OBJECTIVE Phytosterols present in parenteral nutrition (PN) lipid emulsions have been linked to phytosterolemia and cholestatic liver disease, although no direct relation has been established. We investigated the relation among plasma phytosterol (PY) infused, total plasma PY levels, and possible links to PN-associated liver disease. METHODS Twenty-seven adult patients on home PN were enrolle...

How receptors control virus infection is poorly understood. Polyomavirus (Py) binds to the sialic acid-galactose moiety on receptors to gain entry into host cells and cause infection. We previously demonstrated that the sialic acid-galactose-containing glycolipids called gangliosides GD1a and GT1b promote Py infection, in part, by sorting the virus from the endolysosomes to the endoplasmic reti...

|x′ = v, y′ = u 〉 = |x = u, y = v 〉 . (1) We assume a similar relationship exists in momentum space (to be completely general, we should also include a possible phase factor, but for this problem it won’t be necessary): |px = a, py = b 〉 = |px = c, py = d 〉 . (2) Because the inner product in conserved under a change of coordinates, we have: 〈x′ = u, y′ = v |px = a, py = b 〉 = 〈x = u, y = v |px ...

The mechanisms by which receptors guide intracellular virus transport are poorly characterized. The murine polyomavirus (Py) binds to the lipid receptor ganglioside GD1a and traffics to the endoplasmic reticulum (ER) where it enters the cytosol and then the nucleus to initiate infection. How Py reaches the ER is unclear. We show that Py is transported initially to the endolysosome where the low...

In the title dinuclear iridium(III) complex, [Ir(2)(C(10)H(15))(2)(C(5)H(5)N(2)S)(2)]I(2), the iridium(III) atoms are bridged by 2-(aminosulfanyl)pyridine(1-) [(2-py)SNH] ligands in a μ-(2-py)SNH-κ(2)N(py),N(NH):κN(NH) mode. The dinuclear complex cation lies on a crystallographic inversion center, resulting in a planar Ir(2)N(2) ring with an Ir-N(py) bond length of 2.085 (9) Å and bridging Ir-N...

The interaction of β- and γ-cyclodextrins (β-CD and γ-CD, respectively) with polyacrylamide modified with pyrenyl (Py) residues (pAAmPy) was investigated in a mixed solvent of water and dimethyl sulfoxide (DMSO) by steady-state fluorescence. In the absence of CD, the fluorescence spectra indicated that the formation of Py dimers became less favorable with increasing volume fraction of DMSO (x(D...

Pyrrole-imidazole (Py-Im) polyamides are nuclease-resistant novel compounds that inhibit gene expression by binding to the minor groove of DNA. A Py-Im polyamide that targets rat TGF-beta1 was designed as a gene-silencing agent for progressive renal diseases, and the distribution and the effects of this polyamide on renal injury were examined in Dahl-salt sensitive (Dahl-S) rats. For identifica...

The advancement of DNA-based bionanotechnology requires efficient strategies to functionalize DNA nanostructures in a specific manner with other biomolecules, most importantly peptides and proteins. Common DNA-functionalization methods rely on laborious and covalent conjugation between DNA and proteins or peptides. Pyrrole-imidazole (Py-Im) polyamides, based on natural minor groove DNA-binding ...

The cation, anion, and solvent in the title compound, [K(C(18)H(36)N(2)O(6))][Co(C(8)H(12))(C(16)H(10))(2)]·0.5C(5)H(12), are well separated. The pentane solvent mol-ecules are found in channels along [100] and were modeled as disordered over crystallographic inversion centers. Using the mid-points of the coordinated olefins, the angle between the C(py)/C(py)-Co-C(py)/C(py) and the C(cod)/C(cod...