Cells of Entamoeba histolytica accumulated K+ and extruded Na+ compared to the concentrations of those ions present in the growth medium. Pinocytic activity, measured by the uptake of horseradish peroxidase of 125I-polyvinylpyrrolidone, was high (up to 0.3 ml/ml cells per h). Upon addition of cytochalasin B, at a concentration (20 microM) that completely blocked pinocytosis, cells lost up to 40% of their Na+ content within 90 min; K+ content was not affected or increased slightly compared to control cells without the inhibitor. Cation loss was associated with cell shrinkage. The dose-response curves for the effects of cytochalasin B on pinocytosis and Na+ content were identical. These data provide direct evidence that pinocytosis is an important component of the homeostatic system for Na+.
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http://dx.doi.org/10.1016/0005-2736(85)90285-8 | DOI Listing |
AJNR Am J Neuroradiol
January 2025
From the University of Miami Department of Neurology (H.B.F., I.R., R.Y., A.A., M.S., Y.H., A.A., C.M.G., V.J.D.B., R.M.S., T.R., H.G., J.G.R., N.A.), Miami, FL, USA; University of South Florida Department of Neurology (D.Z.R. A.J.), Tampa, FL, USA.
Background And Purpose: Endovascular thrombectomy outcomes are impacted by changes in stroke systems of care. During the pandemic, SARS-CoV2 positive status had major implications on hospital arrival and treatment models of non-COVID related hospital admissions. Using the Florida Stroke Registry, we compared the rates of in-hospital death and discharge outcomes of patients treated with endovascular thrombectomy who tested positive for SARS-CoV2 infection during their hospitalization.
View Article and Find Full Text PDFJ Minim Invasive Gynecol
January 2025
Department of obstetrics and Gynecology at Yale New Haven Health System, Bridgeport, CT. Electronic address:
Study Objective: A desire for curriculum standardization in obstetrics and gynecology residencies has been identified. No prior investigation of educational experiences in Fellowship in Minimally Invasive Gynecologic Surgery (FMIGS) programs has been completed. The purpose of this study was to determine the state of FMIGS didactic education and the perceptions that fellowship directors and fellows have regarding a standardized curriculum.
View Article and Find Full Text PDFAntonie Van Leeuwenhoek
January 2025
Department of Marine Science and Technology, Fukui Prefectural University, Obama, Fukui, 917-0003, Japan.
A novel aerobic marine bacterium, FRT2, isolated from surface water of a fishing port in Fukui, Japan, was characterised based on phylogenomic and phylogenetic analyses combined with classical phenotypic and chemotaxonomic characterisations. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain FRT2 clustered with genus Leeuwenhoekiella. Closest relatives of FRT2 were Leeuwenhoekiella palythoae KMM 6264 and Leeuwenhoekiella nanhaiensis G18 with 16S rRNA gene sequence identities of 95.
View Article and Find Full Text PDFJ Food Sci Technol
January 2025
Institute of Food Science, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Böszörményi Street 138, Debrecen, 4032 Hungary.
Acacia honey was infused with basil, oregano, marjoram, dill, garlic or cinnamon at infusion rates of 0-5% by mass for a 6 months period. After removal of the infusates, macro and micro element concentrations were measured by Inductively Coupled Plasma Optical Emission Spectrometry. Total phenolic and flavonoid contents were determined spectroscopically.
View Article and Find Full Text PDFPeerJ
January 2025
Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Nanning, Guangxi, China.
Background: var. is a variety in the section of the genus of the family Theaceae which is native to Fangchenggang, Guangxi, China. To date, the genetic diversity and structure of this variety remains to be understood.
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