1
|
Laser Hair Removal From a Hairy Pharyngeal Flap. ACTAS DERMO-SIFILIOGRAFICAS 2023; 114:923-925. [PMID: 35753366 DOI: 10.1016/j.ad.2022.05.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 11/26/2022] Open
|
2
|
[Translated article] Laser Hair Removal From a Hairy Pharyngeal Flap. ACTAS DERMO-SIFILIOGRAFICAS 2023; 114:T923-T925. [PMID: 37734545 DOI: 10.1016/j.ad.2023.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 09/23/2023] Open
|
3
|
E-selectin-targeted copolymer reduces atherosclerotic lesions, adverse cardiac remodeling, and dysfunction. J Control Release 2018; 288:136-147. [DOI: 10.1016/j.jconrel.2018.08.029] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 08/15/2018] [Accepted: 08/20/2018] [Indexed: 01/08/2023]
|
4
|
Beneficial Effect of the SGLT2 Inhibitor Empagliflozin on Glucose Homeostasis and Cardiovascular Parameters in the Cohen Rosenthal Diabetic Hypertensive (CRDH) Rat. J Cardiovasc Pharmacol Ther 2018; 23:358-371. [PMID: 29627992 DOI: 10.1177/1074248418763808] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The effectiveness of empagliflozin (EMPA), a sodium glucose cotransporter type 2 inhibitor, on the kidney, pancreas, and heart was investigated in the Cohen Rosenthal diabetic hypertensive rat model (CRDH rat). Six-week-old CRDH male rats were fed a sugar diet (SD) and treated with the compound EMPA (group Drug/SD) or respective comparator with vehicle (group Veh/SD). A control group was fed a regular diet without treatment (group Veh/P). Preventive treatment with EMPA was measured during 4 months of follow-up. The treatment effect was evaluated according to results observed after 4 months in group Drug/SD when compared to those in group Veh/SD. Significant effect resulted in the following parameters: enhancement of urinary glucose excretion in association with diuresis; amelioration of postprandial hyperglycemia and fasting blood glucose levels; and decrease in calculated Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) as well as lower systolic and diastolic blood pressures. At the end of treatment, EMPA preserved nephrin integrity in the kidney, reduced proteinuria, and prevented diabetes-induced damage to glomerular diaphragm structure. In the pancreas, EMPA demonstrated an impressive decrease in fatty infiltration and atrophy. Blood pressure was significantly reduced in the EMPA-treated group (15 ± 5.1 mm Hg, P < .05) in contrast to the vehicle and control groups. Finally, compared to controls, EMPA significantly reduced left ventricle (LV) mass and LV systolic dilatation, according to 2-dimensional echocardiography. The importance of the study lies in demonstrating the efficacy of an antidiabetic drug with beneficial effects on blood pressure, weight, kidney, and pancreas and a positive effect on the heart.
Collapse
|
5
|
Abstract
BACKGROUND The immune system plays a pivotal role in myocardial homeostasis and response to injury. Interleukins-4 and -13 are anti-inflammatory type-2 cytokines, signaling via the common interleukin-13 receptor α1 chain and the type-2 interleukin-4 receptor. The role of interleukin-13 receptor α1 in the heart is unknown. METHODS AND RESULTS We analyzed myocardial samples from human donors (n=136) and patients with end-stage heart failure (n=177). We found that the interleukin-13 receptor α1 is present in the myocardium and, together with the complementary type-2 interleukin-4 receptor chain Il4ra, is significantly downregulated in the hearts of patients with heart failure. Next, we showed that Il13ra1-deficient mice develop severe myocardial dysfunction and dyssynchrony compared to wild-type mice (left ventricular ejection fraction 29.7±9.9 versus 45.0±8.0; P=0.004, left ventricular end-diastolic diameter 4.2±0.2 versus 3.92±0.3; P=0.03). A bioinformatic analysis of mouse hearts indicated that interleukin-13 receptor α1 regulates critical pathways in the heart other than the immune system, such as extracellular matrix (normalized enrichment score=1.90; false discovery rate q=0.005) and glucose metabolism (normalized enrichment score=-2.36; false discovery rate q=0). Deficiency of Il13ra1 was associated with reduced collagen deposition under normal and pressure-overload conditions. CONCLUSIONS The results of our studies in humans and mice indicate, for the first time, a role of interleukin-13 receptor α1 in myocardial homeostasis and heart failure and suggests a new therapeutic target to treat heart disease.
Collapse
|
6
|
SIRT6 Overexpression Improves Various Aspects of Mouse Healthspan. J Gerontol A Biol Sci Med Sci 2017; 72:603-615. [PMID: 27519885 DOI: 10.1093/gerona/glw152] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 07/18/2016] [Indexed: 01/08/2023] Open
Abstract
The extension in human lifespan in the last century results in a significant increase in incidence of age related diseases. It is therefore crucial to identify key factors that control elderly healthspan. Similar to dietary restriction, mice overexpressing the NAD+ dependent protein deacylase SIRT6 (MOSES) live longer and have reduced IGF-1 levels. However, it is as yet unknown whether SIRT6 also affects various healthspan parameters. Here, a range of age related phenotypes was evaluated in MOSES mice. In comparison to their wild-type (WT) littermates, old MOSES mice showed amelioration of a variety of age-related disorders, including: improved glucose tolerance, younger hormonal profile, reduced age-related adipose inflammation and increased physical activity. The increased activity was accompanied with increased muscle AMP-activated protein kinase (AMPK) activity. Altogether, these results indicate that overexpression of SIRT6 in mice retards important aspects of the aging process and suggest SIRT6 to be a potential therapeutic target for the treatment of a set of age-related disorders.
Collapse
|
7
|
Left Ventricular Dysfunction Switches Mesenchymal Stromal Cells Toward an Inflammatory Phenotype and Impairs Their Reparative Properties Via Toll-Like Receptor-4. Circulation 2017; 135:2271-2287. [PMID: 28356441 DOI: 10.1161/circulationaha.116.023527] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 03/17/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND Little is known about the potentially unfavorable effects of mesenchymal stromal cell (MSC) activation on the heart. MSCs can respond to tissue injury by anti- or proinflammatory activation. We aimed to study the potential negative interaction between left ventricular dysfunction (LVD) and MSC activation. METHODS We isolated MSCs from cardiac and subcutaneous fat tissues of mice with LVD 28 days after myocardial infarction or sham operation. To evaluate the effect of LVD on MSCs, we characterized cardiac MSCs and subcutaneous MSCs in vitro. Subsequently, we injected MSCs or saline into the infarcted myocardium of mice and evaluated LV remodeling and function 28 days after myocardial infarction. To test the hypothesis that toll-like receptor 4 (TLR4) mediates proinflammatory polarization of MSCs, we characterized cardiac MSCs from TLR4-/- and wild-type (WT) mice after inflammatory stimulation in vitro. Next, we transplanted cardiac MSCs from TLR4-/- and WT male mice into the infarcted myocardium of female WT mice and evaluated infarct size, MSC retention, inflammation, remodeling, and function after 7 days. RESULTS LVD switched cardiac MSCs toward an inflammatory phenotype, with increased secretion of inflammatory cytokines as well as chemokines. The effect of LVD on subcutaneous MSCs was less remarkable. Although transplantation of cardiac MSCs and subcutaneous MSCs from LVD and sham hearts did not improve LV remodeling and function, cardiac MSCs from LVD exacerbated anterior wall thinning 28 days after myocardial infarction. The inflammatory polarization of cardiac MSCs by LVD was mediated by TLR4, as we found less secretion of inflammatory cytokines and higher secretion of anti-inflammatory cytokines from activated cardiac MSCs of TLR4-deficient mice, compared with WT cardiac MSCs. Significantly, TLR4 deficiency preserved the expression of CD47 (don't eat me signal) on cardiac MSCs after both TLR4 stimulation in vitro and transplantation into the infarcted heart. Compared with WT cardiac MSCs and saline, TLR4-/- cardiac MSCs survived in the cardiac tissue and maintained their reparative properties, reduced infarct size, increased scar thickness, and attenuated LV dilatation 7 days after myocardial infarction. CONCLUSIONS The environment of the failing and infarcted myocardium drives resident and transplanted MSCs toward a proinflammatory phenotype and restricts their survival and reparative effects in a mechanism mediated by TLR4.
Collapse
|
8
|
Abstract
Background Macrophages and Wnt proteins (Wnts) are independently involved in cardiac development, response to cardiac injury, and repair. However, the role of macrophage‐derived Wnts in the healing and repair of myocardial infarction (MI) is unknown. We sought to determine the role of macrophage Wnts in infarct repair. Methods and Results We show that the Wnt pathway is activated after MI in mice. Furthermore, we demonstrate that isolated infarct macrophages express distinct Wnt pathway components and are a source of noncanonical Wnts after MI. To determine the effect of macrophage Wnts on cardiac repair, we evaluated mice lacking the essential Wnt transporter Wntless (Wls) in myeloid cells. Significantly, Wntless‐deficient macrophages presented a unique subset of M2‐like macrophages with anti‐inflammatory, reparative, and angiogenic properties. Serial echocardiography studies revealed that mice lacking macrophage Wnt secretion showed improved function and less remodeling 30 days after MI. Finally, mice lacking macrophage‐Wntless had increased vascularization near the infarct site compared with controls. Conclusions Macrophage‐derived Wnts are implicated in adverse cardiac remodeling and dysfunction after MI. Together, macrophage Wnts could be a new therapeutic target to improve infarct healing and repair.
Collapse
|
9
|
Targeting and modulating infarct macrophages with hemin formulated in designed lipid-based particles improves cardiac remodeling and function. J Control Release 2017; 257:21-31. [PMID: 28065861 DOI: 10.1016/j.jconrel.2017.01.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 12/28/2016] [Accepted: 01/02/2017] [Indexed: 12/11/2022]
Abstract
Uncontrolled activation of pro-inflammatory macrophages after myocardial infarction (MI) accelerates adverse left ventricular (LV) remodeling and dysfunction. Hemin, an iron-containing porphyrin, activates heme oxygenase-1 (HO-1), an enzyme with anti-inflammatory and cytoprotective properties. We sought to determine the effects of hemin formulated in a macrophage-targeted lipid-based carrier (denoted HA-LP) on LV remodeling and function after MI. Hemin encapsulation efficiency was ~100% at therapeutic dose levels. In vitro, hemin/HA-LP abolished TNF-α secretion from macrophages, whereas the same doses of free hemin and drug free HA-LP had no effect. Hemin/HA-LP polarized peritoneal and splenic macrophages toward M2 anti-inflammatory phenotype. We next induced MI in mice and allocated them to IV treatment with hemin/HA-LP (10mg/kg), drug free HA-LP, free hemin (10mg/kg) or saline, one day after MI. Active in vivo targeting to infarct macrophages was confirmed with HA-LP doped with PE-rhodamine. LV remodeling and function were assessed by echocardiography before, 7, and 30days after treatment. Significantly, hemin/HA-LP effectively and specifically targets infarct macrophages, switches infarct macrophages toward M2 anti-inflammatory phenotype, improves angiogenesis, reduces scar expansion and improves infarct-related regional function. In conclusion, macrophage-targeted lipid-based drug carriers with hemin switch macrophages into an anti-inflammatory phenotype, and improve infarct healing and repair. Our approach presents a novel strategy to modulate inflammation and improve infarct repair.
Collapse
|
10
|
Optimization of Irreversible Electroporation Protocols for In-vivo Myocardial Decellularization. PLoS One 2016; 11:e0165475. [PMID: 27893744 PMCID: PMC5125564 DOI: 10.1371/journal.pone.0165475] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 10/12/2016] [Indexed: 12/18/2022] Open
Abstract
Background Irreversible electroporation (IRE) is a non-thermal cell ablation approach that induces selective damage to cell membranes only. The purpose of the current study was to evaluate and optimize its use for in-vivo myocardial decellularization. Methods Forty-two Sprague-Dawley rats were used to compare myocardial damage of seven different IRE protocols with anterior myocardial infarction damage. An in-vivo open thoracotomy model was used, with two-needle electrodes in the anterior ventricular wall. IRE protocols included different combinations of pulse lengths (70 vs. 100 μseconds), frequency (1, 2, 4 Hz), and number (10 vs. 20 pulses), as well as voltage intensity (50, 250 and 500 Volts). All animals underwent baseline echocardiographic evaluation. Degree of myocardial ablation was determined using repeated echocardiography measurements (days 7 and 28) as well as histologic and morphometric analysis at 28 days. Results All animals survived 28 days of follow-up. Compared with 50V and 250V, electroporation with 500V was associated with significantly increased myocardial scar and reduction in ejection fraction (67.4%±4% at baseline vs. 34.6%±20% at 28 days; p <0.01). Also, compared with pulse duration of 70 μsec, pulses of 100 μsec were associated with markedly reduced left ventricular function and markedly increased relative scar area ratio (28%±9% vs. 16%±3%, p = 0.02). Decreasing electroporation pulse frequency (1Hz vs. 2Hz, 2Hz vs. 4Hz) was associated with a significant increase in myocardial damage. Electroporation protocols with a greater number of pulses (20 vs. 10) correlated with more profound tissue damage (p<0.05). When compared with myocardial infarction damage, electroporation demonstrated a considerable likeness regarding the extent of the inflammatory process, but with relatively higher levels of extra-cellular preservation. Conclusions IRE has a graded effect on the myocardium. The extent of ablation can be controlled by changing pulse length, frequency and number, as well as by changing electric field intensity.
Collapse
|
11
|
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
|
12
|
Abstract
BACKGROUND The neonatal heart possesses the unique power to regenerate in response to resection of the left ventricular apex. We sought to determine whether the type of injury affects the mode of repair and regeneration. METHODS AND RESULTS Apical resection, or permanent left anterior descending coronary artery ligation, was induced in neonatal 1-day-old mice. Echocardiography was used to confirm and monitor cardiac injury and remodeling. Histological and immunohistochemical examinations of the resected and infarcted neonatal hearts revealed inflammation and granulation tissue formation. From day 3, early regeneration was identified at the injured sites and was characterized by dedifferentiation and proliferation of cardiomyocytes around the injured areas. The young cardiomyocytes infiltrated the granulation tissue and replaced it with a new myocardium. The ability of neonatal cardiomyocytes to proliferate was confirmed in neonatal heart organ cultures. Notably, myocardial infarction in neonatal mouse produced incomplete regeneration with a residual small infarct and, sometimes, aneurysm at 28 days after myocardial infarction. We then repeated the same experiments in the adult heart. Remarkably, myocardial infarction in the adult mouse heart produced a typical thin scar, whereas apical resection revealed an abnormal, epicardial, hemorrhagic scar 21 days after injury. CONCLUSIONS Our findings suggest that the type of injury, resection, or infarction affects the mode of repair in both neonatal and adult mouse hearts. Identifying the differences in the mechanisms or repair of these 2 types of injuries could help to develop novel regenerative therapies relevant to human patients.
Collapse
|
13
|
The transient receptor potential vanilloid 2 cation channel is abundant in macrophages accumulating at the peri-infarct zone and may enhance their migration capacity towards injured cardiomyocytes following myocardial infarction. PLoS One 2014; 9:e105055. [PMID: 25136832 PMCID: PMC4138115 DOI: 10.1371/journal.pone.0105055] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Accepted: 07/18/2014] [Indexed: 11/19/2022] Open
Abstract
Purpose A novel family of transient receptor potential (TRP) channels, that may hold a role in calcium homeostasis, has recently been described. By employing a GeneChip array analysis we have demonstrated a clear and specific upregulation of the TRP vanilloid 2 (TRPV2) mRNA in the left ventricles (LV) 3–5 days post-acute myocardial infarction (MI) compared to sham-operated controls, both in rats and in mice. We sought to characterize the cardiac cellular subpopulations in which TRPV2 is overexpressed upon acute MI. Methods Lewis rats underwent an acute MI by ligation of the left anterior descending artery or chest opening only (sham). The animals were terminated at various time points and an immunohistochemical (IHC) and immunofloerescent (IFC) staining of the LV sections as well as a flow cytometry analysis of LV-derived cells were carried out, using anti-TRPV2 and anti-monocyte/macrophage antibodies. Rat alveolar macrophage cells, NR8383, transiently transfected with TRPV2 siRNA were allowed to migrate towards hypoxic conditioned media of the rat cardiac myoblast line H9C2 using a trans-well migration assay. The macrophage cells migrating to the bottom side of the inserts were counted. Results The IHC and IFC staining as well as the flow cytometry data demonstrated a substantial expression of TRPV2 in infiltrating macrophages in the peri-infarct region 3–5 days post-acute MI. The in vitro migration assay data demonstrated that following inhibition of the TRPV2 channel, the number of migrating macrophages towards conditioned medium of hypoxic cardiomyocytes was significantly reduced. Conclusions TRPV2 is highly expressed on the peri-infarct infiltrating macrophages and may play an important role in post-MI phagocytosis. Better characterization of this channel may pave the way for identifying a new target for modulating the dramatic post-MI immune reactions.
Collapse
|
14
|
|
15
|
The effects of peptide-based modification of alginate on left ventricular remodeling and function after myocardial infarction. Biomaterials 2008; 30:189-95. [PMID: 18849071 DOI: 10.1016/j.biomaterials.2008.09.018] [Citation(s) in RCA: 115] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2008] [Accepted: 09/08/2008] [Indexed: 11/29/2022]
Abstract
Adverse cardiac remodeling and dysfunction after myocardial infarction (MI) is associated with (BioLineRx, BL-1040 myocardial implant) excessive damage to the extracellular matrix. Biomaterials, such as the in situ-forming alginate hydrogel, provide temporary support and attenuate these processes. Here, we tested the effects of decorating alginate biomaterial with cell adhesion peptides, containing the sequences RGD and YIGSR, or a non-specific peptide (RGE), in terms of therapeutic outcome soon after MI. The biomaterial (i.e., both unmodified and peptide-modified alginate) solutions retained the ability to flow after cross-linking with calcium ions, and could be injected into 7-day infarcts, where they underwent phase transition into hydrogels. Serial echocardiography studies performed before and 60 days after treatment showed that alginate modification with the peptides reduced the therapeutical effects of the hydrogel, as revealed by the extent of scar thickness, left ventricle dilatation and function. Histology and immunohistochemistry revealed no significant differences in blood vessel density, scar thickness, myofibroblast or macrophage infiltration or cell proliferation between the experimental groups BioLineRx BL-1040 myocardial implant. Our studies thus reveal that the chemical and physical traits of the biomaterial can affect its therapeutical efficacy in attenuating left ventricle remodeling and function, post-MI.
Collapse
|
16
|
Abstract
BACKGROUND Cell labeling with superparamagnetic iron oxide (SPIO) nanoparticles enables noninvasive MRI and tracking of transplanted stem cells. We sought to determine whether mesenchymal stem cell (MSC) outcome is affected by SPIO labeling in a rat model of myocardial infarction. METHODS AND RESULTS Rat MSCs were labeled with SPIO (ferumoxides; Endorem; Guerbet, Villepinte, France). By trypan-blue exclusion assay, almost 100% of the cells remained viable after labeling. Seven days after MI, rats were randomized to injections of 2x10(6) SPIO-labeled MSCs, 2x10(6) unlabeled MSCs, or saline. Labeled cells were visualized in the infarcted myocardium as large black spots by serial MRI studies throughout the 4-week follow-up. The presence of labeled cells was confirmed by iron staining and real-time polymerase chain reaction on postmortem specimens. At 4 weeks after transplantation, the site of cell injection was infiltrated by inflammatory cells. Costaining for iron and ED1 (resident macrophage marker) showed that the iron-positive cells were cardiac macrophages. By real-time polymerase chain reaction, the Y-chromosome-specific SRY DNA of MSCs from male donors was not detected in infarcted hearts of female recipients. Serial echocardiography studies at baseline and 4 weeks after cell transplantation showed that both unlabeled and labeled MSCs attenuated progressive left ventricular dilatation and dysfunction compared with controls. CONCLUSIONS At 4 weeks after transplantation of SPIO-labeled MSCs, the transplanted cells are not present in the scar and the enhanced MRI signals arise from cardiac macrophages that engulfed the SPIO nanoparticles. However, both labeled and unlabeled cells attenuate left ventricular dilatation and dysfunction after myocardial infarction.
Collapse
|
17
|
Novel injectable alginate scaffold attenuates progressive infarct expansion and preserves left ventricular systolic and diastolic function late after myocardial infarction. J Mol Cell Cardiol 2006. [DOI: 10.1016/j.yjmcc.2006.03.230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
18
|
Novel injectable alginate scaffold attenuates progressive infarct expansion and preserves left ventricular systolic and diastolic functions late after myocardial infarction. CARDIOVASCULAR REVASCULARIZATION MEDICINE 2006. [DOI: 10.1016/j.carrev.2006.03.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
19
|
|
20
|
Sobre las recaídas, la mentira y la falta de voluntad de los adictos. Adicciones 2003. [DOI: 10.20882/adicciones.442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
21
|
Abstract
Ozonized sunflower oil, Oleozon, has a remarkable gerrmicidal action. In the present study, the efficacy of Oleozon in the treatment of tinea pedis was demonstrated in a controlled randomized phase III assay, comparing topical Oleozon with ketoconazole cream 2% (Nizoral) in 200 patients (100 in each group). The treatment administered was twice per day for a period of 6 weeks. The efficacy was evaluated clinically (disappearance of all lesions, with or without negative mycological results) and mycologically (negative culture results). A complete clinical and mycological cure was obtained in 75 and 81% for Oleozon and ketoconazole, respectively, with no significant differences between both groups. No side-effects or bacterial super-infections were observed. Patients were evaluated 6 months after the end of the treatment and no recurrence was observed in the Oleozon group. Oleozon can be an effective alternative low-cost antimycotic drug.
Collapse
|
22
|
Abstract
OBJECTIVE To report the clinicopathologic findings in patients with Grover's disease. MATERIAL AND METHODS We reviewed the medical records and biopsy specimens from 72 patients with transient acantholytic dermatosis (Grover's disease) examined at Mayo Clinic Rochester. Hematoxylin-eosin-stained biopsy specimens (from all patients) were assessed. Immunohistochemistry stains BRST-2, CAM 5.2, and CD44 were used to stain eight specimens. Direct immunofluorescence reports were reviewed. Selected specimens were stained by indirect immunofluorescence to detect major basic protein. RESULTS Of the 72 patients, 63 (88%) were men, and the mean age was 48 years (range, 31 to 85). Lesions were distributed mainly on the trunk (in 71 patients) and proximal extremities (in 25). Heat and sweating frequently were exacerbating factors. Fifteen patients (21%) were bedbound. Concurrent nondermatologic malignant disease was present in 18 patients (25%). Two patients (3%) had acquired immunodeficiency syndrome. Follow-up in 28 patients (mean, 38 months; range, 3 months to 7 years) revealed that the disease had recurred in 13, persisted in 3, and resolved in 12. Review of the biopsy specimens showed that acantholysis was pemphigus vulgaris-like in 40 patients (56%), Darier's disease-like in 16 (22%), spongiotic in 12 (17%), pemphigus foliaceus-like in 2 (3%), and Hailey-Hailey disease-like in 2 (3%). A perivascular lymphocytic infiltrate of varied intensity in 64 specimens (89%) was associated with eosinophils in 16 (22%). In nine biopsy specimens with dermal eosinophilia stained for major basic protein, varied dermal cellular and extracellular deposition of major basic protein was present. Results of direct immunofluorescence studies, performed in 17 cases, were negative or nonspecific. CD44 stained acantholytic areas in addition to sweat glands in two of eight specimens (25%). CONCLUSION Further studies of the pathogenesis of Grover's disease are needed. The predisposing conditions, site of involvement, and relapsing nature of this disorder may implicate acrosyringeal dysfunction as the cause.
Collapse
|
23
|
Positive patch tests to nigrosine. Contact Dermatitis 1998; 38:175-6. [PMID: 9536419 DOI: 10.1111/j.1600-0536.1998.tb05694.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
24
|
|
25
|
|
26
|
|
27
|
Abstract
Generalized hypertrichosis is a common side-effect of oral minoxidil treatment for hypertension. However, hypertrichosis is uncommon after treatment with topical minoxidil for alopecia, and normally only occurs in areas close to the site of application. A 16-year-old girl is presented who developed generalized hypertrichosis 3 months after applying topical minoxidil for treatment of diffuse alopecia in doses greater than that prescribed. Four months after discontinuing treatment, the abnormal hair gradually diminished and disappeared.
Collapse
|
28
|
|
29
|
|
30
|
Bazex's syndrome (acrokeratosis paraneoplastica)--first case report of association with a bladder carcinoma. Clin Exp Dermatol 1993; 18:445-8. [PMID: 8252768 DOI: 10.1111/j.1365-2230.1993.tb02247.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Bazex's acrokeratosis paraneoplastica is a clinically well-defined entity consisting of a distal erythemato-squamous eruption and nail dystrophy. It is always associated with neoplasia, mainly squamous carcinomas of the upper digestive and respiratory tracts; therefore, Bazek's acrokeratosis is considered to be a specific marker of internal malignancy. Two new cases of this syndrome are reported. The first was in a 41-year-old man with a squamous cell carcinoma of the oesophagus, the second in a 73-year-old man who presented with a transitional cell bladder carcinoma, an association not previously reported.
Collapse
|
31
|
|
32
|
Abstract
Pseudocyst of the ear is a rare entity with controversial pathogenesis. Usually it is presented as a solitary, unilateral, fluctuant and non-inflammatory tumour of the ear with overlying normal skin. It occurs most often in young adult males. Incission reveals a serous liquid, with the consistency of olive oil, contained in the cyst-like lesion. Histopathology shows an intracartilaginous cavity with signs of degeneration and necrosis of the limiting cartilage. We present three new cases of this entity. Continuous minor trauma appears to be the causative factor in one of the patients, who also presented bilateral lesions.
Collapse
|
33
|
Abstract
Benign cephalic histiocytosis is a rare, benign, self-healing form of non-X histiocytosis. A case in a 3-month-old girl is reported. The papular eruption involved her face, neck, shoulders and upper trunk. Light and electron microscopic findings and clinical evolution confirmed the diagnosis. The differential diagnosis with the micronodular form of juvenile xanthogranuloma is discussed.
Collapse
|
34
|
Abstract
Focal dermal hypoplasia (Goltz syndrome) is a rare congenital syndrome with suspected X-linked transmission that is characterized by a wide range of mesoectodermal defects. We describe a 39-year-old woman who had a peculiar phenotype and asymmetry of the body. Examination revealed atrophic erythematous and hyperpigmented linear streaks following Blaschko's lines, some of which were in a reticular or cribriform arrangement. Yellow, soft nodules caused by fat herniation were visible mainly in skin folds. The patient had multiple bone anomalies, including longitudinal striation of long bones (osteopathia striata). She had several ocular, dental, and kidney defects. Histopathologic examination showed a markedly thinned dermis that was replaced by adipose tissue.
Collapse
|
35
|
|
36
|
|
37
|
Successful treatment of musk ketone-induced chronic actinic dermatitis with cyclosporine and PUVA. J Am Acad Dermatol 1992; 27:838-42. [PMID: 1469140 DOI: 10.1016/0190-9622(92)70261-d] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We describe a patient with chronic actinic dermatitis whose photopatch tests revealed reactions to musk ketone and musk ambrette, both of which were found in his aftershave lotion. Minimal erythema doses of UVA and UVB were decreased. After initial unsuccessful treatment with PUVA therapy the patient was successfully treated with a combination of cyclosporine and PUVA.
Collapse
|
38
|
Enoxacin-induced photosensitivity: study of two cases. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 1992; 9:86-8. [PMID: 1489723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Enoxacin is a second-generation quinolone derivative recently introduced in Spain. Its activity comes through the inhibition of bacterial DNA-gyrase and it has a good antibacterial capacity against a broad spectrum of gram-positive and gram-negative bacteria. It is presumed to be less toxic than the rest of the quinolones and its use is increasing, specially to treat infections of the urogenital tract. Cases of photosensitivity to enoxacin have been very rarely reported. We describe 2 patients with photosensitivity reactions due to this drug.
Collapse
|
39
|
|