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Evaluation of community pharmacist follow-up supported by the use of healthcare technology for type 2 diabetes patients. EXPLORATORY RESEARCH IN CLINICAL AND SOCIAL PHARMACY 2023; 12:100330. [PMID: 37743852 PMCID: PMC10514548 DOI: 10.1016/j.rcsop.2023.100330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/26/2023] Open
Abstract
Background Prevalence of type 2 diabetes is high in Belgium (estimated at over 10%, 1 patient out of 3 being unaware of their diagnosis). Management based on a change of lifestyle and the adoption of health-promoting behaviors, supplemented when needed with drug treatment, prevents complications, improves the patient's quality of life and reduces mortality. Multidisciplinary patient support is essential. In this, pharmacists have a key role, e.g. through therapeutic patient education activities, in which they are increasingly involved. Moreover, research suggests that the use of mobile technologies can be a useful tool for helping patients with their daily life and disease management. Objectives This study aims at exploring the benefits of community pharmacist follow-up supported by the use of mobile technologies in the monitoring of individuals with type 2 diabetes. The presented intervention aimed to reinforce the patients' willingness to actively participate in the management of their disease and to adopt favorable health behaviors, in order to increase their level of medication adherence. Methods A quantitative quasi-experimental study was conducted in community pharmacies throughout Belgium over a 6-month period with 3 data collection periods (before, during and after the intervention). Primary outcomes, related to the level of medication adherence, and secondary outcomes, considered as markers of the patient's overall health, were analyzed. In addition, qualitative data concerning participants' opinions on their experience were collected. Results 66 patients participated in the study, with 50 remaining after 3 months and 46 completing the entire study. Statistical analyses did not show an improvement in the level of medication adherence. This parameter was high from the beginning, reflecting patients with controlled diabetes. However, statistically significant results were observed for systolic blood pressure and waist circumference (both improved), while other outcomes showed a positive trend or remained stable. Patient follow-up by the pharmacist was a positive experience for both parties which noted their interest and satisfaction for the project. Conclusions Although clinical results are not conclusive, patients were motivated and the attrition rate was low. Participants showed their interest in participating in this kind of project, opening up opportunities for further studies in the community pharmacy setting. As front-line health professionals, community pharmacists certainly have a key-role to play in therapeutic patient education and mobile technologies could be additional tools in this process.
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Technologies for the nitrogen oxides reduction from flue gas: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 714:136712. [PMID: 31991274 DOI: 10.1016/j.scitotenv.2020.136712] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 01/03/2020] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
The required energy of the global industry is mostly generated from fossil fuel sources, such as natural gas, gasoline, diesel, oil, and coal. Nitrogen oxides are one of the main air pollutants that are produced from the combustion of fossil fuels in stationary and mobile sources. Development of new technologies to decrease the NOx emission from exhaust gases is essential due to the harmful effect of NOx on the environment and human health. Compared with pre-combustion and combustion methods (with <50% NOx removal efficiency), the post-combustion methods with higher efficiency (above 80%) have attracted more attention in NOx elimination. This review describes the currently used technologies of NOx abatement. Different available post-combustion methods of NOx removal, including selective catalytic reduction (using different types of reducing reagents, including ammonia, hydrogen, hydrocarbons, and carbon monoxide), selective noncatalytic reduction, wet scrubbing, adsorption, electron beam, nonthermal plasma, and electrochemical reduction of NOx, are discussed.
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Toxins of toxin/antitoxin systems are inactivated primarily through promoter mutations. J Appl Microbiol 2019; 127:1859-1868. [PMID: 31429177 DOI: 10.1111/jam.14414] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 07/24/2019] [Accepted: 08/12/2019] [Indexed: 11/27/2022]
Abstract
AIMS Given the extreme toxicity of some of the toxins of toxin-antitoxin (TA) systems, we were curious how the cell silences toxins, if the antitoxin is inactivated or independent toxins are obtained via horizontal gene transfer. METHODS AND RESULTS Growth curves of Escherichia coli K12 BW25113 harbouring plasmid pCA24N to produce RalR, MqsR, GhoT or Hha toxins, showed toxin inactivation after 3 h. Sequencing plasmids from these cultures revealed toxin inactivation occurred primarily due to consistent deletions in the promoter. The lack of mutation in the structural genes was corroborated by a bioinformatics analysis of 1000 E. coli genomes which showed both conservation and little variability in the four toxin genes. For those strains that lacked a mutation in the plasmid, single nucleotide polymorphism analysis was performed to identify that chromosomal mutations iraM and mhpR inactivate the toxins GhoT and MqsR/GhoT respectively. CONCLUSION We find that the RalR (type I), MqsR (type II), GhoT (type V) and Hha (type VII) toxins are inactivated primarily by a mutation that inactivates the toxin promoter or via the chromosomal mutations iraM and mhpR. SIGNIFICANCE AND IMPACT OF THE STUDY This study demonstrates toxins of TA systems may be inactivated by mutations that primarily affect the toxin gene promoter instead of the toxin structural gene.
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The use of European Randomized study of Screening for Prostate Cancer calculator as a diagnostic tool for prostate biopsy indication. BRATISL MED J 2019; 120:331-335. [PMID: 31113194 DOI: 10.4149/bll_2019_054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND It is a well-known fact, that too many men are having prostate biopsy performed with negative biopsy results. The decision to undertake prostate biopsy is usually based on prostate specific antigen (PSA) level and digital rectal examination (DRE). A risk-based strategy may reduce the numbers of unnecessary prostate biopsies. METHODS Retrospective statistical analysis of data from 195 men undergoing their initial prostate biopsy from 1.1.2015 to 31.12.2015 based on elevated PSA ≥ 4.0 ng/ml and/or abnormal DRE were included. Subsequent risk stratification using the European Randomized study of Screening for Prostate Cancer calculator (ERSPC) was used with the intent to calculate the accuracy of ERSPC with the aim to avoid unnecessary (negative) prostate biopsies. RESULTS The specific values of sensitivity and specificity in this cohort were 94.34 % and 24.72 %. In direct comparison of PSA and ERSPC calculator, the differences between sensitivity, specificity, negative predictive value and false omission rate as negative were statistically insignificant, but the positive predictive value was on the edge of statistical significance (p = 0.054), slightly in favor for ERSPC calculator. CONCLUSION PSA still remains the single most predictive factor for identifying men with an increased risk of prostate cancer to be detected on prostate biopsy, but using other risk factors included in ERSPC can considerably reduce the numbers of unnecessary biopsies on initial screening (Tab. 4, Fig. 2, Ref. 23).
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Morbidity, mortality and long term survival in patients with vascular resection in pancreatic cancer - single center experience. Neoplasma 2019; 64:460-463. [PMID: 28253726 DOI: 10.4149/neo_2017_318] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Although venous resection in pancreatic cancer is widely used method, recently published data about its safety and survival benefit showed conflicting results. A retrospective case matched study was performed to compare the results of patients who underwent venous resection to those with no venous resection during radical surgery in pancreatic cancer.From January 2010 to December 2015, 297 pancreatic resections due to pancreatic tumor were performed in the National Cancer Institute (NCI). Fifty-three patients with venous resection were identified and enrolled into the study and matched with 66 patients without vascular resection during radical resection of pancreatic head/body cancer. Both groups matched for age, ASA score, need for preoperative biliary drainage and clinical staging of the tumor. Morbidity was determined according Clavien and Dindo classification [1] and was similar in both groups of patients (p = 0.48). Thirty day postoperative mortality was also equal in both groups 5.6 vs 4.5% (p > 0.99) and long term survival was with no significant difference. Median overall survival was 18.8 vs 20.7 months (p = 0.33) for patients with/without venous resection.Therefore we consider venous resection in pancreatic cancer safe procedure with equal morbidity and perioperative mortality as in patients with no need for vascular resection and with the same long term survival if R0 resection is achieved.
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Effect of dietary fibre addition in tomato sauce on the in vitro bioaccessibility of carotenoids. QUALITY ASSURANCE AND SAFETY OF CROPS & FOODS 2018. [DOI: 10.3920/qas2018.1264] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Oxidative stress and the amyloid beta peptide in Alzheimer's disease. Redox Biol 2017; 14:450-464. [PMID: 29080524 PMCID: PMC5680523 DOI: 10.1016/j.redox.2017.10.014] [Citation(s) in RCA: 1226] [Impact Index Per Article: 175.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/14/2017] [Accepted: 10/17/2017] [Indexed: 01/12/2023] Open
Abstract
Oxidative stress is known to play an important role in the pathogenesis of a number of diseases. In particular, it is linked to the etiology of Alzheimer’s disease (AD), an age-related neurodegenerative disease and the most common cause of dementia in the elderly. Histopathological hallmarks of AD are intracellular neurofibrillary tangles and extracellular formation of senile plaques composed of the amyloid-beta peptide (Aβ) in aggregated form along with metal-ions such as copper, iron or zinc. Redox active metal ions, as for example copper, can catalyze the production of Reactive Oxygen Species (ROS) when bound to the amyloid-β (Aβ). The ROS thus produced, in particular the hydroxyl radical which is the most reactive one, may contribute to oxidative damage on both the Aβ peptide itself and on surrounding molecule (proteins, lipids, …). This review highlights the existing link between oxidative stress and AD, and the consequences towards the Aβ peptide and surrounding molecules in terms of oxidative damage. In addition, the implication of metal ions in AD, their interaction with the Aβ peptide and redox properties leading to ROS production are discussed, along with both in vitro and in vivo oxidation of the Aβ peptide, at the molecular level. Oxidative stress plays a role in Alzheimer’s disease (AD), a multifactorial disease leading to loss of cognitive functions. Metal ions can bind the amyloid beta peptide (Aβ) and are involved in the production of reactive oxygen species (ROS). Oxidation targets neuronal membrane biomolecules and leads to disruption of membrane integrity. Aβ is damaged during ROS production, with consequences regarding aggregation, ROS production and cell toxicity.
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2186Prevalence and characteristics of anomalous coronary arteries origin from the opposite side in an unselected population of patients undergoing computed tomographic angiography. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.2186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Poster session 3Cell growth, differentiation and stem cells - Heart511The role of the endocannabinoid system in modelling muscular dystrophy cardiac disease with induced pluripotent stem cells.512An emerging role of T lymphocytes in cardiac regenerative processes in heart failure due to dilated cardiomyopathy513Canonical wnt signaling reverses the ‘aged/senescent’ human endogenous cardiac stem cell phenotype514Hippo signalling modulates survival of human induced pluripotent stem cell-derived cardiomyocytes515Biocompatibility of mesenchymal stem cells with a spider silk matrix and its potential use as scaffold for cardiac tissue regeneration516A snapshot of genome-wide transcription in human induced pluripotent stem cell-derived hepatocyte-like cells (iPSC-HLCs)517Can NOS/sGC/cGK1 pathway trigger the differentiation and maturation of mouse embryonic stem cells (ESCs)?518Introduction of external Ik1 to human-induced pluripotent stem cell-derived cardiomyocytes via Ik1-expressing HEK293519Cell therapy of the heart studied using adult myocardial slices in vitro520Enhancement of the paracrine potential of human adipose derived stem cells when cultured as spheroid bodies521Mechanosensitivity of cardiomyocyte progenitor cells: the strain response in 2D and 3D environments522The effect of the vascular-like network on the maturation of the human induced pluripotent stem cell derived cardiomyocytes.Transcriptional control and RNA species - Heart525Gene expression regulation in heart failure: from pathobiology to bioinformatics526Human transcriptome in idiopathic dilated cardiomyopathy - a novel high throughput screening527A high-throghput approach unveils putative miRNA-mediated mitochondria-targeted cardioprotective circuits activated by T3 in the post ischemia reperfusion setting528The effect of uraemia on the expression of miR-212/132 and the calcineurin pathway in the rat heartCytokines and cellular inflammation - Heart531Lack of growth differentiation factor 15 aggravates adverse cardiac remodeling upon pressure-overload in mice532Blocking heteromerization of platelet chemokines ccl5 and cxcl4 reduces inflammation and preserves heart function after myocardial infarction533Is there an association between low-dose aspirin use and clinical outcome in HFPEF? Implications of modulating monocyte function and inflammatory mediator release534N-terminal truncated intracellular matrix metalloproteinase-2 expression in diabetic heart.535Expression of CD39 and CD73 on peripheral T-cell subsets in calcific aortic stenosis536Mast cells in the atrial myocardium of patients with atrial fibrillation: a comparison with patients in sinus rhythm539Characteristics of the inflammatory response in patients with coronary artery disease and arterial hypertension540Pro-inflammatory cytokines as cardiovascular events predictors in rheumatoid arthritis and asymptomatic atherosclerosis541Characterization of FVB/N murinic bone marrow-derived macrophage polarization into M1 and M2 phenotypes542The biological expression and thoracic anterior pain syndromeSignal transduction - Heart545The association of heat shock protein 90 and TGFbeta receptor I is involved in collagen production during cardiac remodelling in aortic-banded mice546Loss of the inhibitory GalphaO protein in the rostral ventrolateral medulla of the brainstem leads to abnormalities in cardiovascular reflexes and altered ventricular excitablitiy547Selenoprotein P regulates pressure overload-induced cardiac remodeling548Study of adenylyl cyclase activity in erythrocyte membranes in patients with chronic heart failure549Direct thrombin inhibitors inhibit atrial myocardium hypertrophy in a rat model of heart failure and atrial remodeling550Tissue factor / FVIIa transactivates the IGF-1R by a Src-dependent phosphorylation of caveolin-1551Notch signaling is differently altered in endothelial and smooth muscle cells of ascending aortic aneurysm patients552Frizzled 5 expression is essential for endothelial proliferation and migration553Modulation of vascular function and ROS production by novel synthetic benzopyran analogues in diabetes mellitusExtracellular matrix and fibrosis - Heart556Cardiac fibroblasts as inflammatory supporter cells trigger cardiac inflammation in heart failure557A role for galectin-3 in calcific aortic valve stenosis558Omega-3 polyunsaturated fatty acids- can they decrease risk for ventricular fibrillation?559Serum levels of elastin derived peptides and circulating elastin-antielastin immune complexes in sera of patients with coronary artery disease560Endocardial fibroelastosis is secondary to hemodynamic alterations in the chick model of hypoplastic left heart syndrome561Dynamics of serum levels of matrix metalloproteinases in primary anterior STEMI patients564Deletion of the alpha-7 nicotinic acetylcholine receptor changes the vascular remodeling induced by transverse aortic constriction in mice.565Extracellular matrix remodelling in response to venous hypertension: proteomics of human varicose veinsIon channels, ion exchangers and cellular electrophysiology - Heart568Microtubule-associated protein RP/EB family member 1 modulates sodium channel trafficking and cardiac conduction569Investigation of electrophysiological abnormalities in a rabbit athlete's heart model570Upregulation of expression of multiple genes in the atrioventricular node of streptozotocin-induced diabetic rat571miR-1 as a regulator of sinoatrial rhythm in endurance training adaptation572Selective sodium-calcium exchanger inhibition reduces myocardial dysfunction associated with hypokalaemia and ventricular fibrillation573Effect of racemic and levo-methadone on action potential of human ventricular cardiomyocytes574Acute temperature effects on the chick embryonic heart functionVasculogenesis, angiogenesis and arteriogenesis577Clinical improvement and enhanced collateral vessel growth after monocyte transplantation in mice578The role of HIF-1 alpha, VEGF and obstructive sleep apnoea in the development of coronary collateral circulation579Initiating cardiac repair with a trans-coronary sinus catheter intervention in an ischemia/reperfusion porcine animal model580Early adaptation of pre-existing collaterals after acute arteriolar and venular microocclusion: an in vivo study in chick chorioallantoic membraneEndothelium583EDH-type responses to the activator of potassium KCa2.3 and KCa3.1 channels SKA-31 in the small mesenteric artery from spontaneously hypertensive rats584The peculiarities of endothelial dysfunction in patients with chronic renocardial syndrome585Endothelial dysfunction, atherosclerosis of the carotid arteries and level of leptin in patient with coronary heart disease in combination with hepatic steatosis depend from body mass index.586Role of non-coding RNAs in thoracic aortic aneurysm associated with bicuspid aortic valve587Cigarette smoke extract abrogates atheroprotective effects of high laminar flow on endothelial function588The prognostic value of anti-connective tissue antibodies in coronary heart disease and asymptomatic atherosclerosis589Novel potential properties of bioactive peptides from spanish dry-cured ham on the endothelium.Lipids592Intermediate density lipoprotein is associated with monocyte subset distribution in patients with stable atherosclerosis593The characteristics of dyslipidemia in rheumatoid arthritisAtherosclerosis596Macrophages differentiated in vitro are heterogeneous: morphological and functional profile in patients with coronary artery disease597Palmitoylethanolamide promotes anti-inflammatory phenotype of macrophages and attenuates plaque formation in ApoE-/- mice598Amiodarone versus esmolol in the perioperative period: an in vitro study of coronary artery bypass grafts599BMPRII signaling of fibrocytes, a mesenchymal progenitor cell population, is increased in STEMI and dyslipidemia600The characteristics of atherogenesis and systemic inflammation in rheumatoid arthritis601Role of adenosine-to-inosine RNA editing in human atherosclerosis602Presence of bacterial DNA in thrombus aspirates of patients with myocardial infarction603Novel E-selectin binding polymers reduce atherosclerotic lesions in ApoE(-/-) mice604Differential expression of the plasminogen receptor Plg-RKT in monocyte and macrophage subsets - possible functional consequences in atherogenesis605Apelin-13 treatment enhances the stability of atherosclerotic plaques606Mast cells are increased in the media of coronary lesions in patients with myocardial infarction and favor atherosclerotic plaque instability607Association of neutrophil to lymphocyte ratio with presence of isolated coronary artery ectasiaCalcium fluxes and excitation-contraction coupling610The coxsackie- and adenovirus receptor (CAR) regulates calcium homeostasis in the developing heart611HMW-AGEs application acutely reduces ICaL in adult cardiomyocytes612Measuring electrical conductibility of cardiac T-tubular systems613Postnatal development of cardiac excitation-contraction coupling in rats614Role of altered Ca2+ homeostasis during adverse cardiac remodeling after ischemia/reperfusion615Experimental study of sarcoplasmic reticulum dysfunction and energetic metabolism in failing myocardium associated with diabetes mellitusHibernation, stunning and preconditioning618Volatile anesthetic preconditioning attenuates ischemic-reperfusion injury in type II diabetic patients undergoing on-pump heart surgery619The effect of early and delayed phase of remote ischemic preconditioning on ischemia-reperfusion injury in the isolated hearts of healthy and diabetic rats620Post-conditioning with 1668-thioate leads to attenuation of the inflammatory response and remodeling with less fibrosis and better left ventricular function in a murine model of myocardial infarction621Maturation-related changes in response to ischemia-reperfusion injury and in effects of classical ischemic preconditioning and remote preconditioningMitochondria and energetics624Phase changes in myocardial mitochondrial respiration caused by hypoxic preconditioning or periodic hypoxic training625Desmin mutations depress mitochondrial metabolism626Methylene blue modulates mitochondrial function and monoamine oxidases-related ROS production in diabetic rat hearts627Doxorubicin modulates the real-time oxygen consumption rate of freshly isolated adult rat and human ventricular cardiomyocytesCardiomyopathies and fibrosis630Effects of genetic or pharmacologic inhibition of the ubiquitin/proteasome system on myocardial proteostasis and cardiac function631Suppression of Wnt signalling in a desmoglein-2 transgenic mouse model for arrhythmogenic cardiomyopathy632Cold-induced cardiac hypertrophy is reversed after thermo-neutral deacclimatization633CD45 is a sensitive marker to diagnose lymphocytic myocarditis in endomyocardial biopsies of living patients and in autopsies634Atrial epicardial adipose tissue derives from epicardial progenitors635Caloric restriction ameliorates cardiac function, sympathetic cardiac innervation and beta-adrenergic receptor signaling in an experimental model of post-ischemic heart failure636High fat diet improves cardiac remodelling and function after extensive myocardial infarction in mice637Epigenetic therapy reduces cardiac hypertrophy in murine models of heart failure638Imbalance of the VHL/HIF signaling in WT1+ Epicardial Progenitors results in coronary vascular defects, fibrosis and cardiac hypertrophy639Diastolic dysfunction is the first stage of the developing heart failure640Colchicine aggravates coxsackievirus B3 infection in miceArterial and pulmonary hypertension642Osteopontin as a marker of pulmonary hypertension in patients with coronary heart disease combined with chronic obstructive pulmonary disease643Myocardial dynamic stiffness is increased in experimental pulmonary hypertension partly due to incomplete relaxation644Hypotensive effect of quercetin is possibly mediated by down-regulation of immunotroteasome subunits in aorta of spontaneously hypertensive rats645Urocortin-2 improves right ventricular function and attenuates experimental pulmonary arterial hypertension646A preclinical evaluation of the anti-hypertensive properties of an aqueous extract of Agathosma (Buchu)Biomarkers648The adiponectin level in hypertensive females with rheumatoid arthritis and its relationship with subclinical atherosclerosis649Markers for identification of renal dysfunction in the patients with chronic heart failure650cardio-hepatic syndromes in chronic heart failure: North Africa profile651To study other biomarkers that assess during myocardial infarction652Interconnections of apelin levels with parameters of lipid metabolism in hypertension patients653Plasma proteomics in hypertension: prediction and follow-up of albuminuria during chronic renin-angiotensin system suppression654Soluble RAGE levels in plasma of patients with cerebrovascular events. Cardiovasc Res 2016. [DOI: 10.1093/cvr/cvw150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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IL-1α is a DNA damage sensor linking genotoxic stress signaling to sterile inflammation and innate immunity. Sci Rep 2015; 5:14756. [PMID: 26439902 PMCID: PMC4593953 DOI: 10.1038/srep14756] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Accepted: 08/28/2015] [Indexed: 11/25/2022] Open
Abstract
Environmental signals can be translated into chromatin changes, which alter gene expression. Here we report a novel concept that cells can signal chromatin damage from the nucleus back to the surrounding tissue through the cytokine interleukin-1alpha (IL-1α). Thus, in addition to its role as a danger signal, which occurs when the cytokine is passively released by cell necrosis, IL-1α could directly sense DNA damage and act as signal for genotoxic stress without loss of cell integrity. Here we demonstrate localization of the cytokine to DNA-damage sites and its subsequent secretion. Interestingly, its nucleo-cytosolic shuttling after DNA damage sensing is regulated by histone deacetylases (HDAC) and IL-1α acetylation. To demonstrate the physiological significance of this newly discovered mechanism, we used IL-1α knockout mice and show that IL-1α signaling after UV skin irradiation and DNA damage is important for triggering a sterile inflammatory cascade in vivo that contributes to efficient tissue repair and wound healing.
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SET7/9-dependent methylation of ARTD1 at K508 stimulates poly-ADP-ribose formation after oxidative stress. Open Biol 2013; 3:120173. [PMID: 24088713 PMCID: PMC3814718 DOI: 10.1098/rsob.120173] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
ADP-ribosyltransferase diphtheria toxin-like 1 (ARTD1, formerly PARP1) is localized in the nucleus, where it ADP-ribosylates specific target proteins. The post-translational modification (PTM) with a single ADP-ribose unit or with polymeric ADP-ribose (PAR) chains regulates protein function as well as protein–protein interactions and is implicated in many biological processes and diseases. SET7/9 (Setd7, KMT7) is a protein methyltransferase that catalyses lysine monomethylation of histones, but also methylates many non-histone target proteins such as p53 or DNMT1. Here, we identify ARTD1 as a new SET7/9 target protein that is methylated at K508 in vitro and in vivo. ARTD1 auto-modification inhibits its methylation by SET7/9, while auto-poly-ADP-ribosylation is not impaired by prior methylation of ARTD1. Moreover, ARTD1 methylation by SET7/9 enhances the synthesis of PAR upon oxidative stress in vivo. Furthermore, laser irradiation-induced PAR formation and ARTD1 recruitment to sites of DNA damage in a SET7/9-dependent manner. Together, these results reveal a novel mechanism for the regulation of cellular ARTD1 activity by SET7/9 to assure efficient PAR formation upon cellular stress.
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Imaging of the DNA damage-induced dynamics of nuclear proteins via nonlinear photoperturbation. JOURNAL OF BIOPHOTONICS 2013; 6:645-655. [PMID: 23420601 DOI: 10.1002/jbio.201200170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Revised: 10/10/2012] [Accepted: 10/18/2012] [Indexed: 06/01/2023]
Abstract
Understanding the cellular response to DNA strand breaks is crucial to decipher the mechanisms maintaining the integrity of our genome. We present a novel method to visualize how the mobility of nuclear proteins changes in response to localized DNA damage. DNA strand breaks are induced via nonlinear excitation with femtosecond laser pulses at λ = 1050 nm in a 3D-confined subnuclear volume. After a time delay of choice, protein mobility within this volume is analysed by two-photon photoactivation of PA-GFP fusion proteins at λ = 775 nm. By changing the position of the photoactivation spot with respect to the zone of lesion the influence of chromatin structure and of the distance from damage are investigated. As first applications we demonstrate a locally confined, time-dependent mobility increase of histone H1.2, and a progressive retardation of the DNA repair factor XRCC1 at damaged sites. This assay can be used to map the response of nuclear proteins to DNA damage in time and space.
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Highlighting the DNA damage response with ultrashort laser pulses in the near infrared and kinetic modeling. Front Genet 2013; 4:135. [PMID: 23882280 PMCID: PMC3712194 DOI: 10.3389/fgene.2013.00135] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 06/25/2013] [Indexed: 12/13/2022] Open
Abstract
Our understanding of the mechanisms governing the response to DNA damage in higher eucaryotes crucially depends on our ability to dissect the temporal and spatial organization of the cellular machinery responsible for maintaining genomic integrity. To achieve this goal, we need experimental tools to inflict DNA lesions with high spatial precision at pre-defined locations, and to visualize the ensuing reactions with adequate temporal resolution. Near-infrared femtosecond laser pulses focused through high-aperture objective lenses of advanced scanning microscopes offer the advantage of inducing DNA damage in a 3D-confined volume of subnuclear dimensions. This high spatial resolution results from the highly non-linear nature of the excitation process. Here we review recent progress based on the increasing availability of widely tunable and user-friendly technology of ultrafast lasers in the near infrared. We present a critical evaluation of this approach for DNA microdamage as compared to the currently prevalent use of UV or VIS laser irradiation, the latter in combination with photosensitizers. Current and future applications in the field of DNA repair and DNA-damage dependent chromatin dynamics are outlined. Finally, we discuss the requirement for proper simulation and quantitative modeling. We focus in particular on approaches to measure the effect of DNA damage on the mobility of nuclear proteins and consider the pros and cons of frequently used analysis models for FRAP and photoactivation and their applicability to non-linear photoperturbation experiments.
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Calcium-binding capacity of centrin2 is required for linear POC5 assembly but not for nucleotide excision repair. PLoS One 2013; 8:e68487. [PMID: 23844208 PMCID: PMC3699651 DOI: 10.1371/journal.pone.0068487] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Accepted: 05/29/2013] [Indexed: 12/25/2022] Open
Abstract
Centrosomes, the principal microtubule-organising centres in animal cells, contain centrins, small, conserved calcium-binding proteins unique to eukaryotes. Centrin2 binds to xeroderma pigmentosum group C protein (XPC), stabilising it, and its presence slightly increases nucleotide excision repair (NER) activity in vitro. In previous work, we deleted all three centrin isoforms present in chicken DT40 cells and observed delayed repair of UV-induced DNA lesions, but no centrosome abnormalities. Here, we explore how centrin2 controls NER. In the centrin null cells, we expressed centrin2 mutants that cannot bind calcium or that lack sites for phosphorylation by regulatory kinases. Expression of any of these mutants restored the UV sensitivity of centrin null cells to normal as effectively as expression of wild-type centrin. However, calcium-binding-deficient and T118A mutants showed greatly compromised localisation to centrosomes. XPC recruitment to laser-induced UV-like lesions was only slightly slower in centrin-deficient cells than in controls, and levels of XPC and its partner HRAD23B were unaffected by centrin deficiency. Interestingly, we found that overexpression of the centrin interactor POC5 leads to the assembly of linear, centrin-dependent structures that recruit other centrosomal proteins such as PCM-1 and NEDD1. Together, these observations suggest that assembly of centrins into complex structures requires calcium binding capacity, but that such assembly is not required for centrin activity in NER.
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Functional regulation of the DNA repair protein XPA by poly(ADP-ribose). Exp Gerontol 2013. [DOI: 10.1016/j.exger.2013.05.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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OP0263-PARE Patient Involvement in E-Health Research and Intervention Development. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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The response of the different soybean metallothionein isoforms to cadmium intoxication. J Inorg Biochem 2012; 117:306-15. [PMID: 23073037 DOI: 10.1016/j.jinorgbio.2012.08.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2012] [Revised: 08/29/2012] [Accepted: 08/29/2012] [Indexed: 10/27/2022]
Abstract
Cadmium is a highly toxic heavy metal for both plants and animals. The presence of Cd in agricultural soils is of major concern regarding its entry into the food chain, since Cd compounds are readily taken up by plants, and accumulated in edible parts due to their high solubility. In this study, we first demonstrate the high capacity for Cd concentration of soybean grains. Consequently, we considered the study and characterization of the molecular determinants of Cd accumulation -such as metallothioneins (MT)- to be of major practical importance. We report here the first characterization of the soybean MT system, with the identification of nine genes (one of which is a truncated pseudogene), belonging to the four plant MT types. The most highly expressed of each type was chosen for further function analysis. All of them are expressed at high levels in soybean tissues: GmMT1, GmMT2 and GmMT3 in roots, shoots and seeds, and GmMT4 only in seeds. The corresponding recombinant soybean MTs, synthesized in Escherichia coli cells cultured in metal supplemented media, exhibit greater cadmium than zinc binding capacity. These results suggest a definite role of GmMTs in Cd(II) accumulation as one of the main responses of soybean to an overload of this metal.
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Abstracts of the 10th Congress of the European Association of NeuroOncology. Marseille, France. September 6-9, 2012. Neuro Oncol 2012; 14 Suppl 3:iii1-109. [PMID: 22977921 DOI: 10.1093/neuonc/nos183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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19
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NEUROSURGERY. Neuro Oncol 2012. [DOI: 10.1093/neuonc/nos104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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20
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Baseline Serum Tryptase Levels in Patients who Suffered Anaphylaxis. J Allergy Clin Immunol 2012. [DOI: 10.1016/j.jaci.2011.12.245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Dissection of the xeroderma pigmentosum group C protein function by site-directed mutagenesis. Antioxid Redox Signal 2011; 14:2479-90. [PMID: 20649465 DOI: 10.1089/ars.2010.3399] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Xeroderma pigmentosum group C (XPC) protein is a sensor of helix-distorting DNA lesions, the function of which is to trigger the global genome repair (GGR) pathway. Previous studies demonstrated that XPC protein operates by detecting the single-stranded character of non-hydrogen-bonded bases opposing lesion sites. This mode of action is supported by structural analyses of the yeast Rad4 homologue that identified critical side chains making close contacts with a pair of extrahelical nucleotides. Here, alanine substitutions of the respective conserved residues (N754, F756, F797, F799) in human XPC were tested for DNA-binding activity, accumulation in tracks and foci of DNA lesions, nuclear protein mobility, and the induction of downstream GGR reactions. This study discloses a dynamic interplay between XPC protein and DNA, whereby the association with one displaced nucleotide in the undamaged strand mediates the initial encounter with lesion sites. The additional flipping-out of an adjacent nucleotide is necessary to hand over the damaged site to the next GGR player. Surprisingly, this mutagenesis analysis also reveals that the rapid intranuclear trafficking of XPC protein depends on constitutive interactions with native DNA, implying that the search for base damage takes place in living cells by a facilitated diffusion process.
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22
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The effect of neutralizing agent on the synthesis and characterization of Mn3O4 nanoparticles. RUSS J INORG CHEM+ 2010. [DOI: 10.1134/s0036023610120211] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Neurotrophin-4 couples to locally modulated ACh release at the end of neuromuscular synapse maturation. Neurosci Lett 2010; 468:72-4. [DOI: 10.1016/j.neulet.2009.10.066] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2009] [Revised: 10/20/2009] [Accepted: 10/21/2009] [Indexed: 11/26/2022]
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24
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Delayed Type Hypersensitivity to Iodinated Contrast Media: Diagnosis and Cross-reactivity. J Allergy Clin Immunol 2009. [DOI: 10.1016/j.jaci.2008.12.919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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25
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Abstract
Three dimensional light confinement and distinct pillar microcavity modes in the ultraviolet have been observed in pillar resonators with embedded colloidal ZnO quantum dots fabricated by focused ion beam milling. Results from a waveguide model for the mode patterns and their spectral positions are in excellent agreement with the experimental data.
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We-P11:171 Haplotypes in the KCNMA1 potassium channel alpha-subunit gene as risk factors for human essential hypertension. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)81525-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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RhoA and lysophosphatidic acid are involved in the actin cytoskeleton reorganization of astrocytes exposed to ethanol. J Neurosci Res 2003; 72:487-502. [PMID: 12704810 DOI: 10.1002/jnr.10594] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Astroglial cells play an important role in maintaining neuronal function in the adult and in the developing nervous system. Ethanol exposure induces profound alterations in the astrogliogenesis process, affecting important cell functions, including intracellular protein trafficking. Because the actin cytoskeleton plays a crucial role in intracellular protein transport, the aim of the present study was to analyze the effects of ethanol on actin cytoskeleton organization and the involvement of the RhoA signaling pathway in these effects. We show that RhoA and lysophosphatidic acid (LPA), an upstream activator of RhoA, stimulate the formation of stress fibers and focal adhesion in cortical astrocytes in primary culture. Exposure of cultured astrocytes to different concentrations of ethanol profoundly disorganizes the actin cytoskeleton, leading to the formation of actin rings at the cell periphery and decreasing the content of focal adhesion proteins. Furthermore, LPA treatment or RhoA transfection revert the ethanol-induced actin alterations in astrocytes, whereas transfection with an inactive mutant of RhoA is unable to revert the actin ring organization. In addition, inhibition of endogenous RhoA by C3 exoenzyme effectively blocks ethanol-induced actin ring formation. These results suggest that the effects of alcohol on actin cytoskeleton organization are mediated by the RhoA signaling pathway. Disruptions in actin organization may impair important astrocyte functions, participating in ethanol-induced astroglial and brain damage during development.
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Heterobinuclear PtAg compounds with platinum-silver bonds unsupported by covalent bridges. Molecular structure of (C6F5)3(SC4H8)PtAgPPh3. Inorg Chem 2002. [DOI: 10.1021/ic00256a006] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Formation of isomeric dimolybdenum(II) compounds using the potentially ambidentate ligands [R2PC(S)NR']- (R/R' = Ph/Ph, Ph/Me) and [Me2NC(S)NPh]-. Inorg Chem 2002. [DOI: 10.1021/ic00179a031] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Unusual bridging of the metal centers in a heterometallic titanium-platinum complex. X-ray structure of [Cp2Ti(.mu.2-.eta.1-C.tplbond.C-tert-Bu)2Pt(C6F5)2].cntdot.CH2Cl2. Organometallics 2002. [DOI: 10.1021/om00025a003] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Synthesis and structure of tetrabutylammonium hexakis(perfluorophenyl)bis(.mu.-tetrahydrothiophene)diplatinum argentate(1-), a trinuclear compound displaying two structurally different anions in the solid state. Inorg Chem 2002. [DOI: 10.1021/ic00075a045] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Tetranuclear homo- or heterobimetallic asymmetric palladium(II)-platinum(II) complexes with single halide bridges. Molecular structure of [Pt(C6F5)2(.mu.-Br)Pd(.eta.4-1,5-C8H12)(.mu.-Br)Pt(C6F5)2(.mu.-Br)Pd(.eta.4-1,5-C8H12)(.mu.-Br)]. Organometallics 2002. [DOI: 10.1021/om00096a014] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Synthesis, x-ray structure, and chemical reactivity of the tetranuclear cluster (NBu4)2[Pt2Ag2Cl4(C6F5)4]. X-ray structure of the binuclear compound (NBu4)[PtAgCl2(C6F5)2PPh3]. Inorg Chem 2002. [DOI: 10.1021/ic00220a045] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
Neural cell adhesion molecule (NCAM) constitutes a group of cell surface glycoproteins that regulate cell-cell interactions in the developing and adult brain. Endocytosis is a mechanism which dynamically controls the amount of cell surface NCAM expression and may involve the rapid changes occurring in NCAM expression under certain physiological or pathological conditions. However, the endocytic pathway of NCAM is presently unknown. Using astrocytes in culture and immunofluorescence we show that NCAM is internalized and that the immunolabelling presents a high degree of colocalization with clathrin, alpha-adaptin and transferrin, suggesting that NCAM is endocytosed by a clathrin-dependent pathway. Potassium depletion which disrupts clathrin-mediated endocytosis, inhibited internalization of NCAM. Electron microscopy and immunogold studies also demonstrate that the surface of clathrin-coated vesicles are also immunolabelled for both alpha-adaptin and PSA-NCAM, the highly sialylated isoform of NCAM. Furthermore, immunoprecipation studies demonstrate that NCAM is associated with both clathrin and alpha-adaptin, a component of adaptor complex AP-2, in brain, neurons and astrocytes. These findings indicate that NCAM is mainly endocytosed via clathrin-coated vesicles, suggesting a possible mechanism that may contribute to the rapid changes in NCAM expression at the cell surface.
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Posttranslational modification of the glycosylation inhibiting factor (GIF) gene product generates bioactive GIF. Proc Natl Acad Sci U S A 2000; 97:13251-6. [PMID: 11069294 PMCID: PMC27211 DOI: 10.1073/pnas.230445397] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Glycosylation inhibiting factor (GIF) and macrophage migration inhibitory factor (MIF) share an identical structure gene. Here we unravel two steps of posttranslational modifications in GIF/MIF molecules in human suppressor T (Ts) cell hybridomas. Peptide mapping and MS analysis of the affinity-purified GIF from the Ts cells revealed that one modification is cysteinylation at Cys-60, and the other is phosphorylation at Ser-91. Cysteinylated GIF, but not the wild-type GIF/MIF, possessed immunosuppressive effects on the in vitro IgE antibody response and had high affinity for GIF receptors on the T helper hybridoma cells. In vitro treatment of wild-type recombinant human GIF/MIF with cystine resulted in preferential cysteinylation of Cys-60 in the molecules. The cysteinylated recombinant human GIF and the Ts hybridoma-derived cysteinylated GIF were comparable both in the affinity for the receptors and in the immunosuppressive activity. Polyclonal antibodies specific for a stretch of the amino acid sequence in alpha2-helix of GIF bound bioactive cysteinylated GIF but failed to bind wild-type GIF/MIF. These results strongly suggest that cysteinylation of Cys-60 and consequent conformational changes in the GIF/MIF molecules are responsible for the generation of GIF bioactivity.
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Long-term effects of clinical outcome with low and high dose in the Captopril in Heart Insufficient Patients Study (CHIPS). Acta Cardiol 2000; 55:1-7. [PMID: 10707752 DOI: 10.2143/ac.55.1.2005711] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
BACKGROUND Although angiotensin-converting enzyme inhibitors are recommended as first line therapy in patients with chronic heart failure, the target doses proven to be effective in major morbidity and mortality trials (e.g. captopril 50 mg b.i.d), are generally not used in daily practice in Belgium. AIM The objective of this study (CHIPS, Captopril in Heart Insufficient Patients Study) was to compare the long-term effects of a low dose (25 mg b.i.d.) and a high dose (50 mg b.i.d.) of captopril in mild to moderate heart failure. After a titration period of at least 10 days, patients who tolerated 50 mg b.i.d., were randomly assigned to receive either the low dose or the high dose of captopril and followed up to 2 years. RESULTS 298 patients were included and were followed up for a mean of 12 months. Progression in heart failure seems to be favourably influenced by therapy with high dose in comparison to low dose; a relative difference of 29% in the rates of heart failure worsening was observed between the two doses, 31.5% and 22.4% for low and high dose (p = 0.088), respectively. Treatment with high dose showed also a trend to benefit as compared to low dose in reducing the number of hospitalizations for all causes from 22.4 to 14.5% (p = 0.1) and for congestive heart failure from 14.7 to 7.2% (p = 0.06); moreover, the incidence of fatal and nonfatal cardiac events showed a trend in favour of the high dose of 22% (p = 0.142). The total number of adverse events was comparable for both doses, but dizziness and hypotension were a little more frequently reported in the high-dose group. Serum creatinine values showed no significant changes either in the low-dose or in the high-dose group. CONCLUSION In the CHIPS-study, in comparison to a low dose, therapy with a high dose of captopril tends to improve the long-term clinical outcome of patients with mild to moderate heart failure without significantly more toxicity.
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[Therapeutic compliance]. REVUE MEDICALE DE BRUXELLES 1998; 19:A49-50. [PMID: 9553457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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38
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[Cardiological fitness examination of the athlete and prevention of sudden death]. REVUE MEDICALE DE BRUXELLES 1996; 17:176-80. [PMID: 8927841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Sudden death happening to an athlete is a frightening tragedy. Epidemiological data are quite controversial but sudden death occurring during sporting activity is probably not a rare occurrence. Beside drug abuse and accidental causes, cardiovascular abnormalities represent the principal origin of sudden death. Cardiomyopathy in young athletes and coronary artery disease in older athletes are the underlying pathologic substrates for most incidences. A certain proportion of sudden death in apparently healthy athletes was preceded by symptoms of exercise intolerance; pre participation evaluation directed to detect the cardiovascular abnormalities is probably of more value to reduce sudden cardiac death in athletes than detailed and routine sophisticated investigations.
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Belgian multicenter clinical study of alfuzosin, a selective alpha 1-blocker, in the treatment of benign prostatic hyperplasia. The Alfuzosin Belgian Group. ACTA UROLOGICA BELGICA 1994; 62:15-21. [PMID: 7540794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The effects of alfuzosin, a potent alpha 1-blocker, were assessed in patients with benign prostatic hyperplasia, in a double-blind, multicenter, placebo-controlled, cross-over study. Treatment duration was 4 weeks for both alfuzosin and placebo. A significant beneficial effect of alfuzosin (7.5 to 10 mg a day) on clinical subjective and objective criteria was observed as compared to placebo: total Boyarsky score decreased by 1.63 points, peak urinary flow improved by 2.03 ml/sec. Alfuzosin was well tolerated, the observed adverse events corresponded to the pharmacological properties of this compound, and resolved rapidly.
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Phase II trial of cisplatin and tegafur (Ftorafur) as initial therapy in squamous-cell carcinoma of the head and neck. Am J Clin Oncol 1990; 13:312-4. [PMID: 2116085 DOI: 10.1097/00000421-199008000-00009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Cisplatin and 5-fluorouracil infusion combination produces a high response rate in squamous-cell carcinoma of the head and neck. Tegafur (Ftorafur) is an analog of 5-fluorouracil, and its oral form is well absorbed. This agent has a moderate toxicity. We report a study to determine the efficacy of the cisplatin (100 mg/m2, day 1) and tegafur (1,000 mg/m2 daily for 21 days) combination. Thirty-nine patients entered the study; 36 were evaluable for response. Overall response was 94%, with a 22% complete response. Toxicity was moderate. We conclude that the cisplatin and tegafur combination is active in untreated patients with head and neck cancer.
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Phase II trial of carboplatin and tegafur (Ftorafur) as induction therapy in squamous-cell carcinoma of the head and neck. Am J Clin Oncol 1990; 13:277-9. [PMID: 2116084 DOI: 10.1097/00000421-199008000-00001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Cisplatin and 5-fluorouracil by continuous infusion combination produces a high response rate in squamous-cell carcinoma of the head and neck (SCCHN). Carboplatin (CBDCA) is a cisplatin analogue with lower emetic potential and nephrotoxicity, although the myelosuppression potential is higher. Tegafur (ftorafur, FT) is an analogue of 5-fluorouracil. It is absorbed well in its oral form and has moderate gastrointestinal and hematologic toxicity. This clinical trial tested the association of CBDCA i.v. plus FT p.o. in patients with SCCHN who had not been previously treated. Twenty-one patients were evaluable for response; the overall response was 62% (33% complete response, 29% partial response). Toxicity was moderate in most of the patients, although there was a treatment-related death.
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Synthesis and reactivity of palladium(I) derivatives with bis(diphenylphosphino)amine. X-ray crystal structure of Pd2(μ-dppa)2Cl2·(CH3)2CO. Polyhedron 1989. [DOI: 10.1016/s0277-5387(00)81118-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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44
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Syntheses and reactivity of pentachlorophenylpalladium(I) derivatives. Molecular structure of Pd2(μ-dppm)2(C6Cl5)2. J Organomet Chem 1986. [DOI: 10.1016/s0022-328x(00)99349-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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45
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[Presence of atypical germ cells in cryptorchid testicles]. Actas Urol Esp 1986; 10:271-4. [PMID: 2875622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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46
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Synthesis and molecular structure of (NBu4)x[Pt(C6Cl5)2(μ-Cl)2Aglx: A novel chain polymeric compound. Polyhedron 1986. [DOI: 10.1016/s0277-5387(00)84456-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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[Duodeno-biliary junction (manometric study)]. REVISTA ESPANOLA DE LAS ENFERMEDADES DEL APARATO DIGESTIVO 1975; 46:581-94. [PMID: 1208956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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[Hemodynamic study of portal hypertension in the metastatic liver]. REVISTA ESPANOLA DE LAS ENFERMEDADES DEL APARATO DIGESTIVO 1973; 39:299-307. [PMID: 4699119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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49
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[Evaluation of the competetence of the gastroesophagic junction by means of the manometric test of abdominal compression]. REVISTA ESPANOLA DE LAS ENFERMEDADES DEL APARATO DIGESTIVO 1972; 38:571-80. [PMID: 4637762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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