scholarly journals Conjugated linoleic acid increased C-reactive protein in human subjects

2005 ◽  
Vol 94 (5) ◽  
pp. 791-795 ◽  
Author(s):  
Annika Smedman ◽  
Samar Basu ◽  
Stefan Jovinge ◽  
Gunilla Nordin Fredrikson ◽  
Bengt Vessby

We previously showed that conjugated linoleic acid (CLA) increases 15-keto-dihydro-prostaglandin F2α, a marker for cyclooxygenase-mediated lipid peroxidation and thus an indicator of cyclooxygenase-mediated inflammation. The aim of the present study was to investigate the effects of CLA on other indicators of inflammation in human subjects, including C-reactive protein, TNF-α, TNF-α receptors 1 and 2, and vascular cell adhesion molecule-1. In a double-blind, placebo-controlled study, fifty-three human subjects were supplemented with a mixture (4·2g/d) of the isomers cis-9,trans-11 CLA and trans-10,cis-12 CLA or control oil for 3 months. CLA supplementation increased levels of C-reactive protein (P=0·003) compared with the control group. However, no changes in TNF-α, TNF-α receptors 1 and 2, and vascular cell adhesion molecule-1 were detected.

2017 ◽  
Vol 3 (3) ◽  
pp. 131
Author(s):  
Pringgodigdo Nugroho ◽  
Aida Lydia ◽  
Endang Susalit

Pendahuluan. Penyakit kardiovaskular merupakan penyebab utama morbiditas dan mortalitas pada pasien hemodialisis (HD). Faktor risiko kardiovaskular non-tradisional yang berperan salah satunya adalah inflamasi. Penggunaan dialiser proses ulang (DPU) dilaporkan menimbulkan reaksi inflamasi yang lebih ringan dibandingkan dengan dialiser baru, tetapi belum ada data pada membran selulosa diasetat.Metode. Dua puluh pasien HD diikutsertakan pada penelitian dengan desain pre and post untuk mengetahui perubahan konsentrasi interleukin 6 (IL-6), C-reactive protein (CRP) dan soluble vascular cell adhesion molecule-1 (sVCAM-1) pasca-HD pada penggunaan DPU ke-0, ke-5, dan ke-10. Subjek penelitian adalah pasien HD kronik >3 bulan dengan membran dialiser selulosa diasetat yang diproses ulang menggunakan mesin, cairan campuran asam perasetat dan hidrogen peroksida. Urea Reduction Ratio (URR) dan delivered Kt/V dinilai pada DPU ke 0, 5 dan 10.Hasil. Konsentrasi CRP selama penelitian menurun. Median konsentrasi CRP saat DPU ke-0 adalah 3,55 mg/L, saat DPU ke-5 adalah 2,97 mg/L dan saat DPU ke-10 adalah 2,92 mg/L, dengan p=0,074. Median konsentrasi IL-6 pada DPU ke-0 adalah 9,05 pg/ml, pada DPU ke-5 adalah 10,64 pg/ml dan pada DPU ke-10 adalah 8,51 pg/ml, dengan p=0,316. Rerata konsentrasi sVCAM-1 saat DPU ke-0 adalah 3078±786 ng/ml, saat DPU ke-5 adalah 3260±836 ng/ml, saat DPU ke-10 adalah 3154±631, dengan p=0,746. Selama penggunaan DPU hingga 10 kali tidak didapatkan perubahan adekuasi HD yang dinilai dengan URR dan Kt/V.Simpulan. Pada penggunaan DPU hingga proses ulang ke-10 tidak didapatkan peningkatan respons inflamasi yang bermakna, bahkan didapatkan penurunan konsentrasi CRP walaupun secara statistik tidak bermakna.Kata Kunci: CRP, DPU, hemodialisis, IL-6, inflamasi, sVCAM-1Change of Interleukin-6, C-Reactive Protein and Soluble Vascular Cell Adhesion Molecule-1 Concentrations in Hemodialysis Patients with Reprocessed DialyzerIntroduction. Cardiovascular disease is a major cause of morbidity and mortality in hemodialysis patients. In addition to traditional cardiovascular risk factors, non-traditional cardiovascular risk factors such as inflammation were also involved. Reprocessed dialyzer has been showed to induce less inflammation than new dialyzer, but data in diacetate cellulose membrane have not been presented. Methods. Twenty hemodialysis (HD) patients were enrolled. Pre and post study design was conducted to know post dialysis concentration changes of interleukin 6 (IL-6), C-reactive protein (CRP) and soluble vascular cell adhesion molecule-1 (sVCAM-1) at reuse 0, 5 and 10. Patients were recruited if medically stable, on maintenance HD >3 months, using reprocessed diacetate cellulose membrane by automated machine with mixture of periacetic acid and hydrogen peroxide solution. Urea reduction ratio (URR) and delivered dialysis dose were used to evaluate dialysis adequacy at reuse 0, 5, and 10.Results. CRP concentration was decreased. Median concentration of CRP at reuse 0, 5 and 10 were 3.55 mg/L, 2.97 mg/L and 2.92 mg/L, p=0.074. There were no significant changes of IL-6 concentration. Median concentration of IL-6 at reuse 0, 5, and 10 were 9.05 pg/ml, 10.64 pg/ml and 8.51 pg/ml, p=0.316. Concentration of sVCAM-1 was not changed significantly, with mean sVCAM-1 concentration 3078±786 ng/ml, 3260±836 ng/ml and 3154±631 ng/ml at reuse 0, 5 and 10,p=0.746. During use of reprocessed dialyzer through 10 times, there were no significant changes of hemodialysis adequacy using URR and Kt/V.Conclusions. The use of reprocessed dialyzer through 10 times showed no significant increase in inflammatory responses. CRP concentration was decreased, although statistically not significant. Keywords: CRP, hemodialysis, IL-6, inflammation, reprocessed dialyzer, sVCAM-1  


2014 ◽  
Vol 42 (03) ◽  
pp. 619-637 ◽  
Author(s):  
Chan-Jung Liang ◽  
Chiang-Wen Lee ◽  
Hsin-Ching Sung ◽  
Yung-Hsiang Chen ◽  
Shu-Huei Wang ◽  
...  

Expression of cell adhesion molecules by the endothelium and the attachment of leukocytes to these cells play major roles in inflammation and cardiovascular disorders. Magnolol, a major active component of Magnolia officinalis, has antioxidative and anti-inflammatory properties. In the present study, the effects of magnolol on the expression of vascular cell adhesion molecule-1 (VCAM-1) in human aortic endothelial cells (HAECs) and the related mechanisms were investigated. TNF-α induced VCAM-1 protein expression and mRNA stability were significantly decreased in HAECs pre-treated with magnolol. Magnolol significantly reduced the phosphorylation of ERK, JNK, and p38 in TNF-α-treated HAECs. The decrease in VCAM-1 expression in response to TNF-α treatment was affected by JNK and p38 inhibitors, not by an ERK inhibitor. Magnolol also attenuates NF-κB activation and the translocation of HuR (an RNA binding protein) in TNF-α-stimulated HAECs. The VCAM-1 expression was weaker in the aortas of TNF-α-treated apo-E deficient mice with magnolol treatment. These data demonstrate that magnolol inhibits TNF-α-induced JNK/p38 phosphorylation, HuR translocation, NF-κB activation, and thereby suppresses VCAM-1 expression resulting in reduced leukocyte adhesion. Taken together, these results suggest that magnolol has an anti-inflammatory property and may play an important role in the prevention of atherosclerosis and inflammatory responses.


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