bluuebunny/crossref_metadata_2025_split huggingface dataset:
18F-NaF uptake on vascular PET imaging in symptomatic versus asymptomatic atherosclerotic disease: A meta-analysis
Authors: Bhakta Shiv , Chowdhury Mohammed M , Tarkin Jason M , Rudd James HF , Warburton Elizabeth A , Evans Nicholas R 
Published: October 2024

Introduction: 18F-sodium fluoride (NaF) positron-emission tomography (PET) is increasingly being used to measure microcalcification in atherosclerotic disease in vivo. Correlations have been drawn between sodium fluoride uptake and the presence of high-risk plaque features, as well as its association with clinical atherosclerotic sequelae. The aim of this study was to perform a meta-analysis of NaF uptake on PET imaging and its relation to symptomatic and asymptomatic disease. Methods: A systematic review was performed according to PRISMA guidelines, via searching the Ovid MEDLINE, Ovid Embase, Cochrane Library, PubMed, Scopus, and Web of Science Core Collection databases up to May 2024. The search strategy included the terms ‘NaF’, ‘PET’, and ‘plaque’, and all studies with data regarding the degree of microcalcification, as measured by 18F-NaF uptake in symptomatic and asymptomatic atherosclerotic plaques, were included. Analysis involved calculating mean differences between uptake values and comparison using a random-effects model. Results: A total of 16 articles, involving 423 participants, were included in the meta-analysis (10 carotid artery studies, five coronary artery studies, and one in peripheral vascular disease). Comparing 18F-NaF uptake in symptomatic versus asymptomatic atherosclerotic plaques, a mean difference of 0.43 (95% CI 0.29 to 0.57; p < 0.0001, I2 = 65%) was noted in studies comparing symptomatic and asymptomatic plaques in the same participant, with a significant difference in effect based on arterial territory studied (χ2 = 12.68, p = 0.0018). In studies of participants with and without symptomatic disease, there was no significant difference between symptomatic and asymptomatic plaques (mean difference 0.27, 95% CI −0.26 to 0.80, p = 0.28, I2 = 85%). Conclusions: PET imaging using 18F-NaF can detect differences in microcalcification between symptomatic and asymptomatic atherosclerotic plaques within, but not between, individuals, and thus, is a marker of symptomatic disease. The standardization of 18F-NaF PET imaging protocols, and its future use as a risk stratification tool or outcome measure, requires further study. (PROSPERO Registration ID: CRD42023451363)
First-In-DOg HISTotripsy for Intracranial Tumors Trial: The FIDOHIST Study
Authors: Vezza Christina , Ruger Lauren , Langman Maya , Vickers Elliana , Prada Francesco , Sukovich Jonathan , Hall Timothy , Xu Zhen , Parker Rell L. , Vlaisavljevich Eli , Rossmeisl John H. 
Published: October 2024

Objective Brain tumors represent some of the most treatment refractory cancers, and there is a clinical need for additional treatments for these tumors. Domesticated dogs are the only other mammalian species which commonly develop spontaneous brain tumors, making them an ideal model for investigating novel therapies. Histotripsy is a non-thermal ultrasonic ablation method that emulsifies tissue through acoustic cavitation. The primary objectives of this prospective study were to assess the feasibility and safety of histotripsy to ablate naturally occurring canine brain tumors. Secondary endpoints included characterization of magnetic resonance imaging (MRI) responses to histotripsy treatment, and exploratory immunogenomic tumor response analyses. Methods The study design utilized a treat and resect paradigm, where tumors were approached using craniotomy, partially ablated with histotripsy delivered through the cranial defect, imaged with MRI, and then resected. Dogs were evaluated with clinical, brain MRI, immunopathologic, and genomic examinations before treatment, intraoperatively, and 1, 14, and 42 days post-treatment. Here we report the results of the three dogs with meningiomas, all of which were treated with a custom eight element 1 MHz histotripsy transducer at a pulse repetition frequency of 100 Hz and a treatment dosage of 400 pulses/point. Results Histotripsy was successfully delivered to all dogs, resulting in histopathologic evidence of ablations that were sharply demarcated from untreated tumor, with measured treatments approximating planned volumes in 2/3 dogs. One dog experienced an adverse event consisting of transient cerebral edema that was possibly attributable to histotripsy. Histotripsy ablations could be grossly visualized and identified on MRI, with features consistent with hemorrhage and necrosis. Significant expression or upregulation of the damage associated molecular pattern HMGB1, cytokine-cytokine receptor interaction, and NF-κb signaling pathways were observed in histotripsy treated tumors. Conclusion Ablation of canine meningiomas with histotripsy through an open cranial window was feasible and clinically well tolerated.
Fat mass and obesity-related protein contributes to the development and maintenance of bone cancer pain in rats by abrogating m6A methylation of RNA
Authors: Liu Beibei , Meng Danyang , Luo Man , Xu Longsheng , Yao Ming 
Published: October 2024

Effective prevention and treatment options for bone cancer-related pain (BCP) are lacking. In recent years, numerous studies have investigated the association between m6A epigenetic modifications and pain, revealing their significant role in pain initiation and maintenance. This study aimed to provide theoretical support for the treatment of BCP and to identify target drugs for future development. Specifically, we investigated the involvement of fat mass and obesity-related protein (FTO) in rat models of BCP by administering varying doses (1/5/10 mg/kg) of the FTO inhibitor meclofenamic acid (MA) and assessing changes in mechanical sensitivity through domain analysis, gait analysis, and open-field experiments. After successfully establishing the BCP model, we verified it by performing mechanical sensitivity assessments. We observed significantly increased expression levels of the demethylase FTO within the spinal dorsal horn accompanied by decreased m6A methylation levels in the model. Compared with untreated BCP rats, remarkably improved behavioral responses indicative of reduced pain were observed in the model rats after administration of 10 mg/kg MA, concomitant with decreased expression levels of FTO and increased m6A methylation levels. Compared with untreated BCP rats, the expression levels of p-ERK and pro-inflammatory cytokines were also significantly decreased after MA administration. Taken together, FTO can downregulate m6A methylation level and activate ERK/inflammatory cytokines signaling pathway to maintain BCP in rats.
Age-related differences in progression patterns, follow-up strategies, and postoperative outcomes in locally advanced rectal cancer: insights from a large-scale validated study
Authors: Yu Yilin , Wu Haixia , Qiu Jianjian , Hong Liang , Wu Shiji , Shao Lingdong , Lin Cheng , Wang Zhiping , Wu Junxin 
Published: October 2024

Background: Locally advanced rectal cancer (LARC) presents significant treatment challenges, particularly as patient age may influence disease progression and treatment response. Understanding the differences in progression patterns and treatment outcomes between older patient (OP) and non-older patient (NOP) is essential for tailoring effective management strategies. Objectives: We aimed to explore the differences of progression pattern, postoperative treatment, and survival outcome between OP and NOP groups in LARC. Design/Methods: The random survival forest model was used to determine the probability of time-to-event occurrence every 3 months. Patients in the NOP and OP group were both categorized into three risk groups based on progression-free survival nomogram scores. We employed inverse probability of treatment weighting (IPTW) analysis and the Surveillance, Epidemiology, and End Results (SEER) database to verify our findings. Results: Our results revealed that Groups 1, 2, and 3 experienced peaks in progression within the first 24 months in NOP group. As for OP group, Group 4 reached a progression peak at the 18th month, Group 5 at the 12th month, and Group 6 at the 9th month. In NOP group, high-risk patients who underwent postoperative chemotherapy had significantly improved overall survival compared to those who did not. Additionally, postoperative chemotherapy did not significantly improve prognosis for patients in low-, moderate-, or high-risk groups of OP group. Finally, the validation results of IPTW analysis and SEER database showed compliance with our findings. Conclusion: For NOP group, we recommended close follow-up during the first 2 years. As for OP group, it was suggested to conduct close follow-up at the 18th, 12th, and 9th month for low-, moderate-, and high-risk groups, respectively. Furthermore, postoperative chemotherapy can provide survival benefits for patients in high-risk group of NOP group. However, OP group patients should be informed that the potential benefits of postoperative chemotherapy may be minimal.
Development of the “LAser Surgical skills Evaluation for Residents” (LASER) Scale Through a Modified Delphi Method
Authors: Sédillot-Daniel E. , Melkane A. , Chiesa C. , Fakhry N. , Young V. N. , Smith L. J. , Lechien J. R. , Guertin L. , Olivier M. J. , Maniakas A. , Jun Lin R. , Bissada E. , Christopoulos A. , Ayad T. , Leclerc Andrée-Anne 
Published: October 2024

Background The CO2 laser is frequently used during microlaryngeal surgery (MLS) for a variety of pathology including laryngeal malignancy and stenosis. Learning how to use the laser safely is part of the curriculum for every otolaryngology resident. However, assessment of laryngoscopy technical skills can be challenging for supervisors, making it difficult to adequately provide feedback to trainees. Objectives “LAser Surgical skills Evaluation for Residents” (LASER) Scale aims to facilitate the evaluation of residents’ performance and promote constructive feedback. Methods The initial evaluation grid was based on a literature review of CO2 laser laryngoscopy (with an emphasis on indications, technique, safety, and efficacy) using Covidence systematic review software (Veritas Health Innovation). The final version was produced after 4 rounds of Delphi surveys. Results This study was an international collaboration including 15 otolaryngologists with either laryngology or head and neck surgery subspecialties. Panelists were based in Canada (8), the United States (3), France (1), Spain (1), Belgium (1), and Lebanon (1). The process involved 4 rounds of Delphi surveys. Assessment categories included: anesthesia considerations, pre- and perioperative laser safety measures, and surgical technique. Consensus was reached on final survey completion. Conclusions Through a modified Delphi method, a novel scale was developed through an international collaborative effort that evaluates resident skillset in CO2 laser MLS. Future studies are warranted to validate this assessment tool.
A Single Intratympanic Triamcinolone Acetonide Administration Elicits Long-Term Reduction in Impedances Following Cochlear Implantation
Authors: Nieratschker Michael , Liepins Rudolfs , Honeder Clemens , Auinger Alice Barbara , Gausterer Julia Clara , Baumgartner Wolf-Dieter , Riss Dominik , Arnoldner Christoph , Dahm Valerie 
Published: October 2024

Background Intracochlear fibrosis and inflammation remain important limitations in cochlear implantation (CI). Glucocorticoids are routinely used to ameliorate the inflammatory response following CI. This study investigates the long-term effects of an intratympanically-applied triamcinolone-acetonide suspension on intracochlear impedance changes in CI recipients and investigates differences in drug concentrations and timepoints of injection. Methods A total of 87 patients were included in the study, of whom 39 received an intratympanically-applied triamcinolone-acetonide suspension at either 10 or 40 mg/ml, 1 hour or 24 hours prior to cochlear implantation, while 48 patients served as an untreated control group. Electrode impedances were measured and compared over a period of 3 years following cochlear implantation. Results The preoperative intratympanic application of a triamcinolone-acetonide suspension resulted in significantly lower mean impedances following cochlear implantation compared with an untreated control group at first fitting (4.66 ± 1.3 kΩ to 5.90 ± 1.4 kΩ, P = .0001), with sustained reduction observed over 3 months. A sustained reduction was observed after spatial grouping of the electrode contacts, with significant improvements in both the middle cochlear region over a 24 month period (from 3.97 ± 1.3 kΩ to 5.85 ± 1.3 kΩ, P = .049) and the basal region over a 6 month period (from 5.02 ± 1.3 kΩ to 5.85 ± 1.3 kΩ, P = .008). The injection of 10 mg/ml of triamcinolone-acetonide 1 hour prior to cochlear implantation resulted in higher impedances compared with 40 mg/ml and 24 hour time interval until surgery. Conclusion A single preoperative intratympanic injection of triamcinolone-acetonide significantly reduces electrode impedances across the entire cochlea. This effect is sustained for up to 2 years, after which impedances gradually equalize between the groups. A preoperative triamcinolone-acetonide injection could therefore be a favorable approach to attenuate the immediate tissue response following cochlear implantation.
GLP-1 Receptor Agonists in Overweight and Obese Individuals With Type 1 Diabetes Using an Automated Insulin Delivery Device: A Real-World Study
Authors: Holmager Pernille , Christensen Merete Bechmann , Nørgaard Kirsten , Schmidt Signe 
Published: October 2024

Introduction: Automated insulin delivery (AID) systems have improved glycemic control in individuals with type 1 diabetes (T1D) but overweight and increased cardiovascular risk remain a challenge. Glucagon-like peptide-1 receptor agonists (GLP-1 RAs) are associated with improved cardiometabolic profile but are currently not approved for the treatment of T1D. Material and methods: Individuals with T1D at Steno Diabetes Center Copenhagen, Denmark, treated with AID and off-label GLP-1 RA for at least six months between January 2017 and May 2024 were included in a retrospective chart review study. Results: Nineteen individuals with (median [range]) age 42 (24-60) years were included. At GLP-1 RA initiation, hemoglobin A1c (HbA1c) was 7.3% (6.1%-8.7%), HbA1c 56 (43-72) mmol/mol, body weight 91.5 (78.0-115.0) kg, and body mass index 35.4 (27.0-42.0) kg/m2. Time in range was 74% (29%-82%), time above range 25% (18%-71%) while time below range was 1% (0%-5%). After six months of treatment, body weight changed −11% (−22% to −3%; P = .001) and total daily insulin dose changed −15.1 (−32.5 to −8.2) IU ( P = .004). There were no significant changes in HbA1c or other glucose measures. One person developed ketoacidosis caused by infusion set failure, but none reported severe hypoglycemia. Conclusion: Glucagon-like peptide-1 receptor agonist as add-on therapy for six months in individuals with obesity and AID-treated T1D led to considerable weight loss and a reduction in insulin dose.
The early diagnostic value of serum renalase level in diabetic kidney disease and diabetic macroangiopathy: a retrospective case–control study
Authors: Jin Li , Wang Wensu , Zhang Rong , Shen Jianguo , Li Yangyang , Zhang Yi 
Published: October 2024

Background: Diabetic kidney disease (DKD) is a severe complication of diabetes mellitus and is associated with an increased risk of end-stage renal disease (ESRD) and cardiovascular events. Early diagnosis and monitoring of DKD are crucial for implementing appropriate interventions. This study aimed to investigate the relationship between serum renalase (RNLS) levels, DKD, and diabetic macroangiopathy in patients with type 2 diabetes mellitus (T2DM). Objectives: This study aims to evaluate the diagnostic value of serum renalase levels in DKD and diabetic macroangiopathy. Design: This is a retrospective case–control study. Methods: A total of 233 participants were recruited for the study, including 115 T2DM patients without DKD or diabetic retinopathy, and 118 T2DM patients with DKD. Serum RNLS levels were measured using an enzyme-linked immunosorbent assay. Kidney function parameters and diabetic macroangiopathy risk factors were evaluated in relation to serum RNLS levels. Results: Serum RNLS levels were significantly higher in DKD patients compared to T2DM controls (34.82 (31.68, 39.37) vs 30.52 (28.58, 33.16), p < 0.01). Multiple linear regression analysis indicated that kidney function parameters and carotid intima-media thickness were independently related to RNLS levels. The study population was divided into four groups: no DKD and no diabetic macroangiopathy, DKD without diabetic macroangiopathy, diabetic macroangiopathy without DKD, and both DKD and diabetic macroangiopathy. Analysis results showed that patients with both DKD and diabetic macroangiopathy had the highest RNLS levels. Receiver operating characteristic curve analysis demonstrated the diagnostic value of RNLS for DKD (0.76 (95% confidence interval (CI) = 0.70–0.82, p < 0.01)) and diabetic macroangiopathy (0.75 (95% CI = 0.66–0.84, p < 0.01)). Conclusion: Circulating RNLS levels were significantly increased in patients with DKD and diabetic macroangiopathy, suggesting that RNLS may serve as an early diagnostic marker.
Altered trace elements, antioxidant vitamin C, and malondialdehyde levels are associated with the pathophysiology and development of pre-hepatic jaundice: A case-control study
Authors: Dewan Syed Masudur Rahman , Das Abhijit , Ahmed Zahra Labiba , Khan Sakif Ahamed , Nasim Rehnuma , Sarwar Md Shahid , Islam Mohammad Safiqul , Islam Md Rabiul 
Published: October 2024

Objectives: Pre-hepatic jaundice results from an imbalance between bilirubin production and clearance, often linked to hemoglobinopathies. Antioxidant vitamin C, malondialdehyde, and trace elements play roles in jaundice, yet their specific associations remain unclear. The objective is to assess and compare these biomarkers in pre-hepatic jaundice patients and healthy controls, aiming to identify potential diagnostic markers and understand distinctive characteristics related to the disease’s pathogenesis. Methods: This case–control study enrolled 50 pre-hepatic jaundice patients and 50 healthy controls, utilizing advanced techniques for biomarker quantification. We completed blood sample collection from study participants between 1 September 2023 and 31 December 2023. This study investigates the correlation between various biomarkers and pre-hepatic jaundice using serum samples with a focus on antioxidant vitamin C, malondialdehyde, and trace elements. Results: This study demonstrates elevated concentrations of malondialdehyde in patients with pre-hepatic jaundice, suggesting alterations in bilirubin metabolism and increased oxidative stress. We found that the serum levels of malondialdehyde were significantly higher in pre-hepatic jaundice patients compared to healthy controls. Our observations revealed a notable decrease in the average serum vitamin C levels in patients with pre-hepatic jaundice compared to healthy controls. The patients had lower serum Zn levels and higher serum Cu and Mn levels compared to the healthy controls. The correlation study demonstrates robust positive correlations among these biomarkers in pre-hepatic jaundice. As the levels of vitamin C rise, the levels of the other criteria often fall, and vice versa. There is an inverse relationship between higher levels of vitamin C and lower levels of malondialdehyde. The current investigation identifies possible changes in antioxidant vitamins, malondialdehyde levels, and trace elements, which provide significant insights for targeted interventions. Conclusions: The present research highlights the integrated significance of vitamin C, malondialdehyde, and trace elements in the progression of the disease.
A deep learning algorithm model to automatically score and grade obstructive sleep apnea in adult polysomnography
Authors: Park Marn Joon , Choi Ji Ho , Kim Shin Young , Ha Tae Kyoung 
Published: October 2024

Objective Polysomnography (PSG) is unique in diagnosing sleep disorders, notably obstructive sleep apnea (OSA). Despite its advantages, manual PSG data grading is time-consuming and laborious. Thus, this research evaluated a deep learning-based automated scoring system for respiratory events in sleep-disordered breathing patients. Methods A total of 1000 case PSG data were enrolled to develop a deep learning algorithm. Of the 1000 data, 700 were distributed for training, 200 for validation, and 100 for testing. The respiratory events scoring deep learning model is composed of five sequential layers: an initial layer of perceptrons, followed by three consecutive layers of long short-term memory cells, and ultimately, an additional two layers of perceptrons. Results The PSG data of 100 patients (simple snoring, mild, moderate, and severe OSA; n = 25 in each group) were selected for validation and testing of the deep learning model. The algorithm demonstrated high sensitivity (95% CI: 98.06–98.51) and specificity (95% CI: 95.46–97.79) across all OSA severities in detecting apnea/hypopnea events, compared to manual PSG analysis. The deep learning model's area under the curve values for predicting OSA in apnea-hypopnea index ≥ 5, 15, and 30 groups were 0.9402, 0.9388, and 0.9442, respectively, showing no significant differences between each group. Conclusion The deep learning algorithm employed in our study showed high accuracy in identifying apnea/hypopnea episodes and assessing the severity of OSA, suggesting the potential for enhancing both the efficiency and accuracy of automated respiratory event scoring in PSG through advanced deep learning techniques.
Money in Politics: How Does It Affect Election Outcomes?
Authors: Le Thanh , Onur Ilke , Sarwar Rubayat , Yalcin Erkan 
Published: October 2024

We study how campaign funding influences winning chances of candidates using the US House of Representatives elections in all 50 states and Washington D.C. from 2000 to 2018. We find a positive and statistically significant relationship between campaign expenditure, campaign contributions and winning probability. However, incumbent spending is less effective than contender spending due to diminishing returns for the former. We also scrutinize the gap between campaign expenditure and contributions made by special interest groups. The winning probability of incumbent candidates does not necessarily decrease even if they spend less than the funds received for the election campaigns. Obtained results are robust to alternative econometric specifications, estimation methods, the correction of possible endogeneity of campaign funding and sample sizes. Our results, therefore, show the variation in the effectiveness of campaign spending contingent on incumbency status and imply the social welfare diminishing effects of spare funds received by incumbents from special interest groups. JEL Classification: D72, P16.