Human High sensitive Tumor Necrosis Factor Alpha ELISA Kit

Background: Among breast cancer survivors, elevated inflammation has been linked to greater recurrence risk. Psychological processes, such as cancer-related distress, can pose threats to a survivor's longevity and wellbeing. Although distress can heighten inflammation, little is known about how fluctuations in distress during and after treatment impact a woman's own inflammation - the primary question of this study. Methods: Breast cancer survivors (n = 165, stages 0-III) completed a baseline visit before treatment and two follow-up visits 6 and 18 months after. At each visit, women completed the Impact of Events Scale to assess cancer-related distress, and a blood sample was collected to measure proinflammatory cytokines IL-6, TNF-alpha, IL-1 beta, and IL-8. This longitudinal study related fluctuations in survivor's own cancer-related distress (i.e., within-person effects), as well as average effects of cancer-related distress between survivors (i.e., between-person effects) to inflammatory changes across visits. Results: Women had elevated inflammation at visits where they expressed more cancer-related distress than what was typical. In contrast, the average cancer-related distress was not associated with inflammation. Conclusion: Larger increases in a women's cancer-related distress was linked with higher inflammation across visits. Comparing a survivor's own cancer-related distress to her average levels may prove useful in identifying links between distress and inflammation.

Tocopherols long dominated studies on vitamin E, although interest has shifted to tocotrienols. It was previously shown that delta-tocotrienol derived from palm oil reduced nitric oxide released by BV2 microglia as early as 18 h after lipopolysaccharide stimulation. The current study measured delta-tocotrienol uptake by BV2 over a 24 h incubation period and its anti-inflammatory effects on primary microglia. Uptake of 17.5 mu g/mL delta-tocotrienol by BV2 microglia began as early as 5 min and rose steeply to 21 +/- 3% of the amount administered at 24 h. The amount of delta-tocotrienol retained in the lipopolysaccharide-stimulated microglia at 24 h was 14 +/- 2%, with no substantial difference seen in unstimulated microglia. The same delta-tocotrienol regimen reduced nitric oxide levels by 82% at 24 h after lipopolysaccharide stimulation (p < 0.05). This was accompanied by decreased inducible nitric oxide synthase protein expression by 67 +/- 5% compared to untreated controls (p < 0.05). In primary microglia, delta-tocotrienol downregulated IL-1 beta production, but TNF-alpha and IL-6 were not affected. delta-Tocotrienol also reduced prostaglandin E2 production by similar to 78%% and decreased transcription of COX-2 and 5-LOX, but not COX-1. This study showed the anti-inflammatory effects of delta-tocotrienol derived from palm oil and opens up interest for tocotrienol supplementation to reduce the effects of inflammatory conditions.