[Hypervitaminosis B12 - a new marker and predictor of prognostically unfavorable diseases].

A high serum vitamin B12 level (hypercobalaminemia) is a underestimated anomaly. Clinically, it can be paradoxically accompanied by signs of deficiency, which are related to defects in tissue uptake of vitamin B12. The increase in the level of serum cobalamin occurs mainly in serious diseases that require early diagnosis: hemoblastosis, liver and kidney diseases, etc.

A DFT study of the effect of OH groups on the optical, electronic, and structural properties of TiO2 nanoparticles.

The effects of on-surface OH groups on the structural and optical properties of small TiO2 particles have been studied in order to obtain knowledge about the optical behaviour of the TiO2 nanoparticles in solutions. The standard density functional theory was used to model the structural changes, and time-dependent density functional theory was used to address the changes in the photoabsorption characteristics of an anatase-structured (TiO2)16 cluster. It was shown that the OH groups can alter both the geometric and electronic structure of the clusters, resulting in changes in the optical properties.

Synthesis, characterization and light harvesting properties of nickel(II) diimine dithiolate complexes.

Four Ni(II) diimine dithiolato complexes viz. [Ni{(S2C2Ph2)(1,10-Phenanthroline)}] (2), [Ni{(S2C2Ph2)(3,3'-dicarboxy-2,2'-bipyridyl)}] (3), [Ni{(S2C2Ph2)(4,4'-dicarboxy-2,2'-bipyridyl)}] (4) [Ni{(S2C2Ph2)(2,2'-bipyridyl)}] (5) have been prepared from [Ni(S2C2Ph2)2] (1) and characterized by microanalyses, UV-Vis, IR, (1)H and (13)C NMR. Attempts have been made to explain the nature of charge transfer in these molecules through quantum chemical calculations.

Population frequency of myotonic dystrophy: higher than expected frequency of myotonic dystrophy type 2 (DM2) mutation in Finland.

Myotonic dystrophy (DM) is the most common adult-onset muscular dystrophy with an estimated prevalence of 1/8000. There are two genetically distinct types, DM1 and DM2. DM2 is generally milder with more phenotypic variability than the classic DM1.

Myotonic dystrophy type 2 found in two of sixty-three persons diagnosed as having fibromyalgia.

Because of its high prevalence, fibromyalgia (FM) is a major general health issue. Myotonic dystrophy type 2 (DM2) is a recently described autosomal-dominant multisystem disorder. Besides variable proximal muscle weakness, myotonia, and precocious cataracts, muscle pain and stiffness are prominent presenting features of DM2.