The addition of potassium bicarbonate to the electrode cuvette immediately stimulated the rate of dark O(2) uptake of photomixotrophic and heterotrophic carnation (Dianthus caryophyllus L.) callus, of Elodea canadensis (Michx) leaves, and of other plant tissues. This phenomenon occurred at pH values lower than 7.2 to 7.8, and the stimulation depended on the concentration of gaseous CO(2) in the...

Isoji Sasagawa, MD, Department of Urology, Yamagata University, School of Medicine, 2-2-2 Iidanishi, Yamagata-shi, Yamagata 990-23 (Japan) pressure, bicarbonate and base excess. Sodium and potassium were determined by flame photometry. Chloride was measured by amperometric titration. BUN was determined by a diacetylmonoxime-thiosemicar-bizide reaction and creatinine was estimated with a modifie...

ABSTRACT. Despite the high incidence of acute metabolic acidosis, there are no reliable human data to enable physicians to accurately diagnose this disorder. In addition, there is uncertainty about the direction and magnitude of plasma potassium changes in acute metabolic acidosis. The systemic and renal acid-base, electrolyte, and endocrine response to acute acid loads (imposed by three timed ...

1. After the concentration of potassium in the haemolymph of Helix pomatia has been raised by the infusion of KCl, it falls approximately exponentially for a time and then tends to rise. The accompanying rise and fall of calcium concentration can be fitted to a simple mathematical model. 2. The mobilization of calcium is accompanied by the generation of bicarbonate in equivalent amounts, withou...

The activity of acetyl CoA carboxylase in both crude and purified rat liver preparations was reduced in the presence of sodium or potassium chloride and increased in the presence of potassium acetate. The chloride inhibition was not competitive with bicarbonate. The use of Trischloride buffer did not alter the apparent pH optimum of the enzyme when compared with Tris-acetate buffer.

BACKGROUND AND OBJECTIVES Recent studies evaluated the prevalence of hyperkalemia and related risk factors in patients with CKD of various stages, but there is limited relevant information in predialysis patients. This study aimed to examine the prevalence and factors associated with hyperkalemia in the structured environment of a low-clearance clinic. DESIGN, SETTING, PARTICIPANTS, & MEASURE...

OBJECTIVE To review the physiology and cardiovascular effects of the commonly used intravenous electrolytes. DATA SOURCES Abstracts, articles and published reviews of studies reported from 1966 to 2000 and identified through a MEDLINE search on cardiac arrhythmias and electrolytes. SUMMARY OF REVIEW While isotonic saline solutions are used to improve the haemodynamic status in critically il...

among the healthy compounds such as sodium bicarbonate, potassium bicarbonate, vegetable oils, and biocontrol yeasts including heat treatments, as well as a good alternativeto chemical pesticides are considered hazardous. in this study, the effect of different levels of sodium bicarbonate treatment (0, 500 and 1000 mg/l and combination 1500 mg/l sodium bicarbonate with hot water 53 °c) were inv...

Compared with the Stone Age diet, the modern human diet is both excessive in NaCl and deficient in fruits and vegetables which are rich in K+ and HCO3- -yielding organates like citrate. With the modern diet, the K+/Na+ ratio and the HCO3-/Cl- ratio have both become reversed. Yet, the biologic machinery that evolved to process these dietary electrolytes remains largely unchanged, genetically fix...

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