2 to 40 mu g L-1 (r(2) > 0.99), and detection limits were in the range from 0.062 to 0.21 mu g L-1. Real water samples were used for validating the method and recoveries of spiked samples were over the range from 82.0 to 100%. The results indicated that TiO2 nanotubes repesented an attractive alternative sorbent for the enrichment and trace analysis of such pollutants.”
“Acute cytotoxicity (neutral
red assay), AhR-mediated toxicity (CYP P450 1A induction potential EROD assay) and concentrations of PAHs were recorded in RTL-W1 cells to assess the ecotoxicological URMC-099 order potential of sediments from reservoirs along the Tiete River and the Pinheiros River (Brazil). Almost all sediments tested induced cytotoxicity and stimulated cytochrome P450-associated EROD activity. Toxicity increases from Tiete River spring to Sao Paulo city region and decreases towards downstream. A closer analysis of chemical measurements of PAHs and results from bioassay revealed that the PAHs analyzed could not explain more than 7% of the EROD-inducing potencies.
Results selleck kinase inhibitor confirm that most of the toxicity is due to the discharges of the metropolitan area of Sao Paulo. Moreover, they indicate additional sources of pollutants along the river course, which contribute to the degradation of each reservoir. (C) 2009 Elsevier Inc. All rights reserved.”
“To systematically review the literature about maternal and selleck screening library neonatal outcomes following induction of labor (IOL) and spontaneous labor (SL) in women with previous cesarean section (PCS). PubMed, Medline, EMBASE,
Cochrane library searches; January 2000-February 2013. Inclusion criteria: women attempting labor after PCS, singleton term pregnancies. Women undergoing IOL were compared with women in SL. Method for induction, mode of delivery, uterine rupture/dehiscence, post-partum hemorrhage, emergency hysterectomy and any maternal or neonatal morbidity and mortality were analyzed. MOOSE guidelines were followed. Interstudies heterogeneity was tested. A random effect model was generated if heterogeneity was bigger than 25 %. Pooled odds ratio with 95 % confidence interval (OR, 95 % CI) were calculated. Eight articles included 4,038 women with IOL (23.2 %) and 13,374 women with SL (76.8 %). IOL was associated with a lower incidence of vaginal delivery (OR 0.66; 95 % CI 0.55-0.80) and higher rates of cesarean section (OR 1.52; 95 % CI 1.26-1.83), uterine rupture/dehiscence (OR 1.62; 95 % CI 1.13-2.31), and post-partum hemorrhage (OR 1.57; 95 % CI 1.20-2.04), although hysterectomy was similar between the two groups (OR 2.60; 95 % CI 0.52-13.1). Neonatal morbidity was similar after IOL or SL (OR 1.13; 95 % CI 0.75-1.69). Induction of labor increases the risk of uterine rupture/dehiscence and of repeat cesarean section.