[Effect of Xinfeng Capsule on Beclin1/PI3K-AKT-mTOR of Adjuvant Arthritis Rats].

Objective To observe expression levels of autophagy related 5,7,12 mRNA (Atg5, 7,12), microtubule-associated protein 1 light chain 3 (LC3-II), Beclin1, phosphatidylinositol 3-kinase (PI3K) , protein kinase B (AKT) , mammalian target of rapamycin (mTOR) , IL-1 ß, TNF-α, IL-4, and IL- 10 in adjuvant arthritis (AA) rats, and effects of Xinfeng Capsule (XFC) on them. Methods Totally 48 male SD rats were divided into 4 groups, i.e., the control group, the model group, the Western medicine (WM) group (leflunomide, 5. 0 mg/kg) , the Chinese medicine (CM) group (Xinfeng Capsule, 3.0 g/kg) , 12 in each group. Thirty days after medication body weight (BW) , toe swelling degree (E%) , arthritis in- dex (AI) , and pathological changes of ankle joint and ultrastructural changes were observed. mRNA ex- pressions of Atg5, 7, 12, protein expressions of LC3-L , Beclin1 , PI3K, AKT, mTOR, serum contents of IL-1 ß, TNF-α, IL-4, and IL-10 were detected. Results Compared with the normal group, E%, Al, IL-1 ß and TNF-α increased; BW, levels of IL-4 and IL-10, mRNA expressions of Atg5 and Atg12, protein ex- pressions of LC3-ll and Beclin1 decreased (P <0.01, P <0.05), protein expressions of PI3K, AKT, mTOR increased (P<0.01) in the model group. Compared with the model group, E%, Al, mRNA expres- sions of IL-1ß , TNF-α-, and Atg12, protein expressions of PI3K, AKT, and mTOR decreased (P <0.01, P<0.05), IL-4, IL-10, protein expressions of LC3-II and Beclinl increased (P <0.01, P <0.05) in the two medicated groups. Atg5 mRNA expression decreased (P <0.01) , Atg7 mRNA expression increased (P < 0.05) in the WM group. Compared with the WM group,BW, IL-4, mRNA expressions of Atg5 and Atg12, protein expressions of PI3K and mTOR increased in the CM group (P <0.01 , P <0. 05). Conclusions The level of autophagy in AA rats was decreased, leading to excessive proliferation of synovial cells, swollen joints, elevated proinflammatory factors, decreased inflammatory factors, resulting in inflamma- tory reactions of joints. XFC could improve Al, toe swelling degree, and expressions of synovium autoph- agy related genes and proteins.

[Effect of Xinfeng Capsule on AS Patients and Their Serum Immunoglobulin Subtypes and Peripheral Lymphocyte Autophagy].

OBJECTIVE: To observe the effect of Xinfeng Capsule (XFC) on ankylosing spondylitis (AS) patients' symptoms and signs, serum immunoglobulin levels, peripheral blood lymphocyte autophagy protein, autophagy gene, and to explore its mechanism. METHODS: Totally 59 AS patients were assigned to the treatment group (39 cases) and the control group (20 cases) according to random digit table. Patients in the treatment group received XFC, 0.5 g each pill, three pills each time, 3 times per day, while those in the control group received sulfasalazine (SASP), 0.25 g per tablet, 4 tablets each time, twice per day. Three months consisted of one therapeutic course. Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) and Bath Ankylosing Spondylitis Functional Index (BASFI) were statistically calculated. Serum immunoglobulins (IgG1, IgG2, IgG3, IgG4, IgA , SIgA, and IgM) were detected using ELISA. Changes of Beclin1, LC3-II, phosphatidylinositol 3-kinase (PI3K), Akt, the mammalian target of rapamycin (mTOR) were detected using Western blot. Serum autophagy related genes such as Atg1, Atg5, Atg12, Atg13, and Atg17 were detected using the polymerase chain reaction (PCR). The correlation between immunoglobulin subtypes and autophagy gene in AS patients using Spearman correlation. RESULTS: Compared with before treatment, BASDAI, IgG1, lgG3, and IgA decreased (P < 0.01); PI3K, Akt, and mTOR protein expressions decreased (P < 0.01); ATG1, ATG12, ATG13, and ATG17 mRNA expressions decreased, ATG5 mRNA expression increased (P < 0.01) in the treatment group. But BASDAI, IgG1, and IgA levels decreased (P < 0.05, P < 0.01); PI3K, Akt, and mTOR protein expressions decreased (P < 0.05); ATG1 and ATG13 mRNA expressions decreased (P < 0.05, P < 0.01) in the control group. Compared with the control group, BASDAI, IgG1, and IgA levels decreased (P < 0.05); PI3K, Akt, mTOR protein expressions decreased (P < 0.01); ATG12 and ATG17 mRNA expression decreased, ATG5 mRNA expression increased (P < 0.01) in the XFC group. Correlation analysis showed AS patients' IgG1, IgG2, IgG3, IgA, SIgA, IgM had negative correlation with ATG17; IgG4 and ATG17 were positively correlated (P < 0.05, P < 0.01). CONCLUSION: XFC could elevate clinical efficacy of AS patients and enhance their autophagy, which might be achieved by acting on PI3K/Akt/mTOR signal, affecting autophagy gene and autophagy protein expression, taking part in the regulation of proliferation and differentiation of lymphocyte B, and strengthen humoral immunity.

Expression of MMIF, HIF-1α and VEGF in Serum and Endometrial Tissues of Patients with Endometriosis.

The aim of this study was to investigate the expression of macrophage migration inhibitory factor (MMIF), hypoxia-inducible factor-1 a (HIF-1α) and vascular endothelial growth factor (VEGF) in the serum and endometrial tissues of patients with endometriosis (EM) and the clinical significance. Eighty EM patients [American Reproductive Association stage I (n=20), stage II (n=22), stage III (n=21) and stage IV (n=17)] were enrolled and divided into mild (10-14 points, n=28), moderate (16-24 points, n=27) and severe (26-30 points, n=25) dysmenorrhea groups. The control group included 40 healthy women of childbearing age who underwent routine healthcare examinations in the enrolment period. The expression of MMIF, HIF-1α and VEGF in the serum and endometrial tissues was measured by enzyme-linked immunosorbent assay and Western blotting, respectively. Meanwhile, the sensitivity and specificity of serum MMIF, HIF-1α, and VEGF when separately used as single indexes or jointly used as one index were examined as well. The results showed that serum concentrations of MMIF, HIF-1α, and VEGF were significantly higher in EM patients than in controls (P<0.05). The expression of all three proteins in both serum and endometrial tissues increased significantly with the R-AFS stage (P<0.05) and with dysmenorrheal severity (P<0.05). The sensitivity and specificity of the combined detection of serum MMIF, HIF-1α, and VEGF levels were significantly higher than those of single index detection (P<0.05). In conclusion, the expression of MMIF, HIF-1α, and VEGF in the serum and endometrial tissues may be used to assess the stage of EM and the severity of dysmenorrhea. Combined evaluation of MMIF, HIF-1α, and VEGF significantly improves the diagnostic sensitivity and specificity.

[Improving the solubility of fraxinellone to increase its oral bioavailability and hepatoprotective action against acute liver injury in mice].

Fraxinellone, the major component of Cortex Dictamni, is naturally degraded limonids compound. Fraxinellone has significant anti-inflammatory activity in acute liver injury model. However, the low solubility and permeability of fraxinellone limited its potential application and even therapeutic effects. The aim of the paper is to increase oral bioavailability of fraxinellone, thus improving its hepatoprotection effect in vivo. We evaluated the effects of different pH values and different solubilizer (PEG 6000, PVP K30, HP-beta-CD, F68 and SDS) on the solubility of fraxinellone. The results showed that HP-beta-CD increased solubility of fraxinellone up to 155 times compared to that of water. More than 2. 1 mg mL1 fraxinellone can be resolved when adding 20% HP-beta-CD. Mouse acute liver injury model induced hy CCl4 was used to evaluate in vivo activity of fraxinellone with or without HP-beta-CD. The result shows that the hepatoprotective activity of fraxinellone in 20% HP-beta-CD solution has been significantly improved compared with that of fraxinellone solution without HP-beta-CD: the former inhibited 59 percent the increase of enzyme activity of ALT in liver, while the latter only inhibited 20 percent. A LC-MS/MS method was also developed to determine the oral bioavailability of fraxinellone. Fraxinellone solution with or without HP-betaCD were administered intra-gastrically to rats, and it was found that the bioavailahility of fraxinellone with HP-beta-CD was 23%, while only 5% without HP-beta-CD. The result showed that HP-beta-CD can significantly increase the solubility and permeability of fraxinellone, and improve bioavailability 3. 5 fold in vivo acute liver injury model as well as administration.

Improving the solubility of ampelopsin by solid dispersions and inclusion complexes.

The aim of this study was to increase the solubility of ampelopsin (AMP) in water by two systems: solid dispersions with polyethylene glycol 6000 (PEG 6000) or polyvinylpyrrolidone K-30 (PVP K30) and inclusion complexes with beta-cyclodextrin (BCD) and hydroxypropyl-beta-cyclodextrin (HPBCD). The interaction of AMP with the hydrophilic polymers was evaluated by differential scanning calorimetry (DSC), Fourier transformation-infrared spectroscopy (FTIR), scanning electron microscopy (SEM). The results from DSC, FTIR and SEC analyses of solid dispersions and inclusion complexes showed that AMP might exist as an amorphous state or as a solid solution. On the other hand, the SEM images of the physical mixtures revealed that to some extent the drug was present in a crystalline form. The influence of various factors (pH, temperature, type of polymer, ration of the drug to polymer) on the solubility and dissolution rate of the drug were also evaluated. The solubility and dissolution rates of AMP were significantly increased by solid dispersions and cyclodextrin complexes as well as their physical mixtures. The improvement of solubility using polymers was in the following order: HPBCD approximately BCD>PVP K30>PEG 6000.