Photomirex (8-monohydromirex) was administered to female Sprague-Dawley rats at dietary levels of 0.2, 1.0, 5.0, 25.0 and 125 ppm. Food intake and body weight gain were significantly depressed at the 125 ppm level in the 28- but not in the 90-day study. Significant alterations were observed in some hematological and biochemical parameters at the highest dietary level in the 90-day study. Photomirex residues accumulated in a dose-dependent manner in perirenal fat, liver, brain, kidney, and spleen. Dose-dependent histotoxic effects were observed in liver and thyroid at and above 1 ppm; hepatomegaly was observed at 25.0 and 125 ppm. These results indicate that photomirex was approximately five times more toxic than mirex in terms of liver histology. When these results are compared with those observed in an earlier study in the male rat, it is evident that the female is less susceptible to photomirex than the male.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3109/01480548009017837 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Can aortic valve calcium score predict a need for permanent pacemaker implantation after transcatheter aortic valve implantation?
Open Heart
January 2025
Department of Cardiology, Inserm U1096, Univ Rouen Normandie, CHU Rouen, Rouen, France
Introduction: Conductive disturbances requiring permanent pacemaker (PPM) implantation remain a major concern after transcatheter aortic valve implantation (TAVI).
Aims: To assess the impact of aortic valve calcium score (AVCS) on conductive disturbances requiring PPM after TAVI.
Methods: All patients who underwent TAVI with accessible AVCS from the preprocedural CT scan report were included in this retrospective single-centre study.
Sustainable Conversion of Corncob Biomass Waste into High Performance Carbon Materials for Detection of VOCs at Room Temperature.
Molecules
December 2024
Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Braamfontein 2050, South Africa.
The demand for reliable, cost-effective, room temperature gas sensors with high sensitivity, selectivity, and short response times is rising, particularly for environmental monitoring, biomedicine, and agriculture. In this study, corncob waste-derived activated carbon (ACC) was combined with CuO nanoparticles and polyvinyl alcohol (PVA) to fabricate ACC/PVA/CuO composites with CuO loadings of 5, 10, and 15 wt.%.
View Article and Find Full Text PDFInvestigation of the Thermal Stability and Hydrolytic Degradation Kinetics of Poly(Lactide-co-Glycolide) Melts.
AAPS PharmSciTech
January 2025
Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, Texas, USA.
Poly(lactide-co-glycolide) (PLGA) is widely used in a variety of long-acting injectables. However, its biodegradable nature creates potential chemical stability challenges during melt extrusion, where PLGA is exposed to elevated temperature (100-140 °C) for several minutes. This study evaluated the thermal stability of three PLGA grades (Resomer® 502, 502H, and 505) with varying molecular weights and chain-ends using a differential scanning calorimeter and twin-screw extruder.
View Article and Find Full Text PDFEvaluation of Glutathione T in the Human Brain Using J-Difference MRS at 3 T: Multicenter Multivendor Study.
NMR Biomed
February 2025
Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
The need to quantify brain glutathione (GSH) accurately by J-difference spectroscopy has stimulated assessment of the TE effects on GSH edited signals at the popular field strength 3 T. We performed multiple-TE J-difference MRS at two sites to evaluate the GSH T relaxation and TE dependence of the GSH signal resolution. Two 10-ms spectrally selective Gaussian editing RF pulses were implemented in 3 T MEGA-PRESS sequences at two sites having different vendors.
View Article and Find Full Text PDFBimetallic selenium/zinc oxide nanoparticles: biological activity and plant biostimulant properties.
AMB Express
January 2025
Department of Biology, College of Science & Arts at Khulis, University of Jeddah, Jeddah, 21959, Saudi Arabia.
Extracts of medicinal seeds can be used to synthesize nanoparticles (NPs) in more environmentally friendly ways than physical or chemical ways. For the first time, aqueous extract from unexploited grape seeds was used in this study to create Se/ZnO NPS utilizing a green technique, and their antimicrobial activity, cytotoxicity, antioxidant activities, and plant bio stimulant properties of the economic Vicia faba L. plant were evaluated.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!