Activation of Sirt1 by Resveratrol Inhibits TNF-α Induced Inflammation in Fibroblasts

Inflammation is one of main mechanisms of autoimmune disorders and a common feature of most diseases. Appropriate suppression of inflammation is a key resolution to treat the diseases. Sirtuin1 (Sirt1) has been shown to play a role in regulation of inflammation. Resveratrol, a potent Sirt1 activator, has anti-inflammation property. However, the detailed mechanism is not fully understood. In this study, we investigated the anti-inflammation role of Sirt1 in NIH/3T3 fibroblast cell line. Upregulation of matrix metalloproteinases 9 (MMP-9), interleukin-1beta (IL-1β), IL-6 and inducible nitric oxide synthase (iNOS) were induced by tumor necrosis factor alpha (TNF-α) in 3T3 cells and resveratrol suppressed overexpression of these pro-inflammatory molecules in a dose-dependent manner. Knockdown of Sirt1 by RNA interference caused 3T3 cells susceptible to TNF-α stimulation and diminished anti-inflammatory effect of resveratrol. We also explored potential anti-inflammatory mechanisms of resveratrol. Resveratrol reduced NF-κB subunit RelA/p65 acetylation, which is notably Sirt1 dependent. Resveratrol also attenuated phosphorylation of mammalian target of rapamycin (mTOR) and S6 ribosomal protein (S6RP) while ameliorating inflammation. Our data demonstrate that resveratrol inhibits TNF-α-induced inflammation via Sirt1. It suggests that Sirt1 is an efficient target for regulation of inflammation. This study provides insight on treatment of inflammation-related diseases

TURKISH JOURNAL OF CHEMISTRY

The differential pulse polarographic (DPP) method was developed for the determination of fluvoxamine maleate (I). At pH = 3. 7, (I) give a peak at - 0. 73 V in aqueous solution. The developed method was applied to the assay of the drug substance in commercial tablet formulations. The results were statistically compared with those obtained by reference methods (HPLC and direct current polarographic method) using t- and F- tests at 95 % confidence level

TURKISH JOURNAL OF CHEMISTRY

A differential pulse polarographic (DPP) method has been developed for the quantitative analysis of enalapril maleate. Enalapril maleate gives a peak at -1.4 V in methanol. A calibration curve was constructed for the 20 -100 mug ml(-1) concentration range. As a reference method, a reversed phase high performance liquid chromatographic procedure has been developed. Commercially available tablets were analysed by the two methods. Statistical evaluations indicated that there was no significant difference between the mean values and precisions of the two methods at a 95% confidence level

Can pharmaceutical history courses contribute in building future pharmacy leaders? A preliminary study from Erciyes University, Turkey

This study aimed to investigate the relationship between pharmacy students' opinions on the importance of leadership and their levels of interest in pharmaceutical history. We administered a structured questionnaire to 160 undergraduate students (response rate of 86.3%) who have taken pharmaceutical history courses at the Erciyes University Faculty of Pharmacy in the past three years. We observed that 42.8% of the participants valued leadership as a very important skill that a pharmacist should possess through his/her professional career, of which 54.2% were very interested in pharmaceutical history. There is a statistically significant relationship between participants' opinions on the importance of leadership and their levels of interest in pharmaceutical history. Our findings suggest that the participants valuing leadership as a very important skill are more interested in pharmaceutical history than those valuing leadership as an unimportant skill. This result indicates that pharmaceutical history courses can serve as an effective tool for developing pharmacy students' awareness and attitudes toward professional leadership

The significance of thrombin generation test in recurrent early pregnancy loss [Tekrarlayan abortuslarda trombin üretim ölçümü (thrombin generation assay) testinin önemi]

Objective: We aimed to study the use of thrombin generation assay (TGA) test in patients diagnosed with recurrent abortus (RA) and with no pathological findings except thrombophilia. Material and Methods: A total of 125 women who presented to the Erciyes University (ERU) Medical School Department of Obstetrics and Gynecology were included in the study. Patients diagnosed with recurrent abortus (RA) comprised the study group (n=100) and healthy subjects without RA were considered the control group (n=25). The study group was divided into two subgroups as thrombophilia positive or thrombophilia negative according to their thrombophilia results. The women included in the control group were selected by random sampling among women who gave healthy births. Blood samples were drawn from the women in both groups for TGA, which is a defined test to analyse thrombophilia factors and coagulation. TGA analyses were run in the Haematology and Genetics Laboratory of ERU. Results: The study included 51 thrombophilia positive and 49 thrombophilia negative patients. In addition, 2 out of 25 women in the control group were thrombophilia positive. The thrombophilia positive group had the highest scores for endogenous thrombin potential (ETP) values, which is the most significant parameter in TGA tests; however, there was no significant difference between the thrombophilia negative group and the control group. A significant difference was detected between women with RA and the control group regarding the length of lag time, time to peak, and start tail. TGA is suggested to identify patients with RA who are thrombophilia positive independently from thrombophilia markers with a sensitivity of 96% (95% confidence interval-CI 86.5-99.4) and a specificity of 96% (95% CI 79.6-99.3). Conclusion: This study suggested for the first time in the literature that the TGA test, which is recently used to analyse coagulation may be used as an effective, sensitive and independent indicator to screeen patients with RA. © 2013 by Türkiye Klinikleri