Clinical Significance of Inflammation Factors in Acute Coronary Syndrome from Pathogenic Toxin

The inflammation factors and roles of them in acute coronary syndrome(ACS)were explored. The similarity between the theory of pathogenic toxin in Chinese Medicine and the inflammation response theory in ACS was discussed.The exploration of new inflammatory factors may be helpful for Chinese Medicine in the research of ACS.

Clinical profile of patients with advanced age and inflammatoric dilated cardiomyopathy on endomyocardial biopsy

Background Endomyocardial biopsy （EMB） is an important tool when patients with inflammatoric cardiomyopathy （DCMi） are evaluated. We aimed to assess the clinical profile of elderly patients with DCMi on EMB. Methods Retrospective study of all consecutive patients hospitalized from January 2007 to December 2011 with clinical suspicion of DCMi undergoing EMB. Patients with evidence of DCMi on EMB （Group 1 〉 70 years, n = 85; Group 3 〈 70 years; n = 418） were compared to patients of the same age group without evi- dence of DCMi on EMB （Group 2 〉 70 years, n = 45; Group 4 〈 70 years; n = 147）. Results Among 24,275 patients treated at our institu- tion during the study period, 695 had clinical suspicion of DCMi and underwent EMB; 503 （2.1%） patients had DCMi on EMB. There were more male patients in Group 1, mean age was 74 ~ 2.8 years, mean ejection fraction was 38% q- 14%. On presentation, signs of hemody- namic compromise （NYHA functional class IIUIV, low cardiac output/index, and low cardiac power index） were more frequent in Group 1. EMB revealed viral genome in 78% of the patients, parvovirus B 19 （PVB） was frequently encountered in both age groups （Group 1： 69.4% vs. Group 2： 59.6%）; detection of more than one viral genome was more frequent in Group 1 （21.2% vs. 11.2%; P = 0.02） whereas the extent of immune response was significantly lower in individuals with advanced age. Conclusions In patients 〉 70 years with DCMi on EMB signs of hemodynamic compromise, detection of multiple viral genomes together with an overall lower extent of immune response were more frequently observed.

Intervention of the Mahuang Lianqiao Chixiaodou decoction on immune imbalance in atopic dermatitis-like model mice

Objective:To explore the potential mechanism of intervention on the immune imbalance of atopic dermatitis(AD) by studying the effects of Mahuang Lianqiao Chixiaodou decoction(MLCD) on skin damage and inflammation factors in an AD-like mouse model.Methods:Ninety-six male BALB/c mice were divided into normal,model,positive control(mometasone furoate),and traditional Chinese medicine treatment(MLCD) groups by a random number table.2,4-dinitrofluorobenzene was used to induce AD-like mice in all groups except the normal group.The treatment or intervention was administered for seven consecutive days on days 4,18,32,and 39.The mRNA relative expressions of interleukin-4(IL-4),IL-10,interferon-γ(IFN-γ),thymic stromal lymphopoietin(TSLP),and the TSLP receptor(TSLPR) were measured using quantitative real-time polymerase chain reaction,and the serum immunoglobulin E,IL-4,IL-10,and IFN-γ levels were detected using enzyme-linked immunosorbent assay.Results:Compared with the normal group,the hematoxylin-eosin staining of the skin lesions of the mice in the model group was significantly thickened on days 11,25,and 39.Compared with the model group,the epidermal thickness of the positive control group was significantly alleviated on day 39(P <.001),and that of the MLCD group was significantly improved on days 25 and 39(P <.001).Compared with the four observation time points,MLCD had the best treatment effect on day 39 of the experiment and significantly improved the skin damage performance and relieved pathological lesions.On day 39,compared with the model group,MLCD downregulated the skin mRNA relative expressions of IL-4(P=.009),TSLP(P=.030),and TSLPR(P <.001),and reduced the mouse serum levels of IL-4(P=.003).For other serum indicators,no significant difference was observed between the model and MLCD groups.Conclusion:MLCD improved AD-like mice skin damage by regulating the Th1/Th2 immune imbalance.

Ginsenoside Rb1 attenuates activated microglia-induced neuronal damage

The microglia-mediated inflammatory reaction promotes neuronal damage under cerebral isch- emia/hypoxia conditions. We therefore speculated that inhibition of hypoxia-induced microglial activation may alleviate neuronal damage. To test this hypothesis, we co-cultured ginsenoside Rb 1, an active component of ginseng, and cortical neurons. Ginsenoside Rb l protected neuronal morphology and structure in a single hypoxic culture system and in a hypoxic co-culture system with microglia, and reduced neuronal apoptosis and caspase-3 production. The protective effect was observable prior to placing in co-culture. Additionally, ginsenoside Rbl inhibited levels of tumor necrosis factor-a in a co-culture system containing activated N9 microglial cells. Ginse-noside Rbl also significantly decreased nitric oxide and superoxide production induced by N9 microglia. Our findings indicate that ginsenoside Rbl attenuates damage to cerebral cortex neu-rons by downregulation of nitric oxide, superoxide, and tumor necrosis factor-a expression in hypoxia-activated microglia.

Protective effect of penehvclidine hvdrochloride on ischemiareperfusion injury in rats

Objective:To investigate the protective effect of penehvclidine hvdrochloride on ischemiareperfusion injury in rats.Method:The model of ischemia-reperniston injury was established in rats through clamping rental pedicles for SO min followed by reperfusion.A total of 60 Wistar rats were randomly divided.into 4 groups including fake surgery group,model group,low PHC dosage group and high dosage penehvclidine hvdrochloride(PHC)group.Seven days before the experiment,rats in fake surgery group and model group were given 10 mL/kg normal saline,while rats in low PHC dosage group and high dosage PHC group were given 200 and SO mg/kg PHC,respectively.The urine volume,diet volume,Cre,PU,BUN,IL-6,IL-8,TNF-α,NO MDA concentration,SOD and GSH-Px were determined.Results:Compared with rats in model group,decreased urine volume,diet volume,Cre,PU,BUN,IL-6,IL-8,TNF-α,NO MDA concentration and increased SOD and CSH-Px activity could be seen in low PHC dosage group and high dosage PHC group(P【0.05).Conclusions:Administration of PHC before ischemia-reperfusion injury can help protect ischemia-reperfusion injury.

Effects of hyperbaric oxygen preconditioning on ischemia-reperfusion inflammation and skin flap survival

Background Hyperbaric oxygen preconditioning （HBO） is a new method of ischemia preconditioning. In this study, we examined its effects on skin flap survival and the mechanisms involved. Methods Thirty-six rats were divided into three groups： HBO preconditioning, control, and sham groups. An extended epigastric adipocutaneous flap based on the right superficial epigastric artery and vein was raised. A 3-hour period of flap ischemia was induced by clamping the pedicle vessels with a microvascular clamp. At the end of ischemia induction, the clamp was removed and the flap was resutured. Rats in the HBO preconditioning group were treated with HBO four times before surgery. Microcirculation in the skin flap was measured on postoperative days 1, 3 and 5. The size of the flap was measured on postoperative day 5, before the animals were sacrificed. Samples of the skin flap were prepared and stained with hematoxylin and eosin. The levels of tumor necrosis factor （TNF）-α, interleukin （IL）-1β, and IL-6 in the flap samples were measured.

Panax notoginseng Saponins Protect Kidney from Diabetes by Up-regulating Silent Information Regulator 1 and Activating Antioxidant Proteins in Rats

Objective： To explore the mechanism of the protective effects of Panax notoginseng saponins（PNS） on kidney in diabetic rats. Methods： Diabetic rat model was obtained by intravenous injection of alloxan, and the rats were divided into model, PNS-100 mg/（kg·day） and PNS-200 mg/（kg·day） groups, 10 each. Another 10 rats injected with saline were served as control. Periodic acid-Schiff staining and immunological histological chemistry were used to observe histomorphology and tissue expression of bone morphogenetic protein-7（BMP-7）. Silent information regulator 1（SIRT1） was silenced in rat mesangial cells by RNA interference. The mR NA expressions of SIRT-1, monocyte chemoattractant protein-1（MCP-1）, transforming growth factor β1（TGF-β1） and plasminogen activator inhibitor-1（PAI-1） were analyzed by reverse transcription polymerase chain reaction. The protein expressions of SIRT1 and the acetylation of nuclear factor κB（NF-κB） P65 were determined by western blotting. The concentration of MCP-1, TGF-β1 and malondialdehyde（MDA） in culture supernatant were detected by enzyme-linked immuno sorbent assay. The activity of superoxide dismutase（SOD） was detected by the classical method of nitrogen and blue four. Results： In diabetic model rats, PNS could not only reduce blood glucose and lipid（P〈0.01）, but also increase protein level of BMP-7 and inhibit PAI-1 expression for suppressing fibrosis of the kidney. In rat mesangial cells, PNS could up-regulate the expression of SIRT1（P〈0.01） and in turn suppress the transcription of TGF-β1（P〈0.05） and MCP-1（P〈0.05）. PNS could also reverse the increased acetylation of NF-κB p65 by high glucose. In addition, redox regulation factor MDA was down-regulated（P〈0.05） and SOD was up-regulated（P〈0.01）, which were both induced by SIRT1 up-regulation. Conclusions： PNS could protect kidney from diabetes with the possible mechanism of up-regulating SIRT1, therefore inhibiting inflammation through decreasing the induction of inflammatory cytokines and TGF-β1, as well as activating antioxidant proteins.