Abstract：
:Previous studies show that naringenin promotes insulin sensitivity in fructose-fed rats. This study investigates whether naringenin prevents oxidative events and apoptotic changes triggered in the rat liver by a high fructose diet. Male Wistar rats of body weight 150-180 g were fed either diet containing starch (60% carbohydrate) or fructose (60% fructose diet). From the 16th day of feeding, rats in each dietary group were divided into two, and treated or not with naringenin (50mg/kg b.w/day). After 60 days, oxidative and nitrosative damage and endothelial nitric oxide synthase (eNOS) expression and hepatocyte apoptosis were determined. To evaluate whether nitric oxide (NO) plays a role in naringenin action, insulin sensitivity indices, fasting plasma glucose and insulin were assessed in response to co-administration of L-nitro-arginine methyl ester (L-NAME), a NOS inhibitor. Fructose feeding caused oxidative damage to proteins and lipids and resulted in reduced antioxidant status, eNOS expression and nitrite level. Increased formation of 4-hydroxy nonenal (4-HNE), 2, 4-dinitrophenol (2, 4-DNP) and 3-nitrotyrosine (3-NT)-modified proteins and the presence of apoptotic nuclei were observed in the liver. Treatment with naringenin attenuated all these parameters to levels not significantly different from control. Treatment with naringenin improved insulin sensitivity. However, L-NAME plus naringenin administration abolished the insulin-sensitizing effects of naringenin in fructose-fed rats. Reduced oxidative events with simultaneous increase in NO bioavailability may be involved in the insulin-sensitizing and cytoprotective effects of naringenin in fructose-fed rats.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Kannappan S,Palanisamy N,Anuradha CVdoi
10.1016/j.ejphar.2010.07.015subject
Has Abstractpub_date
2010-10-25 00:00:00pages
177-84issue
1-3eissn
0014-2999issn
1879-0712pii
S0014-2999(10)00712-0journal_volume
645pub_type
杂志文章abstract：:Pulmonary artery rings were prepared from rats (group I to VI, n = 5-7 per group) in order to investigate if a beta-adrenoceptor antagonist interferes with the effect of alpha-adrenoceptor blockade. In I, four cumulative noradrenaline (NA) dose-response curves (10(-9) to 10(-3) M) were constructed. In II, NA curves we...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(90)90247-4
更新日期：1990-05-31 00:00:00
abstract：:Nonalcoholic fatty liver disease (NAFLD) is the most common liver disease in the world. Despite the impact of this pathology in the population, nowadays there is no specific treatment for this disease, focusing its treatment on risks factors. However, it is imperative the existence of a specific treatment, due to this...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2019.172699
更新日期：2019-11-15 00:00:00
abstract：:To investigate the detrusor fibrosis and urinary dysfunction in chronic prostatitis (CP), and to investigate whether resveratrol can improve the urinary dysfunction and the underlying molecular mechanism. After rat model of CP is established by subcutaneously injecting DPT vaccine, rats are treated with resveratrol. E...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2017.10.017
更新日期：2017-11-15 00:00:00
abstract：:Using microdialysis in rat prefrontal cortex, we found that 1 mg/kg of the stimulant methylphenidate and the non-stimulant atomoxetine, two widely used treatments for Attention Deficit/Hyperactivity Disorder (ADHD), produce robust increases in the extracellular levels of histamine, which plays a key role in attention,...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2006.11.048
更新日期：2007-03-08 00:00:00
abstract：:N-methyl-d-aspartate (NMDA) receptors are important in mediating excitatory neurotransmission in the nervous system. They are preferentially inhibited by some general anesthetics and have, therefore, been implied in the mediation of their effects. This review summarizes the main research findings available related to ...
journal_title：European journal of pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.ejphar.2013.11.039
更新日期：2014-01-15 00:00:00
abstract：:The neuroprotective effects of felbamate were tested in a model of incomplete cerebral ischemia and hypoxia in 7-day-old rat pups. Felbamate pretreatment (300 mg/kg) reduced the surface of infarcted cortex following bilateral carotid ligation, by 42-49% compared to saline and dimethylsulfoxide (DMSO) controls, respect...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(92)90343-3
更新日期：1992-03-03 00:00:00
abstract：:Many studies have shown that anti-inflammatory agents are effective in the treatment of endometriosis. β-Caryophyllene exerted a potent anti-inflammatory effect in vivo. However, its effect on endometriosis has not been investigated. This study aims at investigating the effect of β-caryophyllene on endometriosis and o...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2013.01.011
更新日期：2013-02-28 00:00:00
abstract：:In this study we have investigated the functional activity of GR127935 (2-methyl-1,2,4 oxadiazol-3-yl)-biphenyl-[4-carboxylic acid 4-methoxy-3-(4-methyl-piperazine-1-yl]-amide) at human 5-HT1D alpha and 5-HT1D beta receptors which have been expressed in a Chinese Hamster Ovary (CHO) cell line. Using [35S] GTP gamma S ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(96)00579-1
更新日期：1996-10-31 00:00:00
abstract：:COVID-19 pandemic presents an unprecedented challenge to identify effective drugs for treatment. Despite multiple clinical trials using different agents, there is still a lack of specific treatment for COVID-19. Having the potential role in suppressing inflammation, immune modulation, antiviral and improving respirato...
journal_title：European journal of pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.ejphar.2020.173561
更新日期：2020-11-15 00:00:00
abstract：:This study was designed to assess whether nitroglycerin would improve the relationship between O2 supply and O2 consumption in the reperfused ischemic dog myocardium. In 16 dogs the left anterior descending coronary artery was occluded for 2 h, followed by a 4 h period of reperfusion. In 8 of the 16 dogs, an infusion ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(89)90069-1
更新日期：1989-07-18 00:00:00
abstract：:18-Methoxycoronaridine, a novel iboga alkaloid congener that decreases drug self-administration in several animal models, may be a potential treatment for multiple forms of drug abuse. In previous work, 18-methoxycoronaridine was found to be a somewhat selective antagonist at alpha3beta4 nicotinic receptors; and low d...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(02)01944-1
更新日期：2002-07-19 00:00:00
abstract：:G protein-coupled receptors (GPCRs) are a family of membrane receptors that regulate physiology and pathology of various organs. Consequently, about 40% of drugs in the market targets GPCRs. Heterotrimeric G proteins are composed of α, β, and γ subunits, and act as the key downstream signaling molecules of GPCRs. The ...
journal_title：European journal of pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.ejphar.2015.05.016
更新日期：2015-09-15 00:00:00
abstract：:In isolated, perfused rabbit ear artery bradykinin, like [Met5]enkephalin and angiotensin II, inhibited neurogenic constrictions in concentrations lower than 10(-8) M without affecting the responses to exogenous norepinephrine. The IC50 value of bradykinin was 1.95 x 10(-10) M. The inhibitory action of bradykinin and ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(91)90567-a
更新日期：1991-05-30 00:00:00
abstract：:The role of tuberoinfundibular and periventricular-hypophysial dopaminergic neurons in mediating rimcazole-induced decreases in plasma concentrations of prolactin and alpha-melanocyte stimulating hormone was assessed. Dopaminergic neuronal activity was estimated by measuring concentrations of 3,4-dihydroxyphenylacetic...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(95)00841-1
更新日期：1996-03-28 00:00:00
abstract：:Drugs of abuse and stress are associated with changes in circulating cell populations and reductions in cell-mediated immune responses. The main goal of this study was to determine the influence of repeated and acute d-amphetamine treatments on the foot-shock stress-induced effects on the peripheral lymphocyte subpopu...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2008.02.007
更新日期：2008-04-28 00:00:00
abstract：:The prostaglandin synthetase inhibitors indomethacin and acetyl salicylic acid did not affect the post-stimulus rebound excitation of guinea-pig duodenal and jejunal circular muscle with transmural electrical stimulation at 1 min intervals. In the absence of any drug, sequential time-dependent changes in amplitude of ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(76)90354-x
更新日期：1976-11-01 00:00:00
abstract：:Circadian rhythms in mammals are generated by master pacemaker cells located within the suprachiasmatic nucleus of the hypothalamus. In hamsters, the suprachiasmatic nucleus contains a small collection of cells immunoreactive for substance P, the endogenous ligand of tachykinin neurokinin 1 (NK1) receptors. In additio...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2005.10.012
更新日期：2005-12-19 00:00:00
abstract：:Modafinil [2-((diphenylmethyl) sulfinyl) acetamide] is a central nervous system stimulant. It has received considerable attention as a potential psychotropic agent in several psychiatric disorders. The current study was carried out to investigate the effect of modafinil after acute administration on animal models of p...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2014.04.035
更新日期：2014-08-05 00:00:00
abstract：:The present study was designed to characterize the vasopressin receptor subtype involved in the vasopressin-induced activation of the central sympatho-adrenomedullary outflow using urethane-anesthetized rats. Intracerebroventricularly (i.c.v.) administered vasopressin (0.1, 0.2 and 0.5 nmol/animal) dose-dependently el...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(02)02652-3
更新日期：2002-12-13 00:00:00
abstract：:Inhibition of local cortisol regeneration from circulating cortisone by blocking 11β-hydroxysteroid dehydrogenase 1 (11β-HSD1) has been shown to ameliorate the risk factors associated with the metabolic syndrome. Chronic modulation of glucocorticoid homeostasis may result in hypothalamic-pituitary-adrenal (HPA) axis s...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2016.07.004
更新日期：2016-10-15 00:00:00
abstract：:The antihypertensive drug doxazosin has been associated with an increased risk for congestive heart failure and cardiomyocyte apoptosis. Human ether-a-go-go-related gene (hERG) K(+) channels, previously shown to be blocked by doxazosin at therapeutically relevant concentrations, represent plasma membrane receptors for...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2007.10.051
更新日期：2008-01-28 00:00:00
abstract：:Oxidative stress plays an important role in the pathogenesis of chronic obstructive pulmonary disease (COPD) and in the induction of corticosteroid (CS) insensitivity. Chronic ozone exposure leads to a model of COPD with lung inflammation and emphysema. Mitogen-activated protein kinase phosphatase-1 (MKP-1) may underl...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2014.10.003
更新日期：2014-12-05 00:00:00
abstract：:In order to identify functional sulphonylurea receptor (SUR.x) subunits of native ATP-sensitive K+ channels (KATP channels) in mouse portal vein, the effects of ZD0947, a SUR.x modulator, were investigated on spontaneous portal vein contractions, macroscopic membrane currents and unitary currents recorded (using patch...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2017.02.023
更新日期：2017-04-05 00:00:00
abstract：:The inflammation and proliferation of vascular smooth muscle cells (VSMCs) are the basic pathological feature of proliferative vascular diseases. Tanshinone ⅡA (Tan ⅡA), which is the most abundant fat-soluble element extracted from Salvia miltiorrhiza, has potent protective effects on the cardiovascular system. Howeve...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2020.173140
更新日期：2020-08-05 00:00:00
abstract：:Alzheimer's disease, an age-related neurodegenerative disorder, is characterized clinically by a progressive loss of memory and cognitive functions. Neuropathologically, Alzheimer's disease is defined by the accumulation of extracellular amyloid protein deposited senile plaques and intracellular neurofibrillary tangle...
journal_title：European journal of pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.ejphar.2006.06.026
更新日期：2006-09-01 00:00:00
abstract：:Multiple myeloma is an incurable hematological malignancy. Different studies demonstrated the occurrence of genetic and epigenetic alterations in multiple myeloma. Histone lysine methylation has emerged as a central epigenetic change in the organization of eukaryotic chromatin with far-reaching implications for the re...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2010.05.034
更新日期：2010-11-10 00:00:00
abstract：:The concentration dependences of the Ca(2+)-sensitizing and the phosphodiesterase-inhibitory effects of levosimendan (the (-) enantiomer of [[4-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)phenyl]hydrazono]propanedinitrile) and its active metabolite, OR-1896 (the (-) enantiomer of N-[4-(1,4,5,6-tetrahydro-4-methyl...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2003.12.005
更新日期：2004-02-13 00:00:00
abstract：:The effects of neurotensin on focal adhesion kinase were investigated using lung cancer cells. Neurotensin bound with high affinity to large cell carcinoma cell line NCI-H1299 as did neurotensin-(8-13), but not neurotensin-(1-7) or levocabastine. Addition of 100 nM neurotensin to NCI-H1299 cells caused transient tyros...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(02)01539-x
更新日期：2002-05-10 00:00:00
abstract：:The mucociliary activity of the rabbit maxillary sinus is increased after exposure to airway irritants such as cigarette smoke and capsaicin. This effect is partly due to a cholinergic reflex but involves an atropine-resistant response probably mediated by the release of tachykinins such as substance P or neurokinin A...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(93)90113-v
更新日期：1993-02-16 00:00:00
abstract：:Recombinant vaccinia viruses harboring the human dopamine D4 receptor cDNA containing two 48 base pair-repeats (D4.2) or the rat dopamine D2 short (D2s) receptor cDNA were used to infect rat-1 fibroblasts. Heterologous expression of both dopamine receptors was demonstrated in binding assays. The affinity constants of ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0922-4106(95)90011-x
更新日期：1995-06-23 00:00:00
