Covalent organic frameworks (COFs) core@shell nanohybrids: Novel nanomaterial support towards environmental sustainability applications.

Covalent organic frameworks (COFs) based on core@shell nanohybrids have recently received significant attention and have become one of the most promising strategies for improving the stability and catalytic activity of COFs. Compared with traditional core@shell, COF-based core@shell hybrids own remarkable advantages, including size-selective reactions, bifunctional catalysis, and integration of multiple functions. These properties could enhance the stability and recyclability, resistance to sintering, and maximize the electronic interaction between the core and the shell. The activity and selectivity of COF-based core@shell could be simultaneously improved by taking benefit of the existing synergy between the functional encapsulating shell and the covered core material. Considering that, we have highlighted various topological diagrams and the role of COFs in COF-based core@shell hybrid for activity and selectivity enhancement. This concept article provides all-inclusive advances in the design and catalytic applications of COF-based core@shell hybrids. Various synthetic techniques have been developed for the facile tailoring of functional core@shell hybrids, including novel seed growth, in-situ, layer-by-layer, and one-pot method. Importantly, charge dynamics and structure-performance relationships are investigated through different characterization techniques. Different COF-based core@shell hybrids with established synergistic interactions have been detailed, and their influence on stability and catalytic efficiency for various applications is explained and discussed in this contribution. A comprehensive discussion on the remaining challenges associated with COF-based core@shell nanoparticles and research directions has also been provided to deliver insightful ideas for additional future developments.

Evaluation of Chemotherapy Induced Peripheral Neuropathy, Sarcopenia and Fatigue in Children with Acute Lymphoblastic Leukaemia and Lymphoma in Tertiary Care Hospital, Dakshina Kannada.

Objectives: The study aims to assess the proportion and magnitude of chemotherapy-induced peripheral neuropathy (CIPN) and other common complications reported in children with acute lymphoblastic leukaemia (ALL)/ acute lymphoblastic lymphoma (LBL) undergoing chemotherapy. Material and Methods: The study included children between 5 and 18 years old with ALL/LBL undergoing chemotherapy in Tertiary Care Hospitals, Mangalore. The study was conducted using various instruments, including paediatric-modified total neuropathy scale for CIPN, handheld dynamometer for muscle strength, bioimpedance analyser for muscle mass, timed up-and-go test for physical performance, and national comprehensive cancer network (NCCN) guidelines for scoring cancer-related fatigue at 3-time points. The collected data were analysed by IBM Statistical Package for the Social Sciences version 29 using Z-scores with standard deviation for distinct ALL/LBL types. In addition, the Paired t-test compared the baseline outcome to the 3rd and 6th time points. Results: The study evaluated 25 children with ALL undergoing chemotherapy based on the UKALL 2003 protocol during their maintenance phase. The study found that 25 children experienced CIPN, with changes in sensory and pin sensibility scores at 3 and 6 months. The study found a significant change in handgrip strength, body mass index, and muscle mass at 3 months, with no significant change in physical performance over time. Fatigue scores increased from baseline to 3 months, with significant changes observed for the 7-12 years age group at 3 months but not for the 5-6 years age group at 6 months. Conclusion: Children with ALL/LBL undergoing chemotherapy experience CIPN and other side effects such as sarcopenia and fatigue. The study highlights the potential benefits of physiotherapy interventions and supportive care strategies aimed at managing the adverse effects of chemotherapy in children with ALL/LBL.

Effect of fluorescence quenching model on quinoline derivative with cobalt chloride metal ion using steady state and time resolved spectroscopic methods.

Quinoline derivative, i.e. quinilone yellow with the scientific name [sodium 2-(2,3-dihydro-1,3-dioxo-1H-inden-2-yl)quinoline-6,8-disulphonate] (SQDS) is analysed for fluorescence resonance energy transfer (FRET). Fluorescence quenching mechanism is studied by employing steady state and transient state spectroscopic measurements. Cobalt chloride is used as quencher in the present study. Linearity was observed in Stern-Volmer plots for transient state as well as steady state. This was further attributed to a mechanism of collisional quenching. Efficiency in fluorescence quenching is observed as there is a correlation between quenching constants of both transient and steady state. A significant energy transfer is reported between metal ions and SQDS molecule, according to FRET theory. Characterization results are studied and analysed. Application in the field of non-linear optics are predicted for SQDS. With Kurtz and Perry powder technique, SHG (second harmonic generation) efficiency was measured using Q-switched mode locked Nd:YAG laser emitting 1064 nm the first time with this compound.

Hot Topic: Global Burden of Treating Hypertension-What is the Role of the Emergency Department?

Hypertension (HTN) is the most common modifiable risk factor for cardiovascular disease (CVD) morbidity and mortality worldwide. Lower- and middle-income countries (LMICs) are projected to bear the vast majority of this disease burden, but local and regional health care delivery systems in these countries are ill equipped to meet this need. Emergency care is receiving increased recognition as a crucial component of public and community health. The rapid evolution of emergency care in LMICs provides a unique opportunity to develop innovative strategies, incorporating existing strengths of emergency departments, to address this paradigm shift in the disease burden associated with HTN on a global scale.

Physical therapy management for balance deficits in children with hearing impairments: A systematic review.

Childhood hearing impairment is a significant problem, associated with long-term academic, communicative and physical impairments. Studies have shown that children with hearing loss also present with balance and/or vestibular deficits along with complain of frequent falls. Various interventions have been studied to improvise postural control and balance in these children on different outcome measures. This review will provide the existing evidence on interventions to improve vestibular and/or balance functions. Three trials met our study criteria with PEDro score ≥6, and data were extracted, entered by two independent review authors. Though there was variability with regard to the focus and intensity of the intervention, subject characteristics and in outcome measures, vestibular rehabilitation has a positive influence on functional independence. Heterogeneity in the studies limits the comparisons of intervention programmes. We conclude that there was considerable evidence for a positive effect on balance outcomes among the hearing-impaired population with vestibular deficits. Further investigations of high-quality studies are needed to determine to compare interventions for improving vestibular deficits in hearing-impaired children.

Heart failure beliefs and self-care adherence while being treated in an emergency department.

BACKGROUND: Heart failure (HF) emergency department (ED) visits are commonly due to HF self-care nonadherence. OBJECTIVE: Our objective was to assess the accuracy of HF beliefs and adherence to self care in patients using an ED for acute HF. METHODS: A cross-sectional, correlational study using validated surveys of HF beliefs and self-care adherence was conducted. A multivariable regression model was used to control for significant baseline factors. RESULTS: In 195 adults, mean HF beliefs score was 2.8 ± 0.3, significantly below the accurate cutoff score of 3.0 (p < 0.001). Mean HF self-care adherence score was 5.1 (10 reflects best adherence). Of HF-related self-care behaviors, adherence was highest for taking medications without skipping or missing doses (7.8 ± 3.3) and lowest for daily weight monitoring (3.5 ± 3.5). Higher accuracy in HF beliefs was associated with higher education level (p = 0.01), younger age (p < 0.001), and choosing low-sodium restaurant foods (p = 0.04), but not with adherence to other self-care behaviors. Self-care adherence was associated with the belief that the HF care plan must be followed forever (p = 0.04), but not with other HF beliefs; and there was a trend toward lower HF self-care adherence when HF belief scores were more accurate. After controlling for significant baseline factors, HF beliefs were not associated with self-care adherence (p = 0.15). CONCLUSIONS: Patients seeking ED care for decompensated HF had inaccurate HF beliefs and poor self-care adherence. Lack of association between HF beliefs and self care (and trend of an inverse relationship) reflects a need for predischarge HF education, including an explanation of what HF means and how it can be better controlled through self-care behaviors.

The senescence accelerated mouse (SAMP8) as a model for oxidative stress and Alzheimer's disease.

The senescence accelerated mouse (SAMP8) is a spontaneous animal model of overproduction of amyloid precursor protein (APP) and oxidative damage. It develops early memory disturbances and changes in the blood-brain barrier resulting in decreased efflux of amyloid-ß protein from the brain. It has a marked increase in oxidative stress in the brain. Pharmacological treatments that reduce oxidative stress improve memory. Treatments that reduce amyloid-ß (antisense to APP and antibodies to amyloid-ß) not only improve memory but reduce oxidative stress. Early changes in lipid peroxidative damage favor mitochondrial dysfunction as being a trigger for amyloid-ß overproduction in this genetically susceptible mouse strain. This sets in motion a cycle where the increased amyloid-beta further damages mitochondria. We suggest that this should be termed the Inflammatory-Amyloid Cycle and may well be similar to the mechanisms responsible for the pathophysiology of Alzheimer's disease. This article is part of a Special Issue entitled: Antioxidants and Antioxidant Treatment in Disease.

Mechanism-based Classification and Physical Therapy Management of Persons with Cancer Pain: A Prospective Case Series.

CONTEXT: Mechanism-based classification (MBC) was established with current evidence and physical therapy (PT) management methods for both cancer and for noncancer pain. AIMS: This study aims to describe the efficacy of MBC-based PT in persons with primary complaints of cancer pain. SETTINGS AND DESIGN: A prospective case series of patients who attended the physiotherapy department of a multispecialty university-affiliated teaching hospital. MATERIAL AND METHODS: A total of 24 adults (18 female, 6 male) aged 47.5 ± 10.6 years, with primary diagnosis of heterogeneous group of cancer, chief complaints of chronic disabling pain were included in the study on their consent for participation The patients were evaluated and classified on the basis of five predominant mechanisms for pain. Physical therapy interventions were recommended based on mechanisms identified and home program was prescribed with a patient log to ensure compliance. Treatments were given in five consecutive weekly sessions for five weeks each of 30 min duration. STATISTICAL ANALYSIS USED: Pre-post comparisons for pain severity (PS) and pain interference (PI) subscales of Brief pain inventory-Cancer pain (BPI-CP) and, European organization for research and treatment in cancer-quality of life questionnaire (EORTC-QLQ-C30) were done using Wilcoxon signed-rank test at 95% confidence interval using SPSS for Windows version 16.0 (SPSS Inc, Chicago, IL). RESULTS: There were statistically significant (P < 0.05) reduction in pain severity, pain interference and total BPI-CP scores, and the EORTC-QLQ-C30. CONCLUSION: MBC-PT was effective for improving BPI-CP and EORTC-QLQ-C30 scores in people with cancer pain.

Patient stories: Integrated learning for family physicians and primary health care teams.

A family physician's open-ended commitment to the patient, not limited by the type of health problem or by a defined endpoint opens the door to the patients' world. Family physicians are uniquely privileged to provide all the key aspects of primary care-first contact care, comprehensive care, coordination and personalisation of care. The family physician as the trained primary care clinician is the interface between the illness experience of patients in primary care and the healthcare system in which patients undergo treatment. Based on our experience of working with communities, we submit that commitment to the person of the patient needs long-term relationship with communities. The breadth of knowledge and patient-doctor relationship in the compendium of a family physician skill set is a challenging and rewarding experience. This learned skill is attainable for all healthcare professionals.

A Survey on Factors Affecting Knowledge and Satisfaction with Care Among Persons with Diabetes Mellitus in an Urban Health Centre and its Outreach Clinics in South India.

Objective: To determine the level of knowledge and factors affecting knowledge and satisfaction with diabetes care among persons with diabetes at urban health centre (UHC) and community health worker (CHW)-led outreach clinics (ORC) in South India. Methodology: A cross-sectional study was carried out using a structured questionnaire. One hundred patients at the UHC and 200 patients at the ORC were included. Results: Patients with DM of more than eight years, with co-morbidities and maintained on insulin had good knowledge at the UHC. At the ORC, participants who received education beyond the primary level and belonging to non - Hindu religion had higher knowledge. Patients at the ORC experienced better satisfaction in terms of waiting time for appointments, consultation, registration system and counselling. At the UHC, those who received primary education or those with lower educational attainment had better satisfaction. Overall, knowledge (p = 0.03) and satisfaction (p = 0.00001) of diabetes care was better at the ORC than at the UHC. Conclusions: Our study found better knowledge and satisfaction with diabetes care at the ORC than at the UHC. Whether or not the difference can be attributed to CHW-based clinics in the community needs to be further elucidated.

Comparison of Protocol-Based Continuous and Intermittent Tube Feeding in Mechanically Ventilated Critically Ill Children - An Open Label Randomized Controlled Trial.

OBJECTIVES: To compare the time taken to reach the target calories and proteins by protocol based "continuous tube feeding (CTF)" and "intermittent tube feeding (ITF)" in critically ill children. METHODS: This trial was conducted in the Pediatric Intensive Care Unit (PICU) of a tertiary care institute. Eligible children were randomized to receive CTF or ITF. Target calories were defined as 70% of calorie amount as per the WHO formula and target protein was defined as 1.5 g/kg as per the American Society of Parenteral and Enteral Nutrition (ASPEN) criteria. The primary outcome was time taken to reach target calories, the secondary outcomes were time taken to reach target protein, incidence of feed intolerance, PICU mortality, duration of ventilation, and outcome on 28th day. RESULTS: Fifty-eight children were randomized; 29 in each group. The baseline characters were comparable. The median (IQR) times for reaching target calories were 1.7 (1.4, 2.5) d and 1.8 (1.4, 4.4) d in the CTF and ITF groups, respectively [Hazards ratio (HR) 0.89 (95% CI 0.5, 1.5); p = 0.69]. For the target protein intake, the median times were comparable in the 2 groups [HR 0.82 (95% CI 0.4-1.5); p = 0.55]. The other outcomes were not significantly different between the groups. CONCLUSIONS: The authors did not observe any difference in the time taken to reach target calories and protein between the two different modes of delivery of enteral nutrition.

Removing Barriers to Emergency Medicine Point-of-Care Ultrasound: Illustrated by a Roadmap for Emergency Medicine Point-of-Care Ultrasound Expansion in India.

Point-of-care ultrasound (PoCUS) has a potentially vital role to play in emergency medicine (EM), whether it be in high-, medium-, or low-resourced settings. However, numerous barriers are present which impede EM PoCUS implementation nationally and globally: (i) lack of a national practice guideline or scope of practice for EM PoCUS, (ii) resistance from non-PoCUS users of ultrasound imaging (USI) and lack of awareness from those who undertake parallel or post-EM patient care, and (iii) heterogeneous pattern of resources available in different institutes and settings. When combined with the Indian Preconception and Prenatal Diagnostic Techniques (PCPNDT) Act, this has led to the majority of India's 1.4 billion citizens being unable to access EM PoCUS. In order to address these barriers (globally as well as with specific application to India), this article outlines the three core principles of EM PoCUS: (i) the remit of the EM PoCUS USI must be well defined a priori, (ii) the standard of EM PoCUS USI must be the same as that of non-PoCUS users of USI, and (iii) the imaging performed should align with subsequent clinical decision-making and resource availability. These principles are contextualized using an integrated PoCUS framework approach which is designed to provide a robust foundation for consolidation and expansion across different PoCUS specialisms and health-care settings. Thus, a range of mechanisms (from optimization of clinical practice through to PoCUS educational reform) are presented to address such barriers. For India, these are combined with specific mechanisms to address the PCPNDT Act, to provide the basis for influencing national legislation and instigating an addendum to the Act. By mapping to the recent Lancet Commission publication on transforming access to diagnostics, this provides a global and cross-discipline perspective for the recommendations.

The Association between Emergency Department Length of Stay and In-Hospital Mortality in Older Patients Using Machine Learning: An Observational Cohort Study.

The association between emergency department (ED) length of stay (EDLOS) with in-hospital mortality (IHM) in older patients remains unclear. This retrospective study aims to delineate the relationship between EDLOS and IHM in elderly patients. From the ED patients (n = 383,586) who visited an urban academic tertiary care medical center from January 2010 to December 2016, 78,478 older patients (age ≥60 years) were identified and stratified into three age subgroups: 60-74 (early elderly), 75-89 (late elderly), and ≥90 years (longevous elderly). We applied multiple machine learning approaches to identify the risk correlation trends between EDLOS and IHM, as well as boarding time (BT) and IHM. The incidence of IHM increased with age: 60-74 (2.7%), 75-89 (4.5%), and ≥90 years (6.3%). The best area under the receiver operating characteristic curve was obtained by Light Gradient Boosting Machine model for age groups 60-74, 75-89, and ≥90 years, which were 0.892 (95% CI, 0.870-0.916), 0.886 (95% CI, 0.861-0.911), and 0.838 (95% CI, 0.782-0.887), respectively. Our study showed that EDLOS and BT were statistically correlated with IHM (p < 0.001), and a significantly higher risk of IHM was found in low EDLOS and high BT. The flagged rate of quality assurance issues was higher in lower EDLOS ≤1 h (9.96%) vs. higher EDLOS 7 h

A multidisciplinary approach to heart failure care in the hospital: improving the patient journey.

BACKGROUND: Despite advancements in care for patients with heart failure (HF), morbidity and mortality remain high. Hospitalizations and readmissions for HF have been the focus of significant attention among health care providers and payers, with an eye toward reducing health care costs. However, considerable variability exists with regard to inpatient workflows and management for patients with HF, which represents a significant opportunity to improve care. OBJECTIVE: Here we provide a summary of optimal inpatient management strategies for HF, focusing on the multidisciplinary team of emergency medicine providers, admitting hospitalists, cardiovascular consultants, pharmacists, nurses, and social workers. METHODS: The patient journey serves as the template for this review article, from the initial presentation in the emergency department, to decongestion and stabilization, optimization of guideline-directed medical therapy, and discharge and appropriate disposition. CONCLUSION: This review aims not to be proscriptive but rather to provide best practices that are clinically relevant and actionable, with the goal of improving care for patients during the sentinel hospitalization for HF.

COVID-19 Vaccine Hesitancy among Arab Americans.

(1) Background: Coronavirus disease-2019 (COVID-19) vaccines have a significant impact on reducing morbidity and mortality from infection. However, vaccine hesitancy remains an obstacle in combating the pandemic. The Arab American (AA) population is understudied; thus, we aimed to explore COVID-19 attitudes within this community. (2) Methods: This was a cross-sectional study. An anonymous online survey was distributed to members of different AA associations and to the community through the snowball method. (3) Results: A total of 1746 participants completed the survey. A total of 92% of respondents reported having received at least one dose of a COVID-19 vaccine. A total of 73% reported willingness to receive a booster, and 72% plan to give their children the vaccine. On multivariate analysis, respondents were more likely to be vaccine-hesitant if they were hesitant about receiving any vaccine in general. They were less likely to be vaccine-hesitant if they were immigrants, over the age of 40, up to date on their general vaccination and if they believed that COVID-19 vaccines are safe and effective in preventing an infection. The belief that all vaccines are effective at preventing diseases was also associated with lower hesitancy. (4) Conclusions: This sample of AAs have higher vaccination rates and are more willing to vaccinate their children against COVID-19 when compared to the rest of the population. However, a reemergence of hesitancy might be arising towards the boosters.

The Emergency Medicine Education and Research by Global Experts (EMERGE) Network: Challenges and Lessons Learned.

INTRODUCTION: The Emergency Medicine Education and Research by Global Experts (EMERGE) network was formed to generate and translate evidence to improve global emergency care. We share the challenges faced and lessons learned in establishing a global research network. METHODS: We describe the challenges encountered when EMERGE proposed the development of a global emergency department (ED) visit registry. The proposed registry was to be a six-month, retrospective, deidentified, minimal dataset of routinely collected variables, such as patient demographics, diagnosis, and disposition. RESULTS: Obtaining reliable, accurate, and pertinent data from participating EDs is challenging in a global context. Barriers experienced ranged from variable taxonomies, need for language translation, varying site processes for curation and transfer of deidentified data, navigating institution- and country-specific data protection regulations, and substantial variation in each participating institution's research infrastructure including training in research-related activities. We have overcome many of these challenges by creating detailed data-sharing agreements with bilateral regulatory oversight agreements between EMERGE and participating EDs, developing relationships with and training health informaticians at each site to ensure secure transfer of deidentified data, and formalizing an electronic transfer process ensuring data privacy. CONCLUSION: We believe that networks like EMERGE are integral to providing the necessary platforms for education, training, and research collaborations for emergency care. We identified substantial challenges in data sharing and variation in local sites' research infrastructure and propose potential approaches to address these challenges.

Troponin is unrelated to outcomes in heart failure patients discharged from the emergency department.

Background: Prior data has demonstrated increased mortality in hospitalized patients with acute heart failure (AHF) and troponin elevation. No data has specifically examined the prognostic significance of troponin elevation in patients with AHF discharged after emergency department (ED) management. Objective: Evaluate the relationship between troponin elevation and outcomes in patients with AHF who are treated and released from the ED. Methods: This was a secondary analysis of the Get with the Guidelines to Reduce Disparities in AHF Patients Discharged from the ED (GUIDED-HF) trial, a randomized, controlled trial of ED patients with AHF who were discharged. Patients with elevated conventional troponin not due to acute coronary syndrome (ACS) were included. Our primary outcome was a composite endpoint: time to 30-day cardiovascular death and/or heart failure-related events. Results: Of the 491 subjects included in the GUIDED-HF trial, 418 had troponin measured during the ED evaluation and 66 (16%) had troponin values above the 99th percentile. Median age was 63 years (interquartile range, 54-70), 62% (n = 261) were male, 63% (n = 265) were Black, and 16% (n = 67) experienced our primary outcome. There were no differences in our primary outcome between those with and without troponin elevation (12/66, 18.1% vs 55/352, 15.6%; P = 0.60). This effect was maintained regardless of assignment to usual care or the intervention arm. In multivariable regression analysis, there was no association between our primary outcome and elevated troponin (hazard ratio, 1.00; 95% confidence interval,  0.49-2.01, P = 0.994). Conclusion: If confirmed in a larger cohort, these findings may facilitate safe ED discharge for a group of patients with AHF without ACS when an elevated troponin is the primary reason for admission.

Length-of-Stay in the Emergency Department and In-Hospital Mortality: A Systematic Review and Meta-Analysis.

The effect of emergency department (ED) length of stay (EDLOS) on in-hospital mortality (IHM) remains unclear. The aim of this systematic review and meta-analysis was to determine the association between EDLOS and IHM. We searched the PubMed, Medline, Embase, Web of Science, Cochrane Controlled Register of Trials, CINAHL, PsycInfo, and Scopus databases from their inception until 14−15 January 2022. We included studies reporting the association between EDLOS and IHM. A total of 11,337 references were identified, and 52 studies (total of 1,718,518 ED patients) were included in the systematic review and 33 in the meta-analysis. A statistically significant association between EDLOS and IHM was observed for EDLOS over 24 h in patients admitted to an intensive care unit (ICU) (OR = 1.396, 95% confidence interval [CI]: 1.147 to 1.701; p < 0.001, I2 = 0%) and for low EDLOS in non-ICU-admitted patients (OR = 0.583, 95% CI: 0.453 to 0.745; p < 0.001, I2 = 0%). No associations were detected for the other cut-offs. Our findings suggest that there is an association between IHM low EDLOS and EDLOS exceeding 24 h and IHM. Long stays in the ED should not be allowed and special attention should be given to patients admitted after a short stay in the ED.

Testosterone modulates gene expression pathways regulating nutrient accumulation, glucose metabolism and protein turnover in mouse skeletal muscle.

Testosterone regulates energy metabolism and skeletal muscle mass in males, but the molecular mechanisms are not fully understood. This study investigated the response of skeletal muscle to castration and testosterone replacement in 8-week-old male mice. Using microarray analyses of mRNA levels in gastrocnemius muscle, 91 genes were found to be negatively regulated by testosterone and 68 genes were positively regulated. The mRNA levels of the insulin signalling suppressor molecule Grb10 and the glycogen synthesis inhibitors, protein phosphatase inhibitor-1 and phosphorylase kinase-γ, were negatively regulated by testosterone. The insulin-sensitive glucose and amino acid transporters, Glut3 and SAT2, the lipodystrophy gene, Lpin1 and protein targeting to glycogen were positively regulated. These changes would be expected to increase nutrient availability and sensing within skeletal muscle, increase metabolic rate and carbohydrate utilization and promote glycogen accumulation. The observed positive regulation of atrogin-1 (Fbxo32) by testosterone could be explained by the phosphorylation of Akt and Foxo3a, as determined by Western blotting. Testosterone prevented the castration-induced increase in interleukin-1α, the decrease in interferon-γ and the atrophy of the levator ani muscle, which were all correlated with testosterone-regulated gene expression. These findings identify specific mechanisms by which testosterone may regulate skeletal muscle glucose and protein metabolism.