A quality-management program (QMP) has been launched at the Naval Medical Research Institute Toxicology Detachment to support the planning, assessment, interpreting, and reporting of toxicology study data. The QMP conforms to the intent of the Good Laboratory Practice established by the Food and Drug Administration and the Environmental Protection Agency for regulatory compliance. The biomedical data necessary to characterize the toxicity of materials of interest to the Navy are used to formulate occupational and environmental health-hazard evaluations and risk assessments, including appropriate exposure limits for personnel for Navy-specific circumstances of exposure. The goal of the QMP is to help management and investigators ensure the quality and integrity of the data collected in laboratory animal toxicology studies. These data are used to reduce or eliminate potential health risks from exposure to toxicants during Navy operations. The primary purpose of the risk-reduction program is to help ensure readiness to accomplish the military mission. This article briefly reviews the need for the QMP and the military relevance of the quality-assurance requirements. The pros and cons of establishing the QMP are discussed, and examples of specific research projects and programs that support the need for a quality management program are presented. Aspects of integrating the QMP program to ensure compliance with Good Laboratory Practice are reviewed, and the value of the improvements in the quality of data from the Naval Medical Research Institute/Toxicology Detachment is summarized.
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http://dx.doi.org/10.1080/105294198277924 | DOI Listing |
Langmuir
January 2025
Ningbo Key Lab of Polymer Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 315211 Ningbo, P. R. China.
Solar-driven desalination technology is currently an important way to obtain freshwater resources. Significantly, porous materials are used as substrate materials of interface solar evaporator, and their specific impact of water transport property and thermal management during evaporation is worth exploring. In this paper, poly(vinyl alcohol) (PVA) sponges were prepared by a chemical foaming method, adjusted the PVA polymerization degree, and formaldehyde-hydroxyl ratio to regulate the pore size, and polypyrrole (PPy) was grown in situ on the surface skeleton of PVA sponge to construct a new interfacial solar evaporator (PPy/PVA) with different pore structures.
View Article and Find Full Text PDFOrg Lett
January 2025
State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
Highly asymmetric (3+3) annulation of diaziridines with oxiranes via C-N bond cleavage in diaziridine was achieved under 10 mol % of chiral copper(II) complex as the catalyst under mild reaction conditions. With Cu(OTf) as the Lewis acid and C-symmetric imidazolidine-pyrroloimidazolone pyridine as the ligand, diverse tetrahydro-[1,3,4]-oxadiazines were obtained by stereospecific C-N/C-O bond formation in moderate to good yields (up to 93% yield) and high diastereo- (>20:1 dr) and enantioselectivities (up to 92% ee). The catalytic cycle and stereochemical model were proposed by DFT calculation.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
January 2025
Qingdao Qingli Environmental Protectionquipmen Co, LTD, Jiaozhou, 266300, China.
With the growing demand for nickel in the stainless steel and battery industries, conventional methods of extracting nickel from ores face challenges such as high production costs and environmental concerns. This study proposes a new process for the recovery of nickel metal and the production of nickel-iron alloys from nickel-bearing scrap. The reduction rates of nickel and iron oxides were investigated by optimizing the roasting temperature, time, and C/O ratio, and the process was optimized using response surface methodology (RSM).
View Article and Find Full Text PDFJ Org Chem
January 2025
State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Engineering, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China.
This paper presents a new strategy for the construction of the chiral 4-chromene skeleton. A series of chiral 2-trifluoromethyl-4-(indol-3-yl)-4-chromenes were synthesized in moderate to good yields (60-92%) with excellent enantioselectivity (up to 97% ee) through the palladium-catalyzed asymmetric condensation of 2-chromenes and indoles. These trifluoromethylated, stereochemically rich building blocks hold potential value in medicinal chemistry.
View Article and Find Full Text PDFPediatr Blood Cancer
January 2025
Hong Kong Children's Hospital, Kowloon, Hong Kong SAR, China.
Paediatric relapse/refractory T-cell acute lymphoblastic leukaemia (T-ALL) is notoriously difficult to treat. This group of heavily pre-treated patients needs effective agents that can rapidly control the disease while not having significant toxicity. Homoharringtonine (HHT) has been widely used in children with acute myeloid leukaemia, but there is little information on T-ALL.
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