Results 1 to 10 of about 294 (116)
Urea transporter physiology studied in knockout mice
Frontiers in Physiology, 2012 In mammals, there are two types of urea transporters (UTs), UT-A and UT-B. The UT-A transporter is mainly expressed in kidney epithelial cells; while UT-B demonstrates a broader distribution in kidney, heart, brain, testis, urinary tract and other ...
Xuechen eLi +2 more
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Ammonia transport mediated by urea transporter A isoforms
Biology OpenABSTRACT Urea transporters (UTs) are a family of urea-selective channel proteins that play an essential role in the urine-concentrating mechanism of the mammalian kidney. In addition to urea, UT-A2 and UT-A3 – the N- and C-terminal regions of full-length UT-A1, respectively – and UT-B transport water, and human UT-B transports water and ...
N. Pina-Lopes +3 more
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Comparative transport efficiencies of urea analogues through urea transporter UT-B
Biochimica Et Biophysica Acta - Biomembranes, 2007 Expression of urea transporter UT-B confers high urea permeability to mammalian erythrocytes. Erythrocyte membranes also permeate various urea analogues, suggesting common transport pathways for urea and structurally similar solutes. In this study, we examined UT-B-facilitated passage of urea analogues and other neutral small solutes by comparing ...
N D Sonawane, Baoxue Yang
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Urea transport and hydrolysis in the rumen: A review
Animal Nutrition, 2021 Inefficient dietary nitrogen (N) conversion to microbial proteins, and the subsequent use by ruminants, is a major research focus across different fields. Excess bacterial ammonia (NH3) produced due to degradation or hydrolyses of N containing compounds,
Samson Hailemariam +3 more
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The effect of dietary CP and NFC different levels on UT-B expression: A meta-analysis [PDF]
پژوهش های علوم دامی, 2022 Introduction: As is already known, urea transport across the ruminant wall is mediated via urea transporters in the epithelium membrane (Stewart et al. 2005). Facilitative urea transporters are derived from the UT-A and UT-B genes.
E Ibrahimi Khoram Abadi and M Kazemi
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Utilization of urea and expression profiles of related genes in the dinoflagellate Prorocentrum donghaiense. [PDF]
PLoS ONE, 2017 Urea has been shown to contribute more than half of total nitrogen (N) required by phytoplankton in some estuaries and coastal waters and to provide a substantial portion of the N demand for many harmful algal blooms (HABs) of dinoflagellates.
Xiaoli Jing +4 more
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Physiologia, 2023 Theodoxus fluviatilis (Linnaeus, 1758) (Gastropoda: Neritidae) is an oligohaline aquatic gastropod that inhabits most of Europe and adjacent areas of Asia.
Jan Knobloch +6 more
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A perfusion study of the handling of urea and urea analogues by the gills of the dogfish shark (Squalus acanthias) [PDF]
PeerJ, 2013 The branchial mechanism of urea retention in elasmobranchs was investigated using an in vitro isolated-perfused head preparation, as well as in vivo samples, in the spiny dogfish shark.
Chris M. Wood +3 more
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Biology Open, 2020 Urea transporters (UTs) facilitate urea diffusion across cell membranes and play an important role in the urinary concentration mechanisms in the kidney.
J. Kabutomori +2 more
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Urea transport by cotransporters [PDF]
The Journal of Physiology, 2000 The rabbit Na+-glucose cotransporter (rbSGLT1) was expressed in Xenopus laevis oocytes and urea transport in rbSGLT1 and non-injected (control) oocytes was studied using [14C]urea as a tracer. The level of rbSGLT1 expression in these batches of oocytes was monitored by measuring the uptake of alpha-methyl-D-[14C]glucopyranoside ([14C]alphaMDG).
D W, Leung +4 more
openaire +2 more sources