The interference of O.C.T. (Optimum Cutting Temperature) embedding compound with the determination of estrogen and progesterone receptor analysis in rabbit uterus cytosol and human breast cancer tissue was investigated. It was determined that O.C.T. Compound reduces binding in rabbit uterus cytosol at concentrations greater than 1%. Hormone receptor binding greatly was reduced in human breast cancer tissues from O.C.T. embedded tissues when compared with the untreated tissue of the same patients. Progesterone receptor binding was affected more strongly than estrogen binding.
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http://dx.doi.org/10.1093/ajcp/82.1.89 | DOI Listing |
Phytomedicine
October 2024
State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau SAR, China. Electronic address:
Background: Gut microbiota plays an important role in multiple human physiological processes and an imbalance in it, including the species, abundance, and metabolites can lead to diseases. These enteric microorganisms modulate immune homeostasis by presenting a myriad of antigenic determinants and microbial metabolites. Medicinal and food homologous (MFH) plants, edible herbal materials for both medicine and food, are important parts of Traditional Chinese Medicine (TCM).
View Article and Find Full Text PDFChem Biomed Imaging
December 2024
Experimental Solid State Physics Group, Department of Physics, Imperial College, Exhibition Road, SW72AZ London, U.K.
Mesoporous silica nanoparticles (MSNPs) are promising nanomedicine vehicles due to their biocompatibility and ability to carry large cargoes. It is critical in nanomedicine development to be able to map their uptake in cells, including distinguishing surface associated MSNPs from those that are embedded or internalized into cells. Conventional nanoscale imaging techniques, such as electron and fluorescence microscopies, however, generally require the use of stains and labels to image both the biological material and the nanomedicines, which can interfere with the biological processes at play.
View Article and Find Full Text PDFGeorgian Med News
October 2024
3Department of Biology, College of Education for Pure Science, University of Mosul, Ninevah, Iraq.
The aim of this work is to investigate the effects of L-AMB (Amphociene) on liver and lung tissues in adult mice, and the role of vitamin D3 in reducing its side effects. Amphotericin B (AMB), a polyene macrolide antibiotic, is used to treat serious fungal infections and leishmaniasis. It may cause increased serum aminotransferase and hyperbilirubinemia due to interference with hepatic cytochrome P450.
View Article and Find Full Text PDFEur J Cancer Prev
October 2024
Department of Biostatistics, Epidemiology and Environmental Health Sciences, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, Georgia, USA.
The relationship between folate and the risk of cancer remains undetermined partially due to the dynamic changes in folate intakes at the population level caused by folic acid fortification implemented in the USA and other countries. To control for the interference from fortification, we assessed the relationship between folate and lung cancer death (LCD) risk among a national cohort established years before folic acid fortification. We followed up 14 528 adults aged 19 years or older who participated in the National Health and Nutrition Examination Survey (1988-1994) on average for 14 years.
View Article and Find Full Text PDFNaunyn Schmiedebergs Arch Pharmacol
December 2024
Internal Medicine IX - Department of Clinical Pharmacology and Pharmacoepidemiology, Heidelberg University, Medical Faculty Heidelberg, Heidelberg University Hospital, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany.
Zosuquidar (LY335979) is a widely used experimental P-glycoprotein (P-gp) inhibitor, which is commended as very potent but also as very specific for P-gp. In this in vitro and in silico study, we demonstrated for the first time that zosuquidar also inhibits organic cation transporters (OCT) 1-3, albeit less potently than P-gp. This still has to be kept in mind when zosuquidar is used to inhibit cellular efflux of P-gp substrates that are concurrently transported into the cells by OCTs.
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