Renin release from different parts of rat afferent arterioles in vitro

1986 ◽  
Vol 251 (1) ◽  
pp. F12-F16 ◽  
Author(s):  
L. Baumbach ◽  
O. Skott
Keyword(s):  
Sodium Chloride ◽  
Detection Limit ◽  
Chloride Concentration ◽  
Renin Release ◽  
Afferent Arteriole ◽  
Sodium Chloride Concentration ◽  
Afferent Arterioles ◽  
Different Parts ◽  
Renin Content

A technique was designed to study renin release from superfused rat glomeruli with short attached arterioles (SAG), from single glomeruli with long attached arterioles (LAG), and from single afferent arterioles (AA). The preparations obtained by magnetic isolation and microdissection were superfused individually, and the renin release was measured by an ultramicroradioimmunoassay with a detection limit of 3 X 10(-9) Goldblatt units. The renin content of one SAG was about one-fifth of that contained in one AA. Isoprenaline (10(-5) M) did not change renin release from SAG, whereas renin release from AA and LAG increased threefold (P less than 0.01). A 30-mosmol/kg reduction in medium sodium chloride concentration increased renin release from SAG 50% (P less than 0.01). This challenge caused no change in renin release from AA. It is concluded that the isoprenaline-sensitive juxtaglomerular (JG) cells are located in the afferent arteriole only at some distance from the glomerulus, whereas those cells sensitive to sodium chloride are located within and/or close to the glomerulus.

scholarly journals Characterization of Virus Adsorption by Using DEAE-Sepharose and Octyl-Sepharose

2002 ◽  
Vol 68 (8) ◽  
pp. 3965-3968 ◽  
Author(s):  
Patricia A. Shields ◽  
Samuel R. Farrah
Keyword(s):  
Sodium Chloride ◽  
Electrostatic Interactions ◽  
Hydrophobic Interactions ◽  
Chloride Concentration ◽  
Sodium Chloride Concentration ◽  
Virus Adsorption ◽  
Nacl Concentration

ABSTRACT Viruses were characterized by their adsorption to DEAE-Sepharose or by their elution from octyl-Sepharose by using buffered solutions of sodium chloride with different ionic strengths. Viruses whose adsorption to DEAE-Sepharose was reduced most rapidly by an increase in the sodium chloride concentration were considered to have the weakest electrostatic interactions with the solids; these viruses included MS2, E1, and φX174. Viruses whose adsorption to DEAE-Sepharose was reduced least rapidly were considered to have the strongest electrostatic interactions with the column; these viruses included P1, T4, T2, and E5. All of the viruses studied adsorbed to octyl-Sepharose in the presence of 4 M NaCl. Viruses that were eluted most rapidly following a decrease in the concentration of NaCl were considered to have the weakest hydrophobic interactions with the column; these viruses included φX174, CB4, and E1. Viruses that were eluted least rapidly from the columns after the NaCl concentration was decreased were considered to have the strongest hydrophobic interactions with the column; these viruses included f2, MS2, and E5.

scholarly journals Plant Response to Saline Substrates II. Chloride, Sodium, and Potassium Uptake and Translocation in Young Plants of Hordeum Vulgare During and After a Short Sodium Chloride Treatment

1962 ◽  
Vol 15 (1) ◽  
pp. 39 ◽  
Author(s):  
H Greenway
Keyword(s):  
Sodium Chloride ◽  
Hordeum Vulgare ◽  
Salinity Stress ◽  
Chloride Concentration ◽  
Plant Response ◽  
Potassium Uptake ◽  
Sodium Chloride Concentration ◽  
Subsequent Response ◽  
Chloride Treatment ◽  
Sodium And Potassium

Young barley plants, Hordeum vulgare cv. Chevron, were subjected to a sodium chloride concentration of 100 m-equiv/l. In a "continued" treatment, the salinity stress was maintained for 15 days. In a "removed" treatment, sodium chloride was removed from the substrate after 5 days, and the subsequent response was studied over a period of 10 days.

Effect of sodium chloride concentration and temperature on melphalan stability during storage and use

1994 ◽  
Vol 51 (21) ◽  
pp. 2701-2704
Author(s):  
F. Pinguet ◽  
P. Martel ◽  
P. Rouanet ◽  
M. Fabbro ◽  
C. Astre
Keyword(s):  
Sodium Chloride ◽  
Chloride Concentration ◽  
Sodium Chloride Concentration

Studies on the Growth of Stichococcus Bacillaris Naeg in Culture

1974 ◽  
Vol 54 (2) ◽  
pp. 261-268 ◽  
Author(s):  
J. Hayward
Keyword(s):  
Sodium Chloride ◽  
High Salinity ◽  
Chloride Concentration ◽  
Sodium Chloride Concentration ◽  
Freshwater Organism ◽  
Ionic Concentrations ◽  
Morphogenetic Effects ◽  
Stichococcus Bacillaris

Stichococcus bacillaris has been grown under conditions of varying ionic concentrations. Sodium chloride appears to be the dominant compound in determining growth of this euryhaline alga and from the reaction to increased sodium chloride concentration it is postulated that S. bacillaris is a freshwater organism which can tolerate high salinities. Some morphogenetic effects of high salinity are described.

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