A feasible scavenging mechanism of carboxylic acids is discussed.”
“DNA polymerase h (POLQ) is a family A polymerase that contains an intrinsic helicase domain. POLQ has been implicated in tolerance

to DNA damage but whether this depends solely on its polymerase domain remains unknown. In this study, we generated POLQ-null CH12F3 B cells by gene targeting and compared their sensitivity to DNA-damaging agents with previously established POLQ-inactive CH12F3 cells in which only the polymerase core domain was deleted. Compared with WT cells, POLQ-null and POLQ-inactive cells exhibited similarly increased sensitivity to mitomycin C, cisplatin, and ultraviolet radiation, suggesting that tolerance to these DNA-damaging agents depends largely on POLQ polymerase activity. Intriguingly, POLQ-null cells exhibited higher sensitivity learn more than did POLQ-inactive cells to etoposide and c-irradiation, both of which induce double-strand breaks (DSBs). This observation indicates that the polymerase-deleted POLQ, expressed in POLQ-inactive cells, retains significant function

in tolerance to these agents. Class switch recombination of immunoglobulin genes, which involves repair of activation-induced cytidine deaminase (AID)-triggered DSBs, however, was unaffected in both POLQ-null and POLQ-inactive cells. These results suggest that the polymerase and other functional domains of POLQ both play www.selleckchem.com/p38-MAPK.html important roles in tolerance to etoposide and c-irradiation but are dispensable for AID-mediated class switch recombination.”
“Herein is described a green and original alternative procedure for the extraction of oil from microalgae. Extractions were carried out using terpenes

obtained from renewable feedstocks as alternative solvents instead of hazardous petroleum solvents such as n-hexane. The described method is achieved in two steps Selleckchem ON-01910 using Soxhlet extraction followed by the elimination of the solvent from the medium using Clevenger distillation in the second step. Oils extracted from microalgae were compared in terms of qualitative and quantitative determination. No significant difference was obtained between each extract, allowing us to conclude that the proposed method is green, clean and efficient.”
“Background Bacterial vaginosis (BV) is a very common cause of vaginitis that has been associated with a high incidence of obstetric and gynaecologic complications and increased risk of HIV-1 transmission. This has led to renewed research interest in its treatment.\n\nObjectives\n\nTo assess the effects of antimicrobial agents on BV in non-pregnant women.\n\nSearch strategy\n\nWe searched the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library), MEDLINE, EMBASE, LILACS, and African Healthline (December 2007); and proceedings of relevant international conferences (from 1981 to date).