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Randomised controlled trials have demonstrated that treatment with glucagon-like peptide-1 receptor agonists (GLP-1RAs) reduces body weight, waist circumference and haemoglobin A1c (HbA1c) levels in patients with schizophrenia. However, because of participant selection in clinical trials, it remains unclear whether the beneficial metabolic effects of GLP-1RAs for patients with schizophrenia extend to real-world clinical settings.
Aims
We investigated whether GLP-1RA treatment initiation was associated with reductions in HbA1c, low-density lipoprotein (LDL) and triglyceride levels (the latter two as proxies for weight loss) in individuals with schizophrenia.
Method
We used the Danish nationwide registers to identify individuals with schizophrenia between 1996 and 2023. Among those, we identified individuals initiating GLP-1RA treatment. The main outcomes were changes in HbA1c, LDL and triglyceride levels following initiation of GLP-1RA treatment. Changes in HbA1c, LDL and triglyceride levels were visualised graphically and quantified with interrupted time-series analyses.
Results
We identified 3042 individuals with schizophrenia who initiated a GLP-1RA. Initiation of GLP-1RA treatment for diabetes was followed by reductions in HbA1c, LDL and triglyceride levels of 11.4, 6.2 and 14.8%, respectively. Initiation of GLP-1RA treatment for overweight was followed by reductions in HbA1c, LDL and triglyceride levels of 3.4, 4.9 and 12.7%, respectively. All level changes were statistically significant (p < 0.001).
Conclusions
Initiation of GLP-1RA treatment was followed by clinically meaningful reductions in HbA1c, LDL and triglyceride levels among individuals with schizophrenia. These findings suggest that the metabolic benefits of GLP-1RA treatment found in randomised clinical trials in schizophrenia extend to real-world clinical settings.
This study aimed to examine the associations among complication risk perception, gender role stress, and symptom management self-efficacy in patients with Type 2 diabetes mellitus and to identify factors associated with these constructs.
Methods:
This analytical cross-sectional study was performed at the endocrinology outpatient clinic of a hospital. The sample consisted of 500 Type 2 DM patients (250 women, 250 men). Study data were gathered through the Individual Information Form (IIF), Risk Perception Survey–Diabetes Mellitus Scale (RPS-DM), Symptom Management Scale for Self-Efficacy (SMSSE), Feminine Gender Role Stress Scale (FGRSS), and Masculine Gender Role Stress Scale (MGRSS). The data were analyzed using the Mann–Whitney test, Kruskal–Wallis H test, Spearman correlation coefficients, and binary logistic regression.
Results:
It was determined that both in women and men, it was found that as gender role stress increased, composite and environmental risk perceptions increased, and symptom management self-efficacy decreased (p < 0.001). According to logistic regression analysis, when risk knowledge increases in women, self-efficacy will increase (OR: 0.595), and composite risk perception will decrease (OR: 7.377). When composite risk perception increases in men, self-efficacy will decrease (OR: 16.933).
Conclusions:
Complication risk perception and gender role stress were associated with symptom management self-efficacy among patients with Type 2 DM, with these associations differing by sex. Future interventional studies are needed to determine whether addressing these factors improves symptom management for self-efficacy. The findings may also help nurses recognize sex-specific differences when planning individualized patient care.
We aimed to examine changes in antidiabetic drug utilization associated with implementation and subsequent easing of pandemic-related restrictions.
Background:
The COVID-19 pandemic and associated restrictions disrupted healthcare access and glycemic regulation, affecting diabetes management.
Methods:
We collected nationwide outpatient antidiabetic drug sales and projected prescribing data from IQVIA Turkey between 01.03.2018 and 31.12.2022. We assessed average monthly consumption, expenditure, and quarterly prescribing trends across ‘before restrictions’ (BfR, 01.03.2018–31.03.2020), ‘during restrictions’ (DuR, 01.04.2020–31.03.2022), and ‘after restrictions’ (AfR, 01.04.2022–31.12.2022) periods. Consumption and prescribing levels were expressed as ‘defined daily doses/1,000 inhabitants/day’ (DID).
Results:
Antidiabetic consumption increased from 123.6 ± 12.2 DID in BfR to 156.3 ± 25.4 DID in DuR and remained elevated in AfR (151.2 ± 28.9 DID), paralleled by expenditure (€63.6 m ± 8.4 m, €85.1 m ± 14.8 m, and €83.9 m ± 19.1 m, respectively). Prescribing levels declined from BfR to DuR (56.4 ± 3.5 to 29.9 ± 3.6 DID, p < 0.001) and slightly recovered in AfR (46.0 ± 10.9 DID, p > 0.05 vs. earlier periods). Oral antidiabetic consumption rose from 71.2 ± 6.8 DID in BfR to 90.6 ± 17.2 DID in DuR (p < 0.001) and further to 96.9 ± 19.4 DID in AfR (p < 0.001 vs. BfR), while sodium-glucose cotransporter-2 inhibitor use increased across periods (p < 0.001). Injectable antidiabetic consumption, mainly insulins, increased from BfR to DuR (p < 0.001), and decreased in AfR (p < 0.01 vs. DuR).
Conclusion:
We demonstrated a sustained increase in antidiabetic consumption following implementation of COVID-19-related restrictions, persisting beyond easing of most measures. Medication-access policies, panic stockpiling, improved glycemic adherence, and newer therapies might have contributed. These findings may inform strategies to strengthen family physician-community pharmacist coordination while maintaining treatment continuity and optimizing medication access during future public health emergencies.
A brand new chapter to this Edition of the Course Manual. Within increasing national awareness of the importance of optimum management of diabetes in pregnancy this chapter explores the underlying pathophysiology of both pre-existing and gestational diabetes. Key emergencies, such as diabetic ketoacidosis and hypoglycaemia, are also explored with clear management algorithms. Key learning points: Understand the different types of diabetes with their associated risks. Recognise the importance of supporting pregnant women to achieve optimal blood glucose levels to improve outcomes. Understand that careful surveillance and multi-professional support for women with diabetes in pregnancy reduces the risk of adverse outcomes, including diabetes emergencies. Gain confidence in the multi-professional management and prevention of diabetes emergencies in pregnancy including hypoglycaemia, hyperglycaemia and diabetic ketoacidosis. Recognise that prompt recognition and timely management of diabetes emergencies is essential to prevent potentially avoidable adverse outcomes.
People with depressive disorder have increased premature mortality and higher rates of diabetes mellitus than general population. Evidence shows that diabetes may further increase their risk of premature death from diabetes-related complications, especially cardiovascular diseases (CVDs). Earlier studies examining depression-associated outcomes in diabetes patients have shown mixed results and were hindered by important limitations, especially the use of self-reported questionnaires to ascertain depression, causing misclassification bias by identifying subclinical symptoms or diabetes distress. Associations of depression with specific diabetes complications have not been systematically evaluated. This meta-analysis aimed to investigate the risk of mortality and complications among patients with depression and co-occurring diabetes (depression-diabetes group) relative to patients with diabetes-only (diabetes-only group), on their all-cause mortality rates, and if applicable cause-specific mortality rates, and occurrence of specific diabetes complications.
Methods
We systematically reviewed and quantitatively synthesized diabetes-related outcomes in patients with depression by searching Embase, MEDLINE, PsycInfo and Web-of-Science from inception to 20 December 2024, and included studies that examined mortality and complication outcomes in depression-diabetes group relative to diabetes-only group. Results were synthesized by random-effects meta-analytic models, with stratified-analyses (subgroup analyses and meta-regression) by study-level characteristics, including age, gender, study period, geographic region, follow-up duration and nature of diabetes sample. The study was registered with PROSPERO (CRD42024595145).
Results
Twenty-six studies were identified from nine geographic regions. Regarding mortality risk, depression-diabetes group exhibited increased risks of all-cause mortality (RR = 1.30 [95% CI: 1.21–1.39]) and CVD-specific mortality (1.15 [1.02–1.29]) relative to diabetes-only group. Regarding complication risk, depression-diabetes group showed increased risk of complications (1.28 [1.18–1.40]) relative to diabetes-only group, especially in incident-diabetes sample signifying advanced disease stage upon presentation, with stratified-analyses showing higher risk of metabolic complications (1.63 [1.33–1.99]) and cardiovascular complications (1.20 [1.11–1.29]), and lower likelihood of retinopathy (0.84 [0.76–0.94]), albeit comparable rates of cerebrovascular complications (1.36 [0.99–1.87]), nephropathy (1.09 [0.93–1.27]) and peripheral-vascular complications (0.97 [0.79–1.18]). Both overall mortality and complication risks were present in various regions and persisted over time. Heterogeneities were noted and could not be entirely explained by stratified analyses.
Conclusions
Our study demonstrated that patients with depression and co-occurring diabetes were associated with elevated overall mortality risk and complication risk (particularly metabolic and cardiovascular-complications) than non-depressed counterparts, suggesting an overall poorer glycemic control that might eventually drive their earlier death. Comprehensive and multipronged interventions are needed for individualized risk estimation of diabetes-related outcomes, with consequent early interventions to minimize the avoidable physical morbidity and premature mortality in this vulnerable population.
Dextromethorphan/bupropion (DXM/BUP) is the first orally administered antidepressant combining dextromethorphan, a non-competitive N-methyl-D-aspartate (NMDA) receptor antagonist and sigma-1 receptor agonist, and bupropion, a CYP2D6 inhibitor and antidepressant. DXM/BUP was approved by the United States Food and Drug Administration for Major Depressive Disorder (MDD) in adults in August 2022. Given that select psychotropic agents prescribed for MDD may alter glucose and insulin homeostasis, we investigated whether DXM/BUP was associated with disproportionate reporting of diabetes mellitus or hyperglycemia. Disproportionality analyses were conducted using reporting odds ratios (RORs), with DXM/BUP and comparator agents evaluated relative to a reference agent (acetaminophen). Data were obtained from the Food and Drug Administration Adverse Event Reporting System (FAERS) from the year of approval to April 26, 2026. A sensitivity analysis was performed on a restricted dataset from January 1, 2022, to April 30, 2026. Statistical significance was defined as a 95% confidence interval (CI) excluding 1.0. DXM/BUP was not associated with disproportionate reporting of diabetes mellitus (ROR = 0.33, 95% CI [0.07, 1.65], p = 0.18) or hyperglycemia (ROR = 0.10, 95% CI [0.01, 1.67], p = 0.11) relative to acetaminophen. Findings from the restricted 2022–2026 analysis were directionally consistent with the primary analysis. Given the sparse number of reports and wide CIs, these findings should be interpreted as preliminary and underpowered, rather than evidence of metabolic neutrality. Continued pharmacovigilance and prospective investigation are needed to further characterize the metabolic profile of DXM/BUP.
Diabetes and mental health problems are closely linked, yet evidence examining this relationship among international labour migrants in the Gulf region is limited. Labour migrants are exposed to distinct occupational and psychosocial stressors that may increase vulnerability to depression and anxiety, particularly in the context of chronic diseases such as diabetes.
Aims
This study examined the prevalence and correlates of depressive and anxiety symptoms among male migrant workers with type 2 diabetes attending out-patient services in Qatar.
Method
A clinic-based, cross-sectional study was conducted among adult male migrants receiving care at endocrinology out-patient clinics in Qatar. Symptoms of depression and anxiety were assessed using Patient Health Questionnaire 9 and Generalized Anxiety Disorder 7. Sociodemographic and clinical variables were collected using structured questionnaires and electronic medical records. Associations between clinical and sociodemographic factors and mental health outcomes were examined using chi-square tests and logistic regression analyses.
Results
A total of 339 participants were included, predominantly of South Asian origin. Clinically significant depressive symptoms were identified in 21.3% of participants, with 14.8% reporting clinically significant anxiety symptoms. Depression severity was significantly associated with diabetes treatment modality and past psychiatric history. Anxiety severity was significantly associated with ethnicity and past psychiatric history. In multivariate analysis, past psychiatric illness independently predicted anxiety symptoms (odds ratio 6.24, 95% CI: 1.91–20.38, p = 0.002). No significant associations were observed between mental health outcomes and glycaemic control or duration of diabetes.
Conclusions
Lower-skilled male labour migrants with diabetes experience a substantial burden of depressive and anxiety symptoms, highlighting a clinically important but often overlooked dimension of diabetes care in this population. Past psychiatric illness and more complex diabetes treatment regimens were associated with poorer mental health outcomes. These findings support the need for integration of mental health assessment and targeted support within routine diabetes services for migrant worker populations.
Necrotising otitis externa is a severe, potentially life-threatening infection of the external auditory canal and skull base, first formally described by Chandler in 1968. However, historical literature suggests that its clinical features were recognised long before this, without conceptual unification.
Methods
A narrative historical review was undertaken using primary and secondary sources, including early otological texts, case reports and modern literature.
Results
Descriptions consistent with necrotising otitis externa appear as early as the nineteenth century, with recurrent observations of severe otitis externa, temporal bone involvement and systemic vulnerability. These remained fragmented across diagnostic categories until the mid-twentieth century. Chandler’s work represents a transition from clinical observation to conceptual recognition, providing a unifying framework that enabled consistent diagnosis, comparison and subsequent study of the condition.
Conclusion
The evolution of necrotising otitis externa reflects a process of progressive recognition, offering insight into ongoing challenges in defining and studying the disease in contemporary clinical practice.
Diabetes distress, whereby people with diabetes experience distressing psychological symptoms associated with living with their condition, is an emerging problem in India. Diabetes distress leads to self-care deficits, suboptimal glycaemic control (which can lead to increasing risks of complications) and impaired quality of life.
Aims
To determine the burden of diabetes distress and its associated factors in an Indian tertiary care centre in Trichy, Tamil Nadu, India, covering a population of 1.25 million.
Method
This prospective observational study involved a structured questionnaire covering demographic and clinical details, which was given to patients. The Diabetes Distress Scale 17 (DDS-17) was used to assess diabetes distress levels. The DDS-17 also measures four subdomains: emotional burden, physician-related distress, regimen-related distress and diabetes-related interpersonal distress. Patients were divided into two groups based on their DDS-17 score: no diabetes distress (DDS-17 score <2) versus diabetes distress (DDS-17 score ≥2) and compared. Correlation analysis, chi-squared tests and t-tests were used, with P < 0.05 considered statistically significant.
Results
Of 1019 respondents (mean age 56 years; 59.6% male, 40.4% female), diabetes distress was reported in 24.4% (n = 249). Factors significantly associated with higher DDS-17 scores were younger age (<45 years) (P < 0.0001), long-standing diabetes (>10 years) (P < 0.0001), and smoking and alcohol (P < 0.05). Significant protective factors for diabetes distress included working, daily exercise, no comorbidities and medical insurance cover (P < 0.05). Significant positive correlation between DDS-17 score and all four subdomains was observed (P < 0.0001).
Conclusions
Our findings highlight the need for routine psychological screening and holistic management strategies in diabetes care, to improve patient outcomes and quality of life.
Individuals with type 2 diabetes are at increased risk for developing CVD. We assessed how dietary counselling on a high-quality, fibre-rich diet influenced cardiometabolic health of patients with type 2 diabetes. In this 6-month trial, 121 patients with type 2 diabetes (67 (sd 8·7) years, 68 % men, BMI 27·8 kg/m2) were assigned to dietary counselling (n 61) or standard care (n 60). Counselling included 4–7 individual sessions with a dietitian, aimed at increasing fibre intake to improve diet quality. The primary outcome was a composite risk score estimating 10-year CVD risk. Secondary outcomes included diet quality, assessed by the Dutch Healthy Eating Index-2015 (DHD15-index), HbA1c, LDL-cholesterol, blood pressure, body weight and medication use. Diet quality score at baseline was 115 (sd 26) and similar across groups. Over 6 months, DHD15-index scores improved by 4·5 points (95 % CI: −0·2, 9·1) in the intervention group v. control, but not significant. The change in 10-year CVD risk across the 6 months of the trial (primary outcome) did not differ between groups −0·1 %, 95 % CI: −0·2, 0·1. Changes over time in HbA1c (–1·1 mmol/mol, 95 % CI: −4·4, 2·3), LDL-cholesterol (0·0 mmol/l, 95 % CI: −0·2, 0·3), blood pressure (–1 mmHg, 95 % CI: −6, 4), body weight (–0·1 kg, 95 % CI: −1·2, 1·1) or medication use did not differ between groups. Dietary counselling for 6 months slightly improved adherence to a high-quality, fibre-rich diet in patients with type 2 diabetes but did not significantly impact cardiometabolic health or medication use.
The dual burden of tuberculosis (TB) and diabetes mellitus (DM) presents a growing challenge for health systems in low- and middle-income countries (LMICs), including Pakistan. Despite global and national policies advocating for integrated care, evidence on health facility readiness to operationalize integration remains scarce. This study assessed the readiness of TB basic management units (BMUs) to deliver integrated TB-DM care and explored implementation barriers using the Consolidated Framework for Implementation Research (CFIR).
Methods:
We conducted an explanatory sequential mixed-methods study from September 2024 to February 2025 across 13 TB BMUs in five districts of Pakistan. Quantitative readiness data were collected using a structured tool adapted from the WHO Service Availability and Readiness Assessment (SARA), generating a composite score across four domains. Subsequently, qualitative data were gathered through multi-stakeholder focus group discussions with healthcare providers, facility managers, patients, caregivers, and policymakers. Reflexive thematic analysis was conducted and mapped to CFIR Inner Setting constructs to contextualize quantitative findings.
Results:
Only one facility demonstrated high readiness, while 12 showed low readiness. Facilities lacked routine comorbidity screening, trained staff, diagnostic capacity, and essential medicines. Key barriers included inadequate infrastructure, workforce shortages, fragmented information systems, and low prioritisation of integrated care. Financial constraints and limited coordination further hindered implementation.
Conclusion:
This study highlights critically low readiness among TB facilities in different districts of Pakistan to deliver integrated TB-DM care, reflecting systemic weaknesses across core domains. Strengthening systems, building capacity, and improving integration strategies are essential to bridge gaps between policy and practice.
This study systematically evaluates the effects of probiotic interventions on gut microbiota and clinical outcomes in diabetic patients to determine the optimal target population and conditions for effective use, with an emphasis on precision treatment. A comprehensive search was performed across PubMed, Web of Science, Cochrane Library, Embase, China National Knowledge Internet (CNKI), and Wanfang databases until April 2024. Randomized controlled trials (RCTs) assessing probiotics as adjunctive therapy for diabetes were included. The control group received standard care, and the intervention group received probiotics alongside standard care. Data were managed with Endnote and Excel, and analyses were conducted using Revman 5.3 and Stata 16. Twelve RCTs involving 1113 participants were included. Probiotics significantly increased fecal Lactobacillus (standardized mean difference (SMD) 1.42, P < 0.0001, I2 = 95 %) and Bifidobacterium levels (SMD 1.27, P < 0.0001, I2; = 90 %) and reduced fasting plasma glucose (SMD −0.35, P = 0.004). Subgroup analysis showed that shorter intervention durations (≤ 3 months) improved FPG, HbA1c, and Bifidobacterium levels, while younger patients (≤ 60 years) experienced the most significant improvements in Bifidobacterium levels. In conclusion, probiotics improve gut microbiota and clinical outcomes in diabetic patients, with intervention duration and patient age as key factors influencing treatment effectiveness.
This study aimed to determine the prevalence of undiagnosed diabetes and prediabetes in patients presenting with recurrent otomycosis and to evaluate associated risk factors, fungal profiles and cerumen pH variations.
Methods
This cross-sectional study included 213 adults with greater than or equal to two episodes of otomycosis. Glycaemic status was assessed using fasting blood sugar, post-prandial blood sugar and glycated haemoglobin. Fungal identification and cerumen pH measurement were performed. Multivariate analysis identified predictors of recurrence.
Results
Undiagnosed diabetes and prediabetes were found in 30 per cent and 13 per cent of patients, respectively. Candida albicans predominated in diabetics, while Aspergillus niger was common in normoglycaemics. Cerumen pH was significantly higher in diabetics (6.6) compared to normoglycaemics (5.3). Glycated haemoglobin greater than or equal to 6.5 per cent, Candida infection and steroid ear drop use were independent predictors of recurrence.
Conclusion
A substantial proportion of patients with recurrent otomycosis harbour unrecognised glycaemic abnormalities. Routine diabetes screening in ENT clinics may aid in early metabolic disease detection and reduce recurrence rates.
Continuous glucose monitoring (CGM) has revolutionized diabetes management by providing real-time data on blood glucose fluctuations. Unlike traditional methods, CGM systems offer continuous feedback, enabling individuals to better regulate glucose levels in response to lifestyle factors such as diet, exercise, and stress. This technology has been shown to improve glycemic control and stabilize HbA1c levels. Beyond its primary role in diabetes management, emerging research highlights the relationship between metabolic health and mental wellbeing. Glucose dysregulation has been implicated in mood instability, and fluctuations in blood glucose levels may directly influence emotional states. Notably, some researchers have proposed reclassifying major depressive disorder (MDD) as “Metabolic Syndrome Type II” due to shared pathophysiological mechanisms involving glucose homeostasis and inflammation. Given these connections, CGM technology may offer mental health benefits by promoting glucose stability. For individuals with diabetes who also experience psychiatric conditions such as MDD or generalized anxiety disorder (GAD), CGM use may contribute to improved mood regulation and reduced psychiatric symptoms. By addressing both metabolic and mental health concerns, CGM holds promise as a valuable tool in enhancing overall wellbeing. Further research is warranted to explore the full potential of CGM in supporting mental health outcomes in individuals with metabolic disorders.
Diabetes mellitus affects about 830 million people worldwide, with 2.5 million diabetes-related deaths per year. The estimated prevalence of diabetes among psychiatric in-patients in the UK is 10%, and the increased risk of poor diabetes-related physical health outcomes among people with a severe mental illness (SMI) is detrimental to their mental health and social functioning. This article uses two fictitious case vignettes inspired by experience in an in-patient psychiatric facility to explore the challenges of managing diabetes in this setting in the UK. The relationship between psychiatric disorders, their symptoms and management of physical health conditions, including health promotion, monitoring and pharmacological therapy, creates a challenge in the optimal management of diabetes. Recommendations for improving diabetes management in people with SMI are divided into those requiring insulin and those not requiring insulin.
This study examines the influence of fish oil on brain amyloidogenesis in hyperglycaemic Alzheimer’s disease animal models, emphasising the potential of omega-3 fatty acids in fish oil to prevent the development of Alzheimer’s disease. Thirty males of Wistar rats were divided into five groups: 1) control rats (NS); 2) rats supplemented with 3 g/kg of fish oil (NS+FO3); 3) rats injected via intraperitoneal (i.p) with Streptozotocin-Lipopolysaccharide (STZ-LPS); 4) rats injected with STZ-LPS (i.p) and supplemented with 1 g/kg of fish oil (STZ-LPS+FO1), and 5) rats injected with STZ-LPS (i.p) and supplemented with 3 g/kg of fish oil (STZ-LPS+FO3). The cerebral brain was extracted for examination, and the αβ precursor protein (APP) level was measured using an immunoassay kit, while αβ 42 expression was evaluated using immunohistochemistry staining. Brain amyloidosis-related genes were quantified using real-time Polymerase Chain Reaction (PCR). The results revealed that fish oil supplementation significantly increased APP levels and reduced αβ 42 accumulations in STZ-LPS rats. Moreover, the Apolipoprotein E, ε4 isoform (ApoE-4) and Beta-site APP-cleaving enzyme 1 (Bace-1) genes were downregulated while the Low-density lipoprotein receptor-related protein 1 (Lrp-1) gene was upregulated in STZ-LPS rats treated with fish oil, thereby elucidating the impact of fish oil on diminishing αβ buildup in the brain. Therefore, this study contributes to a growing body of evidence supporting dietary interventions as adjunctive strategies for the prevention or delay of Alzheimer’s disease progression in metabolic dysfunction.
Necrotising otitis externa is a serious infective condition with significant risk of complications and a profound impact on patients’ quality of life.
Methods
A quantitative descriptive study was undertaken using epidemiological data from the National Health Service Hospital Episode Statistics database and other national databases. Data correlating with reported cases 2002-2024 were compiled and analysed.
Results
The national incidence of necrotising otitis externa has demonstrated a sustained increase 2002-2024. The 30 per cent incidence drop during the coronavirus disease 2019 pandemic may be attributable to reduced exposure to risk factors, reduced contact between susceptible patients and health professionals and pandemic-related deaths of at-risk populations. There remains a strong correlation between growths in necrotising otitis externa incidence, the ageing population and national incidence of diabetes mellitus. These are all projected to continue to rise. Antibiotic resistance is not a significant contributing factor.
Conclusion
This study demonstrates several significant trends, offering a strong foundation for deeper exploration in future studies.
Previous studies on the association between fruit juice consumption and type 2 diabetes remain controversial, which might be due to heterogeneity in the polygenic risk score (PRS) for type 2 diabetes. We examined the association between fruit juice and type 2 diabetes by PRS for type 2 diabetes. We investigated whether fruit juice influences type 2 diabetes risk differently among individuals with varying genetic risks. Data from the Japan Multi-Institutional Collaborative Cohort (J-MICC) study, a cross-sectional study of 13 769 Japanese individuals was used for our analysis. The primary exposure was the frequency of fruit juice, categorised as do not drink, less than 1 cup per day or more than 1 cup per day. We selected PGS002379, a PRS for type 2 diabetes developed using East Asian populations. The primary outcome was physician-diagnosed type 2 diabetes, reported by participants. The consumption of fruit juice was significantly inversely associated with type 2 diabetes in the group with a high PRS for type 2 diabetes (OR: 0·78, 95 % CI: 0·65, 0·93 for < 1 cup/d and OR: 0·54, 95 % CI: 0·30, 0·96 for > 1/d), but this association was not observed in the low PRS group. Fruit juice consumption was inversely associated with type 2 diabetes, especially in genetically high-risk populations for type 2 diabetes.
The composite dietary antioxidant index (CDAI) has been identified as a critical factor in the pathogenesis of certain inflammatory diseases. The study aimed to investigate the relationship between CDAI and Helicobacter pylori infection using cross-sectional design. In this study, participants from the 1999–2000 National Health and Nutrition Examination Survey were analysed using logistic and Cox regression analyses to assess the associations between H. pylori infection and CDAI, encompassing vitamin A, vitamin C, vitamin E, carotene, Zn, Se and Cu. The results demonstrated a negative correlation between CDAI scores and H. pylori infection, revealing a non-linear relationship between the odds of H. pylori infection and CDAI as a continuous variable. Subsequently, a two-sample Mendelian randomisation study was conducted utilising genome-wide association study summary statistics to explore the causal relationship between antioxidant levels and H. pylori infection. We found that the intake of Cu was a protective factor in the occurrence of H. pylori infection but did not support a causal association between circulating Cu levels and H. pylori infection. The prevalence of H. pylori infection was found to be elevated among individuals of older age, lower education levels, limited socio-economic status, smokers, diabetes and those with hypertension. The study suggests that higher CDAI is linked to decreased odds of H. pylori infection, and further prospective studies are needed to confirm the association. Our findings may have significant implications for the prevention and management of H. pylori-related diseases.