Genes, Vol. 15, Pages 532: Resistome, Virulome, and Clonal Variation in Methicillin-Resistant Staphylococcus aureus (MRSA) in Healthy Swine Populations: A Cross-Sectional Study
Patricia Poeta
This cross-sectional study investigates the methicillin-resistant Staphylococcus aureus (MRSA): its prevalence, antimicrobial resistance, and molecular characteristics in healthy swine populations in central Portugal. A total of 213 samples were collected from pigs on twelve farms, and MRSA prevalence was assessed using selective agar plates and confirmed via molecular methods. Antimicrobial susceptibility testing and whole genome sequencing (WGS) were performed to characterize resistance profiles and genetic determinants. Among the 107 MRSA-positive samples (83.1% prevalence), fattening pigs and breed...
Source: Genes - April 24, 2024 Category: Genetics & Stem Cells Authors: Vanessa Silva Adriana Silva Raquel Barbero Mario Romero Rosa del Campo Manuela Cani ça Rui Cordeiro Gilberto Igrejas Patricia Poeta Tags: Article Source Type: research
Molecules, Vol. 29, Pages 1939: Fractionation of Carlina acaulis L. Root Methanolic Extract as a Promising Path towards New Formulations against Bacillus cereus and Methicillin-Resistant Staphylococcus aureus
In this study, the fractionation of methanol extract from the root was conducted. Four fractions (A, B, C, and D) were obtained and tested against a range of bacteria and fungi. The results showed promising antibacterial activity, especially against Bacillus cereus, where the minimal inhibitory concentration (MIC) was determined to be equal to 0.08 mg/mL and 0.16 mg/mL for heptane (fraction B) and ethyl acetate (fraction C), respectively. In the case of the methicillin-resistant Staphylococcus aureus (MRSA) ATCC 43300 strain, the same fractions yielded higher MIC values (2.5 and 5.0 mg/mL, respectively). This was accompani...
Source: Molecules - April 24, 2024 Category: Chemistry Authors: Sylwia Wnorowska Agnieszka Grzegorczyk Jacek Kurzepa Filippo Maggi Maciej Strzemski Tags: Article Source Type: research
Evaluation of omadacycline regimens for community-acquired bacterial pneumonia patients infected with < em > Staphylococcus Aureus < /em > by pharmacokinetic/pharmacodynamic analysis
J Chemother. 2024 Apr 22:1-8. doi: 10.1080/1120009X.2024.2343963. Online ahead of print.ABSTRACTOmadacycline is an FDA-approved agent for community-acquired bacterial pneumonia (CABP). The purpose of this study is to evaluate the effectiveness of omadacycline for treating CABP patients infected with Staphylococcus aureus, including Methicillin-Resistant Staphylococcus aureus (MRSA) and Methicillin-Susceptible Staphylococcus aureus (MSSA), using pharmacokinetic/pharmacodynamic (PK/PD) analysis. Monte Carlo simulations (MCSs) were performed by utilizing omadacycline pharmacokinetic (PK) parameters, minimum inhibitory concent...
Source: Journal of Chemotherapy - April 23, 2024 Category: Cancer & Oncology Authors: Gaoqi Xu Xin Liu Jiaqi Wang Yuqing Mei Dihong Yang Chaoneng He Like Zhong Junfeng Zhu Haiying Ding Luo Fang Source Type: research
Microbial keratitis in Southern Malawi: a microbiological pilot study
CONCLUSIONS: In a resource-poor setting, a CIM can be used to safely sample the cornea in patients presenting with suspected MK, enabling identification of causative microorganisms by culture and PCR. Although the microbiological spectrum found was limited to the dry season, these preliminary results could be used to guide empirical treatment.PMID:38653537 | DOI:10.1136/bmjophth-2024-001682 (Source: Herpes)
Source: Herpes - April 23, 2024 Category: Infectious Diseases Authors: Tobi F Somerville Shaffi Mdala Thokozani Zungu Moira Gandiwa Rose Herbert Dean Everett Caroline E Corless Nicholas A V Beare Timothy Neal Malcolm J Horsburgh Alistair Darby Stephen B Kaye Petros C Kayange Source Type: research
A woman in her fifties with a post-operative infection, generalised rash and organ failure
This article presents a case of a middle-aged woman who developed symptoms of toxic shock syndrome five days after elective breast cancer surgery, with high fever, multiorgan failure and a characteristic desquamation of the palms.INTERPRETATION: Toxic shock syndrome is a potentially lethal, toxin-mediated disease. Symptoms develop quickly, within hours. Early recognition and appropriate surgical management, intensive care and antibiotics are therefore important to reduce mortality and sequelae.PMID:38651709 | DOI:10.4045/tidsskr.23.0623 (Source: Tidsskrift for den Norske Laegeforening)
Source: Tidsskrift for den Norske Laegeforening - April 23, 2024 Category: General Medicine Authors: Naima Borg Tahri Berit Gravdehaug Nazli Bahrami Laurens Reitsma Source Type: research
Identification of small molecule inhibitors of penicillin-binding protein 2a of methicillin-resistant Staphylococcus aureus for the therapeutics of bacterial infection
In conclusion, the results suggest alpha-mangostin as a promising candidate for inhibiting PBP2a. Further, extensive studies are warranted to explore its clinical applications.PMID:38650157 | DOI:10.14715/cmb/2024.70.3.6 (Source: Cellular and Molecular Biology)
Source: Cellular and Molecular Biology - April 23, 2024 Category: Molecular Biology Authors: Anwer Razique Source Type: research
Antibacterial effect and biocompatibility of silver nanoparticle-coated bone allograft substitutes
This study aimed to coat bone allografts with silver nanoparticles and assess their antibacterial activity and biocompatibility compared to uncoated bone allografts. In this study, the bone allografts were coated with varying concentrations of silver nanoparticles (5 mg/l, 10 mg/l, and 50 mg/l) through a simple adsorption technique. Subsequently, the coated samples underwent characterization using SEM, FTIR, EDS, and XRD. The Minimal Inhibitory Concentration (MIC) of the silver nanoparticles was determined against Staphylococcus aureus and Streptococcus mutans. Bacterial growth inhibition was evaluated by measuring turbidi...
Source: Cellular and Molecular Biology - April 23, 2024 Category: Molecular Biology Authors: Sanna Hadi Othman Omar Source Type: research
Thin layer chromatography-direct bioautography guided isolation of β-sitosterol from the leaves of < em > Capparis fascicularis < /em >
In this study, the leaves of C. fascicularis were extracted with 80% aqueous methanol, and the extract's fractions were screened for antimicrobial activity against Staphylococcus aureus ATCC 25923 using a broth micro-dilution assay. The hexane fraction was the most active, with a minimum inhibitory concentration (MIC) of 512 µg/mL. TLC-DB and flash column chromatography of the hexane fraction resulted in the isolation of β-Sitosterol for the first time from C. fascicularis. The compound was characterised using NMR and HRMS.PMID:38651505 | DOI:10.1080/14786419.2024.2345753 (Source: Natural Product Research)
Source: Natural Product Research - April 23, 2024 Category: Biochemistry Authors: Linda Muwanya Gugu F Sibandze Meshack N Dludlu Sandile B Simelane Source Type: research
Identification of small molecule inhibitors of penicillin-binding protein 2a of methicillin-resistant Staphylococcus aureus for the therapeutics of bacterial infection
In conclusion, the results suggest alpha-mangostin as a promising candidate for inhibiting PBP2a. Further, extensive studies are warranted to explore its clinical applications.PMID:38650157 | DOI:10.14715/cmb/2024.70.3.6 (Source: Mol Biol Cell)
Source: Mol Biol Cell - April 23, 2024 Category: Molecular Biology Authors: Anwer Razique Source Type: research
Antibacterial effect and biocompatibility of silver nanoparticle-coated bone allograft substitutes
This study aimed to coat bone allografts with silver nanoparticles and assess their antibacterial activity and biocompatibility compared to uncoated bone allografts. In this study, the bone allografts were coated with varying concentrations of silver nanoparticles (5 mg/l, 10 mg/l, and 50 mg/l) through a simple adsorption technique. Subsequently, the coated samples underwent characterization using SEM, FTIR, EDS, and XRD. The Minimal Inhibitory Concentration (MIC) of the silver nanoparticles was determined against Staphylococcus aureus and Streptococcus mutans. Bacterial growth inhibition was evaluated by measuring turbidi...
Source: Mol Biol Cell - April 23, 2024 Category: Molecular Biology Authors: Sanna Hadi Othman Omar Source Type: research
Deinococcus wulumuqiensis R12 synthesized silver nanoparticles with peroxidase-like activity for synergistic antibacterial application
Biotechnol J. 2024 Apr;19(4):e2300584. doi: 10.1002/biot.202300584.ABSTRACTThe use of a combination of several antibacterial agents for therapy holds great promise in reducing the dosage and side effects of these agents, improving their efficiency, and inducing potential synergistic therapeutic effects. Herein, this study provides an innovative antibacterial treatment strategy by synergistically combining R12-AgNPs with H2O2 therapy. R12-AgNPs were simply produced with the supernatant of an ionizing radiation-tolerant bacterium Deinococcus wulumuqiensis R12 by one-step under room temperature. In comparison with chemically ...
Source: Biotechnology Journal - April 23, 2024 Category: Biotechnology Authors: Jingjia Liu Nan Zhang Bowen Shen Liling Zhang Zhidong Zhang Liying Zhu Ling Jiang Source Type: research
Ersin Arslan City Hospital, Department of Neurosurgery, Gaziantep, T ürkiye
CONCLUSION: The results obtained in the present study reveal that in case of implant-dependent infection, the first sample taken can be checked for slime factor, and if there is infection with slime factor-negative bacterium, treatment without removing the implant may be recommended. S. aureus was used in the study because it is the most common cause of implant-related infection at surgical sites. Further studies using different bacterial species are needed to reach a definitive conclusion.PMID:38650565 | DOI:10.5137/1019-5149.JTN.43753-23.1 (Source: Turkish Neurosurgery)
Source: Turkish Neurosurgery - April 23, 2024 Category: Neurosurgery Authors: Hasan Turkoglu Emrullah Cem Kesilmez Kutsal Devrim Secinti Ilke Evrim Secinti Burak Kucuk Murat Aral Recep Eken Zafer Yuksel Source Type: research
Evaluation of omadacycline regimens for community-acquired bacterial pneumonia patients infected with < em > Staphylococcus Aureus < /em > by pharmacokinetic/pharmacodynamic analysis
J Chemother. 2024 Apr 22:1-8. doi: 10.1080/1120009X.2024.2343963. Online ahead of print.ABSTRACTOmadacycline is an FDA-approved agent for community-acquired bacterial pneumonia (CABP). The purpose of this study is to evaluate the effectiveness of omadacycline for treating CABP patients infected with Staphylococcus aureus, including Methicillin-Resistant Staphylococcus aureus (MRSA) and Methicillin-Susceptible Staphylococcus aureus (MSSA), using pharmacokinetic/pharmacodynamic (PK/PD) analysis. Monte Carlo simulations (MCSs) were performed by utilizing omadacycline pharmacokinetic (PK) parameters, minimum inhibitory concent...
Source: Journal of Chemotherapy - April 23, 2024 Category: Cancer & Oncology Authors: Gaoqi Xu Xin Liu Jiaqi Wang Yuqing Mei Dihong Yang Chaoneng He Like Zhong Junfeng Zhu Haiying Ding Luo Fang Source Type: research
