or methylpiperazine (11), which demonstrate similar low micromolar inhibitory potency against human DNMT1 and Clostridioides difficile CamA.

Retinal Input to Macaque Superior Colliculus Derives from Branching Axons Projecting to the Lateral Geniculate Nucleus.

The superior colliculus receives a direct projection from retinal ganglion cells. In primates, it remains unknown if the same ganglion cells also supply the lateral geniculate nucleus. To address this issue, a double-label experiment was performed in two male macaques.

Efficacy of Intensified Hygiene Measures with or without the Addition of Doxycycline in the Management of Filarial Lymphedema: A Randomized Double-Blind, Placebo-Controlled Clinical Trial in Tanzania.

Lymphedema, hydrocele, and acute adenolymphangitis (ADL) are chronically disabling consequences in patients with lymphatic filariasis (LF). Provision of morbidity management and disability prevention and concurrent mass drug administration of anthelmintics are two pillars for elimination of LF. This study assessed the impact of strict hygiene protocols with or without doxycycline on the progression of filarial lymphedema.

In Silico Analysis of the ROP29 Protein as a Vaccine Candidate Against .

The progression of () invasion is aided by rhoptry proteins (ROPs), which are also crucial for the parasite's survival in host cells. In this study, in silico analysis was performed to examine the various aspects of the ROP29 protein, such as physicochemical properties, potential T- and B-cell epitopes, and other significant features. The research revealed that there were 55 possible sites for posttranslational modification in the ROP29 protein.

Benchmarking Quantum Mechanical Levels of Theory for Valence Parametrization in Force Fields.

A wide range of density functional methods and basis sets are available to derive the electronic structure and properties of molecules. Quantum mechanical calculations are too computationally intensive for routine simulation of molecules in the condensed phase, prompting the development of computationally efficient force fields based on quantum mechanical data. Parametrizing general force fields, which cover a vast chemical space, necessitates the generation of sizable quantum mechanical data sets with optimized geometries and torsion scans.

LEDoxy-SL: A Placebo-Controlled, Double-Blind, Randomized, 24-Month Trial of Six Weeks of Daily Doxycycline Plus Hygiene-Based Essential Care for Reducing Progression of Filarial Lymphedema in Sri Lanka.

Morbidity management of filarial lymphedema remains a challenge even during the post-lymphatic filariasis elimination era in Sri Lanka despite provision of the predominantly hygiene-based WHO Essential Package of Care. Because prior studies have suggested that 6 weeks of doxycycline may reduce progression of limb lymphedema, we conducted a randomized, placebo-controlled, superiority study to evaluate this possibility in Sri Lanka. Patients aged 14 to 65 years with lymphedema in one or both legs received either 200 mg of doxycycline daily for 6 weeks or matching placebo.

Surgery for Craniosynostosis: Developing a Psychosocial Booklet for Families.

Parents of children with craniosynostosis may experience psychological distress, particularly during intensive periods of treatment. Yet, recent research indicates parents may not be accessing the support they need to cope with common challenges. The aim was to develop an evidence-based booklet to promote psychological health in families undergoing surgery and to assess the acceptability of the booklet among the craniosynostosis community.

Perceptions of general surgery residents at military treatment facilities: Excellent training with crisis of confidence.

Background: The declining operative volume at Military Treatment Facilities (MTFs) has resulted in Program Directors finding alternate civilian sites for resident rotations. The continued shift away from MTFs for surgical training is likely to have unintended negative consequences.

Methods: An anonymous survey was generated and sent to the program directors of military general surgery training programs for distribution to their residents.

DNA sequence and chromatin differentiate sequence-specific transcription factor binding in the human malaria parasite Plasmodium falciparum.

Development of the malaria parasite, Plasmodium falciparum, is regulated by a limited number of sequence-specific transcription factors (TFs). However, the mechanisms by which these TFs recognize genome-wide binding sites is largely unknown. To address TF specificity, we investigated the binding of two TF subsets that either bind CACACA or GTGCAC DNA sequence motifs and further characterized two additional ApiAP2 TFs, PfAP2-G and PfAP2-EXP, which bind unique DNA motifs (GTAC and TGCATGCA).

The Craniofacial Collaboration UK: Developmental Outcomes in 7- and 10-Year-Old Children With Sagittal Synostosis.

The Craniofacial Collaboration UK (CC-UK) protocol is a shared agreement across the 4 UK Highly Specialist Craniofacial Centres (HSCCs) to conduct robust neurodevelopmental and psychosocial clinical screening for children with craniosynostosis. This agreement allows for the analysis of outcomes of a homogenous sample of children with single suture craniosynostosis (SSC), a frequent limitation of the existing research. The current study is the latest analysis of CC-UK data on behavioral, cognitive, and psychosocial outcomes.

Revised Diagnosis From Histiocytic Neoplasm to Optic Chiasm Glioblastoma After Genetic Analysis.

A 46-year-old man presented with left eye blurring. Automated visual field testing showed an incongruous right hemianopia, with sparing of the lower temporal quadrant in the right eye. MRI revealed foci of gadolinium enhancement in the optic chiasm and optic tracts.

Impostor Phenomenon Among Recently Graduated General Surgeons.

Background: Imposter phenomenon can occur in highly competitive fields causing internal feelings of fraud and self-doubt. Significant imposterism has been recently reported amongst general surgery residents.

Study Design: We hypothesized that attending surgeons, navigating the transition into independent practice, would report a similar experience.