Faculty Bibliography

Accurate working impression is an essential requirement for the fabrication of implant prosthesis, and digital impressions have recently become more popular. In this case report, a completely digital workflow is introduced for the fabrication of three single-unit screw-retained implant crowns on the posterior maxilla by a dental student, under supervision. This approach involved the use of an intraoral scanner to capture a digital impression of the three implants and their surrounding mucosa, the opposing arch, and occlusion. The use of intraoral scanners and digital impressions illustrated an efficient and patient-friendly method of capturing the necessary data to fabricate a well-fitted prothesis. The aim of this case report is to examine a fully digital approach in the production of multiple single-unit implant crowns.

OBJECTIVE:Data from DNA genotyping via a 96-SNP panel in a study of 25,015 clinical samples were utilized for quality control and tracking of sample identity in a clinical sequencing network. The study aimed to demonstrate the value of both the precise SNP tracking and the utility of the panel for predicting the sex-by-genotype of the participants, to identify possible sample mix-ups. RESULTS:Precise SNP tracking showed no sample swap errors within the clinical testing laboratories. In contrast, when comparing predicted sex-by-genotype to the provided sex on the test requisition, we identified 110 inconsistencies from 25,015 clinical samples (0.44%), that had occurred during sample collection or accessioning. The genetic sex predictions were confirmed using additional SNP sites in the sequencing data or high-density genotyping arrays. It was determined that discrepancies resulted from clerical errors (49.09%), samples from transgender participants (3.64%) and stem cell or bone marrow transplant patients (7.27%) along with undetermined sample mix-ups (40%) for which sample swaps occurred prior to arrival at genome centers, however the exact cause of the events at the sampling sites resulting in the mix-ups were not able to be determined.

INTRODUCTION/BACKGROUND:It is unclear how early neuronal deficits occur in tauopathies, if these are associated with changes in neuronal network activity, and if they can be alleviated with therapies. METHODS:imaging in tauopathy mice at 6 versus 12 months, compared to controls, and treated the younger animals with a tau antibody. RESULTS:Neuronal function was impaired at 6 months but did not deteriorate further at 12 months, presumably because cortical tau burden was comparable at these ages. At 6 months, neurons were mostly hypoactive, with enhanced neuronal synchrony, and had dysregulated responses to stimulus. Ex vivo, electrophysiology revealed altered synaptic transmission and enhanced excitability of motor cortical neurons, which likely explains the altered network activity. Acute tau antibody treatment reduced pathological tau and gliosis and partially restored neuronal function. DISCUSSION/CONCLUSIONS:Tauopathies are associated with early neuronal deficits that can be attenuated with tau antibody therapy. HIGHLIGHTS/CONCLUSIONS:Neuronal hypofunction in awake and behaving mice in early stages of tauopathy. Altered network activity disrupted local circuitry engagement in tauopathy mice. Enhanced neuronal excitability and altered synaptic transmission in tauopathy mice. Tau antibody acutely reduced soluble phospho-tau and improved neuronal function.

While power is often defined and operationalized as control or influence over others, alternative conceptualizations define power as the ability to meet various fundamental needs. We argue that this conceptualization may better capture how marginalized minority group members understand their group's power or powerlessness. However, there is little research examining how people themselves construe group-based power. The present study, therefore, used qualitative inquiry to examine perceived ingroup power among Asian Americans, an underrepresented racial minority group with an ambivalent power status in society. Reflexive thematic analysis of 25 interviews illustrated the relevance of Prilleltensky's (J. Community Psychol., 36, 2008, 116) psychopolitical conceptualization of power. Specifically, we identified eight themes that reflect various context-specific construals of power as oppression, wellness and liberation. Additionally, the findings suggest the need to consider intragroup heterogeneity in power and to situate how power is understood in the given sociopolitical, structural context.

This review focuses on advancements in polymer science as it relates to three-dimensional (3D) and four-dimensional (4D) printing technologies, with a specific emphasis on applications in the biomedical field. While acknowledging the breadth of 3D and 4D printing applications, this paper concentrates on the use of polymers in creating biomedical devices and the challenges associated with their implementation. It explores integrative modeling and experimental insights driving innovations in these fields, focusing on sustainable manufacturing with biodegradable polymers, a comparative analysis of 3D and 4D printing techniques, and applications in biomedical devices. Additionally, the review examines the materials used in both 3D and 4D printing, offering a detailed comparison of their properties and applications. By highlighting the transformative potential of these technologies in various industrial and medical applications, the paper underscores the importance of continued research and development. The scope of this review also includes an overview of future research directions to address current challenges, enhance material capabilities, and explore practical applications.

BACKGROUND/OBJECTIVES/OBJECTIVE:School meals are an important source of nutrition for children and have been found to help mitigate food insecurity. This study evaluated the association between food insecurity and school meal participation and whether parental perceptions about school meals differ by food security status. METHODS:In May 2022, 1110 Californian parents of K-12 students shared their perceptions about school meals, including meal quality, healthiness, stigma, and benefits, as well as their child's participation in school meals, in an online survey. Household food security was determined using the USDA 6-item module. Logistic and Poisson regression models were used for analysis. RESULTS:< 0.05). CONCLUSIONS:Food insecurity is prevalent among California families with school-age children, even in families not eligible for federal FRPMs. Food-insecure households have more negative perceptions of school meals and experience more stigma, though they also report higher breakfast participation. Improving school meal quality and appeal, ensuring parents are familiar with meal quality and healthfulness, and reducing stigma may ease food insecurity while improving children's health.

The traditional view of cancer emphasizes a genes-first process. Novel cancer traits arise by genetic mutations that spread to drive phenotypic change. However, recent data support a phenotypes-first process in which nonheritable cellular variability creates novel traits that later become heritably stabilized by genetic and epigenetic changes. Single-cell measurements reinforce the idea that phenotypes lead genotypes, showing how cancer evolution follows normal developmental plasticity and creates novel traits by recombining parts of different cellular developmental programs. In parallel, studies in evolutionary biology also support a phenotypes-first process driven by developmental plasticity and developmental recombination. These advances in cancer research and evolutionary biology mutually reinforce a revolution in our understanding of how cells and organisms evolve novel traits in response to environmental challenges.

OBJECTIVE:Determine the effects of differential maxillary expansion on nasal width in patients with unilateral cleft lip and alveolus with or without cleft of the secondary palate (UCLA ± P). DESIGN/METHODS:Retrospective radiographic study. SETTING/METHODS:Institutional. PARTICIPANTS/METHODS:Forty patients with UCLA ± P who had alveolar bone grafting (ABG) between 2015 and 2020 and available preexpansion and postexpansion cone beam computed tomography (CBCT) scans. Twenty patients with UCLA ± P who underwent ABG without expansion were included as controls. MAIN OUTCOME MEASURE/METHODS:Percent change in width at the nasal pyriform, inferior turbinates, and alar base on cleft and noncleft sides. RESULTS: ≤ 0.001) in the expansion group. There was good to excellent intra-rater and inter-rater agreement for measurements. CONCLUSION/CONCLUSIONS:Patients with UCLA ± P who undergo differential maxillary expansion before ABG exhibit greater nasal widening on the cleft side.

Methylation quantitative trait loci (meQTLs) quantify the effects of genetic variants on DNA methylation levels. However, most published studies utilize bulk methylation datasets composed of different cell types and limit our understanding of cell-type-specific methylation regulation. We propose a hierarchical Bayesian interaction (HBI) model to infer cell-type-specific meQTLs, which integrates a large-scale bulk methylation data and a small-scale cell-type-specific methylation data. Through simulations, we show that HBI enhances the estimation of cell-type-specific meQTLs. In real data analyses, we demonstrate that HBI can further improve the functional annotation of genetic variants and identify biologically relevant cell types for complex traits.

BACKGROUND:New York (NY) State implemented a new cystic fibrosis (CF) newborn screen (NBS) algorithm in December 2017 with improvement in positive predictive value and unanticipated increased identification of infants with cystic fibrosis transmembrane conductance regulator (CFTR)-related metabolic syndrome (CRMS). Repeat sweat testing is recommended in infants with CRMS. During the COVID-19 pandemic infants with CRMS were lost to follow up. With this quality improvement (QI) initiative, we aimed to perform repeat sweat testing in 25% of infants lost to follow up. We also describe consensus recommendations for CRMS from the NY CF NBS Consortium. METHODS:Our QI team identified the primary drivers contributing to absent follow up, outreached to families, and created a questionnaire to evaluate parental understanding of CRMS using QI-based strategies. RESULTS:Of 350 infants diagnosed with CRMS during the study period, 179 (51.1%) infants were lost to follow up. A total of 31 (17.3%) were scheduled for repeat sweat tests and followed up at CF Centers. Families reported high satisfaction with the CRMS knowledge questionnaire. CONCLUSIONS:With this QI-based approach, we effectively recaptured infants with CRMS previously lost to follow up during the COVID-19 pandemic. Ongoing concerns about infection risk and lack of understanding on the part of families and pediatricians likely contributed to patients with CRMS lost to follow up. Consensus recommendations for CRMS include annual visits with repeat sweat testing until 2-6 years of age and education for adolescents about clinical and reproductive implications of CRMS.