Expression of monocyte chemoattractant protein-1 and lupus nephritis / 中国医学科学院学报

<p><b>OBJECTIVE</b>To explore the role of monocyte chemoattractant protein-1 (MCP-1) in lupus nephritis (LN).</p><p><b>METHODS</b>Sera MCP-1 levels were measured by enzyme linked immunosorbent assay in 112 patients with systemic lupus erythematosus (SLE), 30 patients with rheumatoid arthritis, 11 non-SLE patients with renal impairment, and 40 healthy volunteers. MCP-1 mRNA expression in peripheral blood mononuclear cells (PBMCs) was also investigated with reverse trancription-polymerase chain reaction semi-quantitative method.</p><p><b>RESULTS</b>The expression of MCP-1 was significantly higher in active LN groups than in all other groups (P < 0.001), and there was a close correlation between MCP-1 expression and the overall SLE disease activity index score (r=0.6245, P < 0.001) and the SLE disease activity index renal score (r=0.6808, P < 0.001). Low expression of MCP-1 was observed in diseased controls and healthy controls. The sera levels of MCP-1 were significantly higher in patients with active diseases than in patients with inactive SLE and controls, but no significant difference were found between the active LN groups and non-renal involvement group (P >0.05).</p><p><b>CONCLUSION</b>The expression of PBMCs MCP-1 mRNA is upregulated in active SLE. Meanwhile, its expression levels are correlated with the activity of LN.</p>

Detection of eotaxin and its clinical diagnosis value in patients with bronchial asthma / 中国医学科学院学报

<p><b>OBJECTIVE</b>To explore the role of eotaxin in the pathogenesis of bronchial asthma and the clinical value in the diagnosis of asthma.</p><p><b>METHODS</b>Serum eotaxin were measured by ELISA in 38 patients with asthma, 28 patients with non-asthma allergy, and 30 healthy controls.</p><p><b>RESULTS</b>The levels of serum eotaxin in the asthma group were higher than those in the non-asthma allergic and control group (P<0.01). Furthermore, eotaxin levels in patients with acute asthma were significantly higher than those in patients with stable asthma (P<0.001). It was also found that the eotaxin levels of the acute asthma group were positively correlated to the amounts of eosinophils in peripheral blood (r=0.4196, P<0.001), and inversely correlated to the forced expiratory volume in one second (FEV1) (r=-0.3746, P<0.001).</p><p><b>CONCLUSION</b>It suggests that eotaxin may play a crucial pathogenic role in the asthmatic process possibly by activating the allergic inflammatory cells and controlling the recruitment of eosinophils from blood to bronchial epithelium of the airway. The concentration of eotaxin is significantly associated with the attack of acute asthma and its severity. Eotaxin may be a potential therapeutic target in patients with asthma.</p>

The influence of CGE on expression of IL-1beta and c-fos protein in the hippocampus region in rats following cerebral ischemia-reperfusion / 中国中药杂志

<p><b>OBJECTIVE</b>To observe inhibiting effect of CGE (compound ginseng extract) on increased expression of IL-1beta and c-fos protein following cerebral ischemia-reperfusion.</p><p><b>METHOD</b>The vascular dementia model was made by middle cerebral artery occlusion for 2 hours. Expression of IL-1beta and c-fos were determined by immunohistochemistry in the hippocampus regions in brain tissue at the 0.5 h-7 d after reperfusion. CGE was diluted by CMC and poured into the stomach by 0.7 mL x (100 g)(-1) with a high dosage (19.34 x 10(3) g x L(-1) row herbs), a middle dosage (9.67 x 10(3) g x L(-1)), a low dosage (4.83 x 10(3) g x L(-1)). There were an IL-1ra (rhIL-1ra 20 microg injected into the left cerebral ventricle), a sham operation (NaCl 20 microL injected into the left cerebral ventricle) and a model as control.</p><p><b>RESULT</b>Compared with control group, three dose groups (low, middle and high) in CGE showed significant inhibiting effects on the expression of c-fos protein at 2, 3, 4, 12 hours and 3 day following cerebral ischaemic-reperfusion. The level of the inhibiting effects in small and middle groups were lower at all time points than that in IL-1ra group (P < 0.05 to P < 0.01). CGE inhibited the expression of hippocampus IL-1beta protein, taking effect from the 2 h after reperfusion. Both HD group (531 +/- 151.1) and MD group (589.3 +/- 78.6) showed more obvious effect which lasted until the 72 h compared with the model group (687.6 +/- 116.7) (P < 0.01 and 0.05). Large dose group (81.3 +/- 16.1) showed the same level of the inhibiting effect on expression of c-fos protein as IL-1ra group (67.2 +/- 25.7) from 4 hour on following cerebral ischaemic reperfusion (P > 0.05).</p><p><b>CONCLUSION</b>CGE with function of Yiqi Bushen, Huoxue Huatan has effect of inhibiting up-regulated expression of IL-1beta and c-fos protein following cerebral ischemia-reperfusion. However, this effect of CGE starts relatively later than that of IL-1ra. The effect of CGE is associated with its dosage, i.e. a larger dosage has a better effect on expression of c-fos protein in post-stroke dementia.</p>

Study on the expression of PBMCs IP-10 mRNA and systemic lupus erythematosus / 中华检验医学杂志

Objective To explore the relation between the expression of PBMCs IP-10 mRNA and systemic lupus erythematosus.Methods The expression of PBMCs IP-10 mRNA was investigated by RT-PCR semi quantitative method and samples from 46 patients with SLE,20 patients with RA,11 non-SLE patients with renal impairment and 20 healthy volunteers.Results The expression of PBMCs IP-10 mRNA in active SLE group was significantly higher than that in inactive group(P0.05).Serum levels of IP-10 were highly correlated with the expression levels of PBMCs IP-10 mRNA(r=0.897 1,P