Faculty Bibliography

Eponyms are widely used in the field of orthopedic surgery, including for surgical instruments. Although their use is at times controversial, an appreciation of the history behind eponymous terms allows one to both recognize the shortcomings of the past and simultaneously be inspired by ingenious inventors. The primary purpose of this review is to provide a historical perspective of clamps and forceps commonly used in orthopedic surgery, to better appreciate the evolution of their use over time, and to inspire innovation to constantly improve upon surgical instrumentation as the field of orthopedic surgery advances. [Orthopedics. 2024;47(6):e287-e291.].

"See Your Dentist Twice a Year" is the standard of care today honored by dentists, requested by patients, and covered by insurance. Where is the scientific evidence to support this dictate? Several systematic reviews could find no support for or against it. When did it start? This paper traces the timeline of the statement and its appearance in toothpaste advertisements. It was first spotted in 1890 as part of a household guide for beauty preservation. Subsequently, the idea became a tagline in dental advertisements for Colgate Ribbon Toothpaste, Dr. Lyon's Dentifrice from 1913, and Pepsodent toothpaste starting in 1926.

BACKGROUND:Quitline counseling is an effective method for supporting smoking cessation, offering personalized and accessible assistance. Tobacco use is a significant public health issue among people living with HIV. In Vietnam, over 50% of men living with HIV use tobacco. However, there is limited research on Quitline use and retention rates in this population and a lack of research on factors associated with retention in Quitline counseling. The study aims to evaluate the factors associated with retention in Quitline counseling for smoking cessation among HIV-positive smokers receiving care at HIV outpatient clinics in Vietnam. METHOD/METHODS:The study analyzed data from a randomized controlled trial (RCT) that compared the effectiveness of three smoking cessation interventions for smokers living with HIV at 13 Outpatient Clinics in Ha Noi. A total of 221 smokers aged 18 and above living with HIV participated in Arm 1 of the RCT, which included screening for tobacco use (Ask), health worker-delivered brief counseling (Assist), and proactive referral to Vietnam's national Quitline (AAR), in which the Quitline reached out to the patient to engage them in up to 10 sessions of smoking cessation counseling. Retention in Quitline counseling was defined as participating in more than five counseling calls. The study used bivariate and logistic regression analyses to explore the associations between retention and other factors. RESULTS:Fifty-one percent of HIV-positive smokers completed more than five counseling sessions. Smokers living with HIV aged 35 or older (OR = 5.53, 95% CI 1.42-21.52), who had a very low/low tobacco dependence level (OR = 2.26, 95% CI 1.14-4.51), had a lower score of perceived importance of quitting cigarettes (OR = 0.87, 95% CI 0.76-0.99), had a household ban or partial ban on cigarettes smoking (OR = 2.58, 95% CI 1.39-4.80), and had chosen a quit date during the Quitline counseling (OR = 3.0, 95% CI 1.63-5.53) were more likely to retain in the Quitline counseling than those smokers living with HIV whose ages were less than 35, who had a high/very high tobacco dependence level, had a higher score of perception of the importance of quitting cigarettes, did not have a household ban on cigarettes smoking, and did not choose a quit date during counseling. CONCLUSION/CONCLUSIONS:There is a high retention rate in Quitline counseling services among PLWHs receiving care at HIV outpatient clinics. Tailoring interventions to the associated factors such as age, tobacco dependence, perceived importance of quitting, household smoking bans, and setting a quit date during counseling may improve engagement and outcomes, aiding in the reduction of smoking prevalence among HIV-positive individuals.

Sepsis-induced acute lung injury (ALI) is prevalent in patients with sepsis and has a high mortality rate. Peptidyl arginine deiminase 2 (PADI2) and PADI4 play crucial roles in mediating the host's immune response in sepsis, but their specific functions remain unclear. Our study shows that Padi2-/- Padi4-/- double KO (DKO) improved survival, reduced lung injury, and decreased bacterial load in Pseudomonas aeruginosa (PA) pneumonia-induced sepsis mice. Using single-cell RNA-Seq (scRNA-Seq), we found that the deletion of Padi2 and Padi4 reduced the Nlrp3+ proinflammatory macrophages and fostered Chil3+ myeloid cell differentiation into antiinflammatory macrophages. Additionally, we observed the regulatory role of the NLRP3/Ym1 axis upon DKO, confirmed by Chil3 knockdown and Nlrp3-KO experiments. Thus, eliminating Padi2 and Padi4 enhanced the polarization of Ym1+ M2 macrophages by suppressing NLRP3, aiding in inflammation resolution and lung tissue repair. This study unveils the PADIs/NLRP3/Ym1 pathway as a potential target in treatment of sepsis-induced ALI.

There is consensus about the importance of developing a strong cadre of effective multilevel interventions to eliminate the impacts of unjust social processes, such as structural racism and other harmful social determinants of health (SDOH), on health inequities in the USA. However, the available cadre of rigorously evaluated evidence-based interventions for SDOH mitigation remains underdeveloped relative to the magnitude of historic and current health inequities. The proposed manuscript addresses this gap in two ways: first, by introducing a heuristic framework to inform decisions in multilevel intervention development, study design, and selection of analytic methods and, second, by providing a roadmap for future applications of the framework in multilevel intervention research through an exemplar application using the ongoing NIH-funded evaluation study of the Nurse-Community-Family Partnership (NCFP) intervention. NCFP leverages individual, family, institutional, and system factors to shape COVID-19 mitigation outcomes at the individual and household levels. NCFP takes an approach informed by the heuristic framework to addressing and mitigating unjust social processes and other harmful SDOH. We discuss the application of a two-arm parallel explanatory group randomized trial to evaluate the efficacy of NCFP in improving the primary (COVID-19 testing uptake) and secondary (adoption of COVID-19 control measures, COVID-19 vaccine uptake, mutual aid capacity, etc.) outcomes at the individual and household levels. The analysis approach relies on random-intercept models, and we calculate the variance partitioning coefficient to estimate the extent to which household- and individual-level variables contribute to the outcome, allowing examination of NCFP effects at multiple levels.

The notochord is an axial structure required for the development of all chordate embryos, from sea squirts to humans. Over the course of more than half a billion years of chordate evolution, in addition to its structural function, the notochord has acquired increasingly relevant patterning roles for its surrounding tissues. This process has involved the co-option of signaling pathways and the acquisition of novel molecular mechanisms responsible for the precise timing and modalities of their deployment. To reconstruct this evolutionary route, we surveyed the expression of signaling molecules in the notochord of the tunicate Ciona, an experimentally amenable and informative chordate. We found that several genes encoding for candidate components of diverse signaling pathways are expressed during notochord development, and in some instances, display distinctive regionalized and/or lineage-specific patterns. We identified and deconstructed notochord enhancers associated with TGF-β and Ctgf, two evolutionarily conserved signaling genes that are expressed dishomogeneously in the Ciona notochord, and shed light on the cis-regulatory origins of their peculiar expression patterns.

We examined the impact of auditory stimuli and their methods on a dynamic balance task performance. Twenty-four young adults wore an HTC Vive headset and dodged a virtual ball to the right or left based on its color (blue to the left, red to the right, and vice versa). We manipulated the environment by introducing congruent (auditory stimuli from the correct direction) or incongruent (auditory stimuli played randomly from either side) and comparing a multimodal (visual and congruent auditory stimuli) to unimodal (visual or auditory stimuli) presentation. We tested four apparatuses: loudspeakers, headphones, passthrough, (wearing headphones while auditory stimuli come from loudspeakers) and room simulation (externalization via headphones). We quantified reaction time (RT) and accuracy (choosing the correct direction to dodge) from the head movement. We hypothesized that the weight of the headset will slow RT, and that externalization of the auditory stimuli will make it more usable when no visual cues are provided. Interestingly, both hypotheses were refuted. In silent conditions, RT was faster with headphones compared to loudspeakers, but this difference disappeared when auditory stimuli were introduced. Participants used congruent auditory stimuli to improve accuracy but disregarded incongruent auditory stimuli across all apparatuses except for room simulation. In conclusion, this study confirmed that healthy young adults can use congruent auditory stimuli to enhance accuracy and disregard incongruent auditory stimuli such that accuracy is not harmed. RT was either faster or the same with headphones compared to loudspeakers. Notably, this specific room simulation did not enhance performance.

Central body fat distribution affects kidney function. Abdominal fat measurements using computed tomography (CT) may prove superior in assessing body composition-related kidney risk in living kidney donors. This retrospective cohort study including 550 kidney donors aimed to determine the association between CT-measured abdominal fat areas and kidney function before and after donor nephrectomy. Donors underwent glomerular filtration rate measurements (¹²⁵I-Iothalamate, mGFR) before and 3 months after donation. Linear regression analyses with body surface area (BSA)-standardized and crude mGFR were performed to assess the association of height-indexed tomographic fat measurements with kidney function. In age-, and sex-adjusted analyses higher levels of total abdominal, visceral, subcutaneous, and intramuscular adipose tissue index were significantly associated with lower mGFR levels before donation (BSA-standardized mGFR: visceral adipose tissue index: Βeta=-0.11, p < 0.001, subcutaneous: Βeta=-0.10, p < 0.001, intramuscular: Βeta=-1.18, p < 0.001, total abdominal: Βeta=-0.07, p < 0.001). Higher tomographic abdominal fat is associated with lower BSA-standardized mGFR after donation and a greater decrease in mGFR between screening and 3 months post-donation. This study shows that CT-measured abdominal fat area is associated with kidney function before and after living kidney donation.