We find that activation of ERK1/2 also occurs in response to injury in
retinal explants. However, this is a transient response and appears to be overcome by Jun N-terminal kinase activation resulting in induction of Bim(EL) mRNA and photoreceptor apoptosis. Our findings provide new insights into the intracellular pathways responsible for regulating apoptosis during neuronal development and degeneration.”
“OBJECTIVE\n\nTo investigate the detailed mechanism of prostate-specific antigen (PSA) decline in metabolic syndrome (MS) and insulin resistance (IR), which lowers the predictive learn more value of the PSA test, we examined the effect of haemodilution and
check details the possibility of an intrinsic metabolic effect. PATIENTS AND\n\nMETHODS\n\nWe analysed 28 315 men who underwent routine check-ups. We compared the age-adjusted mean PSA levels in subjects with and without MS before and after adjusting or stratifying the plasma volume. We analysed changes in PSA level, plasma volume and PSA mass according to obesity grade, number of MS components, IR severity and diagnosis of MS, IR or both using an analysis of covariance.\n\nRESULTS\n\nThe PSA levels were lower in the group with MS than in the group without MS (P = 0.001), but this difference disappeared after adjusting or stratifying the plasma volume (P > 0.05 for all). The PSA levels decreased, plasma volume increased, and PSA mass did not change as the number of MS components increased (P = 0.002, P < 0.001, P = 0.55, respectively) or the IR severity increased (P = 0.001, P < 0.001, P = 0.34, 3-MA in vivo respectively).\n\nSimilarly, PSA levels were lower, plasma volumes were higher and PSA masses were the same in subjects with MS (P = 0.002, P < 0.001, P = 0.10,
respectively), IR (P = 0.018, P < 0.001, P = 0.94, respectively), or both (P = 0.003, P < 0.001, P = 0.86, respectively) than in subjects without those conditions.\n\nCONCLUSION\n\nThe PSA decline in MS and IR may result simply from a haemodilution effect and be unrelated to intrinsic metabolic disturbances. For this reason, PSA levels could be underestimated in patients with MS or IR because of haemodilution.”
“External morphological characters were used to reconstruct a phylogeny of the mite family Syringophilidae (Acariformes: Cheyletoidea), which are permanent parasites inhabiting the quills of bird feathers. A total of 53 syringophilid genera and 79 characters were included in the data matrix; maximum parsimony (MP) and Bayesian analyses (BA) were performed to determine their phylogenetic relationships. The consensus of unweighted MP trees was weakly resolved.