Results 11 to 20 of about 175 (164)

Renal bicarbonate reabsorption during bicarbonate loading

open access: yesKidney International, 1980
To examine bicarbonate reabsorption at different GFR's, we varied the renal perfusion pressure in anesthetized dogs after inhibiting autoregulation by expanding extracellular volume and infusing ethacrynic acid. At a plasma bicarbonate concentration (PHCO3) of 28 +/- 1 mM, bicarbonate reabsorption varied in proportion to GFR (glomerulotubular balance).
Fredrik Kiil   +2 more
openaire   +3 more sources

There is more to an elevated bicarbonate [PDF]

open access: yesJournal of Clinical Sleep Medicine, 2021
Citation:Hadigal S, Ryals S, Wagner M, Berry R. There is more to an elevated bicarbonate. J Clin Sleep Med. 2021;17(1):111–112.
Susheela Hadigal   +3 more
openaire   +2 more sources

Transmembrane Transport of Bicarbonate Unravelled [PDF]

open access: yesChemistry – A European Journal, 2021
AbstractInvited for the cover of this issue are Dr. Stephen Butler, Dr. Hennie Valkenier and co‐workers at Université Libre de Bruxelles, Loughborough University, Masaryk University, and the University of Bristol. The image depicts the transport of bicarbonate anions versus the spontaneous diffusion of CO2 across the lipid bilayer of a liposome.
Luis Martínez‐Crespo   +6 more
openaire   +10 more sources

Critical role of bicarbonate and bicarbonate transporters in cardiac function

open access: yesWorld Journal of Biological Chemistry, 2014
Bicarbonate is one of the major anions in mammalian tissues and extracellular fluids. Along with accompanying H(+), HCO3 (-) is generated from CO2 and H2O, either spontaneously or via the catalytic activity of carbonic anhydrase. It serves as a component of the major buffer system, thereby playing a critical role in pH homeostasis. Bicarbonate can also
Hong-Sheng Wang   +3 more
openaire   +3 more sources

Targeting the AKT/mTOR pathway attenuates the metastatic potential of colorectal carcinoma circulating tumor cells in a murine xenotransplantation model

open access: yesMolecular Oncology, EarlyView.
Dual targeting of AKT and mTOR using MK2206 and RAD001 reduces tumor burden in an intracardiac colon cancer circulating tumor cell xenotransplantation model. Analysis of AKT isoform‐specific knockdowns in CTC‐MCC‐41 reveals differentially regulated proteins and phospho‐proteins by liquid chromatography coupled mass spectrometry. Circulating tumor cells
Daniel J. Smit   +19 more
wiley   +1 more source

Airway epithelial cells: ‘Bicarbonate in’≠‘Bicarbonate out’

open access: yesThe Journal of Physiology, 2012
The importance of intracellular and extracellular pH to physiological function is unquestioned. There are few scenarios in which pathological processes do not include aberrant pH. For example, cystic fibrosis, a genetic disease that adversely affects airways and other epithelia throughout the body, is associated with secretions that have abnormally low
openaire   +4 more sources

Determination of ADP/ATP translocase isoform ratios in malignancy and cellular senescence

open access: yesMolecular Oncology, EarlyView.
The individual functions of three isoforms exchanging ADP and ATP (ADP/ATP translocases; ANTs) on the mitochondrial membrane remain unclear. We developed a method for quantitatively differentiating highly similar human ANT1, ANT2, and ANT3 using parallel reaction monitoring. This method allowed us to assess changes in translocase levels during cellular
Zuzana Liblova   +18 more
wiley   +1 more source

Early metastasis is characterized by Gr1+ cell dysregulation and is inhibited by immunomodulatory nanoparticles

open access: yesMolecular Oncology, EarlyView.
Breast cancer metastasis is associated with myeloid cell dysregulation and the lung‐specific accumulation of tumor‐supportive Gr1+ cells. Gr1+ cells support metastasis, in part, through a CHI3L1‐mediated mechanism, which can be targeted and inhibited with cargo‐free, polymeric nanoparticles.
Jeffrey A. Ma   +9 more
wiley   +1 more source

Reaction Mechanism of the Selective Reduction of CO$_2$ to CO by a Tetraaza [Co$^\text{II}$N$_4$H]$^{2+}$ Complex in the Presence of Protons [PDF]

open access: yes, 2018
The tetraaza [Co$^\text{II}$N$_4$H]$^{2+}$ complex (\textbf{1}) is remarkable for its ability to selectively reduce CO$_2$ to CO with 45\% Faradaic efficiency and a CO to H$_2$ ratio of 3:2. We employ density functional theory (DFT) to determine the reasons behind the unusual catalytic properties of \textbf{1} and the most likely mechanism for CO$_2 ...
arxiv   +1 more source

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