Abstract:
:This study was carried out to evaluate the antitumor activity of Metformin (Met) and its impending utility to potentiate the chemotherapeutic action of doxorubicin on 2-amino-1-methyl-6-phenylimidazo[4,5b]pyridine (PhIP)-induced rat mammary carcinogenesis. Female Sprague -Dawley (SD) rats were divided into seven groups (n = 15 each). Mammary carcinogenesis was induced by the administration of PhIP at a dose of 75 mg/kg by gavage. Met treatment was 2 mg/ml in drinking water for 26 weeks started after the last PhIP dose. Doxorubicin (Dox) treatment started after one month of the last PhIP dose with a dose of 4 mg/kg, i.v. once per week for 4 weeks. Compared to the PhIP group, the latency period of tumors in the PhIP+Dox, PhIP+Met, and PhIP+Dox+Met groups were significantly increased and tumors' incidences and multiplicities were significantly reduced. By immunohistochemistry, carcinomas from the combination treatment groups showed a significant decrease in the labeling indexes (LI%) of cellular proliferation and CD44 compared to the PhIP group while LI% for ERα was significantly decreased in all combination treatment groups compared to the PhIP-administered group. Moreover, the quantitative mRNA expression of ERα was significantly decreased in mammary tumors from PhIP + Dox+Met combined group more than the PhIP + Dox group. However, mRNA expression of EGF was found significantly lower in all combination treatment groups compared to the PhIP group. These findings suggest that Metformin potentiate the antitumor efficacy of doxorubicin and had beneficial effects on PhIP-induced mammary carcinogenesis through the prevention of cellular proliferation and mRNA expression of ERα and EGF.
journal_name
Fundam Clin Pharmacoljournal_title
Fundamental & clinical pharmacologyauthors
Salim E,El-Sisi AE,Sokar S,El-Sayad M,Moussa Edoi
10.1111/fcp.12604subject
Has Abstractpub_date
2020-09-09 00:00:00eissn
0767-3981issn
1472-8206pub_type
杂志文章abstract::Developing drugs for rare disease can be challenging due to specific rare disease characteristics. The French Medical Pharmacology is structured and positioned to play a major role in orphan drug research and development due to the required expertise concentrated into pharmacology departments, exclusively implemented ...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/fcp.12314
更新日期:2017-12-01 00:00:00
abstract::The aim of this study was to investigate which principal human cytochrome P450 (CYP450) enzymes are affected by artemisinin and to what degree the artemisinin derivatives differ with respect to their respective induction and inhibition capacity. Seventy-five healthy adults were randomized to receive therapeutic oral d...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1472-8206.2007.00471.x
更新日期:2007-06-01 00:00:00
abstract::The maturation of the N-acetyltransferase-dependent AFMU production from caffeine was studied during infancy. The group of children (N = 14) consisted of 4 premature newborn infants and ten 1-19 month-old infants who received caffeine citrate solution for the treatment and prevention of apnea. Caffeine, AFMU, 1X and 9...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1472-8206.1989.tb00461.x
更新日期:1989-01-01 00:00:00
abstract::Ischemic heart disease is a common cardiac health problem. Despite the significant advances in prevention and treatment of this disorder, its incidences and complications are very serious. So, the search for more antioxidants and anti-inflammatory agents with cardioprotective effects is an urgent task. We aimed to eva...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/fcp.12529
更新日期:2020-06-01 00:00:00
abstract::Thalidomide, a well-known immunomodulatory compound, has an anti-angiogenic activity, which may be utilized for the treatment of angiogenesis-related diseases such as hemangioendothelioma. The aim of the present study was to investigate both the antitumor role of thalidomide on hemangioendothelioma and the underlying ...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/fcp.12478
更新日期:2019-12-01 00:00:00
abstract::Two 5HT(1A) receptor agonists and chlordiazepoxide were examined in open-field, elevated plus maze, and emergence tests. At doses with no effect in the open-field, chlordiazepoxide increased open and open/total arm visits as well as open arm duration in the elevated plus maze, whereas 5HT(1A) receptor agonists showed ...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1472-8206.2009.00772.x
更新日期:2010-06-01 00:00:00
abstract::The aim of this cross-sectional study was to investigate the association between sedative load and functional outcomes in community-dwelling older Australian men. A total of 1696 males aged ≥ 70 years, enrolled in the Concord Health and Ageing in Men Project, were studied. Participants underwent assessments during 200...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1472-8206.2012.01063.x
更新日期:2014-02-01 00:00:00
abstract::The action of ouabain, a cell membrane Na+, K+-ATPase blocker, on contractions induced by manganese ions (Mn2+) in Ca2+-free, isotonic solutions with varying concentrations of K+ in the external medium were investigated in order to evaluate the underlying role of external Na+ in Mn2+-induced contractions in isolated t...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1472-8206.2005.00334.x
更新日期:2005-06-01 00:00:00
abstract::Considering the diseases of the stomach and duodenum, peptic ulcer has been the one with a significant clinical impact. The pathophysiology of peptic ulcer has centred on an imbalance between aggressive and protective factors. The discovery of Helicobacter pylori as a cause of peptic ulcer has changed our approach gre...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1111/j.1472-8206.2004.00203.x
更新日期:2004-02-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to investigate the effects of intracoronary bradykinin (BK) infusion on noradrenaline release and ventricular arrhythmias induced by coronary occlusion and reperfusion in the anesthetized dog. METHODS:14 anesthetized adult mongrel dogs of either sex underwent a 60 min occlusion of t...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1472-8206.1994.tb00834.x
更新日期:1994-01-01 00:00:00
abstract::The airway epithelium is composed of a heterogeneous population of cells. This epithelial layer is not only a physical barrier but also a target responding to a variety of inflammatory mediators. These cells can respond by releasing contracting and relaxing factors to modulate airway responsiveness. They can also meta...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1111/j.1472-8206.1993.tb00240.x
更新日期:1993-01-01 00:00:00
abstract::Clonidine (CL) and Rilmenidine (RI) are among the most frequently prescribed centrally- acting antihypertensives. Here we compared CL and RI effects on psychogenic cardiovascular reactivity to sonant, luminous, motosensory, and vibrotactile stimuli during neurogenic hypertension. The femoral artery and vein of Wistar ...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/fcp.12648
更新日期:2021-01-19 00:00:00
abstract::Clinical research in chronic heart failure has recently focused on the stimulated neuro-hormonal compensatory mechanisms that could contribute to auto-aggravation of the disease. On the basis of such a hypothesis, and apart from the inhibition of the renin angiotensin system, the antagonism of beta-receptors has evolv...
journal_title:Fundamental & clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1997-01-01 00:00:00
abstract::During the phase I trials, from the juridical point of view, the responsibilities are shared between the pharmaceutical company and the physician who manages the trial. The pharmaceutical company is responsible for the product, the choice of methodology and respect for the regulations. On the financial side, the compa...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1472-8206.1990.tb00077.x
更新日期:1990-01-01 00:00:00
abstract::Chronic hepatitis B virus (HBV) infection is a common infectious disease in the world. Two percent of the patients with chronic HBV infection will develop cirrhosis each year, and will die prematurely from cirrhosis or hepatocellular carcinoma. So far interferon alfa and lamivudine are the only effective drugs. Interf...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1046/j.1472-8206.2003.00194.x
更新日期:2003-12-01 00:00:00
abstract::Some combinations of antihypertensive agents were shown to reduce proteinuria in patients with renal failure. However, preventive effects of such combinations on renal structure and function are presently unknown when treatment is administered before the onset of renal abnormalities. We thus investigated the long-term...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1472-8206.2004.00264.x
更新日期:2004-08-01 00:00:00
abstract::To assess the incidence of hospital admissions related to adverse drug reactions (ADRs) in France and the frequency of preventable ADRs in France, a prospective study was conducted among a representative randomly selected sample of medical wards in public hospitals between December 2006 and June 2007; all patients adm...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/fcp.12088
更新日期:2015-02-01 00:00:00
abstract::In addition to their direct effects on cardiac contractility, a number of positive inotropic agents also induce, through direct peripheral vasodilation, a reduction in afterload which is of major importance in their beneficial effects in the treatment of congestive heart failure. However, the induced increase in cardi...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1472-8206.1991.tb00759.x
更新日期:1991-01-01 00:00:00
abstract::Heart transplant is considered to be an extremely severe ischemia-reperfusion sequence. Post-ischemic dysfunction triggers multiple processes especially oxidative stress, but the mechanisms remain unclear. Free radical interactions lead to peroxynitrite generation, which seems to be involved in early post-transplant h...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1472-8206.2007.00467.x
更新日期:2007-04-01 00:00:00
abstract::The main of the present study was to determine the experimental conditions for an animal model of orthostatic hypotension based on tilting in rats. Blood pressure, heart rate and plasma catecholamine levels were measured before and after tilting in conscious and anaesthetized rats either breathing spontaneously or mec...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1472-8206.1992.tb00092.x
更新日期:1992-01-01 00:00:00
abstract::Restenosis after coronary angioplasty, the main limitation of interventional cardiology, remains an unsolved issue. The failure to-date of all pharmacological attempts at prevention has prompted the development of alternative strategies. A mechanistic approach to the problem of restenosis is based on the assumption th...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1111/j.1472-8206.1995.tb00259.x
更新日期:1995-01-01 00:00:00
abstract::Rhodamine 123 is a fluorescent cationic dye commonly used as a mitochondrial probe and known or suspected to be transported by certain drug membrane transporters. The present study was designed to characterize the putative interactions of rhodamine 123 with human organic cation transporter (OCT) 1 and OCT2. Intracellu...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1472-8206.2012.01071.x
更新日期:2014-02-01 00:00:00
abstract::Anxiety following heart failure (HF) and/or myocardial infarction (MI) can impede recovery and constitute a major risk factor for further cardiac events. The present study was aimed to evaluate anxiety following doxorubicin (DOX)-induced cardiomyopathy, a rodent model for HF, in mice. Furthermore, the study investigat...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1472-8206.2011.00925.x
更新日期:2012-06-01 00:00:00
abstract::Since solute carrier (SLC) and ATP-binding cassette (ABC) transporters play pivotal roles in the transport of both nutrients and drugs into breast milk, drug-nutrient transport interactions at the lactating mammary gland are possible. Our purpose was to characterize lactation stage-dependent changes in transporter exp...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1472-8206.2009.00760.x
更新日期:2010-04-01 00:00:00
abstract::Advances in paediatric clinical pharmacology are interdependent with a better understanding of the influence of growth on drug disposition and action. In this field, there is an increasing need for non-invasive drug monitoring approaches. This paper aims to discuss the role of positron emission tomography in such prac...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1111/j.1472-8206.2008.00650.x
更新日期:2008-12-01 00:00:00
abstract::Over the past 10 years, more than 40 potentially oncogenic genes, termed protooncogenes, have been identified in the human genome. Little is known of the physiological role of the proteins encoded by these genes, but they seem to be involved in the reception and transmission of hormonal and other environmental informa...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1111/j.1472-8206.1990.tb00694.x
更新日期:1990-01-01 00:00:00
abstract::A meta-analysis was performed on the results of clinical trials of buflomedil in intermittent claudication. The analysis used results from 744 patients enrolled in ten studies, conducted at 42 centers in seven countries. All studies were randomized, double-blind, placebo-controlled trials which measured improvement in...
journal_title:Fundamental & clinical pharmacology
pub_type: 临床试验,杂志文章,meta分析
doi:10.1111/j.1472-8206.1995.tb00515.x
更新日期:1995-01-01 00:00:00
abstract::Quercetin is a flavonol polyphenol widely found in many vegetables, grains, and fruits. Quercetin has been shown to inhibit proliferation and invasion of various glioma cells and is regarded as a potential anticancer agent against glioma. However, whether and how this drug could affect brain blood vessels and endothel...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/fcp.12514
更新日期:2020-04-01 00:00:00
abstract::This systematic review analyses the efficacy, tolerability and safety of combinations of different medicines used to treat dyslipidemias in clinical practice. A PubMed search up to January 2009, was conducted to identify relevant studies. Criteria used to identify studies included (1) English language, (2) published s...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1111/j.1472-8206.2009.00764.x
更新日期:2010-02-01 00:00:00
abstract::We studied the effects of KATP channel blockers on [3H]GABA release in the absence of glucose in rat hippocampal slices. The omission of glucose induced a marked increase in the efflux of [3H]GABA, which was antagonized by TTX (1 microM), but not by MK 801 (1 microM) or DNQX (100 microM). Glibenclamide (10-100 microM)...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1472-8206.1992.tb00123.x
更新日期:1992-01-01 00:00:00