BACKGROUND Aging of the population, in particular the "baby boomers," has resulted in increased interest in methods of reversal of photodamage. Non-invasive treatments are in high demand, and our knowledge of mechanisms of photodamage to skin, protection of the skin, and repair of photodamage are becoming more sophisticated and complex. OBJECTIVE The objective of this study is to determine if...

We report the synthesis and characterization of eight half-sandwich cyclopentadienyl IrIII pyridine complexes of the type [(η5-Cpxph)Ir(phpy)Z]PF6, in which Cpxph = C5Me4C6H5 (tetramethyl(phenyl)cyclopentadienyl), phpy = 2-phenylpyridine as C∧N-chelating ligand, and Z = pyridine (py) or a pyridine derivative. Three X-ray crystal structures have been determined. The monodentate py ligands blocke...

The asymmetric unit of the title compound, C(30)H(36)N(2)O(2), contains one half-mol-ecule, the other half being generated by a crystallographic inversion centre. The crystal structure is devoid of any classical hydrogen bonds however, non-classical C-H⋯O inter-actions link the mol-ecules into chains propagating in [001] and a C-H⋯π inter-action leads to the formation of a two-dimensional netwo...

The asymmetric unit of the title compound, C24H14F4O2, comprises of one and a half mol-ecules; the half-mol-ecule is completed by crystallographic inversion symmetry. In the crystal, mol-ecules are linked into a three-dimensional network by C-H⋯F and C-H⋯O hydrogen bonds. Some of the C-H⋯F links are unusually short (< 2.20 Å). Hirshfeld surface analyses (dnorm surfaces and two-dimensional finge...

background: atrial fibrillation (af) is prevalent among cardiac patients; and as the risk of thromboembolism is high in this arrhythmia, discrimination of the effective risk factors in producing left atrial (la) thrombosis is clinically important. the molecular structure of lipoprotein(a) [lp(a)] is very similar to plasminogen , so it can be hypothesized that the high level of lp(a) is a compro...

The paper presents a theorem showing that in the componentconnection model framework a large scale interconnected system is aggre-gable if and only if one of its components is aggregable.

Lactoferrin is an iron-binding diferric glycoprotein present in most of the exocrine secretions. The major role of lactoferrin, which is found abundantly in colostrum, is antimicrobial action for the defense of mammary gland and the neonates. Lactoferrin consists of two equal halves, designated as N-lobe and C-lobe, each of which contains one iron-binding site. While the N-lobe of lactoferrin h...

BACKGROUND Recent guidelines recommend testing all individuals born during 1945-1965 for hepatitis C virus (HCV) antibody. For antibody-positive patients, subsequent RNA testing is necessary to determine current infection status. This study aimed to assess whether clinicians order HCV RNA tests as recommended for antibody-positive patients and to identify barriers to such testing. METHODS We ...

BACKGROUND We previously reported infectious HCV clones that contain the convenient reporters, green fluorescent protein (GFP) and Renilla luciferase (Rluc), in the NS5a-coding sequence. Although these viruses were useful in monitoring viral proliferation and screening of anti-HCV drugs, the infectivity and yield of the viruses were low. METHODOLOGY/PRINCIPAL FINDINGS In order to obtain a hig...

Hepatitis C virus (HCV) RNA is synthesized by the replicase complex (RC), a macromolecular assembly composed of viral non-structural proteins and cellular co-factors. Inhibitors of the HCV NS5A protein block formation of new RCs but do not affect RNA synthesis by pre-formed RCs. Without new RC formation, existing RCs turn over and are eventually lost from the cell. We aimed to use NS5A inhibito...