Amine antioxidants in water, ice, sediment and soil from the Songhua Wetland, Northeast China: Occurrence and fate.

Amine antioxidants (ANs) are emerging organic pollutants that are widely used in industrial products. The extensive use of ANs has polluted the environments. At present, there is no report on the pollution situation of ANs in wetland environment.

Screening and quantification of pesticides in wetland water, ice, sediment and soil: Occurrence, transport and risk assessment.

Current researches on pesticides in wetlands are limited in terms of screening and quantification of many types of pesticides. Understanding the spatial and temporal dynamics, distribution patterns, and environmental risks of pesticides in multiple media is important for wetland ecological conservation. In this study, 222 pesticides were determined in multimedia samples collected simultaneously from the Songhua Wetland during four seasons.

Multimedia distribution, dynamics, and seasonal variation of PAHs in Songhua wetland: Implications for ice-influenced conditions.

The knowledge of polycyclic aromatic hydrocarbons (PAHs) in wetlands remains limited. There is a research need for the dynamics between interfaces of multimedia when ice is present in this fragile ecosystem. In this study, sediment, open-water, sub-ice water, and ice samples were collected from the Songhua wetland to study the behaviors of PAHs with and without influences from ice.

Therapeutic effects of mesenchymal stem cell-derived microvesicles on pulmonary arterial hypertension in rats.

Aim: Microvesicles (MVs) are nanoscale membrane fragments released from virtually all cell types upon activation or apoptosis, and may contribute to the beneficial effects of stem cell therapy. In this study, we investigated the therapeutic effects of mesenchymal stem cell (MSC) derived MVs (MSC-MVs) on pulmonary artery hypertension (PAH) in rats.

Methods: MSC-MVs were isolated from rat bone marrow MSCs that were cultured in a serum-free conditioned medium.

[Identification and expression analysis of a full-length cDNA encoding Brassica napus small nuclear ribonucleoprotein BnSmD1].

By using substractive hybridization (SSH) and rapid amplification of cDNA ends-polymerase chain reaction (RACE-PCR), a full-length cDNA encoding Brassica napus small nuclear ribonucleoprotein, named BnSmD1, was obtained. It had 484 base pairs in length containing an open reading frame (ORF) of 354 bp and encoding a predicted protein of 118 amino acids with a molecular weight of 13 kDa. The BnSmD1 protein shares two highly conserved Sm folds (Sm-1 and Sm-2) and a C-terminal RG dipeptide repeat.