Abstract:
:Hyperglycemia, which occurs under the diabetic condition, induces serious diabetic complications. Diabetic neuropathies, affecting the autonomic, sensory, and motor peripheral nervous system, are among the most frequent complications of diabetes. Little is known about the direct toxic effect of high glucose concentrations on neuronal cells. Therefore in the present study, glucose-induced toxicity was studied in PC12 cells as an in vitro cellular model for diabetic neuropathy using the MTT assay. The possible role of apoptosis was also investigated in this toxicity. The result showed that a 3-fold increase in optimum glucose concentration for PC12 cells (13.5 mg/ml) significantly reduced cell viability after 48 h. In Western blot analysis, the ratio of Bax/Bcl-2 protein expression in cells treated with high glucose was significantly increased compared to controls. Additionally high glucose could induce a DNA ladder pattern in PC12 cells, a hallmark of apoptosis indicating nuclear fragmentation. From our present results, it may be concluded that high glucose can cause PC12 cell death, in which apoptosis plays an important role possibly by the mitochondrial pathway through higher expression of Bax pro-apoptotic protein.
journal_name
J Pharmacol Scijournal_title
Journal of pharmacological sciencesauthors
Sharifi AM,Mousavi SH,Farhadi M,Larijani Bdoi
10.1254/jphs.fp0070258subject
Has Abstractpub_date
2007-07-01 00:00:00pages
258-62issue
3eissn
1347-8613issn
1347-8648pii
JST.JSTAGE/jphs/FP0070258journal_volume
104pub_type
杂志文章abstract::Epigenetics is a mechanism that regulates gene expression not depending on the underlying DNA sequence, but on the chemical modifications of DNA and histone proteins. Defects in the factors involved in epigenetic regulation cause congenital neurodevelopmental diseases, and thus, epigenetic regulation is essential for ...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章,评审
doi:10.1254/jphs.09r20fm
更新日期:2010-01-01 00:00:00
abstract::By using immunofluorostaining and confocal laser microscopy, acetylcholine-induced translocation of RhoA was visualized in freshly isolated bronchial smooth muscle cells of the rat. The cellular distribution of RhoA at rest was observed uniformly in the cytosolic space with no staining in the nucleus, whereas acetylch...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.sc0040031
更新日期:2004-08-01 00:00:00
abstract::The critical role played by the renin-angiotensin-aldosterone system (RAAS) in the regulation of blood pressure and body fluid homeostasis has been well recognized. Angiotensin (Ang) II and aldosterone are the most powerful biologically active products of the RAAS, although there are also other bioactive Ang peptides ...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章,评审
doi:10.1254/jphs.10r03fm
更新日期:2010-01-01 00:00:00
abstract::The beneficial effects of physical activity for pain are denominated exercise-induced hypoalgesia (EIH). Here, we examined the age-related change and potential role of the neurosteroid allopregnanolone (ALLO) on EIH in rats. Adult and aged rats were randomly divided into one of three groups; non-exercise control, Low-...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1016/j.jphs.2018.11.009
更新日期:2019-02-01 00:00:00
abstract::Simultaneous administration of psychostimulants and opioids is a major drug abuse problem worldwide. This combination appears to produce synergistic effects on behavior at low doses; however, there is little direct evidence that the combination is stronger than either drug alone. Therefore, we investigated interaction...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.fpj04039x
更新日期:2004-12-01 00:00:00
abstract::We previously reported that NG108-15 cells contain intrinsic serotonin 2C receptor (5-HT2CR). The effects of imipramine, a 5-HT2CR antagonist, on cell growth, cell viability, and the 5-HT2CR mRNA level were investigated in this study. Repeated treatment with imipramine at concentrations of 1 - 10 microM for 5 days inh...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.92.433
更新日期:2003-08-01 00:00:00
abstract::Boron neutron capture therapy (BNCT) is a radiotherapy utilizing the neutron capture and nuclear fission reaction of 10B taken up into tumor cells. The most commonly used boron agent in BNCT, p-borono-l-phenylalanine (BPA), is accumulated in tumors by amino acid transporters upregulated in tumor cells. Here, by using ...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1016/j.jphs.2019.01.012
更新日期:2019-03-01 00:00:00
abstract::In conventional relative gene expression analysis (Northern blotting, RT-PCR, and in situ hybridization), housekeeping genes such as the glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and beta-actin genes, whose expression levels are considered stable, have been used as control genes for normalization of RNA quantit...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.fp0050881
更新日期:2006-05-01 00:00:00
abstract::We aimed to examine the rate of thrombotic events after discontinuation of one year clopidogrel therapy in patients with implanted coronary stent, and to determine platelet aggregability by multiple electrode analyzer after cessation of clopidogrel. This prospective, multicenter study enrolled 200 patients subjected t...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.11076fp
更新日期:2011-01-01 00:00:00
abstract::Stiffness and cytokine in blood levels show 24-h rhythms in rheumatoid arthritis (RA) patients. We previously revealed that higher therapeutic effects were obtained in RA patients and RA model animals when the dosing time of methotrexate was chosen according to the 24-h rhythms to cytokine. In this study, we examined ...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.11029fp
更新日期:2011-01-01 00:00:00
abstract::RhoA upregulation has been suggested in bronchial smooth muscles (BSMs) of asthmatic rats. Here, we cloned/characterized the 5'-promoter region of the rat rhoA. A transcription-initiation site was identified at 66-bp upstream of the reference sequence, GenBank-BC061732. Luciferase assay using interleukin-13 (IL-13)-st...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.09346sc
更新日期:2010-01-01 00:00:00
abstract::Polycyclic aromatic hydrocarbons (PAHs) and dioxins are ubiquitous environmental pollutants and activate the aryl hydrocarbon receptor (AhR), a ligand-activated transcription factor. It has been reported that testosterone represses 2,3,7,8-tetrachlorodibenzo-p-dioxin-induced transcription of the cytochrome P450 (CYP) ...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.08328fp
更新日期:2009-03-01 00:00:00
abstract::Farnesoid X receptor (FXR) controls the expression of critical genes in bile acid and cholesterol homeostasis. To study FXR and to develop a regulator of cholesterol, some non-steroidal and steroidal ligands have been found in addition to endogenous ligands for FXR. In this study, we discovered five bile acid derivati...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.08006fp
更新日期:2008-07-01 00:00:00
abstract::Lig-8, a lignophenol derivative from bamboo lignin, potently suppresses oxidative stress-induced apoptosis. Here, we first examined in vitro whether lig-8 protects against neuronal damage induced by oxygen-glucose deprivation (OGD) followed by reoxygenation, tunicamycin [endoplasmic reticulum (ER)-stress inducer], or ...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.fp0060711
更新日期:2006-10-01 00:00:00
abstract::Mosapride citrate (mosapride), a prokinetic agent with 5-HT(4)-receptor agonistic activity, is known to enhance gastric emptying and alleviate symptoms in patients with functional dyspepsia (FD). As hyperalgesia and delayed gastric emptying play an important role in the pathogenesis of FD, we used in this study balloo...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.11012fp
更新日期:2011-01-01 00:00:00
abstract::A segment of guinea pig ileum was used to confirm the hypothesis that [6]-gingerol and lafutidine interact with capsaicin-sensitive neurons. Addition of 30 and 100 microM [6]-gingerol (a pungent constituent of ginger) induced contraction of the ileum immediately. Like capsaicin, [6]-gingerol-induced contraction was in...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.92.359
更新日期:2003-08-01 00:00:00
abstract::Peripheral-type benzodiazepine receptor (PBR) and central-type benzodiazepine receptor (CBR) in salivary gland play a role in the inhibitory regulation of salivary secretion in rodents. Diazepam-binding inhibitor (DBI), an endogenous ligand for PBR, produces neurosteroids, which modulate CBR activity. In this study, w...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.10282FP
更新日期:2011-01-01 00:00:00
abstract::The hippocampus is a brain region well-known to exhibit structural and functional changes in temporal lobe epilepsy. Studies analyzing the brains of patients with epilepsy and those from animal models of epilepsy have revealed that microglia are excessively activated, especially in the hippocampus. These findings sugg...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章,评审
doi:10.1016/j.jphs.2020.09.003
更新日期:2020-12-01 00:00:00
abstract::Antihistamines inhibit histamine signaling by blocking histamine H1 receptor (H1R) or suppressing H1R signaling as inverse agonists. The H1R gene is upregulated in patients with pollinosis, and its expression level is correlated with the severity of nasal symptoms. Here, we show that antihistamine suppressed upregulat...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1016/j.jphs.2016.02.002
更新日期:2016-04-01 00:00:00
abstract::Cardiovascular diseases are the most frequent and costly complication of diabetes. Many previous studies showed that ATP-sensitive potassium channels (K(ATP)) and inward rectifier potassium channels (Kir) play important regulatory roles in functions of cardiovascular tissues. It's still not very clear how these potass...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.93.478
更新日期:2003-12-01 00:00:00
abstract::Heat shock protein 90 (HSP90) antagonists are currently being evaluated as potential anticancer drugs. However, adverse effects related to these drugs, such as fatigue and pain, suggest that they affect neurons. Therefore, to understand the influence of HSP90 inhibitors on neurons, we investigated the effects of gelda...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1016/j.jphs.2019.07.011
更新日期:2019-07-01 00:00:00
abstract::Sneezing and persistent itching of the nasal mucosa are distressing symptoms of allergic rhinitis (AR). Recent studies have revealed that hyperinnervation of sensory neurons in the nasal turbinate is one of the underlying causes of sneezing and itching. Since Semaphorin-3A (Sema3A) has been previously shown to restric...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.11005fp
更新日期:2011-01-01 00:00:00
abstract::Since induced pluripotent stem cells (iPSCs) were generated from mice and humans by Professor Shinya Yamanaka et al. in 2006 and 2007, respectively, a variety of human-derived cells have been generated, including myocardial, liver, retinal pigment epithelial, and neuronal cells. These iPSCs are now used not only in cl...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章,评审
doi:10.1016/j.jphs.2019.06.002
更新日期:2019-08-01 00:00:00
abstract::Overexpression of constitutively active (CA)-G alpha13 significantly increased the expression of interleukin (IL)-1beta and IL-6 mRNAs and proteins in rat cardiac fibroblasts. IL-1beta mRNA induction by CA-G alpha13 was suppressed by diphenyleneiodonium (DPI), an NADPH oxidase inhibitor, but not by BAPTA-AM, an intrac...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.fp0051036
更新日期:2006-06-01 00:00:00
abstract::It has been shown that enhancement of vasoconstrictor prostanoids plays an important role in the development of cardiovascular diseases. The aim of the present study was to examine the effects of pyrrolidine dithiocarbamate (PDTC), a low-molecular-weight thiol antioxidant and a potent inhibitor of nuclear factor-kappa...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.09116fp
更新日期:2009-07-01 00:00:00
abstract::We have reported that the differentiation-inducing factors (DIFs) DIF-1 and DIF-3, morphogens secreted from Dictyostelium discoideum, inhibit proliferation of several cancer cells via suppression of the Wnt/beta-catenin signaling pathway. However, the target molecules of DIFs involved in the anti-proliferative effects...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.09348fp
更新日期:2010-01-01 00:00:00
abstract::High impulsivity will increase the risk of criminal behavior, drug abuse, and suicide. We chose two drugs by following a strategy recently we proposed for identifying potential anti-impulsivity drugs, and examined the effects on impulsive action in rats by using a 3-choice serial reaction time task. We showed that the...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1016/j.jphs.2019.09.013
更新日期:2019-11-01 00:00:00
abstract::Patients with obstructive sleep apnea (OSA) have a high prevalence of atrial fibrillation (AF). Rivaroxaban, a coagulation factor Xa inhibitor, has recently been reported to show pleiotropic effects. This study investigated the influence of rivaroxaban on cardiac remodeling caused by intermittent hypoxia (IH). Male C5...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1016/j.jphs.2018.07.002
更新日期:2018-07-01 00:00:00
abstract::To examine effects of volatile anesthetics (VAs) on steroidogenesis, cell suspensions of isolated bovine adrenocortical cells were incubated with several steroidogenic agents in the presence or absence of halothane and sevoflurane. The adrenocortical cells were dispersed by trypsin digestion of bovine adrenal cortex. ...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章
doi:10.1254/jphs.93.210
更新日期:2003-10-01 00:00:00
abstract::Mood disorders are not merely attributed to the functional defect of neurotransmission, but also are due to the structural impairment of neuroplasticity. Chronic stress decreases neurotrophin levels, precipitating or exacerbating depression; conversely, antidepressants increase expression of various neurotrophins (e.g...
journal_title:Journal of pharmacological sciences
pub_type: 杂志文章,评审
doi:10.1254/jphs.09r02cr
更新日期:2009-05-01 00:00:00