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Primary Tracheal Schwannoma with extension to the Thyroid Gland: Management
Srijana Thapa
Ranjan Sapkota

Srijana Thapa

and 3 more

June 24, 2024
INTRODUCTIONPrimary tracheal tumors are rare. Commonly tracheal neoplasms are either squamous cell carcinoma or adenoid cystic carcinoma.1Tracheal Schwannoma are extremely rare and are more often found in the lungs and bronchi.2 Schwannoma’s are tumors that originate from tumorigenic Schwann cells attributed to loss-of-function mutations of NF type2 tumor suppressor gene.3 Standard treatment has not been established yet. Endoscopic resection has been widely used as a treatment modality but recurrence has always been a possibility. Previous literature has shown that optimal treatment is surgical resection and anastomosis of the involved trachea. Cases such as multiple tracheal schwannoma,4 transmural tracheal schwannoma,2,5 transmural schwannoma of trachea compressing the esophagus6 and plexiform schwannoma involving trachea and left recurrent laryngeal nerve7have been reported which were all treated by resection and anastomosis of involved trachea.We report a similar case of transmural tracheal schwannoma with extraluminal component of tumor extending into the left lobe of thyroid. Initially Nd:YAG laser ablation was performed to relieve the airway obstruction. Patient later underwent surgical resection with end to end anastomosis of trachea with en-bloc resection of left thyroid lobe. This case has been reported in line with the SCARE criteria.8KEY CLINICAL MESSAGE : Tracheal Schwannoma are rare neoplasms and can have spectrum of clinical presentation which causes diagnostic dilemma and delay in diagnosis. So far, tracheal resection and anastomosis has been the optimal management and follow up is essential.
Failed induction of labour in early and mid-term pregnancy with complete placenta pre...
Liqiong Zeng

Liqiong Zeng

June 24, 2024
IntroductionPlacenta previa and accreta, which occur after a previous cesarean surgery, are linked to serious negative consequences for both the mother and the fetus throughout pregnancy. They also provide a significant risk of maternal mortality [1]. Disseminated intravascular coagulation, shock, and a high rate of hysterectomy can be attributed to these placental abnormalities [2]. Postpartum bleeding is mostly attributed to placenta previa and placenta accreta, which are recognized as significant contributors to maternal mortality on a global scale. The occurrence of significant bleeding during cesarean section (CS), which is difficult to anticipate and manage, poses a substantial risk to the lives of patients with placenta previa and accreta. The cesarean hysterectomy procedure is a significant therapeutic intervention for placenta previa and accreta; yet, it is imperative to use prudence during its execution [3]. Lately, there has been a significant increase in conservative management practices aimed at minimizing intraoperative hemorrhage and reducing the rate of hysterectomy, while also prioritizing the safety of both the mother and newborn after cesarean section. There is a growing utilization of the prophylactic intravascular balloon occlusion approach for the management of uncontrolled hemorrhage in patients with CS. This method involves the proactive use of a balloon to block the blood flow in the internal iliac arteries (PBOIIA) and abdominal aorta arteries (PBOAA) [4].Obstetricians face the challenge of managing fetal death during the second or third trimester in the presence of placenta previa. This is because the abruption of the placenta during labor induction can lead to uncontrollable bleeding, potentially covering the internal organs. Existing literature rarely documents the management of this condition, making it a subject of debate. It is imperative to create strategies aimed at improving antenatal diagnosis. In cases where there is suspicion of an aberrant invasion of pregnant women, it is advisable to refer them to a tertiary facility. This is because the management of maternal adenocarcinoma (MAP) necessitates a multidisciplinary approach and the involvement of an experienced team [5].Here, we present a case study of a woman who underwent two unsuccessful abortions using mifepristone and misoprostol during early pregnancy due to a lack of a birth plan. Additionally, she underwent a failed abortion using levano amniocentesis after being pregnant for over four months. Ultrasound results indicated placental previa and placental implantation. The patient underwent bilateral uterine artery embolisation and bilateral ureteral stenting before having a caesarean section to retrieve the fetus. Due to hemorrhage and hemorrhagic shock, a total hysterectomy was performed before the patient was discharged from the hospital.
Comparison of canine and human immune system response to Demodicosis
Soren Nooraei
Zahra Mohseni

Soren Nooraei

and 1 more

June 24, 2024
One of the types of external human parasites is a follicular scab called Demodex. Demodicosis is a skin disease in human and canine. Demodex mites feed on the epithelial cells of the hair follicle or sebaceous gland which found on and around the face. The host body immune system is responsible for controlling the population of parasites and Disruption of the cutaneous barrier causes stimulation of Toll-like receptors (TLRs) Consequently, Demodex chitin detect by keratinocyte TLRs. According to the results, association between Demodicosis and the HLA gene showed that individuals with the gene HLACW2 are five times more likely to develop Demodicosis than others because Nk2 and T1 cells of the adaptive immune response are reduced. In human Demodicosis, factors such as carbohydrate-like Tn antigen (expressed by Demodex) and secretion of pro-inflammatory mediators may play a role in the innate immune response. Additionally, the expression level of TLR2 was increased and TLR4, TLR6 expression was decreased. Flow cytometry analysis of blood samples collected from individuals with human Demodicosis and healthy individuals showed that in the patient group, there were more T9 and T reg cells in the blood samples and in skin homing T cell populations compared to the control group. Studies of canine Demodicosis have reported that lymphocyte populations are composed mostly of CD3+ and CD8+ T cells. The importance of the humoral immune response during primary Demodicosis has not yet been determined because no significant differences in circulatory immune were seen. It seems that the host immune system appears to recognize and tolerate the presence of these mites, although the physiological role of human Demodex mites in healthy skin remains unclear, especially the way in which they escape the innate immune system is very important.
Strain-controlled low-cycle fatigue behavior of a superalloy considering extensive te...
Lingying Luo
Wenjun Wang

Lingying Luo

and 5 more

June 24, 2024
This study aims to investigate the low cycle fatigue (LCF) behavior and fatigue life prediction method of an advanced solid solution strengthened nickel-based superalloy at various temperatures and stress concentrations. Cylindrical specimens as well as plates with three types of holes (including straight holes and inclined holes with different orientations) were designed and machined for fatigue tests. The test results revealed fatigue life decreases with the temperature increasing. Meanwhile, the fatigue lives of the plate specimens have decreased differently and are strongly dependent on the geometry and orientation of the holes. The key damage parameter related to the fatigue life was found on the strain gradient path. A criterion based on strain gradient is defined as the boundary of the damage process zone. The results show that the prediction was in good agreement with the experimental data, for the majority of the data is within a scatter band of ±2.
Measurement and simulation of hydrodynamics and mixing time in stirred tank with subm...
Yongjun WU
Yong Lin

Yongjun WU

and 2 more

June 23, 2024
The hydrodynamics and mixing characteristics of long-short blades (LSB) impeller have been investigated by particle image velocity (PIV), planar laser induced fluorescence (PLIF) and large eddy simulation (LES). The prediction accuracy of LES was assessed by the velocity distribution, tracer concentration distribution and power number. The results demonstrate that there are few stagnation zone and no zone effect in LSB stirred tank. The special design of LSB impeller leads to the up-flow in the lower region and down-flow in the upper region, which makes the pumping number of LSB impeller is better than that of single RT and dual RTs. In addition, the feed location and detecting location do not affect the homogeneity of the local mixing process, that is, the tracer diffuses rapidly to the whole tank in the axial and radial directions. The dimensionless mixing time correlation equation of LSB impeller is established.
Advancements in Deep Learning for Gall Bladder, Kidney, Liver, and Spleen Segmentatio...
Dheiver Francisco Santos

Dheiver Francisco Santos

July 01, 2024
Medical image segmentation is pivotal in modern healthcare for precise delineation of anatomical structures such as the gall bladder, kidney, liver, and spleen, facilitating accurate diagnostics and treatment planning. Deep learning, particularly convolutional neural networks (CNNs), has revolutionized this field by automating segmentation tasks with high accuracy and efficiency. This paper explores the application of deep learning techniques specific to these organs, addressing challenges like anatomical variability and image complexity. Advanced methodologies including attention mechanisms and contextual aggregation are integrated to enhance segmentation performance. The study leverages large annotated datasets to train and evaluate state-of-the-art segmentation models, aiming to improve clinical outcomes through reliable organ segmentation.
Advancing Dental Caries Detection: Deep Learning-Based Automated Radiographic Analysi...
Dheiver Francisco Santos

Dheiver Francisco Santos

July 01, 2024
Recent advancements in deep learning have revolutionized the field of dental diagnostics, particularly in the detection and characterization of dental caries from radiographic images. Dental caries, a widespread oral health issue globally, necessitates precise and timely detection methods to mitigate its impact on patient health. Traditional diagnostic methods relying on visual inspection and radiographic imaging are subjective and prone to variability. In contrast, deep learning techniques offer a promising solution by automating detection processes through learned patterns from extensive datasets. This study proposes a comprehensive methodology utilizing state-of-the-art deep learning, specifically employing the YOLOv8.2.21 model for automatic detection and segmentation of dental caries from radiographs.
“Understanding Enterococcus Biofilm: A Path to Targeted Therapy”
Muhammad Fawad Tahir
Mugdha  Tendulkar

Muhammad Fawad Tahir

and 8 more

June 23, 2024
Abstract: The prevalence of nosocomial infections is escalating due to the rise of antimicrobial-resistant ESKAPE pathogens, including Enterococcus species. This review explores the molecular intricacies governing biofilm formation in Enterococcus, shedding light on its persistent nature and implications for treatment. The study delves into genetic determinants, efflux pumps, and metabolic adaptations driving antibiotic resistance and biofilm resilience. Challenges in current therapeutic approaches are highlighted, emphasizing the need for precision medicine tailored to Enterococcus strains. The review presents emerging therapeutic strategies, including bacteriophage therapy and engineered nanoparticles. Recent advancements and experimental treatments, such as quorum sensing manipulation and omics integration, offer promising avenues for targeted interventions. In conclusion, this comprehensive review contributes valuable insights for researchers, clinicians, and policymakers in the ongoing battle against antimicrobial resistance. Keywords: ESKAPE; Pathogens; Enterococcus; Biofilm; Antimicrobial resistance
Clinical-laboratory, therapeutic and survival profile of patients with low-risk Myelo...
Cristian Weber
Tahiane  de Brum Soares

Cristian Weber

and 1 more

June 23, 2024
Introduction: Myelodysplastic Neoplasm (MDS) are a heterogeneous group of hematological malignant diseases characterized by cytopenias and by a variable risk of evolution to Acute Myeloid Leukemia (AML). Objective: To report the epidemiological profile of patients with low-risk MDS, the therapies used, and the morbidity and mortality outcomes. Methods: Data were collected from 62 patients with low-risk MDS, diagnosed between 2010 and 2020, excluding patients with secondary myelodysplasia causes. Results: The median age at the diagnosis was 66 years. The most frequently used treatment was erythropoietin (EPO), with a positive correlation between serum erythropoietin levels below 500U/L and therapeutic response, with a correlation coefficient of 0.44 using the Cramer’s V test (p<0.05). The median overall survival for very low risk, low risk and intermediate risk was 70, 82 and 32 months, and median progression-free survival was 70, 60 and 13 months, respectively. Factors associated with lower survival included platelet count <50,000/μl at diagnosis (RR of 2.54, p = 0.005) and iron overload (RR of 2.1, p = 0.02) while a sustained response to erythropoietin for more than 12 months was associated with higher survival (RR of 0.23, p <0.001). Conclusion: This study reinforces the importance of risk stratification at the time of diagnosis, highlighting its correlation with survival outcomes. It is evident the relevance of iron chelation therapy in improving the overall survival of these patients, as well as the need to investigate alternative therapies for patients with loss of response to the use of EPO in less than 12 months.
The Link Between Stigmatization, Mental Health, Disability, and Quality of Life    
Amelia Rizzo

Amelia Rizzo

and 4 more

July 01, 2024
This article explores the intricate relationship between stigmatization, mental health disability, and quality of life. Mental health disabilities, including conditions such as depression, anxiety, and schizophrenia, significantly impact individuals' daily functioning and overall well-being. Stigmatization, in its public, self, and structural forms, exacerbates these conditions, leading to social exclusion, reduced self-esteem, and limited access to essential resources. The article discusses how stigmatization negatively affects mental health and quality of life, creating a vicious cycle that perpetuates disability and suffering. Comprehensive interventions, including public education, cognitive-behavioral therapy, peer support, and policy changes, are necessary to dismantle structural barriers and reduce stigma. By fostering understanding and empathy, improving resource access, and integrating mental health care into primary health settings, we can enhance the quality of life and social integration for individuals with mental health disabilities.
SARS-CoV-2 (COVID-19) Vaccine Response in Liver Transplant Recipients
Sebastian Sterling
Yasmina Tashkent

Sebastian Sterling

and 6 more

June 23, 2024
Organ transplant recipients are at increased risk of contracting severe Covid due to their chronic immunosuppression, having both a significant increase in morbidity and mortality. Attempts to mitigate the contraction of COVID-19, the expeditious role out of the vaccines was first offered to those in this vulnerable subclass. Quickly established was the need for further booster doses to promote the immunological response in the immunosuppressed. This paper is a uni-centred study, exploring the anti-receptor binding domain (RBD) and anti-Spike immunoglobulin levels in a small subset of liver transplant recipients in Adelaide, South Australia, pre- and post 3rd administration of the SARS-CoV-2 vaccine. Peripheral bloods samples taken were compared to a group of health controls. The data showed that a minimum of three doses of the vaccine were required in the liver transplant patients, in order to express both anti-RBD and anti-Spike IgG to levels that were statistically comparable to that of healthy individuals.
Continuous infusion of magnesium sulfate: an adjuvant therapy to treat acute severe a...
Daniele de Avila Dalmora
Patricia Miranda Lago

Daniele de Avila Dalmora

and 4 more

June 23, 2024
Continuous infusion of magnesium sulfate: an adjuvant therapy to treat acute severe asthma.Daniele de Avila Dalmora (1), Patricia Miranda Lago (1), Jordana Vaz Hendler (2), João Carlos Batista Santana (1), Liane Esteves Daudt (1)Affiliation:Universidade Federal Rio Grande do Sul (Medicine School)Hospital de Clinicas de Porto AlegreCorresponding Author:Profa. Patricia Miranda LagoEmail: patmlago@gmail.comCONFLICT OF INTERESTSThe authors declare that there is no conflict of interest.To editorAsthma is a significant cause of morbidity and mortality, particularly in severe cases. In such instances, the use of intravenous magnesium sulfate has emerged as an adjuvant therapy to help manage acute exacerbations, that are unresponsive to first-line treatments. While the efficacy of magnesium sulfate in improving symptoms in asthmatic patients has been well documented, the assessment of its potential side effects in pediatric patients is limited.By investigating the side effects of continuous magnesium sulfate 6 hours infusion in a pediatric emergency department in Southern Brazil, the authors aim was to determine if treatment could be a good and safe option in severe cases.This case series study was submitted to and approved by the Ethics Committee, with registration number 23635618.1.0000.5327. All parents of children participating in the study signed an informed consent document. There were no losses during the research period. The investigation was carried out from June 2022 to May 2023, in the Emergency Department (14 beds) of a public, general and university hospital from Porto Alegre.Throughout the period of continuous magnesium sulfate infusion, all selected children were closely monitored and accompanied by emergency pediatricians. The magnesium sulfate prescription was carried out by the attending physician in accordance with the unit’s care protocol. The initial therapy management included oxygen administration via nasal catheter or Venturi mask based on saturation and/or respiratory dysfunction, single-dose oral prednisolone, and rescue nebulization with salbutamol and ipratropium, during 1 to 2 hours. The patients who didn’t improve, received the continuous infusion of 50 mg/kg/h dose of magnesium sulfate for 6 hours, with a maximum daily dosage of 8000 mg. The blood sample was collected immediately after the completion of the infusion to assess the serum magnesium levels. The asthma crise severity was classified by the modified Wood-Downes score.Patients between 3 and 14 years old with acute severe asthma were included in the study. Children who had nephropathy, heart disease, chronic pneumopathies excluding asthma, and genetic syndromes associated with pulmonary involvement were excluded.The data was collected and recorded using the institutional REDCap (Research Electronic Data Capture) system. The variables evaluated included age, gender, weight, height, serum magnesium levels, presence of side effects, presence of pneumonia, viral infection and clinical evolution assessed using the modified Wood-Downes severity score (Figure 1). The outcomes analyzed were the length of stay in the pediatric emergency room, time of oxygen supplementation, need for admission to a pediatric intensive care unit (PICU), use of ventilatory support and mortality.The authors analyzed the data using IBM SPSS Statistics version 20.0. The Kolmogorov-Smirnov test was used to assess the normality of variables. Categorical variables were presented as percentages and compared using the χ2 test. Continuous variables without asymmetrical distribution were expressed as medians and compared using the Mann-Whitney or Kruskal-Wallis tests.The study included a total of 42 patients that met the inclusion criteria, among them, 24 males (57.1%) and 18 females (42.9%). The patients mean age was 5.7 years old, with a range from 3 to 12 years. The BMI calculations showed that none of the patients were overweight or obese (BMI 17.5±2.6). Before the administration of continuous magnesium sulfate infusion for 6 hours, the score values ranged from 3 to 5 (median 4 ). And after 6-hour infusion, the scores decreased significantly to a range from 3 to 1 (median 2 ) (p < 0.001) (Table 1).There was important clinical improvement after 6 hours infusion in 30 patients (72%), as assessed by variations in the clinical severity score, with a reduction of at least 1 point. However, 12 patients (28%) did not respond to magnesium sulfate, even with adequate serum levels. There was no difference regarding the age, BMI, gender, virus detection or pneumonia, comparing responsive and unresponsive children. The study methodology considered as unresponsive all patients that necessitated more than once magnesium infusion, received multiple therapies like intravenous salbutamol, had no improvement in clinical scores, required intensive care in the Pediatric Intensive Care Unit (PICU) and/or ventilatory support.The magnesium serum level after infusion was 4.7 mg/dl (no difference between respond or not). The length of stay median in the pediatric emergency department was 2 days, with an interquartile range of 2 to 4. It is important to mention that none of the patients required respiratory support.Concerning to the side effects, no events were reported during or after the 6-hour intravenous infusion of magnesium sulfate, as nausea, drowsiness, vision changes, muscle weakness or other neurological symptoms, hypotension, respiratory distress, arrhythmia, and burning sensation or redness in the application route. There were no statistical differences between cardiac frequency and systolic blood pressure during infusion (2,4 and 6 hours), but a significant reduction in respiratory rate was detected (Figure 1).The asthma management in the emergency service necessitates prompt action to reverse symptoms and avoid respiratory failure. The standard therapy approach involves repeated administration of bronchodilators and corticosteroids, but in some cases, it is not enough for clinical improve. An Intravenous magnesium sulfate had been employed in cases of acute severe asthma that do not respond to initial management (1,2)The Magnesium sulfate induces muscle relaxation, leading to bronchodilation, and presents a rapid onset of action. To maintain a sustained relaxation effect, continuous infusion is required, otherwise its use is limited by its short half-life of 2.7 hours. In the asthma treatment, the Magnesium can be administered as a single-dose bolus. However, to obtain a prolonger effect, the administration via continuous infusion emerged as an attempt to compensate for its rapid renal elimination (3-6).This case series that evaluated 42 patients with acute severe asthma treated with a 6-hour infusion of magnesium sulfate showed clinical response by an improved Wood-Downes severity score at the end of the infusion as described by Gross and Irazuzta, and no side effects, that wasn’t study yet for other authors (3,4).It is important observed that this research is a case series performed in a single center, with a limited number of patients. Despite the study limitations, the results corroborate findings of other researches in the medical literature (3-6). The use of continuous infusion of magnesium sulfate for 6-hours emerged as an interesting treatment option to the management of acute severe asthma, showing safety as analyzed by the side effects, and resulting in better clinical outcomes. The authors believe that further multicenter and randomized studies with larger sample size are recommended to confirm efficacy and safety.FIGURE 1 Evolution of vital signs during the infusion
A Data-Driven Transient Stability-Based Approach for Out-of-Step Prediction in Power...
Sirwan Shazdeh
Hêmin  Golpîra

Sirwan Shazdeh

and 2 more

June 24, 2024
This paper presents a decentralized prediction-based algorithm designed to address out-of-step (OOS) conditions in power systems. The algorithm utilizes generator data obtained from phasor measurement units. The transient stability of a multi-machine power system is evaluated using the equal-area criterion (EAC). The proposed algorithm calculates the characteristics of the P-δ curves within the EAC framework after a large disturbance. The critical P-δ trace is determined by analyzing the cumulative energy in the acceleration area following fault clearance. The stability margin of the rotor angle is then computed based on the actual active power and its relationship with the critical curve. The algorithm predicts the occurrence of OOS by comparing the measured active power with the corresponding value on the critical curve. The effectiveness of the proposed algorithm is validated through simulations conducted on the 73-bus IEEE test power system.
Determination of predictive factors for failure of high-flow nasal cannula (HFNC) the...
Derşan Onur
Gulhan Atakul

Derşan Onur

and 2 more

June 23, 2024
Objective: Although high-flow nasal cannula (HFNC) is a commonly used treatment method to manage respiratory distress in children, it may still result in treatment failure requiring advanced airway support. Such treatment failure can lead to increased morbidity and mortality. In light of this, a cross-sectional observational study was conducted in a pediatric intensive care unit (PICU) to identify predictive factors associated with HFNC failure in children. Materials and methods: A total of 187 patients aged between one month and 18 years with moderate to severe respiratory distress treated with HFNC therapy in the PICU between October 2018 and January 2020 were included in the study. Patients with chronic lung disease and cyanotic congenital heart disease were excluded. Clinical assessments included respiratory scores, relevant laboratory data, and treatment outcomes. In the statistical analysis, data variables were evaluated using the Mann–Whitney U test, χ2 test, receiver operating characteristic, and multivariate logistic regression analysis. Results: Analysis of 114 patients revealed a HFNC treatment failure rate of 31.6%. Multivariate logistic regression revealed that the presence of medical comorbidities (OR: 25.8, 95% CI: 2.61-254.5, p=0.005), an increased mRDAI score at the first hour of HFNC therapy (OR: 2.9, 95% CI: 1.32-6.48, p=0.008), and higher PRISM scores (OR: 2.1, 95% CI: 1.44-3.07, p<0.001) were significant predictors of HFNC failure. Conclusions: This study underscores the importance of early identification of predictive factors for HFNC therapy failure to improve management strategies and patient outcomes in pediatric patients with respiratory distress.
Geographic patterns of intra- and interspecific diversity of riverine fish species in...
Dominik Kirschner
Gabrielle Vance

Dominik Kirschner

and 8 more

June 23, 2024
Understanding the intricate dynamics of biodiversity within and across riverine ecosystems, influenced by geological history and environmental factors, is crucial for effective conservation and management strategies. Italy, particularly the Ligurian region, harbors diverse freshwater fish communities and populations shaped by unique geological and hydrological conditions. Here, we investigated the suitability of eDNA-metabarcoding to identify inter- and intraspecific diversity patterns of riverine fish populations along the main drainage divide (MDD) between the Adriatic and Ligurian basins in Northern Italy. We collected 96 aquatic eDNA samples across 48 riverine sites, amplified them using a cytb primer pair and denoised the sequences to retrieve amplicon sequence variants (ASV). We calculated communities’ phylogenetic distance with betaMPD based on genetic distances derived from the ASVs, combined them with conductance-based landscape metrics and applied generalized dissimilarity models (GDM) to assess spatial genetic structure. Our results reveal genetic differentiation among populations of several fish species, with some displaying clustering patterns across the drainage divide and isolation by distance patterns. Overall, taxon richness was significantly higher in the Ligurian sites (25) than in the Adriatic side of the MDD (22), as was ASV richness (205 vs. 196). Our findings highlight the effectiveness of eDNA-metabarcoding in uncovering various facets of diversity, shedding light on hidden genetic diversity within ASVs, and revealing significant spatial genetic structuring in freshwater fish populations across multiple species.
Exploring the Dynamics of Sports Car Pricing: An Analytical Approach Using Machine Le...
Rasha J.H.Habeeb
Olusolade Aribake Fadare

Rasha J.H.Habeeb

and 2 more

June 23, 2024
The pricing dynamics of sports cars are influenced by a complex interplay of technical specifications and market perceptions. This paper presents a comprehensive analysis using machine learning models to uncover the relationships between various car features and their impact on pricing. We employed linear regression, decision trees, and random forests to predict sports car prices based on features such as torque, horsepower, engine size, acceleration metrics, and model year. The study revealed that while technical features like torque and horsepower significantly affect prices, non-technical factors such as brand prestige and the allure of vintage models also play crucial roles. Our results demonstrate that tree-based models, specifically decision trees and random forests, provide high predictive accuracy, capturing complex non-linear relationships better than linear models. These models effectively highlighted the predominant influence of performance-related features while also suggesting the significant impact of intangible factors like brand and historical value. This study opens the door for future research to integrate broader variables, including consumer behavior and economic conditions, to refine the understanding of pricing strategies in the sports car market. By leveraging advanced machine learning technique.( Abstract )
Lung Ultrasound Scores Predict Extubation Readiness in Acutely and Chronically Ventil...
Madhavi Singhal
Kate Feinstein

Madhavi Singhal

and 4 more

June 23, 2024
Objective: Very low birth weight (VLBW) infants often require invasive mechanical ventilation. However, determining when infants should be extubated remains a clinical decision, and extubation trials often fail. Bedside lung ultrasound (LUS) scoring in VLBW infants allows assessment of lung aeration. Lung ultrasound scores may be helpful in determining the success of an extubation attempt. We assessed the utility of the LUS score to predict extubation readiness in VLBW infants and assessed the effect of postnatal steroids on lung ultrasound scores in babies who were ventilated for > 30 days. Study Design: Study participants were invasively mechanically ventilated VLBW infants. We measured infants’ LUS scores before planned extubations, determined the success of the extubation attempt and compared scores between successfully and unsuccessfully extubated infants. Results: VLBW infants (N=45), with gestational age 27±2 weeks and birth weight 858±289 grams, were studied. LUS scores were lower in successfully extubated infants (median 5, IQR 2-8) compared with those of unsuccessfully extubated infants (12, IQR 9.12; p=0.001). No infant with LUS <7 failed extubation. LUS scores were higher in babies ventilated >30 days (median 10, IQR 7-12) compared with babies ventilated <30 days (4; IQR 2-8, P<0.005). In infants ventilated > 30 days, LUS scores did not differ between infants treated or not with postnatal steroids. Conclusions: Lung ultrasound scores are excellent predictors of extubation readiness in VLBW infants. Lung ultrasound scores are higher in chronically ventilated infants. Use of postnatal steroids does not affect the lung ultrasound scores at the time of extubation.
Performance of the ChatGPT Large Language Model for Decision Support in Community Pha...
Euibeom Shin
Maggie Hartman

Euibeom Shin

and 2 more

June 23, 2024
Purpose: To assess the ChatGPT-4 (ChatGPT) large language model (LLM) on tasks relevant to community pharmacy. Methods: ChatGPT was assessed with community pharmacy-relevant test cases involving drug information retrieval, identifying labeling errors, prescription interpretation, decision making under uncertainty and multi-disciplinary consults. Drug information on rituximab, warfarin, and St. John’s wort was queried. The decision-support scenarios consisted of a subject with swollen eyelids, and a maculopapular rash in a subject on lisinopril and ferrous sulfate. The multi-disciplinary scenarios required integration of medication management with nutrition and physical therapy. Results: The responses from ChatGPT-4 for rituximab, warfarin, and St. John’s wort were satisfactory and cited drug databases and drug-specific monographs. ChatGPT identified labeling errors related to incorrect medication strength, form, administration route, unit conversion, and directions. For the patient with inflamed eyelids, the course of action developed by GPT-4 was comparable to the pharmacist’s approach. For the patient with the maculopapular rash, both the pharmacist and ChatGPT placed a drug reaction to either lisinopril or ferrous sulfate at the top of the differential. ChatGPT provided customized vaccination requirements for travel to Brazil, guidance on management of drug allergies, and recovery from a knee injury. ChatGPT provided satisfactory medication management and wellness information for a diabetic on metformin and semaglutide. Conclusions: LLMs have the potential to become a powerful tool in community pharmacy. However, testing in validation studies across diverse pharmacist queries, drug classes, and populations, and engineering to secure patient privacy will be needed to enhance LLM utility.
The OsZIP2 transporter is involved in root-to-shoot translocation and intervascular t...
Xin-Yuan Huang
Meng-Zhen Li

Xin-Yuan Huang

and 7 more

June 23, 2024
Cadmium (Cd) is a toxic metal that poses serious threats to human health. Rice is a major source of dietary Cd but how rice plants transport Cd to the grain is not fully understood. Here, we characterize the function of the ZIP (ZRT, IRT-like protein) family protein, OsZIP2, in the root-to-shoot translocation of Cd and intervascular transfer of Cd in nodes. OsZIP2 is localized at the plasma membrane and exhibited Cd 2+ transport activity when heterologously expressed in yeast. OsZIP2 is strongly expressed in xylem parenchyma cells in roots and in enlarged vascular bundles in nodes. Knockout of OsZIP2 significantly enhanced root-to-shoot translocation of Cd and alleviated the inhibition of root elongation by excess Cd stress; whereas overexpression of OsZIP2 decreased Cd translocation to shoots and resulted in Cd sensitivity. Knockout of OsZIP2 increased Cd allocation to the flag leaf but decreased Cd allocation to the panicle and grain. We further reveal that the variation of OsZIP2 expression level contributes to grain Cd concentration among rice germplasms. Our results demonstrate that OsZIP2 functions in root-to-shoot translocation of Cd in roots and intervascular transfer of Cd in nodes, which can be used for breeding low Cd rice varieties.
Extraction of 6-year-old leadless pacemaker (MICRA) using commercially available remo...
Lidia Chmielewska-Michalak
Adrian Gwizdała

Lidia Chmielewska-Michalak

and 6 more

June 23, 2024
In recent years, the number of patients with implanted leadless pacemaker has increased significantly. Due to the small size of the device, low risk of infection, indications for removal are rare. The dwell time is correlated with extraction difficulty. Although the MICRA TPS contains retrieval feature at the proximal part of the device, the manufacturer (Medtronic) does not offer tools dedicated to this procedure. Complete encapsulation of the device may also make removal difficult or even impossible. We present the case of a patient in whom MICRA TPS was successfully removed 70 months after implantation with non-dedicated commercially available tools.
Comparative Effectiveness of Statins and Omega-3 Fatty Acids in Modulating Triglyceri...
Shivam Patel

Shivam Patel

June 23, 2024
There was enough evidence to show that both statins and ω−3 fatty acids, reduce triglyceride levels in type 2 diabetes patients. However, when it comes to the reduction of cardiovascular outcomes, the pooled relative risk from statins showed no significant reduction in cardiovascular outcomes from the baseline as opposed to ω−3 fatty acids, which indicated a significant decrease. The benefits of using statins in T2DM patients were outweighed by the side impacts as opposed to the usage of n-3. : Concerning type 2 diabetes patients, we found that ω−3 fatty acids were the best choice of medication in reducing triglyceride levels and cardiovascular outcomes.
Successful Radiofrequency Catheter Ablation of a Concealed Accessory Pathway in Mesoc...
Marcos Javier Duarte-Sau
José Cruz Arzola-Hernández

Marcos Javier Duarte-Sau

and 1 more

June 23, 2024
A document by Marcos Javier Duarte-Sau. Click on the document to view its contents.
PP2A dependent and independent effects of forskolin in KMT2A (MLL)-rearranged acute l...
Yoana Arroyo-Berdugo
Antonella Di Mambro

Yoana Arroyo-Berdugo

and 11 more

June 23, 2024
Background and purpose Activation of Protein Phosphatase 2A (PP2A), via genetic and pharmacologic modulation of SET, has recently being identified as a promising strategy to therapeutically target acute myeloid leukaemia (AML) carrying KMT2A (MLL) chromosomal translocations (KMT2A-r AML). In this study we investigated the expression of PP2A subunits and the therapeutic potential of forskolin, a cAMP elevating natural compound reported as a PP2A activator. Key results Our data show that PPP2CA is abundantly expressed in KMT2A-r AML cells. Treatment with forskolin arrests proliferation, induces cell death, represses the expression of MYC, HOXA9 and HOXA10 and attenuates the activity of ERK1/2 in KMT2A-r AML cells. Forskolin increases sensitivity to standard-of-care daunorubicin in KMT2A- AML cell lines and PDX. Silencing PPP2CA partially rescues the cytotoxic effect of forskolin, stimulates ERK1/2, inhibits GSK3β, abolishes the forskolin-mediated repression of MYC, but it did not affect the potentiation of response to daunorubicin. This effect was also not dependent on increase of cAMP, but it was due to increase in the intracellular accumulation of daunorubicin, through inhibition of drug efflux pump P-glycoprotein 1 (multidrug resistance protein). Conclusions and implications In conclusion, our findings highlight a novel mechanism of action for forskolin and support a potential role of this natural compound in combination with current conventional agent daunorubicin in the treatment of KMT2A-r A
Contraceptive Use in the Gaza Strip: A Systematic Review
Albany LAGORE
Suha KRIDLI

Albany LAGORE

and 2 more

June 23, 2024
Background: Between 2017-2019, the average total fertility rate in Gaza was 3.9 births per woman, which is significantly higher than the average global total fertility rate at 2.4 births per woman in 2018. Reliable family planning methods allow women and men to avoid unintended pregnancies and reduce maternal mortality. Purpose: The purpose of this systematic review was to examine what is known about contraceptive use in the Gaza Strip, including: 1) common contraceptive methods used, 2) access to contraceptive services, and 3) barriers impacting family planning services. Methods: The review was conducted using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Articles published in the English language within the last 10 years (2013 to 2023) were screened from the following databases: CINAHL, PubMed, and Google Scholar. Results: Seven articles were included in the final analysis. The United Nations Relief and Works Agency for Palestine Refugees in the Near East (UNRWA) was found to be the main family planning service provider in the Gaza Strip (61%). Intrauterine devices (35.4%) were found to be the main method of contraception. Factors identified that impact contraceptive use included: 1) access to contraceptives, 2) cultural beliefs, 3) demographic characteristics (e.g., occupation and education), and 4) healthcare provider (HCP) and system influence. Implications: The restriction of goods into the Gaza Strip continues to impact contraceptive accessibility. Educational interventions should focus on addressing contraceptive misconceptions among Gazan women and HCPs while giving special attention to cultural beliefs (e.g., desire for several children) and demographic characteristics, specifically relating to occupation and education status. Conclusion: Unintended pregnancies are preventable through the effective use of contraceptives. Future studies should prioritize interventions aimed at overcoming barriers to contraceptive use in the Gaza Strip, thereby promoting and safeguarding Gazan individuals’ ability to exercise their reproductive health rights freely.
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