Myricetin May Improve Cardiac Dysfunction Possibly Through Regulating Blood Pressure and Cellular Stress Molecules in High-Fructose-Fed Rats.

Background: The aim of this study was to examine the effect of myricetin on cardiac dysfunction caused by high fructose intake.

Methods: Fructose was given to the rats as a 20% solution in drinking water for 15 weeks. Myricetin was administered by oral gavage for the last 6 weeks.

Hypertension-induced cardiac impairment is reversed by the inhibition of endoplasmic reticulum stress.

Objectives: Endoplasmic reticulum stress (ERS) has been shown to play a crucial role in the pathogenesis of hypertension. However, the role and mechanisms of ERS on hypertension-induced cardiac functional and morphological changes remain unclear. In this study, the effect of ERS inhibition with tauroursodeoxycholic acid (TUDCA) on hypertension-induced cardiac remodelling was examined.

Activation of Liver X Receptors by GW3965 Attenuated Deoxycorticosterone Acetate-Salt Hypertension-Induced Cardiac Functional and Structural Changes.

In this study, the effect of liver X receptor (LXR) activation on hypertension-induced cardiac structural and functional alterations was investigated. Hypertension was induced by deoxycorticosterone acetate (DOCA)-salt administration in uninephrectomized rats for 6 weeks. LXR agonist GW3965 (3-{3-[(2-chloro-3-trifluoromethyl-benzyl)-(2,2-diphenyl-ethyl)-amino]-propoxy}-phenyl)-acetic acid was given for the past week.

Age- and sex-dependent alteration of functions and epigenetic modifications of vessel and endothelium related biomarkers.

Aging is a main risk factor for development of cardiovascular diseases associated with the impairment of endothelial function in both sexes. In the present study, age-related changes in vascular responsiveness, epigenetic modifications of vessel wall, and blood biomarkers related to endothelial functions were examined in an age- and sex-dependent manner. Acetylcholine (ACh)-induced relaxations of the aorta were decreased in 3-, 6-, and 12-month-old rats compared to those in 1-month-old female rats.

Differential expressions and functions of phosphodiesterase enzymes in different regions of the rat heart.

Phosphodiesterase enzymes (PDEs) are responsible for the adjustment of cyclic nucleotide levels. Alterations in PDE expressions in different tissues cause conflicts between functional and clinical effects of PDE inhibitors. Therefore, the aim of this study was to investigate the gene and protein expressions and the functional role of PDEs in atrium and ventricle of rat heart.

The effects of LXR agonist GW3965 on vascular reactivity and inflammation in hypertensive rat aorta.

Aims: Liver X receptors (LXRs) play an important role in the regulation of cholesterol, fatty acid and glucose metabolisms together with inflammatory processes. In the present study, the effects of LXR agonist GW3965 on vascular reactivity and expression of functional proteins in DOCA-Salt induced hypertension were examined.

Main Methods: Hypertension was induced through unilateral nephrectomy and deoxycorticosterone-acetate (DOCA) injection (20 mg/kg, twice a week) for 6 weeks in male Wistar albino rats (8 weeks old).

Role of microcirculatory function and plasma biomarkers in determining the development of cardiovascular adverse events in patients with peripheral arterial disease: A 5-year follow-up.

Objective: The aim of this long-term follow-up study was to investigate the association of local and systemic cardiovascular complications with endothelium-dependent and-independent microvascular relaxations and blood biomarkers and biochemicals in patients with peripheral arterial disease (PAD) caused by atherosclerosis.

Methods: This prospective study included 67 patients with PAD who had not undergone any endovascular intervention, peripheral arterial surgery, or major amputation. Changes in the microvascular blood flow were measured using laser Doppler imaging after iontophoresis of acetylcholine (ACh) and sodium nitroprusside (SNP).

The effects of resveratrol and exercise on age and gender-dependent alterations of vascular functions and biomarkers.

The purpose of this study was to determine the effects of resveratrol and regular aerobic exercise on vascular functions and biomarkers related to vessel responsiveness in an age and gender-dependent manner. The study used young (3 months) and old (12 months) male and female Wistar albino rats. Resveratrol was given in the drinking water (0.

The effects of different remote ischemic conditioning on ischemia-induced failure of microvascular circulation in humans.

Background: Intermittent ischemia in remote tissues can be applied before ischemic injury, during ischemic injury or at the beginning of reperfusion of an index organ ischemia. The aim of this study was to investigate the effect of Remote Ischemic Conditioning (RIC) of the leg on changes in ischemia-induced the microvascular functions of the arm.

Material And Methods: Ischemic microvascular injury was induced by arm ischemia (20 min) and reperfusion in healthy, nonsmoker, male volunteers (ischemia group-ISC, n: 9).

Venous stent placement ameliorates cutaneous microvascular function in iliocaval venous obstruction.

Background: The role of cutaneous microvascular dysfunction is well known in the development of chronic venous disease. However, the effects of venous obstruction on microcirculation have not been well investigated. The aim of this study was to assess cutaneous microvascular function in patients with iliocaval venous obstruction (ICVO) before and after venous stent placement.

Time-Dependent Production of Endothelium-Related Biomarkers is Affected Differently in Hemorrhagic and Septic Shocks.

Shock is associated with inflammation-induced endothelial dysfunction. The aim of this study was to determine time-dependent alteration of blood biomarkers related to endothelial function in hemorrhagic and septic shocks. Hemorrhagic shock was induced by bleeding the animals.

Plasma nitric oxide level is correlated with microvascular functions in the peripheral arterial disease.

At present there is no widely accepted biomarker for monitoring of vascular functions. The purpose of this prospective study was to investigate the association of some blood biomarkers with vascular reactivity in patients with peripheral arterial diseases (PAD). A prospective evaluation was made of 3 groups comprising a control group of healthy individuals, and patients with PAD caused by either atherosclerosis or Buerger's disease.

Resveratrol affects histone 3 lysine 27 methylation of vessels and blood biomarkers in DOCA salt-induced hypertension.

Hypertension is a risk factor for the cardiovascular diseases. Although, several drugs are used to treat hypertension, the success of the antihypertensive therapy is limited. Resveratrol decreases blood pressure in animal models of hypertension.

The anti-inflammatory effect of diclofenac is considerably augmented by topical capsaicinoids-containing patch in carrageenan-induced paw oedema of rat.

Nonsteroidal anti-inflammatory drugs (NSAIDs) are the most used drugs in musculoskeletal disorders, but their systemic adverse effects limit their therapeutic benefit in local inflammation. On the other hand, topical preparations of capsaicinoids are widely used for musculoskeletal disorders as a complementary therapy. In this study, the effects of both topical capsaicinoids-containing patch and local subcutaneous capsaicin application on the anti-inflammatory action of NSAID were examined.

Assessment of the endothelial functions in monocrotaline-induced pulmonary hypertension.

Pulmonary hypertension (PH) is a life-threatening disease that causes endothelial dysfunction in the pulmonary vascular bed. Systemic endothelial dysfunction has also been reported in PH. This study compared the systemic and pulmonary vascular responses and some blood biomarkers of endothelial function in monocrotaline (MCT)-induced PH of rats.

Various phosphodiesterase activities in different regions of the heart alter the cardiac effects of nitric oxide.

The modulation of cardiac functions by nitric oxide (NO) was established. This study examined the influences of phosphodiesterase (PDE) inhibitors on the action of NO in the different regions of the rat heart. NO donor diethylamine nonoate (DEA/NO) (0.

Nitric oxide effects depend on different mechanisms in different regions of the rat heart.

The important role of nitric oxide (NO) in regulating cardiac functions has been investigated in prior research. However, NO-induced signaling mechanisms in the different regions of the heart have not been explored until now. In this study, the mechanism of NO effects on the spontaneously beating right atrium and left papillary muscle isolated from the rat heart was examined.

Resveratrol-induced depression of the mechanical and electrical activities of the rat heart is reversed by glyburide: evidence for possible K(ATP) channels activation.

Resveratrol, a natural phytoalexin found in wine, has been suggested to have benefits in preventing cardiovascular diseases. However, the direct effects of resveratrol on the activity of cardiac tissues and its mechanism of action have not been determined. This study examined the effects of resveratrol on the right and left atrium and left papillary muscle isolated from the rat heart.

Resveratrol decreases calcium sensitivity of vascular smooth muscle and enhances cytosolic calcium increase in endothelium.

Resveratrol causes endothelium dependent and independent relaxation of vascular smooth muscle. This study investigated the mechanisms behind the effect of resveratrol on vascular tone. Resveratrol (0.

How we derived a core curriculum: from institutional to national--Ankara University experience.

As the first phase of a major curricular change in a large medical school the core curriculum had to be determined. The criteria for the inclusion of topics in the core curriculum were defined for both clinical and basic sciences. A large group of faculty members have worked in 11 sub-groups to determine the core knowledge, skills and attitudes for undergraduate medical students.

Aqueous humor nitric oxide levels in patients with Behçet disease.

Purpose: The purpose of this study was to quantify aqueous humor nitric oxide levels in patients with Behçet uveitis and age-matched controls to assess how nitric oxide is involved in this ocular condition.

Methods: Samples of aqueous humor were collected from 11 patients with Behçet uveitis who were undergoing cataract surgery. Sampling was done by paracentesis at the beginning of the operation.