Mediterranean and standard American diet consumption in psychosis and non-psychosis affective disorders groups: Symptoms and cognition

Research supports an association between diet and health, and emerging evidence suggests that diet is associated with neuropsychiatric symptoms. However, no human study has examined an anti-inflammatory diet across rigorously defined psychiatric diagnoses and its associations with symptom severity and cognition. As inflammation is implicated in mental illness, we investigated adherence to the Mediterranean diet (MD), an anti-inflammatory diet, and the standard American diet (SAD), and examined cross-sectional relationships with psychiatric symptoms and cognition.

METHOD

Participants included 54 individuals with psychotic disorders, 30 with non-psychosis affective disorders and 40 healthy controls. Participants underwent diagnostic interviews, PANSS symptom ratings, and MATRICS cognitive assessments. The self-report GBAQ was used to assess adherence to the MD versus SAD.

RESULTS

The psychosis group was significantly more likely to consume the SAD than healthy controls (p = 0.007), with MD adherence predicting better working memory (r = 0.461, p < 0.001). In the non-psychosis affective disorders group, MD adherence predicted slower processing speed (r = -0.376, p = 0.049). In the non-psychosis affective disorders group, MD predicted reduced PANSS General Psychopathology scale (r = -0.449, p = 0.013), as well as the Activation (r = -0.362, p = 0.049), and Dysphoric Mood factors (r = -0.403, p = 0.027).

DISCUSSION

This first-of-its kind study identified poor dietary choices in persons with psychosis, showing significantly lower symptoms and better cognition in association with the MD in transdiagnostic analyses. It supports the study of dietary interventions for prevention and treatment of psychiatric conditions.

Can we identify stroke sub-type without imaging? A multidimensional analysis

Stroke is a major cause of mortality and disability worldwide, with ischemic stroke (AIS) and intracerebral haemorrhage (ICH) requiring distinct management approaches. Accurate early detection and differentiation of these subtypes is crucial for targeted treatment and improved patient outcomes. Traditionally, imaging techniques such as computed tomography (CT) and magnetic resonance imaging (MRI) are required to distinguish between AIS and ICH. However, this study explores a non-imaging approach to differentiate between stroke subtypes. Using a retrospective dataset of 80 mild-to-moderate patients suffering stroke (68 AIS and 12 ICH), we employed principal component analysis (PCA) combined with logistic regression (LR) to evaluate 67 parameters. These parameters include baroreceptor sensitivity, and cerebral and peripheral hemodynamic variables. The PCA-LR model, validated through two-fold and six-fold cross-validation methods, effectively differentiated between AIS and ICH. BRS parameters and cerebral hemodynamic factors contributed significantly to the model's accuracy. The two-fold cross-validation approach achieved an area under the curve (AUC) of ≥0.92, while the six-fold method maintained a consistent variance explanation (AUC ≥0.79). Results suggest that this multidimensional approach may facilitate early stroke subtype identification (AIS vs ICH) without reliance on imaging, offering a promising tool for ultra-acute stroke care in prehospital settings. However, it is important to note that the model has been tested in confirmed stroke cases, and its ability to distinguish between stroke and stroke mimics remains an important limitation for broader clinical application. Future research with larger datasets is warranted to refine the model and validate its clinical applicability.

Computational modelling for risk assessment of neurological disorder in diabetes using Hodgkin-Huxley model

BACKGROUND

Diabetes mellitus, characterized by chronic glucose dysregulation, significantly increases the risk of neurological disorders such as cognitive decline, seizures, and Alzheimer's disease. As neurons depend on glucose for energy, fluctuations in glucose levels can disrupt sodium (Na⁺) and potassium (K⁺) ion channel dynamics, leading to altered membrane potential. Modeling these ionic changes enables the simulation of neuronal responses under glycemic extremes, providing valuable insights for risk assessment and personalized treatment.

METHOD

The methodology utilizes Support Vector Machines (SVM) and Convolutional Neural Networks (CNN) to classify hyperglycemic and hypoglycemic events based on variations in blood glucose levels. A glucose-sensing neuron model is developed using the Hodgkin-Huxley (HH) framework to examine how glycemic fluctuations influence Na⁺ and K⁺ channel conductance. The study uniquely alters maximal conductance values to precisely simulate the effects of hyper- and hypoglycemia on ion channel behaviour and neuronal excitability.

RESULTS

The blood glucose classification results indicate that the CNN classifier effectively detects hyperglycemia and hypoglycemia, achieving an accuracy of 90.23 %, sensitivity of 87.45 %, specificity of 88.56 %, and precision of 89.31 %. Computational modeling shows that hyperglycemia decreases Na⁺ currents and increases K⁺ conductance, reducing neuronal excitability. In contrast, hypoglycemia increases Na⁺ activity and decreases K⁺ conductance, leading to excessive neuronal firing and rapid action potentials.

CONCLUSION

The proposed glucose-sensing neuron model captures how glycemic variations affect Na⁺ and K⁺ conductance and neuronal excitability. Integrating machine learning with HH modeling enables risk assessment of hypoglycemia-induced neuronal hyperexcitability and seizures, as well as hyperglycemia-associated insulin resistance and long-term risk of cognitive decline and Alzheimer's disease.

Association between frailty and the progression trajectories of stroke and dementia comorbidity: insights from observational and genetic analyses

BACKGROUND

The relationship between frailty and the progression trajectories of stroke-dementia comorbidity remains inconclusive. This study aimed to determine whether there are associations between frailty and the progression trajectories of stroke-dementia comorbidity, including the transitions from enrollment to incident stroke/dementia, progression to stroke-dementia comorbidity, and ultimately to mortality.

METHODS

This prospective study was conducted based on the UK Biobank cohort. Frailty was assessed using the frailty index (FI) and categorized as robust (FI ≤ 0.10), prefrail (0.10 < FI ≤ 0.25), or frail (FI > 0.25). We used multi-state models and one-sample Mendelian randomization (MR) to investigate the relationships between frailty and the progression trajectories of stroke-dementia comorbidity. Population attributable fraction (PAF) analyses were conducted to assess the attributable risks of frailty and its components.

RESULTS

The final analysis included 459,924 participants. In comparison to the robust, the frail group significantly elevated the risk of transitioning from enrollment to stroke [HR(95 %CI): 2.32(2.19-2.45)], from enrollment to dementia [2.56(2.31-2.83)], from enrollment to mortality [2.32(2.23-2.42)], from stroke to stroke-dementia comorbidity [1.59(1.23-2.05)], from dementia to stroke-dementia comorbidity [1.79(1.29-2.48)], and from stroke to mortality [1.25(1.11-1.40)]. MR analyses revealed that genetically predicted FI was causally associated with higher risks of stroke-dementia comorbidity. PAF analyses indicated that hypertension, diabetes, lung disease, and visual impairment were significant contributors to the risk of progression to stroke-dementia comorbidity.

CONCLUSION

Our findings revealed that frailty status increases the risk of post-stroke dementia, offering important insights for the clinical management and public health strategies.

Human pluripotent stem cell-based cardiac repair: Lessons learned and challenges ahead

The transplantation of human pluripotent stem cell-derived cardiomyocytes (hPSC-CMs) and hPSC-derived cardiac progenitors (hPSC-CPs) represents a promising strategy for regenerating hearts damaged by myocardial infarction (MI). After nearly two decades of experience testing these cell populations in various small- and large-animal MI models, multiple clinical trials have recently been initiated. In this review, we consider the principal lessons learned from preclinical experience with hPSC-CMs and -CPs, focusing on three conclusions that have been supported by the majority of reported transplantation studies. First, hPSC-CMs and -CPs stably engraft in injured hearts and partially remuscularize the infarct scar, but more progress is needed to improve graft cell retention and survival. Second, the transplantation of hPSC-CMs and -CPs has been found to improve contractile function in infarcted hearts, but the mechanistic basis for these effects remains incompletely elucidated. Third, the graft tissue formed by these cells can integrate and activate synchronously with host myocardium, but this capacity for electromechanical integration has been associated with an elevated risk of graft-related arrhythmias. Here, we summarize the preclinical evidence supporting these three observations, identify the relevant gaps and barriers to translation, and summarize ongoing efforts to improve the safety and efficacy of hPSC-CM- and -CP-based regenerative therapies.

What Are the Roots of the Nation's Poor Health and Widening Health Inequalities? Rethinking Economic Growth for a Fairer and Healthier Future

Health inequalities are differences in health between groups in society. Despite them being preventable they persist on a grand scale. At the beginning of 2024, the Institute of Health Equity revealed in their report titled: Health Inequalities, Lives Cut Short, that health inequalities caused 1 million early deaths in England over the past decade. While the number of studies on the prevalence of health inequalities in the UK has burgeoned, limited emphasis has been given to exploring the factors contributing to these (widening) health inequalities. In this commentary article I will describe how the Government's relentless pursuit of economic growth and their failure to implement the necessary regulatory policies to mitigate against the insecurity and health effects neoliberal free market capitalism (referred to as capitalism herein) causes in pursuit of innovation, productivity and growth (economic dynamism) is one key driver underpinning this social injustice. I contend that if the priority really is to tackle health inequalities and ensure health for all then there is an imperative need to move beyond regulation alone to mitigate the worst effects of capitalist production; the goal of the economy has to change to fully restore the balance between economic growth and public health.

Association of whole and refined grains food consumption with coronary artery disease in a multi-center, case-control study of Iranian adults: Iran Premature Coronary Artery Disease (IPAD)

BACKGROUND AND AIMS

Low whole grain food consumption is the leading cause of coronary artery disease (CAD) burden in middle-East countries. However, investigations examining the association of whole and refined grain foods and CAD are scarce in this region. We aimed to investigate the association of whole and refined grain foods with CAD in Iranians with different ethnicities.

METHODS AND RESULTS

This was a multi-center case-control study among Iranian ethnicities consisting of Fars, Azari, Kurd, Arab, Lor, Gilak, Qashqaei, and Bakhtiari within the framework of the Iran premature coronary artery disease (IPAD) project. The data were collected from hospitals with catheterization laboratories. Cases were 2099 patients with a stenosis ≥75 % in at least one vessel or ≥50 % in the left main artery. Control group were 1168 individuals with normal angiography test. Grains intake was assessed using a validated semi-quantitative food frequency questionnaire. Compared with those with the lowest intake of whole grain foods, subjects in the top quartile had lower risk of CAD (OR = 0.54, 95 % CI: 0.40, 0.72; P < 0.001) after full adjustment. However, a significant direct link was found between higher refined grain foods consumption and the risk of CAD (OR = 1.43, 95 % CI: 0.91-1.84; P = 0.013).

CONCLUSION

Our findings support dietary recommendations to increase whole grain foods and mitigating refined grain food consumption to reduce the risk of CAD and its severity.

Advancing network meta-analysis in non-invasive brain stimulation: Optimizing post-stroke mood through combined therapies

BACKGROUND

Post-stroke depression and anxiety significantly impact recovery and quality of life. Non-invasive brain stimulation (NIBS) techniques, including transcranial magnetic stimulation (TMS), transcranial direct current stimulation (tDCS), and transcranial ultrasound stimulation (TUS), have emerged as promising therapeutic options. However, the relative efficacy of single and combined NIBS therapies remains unclear. This network meta-analysis aims to identify the most effective combination therapies for optimizing post-stroke mood disorders.

NEW METHOD

A systematic search was conducted across PubMed, Embase, Cochrane Library, Web of Science, and key Chinese databases to identify randomized controlled trials (RCTs) published up to March 2023. Two independent reviewers screened the studies, extracted relevant data, and assessed the risk of bias using the Cochrane Handbook. A network meta-analysis was performed using Stata SE version 15.1 and R software version 4.2.3 to evaluate the comparative effectiveness of different NIBS interventions.

RESULTS

A total of 50 RCTs involving 3852 participants and 18 different interventions (including 11 combination therapies) were analyzed. The findings revealed: COMPARISON WITH EXISTING METHODS: Unlike previous studies focusing on single-modality interventions, this network meta-analysis systematically evaluates the comparative effectiveness of various combined NIBS strategies. Results indicate that combination therapies significantly outperform single-modality treatments, with TMS-based protocols showing the greatest overall benefit in improving both mood disorders and functional independence.

CONCLUSIONS

The findings suggest that optimized combination NIBS therapies offer superior outcomes for post-stroke depression and anxiety. HFrTMS_LFrTMS_WM was the most effective for depression and independence in activities of daily living (ADLs), while tDCS_psychotherapy and TUS_WM were particularly effective for anxiety. These results highlight the clinical potential of integrated NIBS strategies for post-stroke mood optimization and call for further research to refine treatment protocols for enhanced patient outcomes.

Impact of Intermittent Theta Burst Stimulation on Pain Relief and Brain Connectivity in Chronic Low Back Pain

BACKGROUND

This randomised clinical trial investigated the effect of intermittent theta burst stimulation (iTBS) over the dorsolateral prefrontal cortex (DLPFC) on pain alleviation in patients with chronic low back pain (CLBP) and its underlying mechanisms.

METHODS

Forty CLBP patients were randomly assigned to receive either active or sham iTBS combined with core stability exercise. Pain assessments were completed before and after the intervention. Eleven patients from each group underwent resting-state functional magnetic resonance imaging scans pre- and post-intervention to analyse DLPFC activation and connectivity with other brain regions.

RESULTS

The active iTBS group had a greater pain reduction than the sham group (p = 0.05, 95% CI: -0.009 to 1.109). In the active and sham groups, 80% (16/20) and 40% (8/20) reached the minimal clinically important difference, respectively, with a number needed to treat of 2.5. For the Fear-Avoidance Beliefs Questionnaire, there was a significant difference between the two groups (p = 0.011, r = 0.40). The active iTBS group showed a significantly enhanced functional connectivity between the left DLPFC and the right cerebellum, as well as both occipital gyri (voxel-level, p < 0.001; cluster-level familywise error rate, p < 0.01). Spearman's correlation analysis showed a significant negative correlation between Numerical Rating Scale and the FC of the left DLPFC and the right cerebellum (rho = -0.55, p = 0.008), the right (rho = -0.439, p = 0.01), and left occipital gyri (rho = -0.45, p = 0.034).

CONCLUSION

iTBS may alleviate pain in CLBP patients by enhancing DLPFC connectivity with the cerebellum and occipital gyrus.

SIGNIFICANCE

This study showed a facilitatory effect of iTBS on alleviating CLBP, which might be modulated by brain functional connectivity. Trial Registration Chinese Clinical Trial Registry: ChiCTR2200064899.

Temporal Associations of Physical Activity With Subsequent Knee Pain in Individuals With Knee Osteoarthritis: An Ecological Momentary Assessment Study

BACKGROUND

Physical activity (PA) is a first-line treatment for knee osteoarthritis and provides benefits for functional improvement and pain relief. However, movement-evoked pain often hinders PA participation and long-term adherence. The relationship between PA and pain is not fully understood and may vary across individuals. We examined the temporal associations between PA and subsequent knee pain in individuals with knee osteoarthritis.

METHODS

In a 10-day ecological momentary assessment (EMA) cohort study, PA was recorded using an Actigraph accelerometer; momentary knee pain intensity was rated on a numeric rating scale in responses to four daily text prompts. Linear mixed-effects models examined within-day and between-day associations between PA and knee pain, adjusting for age, sex and BMI.

RESULTS

The sample included up to 454 observations across 10 days from 17 participants (age = 64 ± 7 years, BMI = 27 ± 4 kg/m2, 61% women), each consisting of a temporal pair of PA minutes and subsequent momentary pain. Within-day, greater moderate-to-vigorous PA (MVPA) minutes were associated with a subsequent increase in knee pain (adjusted β = 0.112, 95% CI: 0.023, 0.201, p = 0.014); while light-intensity PA showed no association with subsequent pain (adjusted β = -0.003, 95% CI: -0.011, 0.005, p = 0.461). Current-day MVPA and light-intensity PA minutes were not associated with next-day knee pain.

CONCLUSIONS

While MVPA may temporarily increase knee pain, its impact was transient. Light-intensity PA showed no association with pain, suggesting it may be a suitable alternative for those with movement-evoked pain. Understanding these temporal patterns can help guide tailored pain management and PA adherence strategies. Further research is needed to confirm these preliminary findings.

SIGNIFICANCE STATEMENT

Understanding the dynamic relationship between PA and knee pain is crucial for optimising the management of knee OA. This exploratory study offers new insights by leveraging high-frequency data to examine the intra- and inter-day associations of MVPA and light-intensity PA with subsequent knee pain. The preliminary findings demonstrate that MVPA may lead to transient pain increases, while light-intensity PA is not associated with pain intensity. Identifying these PA-pain temporal patterns can inform personalised strategies for pain management and improving long-term activity adherence.

Targeting Ketone Body Metabolism Improves Cardiac Function and Hemodynamics in Patients With Heart Failure: A Systematic Review and Meta-Analysis

CONTEXT

The impacts of elevated ketone body levels on cardiac function and hemodynamics in patients with heart failure (HF) remain unclear.

OBJECTIVE

The effects of ketone intervention on these parameters in patients with HF were evaluated quantitatively in this meta-analysis.

DATA SOURCES

We searched the PubMed, Cochrane Library, and Embase databases for relevant studies published from inception to April 13, 2024. Ketone therapy included ketone ester and β-hydroxybutyrate intervention.

DATA EXTRACTION

Seven human studies were included for the quantitative analysis.

DATA ANALYSIS

Our results showed that ketone therapy significantly improved left ventricular ejection fraction (standardized mean difference, 0.52 [95% CI, 0.25-0.80]; I2 = 0%), cardiac output (0.84 [95% CI, 0.36-1.32]; I2 = 68%) and stroke volume (0.47 [95% CI, 0.10-0.84]; I2 = 39%), and significantly reduced systemic vascular resistance (-0.92 [95% CI, -1.52 to -0.33]; I2 = 74%) without influencing mean arterial pressure (-0.09 [95% CI: -0.40 to 0.22]; I2 = 0%) in patients with HF. Subgroup analysis revealed that the enhanced cardiac function and favorable hemodynamic effects of ketone therapy were also applicable to individuals without HF.

CONCLUSIONS

Ketone therapy may significantly improve cardiac systolic function and hemodynamics in patients with HF and in patients without HF, suggesting it may be a promising treatment for patients with HF and also a beneficial medical strategy for patients without HF or healthy individuals.

The Association Between Exclusive Breastfeeding and Diarrhoea Morbidity in Infants Aged 0-6 Months: A Rapid Review and Meta-Analysis

Diarrhoea remains a major cause of mortality among children under five, despite global efforts to reduce childhood morbidity and mortality. Exclusive breastfeeding (EBF) has been recognised as an effective and cost-effective intervention to reduce diarrhoeal disease burden in infants. This rapid review and meta-analysis aimed to assess the association of EBF on diarrhoea morbidity in early childhood, a critical period for growth and development, while addressing existing gaps by employing standardised definitions of EBF. A systematic search was conducted in Medline, Scopus, Embase, and Web of Science databases for studies published between 2010 and 2024. Seventeen studies met inclusion criteria and underwent quality assessment using the Joanna Briggs Institute (JBI) critical appraisal tool. Data from the identified studies were extracted, and a meta-analysis was conducted using random effects models to calculate the pooled effect size, with odds ratios (OR) and 95% confidence intervals (CI). This review found that EBF significantly reduces the risk of diarrhoeal diseases in infants under 6 months of age across diverse geographical regions and study designs. The meta-analysis of the association between exclusive breastfeeding and diarrhoea in infants aged 0-6 months resulted in a pooled OR of 0.57 (95% CI: 0.51, 0.63; I² = 57.66%). These findings underscore the critical role of promoting and supporting EBF as a pivotal public health strategy to enhance early childhood health outcomes and contribute to achieving global child health goals.

Nutritional and Psychological Support as a Multidisciplinary Coordinated Approach in the Management of Chronic Liver Disease: A Scoping Review

OBJECTIVES

This review emphasizes a novel, multidisciplinary, coordinated approach in the management of chronic liver diseases (CLDs).

BACKGROUND

Chronic liver diseases represent a significant global health burden, marked by a notable shift in the prevalence patterns from virus-related to metabolic and alcohol-related entities. Malnutrition, frailty, and sarcopenia exert a substantial impact on patients with cirrhosis, affecting 75%-90% of cases and escalating as the disease progresses. The European Association for the Study of the Liver recommends a comprehensive approach to nutritional care, emphasizing the need for detailed assessments in patients with cirrhosis, using diverse tools such as computed tomography scans, bioelectrical impedance analysis, and evaluations of muscle function. Considering the prevalence of nutritional and psychological disorders in the CLD population, the treatment of these patients should be founded indispensably on a multidisciplinary approach.

METHODS

A systematic search was conducted of the PubMed, MEDLINE, and SCOPUS databases to identify trials investigating the health effects of nutritional and psychological assessments in patients with CLD.

RESULTS

In dealing with the treatment of patients with CLD, an exploration of the psychological domain emerges as crucial, because psychological distress, especially depression, exerts a tangible influence on patient outcomes. Thus, the engagement of psychologists and/or psychotherapists, who might use techniques such as cognitive behavioral therapy, could enhance patients' comprehension of nutritional implications in their treatment and make them more aware of their illness.

CONCLUSION

The review emphasizes the relevance of both nutritional and psychological assessments in patients with CLD that could improve patient education on the pivotal role of nutrition in disease management. Randomized controlled trials evaluating the combined impact of nutritional and psychological support are recommended to further investigate this complex clinical landscape.

Behaviour profile characterization of PS19 and rTg4510 tauopathy mouse models: A systematic review and a meta-analysis

The rTg4510 and PS19 mouse models are widely used in tauopathy research. Alzheimer's disease (AD) is the most prevalent among tauopathies. Behavioural tests are frequently used to assess emotional, cognitive, and motor behaviours in mouse models of AD. Cognitive deficits begin to manifest in rTg4510 mice around 3 months of age and in PS19 mice around 6 months. However, it's widely recognized that behavioural outcomes can vary due to environmental factors, health status, and husbandry practices, causing phenotypic differences between facilities. This study aims to consolidate current knowledge of the behavioural phenotypes of these two mouse models. We conducted a comprehensive literature review using keyword searches with Boolean operators across databases up to January 2024. Additional studies were included from manual searches. A total of 23 articles were reviewed for rTg4510 mice and 52 for PS19 mice. We extracted methodological details and key findings from each study. Results for rTg4510 mice show consistent findings regarding locomotion, memory and learning, and neurological dysfunction. However, the limited studies on motor and balance behaviour revealed no significant differences, while anxiety-like behaviour showed some inconsistencies. PS19 mice demonstrate more robust results for anxiety-like behaviour, memory and learning, and locomotion, while findings for balance and coordination are more inconsistent. Although there is overall coherence in certain aspects of the behavioural profiles of these tauopathy mouse models, it is crucial to recognize experimental heterogeneity and profile behavioural baselines to optimize the testing of both genetic and pharmacological interventions.

A promising approach for quantifying focal stroke modeling and assessing stroke progression: optical resolution photoacoustic microscopy photothrombosis

JOURNAL/nrgr/04.03/01300535-202507000-00025/figure1/v/2024-09-09T124005Z/r/image-tiff To investigate the mechanisms underlying the onset and progression of ischemic stroke, some methods have been proposed that can simultaneously monitor and create embolisms in the animal cerebral cortex. However, these methods often require complex systems and the effect of age on cerebral embolism has not been adequately studied, although ischemic stroke is strongly age-related. In this study, we propose an optical-resolution photoacoustic microscopy-based visualized photothrombosis methodology to create and monitor ischemic stroke in mice simultaneously using a 532 nm pulsed laser. We observed the molding process in mice of different ages and presented age-dependent vascular embolism differentiation. Moreover, we integrated optical coherence tomography angiography to investigate age-associated trends in cerebrovascular variability following a stroke. Our imaging data and quantitative analyses underscore the differential cerebrovascular responses to stroke in mice of different ages, thereby highlighting the technique's potential for evaluating cerebrovascular health and unraveling age-related mechanisms involved in ischemic strokes.

Neighborhood socio-demographic profile associated with adequate transitions of stroke care: The transitions of care stroke disparities study

OBJECTIVE

Poor socioeconomic conditions are linked to increased stroke-related mortality and worse clinical outcomes post-stroke. This study examines the association between neighborhood socio-demographic (NSD) profile and adequate transitions of care (ATOC) in acute ischemic stroke patients one month after discharge.

METHODS

The Transitions of Care Stroke Disparities Study (TCSD-S) is an observational prospective cohort investigating disparities in stroke care transitions. Data from 1132 acute ischemic stroke (AIS) patients was obtained from three sources: 1) publicly available NSD data using participants' ZIP codes, 2) Structured telephone interviews at 30 days post-discharge to ascertain participants' behavior in six categories, and 3) covariates obtained from Get with the Guidelines-Stroke® (GWTG-S). Logistic regression models examined the relationship between NSDs and achieving ATOC, defined as adherence to at least 75 % of the six behavioral modifications for ATOC, adjusting for patient demographics, social determinants of health, and stroke severity.

RESULTS

The sample included 56 % males, 51.5 % non-Hispanic White, 22.6 % non-Hispanic Black, and 21.8 % Hispanic individuals, with a median age of 64 (IQR = 55-74 years). ATOC was achieved in 994 (88 %) participants. While NSDs did not independently predict the overall ATOC success, we observed a direct association of NSD profile (education level and median income) with patients' adherence to rehabilitation follow-up (p = 0.03), toxic habit cessation (p = 0.04), and medical appointment attendance (p = 0.04), independent of the effects of individual socioeconomic status.

CONCLUSIONS

Neighborhood socioeconomic status directly impacts protective behaviors. This finding can inform future community-level interventions aimed at improving patients' adherence to behavioral modifications.

The triglyceride-glucose index mediates associations between dietary inflammation index/Composite Dietary Antioxidant Index and cardiovascular disease incidence: insights from NHANES study

AIMS

This study investigates how Dietary Inflammatory Index (DII) and Composite Dietary Antioxidant Index (CDAI) patterns relate to cardiovascular disease, with particular focus on their metabolic connections, providing novel insights for prophylaxis and remedy.

METHODS

Data from NHANES (2009-2014) were utilized in this retrospective cross-sectional research. Binary logistic regression and the generalized linear model (GLM) were applied to assess the correlations among DII, CDAI, metabolic factors, and CVD. Moreover, causal mediation analysis was carried out to further probe into the mediating role of the TyG-index.

RESULTS

Significant positive correlations between DII (odds ratio [OR] 1.08, 95 % confidence interval [CI] 1.01-1.16, p = 0.036) and CVD were observed, while CDAI exhibits a nonlinear association with the risk of CVD. The combined effect analysis indicated that the group with a low DII and high CDAI combination had the least risk (OR 0.52, 95 % CI 0.35-0.78, p = 0.002). TyG-index was found to mediate 4.95 % of the connection between DII and CVD and 8.02 % of the linkage between CDAI and CVD, respectively.

CONCLUSIONS

This study manifests that DII and CDAI are respectively correlated with the risk of CVD incidence. The diet low in inflammation and rich in antioxidants can safeguard against disease occurrence. Serving as a metabolic marker, the TyG-index serves to establish the connection among DII, CDAI, and the progression of CVD.

Relationship Between Hepatic Iron Concentration and Glycemic Metabolism, Prediabetes, and Type 2 Diabetes: A Systematic Review

CONTEXT

Emerging research has suggested a potential link between high iron levels, indicated by serum ferritin levels, and the development of type 2 diabetes (T2D). However, the role of hepatic iron concentration (HIC) on T2D development and progression is not well understood.

OBJECTIVES

This study aims to systematically review the literature on HIC and/or the degree of hepatic iron overload (HIO) in individuals with prediabetes and/or diagnosed T2D, and to analyze associations between HIC and markers of glucose metabolism.

DATA SOURCES

The databases Medline, PubMed, Embase, CINAHL, and Web of Knowledge were searched for studies published in English from 1999 to March 2024. This review followed the Preferred Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist.

DATA EXTRACTION

Data were extracted following the established eligibility criteria. Study characteristics and biomarkers related to prediabetes, T2D, and HIO were extracted. The risk of bias was analyzed using the Newcastle-Ottawa Scale. Data were stratified by the exposure and analyzed in subgroups according to the outcome. Data regarding the HIC values in controls, individuals with prediabetes, and individuals with T2D and the association estimates between HIC or HIO and markers of glycemic metabolism, prediabetes, or T2D were extracted.

DATA ANALYSIS

A total of 12 studies were identified, and data from 4110 individuals were analyzed. HIO was not consistently observed in prediabetic/T2D populations; however, elevated HIC was frequently observed in prediabetic and T2D individuals, and was associated with the disruption of certain glycemic markers in some cases.

CONCLUSION

The extent of iron overload, as indicated by hepatic iron load, varied among the prediabetic and T2D populations studied. Further research is needed to understand the distribution and regulation of iron in T2D pathology.

Effects of hyperbaric oxygen combined with Danhong injection on 90-day functional independence and the 1-year recurrence rate in patients with ischemic stroke: A matched cohort study

BACKGROUND

Both hyperbaric oxygen therapy and Danshen (Salvia miltiorrhiza) injection have shown potential therapeutic effects on ischemic stroke, but the impact of their combination on long-term functional outcomes and recurrence risk has not been systematically evaluated. This study aimed to assess the effects of hyperbaric oxygen combined with Danhong injection on 90-day functional independence and the 1-year recurrence rate in patients with ischaemic stroke.

METHODS

This study employed a retrospective matched cohort design and collected data from patients with ischemic stroke treated at our hospital between January 2018 and December 2022. After 1:1 propensity score matching, 80 patients were included in each group. The intervention group received hyperbaric oxygen therapy (2.0-2.5 ATA, once daily for 10 sessions) combined with Danhong injection (20 ml/day for 14 consecutive days) in addition to standard treatment; the control group received standard treatment only. The primary outcome was 90-day functional independence (mRS ≤2); secondary outcomes included the 1-year stroke recurrence rate, NIHSS score improvement, and others.

RESULTS

The percentage of 90-day functional independence in the intervention group (72.5 %) was significantly greater than that in the control group (53.8 %) (P = 0.014), with a relative risk ratio of 1.35 (95 % CI: 1.06-1.71). Multivariate analysis revealed that combined therapy was independently associated with 90-day functional independence (adjusted OR = 2.28, 95 % CI: 1.19-4.37; P = 0.013). The 1-year stroke recurrence rate in the intervention group (7.6 %) was significantly lower than that in the control group (16.5 %) (P = 0.042), with an adjusted hazard ratio of 0.46 (95 % CI: 0.22-0.94, P = 0.033). Subgroup analysis revealed that patients aged <65 years, those with NIHSS scores ranging from 4-15, those with small-artery occlusion or large-artery atherosclerosis stroke, and those who began treatment within 24 hours benefited more significantly. The combined therapy was well tolerated, with no serious adverse events.

CONCLUSION

Hyperbaric oxygen combined with Danhong injection significantly improved 90-day functional independence and reduced the 1-year recurrence risk in patients with ischaemic stroke, particularly in specific patient subgroups. This combined treatment strategy provides a new therapeutic option for comprehensive stroke management.

Association between serum uric acid to high-density lipoprotein cholesterol ratio and all-cause and cardiovascular disease mortality after stroke: A cross-sectional study from 2005 to 2018

BACKGROUND AND AIMS

The uric acid to high-density lipoprotein cholesterol ratio (UHR) has been shown to be associated with multiple metabolic diseases and inflammation. Stroke is the second leading cause of death and the third leading cause of disability worldwide. This study investigated the relationship between serum UHR and mortality in adults with stroke.

METHODS AND RESULTS

This study recruited 1,382 participants with stroke from the 2005-2018 National Health and Nutrition Examination Survey (NHANES). Mortality outcome data were determined by the National Death Index (NDI). Multivariate hazard ratio (HR) and 95 % confidence interval (CI) were assessed using Cox proportional risk modeling and threshold effects analysis. Stratified analyses identified high-risk mortality groups. Among the participants, 508 all-cause mortality occurred, including 135 cardiovascular disease (CVD) mortality. After multivariate adjustment, UHR was significantly and linearly associated with all-cause mortality (HR 1.05, 95 % CI 1.01-1.08). An inverted U-shaped relationship was observed between UHR and CVD mortality, plateauing at 14.42 %. Below this threshold, a 1-unit increase in UHR was linked to a 27 % higher risk of CVD mortality (HR 1.27, 95 % CI 1.07-1.51). However, above the threshold, a 1-unit increase in UHR corresponded to a 11 % reduction in CVD mortality (HR 0.89, 95 % CI 0.79-1.00).

CONCLUSIONS

A linear relationship between UHR and all-cause mortality, as well as an inverted U-shaped association between UHR and CVD mortality, were observed in adults with stroke in the United States. The threshold for CVD mortality was identified at a UHR of 14.42 %.

Acomprehensive review on microalgae protein as an emerging protein resource

The growing global population is driving an increased demand for protein, while traditional protein sources are increasingly by limited arable land and rising carbon emissions. To meet the sustainable development goals, it is essential to explore sustainable protein alternatives. This article reviews the progress in research on microalgal protein, focusing on its extraction, nutritional profile, bioactivity, functionality, applications, and future challenges. Microalgal protein offers a balanced amino acid composition compared to traditional protein sources. While current mild extraction methods are the main approaches to improving extraction efficiency, advancing promising technologies is also critical. Microalgal protein holds significant potential for development in the food and medicinal sectors; however, the potential toxicity and allergenicity associated with the growth environments of microalgae present safety challenges for consumption. Research on microalgal protein is still in its early stages, and further advancements in extraction techniques could enhance its usability in food applications.

Enhancing biofabrication: Shrink-resistant collagen-hyaluronan composite hydrogel for tissue engineering and 3D bioprinting applications

Biofabrication represents a promising technique for creating tissues for regeneration or as models for drug testing. Collagen-based hydrogels are widely used as suitable matrix owing to their biocompatibility and tunable mechanical properties. However, one major challenge is that the encapsulated cells interact with the collagen matrix causing construct shrinkage. Here, we present a hydrogel with high shape fidelity, mimicking the major components of the extracellular matrix. We engineered a composite hydrogel comprising gallic acid (GA)-functionalized hyaluronic acid (HA), collagen I, and HA-coated multiwall carbon nanotubes (MWCNT). This hydrogel supports cell encapsulation, exhibits shear-thinning properties enhancing injectability and printability, and importantly significantly mitigates shrinkage when loaded with human fibroblasts compared to collagen I hydrogels (∼20 % vs. > 90 %). 3D-bioprinted rings utilizing human fibroblast-loaded inks maintain their shape over 7 days in culture. Furthermore, inclusion of HAGA into collagen I hydrogels increases mechanical stiffness, radical scavenging capability, and tissue adhesiveness. Notably, the here developed hydrogel is also suitable for human induced pluripotent stem cell-derived cardiomyocytes and allows printing of functional heart ventricles responsive to pharmacological treatment. Cardiomyocytes behave similar in the newly developed hydrogels compared to collagen I, based on survival, sarcomere appearance, and calcium handling. Collectively, we developed a novel material to overcome the challenge of post-fabrication matrix shrinkage conferring high shape fidelity.

Transcatheter aortic valve implantation in elderly patients with severe aortic stenosis and rheumatic phenotype

Significant fibrosis is characteristic of rheumatic aortic valve disease that affects anchoring and deployment of the trans-catheter heart valve. Our goal was to determine whether trans-catheter aortic valve implantation (TAVI) is an effective treatment option for severe aortic stenosis patients with rheumatic valvular disease. This study is a prospective cohort study that includes a total of 54 rheumatic severe aortic stenosis patients who were referred for TAVI. The age ranged from 65.00 to 83.00 years (mean age 72.75 ± 5.86 years). Notably, 63% of the patients had undergone preimplantation balloon dilatation. The outcomes included total new conduction disturbances (transient and permanent defects of atrio-ventricular block and left bundle branch block) in 31.4% of the patients, permanent pacemaker implantation in 3.7%, and valve embolization in 1.85%, and no patients had moderate to severe para-valvular leak. All-cause death within a 6-month follow-up was 3.7%. This cohort was then compared to a propensity score matched group of degenerative calcific severe aortic stenosis of 54 cases revealing comparable post-procedural results. Compared with the outcomes of TAVI in patients with degenerative aortic stenosis, TAVI represents a viable and durable option for rheumatic severe aortic stenosis patients.

Autistic Traits and Psychosocial Predictors of Depressive Symptoms

Higher rates of depression and of depressed mood are associated with autistic traits, and both are associated with social interaction factors, such as social self-efficacy, social motivation and loneliness. This study examined whether these social factors explain the association between autistic traits and depression. 658 participants (527 women) completed an online survey with measures of autistic traits (AQ), social self-efficacy (Social Self-Efficacy Scale), social motivation (Social Striving Assessment Scale), loneliness (UCLA Loneliness Scale) and depressive symptoms (Beck Depression Inventory-II). A mediation analysis found the relationship between autistic traits and depressive symptoms was fully mediated by the other three factors (β[indirect] = .005, z = 2.63, p < .01; β[direct] = .05, z = 1.58, p > .05), forming a pathway from autistic traits, to social self-efficacy, to social motivation, to loneliness and finally to depressive symptoms. These results suggest that targeting social self-efficacy may break this pathway and disrupt this relationship. Interventions targeting supporting positive social interaction should be considered.

Obesity and its management in primary care setting

Obesity is a worldwide epidemic affecting adults and children, regardless of their socioeconomic status. Significant progress has been made in understanding the genetic causes contributing to obesity, shedding light on a portion of cases worldwide. In young children with severe obesity however, recessive mutations, i.e., leptin or leptin receptor deficiency should be sought. Much more has been learned about the far-reaching impact of obesity on complications, including cardiovascular disease, liver and kidney dysfunction, diabetes, inflammation, hypertension, sleep, cancer, and the eye. Preventive strategies, particularly in children, are crucial for reducing obesity rates and mitigating its long-term complications. While dietary modifications and lifestyle changes remain the cornerstone of obesity prevention or treatment, recent advancements have introduced highly effective pharmacological options complementing weight-reduction surgery. Newer medications, like incretin-based therapies including glucagon-like peptide-1 agonists (GLP-1RA), have demonstrated remarkable efficacy in promoting weight loss, offering new insights into margining obesity-related conditions. Primary care providers, whether treating adults or children, play a pivotal role in preventing obesity, initiating treatment, and making onward referrals to specialists to assist in managing obesity and obesity-related complications.

Obesity hypoventilation syndrome: Current status and future directions for optimizing care of a complex and diverse condition (a narrative review)

The global obesity pandemic contributes to an increase in the prevalence of obesity hypoventilation syndrome (OHS). OHS is associated with poor prognosis and early mortality. Definitions of OHS and disease severity classifications differ between international guidelines, and consideration of polysomnographic features is often lacking. To address this, the European Respiratory Society has proposed a severity classification approach. It is also important to consider the possibility that patients with OHS might have multiple factors contributing to hypercapnia, including obesity-related changes in the respiratory system, alterations in central respiratory drive, and different sleep-disordered breathing (SDB) abnormalities. There are also multiple health trajectories that occur before an OHS diagnosis. Positive airway pressures such as continuous positive airway pressure or non-invasive ventilation are the mainstay of OHS treatment. The choice of therapy needs to be guided by appropriate SDB phenotyping and daytime hypercapnia severity. Comorbidities are common in patients with OHS and these trigger and increase the risk of acute on chronic respiratory failure. Appropriate management of comorbidities, and weight loss management, are essential (including behavioral interventions, physical activity, pharmacotherapy, and metabolic/bariatric procedures, as appropriate for each individual). Newer pharmacological treatments such as glucagon-like peptide-1 receptor agonists, recombinant human leptin, and orexin receptor antagonists are promising, but have not yet been specifically investigated in OHS populations. Overall, there is a need for a significant redesign in assessment and care to facilitate the evidence-based management of the complex and diverse OHS presentations in clinical practice.

Lipocalin 2 mediates kidney function abnormalities induced by ischemic stroke in mice: Involvement of neural pathways

BACKGROUND

Kidney function abnormalities is a common complication following ischemic stroke. Lipocalin 2 (LCN2) is currently a well-recognized specific biomarker of tubular injury. However, the role of LCN2 in kidney function abnormalities following stroke remains elusive. The sympathetic nervous system plays a crucial role in linking the brain and kidney. However, whether the kidney sympathetic nervous system regulates the expression of LCN2 following ischemic stroke has not been identified.

METHODS

In this study, we established a middle cerebral artery occlusion (MCAO) model to induce ischemic stroke in mice. Renal function was assessed 24 h after cerebral ischemia-reperfusion injury. Transcriptomic sequencing of kidney tissue was performed to identify potential pathological mechanisms. The role of LCN2 in post-stroke renal injury was investigated using renal tubule-specific LCN2 knockout mice and a combination of qPCR, western blotting, immunofluorescence, and transmission electron microscopy. In addition, renal denervation (RDN) was used to explore the relationship between sympathetic nerves and the expression of renal LCN2.

RESULTS

Ischemic stroke significantly exhibits renal functional impairment 24 h after reperfusion. Notably, RNA sequencing and Western blotting revealed a markedly increased expression of renal LCN2 following ischemic stroke. Renal tubular Lcn2-specific knockout significantly ameliorated the occurrence of kidney function abnormalities after stroke. Subsequently, we observed that the activation of renal sympathetic nerves upregulates LCN2 and induces kidney function abnormalities after stroke.

CONCLUSIONS

These findings reveal a neural pathway in which the sympathetic nervous system upregulates LCN2, providing potential therapeutic strategies for renal protection following ischemic stroke.

Specialized Pro-Resolving Mediators as Emerging Players in Cardioprotection: From Inflammation Resolution to Therapeutic Potential

AIM

Timely myocardial reperfusion is essential for restoring blood flow to post-ischemic tissue, thereby reducing cardiac injury and limiting infarct size. However, this process can paradoxically result in additional, irreversible myocardial damage, known as myocardial ischemia-reperfusion injury (MIRI). The goal of this review is to explore the role of specialized pro-resolving mediators (SPMs) in atherosclerosis and MIRI, and to assess the therapeutic potential of targeting inflammation resolution in these cardiovascular conditions.

METHODS

This review summarizes current preclinical and clinical evidence on the involvement of SPMs in the pathogenesis of atherosclerosis and MIRI, acknowledging that several cellular and molecular aspects of their mechanisms of action remain to be fully elucidated.

RESULTS

MIRI is a complex phenomenon in which inflammation, initially triggered during ischemia and further amplified upon reperfusion, plays a central role in its pathogenesis. Various cellular and molecular players mediate the initial pro-inflammatory response and the subsequent anti-inflammatory reparative phase following acute myocardial infarction (AMI), contributing both to ischemia- and reperfusion-induced damage as well as to the healing process. SPMs have emerged as key endogenous immunoresolvents with potent anti-inflammatory, antioxidant, and pro-resolving properties that contribute to limit excessive acute inflammation and promote tissue repair. While dysregulated SPM-related signaling has been linked to various cardiovascular diseases (CVD), their precise role in AMI and MIRI remains incompletely understood.

CONCLUSION

Targeting inflammation resolution may represent a promising therapeutic strategy for mitigating atheroprogression and addressing a complex condition such as MIRI.

Calcitonin Gene-Related Peptide Levels in Children and Adolescents With Primary Headache Disorder

ObjectiveThis study aimed to investigate calcitonin gene-related peptide (CGRP) levels in children and adolescents with primary headache.MethodsAll patients underwent blood sampling regardless of their headache state (ictal or interictal) on the day of examination. The patients were grouped based on their headache diagnosis (migraine, tension-type headache, or mixed).ResultsNinety-two patients aged 5-18 years were included (29 diagnosed with migraine and 31 with tension-type headache). In the comparisons between the patients with migraine and the patients with tension-type headache, interictal CGRP levels in blood from the cubital vein showed no significant difference. Ictal samples were collected in the tension-type headache group only, and no significant difference was observed between the ictal and interictal phases. Variables such as headache diagnosis, sex, age, family history with primary headache, headache frequency, time since last headache, medication usage, and body mass index did not significantly influence CGRP levels.ConclusionNo significant difference in interictal CGRP levels between patients with migraine and patients with tension-type headache were found. In patients with tension-type headache, there were no significant differences between CGRP levels in the ictal and interictal state. We were not able to draw conclusions about differences in ictal levels of CGRP in patients with migraine compared with patients with tension-type headache, or in differences between ictal and interictal levels in patients with migraine. Future studies should aim to replicate these results in a larger study cohort.

Association and biological pathways between metabolic syndrome and incident Parkinson's disease: A prospective cohort study of 289,150 participants

The relationship between metabolic syndrome (MetS) and Parkinson's disease (PD) remains uncertain due to inconsistent findings in previous studies. This prospective cohort study investigated the association between MetS and PD risk, along with potential biological mechanisms, using data from 289,150 PD-free participants in the UK Biobank. MetS was defined by the presence of at least three of the following components, while preMetS included one or two: increased waist circumference, elevated triglycerides (TG), high blood pressure (BP), elevated HbA1c, or reduced high-density lipoprotein cholesterol (HDL-C). Cox proportional hazards models were utilized to assess the risk of PD, and mediation analyses explored the role of blood biomarkers. Over a median follow-up of 13.1 years, 1682 participants developed PD. PreMetS (HR: 1.24, 95 % CI: 1.02-1.51, P = 0.028) and MetS (HR: 1.32, 95 % CI: 1.08-1.61, P = 0.008) were associated with an increased PD risk, with Kaplan-Meier analysis showing risk escalation with more MetS components. Among individual MetS components, increased waist circumference, elevated HbA1c, and reduced HDL-C were significantly associated with higher PD risk, while elevated TG and BP showed no significant association. Mediation analysis indicated that biomarkers of liver function (alkaline phosphatase) and kidney function (cystatin C) partially mediated the MetS-PD relationship. These findings highlight a significant link between MetS and higher PD risk, with possible mediation through specific blood biomarkers, though temporal ambiguity warrants cautious interpretation.

Xiongshao Zhitong granules alleviate nitroglycerin-induced migraine by regulating the TRPV1-mediated NLRP3 inflammatory pathway in rats

BACKGROUND

Migraine is a prevalent neurological disorder accompanied by a considerable economic burden. Xiongshao Zhitong granules (XSZT) have anti-inflammatory and analgesic functions in the clinic and are used for migraine therapy. However, the mechanisms by which XSZT treats migraine remain unclear.

PURPOSE

To discover the underlying mechanism and active ingredients of XSZT in the treatment of migraine.

METHODS

The nitroglycerin (NTG)-induced chronic migraine (CM) model was established and used to detect the therapeutic effect of XSZT on migraine. To elucidate the mechanism, we detected transient receptor potential vanilloid 1 (TRPV1) -mediated NOD-like receptor protein 3 (NLRP3) inflammasome activation in the CM rat model and the LPS-induced inflammatory BV-2 cell model using Western blotting, immunofluorescence and ELISA techniques. The potentially active ingredients of XSZT were determined by UHPLC-LTQ-Orbitrap MS, molecular docking, and surface plasmon resonance.

RESULTS

Our findings revealed that XSZT reduced the number of head scratching, increased the periorbital pain threshold and shortened the time spent in the dark box, decreased c-Fos expression in the CM rat model, suggesting an analgesic effect of XSZT on migraine. XSZT inhibited neurogenic inflammation, including downregulating CGRP, TNF-α, IL-1β and IL-18 levels and decreasing the degranulation rate of mast cells. Additionally, XSZT suppressed the expression and activation of TRPV1 and the NLRP3 inflammasome in the trigeminal nucleus caudalis. In vitro experiments confirmed that activated TRPV1 increased the level of the NLRP3 inflammasome by increasing intracellular calcium levels. Galloylpaeoniflorin, isogastrin, ellagic acid and salvianolic acid A interacted with TRPV1 and inhibited IL-1β secretion.

CONCLUSION

XSZT plays a therapeutic role in migraine through regulating TRPV1-mediated NLRP3 inflammatory activation and galloylpaeoniflorin, isogastrin, ellagic acid and salvianolic acid A might be the active ingredients of XSZT, which provides an experimental basis for the clinical treatment of migraine.

The value of extra-diaphragmatic inspiratory muscle surface electromyography during postural control tasks in patients with chronic obstructive pulmonary disease

Concurrent dysfunctions in postural control and diaphragm are observed in patients with chronic obstructive pulmonary disease (COPD). Measuring diaphragm activation traditionally involves transesophageal diaphragm electromyography (EMGdi), which is costly and relatively invasive. Extra-diaphragmatic inspiratory muscle surface electromyography may serve as a useful physiological marker for EMGdi. This study compared EMGdi amplitude with surface EMG amplitude of other inspiratory muscles, including sternocleidomastoid (sEMGscm), scalene (sEMGscal), and parasternal intercostal muscles (sEMGic) during postural control tasks in nine patients with COPD (5 males; age: 65 ± 6 years; forced expiratory volume in the first second: 60 ± 27 % predicted). Simultaneous recordings of EMGdi, sEMGscm, sEMGscal, and sEMGic amplitudes were obtained during six postural control tasks involving upright standing with ballistic arm movements under different conditions of support surface (stable/foam), arm movement frequency (single/repetitive), and breathing modes (normal/breath-hold at end-expiration). EMG amplitudes were normalized to each muscle's maximum voluntary contraction. A linear mixed model with Bonferroni-Holm post-hoc tests and Bland-Altman analyses were performed. There was a significant EMG-by-task interaction (p = 0.0223). The amplitude of EMGdi was significantly lower than sEMGic across all tasks (p < 0.0001 to 0.0007), while no significant differences were observed between EMGdi and sEMGscm or EMGdi and sEMGscal after Bonferroni-Holm correction (p = 0.019-0.858). Bland-Altman analyses indicated reasonable agreement between EMGdi and both sEMGscm and sEMGscal (mean biases: 1.8 % and -3.7 %), while sEMGic had a significantly higher overall bias of -20.7 %. These findings suggest that both sEMGscal and sEMGscm can serve as useful physiological markers for EMGdi in postural control assessments in patients with COPD. NEW & NOTEWORTHY. This study highlights the potential of extra-diaphragmatic inspiratory muscle surface electromyography as a physiological marker for transesophageal diaphragm electromyography during postural control tasks in patients with COPD, thereby reducing the need for costly and invasive measurements.

Demystifying Obesity: Understanding, Prevention, Treatment, and Stigmas

Obesity is a complex chronic disease that affects millions of people worldwide. There is still significant stigma associated with it, which can lead to discrimination and create additional barriers for people who are already in treatment. On the other hand, it is noted that it can have serious implications for health and predisposition to noncommunicable chronic diseases. In this sense, the objective of this study was to carry out a narrative review involving all current elements for understanding, prevention, treatment, and debate of stigmas related to obesity. A search was conducted in 2024 for original articles, randomized or nonrandomized clinical trials, systematic reviews, meta-analyses, and guidelines in the following databases: Pubmed, Scielo, Web of Science, CrossRef, and Google Scholar. The publication period was from 2014 to 2024. Obesity is influenced by a complex combination of genetic, environmental, and psychological factors. It is encouraging to see that various emerging points have been identified across different fields such as histology, physiology, genetics, weight loss, and public policy. These obesity areas certainly warrant attention and future studies. Researchers can delve into these topics to deepen their understanding and potentially uncover novel insights. The management should be multifactorial and individualized for each patient. Public policies also play a crucial role in combating obesity, including health promotion, prevention of excessive weight gain, early diagnosis, and proper care of patients. It is crucial that society begins to see the disease as an extremely complex element and not as a moral failure or lack of willpower. This requires a change in the way people talk about obesity, as well as practices that support people instead of stigmatizing them. Obesity does not have a specific address, color, or race. It belongs to everyone and should be regarded as a global public health problem.

The impact of sex on blood pressure

PURPOSE OF REVIEW

Hypertension is the most prevalent cardiovascular disease worldwide and the leading cause of mortality in both men and women. Despite well documented sex differences in prevalence, risk factors, and treatment responses, current guidelines still fail to take these specificities into account. A more tailored approach, accounting for sex-specific pathophysiological mechanisms and risk factors, is essential.

RECENT FINDINGS

Studies show that hypertension is more prevalent in men than in women until menopause. After menopause, the prevalence increases in women, likely due to hormonal changes. Additionally, genetic, metabolic, and social risk factors differ between the sexes, as do cardiovascular risks and associated comorbidities. Pharmacokinetic and pharmacodynamic variations also impact antihypertensive treatment efficacy and side effects, highlighting the need for a more individualized therapeutic strategy. This review explores the pathophysiology of hypertension by sex, global risk factors with a focus on female-specific aspects, and sex-related cardiovascular risks. We also discuss antihypertensive treatments and their effectiveness based on gender-specific characteristics.

SUMMARY

Incorporating sex differences into hypertension management could enhance treatment efficacy and reduce cardiovascular mortality. Further research is needed to refine guidelines and develop personalized therapeutic strategies, optimizing hypertension care and improving patient outcomes.

Diet, Activity and Sleep Clusters Associated With Obesity Markers of Children in the US-Affiliated Pacific

AIM

Among children in the US-Affiliated Pacific, we aimed to identify lifestyle clusters and associations with obesity.

METHODS

Movement behaviours, diet and anthropometrics were from the Children's Healthy Living Program (n = 1780; 2012-2015). Partitioning-around-medoids identified clusters; regression examined differences in anthropometrics.

RESULTS

Among 2-5-year-olds, boys' clusters were: (1) high %energy from (E%) fat and sedentary behaviour; (2) high screen time and energy intake and (3) long sleep. Body mass index z-score (zBMI) was lower in Cluster 3 versus 1 (-0.28 [-0.50; -0.07], p = 0.01). Girls' clusters were: (1) high energy intake; (2) low E% fat and (3) high physical activity and sleep. zBMI was lower in Cluster 3 versus 1 (-0.34 [-0.55; -0.13], p = 0.002). Among 6-8-year-olds, boys' clusters were: (1) high screen time; (2) high energy intake; (3) high E% protein; (4) long sleep and (5) high sedentary time and low E% saturated fat. Compared with Cluster 1, zBMI was lower in Clusters 3 (-0.43 [-0.84; -0.02], p = 0.04), 4 (-0.64 [-1.08; -0.20], p = 0.004) and 5 (-0.93 [-1.35; -0.51], p < 0.001). Girls' clusters were: (1) high E% fat and protein; (2) high screen time and energy intake; (3) short sleep and high physical activity (4) long sleep and (5) low sedentary time. Compared with Cluster 1, zBMI was lower in Clusters 2 (-0.57 [-0.98; -0.17], p = 0.006), 3 (-0.48 [-0.81; -0.14], p = 0.005) and 5 (-0.50 [-0.83; -0.18], p = 0.003).

CONCLUSION

Various lifestyle patterns support healthy body weight.

TRIAL REGISTRATION

ClinicalTrials.gov identifier: NCT01881373.

Advanced nanoparticle engineering for precision therapeutics of brain diseases

Despite the increasing global prevalence of neurological disorders, the development of nanoparticle (NP) technologies for brain-targeted therapies confronts considerable challenges. One of the key obstacles in treating brain diseases is the blood-brain barrier (BBB), which restricts the penetration of NP-based therapies into the brain. To address this issue, NPs can be installed with specific ligands or bioengineered to boost their precision and efficacy in targeting brain-diseased cells by navigating across the BBB, ultimately improving patient treatment outcomes. At the outset of this review, we highlighted the critical role of ligand-functionalized or bioengineered NPs in treating brain diseases from a clinical perspective. We then identified the key obstacles and challenges NPs encounter during brain delivery, including immune clearance, capture by the reticuloendothelial system (RES), the BBB, and the complex post-BBB microenvironment. Following this, we overviewed the recent progress in NPs engineering, focusing on ligand-functionalization or bionic designs to enable active BBB transcytosis and targeted delivery to brain-diseased cells. Lastly, we summarized the critical challenges hindering clinical translation, including scalability issues and off-target effects, while outlining future opportunities for designing cutting-edge brain delivery technologies.

The Stroke Burden in China and Its Long-Term Trends: Insights from the Global Burden of Disease (GBD) Study 1990-2021

BACKGROUND AND AIM

To explore effective preventive strategies for stroke, it is of paramount importance to systematically assess its risk factors. Leveraging the Global Burden of Disease (GBD) data, this study aims to retrospectively analyze the long-term trends and epidemiological characteristics of stroke in China.

METHODS AND RESULTS

Drawing on the GBD 2021 data, this study conducted a comprehensive analysis of the burden of stroke in the Chinese population, encompassing prevalence, incidence, mortality, years of life lost (YLL), years lived with disability (YLDs), and disability-adjusted life years (DALYs). Subsequently, we examined the temporal trends of these indicators and employed a Joinpoint regression analysis coupled with an age-period-cohort (APC) model to precisely dissect mortality and incidence patterns. Furthermore, we delved into the attributable burden of stroke. The results indicated that the prevalence of stroke in China reached 26 million in 2021, representing a 104.26 % increase since 1990. Compared to 1990, the number of DALYs attributable to stroke increased by 45.25 %. Joinpoint analysis revealed a declining trend in incidence rates, while mortality rates showed a significant reduction. The APC model fitting outcomes suggested that prevalence rates were higher in recent generations than in the past, with an increase observed within the same age cohort. Notably, in 2019, the primary burden of cardiovascular diseases (CVDs) stemmed from metabolic risks, particularly hypertension, followed by air pollution particulate matter as an environmental risk factor.

CONCLUSIONS

Given China's vast population base and rapid aging process, the burden of stroke has emerged as a significant public health concern.

Impact of triglyceride glucose - Body mass index on depression risk in Chinese middle-aged and elderly adults: Evidence from a large-scale study

BACKGROUND

Current literature lacks evidence to characterize the relationship between the triglyceride glucose - body mass index (TyG-BMI) and depression. Therefore, this study aimed to elucidate the potential association between TyG-BMI and depression risk in a Chinese middle-aged and elderly population.

METHODS

The study utilized data from the China Health and Retirement Longitudinal Study (CHARLS) conducted in 2011, which included 17,708 participants. We used multifactorial logistic regression modeling to investigate the relationship between TyG-BMI and depression in Chinese adults, using smoothed curve fitting to assess the nonlinear relationship between them. In addition, we performed sensitivity and subgroup analyses to verify the robustness of the results.

RESULTS

A total of 9328 participants were included in our study, After adjusting for all potential covariates, participants with higher levels of TyG-BMI had a lower risk of depression compared to Q1, the adjusted OR (95 % CI) values were Q2 (OR: 0.84, 95 % CI: 0.74-0.96, p = 0.009), Q3 (OR: 0.75, 95 % CI: 0.65-0.86, p < 0.001), and Q4 (OR: 0.67, 95 % CI: 0.57-0.79, p < 0.001). The association between TyG-BMI and depression exhibited an L-shaped curve (nonlinear, p = 0.004). When TyG-BMI <200, Increased TyG-BMI was associated with a significantly lower risk of depression (OR = 0.87 [95 %CI:0.82-0.93], p < 0.001). However, there was no association between TyG-BMI and depression when TyG-BMI ≥200 (OR = 0.96 [95 %CI:0.91-1.02], p = 0.22).

CONCLUSION

The connection between TyG-BMI and depression in Chinese adults is L-shaped, with an inflection point around 200.

Peripheral Neuropathy Symptoms and Ocular Surface Lesions in Patients with Type 2 Diabetes Mellitus and Dry Eye: A Clinical Correlational Study

INTRODUCTION

Reduced corneal sensation in individuals with type 2 diabetes mellitus (T2DM) leads to a dissociation between dry eye disease (DED) signs and symptoms, thereby affecting diagnostic accuracy. This study aimed to investigate the correlation between ocular surface signs and diabetic peripheral neuropathy (DPN) symptoms in patients with T2DM-associated DED.

METHODS

The Michigan Neuropathy Screening Instrument Questionnaire (MNSIQ) was used to categorize patients with T2DM into MNSIQ-DPN and non-DPN groups. Ocular irritation symptoms were evaluated using the Ocular Surface Disease Index (OSDI) questionnaire. Ocular surface lesions were assessed via Cochet-Bonnet esthesiometry, corneal fluorescein staining (CFS), the Schirmer I tear test (SIT), tear meniscus height (TMH), noninvasive keratography break-up time (NIKf-BUT), and the meibomian gland loss (MGL) grade detected by OCULUS. Corneal nerve fiber parameters were evaluated using in vivo confocal microscopy (IVCM).

RESULTS

A total of 116 patients with T2DM, comprising 76 non-DPN patients and 40 MNSIQ-DPN patients, along with 51 age-matched participants without diabetes, were enrolled. Although OSDI scores were equivalent between MNSIQ-DPN patients and non-DPN patients, MNSIQ-DPN patients presented significantly more severe CFS (p < 0.001), meibomian gland dysfunction (MGD) (p < 0.001), corneal nerve fiber loss (p < 0.001), sensory dysfunction (p = 0.02), and corneal microneuromas (p < 0.001). The MNSIQ score was significantly positively correlated with CFS (p < 0.001); MGD (p < 0.01); corneal nerve fiber loss, including corneal nerve fiber density and length and branch density, in the paracentral (all p < 0.001) and inferior-whorl areas (p < 0.01, p < 0.05 and p < 0.01, respectively); and corneal microneuromas, characterized by increased microneuroma numbers (p < 0.001) and areas (p < 0.001) in these regions.

CONCLUSION

MNSIQ scores were significantly and robustly correlated with the presence of corneal epithelial defects, MGD, and nerve fiber loss in patients with T2DM. These findings suggest that DPN is a critical factor in diabetic ocular surface complications, highlighting the importance of the MNSIQ for assessing these conditions.

Biomarkers of aging: from molecules and surrogates to physiology and function

Many countries face an unprecedented challenge in aging demographics. This has led to an exponential growth in research on aging, which, coupled to a massive financial influx of funding in the private and public sectors, has resulted in seminal insights into the underpinnings of this biological process. However, critical validation in humans has been hampered by the limited translatability of results obtained in model organisms, additionally confined by the need for extremely time-consuming clinical studies in the ostensible absence of robust biomarkers that would allow monitoring in shorter time frames. In the future, molecular parameters might hold great promise in this regard. In contrast, biomarkers centered on function, resilience, and frailty are available at the present time, with proven predictive value for morbidity and mortality. In this review, the current knowledge of molecular and physiological aspects of human aging, potential antiaging strategies, and the basis, evidence, and potential application of physiological biomarkers in human aging are discussed.

An experimental study on the optimal timing of modified pharyngeal electrical stimulation for the treatment of dysphagia after stroke in rats

As a novel neuroregulatory technique, modified pharyngeal electrical stimulation (mPES) has demonstrated clinical potential in improving swallowing function. However, there is a notable lack of animal studies exploring this approach. While our previous research validated the optimal parameters for post-stroke dysphagia (PSD) in rats, it did not establish the ideal timing for initiating treatment. This study aimed to identify the optimal time for mPES treatment in the rehabilitation of PSD. Seventy-four Sprague-Dawley (SD) rats were randomly assigned to six groups: a model group, a sham group, and four mPES groups (with treatment initiated at 24 h, 72 h, 5 days, and 7 days post-modeling). All treatment groups received mPES therapy for three consecutive days. Following the intervention, swallowing function was re-evaluated using videofluoroscopic swallowing studies (VFSS), and western blotting analysis was conducted to assess the excitability of sensorimotor cortex. Compared to the model group, all mPES groups exhibited improvements in swallowing function. Among them, the group receiving treatment 72 h post-modeling demonstrated the most significant enhancements (P < 0.05). In addition, The expressions of N-methyl-D-aspartic acid receptor (NMDAR1) and Vesicular glutamate transporter 2 (Vglut2) were higher in the 72-hour group compared to the 7 day group (P < 0.05). This study concluded that mPES treatment was effective when initiated at any of the tested time points-24 h, 72 h, 5 days, or 7 days post-modeling. However, initiating treatment 72-hour post-modeling yielded the greatest improvement in swallowing function in PSD rats.

Predicted plasma proteomics from genetic scores and treatment outcomes in major depression: a meta-analysis

Proteomics has been scarcely explored for predicting treatment outcomes in major depressive disorder (MDD), due to methodological challenges and costs. Predicting protein levels from genetic scores provides opportunities for exploratory studies and the selection of targeted panels. In this study, we examined the association between genetically predicted plasma proteins and treatment outcomes - including non-response, non-remission, and treatment-resistant depression (TRD) - in 3559 patients with MDD from four clinical samples. Protein levels were predicted from individual-level genotypes using genetic scores from the publicly available OmicsPred database, which estimated genetic scores based on genome-wide genotypes and proteomic measurements from the Olink and SomaScan platforms. Associations between predicted protein levels and treatment outcomes were assessed using logistic regression models, adjusted for potential confounders including population stratification. Results were meta-analysed using a random-effects model. The Bonferroni correction was applied. We analysed 257 proteins for Olink and 1502 for SomaScan; 111 proteins overlapped between the two platforms. Despite no association was significant after multiple-testing correction, many top results were consistent across phenotypes, in particular seven proteins were nominally associated with all the analysed outcomes (CHL1, DUSP13, EVA1C, FCRL2, KITLG, SMAP1, and TIM3/HAVCR2). Additionally, three proteins (CXCL6, IL5RA, and RARRES2) showed consistent nominal associations across both the Olink and SomaScan platforms. The convergence of results across phenotypes is in line with the hypothesis of the involvement of immune-inflammatory mechanisms and neuroplasticity in treatment response. These results can provide hints for guiding the selection of protein panels in future proteomic studies.

Bracing in Osteoarthritis

Bracing options for the therapeutic and preventative treatment of cartilage injury and osteoarthrosis have traditionally been understudied and underutilized due to poor patient compliance and a lack of published clinical efficacy data. However, recent advancements in 3-dimensional printing, biomechanical analysis of the joint, and dynamic joint unloading technologies are re-establishing bracing as an effective, low-cost, and low-risk non-surgical treatment option. When combined with other operative and non-operative methods in a data-based approach, bracing may offer improved outcomes in therapeutic, palliative, and prophylactic applications for cartilage disease and injury.

Unripe apple polyphenols extract improves intestinal inflammation and restructures gut microbiota in spontaneously hypertensive rats

Natural polyphenolic extracts have been recognized to reduce the risk of hypertension. Coupled with evidence that gut dysbiosis is tightly linked to the development of hypertension, we hypothesized that modulating gut microbiota may be associated with the benefits of unripe apple polyphenols extract (UAPE). This study aimed to explore the effects of UAPE on hypertension and its complications, while elucidating the underlying mechanisms in spontaneously hypertensive rats (SHR). SHR received either vehicle (ddH2O), captopril (30 mg/kg body weight/day), or low-dose (10 mg/kg body weight/day), middle-dose (50 mg/kg body weight/day), or high-dose (250 mg/kg body weight/day) UAPE by oral gavage daily for 8 weeks. Concurrently, Wistar-Kyoto (WKY) rats received vehicle to serve as normotensive controls. We observed that UAPE offered protective effects against hypertension-induced blood pressure elevation (systolic blood pressure, diastolic blood pressure), glycolipid metabolic disorders (serum lipids, glucose), and renal damage (serum creatinine, renal histopathology) in SHR. Additionally, UAPE exerted gut health benefits via enhancing intestinal barrier integrity (colonic and ileal histopathology, colonic tight junction protein 1 and Occludin mRNA and protein) and mitigating intestinal inflammation (colonic TNFα and IL-6 mRNA) in SHR. Moreover, UAPE effectively alleviated the development of left ventricular hypertrophy (cardiac histopathology, echocardiography) and endothelial dysfunction (serum endothelial nitric oxide synthase, endothelin-1), both critical markers of hypertensive progression. Mechanistically, the anti-inflammatory effects of UAPE may be linked to the colonic inhibition of the HMGB1-TLR4-NF-κB signaling pathway (mRNA and protein for colonic HMGB1, TLR4, and P-P65) in SHR. Notably, UAPE elevated microbial richness and diversity, normalizing the Firmicutes/Bacteroidetes ratio. Besides, UAPE increased the beneficial bacteria linked to healthy states, including Intestinimonas_butyriciproducens, Lactobacillus_intestinalis, Ruminiclostridium, Oscillibacter_sp., and Bifidobacterium, reduced the harmful bacteria related to hypertension, upregulated health-promoting microbial function, and elevated the concentrations of gut microbiota-derived short chain fatty acids, including acetic acid and butyric acid, in SHR. Collectively, these observations support the antihypertensive effects of UAPE in the SHR model, highlighting the intimate link between UAPE, gut microbiota, and hypertension. Our findings provide novel insights into the UAPE-mediated improvements in hypertension and its complications, which may be intricately linked to the modulation of the microbiota-gut axis.

Investigating the impact of atrial fibrillation on the vascular onset of glaucoma via multiscale cardiovascular modeling

BACKGROUND AND OBJECTIVE

Atrial fibrillation (AF) is the most common tachyarrhythmia, exhibiting faster and irregular beating. Although there is growing evidence of the impact of AF on the cerebral hemodynamics, ocular hemodynamic alterations induced by AF are still poorly investigated to date. The objective of this study is to computationally inquire into the role of AF on the ocular hemodynamics as one of the possible vascular triggers of glaucoma, which is the leading cause of blindness due to the damage of the optic nerve.

METHODS

A validated 0D-1D multiscale cardiovascular model is exploited to compute the hemodynamic response of AF against sinus rhythm (SR), by simulating 2000 beats for each condition. To mimic AF rhythm, its main features are accounted for: (i) accelerated, variable and uncorrelated beating; (ii) absence of atrial kick; (iii) ventricular systolic dysfunction.

RESULTS

We focused on intraocular pressure (IOP), ocular perfusion pressure (OPP), and translaminar pressure (TLP). Apart from a modest OPP decrease, beat-averaged values of IOP and TLP barely vary in AF with respect to SR. Instead, during AF a significant reduction and dispersion of pulsatile values (i.e., maximum minus minimum values reached in a beat), as well as wave amplitude damping, is observed for IOP, OPP and TLP. The marked variability of pulsatile values, which are hardly measured due to clinical difficulties, can induce transient hypoperfusions and hypo-pulsatility events (for OPP) as well as hypertensive episodes (for TLP).

CONCLUSIONS

Awaiting necessary clinical data which are to date lacking, the present study can enrich - through hemodynamic-driven hints in the AF framework - the vascular theory, which associates reduced ocular perfusion (by means of decreased OPP and increased TLP) to an augmented risk of glaucoma. In this context, present modeling findings suggest a possible mechanistic link between AF-induced hemodynamic alterations and the increased risk of glaucoma development.

Joint analysis of diet quality, inflammatory potential of diet and ultra-processed food exposure in relation to chronic respiratory diseases and lung cancer mortality

OBJECTIVE

Examined the combined effects of ultra-processed food (UPF), Dietary Inflammatory Index (DII), Healthy Eating Index-2015 (HEI-2015), and Dietary Antioxidant Index (DAI) on mortality from chronic respiratory diseases (CRDs), chronic obstructive pulmonary disease (COPD), and lung cancer.

METHODS

A prospective analysis included 96,607 participants (53 % women). Diet intake was measured using food frequency questionnaire. Associations of dietary exposures with CRD, COPD, and lung cancer mortality were examined using Cox regression.

RESULTS

During 1,459,299 person-years of follow-up, there were 30,623 all-cause deaths, including 5218 from CRDs, 1613 from COPD, and 2127 from lung cancer. A 10 % increase in UPF intake (% grams/day) showed a non-linear association with higher CRD and COPD mortality but not lung cancer. Stronger curvature was observed between DII and mortality from all three conditions. However, HEI-2015 was inversely associated with CRD, COPD, and lung cancer mortality, while DAI showed an inverse relationship with CRD and COPD mortality but not lung cancer. Adjusting for DII attenuated UPF-related mortality risks by 39 % (CRD), 11 % (COPD), and 18 % (lung cancer), while HEI-2015 adjustment showed less attenuation. Additionally, the DII-mortality associations were less attenuated after adjusting for UPF intake but were offset after adjusting for HEI-2015. However, the HEI-2015-mortality associations remained unaffected when adjusted for UPF, DII, or DAI.

CONCLUSIONS

The findings highlight that the UPF-mortality relationship is potentially explained by DII and, to a lesser extent, by HEI-2015. Adhering to HEI-2015 guidelines can counterbalance the effects of DII on respiratory health but may not offset the effects associated with UPF.

Refined qingkailing attenuates reactive astrocytes and glial scar formation after ischemia stroke via the EGFR/PLCγ pathway

BACKGROUND

Ischemic stroke (IS) is the main cause of disability worldwide, and glial scar can impair neurological recovery during the post-stroke period. Refined qingkailing (RQKL) has been demonstrated to be neuroprotective after IS.

PURPOSE

The purpose of our study was to investigate the effect of RQKL on glial scar after IS.

METHODS

In this work, rats were used as the model subjects for middle cerebral artery occlusion (MCAO), with 7 and 14 days serving as the critical observational intervals. The treatments of oxygen and glucose deprivation/reoxygenation (OGD/R) were applied to primary astrocytes and an astrocyte-neuron co-culture model.

RESULTS

RQKL was effective in improving neurological dysfunction, brain histopathologic manifestations, and reducing the degree of brain atrophy at different stages of glial scar. It also decreased the expression of glial fibrillary acidic protein (GFAP), neurocan, and brevican, and increased the expression of microtubule associated protein 2 (MAP2). In primary astrocyte culture, RQKL reduced the activation and proliferation of astrocytes. In an astrocyte and neuron co-culture model, RQKL decreased the expression of GFAP and brevican in astrocytes, and increased the expression of MAP2 and NF200 in neurons. Epidermal growth factor receptor (EGFR) and p-PLCγ expression was strongly increased following IS, according to both in vivo and in vitro tests, while RQKL decreased EGFR and p-PLCγ expression.

CONCLUSION

When considered collectively, these findings imply that the EGFR/PLCγ signaling pathway is crucial for the activation of astrocytes and the formation of glial scars following IS. Also, RQKL affects neurons by blocking the EGFR/PLCγ signaling pathway on astrocytes, which diminishes the activation of astrocytes and the development of glial scars.

Effects of Supplementation With Different Specificities of Dietary Fiber on Health-Related Indicators in Adults With Overweight or Obesity: A Systematic Review and Meta-analysis of Randomized Controlled Trials

CONTEXT

Dietary fiber (DF) exhibits variations in its chemical and physical complexity, as well as in its utilization by the gut microbiota. However, the impact of these differences on the health status of adults with overweight or obesity remains unclear.

OBJECTIVE

This meta-analysis aimed to explore the varying effects of supplementing with different specificities of DF on the health of adults with overweight or obesity, providing guidance on selecting DF supplementation to improve health status.

DATA SOURCES

The literature search encompassed 4 electronic databases-PubMed, Cochrane Library, Web of Science, and EMBASE-and was conducted between January 1, 2012, and November 10, 2023. Randomized controlled trials comparing DF with placebo treatment, without energy restriction, were included.

DATA EXTRACTION

Two independent reviewers extracted data using a standardized form, resolving discrepancies through discussion. The data included study characteristics, participant demographics, DF specifications, and outcome measures.

DATA ANALYSIS

Random-effects models and the generic inverse variance method were used to analyze data, assuming varying outcomes based on DF specificity. Meta-regression assessed the impact of population, duration, and dosage. Publication bias was evaluated using funnel plots and Egger's and Begg's tests. The analysis included 34 trials (n = 1804) examining DF supplementation at 1.5 to 40 g/day for 3 to 16 weeks. DF supplementation significantly reduced glycated hemoglobin (HbA1c) by 0.13%, fasting insulin by 0.82 μIU/mL, and homeostatic model assessment of insulin resistance (HOMA-IR) by 0.33 in adults with overweight or obesity. Subgroup analyses based on DF specificity revealed differences in effects on HbA1c, fasting insulin, and systolic blood pressure. The low-specificity subgroup showed significant heterogeneity in body weight, body mass index, HbA1c, fasting insulin, and HOMA-IR, with a decrease in fasting insulin by 1.09 μIU/mL. The low-to-intermediate-specificity subgroup had reductions in HbA1c by 0.8%, fasting insulin by 2.08 μIU/mL, and HOMA-IR by 0.61. The intermediate-specificity subgroup experienced a 2.85-kg decrease in body weight and a 9.03-mg/dL increase in LDL cholesterol. The mixed subgroup showed an increase in systolic blood pressure by 3.85 mmHg.

CONCLUSION

Supplementing with different specificities of DF may have distinct effects on health-related indicators in adults with overweight or obesity. Considering individuals' gut microbiota composition and specific health goals is recommended when selecting DF supplementation for adults with overweight or obesity.

SYSTEMATIC REVIEW REGISTRATION

PROSPERO registration no. CRD42023432920.

Experimental evidence on colchicine's mode of action in human carotid artery plaques

BACKGROUND AND AIMS

Atherosclerosis, driven by inflammation, is a leading cause of cardiovascular events. Recent clinical trials have highlighted the therapeutic potential of anti-inflammatory treatments. Consequently, colchicine is being recommended for secondary prevention in current guidelines, although the drug's mechanistic actions are not fully understood.

METHODS

To this end, we conducted a multiomic investigation of colchicine's effect on human carotid plaques. Sections from endarterectomy specimens were exposed to colchicine at concentrations of 2 ng/ml and 10 ng/ml ex vivo for 24 h and compared to untreated segments of the same plaque. Gene expression changes were analyzed by bulk RNA sequencing, and plaque secretomes underwent mass spectrometry for proteomic analysis. In situ cell proliferation was assessed by histology.

RESULTS

Our data indicate, that colchicine suppresses neutrophil and platelet degranulation and activation, collagen degradation and atheromatous plaque macrophage proliferation in a dose-dependent manner in human plaques, while stimulating myofibroblast activation. Unexpectedly, interleukine (IL)-1beta release from colchicine treated plaques was not reduced. These results indicate that the inflammasome may not be the predominant target of low-dose colchicine in human carotid artery plaques.

CONCLUSION

Our study identifies multifactorial pathways through which colchicine, the first cardiovascular guideline-recommended anti-inflammatory drug, predominantly acts on human atherosclerotic lesions beyond the inflammasome. Targeting neutrophil and platelet degranulation, collagen degradation and macrophage proliferation, selectively, may provide substantial therapeutic benefit in atherosclerotic cardiovascular disease without colchicine's undesired side effects.

Worsening heart failure: progress, pitfalls, and perspectives

For most patients with chronic heart failure (HF), the clinical course of the disease includes periods of apparent clinical stability punctuated by episodes of clinical deterioration with worsening signs and symptoms, a condition referred to as worsening heart failure (WHF). Over time, episodes of WHF may become more frequent, and patients may enter a cycle of recurrent events associated with deterioration in their quality of life and functional capacity, hospitalizations, and ultimately death. WHF is apparently an old concept but seems to have acquired new boundaries in terms of definition and clinical and prognostic value due to the fast-paced evolution of the HF treatment landscape and the emergence of new drugs in this setting. As a result, the management of WHF is being reshaped. In the present paper, a group of HF experts gathered to discuss the concept, prevention, detection, and treatment of WHF.