[Pollution Characteristics and Source Apportionment of Atmospheric VOCs During Ozone Pollution Period in the Main Urban Area of Chongqing].

In late August 2020, a period of O pollution occurred in the main urban area of Chongqing and lasted for approximately 2 weeks (till early September). Ambient air samples, collected using Summa Canisters and DNPH sampling columns at three observation sites in the main urban area, were used to study the composition, photochemical reaction activity, and source apportionment of volatile organic compounds (VOCs) during the period of O pollution. The results showed that the mean volume fraction of TVOCs in the main urban area of Chongqing during the observation period was 45.

Astaxanthin inhibits homocysteine‑induced endothelial cell dysfunction via the regulation of the reactive oxygen species‑dependent VEGF‑VEGFR2‑FAK signaling pathway.

Increased plasma levels of homocysteine (Hcy) can cause severe damage to vascular endothelial cells. Hcy‑induced endothelial cell dysfunction contributes to the occurrence and development of human cerebrovascular diseases (CVDs). Our previous studies have revealed that astaxanthin (ATX) exhibits novel cardioprotective activity against Hcy‑induced cardiotoxicity in vitro and in vivo.

[Systematic review of effectiveness and safety of pudilan Xiaoyan oral liquid in treating pediatric suppurative tonsilitis].

The review aims to assess the effectiveness and safety Pudilan Xiaoyan oral liquid in treating pediatric suppurative tonsillitis systematically through searching relevant electronic database and collecting relevant literature. Meta-analysis was performed with the RevMan 5.3 software.

[Characteristics of atmospheric visibility change and its influence factors in Hefei City, Anhui, China.].

Using the observation data of Hefei atmospheric visibility and meteorological elements and PM and PM concentrations at same period from October 2013 to June 2015, based on comprehensive analysis of the impact factors on atmospheric visibility, the relationships among the relative humidity (RH), PM and PM concentrations and visibility were explored. The results showed that the correlation between RH and Hefei atmospheric visibility was most significant during the period of study. When RH<60%, the coefficients of correlation between PM, PM concentrations and atmospheric visibility increased gradually with the increasing RH.

Experimental study of the protective effects of SYVN1 against diabetic retinopathy.

Genetic factors play an important role in the pathogenesis of diabetic retinopathy (DR). While many studies have focused on genes that increase susceptibility to DR, herein, we aimed to explore genes that confer DR resistance. Previously, we identified Hmg CoA reductase degradation protein 1 (SYVN1) as a putative DR protective gene via gene expression analysis.