Background: Despite its importance in understanding acid-base pathophysiology, many physicians do not comprehend the concept of the strong anion gap (SIG), the core of the Stewart acid-base approach. The quantitative difference between the anion gap and the strong ion gap is not established. This paper will give insight into this difference over a variety of conditions Methods. The empiric diff...

The Ag(I) atom in the salt, [Ag(C(4)H(6)N(2))(2)]NO(3)·2H(2)O, shows a nearly linear coordination [N-Ag-N = 178.26 (7)°]. The cation, anion and water mol-ecules are linked by N-H⋯O and O-H⋯O hydrogen bonds into a layer motif extending parallel to (101).

To examine the effects of hyperglycemia on some associated metabolic profiles and how they affect the anion gap, we determined the electrolyte profile, glucose, HbA1c, urea, creatinine and pH. Interaction of these metabolic parameters were assessed using spectrophotometric, flame photometric and other biochemical methods. We established a bioregulatory relationship of immense physiological and ...

We undertook the present study to examine the acid-base and electrolyte disturbances in relation to hydration status in patients with diabetic ketoacidosis (DKA). A total of 40 insulin-dependent diabetes mellitus patients (22 male, 18 female), aged 18-61 years with DKA admitted to our hospital during the last 2 years, were studied. The duration of diabetes averaged 9 +/- 2 years. In all cases a...

The title complex, [Ag3Br2(C25H22P2)3]Br·C7H8N2S, comprises a trinuclear [Ag3Br2(C25H22P2)3](+) unit, a Br(-) anion and one N,N'-di-methyl-thio-urea mol-ecule (ptu). Three Ag(I) ions are linked via two μ3-bridging Br atoms, leading to a distorted triangular bipyramid with an Ag⋯Ag separation range of 3.1046 (6)-3.3556 (6) Å. The triangular Ag3 arrangement is stabilized by six P atoms from three...

In a paper by Schmitz and colleagues in this issue of Neuron, new evidence for the existence of gap junctions between pyramidal cell axons uncovers a mechanism for fast neural communication in the hippocampus. Electrical coupling between axons may be crucial during fast oscillations, which have been proposed to mediate memory consolidation.

In the title salt, {[Ho(NO(3))(2)(C(6)H(18)N(3)OP)(4)][AgWS(4)]}(n), the anion forms a W/S/Ag polymeric chain along the a axis. The holmium atom in the cation is coordinated by eight O atoms from two nitrate and four hexa-methyl-phospho-ramide ligands in a distorted square-anti-prismatic geometry. Together with the two nitrate ligands, the complex cation in the title compound is univalent, whic...

In this paper, ten novel silver(I) sulfonates containing pyrazine derivatives, [Ag(L1)(Pyr)(H2O)] (1), [Ag(L1)(2,3-Pyr)] (2), [Ag(L1)(2,5-Pyr)] x H2O (3), [Ag(L1)(2,3,5-Pyr)] (4), [Ag(L1)(2,3,5,6-Pyr)] (5), [Ag(L2)(Pyr)] (6), [Ag(L2)(2,3-Pyr)] (7), [Ag(L2)(2,6-Pyr)] (8), [Ag(L2)(2-Pyr)] (9), and [Ag(L2)(2,5-Pyr)] x H2O (10) (L1 = 3-amino-4-methylbenzenesulfonate anion; L2 = 2-amino-3,5-dimethyl...

The Ag(I) atom in the title compound, [Ag(C11H11N3O)3]NO3, shows a T-shaped coordination arising from bonding to the N atom of three N-heterocycles; the geometry is distorted towards square pyramidal owing to two weak Ag⋯Onitrate inter-actions [Ag⋯O = 2.691 (5) and 3.073 (5) Å]. The cation and anion are linked by O-H⋯N and N-H⋯O hydrogen bonds, generating a three-dimensional network.

A novel mixed-valent Ag(I)/Ag(0) T(h)-Ag(34) cage was obtained by a one-pot ultrasonic reaction. In the shell of the cage, CO(3)(2-) anion is derived from atmospheric CO(2) and adopts a rare μ(6) bridging mode to link the Ag(I) ions. In the core of the cage, an unprecedented neutral metal cluster with six zero-valent silver atoms is encapsulated.