The fruit of the cherry tomato (Lycopersicon esculentum (Solanaceae)) was analysed for mineral and antinutrient composition. Phosphorus (33.04 ± 0.21 mg/100g) was the most abundant mineral in the fruit, followed by calcium (32.04 ± 0.06 mg/100 g), and potassium (11.9 ± 0.1 mg/100 g) and manganese (9.55 ± 0.28 mg/100 g) were also present in appreciable quantities. Antinutrients, including phytat...

Increased aldosterone levels with consequent or diuretic-potentiated electrolyte abnormalities are an important consideration when patients with cirrhosis and ascites undergo diuresis. A simple clinical method using the urinary Na/K ratio as a guide to spironolactone dosage is outlined. Patients with a ratio greater than 1 responded well to 100 mg. of spironolactone a day; those when it was one...

Na transport across a preparation of sheep omasum was studied. All tissues exhibited a serosa-positive short-circuit current ( I sc), with a range of 1-4 μeq ⋅ h-1 ⋅ cm-2. A Michaelis-Menten-type kinetic was found between the Na concentration and the I sc(Michaelis-Menten constant for transport of Na = 6.7 mM; maximal transport capacity of Na = 4.16 μeq ⋅ h-1 ⋅ cm-2). Mucosal amiloride (1 mM), ...

The interactions of Mg and K in cardiovascular disease are diverse and complex. However, Mg deficiency and loss from the heart and arteries, caused e.g. by dietary deficiency or imbalance, or by diseases and their treatment, can contribute to cardiovascular damage, and to functional abnormalities. Although Mg deficiency interferes with K retention, it is seldom measured in routine clinical prac...

dry land salinity is one of the major problems affecting agricultural products. the main consequences of plant exposure to salt stress are water deficit and ion excess, which lead to several morphological and physiological changes. in order to evaluate the effect of salinity on some physiological characteristics of 8 spring rapeseed cultivars, an experiment was conducted in the greenhouse at ya...

This study investigated the role of the Na-H exchanger (NHE) on angiotensin II (Ang II)–induced activation of Na-dependent Mg transport in vascular smooth muscle cells (VSMCs) from Wistar-Kyoto rats (WKY; n520) and spontaneously hypertensive rats (SHR; n520). Intracellular free concentrations of Mg ([Mg]i) and Na 1 ([Na]i) and intracellular pH (pHi) were measured with the specific fluorescent p...

3 PharmaEast GmbH, Berlin, Germany There is increasing evidence indicating that certain drugs evoke adverse drug effects that depend on the gender of patients. Elucidation of gender-effect of various drugs by means of preclinical trials is an important field of pharmacology. The chloriuretic and natriuretic effect of valproates (VPA) had not been investigated earlier, so the aim of the present ...

Net Mg(2+) absorption from the rumen is mainly mediated by a transcellular pathway, with the greater part (62%) being electrically silent. To investigate this component of Mg(2+) transport, experiments were performed with isolated ruminal epithelial cells (REC). Using the fluorescent indicators mag-fura 2, sodium-binding benzofuran isophthalate, and 2', 7'-bis(2-carboxyethyl)-5(6)-carboxyfluore...

  In a three-year (2004-2006), field experiment, we aimed to study changes in leaf physiological traits (leaf water potential-Ψleaf, leaf water content-LWC, carbon isotope discrimination-Δ, specific leaf area-SLA, chlorophyll content as assessed by SPAD and modified SPAD-MSPAD) and elemental composition (K, Na, Ca, Mg, K/Na, Ca/Mg, total leaf salinity-TLS) of sugar beets (cv. Rizor) grown unde...