Journal of a Passage from the Pacific to Atlantic (Cap. VIII) (1829) de Henry Lister Maw

Prostaglandins have diverse effects on renal electrolyte reabsorption, inhibiting NaCl absorption in the thick ascending limb and modulating sodium and calcium transport in cortical collecting cells. It is unclear what effect, if any, prostaglandins have on tubular magnesium handling. The effects of prostaglandin E2(PGE2) were studied on immortalized mouse distal convoluted tubule (MDCT) cells ...

Mg2+ ions are very effective at stabilizing tertiary structures in RNAs. In most cases, folding of an RNA is so strongly coupled to its interactions with Mg2+ that it is difficult to separate free energies of Mg2+-RNA interactions from the intrinsic free energy of RNA folding. To devise quantitative models accounting for this phenomenon of Mg2+-induced RNA folding, it is necessary to independen...

The mechanisms of magnesium (Mg2+) transport, the regulation of intracellular Mg2+ concentrations and the relationship between Mg2+ and Ca2+ signaling during the stimulus-secretion coupling process in pancreatic acinar cells and other secretory epithelia are reviewed in this article. Our results demonstrate the existence of a Na+- and ATP-dependent transport system for Mg2+ extrusion from Mg2+-...

Instructions for Officials, Clerks, and Forest Charcoalers (1826) – An Unsuccessful Attempt to Modernize the Governmental Charcoal Industry in Kingdom of Poland (1826–1829) The article contains instruction charcoalers state officials supervising them, which was developed 1826 by Government Commission Revenues Treasury Poland. document is provided with a historical commentary. edited source info...

Photodegradation of methyl orange was investigated using synthesized TiO2:Mg2+/zeolite as the photocatalyst. The photocatalyst was characterized by X-ray, XRF, FT-IR, and SEM. The photocatalytic activities of TiO2:Mg2+/zeolite samples were evaluated in the degradation of methyl orange under visible light irradiation. The appropriate content of Mg in the composite was obtained as 4.711 wt% with ...

Na+/Mg2+ antiport and Na(+)-independent Mg2+ efflux were investigated in erythrocytes of 41 patients with cystic fibrosis and 26 controls. Na(+)-independent Mg2+ efflux was unchanged in cystic fibrosis, but a significantly increased activity of Na+/Mg2+ antiport was detected (control: 0.16 +/- 0.02, cystic fibrosis: 0.39 +/- 0.06, Mg2+ efflux, mmol/30 min x 1 cells, mean +/- SEM, p < 0.01). An ...

Phosphatidylinositol 3-kinase (PI3K) has been implicated in low extracellular Mg2+ concentration ( [Mg2+]e)-induced aortic contraction, and Mg2+ deficiency has been associated with hypertension. Moreover, arterial PI3K activity is increased in hypertensive deoxycorticosterone (DOCA)-salt rats. We hypothesized that low [Mg2+]e activates PI3K, eliciting enhanced vascular contraction, PI3K activit...

Magnesium (Mg2+) is indispensable for many physiological processes in the cell impacting organ function (de Baaij et al. 2015). Intracellular concentrations of free Mg2+ aremaintained within a narrow range (0.5–1.2 mM) through tightly regulated Mg2+ influx and effluxmechanisms (Ebel & Gunther, 1980). InhibitionofMg2+ effluxby substitution of extracellular Na+ by choline in mammalian cells indic...