Increased DNA dynamics is dependent on several homologous recombination (HR) proteins and we are just beginning to understand how chromosome dynamics is regulated after DNA damage.”
“Accumulating evidence supports the hypothesis of ecstasy and amphetamine exhibiting neurotoxic properties in human recreational Etomoxir mouse users. The extent and exact location of neuronal degeneration might also be associated with a specific profile of cognitive deterioration described in polydrug users. Voxel-based morphometry and cortical thickness analyses constantly gain attention for answering the question of associated neurological sequelae. We aimed to evaluate the integrity of cortical and subcortical structures in three groups

that differ in the consumption of amphetamine-type stimulants. Cortical thickness, cortical grey matter volume and the shape of supposedly vulnerable subcortical structures were compared between 20 experienced users, 42 users with little exposure to these substances and 16 drug-naive controls. Cortical thinning in experienced users compared to drug-naive controls and

low-exposure users was observed in medio-frontal regions. Effects of ecstasy and amphetamine on cortical volume were similar to those of cortical thickness, with volume reductions primarily in frontal, but also in occipital and parietal regions of low Nutlin-3 in vivo exposure and experienced users. These effects were differently lateralized for the different comparisons. The investigation of subcortical structures revealed non-significant bilateral shape differences in the hippocampi. Our data support the hypothesis that massive recreational amphetamine-type stimulant polydrug use is associated with a thinning of cortical

grey matter. Disrupted neuronal integrity in frontal IWR-1 in vitro regions does fit well into models of addiction and the cognitive deterioration in amphetamine-type stimulant polydrug users. The exact neurotoxic mechanisms of polydrug ecstasy and amphetamine use, however, remain speculative. (C) 2012 IBRO. Published by Elsevier Ltd. All rights reserved.”
“Purpose: After undergoing vasectomy up to 6% of men will elect to undergo vasectomy reversal. For these men paternity can be achieved with vasectomy reversal or surgical sperm retrieval coupled with assisted reproduction. Nevertheless, it remains difficult for surgeons to accurately counsel men on the chance of patency after vasectomy reversal.

Materials and Methods: A retrospective review was conducted of 548 patients who underwent microsurgical vasectomy reversal. Surgery was considered successful if sperm concentration was 100,000 or more sperm per ml, total count was 100,000 or more sperm per ejaculate, motile sperm were present and there was no evidence of subsequent failure. A multivariate logistic regression model was constructed to calculate the probability of having a successful vasectomy reversal and nomograms for patency were generated from this model.