Dynamic interactions between corticosterone, corticosteroid binding globulin and testosterone in response to capture stress in male breeding Eurasian tree sparrows.

In birds, corticosterone (CORT), testosterone (T), and corticosteroid binding globulin (CBG) are involved in modulating the trade-off between reproduction and survival. In response to acute stress, increased total plasma CORT is a ubiquitous phenomenon while T levels can decrease, or remain unchanged. Since CORT and T bind competitively with CBG in birds, the underlying regulatory mechanisms and consequences of their dynamic interactions remain largely unknown.

Effect of sustained training on glycolysis and fatty acids oxidation in swimming muscles and liver in juvenile tinfoil barb Barbonymus schwanenfeldii (Bleeker, 1854).

The present study examines the effect of sustained exercise on glycolysis and fatty acids oxidation in the swimming muscles and liver in juvenile tinfoil barb (Barbonymus schwanenfeldii). The subjects were divided into one control group (water current speed of 0.0 bl s, body length per second) and two training groups (1.

[Effects of histone H3 K4L and K36L mutations on the cell growth and the transcription of GAL1, SSA3 and PHO5 in Saccharomyces cerevisiae].

Post-translational modifications of histones, such as acetylation and methylation, have a pivotal role in regulating gene expression and cell growth. To elucidate the different roles and importance of H3K4 and H3K36 modifications in expression of inducible genes such as Cal1, SSA3, PHO5 and the growth of yeast cell, we constructed three different yeast mutant strains carrying mutations of lysine 4, 36, or both to leucine in the histone H3 tail. Real-time PCR and sensitive assay under the conditions of high temperature, NaCl, caffeine, 6-AU, or other conditions were carried out to characterize the effects of these mutations on cell growth and transcription levels of GAL1, SSA3 and PHO5.