Tianjin University of Traditional Chinese Medicine is the name of a university in Tianjin, China under the municipal government. As the name implies, it specializes in traditional Chinese medicine. Wikipedia.
Gao L.-N.,Tianjin University of Traditional Chinese Medicine |
Cui Y.-L.,Tianjin University of Traditional Chinese Medicine |
Wang Q.-S.,Tianjin University of Traditional Chinese Medicine |
Wang S.-X.,Tianjin University of Traditional Chinese Medicine
Journal of Ethnopharmacology | Year: 2013
Ethnopharmacological relevance Systemic inflammatory response syndrome (SIRS), leading to dire consequences, is a serious and fatal disease in clinic. Danhong injection (DHI), one of the most popular medications for coronary heart disease and cerebral ischemia, plays pharmacological actions through inhibiting local inflammation. Nevertheless, the anti-inflammatory effect of DHI has not been reported before and has not been fully clarified. Aim of the study In this study, a model of systemic acute inflammatory reaction was induced by lipopolysaccharide (LPS) to investigate whether DHI could be applied to SIRS through the anti-inflammatory effect. Material and methods The anti-inflammatory effect of DHI in vivo was evaluated in ICR mice pretreated intraperitoneally (i.p.) with LPS (1 mg/kg) and the serum, liver and kidney were collected. Interleukin (IL)-6, tumor necrosis factor (TNF)-α and monocyte chemotactic protein (MCP-1) in serum were measured by enzyme-linked immunosorbent assay (ELISA) and the mRNA expressions of inducible NO synthase (iNOS), IL-6, interleukin (IL)-1β, MCP-1 in mice liver and kidney were analyzed by quantitative real-time reverse-transcription polymerase chain reaction (real-time RT-PCR). Meanwhile, Proteome profiler array was used to screen the acute phase proteins, cytokines and chemokines activated in the acute inflammation. The inflammatory model of macrophages stimulated by LPS (0.2 μg/mL) was used to evaluate the anti-inflammatory mechanism of DHI in vitro. The secretion of nitric oxide (NO) was measured by the Griess reagent system. The productions of prostaglandin E2 (PGE2), IL-6, TNF-α and MCP-1 were detected using ELISA, and the protein expression of cyclooxygenase (COX)-2 was determined by cell-based ELISA. As well, the mRNA expressions of these inflammatory factors were detected by real-time RT-PCR. Results DHI could attenuate the inflammatory reaction via decreasing 20 cytokines and acute phase proteins analyzed by Proteome profile array in serum. The secretions of IL-6, TNF-α and MCP-1 in serum were coincidence with the result of Proteome profile array. Meanwhile, the mRNA expressions of iNOS, IL-6, IL-1β, MCP-1 in mice liver and kidney were significantly reduced by DHI. Experiments performed in vitro further revealed that the productions of NO, PGE2 and the mRNA expressions of iNOS, COX-2 were notably inhibited by DHI. Cell-based ELISA revealed that the COX-2 protein expression was diminished by DHI. The results of ELISA demonstrated that DHI significantly down-regulated the protein productions of IL-6 and MCP-1. Furthermore, the mRNA expressions of iNOS, COX-2, TNF-α, IL-1β, IL-6 and MCP-1 analyzed by real-time RT-PCR were suppressed by DHI. Conclusions These results demonstrate that DHI exerts the protective effect through inhibiting the expressions of iNOS, COX-2, IL-1β, IL-6, MCP-1 and TNF-α, which elucidate that DHI may be a strongly multi-target Chinese medicine injection on improving the inflammatory diseases. © 2013 Elsevier Ireland Ltd.
Xing M.-N.,Tianjin University |
Zhang X.-Z.,Tianjin University of Traditional Chinese Medicine |
Huang H.,Tianjin University
Biotechnology Advances | Year: 2012
Feedstock for biofuel synthesis is transitioning to lignocelluosic biomass to address criticism over competition between first generation biofuels and food production. As microbial catalysis is increasingly applied for the conversion of biomass to biofuels, increased import has been placed on the development of novel enzymes. With revolutionary advances in sequencer technology and metagenomic sequencing, mining enzymes from microbial communities for biofuel synthesis is becoming more and more practical. The present article highlights the latest research progress on the special characteristics of metagenomic sequencing, which has been a powerful tool for new enzyme discovery and gene functional analysis in the biomass energy field. Critical enzymes recently developed for the pretreatment and conversion of lignocellulosic materials are evaluated with respect to their activity and stability, with additional explorations into xylanase, laccase, amylase, chitinase, and lipolytic biocatalysts for other biomass feedstocks. © 2012 Elsevier Inc.
Yuan J.,Beijing University of Chemical Technology |
Hao C.,Tianjin University of Traditional Chinese Medicine
Solar Energy Materials and Solar Cells | Year: 2013
The reduction of CO2 into solar fuel is not only beneficial to the reduction of CO2 emission, but also beneficial to the release of energy shortage. In this study, a solar-driven photoelectrochemical reduction reaction of CO2 to methanol is conducted using a chalcopyrite p-CuInS2 thin film as a photocathode. The CuInS2 thin film is fabricated by electrodeposition of Cu-In alloy layer followed by sulfurization. With pyridinium ion as the co-catalyst, the photoelectrochemical reduction of CO2 to methanol can occur at the overpotential of 20 mV with the faradaic efficiency of 97%. © 2012 Elsevier B.V.
Zhu J.,Tianjin University of Traditional Chinese Medicine
PloS one | Year: 2013
Shenfu injection (SFI), derived from the ancient traditional Chinese medicine (Red Radix Ginseng and Radix Aconitum Carmichaeli), has been widely used in the clinical for the treatment of cardiovascular diseases for more than 20 years. The present study aims to investigate the effects of SFI and its main components on the contraction of isolated rat thoracic aorta rings and the potential mechanisms of this action. The isolated rat thoracic aorta rings were initially treated with different concentrations of SFI, Hongshen injection (HSI, mainly containing ginsenoside) or Fupian injection (FPI, mainly containing aconite total alkaloids) separately. The control group was added an equal volume Krebs-Henseleit (K-H) solution. All three injections exhibited no obviously effects on the basal tension of the rings in the resting state. However, in the isolated thoracic aorta rings with intact endothelium, when the rings were first induced by 60 mM potassium chloride (KCl) or 1 μM norepinephrine (NE) to the maximal contraction and then treated with above injections, SFI and HSI significantly inhibited the vasoconstriction induced by KCl or NE. In addition, FPI has a tendency to inhibit KCl-induced vasoconstriction and facilitate NE-induced vasoconstriction, but no significant difference. None of them showed obvious effect on the endothelium denuded vessels. Moreover, this procedure was repeated after pre-incubation of nitric oxide synthase (NOS) inhibitor N(G)-nitro- L-arginine methyl ester (L-NAME), which suppressed the vasorelaxation effect of SFI and HSI. These results demonstrate that both SFI and HSI caused an apparent thoracic aorta relaxation by endothelium-dependent manner, which was associated with eNOS system, while FPI had no detectable vasodilator effect. This suggested that the ginsenoside from red Radix Ginseng may be the main active ingredient of SFI's vasodilator effect.
Yuan Z.,Tianjin University of Traditional Chinese Medicine
Zhongguo Zhong xi yi jie he za zhi Zhongguo Zhongxiyi jiehe zazhi = Chinese journal of integrated traditional and Western medicine / Zhongguo Zhong xi yi jie he xue hui, Zhongguo Zhong yi yan jiu yuan zhu ban | Year: 2012
To investigate the effects of ferulic acid on the migration of vascular smooth muscle cells (VSMCs) and its correlated mechanisms. VSMCs were in vitro cultured. Under the vascular endothelial growth factor (VEGF) induced conditions, the VSMCs migration were detected using the scratch test and the invasion assay after intervened by ferulic acid. The effects on the mRNA expressions of matrix metalloproteinase, (MMP)-2 and MMP-9 were detected using RT-PCR. The effects on the protein expressions of the tissue inhibitor of metalloproteinase-1 (TIMP-1) and TIMP-2 were detected using Western blot. (1) Ferulic acid (10(2) ng/mL and 10(3) ng/mL) could inhibit VEGF-induced VSMCs migration. (2) Ferulic acid (10(2) ng/mL and 10(3) ng/mL) could down-regulate the VEGF-induced VSMCs migration by inhibiting MMP-9 mRNA expression. (3) Ferulic acid (10(2) ng/mL and 10(3) ng/mL) up-regulated VEGF-induced VSMCs TIMP-2 protein expressions. Ferulic acid (10(2) ng/mL and 10(3) ng/mL) could inhibit VEGF-induced VSMCs migration by inhibiting the MMP-9 mRNA expression, and increasing the TIMP-2 protein expression.
He X.,Tianjin University of Traditional Chinese Medicine
BMC complementary and alternative medicine | Year: 2014
Yanhusuo (Corydalis yanhusuo W.T. Wang; YHS), is a well-known traditional Chinese herbal medicine, has been used in China for treating pain including chest pain, epigastric pain, and dysmenorrhea. Its alkaloid ingredients including tetrahydropalmatine are reported to inhibit cytochromes P450 (CYPs) activity in vitro. The present study is aimed to assess the potential of total alkaloid extract (TAE) from YHS to effect the activity and mRNA levels of five cytochromes P450 (CYPs) in rat. Rats were administered TAE from YHS (0, 6, 30, and 150 mg/kg, daily) for 14 days, alanine aminotransferase (ALT) levels in serum were assayed, and hematoxylin and eosin-stained sections of the liver were prepared for light microscopy. The effects of TAE on five CYPs activity and mRNA levels were quantitated by cocktail probe drugs using a rapid chromatography/tandem mass spectrometry (LC-MS/MS) method and reverse transcription-polymerase chain reaction (RT-PCR), respectively. In general, serum ALT levels showed no significant changes, and the histopathology appeared largely normal compared with that in the control rats. At 30 and 150 mg/kg TAE dosages, an increase in liver CYP2E1 and CYP3A1 enzyme activity were observed. Moreover, the mRNA levels of CYP2E1 and CYP3A1 in the rat liver, lung, and intestine were significantly up-regulated with TAE from 6 and 30 mg/kg, respectively. Furthermore, treatment with TAE (150 mg/kg) enhanced the activities and the mRNA levels of CYP1A2 and CYP2C11 in rats. However, the activity or mRNA level of CYP2D1 remained unchanged. These results suggest that TAE-induced CYPs activity in the rat liver results from the elevated mRNA levels of CYPs. Co-administration of prescriptions containing YHS should consider a potential herb (drug)-drug interaction mediated by the induction of CYP2E1 and CYP3A1 enzymes.
Tianjin University of Traditional Chinese Medicine | Date: 2010-10-14
Use of chemical ingredients in Cynomorium as phytoestrogen is provided by the present invention. Particularly, use of Cynomorium, extracts of Cynomorium, or at least one ingredient chosen from chrysophanol, emodin, catechin, ()-epicatechin-3-O-gallate, naringenin-4-O-glucopyranoside, and phlorizin, in manufacturing medicaments for treating and/or preventing diseases related to insufficient of estrogen secretion in mammal (for example, human), or use in manufacturing medicaments used as phytoestrogens is provided by the present invention. The extracts of Cynomorium, compositions containing extracts of Cynomorium or active ingredients thereof, and methods of treating and/or preventing diseases related to insufficient of estrogen secretion are also provided by the present invention. According to the present invention, Cynomorium, extracts of Cynomorium, active ingredients thereof may be used to treat and/or prevent menopausal syndrome, osteoporosis, degenerative osteoporosis, cardiovascular and cerebrovascular diseases and breast cancer.
Li X.L.,Tianjin University of Traditional Chinese Medicine
African journal of traditional, complementary, and alternative medicines : AJTCAM / African Networks on Ethnomedicines | Year: 2013
The objective of this study was to investigate the effectiveness and specific effects of acupuncture on ischemic-induced damage in rats after permanent middle cerebral artery occlusion. Cerebral ischemia was induced by middle cerebral artery occlusion in male Wistar rats. The rats were divided into the following 4 groups: normal controls, ischemic, real acupuncture-treated (Shuigou, DU26), and non-acupoint-treated groups. On the third postoperative day, neurological deficit scores, cerebral blood flow, infarction volume, and neuronal cell death counts were measured. In the real acupuncture-treated group, the neurological deficit scores and cerebral blood flow were improved (p < 0.05) and the infarction volume and neuronal cell death counts were reduced (p < 0.01) compared to the ischemic and non-acupoint-treated groups. The present study demonstrated that real acupuncture was effective against focal ischemia-induced damage in rats after middle cerebral artery occlusion, and the effects were specifically related to the right needling location.
Bai X.X.,Tianjin University of Traditional Chinese Medicine
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials | Year: 2013
To study the phenolic constituents from Ampelopsis grossedentata. Compounds were isolated using column chromatographic techniques (silica gel, polyamide gel, Sephadex LH-20) and semi-preparative HPLC. Structures were elucidated on the basis of spectral data (NMR and HR-MS). Eight compounds were isolated and identified as ampelopsin (I), 5, 7, 3',4',5'-pentahydroxyflavanone (II), galloyl-beta-D-glucopyranoside (III), gallic acid (IV), ethyl gallate (V), myricitrin (VI), (2R, 3S)-5,7,3',4',5'-pentahydroxyflavanonol (VII) and myricetin (VIII). Compounds II and VII are obtained from this genus for the first time.
Tianjin University of Traditional Chinese Medicine | Date: 2013-08-21
Use of chemical ingredients in Cynomorium as phytoestrogen is provided by the present invention. Particularly, use of Cynomorium, extracts of Cynomorium, or at least one ingredient chosen from chrysophanol, emodin, catechin, (-)-epicatechin-3-O-gallate, naringenin-4-O-glucopyranoside, and phlorizin, in manufacturing medicaments for treating and/or preventing diseases related to insufficient secretion of estrogen in mammal (for example, human), or use in manufacturing medicaments used as phytoestrogens is provided by the present invention. The extracts of Cynomorium, compositions containing extracts of Cynomorium or active ingredients thereof are also provided by the present invention. According to the present invention, Cynomorium, extracts of Cynomorium, active ingredients thereof may be used to treat and/or prevent menopausal syndrome, osteoporosis, degenerative osteoporosis, cardiovascular and cerebrovascular diseases and breast cancer.