Background: Hemoplasmas represent the type of bacteria that infect red blood cells, potentially leading to various health impacts, including changes in blood parameters. The close interaction between hemoplasma and red blood cells results in cell damage through immune-related and other unspecified mechanisms. Even with a strong immune response and antibiotic treatment, affected animals are likely to remain chronic carriers once clinical symptoms have subsided. These microorganisms were previously documented in sheep and other small ruminants worldwide. Aim: Since there is a lack of research on the link between Mycoplasma infection and blood parameters, our aim was to investigate how Mycoplasma infection affects these blood parameters. In addition, the study conducted in Bosnia and Herzegovina represents the first documented research of hemoplasma infection in goats within this region. Methods: In this research, 20 Alpine goats were sampled to investigate the presence of hemoplasma using polymerase chain reaction (PCR) analysis. Sequences of the 16S rRNA gene fragments were identified subsequently. The effect of Mycoplasma ovis (M. ovis) infection was observed on the following hematological parameters: Red blood cell count (RBC), hematocrit (HCT), hemoglobin (HGB), mean cell volume (MCV), mean cell hemoglobin, mean cell hemoglobin concentration, Reticulocyte count, and white blood cell (WBC). Effect on white blood cell differentiation, absolute white blood cell counts, platelet count, and mean platelet volume were also investigated. Results: PCR analysis confirmed the presence of Mycoplasma spp. in 7 out of the 20 blood samples. Sequencing of the 16S rRNA gene fragments revealed that all positive samples were identified as M. ovis. The research findings highlighted potential effects on blood parameters in infected goats. Goats infected with M. ovis exhibited higher mean levels of HGB and HCT compared to uninfected goats. However, there were no statistically significant differences in RBC counts between infected and uninfected groups. The study also noted significantly higher WBC counts in goats without M. ovis infection. Conclusion: 35% of animals tested positive for M. ovis. Our study’s findings showed notable differences in hematological parameters between goats infected with M. ovis and those that were not infected.

AIM To analyse the impact of age and body mass index (BMI) on dual-energy X-ray absorptiometry (DXA) scan results in postmenopausal women. METHODS The study included 100 postmenopausal women who underwent the DXA procedure, out of which 50 had a normal BMI and 50 were overweight/obese. Data that were examined included age, BMI, T-score of the lumbar region and the femoral neck, as well as bone mineral density (BMD). Correlation results were presented as Pearson's correlation coefficient (r). RESULTS The T2-score and BMD2 were significantly lower in older patients compared to younger ones (p=0.008 and p=0.007, respectively). Post hoc test results showed that the T2-score and BMD2 were significantly lower in patients ≥71 years of age compared to patients ≤59 years of age (p=0.006 and p=0.005, respectively). Also, T1- and T2-scores, as well as BMD1 and BMD2, were significantly higher in overweight/obese patients (p< 0.001 and p=0.003; p< 0.001 and p=0.002, respectively). The correlation between BMI and the T1-score was moderate (r=0.429), between BMI and the T2-score weak (r=0.348), between BMI and BMD1 moderate (r=0.431), and between BMI and BMD2 weak (r=0.344). CONCLUSION Our study showed that both age and BMI are important factors affecting DXA procedures and should be taken into account with each postmenopausal woman individually in everyday practice.

BACKGROUND Ventilator-associated pneumonia (VAP) rates are higher in low- and middle-income countries (LMICs) than in high-income countries (HICs). RESEARCH QUESTION Could differences in ventilator bundle adherence, ventilation practices, and critical care staffing be driving variations in VAP risk between LMICs and HICs? STUDY DESIGN AND METHODS This secondary analysis of the multicenter, international CERTAIN study included mechanically ventilated patients at risk for VAP from eleven LMICs and five HICs. We included oral care, head-of-bed elevation, spontaneous breathing assessments, and sedation breaks in the ventilator bundle. Staffing was assessed by the number of physicians and nurses per bed. Multivariable analyses were adjusted for severity, baseline characteristics, and checklist implementation. The primary outcome was VAP development. RESULTS Among 2,253 patients, 1,755 were from LMICs and 498 from HICs. Compared to HICs, patients from LMICs were younger, had lower comorbidity burden, and were less severely ill. Lower country income level was independently associated with VAP development (aOR 2.11; 95% C.I., 1.37-3.24). Ventilator bundle adherence was not significantly associated with VAP. Increased total duration of ventilation was associated with an increased risk of VAP (aOR 1.04; 95% C.I., 1.03-1.05), while higher nursing (aOR 0.88; 95CI 0.79-0.98) and physician staffing ratios (aOR 0.69; 95% C.I., 0.50-0.87) were associated with lower VAP rates. INTERPRETATION Patients in LMICs have a twofold higher risk of VAP, independent of bundle adherence. Prolonged mechanical ventilation was an independent predictor of VAP, while higher staffing ratios were associated with decreased risk for VAP development. Unmeasured factors like infrastructure and infection control practices may explain the higher VAP rates in LMICs.

Abstract Human activities cause a global loss of soil microbiome diversity and functionality. One way to reverse this trend is through microbiota transplants, but the processes determining merger outcomes are not well understood. Here, we investigated the roles of habitat filtering and microbiota origin on microbiome development upon mergers, with the hypothesis that native strains are better adapted to their own habitat and will outcompete non-native ones in niche colonization. To test this, we contrasted community development in soil microcosms between two taxa-diverse microbiota originating from either topsoil [SoilCom (SC)] or freshwater lake [LakeCom (LC)], and a defined mixture of 21 soil bacteria (SynCom). When inoculated separately, SC and LC showed similar taxa and colonization patterns contributing to community growth and decline within the soil microcosms. SynCom transplants to either SC or LC under renewed growth conditions permanently altered their community trajectories, and slightly further converged their taxa compositions. Levels of SynCom members in both resident backgrounds decreased from initial 50–80% to below 1% within 2 months. Merged as well as non-merged communities resembled natural soils in comparison to over 81 000 publicly available soil, sediment, and lake microbiomes. Our results show that habitat filtering is dominant over microbiota taxa origin in determining transplant outcomes. Even though the proliferation of SynCom transplants remained limited, their capacity to influence community merger trajectories long term opens new paths for soil microbiome engineering.

Considering our previous experience in the design of new cholinesterase inhibitors, especially resveratrol analogs, in this research, the basic stilbene skeleton was used as a structural unit for new carbamates designed as potentially highly selective butyrylcholinesterase (BChE) inhibitors with excellent absorption, distribution, metabolism, excretion and toxicity ADMET properties. The inhibitory activity of newly prepared carbamates 1–13 was tested toward the enzymes acetylcholinesterase (AChE) and BChE. In the tested group of compounds, the leading inhibitors were 1 and 7, which achieved excellent selective inhibitory activity for BChE with IC50 values of 0.12 ± 0.09 μM and 0.38 ± 0.01 μM, respectively. Both were much more active than the standard inhibitor galantamine against BChE. Molecular docking of the most promising inhibitor candidates, compounds 1 and 7, revealed that stabilizing interactions between the active site residues of BChE and the ligands involve π-stacking, alkyl-π interactions, and, when the carbamate orientation allows, H-bond formation. MD analysis confirmed the stability of the obtained complexes. Some bioactive resveratrol-based carbamates displayed complex-forming capabilities with Fe3+ ions as metal centers. Spectrophotometric investigation indicated that they coordinate one or two metal ions, which is in accordance with their chemical structure, offering two binding sites: an amine and a carboxylic group in the carbamate moiety. Based on the obtained in silico, experimental and computational results on biological activity in the present work, new carbamates 1 and 7 represent potential selective BChE inhibitors as new therapeutics for neurological disorders.

As the volume of plastic waste from electrical and electronic equipment (WEEE) continues to rise, a significant portion is disposed of in the environment, with only a small fraction being recycled. Both disposal and recycling pose unknown health risks that require immediate attention. Existing knowledge of WEEE plastic toxicity is limited and mostly relies on epidemiological data and association studies, with few insights into the underlying toxicity mechanisms. Therefore, this study aimed to perform comprehensive chemical screening and mechanistic toxicological assessment of WEEE plastic-associated chemicals. Chemical analysis, utilizing suspect screening based on high-resolution mass spectrometry, along with quantitative target chemical analysis, unveiled numerous hazardous compounds including polyaromatic compounds, organophosphate flame retardants, phthalates, benzotriazoles, etc. Toxicity endpoints included perturbation of morphological phenotypes using the Cell Painting approach, inflammatory response, oxidative stress, and endocrine disruption. Results demonstrated that WEEE plastic chemicals altered the phenotypes of the cytoskeleton, endoplasmic reticulum, and mitochondria in a dose-dependent manner. In addition, WEEE chemicals induced inflammatory responses in resting macrophages and altered inflammatory responses in lipopolysaccharide-primed macrophages. Furthermore, WEEE chemicals activated the nuclear factor erythroid 2-related factor 2 (Nrf2) pathway, indicating oxidative stress, and the aryl hydrocarbon receptor (AhR). Endocrine disruption was also observed through the activation of estrogenic receptor-α (ER-α) and the induction of anti-androgenic activity. The findings show that WEEE plastic-associated chemicals exert effects in multiple subcellular sites, via different receptors and mechanisms. Thus, an integrated approach employing both chemical and toxicological methods is essential for comprehensive assessment of the toxicity mechanisms and cumulative chemical burden of WEEE plastic-associated chemicals.

Background: Rescue stenting (RS) is a bailout strategy for failed thrombectomy. Optimal platelet inhibition strategy after RS remains unclear. Objectives: We aimed to describe and compare different platelet inhibition strategies during/after RS. Design: Retrospective cohort study across 34 international centers. Methods: Patients with large vessel occlusion and RS after failed thrombectomy (2019–2023) were included. Periprocedural and postprocedural platelet inhibition strategies were described and compared, focusing on glycoprotein IIb/IIIa (GPIIb/IIIa) inhibitors, single antiplatelet therapy (SAPT), and dual antiplatelet therapy (DAPT). We assessed the effects of platelet inhibition strategy and potentially covariates on the primary outcome of 90-day modified Rankin Scale (mRS) using ordinal shift analysis with proportional odds models. Results: RS was performed in 589 patients (mean age 67.9 years, 60.8% male). Numerous combinations of platelet inhibitors were administered. Periprocedural GPIIb/IIIa inhibitors were used in 61.5% of patients. Postprocedural DAPT was administered to 80.5% and SAPT to 13.3%. Functional independence (mRS 0–2) was achieved in 40.7%, while 26.3% died within 90 days. Stent occlusion occurred in 20.5%, with 67.6% of these occlusions within 24 h. Postprocedural stent-occlusion was independently associated with worse functional outcome at 90 days (OR 4.1, 95% CI 2.3–7.2, p < 0.001). No significant association between periprocedural GPIIb/IIIa inhibitors, and 90-day mRS or stent occlusion was found. Postprocedural SAPT was associated with worse functional outcomes (adjusted odds ratio (aOR) 2.4, 95% CI 1.1–5.0, p = 0.02), higher mortality (aOR 2.1, 95% CI 1.05–4.0, p = 0.03), and increased stent occlusion rates (aOR 4.8, 95% CI 2.3–9.7, p < 0.001) compared to postprocedural DAPT. Symptomatic intracranial hemorrhage occurred in 6.8% of patients, with no significant difference between antiplatelet regimens. Conclusion: Extensive heterogeneity exists in platelet inhibition strategies following RS. Stent occlusion is associated with worse clinical outcomes, and the first 24 h post-RS are critical for stent patency. Compared to SAPT, DAPT was associated with better functional outcome, lower mortality, and lower stent occlusion rates. Plain language summary When clot removal for stroke fails and a stent is placed, different blood thinner treatments affect risk of stent blockage and outcomes When doctors try to remove a blood clot during a stroke but are unsuccessful, they sometimes place a stent to reopen the blocked artery—a procedure called “rescue stenting.” After placing a stent, patients need blood-thinning medications to prevent the stent from becoming blocked again. However, the best way to manage these medications is unclear. In this study, we looked at 589 patients from 34 hospitals around the world who had rescue stenting between 2019 and 2023. We compared different strategies for using blood thinners, including strong drugs given during the procedure and either one (“single”) or two (“dual”) blood thinners given afterward. We found a lot of variation in how doctors used these medications. Using a strong blood thinner during the procedure didn’t seem to change long-term recovery or the risk of the stent blocking. However, after the procedure, patients who were treated with two blood thinners did better than those who got only one. Patients on dual therapy were more likely to recover well, less likely to die, and less likely to have their stent block again. Importantly, most stent blockages happened within the first 24 hours after the procedure, and patients with stent blockages did worse, highlighting the 24h period as critical for blood thinner treatment.