Objective To observe the anti-inflammatory effect and opportunity of continuous blood purification (CBP) for treatment of patients with severe acute pancreatitis (SAP). Methods A retrospective study was conducted. One hundred and sixty patients with SAP admitted into the Department of Critical Care Medicine of the First Hospital of Wuhan from May 2013 to February 2017 were enrolled, and they were treated after admission by continuous vein-venous hemofiltration (CVVH) with blood flow volume 150-200 mL/min, displacement fluid velocity 2000-3500 mL/h and maintenance of ultrafiltration rate 35 mL·kg-1·h-1. According to the acute physiology and chronic health evaluationⅡ (APACHE Ⅱ) scores in 24 hours after admission, the patients were divided into four groups: 15-19 scores (group A), 20-24 scores (group B), 25-29 scores (group C), ≥ 30 scores (group D), 40 cases in each group. Before and after treatment for 72 hours, the difference of serum adiponectin, endotoxin, tumor necrosis factor-α (TNF-α), interleukin (IL-6, IL-8) were compared, the changes of APACHE Ⅱ score, multiple organ dysfunction syndrome (MODS) score, systemic inflammatory response syndrome (SIRS) score, and also complications and mortality in 14 days after treatment were observed for the patients. Results Compared with those before CVVH treatment, the levels of endotoxin, TNF-α, IL-6, IL-8 were significantly decreased, adiponectin was significantly increased among the various APACHEⅡ score groups after CVVH treatment, and the changes of various index amplitude variations in groups B and C were more obvious [endotoxin (EU/L): 2.9±1.0 vs. 3.6±1.5, 3.1±1.2 vs. 3.8±1.4; TNF-α (μg/L): 100.5±15.3 vs. 177.5±24.6, 113.7±17.2 vs. 190.4±25.8; IL-6 (μg/L): 107.3±13.5 vs. 230.5±32.4, 118.2±16.1 vs. 244.6±30.2;IL-8 (μg/L): 201.5±25.7 vs. 355.6±47.2, 215.4±29.4 vs. 376.4±47.3; adiponectin (mg/L): 21.9±3.6 vs. 17.6±3.4, 20.8±3.7 vs. 15.8±2.9, all P < 0.05]. Compared with those before treatment, the scores of APACHEⅡ, MODS and SIRS in groups A, B and C were significantly decreased after treatment, among which the changes of the index amplitude variation of group B and group C were more significant (APACHEⅡ: 16.2±1.4 vs. 22.9±1.7, 18.2±1.4 vs. 28.3±2.1; MODS score: 4.4±1.5 vs. 7.7±1.5, all P < 0.05), the scores of APACHE Ⅱ and SIRS in group D were not significantly decreased, but on the contrary the MODS score had an increasing tendency. After treatment, the 14-day mortality was 0%, 0%, 12.5%, 47.5% in group A, B, C, D respectively (χ2 = 8.350, P = 0.039 ), and the incidence of complications was 32.5%, 52.5%, 60.0%, 80.0% after CVVH in group A, B, C, D respectively(χ2 = 27.04, P = 0.028). Conclusion Early CBP treatment can decrease the inflammatory reaction of SAP patients, and the CBP therapeutic effect is relatively good if it is carried out for SAP patients with 20 ≤ APACHE Ⅱ score < 30.

BACKGROUNDAllergic asthma is a chronic airway inflammatory disease partly characterised by high concentration of T help 2 (Th2) cytokines in bronchoalveolar lavage fluid (BALF). There is no report on the relation of peripherally circulating blood lymphocytes and asthma. We explored the balance of Th2/Th1 cytokines in asthmatic mice. Exogenous recombinant interleukin (IL) 33 acted on murine peripheral circulating blood lymphocytes, IL-5 cytokine was selected for assessing Th2 cytokines and interferon-gamma (IFN-γ) for Th1 cytokines.

METHODSFemale specific pathogen free BABL/c mice were sensitised by intraperitoneal injection of 20 µg of ovalbumin emulsified in 1 mg of aluminium hydroxide gel in a total volume of 200 µl, and challenged for 30 minutes in 7 consecutive days with an aerosol of 2 g ovalbumin in 100 ml of PBS. Then we collected BALF and isolated lymphocytes from the peripheral blood. The lymphocytes were divided into two groups: asthmatic group and normal group. Th1/Th2 cytokines was detected by enzyme-linked immunosorbent assay (ELISA) kits.

RESULTSIn the asthma group, we found numerous eosinophils and lymphocytes on the glass slides. We then confirmed that the optimal concentration of IL-33 was 10 ng/ml and time of IL-33 stimulating lymphocytes was 24 hours. In the asthma group, the production of IL-5 was significantly increased over normal group after stimulation with IL-33 (P < 0.05) and the production of IFNγ was supressed from IL-33 stimulated lymphocytes (P < 0.05).

CONCLUSIONIL-33 acts on lymphocytes of peripheral blood increasing secretion of Th2 cytokines and inhibiting secretion of Th1 cytokines.

Animals ; Asthma ; chemically induced ; immunology ; metabolism ; Enzyme-Linked Immunosorbent Assay ; Female ; Interferon-gamma ; immunology ; metabolism ; Interleukin-33 ; Interleukin-5 ; immunology ; metabolism ; Interleukins ; immunology ; metabolism ; Lymphocytes ; immunology ; metabolism ; Mice ; Mice, Inbred BALB C

Animals ; Carrier Proteins/metabolism* ; Histidine/metabolism* ; Humans ; Methylation ; Methyltransferases/metabolism* ; Neoplasm Proteins/metabolism* ; Neoplasms/metabolism* ; Protein Processing, Post-Translational