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Acetyl-11-keto-beta-boswellic acid (AKBA), the major component of Boswellia serrata , exhibits anti-inflammatory activities. This in vitro study investigated the protective effects of AKBA against lipopolysaccharide (LPS)-induced cardiac dysfunction. In this study, the H9C2 cardiomyocytes were pretreated with AKBA (2.5, 5, and 10  μ M for 24 h), and then cotreated with LPS for another 24 h. The MTT assay, ELISA test kits, and quantitative real-time PCR analysis assessed the cell viability, levels of proinflammatory factors (IL- β , IL-6, TNF- α , and PGE2), and the gene expression of IL- β , IL-6, TNF- α , iNOS, and COX-2, respectively. The nitric oxide (NO) and thiol levels were also measured using a biochemical assay. The results indicated that LPS exposure markedly reduced cell viability and total thiol content, but increased the inflammatory cytokines, NO metabolites, and gene expression of proinflammatory mediators in H9C2 cells. AKBA pretreatment significantly altered the mentioned factors induced by LPS. Our results demonstrated that AKBA might be a promising therapeutic agent for treating sepsis-related cardiac dysfunction in the future., Competing Interests: The authors declare that they have no conflicts of interest., (Copyright © 2022 Danial Taherzadeh et al.)

Background: In correctional facilities, sexually transmitted infections (STIs) are common, are often asymptomatic, and may lead to adverse outcomes such as infertility and increased HIV acquisition. In January 2020, testing for Neisseria gonorrhoeae (GC) and Chlamydia trachomatis (CT) was paired with routine urine pregnancy tests among women entering a large county jail to increase testing and detection of STIs., Methods: The results of all GC/CT urine tests in the Dallas County Jail were collected from October 2019 to February 2020. Medical records were reviewed to collect demographic factors and to determine the positivity of GC/CT infections, time to results, and time to treatment., Results: With paired testing, monthly testing rates increased 4.7-fold among incarcerated females from 125 to 589 tests without substantial change for males (174 to 163). The number of infections detected in females increased from 25 (7%) of 359 to 62 (5.3%) of 1171 for GC and 42 (11.2%) of 374 to 129 (11%) of 1177 for CT without a significant difference in GC (P = 0.23) or CT positivity (P = 0.66). Younger women (≤25 years) had the highest rates of CT (18.8% [66/350]), whereas GC was highest among women aged 31 to 35 years (9.9% [32/321]). Average time to results and treatment were 5.8 and 1.8 days, respectively., Conclusions: Pairing GC/CT testing with routine urine pregnancy tests resulted in a large (4.7-fold) increase in the number of STI tests and a comparable increase (3.7- to 4.6-fold) in the number of infections detected. Future efforts should focus on incorporating STI testing into routine jail practices and expediting treatment to further improve outcomes in this vulnerable population., Competing Interests: Conflict of Interest and Sources of Funding: The authors have no conflicts of interest to share. A.E.N. receives the following grant funding relevant to this project: NIH R34 DA045592 and U01 DA 053039., (Copyright © 2021 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Sexually Transmitted Diseases Association.)

Silver nanoparticles (AgNPs) have been biosynthesised through the extracts of Ribes khorassanicum fruits, which served as the reducing agents and capping agents. Biosynthesised AgNPs have been found to be ultraviolet-visible (UV-vis) absorption spectra since they have displayed one surface plasmon resonance peak at 438 nm, attesting the formation of spherical NPs. These particles have been characterised by UV-vis, field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, Fourier transform infrared spectroscopy, and transmission electron microscopy analysis. The formation of AgNPs at 1.0 mM concentration of AgNO 3 has resulted in NPs that contained mean diameters in a range of 20-40 nm. The green-synthesised AgNPs have demonstrated high antibacterial effect against pathogenic bacteria (i.e. Staphylococcus aureus , Escherichia coli , and Pseudomonas aeruginosa ). Biosynthesising metal NPs through plant extracts can serve as the facile and eco-friendly alternative for chemical and/or physical methods that are utilised for large-scale nanometal fabrication in various medical and industrial applications.

Background: Red blood cell distribution width (RDW) is a quantitative measure of variability in the size of circulating erythrocytes. It has been recently identified as a prognostic marker in several diseases including acute pancreatitis (AP). In this systematic review the prognostic value of RDW in predicting mortality of AP patients will be assessed. Methods: PubMed, Scopus, EMBASE, and ISI databases were searched until September 2016 using the following search strategy: (pancreatitis OR pancreatitides) AND (RDW OR "red cell distribution width" OR "red blood cell distribution width" OR anisocytosis). Four authors independently reviewed the retrieved articles. Studies were included if they had evaluated the association between RDW value and mortality of acute pancreatitis patients. Case reports, comments, letters to the editor, reviews, study protocols, and experimental studies were not included. Data abstraction and quality assessment for the included studies was independently performed by two authors. Quality of studies was assessed using Oxford Center for Evidence-Based Medicine checklist for prognostic studies. Data were synthesized qualitatively, and a meta-analysis was performed on the diagnostic performance of RDW to predict mortality in AP patients. Results: Seven studies (976 patients) were included in the systematic review. Six studies reported a statistically significant association between RDW value and mortality. Meta-analysis was performed on four studies (487 patients) using a bivariate model and a summary receiver operating characteristic (sROC) curve was plotted with an area under the curve (AUC) of 0.757. The pooled diagnostic odds ratio (DOR), sensitivity and specificity was 19.51 (95% CI: 5.26-72.30), 67% (95% CI: 51%-80%) and 90% (95% CI: 73%-96%), respectively. Conclusion: RDW is an easy to use and an inexpensive marker with a moderate prognostic value to predict death in AP patients. Clinicians should be more alert when a patient with AP has an increased RDW. Investigation of possible combinations of other prognostic markers with RDW is recommended.

Biofilms are layers of microbial cells growing on an interface and they can form highly complex structures adapted to a wide variety of environmental conditions. Biofilm streamers have a small immobile base attached to the support and a flexible tail elongated in the flow direction, which can vibrate in fast flows. Herein we report numerical results for the role of the periodical movement of biofilm streamers on the nutrient uptake and in general on the solute mass transfer enhancement due to flow-induced oscillations. We developed what to our knowledge is a novel two-dimensional fluid-structure interaction model coupled to unsteady solute mass transport and solved the model using the finite element method with a moving mesh. Results demonstrate that the oscillatory movement of the biofilm tail significantly increases the substrate uptake. The mass transfer coefficient is the highest in regions close to the streamer tip. The reason for substrate transfer enhancement is the increase in speed of tip movement relative to the surrounding liquid, thereby reducing the thickness of the mass transfer boundary layer. In addition, we show that the relative mass transfer enhancement in unsteady conditions compared with the rigid static structure is larger at higher flow velocities, and this relative increase favors a more flexible structure., (Copyright © 2012 Biophysical Society. Published by Elsevier Inc. All rights reserved.)