- Research Article
- 10.1016/j.compbiolchem.2026.108968
Can time-dependent optimal interventions reduce Salmonella spread? A multi-pathway ODE model using real data from EU.
- Aug 01, 2026
- Computational biology and chemistry
- Zubair Ahmad + 4 more +4
Publications from 2021 to 2026
Showing 10 of 19,613 papers
Can time-dependent optimal interventions reduce Salmonella spread? A multi-pathway ODE model using real data from EU.
Policies and initiatives to facilitate timely discharge from hospitals: a comparison of six European countries.
Timely discharge of patients who are clinically ready to be discharged from hospitals to the next point of care is a common health system challenge. Ensuring safe and effective discharge holds new urgency, given the backlogs and increased waiting times for inpatient services in many countries after the COVID-19 pandemic. The study aimed to identify policy options for addressing delayed discharges in six European countries (Denmark, France, Germany, the Netherlands, Norway, and Sweden), and to summarise available evidence on their effectiveness. Experts from the Health Systems and Policy Monitor (HSPM) network of the European Observatory on Health Systems and Policies and additional country experts identified relevant policies and initiatives up to November 2023. When evaluations were available, the experts also provided information on their findings. The data collection was followed by a qualitative, cross-country comparative analysis. A total of 17 policies or initiatives were identified in the study countries. Hospital-based initiatives included discharge planning and transitional care. Community and home care initiatives included municipal emergency beds, intensive home rehabilitation, and assisted discharge. Cross-sectoral initiatives ranged from coordination efforts at the regional and municipal levels to decision support systems and financial incentives. Several common factors or principles underpin many of the identified policies and initiatives. These include clarity of responsibility, effective planning and communication, resourcing of community-based capacity, possible unintended consequences of financial penalties, and the need to adopt a systemic approach.
Read moreComprehensive structural characterization of pectin, arabinan and galactan from Gentiana purpurea L. roots and their immunostimulatory effects
A novel diagnostic serum protein signature for pediatric inflammatory bowel disease.
Diagnostic delay is common in pediatric inflammatory bowel disease (PIBD), and fecal calprotectin (FCP) is often limited by challenges with sample collection. Therefore, we aimed to identify and validate a blood-based diagnostic protein signature of PIBD. Proteins were analyzed using proximity extension assay in plasma samples from treatment-naïve pediatric patients in a Swedish inception cohort referred for suspected inflammatory bowel disease (IBD) and validated in an independent Norwegian population-based pediatric inception cohort. Diagnostic performance was estimated by the area under the curve (AUC) with 95% confidence intervals (CIs). The discovery cohort included 58 patients with PIBD and 36 symptomatic controls without evidence of IBD, while the validation cohort consisted of 79 patients with PIBD and 37 symptomatic controls. In total, 154 proteins were examined. Univariable analyses identified 26 differentially regulated proteins for PIBD versus symptomatic controls in the discovery cohort (q < 0.05), whereas 29 proteins were differentially regulated in the validation cohort. Using regularized logistic regression, we identified a diagnostic model of 31 proteins that differentiated PIBD from symptomatic controls in the discovery cohort (AUC = 0.83; 95% CI: 0.74-0.90). The protein signature was further reduced to a clinically relevant biomarker consisting of high-sensitivity C-reactive protein (hsCRP) and seven other proteins with diagnostic capacity (AUC = 0.85, 95% CI: 0.78-0.92) outperforming hsCRP in the validation cohort (p = 0.006). We identified and validated a blood-based protein signature for PIBD with superior diagnostic performance compared to hsCRP. Given the challenges of fecal sample collection, further assay development may enable integration of these biomarkers into diagnostic pathways for PIBD. ClinicalTrials.gov identifier: NCT02727959.
Read morePermian-Triassic mass extinction and its aftermath in Boreal waters reflected by foraminifera from Spitsbergen
Can the Diabetes Eating Problem Survey-Revised (DEPS-R) reliably identify eating disorder diagnosis in women with type 1 diabetes?
The objective of this study was to evaluate the Diabetes Eating Problems Survey-Revised (DEPS-R) against the Eating Disorder Diagnostic Interview (EDDI). Specific aims were to (1) assess the ability of the DEPS-R to identify Diagnostic and Statistical Manual-5 (DSM-5) eating disorders, including sensitivity and specificity of the current DEPS-R cutoff ≥20 and (2) report the correlation of each item to the presence of any eating disorder. Baseline data from 293 women (14-35 years) with type 1 diabetes (T1D) and body image concerns enrolled in a multinational randomized controlled trial were examined. Receiver operating characteristic (ROC) analysis, univariate logistic regression and two-sample t-test were performed. The ROC analysis demonstrated good accuracy of the DEPS-R with an area under the curve (AUC) of 0.82 (95% CI 0.79-0.94). The cutoff of ≥20 yielded a sensitivity of 87.5% (95% CI 83.6%-91.3%) and a specificity of 60.4% (95% CI 54.8%-66.0%). Univariate logistic regression identified 12 items as significantly correlated with the presence of any eating disorder. The highest odds ratios (OR) were observed for items 9 (OR = 3.64), 8 (OR = 2.85), 13 (OR = 2.36), 14 (OR = 2.23), 15 (OR = 1.99) and 5 (OR = 1.99). This is the first study to investigate the ability of the DEPS-R to identify DSM-5 eating disorder diagnosis established via a diagnostic interview using a ROC-analysis. DEPS-R cutoff ≥20 correctly identified most cases with eating disorders but showed moderate specificity, considered acceptable as an initial screening tool for disordered eating. In clinical care, specific DEPS-R items may be emphasized to explore the presence of disordered eating behaviours and eating disorders.
Read moreSystematic review and meta-analysis of childhood exposure to antibiotics and the subsequent risk of IBD.
Antibiotic use in early childhood may alter the developing microbiome and has been proposed as a risk factor for inflammatory bowel disease (IBD). We conducted a systematic review to examine the association between childhood antibiotic use and subsequent risk of IBD. In a systematic literature search, we identified cohort and case-control studies reporting the association between antibiotic use (exposure age <1 to 17 years) and development of IBD. MEDLINE and EMBASE databases were searched from inception through December 31, 2024. Studies reporting a hazard ratio, odds ratio, or risk ratio (RR) were included. To account for heterogeneity, pooled estimates were calculated using the DerSimonian-Laird random-effects model. Estimates were adjusted for potential confounding as reported in the original studies. We identified 10 studies, of which 8 (n = 2783 cases) reported associations between childhood antibiotics and IBD risk. Additionally, 2 studies on Crohn's disease (CD) and 1 on ulcerative colitis were included in disease-specific analyses. In pooled analyses, antibiotic exposure compared with no exposure was associated with increased risk of IBD (RR, 1.42; 95% confidence interval [CI], 1.23-1.66), CD (RR, 1.59; 95% CI, 1.39-1.81), and ulcerative colitis (RR, 1.23; 95% CI, 1.08-1.40). Heterogeneity was low to moderate (I2 = 0%-35%), and funnel plots did not indicate publication bias (Egger's test, P = .12-.43). Adjustment for infections did not attenuate the association between childhood antibiotic exposure and IBD development. While causal interpretation should be cautious, childhood exposure to antibiotics was associated with an increased risk of later IBD, particularly for CD.
Read moreNeural and vascular cellular adhesion molecules are associated with cognitive function in patients with schizophrenia-spectrum disorders: A longitudinal study.
Schizophrenia patho-etiology may involve endothelial inflammation and blood-brain barrier (BBB) dysregulation with cellular adhesion molecules (CAMs) as important mediators. CAMs are essential for cellular integrity but can show increased levels in inflammation. Cognitive dysfunction precedes and exists independently of psychotic symptoms in schizophrenia patients. CAMs could impact cognition through influence on BBB integrity. To gain insights into disease mechanisms and potential therapeutic targets, we explored the relationship between CAMs protein levels and neurocognitive tests in schizophrenia-spectrum disorders in the BeSt InTro study. Seventy-one in- and out-patients underwent CAMs measurements and neuropsychological testing on a minimum of one time point: baseline, 6, 26, or 52weeks. Cognitive domains included working memory, processing speed, verbal abilities, executive functions, and overall cognition. CAMs analyzed were neural CAMs: junctional adhesion molecule (JAM-A) and neural cadherin (N-CAD); vascular CAMs: intercellular adhesion molecule (ICAM)-1, vascular adhesion molecule (VCAM)-1, mucosal addressin cell adhesion molecule (MADCAM), and platelet (P)-selectin from fasting blood samples. Linear mixed effects models, adjusted for age, sex, body mass index, smoking, education, and drug naivety, estimated CAMs effect on cognitive outcome measures. N-CAD levels correlated positively with overall cognition (p=0.002), working memory (p=0.034), and executive functions (p=0.0011). ICAM-1 levels correlated positively with overall cognition (p=0.037). Conversely, JAM-A levels correlated negatively with executive functions (p=0.021). Associations between CAMs (N-CAD, ICAM-1, JAM-A) and neurocognitive tests suggest CAMs may impact cognition in schizophrenia. Contrary to our hypothesis, most associations between CAMs levels and cognitive tests were positive. Future research on mechanisms is mandatory.
Read moreWell preserved versus severely impaired memory 10-44 years after temporal lobe epilepsy surgery: "How did the patients get there?"
This study aimed to identify factors influencing long-term memory outcomes after temporal lobe epilepsy surgery, focusing on patients with well-preserved functioning versus those with severe impairments. Ninety-nine patients underwent epilepsy surgery and completed neuropsychological assessments preoperatively (T1) and two years postoperatively (T2), with follow-up 10-44 years after surgery (T3). Memory scores were categorized as severely impaired (>2 SD below the mean) or good (≥ average). At T3, 46% of patients reported surgery-related memory decline and 9% reported later decline. Objectively, verbal memory was severely impaired in 21% and good in 14%, while figural memory was severely impaired in 34% and good in 12%. Continuous seizure freedom occurred in 45%, late seizure freedom in 24%, relapse in 11%, and ongoing seizures in 20%. Seizure-free patients performed better. Among those severely impaired in verbal memory at T3, 45% had declined by T2 and 20% declined later; among good performers, 79% improved late. For figural memory, 8% declined by T2 and 65% declined later; among good performers, 27% improved after surgery and 64% improved later. Surgical side, education, and age predicted outcomes. Many years after temporal lobe epilepsy surgery, 45% of patients achieved continuous seizure freedom and 20% late seizure freedom. Only 9% reported late memory decline. Verbal memory tended to decline shortly after surgery but showed recovery over time, whereas figural memory more often declined later. These patterns suggest late mechanisms of functional recovery, compensation, and reorganization.
Read moreAcute effects of copper exposure and predation risk in five coastal copepods.
Natural stressors, including predation risk, can affect the response of organisms to anthropogenic contamination. Copper, used as an antifouling agent, can affect non-target organisms. We tested for effects of excess copper on survival with and without predator cues in five species of coastal copepods. We exposed adult copepods to four copper concentrations (0-1350μgL-1, 48h) on an automated imaging platform and analysed the data using the reduced General Unified Threshold model for Survival (GUTS) to detect potential species differences in underlying toxico-kinetics and -dynamics. Calanoid copepods had elevated mortality during early copper exposure compared to a harpacticoid and a cyclopoid species. Species-specific dominant rate constants, which represents the time it takes for damage to reach a steady state, best explained the time-dependent toxicity. Over time, most predicted mortalities converged to a similar level regardless of species. Predation risk reduced mortality at the intermediate copper concentration, potentially explained by reduced copper bioavailability by binding of copper to kairomone molecules, or other intrinsic and extrinsic factors. Models like GUTS can reveal the underlying toxicity mechanisms and improve toxicity predictions in a multi-stressor world.
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