BMC Research Notes

Background. Journal clubs (JCs) are a popular education format. Interest in studying their impact is high, and authors often report positive results related to subjective parameters. Objective assessments of effectiveness are limited and contradictory. In this paper, we share our experience and describe our journal club effectiveness. Methods. We conducted a prospective cohort study within our online journal club. Meetings followed a discussion-based format and were held via Zoom, with timing and topics determined by voting in the club Telegram chat. Enrolment occurred in waves and included an application, entry test, and interview. During each recruitment wave, both club members (treatment group) and applicants (control) completed an admission test assessing knowledge of evidence-based medicine and statistics. Results. The JC currently comprises 27 members. Over the past year, 76 meetings were held, with 75% of participants grading their experience with 9 or 10 on a ten-point scale. Multivariate analysis demonstrated non-significantly results (SMD = 0.19 (95% CI 0.004; 0.38), p = 0.046) among participants. However, in other adjusted models, differences between groups were not statistically significant (p > 0.05). Conclusion. While the analysis of the subjective outcomes is consistent with findings from previous studies, the objective outcomes remain inconclusive. Further research is needed to refine the methodology for the organization and evaluation of journal clubs.

Occupational ocular injuries are a preventable yet neglected public health problem, particularly in low- and middle-income countries. Maintenance workers are exposed to diverse ocular hazards daily, yet compliance with protective measures is consistently poor. A descriptive cross-sectional study was conducted among 85 maintenance workers at the Maintenance and Essential Services Organization (MESO) of Kwame Nkrumah University of Science and Technology (KNUST), Ghana, recruited through stratified convenience sampling across seven occupational sections. A structured questionnaire assessed knowledge of ocular hazards and protective equipment, attitudes toward ocular safety, and safety practices. Data were analyzed using IBM SPSS version 26 (IBM Corp., Armonk, NY, USA); chi-square and Fishers exact tests assessed associations (p < 0.05). Participants were predominantly male (84/85, 98.8%), with a mean age of 44.5 {+/-} 10.4 years. Overall knowledge was good (mean 9.40 {+/-} 1.59 out of 11), but attitude and practice scores were average (2.78 {+/-} 0.92 and 3.27 {+/-} 0.93, respectively). Most workers correctly identified goggles and face shields as protective, but only about half recognized that ordinary sunglasses and spectacles offer inadequate protection. Although 97.6% (83/85) recognized the need for ocular protection, only 7.1% (6/85) reported consistent protective eyewear use, and fewer than half (45.9%, 39/85) had received formal ocular safety training. Routine general protective equipment use was significantly associated with ocular protection use (Fishers exact test, p = 0.011). Sand and dust particles were the leading causes of injury and only 25% (5/20) of injured workers sought formal care. Workers demonstrated good knowledge but poor attitudes and practices toward ocular safety, suggesting that knowledge alone does not translate into protective behaviour even within a relatively well-resourced institutional setting. Findings suggest that limited access to task-appropriate protective eyewear may represent an important institutional barrier. Institutional PPE supply and section-specific safety training are essential to bridge this knowledge-practice gap.

Evidence-based medicine (EBM) concepts are difficult for medical students to grasp. We developed a Python-Streamlit web application providing interactive visualizations to enhance EBM education. Preliminary use with first year medical students demonstrated high engagement and improved conceptual understanding, supporting the feasibility of integrating interactive, web-based tools into EBM curricula.

Background. A primary constraint on the capacity of EMS programs to meet industry demand is psychomotor instruction and verification, requiring direct observation of each student by a qualified evaluator. Whether AI video analysis can relieve it is untested; none has been applied to EMS skill examination or compared with human examiners. Objective. To quantify human EMS evaluator inter-rater reliability and evaluate an AI video-analysis platform against it. Methods. In a prospective, fully crossed study, five certified EMS evaluators and an AI platform independently scored identical video-recorded EMT performances of cervical collar application (n=15), bag-valve-mask (BVM) ventilation (n=14), and medical assessment (n=15) on dichotomous checklists with critical-failure criteria. Agreement was assessed at item, score, and decision levels using Fleiss' kappa, Krippendorff's alpha, Gwet's AC1, and ICC(2,1)/ICC(2,k). Results. Human item agreement was moderate (kappa 0.409 to 0.467), as was single-rater reliability (ICC(2,1) 0.539 to 0.694), against good panel reliability (ICC(2,k) 0.854 to 0.919). Recorded pass/fail agreement was fair (kappa 0.297 to 0.388) and critical-failure agreement near zero for two skills (kappa 0.028, 0.119). AI alignment tracked rubric observability rather than task complexity: r = 0.857 (collar, exceeding every human), -0.173 (BVM), 0.664 (medical), and it was most lenient on two skills. Conclusions. Human evaluators are an imperfect standard, especially on critical failures. The AI was a legitimate additional rater where checklist items were discrete and visually verifiable, but not where credit required judging continuous quantities such as ventilation rate, volume, or suction duration. Defensible uses are formative and archival, not summative. These results reflect an early, non-specialist configuration: a baseline, not a limit.

BackgroundHair tools such as hairbrushes and combs allow for various styling options to produce desired hairstyles among various people. However, there is the risk of they serving as fomites for infection and contamination especially among people in close habitation. ObjectivesThis study therefore decided to investigate the trend of microbial populations on these hair grooming tools in universities such as KNUST to inform student hygiene practices and disease prevention strategies. Methods30 students were randomly selected for the study, and swab samples from different hairbrushes and combs were taken for microbial investigation. Microbial isolates were identified based on their morphological and biochemical characteristics. Determination of efficacy of different cleaning methods for hair tools was also done. ResultsThe study found an average bacterial and fungal count of 7.4x102 CFU/ml and 4.6x103 CFU/ml, respectively. The bacterial isolates suspected included Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus sp., Bacillus subtilis, and Corynebacterium sp. The fungal isolates included Aspergillus species, Penicillium sp., Rhizopus sp., Neurospora sp., Colletotrichum gloeosporioides and Curlvularia sp. Correlation analysis showed higher bacterial numbers significantly associated with the presence of hair diseases such as dandruff (p=0.046). Water and detergent were found to be the most effective method of eliminating microbial content from hairbrushes and combs. ConclusionThis study uncovered a variety of microbes on KNUST students combs and hairbrushes, which is evident of microbial contamination. While these numbers are relatively low, this study highlights the need for students to still follow good hygiene procedures and implement efficient cleaning techniques of hair tools, as they may still serve as an ideal environment to harbor and transfer microbes

Objectives: This study aimed to examine physiotherapy students reaction and learning, following Simulation Based Education (SBE) during a Cardiorespiratory module. A further aim was to see if any learning translated into clinical placement. Design: A mixed methods research design consisting of a questionnaire (Phase1) after the activity which was underpinned by the Kirkpatrick model of evaluation. This was followed by a focus groups (Phase 2) after completion of clinical placement. Participants: 92 final year physiotherapy students at a single institution were eligible to participate in the SBE session with n=81 (88%) students completing the survey, and 8 students participating across 2 focus group sessions. Results: Survey: Over 80% of students strongly agreed on a positive initial reaction to SBE. Learning yielded a 76% and above response of strongly agree in all areas except confidence. Students valued SBE as a preferred learning and teaching strategy and wanted more. They welcomed SBE as a supplement but not substitute for clinical placement. Students felt skills learned could be transferred into all areas of clinical practice,, namely communication and decision making. Conclusion: Students rated SBE positively with development of transferable non-technical skills. Reaction to SBE was high in terms of relevance, engagement and satisfaction. Self-perceived confidence, although positive, was the comparatively lowest scoring of the domains. Students advocated SBE as a supplement rather than a substitute for clinical placement preferring a hybrid approach. Contribution of the Paper: Adds to the positive body of evidence which already exists towards SBE, especially in the development of non-technical skills. Suggestions are made that SBE cant make students feel fully confident in preparation for clinical placement. While students in this study expressed that they wanted more SBE and earlier, this paper found that students would not advocate SBE replacing clinical placement.

Background. Designing high-quality Objective Structured Clinical Examination (OSCE) stations is a time-consuming process. Generative artificial intelligence (AI) represents a promising path to accelerate content creation by automating the generation of scenarios. A growing number of AI tools is now available for this purpose. Objective. To assess the variability between generative AI models in their ability to produce OSCE stations in the field of paediatrics. Methods. A structured prompt was developed based on the French national OSCE guidelines for medical education. Five distinct AI models were provided with this prompt, alongside the neonatal jaundice chapter from the French pediatric reference textbook, to generate 6 complete OSCE stations. Results. Prompt compliance was high for ChatGPT 5.1, ChatGPT 5.2, Gemini 3.0 Pro, and Claude Opus 4.5, while it was lower for Grok 4.1. Expert-rated quality was generally high, with few factual errors or missing information across models. However usability differed significantly between models. This was also true for several quality dimensions such as checklist clarity, embedding of checklist answers within vignettes, and ease of standardized patient formation. ChatGPT 5.1 required the most revisions and Gemini most often rated usable as is. Significant inter-model differences were observed in diagnostics, only with ChatGPT 5.1 sampling all three neonatal jaundice categories. Contextual variables showed systematic narrowing across models. Clinical grid density was consistent (10-12 items per station), but thematic distribution differed markedly. Soft skills coverage varied significantly across models (p=0.002), none of them consistently representing all communication competency domains. Conclusion. Large language models can generate structurally compliant OSCE stations, but surface compliance conceals substantive inter-model differences in diagnostic coverage, contextual diversity, and soft skills representation, that compromise content validity. No model currently meets the criteria for unsupervised deployment in a summative assessment bank. The choice of model carries pedagogical implications and expert curation remains essential before integration into high-stakes assessment workflows.

Background Playing-related musculoskeletal disorders are highly prevalent among musicians, yet no validated The aim of this study was to translate and culturally adapt the MPIIQM into Japanese and to examine its psychometric properties in students of higher music education institutions (HMEIs). Methods Forward-backward translation followed ISPOR guidelines, with linguistic validation through pilot testing. Psychometric evaluation was conducted in instrumental music majors enrolled at nine HMEIs in Japan, combining in-person and online surveys. Exploratory factor analysis, Cronbach's , and Pearson correlations with the Brief Pain Inventory (BPI), QuickDASH, and QuickDASH Performing Arts Module (PAM) were computed in symptomatic respondents (n = 48). Symptom prevalence in the full HMEIs sample (n = 226) was compared with national data (Ministry of Health, Labour and Welfare in Japan, 2022) using binomial tests with Holm correction. Results Exploratory factor analysis yielded a two-factor structure (pain intensity; pain interference) explaining 76.8% of the variance. Cronbach's was .864 (pain intensity), .890 (pain interference), and .903 (total). The pain intensity subscale correlated strongly with BPI pain severity (r = .71), and the pain interference subscale correlated with the QuickDASH PAM (r = .62). Test-retest reliability could not be computed because only 9 of 30 retest respondents met inclusion criteria. HMEIs students reported significantly higher prevalence than national peers in 25 of 41 symptoms, most markedly stiff shoulders and low back pain. Conclusions The MPIIQM-J demonstrated adequate structural validity, internal consistency, and convergent validity, and is expected to be useful in educational and clinical settings.

Background: Exclusive breastfeeding may protect infants against common infections and support healthy growth and development. Working mothers may face constraints on exclusive breastfeeding arising from work schedules, separation from their infants, and inadequate breastfeeding support. National evidence on the individual, healthcare-related, and contextual factors associated with exclusive breastfeeding among working Ghanaian mothers appears to remain limited. Design: Cross-sectional secondary analysis. Setting: Nationally representative survey covering urban and rural communities across all 16 administrative regions of Ghana. Participants: The analysis included 620 currently working mothers whose youngest living infants were aged 0-5 completed months and lived with them. The complete-case multivariable analysis included 619 mother-infant pairs. Primary outcome measure: Current exclusive breastfeeding, defined using the standard 24-hour infant-feeding indicator. Infants were classified as exclusively breastfed when they received breast milk without water, formula, animal milk, other liquids, or solid or semi-solid foods during the preceding day or night. Oral rehydration solution, vitamins, minerals and prescribed medicines were permitted. Aim: To estimate the prevalence of exclusive breastfeeding and examine its individual, healthcare-related and contextual correlates among working mothers of infants aged 0-5 months in Ghana. Methods: Birth Recode data from the 2022 Ghana Demographic and Health Survey were analysed. Unweighted frequencies and survey-weighted percentages described the study population. Design-adjusted Wald tests assessed bivariate associations. Survey-weighted binary logistic regression estimated adjusted odds ratios (AORs) and 95% confidence intervals (CIs), accounting for sampling weights, primary sampling units, and strata. Results: The survey-weighted prevalence of exclusive breastfeeding was 54.3% (95% CI: 49.2-59.3). Ethnicity, mode of delivery, region, and community poverty appeared to be statistically significant in the bivariate analyses. In the adjusted model, region was jointly associated with exclusive breastfeeding (p = 0.004). Mothers in the Northern (AOR = 4.93; 95% CI: 1.5-16.17) and Savannah (AOR = 4.22; 95% CI: 1.08-16.41) regions had higher odds than mothers in the Western Region. Mothers in low-education communities had lower odds than those in high-education communities (AOR = 0.54; 95% CI: 0.30-0.98). Although Guan mothers had higher odds than Akan mothers, the overall association with ethnicity was non-significant, and the estimate appeared imprecise. Maternal age, individual education, religion, parity, wealth, infant sex, antenatal care, postnatal care, and residence were not independently associated with exclusive breastfeeding. Conclusion: The prevalence estimate suggests that slightly more than half of working mothers exclusively breastfed their infants. Regional and community differences appeared more pronounced than those associated with most measured individual characteristics. Regionally responsive breastfeeding support and practical community education may contribute to improved coverage. Workplace recommendations require further evidence because employment conditions were not measured directly. Keywords: Exclusive breastfeeding; working mothers; infant feeding; maternal employment; regional inequalities; community education; Ghana; 2022 Ghana Demographic and Health Survey; survey-weighted analysis.

Bacterial melanin are macromolecules found in nature that provide a wide range of biological functions, including pigmentation, resistance to radiation, scavenging of free radicals, thermoregulation and protected from oxidative stress and harmful heavy metals. The melanin is crucial for pathogenesis and bacterial survival in a variety of circumstances, and they can also influence how bacteria interact with other organisms. Usually, bacteria produce the melanin is either black or brown colour. The produced melanin has excellent properties like antimicrobial, antioxidant, photoprotective and antibiofilm. This is a report on Corynebacterium amycolatum melanin-producing bacteria isolated from the marine sediment of Thiruvanmiyur beach in Tamil Nadu, India. Corynebacterium amycolatum was screened using tyrosine basal broth (TBB), and UV-visible spectroscopy, FTIR, and SEM were used to analyse the extracted melanin. The non-pathogenic nature of the Cornynebacterium amycolatum strain was verified through antibiotic sensitivity profiling. The cosmetic potential was evaluated using antioxidant and SPF assays. Corynebacterium amycolatum predominantly uses the DOPA pathway for melanin production, was confirmed using kojic acid inhibitor study. The in vitro studies on mouse fibroblast cell line (L929) and in vivo studies on zebra fish embryos shows non-cytotoxicity using this melanin, even in lower concentration confirms its potential to use in cosmetic formulation. This research aims to demonstrate that bacterial melanin is safe for the environment and has qualities that make it safer and more effective in cosmetics.

AimThe present study investigated the significance of iron in regulating megakaryopoiesis, by a diet-based intervention in an in-vivo model. MethodsMale C57BL/6 mice, aged 4-5 weeks were fed on varying iron diets. Following sacrifice, blood samples collected in EDTA tubes were used to analyse haematological parameters, and iron content of liver and spleen was assessed by biochemical analyses. Megakaryocyte-erythroid progenitors (MEPs) were isolated from bone marrow by magnetic bead-based selection. RNA isolated from bone marrow cells and MEPs were used for gene expression analyses, and RNA Sequencing to identify differentially expressed genes (DEGs) and associated pathways. ResultsMice fed on an iron-deficient diet had reduced hepatic iron content after 5 weeks (p < 0.01), while both the hepatic and spleen iron content increased after 3 weeks in mice on an iron-rich diet (p < 0.05) and developed iron overloading. Hb and RBC counts increased (p < 0.05) in iron-rich mice and decreased in iron-deficient mice (p < 0.05), which also showed elevated platelet counts (p < 0.01). This may be explained by increased expression of Gata1, Tal1 (p < 0.01) Mds1 and Pdpk1 (p < 0.05) in bone marrow cells from iron-deficient mice. MEPs isolated from these mice showed elevated expression of genes associated with megakaryocytic differentiation, platelet functions, and genes encoding TGF-{beta}R1 and Smad 2,3 and 4. ConclusionsIron deficiency may activate TGF-{beta} signalling and downstream Smad-mediated transcriptional programs within MEPs. This may promote a shift in lineage commitment towards megakaryopoiesis through elevated expression of megakaryopoiesis related genes.

Background: Despite several trials on the hematological outcomes of intravenous (IV) iron in pregnancy, only few have examined its effect on birth outcomes. We estimated the causal effect of IV-iron on moderate or severe anaemia and birth outcomes. Methods: Women presenting to routine antenatal care in Pakistan with haemoglobin <10 g/dL were eligible for treatment. We used target trial emulation (TTE) methodology to estimate the effect of IV-iron treatment within 14 days of anaemia identification, compared to no treatment, on anaemia status at follow-up. A modified TTE analysis examined birth outcomes at delivery for singleton pregnancies, including birthweight, size-for-gestational-age, and mortality. We conducted a separate TTE for each of five gestational-age periods and pooled the results of each TTE. Results: We screened 3115 pregnancies of which 1715 were eligible for IV-iron; 1043 participants were treated during pregnancy. Those who received IV-iron had half the risk of moderate or severe anaemia in pregnancy compared with no treatment (pooled relative risk (RR) 0.40; 95% confidence interval (CI): 0.27, 0.59). The pooled effect of IV-iron on stillbirth suggested an 83% risk reduction (95% CI 55-94%), and trends were similar for perinatal and neonatal mortality. Conclusion: IV-iron treatment improved haematological status in pregnant women and was associated with a large reduction in stillbirth. Given limited data from randomised trials regarding fetal death and treatment earlier in pregnancy, this study contributes important information to the potential benefit of IV-iron in contexts where anaemia and its sequelae are a major public health problem.

Planning husbandry tasks and experiments with Drosophila melanogaster requires converting a target date into development times that depend on the rearing temperature. This calculation needs to be done for each cross, genotype, and temperature, and the risk of error grows quickly. Available laboratory management tools let users register stocks, crosses, and track them, but they do not create schedules based on a clear, adjustable thermal model. To fill that gap, we developed DrosoTracker, a self-contained web application that works offline and predicts Drosophila development with a thermal summation model recalibrated through regression on data from Powsner (1935) (T0 = 11.78 {degrees}C, DD = 116.38 {degrees}C{middle dot}days, R{superscript 2} = 0.997). The model offers an optional two-level calibration driven by user observations. A wild-type strain first adjusts the model to the laboratorys own conditions. Then each genotype is calibrated against that reference using a random-effects shrinkage estimator that accounts for measurement error and between-batch variability. The model creates schedules for husbandry tasks, evaluates adult cohort survival with the Kaplan-Meier estimator and the log-rank test, and calculates sample size for lifespan studies using Schoenfelds formula. The quantitative components were checked against independent references, including Rs survival package and manual calculations. Ongoing work is focused on validating the calibrated model using cohorts specifically bred for this purpose. DrosoTracker runs entirely in the browser, stores data locally, and is available in English and Spanish.

Background: Health and administrative professionals in tertiary hospitals face high levels of occupational stress, mental illness, and multimorbidity. The integrated measurement of these multidimensional health aspects is essential for informing effective workplace health promotion strategies. Objective: To describe the general health status of federal public hospital staff and correlate the measured health dimensions to inform institutional health promotion initiatives. Methods: A cross-sectional, online survey study was conducted at Hospital Universitario dos Servidores do Estado (HUSE) between November and December 2025. Data collection was performed via online REDCap questionnaires covering sociodemographic profiles and validated instruments (SRQ-20, MIDAS, AUDIT, WHOQOL-BREF, PHI, WHOQOL-SRPB BREF, CBI, GPAQ, and EPSO). Descriptive statistics, comparisons across employment ties (permanent vs. contracted staff), and Spearman correlation matrices were calculated. Results: Among 197 accesses, 117 completed the informed consent, and 86 finished all questionnaires. Participants were predominantly female, aged 40 to 60 years, and Christian. Screening positivity was 25% for common mental disorders, 21% for headache-related disability, and 10% for harmful drinking. Burnout scores clustered in the second quartile, while quality of life, happiness, and spirituality scores were in the upper third. Median physical activity was 670 min/week. Mental symptoms (SRQ-20), headache (MIDAS), and burnout (CBI) correlated positively with each other and negatively with quality of life, happiness, spirituality, and institutional support (EPSO). Conclusion: The set of instruments proved feasible for situational health diagnosis among hospital staff. Although the sample size was limited in this baseline wave, the initiative fostered workplace health awareness, driving concrete initiatives, including an on-site functional gym and workplace vaccination campaigns.

Medical education in resource-limited settings faces significant challenges in providing diverse clinical exposure and fostering essential skills such as clinical reasoning, communication, and empathy. Due to the inability to afford immersive technologies such as virtual reality (VR) and Augmented Reality (AR), constrained by financial, infrastructural, and structural barriers, interactive simulation videos (ISV) constitute an innovative, cost-effective educational tool that can bridge the gap between theoretical knowledge and practical clinical experience, while enhancing student engagement and learning outcomes. This study aimed to assess the educational value and user experience of ISV as a supplementary tool in teaching medical semiology among medical students in Mozambique. A quantitative, descriptive, cross-sectional study was conducted among 4th-year medical students at Alberto Chipande University. Descriptive and inferential statistical analyses were performed, including a one-sample t-test to compare responses against a value. A total of 93 students participated in the study. The ISV was highly rated for realism (77.4%), relevance to training (74%), and usefulness of feedback (78.5%). Most students reported increased confidence in patient care (81.7) and found the digital patient credible and engaging (74.2). Overall mean scores across all domains were significantly higher than the neutral benchmark (p<0.05), indicating a positive perception of the tool. Students also expressed a strong willingness to recommend its integration into medical curricula. In conclusion, ISV represents a valuable and feasible pedagogical approach in medical education, particularly in low-resource settings. They enhance clinical reasoning, engagement, and confidence while providing scalable, standardized learning experiences. ISV holds strong potential as a complementary tool to bridge gaps in traditional medical training and improve educational equity.

Within our synchronous, online global health-focused upper-level microbiology course, we find that students struggle to translate learning to real-world applications. For examples, consider the recent measles outbreaks and major events such as the COVID-19 pandemic, which prompt many questions about how basic microbiological information is used by public health professionals. To address these points, we created a simulation-based curriculum that places students in an action role during an infectious disease outbreak. Our stand-alone curriculum walks through a historical measles outbreak that introduces outbreak investigation, community communication, and how these depend on microbiological knowledge. By using breakout groups, students have an opportunity to decide classifications, public messaging, and intervention metrics. We provide students with an outbreak investigation reference worksheet and interweave breakout rooms with didactic vignettes covering background information while revealing actual responses to outbreaks in conjunction with data obtained by responding scientists. Students synthesize material and apply it in real-time - allowing them to exercise critical thinking while bolstering relevance of microbiology and public health to popular media.

Several potentially potent anticancer drugs have been identified by in vitro evaluation, such as Andrographolide. These compounds show strong anticancer activity in vitro, but struggle to reach effective concentrations in the bloodstream when taken orally because they dissolve poorly in water or break down rapidly in the body. Bioenhancers, which are compounds that have potential to improve drug stability in the body, offer an alternative solution to overcome this limitation. Naringin and Quercetin have been identified as candidate bioenhancers, and have been hypothesized to potentially slow rapid first pass metabolism of poorly bioavailable drugs. Our work focuses on testing Naringin and Quercetin because they are flavonoids with therapeutic potential, due to their anti-inflammatory and antioxidant properties. Data from the hepatic microsomal assays performed on Naringin and Quercetin suggest moderate to proficient periods of stability in the body, with Naringin having 91.86% remaining, while Quercetin had 74.84% remaining. When administered alongside Andrographolide, a drug known to rapidly degrade in the body, Naringin raised its metabolic stability from 38.93% to 80.77% and on the other hand, Quercetin raised Andrographolide metabolic stability from 38.93% to 86.70%. In addition, plasma protein binding assays show the percentage of compounds available at the target site where Naringin was observed to be 49.32% bound and Quercetin found to be 50.14% bound, implying 50.68% of Naringin, and 49.86% of Quercetin available at the target site, respectively. This preliminary study explores whether Quercetin and Naringin could act as bioenhancers by remaining stable and available in plasma and by slowing the metabolism of poorly bioavailable drugs such as Andrographolide.

"Lactic acid bacteria (LAB) are one of the dominant groups of bacteria in the palm sap (Arenga pinnata) microbiome. Previous research in the sago palm sap production centers of Tomohon City (Kayawu, Pinaras, and Lahendong) has successfully identified various LAB species, including Lactobacillus casei, Lactobacillus plantarum, Lactobacillus brevis, Lactobacillus buchneri, Leuconostoc mesenteroides, and Leuconostoc sp. This study aims to identify LAB species in sago palm sap from a new location, namely the Wawo Plantation in Tomohon, and to evaluate their potential as natural antibacterial agents. Through 16S rDNA gene sequencing analysis, the isolates obtained were identified as belonging to the newly described genera Lacticaseibacillus and Lactiplantibacillus. Four promising isolates Lactiplantibacillus fabifermentans A1.4, Lacticaseibacillus casei B1.5, Lacticaseibacillus paracasei B1.6, and Lacticaseibacillus paracasei B3.5 were tested for their inhibitory activity against the enteric pathogens Salmonella sp. and Escherichia coli using the well diffusion method. The results showed that all isolates exhibited a strong spectrum of pathogen inhibition. The highest inhibitory activity against Salmonella sp. was demonstrated by the L. paracasei B1.6 isolate, with an inhibition zone of 21.25 mm, while optimal inhibition against E. coli was achieved by L. casei B1.5 at 11.0 mm. These findings confirm that the local BAL strain from Tomohon palm sap has great potential for large-scale development as a biopreservative in the food industry and as a functional probiotic agent"

Background: In the United States, several states have restricted sales of flavoured tobacco products, including popular menthol- and mint-flavoured Oral Nicotine Pouches (ONP). In response, tobacco companies introduced "unflavoured" ONP containing odorless synthetic cooling agents. Since these, in turn, have become targets of legislative bans, the tobacco industry may seek out flavourants with other sensory effects to increase the appeal of "unflavoured" ONP. Methods: Online merchants were searched for "unflavored" ONP marketed to consumers in jurisdictions with flavour bans. Sensory effects of aqueous extracts from identified "heat", "spicy" and "unflavoured" ONP were analyzed by Ca2+ microfluorimetry in HEK293 cells expressing the human heat/chili pepper flavourant (capsaicinoid) receptor, hTRPV1. ONP were analyzed for capsaicinoids and sweeteners by Liquid Chromatography/Mass Spectrometry (LC/MS). Results: A new category of "heat" or "spicy" ONP was identified, including products marketed as "unflavoured". Extracts from all these ONP robustly activated TRPV1, with "unflavoured" Lucy Heat the most potent. Chemical analysis demonstrated that Lucy Heat contained the synthetic capsaicinoid nonivamide at high levels (~675 microgram/pouch), while others contained mixtures of capsaicinoids (5-25 microgram/pouch) combined with other characterizing flavours (tropical, fruit). All tested ONP contained sweeteners. Conclusions: The tobacco industry continues to probe regulatory loopholes by claiming that newly introduced capsaicinoid flavourants and sweeteners in ONP do not represent characterizing flavours. This is contradicted by industry and regulatory determinations assigning characterizing flavour properties to these additives. The toxicological health risks of repeated capsaicinoid exposures due to ONP use, in combination with nicotine and other constituents, need to be assessed.

Kinema is a traditional fermented soybean food indigenous to the eastern Himalayan regions of Nepal and India. The fermentation process is primarily mediated by the bacterium Bacillus subtilis, which produces several bioactive compounds and enzymes with potential therapeutic applications. Considering the growing burden of cardiovascular diseases and the need for effective fibrinolytic agents for thrombolytic therapy, this study aimed to extract, partially purify, and evaluate the thrombolytic potential of kinemakinase derived from kinema prepared from white soybeans. Partial purification of the enzyme was achieved using ammonium sulfate precipitation. Thrombolytic activity was assessed in vitro using human blood clots, where three enzyme dilutions demonstrated clot lysis ranging from 66% to 68%, indicating considerable fibrinolytic potential. In silico analyses were also performed to investigate the structural and functional characteristics of the enzyme. The tertiary structure obtained from UniProt was modeled using the Robetta server and refined with GalaxyRefine. Docking with fibrin using ClusPro 2.0 and molecular dynamics simulations using iMODS confirmed favorable interaction and structural stability, while disulfide engineering enhanced protein stability. The findings suggest that kinema-derived kinemakinase may serve as a promising alternative thrombolytic agent, warranting further biochemical characterization and dosage optimization.