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http://dx.doi.org/10.1093/qjmed/hcr186 | DOI Listing |
J Clin Oncol
January 2025
German Breast Group, Neu-Isenburg, Germany.
Purpose: To assess trial-level surrogacy value for overall survival (OS) of the pathologic complete response (pCR) and invasive disease-free survival (iDFS) in randomized clinical trials (RCTs) for early breast cancer (BC).
Methods: Individual patient data of neoadjuvant RCTs with available data on pCR, iDFS, and OS were included in the analysis. We used the coefficient of determination from weighted linear regression models to quantify the association between treatment effects on OS and on the surrogate end points.
J Am Chem Soc
January 2025
Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States.
Spore germination in is initiated by a cascade of activities of several proteins that culminates in the activation of SleC, a cell-wall-processing enzyme. We report herein the details of the enzymatic activities of SleC by the use of synthetic peptidoglycan fragments and of spore sacculi. The reactions include the formation of 1,6-anhydromuramate─a hallmark of lytic transglycosylase activity─as well as a muramate hydrolytic product, both of which proceed through the same transient oxocarbenium species.
View Article and Find Full Text PDFAnal Chem
January 2025
Center for Devices and Radiological Health, U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, Maryland 20993, United States.
Non-targeted analysis (NTA) using high-resolution mass spectrometry without defined chemical targets has the potential to expand and improve chemical monitoring in many fields. Despite rapid advancements within the research community, NTA methods and data remain underutilized by many potential beneficiaries. To better understand barriers toward widespread adoption, the Best Practices for Non-Targeted Analysis (BP4NTA) working group conducted focus group meetings and follow-up surveys with scientists (n = 61) from various sectors (e.
View Article and Find Full Text PDFPlant Dis
January 2025
Tamil Nadu Agricultural University, Department of Plant Pathology, Coimbatore, Tamil Nadu, India;
Ashwagandha (Withania somnifera), enriched in alkaloids, steroidal lactones and saponins, is a valuable herb in Indian Ayurvedic medicine. During December 2023, Va-1 (Vallabh Ashwagandha-1) plants at ICAR -Central Tobacco Research Institute, Vedasandur, Tamil Nadu (10.53717ºN, 77.
View Article and Find Full Text PDFTransl Vis Sci Technol
January 2025
The Ohio State University College of Optometry, Columbus, OH, USA.
Purpose: Individuals with Down syndrome (DS) have reduced visual acuity (VA), even when wearing refractive correction. The relationship between refractive error and VA in adults with DS is explored.
Methods: Thirty adults with DS (age = 29 ± 10 years) were enrolled in a trial comparing clinical and objectively determined refractions.
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