Topical administration of GLP-1 eyedrops improves retinal ganglion cell function by facilitating presynaptic GABA release in early experimental diabetes

JOURNAL/nrgr/04.03/01300535-202602000-00048/figure1/v/2025-05-05T160104Z/r/image-tiff Diabetic retinopathy is a prominent cause of blindness in adults, with early retinal ganglion cell loss contributing to visual dysfunction or blindness. In the brain, defects in γ-aminobutyric acid synaptic transmission are associated with pathophysiological and neurodegenerative disorders, whereas glucagon-like peptide-1 has demonstrated neuroprotective effects. However, it is not yet clear whether diabetes causes alterations in inhibitory input to retinal ganglion cells and whether and how glucagon-like peptide-1 protects against neurodegeneration in the diabetic retina through regulating inhibitory synaptic transmission to retinal ganglion cells. In the present study, we used the patch-clamp technique to record γ-aminobutyric acid subtype A receptor-mediated miniature inhibitory postsynaptic currents in retinal ganglion cells from streptozotocin-induced diabetes model rats. We found that early diabetes (4 weeks of hyperglycemia) decreased the frequency of GABAergic miniature inhibitory postsynaptic currents in retinal ganglion cells without altering their amplitude, suggesting a reduction in the spontaneous release of γ-aminobutyric acid to retinal ganglion cells. Topical administration of glucagon-like peptide-1 eyedrops over a period of 2 weeks effectively countered the hyperglycemia-induced downregulation of GABAergic mIPSC frequency, subsequently enhancing the survival of retinal ganglion cells. Concurrently, the protective effects of glucagon-like peptide-1 on retinal ganglion cells in diabetic rats were eliminated by topical administration of exendin-9-39, a specific glucagon-like peptide-1 receptor antagonist, or SR95531, a specific antagonist of the γ-aminobutyric acid subtype A receptor. Furthermore, extracellular perfusion of glucagon-like peptide-1 was found to elevate the frequencies of GABAergic miniature inhibitory postsynaptic currents in both ON- and OFF-type retinal ganglion cells. This elevation was shown to be mediated by activation of the phosphatidylinositol-phospholipase C/inositol 1,4,5-trisphosphate receptor/Ca 2+ /protein kinase C signaling pathway downstream of glucagon-like peptide-1 receptor activation. Moreover, multielectrode array recordings revealed that glucagon-like peptide-1 functionally augmented the photoresponses of ON-type retinal ganglion cells. Optomotor response tests demonstrated that diabetic rats exhibited reductions in visual acuity and contrast sensitivity that were significantly ameliorated by topical administration of glucagon-like peptide-1. These results suggest that glucagon-like peptide-1 facilitates the release of γ-aminobutyric acid onto retinal ganglion cells through the activation of glucagon-like peptide-1 receptor, leading to the de-excitation of retinal ganglion cell circuits and the inhibition of excitotoxic processes associated with diabetic retinopathy. Collectively, our findings indicate that the γ-aminobutyric acid system has potential as a therapeutic target for mitigating early-stage diabetic retinopathy. Furthermore, the topical administration of glucagon-like peptide-1 eyedrops represents a non-invasive and effective treatment approach for managing early-stage diabetic retinopathy.

Respiratory syncytial virus vaccination in older adults and patients with chronic disorders: A position paper from the Portuguese Society of Pulmonology, the Portuguese Association of General and Family Medicine, the Portuguese Society of Cardiology, the Portuguese Society of Infectious Diseases and Clinical Microbiology, the Portuguese Society of Endocrinology, Diabetes and Metabolism, and the Portuguese Society of Internal Medicine

BACKGROUND

Respiratory syncytial virus (RSV) is an important cause of lower respiratory tract infection, hospitalisation and death in adults.

METHODS

Based on evidence regarding the impact of RSV on adult populations at risk for severe infection and the efficacy and safety of RSV vaccines, the Portuguese Society of Pulmonology, the Portuguese Association of General and Family Medicine, the Portuguese Society of Cardiology, the Portuguese Society of Infectious Diseases and Clinical Microbiology, the Portuguese Society of Endocrinology, Diabetes and Metabolism, and the Portuguese Society of Internal Medicine endorses this position paper with recommendations to prevent RSV-associated disease and its complications in adults through vaccination.

CONCLUSION

The RSV vaccine is recommended for people aged ≥50 years with risk factors (chronic obstructive pulmonary disease, asthma, heart failure, coronary artery disease, diabetes, chronic kidney disease, chronic liver disease, immunocompromise, frailty, dementia, and residence in a nursing home) and all persons aged ≥60 years. If it cannot be made available to this population, then the vaccine should be prioritised for individuals aged ≥75 years and those aged ≥50 years with risk factors. The vaccine should preferably be given between September and November and can be co-administered with the influenza vaccine. Ongoing studies on RSV vaccines may justify extending these recommendations in the future.

Prevalence of asthma in Portuguese adults - the EPI-ASTHMA study, a nationwide population-based survey

INTRODUCTION

In 2010, 6.8% of the Portuguese adults had asthma. Contemporary studies employing more accurate methods are needed. We aimed to assess asthma prevalence in Portugal and to identify associated-factors.

METHODS

A population-based nationwide study was conducted from May 2021 to March 2024. A multistage random sampling approach was applied to select adults from primary care. Stage 1 involved a telephone screening interview to collect socio-demographic and clinical data. Patients with an Adult Asthma Score (A2 Score) ≥1 were eligible for Stage 2, and 5% of those with an A2 Score = 0 were also invited to participate in Stage 2, which consisted of a diagnostic visit with a physical examination and diagnostic tests. We computed weighted asthma prevalence estimates and multivariable logistic regression models were used.

RESULTS

A total of 7,556 participants completed Stage 1 and 1,857 Stage 2. The prevalence of asthma was 7.1% (95%CI = 6.3-8.0%), with slight differences by sex, age, and region. Education, family history of asthma, inhaler prescription, nasal/ocular symptoms, food allergies, and previous allergy skin tests were associated with an increased risk of asthma (R2 = 33%). Asthma diagnosis could also be predicted by the A2 score, either on its own (R2 = 43%) or in combination with family history and previous allergy skin tests (R2 = 45%).

DISCUSSION

Asthma affects 7.1% of Portuguese adults. Family history of asthma, nasal/ocular symptoms, and comorbid food allergy are associated with increased risk of asthma.

Issue 3-The occupational burden of respiratory diseases, an update

INTRODUCTION AND AIMS

Workplace exposures are widely known to cause specific occupational diseases such as silicosis and asbestosis, but they also can contribute substantially to causation of common respiratory diseases. In 2019, the American Thoracic Society (ATS) and the European Respiratory Society (ERS) published a joint statement on the occupational burden of respiratory diseases. Our aim on this narrative review is to summarise the most recent evidence published after the ATS/ERS statement as well as to provide information on traditional occupational lung diseases that can be useful for clinicians and researchers.

RESULTS

Newer publications confirm the findings of the ATS/ERS statement on the role of workplace exposure in contributing to the aetiology of the respiratory diseases considered in this review (asthma, COPD, chronic bronchitis, idiopathic pulmonary fibrosis, hypersensitivity pneumonitis, infectious pneumonia). Except for COPD, chronic bronchitis and infectious pneumonia, the number of publications in the last 5 years for the other diseases is limited. For traditional occupational lung diseases such as silicosis and asbestosis, there are old as well as novel sources of exposure and their burden continues to be relevant, especially in developing countries.

CONCLUSIONS

Occupational exposure remains an important risk factor for airways and interstitial lung diseases, causing occupational lung diseases and contributing substantially in the aetiology of common respiratory diseases. This information is critical for public health professionals formulating effective preventive strategies but also for clinicians in patient care. Effective action requires shared knowledge among clinicians, researchers, public health professionals, and policy makers.

Global, regional, and national progress towards the 2030 global nutrition targets and forecasts to 2050: a systematic analysis for the Global Burden of Disease Study 2021

BACKGROUND

The six global nutrition targets (GNTs) related to low birthweight, exclusive breastfeeding, child growth (ie, wasting, stunting, and overweight), and anaemia among females of reproductive age were chosen by the World Health Assembly in 2012 as key indicators of maternal and child health, but there has yet to be a comprehensive report on progress for the period 2012 to 2021. We aimed to evaluate levels, trends, and observed-to-expected progress in prevalence and attributable burden from 2012 to 2021, with prevalence projections to 2050, in 204 countries and territories.

METHODS

The prevalence and attributable burden of each target indicator were estimated by age group, sex, and year in 204 countries and territories from 2012 to 2021 in the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021, the most comprehensive assessment of causes of death, disability, and risk factors to date. Country-specific relative performance to date was evaluated with a Bayesian meta-regression model that compares prevalence to expected values based on Socio-demographic Index (SDI), a composite indicator of societal development status. Target progress was forecasted from 2021 up to 2050 by modelling past trends with meta-regression using a combination of key quantities and then extrapolating future projections of those quantities.

FINDINGS

In 2021, a few countries had already met some of the GNTs: five for exclusive breastfeeding, four for stunting, 96 for child wasting, and three for child overweight, and none met the target for low birthweight or anaemia in females of reproductive age. Since 2012, the annualised rates of change (ARC) in the prevalence of child overweight increased in 201 countries and territories and ARC in the prevalence of anaemia in females of reproductive age decreased considerably in 26 countries. Between 2012 and 2021, SDI was strongly associated with indicator prevalence, apart from exclusive breastfeeding (|r-|=0·46-0·86). Many countries in sub-Saharan Africa had a decrease in the prevalence of multiple indicators that was more rapid than expected on the basis of SDI (the differences between observed and expected ARCs for child stunting and wasting were -0·5% and -1·3%, respectively). The ARC in the attributable burden of low birthweight, child stunting, and child wasting decreased faster than the ARC of the prevalence for each in most low-income and middle-income countries. In 2030, we project that 94 countries will meet one of the six targets, 21 countries will meet two targets, and 89 countries will not meet any targets. We project that seven countries will meet the target for exclusive breastfeeding, 28 for child stunting, and 101 for child wasting, and no countries will meet the targets for low birthweight, child overweight, and anaemia. In 2050, we project that seven additional countries will meet the target for exclusive breastfeeding, five for low birthweight, 96 for child stunting, nine for child wasting, and one for child overweight, and no countries are projected to meet the anaemia target.

INTERPRETATION

Based on current levels and past trends, few GNTs will be met by 2030. Major reductions in attributable burden for exclusive breastfeeding and anthropometric indicators should be recognised as huge scientific and policy successes, but the comparative lack of progress in reducing the prevalence of each, along with stagnant anaemia in women of reproductive age and widespread increases in child overweight, suggests a tenuous status quo. Continued investment in preventive and treatment efforts for acute childhood illness is crucial to prevent backsliding. Parallel development of effective treatments, along with commitment to multisectoral, long-term policies to address the determinants and causes of suboptimal nutrition, are sorely needed to gain ground.

FUNDING

Bill & Melinda Gates Foundation.

TGF-β: elusive target in diabetic kidney disease

Transforming growth factor-beta (TGF-β), a cytokine with near omnipresence, is an integral part of many vital cellular processes across the human body. The family includes three isoforms: Transforming growth factor-beta 1, 2, and 3. These cytokines play a significant role in the fibrosis cascade. Diabetic kidney disease (DKD), a major complication of diabetes, is increasing in prevalence daily, and the classical diagnosis of diabetes is based on the presence of albuminuria. The occurrence of nonalbuminuric DKD has provided new insight into the pathogenesis of this disease. The emphasis on multifactorial pathways involved in developing DKD has highlighted some markers associated with tissue fibrosis. In diabetic nephropathy, TGF-β is significantly involved in its pathology. Its presence in serum and urine means that it could be a diagnostic tool while its regulation provides potential therapeutic targets. Completely blocking TGF-β signaling could reach untargeted regions and cause unanticipated effects. This paper reviews the basic details of TGF-β as a cytokine, its role in DKD, and updates on research carried out to validate its candidacy.

CEACAM5 exacerbates asthma by inducing ferroptosis and autophagy in airway epithelial cells through the JAK/STAT6-dependent pathway

OBJECTIVES

Asthma, a prevalent chronic disease, poses significant health threats and burdens healthcare systems. This study focused on the role of bronchial epithelial cells in asthma pathophysiology.

METHODS

Bioinformatics was used to identify key asthmarelated genes. An ovalbumin-sensitized mouse model and an IL-13-stimulated Beas-2B cell model were established for further investigation.

RESULTS

Carcinoembryonic antigen-related cell adhesion molecule 5 (CEACAM5) was identified as a crucial gene in asthma. CEACAM5 expression was elevated in asthmatic mouse lung tissues and IL-13-stimulated Beas-2B cells, primarily in bronchial epithelial cells. CEACAM5 induced reactive oxygen species (ROS), lipid peroxidation, and ferroptosis. Interfering with CEACAM5 reduced ROS, malondialdehyde levels, and enhanced antioxidant capacity, while inhibiting iron accumulation and autophagy. Overexpression of CEACAM5 in IL-13-stimulated cells activated the JAK/STAT6 pathway, which was necessary for CEACAM5-induced autophagy, ROS accumulation, lipid peroxidation, and ferroptosis.

CONCLUSION

CEACAM5 promotes ferroptosis and autophagy in airway epithelial cells via the JAK/STAT6 pathway, exacerbating asthma symptoms. It represents a potential target for clinical treatment.

Association between methylmalonic acid and prevalence of depression in US adults: evidence from NHANES 2011-2014

Background: Depression is a prevalent mental disorder with high morbidity and mortality globally. Methylmalonic acid (MMA) is involved in the pathogenesis of numerous diseases. However, it is unclear whether there is an association between MMA and the prevalence of depression.Methods: This study enrolled 7866 US adults from the 2011-2014 survey of the National Health and Nutrition Examination Survey (NHANES). Individuals were categorized into depression group and non-depression group based on Patient's Health Questionnaire-9 (PHQ-9) score. The association between MMA concentrations and prevalence of depression was analysed by multivariate logistic and linear regression, restricted cubic spline regression, and subgroup analysis. Mediation analysis was used to explore the role of inflammation in the relationship between MMA and depression.Results: MMA concentrations were higher in participants with depression than those without depression. There was a positive and linear relationship of MMA concentrations with PHQ-9 score and depression risk, respectively. Moreover, the association was stable in most subgroups. Furthermore, inflammatory factors were positively correlated to MMA concentrations and prevalence of depression. In addition, white blood cell, neutrophil and alkaline phosphatase (ALP) mediated the relationship between MMA and depression.Conclusion: Our findings revealed that there was a linear and positive correlation between MMA and the prevalence of depression in US adults, which might be mediated by inflammation.

Effectiveness of infrastructural interventions to improve access to safe drinking water in Latin America and the Caribbean on the burden of diarrhoea in children <5 years: a systematic literature review and narrative synthesis

Globally, Latin America and the Caribbean (LAC) has one of the lowest rates of equitable access to safely managed drinking water. This systematic literature review assessed the effectiveness of infrastructure interventions to provide equitable access to safely managed drinking water in LAC on the burden of diarrhoea in children <5 years. The review was conducted in February 2024 using Ovid MEDLINE, Embase, Global Health, and the Cochrane Library with inclusion criteria: quantitative study designs of intervention effectiveness on burden of diarrhoea in children; conducted in LAC; studies published since 1 January 2000; and full-text available in English. Study quality was assessed via the US Agency for Healthcare Research and Quality scale. Reported quantitative data for diarrhoea burden of disease were extracted, and thematic analysis informed a narrative synthesis. Six studies from three countries in LAC with >110,000 data-points were included. Water supply infrastructure interventions were effective at reducing the burden of diarrhoea in children <5 years. Household level, rather than community level, access to a piped water supply, a continuous reliable service with <1 day of service interruption per month, and cash transfer programs for environmental public health programs, were identified as key contributors to water infrastructure intervention effectiveness. Previous water supply infrastructure interventions which include the provision of a safe drinking water supply are effective in reducing burden of diarrhoea in children. Future studies are needed to develop a comprehensive understanding of the unique features which contribute to water infrastructure effectiveness.

SARS-CoV-2 epidemiology, kinetics, and evolution: A narrative review

Since winter 2019, SARS-CoV-2 has emerged, spread, and evolved all around the globe. We explore 4 y of evolutionary epidemiology of this virus, ranging from the applied public health challenges to the more conceptual evolutionary biology perspectives. Through this review, we first present the spread and lethality of the infections it causes, starting from its emergence in Wuhan (China) from the initial epidemics all around the world, compare the virus to other betacoronaviruses, focus on its airborne transmission, compare containment strategies ("zero-COVID" vs. "herd immunity"), explain its phylogeographical tracking, underline the importance of natural selection on the epidemics, mention its within-host population dynamics. Finally, we discuss how the pandemic has transformed (or should transform) the surveillance and prevention of viral respiratory infections and identify perspectives for the research on epidemiology of COVID-19.

Finite element models of intervertebral disc: recent advances and prospects

OBJECTIVES

The incidence rate of intervertebral disc degeneration (IVDD) is increasing year by year, which brings great harm to our health. The change of biomechanical factors is an important reason for IVDD. Therefore, more and more studies use finite element (FE) models to analyze the biomechanics of spine.

METHODS

In this review, literatures which reported the FE model of intervertebral disc (IVD) were reviewed. We summarized the types and constructional methods of the FE models and analyzed the applications of some representative FE models.

RESULTS

The most widely used model was the nonlinear model which considers the behavior of porous elastic materials. As more advanced methods, More and more models which involve penetration parameters were used to simulate the biological behavior and biomechanical properties of IVD.

CONCLUSIONS

Personalized modeling should be carried out in order to better provide accurate basis for the diagnosis and treatment of the disease. In addition, microstructure, cell behavior and complex load should be considered in the process of model construction to build a more realistic model.

The real-world impact of cariprazine on short- and long-term disability outcomes among commercially insured patients in the United States

AIM

To compare all-cause and mental health (MH)-related short-term and long-term disability leaves and associated costs among patients in the United States with bipolar disorder (BP), major depressive disorder (MDD), or schizophrenia spectrum disorders (SCZ) before versus after cariprazine initiation.

METHODS

Merative MarketScan Commercial and Health and Productivity Management (HPM) databases (January 2016 to December 2021) were utilized to identify adults diagnosed with BP, MDD, or SCZ with ≥2 pharmacy cariprazine claims (first claim = index), ≥3 months of cariprazine use (adjunctively for MDD), and continuous commercial insurance coverage and HPM eligibility during baseline (12 months pre-index) and ≥3 months post-index. Observation continued until cariprazine discontinuation, insurance or HPM eligibility end, 1 year post-index, or HPM data availability end. All-cause and MH-related disability claims, days, and costs were evaluated. Baseline versus post-index rates of disability claims (events) and days were compared using rate ratios (RR); costs were compared using mean cost differences. Comparisons were calculated from generalized estimating equation models. Analyses were replicated separately across indications.

RESULTS

There were 489 patients overall (BP = 238, MDD = 233, SCZ = 18; mean age = 43.3 years; 60.7% female; mean follow-up = 7.6 months). All-cause rates of disability events and days following cariprazine initiation were 29% (RR = 0.71 [95% CI = 0.57, 0.86]) and 28% (0.72 [0.53, 0.94]) lower than baseline, respectively (both p < .05). MH-related rates of disability events and days were 40% (0.60 [0.43, 0.80]) and 43% (0.57 [0.34, 0.84]) lower, respectively (both p < .01). All-cause disability costs were $2,917 lower and MH-related disability costs were $2,482 lower than baseline (40% and 51% decrease, respectively; both p < .01). Results were similar for indication-specific analyses.

LIMITATIONS

Limited generalizability to patients who are unemployed, uninsured, or have public insurance.

CONCLUSIONS

Rates of disability events, days, and mean costs were significantly lower after versus before cariprazine initiation. These results can help contextualize cariprazine's role in managing disability for these patients.

Social determinants of hazardous alcohol use in a Ugandan population cohort

BACKGROUND

There is a limited population-based data on hazardous alcohol use and associated social determinants in many African countries.

OBJECTIVES

To examine patterns of hazardous alcohol use across a range of social determinants of health in Uganda, with a particular focus on gender differences.

METHODS

This cross-sectional study used data collected in 2021-2022 from an open population cohort spanning urban, semi-urban, and rural communities. Alcohol use was assessed with the Alcohol Use Disorders Identification Test-Consumption (AUDIT-C). Covariates were selected according to the WHO's Social Determinants of Health framework. Poisson regression with robust variance was used for data analysis.

RESULTS

Of the 3459 participants, 2085 (60%) were women. Overall, the prevalence of hazardous alcohol use was 5% among women and 18% among men. Strong positive associations with hazardous use were found for individuals residing in semi-urban areas (female aPR 2.1 [95% CI 1.3-3.3], male aPR 1.8 [95% CI 1.4-2.5]), past-year perpetration of intimate partner violence (female aPR 2.2 [95% CI 0.8-5.6], male aPR 1.4 [95% CI 0.9-2.2]), smoking, middle age for men (aPR 1.6 [95% CI 1.2-2.2]), and employment as a vendor in a restaurant or bar for women (aPR 1.5 [95% CI 1.0-2.2]). Strong negative associations were found for high educational attainment, Muslim or Pentecostal religion, and living in a marriage or union for women (aPR 0.7 [95% CI 0.5-1.0]).

CONCLUSIONS

Hazardous alcohol use was prevalent, especially among men, in a representative Ugandan population sample. Specific target groups for public health and clinical interventions were identified, such as women working in the hospitality sector. Residents of semi-urban communities may encounter unique risks for hazardous alcohol use, compared with rural and highly urban populations.

Subnational trend and driving factors for pancreatic cancer burden in China, 1990-2021: an analysis based on the Global Burden of Disease Study 2021

BACKGROUND

The mortality of pancreatic cancer in China showed an increasing trend between 2005 and 2020, with significant discrepancies in the burden of pancreatic cancer in provinces.

METHODS

We analyzed numbers of death, incidence, disability-adjusted life years (DALY) and corresponding age-standardized rates for pancreatic cancer in China using data from the Global Burden of Disease Study 2021. We conducted trend analysis in pancreatic cancer burden over time by age group and gender. Decomposition analysis was used to assess the drivers of change in cancer-related deaths in China due to three explanatory factors: population growth, population ageing and age-specific mortality.

RESULTS

In 2021, the ASMR of pancreatic cancer in China was 5.72/100,000(95%UI: 4.59, 6.91), the age-standardized incidence (ASIR) rate was 5.64/100,000(95%UI: 4.52, 6.84) and the age-standardized DALY rate was 137.23/100,000 (95%UI:108.15, 166.74). From 1990 to 2021, the ASMR of pancreatic cancer in China generally showed an increasing trend (AAPC: 0.56, 95%UI: 0.52, 0.59). The burden of pancreatic cancer was consistently higher in Chinese men compared to women during the study period.Compared with 1990, the number of deaths from pancreatic cancer has increased in all provinces of China in 2021, with the overall number of deaths increasing by 67.49%. Population ageing was the major cause of the increase in deaths from pancreatic cancer in China, accounting for 45.89%.

CONCLUSIONS

The burden of pancreatic cancer in China is still at a high level and population ageing is the main reason for the increase in pancreatic cancer deaths.

Triggers of treatment interruption and resumption among individuals with type 2 diabetes: a narrative cross-sectional qualitative study

PURPOSE

Treatment interruption and resumption are common among people with type 2 diabetes mellitus (T2D), but the triggers of resumption, according to the reasons for interruption, remain underexplored. This study examined patterns of treatment interruption and resumption.

METHODS

Narratives from 13 T2D patients with a history of treatment interruption were analysed through semi-structured interviews.

RESULTS

Four patterns were identified: 1) "Economic rationality", where financial barriers caused interruptions, but resumption was facilitated by low-cost check-ups and updated patient mindsets to manage medical expenses within the constraints of a limited household budget; 2) "Proactive information seeking", where doubts about treatment effectiveness led to interruptions, followed by resumption through active health risk reassessment by the patient's self-directed efforts; 3) "Health professional-patient relationship", where conflicts with healthcare providers prompted interruptions, but trustful encounters encouraged resumption; and 4) "Sustained partnerships with community health professionals", where personal challenges caused interruptions, but non-coercive partnerships with community health professionals fostered resumption through strengthened patient commitment.

CONCLUSION

This study highlights the need for tailored medical support and local policy development for T2D patients, emphasizing subjective interpretations of their experiences on treatment interruption and resumption. Recognizing these patterns can guide resource allocation and the design of community-based diabetes care interventions.

Burden of female infertility in 204 countries and territories, 1990-2021: results from the Global Burden of Disease Study 2021

OBJECTIVE

To explore the global burden of female infertility from 1990 to 2021 by examining trends in prevalence and years lived with disability (YLD).

METHODS

Data from the Global Burden of Disease Study 2021 (GBD 2021) were analyzed with a focus on the prevalence and YLD of female infertility in women aged 15-49 years. Statistical models were used to estimate ASPRs and YLD across regions and countries.

RESULTS

The global prevalence of female infertility was 110.1 million in 2021, with an age-standardized rate of 2,764.6 per 100,000 population. The YLD for infertility in 2021 was 601,134, which represented a 33.1% increase since 1990. Regionally, East Asia and Eastern Europe had the highest rates of infertility, whereas Australasia had the lowest rate.

CONCLUSIONS

The study highlights a significant rise in the burden of female infertility, particularly in high-income regions. Study findings emphasize the need for targeted public health strategies and healthcare interventions to address this growing issue.

Global burden and trends of the Clostridioides difficile infection-associated diseases from 1990 to 2021: an observational trend study

BACKGROUND

This study was aimed to explore the global burden and trends of Clostridioides difficile infections (CDI) associated diseases.

METHODS

Data for this study were obtained from the Global Burden of Disease Study 2021. The burden of CDI was assessed using the age-standardized rates of disability-adjusted life years (ASR-DALYs) and deaths (ASDRs). Trends in the burden of CDI were presented using average annual percentage changes (AAPCs).

RESULTS

The ASR-DALYs for CDI increased from 1.83 (95% UI: 1.53-2.18) per 100,000 in 1990 to 3.46 (95% UI: 3.04-3.96) per 100,000 in 2021, with an AAPC of 2.03% (95% CI: 1.67-2.4%). The ASDRs for CDI rose from 0.10 (95% UI: 0.08-0.11) per 100,000 in 1990 to 0.19 (95% UI: 0.16-0.23) per 100,000 in 2021, with an AAPC of 2.26% (95% CI: 1.74-2.79%). In 2021, higher burdens of ASR-DALYs (10.7 per 100,000) and ASDRs (0.53 per 100,000) were observed in high socio-demographic index (SDI) areas, and among age group over 70 years (31.62/100,000 for ASR-DALYs and 2.45/100,000 for ASDRs). During the COVID-19 pandemic, the global ASR-DALYs and ASDRs slightly decreased. However, in regions with low SDI, low-middle and middle SDI, those rates slightly increased.

CONCLUSION

The global burden of CDI has significantly increased, particularly in regions with high SDI and among individuals aged 70 years and above. During the COVID-19 pandemic period from 2020 to 2021, the burden of CDI further increased in regions with low, low-middle, and middle SDI. These findings underscore the need for increased attention and intervention, especially in specific countries and populations.

Educating women to prevent and treat low back and pelvic girdle pain during and after pregnancy: a systematized narrative review

PURPOSE

This review evaluated the effectiveness of patient education and information on low back pain (LBP) and pelvic girdle pain (PGP) in pregnant and postpartum women and evaluated their alignment with modern pain education principles rooted in the biopsychosocial model.

METHOD

A systematized narrative review was performed, including a systematic search of three databases and reference screening from relevant systematic reviews. The methodological quality of the included randomized controlled trials (RCT) was evaluated using the PEDro scale.

RESULTS

Eighteen studies, including nine RCTs with PEDro scores ranging from to 2-8, indicated that patient education during pregnancy can help reduce pain and related disability. Most studies did not differentiate between LBP and PGP, which limits the specificity and targeted approach of educational interventions. Education alone is less effective without accompanying active treatment. Current programs primarily emphasize biomechanics, covering anatomy and physical changes, but often neglect lifestyle factors, such as stress and sleep.

CONCLUSION

Although patient education is important for managing pregnancy-related LBP and PGP, its effectiveness may be improved by tailoring programs to specific pain conditions and integrating a biopsychosocial perspective on pain.

Causal impact of elevated body mass index on diabetic kidney disease: an integrated Mendelian randomization and Global Burden of Disease Study 2021 analysis

BACKGROUND

Elevated body mass index (BMI) has been implicated in the pathogenesis of diabetic kidney disease among patients with type 2 diabetes mellitus (T2DKD). However, establishing a causal relationship and quantifying the resultant global health impact remain challenging.

METHODS

A two-sample Mendelian randomization (MR) analysis was conducted using summary-level data obtained from the IEU database. Multiple MR approaches, including inverse variance weighted (IVW), MR-Egger regression, weighted median, weighted mode, and simple mode methods, were implemented to ensure robust causal inference. In parallel, Global Burden of Disease Study (GBD) 2021 were analyzed to determine the trends in mortality and disability-adjusted life years (DALYs) in T2DKD attributable to high BMI (HBMI-T2DKD) from 1990 to 2021. Joinpoint regression was used to estimate the average annual percent change (AAPC). Bayesian age-period-cohort (BAPC) models were then applied to project the disease burden through 2049.

RESULTS

MR analyses provided strong evidence for a causal relationship between elevated BMI and T2DKD. The GBD analysis revealed a sustained global increase in HBMI-T2DKD burden over the past three decades. Between 1990 and 2021, the result of AAPC indicated a persistent upward trend. The burden was particularly high among older adults, with the highest impact observed in East Asia and middle Socio-Demographic Index (SDI) region. By 2049, HBMI-T2DKD-related disease burden were projected to continue rising.

CONCLUSIONS

Elevated BMI is a significant causal risk factor for T2DKD. The integration of MR and GBD 2021 data underscores the urgent need for targeted public health interventions to reduce BMI levels, especially in high-risk regions and aging populations.

Efficacy and safety of intensive blood pressure control in patients over 60 years: A systematic review and meta-analysis

OBJECTIVES

To evaluate the efficacy and safety of intensive blood pressure control in patients over 60 years.

METHODS

Databases including PubMed, Embase and Cochrane library were searched from inception through February 1, 2024. Randomized controlled trials evaluating the efficacy or safety of intensive blood pressure control in patients over 60 years were included in the meta-analysis.

RESULTS

Intensive blood pressure control in individuals with mild hypertension has been shown to reduce the risk of heart failure, stroke, myocardial infarction, major cardiovascular events, cardiovascular mortality, and all-cause mortality. The benefits of intensive blood pressure control in patients with moderate to severe hypertension are comparable to those observed in individuals with mild hypertension, with the exception of a reduced impact on all-cause mortality and cardiovascular mortality. Compared with maintaining systolic blood pressure (SBP) above 140 mmHg, SBP below 140 mmHg is associated with a decreased risk of major cardiovascular events in patients aged over 70, as well as a reduced risk of stroke in patients aged 60-69. Furthermore, compared to maintaining SBP above 130 mmHg, SBP below 130 mmHg is linked to a lower risk of major cardiovascular events, heart failure and myocardial infarction in patients over 60, a reduced risk of stroke and cardiovascular mortality in patients aged 60-69, and a decreased risk of all-cause mortality in patients over 70. However, a lower baseline blood pressure or more aggressive blood pressure control may be associated with an increased risk of hypotension.

CONCLUSIONS

Patients with hypertension aged over 60 years can derive benefits from intensive blood pressure management without experiencing significant adverse events, aside from hypotension.

The burden of diseases attributable to high body mass index in Asia from 1990 - 2019: results from the global burden of disease study 2019

AIM

Our study aimed to report the burden of diseases attributable to high body mass index (BMI) in Asia from 1990 to 2019.

METHODS

Utilizing data from the Global Burden of Disease (GBD) Study 2019, we calculated disability-adjusted life years (DALYs) and deaths, with trends quantified by the estimated annual percentage change (EAPC). We also made projections for selected countries and estimated the relationship between the Sociodemographic Index (SDI) and high BMI-related disease burden.

RESULT

From 1990 to 2019, high BMI-related diseases observed significant increases in the absolute number of deaths and DALYs, with EAPCs of 4.62 and 4.69, respectively, while the age-standardized rates of both deaths and DALYs also showed upward trends, with EAPCs of 1.39 and 1.80. Cardiovascular diseases, diabetes and kidney diseases, and neoplasms were the major contributors to the high BMI-related burden. The burden of high BMI-related diseases generally tended to be greater among males and older age groups. Predictions for selected countries indicated a continued rise in the number of deaths and DALYs for high BMI-related diseases, with a stabilization in the age-standardized rate. There was no significant association between SDI levels and the burden of high BMI-related diseases in Asia (coefficient=0.13, p = 0.39).

CONCLUSION

The burden of high BMI-related diseases, a major public health issue, was increasing in Asia. To address this problem, coordinated action by governments, civil society and other key stakeholders should be taken to enhance awareness of the risks associated with high BMI and effectively reduce its impact.

Decomposition analysis of lung cancer and COPD mortality attributable to ambient PM2.5 in China (1990-2021)

OBJECTIVE

This study aimed to evaluate the long-term trends in lung cancer (LC) and chronic obstructive pulmonary disease (COPD) mortality attributable to particulate matter (PM2.5) in China and to identify the contributions of population aging and other risk factors to changes in mortality rates.

METHODS

Using data from 1991 to 2021, we assessed trends in LC and COPD deaths attributable to PM2.5 through linear regression. Decomposition analysis was conducted to determine the extent to which changes in mortality rates were driven by demographic and non-demographic factors.

RESULTS

The crude mortality rates attributable to PM2.5 increased significantly for LC (500.40%) and COPD (85.26%). From 1990 to 2021, LC mortality attributable to PM2.5 increased annually by 4.11% (95% CI: 3.64%, 4.59%), while COPD mortality decreased annually by 1.23% (95% CI: -0.82%, -1.65%). Decomposition analysis revealed that 43.0% of the increase in LC mortality was due to population aging, and 57.0% was attributed to changes in other risk factors. For COPD, population aging contributed to an 18.547/100,000 increase, whereas other risk factors reduced mortality by 10.628/100,000.

CONCLUSIONS

The findings highlight the critical roles of population aging and risk factor modification in LC and COPD mortality trends. Interventions to address aging-related vulnerabilities and air pollution control are essential to mitigate future health burdens.

Redefining global health in the 21st century: Towards a more equitable global health agenda

Global health is at a critical juncture, with significant achievements in reducing deaths from HIV and under-five mortality since 2000. However, progress in other areas, such as maternal mortality and tuberculosis, remains uneven, and cardiovascular diseases continue to rise. Compounding these challenges is the emerging threat of climate change, which is predicted to cause millions of health-related deaths by the end of the century. This commentary proposes a new global health model inspired by Kate Raworth's 'doughnut' framework, which emphasizes maintaining ecological and social boundaries to foster sustainable health. The inner boundary focuses on ensuring equitable access to essential health services, particularly for underserved populations. The outer boundary addresses the health impacts of environmental degradation and climate change, advocating for adaptive and resilient health systems. This model calls for a reorientation of global health priorities to balance human well-being with environmental sustainability, urging international collective action at platforms like COP29. By addressing both health equity and ecological stability, this framework aims to guide the global health community towards a more equitable and sustainable future.

Faecal metaproteomics analysis reveals a high cardiovascular risk profile across healthy individuals and heart failure patients

The gut microbiota is a crucial link between diet and cardiovascular disease (CVD). Using fecal metaproteomics, a method that concurrently captures human gut and microbiome proteins, we determined the crosstalk between gut microbiome, diet, gut health, and CVD. Traditional CVD risk factors (age, BMI, sex, blood pressure) explained < 10% of the proteome variance. However, unsupervised human protein-based clustering analysis revealed two distinct CVD risk clusters (low-risk and high-risk) with different blood pressure (by 9 mmHg) and sex-dependent dietary potassium and fiber intake. In the human proteome, the low-risk group had lower angiotensin-converting enzymes, inflammatory proteins associated with neutrophil extracellular trap formation and auto-immune diseases. In the microbial proteome, the low-risk group had higher expression of phosphate acetyltransferase that produces SCFAs, particularly in fiber-fermenting bacteria. This model identified severity across phenotypes in heart failure patients and long-term risk of cardiovascular events in a large population-based cohort. These findings underscore multifactorial gut-to-host mechanisms that may underlie risk factors for CVD.

Machine learning algorithms for diabetic kidney disease risk predictive model of Chinese patients with type 2 diabetes mellitus

BACKGROUND

Diabetic kidney disease (DKD) is a common and serious complication of diabetic mellitus (DM). More sensitive methods for early DKD prediction are urgently needed. This study aimed to set up DKD risk prediction models based on machine learning algorithms (MLAs) in patients with type 2 DM (T2DM).

METHODS

The electronic health records of 12,190 T2DM patients with 3-year follow-ups were extracted, and the dataset was divided into a training and testing dataset in a 4:1 ratio. The risk variables for DKD development were ranked and selected to establish forecasting models. The performance of models was further evaluated by the indexes of sensitivity, specificity, positive predictive value, negative predictive value, accuracy, as well as F1 score, using the testing dataset. The value of accuracy was used to select the optimal model.

RESULTS

Using the importance ranking in the random forest package, the variables of age, urinary albumin-to-creatinine ratio, serum cystatin C, estimated glomerular filtration rate, and neutrophil percentage were selected as the predictors for DKD onset. Among the seven forecasting models constructed by MLAs, the accuracy of the Light Gradient Boosting Machine (LightGBM) model was the highest, indicated that the LightGBM algorithms might perform the best for predicting 3-year risk of DKD onset.

CONCLUSIONS

Our study could provide powerful tools for early DKD risk prediction, which might help optimize intervention strategies and improve the renal prognosis in T2DM patients.

Stress hyperglycemia ratio as an independent predictor of acute kidney injury in critically ill patients with acute myocardial infarction: a retrospective U.S. cohort study

BACKGROUND

Acute kidney injury (AKI) is a frequent and severe complication in critically ill patients with acute myocardial infarction (AMI), significantly worsening prognosis. Identifying early risk markers for AKI in AMI patients is critical for timely intervention. The stress hyperglycemia ratio (SHR), a marker of acute glycemic response to physiological stress, has been proposed as a predictor of AKI, but its role remains unclear.

OBJECTIVE

This study investigates the association between SHR and AKI development in critically ill patients with AMI, using data from the MIMIC-III and MIMIC-IV databases.

METHODS

A total of 4,663 critically ill AMI patients were analyzed. SHR was evaluated for its association with AKI incidence using logistic regression, restricted cubic splines, and mediation analysis. Subgroup and sensitivity analyses were performed to confirm robustness. Additionally, Cox regression and Kaplan-Meier survival analysis were used to explore SHR's association with in-hospital mortality in the overall cohort and AKI subgroup.

RESULTS

Higher SHR levels were independently associated with an increased risk of AKI, demonstrating a J-shaped relationship. Mediation analysis revealed that neutrophil count and albumin partially mediated this effect. Kaplan-Meier survival curves showed significant differences in in-hospital mortality among SHR quartiles (log-rank p < 0.001). However, Cox regression analysis indicated that SHR was not an independent predictor of in-hospital mortality in either the full cohort or the AKI subgroup.

CONCLUSIONS

SHR serves as an early and independent marker for AKI risk in critically ill AMI patients, offering potential utility in clinical risk stratification. However, its role in predicting in-hospital mortality appears limited. These findings underscore the importance of glycemic monitoring and management in AMI patients at risk of AKI.

Determinants of outpatient healthcare-seeking behaviors among the rural poor affected by chronic conditions in India: a population-based cross-sectional study in seven states

BACKGROUND

A rising burden of chronic non-communicable diseases (CNCDs) increases demand for outpatient healthcare. Yet, evidence on preferences and barriers to healthcare services for India's most disadvantaged population, the target of India's largest public health insurance scheme (PM-JAY), is lacking.

OBJECTIVE

We explore determinants of outpatient healthcare-seeking behavior among PM-JAY eligible individuals with CNCDs in rural areas of seven states.

METHODS

Using cross-sectional data from a household survey (conducted between November 2019 and March 2020), we employed multilevel multinomial logistic regression to identify factors associated with seeking care from informal (home treatment, pharmacies, traditional healers), formal public, or formal private providers, compared with no care. Anderson's behavioral model informed the selection of independent variables.

RESULTS

Of 51,820 individuals, 5,061 (9.8%) reported a chronic condition. Despite their disease, 1,168 (23.1%) reported not using regular outpatient care. Another 2,421 individuals (48.0%) used formal private, 922 (18.3%) used formal public, and 535 (10.6%) used informal care. Predictors of formal private care were higher socioeconomic status (RRR = 2.441, 95% CI [1.61, 3.70]) and health insurance coverage (RRR = 1.478, 95% CI [1.12, 1.95]). Residents of Tamil Nadu, Kerala, and Gujarat were more likely to use formal public care (RRR = 23.915, 95% CI [9.01, 63.44]). Suffering from Major CNCDs or experiencing limitations in daily activities increased the probability of using healthcare across all options.

CONCLUSION

Future research should explore the reasons for non-utilization of chronic care and the preference for private providers. Policies to enhance public healthcare utilization and expand insurance for outpatient care could improve access and reduce health inequities.

Novel compounds of Taiwanese green propolis induce apoptosis of human glioblastoma cells by daylight photodynamic action

BACKGROUND

Glioblastoma, an aggressive brain cancer, has limited treatment options and poor prognosis. Taiwanese green propolis, known for its tumor-inhibitory properties, shows promise when combined with photodynamic therapy (PDT), a targeted, low-toxicity treatment. This study investigated a novel Taiwanese green propolis-based compound for inducing apoptosis in glioblastoma cells and its synergistic potential with daylight PDT.

METHODS

Ethanol extracts of green propolis, wheatgrass, and mulberry leaves were combined and analyzed using High-Performance Liquid Chromatography (HPLC). Apoptosis induction in U87 glioblastoma cells was assessed via the MTT assay following treatment with the compound alone and in combination with daylight PDT at 570 nm.

RESULTS

We identified Artepillin C as the main active component in the compound by HPLC, which significantly induced apoptosis in glioblastoma cells. Combined with daylight PDT, it demonstrated enhanced efficacy, with cell viability reduced from 95.2% at 0.25 µL to 11.3% at 8 µL of the compound extract. The EC50 decreased, indicating greater apoptotic activity compared to the extract alone.

CONCLUSION

This study provides the first in vitro evidence of synergistic anti-tumor effects of a Taiwanese green propolis-based compound daylight PDT (GPDT), highlighting a promising novel therapeutic approach that warrants further clinical investigation.

Maternal consumption of urbanized diet compromises early-life health in association with gut microbiota

Urbanization has significantly transformed dietary habits worldwide, contributing to a globally increased burden of non-communicable diseases and altered gut microbiota landscape. However, it is often overlooked that the adverse effects of these dietary changes can be transmitted from the mother to offspring during early developmental stages, subsequently influencing the predisposition to various diseases later in life. This review aims to delineate the detrimental effects of maternal urban-lifestyle diet (urbanized diet) on early-life health and gut microbiota assembly, provide mechanistic insights on how urbanized diet mediates mother-to-offspring transfer of bioactive substances in both intrauterine and extrauterine and thus affects fetal and neonatal development. Moreover, we also further propose a framework for developing microbiome-targeted precision nutrition and diet strategies specifically for pregnant and lactating women. The establishment of such knowledge can help develop proactive preventive measures from the beginning of life, ultimately reducing the long-term risk of disease and improving public health outcomes.

Evolving perspectives on evaluating obesity: from traditional methods to cutting-edge techniques

Objective: This review examines the evolution of obesity evaluation methods, from traditional anthropometric indices to advanced imaging techniques, focusing on their clinical utility, limitations, and potential for personalized assessment of visceral adiposity and associated metabolic risks.

Methods: A comprehensive analysis of existing literature was conducted, encompassing anthropometric indices (BMI, WC, WHR, WHtR, NC), lipid-related metrics (LAP, VAI, CVAI, mBMI), and imaging technologies (3D scanning, BIA, ultrasound, DXA, CT, MRI). The study highlights the biological roles of white, brown, and beige adipocytes, emphasizing visceral adipose tissue (VAT) as a critical mediator of metabolic diseases.

Conclusion: Although BMI and other anthropometric measurements are still included in the guidelines, indicators that incorporate lipid metabolism information can more accurately reflect the relationship between metabolic diseases and visceral obesity. At the same time, the use of more modern medical equipment, such as ultrasound, X-rays, and CT scans, allows for a more intuitive assessment of the extent of visceral obesity.

Global, regional and national burden of pancreatitis in children and adolescents, 1990-2021: a systematic analysis for the global burden of disease study 2021

BACKGROUND

Pancreatitis poses a significant global health burden, disproportionately affecting children and adolescents. This study uses the global burden of disease (GBD) 2021 dataset to evaluate pancreatitis epidemiology in this demographic, focusing on disparities by age, sex, and region.

OBJECTIVE

To assess global trends in pediatric pancreatitis, identify risk factors, and forecast disease burden to 2035.

METHODS

We analysed GBD 2021 data on deaths and disability-adjusted life years (DALYs) for pancreatitis in individuals under 20. The socio-demographic index (SDI) assessed the link between societal development and health outcomes. Bayesian age-period-cohort (BAPC) modelling and Poisson's linear models were applied to project future burdens and estimate annual percentage changes (EAPCs) in age-standardized rates.

RESULTS

In 2021, pancreatitis caused 1120.09 deaths in children and adolescents, comprising 2% of all pancreatitis-related deaths. Age-standardized death rate (ASDR) and DALYs rate declined from 1990 to 2021 (EAPC -0.92 and -0.86, respectively). Low-middle SDI regions, notably Andean and Central Latin America and Eastern Europe, faced the highest burden. Alcohol was a leading risk factor, accounting for 3.51% of related deaths, and males had higher death and DALYs rate.

CONCLUSIONS

Despite declining pancreatitis-related mortality and DALYs, the disease remains a challenge, particularly in low-middle SDI regions. Alcohol consumption is a key risk factor, underscoring the need for targeted public health interventions. Gender-, age-, and region-specific strategies are essential to mitigate pancreatitis impact in children and adolescents.

Cumulative associations between health behaviours, mental well-being, and health over 30 years

BACKGROUND

Both the number of risky health behaviours and the duration of exposure to these behaviours over time may increase the risk of later adverse outcomes. This study examined cumulative associations of risky health behaviours with both positive and negative aspects of mental well-being and health. It has a uniquely long follow-up period of over 30 years, from early adulthood to the beginning of late adulthood.

MATERIALS AND METHODS

The data were from the Jyväskylä Longitudinal Study of Personality and Social Development. The participants represent the Finnish age cohort born in 1959. This study utilized data collected at ages 27 (1986), 36 (1995), 42 (2001), 50 (2009), and 61 (2020-2021) (n = 206-326). Risk scores indicating the current number of risky behaviours of smoking, heavy alcohol consumption, and physical inactivity and their temporal accumulation over time were calculated. The associations of risk scores with mental well-being (depressive symptoms, psychological well-being) and health (self-rated health, number of metabolic risk factors) from age 36 onwards were analyzed with linear multilevel models adjusted for gender and education.

RESULTS

More current risky behaviours were associated with more depressive symptoms (B = 0.10, p = 0.032), lower psychological well-being (B = -0.10, p = 0.010), lower self-rated health (B = -0.45, p < 0.001), and more metabolic risk factors (B = 0.53, p = 0.013). The associations of temporal risk scores with the outcomes were even stronger (depressive symptoms: B = 0.38, p < 0.001; psychological well-being: B = -0.15, p = 0.046; self-rated health: B = -0.82, p < 0.001; metabolic risk factors: B = 1.49, p < 0.001). Among individual behaviours, the temporal risk score of alcohol consumption was negatively associated with most outcomes, while smoking was associated with poorer mental well-being and physical inactivity with poorer health.

CONCLUSIONS

The current and temporal accumulation of multiple risky health behaviours were associated with poorer mental well-being and health. Preventing these behaviours early in adulthood and midlife is crucial to avoid their accumulation and subsequent health risks.

The regulatory effect of chitooligosaccharides on islet inflammation in T2D individuals after islet cell transplantation: the mechanism behind Candida albicans abundance and macrophage polarization

Islet cell transplantation (ICT) represents a promising therapeutic approach for addressing diabetes mellitus. However, the islet inflammation during transplantation significantly reduces the surgical outcome rate, which is related to the polarization of macrophages. Chitooligosaccharides (COS) was previously reported which could modulate the immune system, alleviate inflammation, regulate gut microecology, and repair the intestinal barrier. Therefore, we hypothesized COS could relieve pancreatic inflammation by regulating macrophage polarization and gut microbiota. First, 18S rDNA gene sequencing was performed on fecal samples from the ICT population, showing abnormally increased amount of Candida albicans, possibly causing pancreatic inflammation. Functional oligosaccharides responsible for regulating macrophage polarization and inhibiting the growth of Candida albicans were screened. Afterwards, human flora-associated T2D (HMA-T2D) mouse models of gut microbiota were established, and the ability of the selected oligosaccharides were validated in vivo to alleviate inflammation and regulate gut microbiota. The results indicated that ICT significantly decreased the alpha diversity of gut fungal, altered fungal community structures, and increased Candida albicans abundance. Moreover, Candida albicans promoted M1 macrophage polarization, leading to islet inflammation. COS inhibited Candida albicans growth, suppressed the MyD88-NF-κB pathway, activated STAT6, inhibited M1, and promoted M2 macrophage polarization. Furthermore, COS-treated HMA-T2D mice displayed lower M1 macrophage differentiation and higher M2 macrophage numbers. Additionally, COS also enhanced ZO-1 and Occludin mRNA expression, reduced Candida albicans abundance, and balanced gut microecology. This study illustrated that COS modulated macrophage polarization via the MyD88/NF-κB and STAT6 pathways, repaired the intestinal barrier, and reduced Candida albicans abundance to alleviate islet inflammation.

PM2.5 concentration prediction algorithm integrating traffic congestion index

In this study, a strategy is proposed to use the congestion index as a new input feature. This approach can reveal more deeply the complex effects of traffic conditions on variations in particulate matter (PM2.5) concentrations. To assess the effectiveness of this strategy, we conducted an ablation experiment on the congestion index and implemented a multi-scale input model. Compared with conventional models, the strategy reduces the root mean square error (RMSE) of all benchmark models by > 6.07 % on average, and the best-performing model reduces it by 12.06 %, demonstrating excellent performance improvement. In addition, even with high traffic emissions, the RMSE during peak hours is still below 9.83 µg/m3, which proves the effectiveness of the strategy by effectively addressing pollution hotspots. This study provides new ideas for improving urban environmental quality and public health and anticipates inspiring further research in this domain.

Impact of improved air quality on lung function and blood pressure of middle-aged and older population in China

Long-term exposure to fine particulate matters (PM2.5) has been associated with respiratory and cardiovascular diseases and the burden are potentially higher in China experiencing heavy air pollution. In this study, we established the exposure-response association between long-term exposures to PM2.5 and lung function and blood pressure in Chinese middle-aged and older adults using linear mixed-effects and generalized additive mixed models based on 3 waves longitudinal health outcomes data by enrolling 19,988 participants from 121 cities across the mainland of China. We also assessed the effect of Clean Air Policy (CAP) based on a quasi-experimental difference-in-differences (DID) design. A 10 µg/m3 increase in PM2.5 concentration was associated with a 7.18 (95 % confidence interval [CI]: -8.35, -6.02) L/min decrease in PEF (peak expiratory flow) and a 0.72 (95 % [CI]: 0.53, 0.90) and a 0.30 (95 % [CI]: 0.18, 0.42) mmHg increase in systolic and diastolic blood pressure, respectively. The associations were more pronounced in males and rural areas for PEF, but similar across subgroups for blood pressure. DID results suggested that the effect of CAP on health outcomes were sensitive to magnitudes of reduction in PM2.5. A 5 µg/m3 reduction in PM2.5 or more generally led to 18.70 (95 % [CI]: 0.79, 36.61) higher PEF and -2.05 (95 % [CI]: -3.87, -0.23) lower diastolic blood pressure, respectively, compared to no reduction or increase in exposure. However, the effects were significant only in rural areas. Our analysis support CAP aiming to benefit public health and provides insights to inform future control policy for efficiently decreasing air pollution exposure burden.

Association between per- and polyfluoroalkyl substances with serum hepatobiliary system function biomarkers in patients with acute coronary syndrome

Previous studies have suggested that abnormal hepatobiliary system function may contribute to poor prognosis in patients with acute coronary syndrome (ACS) and that abnormal hepatobiliary system function may be associated with per- and polyfluoroalkyl substances (PFAS) exposure. However, there is limited evidence for this association in cardiovascular subpopulations, particularly in the ACS patients. Therefore, we performed this study to evaluate the association between plasma PFAS exposure and hepatobiliary system function biomarkers in patients with ACS. This study included 546 newly diagnosed ACS patients at the Second Hospital of Hebei Medical University, and data on 15 hepatobiliary system function biomarkers were obtained from medical records. Associations between single PFAS and hepatobiliary system function biomarkers were assessed using multiple linear regression models and restricted cubic spline model (RCS), and mixture effects were assessed using the Quantile g-computation model. The results showed that total bile acids (TBA) was negative associated with perfluorohexane sulfonic acid (PFHxS) (-7.69 %, 95 % CI: -12.15 %, -3.01 %). According to the RCS model, linear associations were found between TBA and PFHxS (P for overall = 0.003, P for non-linear = 0.234). We also have observed the association between between PFAS congeners and liver enzyme such as aspartate aminotransferase (AST) and α-l-Fucosidase (AFU), but it was not statistically significant after correction. In addition, Our results also revealed an association between prealbumin (PA) and PFAS congeners as well as mixtures. Our findings have provided a piece of epidemiological evidence on associations between PFAS congeners or mixture, and serum hepatobiliary system function biomarkers in ACS patients, which could be a basis for subsequent mechanism studies.

Diabetic peripheral neuropathy and neuromodulation techniques: a systematic review of progress and prospects

Neuromodulation for diabetic peripheral neuropathy represents a significant area of interest in the management of chronic pain associated with this condition. Diabetic peripheral neuropathy, a common complication of diabetes, is characterized by nerve damage due to high blood sugar levels that lead to symptoms, such as pain, tingling, and numbness, primarily in the hands and feet. The aim of this systematic review was to evaluate the efficacy of neuromodulatory techniques as potential therapeutic interventions for patients with diabetic peripheral neuropathy, while also examining recent developments in this domain. The investigation encompassed an array of neuromodulation methods, including frequency rhythmic electrical modulated systems, dorsal root ganglion stimulation, and spinal cord stimulation. This systematic review suggests that neuromodulatory techniques may be useful in the treatment of diabetic peripheral neuropathy. Understanding the advantages of these treatments will enable physicians and other healthcare providers to offer additional options for patients with symptoms refractory to standard pharmacologic treatments. Through these efforts, we may improve quality of life and increase functional capacity in patients suffering from complications related to diabetic neuropathy.

Interconnections between diabetic corneal neuropathy and diabetic retinopathy: diagnostic and therapeutic implications

Diabetic corneal neuropathy and diabetic retinopathy are ocular complications occurring in the context of diabetes mellitus. Diabetic corneal neuropathy refers to the progressive damage of corneal nerves. Diabetic retinopathy has traditionally been considered as damage to the retinal microvasculature. However, growing evidence suggests that diabetic retinopathy is a complex neurovascular disorder resulting from dysfunction of the neurovascular unit, which includes both the retinal vascular structures and neural tissues. Diabetic retinopathy is one of the leading causes of blindness and is frequently screened for as part of diabetic ocular screening. However, diabetic corneal neuropathy is commonly overlooked and underdiagnosed, leading to severe ocular surface impairment. Several studies have found that these two conditions tend to occur together, and they share similarities in their pathogenesis pathways, being triggered by a status of chronic hyperglycemia. This review aims to discuss the interconnection between diabetic corneal neuropathy and diabetic retinopathy, whether diabetic corneal neuropathy precedes diabetic retinopathy, as well as the relation between the stage of diabetic retinopathy and the severity of corneal neuropathy. We also endeavor to explore the relevance of a corneal screening in diabetic eyes and the possibility of using corneal nerve measurements to monitor the progression of diabetic retinopathy.

Systemic inflammation mediates the association between dietary inflammation index and incident anxiety and depression in UK Biobank

BACKGROUND

Evidence on whether systemic inflammation mediates the association between diet and depression and anxiety is lacking.

METHODS

We analyzed 55,799 participants from the UK Biobank, assessing dietary inflammatory index (DII) based on 3 days' 24-hour dietary recall. Systemic inflammation was represented by systemic immune-inflammation index (SII) and systemic inflammation response index (SIRI). Incident depression and anxiety were ascertained through linkage to hospital records, and Cox proportional hazard regression models evaluated the associations, with mediation analysis performed for systemic inflammation.

RESULTS

DII ranged from -6.87 to 4.88 with a median of -0.67. After a median follow-up time of 9.12 years, 1409 were diagnosed with depression and 1806 with anxiety. Higher DII level is associated with the incident risk of depression (HRQ4vsQ1 = 1.20, 1.09-1.32, P < 0.001) and anxiety (HRQ4vsQ1 = 1.10, 1.00-1.21, P < 0.001). SIRI and SII respectively mediate 4.12 % (95 % CI = 1.30 %-23.3 %, P < 0.001) and 4.43 % (95 % CI = 1.89 %-43.75 %, P < 0.001) of the association between DII and depression incidence. As for anxiety, SIRI mediated 8.27 % (95 % CI = 1.44 %-15.31 %, P < 0.001) and SII mediated 4.19 % (95 % CI = 1.58 %-11.47 %, P < 0.001), respectively.

LIMITATIONS

The potential coexistence of anxiety and depression with other psychiatric disorders and limitations in data on changes in DII and inflammation markers over time may bias the findings. The study's generalization is constrained by the demographic of participants.

CONCLUSION

Our findings suggest that DII is positively associated with depression and anxiety, which may be mediated by SII/SIRI.

Status and Opportunities for Improvement in Pain Education in Europe: A European Pain Federation EFIC Multiple-Methods Study

BACKGROUND

Pain is one of the most prevalent health issues in Europe, yet the quality of pain education for healthcare professionals remains unclear. This study assessed the status of undergraduate and postgraduate pain education for nurses, physicians, psychologists, and physiotherapists across Europe, identifying key strategies to enhance training and improve healthcare outcomes.

METHODS

A study using multiple methods was conducted, comprising a scoping review, an online survey of educators, and qualitative interviews with EFIC chapters and professional educational bodies.

RESULTS

The scoping review of 11 studies revealed a paucity of evidence, with significant heterogeneity in the hours dedicated to pain training and inconsistencies in both content, teaching, and assessment methods across European curricula. The survey of educators (n = 511) showed wide variability in pain education coverage, with psychology curricula particularly underrepresented compared to the more structured programmes in medicine and physiotherapy. The interviews highlighted curriculum constraints, lack of resources, and limited specialised staff as key barriers. They also underscored the importance of integrating pain education across all disciplines through international and interdisciplinary collaboration to enhance training efforts.

CONCLUSIONS

Significant gaps persist in the depth, consistency, and delivery of pain education for undergraduate and postgraduate health professionals across Europe. The absence of standardised, evidence-based curricula underscores the need for consistent pain education across all disciplines. Implementing targeted educational standards, increasing interdisciplinary training, and supporting qualified educators are essential to address this fragmented landscape. Standardising pain education has the potential to greatly improve patient outcomes by equipping healthcare professionals with more effective pain management skills.

SIGNIFICANCE STATEMENT

This multiple method study provides an updated and comprehensive overview of the current state of pain education for healthcare professionals in Europe at undergraduate and postgraduate levels. Substantial gaps remain in the depth, consistency, and delivery of pain education for both undergraduate and postgraduate healthcare professionals across Europe. This underscores the need to enhance pain education at the undergraduate level, with EFIC's existing medicine and physiotherapy resources offering potential models, alongside wider efforts to implement comprehensive postgraduate training. Standardising the delivery of targeted pain education has the potential to greatly improve patient outcomes by equipping healthcare professionals with more effective pain management skills.

Children and adolescents' demand for psychiatric services: Insight from the a nine-year-period visits population change in Nanjing, China

BACKGROUND

The prevalence of mental health issues among children and adolescents has been increasing. The objective of this study is to delineate the evolving characteristics of psychiatric visits among this demographic, including sex differences in service utilization, and to evaluate the capacity of existing medical resources to meet their needs for such visits.

METHODS

The data were sourced from Nanjing Brain Hospital and retrieved from outpatient and inpatient records of individuals aged 18 and below who visited the psychiatric department between the dates of July 2015 and June 2024. A descriptive analysis of the temporal changes in clinical features and general data was conducted, and an ETS time series model was employed to forecast whether visit demands are being met.

RESULTS

A total of 594,510 visits were recorded across both outpatient and inpatient systems. The overall number of visits increased year by year, with the fastest growth rate among patients with mood disorders. Furthermore, the growth rate of boys was significantly slower than that of girls (outpatient: OR = 0.93, P < 0.001; inpatient: OR = 0.91, P < 0.001). The ETS time series analysis indicated that future visit trends are expected to stabilize, with a significant proportion of children and adolescents still requiring N-CAP visits (outpatient: 31 %; inpatient: 44 %). In the inpatient system, the majority of this population is concentrated in the 17-18 age group (73 %).

CONCLUSION

The number of psychiatric visits for children and adolescents has been increasing on an annual basis. The current medical resources are insufficient to meet the growing demand.

Depressive disorders attributable to childhood sexual abuse and bullying victimization: Temporal trends and socio-demographic inequalities

BACKGROUND

Childhood sexual abuse and bullying victimization are critical risk factors for depressive disorders, contributing significantly to the global health burden. This study evaluates the global, regional, and national burden of depressive disorders attributable to these factors from 1990 to 2021, focusing on trends, age and sex disparities, and socio-demographic inequalities.

METHODS

Using Global Burden of Disease 2021 data from 204 countries, we measured the burden in disability-adjusted life years (DALYs) with 95 % uncertainty intervals (UI). Temporal trends were assessed via estimated annual percentage change (EAPC), with COVID-19-related changes represented by percentage change. Socio-demographic influences were examined using the Socio-demographic Index and inequality indices. Future trends were forecasted using Bayesian models.

RESULTS

The global age-standardized DALYs rate (ASDR) for depressive disorders attributable to childhood sexual abuse was 18.08 (95 % UI: 8.75-30.97) per 100,000 population, while bullying victimization accounted for 44.32 (95 % UI: 18.72-83.89). From 1990 to 2021, the burden linked to childhood sexual abuse decreased, whereas bullying victimization steadily increased. Females experienced a higher burden from childhood sexual abuse, while bullying-related depressive disorders peaked in males aged 15-24. In 2021, depressive disorders attributable to childhood sexual abuse displayed negative slope index of inequality values (-14.42, 95 % confidence intervals: -19.04 to -9.80). By 2035, ASDRs for both factors are projected to increase by 37-50 %.

CONCLUSIONS

This study highlights the substantial burden of depressive disorders due to childhood trauma, emphasizing the need for tailored interventions, equitable mental health care, and global collaboration to address these challenges.

Development and validation of a convenient dementia risk prediction tool for diabetic population: A large and longitudinal machine learning cohort study

BACKGROUND

Diabetes mellitus has been shown to increase the risk of dementia, with diabetic patients demonstrating twice the dementia incidence rate of non-diabetic populations. We aimed to develop and validate a novel machine learning-based dementia risk prediction tool specifically tailored for diabetic population.

METHODS

Using a prospective from 42,881 diabetic individuals in the UK Biobank, a rigorous multi-stage selection framework was implemented to optimize feature-outcome associations from 190 variables, and 32 predictors were final retained. Subsequently, eight data analysis strategies were used to develop and validate the dementia risk prediction model. Model performance was assessed using area under the curve (AUC) metrics.

RESULTS

During a median follow-up of 9.60 years, 1337 incident dementia cases were identified among diabetic population. The Adaboost classifier demonstrated robust performance across different predictor sets: full model with 32 predictors versus streamlined simplified model with 13 predictors selected through forward feature subset selection algorithm (AUC: 0.805 ± 0.005 vs. 0.801 ± 0.005; p = 0.200) in model development employing an 8:2 data split (5-fold cross-validation for training). To facilitate community generalization and clinical applicability, the simplified model, named DRP-Diabetes, was deployed to a visual interactive web application for individualized dementia risk assessment.

LIMITATIONS

Some variables were based on self-reported.

CONCLUSIONS

A convenient and reliable dementia risk prediction tool was developed and validated for diabetic population, which could help individuals identify their potential risk profile and provide guidance on precise and timely actions to promote dementia delay or prevention.

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.

Temporal trends in prevalence for depressive disorders among women of childbearing age: Age-period-cohort analysis 2021

BACKGROUND

Depressive disorders (DD) are significant mood disorders with a notable female preference, especially affecting the well-being of women of childbearing age (WCBA). This population with DD was notably associated with severe complications during the perinatal period, leading to unfavourable maternal mortality and morbidity.

METHODS

This study extracted data from the Global Burden of Disease Study (GBD) 2021. We analysed the number of cases, calculated the age-standardized prevalence rate, and performed the age-period-cohort (APC) model to estimate prevalence trends and age, period, and cohort effects from 1992 to 2021.

RESULTS

From 1992 to 2021, the global number of WCBA with DD surged by 59.46 %, reaching 121 million cases up to 2021. India, China, and the USA had over 40 million prevalence cases, accounting for 36.17 % of global prevalence. The global net drift of DD prevalence among WCBA was -0.13 % per year (95 % CI: -0.17 % to -0.09 %). Age effects demonstrated similar patterns that the prevalence risk rose with age. All SDI regions showed unfavourable prevalence risks surging in the period of 2017-2021. The cohort risk of prevalence increased globally in younger generations after the 1987-1996 cohort.

CONCLUSION

Although the overall temporal trend (net drift) presented a downward trend in DD prevalence among WCBA over the past three decades, the prevalence cases had continued to rise with unfavourable period and cohort effects. Since COVID-19 triggered a massive increase in the prevalence of depressive disorders worldwide, there is an urgent need for stakeholders and policy makers to strengthen mental health-care systems.

Understanding physical aging in relation to biological aging, telomere length: A systematic review

BACKGROUND

Telomere length (TL) serves as a marker for biological aging, influenced by chronological aging but distinct from it. This systematic review aims to synthesize the evidence on the associations between components of physical aging and TL in the elderly population.

METHODS

A comprehensive search was conducted in online databases of PubMed, Web of Science, ProQuest, and ScienceDirect to identify the eligible papers published until 1st August 2024. The authors independently extracted data using the standardized form. The quality of the included studies was evaluated for the risks of biases.

RESULTS

A total of 1080 records were initially identified using the predefined search strategy. A total of 40 eligible records were included in this review. When assessing physical aging, the nature and type of measurements across studies vary, including subjective, objective, and a combination of both approaches. Subjective assessments of general health or physical limitations may be linked with TL, while frailty, whether measured subjectively or objectively, shows associations with TL in less than 35 percent of total studies. In contrast, composite measures of physical performance/ability are consistently associated with TL in the elderly population.

CONCLUSIONS

In conclusion, we demonstrated that the associations between physical aging and TL varies depending on the type and nature of physical aging assessments. Composite measures of physical performance/ability demonstrate a strong and consistent parameter of physical aging to link with TL. Future research should prioritize standardized, multidimensional approaches to measure physical aging to understand better its association with TL to support healthy aging strategies.

Work-related musculoskeletal pain among orthopaedic surgeons: A systematic literature search and narrative synthesis

Background

Performing surgery is associated with physical demands and musculoskeletal hazards. Orthopaedic surgery is a particularly physically demanding surgical discipline. We aimed to systematically examine the literature characterizing the prevalence and nature of work-related musculoskeletal (MSK) pain among orthopaedic surgeons.

Methods

Systematic search and narrative synthesis methodology of studies on MSK pain among orthopaedic surgeons was conducted in MEDLINE, Embase, and CINAHL. Data extraction of study characteristics was performed and further analyzed for prevalence, pain outcome measures, and anatomical location of MSK pain. This review is registered in PROSPERO CRD420250650511.

Results

25 studies met our inclusion criteria. 14 studies were published since 2019, with no articles before 1995. 11 papers studied surgeons in the USA and the remaining from other countries. The range of overall MSK pain prevalence was 51.7-97.0 %. 11 studies reported on pain in 1-2 anatomical regions, while 9 studies reported on >3 regions. MSK pain was most frequently reported in the lower back (prevalence of 17.1-77.0 %); neck (10.4-74.4 %); and shoulder (12.8-66.7 %). 13 studies determined MSK pain via author-made or unspecified instruments while 12 papers used validated tools for surveying MSK pain. 17 studies specified a time period in which MSK pain reports were captured.

Conclusion

Orthopaedic surgeons report a high frequency of MSK pain, in the lower back, neck and shoulder regions. There was considerable heterogeneity of research methods and outcome measures utilized. Further research is needed to better understand the role of preventive measures and the potential influence of MSK pain on surgeon occupational function, and the orthopaedic surgeon workforce.

Rhein alleviates diabetic cardiomyopathy by inhibiting mitochondrial dynamics disorder, apoptosis and hypertrophy in cardiomyocytes

BACKGROUND

Diabetic cardiomyopathy (DCM) is a significant cardiovascular complication in diabetic patients, and treatment regimens are limited. Rhein, a compound extracted from the herb rhubarb, was investigated in this study for its efficacy on DCM and the potential mechanism.

METHODS

Streptozotocin-induced DCM mice, high-glucose (HG)-treated neonatal rat cardiomyocytes (NRCMs), and H9c2 cells with ClpP knockdown were used for the study. We performed phenotypic and molecular mechanistic studies using immunoblotting, quantitative polymerase chain reaction, transmission electron microscopy, cardiac echocardiography, and histopathological analysis.

RESULTS

Rhein improved the cardiac function and myocardial fibrosis, and decreased the cross-sectional area of cardiomyocytes in the DCM mice. It also improved mitochondrial dynamic disorder as evidenced by a decreased ratio of mitochondrial fission-related proteins p-Drp1S616/ Drp1 and increased expression of mitochondrial fusion proteins (Opa1, Mfn1 and Mfn2). Rhein mitigated apoptosis as indicated by decreased apoptosis-related proteins (caspase 9, cleaved-caspase 3 and Bax) and increased anti-apoptosis protein Bcl2 in the heart tissue of DCM mice. Upregulations of cardiac hypertrophy associated genes (ANP, BNP and β-MHC) were significantly inhibited by Rhein treatment. In addition, the level of ClpP, a mitochondrial protease, was increased in DCM, but was normalized by Rhein treatment. However, ClpP knockdown exacerbated cardiomyocyte injury in the presence or absence of HG in H9c2 cells, indicating that a normal level of ClpP is essential for cardiomyocytes to survive.

CONCLUSIONS

Our results suggest that Rhein protects DCM by ameliorating mitochondrial dynamics disorder, inhibiting cardiomyocyte apoptosis, and myocardial hypertrophy. These protective effects of Rhein may be mediated by preventing ClpP upregulation.

Epidemiological Dynamics of Burden and Health Inequalities in Metabolic Dysfunction-associated Steatotic Liver Disease in Adolescents at Global, Regional, and National Levels, 1990-2021

Background

Metabolic dysfunction-associated steatotic liver disease (MASLD) has become one of the major causes of chronic liver disease among adolescents. However, epidemiological studies on MASLD in adolescents are still insufficient. In this study, we aim to investigate the global burden and the trend of MASLD in adolescents from 1990 to 2021.

Methods

The age-standardized incidence, prevalence, mortality, and disability-adjusted life years (DALYs) of MASLD were calculated based on the Global Burden of Disease (GBD) 2021 study and stratified by sex, socio-demographic index (SDI), GBD regions, and countries. The temporal trends were examined using the average annual percentage change (AAPC) and joinpoint regression.

Results

From 1990 to 2021, the global trends of age-standardized incidence rate (ASIR) and age-standardized prevalence rate (ASPR) of MASLD show notable increase, and the male is significantly higher than the female in adolescents. According to the incidence and prevalence, nations with low SDI confront a higher burden of MASLD. Besides, the inequality of incidence and prevalence between different SDI regions have shrunk in 2021, but the inequality of DALYs and mortality are still exacerbated. Decomposition analysis revealed that population growth and epidemiological changes were the main reasons for the increase in the incidence of MASLD.

Conclusion

From 1990 to 2021, there is a significant upward trend in the incidence of MASLD among adolescents worldwide. Of particular note are male adolescents, East Asian regions, and groups living in high SDI countries.