Urinary rubidium excretion recovery of 8.0 – 10.5 % shows that urine can be a useful diagnostic tool for rubidium expo- sure. The present results reveal that rubidium shows different biological effects depending on the counter anion.

We have previously shown that infusion of rubidium is a powerful stimulus for potassium excretion, thus accounting for a tendency for the plasma potassium concentration to decline in control ...

Rubidium is a potassium analogue [8, 9], and therefore, rubidium has frequently been used as a marker of potassium in transport studies [10, 11]. It has been shown that …

The positron emission tomography (PET) flow tracer 82Rubidium is a known potassium analogue. During our studies of tumor blood flow in prostate cancer, we found that approximately 10% of the patients had high urinary 82Rubidium activity. In roughly half of these patients, the increased renal rubidium/potassium excretion was either …

Long-term maintenance of potassium homeostasis is achieved by alterations in renal excretion of potassium in response to variations in intake. Understanding the …

Renal excretion of potassium, which is the major chronic protective mechanism against abnormalities in potassium balance, depends on filtration, reabsorption, and a highly regulated distal nephron ...

The simultaneous renal clearances of rubidium and potassium were studied during the infusion of solutions of rubidium chloride into intact anesthetized dogs. The effects of prior loading with potas...

Compared to a control group (reduction of plasma potassium to 3.4 ± 0.1 mM by short-term potassium depletion) with a fractional potassium excretion of 2.1 ± 0.3%, rubidium-treated rats excreted potassium at a much higher rate of 14.6 ± 3.0%. The potassium content of principal cells was, however, significantly lower in rubidium …

The simultaneous renal clearances of rubidium and potassium were studied during the infusion of solutions of rubidium chloride into intact anesthetized dogs. The effects of …

Compare . Rubidium and Potassium on the basis of their properties, attributes and periodic table facts. Compare elements on more than 90 properties. All the elements of similar categories show a lot of similarities and differences in their chemical, atomic, physical properties and uses. These similarities and dissimilarities should be known ...

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The renal clearance of rubidium was uniformly less than that of potassium. Nevertheless, rubidium stimulated fractional potassium excretion above the levels …

Urinary rubidium excretion recovery of 8.0-10.5 % shows that urine can be a useful diagnostic tool for rubidium exposure. The present results reveal that rubidium shows different biological ...

This is the first time enhanced renal potassium excretion is visualized on 82Rubidium PET/CT. The positron emission tomography (PET) flow tracer 82Rubidium is a known potassium analogue. During our studies of tumor blood flow in prostate cancer, we found that approximately 10% of the patients had high urinary 82Rubidium activity. In roughly …

Comparison of renal excretion of rubidium and potassium. Am J Physiol. 1959; 197: 1297-1302. PubMed; Google Scholar; Schafer J.A. ... Potassium and rubidium permeability and potassium conductance of the beta-cell membrane in mouse islets of Langerhans. Q J Exp Physiol. 1986; 71: 205-222. Scopus (10)

Preferential retention of potassium compared to rubidium in potassium-depleted rats was accentuated (FE K /FE R b 0.33 ± 0.01) when residual potassium secretion was inhibited by amiloride and K-H exchange stimulated by increased distal buffer delivery (metabolic alkalosis).

Background Patients on chronic dialysis are at increased risk of developing disorders in potassium balance. The preservation of residual renal function (RRF), frequently observed in patients on peritoneal dialysis (PD), may contribute to better control of serum potassium. This study aimed to investigate the role residual renal function on …

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Renal excretion of rubidium and potassium: An electron microprobe and clearance study. A combination of clearance and electron microprobe studies was carried out to investigate renal rubidium excretion and rubidium distribution between plasma and individual tubule cells. Saline-infused animals were compared with potassium-loaded …

probe studies was carried out to investigate renal rubidium excretion and rubidium distribution between plasma and individual tubule cells. Saline-infused animals were …

The regulation of potassium metabolism involves mechanisms for the appropriate distribution between the intra- and extracellular fluid compartments and for the excretion by the kidney. Clearance and single-nephron studies show that renal excretion is determined by regulated potassium secretion and potassium reabsorption, …

Risk assessment visualization of rubidium compounds: comparison of renal and hepatic toxicities, in vivo Biol Trace Elem Res. 2014 Jun;159(1-3) :263-8. doi ... Urinary rubidium excretion recovery of 8.0-10.5% shows that urine can be a useful diagnostic tool for rubidium exposure. The present results reveal that rubidium shows different ...

Abstract. Renal ammonia production appears to be intimately related to potassium homeostasis, and the two may comprise the components of a closed loop regulatory system. Studies with both intact organisms and in vitro systems indicate that potassium depletion stimulates and chronic potassium-loading suppresses renal ammonia …

This website requires cookies, and the limited processing of your personal data in order to function. By using the site you are agreeing to this as outlined in our privacy …

Using an insolubilization technique in combination with element analysis, we examined the possible excretion of Cs+ and Rb+, both known to be biochemical analogs of K+, through the K+-transporting pathway in the gills of seawater-adapted Mozambique tilapia. To detect ion excretion from gills infused with Rb+ or Cs+, the isolated gills were …

Comparison of renal excretion of rubidium and potassium. Comparison of renal excretion of rubidium and potassium Am J Physiol. 1959 Dec;197:1297-302. doi: …

Nevertheless, rubidium stimulated fractional potassium excretion above the levels observed in both saline- and potassium-loaded animals. When compared with their …

The simultaneous renal clearances of rubidium and potassium were studied during the infusion of solutions of rubidium chloride into intact anesthetized dogs. The effects of prior loading with potassium were studied, as were also the responses to acute administration of acetazoleamide and meralluride. It was observed that the clearance of rubidium was …

Comparison of renal excretion of rubidium and potassium (Q78809627) From Wikidata. Jump to navigation Jump to search. scientific article published on 01 December 1959 ... Description Also known as; English: Comparison of renal excretion of rubidium and potassium. scientific article published on 01 December 1959. Statements. instance of ...

For a better understanding of the molecular mechanism of K+ excretion in the gills, cDNA sequences of renal outer medullary K+ channel (ROMK), potassium large conductance Ca(2+)-activated channel ...

Studies on the mechanism of rubidium-induced kaliuresis. Renal clearance and electron microprobe methods were used 1) to elucidate the effects of chronic rubidium administration on potassium transport and 2) to localize, by the use of amiloride in acute experiments, the tubule site of interaction between rubidium and potassium. …

Cell rubidium uptake: A method for studying functional heterogeneity in the nephron. Rubidium uptake into individual tubule cells of rat renal cortex as measured by energy-dispersive X-ray microanalysis on freeze dried cryosections was used as an index of potassium transport. Over a 30 second period following intravenous infusion of …

In addition, this radiotracer is a potassium analogue and therefore, a recent report also demonstrated that renal potassium excretion can be visualized by 82 Rb PET [53]. Moreover, 13 N-ammonia ...

Rubidium has been considered to be nontoxic. Its use includes thin film on glass deposition and as medical contrast medium. Recent technology innovations also involve the use of rubidium, but there is limited information about the biological effects of its various compounds. In the present risk assessment study, a series of rubidium …

Renal excretion of rubidium and potassium: an electron microprobe and clearance study. scientific article published in October 1988. Statements. instance of. scholarly article. 1 reference. stated in.

Effect of K depletion on renal K and Rb excretion: Evidence for activation of K reabsorption. Prolonged potassium depletion activates tubular transport mechanisms mediating potassium absorption. To study ion specificity and factors that modulate the activity of potassium transport pathways, fractional potassium excretion (FEK) was …

The positron emission tomography (PET) flow tracer 82 Rubidium is a known potassium analogue. During our studies of tumor blood flow in prostate cancer, we found that approximately 10% of the patients had high urinary 82 Rubidium activity. In roughly half of these patients, the increased renal rubidium/potassium excretion was either causing …

The rate of disappearance of Rb86 from the plasma, the biologic decay rates of Rb86, and the applicability of Rb86 as a tracer of potassium in man with and without chronic congestive heart failure. J Lab Clin Med. 1955 Mar;45(3):371–394. [ PubMed] [ Google Scholar] COHN WE, KOHN RW. Ion-exchange separation of the alkali metals.

In comparison, the excretion of more than 20 mEq of potassium per day indicates a component of renal potassium wasting that is likely the result of inappropriate potassium secretion. If potassium intake is increased slowly, healthy subjects can excrete more than 400 mEq of potassium per day (8 to 10 times normal intake) without a substantial ...