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Penicillin-binding protein 2 (PBP2), a vital protein involved in bacterial cell-wall synthesis, serves a target for β-lactam antibiotics. Acinetobacter baumannii is a pathogen notorious for multidrug resistance; therefore, exploration of PBPs is pivotal in the development of new antimicrobial strategies. In this study, the tertiary structure of PBP2 from A. baumannii (abPBP2) was elucidated using X-ray crystallography. The structural analysis demonstrated notable movement in the head domain, potentially critical for its glycosyltransferase function, suggesting that abPBP2 assumes a fully closed conformation. Our findings offer valuable information for developing novel antimicrobial agents targeting abPBP2 that are applicable in combating multidrug-resistant infections.
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http://dx.doi.org/10.1016/j.bbrc.2024.150368 | DOI Listing |
Memory
September 2025
Department of Psychological Science, University of Texas Rio Grande Valley, Edinburg, TX, USA.
This study used an odd (isolated) item inserted into a homogeneous serial list to investigate process differences between absolute- and relative-order judgments. The serial list consisted of eight names of people ordered in height. These were all male or female names except the fourth name which was of the opposite gender.
View Article and Find Full Text PDFPLoS One
September 2025
School of Medical Engineering, Xinxiang Medical University, Xinxiang, China.
Computer-aided diagnostic (CAD) systems for color fundus images play a critical role in the early detection of fundus diseases, including diabetes, hypertension, and cerebrovascular disorders. Although deep learning has substantially advanced automatic segmentation techniques in this field, several challenges persist, such as limited labeled datasets, significant structural variations in blood vessels, and persistent dataset discrepancies, which continue to hinder progress. These challenges lead to inconsistent segmentation performance, particularly for small vessels and branch regions.
View Article and Find Full Text PDFIEEE J Biomed Health Inform
September 2025
Intracranial aneurysms (ICA) commonly occur in specific segments of the Circle of Willis (CoW), primarily, onto thirteen major arterial bifurcations. An accurate detection of these critical landmarks is necessary for a prompt and efficient diagnosis. We introduce a fully automated landmark detection approach for CoW bifurcations using a two-step neural networks process.
View Article and Find Full Text PDFClin Interv Aging
September 2025
Party Committee Office, The Second Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China.
Objective: Living alone is becoming increasingly common among the elderly population, and there is a close relationship between living alone and chronic diseases in relation to depression. However, the interplay between them has not been fully investigated. This study aims to explore the role of the number of chronic diseases in the relationship between living alone and depressive symptoms among older adults in China.
View Article and Find Full Text PDFFront Psychol
August 2025
Department of Teacher Education, Taishan University, Tai'an, China.
Background: Past research has indicated the close connection between social media use and women's envy, but so far, no research has been conducted to exclusively examine the effect and mechanism of social media use on women's body-related envy.
Objective: To fill this gap, with TikTok as a representative example of video-based social media, four studies ( = 767) were conducted to explore whether and how social media use increases women's body-related envy, and the subsequent downstream consequences.
Method And Results: In Study 1a, we employed an online questionnaire survey and found that TikTok use had a significantly positive prediction on women's body-related envy.