Temozolomide (TMZ) is a drug of choice in glioblastoma treatment. Its therapeutic applications expand also beyond high grade gliomas. However, a significant number of recurrences and resistance to the drug is observed. The key factor in each chemotherapy is to achieve the therapeutic doses of a drug at the pathologic site. Nonetheless, the rate of temozolomide penetration from blood to cerebrospinal fluid is only 20-30%, and even smaller into brain intestinum. That makes a challenge for the therapeutic regimens to obtain effective drug concentrations with minimal toxicity and minor side effects. The aim of our research was to explore a novel epigenetic mechanism of temozolomide action in therapeutic conditions. We analyzed the epigenetic effects of TMZ influence on different glioblastoma cell lines in therapeutically achieved TMZ concentrations through total changes of the level of 5-methylcytosine in DNA, the main epigenetic marker. That was done with classical approach of radioactive nucleotide post-labelling and separation on thin-layer chromatography. In the range of therapeutically achieved temozolomide concentrations we observed total DNA hypomethylation. The significant hypermethylating effect was visible after reaching TMZ concentrations of 10-50 μM (depending on the cell line). Longer exposure time promoted DNA hypomethylation. The demethylated state of the glioblastoma cell lines was overcome by repeated TMZ applications, where dose-dependent increase in DNA 5-methylcytosine contents was observed. Those effects were not seen in non-cancerous cell line. click here The increase of DNA methylation resulting in global gene silencing and consecutive down regulation of gene expression after TMZ treatment may explain better glioblastoma patients’ survival.BACKGROUND Previous studies have demonstrated that opioids are often prescribed and associated with complications in outpatients with cirrhosis. Less is known about opioids among hospitalized patients with cirrhosis. We aimed to describe the patterns and complications of opioid use among inpatients with cirrhosis. METHODS This retrospective cohort study included adult patients with cirrhosis admitted to a single hospital system from 4/4/2014 to 9/30/2015. We excluded hospitalizations with a surgery, invasive procedure, or palliative care/hospice consult in order to understand opioid use that may be avoidable. We determined the frequency, dosage, and type of opioids given during hospitalization. Using bivariable and multivariable analyses, we assessed length of stay, intensive care unit transfer, and in-hospital mortality by opioid use. RESULTS Of 217 inpatients with cirrhosis, 118 (54.4%) received opioids during hospitalization, including 41.7% of patients without prior outpatient opioid prescriptions. Benzodiazepines or hypnotic sleep aids were given to 28.8% of opioid recipients. In the multivariable model, younger age and outpatient opioid prescription were associated with inpatient opioids. Hospitalization was longer among opioid recipients (median 3.9 vs 3.0 days, p = 0.002) and this difference remained after adjusting for age, cirrhosis severity, and medical comorbidities. There was no difference in intensive care unit transfers and no deaths occurred. At discharge, 22 patients were newly started on opioids of whom 10 (45.5%) had opioid prescriptions at 90 days post-discharge. CONCLUSION In non-surgical inpatients with cirrhosis, opioid prescribing was common and associated with prolonged length of stay. A high proportion of patients newly discharged with opioid prescriptions had ongoing prescriptions at 90 days post-discharge.We investigated the effects of voluntary hand movements and continuously present objects on the automatic detection of deviant stimuli in a passive oddball paradigm. The visual mismatch negativity (vMMN) component of event-related potentials (ERPs) was measured as the index of automatic deviant detection. The stimuli were textures consisting of parallel, oblique bars with frequent (standard) and infrequent (deviant) orientation. Traditional vMMN was measured by the difference between ERPs to frequent (standard) and infrequent (deviant) textures. Additionally, we measured ‘genuine’ vMMN by comparing the ERPs to deviant and control textures in the equal probability procedure. Compatible and incompatible hand movement directions to the standard texture had no influence on ‘traditional’ vMMN and elicited no ‘genuine’ vMMN. However, the deviant texture elicited ‘genuine’ vMMN if the orientation of a continuously present rectangle was different from the standard (and identical to the deviant) texture orientation. Our results suggest that the direction of voluntary hand movement and the orientation of task-irrelevant visual patterns do not acquire common memory representation, but a continuously present object contributes to the detection of sequential regularity violation.[This corrects the article DOI 10.1371/journal.pone.0222692.].In the last decade, a cross-national community of like-minded young men has emerged, commonly known as ‘the seduction community’. This community is led by professional ‘pick-up artists’ who teach these young men a variety of techniques and mindsets with the stated aim of improving their success with women, or ‘game’. There has been little research on the men who participate in this community, and none from a mental health angle. As such, this study is propelled by two specific objectives, namely documenting and understanding (i) the reasons why young men join the seduction community; and (ii) the impacts of community involvement on participants’ lives. To meet these aims, we used an inductive qualitative methodology giving ample scope for bottom-up understandings to emerge. Specifically, we recruited young men participating in the seduction community for an in-depth qualitative interview (N = 34) to explore self-reported motives and impacts. Interviews were augmented by lengthy participant observation, and data was analyzed by content analysis techniques. The results reveal that men often join the community to address a range of psychosocial deficits, and that community involvement successfully equips participants with numerous valued social and communication skills. The community appears to fill a void in providing a place of hope, fellowship and learning for young (often immigrant) men. The findings are summarized in five themes (i) loneliness and social inclusion; (ii) lack of male role models and need for guidance; (iii) mental health and well-being issues; (iv) skill acquisition and personal development; and (v) the dark side of pick-up. Interestingly, some of the practices commonly taught and utilized within the community resemble aspects of Cognitive Behavioral Therapy and mental health peer support. This may explain its evident appeal. We conclude by reflecting on the implications of the findings for official mental health service provision for young men.