Abstract:
AIM:To study the changes and mechanisms of protein-tyrosine kinase (PTK) and protein-tyrosine phosphatase (PTP) activities in the hippocamal synaptosome following cerebral ischemia/reperfusion (I/R) in gerbil. METHODS:Transient (15 min) global ischemia was produced by bilateral carotid artery occlusion. Total PTK and PTP activities were measured by [r-32P] incorporation and colorimetric analysis, respectively. Src and proline-rich tyrosine kinase2 (PYK2) activities were measured by immunoprecipitation and [r-32P] incorporation. RESULTS:Total PTK activity increased significantly after I/R, but the PTP activity did not change. The Src activity was much higher than PYK2 activity in sham-operated controls. I/R mainly caused a pronounced increase in Src activity, but not PYK2 activity. The increase in Src activity had no relation to the expression of Src protein. Administration of ketamine (KT) or nifedipine (ND) 20 min before ischemia caused a decrease in total PTK and Src activities, and no change in the PYK2 and PTP activities. CONCLUSION:The increase in PTK activity caused by I/R may be mainly due to the increase in Src activity. This increase in Src activity has no relation to the expression of Src protein. But it is related to the activation of NMDA (N-methyl-D-aspartate) receptor (NR) and L-type voltage-gated calcium channel (L-type VGCC). In other words, the increase in total PTK and Src activities induced by I/R may be mediated via NR and L-type VGCC. The PTP activity did not change during I/R.
journal_name
Acta Pharmacol Sinjournal_title
Acta pharmacologica Sinicaauthors
Pei L,Li Y,Yan JZ,Zhang GY,Cui ZC,Zhu ZMsubject
Has Abstractpub_date
2000-08-01 00:00:00pages
715-20issue
8eissn
1671-4083issn
1745-7254journal_volume
21pub_type
杂志文章abstract:AIM:To study the effect of nociceptin (orphanin FQ), a newly discovered heptadecapeptide, on cholinergic constrictions in isolated trachea and bronchus of rat. METHODS:The electric field stimulation (EFS) induced a monophasic constriction, which was due to an activation of the cholinergic nerves. RESULTS:Nociceptin 0...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:
更新日期:2000-10-01 00:00:00
abstract:AIM:Ischemia/reperfusion is an initial triggering event that leads to gut-induced acute lung injury (ALI). In this study, we investigated whether hypoxia inducible factor-1α (HIF-1α) played a role in the pathogenesis of lung injury induced by trauma and hemorrhagic shock (T/HS). METHODS:Male Wistar rats underwent lapa...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2012.5
更新日期:2012-05-01 00:00:00
abstract:AIM:KCNQ1 and KCNE1 form a complex in human ventricular cardiomyocytes, which are important in maintaining a normal heart rhythm. In the present study we investigated the effects of a homologous series of 1-alkanols on KCNQ1/KCNE1 channels expressed in Xenopus oocytes. METHODS:ECG recording was made in rats injected w...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2015.133
更新日期:2016-01-01 00:00:00
abstract::Telomere shortening is associated with idiopathic pulmonary fibrosis (IPF), a high-morbidity and high-mortality lung disease of unknown etiology. However, the underlying mechanisms remain largely unclear. In this study, wild-type (WT) mice with normal telomeres and generation 3 (G3) or G2 telomerase RNA component (TER...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/s41401-018-0007-9
更新日期:2018-11-01 00:00:00
abstract:AIM:To investigate the effects of 3,4,4'-trihydroxy-trans-stilbene (3,4,4'-THS), an analogue of resveratrol, on human non-small-cell lung cancer (NSCLC) cells in vitro. METHODS:Cell viability of NSCLC A549 cells was determined by MTT assay. Cell apoptosis was evaluated using flow cytometry and TUNEL assay. Cell necros...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2015.46
更新日期:2015-10-01 00:00:00
abstract:AIM:To evaluate the effect of C-C chemokine receptor 3 (CCR3) blockade on pulmonary inflammation and mucus production in allergic mice. METHODS:We used the synthetic peptide of the CCR3 NH2-terminal as the immunizing antigen and generated murine monoclonal antibody against the human CCR3. In addition, the generated an...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1111/j.1745-7254.2007.00635.x
更新日期:2007-11-01 00:00:00
abstract:AIM:The metabolites of naproxen produced by Cunninghamella species were isolated and identified, and further to compare the similarities between microbial transformation and mammalian metabolism. METHODS:Naproxen was transformed by three strains of Cunninghammella species (Cunninghamella blakeslesna AS 3.153, Cunningh...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:
更新日期:2003-05-01 00:00:00
abstract::Androgen and androgen receptor (AR) signaling are crucial for the genesis of prostate cancer (PCa), which can often develop into androgen-ligand-independent diseases that are lethal to the patients. Recent studies show that even these hormone-refractory PCa require ligand-independent AR signaling for survival. As curr...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章,评审
doi:10.1111/j.1745-7254.2007.00683.x
更新日期:2007-09-01 00:00:00
abstract::Alternative splicing is a key process of multi-exonic gene expression during pre-mRNA maturation. In this process, particular exons of a gene will be included within or excluded from the final matured mRNA, and the resulting transcripts generate diverse protein isoforms. Recent evidence demonstrates that approximately...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章,评审
doi:10.1038/aps.2015.43
更新日期:2015-10-01 00:00:00
abstract:AIM:To study the effect of new antihepatitis drug, bicyclol, on the metabolism and hepatotoxicity of aflatoxin B1 (AFB1) in rats. METHODS:Rats were given bicyclol 300 mg/kg/d ig for 3 d and then injected ip with AFB1 1.5 mg/kg. Liver damages were examined 16 h after ip AFB1. The in vitro metabolism of AFB1 by bicyclol...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:
更新日期:2002-10-01 00:00:00
abstract:AIM:To examine the effects of microinjection of melatonin and its receptor antagonists into the anterior hypothalamic area (AHA) on blood pressure (BP) and heart rate (HR) in normotensive and stress-induced hypertensive rats. METHODS:Melatonin and its receptor antagonists were microinjected into the AHA, then BP, mean...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:
更新日期:2001-11-01 00:00:00
abstract::Recent evidence shows that high glucose levels recruit carbohydrate response element-binding protein, which binds the promoter of thioredoxin-interacting protein (txnip), thereby regulating its expression in β-cells. Overexpression of txnip not only induces β-cell apoptosis but also reduces insulin production. Thus, t...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2017.15
更新日期:2017-07-01 00:00:00
abstract:AIM:To study the synaptic mechanisms involved in the 5-hydroxytryptamine1A/7 (5-HT1A/7) receptor-mediated reflex control of cardiac vagal preganglionic neurons (CVPN). METHODS:CVPN were retrogradely labeled and identified in brain stem slices of newborn rats, and their synaptic activity was examined using whole-cell p...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1111/j.1745-7254.2008.00745.x
更新日期:2008-05-01 00:00:00
abstract::Autophagy is a cell self-digestion process via lysosomes that clears "cellular waste", including aberrantly modified proteins or protein aggregates and damaged organelles. Therefore, autophagy is considered a protein and organelle quality control mechanism that maintains normal cellular homeostasis. Dysfunctional auto...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章,评审
doi:10.1038/aps.2012.188
更新日期:2013-05-01 00:00:00
abstract::Type capital I, Ukrainian natural killer T cells (NKT cells), a subset of CD1d-restricted T cells with invariant Valphabeta TCR, are characterized by prompt production of large amounts of Th1 and/or Th2 cytokines upon primary stimulation through the TCR complex. The rapid release of cytokines implies that type capital...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章,评审
doi:10.1038/aps.2010.119
更新日期:2010-09-01 00:00:00
abstract:AIM:The purpose of this study was to reveal the effects of hepatocyte growth factor (HGF) variants on human breast cancer cells and the differential signaling pathways of the variants in controlling cell proliferation and invasion. METHODS:Four HGF variants (NK1, NK2, NK3, and NK4) were created by gene engineering, an...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1111/j.1745-7254.2008.00799.x
更新日期:2008-06-01 00:00:00
abstract:AIM:To determine whether mycophenolate mofetil (MMF) has beneficial effects on refractory idiopathic thrombocytopenic purpura (ITP) and the corresponding cellular mechanism. METHODS:Twenty refractory ITP patients resistant to corticosteroid and/or splenectomy and chemical therapy were given MMF 1.5-2.0 g/d orally for ...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1111/j.1745-7254.2005.00088.x
更新日期:2005-05-01 00:00:00
abstract:AIM:To investigate the effects of the cardiotonic steroid, ouabain, on cardiac differentiation of murine embyronic stem cells (mESCs). METHODS:Cardiac differentiation of murine ESCs was enhanced by standard hanging drop method in the presence of ouabain (20 μmol/L) for 7 d. The dissociated ES derived cardiomyocytes we...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2010.188
更新日期:2011-01-01 00:00:00
abstract:AIM:To discover novel ligands of estrogen receptor (ER) β using pharmacophore mapping and structure-based screening. METHODS:A computer-aided strategy combining pharmacophore mapping and structure-based screening was used to screen the Maybridge and Enamine databases. Yeast two-hybrid (Y2H) assay was used to detect th...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2014.69
更新日期:2014-10-01 00:00:00
abstract:AIM:To investigate the effects of onychin on the proliferation of cultured rat artery vascular smooth muscle cells (VSMCs) in the presence of 10% new-born calf serum (NCS). METHODS:Rat VSMCs were incubated with onychin 150 micromol/L or genistein 10 micromol/L in the presence of 10% NCS for 24 h. The proliferation of ...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1111/j.1745-7254.2005.00526.x
更新日期:2005-02-01 00:00:00
abstract:AIM:To explore the action mechanism of antidepressants. METHODS:The PC12 cell proliferation was detected by flow cytometry. The proliferation of hippocampal progenitor cells and level of brain-derived neurotrophic factor (BDNF) were measured by immunohistochemistry. RESULTS:Treatment with N-methylaspartate (NMDA) 600...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:
更新日期:2004-11-01 00:00:00
abstract:AIM:To investigate molecular mechanism of testis development and spermatogenesis. METHODS:A human testis cDNA microarray was hybridized with probes from human adult testis, embryo testis and human sperm, and the differential expressed clones were sequenced and analyzed. Expression of PIAS-NY gene was analyzed by RT-PC...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:
更新日期:2004-08-01 00:00:00
abstract::Korean Panax ginseng C A Meyer is mainly used to maintain the homeostasis of the body, and the pharmacological efficacy of Korean ginseng identified by modern science includes improved brain function, pain-relieving effects, preventive effects against tumors as well as anti-tumor activity, enhanced immune system funct...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章,评审
doi:10.1111/j.1745-7254.2008.00869.x
更新日期:2008-09-01 00:00:00
abstract::Esophageal cancer is one of the most common types of cancer in the world, and it demonstrates a distinct geographical distribution pattern in China. In the last decade, inducing apoptosis with traditional Chinese medicine (TCM) has become an active area in both fundamental and clinical research on cancer therapy. In t...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章,评审
doi:10.1038/aps.2015.116
更新日期:2016-03-01 00:00:00
abstract::Cocaine is one of the most abused illicit drugs worldwide. It is well known that the dopamine (DA) transporter is its major target; but cocaine also acts on other targets including nicotinic acetylcholine receptors (nAChRs). In this study, we investigated the effects of cocaine on a special subtype of neuronal nAChR, ...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/s41401-019-0276-y
更新日期:2020-02-01 00:00:00
abstract:AIM:To study the effects of the caspase-1 inhibitor Ac-YVAD-CHO on quinolinic acid (QA)-induced apoptosis. METHODS:Rats were pre-treated with intrastriatal infusion of Ac-YVAD-CHO (2-8 microg) before intrastriatal injection of QA (60 nmol). Striatal total proteins, genomic DNA, and nuclear proteins were isolated. The ...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1111/j.1745-7254.2005.00525.x
更新日期:2005-02-01 00:00:00
abstract::The therapeutic outcome of chemotherapy is severely limited by intrinsic or acquired drug resistance, the most common causes of chemotherapy failure. In the past few decades, advancements in nanotechnology have provided alternative strategies for combating tumor drug resistance. Drug-loaded nanoparticles (NPs) have se...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章,评审
doi:10.1038/aps.2016.84
更新日期:2017-01-01 00:00:00
abstract:AIM:To investigate the effects of trans-cinnamaldehyde (TCA) on the human leukemia K562 cell line and the cytotoxicity of cytokine-induced killer (CIK) cells against K562 cells. METHODS:Apoptosis, Fas expression, and mitochondrial transmembrane potential in K652 cells were analyzed using flow cytometry. K562 cells wer...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2010.76
更新日期:2010-07-01 00:00:00
abstract:AIM:To investigate the pharmacokinetic profile and tissue distribution of a novel phosphodiesterase type 5 inhibitor, 5-ethyl-2-{5-[4-(2-hydroxy-ethyl)-piperazine-1-sulfonyl]-2-propoxy-phenyl}-7-propyl-3,5-dihydro-pyrrolo(3,2-d)pyrimidin-4-one (SK-3530), in rats after administration of the (14)C-labeled compound. METH...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1111/j.1745-7254.2007.00611.x
更新日期:2007-08-01 00:00:00
abstract:AIM:To study the antioxidant, activity of Qizhu Tang (QZT) both in vivo and in vitro. METHODS:QZT consists of 4 herbal constituents (Rhizoma Atractylodis Macrocephalae, Poria cocos, Kadix Notoginseng, and Radix Astragali), each of the components and their combinations were examined in vitro for 1, 1-diphenyl-2-picrylh...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:
更新日期:2000-12-01 00:00:00