Time filter

Source Type

Wang S.,Capital Medical University | Zhou T.,Capital Medical University | Zhai J.-P.,Capital Medical University | Wang L.-H.,Beijing Institute of Traditional Chinese Medicine | Chen J.,Capital Medical University
Chinese Journal of Integrative Medicine | Year: 2014

Objective: To investigate the effects of Modified Sanhuang Decoction (加味三黄汤, MSD) enema on the serum tumor necrosis factor alpha (TNF-α) and colonic mucosa interleukin-1β (IL-1β), interleukin-6 (IL-6) levels in experimental ulcerative colitis (UC) rats.Methods: Forty-five male Wistar rats were randomly divided into 4 groups: normal group (n=12), model group (n=11), salazosulfapyridine (SASP) group (n=11) and MSD group (n=11). The UC model was induced by 2,4,6-trinitrobenzene sulfonic acid (TNBS)/ethanol solution. Rats in the normal group and model group were clystered with 0.9% normal saline, while in the SASP group and MSD group were clystered with SASP and MSD enema, respectively. After drug administration (10 mL/kg body weight, for 7 days), colonic gross changes and colonic mucosa histology were observed, serum TNF-α and colonic mucosa IL-1β, IL-6 levels were tested by enzyme linked immunosorbent assay and radioimmunoassay, respectively.Results: As compared with the normal group, the experimental UC rats, the colonic mucosal damage index scores (CMDIs), histopathological scores (HS) and the serum TNF-α and colonic mucosa IL-1β, IL-6 levels significantly increased (P<0.05 or P<0.01). In the MSD and SASP groups, the ulcer area significantly reduced, and edema disappeared. The CMDIs, HS, the serum TNF-α and colonic mucosa IL-1β, IL-6 levels in the MSD and SASP groups significantly decreased (P<0.05 or P<0.01) compared with the model group. The CMDIs in the MSD group were lower than that in the SASP group (P<0.05), but there were no significant differences in HS, serum TNF-α or colonic mucosa IL-1β, IL-6 levels between the MSD and SASP groups.Conclusion: MSD enema can improve colonic mucosa impairment and decrease serum TNF-α and colonic mucosa IL-1β, IL-6 levels in experimental UC. © 2013, Chinese Association of the Integration of Traditional and Western Medicine and Springer-Verlag Berlin Heidelberg. Source

Han D.,China Agricultural University | Wan C.,China Agricultural University | Liu F.,China Agricultural University | Xu X.,Beijing Institute of Traditional Chinese Medicine | And 2 more authors.
Evidence-based Complementary and Alternative Medicine | Year: 2016

Jujuboside A is a kind of the saponins isolated from the seeds of Ziziphus jujuba, which possesses multiple biological effects, such as antianxiety, antioxidant, and anti-inflammatory effects; however, its mediatory effect on isoproterenol-stimulated cardiomyocytes has not been investigated yet. In this study, we tried to detect the protective effect and potential mechanism of JUA on ISO-induced cardiomyocytes injury. H9C2 cells were treated with ISO to induce cell damage. Cells were pretreated with JUA to investigate the effects on the cell viability, morphological changes, light chain 3 conversion, and the activation of PI3K/Akt/mTOR signaling pathway. Results showed that ISO significantly inhibited the cell viability in a time-and dose-dependent manner. JUA pretreatment could reverse the reduction of cell viability and better the injury of H9C2 cells induced by ISO. Western blot analysis showed that JUA could accelerate the phosphorylation of PI3K, Akt, and mTOR. Results also indicated that JUA could significantly decrease the ratio of microtubule-associated protein LC3-II/I in H9C2 cells. Taken together, our research showed that JUA could notably reduce the damage cause by ISO via promoting the phosphorylation of PI3K, Akt, and mTOR and inhibiting LC3 conversion, which may be a potential choice for the treatment of heart diseases. © 2016 Dandan Han et al. Source

Zhang Z.-H.,Capital Medical University | Shi G.-X.,Capital Medical University | Li Q.-Q.,Capital Medical University | Wang Y.-J.,Capital Medical University | And 4 more authors.
International Journal of Neuroscience | Year: 2014

Background and Purpose: An ideal animal model to explore that pathogenesis and prevention of dementia is essential. The present study was designed to compare the difference of behavior and cerebral blood flow of the two vascular dementia rat models at different time intervals. Methods: The rats were randomly allocated to three groups: bilateral common carotid artery occlusion (BCCAO) group, thromboembolism (TE) group and sham-operated (SHAM) group. The performance in the Morris water maze (MWM) was analyzed at 7, 14 and 28 d after operation and cerebral blood flow (CBF) was analyzed at 28 days after operation. Result: The results showed that the two models exhibited longer latency, less times to crossing platform in MWM and lower CBF than the SHAM rats. Compared with the TE rats, the BCCAO rats have a significant prolongation of escape latency at 7 days and 28 days. In the probe trial, the BCCAO rats showed less number of times across the platform. Conclusion: The BCCAO rats maybe provide a more useful model to study the physiopathological mechanisms of cognitive impairment related to chronic cerebral ischemia. © 2014 Informa Healthcare USA, Inc. Source

Kang Q.,Capital Medical University | Liu W.,Capital Medical University | Liu W.,Beijing Institute of Traditional Chinese Medicine | Liu H.,Capital Medical University | And 2 more authors.
Evidence-based Complementary and Alternative Medicine | Year: 2015

Compound Chuanxiong Capsule (CCC), a Chinese herbal compound, can exhibit antiatherosclerotic effect; however, its mechanism is still unclear. This study is designed to study the mechanism of CCC on atherosclerosis in the ApoE-knockout (ApoE-/-) mice fed with a high-fat diet. After 6 weeks of high-fat feeding, 40 ApoE-/- mice were randomized (n = 10) and treated with lipitor, high-dose or low-dose CCC, or distilled water (ApoE-/- group) for 7 weeks. The blood lipids in serum and the plaque areas of the mice were measured and the mRNA expressions of phosphatidylinositol-3-kinases (PI3K), Akt, nuclear factor-kappa B (NF-B), tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6) of the aortae were determined. The data showed that CCC can significantly decrease the levels of blood lipids, atherosclerosis index, and plaque areas and increase collagen proportion in plaques as compared with the untreated mice (p < 0.05, p < 0.01). In addition, CCC can significantly reduce the mRNA expressions of PI3K, Akt, NF-B, IL-6, and TNF-α in the mice fed with a high-fat diet (p < 0.001). Thus, we concluded that CCC can inhibit inflammatory reaction in the ApoE-/- mice fed with a high-fat diet. This mechanism may be attributed to regulating PI3K/Akt/NF-B signaling pathway. © 2015 Qunfu Kang et al. Source

Peng B.,Beijing Institute of Traditional Chinese Medicine | Bai R.-F.,Beijing University of Chinese Medicine | Li P.,Beijing Institute of Traditional Chinese Medicine | Han X.-Y.,Beijing Institute of Traditional Chinese Medicine | And 4 more authors.
Journal of Asian Natural Products Research | Year: 2016

Phytochemical investigation on the aqueous extract from Dryopteris fragrans led to the isolation of one new chromone glycoside, frachromone C (1), and one new coumarin glycoside, dryofracoulin A (2), together with one known undulatoside A (3). Their structures were elucidated by a combination of 1D and 2D NMR, HRMS, and chemical analysis. Compounds 1-3 exhibited inhibition on nitric oxide production in lipopolysaccharide induced RAW 264.7 macrophages with their IC50 values of 45.8, 65.8, and 49.8 μM, respectively. © 2015 Taylor and Francis. Source

Discover hidden collaborations