Serum Nuclear Factor Erythroid-2 Related Factor-2 (NRF2) as an Indicator of Oxidative Stress is Related to Coronary in-Stent Restenosis

Objective: In the treatment of coronary artery disease, stent implantation has become the standard treatment, but development of in-stent restenosis (ISR) limits the benefit of this treatment modality. Methods: Based on the connection between oxidative stress and thiol/disulphate and NRF2, it was intended to measure NRF2 and thiol/disulphate levels. Results: Coronary angiography images of 76 stable angina pectoris patients were evaluated. Of the 51 patients with a history drug eluting stent implantation, we determined 25 patients with ISR (Group 1) and 26 patients without ISR (Group 2). Twenty-five patients with normal coronary arteries were included in the study as control group (Group 3). NRF2 level was found to be significantly higher in patients who did not develop ISR (p=0.01). Total thiol was significantly higher in group 3 (738.76 micromole/L) compared to group 1 (626.11 micromole/L) and group 2 (630.27 micromole/L) (p=0.014). Native thiol was also significantly higher in group 3 (570.53 micromole/L) compared to group 1 (483.91 micromole/L) and group 2 (501 micromole/L) (p=0.006). Conclusion: We think that total and native thiol levels might be useful as an indicator of oxidative stress in early diagnosis of coronary artery disease, and the NRF2 level can be used in predicting patients who might develop coronary ISR

The effect of heterophilic antibody interference in thyroglobulin measurement on different immunoassay devices

Serum thyroglobulin (Tg) is a biochemical marker used in the follow-up of patients with differentiated thyroid cancer (DTC), but heterophile antibody interference may limit the clinical use of Tg

The effect of different anti-inflammatory treatment strategies on process of atherosclerosis in ankylosing spondylitis patients

Our aim in this study was to examine the effects of different anti-inflammatory treatment strategies on the process of atherosclerosis, which is an important cause of mortality in ankylosing spondylitis (AS) patients, by examining the possible effect of treatments on inflammation, lipid profile and oxidative stress parameters in patients with AS

Metformin reduces ovarian ischemia reperfusion injury in rats by improving oxidative/nitrosative stress.

Objective: To assess the preventive role of metformin on rat ovarian ischemia reperfusion injury. Materials and methods: Forty rats were divided equally into five groups; Group 1: sham, Group 2: surgical control with 3-hr torsion and detorsion, Group 3: 50 mg/kg p.o. metformin 30 min before 3-hr torsion, Group 4; metformin just after detorsion, Group 5; metformin 30 min before torsion and just after detorsion. Bilateral ovaries and blood sample were obtained seven days after detorsion for biochemical and histopathological evaluation. Results: Ovarian tissue total anti-oxidant status (TAS) levels were significantly increased in group 4 when compared to group 1, 2 and 3 (all p < 0.01). In addition, there was a significant decrease in tissue oxidative stress index (OSI) level in group 4 with respect to group 2 (p < 0.01). Moreover, serum levels of OSI were significantly higher in group 2 with respect to group 1 and 5 (both p < 0.05). Similarly, there was significant increase in serum levels of peroxynitrite in group 2 as compared to serum levels in group 3 and 5 (p < 0.01 and 0.05, respectively). Furthermore, there were significant decrease in histopathological scores metformin and sham groups when compared to rats in the control group (Group 2). Conclusion: Metformin reduces ischemia reperfusion injury in rat torsion detorsion model by improving histopathological and biochemical findings including TAS, OSI and peroxynitrite

Octreotide and lanreotide decrease ovarian ischemia–reperfusion injury in rats by improving oxidative and nitrosative stress

Aim: To investigate the protective effect of octreotide and lanreotide on ovarian damage in experimental ovarian ischemia–reperfusion injury. Methods: Fifty-six rats were separated into seven groups; group 1: sham group, group 2: surgical control group with 3-h torsion and detorsion, group 3: 0.02 mg/kg s.c. octreotide 30 min before 3-h torsion, group 4; octreotide just after detorsion for 7 days, group 5: octreotide 30 min before torsion and just after detorsion for 7 days, group 6: single time 20 mg/kg s.c. lanreotide before torsion, group 7: single time lanreotide just after detorsion. Results: All histopathological scores except congestion were significantly lower in group 1 than other groups. In addition, hemorrhage (group 2 vs 4: P < 0.05), degeneration (group 2 vs 4: P < 0.05, group 2 vs 5: P < 0.01 and group 2 vs 6: P < 0.05) and total damage score (group 2 vs 4: P < 0.05, group 2 vs 5: P < 0.05, group 2 vs 6: P < 0.05 and group 2 vs 7: P < 0.05) were significantly lower than other groups. Moreover, ovarian tissue total oxidant status and oxidative stress index levels were significantly decreased in groups 5 (both P < 0.05) and 7 (both P < 0.05) when compared to group 2. Furthermore, tissue levels of peroxynitrite were significantly higher in group 2 than groups 1, 3 and 5 (all P < 0.05). Conclusions: Octreotide and lanreotide have a protective role against ischemia–reperfusion damage in rat torsion detorsion model by improving histopathological and biochemical findings including tissue levels of total oxidant status, oxidative stress index and peroxynitrite