bluuebunny/crossref_metadata_2025 huggingface dataset:
Tinder: A Game with Gendered Rules and Consequences
Authors: Berkowitz Dana , Tinkler Justine , Peck Alana , Coto Lynnette
Published: May 2021

The popularity of Mobile Dating Applications has increased in recent years, with Tinder transforming the dating landscape for college students. Drawing upon 249 peer-facilitated interviews with college-age men and women, we explore how this population uses Tinder. Informed by social-psychological theory and research on impression management and stereotyping, we show how Tinder’s marketing strategy and game-like platform appeal to college students’ desires to reduce uncertainty and risk in forming romantic and intimate connections. However, by upending existing interaction norms, the Tinder environment creates new forms of ambiguity, which, in turn, incentivizes conformity to traditional heterogender norms and encourages racist and classist swiping behavior. Our study advances the literature on inequality and intimate marketplaces by generating insight about how contemporary dating and sexual scripts are constructed, accomplished, and negotiated when new technologies disrupt established patterns of interaction.
Any Effective Intervention to Improve CPAP Adherence in Children with Obstructive Sleep Apnea: A Systematic Review
Authors: Sawunyavisuth Bundit , Ngamjarus Chetta , Sawanyawisuth Kittisak
Published: May 2021

Obstructive sleep apnea (OSA) in children is leading to several consequences as reported in adults. A continuous positive airway pressure (CPAP) machine is one of the effective treatments in pediatric OSA. However, the CPAP adherence rate is approximately 50%. This study aimed to evaluate if any interventions that improve CPAP adherence in pediatric patients with OSA using a systematic review. We included intervention studies on CPAP adherence in pediatric patients with OSA regardless of machine types. Five databases were used for article searching. Search terms included OSA, adherence, compliance, and CPAP. The outcomes of this study were adherence rate and usage hours/minutes. The outcomes were compared between the intervention and comparator groups with descriptive statistics. There were 2931 articles from 5-database searching. There were 41 articles related with children. There were 7 articles conducted with any intervention on CPAP compliance. Of those, 4 studies included in the analysis. There were 3 significant differences between both groups in 2 studies. Those with caregiver support had significantly longer CPAP use/night by 86.60 minutes (95% CI 10.90, 162.30) and percentage of CPAP usage more than 4 hours/night by 18.10% (95% CI 3.87, 32.33) than those without caregiver support. Those who received BPAP therapy had higher chance of good PAP adherence than those who received CPAP by 18.17 times (95% CI 5.19, 63.70). Caregiver support and BPAP therapy significantly improved CPAP adherence in children with OSA. Further studies are required to add additional comparisons and also other interventions.
Improving Shared Decision Making in Latino Men With Prostate Cancer: A Thematic Analysis
Authors: Michel Joaquin , Ballon Jorge , Connor Sarah E. , Johnson David C. , Bergman Jonathan , Saigal Christopher S. , Litwin Mark S. , Alden Dana L.
Published: May 2021

Background. Multiple studies have shown that digitally mediated decision aids help prepare patients for medical decision making with their providers. However, few studies have investigated whether decision-support preferences differ between non-English-speaking and English-speaking Latino men with limited literacy. Objective. To identify and compare health information seeking patterns, preferences for information presentation, and interest in digital decision aids in a sample of Southern Californian underserved Latino men with newly diagnosed prostate cancer at a county hospital. Methods. We conducted semistructured, in-depth telephone interviews with 12 Spanish-speaking and 8 English-speaking Latino men using a purposive sampling technique. Following transcription of taped interviews, Spanish interviews were translated. Using a coding protocol developed by the team, two bilingual members jointly analyzed the transcripts for emerging themes. Coder agreement exceeded 80%. Differences were resolved through discussion. Results. Thematic differences between groups with different preferred languages emerged. Most respondents engaged in online health information seeking using cellphones, perceived a paternalistic patient-provider relationship, and expressed willingness to use hypothetical digital decision aids if recommended by their provider. English speakers reported higher digital technology proficiency for health-related searches. They also more frequently indicated family involvement in digital search related to their condition and preferred self-guided, web-based decision aids. In comparison, Spanish speakers reported lower digital technology proficiency and preferred family-involved, coach-guided, paper and visual decision aids. English speakers reported substantially higher levels of formal education. Conclusion. Preferences regarding the use of digital technology to inform prostate cancer treatment decision making among underserved Latino men varied depending on preferred primary language. Effective preparation of underserved Latino men for shared decision making requires consideration of alternative approaches depending on level of education attainment and preferred primary language.
Rhythmanalysis: Rethinking the politics of everyday negotiations in ordinary public spaces
Authors: Gibert-Flutre Marie
Published: May 2021

The nature of everyday life in metropolitan public spaces is an unprecedented entanglement of activities, emerging from the presence of multiple actors competing for a limited space. Making sense of this complexity is a longstanding challenge in the social sciences: how can such a mesmerizing ‘urban ballet’ be explained in the absence of overall orchestration? I hypothesize thatthis urban rhythm – the temporal alternation of activities in the public spaces of a city – is not neutral, but reveals entrenched power relations which are renegotiated and reaffirmed on a daily basis. Building on the notion of rhythmanalysis, I develop a methodology combining a visual timeline called ‘urban tempo’ with in-depth interviews. I present a case study of a market in pericentral Ho Chi Minh City (Vietnam), where local actors negotiate access to more or less valuable time slots and spaces throughout the day. I show that such negotiations pertaining to time result in a very practical sense in the production of ordinary public spaces. The findings reveal four types of actors, classified according to their negotiating power. Broadly, the rhythmanalysis presented here reiterates our understanding of power as relational, highlighting the unequal conditions of negotiations in public spaces at a micro-level. By adding a temporal dimension to the politics of the everyday, it also opens up a promising research agenda, inviting comparisons of ‘time-sharing regimes’ across metropolitan contexts.
Ecotourism’s ethics: Self-organization and care in urban Guyana
Authors: Vaughn Sarah Elizabeth
Published: May 2021

In this article, I shed light on the ethical orientations of people who labour and invest in ecotourism, and the conditions through which ecotourism becomes recognizable as a neoliberal practice. I reveal that what distinguishes ecotourism is not merely its arrangements for the commodification of nature and related scientific enterprises. Instead, ecotourism depends in part on how people live with environmental degradation and the flexible ways in which they relate ideas of care to such lived experiences. Drawing on research conducted in urban Guyana, the article lays out people’s struggles to plan for mangrove tourism despite the presence of garbage and the threat of erosion to forests. In so doing, I illustrate that ecotourism expresses itself through self-organizing processes and therefore, is dialectically intertwined with sociopolitical strategies of care and its distribution.
Vagus Nerve Stimulation Ameliorates Cognitive Impairment and Increased Hippocampal Astrocytes in a Mouse Model of Gulf War Illness
Authors: Venkatasamy Lavanya , Nizamutdinov Damir , Jenkins Jaclyn , Shapiro Lee A
Published: May 2021

Gulf war illness (GWI), is a chronic multi-symptom illness that has impacted approximately one-third of the veterans who served in the 1990 to 1991 Gulf War. GWI symptoms include cognitive impairments (eg, memory and concentration problems), headaches, migraines, fatigue, gastrointestinal and respiratory issues, as well as emotional deficits. The exposure to neurological chemicals such as the anti-nerve gas drug, pyridostigmine bromide (PB), and the insecticide permethrin (PER), may contribute to the etiologically related factors of GWI. Various studies utilizing mouse models of GWI have reported the interplay of these chemical agents in increasing neuroinflammation and cognitive dysfunction. Astrocytes are involved in the secretion of neuroinflammatory cytokines and chemokines in pathological conditions and have been implicated in GWI symptomology. We hypothesized that exposure to PB and PER causes lasting changes to hippocampal astrocytes, concurrent with chronic cognitive deficits that can be reversed by cervical vagus nerve stimulation (VNS). GWI was induced in CD1 mice by injecting the mixture of PER (200 mg/kg) and PB (2 mg/kg), i.p. for 10 consecutive days. VNS stimulators were implanted at 33 weeks after GWI induction. The results show age-related cognitive alterations at approximately 9 months after exposure to PB and PER. The results also showed an increased number of GFAP-labeled astrocytes in the hippocampus and dentate gyrus that was ameliorated by VNS.
Examining the overlap of young people’s early contact with the police as a person of interest and victim or witness
Authors: Athanassiou Ulrika , Whitten Tyson , Tzoumakis Stacy , Hindmarsh Gabrielle , Laurens Kristin R , Harris Felicity , Carr Vaughan J , Green Melissa J , Dean Kimberlie
Published: May 2021

There is known to be considerable overlap among the victims and perpetrators of crime. However, the extent of this overlap early in life among children and young adolescents is not clear. We examined the sociodemographic profiles of young people who had early contact with police regarding a criminal incident as a person of interest, victim and/or witness, as well as the patterns of multiple police contact types from birth to 13 years of age. Data were drawn from a longitudinal, population-based sample of 91,631 young people from New South Wales, Australia. Among the 10.6% (n = 9677) of young people who had contact with police, 14.4% (n = 1393) had contact as a person of interest and as a victim and/or witness on two or more separate occasions. The most common first contact type was as a victim/witness, but those children with a first contact as a person of interest were most likely to have at least one further contact. Young people with both types of police contact were younger at first police contact, were more likely to reside in a socioeconomically disadvantaged area, and to be recorded as having an Aboriginal and/or Torres Strait Islander background. Our findings demonstrate that, by 13 years of age, 1 in 10 young people had been in early contact with police and that a minority have contact with the police as both a person of interest and a victim/witness. These young people may represent a particularly disadvantaged group in the community who are likely to be at risk of future adversity, including repeated contact with the criminal justice system.
The life-course of methamphetamine users in Aotearoa/New Zealand: School, friendship and work
Authors: Bax Trent
Published: May 2021

As part of the first qualitative-based research on the life-course of methamphetamine users in Aotearoa/New Zealand, this paper analyses the life domains of school, friendship and work. Through application of interactional theory, this paper increases understanding of the situational contexts and interpersonal factors that influence drug use trajectories and the transition from one life domain to another by identifying the patterns within each domain and the influence school, friendship and work exerts on drug use and, conversely, how drug use impacts on school, friendship and work. The analysis discovered 20 commonly shared adverse experiences that hindered educational and employment success and contributed to drug use, including: negative school transitions, significant turning point events, weak commitment to school, poor school attitude and performance, low academic achievement, low school and work ambition, low parental expectations, and high levels of mental health issues, delinquency, delinquent peer involvement, bullying victimisation, work victimisation, unstable careers and illegal economic activities. Specifically, it was common for interviewees to ‘track backwards’ in high school. This study highlights the importance of the educational domain for altering drug use trajectories, especially high school.
Smart materials for changing the electrical properties of nanostructures
Authors: Abbas Mohamed
Published: May 2021

Smart materials have an important role in modern applications. They have contributed to improving various applications in several fields. One of the areas most affected by the improvement of smart materials is nanostructures. These materials are created by basic techniques, such as arrangement manipulation. Significant efforts have been made to enhance smart materials so that they resemble natural materials in terms of accuracy, design, and utility. Here, a review of the latest research on smart materials that can alter the electrical properties of nanostructures is presented. The main objective of this review is to introduce the role of smart materials in controlling the electrical performance of nanostructures. Furthermore, this review proposes an analysis of the integration and cooperation of previous research, such as the use of a piezoelectric motor in the design of structural magnetic nanodevices to control these devices. Piezoelectric actuators can also be used to develop a new method for controlling PV modulators for fabricating a single-wall nanotube. This new proposal could alter the properties of many nanoscale systems serving several medical and engineering fields. Moreover, this review proposes a novel methodology for nanocoating by introducing an antireflective coating with multiple layers. This method can effectively enhance the functions of the nanoscale coating.
Comparison of the Doppler Indices in the Ophthalmic Artery and Central Retinal Artery in Diabetic and Nondiabetic Individuals
Authors: Nadeem Baby , Bacha Raham , Gilani Syed Amir , Manzoor Iqra
Published: May 2021

Objective:

Diabetes can lead to diabetic retinopathy, which damages the retina due to blood flow remodeling of occular vessels. Early stages of diabetic retinopathy may not present with patient symptoms. Doppler indices, of the ophthalmic arteries, could help in determining the effect of diabetic vascular remodeling. This research was designed to compare the Doppler indices, in the ophthalmic artery and central retinal artery, in both diabetic and nondiabetic patients.

Materials and Methods:

This was a cross-sectional observational study of 72 total patients. Sonography was performed on the ophthalmic arteries of 36 diabetics and 36 nondiabetics, to compare Doppler indices. All patients were voluntarily consented to this research that was approved by the university’s Institutional Review Board (IRB). Doppler parameters recorded were peak systolic velocity, end dystopic velocity, resistive index, and pulsatility index, which were taken in both patient groups and compared.

Results:

A significant difference was noted in the ophthalmic artery peak systolic velocity, end-diastolic velocity, pulsatility index, and resistive index for diabetic and nondiabetic individuals, with a statistically significant set at .01.

Conclusions:

There was a significant difference between diabetic and nondiabetic ophthalmic Doppler indices in this cohort of patients. This cohort demonstrated vascular remodeling of the ophthalmic arteries, caused by diabetes; therefore, blood flow resistance was increased due to diabetes.
Quality Improvement Initiatives in Sonography Education: A Review of the Literature
Authors: Sorrentino Kimberly
Published: May 2021

Objective:

Continuous improvement is vital to ensuring quality in sonography education. The aim of this literature review was to compile and summarize the current literature on accreditation, credentialing, and quality improvement initiatives in sonography education.

Materials & Methods:

Four sonography-specific journals and six health science/academic databases were searched using the terms education, sonography, ultrasound, accreditation, credential, and quality. The search was limited to findings in the English language, from 2000 to 2020.

Results:

The search uncovered only 19 articles on this topic in sonography education. The vast majority of papers focused on quality improvement initiatives, while just a few concentrated on accreditation or credentialing.

Conclusion:

Much of the contemporary sonography educational literature focuses on clinical, lab, or didactic quality improvement initiatives. Overall, it is clear that more research is needed in the field of sonography education. This review provides examples of quality initiative research in other allied health fields that can be useful guides for future sonography educational research.
Detection of copy number variants in African goats using whole genome sequence data
Authors:   the VarGoats Consortium, Nandolo Wilson , Mészáros Gábor , Wurzinger Maria , Banda Liveness J. , Gondwe Timothy N. , Mulindwa Henry A. , Nakimbugwe Helen N. , Clark Emily L. , Woodward-Greene M. Jennifer , Liu Mei , Liu George E. , Van Tassell Curtis P. , Rosen Benjamin D. , Sölkner Johann
Published: May 2021

Background

Copy number variations (CNV) are a significant source of variation in the genome and are therefore essential to the understanding of genetic characterization. The aim of this study was to develop a fine-scaled copy number variation map for African goats. We used sequence data from multiple breeds and from multiple African countries.

Results

A total of 253,553 CNV (244,876 deletions and 8677 duplications) were identified, corresponding to an overall average of 1393 CNV per animal. The mean CNV length was 3.3 kb, with a median of 1.3 kb. There was substantial differentiation between the populations for some CNV, suggestive of the effect of population-specific selective pressures. A total of 6231 global CNV regions (CNVR) were found across all animals, representing 59.2 Mb (2.4%) of the goat genome. About 1.6% of the CNVR were present in all 34 breeds and 28.7% were present in all 5 geographical areas across Africa, where animals had been sampled. The CNVR had genes that were highly enriched in important biological functions, molecular functions, and cellular components including retrograde endocannabinoid signaling, glutamatergic synapse and circadian entrainment.

Conclusions

This study presents the first fine CNV map of African goat based on WGS data and adds to the growing body of knowledge on the genetic characterization of goats.
Blood flow changes in the forearm arteries after ultrasound-guided costoclavicular brachial plexus blocks: a prospective observational study
Authors: Xu Yang , Cui Derong , Zhang Junfeng , Ding Qian , Dong Jing , Wang Yan
Published: May 2021

Background

An increase in blood flow in the forearm arteries has been reported after brachial plexus block (BPB). However, few studies have quantitatively analysed the blood flow of the forearm arteries after BPB or have studied only partial haemodynamic parameters. The purpose of the present study was to comprehensively assess blood flow changes in the distal radial artery (RA) and ulnar artery (UA) after BPB performed via a new costoclavicular space (CCS) approach using colour Doppler ultrasound.

Methods

Thirty patients who underwent amputated finger replantation and received ultrasound-guided costoclavicular BPB were included in the study. The haemodynamic parameters of the RA and UA were recorded before the block and 10 min, 20 min, and 30 min after the block using colour Doppler ultrasound to determine the peak systolic velocity (PSV), end-diastolic velocity (EDV), mean velocity (Vmean), pulsatility index (PI), resistance index (RI) and area. The volumetric flow rate (VFR) was calculated using the formula Q = area×Vmean. The aforementioned parameters were compared not only before and after the BPB but also between the RA and UA.

Results

Compared with those of the respective baselines, there was a significant increase in the PSV, EDV, Vmean, area, and VFR and a significant decrease in the PI and RI of the RA and UA 10 min, 20 min, and 30 min post-block. The increase 30 min post-block in EDV (258.68 % in the RA, 279.63 % in the UA) was the most notable, followed by that in the Vmean (183.36 % in the RA, 235.24 % in the UA), and the PSV (139.11 % in the RA, 153.15 % in the UA) changed minimally. The Vmean and VFR of the RA were significantly greater than those of the UA before the BPB; however, there was no significant difference in the VFR between the RA and UA after the BPB.

Conclusions

A costoclavicular BPB can increase blood flow in the forearm arteries. The RA had a higher volumetric flow rate than the UA before the BPB; however, the potential blood supply capacity of the UA was similar to that of the RA after a BPB.

Trial registration

This study was registered at the Chinese Clinical Trial Registry (http://www.chictr.org.cn/searchproj.aspx, clinical trial number: ChiCTR 1900023796, date of registration: June 12, 2019)
Implementation of a performance-based financing scheme in Malawi and resulting externalities on the quality of care of non-incentivized services
Authors: Brenner Stephan , Favaretti Caterina , Lohmann Julia , Chinkhumba Jobiba , Muula Adamson S. , De Allegri Manuela
Published: May 2021

Background

Countries in Africa progressively implement performance-based financing schemes to improve the quality of care provided by maternal, newborn and child health services. Beyond its direct effects on service provision, evidence suggests that performance-based financing can also generate positive externalities on service utilization, such as increased use of those services that reached higher quality standards after effective scheme implementation. Little, however, is known about externalities generated within non-incentivized health services, such as positive or negative effects on the quality of services within the continuum of maternal care.

Methods

We explored whether a performance-based financing scheme in Malawi designed to improve the quality of childbirth service provision resulted positive or negative externalities on the quality of non-targeted antenatal care provision. This non-randomized controlled pre-post-test study followed the phased enrolment of facilities into a performance-based financing scheme across four districts over a two-year period. Effects of the scheme were assessed by various composite scores measuring facilities’ readiness to provide quality antenatal care, as well as the quality of screening, prevention, and education processes offered during observed antenatal care consultations.

Results

Our study did not identify any statistically significant effects on the quality of ANC provision attributable to the implemented performance-based financing scheme. Our findings therefore suggest not only the absence of positive externalities, but also the absence of any negative externalities generated within antenatal care service provision as a result of the scheme implementation in Malawi.

Conclusions

Prior research has shown that the Malawian performance-based financing scheme was sufficiently effective to improve the quality of incentivized childbirth service provision. Our findings further indicate that scheme implementation did not affect the quality of non-incentivized but clinically related antenatal care services. While no positive externalities could be identified, we also did not observe any negative externalities attributable to the scheme’s implementation. While performance-based incentives might be successful in improving targeted health care processes, they have limited potential in producing externalities – neither positive nor negative – on the provision quality of related non-incentivized services.
Radiographic features and prognosis of early- and late-onset non-small cell lung cancer immune checkpoint inhibitor-related pneumonitis
Authors: Huang Aiben , Xu Yang , Zang Xuelei , Wu Chongchong , Gao Jie , Sun Xiaoli , Xie Mei , Ma Xidong , Deng Hui , Song Jialin , Ren Fangping , Pang Li , Qian Jin , Yu Zhaofeng , Wan Shiyu , Chen Yuanyuan , Pan Lei , Zhuang Guanglei , Liu Sanhong , Xue Xinying
Published: May 2021

Background

Immunotherapy is becoming a standard of care for non-small cell lung cancer (NSCLC). Checkpoint inhibitor-associated pneumonia (CIP) is a rare and potentially life-threatening event that can occur at any time during tumor immunotherapy. However, there may be differences in the radiological patterns and prognosis of CIP during different periods. This study aimed to investigate the radiographic features and prognosis of early- and late-onset immune-related pneumonitis.

Methods

We retrospectively analyzed the clinical data of 677 NSCLC patients receiving immunotherapy to identify 32 patients with CIP, analyzed the clinical and radiographic data, and summarized the radiological features and prognosis of early- and late-onset CIP.

Results

CIP had an incidence of 4.7%, a median onset time of 10 weeks, and a mortality of 28.1%. Among these, CIP included 14 early-onset cases, where grade ≥ 3 CIP accounted for 92.9%, main radiographic pattern was organizing pneumonia (OP)-like pattern, and mortality was 50.0%. We also identified 18 late-onset CIPs, where grade ≥ 3 CIP accounted for 50.0%, main radiographic pattern was nonspecific interstitial pneumonia (NSIP)-like pattern, and mortality was 11.1%. The overall survival rate of the early-onset group was significantly lower than that of the late-onset group (P < 0.05).

Conclusion

Early-onset CIP cases were higher in the Common Terminology Criteria for Adverse Events (CTCAE v5.0) grade and mainly presented with an OP-like radiographic pattern; whereas, late-onset CIP cases were lower in CTCAE grade and mainly presented with an NSIP-like radiographic pattern. Finally, the prognosis of the early-onset CIP group was poorer than that of the late-onset CIP group. We believe that this study will be helpful for clinicians for making early diagnosis and deciding treatment modalities for patients with CIP.
Significance of KDM6A mutation in bladder cancer immune escape
Authors: Chen Xingxing , Lin Xuehua , Pang Guofu , Deng Jian , Xie Qun , Zhang Zhengrong
Published: May 2021

Background

Bladder cancer (BC) is the fourth most prevalent neoplasm in men and is associated with high tumour recurrence rates, leading to major treatment challenges. Lysine-specific demethylase 6A (KDM6A) is frequently mutated in several cancer types; however, its effects on tumour progression and clinical outcome in BC remain unclear. Here, we explored the potential role of KDM6A in regulating the antitumor immune response.

Methods

We mined The Cancer Genome Atlas (TCGA) and International Cancer Genome Consortium (ICGC) databases for somatic mutation and clinical data in patients with BC.

Results

We found frequent mutations in 12 genes in both cohorts, including TP53, KDM6A, CSMD3, MUC16, STAG2, PIK3CA, ARID1A, RB1, EP300, ERBB2, ERBB3, and FGFR3. The frequency o KDM6A mutations in the TCGA and ICGC datasets was 25.97 and 24.27%, respectively. In addition, KDM6A mutation was associated with a lower number of tumour-infiltrating immune cells (TIICs) and indicated a state of immune tolerance. KDM6A mutation was associated with lower KDM6A mRNA level compared with that in samples carrying the wild-type gene. Further, survival analysis showed that the prognosis of patients with low KDM6A expression was worse than that with high KDM6A expression. Using the CIBERSORT algorithm, Tumor Immune Estimation Resource site, and Gene Set Enrichment Analysis, we found that KDM6A mutation downregulated nine signalling pathways that participate in the immune system and attenuated the tumour immune response.

Conclusion

Overall, we conclude that KDM6A mutation is frequent in BC and promotes tumour immune escape, which may serve as a novel biomarker to predict the immune response.
Breast lesions excised via vacuum-assisted system: could we get any clues for B3 lesions before excision biopsy?
Authors: Zheng Liang , Zheng Fufu , Xing Zhaomin , Zhang Yunjian , Li Yongxin , Xu Hongbiao , Lai Yuanhui , Li Jie , Wang Wenjian
Published: May 2021

Background

The purpose of this study was to determine the validity of the ultrasound features as well as patient characteristics assigned to B3 (uncertain malignant potential) breast lesions before vacuum-assisted excision biopsy (VAEB).

Methods

This study population consisted of 2245 women with breast-nodular abnormalities, which were conducted ultrasound-guided VAEB (US-VAEB). Patient’s clinical and anamnestic data and lesion-related ultrasonic feature variables of B3 captured before US-VAEB were compared with those of benign or malignant cases, using histopathological results as a benchmark.

Results

The proportions of benign, B3 and malignant breast lesions diagnosed post-US-VAEB were 88.5, 8.2 and 3.4% respectively. B3 high frequent occurred in BI-RADS-US grade 3 (7.7%), grade 4a (11.0%) and grade 4b (9.1%). The overall malignancy underestimation rate of B3 was 4.4% (8/183). Malignant lesions were found mostly in the range of BI-RADS grade 4b (27.3%), grade 4c (33.3%) and grade 5 (100%). Multivariate binary logistic regression analyses (B3 vs benign) showed that non-menopausal patients (95% CI 1.628–8.616, P = 0.002), single (95% CI 1.370–2.650, P = 0.000) or vascularity (95% CI 1.745–4.150, P = 0.000) nodules in ultrasonic features were significant risk factors for B3 occurrences. In addition, patients elder than 50 years (95% CI 3.178–19.816, P = 0.000), unclear margin (95% CI 3.571–14.119, P = 0.000) or suspicious calcification (95% CI 4.010–30.733, P = 0.000) lesions were significantly associated with higher risks of malignant potentials for B3 cases (malignant vs B3).

Conclusion

The results of this study indicate that ultrasound findings and patients’ characteristics might provide valuable information for distinguishing B3 lesions from benign breast abnormalities before VAEB, and help to reduce malignancy underestimation of B3.
Pooled CRISPR screening in pancreatic cancer cells implicates co-repressor complexes as a cause of multiple drug resistance via regulation of epithelial-to-mesenchymal transition
Authors: Ramaker Ryne C. , Hardigan Andrew A. , Gordon Emily R. , Wright Carter A. , Myers Richard M. , Cooper Sara J.
Published: May 2021

Background

Pancreatic ductal adenocarcinoma (PDAC) patients suffer poor outcomes, including a five-year survival of below 10%. Poor outcomes result in part from therapeutic resistance that limits the impact of cytotoxic first-line therapy. Novel therapeutic approaches are needed, but currently no targeted therapies exist to treat PDAC.

Methods

To assess cellular resistance mechanisms common to four cytotoxic chemotherapies (gemcitabine, 5-fluorouracil, irinotecan, and oxaliplatin) used to treat PDAC patients, we performed four genome-wide CRISPR activation (CRISPRact) and CRISPR knock-out (CRISPRko) screens in two common PDAC cell lines (Panc-1 and BxPC3). We used pathway analysis to identify gene sets enriched among our hits and conducted RNA-sequencing and chromatin immunoprecipitation-sequencing (ChIP-seq) to characterize top hits from our screen. We used scratch assays to assess changes in cellular migration with HDAC1 overexpression.

Results

Our data revealed activation of ABCG2,a well-described efflux pump, as the most consistent mediator of resistance in each of our screens. CRISPR-mediated activation of genes involved in transcriptional co-repressor complexes also conferred resistance to multiple drugs. Expression of many of these genes, including HDAC1, is associated with reduced survival in PDAC patients. Up-regulation of HDAC1 in vitro increased promoter occupancy and expression of several genes involved in the epithelial-to-mesenchymal transition (EMT). These cells also displayed phenotypic changes in cellular migration consistent with activation of the EMT pathway. The expression changes resulting from HDAC1 activation were also observed with activation of several other co-repressor complex members. Finally, we developed a publicly available analysis tool, PancDS, which integrates gene expression profiles with our screen results to predict drug sensitivity in resected PDAC tumors and cell lines.

Conclusion

Our results provide a comprehensive resource for identifying cellular mechanisms of drug resistance in PDAC, mechanistically implicate HDAC1, and co-repressor complex members broadly, in multi-drug resistance, and provide an analytical tool for predicting treatment response in PDAC tumors and cell lines.
Profiles of total worker health® in United States small businesses
Authors: Schwatka Natalie V. , Dally Miranda , Shore Erin , Dexter Lynn , Tenney Liliana , Brown Carol E. , Newman Lee S.
Published: May 2021

Background

The Total Worker Health® (TWH) approach is a best practice method to protect and promote worker safety, health, and well-being. Central to this approach is leadership support and health and safety climates that support day-to-day use of health and safety policies and programs. There is some research that supports these relationships, but there is limited research amongst small businesses. Furthermore, it remains to be shown what role TWH business strategies, as reflected by organizational policies and programs, play in this process. The purpose of this study is to characterize small businesses by their organizations’ TWH approach and assess the relationship of these approaches to employee health and safety behaviors.

Methods

We utilized cross-sectional data from 97 businesses participating in the Small+Safe+Well study. We collected data using a business assessment tool, Healthy Workplace Assessment™, and an employee assessment tool, Employee Health and Safety Culture Survey. We used latent profile analysis at the business level to identify subgroups of businesses based on a set of characteristics from these assessments. Linear regression analysis at the employee level was used to determine profile association with employee safety and health behaviors.

Results

There were two profiles characterized by the lowest (33% of all businesses) and highest (9%) levels of the indicators. There were also two profiles with higher scores on two of the different foci on either TWH business strategies (27%) or leadership and climate (31%). Employees working for a business with a profile that focused on leadership and climate, in addition to having a business strategy, reported the best safety and health behaviors.

Conclusions

Our study demonstrates that employee engagement in TWH will be highest when businesses have a strategy for how they implement a TWH approach and when they demonstrate leadership commitment to these strategies and foster positive safety and health climates. Our results offer suggestions on how to use TWH assessments to develop interventions for small businesses. More research is needed to understand whether small businesses can improve upon their profile overtime, whether these changes depend on contextual factors, and whether TWH interventions can help them improve their profile.
Feasibility pilot of an adapted parenting program embedded within the Thai public health system
Authors: McCoy Amalee , Lachman Jamie M. , Ward Catherine L. , Tapanya Sombat , Poomchaichote Tassawan , Kelly Jane , Mukaka Mavuto , Cheah Phaik Yeong , Gardner Frances
Published: May 2021

Background

This feasibility pilot of the Parenting for Lifelong Health for Young Children program in Thailand aimed to: 1) explore the feasibility of study evaluation approaches; 2) assess the feasibility of delivering an adapted program; 3) report indicative effects on child maltreatment and related outcomes; and 4) examine intervention content associated with key mechanisms of change perceived by caregivers and facilitators.

Method

Sixty primary caregivers of children aged 2–9 years were recruited for an 8-week parenting program embedded within the local health system. Mixed-methods approaches included quantitative caregiver-report and observational data from standardized instruments, and qualitative data from individual and group interviews with caregivers and program facilitators. Analyses involved Wilcoxon signed-rank tests, paired t-tests, Friedman’s ANOVA, and thematic analysis.

Results

Participants reported that most (65%) were grandparents or great-grandparents. Study retention and response rates were high, and enrolled caregivers attended an average of 93% of sessions. Primary outcomes showed caregiver-reported pre-post reductions in overall child maltreatment (d = − 0.58, p < 0.001), as well as reductions in physical (d = − 0.58, p < 0.001) and emotional abuse (d = − 0.40, p < 0.001). Combined caregiver report and observational assessments using the HOME Inventory showed reductions in abusive and harsh parenting (d = − 0.52, p < 0.001). Secondary outcomes demonstrated decreases in child neglect; dysfunctional parenting; poor child monitoring and supervision; parental sense of inefficacy; child behavior problems; daily report on child problem behavior; parent overall depression, anxiety, and stress; and attitudes supporting physical punishment and harsh discipline. There were increases in overall positive parenting, daily positive parenting behavior, as well as HOME Inventory assessments on parent-child relationships. Thematic analyses from interviews and focus group data identified six key program themes associated with strengthened parent-child relationships, reduced child behavior problems, improved attitudes and strategies toward discipline, and improved management of parental stress.

Conclusions

This study represents one of few evaluations to test the feasibility of an evidence-based parenting program embedded within routine public health service delivery in a low- or middle-income country. Findings show preliminary effectiveness in reducing child maltreatment, improvements on 22 of 24 secondary outcomes, and perceived mechanisms of change that support quantitative findings. Prospects are promising for program scalability, pending randomized controlled trial results.

Trial registration

11/01/2019, ClinicalTrials.gov, ID# NCT03539341.
“I don’t feel safe sitting in my own yard”: Chicago resident experiences with urban rats during a COVID-19 stay-at-home order
Authors: Murray Maureen H. , Byers Kaylee A. , Buckley Jacqueline , Magle Seth B. , Maffei Dorothy , Waite Preeya , German Danielle
Published: May 2021

Background

Encounters with rats in urban areas increase risk of human exposure to rat-associated zoonotic pathogens and act as a stressor associated with psychological distress. The frequency and nature of human-rat encounters may be altered by social distancing policies to mitigate the COVID-19 pandemic. For example, restaurant closures may reduce food availability for rats and promote rat activity in nearby residential areas, thus increasing public health risks during a period of public health crisis. In this study, we aimed to identify factors associated with increased perceived exposure to rats during a stay-at-home order, describe residents’ encounters with rats relevant to their health and well-being, and identify factors associated with increased use of rodent control.

Methods

Urban residents in Chicago, a large city with growing concerns about rats and health disparities, completed an online questionnaire including fixed response and open-ended questions during the spring 2020 stay-at-home order. Analyses included ordinal multivariate regression, spatial analysis, and thematic analysis for open-ended responses.

Results

Overall, 21% of respondents (n = 835) reported an increase in rat sightings around their homes during the stay-at-home order and increased rat sightings was positively associated with proximity to restaurants, low-rise apartment buildings, and rat feces in the home (p ≤ 0.01). Many respondents described feeling unsafe using their patio or yard, and afraid of rats entering their home or spreading disease. Greater engagement with rodent control was associated with property ownership, information about rat control, and areas with lower incomes (p ≤ 0.01).

Conclusions

More frequent rat encounters may be an unanticipated public health concern during periods of social distancing, especially in restaurant-dense areas or in low-rise apartment buildings. Rat presence may also limit residents’ ability to enjoy nearby outdoor spaces, which otherwise might buffer stress experienced during a stay-at-home order. Proactive rat control may be needed to mitigate rat-associated health risks during future stay-at-home orders.
Authentication of differential gene expression in oral squamous cell carcinoma using machine learning applications
Authors: Pratama Rian , Hwang Jae Joon , Lee Ji Hye , Song Giltae , Park Hae Ryoun
Published: May 2021

Background

Recently, the possibility of tumour classification based on genetic data has been investigated. However, genetic datasets are difficult to handle because of their massive size and complexity of manipulation. In the present study, we examined the diagnostic performance of machine learning applications using imaging-based classifications of oral squamous cell carcinoma (OSCC) gene sets.

Methods

RNA sequencing data from SCC tissues from various sites, including oral, non-oral head and neck, oesophageal, and cervical regions, were downloaded from The Cancer Genome Atlas (TCGA). The feature genes were extracted through a convolutional neural network (CNN) and machine learning, and the performance of each analysis was compared.

Results

The ability of the machine learning analysis to classify OSCC tumours was excellent. However, the tool exhibited poorer performance in discriminating histopathologically dissimilar cancers derived from the same type of tissue than in differentiating cancers of the same histopathologic type with different tissue origins, revealing that the differential gene expression pattern is a more important factor than the histopathologic features for differentiating cancer types.

Conclusion

The CNN-based diagnostic model and the visualisation methods using RNA sequencing data were useful for correctly categorising OSCC. The analysis showed differentially expressed genes in multiwise comparisons of various types of SCCs, such as KCNA10, FOSL2, and PRDM16, and extracted leader genes from pairwise comparisons were FGF20, DLC1, and ZNF705D.
Antlerogenic stem cells extract accelerate chronic wound healing: a preliminary study
Authors: Kmiecik Janusz , Kulus Michał Jerzy , Popiel Jarosław , Cekiera Agnieszka , Cegielski Marek
Published: May 2021

Background

Chronic wounds constitute a significant medical and social problem. Chronic wound treatment may be supported by various techniques, such as negative pressure therapy, phototherapy or stem cells therapy, yet most of those supporting therapies need more evidence to be used for standard wound care. Current study covers the use of sonicated Antlerogenic Stem Cells (ASC) extract on chronic wounds.

Methods

Study was performed on 20 dermatological patients with venous leg ulcers, divided into two groups – treated with and without ASC extract respectively. The area and circumference of the wounds during the follow-up visits were measured on the wound imprint. Dynamics of wound healing was determined and compared between control and study group; statistics includes changes in absolute values (wound area, circumference), as well as relative (percentage of wound decrease, circumference/area ratio) and their change in time. For the purpose of Ki-67 immunohistochemical staining, sections were sampled from the wound edge at distinct check-points during therapy. Results of both groups were compared with Student test or Mann-Whitney test, depending on results distribution.

Results

Besides Ki-67 expression, all tested wound healing parameters (including relative and absolute wound decrease and changes in circumference/area ratio) were statistically significant more favorable in experimental group.

Conclusion

ASC extract significantly supported standard chronic wound treatment. Due to small population of study the results should be considered preliminary, yet promising for further research.
The cancer‐associated fibroblasts related gene CALD1 is a prognostic biomarker and correlated with immune infiltration in bladder cancer
Authors: Du YiHeng , Jiang Xiang , Wang Bo , Cao Jin , Wang Yi , Yu Jiang , Wang XiZhi , Liu HaiTao
Published: May 2021

Background

Stromal components of the tumor microenvironment contribute to bladder cancer progression, and Cancer-Associated Fibroblasts (CAFs) were reported to play an important role. Accumulating pieces of evidence indicate that CAFs participate in the crosstalk with tumor cells and have a complex interaction network with immune components. Further studies on the role of CAFs in the bladder cancer microenvironment and searching for possible specific markers are important for a deeper understanding of CAFs in bladder cancer progression and immunomodulation.

Methods

In the present study, we examined the abundance of CAFs in the TCGA and GEO datasets using the MCP-COUNTER algorithm. Additionally, the expression of genes related to CAFs was analyzed through the Weighted Gene Co-expression Network Analysis (WGCNA). The CIBERSORT and ESTIMATE algorithms were used to discuss the correlation of the key CAFs-related gene and the tumor microenvironment components. Immunohistochemistry analysis in clinical samples was used to validate the results of bioinformatics analysis.

Results

The results showed that CAFs were closely associated with the progression and prognosis of bladder cancer. WGCNA also revealed that CALD1 was a key CAFs-related gene in bladder cancer. Moreover, further in-depth analysis showed that CALD1 significantly affected the progression and prognosis of bladder cancer. The CIBERSORT and ESTIMATE algorithms demonstrated significant correlations between CALD1 and the tumor microenvironment components, including CAFs, macrophages, T cells, and multiple immune checkpoint related genes. Finally, immunohistochemistry results validated the strong association of CALD1 with CAFs and macrophages.

Conclusions

In the present study, we confirmed the cancer-promoting roles of CAFs in bladder cancer. Being a key gene associated with CAFs, CALD1 may promote bladder cancer progression by remodeling the tumor microenvironment. The bioinformatics methods, including the CIBERSORT, MCP-COUNTER and ESTIMATE algorithms, may provide important value for studying the tumor microenvironment.