Antioxidant activity and contents of leaf extracts obtained from LEV are dependent on the collecting season and extraction conditions.

This study compared the antioxidant activity of extracts from () Levillis leaves. The concentrations of flavonoids and polyphenols were measured in extracts of leaves. The antioxidant activities were examined by ABTS and DPPH radical scavenging activity and ferric reducing antioxidant power (FRAP).

Recent changes of trans-boundary air pollution over the Yellow Sea: Implications for future air quality in South Korea.

The influence of air pollutants originating from the Chinese region on air quality over South Korea has been a major concern for policymakers. To investigate the inter-annual trends of the long-distance transport of air pollutants from China to South Korea, multi-year trend analysis was carried out for Aerosol Optical Depth (AOD, as a proxy of particulate matter), and CO (a water-insoluble air pollutant) and SO (a partially water-soluble air pollutant), over three regions in Northeast Asia. Air pollutants are typically long-range transported from the highly polluted parts of China to South Korea through the Yellow Sea.

A New Anterior Approach for Fluoroscopy-guided Suprascapular Nerve Block - A Preliminary Report -.

Background: The aim of the study was to investigate the feasibility of fluoroscopy-guided anterior approach for suprascapular nerve block (SSNB).

Methods: Twenty patients with chronic shoulder pain were included in the study. All of the nerve blocks were performed with patients in a supine position.

Effects of human amniotic membrane grafts combined with marrow mesenchymal stem cells on healing of full-thickness skin defects in rabbits.

We have investigated the wound-healing effects of mesenchymal stem cells (MSCs) in combination with human amniotic membrane (HAM) when grafted into full-thickness skin defects of rabbits. Five defects in each of four groups were respectively treated with HAM loaded with autologous MSCs (group A), HAM loaded with allologous MSCs (group B), HAM with injected autologous MSCs (group C), and HAM with injected allologous MSCs (group D). The size of the wounds was calculated for each group at 7, 12, and 15 days after grafting.

Effect of fur on pyrC gene expression.

The promoter region of pyrC (dihydroorotase) gene of Escherichia coli was shown to have Fur protein binding properties by gel retardation assay. In vivo regulation of the pyrC expression was studied by measuring dihydroorotase activity and beta-galactosidase level in the fur+ and fur- genetic background. The expression of chromosomal dihydroorotase activity and beta-galactosidase activity of pyrC-lacZ fusion plasmid was repressed to about 30% and 17%, respectively in the fur+ strain compared to those in the fur- strain.