bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Effect of Maternal Smoking on Offspring Smoking Is Unrelated to Heritable Personality Traits or Initial Subjective Experiences
Authors: Weber Tess L , Selya Arielle , Wakschlag Lauren S , Dierker Lisa , Rose Jennifer S , Hedeker Don , Mermelstein Robin J 
Published: April 2021

Abstract

Introduction
Maternal smoking is a risk factor for offspring smoking. Lifetime maternal smoking vs. prenatal tobacco exposure (PTE) appears to act through different mechanisms. This study tested the hypothesis that maternal smoking measures’ effects on offspring smoking could be attributable to hereditary mechanisms: personality traits (novelty-seeking, impulsivity, neuroticism, and self-esteem) and initial subjective smoking experiences (pleasurable, unpleasurable, and dizziness).

Methods
Data were drawn from the Social and Emotional Contexts of Adolescent Smoking Patterns study, an 8-year longitudinal study of 9th or 10th graders at baseline (≈age 15) who experiment with smoking (&lt;100 lifetime cigarettes; N = 594) at baseline. The young adult smoking frequency at the 8-year follow-up (≈age 23) was examined as a function of baseline characteristics (heritable trait, maternal smoking, PTE, and sex) and baseline smoking frequency and nicotine dependence. Structural equation models determined whether the inclusion of each heritable trait among offspring confounded the effects of maternal smoking (PTE or maternal smoking) on offspring smoking and nicotine dependence.

Results
Impulsiveness was associated with intermediate adolescent smoking frequency (B = 0.135, SD = 0.043, p = .002) and nicotine dependence (B = 0.012, SD = 0.003, p &lt; .001). Unpleasurable first experience (B = 0.886, SD = 0.374, p = .018) and dizziness (B = 0.629, SD = 0.293, p = .032) showed a trend with intermediate smoking frequency that was nonsignificant after correcting for multiple comparisons. These traits did not confound maternal smoking’s effects.

Conclusions
None of the heritable traits examined in this model explained the effect of maternal smoking measures on adolescence or young adulthood offspring smoking. Further research is needed to elucidate the mechanism by which PTE and maternal smoking are linked to offspring smoking.

Implications
Prenatal tobacco exposure (PTE) and mother’s lifetime smoking present separate and independent risks for offspring smoking; however, their mechanisms seem unrelated to heritable personality traits and initial subjective smoking experiences. These findings have implications for separate screening strategies tailored to different age groups, especially related to PTE’s risk of smoking in young adulthood. Additionally, these findings add to the known risks of maternal smoking. Further research is needed to understand the mechanism underlying the risk posed by maternal lifetime smoking and PTE on offspring smoking behavior.
The Illegal Experimental Tobacco Marketplace I: Effects of Vaping Product Bans
Authors: Freitas-Lemos Roberta , Stein Jeffrey S , Tegge Allison N , Kaplan Brent A , Heckman Bryan W , Cummings K Michael , Bickel Warren K 
Published: April 2021

Abstract

Objectives
Banning vaping products may have unintended outcomes, such as increased demand for illegal products. This study experimentally examined the effects of a vaping ban and a flavored vaping ban on the probability of purchasing illicit vaping products, and factors affecting purchasing from a hypothetical illegal marketplace.

Methods
A crowdsourced sample of exclusive cigarette smokers, exclusive e-cigarette users, and frequent dual users (n = 150) completed hypothetical purchasing trials in an Experimental Tobacco Marketplace under three conditions (no ban, vaping ban, and flavored vaping ban). Participants chose to purchase in a hypothetical legal experimental tobacco marketplace (LETM) or illegal experimental tobacco marketplace (IETM). Vaping products were available in each marketplace depending on the condition. Other tobacco products were always available in the LETM. A hypothetical illicit purchase task with five fine amounts assessed the effect of monetary penalties.

Results
Participants from all groups were more likely to purchase from the IETM when product availability in the LETM was more restricted, with e-cigarette users being most affected. The likelihood of purchasing illegal products was systematically decreased as monetary penalties associated with the IETM increased, with e-cigarette users showing greater persistence in defending their illicit purchases.

Conclusions
Restricting vaping products from the marketplace may shift preference towards purchasing vaping products in the illegal marketplace. Nevertheless, penalties imposed on consumer’s behavior might be effective in preventing illicit trade. The IETM is a methodological extension that supports the utility and flexibility of the ETM as a framework for understanding the impact of different tobacco regulatory policies.

Implications
This study suggests that limiting or banning vaping products as a possible strategy to reduce the adverse effects of vaping products could result in some tobacco-users seeking banned products from illegal sources. Monetary fines were shown to reduce illegal purchases. Therefore, policymakers should consider implementing strategies that may mitigate illegal purchases.
Season, anthocyanin supplementation, and flight training have mixed effects on the antioxidant system of migratory European Starlings
Authors: Frawley Abigail E , DeMoranville Kristen J , Carbeck Katherine M , Trost Lisa , Bryła Amadeusz , Dzialo Maciej , Sadowska Edyta T , Bauchinger Ulf , Pierce Barbara J , McWilliams Scott R 
Published: April 2021

Abstract
Migratory birds engage in 2 periods of endurance flight annually as they travel between summer breeding and overwintering grounds, and such endurance flights likely incur oxidative costs. These costs may differ between fall and spring migration, especially for females who must prepare for breeding and egg laying in spring. The objective of this study of a migratory bird was to test proposed hypotheses about how key components of the female’s antioxidant system differ in response to flight training in the fall and spring and to dietary antioxidant supplementation. We hand raised female European Starlings (Sturnus vulgaris) and fed them either a diet supplemented with dietary anthocyanins or a diet without added anthocyanins. We flew females in a wind tunnel for 15 days during fall and spring migration seasons and measured over time oxidative lipid damage (d-ROMs) and 3 components of the antioxidant system: nonenzymatic antioxidant capacity (OXY), uric acid, and glutathione peroxidase (GPx) activity. Prior to flight training, OXY and oxidative damage were lower in females during spring compared with fall, and females fed a low-antioxidant diet had consistently higher circulating uric acid. GPx activity decreased more in spring immediately after a long-duration flight. Females fed a high-antioxidant diet had a greater decrease in OXY after the 15-day flight training. Flight-trained females had higher circulating uric acid than untrained females immediately after the longest-duration flight and decreased GPx activity after the 15-day flight training. In sum, females upregulated enzymatic and nonenzymatic endogenous antioxidants in spring, and females fed a diet with less antioxidants appear to compensate by increasing circulating uric acid. Our findings emphasize the important role of dietary antioxidants for birds during migration, and similar flights in fall and spring likely represent distinct oxidative challenges in the life history of female birds.
Super determinant1A, a RAWULdomain-containing protein, modulates axillary meristem formation and compound leaf development in tomato
Authors: López Hernán , Schmitz Gregor , Thoma Rahere , Theres Klaus 
Published: April 2021

Abstract
Shoot branching and complex leaf development relies on the establishment of boundaries that precedes the formation of axillary meristems (AMs) and leaflets. The tomato (Solanum lycopersicum) super determinant mutant is compromised in both processes, due to a mutation in Sde1A. Sde1A encodes a protein with a RAWUL domain, which is also present in Polycomb Group Repressive Complex 1 (PRC1) RING finger proteins and WD Repeat Domain 48 proteins. Genetic analysis revealed that Sde1A and Bmi1A cooperate, whereas Bmi1C antagonizes both activities, indicating the existence of functionally opposing PRC1 complexes that interact with Sde1A. Sde1A is expressed at early stages of boundary development in a small group of cells in the center of the leaf-axil boundary, but its activity is required for meristem formation at later stages. This suggests that Sde1A and Bmi1A promote AM formation and complex leaf development by safeguarding a pool of cells in the developing boundary zones. Genetic and protein interaction analyses showed that Sde1A and Lateral suppressor (Ls) are components of the same genetic pathway. In contrast to ls, sde1a mutants are not compromised in inflorescence branching, suggesting that Sde1A is a potential target for breeding tomato cultivars with reduced side-shoot formation during vegetative development.
Combined action of guard cell plasma membrane rapid- and slow-type anion channels in stomatal regulation
Authors: Jalakas Pirko , Nuhkat Maris , Vahisalu Triin , Merilo Ebe , Brosché Mikael , Kollist Hannes 
Published: April 2021

Abstract
Initiation of stomatal closure by various stimuli requires activation of guard cell plasma membrane anion channels, which are defined as rapid (R)- and slow (S)-type. The single-gene loss-of-function mutants of these proteins are well characterized. However, the impact of suppressing both the S- and R-type channels has not been studied. Here, by generating and studying double and triple Arabidopsis thaliana mutants of SLOW ANION CHANNEL1 (SLAC1), SLAC1 HOMOLOG3 (SLAH3), and ALUMINUM-ACTIVATED MALATE TRANSPORTER 12/QUICK-ACTIVATING ANION CHANNEL 1 (QUAC1), we show that impairment of R- and S-type channels gradually increased whole-plant steady-state stomatal conductance. Ozone-induced cell death also increased gradually in higher-order mutants with the highest levels observed in the quac1 slac1 slah3 triple mutant. Strikingly, while single mutants retained stomatal responsiveness to abscisic acid, darkness, reduced air humidity, and elevated CO2, the double mutant lacking SLAC1 and QUAC1 was nearly insensitive to these stimuli, indicating the need for coordinated activation of both R- and S-type anion channels in stomatal closure.
Histopathologic PD-L1 Tumor Expression and Prognostic Significance in Nonmelanoma Skin Cancers: A Systematic Review
Authors: Lehmer Larisa , Choi Franchesca , Kraus Christina , Shiu Jessica , de Feraudy Sebastien , Elsensohn Ashley 
Published: April 2021

Abstract:PD-L1 and PD-1 inhibitors are being increasingly used to treat a variety of nonmelanoma skin cancers (NMSCs). This systematic review summarizes PD-L1 expression in NMSCs and determines its use for prognosis using targeted immunotherapy. A primary search of peer-reviewed English-language medical literature was conducted for studies on PD-L1 tumor expression in biopsied or excised NMSCs. Fifty-nine articles met criteria for inclusion. PD-L1 expression in advanced NMSCs ranged from 22%–89% for basal cell carcinomas, 42%–50% for Merkel cell carcinomas, and 26%–100% for squamous cell carcinomas. Study limitations included clone heterogeneity across studies, complicating comparison of PD-L1 expression. Differences were also noted in the selection of tumor reactivity threshold. We conclude that there is insufficient evidence to determine the prognostic significance of PD-L1 expression in NMSCs as a whole, but this remains a promising area. More investigation into the role of tumor PD-L1 as a biomarker for predicting clinical response to PD-L1 and PD-1 inhibitors in NMSCs is needed.
Understanding the Complexity, Underlying Processes, and Influencing Factors for Optimal Multidisciplinary Teamwork in Hospital-Based Cancer Teams
Authors: Horlait Melissa , Baes Saskia , De Regge Melissa , Leys Mark 
Published: April 2021

BackgroundMultidisciplinary teamwork has become the standard in care for oncological patients and their treatment trajectory when comprehensive, holistic, and high-quality cancer care is needed. Working together from a variety of perspectives is difficult to achieve and has well-known pitfalls, such as miscommunication and poor coordination.ObjectiveTo describe and synthesize the factors influencing and the processes underlying optimal multidisciplinary teamwork.MethodsAn integrative review was conducted, guided by the framework of Whittemore and Knafl. The systematic search for literature published since 2010 in 3 databases (PubMed, Web of Science, and Scopus) yielded 49 articles.ResultsEighty-eight percent of the included studies focus on multidisciplinary team meetings, rather than on the wider notion of multidisciplinary teamwork. We identified influencing factors on the basis of structural features of the team, hospital, and health system, as well as process features of multidisciplinary teamwork in multidisciplinary team meetings.ConclusionTo improve multidisciplinary teamwork, the focus needs to be on the process of collaboration throughout the cancer care trajectory of the patient. A more integrated, interdisciplinary approach should be aimed for to recognize the role and contribution of all disciplines involved.ImplicationsA cultural change is needed toward interdisciplinary practice in hospitals to reach partnership between all involved professionals as part of a participatory, collaborative, and coordinated approach.
Vasospasm severity is associated with cerebral infarction after subarachnoid hemorrhage
Authors: Snider Samuel B , Migdady Ibrahim , LaRose Sarah L , Mckeown Morgan E , Regenhardt Robert W , Rosalind Lai Pui Man , Vaitkevicius Henrikas , Du Rose 
Published: April 2021

AbstractBackgroundThe presence of angiographic vasospasm after aneurysmal subarachnoid hemorrhage (aSAH) is associated with delayed-cerebral ischemia (DCI)-related cerebral infarction and worsened neurological outcome. Transcranial doppler (TCD) measurements of cerebral blood velocity are commonly used after aSAH to screen for vasospasm. We sought to determine whether time-varying TCD measured vasospasm severity is associated with cerebral infarction and to investigate the performance characteristics of different time/severity cutoffs for predicting cerebral infarction.MethodsWe used a retrospective, single-center cohort of consecutive adult aSAH patients with angiographic vasospasm and at least one TCD study. Our primary outcome was DCI-related cerebral infarction, defined as an infarction developing at least 2 days after any surgical intervention without an alternative cause. Time-varying TCD vasospasm severity was defined ordinally (absent, mild, moderate, severe) by the most abnormal vessel on each post-admission hospital day. Cox proportional-hazards models were used to examine associations between time-varying vasospasm severity and infarction. The optimal TCD-based time/severity thresholds for predicting infarction were then identified using the Youden J statistic.ResultsOf 218 aSAH patients with angiographic vasospasm, 27 (12%) developed DCI-related infarction. As compared to those without infarction, patients with infarction had higher modified Fisher scale (mFS) scores, and an earlier onset of more-severe vasospasm. Adjusted for mFS, vasospasm severity was associated with infarction (aHR 1.9, 95% CI: 1.3-2.6). A threshold of at least mild vasospasm severity on hospital day 4 had a negative predictive value of 92% for the development of infarction, but a positive predictive value of 25%.ConclusionsIn aSAH, TCD-measured vasospasm severity is associated with DCI-related infarction. In a single-center dataset, a TCD-based threshold for predicting infarction had a high negative predictive value, supporting its role as an early screening tool to identify at-risk patients.
A Multicenter Evaluation of Blood Purification with Seraph 100 Microbind Affinity Blood Filter for the Treatment of Severe COVID-19: A Preliminary Report
Authors: Chitty Stephen A. , Mobbs Sarah , Rifkin Brian S. , Stogner Steven W. , Lewis Michael S. , Betancourt Jaime , DellaVolpe Jeffrey , Abouzahr Fadi , Wilhelm Andrew M. , Szerlip Harold M. , Gaeta Robert M. , Rivera Ian , Oliver James D. , Olson Stephen W. , Debnath Subrata , Barnett Sean P. , Parikh Amay , Walter Robert J. , Nguyen Mai T. , Sullivan Breandan , Alcover Karl C. , Stewart Ian J. , Pratt Kathleen P. , Sharma Kumar , Chung Kevin K. ,   for the PURIFY INVESTIGATORS
Published: April 2021

ObjectiveThe Seraph®100 Microbind Affinity Blood Filter® (Seraph 100) is an extracorporeal medical countermeasure that can remove many pathogens from blood, including the SARS-CoV-2 virus. The aim of this study was to evaluate safety and efficacy of Seraph 100 treatment for severe coronavirus disease 2019 (COVID-19).DesignMulticenter retrospective observational cohort study.SettingIntensive care units across four of thirteen participating sites who have completed data extraction.PatientsCritically ill COVID-19 patients treated with Seraph 100 under an Emergency Use Authorization (n=53) and historical control patients who met criteria for treatment (n=46).InterventionExtracorporeal treatment with the Seraph 100 filter.Measurements and Main ResultsAt baseline, the median age was 61 years, 72.7% were male, and 59.6% required mechanical ventilation. The groups were matched in terms of sex, race/ethnicity, body mass index, APACHE II score, need for mechanical ventilation, and other COVID-19 treatments. However, patients in the Seraph 100 group were younger with a median age of 61 years (IQR 42-65) compared to controls who had a median age of 64 (IQR 56-68, p=0.036). The Seraph 100 group also had a lower median Charlson comorbidity index (2, IQR 0-3) compared to control patients (3, IQR 2-4, p=0.006). Mortality was lower in the Seraph 100 treated group compared to the historical controls (37.7% vs 67.4%, respectively, p=0.003). Multivariable logistic regression analysis yielded an odds ratio of 0.27 (95% confidence interval 0.09-0.79, p=0.016). Of the 53 patients treated with Seraph 100, only 1 patient experienced a serious adverse event (transient hypotension at the start of the treatment which required a brief period of vasopressor support).ConclusionsThese data suggest that broad spectrum, pathogen agnostic, extracorporeal blood purification technologies can be safely and effectively deployed to meet new pathogen threats as an adjunct to standard treatments while awaiting the development of directed pharmacologic therapies and/or vaccines.
Systematic review of the association between ABO blood type and COVID-19 incidence and mortality
Authors: Bai Yuqing , Yan Zhou , Murray Eleanor J 
Published: April 2021

AbstractA large proportion of COVID-19 research has been focused on identifying markers of high-risk individuals. However, this research often fails to consider basic epidemiologic concepts to prevent bias in the design, selection, and analysis of observational data. One suspected marker of risk that has been repeatedly assessed is ABO blood type. Given the ease of measuring this biomarker, it is an appealing target for identifying high-risk individuals. However, this same ease of measurement makes associational research on ABO blood type and COVID prone to a range of common epidemiologic errors. We conducted a systematic review of studies assessing correlations between ABO blood type and COVID incidence, hospitalization, and mortality to determine the quality of evidence these studies provide and whether the overall evidence suggests ABO blood type could provide a useful indicator of COVID risk. We conclude that most existing studies are low quality and suffer from major methodological flaws. The few higher-quality studies which do exist find no association between ABO blood type and COVID outcomes. We conclude that there is no evidence to support the use of ABO blood type as a marker for COVID risk or severity.Key PointsThere is no sufficient evidence to conclude a biological relationship between ABO blood types and COVID-19 infection or severity.Biases of existing research could be avoided by careful study design.
Shut Down Schools, Knock Down the Virus? No Causal Effect of School Closures on the Spread of COVID-19
Authors: Fukumoto Kentaro , McClean Charles T. , Nakagawa Kuninori 
Published: April 2021

AbstractAs COVID-19 spread in 2020, most countries shut down schools in the hopes of slowing the pandemic. Yet, studies have not reached a consensus about the effectiveness of these policies partly because they lack rigorous causal inference. Our study aims to estimate the causal effects of school closures on the number of confirmed cases. To do so, we apply matching methods to municipal-level data in Japan. We do not find that school closures caused a reduction in the spread of the coronavirus. Our results suggest that policies on school closures should be reexamined given the potential negative consequences for children and parents.
Dual Adhesive Unipolar Polysaccharides Synthesized by Overlapping Biosynthetic Pathways inAgrobacterium tumefaciens
Authors: Onyeziri Maureen C. , Natarajan Ramya , Hardy Gail G. , Xu Jing , Reynolds Ian P. , Kim Jinwoo , Merritt Peter M. , Danhorn Thomas , Hibbing Michael E. , Weisberg Alexandra J. , Chang Jeff H. , Fuqua Clay 
Published: April 2021

SummaryAgrobacterium tumefaciens, is a member of the Alphaproteobacteria that pathogenizes plants, and associates with biotic and abiotic surfaces via a single cellular pole.A. tumefaciensproduces the unipolar polysaccharide (UPP) at the site of surface contact. UPP production is normally surface-contact inducible, but elevated levels of the second messenger cyclic diguanylate monophosphate (cdGMP) bypass this requirement. Multiple lines of evidence suggest that the UPP has a central polysaccharide component. Using anA. tumefaciensderivative with elevated cdGMP and mutationally disabled for other dispensable polysaccharides, a series of related genetic screens have identified a large number of genes involved in UPP biosynthesis, most of which are Wzx-Wzy-type polysaccharide biosynthetic components. Extensive analyses of UPP production in these mutants have revealed that the UPP is comprised of two genetically, chemically and spatially discrete forms of polysaccharide, and that each requires a specific Wzy-type polymerase. Other important biosynthetic, processing and regulatory functions for UPP production are also revealed, some of which are common to both polysaccharides, and a subset of which are specific to each species. Many of the UPP genes identified are conserved among diverse rhizobia, whereas others are more lineage specific.Plain language summaryBacteria attach to a wide variety of surfaces including host tissues, via externalized structures described as adhesins. We define a large set of genes involved in synthesis of a complex unipolar adhesin comprised of two distinct polysaccharides, that is required for surface attachment by the plant-associated pathogenAgrobacterium tumefaciens.