Biochemical and Biophysical Research Communications
Quantification of intracellular free sodium ions by using a new fluorescent indicator, sodium-binding benzofuran isophthalate in guinea pig myocytes
References (18)
J. Am. Coll. Cardiol
(1985)- et al.
J. Biol. Chem
(1989) - et al.
J. Biol. Chem
(1989) - et al.
F.E.B.S. letters
(1990) J. Physiol
(1987)- et al.
J. Physiol
(1985) - et al.
Circ. Res
(1989) - et al.
J. Clin. Invest
(1988) - et al.
J. Gen. Physiol
(1964)
Cited by (31)
Fluorescent heterocycles: Recent trends and new developments
2019, Advances in Heterocyclic ChemistryCitation Excerpt :Benzofurans have a high relevance as biological active molecules not only as antiinflammatory, analgesic, and antipyretic agents but also as inhibitors of several enzymes and antiviral and antimicrobial drugs (2008EJMC300, 2015EJMC483). As a result, very successful fluorescence-based applications of benzofurans have been made in the field of ion sensors for sodium, potassium, calcium, zinc, iron, and silver ions (1991BBR611, 1993JN818, 1994BJ539, 2002JA10650, 2005SJ1197, 2007SA(B)450, 2009POL3110). An innovative detection approach using benzofurans was published recently; this approach capitalizes on the high reactivity of benzofuran-2-boronic acid (11) to form the benzofuran dimer (12) upon treatment with palladium under mild basic conditions (Fig. 6).
Corticosteroids increase intracellular free sodium ion concentration via glucocorticoid receptor pathway in cultured neonatal rat cardiomyocytes
2014, IJC Heart and VesselsCitation Excerpt :The mean fluorescence signals from the 10 SBFI-unloaded wells at 340 nm and 380 nm were subtracted from the individual signals of the SBFI-loaded wells at each wavelength [22]. The in vivo calibration of SBFI was accomplished, similar to that described in previous reports, by exposing the cardiomyocytes to various concentrations of extracellular [Na+] (0–20 mM) in the presence of 1 mg/l Gramicidin D (MP Biomedicals), 100 μM of strophanthidin (Sigma-Aldrich) and 2 mM EGTA, and the pH was adjusted to 7.1 with Tris base [22–25]. The solutions were prepared by mixing two solutions of equal ionic strength.
Activation of Na<sup>+</sup>,H<sup>+</sup> exchanger produces vasoconstriction of renal resistance vessels
1998, American Journal of HypertensionSmall changes of cytosolic sodium in rat ventricular myocytes measured with SBFI in emission ratio mode
1997, Journal of Molecular and Cellular CardiologyInterplay between sodium and calcium dynamics in granule cell presynaptic terminals
1997, Biophysical Journal