Only in Titles

Search results for: ELRII ELISA grade rat type II collagen, 0.5 mg

paperclip

#31712060   2019/11/08 To Up

Associations of inflammatory markers and vascular cell adhesion molecule-1 with endothelial dysfunction in collagen-induced arthritis.

We determined the role of high-grade inflammation on endothelial function and its association with biomarkers of endothelial dysfunction in collagen-induced arthritis. Sprague-Dawley rats were divided into a control (n = 12) or collagen-induced arthritis (CIA; n = 21) group. To induce arthritis, Bovine-type-II collagen emulsified in incomplete Freund's adjuvant was injected at the base of the tail. Nine-weeks after the primary immunisation, vascular reactivity in mesenteric and saphenous arteries was assessed using a wire-myograph. Serum concentrations of inflammatory markers (tumor necrosis factor α (TNF-α), interleukin 6 (IL-6), interleukin 1β (IL-1β), C-reactive protein (CRP)) and biomarkers of endothelial dysfunction (vascular cell adhesion molecule-1 (VCAM-1) and asymmetric dimethylarginine (ADMA)) were measured by ELISA. Acetylcholine-induced relaxation in mesenteric and saphenous arteries was impaired in CIA compared to controls (P < 0.05). Responses to sodium nitroprusside were similar between controls and CIA in mesenteric arteries and marginally impaired in saphenous arteries of CIA rats. Compared to controls, TNF-α, IL-6, IL-1β, CRP (all P < 0.00001) and VCAM-1 (P = 0.02) were elevated in CIA. TNF-α (std β(SE) = 0.39(0.16); P = 0.03), IL-6 (std β(SE) = 0.37(0.17); P = 0.03), IL-1β (std β(SE) = 0.41(0.16); P = 0.02) and CRP (std β(SE) = 0.36(0.17); P = 0.04) were associated with VCAM-1. Associations between inflammatory markers and the maximal relaxation (E) to acetylcholine in mesenteric arteries were no longer significant after adjusting for VCAM-1 (except for IL-1β). VCAM-1 was inversely associated with the E to acetylcholine in mesenteric (std β(SE) = -0.49(0.16); P = 0.01) but not in saphenous arteries (std β(SE) = -0.06(0.18); P = 0.76). In conclusion, exposure to high-grade inflammation impairs endothelial-dependent relaxation. The inflammation-induced increase in VCAM-1 concentrations may contribute to the impaired endothelium-dependent relaxation in mesenteric arteries of CIA rats.
Lebogang Mokotedi, Aletta M E Millen, Conrad Mogane, Monica Gomes, Angela J Woodiwiss, Gavin R Norton, Frederic S Michel

1034 related Products with: Associations of inflammatory markers and vascular cell adhesion molecule-1 with endothelial dysfunction in collagen-induced arthritis.

96tests96tests100ug Lyophilized1 mg1.00 flask100ug Lyophilized100ug1x10e7 cells100ug Lyophilized100ug Lyophilized 100ul1.00 flask

Related Pathways

paperclip

#15162539   // To Up

Blockage of transforming growth factor beta receptors prevents progression of pig serum-induced rat liver fibrosis.

To test the hypothesis that introduction of antisense T beta R I and T beta R II eukaryotic expressing plasmids into a rat model of immunologically induced liver fibrosis might block the action of TGF-beta (1) and halt the progression of liver fibrosis.
Wei Jiang, Chang-Qing Yang, Wen-Bin Liu, Yi-Qing Wang, Bo-Ming He, Ji-Yao Wang

1035 related Products with: Blockage of transforming growth factor beta receptors prevents progression of pig serum-induced rat liver fibrosis.

1ug2ug96T5ug5ug 100ul2ug 100 UG5 x 50 ug2ug0.1 mg2ug

Related Pathways