Lorenzen McManus (skiingcircle59)

Caveolae are specialized domains of the vertebrate cell surface with a well-defined morphology and crucial roles in cell migration and mechanoprotection. Unique compositions of proteins and lipids determine membrane architectures. The precise caveolar lipid profile and the roles of the major caveolar structural proteins, caveolins and cavins, in selectively sorting lipids have not been defined. Here, we used quantitative nanoscale lipid mapping together with molecular dynamic simulations to define the caveolar lipid profile. We show that caveolin-1 (CAV1) and cavin1 individually sort distinct plasma membrane lipids. Intact caveolar structures composed of both CAV1 and cavin1 further generate a unique lipid nano-environment. The caveolar lipid sorting capability includes selectivities for lipid headgroups and acyl chains. Because lipid headgroup metabolism and acyl chain remodeling are tightly regulated, this selective lipid sorting may allow caveolae to act as transit hubs to direct communications among lipid metabolism, vesicular trafficking, and signaling.The COVID-19 pandemic has impacted the lives and workplaces of individuals across the world substantially, in ways that are yet largely unknown. This commentary aims to provide an early snapshot of the experiences of pediatric postdoctoral fellows in academic medical settings; specifically, we will explore the impact of the pandemic on developing mastery within several competencies (e.g., research, professional development, clinical, interdisciplinary). These competencies are critical elements to fellowship to prepare for independent practice. Several models of training competencies for professional psychology and pediatric psychology exist, which focus on trainee skill development. Measures taken to minimize the spread of COVID-19 have directly impacted hospital systems and training, requiring programs to adapt competencies in various domains, such as increased familiarity with telehealth and virtual supervision. Additionally, fellows experienced an impact of the pandemic on securing employment following fellowship, conducting research and program development activities, and on cognitive flexibility and self-care. Governing bodies, such as the APA and Council of Chairs of Training Councils, have released statements and guidelines on addressing training of postdoctoral fellows including increasing flexibility of training methods, limiting in-person contact, and adjusting educational and licensing requirements. This paper offers informed commentary and diverse perspectives from current postdoctoral fellows engaged in a variety of clinical and research responsibilities regarding how the COVID-19 pandemic has impacted their training. We hope this paper will provide important insight into the unique experiences of postdoctoral fellows during the capstone year(s) of training prior to independent work and inform recommendations for postdoctoral training programs.Duck viral hepatitis (DVH) mainly affects ducklings under 1 month of age, causes liver necrosis, enlargement, and hemorrhage, and is highly lethal, seriously jeopardizing the duck industry. The prevalence of serotypes DHAV-1 and DAstV-3 is increasing, and co-infection is common. Moreover, the similar clinical characteristics of the DHAV-1 and DAstV-3 infections and high frequency of co-infection make diagnosis difficult. In this study, to establish a method for the rapid simultaneous detection of DHAV-1 and DAstV-3 , two pairs of specific primers were designed according to their conserved gene regions. A SYBR Green I-based real-time PCR assay was successfully established that can quickly and differentially detect the two viruses. Moreover, the assay is highly specific and does not show cross-reaction with other common viruses. The detection limit of the method is 7.34 × 10 1 copies/μL and 3.78 × 10 1 copies/μL for DHAV-1 and DAstV-3, respectively, indicating high sensitivity. A total of 34 clinical samples were tested u