Study on the effect of the treatment of Periplaneta americana L. extract Ento-B by Dinitrochlorobenzene combined with acetic acid induced UC in rats

ABSTRACT Purpose To study the Periplaneta americana L. extract Ento-B on the treatment of chronic ulcerative colitis induced by 2,4-dinitrochlorobenzene and acetic acid in rats and to explore its primary mechanism of action. Methods Using 2,4-dinitrochlorobenzene combined with acetic acid to induce chronic ulcerative colitis (chronic UC) in rats. The sulfasalazine (400 mg/kg) and Ento-B (200 mg/kg, 100 mg/kg,50 mg/kg) were given by intragastric administration and the effect was evaluated according to the disease activity index (DAI) score, colon mucosal injury index (CMDI) score, histopathological score (HS) and the serum levels of Interleukin-4(IL-4), Interleukin-10(IL-10), Tumor necrosis factor-α(TNF-α), Malondialdehyde(MDA), Superoxide dismutase(SOD) and Inducible nitric oxide synthase(iNOS.) Results Compared with the model group, all doses of Ento-B could reduce the score of CMDI (p < 0.05), HS(p < 0.05 or p < 0.01), significantly increased the expression of IL-4, IL-10, SOD (p < 0.01) and decreased the levels of TNF-α, MDA, iNOS in serum of UC rats, significantly improving the degree of colon lesionsin UC rats. Conclusions Ento-B may play an important role in the treatment of ulcerative colitis induced byUC rats. The mechanism may be related to the increased expression of IL-4, IL-10, SOD and reduced expression of TNF-α, MDA, iNOS.

Effects of mycorrhizal colonization and medicine quality of Paris polyphylla var. yunnanensis inoculated by different foreign AM fungi species / 中国中药杂志

After 28 foreign species of AM fungi were inoculated in sterilized soil, the effects of the AM mycorrhizal colonization and the medicine quality of Paris polyphylla var. yunnanensis were observed by combination of inoculation test in pot at room temperature and instrumental analysis. The results showed that, compared with control group (CK), the inoculation of foreign AM fungi in the soil influenced the spore density, mycorrhizal infection rate, and colonization intensity of AM fungi in root system of P. polyphylla var. yunnanensis. The inoculation of foreign AM fungi enhanced the mycorrhiza viability of P. polyphylla var. yunnanensis by increasing the activity of succinic dehydrogenase (SDH) and alkaline phosphatase (ALP) in intraradical hyphae. The content of single steroid saponin in rhizome of P. polyphylla var. yunnanensis showed variation after P. polyphylla var. yunnanensis was inoculated by different foreign species of AM fungi, which was beneficial for increasing the medicine quality; however, the kinds of steroid saponin showed no difference. In a degree, there was a selectivity of symbiosis between P. polyphylla var. yunnanensis and foreign AM fungi. And we found that the Claroideoglomus claroideum and Racocetra coralloidea were best foreign AM fungi species for cultivating P. polyphylla var. yunnanensis under field condition.

Correlative Study on Sera and Induced Sputum Clara Cell Secretory Protein Levels in Children with Asthma / 实用儿科临床杂志

Objective To explore the role of Clara cell secretory protein(CCSP) in asthmatic children and compare the levels of CCSP in sera and induced sputum.Methods Thirty-four children with asthma who were in remission and 25 healthy controls were enrolled.Sera and hypertonic saline-induced sputum were obtained in asthmatic children,and sera alone were obtained in control subjects.The le-(vels) of CCSP were measured in sera and induced sputum by enzyme linked immunosorbent assay.Results Asthmatic children,compared with controls,had significantly lower concentration of CCSP in sera(P

Clinical Signincance of Clara Cell Secretary Protein in Asthmatic Children / 实用儿科临床杂志

Objective To approach the clinical significance of Clara cell secretary protein(CCSP) in bronchial asthmatic children. Methods Serum were collected from 50 cases during asthmatic attacks, 22 asthmatic children who were in stable conditions, and 20 healthy children. Serum CCSP concentrations were measured by a human CCSP enzyme- linked immunosorbent assay (ELISA). Results Asthmatic children had significantly lower levels of CCSP in serum during asthmatic attacks(P