Two resveratrol analogs, pinosylvin and 4,4'-dihydroxystilbene, improve oligoasthenospermia in a mouse model by attenuating oxidative stress via the Nrf2-ARE pathway.

Two synthesized resveratrol analogs from our laboratory, namely pinosylvin (3,5-dihydroxy-trans-stilbene, PIN) and 4,4'-dihydroxystilbene (DHS), have been carefully evaluated for treatment of oligoasthenospermia. Recent studies have demonstrated that PIN and DHS improved sperm quality in the mouse. However, the mechanism of action of PIN and DHS on oligoasthenospermia remains unknown.

[Nitrogen Loss Through Different Ways in Cropland Under Conventional Fertilization: An In-situ Study of Summer Maize Season in the Middle and Lower Reaches of the Yangtze River].

In order to better understand the characteristics of nitrogen loss through different pathways under conventional fertilization conditions, a field experiment was conducted to investigate the variations of N2O emission, NH3 volatilization, N losses through surface runoff and leaching caused by the application of nitrogen fertilizers during summer maize growing season in the Middle and Lower reaches of the Yangtze River, China. Our results showed that when compound fertilizer was used as basal fertilizer at the nitrogen rate of 150 kg.hm-2, and urea with the same level of fertilizing as topdressing, the N2O emission coefficient in the entire growing season was 3.