Biomed Opt Express
KIOS Research Center, Department of Electrical and Computer Engineering, University of Cyprus, Nicosia, Cyprus.
Published: March 2017
The size-dependent spectral variations, predicted by Mie theory, have already been considered as a contrast enhancement mechanism in optical coherence tomography. In this work, a new spectroscopic metric, the bandwidth of the correlation of the derivative, was developed for estimating scatterer size which is more robust and accurate compared to existing methods. Its feasibility was demonstrated using phantoms containing polystyrene microspheres as well as images of normal and cancerous human colon. The results are very promising, suggesting that the proposed metric could be utilized for measuring nuclear size distribution, a diagnostically valuable marker, in human tissues.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5480567 | PMC |
http://dx.doi.org/10.1364/BOE.8.001598 | DOI Listing |
Myeloid-derived suppressor cells (MDSCs) are expanded in cancer patients, have an intrinsic immunosuppressive function, and thus may play a role in resistance to immunotherapy. Ulceration of the melanoma primary is associated with more aggressive disease and is an independent prognostic factor for melanoma-specific survival. However, the underlying factors contributing to this more aggressive phenotype are not completely understood.
View Article and Find Full Text PDFBraz J Microbiol
January 2025
Amity Institute of Biotechnology, Amity University Uttar Pradesh, Sector-125, Noida, Uttar Pradesh, 201313, India.
Methicillin-resistant Staphylococcus aureus (MRSA) is one of the leading causes of infection worldwide due to its antimicrobial resistance. Plant-derived essential oils (EOs) have undergone extensive observational and clinical research to explore their antimicrobial properties. The present study aimed to check mec A positive MRSA isolates using sequencing analysis, determination of chemical composition using gas chromatography-mass spectroscopy (GC-MS), antioxidant, and antimicrobial activity of Anethum graveolens and Piper betle EOs against the infectious agent MRSA.
View Article and Find Full Text PDFAbdom Radiol (NY)
January 2025
Samsun University, Samsun, Turkey.
Purpose: Metabolic dysfunction-associated steatotic liver disease (MASLD) and non-alcoholic fatty pancreatic disease (NAFPD) are metabolic diseases with rising incidence. Fatty infiltration may lead to dysfunction of the liver and pancreatic tissues. This study aims to quantify liver and pancreatic fat fractions and examine their correlation with disease severity in acute pancreatitis patients.
View Article and Find Full Text PDFJ Gen Virol
January 2025
Graduate Institute of Veterinary Pathobiology, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan, ROC.
RNA structures that are functionally important are defined as -acting RNA elements because their functions cannot be compensated for in trans. The -acting RNA elements in the 3' UTR of coronaviruses are important for replication; however, the mechanism linking the -acting RNA elements to their replication function remains to be established. In the present study, a comparison of the biological processes of the interactome and the replication efficiency between the 3' UTR -acting RNA elements in coronaviruses, including severe acute respiratory syndrome coronavirus 2, suggests that (i) the biological processes, including translation, protein folding and protein stabilization, derived from the analysis of the -acting RNA element interactome and (ii) the architecture of the -acting RNA elements and their interactomes are highly correlated with coronavirus replication.
View Article and Find Full Text PDFPostgrad Med J
January 2025
Department of Medical Biochemistry, Faculty of Medicine, Niğde Omer Halisdemir University, Niğde, 51000, Turkey.
Background: Epoxyeicosatrienoic acids (EETs) are closely associated with lipoprotein metabolism, and changes in lipid profiles potentially affect their levels and functions. Given the alterations in lipid metabolism after cholecystectomy, this study aimed to investigate the levels of four EET regioisomers (free and esterified) and lipid profiles in patients with cholelithiasis after laparoscopic cholecystectomy (LC) and explore correlations between these parameters.
Methods: This prospective study involved 40 patients with symptomatic cholelithiasis who underwent LC.
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