bluuebunny/crossref_metadata_2025 huggingface dataset:
Emotional well-being in Charles Bonnet syndrome: exploring associations with negative affect, loneliness and quality of life
Authors: Higgins Bethany , Taylor Deanna , Crabb David , Callaghan Tamsin
Published: September 2024

Background:

Charles Bonnet syndrome (CBS) is a condition characterised by the occurrence of vivid and complex visual hallucinations in individuals with visual impairment.

Objective:

To explore the relationship between emotional distress and the perceived impact of CBS symptoms on participants’ lives. We tested the hypothesis that heightened negative affect was associated with a more negative appraisal of CBS symptoms, increased self-reported loneliness, and poorer quality of life (QOL).

Design:

Cross-sectional.

Methods:

Participants recruited predominantly via vision-related charities rated their hallucinations and their impact on a Likert scale. Loneliness and negative affect were assessed with the Three-Item Loneliness Scale and Positive and Negative Affect Schedule. Health index (EQ-5D-3L) and vision-related QOL (VF-9) were also assessed. Correlation analysis and multi-variable regression determined the relation between survey responses.

Results:

The majority of 126 respondents (81%) were aged 65+ years and 84% reported active CBS symptoms. Fifty-five percent of respondents rated impact of CBS as negative and no-one rated the impact as ‘very pleasant’. A statistically significant correlation was found between impact of CBS and negative affect ( p ⩽ 0.001; rho = −0.34) and impact of CBS and loneliness ( p = 0.017; rho = −0.21). The relation between negative affect and CBS impact remained statistically significant when accounting for the impact of loneliness and the relationship between loneliness and CBS effect ( p = 0.002, adj R2 = 0.1). A statistically significant correlation between loneliness and negative affect ( p ⩽ 0.001; rho = 0.55) was also found.

Conclusion:

Respondents experiencing negative emotions were more likely to perceive the impact of CBS symptoms as negative and report greater feelings of loneliness. Negative affect is an important consideration when assessing people with CBS.
Patient perspectives of a fall leading to emergency department visit during the COVID-19 pandemic: A qualitative study in Northern Ontario
Authors: Dorans Jeff , Webber Jodi , Myles Sophia , Chung Winyan , Aceti-Chlebus Victoria , Hopper Katriina
Published: September 2024

Background and objectives

Falls are a leading cause of injury-related emergency department (ED) visits and hospitalizations across Canada and can result in decline in function and quality of life for an older adult. The COVID-19 pandemic placed severe strain on EDs and hospitals across Canada. This study aimed to understand the experience of older adults who presented to the ED as a result of having a fall during a COVID-19 surge. This may help generate hypotheses and ideas about how to provide optimal care in the midst of pandemic-related healthcare system disruption.

Methods

A purposive sampling strategy identified nine participants over age 65 in a medium population centre in Northern Ontario, Canada. Qualitative semi-structured interviews sought information regarding patient demography and function prior to their fall, the circumstances and communication surrounding their fall, and information about their post-fall recovery. Qualitative thematic analysis of the data was completed.

Results

Three main themes were identified: patients minimized their fall risk; the challenge of interacting with the healthcare system in a time of limited resources; and complex care navigation and fragmentation within the healthcare system.

Discussion

Participants were uncertain about the significance of a fall. Post-fall care was directed by the participant, and little coordination or education was provided at the point of contact with the health care system. Participants were hesitant to present to the ED. Participants expressed vulnerability when reflecting on their experience and acknowledged the systemic pressures experienced by their healthcare workers during the COVID-19 pandemic.
Filling Asia’s Infrastructure Investment Gap: The Role of Mega Infrastructure Initiatives
Authors: Wignaraja Ganeshan , Gatti Marco
Published: September 2024

This article uses the lens of key financial actors to analyse the daunting challenge of Asia’s long-term infrastructure development. It examines three issues: (a) the historic role of infrastructure in Asian economic development; (b) the contribution of mega infrastructure initiatives (MIIs) (e.g., China’s Belt and Road Initiative and Japan’s Partnership for Quality Infrastructure) to filling the region’s large infrastructure investment gap; and (c) the effectiveness of the Asian Development Bank (ADB). While underlining infrastructure investment as a key driver of Asia’s economic miracle and emerging regionalism, the article highlights the region’s large infrastructure investment gap. It shows that MIIs have only partially filled Asia’s large infrastructure investment gap and there is a risk of an Asian ‘noodle bowl’ of multiple overlapping initiatives, which may raise transactions costs for small regional economies. It suggests that ADB’s honest broker and financing roles have helped to bring parties together in regional projects, but ADB operations can be improved. It ends with policy implications.

JEL Codes: O16, O19, G20, G23, H54
GABA, Aging and Exercise: Functional and Intervention Considerations
Authors: Novak Tom S , McGregor Keith M , Krishnamurthy Lisa C , Evancho Alexandra , Mammino Kevin , Walters Courtney E , Weber Ashton , Nocera Joe R
Published: September 2024

The global growth of an aging population is expected to coincide with an increase in aging-related pathologies, including those related to brain health. Thus, the potential for accelerated cognitive health declines due to adverse aging is expected to have profound social and economic implications. However, the progression to pathological conditions is not an inevitable part of aging. In fact, engaging in activities that improve cardiovascular fitness appears to be a means that offers the benefits of maintaining and/or improving cognitive health in older age. However, to date, the underlying mechanisms responsible for improved central nervous system health and function with exercise are not yet fully elucidated. Consequently, there is considerable interest in studies aimed at understanding the neurophysiological benefits of exercise on aging. One such area of study suggests that the improvements in brain health via exercise are, in part, driven by the recovery of inhibitory processes related to the neurotransmitter gamma-aminobutyric acid (GABA). In the present review, we highlight the opposing effects of aging and exercise on cortical inhibition and the GABAergic system’s functional integrity. We highlight these changes in GABA function by reviewing work with in vivo measurements: transcranial magnetic stimulation (TMS) and magnetic resonance spectroscopy (MRS). We also highlight recent and significant technological and methodological advances in assessing the GABAergic system’s integrity with TMS and MRS. We then discuss potential future research directions to inform mechanistic GABA study targeted to improve health and function in aging. We conclude by highlighting the significance of understanding the effects of exercise and aging, its influence on GABA levels, and why a better understanding is crucial to allow for more targeted and effective interventions aimed to ultimately improve age-related decline in aging.
Platelet Transfusion Refractoriness
Authors: Lubis Anna Mira , Baskoro Muhammad Orri , Yasmin Amirah
Published: September 2024

Platelet transfusion refractoriness (PTR) is a conditioikb1n where platelet counts fail to increase adequately in several transfusions, often found in hemato-oncological situations. PTR poses life-threatening risks to patients, especially in cases when the platelet is very low, and transfusion is life-saving. It can be differentiated into immune or non-immune causes. While non-immune causes predominate, immune factors, particularly anti-HLA antibodies, are also notable in many cases. Accurately determining if platelet transfusion failure originates from an immune or non-immune cause is vital due to differing treatments, particularly the need for HLA-compatible platelets with immune causes. Yet, a lack of consensus exists regarding the diagnostic methods and treatment modalities. Therefore, this review aims to explore the origins, mechanisms, diagnostic criteria, and management approaches concerning PTR.
Global Health Indicators and Child Mortality Trends: Insights from a Global Panel Data Analysis of 200 Countries
Authors: Park Myung-Bae , Won Young-Joo
Published: September 2024

The aim of this study was to explore how medical resources and vaccine coverage relate to infant mortality rate (IMR) and under-five mortality rate (U-5MR), which are both key national health indicators. This longitudinal study was based on panel data from the national level of 200 countries. Data from 1990 to 2021 were grouped into seven regions based on geographic and epidemiological similarities. Regarding correlation, the high-income region showed a different trend from that shown by other regions. Health expenditure was positively associated with IMR and U-5MR globally. Number of medical doctors per 1,000 people was negatively associated with IMR and U-5MR globally. Hepatitis type B (HBV) and measles, first dose (MCV) were negatively associated with IMR and HBV, MCV, and Bacillus Calmette–Guérin were negatively associated with U-5MR globally. In quadratic regression, the correlation between the number of doctors and mortality stabilizes or plateaus at approximately four individuals. Overall vaccine coverage was positively correlated with mortality up to a certain threshold, beyond which it became negatively correlated. A higher number of doctors was consistently associated with decreased mortality, regardless of location, while other factors varied by region. Our study findings highlight the importance of implementing global strategies that are specific to each region's characteristics to reduce IMR and U-5MR.
Researching under the platform gaze: Rethinking the challenges of platform governance research
Authors: Are Carolina
Published: September 2024

Researching on platforms through platforms poses challenges to researchers, particularly when observing subcultures and content at the margins. Inspired by Massanari's essay on researching under the ‘alt-right’ gaze, this paper uses autoethnography to address the impact the system of platform governance has on researcher vulnerability in data collection, persona management and results dissemination, particularly for researchers gathering data censored by platforms and for researchers constructing their public profile through digital media. My goal is to examine how the intersection of platform power, academic precarity and the creator economy affects researchers and academics. At the heart of this are the questions: How can researchers gather data, disseminate results and establish a professional profile under platforms’ all-encompassing gaze? What does platform governance and its focus on specific areas of control mean for researching content and users at the margins? What risks do platforms themselves pose to researchers’ work? And how does the broader precarity of particularly early-career academic work intersect with the effects of platform power? To this end, this paper discusses the increasing digital labour required by the ‘impact agenda’ and the difficulty of managing a researcher online persona in an age of growing digital censorship, sharing personal experiences of censorship in research to define ‘the platform gaze’ as gendered, raced, heteronormative and puritan surveillance, constructing a social reality where marginalised individuals and dissent are both hyper-visible and vulnerable to harassment and silencing. I conclude with considerations on activist interventions in the platform governance field.
Pentagalloylglucose alleviates acetaminophen-induced acute liver injury by modulating inflammation via cGAS-STING pathway
Authors: Zheng Congyang , Chen Yuanyuan , He Tingting , Xiu Ye , Dong Xu , Wang Xianling , Wen Xinru , Li Chengwei , Yao Qing , Chen Simin , Zhan Xiaoyan , Gao Lili , Bai Zhaofang
Published: September 2024

Background

The cGAS-STING pathway is an important component of the innate immune system and plays significant role in acetaminophen-induced liver injury (AILI). Pentagalloylglucose (PGG) is a natural polyphenolic compound with various beneficial effects, including anti-cancer, antioxidant, anti-inflammatory, and liver-protective properties; however, whether it can be used for the treatment of AILI and the specific mechanism remain unclear.

Materials and methods

A cell culture model was created to study the effect of PGG on cGAS-STING pathway activation using various techniques including western blotting (WB), real-time quantitative polymerase chain reaction (RT-qPCR), immunofluorescence (IF), and immunoprecipitation (IP). The effect of PGG was investigated in vivo by establishing a dimethylxanthenone acetic acid (DMXAA)-mediated activation model. An AILI model was used to evaluate the hepatoprotective and therapeutic effects of PGG by detecting liver function indicators, liver histopathology, and cGAS-STING pathway-related indicators in mice with AILI.

Results

PGG blocked cGAS-STING pathway activation in bone marrow-derived macrophages (BMDMs), THP-1 cells, and peripheral blood mononuclear cells (PBMCs) in vitro. Furthermore, PGG inhibited the generation of type I interferons (IFN-I) and the secretion of inflammatory factors in DMXAA-induced in vivo experiments. In addition, PGG also reduced serum levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (ALP), improved liver tissue damage and apoptosis, and inhibited the cGAS-STING pathway activation caused by acetaminophen. In terms of the mechanism, PGG disrupted the connection between STING and TBK1.

Conclusions

PGG exerts a protective effect against AILI by blocking the cGAS-STING pathway, offering a promising treatment strategy.
Role of caspase-11 non-canonical inflammasomes in retinal ischemia/reperfusion injury
Authors: Wan Yong , Li Jiayu , Pu Jialei , Yang Jing , Pei Cheng , Qi Yun
Published: September 2024

Background

Retinal ischemia/reperfusion (IR) injury is a common pathological process in many ophthalmic diseases. Interleukin-1β (IL-1β) is an important inflammatory factor involved in the pathology of retinal IR injury, but the mechanism by which IL-1β is regulated in such injury remains unclear. Caspase-11 non-canonical inflammasomes can regulate the synthesis and secretion of IL-1β, but its role in retinal IR injury has not been elucidated. This study aimed to evaluate the role of caspase-11 non-canonical inflammasomes in retinal IR injury.

Methods

Retinal IR injury was induced in C57BL/6J mice by increasing the intraocular pressure to 110 mmHg for 60 min. The post-injury changes in retinal morphology and function and in IL-1β expression were compared between caspase-11 gene knockout (caspase-11−/−) mice and wild-type (WT) mice. Morphological and functional changes were evaluated using hematoxylin–eosin staining and retinal whole mount staining and using electroretinography (ERG), respectively. IL-1β expression in the retina was measured using enzyme-linked immunosorbent assay (ELISA). The levels of caspase-11-related protein were measured using western blot analysis. The location of caspase-11 in the retina was determined via immunofluorescence staining. Mouse type I astrocytes C8-D1A cells were used to validate the effects of caspase-11 simulation via hypoxia in vitro. Small-interfering RNA targeting caspase-11 was constructed. Cell viability was evaluated using the MTT assay. IL-1β expression in supernatant and cell lysate was measured using ELISA. The levels of caspase-11-related protein were measured using western blot analysis.

Results

Retinal ganglion cell death and retinal edema were more ameliorated, and the ERG b-wave amplitude was better after retinal IR injury in caspase-11−/− mice than in WT mice. Further, caspase-11−/− mice showed lower protein expressions of IL-1β, cleaved caspase-1, and gasdermin D (GSDMD) in the retina after retinal IR injury. Caspase-11 protein was expressed in retinal glial cells, and caspase-11 knockdown played a protective role against hypoxia in C8-D1A cells. The expression levels of IL-1β, cleaved caspase-1, and GSDMD were inhibited after hypoxia in the si-caspase-11 constructed cells.

Conclusions

Retinal IR injury activates caspase-11 non-canonical inflammasomes in glial cells of the retina. This results in increased protein levels of GSDMD and IL-1β and leads to damage in the inner layer of the retina.
Epigenetic mechanisms in cardiovascular complications of diabetes: towards future therapies
Authors: Damiano Giulia , Rinaldi Raffaella , Raucci Angela , Molinari Chiara , Sforza Annalisa , Pirola Sergio , Paneni Francesco , Genovese Stefano , Pompilio Giulio , Vinci Maria Cristina
Published: September 2024

The pathophysiological mechanisms of cardiovascular disease and microvascular complications in diabetes have been extensively studied, but effective methods of prevention and treatment are still lacking. In recent years, DNA methylation, histone modifications, and non-coding RNAs have arisen as possible mechanisms involved in the development, maintenance, and progression of micro- and macro-vascular complications of diabetes. Epigenetic changes have the characteristic of being heritable or deletable. For this reason, they are now being studied as a therapeutic target for the treatment of diabetes and the prevention or for slowing down its complications, aiming to alleviate the personal and social burden of the disease.

This review addresses current knowledge of the pathophysiological links between diabetes and cardiovascular complications, focusing on the role of epigenetic modifications, including DNA methylation and histone modifications. In addition, although the treatment of complications of diabetes with “epidrugs” is still far from being a reality and faces several challenges, we present the most promising molecules and approaches in this field.
Red blood cell transfusion in a tertiary Haitian hospital’s emergency department: patient characteristics and availability challenges
Authors: Jacques Flawendjee Djaweelentz , Julmisse Samentha Cyndie , Laurore Ange Cindy , Lefruit Ralph Mackenson , Chery Maurice Junior , Dubique Kobel
Published: September 2024

Background

Red blood cell (RBC) transfusions are essential for many patients admitted to emergency departments (ED). However, accessibility to red cell transfusions is often limited, especially in low-income countries such as Haiti. This article aims to determine the proportion of patients requiring emergency transfusion, transfused patients’ characteristics, as well as the response rate and timeliness of blood product delivery for requests made.

Methods

A retrospective study was conducted among all patients with RBC transfusion indications from January to June 2022 at the ED of Mirebalais Teaching Hospital. The parameters studied included transfusion indications, pre-transfusion hemoglobin levels, and delay from prescription to transfusion.

Results

During the study period, 3993 patients received treatment in the ED. The proportion of patients requiring RBCs was 7.69%, including 145 males and 117 females, with a median age of 43 [30–56] years. Only 21.7% of these patients received a transfusion. The average pre-transfusion hemoglobin level was 4.75 ± 1.68 g/dL. The most common transfusion’s indications were infection/sepsis (36.74%), trauma (23.48%), and cancer (21.57%). The median time delay from prescription to transfusion was 2.37 [0.97–4.93] days. The study identified significant associations between RBC transfusion probability and patient factors like hemoglobin levels, patient disposition, urgency of RBC request, and length of stay.

Conclusion

RBC transfusion requests are frequent in the ED of Mirebalais Teaching Hospital, with a relatively high transfusion delay. Further studies on the relevance of RBC requests and ways to reduce delay from prescription to transfusion would be beneficial to improve this situation.
Anekomochi glutinous rice provides low postprandial glycemic response by enhanced insulin action via GLP-1 release and vagal afferents activation
Authors: Ohbayashi Kento , Sugiyama Yudai , Nohmi Taichi , Nishimura Kazusa , Nakazaki Tetsuya , Sato Yo-Ichiro , Masumura Takehiro , Iwasaki Yusaku
Published: September 2024

Glutinous rice (mochi rice), compared to non-glutinous rice (uruchi rice), exhibits a wide range of glycemic index (GI) values, from low to high. However, the underlying mechanisms behind the variation in GI values remain poorly understood. In this study, we aimed to identify rice cultivars with a low postprandial glycemic response and investigate the mechanisms, focusing on insulin and incretin hormones. We examined seven glutinous rice cultivars and three non-glutinous rice cultivars. We discovered that Anekomochi, a glutinous rice cultivar, has the lowest postprandial glycemic response. Anekomochi significantly enhanced glucagon-like peptide-1 (GLP-1) secretion while suppressing insulin secretion. These effects were completely blunted by inhibiting GLP-1 receptor signaling and denervating the common hepatic branch of vagal afferent nerves that are crucial for sensing intestinal GLP-1. Our findings demonstrate that Anekomochi markedly enhances insulin action via GLP-1 release and vagal afferent neural pathways, thereby leading to a lower postprandial glycemic response.
A Bayesian multivariate hierarchical model for developing a treatment benefit index using mixed types of outcomes
Authors: Wu Danni , Goldfeld Keith S. , Petkova Eva , Park Hyung G.
Published: September 2024

Background

Precision medicine has led to the development of targeted treatment strategies tailored to individual patients based on their characteristics and disease manifestations. Although precision medicine often focuses on a single health outcome for individualized treatment decision rules (ITRs), relying only on a single outcome rather than all available outcomes information leads to suboptimal data usage when developing optimal ITRs.

Methods

To address this limitation, we propose a Bayesian multivariate hierarchical model that leverages the wealth of correlated health outcomes collected in clinical trials. The approach jointly models mixed types of correlated outcomes, facilitating the “borrowing of information” across the multivariate outcomes, and results in a more accurate estimation of heterogeneous treatment effects compared to using single regression models for each outcome. We develop a treatment benefit index, which quantifies the relative benefit of the experimental treatment over the control treatment, based on the proposed multivariate outcome model.

Results

We demonstrate the strengths of the proposed approach through extensive simulations and an application to an international Coronavirus Disease 2019 (COVID-19) treatment trial. Simulation results indicate that the proposed method reduces the occurrence of erroneous treatment decisions compared to a single regression model for a single health outcome. Additionally, the sensitivity analyses demonstrate the robustness of the model across various study scenarios. Application of the method to the COVID-19 trial exhibits improvements in estimating the individual-level treatment efficacy (indicated by narrower credible intervals for odds ratios) and optimal ITRs.

Conclusion

The study jointly models mixed types of outcomes in the context of developing ITRs. By considering multiple health outcomes, the proposed approach can advance the development of more effective and reliable personalized treatment.
An open-source fine-tuned large language model for radiological impression generation: a multi-reader performance study
Authors: Serapio Adrian , Chaudhari Gunvant , Savage Cody , Lee Yoo Jin , Vella Maya , Sridhar Shravan , Schroeder Jamie Lee , Liu Jonathan , Yala Adam , Sohn Jae Ho
Published: September 2024

Background

The impression section integrates key findings of a radiology report but can be subjective and variable. We sought to fine-tune and evaluate an open-source Large Language Model (LLM) in automatically generating impressions from the remainder of a radiology report across different imaging modalities and hospitals.

Methods

In this institutional review board-approved retrospective study, we collated a dataset of CT, US, and MRI radiology reports from the University of California San Francisco Medical Center (UCSFMC) (n = 372,716) and the Zuckerberg San Francisco General (ZSFG) Hospital and Trauma Center (n = 60,049), both under a single institution. The Recall-Oriented Understudy for Gisting Evaluation (ROUGE) score, an automatic natural language evaluation metric that measures word overlap, was used for automatic natural language evaluation. A reader study with five cardiothoracic radiologists was performed to more strictly evaluate the model’s performance on a specific modality (CT chest exams) with a radiologist subspecialist baseline. We stratified the results of the reader performance study based on the diagnosis category and the original impression length to gauge case complexity.

Results

The LLM achieved ROUGE-L scores of 46.51, 44.2, and 50.96 on UCSFMC and upon external validation, ROUGE-L scores of 40.74, 37.89, and 24.61 on ZSFG across the CT, US, and MRI modalities respectively, implying a substantial degree of overlap between the model-generated impressions and impressions written by the subspecialist attending radiologists, but with a degree of degradation upon external validation. In our reader study, the model-generated impressions achieved overall mean scores of 3.56/4, 3.92/4, 3.37/4, 18.29 s,12.32 words, and 84 while the original impression written by a subspecialist radiologist achieved overall mean scores of 3.75/4, 3.87/4, 3.54/4, 12.2 s, 5.74 words, and 89 for clinical accuracy, grammatical accuracy, stylistic quality, edit time, edit distance, and ROUGE-L score respectively. The LLM achieved the highest clinical accuracy ratings for acute/emergent findings and on shorter impressions.

Conclusions

An open-source fine-tuned LLM can generate impressions to a satisfactory level of clinical accuracy, grammatical accuracy, and stylistic quality. Our reader performance study demonstrates the potential of large language models in drafting radiology report impressions that can aid in streamlining radiologists’ workflows.
Does the use of Acellular Dermal Matrices (ADM) in women undergoing pre-pectoral implant-based breast reconstruction increase operative success versus non-use of ADM in the same setting? A systematic review
Authors: Cook Hannah I. , Glynou Sevasti P. , Sousi Sara , Zargaran David , Hamilton Stephen , Mosahebi Afshin
Published: September 2024

Background

Breast cancer is the most common malignancy among women in the UK. Reconstruction – of which implant-based breast reconstruction (IBBR) is the most common – forms a core part of surgical management of breast cancer. More recently, pre-pectoral IBBR has become common as technology and operative techniques have evolved. Many surgeons use acellular dermal matrix (ADM) in reconstruction however there is little evidence in literature that this improves surgical outcomes. This review will assess available evidence for surgical outcomes for breast reconstructions using ADM versus non-use of ADM.

Methods

A database search was performed of Ovid Medline, Embase, Cochrane Central Register of Controlled Trials and Cochrane Database of Systematic Reviews (2012–2022). Studies were screened using inclusion and exclusion criteria. Risk of Bias was assessed using the Newcastle Ottawa scale and ROBIS tools. Analysis and meta-analysis were performed.

Results

This review included 22 studies (3822 breast reconstructions). No significant difference between overall complications and failure rates between ADM and non-ADM use was demonstrated. Capsular contracture, wound dehiscence and implant rippling had significant differences however these results demonstrated high heterogeneity thus wider generalisation may be inaccurate. Patient quality of life scores were not recorded consistently or comparably between papers.

Conclusions

This review suggests a lack of significant differences in most complications between ADM use and non-use for pre-pectoral IBBR. If no increase in complications exists between groups, this has significant implications for surgical and legislative decision-making. There is, however, inadequate evidence available on the topic and further research is required.
Digital self-presentation and adolescent mental health: Cross-sectional and longitudinal insights from the “LifeOnSoMe”-study
Authors: Hjetland Gunnhild Johnsen , Finserås Turi Reiten , Sivertsen Børge , Colman Ian , Hella Randi Træland , Andersen Amanda Iselin Olesen , Skogen Jens Christoffer
Published: September 2024

Background

The intensive use of social media among adolescents has caused concern about its impact on their mental health, but studies show that social media use is linked to both better and worse mental health. These seemingly contradictory findings may result from the diverse motivations, interactions, and experiences related to social media use, and studies investigating specific facets of social media use in relation to mental health and well-being, beyond general usage metrics, have been called for. Aspects of self-presentation on social media, such as feedback-seeking and upwards social comparison have been linked to worse mental health, however, there is a need for more studies exploring the relationship between self-presentation on social media and adolescent mental health over time.

Aim

The aim of this study was to explore the cross-sectional and longitudinal relationship between aspects of self-presentation and depression, anxiety, and well-being among adolescents.

Methods

This study utilised both cross-sectional and longitudinal datasets from the LifeOnSoMe-study, comprising 3,424 and 439 participants, respectively (OSF preregistration https://doi.org/10.17605/OSF.IO/BVPS8). Latent Class Analysis (LCA) was used to identify similar response patterns within the Self-Presentation and Upwards Social Comparison Inclination Scale (SPAUSCIS). Regression models and first differencing methods were applied to evaluate the cross-sectional and longitudinal associations between focus on self-presentation and mental health and well-being among adolescents.

Results

A strong emphasis on self-presentation was linked to increased levels of depression and anxiety in both males and females, and reduced well-being in females when compared to those with lower or intermediate self-presentation focus. The effect sizes ranged from small to medium. Furthermore, an escalation in self-presentation focus over time was associated with a slight increase in symptoms of anxiety and depression; however, the association with well-being did not reach statistical significance.

Conclusion

The results of the present study suggest that a heightened focus on self-presentation, which includes behaviours such as seeking feedback, employing strategic self-presentation tactics, and engaging in upward social comparisons, is associated with an elevated risk of reduced mental health.
Association of changes and cumulative measures of triglyceride-glucose index-body mass index with hypertension risk: a prospective cohort study
Authors: Yan Jiamin , Zhang Min-zhe , He Qi-qiang
Published: September 2024

Background

To investigate the relationships of the dynamic changes in triglyceride glucose index-body mass index (TyG‑BMI) and cumulative TyG-BMI with the risk of hypertension among middle-aged and elderly Chinese.

Methods

Data were used from the China Health and Retirement Longitudinal Study (CHARLS). Participants who participated in the baseline study (2011–2012) and in subsequent surveys (2015–2018) were included in this study. The primary exposures were changes in TyG-BMI and cumulative TyG-BMI from 2012 to 2015. Changes in TyG-BMI were categorized using k-means clustering methods, while cumulative TyG-BMI was categorized into quartiles. Cox proportional hazards regression models were performed to examine the association between changes in TyG-BMI and cumulative TyG-BMI with the incidence of hypertension. Linear regression analyzes were performed to examine the association between changes in TyG-BMI and cumulative TyG-BMI with cumulative systolic blood pressure (SBP) and cumulative diastolic blood pressure (DBP).

Results

Of a total of 2,561 participants aged 56.93 ± 8.08 years old at baseline, 253 individuals (9.9%) developed hypertension during the 7-year follow-up period. The hazard ratios (HR) and 95% confidence interval (CI) for hypertension were 1.50 (1.10–2.03) for class 2 (persistently medium class) and 2.35 (1.61–3.42) for class 3 (persistently high class), compared to class 1 (persistently low class). Additionally, class 2 showed increases of 7.70 mmHg (95% CI: 5.18–10.21) in cumulative SBP and 6.53 mmHg (95% CI: 4.68–8.38) in cumulative DBP, while class 3 exhibited increases of 14.10 mmHg (95% CI: 10.56–17.64) in cumulative SBP and 12.64 mmHg (95% CI: 10.03–15.25) in cumulative DBP, compared with class 1. Regarding cumulative TyG-BMI, the HR for hypertension were 1.75 (95% CI: 1.18–2.59) for quartile 3 and 2.15 (95% CI: 1.43–3.23) for quartile 4, compared with quartile 1. In quartile 2, cumulative SBP increased by 3.99 mmHg (95% CI: 0.88–7.11) and cumulative DBP by 2.74 mmHg (95% CI: 0.45–5.02). Quartile 3 showed increases of 8.32 mmHg (95% CI: 5.09–11.54) in cumulative SBP and 7.13 mmHg (95% CI: 4.76–9.49) in cumulative DBP. Quartile 4 exhibited the highest increases, with cumulative SBP rising by 13.15 mmHg (95% CI: 9.70–16.60) and cumulative DBP by 12.20 mmHg (95% CI: 9.67–14.74). Furthermore, a linear relationship was observed between cumulative TyG-BMI and the risk of hypertension.

Conclusions

Changes in TyG-BMI and cumulative TyG-BMI were associated with an increased risk of hypertension, as well as higher cumulative SBP and DBP in Chinese middle-aged and elderly population.
Orange peel-mediated synthesis of silver nanoparticles with antioxidant and antitumor activities
Authors: Mickky Bardees , Elsaka Heba , Abbas Muhammad , Gebreil Ahmed , Shams Eldeen Reham
Published: September 2024

Orange (Citrus sinensis L.) is a common fruit crop widely distributed worldwide with the peel of its fruits representing about 50% of fruit mass. In the current study, orange peel was employed to mediate the synthesis of silver nanoparticles (AgNPs) in a low-cost green approach. Aqueous extracts of suitably-processed peel were prepared using different extraction methods; and their phytochemical profile was identified. Based on phytochemical screening, amount of main phytochemicals, free radical-scavenging ability, reducing power and antioxidant activity, the peel extract prepared by boiling seemed to be the most promising. Thus, major compounds of this extract were identified by gas chromatography-mass spectrometry. Potency of the peel extract to mediate the synthesis of AgNPs was then monitored by visual observation, UV-visible spectroscopy, energy dispersive X-ray analysis, transmission electron microscopy and zetametry. Color change of the reaction mixture to brown and absorption peak at 450 nm indicated AgNPs formation. Characterization of AgNPs revealed spherical shape, size of 30–40 nm, zeta potential of -18.2 mV and yield conversion of 82%. The as-synthesized AgNPs had antioxidant capacity (free radical-scavenging ability, reducing power and antioxidant activity) lower than that of the orange peel extract. However, these biogenic AgNPs had antitumor activity (IC50 of 16 ppm against HCT-116 and 1.6 ppm against HepG2 cell lines) much higher than the peel extract that was completely non-toxic to the considered cell lines.
Resolving biology’s dark matter: species richness, spatiotemporal distribution, and community composition of a dark taxon
Authors: Hartop Emily , Lee Leshon , Srivathsan Amrita , Jones Mirkka , Peña-Aguilera Pablo , Ovaskainen Otso , Roslin Tomas , Meier Rudolf
Published: September 2024

Background

Zoology’s dark matter comprises hyperdiverse, poorly known taxa that are numerically dominant but largely unstudied, even in temperate regions where charismatic taxa are well understood. Dark taxa are everywhere, but high diversity, abundance, and small size have historically stymied their study. We demonstrate how entomological dark matter can be elucidated using high-throughput DNA barcoding (“megabarcoding”). We reveal the high abundance and diversity of scuttle flies (Diptera: Phoridae) in Sweden using 31,800 specimens from 37 sites across four seasonal periods. We investigate the number of scuttle fly species in Sweden and the environmental factors driving community changes across time and space.

Results

Swedish scuttle fly diversity is much higher than previously known, with 549 putative species detected, compared to 374 previously recorded species. Hierarchical Modelling of Species Communities reveals that scuttle fly communities are highly structured by latitude and strongly driven by climatic factors. Large dissimilarities between sites and seasons are driven by turnover rather than nestedness. Climate change is predicted to significantly affect the 47% of species that show significant responses to mean annual temperature. Results were robust regardless of whether haplotype diversity or species-proxies were used as response variables. Additionally, species-level models of common taxa adequately predict overall species richness.

Conclusions

Understanding the bulk of the diversity around us is imperative during an era of biodiversity change. We show that dark insect taxa can be efficiently characterised and surveyed with megabarcoding. Undersampling of rare taxa and choice of operational taxonomic units do not alter the main ecological inferences, making it an opportune time to tackle zoology’s dark matter.
Dietary patterns and cardiorespiratory fitness in midlife and subsequent all-cause dementia: findings from the Cooper Center Longitudinal Study
Authors: Meernik Clare , Eilat-Adar Sigal , Leonard David , Barlow Carolyn E. , Gerber Yariv , Tesler Riki , Byker Shanks Carmen , Pettee Gabriel Kelley , Pavlovic Andjelka , DeFina Laura F. , Shuval Kerem
Published: September 2024

Background

Identifying lifestyle factors that independently or jointly lower dementia risk is a public health priority given the limited treatment options available to patients. In this cohort study, we examined the associations between Mediterranean or Dietary Approaches to Stop Hypertension (DASH) diet adherence and cardiorespiratory fitness (CRF) with later-life dementia, and assessed whether the associations between dietary pattern and dementia are modified by CRF.

Methods

Data are from 9,095 adults seeking preventive care at the Cooper Clinic (1987–1999) who completed a 3-day dietary record and a maximal exercise test. Alzheimer’s disease and related disorders or senile dementia (i.e., all-cause dementia) was identified from Medicare administrative claims (1999–2019). Illness-death models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for the associations between Mediterranean or DASH diet adherence (primary exposure), CRF (secondary exposure), and all-cause dementia, adjusted for demographic and clinical factors. An interaction term was included between diet score and CRF to assess effect modification by CRF.

Results

The mean age at baseline was 50.6 (standard deviation [SD]: 8.4) years, and a majority of the study sample were men (77.5%) and White (96.4%). 1449 cases of all-cause dementia were identified over a mean follow-up of 9.2 (SD: 5.8) years. Neither Mediterranean nor DASH diet adherence was associated with dementia risk in fully adjusted models (HR per SD of Mediterranean diet score: 1.00, 95% CI: 0.94, 1.05; HR per SD of DASH diet score: 1.02, 95% CI: 0.96, 1.08). However, participants with higher CRF had a decreased hazard of dementia (HR, per metabolic equivalent of task [MET] increase, Mediterranean model: 0.95, 95% CI: 0.92, 0.98; HR, per MET increase, DASH model: 0.96, 95% CI: 0.92, 0.97). No effect modification by CRF was observed in the association between diet and dementia.

Conclusions

In this sample of apparently healthy middle-aged adults seeking preventive care, higher CRF at midlife was associated with a lower risk of all-cause dementia, though adherence to a Mediterranean or DASH diet was not, and CRF did not modify the diet-dementia association. CRF should be emphasized in multimodal interventions for dementia prevention and investigated among diverse samples.
Differential susceptibility of human motor neurons to infection with Usutu and West Nile virus
Authors: Marshall Eleanor M. , Bauer Lisa , Nelemans Tessa , Sooksawasdi Na Ayudhya Syriam , Benavides Feline , Lanko Kristina , de Vrij Femke M. S. , Kushner Steven A. , Koopmans Marion , van Riel Debby , Rockx Barry
Published: September 2024

West Nile virus (WNV) and Usutu virus (USUV) are closely related flaviviruses with differing capacities to cause neurological disease in humans. WNV is thought to use a transneural route of neuroinvasion along motor neurons and causes severe motor deficits. The potential for use of transneural routes of neuroinvasion by USUV has not been investigated experimentally, and evidence from the few clinical case reports of USUV-associated neuroinvasive disease is lacking. We hypothesised that, compared with WNV, USUV is less able to infect motor neurons, and therefore determined the susceptibility of human induced pluripotent stem cell (iPSC)-derived spinal cord motor neurons to infection. Both viruses could grow to high titres in iPSC-derived neural cultures. However, USUV could not productively infect motor neurons due to restriction by the antiviral response, which was not induced upon WNV infection. Inhibition of the antiviral response allowed for widespread infection and transportation of USUV along motor neurons within a compartmented culture system. These results show a stark difference in the ability of these two viruses to evade initiation of intrinsic antiviral immunity. Our data suggests that USUV cannot infect motor neurons in healthy individuals but in case of immunodeficiency may pose a risk for motor-related neurological disease and transneural invasion.
Assessing the health status of migrants upon arrival in Europe: a systematic review of the adverse impact of migration journeys
Authors: Canova Cristina , Dansero Lucia , Destefanis Cinzia , Benna Clara , Rosato Isabella
Published: September 2024

Background

Numerous studies have explored the impact of pre- and post-migration factors on the overall health of migrant populations. The objective of this study is to enhance our understanding of additional determinants affecting migrants' health by examining the impact of the migration phase and related journeys in the European context.

Methods

We conducted a systematic review of studies published in the MEDLINE, Embase, and Scopus databases from 2003 up to January 5, 2024. We included observational studies reporting information on the health status of migrant populations recorded upon arrival in a country situated in Europe, and on the transit phase, including specific risk factors experienced during the journey or its characteristics. Title and abstract screening were performed using active learning techniques provided by ASReview software. The results of the included studies were presented qualitatively, with a focus on publications that formally assessed the association between the journey and the investigated health outcomes. The systematic review was registered on PROSPERO, CRD42024513421.

Results

Out of 11,370 records screened, we ultimately included 25 studies, all conducted since 2017. Most adopted a cross-sectional design and a quantitative approach, with relatively small sample sizes. The majority of the studies were conducted in Serbia and Italy. Only 14 of them formally assessed the association between different exposures in the transit phase and health outcomes, including mental health, well-being and quality of life, infectious and non-communicable diseases.

Conclusion

Epidemiological research focusing on the transit phase in Europe remains limited, with few available studies facing challenges related to data collection, study design and analysis, thereby limiting the interpretability and generalisability of their results. These findings underscore the need for action, prompting the development of adequate and feasible strategies to conduct additional studies focusing on migrant populations during migration journeys.
PROs for RARE: protocol for development of a core patient reported outcome set for individuals with genetic intellectual disability
Authors: van Silfhout Nadia Y. , van Muilekom Maud M. , van Karnebeek Clara D. , Haverman Lotte , van Eeghen Agnies M.
Published: September 2024

Introduction

Rare genetic neurodevelopmental disorders and intellectual disability (ID), collectively called genetic ID (GID), can profoundly impact daily functioning and overall well-being of affected individuals. To improve our understanding of the impact of GID and advancing both care and research, measuring relevant patient reported outcomes (PROs) is crucial. Currently, various PROs are measured for GID. Given the shared comorbidities across disorders, we aim to develop a generic core PRO set for children and adults with GID.

Methods and results

Developing the generic core PRO set entails the following steps: 1) providing an overview of potentially relevant PROs by scoping reviews and qualitative research; 2) integrating and conceptualizing these PROs (i.e., describing the content of the PROs in detail) into a pilot generic core PRO set; and 3) prioritizing relevant PROs by a European Delphi survey and consensus meetings.

Conclusions

This protocol presents the steps for developing a generic core PRO set for children and adults with GID. The next step involves selecting suitable patient reported outcome measures (PROMs) to adequately measure these PROs: the generic core PROM set. This generic core PROM set needs validation in the GID population, and eventually implementation in care and research, facilitating the aggregation and analysis of PRO data and guaranteeing continuous integration of the patient perspective in both care and research.