Listar por tema "CELLS"
Mostrando ítems 21-40 de 88
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Cysteinyl leukotriene receptors in tonsillar B- and T-lymphocytes from children with obstructive sleep apnea
(2012)Objectives: Cysteinyl leukotrienes have been implicated in the pathogenesis of adenotonsillar hypertrophy in children with obstructive sleep apnea (OSA). This study aimed to quantify the expression of cysteinyl leukotriene ... -
Cytokine levels in the sera of patients with idiopathic pulmonary fibrosis
(2006)Background: Idiopathic pulmonary fibrosis (IPF) is a fibroprotiferative disorder. Cytokines contribute an important but yet undefined role to its pathogenesis. Objectives: The present study aims to compare serum levels of ... -
Daily supplementation with ghrelin improves in vitro bovine blastocysts formation rate and alters gene expression related to embryo quality
(2014)Ghrelin is a gastric peptide having regulatory role in the reproductive system functionality, acting mainly at central level. Because the expression of ghrelin system (ghrelin and its receptor) has been detected in the ... -
DNA damage and repair capacity in lymphocytes from obstructive sleep apnea patients
(2007)Obstructive sleep apnea (OSA) syndrome is a respiratory disease that is linked to heart attacks and high blood pressure. In the present study, we used the Comet assay to compare basal DNA damage and DNA damage induction ... -
DNA damage in a human population affected by chronic psychogenic stress
(2003)The effects of chronic psychogenic stress on the expression of DNA damage and cellular response to the damage were investigated. Using the comet assay, basal DNA damage was found to be similar in lymphocytes of both affected ... -
DNA methylation regulates sclerostin (SOST) expression in osteoarthritic chondrocytes by bone morphogenetic protein 2 (BMP-2) induced changes in Smads binding affinity to the CpG region of SOST promoter
(2015)Introduction: Sclerostin (SOST), a soluble antagonist of Wnt signaling, is expressed in chondrocytes and contributes to chondrocytes' hypertrophic differentiation; however its role in osteoarthritis (OA) pathogenesis is ... -
Effect of aerobic training on (99m)Tc-methoxy isobutyl isonitrile ((99m)Tc-sestamibi) uptake by myocardium and skeletal muscle: implication for noninvasive assessment of muscle metabolic profile
(2008)Aim: The effect of long-term endurance training on skeletal muscle and myocardial uptake of (99m)Tc-sestamibi, a radiopharmaceutical accumulating in the mitochondria, was investigated. Methods: Twenty-six Wistar rats were ... -
Effect of plasmin, plasminogen activators and a plasmin inhibitor on bovine in vitro embryo production
(2008)In the present study, four experiments were conducted to investigate the possible effects of plasminogen activators (urokinase-type plasminogen activator (u-PA) and tissue-type plasminogen activator (t-PA)), plasmin, and ... -
Effects of dietary vitamin A intake on acrosin- and plasminogen-activator activity of ram spermatozoa
(2005)Acrosin and plasminogen activators are proteolytic enzymes of ram spermatozoa that play an essential role in the induction of the acrosome reaction, as well as the binding of spermatozoa to the oocyte and their penetration ... -
Effects of pulsed electric fields on DNA of human lymphocytes
(2006)The effects of pulsed electric fields of low frequency (50 Hz) on DNA of human lymphocytes were investigated. The influence of additional external factors, such as hydrogen peroxide (H2O2) and gamma-irradiation, as well ... -
An efficient synthesis of 3-fluoro-5-thio-xylofuranosyl nucleosides of thymine, uracil, and 5-fluorouracil as potential antitumor or/and antiviral agents
(2007)1,2:5,6-Di-O-isopropylidene-alpha-D-glucofuranose by the sequence of mild oxidation, reduction, fluorination, periodate oxidation, borohydride reduction, and sulfonylation gave 3-deoxy-3-fluoro-1,2-O-isopropylidene-5-O-p ... -
Endothelin-1 overexpression: a potential biomarker of unfavorable prognosis in non-metastatic muscle-invasive bladder cancer
(2015)Endothelin-1 (ET-1) is a multifunctional peptide exerting its effects via receptors A and B. ET-1 and its receptors, endothelin axis (ET axis), play a promoting role in cancer biology. Alterations of proteins of ET axis ... -
Endothelin-1 Signaling Promotes Fibrosis In Vitro in a Bronchopulmonary Dysplasia Model by Activating the Extrinsic Coagulation Cascade
(2011)Neonatal respiratory distress syndrome can progress to bronchopulmonary dysplasia (BPD), a serious pulmonary fibrotic disorder. Given the involvement of the extrinsic coagulation cascade in animal models of lung fibrosis, ... -
Endothelin-3 and PRL levels in the maternal and fetal circulation at delivery
(2007)Objective: The aim of the present cross-sectional study was to test the hypothesis that endothelin-3 (ET-3) is involved in PRL secretion via systemic hormonal interaction during labor. Materials and methods: Fifty healthy ... -
Evidence for non genomic action of 17 beta estradiol on transepithelial resistance of human fetal membranes
(2011)Background: The role of hormones in the transport mechanisms of human fetal membranes in pregnancy is unclear. Estrogens are essential hormones in pregnancy and they play an important role in the ion transport via membranes. ... -
High temperature electrolyzer based on solid oxide co-ionic electrolyte: A theoretical model
(2007)In the present work a theoretical model of a solid oxide electrolyzer based on an electrolyte having both oxygen ion and proton conductivity is considered. The main parameters of the electrolytic process and an electrolyzer ... -
Hypoxia inducible factor (HIF-1a and HIF-2a) expression in early esophageal cancer and response to photodynamic therapy and radiotherapy
(2001)Hypoxia inducible factor 1a and 2a (HIF-1a and HIF-2a) are key proteins regulating cellular response to hypoxia, Because the efficacy of photodynamic therapy (PDT) is dependent on the presence of oxygen, the assessment of ... -
Identification, quantification and fine structural characterization of glycosaminoglycans from uterine leiomyoma and normal myometrium
(2001)The type, amount and fine chemical composition of glycosaminoglycans (GAGs) present both in human normal myometrium and uterine leiomyoma have been studied. GAGs were fractionated by ion-exchange chromatography on ... -
IGF-1 alters the human parietal pleural electrochemical profile by inhibiting ion trans-cellular transportation after interaction with its receptor
(2013)Objective: The effect of IGF-1 in the human pleural permeability and the underlying mechanisms involved were investigated. Design: Specimens from thoracic surgical patients were mounted in Ussing chambers. Solutions ... -
In vitro effects of endothelin-1 on the contractility of myometrium obtained from pre- and postmenopausal women
(2001)This study was conducted to evaluate the responsiveness of human nonpregnant myometrium to endothelin 1 (ET1) (10(-10) M-10(-6) M) and KCl (80 mM) in relation to the hormonal profile of the women, who were allocated into ...