Characteristic and complementary chiral recognition ability of four recently developed immobilized chiral stationary phases based on amylose and cellulose phenyl carbamates and benzoates.

To date, various immobilized chiral stationary phases (CSPs) have been developed. The immobilized CSPs have opened up possibilities not only maintaining the high chiral recognition abilities as well as corresponding coated ones but also affording high durability to various mobile phase. This report directed to investigate enantioseparation of recently launched four immobilized CSPs with cellulose and amylose backbones under normal phase liquid chromatography conditions.

Potent anti-tumor effects of receptor-retargeted syncytial oncolytic herpes simplex virus.

Most oncolytic virotherapy has thus far employed viruses deficient in genes essential for replication in normal cells but not in cancer cells. Intra-tumoral injection of such viruses has resulted in clinically significant anti-tumor effects on the lesions in the vicinity of the injection sites but not on distant visceral metastases. To overcome this limitation, we have developed a receptor-retargeted oncolytic herpes simplex virus employing a single-chain antibody for targeting tumor-associated antigens (RR-oHSV) and its modified version with additional mutations conferring syncytium formation (RRsyn-oHSV).

Effects of tipepidine on MK-801-induced cognitive impairment in mice.

We previously reported that centrally acting non-narcotic antitussives, including tipepidine, inhibit G-protein-coupled inwardly rectifying potassium (GIRK) channel-activated currents of neurons. In addition, when administered at a cough suppressant dose, the drugs ameliorated the symptoms of various models of intractable brain disease in rodents. In the current study, we investigated whether tipepidine causes recovery from schizophrenia-like cognitive dysfunction, which was induced by MK-801 (0.

Tipepidine increases dopamine level in the nucleus accumbens without methamphetamine-like behavioral sensitization.

We previously reported that the novel antidepressant-like effect of tipepidine may be produced at least partly through the activation of mesolimbic dopamine neurons via inhibition of G protein-coupled inwardly rectifying potassium channels. In this study, we investigated whether tipepidine increases dopamine levels in the nucleus accumbens (NAc) in rats using an in vivo microdialysis technique. We further assessed whether tipepidine at antidepressant-like effective doses induces behavioral- and cross-sensitization of locomotor activity in rats using the open field test.

Complementary enantiorecognition patterns and specific method optimization aspects on immobilized polysaccharide-derived chiral stationary phases.

The immobilized polysaccharide-derived chiral stationary phases (CSPs) combine the benefits of broad application scope and high preparative potential with CSP robustness and universal solvent compatibility. Strategies for efficient and straightforward method development with these CSPs were previously overviewed. In the current study, six CSPs with different structural features in the immobilized series were examined for their complementary properties in separation of enantiomers.

Tryptophan auxotroph mutants suppress the superroot2 phenotypes, modulating IAA biosynthesis in arabidopsis.

Plant phytohormone, Indole-3-acetic acid (IAA ), is synthesized by tryptophan (trp) dependent and independent pathway. Here we report that tryptophan auxotroph mutants completely suppressed the abnormalities of auxin over production mutant, superroot2. SUR2 is considered to modulate Trp dependent pathway, resulting IAA accumulation in Arabidopsis.

A Phalaenopsis variety with floral organs showing C class homeotic transformation and its revertant may enable Phalaenopsis as a potential molecular genetic material.

The Orchidaceae is one of the most famous garden plants, and improvement of the orchid is very important in horticulture field. However, molecular information is largely unknown. We found a Phalaenopsis variety harboring floral organs showing C class homeotic change.

MM31/EIR1 promotes lateral root formation in Arabidopsis.

Lateral root formation in Arabidopsis provides a model for the study of auxin function. Tryptophan (Trp) is a precursor of the auxin indoleacetic acid (IAA). To study the physiological function of Trp in auxin-related phenotypes, we examined the effect of Trp on lateral root formation.