bluuebunny/crossref_metadata_2025_split huggingface dataset:
Self-assembly synthesis of diorganotin complexes based on arylformylhydrazone possessing ONO donor set: anticancer activity and mechanism
Authors: Jiang Wujiu , Zhang Zhijian , Ni Penghui , Tan Yuxing 
Published: March 2022

Abstract
Fourteen new organotin(IV) complexes were successfully synthesized and characterized by elemental analyses, Fourier transform infrared spectroscopy (FT-IR), multinuclear (1H, 13C, and 119Sn) NMR spectroscopy, high-resolution mass spectrometry (HRMS), and X-ray single-crystal techniques. Crystallographic data showed that the complexes 1b, 2b, 3b, and 5b were macrocyclic compounds, 4b exhibited a one-dimensional spiral chain structure with distorted trigonal bipyramidal geometry, other complexes were centrosymmetric dimers, and there was an Sn2O2 four-membered ring in the middle of the molecule. In-vitro anticancer activity against the three human tumor cell lines NCI-H460, MCF-7, and HepG2 was studied, and the dibutyltin complex 5a is a more potent antitumor agent than other complexes and cisplatin. Cell apoptosis study of 5a with the highest activity on HepG2 cancer cell lines was done by flow cytometry; it was shown that the antitumor activity of 5a was related to apoptosis, and it inhibited proliferation by blocking cells in the G2/M phase. The single-cell gel electrophoresis assay results show that 5a induces DNA damage. 5a interacts with ct-DNA by intercalating the mode of interaction. UV–visible absorption spectrometry, fluorescence competitive, viscosity measurements, and gel electrophoresis results also support the intercalative mode of interaction for 5a with DNA.
APYRASE1/2 mediate red light-induced de-etiolation growth in Arabidopsis seedlings
Authors: Weeraratne Gayani , Wang Huan , Weeraratne Tharindu P , Sabharwal Tanya , Jiang Han-Wei , Cantero Araceli , Clark Greg , Roux Stanley J 
Published: March 2022

Abstract
In etiolated seedlings, red light (R) activates phytochrome and initiates signals that generate major changes at molecular and physiological levels. These changes include inhibition of hypocotyl growth and promotion of the growth of primary roots, apical hooks, and cotyledons. An earlier report showed that the sharp decrease in hypocotyl growth rapidly induced by R was accompanied by an equally rapid decrease in the transcript and protein levels of two closely related apyrases (APYs; nucleoside triphosphate-diphosphohydrolases) in Arabidopsis (Arabidopsis thaliana), APY1 and APY2, enzymes whose expression alters auxin transport and growth in seedlings. Here, we report that single knockouts of either APY inhibit R-induced promotion of the growth of primary roots, apical hooks, and cotyledons, and RNAi-induced suppression of APY1 expression in the background of apy2 inhibits R-induced apical hook opening. When R-irradiated primary roots and apical hook-cotyledons began to show a gradual increase in their growth relative to dark controls, they concurrently showed increased levels of APY protein, but in hook-cotyledon tissue, this occurred without parallel increases in their transcripts. In wild-type seedlings whose root growth is suppressed by the photosynthesis inhibitor 3-(3,4-dichlorophenyl)-1,1-dimethylurea, the R-induced increased APY expression in roots was also inhibited. In unirradiated plants, the constitutive expression of APY2 promoted both hook opening and changes in the transcript abundance of Small Auxin Upregulated RNA (SAUR), SAUR17 and SAUR50 that help mediate de-etiolation. These results provide evidence that the expression of APY1/APY2 is regulated by R and that APY1/APY2 participate in the signaling pathway by which phytochrome induces differential growth changes in different tissues of etiolated seedlings.
The moving crude adiabatic alternative to the adiabatic representation in excited state dynamics
Authors: Maskri Rosa , Joubert-Doriol Loïc 
Published: March 2022

The choice of the electronic representation in on-the-fly quantum dynamics is crucial. The adiabatic representation is appealing since adiabatic states are readily available from quantum chemistry packages. The nuclear wavepackets are then expanded in a basis of Gaussian functions, which follow trajectories to explore the potential energy surfaces and approximate the potential using a local expansion of the adiabatic quantities. Nevertheless, the adiabatic representation is plagued with severe limitations when conical intersections are involved: the diagonal Born–Oppenheimer corrections (DBOCs) are non-integrable, and the geometric phase effect on the nuclear wavepackets cannot be accounted for unless a model is available. To circumvent these difficulties, the moving crude adiabatic (MCA) representation was proposed and successfully tested in low energy dynamics where the wavepacket skirts the conical intersection. We assess the MCA representation in the case of non-adiabatic transitions through conical intersections. First, we show that using a Gaussian basis in the adiabatic representation indeed exhibits the aforementioned difficulties with a special emphasis on the possibility to regularize the DBOC terms. Then, we show that MCA is indeed able to properly model non-adiabatic transitions. Tests are done on linear vibronic coupling models for the bis(methylene) adamantyl cation and the butatriene cation.
This article is part of the theme issue ‘Chemistry without the Born–Oppenheimer approximation’.
Rv0233 is not essential for the survival of Mycobacterium tuberculosis in stress conditions
Authors: Ikeh Melanie A. , Parish Tanya 
Published: March 2022

AbstractMycobacterium tuberculosis is an important global pathogen. We were interested in understanding the role of Rv0233, a proposed subunit of the class IB ribonucleotide reductase. We constructed an in-frame, unmarked deletion strain of M. tuberculosis and characterized its growth and survival under replicating and non-replicating conditions. We confirmed previous studies that Rv0233 is not essential for aerobic growth or survival in the presence of nitrite. We demonstrate that the deletion of Rv0233 does not affect susceptibility to frontline tuberculosis drugs or hydrogen peroxide. The deletion strain survived equally well under nutrient starvation or in hypoxia and was not attenuated for growth in macrophages.
Optimized production and fluorescent labelling of SARS-CoV-2 Virus-Like-Particles to study virus assembly and entry
Authors: Gourdelier Manon , Swain Jitendriya , Arone Coline , Mouttou Anita , Bracquemond David , Merida Peggy , Saffarian Saveez , Lyonnais Sébastien , Favard Cyril , Muriaux Delphine 
Published: March 2022

ABSTRACTSARS-CoV-2 is an RNA enveloped virus responsible for the COVID-19 pandemia that conducted in 6 million deaths worldwide so far. SARS-CoV-2 particles are mainly composed of the 4 main structural proteins M, N, E and S to form 100nm diameter viral particles. Based on productive assays, we propose an optimal transfected plasmid ratio mimicking the virus RNA ratio allowing SARS-CoV-2 Virus-Like Particle (VLPs) formation composed of the viral structural proteins M, N, E and S. Furthermore, monochrome, dual-color fluorescent or photoconvertible VLPs were produced. Thanks to live fluorescence and super-resolution microscopy, we quantified VLPs size and concentration. It shows a diameter of 110 and 140 nm respectively for MNE-VLPs and MNES-VLPs with a minimum concentration of 10e12 VLP/ml. SARS-CoV-2 VLPs could tolerate the integration of fluorescent N and M tagged proteins without impairing particle assembly. In this condition, we were able to establish incorporation of the mature Spike in fluorescent VLPs. The Spike functionality was then shown by monitoring fluorescent MNES-VLPs docking and endocytosis in human pulmonary cells expressing the receptor hACE2. This work provides new insights on the use of non-fluorescent and fluorescent VLPs to study and visualize the SARS-CoV-2 viral life cycle in a safe environment (BSL-2 instead of BSL-3). Moreover, optimized SARS-CoV-2 VLP production can be further adapted to vaccine design strategies.
Blood-derived DNA methylation clusters associate with adverse social exposures and endophenotypes of stress-related psychiatric illness in a trauma-exposed cohort of women
Authors: Pfeiffer JR , van Rooij Sanne J.H. , Mekawi Yara , Fani Negar , Jovanovic Tanja , Michopoulos Vasiliki , Smith Alicia K. , Stevens Jennifer S. , Uddin Monica 
Published: March 2022

AbstractAdverse social exposures (ASEs) such as low income, low educational attainment, and childhood/adult trauma exposure are associated with variability in brain region measurements of grey matter volume (GMV), surface area (SA), and cortical thickness (CT). These CNS morphometries are associated with stress-related psychiatric illnesses and represent endophenotypes of stress-related psychiatric illness development. Epigenetic mechanisms, such as 5-methyl-cytosine (5mC), may contribute to the biological embedding of the environment but are understudied and not well understood. How 5mC relates to CNS endophenotypes of psychiatric illness is also unclear.In 97 female, African American, trauma-exposed participants from the Grady Trauma Project, we examined the associations of childhood trauma burden (CTQ), adult trauma burden, low income and low education with blood-derived 5mC clusters and variability in brain region measurements in the amygdala, hippocampus and frontal cortex subregions. To elucidate whether peripheral 5mC indexes CNS endophenotypes of psychiatric illness, we tested whether 73 brain/blood correlated 5mC clusters, defined by networks of correlated 5mC probes measured on Illumina’s HumanMethylation Epic Beadchip, mediated the relationship between ASEs and brain measurements.CTQ was negatively associated with rostral middle frontal gyrus (RMFG) SA (β = - 0.231, p = 0.041). Low income and low education were also associated with SA or CT in a number of brain regions. Seven 5mC clusters were associated with CTQ (pmin = 0.002), two with low education (pmin = 0.010), and three with low income (pmin = 0.007). Two clusters fully mediated the relation between CTQ and RMFG SA, accounting for 47% and 35% of variability respectively. These clusters were enriched for probes falling in DNA regulatory regions, as well as signal transduction and immune signaling gene ontology functions. Methylome-network analyses showed enrichment of macrophage migration (p = 9×10-8), T cell receptor complex (p = 6×10-6), and chemokine-mediated signaling (p = 7×10-4) pathway enrichment in association with CTQ.Our results support prior work highlighting brain region variability associated with ASEs, while informing a peripheral inflammation-based epigenetic mechanism of biological embedding of such exposures. These findings could also serve to potentiate increased investigation of understudied populations at elevated risk for stress-related psychiatric illness development.
DNA Methylation Dynamics and Dysregulation Delineated by High-Throughput Profiling in the Mouse
Authors: Zhou Wanding , Hinoue Toshinori , Barnes Bret , Mitchell Owen , Iqbal Waleed , Lee Sol Moe , Foy Kelly K. , Lee Kwang-Ho , Moyer Ethan J. , VanderArk Alexandra , Koeman Julie M. , Ding Wubin , Kalkat Manpreet , Spix Nathan J. , Eagleson Bryn , Pospisilik John Andrew , Szabó Piroska E. , Bartolomei Marisa S. , Vander Schaaf Nicole A. , Kang Liang , Wiseman Ashley K. , Jones Peter A. , Krawczyk Connie M. , Adams Marie , Porecha Rishi , Chen Brian H. , Shen Hui , Laird Peter W. 
Published: March 2022

SUMMARYWe have developed a mouse Infinium DNA methylation array that contains 297,415 probes to capture the diversity of mouse DNA methylation biology. We present a mouse DNA methylation atlas as a rich reference resource of 1,239 DNA samples encompassing distinct tissues, strains, age, sex, and pathologies. We describe applications for comparative epigenomics, genomic imprinting, epigenetic inhibitors, PDX assessment, backcross tracing, and epigenetic clocks. We dissect DNA methylation processes associated with differentiation, aging and tumorigenesis. Notably, we find that tissue-specific methylation signatures localize to binding sites for transcription factors controlling the corresponding tissue development. Age-associated hypermethylation is enriched at regions of Polycomb repression, while hypomethylation is enhanced at regions bound by cohesin complex members. ApcMin/+ polyp-associated hypermethylation affects enhancers regulating intestinal differentiation, while hypomethylation targets AP-1 binding sites. This MM285 mouse array is widely accessible to the research community, and will accelerate future high sample-throughput studies in this important model organism.
Single-agent Foxo1 inhibition normalizes glycemia and induces gut β-like cells in streptozotocin-diabetic mice
Authors: Lee Yun-Kyoung , Nie Yaohui , Diaz Bryan , Sultana Nishat , Kitamoto Takumi , Du Wen , Leibel Rudolph L. , Accili Domenico , Belvedere Sandro 
Published: March 2022

AbstractInsulin treatment remains the sole effective intervention for Type 1 Diabetes. Here, we investigated the therapeutic potential of converting intestinal epithelial cells to insulin-producing, glucose-responsive β-like cells by targeted inhibition of Foxo1. We have shown that this can be achieved by genetic ablation in gut Neurogenin3 progenitors, adenoviral or shRNA-mediated inhibition in human gut organoids, and chemical inhibition in Akita mice, a model of insulin-deficient diabetes. In the present study, we provide evidence that two novel Foxo1 inhibitors, FBT432 and FBT374 have glucose-lowering and gut β-like cell-inducing properties in mice rendered insulin-deficient by administration of streptozotocin. FBT432 is also highly effective in combination with a Notch inhibitor in this model. The data add to a growing body of evidence suggesting that Foxo1 inhibition be pursued as an alternative treatment to insulin administration in diabetes.
Social commerce adoption: a study on consumer's online purchase behaviour of perishable pastry products
Authors: Rahman Faradewi Bee A. , Hanafiah Mohd Hafiz , Zahari Mohd Salehuddin Mohd , Jipiu Lovelyna Benedict 
Published: March 2022

PurposeThis study investigates the relationship between social commerce adoption determinants, perceived trust and purchase behaviour among pastry product consumers.Design/methodology/approachThe research data were collected using a five-point Likert from 409 pastry consumers through an online survey. Partial least square-structural equation modelling (PLS-SEM) was utilised to test the study model and hypotheses.FindingsThe study findings indicate that pastry consumers perceived social commerce as effortless, engaging, enjoyable, can be trusted, simple to use and time-saving, motivating them to consume pastry products via social commerce platforms.Practical implicationsThis study provides insights and implications for social commerce researchers and marketers related explicitly to perishable products.Originality/valueThis study is one of the few studies that predict and explain the consumer acceptance of social commerce in the pastry products realm. As only a handful of research has endeavoured to research social commerce, this study findings contribute to the conceptualisation of technology acceptance theory by understanding the determinants of social commerce adoption among consumers.
Impact of corporate governance and institutional context on multilatinas’ reporting quality
Authors: Correa-Mejía Diego Andrés 
Published: March 2022

Purpose
This study aims to identify the impacts of corporate governance (CG) and institutional context on multilatinas’ corporate reporting quality (CRQ). CG and institutional context facilitate the reduction of agency problems and the existence of accountability processes that minimize information asymmetries.

Design/methodology/approach
A panel data model was developed from a sample of 77 multilatinas studied during the 2014–2020 period. Different estimations were carried out through the panel data model to identify the impact of CG and institutional context on CRQ.

Findings
It is evidenced that appropriate CG structure has a positive impact on multilatinas’ CRQ. In addition, each country’s regulatory quality is confirmed to have a positive effect on firms to produce higher-quality reports.

Practical implications
This research provides empirical support to what is put forward by agency and stakeholder theory regarding the role that CG and institutional context play in reducing information asymmetries and improving accountability processes to all stakeholders in the Latin American context.

Originality/value
This study contributes original results to the existing literature. Unlike previous works, the present research analyzed multilatinas facing social and political contexts that differ from those of multinationals from developed countries. Different ways of reporting were also covered, going beyond traditional ways of evaluating CRQ – which generally take the sustainability report as a basis.
Design and test of an open portable MRI system
Authors: Chauviere Simon , Belguerras Lamia , Lubin Thierry , Mezani Smail 
Published: March 2022

Purpose
The purpose of this paper is the design study and realisation of portable low-field open MRI system.

Design/methodology/approach
The design of the magnetic resonance imaging (MRI) system is based on an optimization study using a genetic algorithm. Non-linear two-dimensional and three-dimensional numerical electromagnetic models are developed and inserted in the optimization environment.

Findings
The results are found to be consistent with those issued from fully experimental tests. The static field produced by the device is 0.295 T with a homogeneity of 2.8% (28,000 ppm) over 100 mm diameter sphere volume. The z-axis gradient coils are capable of generating switching gradients with an amplitude of 8 mT/m and a frequency of 1.2 kHz.

Originality/value
Our system is an open portable MRI which can be used in an ambulance. The open topology permits an easy access into the lateral sides when a surgery using surgical instrument with video feedback is needed.
An Exploration of the Aberrant Perceptions Experienced by Westerners in the Peruvian Amazon Amid Shipibo Ayahuasca Practices
Authors: Dudek Agnes 
Published: March 2022

ABSTRACTAyahuasca has become a subject of great interest in recent years. Academics, spiritual seekers, communities, and curious individuals have all been intrigued by this topic through either writing about it or direct participation in the contemporary spiritual phenomenon that is ayahuasca, which holds promises of bestowing upon its users profound wisdom or healing. However, what anthropological (but also popular) writings barely comment on are the deviant perceptions that arise out of experiences seeking amelioration or transcendence, and the subjective ways in which those experiences are interpreted. Consequently, I wish to supplement this scope of representation. In this text, I present fieldwork conducted in the Peruvian Amazon amid the Shipibo, focusing on the experiences of the spiritual seekers who came to them in search of healing or self‐discovery. I discovered a unique contradiction—participation in Shipibo ayahuasca practices while simultaneously having or developing a negative perception or attitude towards it. These aberrances are held, as I argue herein, (incognizantly) in the expressed attitudes of the Westerners (especially North American and European) as a result of the positivist notions that emerged from the Age of Enlightenment (but are not limited to it). My priority in this article is to present and expound on these atypical associations and place them against a historical (Western) background to elucidate the origin of the thus found and experienced perceptions.
Barriers and facilitators to dental care among culturally and linguistically diverse carers: A mixed‐methods systematic review
Authors: Marcus Kanchan , Balasubramanian Madhan , Short Stephanie , Sohn Woosung 
Published: March 2022

AbstractObjectivesCulturally and linguistically diverse (CALD) communities experience widespread inequalities in dental care utilization. While, several studies have reported factors contributing to such inequalities, a synthesis of evidence is lacking for CALD carers. This review examined the barriers and facilitators to dental care utilization among CALD carers.MethodsMedline, CINAHL, ProQuest, Scopus and Web of Science were searched for dental utilization and related factors, without geographic limitations. An integrated mixed‐method design was adopted, where both qualitative and quantitative findings were combined into a single synthesis. Critical appraisal was conducted using JBI tools, and a Universal Health Coverage (UHC) framework guided the synthesis approach. Reliability and researcher triangulation occurred throughout the conduct of this review.ResultsA total of 20 papers were included: qualitative (n = 8), quantitative (n = 8) and mixed method (n = 4). Studies were from Australia, Canada, South Korea, Trinidad and Tobago, United Kingdom and the United States. Three studies insufficiently reported confounding variables and nine qualitative papers lacked philosophical perspectives. Affordability was the foremost barrier at the system level, followed by psychosocial negative provider experiences and language/communication issues at the provider level. Cultural, knowledge, attitudes and beliefs were individual‐family level factors. Utilizing a UHC framework, the barriers and facilitators were aggregated at three levels; financial‐system, provider and individual‐family levels and illustrated in the rainbow model of CALD oral health.ConclusionThe review strengthens evidence for multilayered, system‐related policies and culturally sensitive provision of services for reducing oral healthcare inequalities in CALD carers.
Reproductive homing and fine‐scaled genetic structuring of anadromous Baltic Sea perch (Perca fluviatilis)
Authors: Hall Marcus , Koch‐Schmidt Per , Larsson Per , Tibblin Petter , Yıldırım Yeşerin , Sunde Johanna 
Published: March 2022

AbstractTo investigate the population dynamics of anadromous Baltic Sea perch Perca fluviatilis (Linnaeus), we studied the migratory behaviour (arrival to spawning location) and population structure (genetic structure and differentiation) of three closely located (<50 km) populations. Spawning migration lasted for 32–80 days, and passive integrated transponder tag (PIT‐tag) data indicated that anadromous perch displayed reproductive homing. Populations were differentiated, despite low levels of gene flow (3%–5%), and differentiation increased with increasing geographic distance. This fine‐scaled spatial structuring was likely, at least partly, explained by homing behaviour. Analyses of temporal within‐stream substructuring yielded inconclusive results, so further studies are required to evaluate this. Taken together, our findings highlight the potential for fine‐scaled genetic structuring in anadromous perch and indicate that multiple mechanisms, such as isolation by distance, homing, and reproductive timing could contribute to this pattern. This illustrates the importance of considering cryptic barriers to accurately identify reproductive units, and points to the need for local management of anadromous perch.