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Abstract Background A disturbance in eating behaviour (EB) is the hallmark of patients with eating disorders, and depicts a complex interaction of environmental, psychological and biological factors. In the present study, we propose a model of association of genetic susceptibility—represented by adiponectin (ADIPOQ) gene—with eating behavioural and psychological traits. Results Evaluation of the distribution of a polymorphism of the ADIPOQ (rs1501299 G > T) with respect to three EB factors involving cognitive restraint, uncontrolled eating and emotional eating revealed that T-allele in rs1501299 was associated with a decreased susceptibility to emotional EB in codominant (e.g., GG vs. TT) (beta-coefficient [β] = 2.39, 95% Confidence interval [CI] = − 4.02, − 0.76; p value [p] = 0.02), recessive (GG + GT vs. TT) (β = − 2.77, 95% CI = − 3.65, − 0.69; p = 0.005) and additive (GG = 0, GT = 1, TT = 2) (β = − 1.02, 95% CI = − 1.80, − 0.24; p = 0.01) models of inheritance. The presence of the T-allele was not significantly associated with psychological factors involving depression, anxiety and stress. Finally, none of the psychological traits significantly predicted any of the EB factors after controlling for age, body weight and gender. Conclusions Our data suggest that genetic variant in ADIPOQ locus may influence human emotional eating behaviour.

Abstract Background Adiponectin plays key roles in regulating appetite and food intake. Altered circulating adiponectin levels have been observed in human eating disorders such as anorexia nervosa, bulimia nervosa or binge eating. In addition, an association between circulating adiponectin levels and human eating behaviour (EB) has been reported. Interestingly, a disturbance in eating behaviour is the defining characteristic of human eating disorders. However, it is unknown whether adiponectin is causally implicated in human EB. We therefore aimed to investigate the causal effect of adiponectin on EB. Results Mendelian randomization (MR) analysis estimated the influence of blood adiponectin on EB by combining data on the association of adiponectin gene (ADIPOQ) variants with adiponectin levels and with three EB factors involving disinhibition, restraint and hunger. Using inverse-variance weighted (IVW) regression method and other complementary MR techniques (weighted median regression, MR Egger and weighted modal regression), the MR analysis revealed a broadly consistent evidence that higher blood adiponectin concentration was significantly associated with increased EB factor disinhibition (beta coefficient for IVW regression [β IVW], 3.05; 95% confidence interval [CI] 1.10, 5.00) but non-significantly associated with increased EB factor restraint (β IVW, 0.17; 95% CI − 1.85, 2.18), and increased EB factor hunger (β IVW, 1.63; 95% CI − 0.75, 4.01). Conclusions Overall, our findings indicate a causal role of adiponectin levels in eating disinhibition but not in eating restraint and hunger.

BACKGROUND:Obesity is a major risk factor for many chronic diseases, including reduced lung function. The role of polymorphisms of the adiponectin gene, though linked with cardiometabolic consequences of obesity, has not been studied in relation to lung function. OBJECTIVES:The aim of this study is to examine polymorphisms in the ADIPOQ, ADIPOR1, and ADIPOR2 genes in relation to adiponectin serum levels, BMI, and adiposity in 18-year old Cypriot males, as well as determine whether BMI, adipokines levels and polymorphisms in adipokine related genes are associated with lung function levels. RESULTS:From the participants, 8% were classified as obese, 22% as overweight, and the remaining 71% as normal. We found that rs266729 and rs1501299 in ADIPOQ and rs10920531 in ADIPOR1 were significantly associated with serum adiponectin levels, after adjusting for ever smoking. In addition, there was an overall significant increase in FEV1% predicted with increasing BMI (β = 0.53, 95% CI: 0.27, 0.78) and in FVC % predicted (β = 1.02, 95% CI: 0.73, 1.30). There was also a decrease in FEV1/FVC with increasing BMI (β = -0.53, 95% CI: -0.71, -0.35). Finally, rs1501299 was associated with lung function measures. DISCUSSION:Functional variants in the ADIPOQ gene were linked with lung function in young males. Further studies should concentrate on the role of adipokines on lung function which may direct novel therapeutic approaches.

Background: Alcohol, a widely abused drug, is a general CNS depressant that is involved in an impaired neurological functioning in a dose-dependent manner and purportedly, in the development of adverse cognitive functions in humans. Objective: To assess crosss-sectionally whether alcohol consumption is associated with the risk of subjective cognitive complaints (SCCs). Material and Methods: A cross-sectional study of 1299 participants with diverse age groups, ethnicity and socioeconomic levels recruited from six public hospitals in three different states in the southwest Nigeria between March 2016 and April 2016 was done. Prevalence of subjective cognitive complaints by the level of alcohol intake was measured using standardized questionnaire. Factor analyses (explorative and confirmatory) were used to validate the cognitive complaint questionnaire while conditional multiple logistic regression analysis was used to investigate the association between alcohol intake and SCCs. Results: After adjustment for age, marital status, level of education, ethnicity, smoking status and physical activity (basic adjustment), participants in the highest compared with the lowest quintile of alcohol intake had a significantly increased odds of SCCs (odds ratio [OR], 1.95; 95% confidence interval [CI], 1.39–2.74; P for trend

Background: The association of obesity with adiponectin gene has been reported in different populations with various inconsistencies. Data from Nigeria is very scanty on the association. Aim: We investigated possible associations of adiponectin gene (ADIPOQ) single nucleotide polymorphisms (SNPs) rs2241766 (+45T>G in exon 2), rs266729 (−11377C>G in promoter) and rs1501299 (+276G>T in intron 2) with body mass index (BMI), waist circumference (WC) and hip circumference (HC), in our cross-sectional study. Subjects and methods: SNPs in ADIPOQ were genotyped in 107 subjects (81 females, 26 males; mean age 22.2 years) by Sequenom MassARRAY. Notably, rs2241766 was removed for not reaching Hardy-Weinberg equilibrium. BMI was calculated (kg/m2) while WC and HC were measured using standard procedures Results: Linear regression showed that variant rs1501299 was not associated with BMI, WC or HC but rs266729 was associated with increased measures of obesity involving BMI (recessive model; beta coefficient [β], 12.85; 95% confidence interval [CI], 6.47, 19.24, codominant model; GG, β, 13.08; 95% CI, 6.71, 19.46, GC, β, 1.04; 95% CI, −0.60, 2.68 and log-additive model; β, 2.117; 95% CI, 0.55, 3.68), WC (recessive model; β, 22.17; 95% CI, 7.11, 37.23 and codominant model; GG, β, 21.857; 95% CI, 6.74, 36.98, GC, β, −1.459; 95% CI, −5.34, 2.43) and HC (recessive model; β, 33.56; 95% CI, 15.41, 51.70, codominant model; GG, β, 34.171; 95% CI, 16.04, 52.30, GC, β, 2.771; 95% CI, −1.79, 7.34 and log-additive model; β, 5.466; 95% CI, 1.14, 9.80). Conclusion: This study in young Nigerian adults confirmed previously reported association of SNP −11377C>G with obesity measures in other populations. Keywords: Obesity, rs2241766, rs1501299, rs266729, Nigeria

Abstract Hypertensive disorders of pregnancy pose significant risks to both maternal and fetal health. Postpartum hypertension, a common complication, often leads to emergency room (ER) visits or hospital readmissions. Despite the prevalence of these complications, there is a paucity of studies that focus on blood pressure monitoring in postpartum patients with de novo hypertensive disorders of pregnancy. This review aimed to address the gap by evaluating available evidence to compare telehealth monitoring with in‐person visits in preventing ER visits and hospital readmissions among postpartum patients with de novo hypertensive disorders of pregnancy. The study identified relevant studies by conducting a rigorous search strategy (Medline/OVID, the Cochrane Library, Scopus, and research registries such as the International Clinical Trials Registry Platform [ICTRP] and clinical trials) directed by the clinical information specialist. Two reviewers independently screened titles and abstracts, resolving discrepancies with the assistance of a third reviewer. Data extraction followed standardized protocols, and risk of bias assessments were conducted using appropriate tools. This rapid review synthesized evidence from 11 studies on telehealth for women with recent de novo hypertensive disorders of pregnancy. Findings highlighted that telemonitoring led to earlier blood pressure documentation and intervention, reduced disparities in blood pressure measurement, decreased hypertension‐related readmissions, higher rates of postpartum antihypertensive treatment initiation, and increased patient satisfaction. Telehealth emerges as a promising tool for managing postpartum hypertension among women with recent de novo hypertensive disorders of pregnancy

Urbanization negatively affects biodiversity worldwide, with the rapidly urbanizing Afrotropical area being understudied. Furthermore, most previous studies investigating this topic focused on taxonomic diversity while recent findings have highlighted the need to incorporate complementary diversity metrics. Thus, this study investigated how urbanization affects bird taxonomic, functional, and phylogenetic diversity in Nigeria, a country with one of the fastest rates of urbanization in the world. We conducted bird censuses at 400 points organized across eight paired comparisons (urban vs non-urban habitats), vegetation zones (rainforest vs savannah), and seasons (dry vs wet). Of the total 237 bird species recorded, 65 % were never encountered in urban areas, suggesting the negative effect of urbanization that was also supported by our statistical analyses. Taxonomic diversity was significantly higher in non-urban than urban habitats. This contrasted with the result on functional and phylogenetic diversity, which was higher in the urban than non-urban habitat. These relationships were similar across seasons, but more intense in the rainforest, revealing that birds in this vegetation zone are more vulnerable to urbanization than their savannah counterparts. We also found that water cover significantly promoted all avian diversity metrics analyzed during the dry season independently of urbanization. In contrast, canopy and bush cover mediated the effects of urbanization on some diversity components (i.e., functional and phylogenetic diversity). Our results highlight the significance of incorporating spatiotemporal patterns in related studies and provide much needed information for city planners and other urban stakeholders in the Afrotropics.

Background In acute heart failure (HF), reduced cardiac output, vasoconstriction and congestion may damage the intestinal mucosa and disrupt its barrier function. This could facilitate the leakage of bacterial products into circulation and contribute to inflammation and adverse cardiac remodelling. We aimed to investigate gut leakage markers and their associations with inflammation, infarct size and cardiac function.Methods We examined 61 ST-elevation myocardial infarction (STEMI) patients who developed acute HF within 48 hours of successful percutaneous coronary intervention (PCI). Serial blood samples were taken to measure lipopolysaccharide (LPS), LPS-binding protein (LBP), soluble cluster of differentiation 14 (sCD14) and intestinal fatty acid binding protein (I-FABP). Cumulative areas under the curve (AUCs) from baseline to day 5 were calculated. Serial echocardiography was performed to assess left ventricular ejection fraction (LVEF), global longitudinal strain (GLS) and wall motion score index (WMSI). Single-photon emission CT (SPECT) was performed at 6 weeks to determine infarct size and LVEF.Results I-FABPAUC correlated positively with infarct size (rs=0.45, p=0.002), GLS (rs=0.32, p=0.035) and WMSI (rs=0.45, p=0.002) and negatively with LVEF measured by SPECT (rs=−0.40, p=0.007) and echocardiography (rs=−0.33, p=0.021) at 6 weeks. LPSAUC, LBPAUC and sCD14AUC did not correlate to any cardiac function marker or infarct size. Patients, who at 6 weeks had above median GLS and WMSI, and below-median LVEF measured by SPECT, were more likely to have above median I-FABPAUC during admission (adjusted OR (aOR) 5.22, 95% CI 1.21 to 22.44; aOR 5.05, 95% CI 1.25 to 20.43; aOR 5.67, 95% CI 1.42 to 22.59, respectively). The same was observed for patients in the lowest quartile of LVEF measured by echocardiography (aOR 9.99, 95% CI 1.79 to 55.83) and three upper quartiles of infarct size (aOR 20.34, 95% CI 1.56 to 264.65).Conclusions In primary PCI-treated STEMI patients with acute HF, I-FABP, a marker of intestinal epithelial damage, was associated with larger infarct size and worse cardiac function after 6 weeks.

Cholera, an acute diarrheal infection from ingesting contaminated food or water, remains a significant public health threat in Nigeria, especially in areas lacking safe water and sanitation. Characterized by severe watery diarrhea, cholera can cause dehydration and death if untreated. Historical data shows cholera's endemic nature in Nigeria, with notable outbreaks since 1970, including major ones in 1991, 1999, 2010, 2018, and 2024. According to a descriptive study in Nigeria, the 1991 outbreak reported 59,478 cases and 7,654 deaths, with a Case Fatality Ratio (CFR) of 12.9%. In 2010, there were 41,787 cases and 1,716 deaths, with a CFR of 4.1% across 18 states, mainly affecting impoverished communities and children. The 2018 outbreak had 43,996 cases and 836 deaths, with a CFR of 2% in 20 states, a 240% increase from 2017. By mid-2024, there were 1,579 suspected cases and 54 deaths (CFR 3.4%) in 32 states. This paper evaluates cholera trends in Nigeria and proposes effective preventive and treatment strategies. Policy recommendations highlight the need for improved WASH infrastructure, enhanced surveillance, and rapid response mechanisms. Innovative approaches like case-area targeted interventions (CATI) and increased public health education are crucial for mitigating future outbreaks and achieving the goal of reducing cholera deaths by 90% by 2030.

Human capital is critical in directing all resources to serve people and influencing the productivity of an economy. Human capital can be increased through good health and education. This research examined the effects of human capital development on economic growth and longevity in West Africa. This study was concentrated on four West African countries: Nigeria, Ghana, Burkina Faso, and the Benin Republic. We used panel ordinary least squares (POLS), fully modified ordinary least squares (FM-OLS), and dynamic ordinary least squares (DOLS) for robust analysis to look at how human capital development affects economic growth and longevity over the long term. Life expectancy at birth was employed to evaluate longevity. Before the estimate, correlation, unit root, and cointegration tests were run. According to the findings of this study, human capital development has a 347.5% favorable and significant long-term effect on economic growth. This indicates that enhancing human capital can stimulate economic growth. According to the data, human capital development has a 26.8 percent positive and significant long-term effect on life expectancy at birth. Based on the findings, this study concluded that human capital development has a favorable impact on economic growth and life expectancy at birth in West Africa, demonstrating that developing human capital is advantageous to both growth and life expectancy. As a result, West African governments must increase health and education budgetary expenditures to strengthen human capital.

This study investigates the effectiveness of monetary policy in the pre and post COVID-19 periods in West Africa. The panel fully modified ordinary least squares (FMOLS) was used. Before the estimation, the correlation analysis and summary statistics were done. Unit root test was carried out to ascertain whether the data series are stationary or not and the panel cointegration test was used to determine the existence of long run relationship among the variables. The findings indicate that monetary policy has 12.3% negative and significant effects on economic growth in the periods before COVID-19, while it has insignificant effect after the pandemic. Furthermore, monetary policy has 21.01% negative and significance effects on inflation in the pre COVID-19 era, while it has 52.5% negative and significant effect on inflation after the pandemic. This indicates that the effectiveness of the central bank’s efforts to affect and control inflation has declined after COVID-19. Causes for this could include the pandemic’s effect on supply chains, demand, and the weaker economic environment. On this basis, the monetary authority should create an economic environment that will play a crucial role in determining the effectiveness of monetary policy in the post-COVID-19 periods to foster economic recovery.

Abstract Background Interactions between the gut microbiota, diet, and host metabolism contribute to the development of cardiovascular disease, but a firm link between disease-specific gut microbiota alterations and circulating metabolites is lacking. Methods We performed shot-gun sequencing on 235 samples from 166 HF patients and 69 healthy control samples. Separate plasma samples from healthy controls (n = 53) were used for the comparison of imidazole propionate (ImP) levels. Taxonomy and functional pathways for shotgun sequencing data was assigned using MetaPhlAn3 and HUMAnN3 pipelines. Results Here, we show that heart failure (HF) is associated with a specific compositional and functional shift of the gut microbiota that is linked to circulating levels of the microbial histidine-derived metabolite ImP. Circulating ImP levels are elevated in chronic HF patients compared to controls and associated with HF-related gut microbiota alterations. Contrary to the microbiota composition, ImP levels provide insight into etiology and severity of HF and also associate with markers of intestinal permeability and systemic inflammation. Conclusions Our findings establish a connection between changes in the gut microbiota, the presence, etiology, and severity of HF, and the gut-microbially produced metabolite ImP. While ImP appears promising as a circulating biomarker reflecting gut dysbiosis related to HF, further studies are essential to demonstrate its causal or contributing role in HF pathogenesis. Trial registration NCT02637167, registered December 22, 2015.

The goal of empowerment programs is to promote initiatives aimed at uplifting society's impoverished and disenfranchised citizens, who are typically women and youth. This paper, therefore, examined the socioeconomic features influencing rural women accessibility to empowerment programs in Kogi state, Nigeria. The research is specifically looking at socioeconomic characteristics of respondents, ascertaining the level of effectiveness of empowerment programs on agricultural activities, describe the level of accessibility to empowerment programs and identifying the constraints of empowerment programs. Random and snow ball sampling methods have been combined to gather information from 125 respondents. Descriptive statistics and multiple linear regression were used to analyze data. Average farm size was 2.82 ha, with annual income of 466,000 NGN. Empowerment programs such as Kogi APPEAL and Farmer moni were mostly accessible among women farmers. Marital status, household size, education were significant factors in accessing empowerment programs among women in Kogi state. Therefore, it is recommended that policies and programs that address women farmers' access to empowerment programs assets should be more inclusive.

Internationally, the proliferation of digital technologies in classrooms has produced digital distractions among digital natives in this 21st century. Thus, it is highly imperative to develop a suitable instrument for assessing and measuring digital distraction among higher education students to enable continuing research and practice. While previous studies had treated and measured digital distraction as a sub-component of a multi-dimensional construct and as a test, the present study through instrumentation survey research, developed and authenticated a standalone digital distraction scale among pre-service science, technology and mathematics (STM) teachers in Nigeria. The instrument is constructed by adopting a multidimensional standpoint of digital distraction around a higher-order modelling method. The pre-service STM teachers were recruited from a culturally varied university student population in Nigeria. The results showed a high level of digital distraction among the pre-service STM teachers in Nigeria and the digital distraction is composed of several connected yet distinctive factors (emotional distraction, digital addiction, and distraction by procrastination), with proof backing up a higher-order structural archetypal. More so, empirical evidence confirmed the measurement invariance of the scale with regards to gender and the consistency of the psychometric properties of the digital distraction scale. Finally, test-retest reliability of the digital distraction scale showed that the scores are not variable over time and that the scale is not sensitive to alterations in the learning milieu. Finally, it is hoped that this tool will be handy for educators interested in isolating pre-service STM teachers at risk of high digital distraction which may cause lack of respect and privation of courtesy for instructors and personal distraction in the classroom.

Stress plays an important role in drug- and addiction-related behaviours. However, the mechanisms underlying these behavioural responses are still poorly understood. In the light of recent reports that show consistent regulation of many genes encoding stress proteins including heat shock proteins following ethanol exposure in Drosophila , it was hypothesised that transition to alcohol dependence may involve the dysregulation of the circuits that mediate behavioural responses to stressors. Thus, behavioural genetic methodologies were used to investigate the role of the Drosophila hsp26 gene, a small heat shock protein coding gene which is induced in response to various stresses, in the development of rapid tolerance to ethanol sedation. Rapid tolerance was quantified as the percentage difference in the mean sedation times between the second and first ethanol exposure. Two independently isolated P-element mutations near the hsp26 gene eliminated the capacity for tolerance. In addition, RNAi-mediated functional knockdown of hsp26 expression in the glial cells and the whole nervous system also caused a defect in tolerance development. The rapid tolerance phenotype of the hsp26 mutants was rescued by the expression of the wild-type hsp26 gene in the nervous system. None of these manipulations of the hsp26 gene caused changes in the rate of ethanol absorption. Hsp26 genes are evolutionary conserved, thus the role of hsp26 in ethanol tolerance may present a new direction for research into alcohol dependency.

For Nigeria to attain her Vision 20: 2020, the school curricula must change in line with the development in technology. Teachers should be able to adapt technology into the teaching and learning process. Three non-intellectual elements that affect the degree of integration of technology into teaching and learning are attitude toward computer, computer anxiety and computer self-efficacy. The study investigated attitudes towards computer, computer anxiety and gender as determinants of computer self-efficacy among 2100 pre-service science, technology and mathematics (STM) teachers from the University of Lagos of Nigeria using the quantitative research method within the blueprint of the descriptive survey design. Data collected were analysed using the descriptive statistics of percentages, mean, and standard deviation and inferential statistics of independent samples t-test, Pearson product-moment correlation coefficient and multiple regression analysis. Finding revealed significant correlations between computer attitudes, computer anxiety and computer self-efficacy. Gender differences in attitude toward computer, computer self-efficacy and computer anxiety among pre-service STM teachers were significant. Affective component; perceived control component; perceived usefulness component; behavioural intention component; gender; and computer anxiety made statistically significant contributions to the variance in pre-service STM teachers' computer self-efficacy. The study recommended among others that academic institutions should pay more attention to this computer anxiety and adopt proper ways of reducing the computer anxiety. This will enable positive e-learning experiences to be created for pre-service STM teachers.

The persistence of per- and polyfluoroalkyl substances (PFAS) in the environment and their possible negative health impacts have attracted global attention. In Nigeria, there have been instances of PFAS contamination in many environmental areas, such as water sources. This paper raised concerns regarding limited research of PFAS in Nigeria, potential human exposure, and environmental consequences in Nigeria. This paper examines the present status of PFAS research in Nigeria, the sources from which contamination occurs, the environmental effects, and the implications for human health. This underscores the holes in understanding and areas of focus for study, underscoring the necessity for thorough evaluations of potential risks and regulatory actions to reduce exposure to PFAS and protect public health and the environment in Nigeria.

Abstract Citizen science projects are expanding globally, with the African continent, particularly Nigeria, registering significant growth. Here, we document and analyse novel operations of the Nigerian Bird Atlas Project (NIBAP), 2015–2022. This project has employed the use of ornithologists, mainly trained at the A. P. Leventis Ornithological Research Institute (APLORI) located in Jos, Nigeria, and its 28 bird clubs established across Nigeria to enlist 827 bird enthusiasts that contribute regular and near real‐time data about bird distribution and relative abundance in the country. Interestingly, NiBAP has recorded about 75% of the bird species known from Nigeria in only about 50% of Nigeria's total surface area, including 39 nationally threatened species. The Common Bulbul Pycnonotus barbatus, Laughing Dove Spilopelia senegalensis, and Grey‐backed Camaroptera Camaroptera brevicaudata were the most commonly recorded species, while Amurum Forest Reserve, Rennajj Fish Farm, and Obudu Cattle Ranch were the most surveyed sites during the period. Thus, our approach reveals how to increase involvement of nature enthusiasts, ornithologists, and a regional research institute to build local capacity and contribute rich information necessary to alleviate the lack of distributional data about Afrotropical avifauna. We strongly recommend our approach to boost other citizen science projects across Africa and beyond to address the huge lack of biodiversity data, create public awareness, and foster conservation education.

BackgroundPreeclampsia (PE) is a hypertensive disorder of pregnancy, affecting 2%–8% of pregnancies worldwide, and is the leading cause of adverse maternal and fetal outcomes. The disease is characterized by oxidative and cellular stress and widespread endothelial dysfunction. While the precise mechanisms are not entirely understood, the pathogenesis of PE is closely linked to placental dysfunction and, to some extent, syncytiotrophoblast extracellular vesicle release (STB-EVs). These vesicles can be divided into the less well-studied medium/large EVs (220–1,000 nm) released in response to stress and small EVs (

Per- and polyfluoroalkyl substance (PFAS) contamination has emerged as a significant environmental concern, necessitating the development of effective degradation technologies. Among these technologies, ultrasonication has gained increasing attention. However, there is still limited knowledge of its scale-up or on-site applications due to the complexity of real-world conditions and its high energy consumption. Herein, we provide an overview of recent advancements in the ultrasonic degradation of PFAS toward hybrid technologies. This review contains information regarding the physical and chemical properties of PFAS, followed by an exploration of degradation challenges, the mechanisms of ultrasonication, and recent experimental findings in this field. The key factor affecting ultrasonication is cavitation intensity, which depends on ultrasonic frequency, power density, and PFAS structure. Its main advantages include the generation of reactive species without chemicals and the compatibility with other degradation technologies, while its main disadvantages are high energy consumption and limited applications to liquid-based media. We also highlight the integration of ultrasonication with other advanced oxidation processes (AOPs) to create hybrid systems for enhanced degradation of PFAS in order to significantly improve PFAS degradation efficiency, with enhancement factors ranging between 2 and 12. Finally, we discuss prospects for scaling up the ultrasonic degradation of PFAS and address the associated limitations. This review aims to deepen the understanding of ultrasonication technology in addressing PFAS contamination and to guide future research and development efforts.

Three new tridentate copper(II) N-heterocyclic carbene (NHC) complexes have been obtained and characterized with symmetrical C-4 substitutions on their pendent pyridine rings. Substitutions including methyl (Me), methoxy (OMe), and chloro (Cl) groups, which extend the library pincer Cu-NHC complexes under investigation, modify the impact of pyridinyl basicity on NCN pincer complexes. Both ligand precursors and copper(II) complexes are characterized using a range of techniques, including nuclear magnetic resonance (NMR) spectroscopy for 1H, 13C, 31P, and 19F nuclei, electrospray ionization mass spectrometry (ESI-MS), X-ray crystallography, cyclic voltammetry, and UV-Vis spectroscopy. The pyridine substitutions lead to minimal changes to bond lengths and angles in the X-ray crystal structures of these related complexes; there is a pronounced impact on the electrochemical behavior of both the ligand precursors and copper complexes in the solution. The substitution in the pyridinyl units of these complexes show an impact on the catalytic reactivity of these complexes as applied to a model C–N bond-forming reaction (CEL cross-coupling) under well-established conditions; however, this observation does not correlate to the expected change in basicity in these ligands.

Key Clinical Message In patients with infectious symptoms and severe muscle pain, it is crucial to consider pyomyositis as a significant potential cause. A normal complete blood count should not exclude this possibility early in the course. Early advanced imaging modalities and blood cultures are crucial in narrowing the differential. Methicillin resistant Staphylococcus aureus is increasingly implicated.