Abstract：
:This study investigates the effect of chronic consumption of a high-fat diet rich in corn oil (CO-HFD) on atrial cells ultrastructure, antioxidant levels and markers of intrinsic cell death of both control and type 1 diabetes mellitus (T1DM)-induced rats. Adult male rats (10 rats/group) were divided into four groups: control fed standard diet (STD) (3.82 kcal/g, 9.4% fat), CO-HFD (5.4 kcal/g, 40% fat), T1DM fed STD, and T1DM + CO-HFD. CO-HFD and T1DM alone or in combination impaired systolic and diastolic functions of rats and significantly reduced levels of GSH and the activity of SOD, enhanced lipid peroxidation, increased protein levels of P53, Bax, cleaved caspase-3, and ANF and decreased levels of Bcl-2 in their atria. Concomitantly, atrial cells exhibited fragmentation of the myofibrils, disorganized mitochondria, decreased number of atrionatriuretic factor (ANF) granules, and loss of gap junctions accompanied by changes in capillary walls. Among all treatments, the severity of all these findings was more severe in T1DM and most profound in the atria of T1DM + CO-HFD. In conclusion, chronic consumption of CO-HFD by T1DM-induced rats elicits significant biochemical and ultrastructural damage to rat atrial cells accompanied by elevated oxidative stress and mitochondria-mediated cell death.
journal_name
Clin Exp Pharmacol Physioljournal_title
Clinical and experimental pharmacology & physiologyauthors
Eid RA,Eleawa SM,Alkhateeb MA,Aldera H,Zaki MSA,Al-Shraim M,Saeed MA,El-Kott AF,Alaa Eldeen M,Alassiri M,Alshehri MM,Salem Al-Shudiefat AA,Khalil MAdoi
10.1111/1440-1681.13158subject
Has Abstractpub_date
2019-12-01 00:00:00pages
1111-1123issue
12eissn
0305-1870issn
1440-1681journal_volume
46pub_type
杂志文章abstract：:1. Several selective antagonists are available to differentiate between muscarinic receptors. 2. Further subdivision of M1 and M2 muscarinic receptors appears possible and is supported by studies with cloned receptors. 3. Reasons for differences between affinity constants determined in functional and binding studies a...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章,评审
doi：10.1111/j.1440-1681.1989.tb01599.x
更新日期：1989-06-01 00:00:00
abstract：:1. Although it is well established that hypertension is the main risk factor for stroke, the complexity of cerebrovascular problems related to hypertension is not generally appreciated. 2. Hypertension can cause stroke through many mechanisms. A high intraluminal pressure will lead to extensive alteration in endotheli...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章,评审
doi：10.1046/j.1440-1681.1999.03081.x
更新日期：1999-07-01 00:00:00
abstract：:Opioids are effective analgaesic agents, but serious adverse effects such as tolerance and withdrawal contribute to opioid dependence and limit their use. Opioid withdrawal is a common occurrence in human opiate addicts that is not life-threatening. Studies have shown that the mesocorticolimbic system, especially the ...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/1440-1681.13224
更新日期：2020-04-01 00:00:00
abstract：:1. Changes in renal sympathetic nerve activity (RSNA) were investigated during the development of congestive heart failure (CHF) in rabbits with doxorubicin-induced cardiomyopathy. 2. Controls (saline treated, n = 5) and doxorubicin-treated rabbits (1 mg/kg administered intravenously twice weekly, n = 5) were studied ...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/j.1440-1681.1990.tb01325.x
更新日期：1990-04-01 00:00:00
abstract：:1. The ulcerogenesis of gastric haemorrhagic damage during sepsis is unclear. The present study first proposes that gastric haemorrhagic ulcer is modulated by mucosal glutathione, histamine and oxyradicals in lipopolysaccharide (LPS)-induced sepsis in rats. The protective effects of several drugs on the ulcerogenic pa...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1046/j.1440-1681.2000.03241.x
更新日期：2000-04-01 00:00:00
abstract：:The aim of this study was to determine whether the kaliuresis associated with glucocorticoids is due to a direct tubular action or is secondary to effects of glucocorticoids on distal tubule flow. A whole kidney technique was used to avoid the problem, inherent in microperfusion and micropuncture studies, of deciding ...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/j.1440-1681.1987.tb00956.x
更新日期：1987-01-01 00:00:00
abstract：:1. Rats fed high dietary fructose are documented to form an acquired model of insulin resistance. The present study measured the effects of administration of L-carnitine (CA) on lens protein glycation, oxidative stress and redox homeostasis in rats fed a high-fructose diet. 2. Animals were divided into four groups: (i...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/j.1440-1681.2007.04815.x
更新日期：2008-02-01 00:00:00
abstract：:1. Uridine monophosphate was tested in the conscious rat for natriuretic properties and an immunoperoxidase technique was used to localize uridine-containing compounds in the rat kidney. 2. Uridine monophosphate, infused in a moderate pressor dose, caused a significant natriuresis compared to the effect of control inf...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/j.1440-1681.1987.tb00385.x
更新日期：1987-03-01 00:00:00
abstract：:1. Endothelial dysfunction is seen in patients with essential hypertension or congestive heart failure (CHF). The present study aimed to evaluate the direct effect on endothelium- dependent vasodilation (EDV) of different pharmacological drugs commonly used in the treatment of these conditions. 2. Forearm blood flow (...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 临床试验,杂志文章
doi：10.1046/j.1440-1681.2001.03465.x
更新日期：2001-05-01 00:00:00
abstract：:Epidemiological studies indicate that poor growth before birth is associated with left ventricular hypertrophy and an increased risk of death from heart disease later in life. In fetal life, the insulin-like growth factor (IGF) system has been implicated in physiological growth of the heart, whereas in postnatal life ...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章,评审
doi：10.1111/j.1440-1681.2012.05743.x
更新日期：2012-11-01 00:00:00
abstract：:1. The concentration of methylguanidine and guanidinosuccinic acid has been measured in normal human plasma and discrepancies between various published methods for measuring methylguanidine have been resolved. Previous methods have been modified to allow these guanidines, together with guanidinoacetic acid and creatin...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/j.1440-1681.1978.tb00654.x
更新日期：1978-01-01 00:00:00
abstract：:The effects of the calcium antagonists verapamil and nifedipine on mean arterial blood pressure, heart rate and pressor responses to a range of alpha-adrenoceptor agonists were examined in male normotensive New Zealand white rabbits and in rabbits with perinephritis hypertension. Verapamil and nifedipine caused a grea...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/j.1440-1681.1987.tb00960.x
更新日期：1987-02-01 00:00:00
abstract：:In the context of the ongoing debate on the mechanism of blood pressure (BP) regulation and pathophysiology of arterial hypertension ("renocentric" vs "neural" concepts), attention is focused on the putative regulatory role of changes in renal medullary blood flow (MBF). Experimental evidence is analysed with regard t...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章,评审
doi：10.1111/1440-1681.13303
更新日期：2020-08-01 00:00:00
abstract：:1. The present review reports some of the earliest physiological changes that occur in the diabetic retina prior to any clinical or anatomical changes in an animal model of diabetes. 2. Using chemically induced diabetes (by streptozotocin) in rats, retinal blood flow and vitreal and retinal oxygen tension were determi...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章,评审
doi：10.1111/j.1440-1681.1997.tb02133.x
更新日期：1997-09-01 00:00:00
abstract：:The effector mechanisms responsible for the bradycardia evoked by bilateral lesions of the brainstem coinciding with the A1 catecholamine cells were analyzed in four groups of rabbits. Sham or lesion operations were carried out in animals with intact cardiac effectors, with cardiac sympathetic block induced by propran...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/j.1440-1681.1984.tb00251.x
更新日期：1984-03-01 00:00:00
abstract：:Short-term salt loading and salt restriction in a group of normal pregnant women produced no changes in lying, sitting or standing blood pressures or heart rates. Home blood pressures showed no trend to change over the periods of altered salt intake. Although plasma volume and plasma renin activity changed with altere...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/j.1440-1681.1985.tb02654.x
更新日期：1985-05-01 00:00:00
abstract：:1. The physiological relevance of cardiac and vascular alpha-adrenoceptors may increase in disease states in which beta-adrenoceptors are altered. To test this, positive inotropic and vasoconstrictor responses to phenylephrine were measured in isolated tissues from rats with experimentally-induced hyperthyroidism, hyp...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/j.1440-1681.1994.tb02575.x
更新日期：1994-09-01 00:00:00
abstract：:1. Na+/H+ exchange, an ethylisopropylamiloride (EIPA)-sensitive Na+ and HCO3- dependent system and a diisothio-cyanatostilbenedisulphonic acid (DIDS)-sensitive Na+ and HCO3- transporter, contribute to sodium influx and intracellular pH (pHi) regulation in vascular smooth muscle. 2. In cultured cells from the human int...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章,评审
doi：10.1111/j.1440-1681.1991.tb01419.x
更新日期：1991-02-01 00:00:00
abstract：:1. Stimulation of the mesolimbic dopamine system, by micro-injection of the substance P analogue [pGlu5,MePhe8,Sar9] substance P (DiMe-C7) into the ventral tegmental area induced a prolonged increase in blood pressure and circulating levels of vasopressin. 2. In the present study, this treatment produced a significant...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/j.1440-1681.1998.tb02264.x
更新日期：1998-07-01 00:00:00
abstract：:1. Intravenous endothelin-1 releases endothelium-derived relaxing factor (EDRF) and prostacyclin from the lungs, and substantial pulmonary clearance is claimed. Since these vaso-active substances could alter the haemodynamic effects of endothelin-1, the effects of boluses of endothelin-1 injected intravenously and int...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/j.1440-1681.1994.tb02521.x
更新日期：1994-04-01 00:00:00
abstract：:Hypertension leads to electrophysiological changes in the heart. Chronic exercise induced by a treadmill-running programme (TRP) is considered a potential non-pharmacological treatment for hypertension and may have implications in heart remodelling. However, it is not known whether the TRP is able to improve the elect...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/j.1440-1681.2011.05669.x
更新日期：2012-02-01 00:00:00
abstract：:1. We studied the association between the level of the left ventricular ejection fraction and the severity of coronary atherosclerosis. 2. The study population consisted of 850 consecutive patients who underwent coronary angiography for suspected or known coronary atherosclerosis. Anthropometric measurements including...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/j.1440-1681.2010.05474.x
更新日期：2011-02-01 00:00:00
abstract：:1. Oxidative stress (OS) is a biological entity indicated as being responsible for several pathologies, including diabetes. Diabetes can also be associated with human cirrhosis. Portal hypertension (PH), a major syndrome in cirrhosis, produces hyperdynamic splanchnic circulation and hyperaemia. The present study was d...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/j.1440-1681.2004.03963.x
更新日期：2004-03-01 00:00:00
abstract：:1. Quantitative autoradiography and homogenate radioligand binding of [125I]-Bolton Hunter substance P ([125I]-BHSP) were used to compare brain NK1 receptors in young (2 months) and aged (18-20 months) rats. 2. The autoradiographic distribution and density of [125I]-BHSP binding sites was similar in all cortical regio...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1046/j.1440-1681.2002.03781.x
更新日期：2002-12-01 00:00:00
abstract：:1. The effects of bromocriptine and indomethacin on prolactin-induced pseudopregnancy were studied in pituitary grafted rats. 2.Administration of bromocriptine (a prolactin suppressant drug) at a total dose of 3 mg/kg body weight, given in 3 divided doses on day 5 of pseudopregnancy, effectively terminated it within 3...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/j.1440-1681.1980.tb00079.x
更新日期：1980-05-01 00:00:00
abstract：:1. Anoxic perfusion of the isolated rat heart releases noradrenaline in the absence of sympathetic nerve fibre stimulation. 2. Anoxic noradrenaline release is enhanced by reducing the extracellular Na+ concentration, consistent with the proposal that such release occurs by carrier-mediated efflux. 3. Release is also e...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/j.1440-1681.1991.tb01375.x
更新日期：1991-01-01 00:00:00
abstract：:1. Cholestatic liver disease is associated with nitric oxide (NO) overproduction and bradycardia. Nitric oxide has a dual effect on sinoatrial node and its effects depend on its concentration. Nitric oxide can increase heart rate by activating hyperpolarization-activated pacemaker current (If) but, at high concentrati...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1046/j.1440-1681.2002.03748.x
更新日期：2002-10-01 00:00:00
abstract：:The therapeutic potential of the antimicrobial peptide cathelicidin (Camp) administration in sepsis has been widely investigated. However, little is known about the pathophysiological roles of cathelicidin in septic cardiomyopathy. In a lipopolysaccharide (LPS)-induced endotoxaemic model, we found that the mRNA and pr...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/1440-1681.13234
更新日期：2020-04-01 00:00:00
abstract：:Repaglinide is a short-acting insulin secretagogue, which often results in considerable interindividual variability in therapeutic efficacy when widely used in a clinical setting. Among various reasons under discussion is genetic polymorphism, especially the genes related to insulin secretion and resistance. Recent st...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章,随机对照试验
doi：10.1111/1440-1681.12314
更新日期：2015-01-01 00:00:00
abstract：:Cellular senescence is a state of irreversible cell growth arrest. Increasing evidence suggests that cellular senescence contribute to tumour suppression in vivo. However, only a few anti-cancer drugs have been discovered to induce cellular senescence. Searching for new compounds which can inhibit cancer cell growth b...
journal_title：Clinical and experimental pharmacology & physiology
pub_type： 杂志文章
doi：10.1111/1440-1681.12891
更新日期：2018-05-01 00:00:00
