In this study a simple, highly sensitive, and selective electrochemical method was developed for determination of the low concentration curcumin (CUR) using a poly(vanillin-co-caffeic acid) p(Van-CA) modified platinum electrode. Electrode modification was carried out electrochemically with cyclic voltammetry (CV) method. For this purpose; a solution of 6 mM vanillin (Van) and 6 mM caff...

Mg deficiency increases the concentration of Zn in the liver. We investigated the effect of Mg deficiency on the expression of Zn-regulating factors such as Zn transporters and metallothionein (MT) in the rat liver. Because Ca deficiency alleviates some of the effects of Mg deficiency, we also investigated the interactions associated with Ca and Mg deficiencies. Growing male rats were given a c...

The s1-receptor is a one-transmembrane endoplasmic reticulum protein that binds neurosteroids and dextrorotatory benzomorphans. The roles of s1-receptors in regulating intracellular Ca 21 in NG108 cells were examined in this study. s1-Ligands pregnenolone sulfate, (1)-pentazocine, and 2-(4-morpholino)ethyl-1phenylcyclohexane-1-carboxylate hydrochloride modulate Ca signaling in NG108 cells via t...

Introduction: To assess the salivary composition of proteins and minerals in smokers compared with non-smokers.   Materials and Methods: In this study we compared the total protein and Ca, Na, K, Mg, Pb of whole saliva in two groups of men (28 smokers and 31nonsmokers) aged between 29-41years.   Results: Fifty-nine participants were evaluated. The mean age was 33.14±5.32 years among smo...

The reconstruction of seawater calcium concentration ([Ca2+]SW) in the geologic past is crucial to our understanding biogeochemical processes and elemental cycling as linked long-term climate change. Published [Ca2+]SW estimates for Cenozoic differ from each other both direction magnitude change, are associated with large uncertainties. Here we demonstrate potential Na/Ca planktic foraminifera ...

Sixty gravid crossbred gilts were allotted to a 2 x 3 x 2 factorial arrangement of treatments: two Ca sources (sun-cured alfalfa meal and CaCO3), three dietary concentrations of Ca (50, 75, and 100% of NRC requirements), and two phases of gestation (55 and 105 d). The objectives were to determine the effect of Ca source, dietary Ca concentration, and gestation phase on bone characteristics (bon...

The effects of change in the concentration of Ca++ on myocardial contractility depressed by thiamylal and halothane were studied in isolated dog heart muscle. The concentration of Ca++ in the bathing medium was increased stepwise from 1.9 to 20.9 mM. An increase in Ca++ concentration resulted in an increase both in net-shortening (delta1) and in maximum velocity of shortening at 0.4 g preload (...