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Clinical Performance of Lateral Flow Assay for Cryptosporidium spp. Diagnosis. Biomedicines 2023; 11:2140. [PMID: 37626637 PMCID: PMC10452195 DOI: 10.3390/biomedicines11082140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/23/2023] [Accepted: 07/27/2023] [Indexed: 08/27/2023] Open
Abstract
Cryptosporidium spp. is an apicomplexan protozoan parasite associated with gastroenteritis in humans. In 2018, Spain showed 1511 confirmed cases, with a growing trend since 2014. Despite this fact, Cryptosporidium spp. is not usually routinely examined when a parasitological study is ordered, although accurate diagnosis is fundamental to prevent the spread of the illness. The main objectives of the present work is to demonstrate the circulation and to study the epidemiology of cryptosporidiosis in patients who were being tested for the presence of Cryptosporidium spp. parasites in the faeces in the Metropolitan North Area of Barcelona, Maresme, and Vallés Occidental using a two-step algorithm. The stool samples were analysed using the Cryptosporidium/Giardia spp. immunochromatographic test; the positive samples were visualised under a microscope using auramine staining. The proportion of Cryptosporidium spp. cases was around 2% in the studied patients, with a pronounced seasonal incidence peak in late summer-early autumn. In our cohort, weight loss was the main symptom related to confirmed cases. The mean age of confirmed patients was 19 years old, and they were younger than the unconfirmed group. Cryptosporidium spp. is one of the parasites that currently circulate in many areas in Europe. Prevalence must be taken into account for active searching.
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Face-to-Face and Tele-Consults: A Study of the Effects on Diagnostic Activity and Patient Demand in Primary Healthcare. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:14119. [PMID: 36360997 PMCID: PMC9656153 DOI: 10.3390/ijerph192114119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 09/30/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
Primary healthcare services have changed from face-to-face to tele-consults during the two COVID-19 years. We examined trends before and during the COVID-19 pandemic years based on groups of professionals, patient ages, and the associations with the diagnostic registry. We analyzed proportions for both periods, and ratios of the type of consults in 2017-2019 and 2020-2021 were calculated. The COVID-19 period was examined using monthly linear time trends. The results showed that consults in 2020-2021 increased by 24%. General practitioners saw significant falls in face-to-face consults compared with 2017-2019 (ratio 0.44; 95% CI: 0.44 to 0.45), but the increase was not proportional across age groups; patients aged 15-44 years had 45.8% more tele-consults, and those aged >74 years had 18.2% more. Trends in linear regression models of face-to-face consults with general practitioners and monthly diagnostic activity were positive, while the tele-consult trend was inverse to the trend of the diagnostic registry and face-to-face consults. Tele-consults did not resolve the increased demand for primary healthcare services caused by COVID-19. General practitioners, nurses and primary healthcare professionals require better-adapted tele-consult tools for an effective diagnostic registry to maintain equity of access and answer older patients' needs and priorities in primary healthcare.
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Effect of sacubitril/valsartan and empagliflozin on systemic inflammation and scar remodeling in a swine model of myocardial infarction. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Angiotensin receptor neprilysin inhibitor (ARNI) and sodium glucose cotransporter 2 inhibitors (SGLT2i) lead to reduced cardiovascular death and hospitalization rates for heart failure, but mechanisms of action remain unclear.
Purpose
To evaluate the effect of ARNI and SLGT2i on cardiac function, systemic inflammation and scar remodeling in a porcine model of acute myocardial infarction (MI).
Methods
Thirty-three pigs (18 female, 15 male) with non-revascularized MI were randomized to receive treatment with beta-blocker (BB) only (BB group, n=8), empagliflozin + BB (SGLT2i group, n=8), sacubitril/valsartan + BB (ARNI group, n=9) or empagliflozin + sacubitril/valsartan + BB (SGLT2i + ARNI group, n=8) for 30 days post-MI. Cardiac function parameters were studied at 2- and 30-days post-MI by cardiac magnetic resonance imaging. The systemic immune response was analysed at baseline, 2-, 15- and 30-days post-MI to estimate 1) the absolute number of neutrophils and lymphocytes by FSC-A/SSC-A, 2) the circulating monocytes (CD172a+) and their phenotype according to CD73+, and CCR2+ expression. Animals were euthanized at 30 days, interstitial collagen and vascular density of the scar were quantified.
Results
Left ventricular ejection fraction (LVEF) and stoke volume (LVSV) improved in SGLT2i + ARNI group (P=0.02, P=0.002, respectively, 2 vs 30 days post-MI). Right ventricular ejection fraction (RVEF) and stroke volume (RVSV) improved in ARNI treatment arm (P=0.03; P=0.02, respectively, 2 vs 30 days post-MI). Significant increase in LV mass was only observed in BB group (P=0.02; 2 vs 30 days post-MI). SGLT2i and ARNI treatment prevented the acute increase in circulating leukocytes 2 days post-MI (P=0.0095; P=0.0091, respectively). Moreover, SGLT2i reduced the CCR2+ activated monocytes count at 15 days post-infarction (P=0.01). In contrast, the combined treatment increased the number of circulating monocytes (CD172a+) at 30 days (P=0.008). Reduced collagen I (P=0.04), and Col I/Col III ratio (P=0.02) was observed in ARNI group, and higher collagen III content (P=0.02) in SGLT2i group. Vascular density was significantly increased in SGLT2i + ARNI group (P=0.03).
Conclusions
SGLT2i modulates systemic inflammatory state. ARNI reduces myocardial fibrosis and improves right ventricular function. Combined treatment improves vascular density and left cardiac function in a post-MI porcine model.
Funding Acknowledgement
Type of funding sources: Other. Main funding source(s): Boehringer Ingelheim Spain, S.A, and Instituto de Salud Carlos III, CIBER Cardiovascular
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Immunomodulatory effect of first-in-human PeriCord cardiac bioimplant: preliminary data of the PERISCOPE clinical trial. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
The PERISCOPE is a first-in-human, phase I, double blind, one centre clinical trial to test the safety of the PeriCord, an advanced therapy medicinal product (PEI18–140), for the treatment of patients with infarcted myocardial tissue. The PeriCord is a GMP-complying allogeneic engineered tissue graft consisting on a decellularised pericardial matrix colonised with umbilical cord Wharton's jelly mesenchymal stromal cells. The PeriCord implantation has shown to promote damaged tissue revascularisation, reduce infarct size, adverse remodelling and fibrosis, and ultimately improve cardiac function preclinically.
Purpose
To assess the safety and monitor the monocyte and cytokine response after PeriCord implantation in patients with infarcted myocardial tissue.
Methods
The PERISCOPE clinical trial has been approved by AEMPS and the Local Ethics Committee of our institution (Eudra-CT 2018–001964–49).
Twelve patients with transmural myocardial infarction (>50% by MRI) who were candidates for surgical revascularisation were included: two roll-in and 10 randomised into a Control group (n=5; CABG) or Treatment group (n=5; n=7 in total; CABG and PeriCord implantation over the transmural myocardial scar). In conjunction with clinical follow-up, whole blood was sampled at baseline and 3-, 6-, and 9-days post-surgery for monocyte populations analysis by flow cytometry and plasma cytokine and monocyte chemoattractant chemokine levels by multiplex ELISA.
Results
The target patient enrolment has been met and no adverse effects related to PeriCord implantation were observed so far.
Recruitment of CCR2+ activated monocytes in peripheral blood peaked on day 3 post-surgery in both groups (increase in the %CCR2+ monocytes of 6.1±5.7% in Control, p=0.38; and 6.5±1.8% in PeriCord Treated patients, p=0.0004), concomitant with a surge in the monocyte chemoattractant CCL2 plasma levels. At the same time, there was a decrease in the number of “non-classical” monocytes regardless of treatment (decrease in CD14-/CD16+ monocytes of 16.7±11.1% in Control, p<0.01; and 24.0±15.0% in PeriCord Treated patients, p<0.001) and a marked reduction in CX3CR1 expression in monocytes of PeriCord treated patients (decrease of 53.2±20.6% in mean fluorescence intensity at day 3, p<0.01), while plasma CX3CL1 levels were undetectable. Both populations recovered on day 9 only in treated patients (p<0.05).
Conclusions
Implantation of the PeriCord in myocardial infarction patients did not promote adverse reactions and modulated circulating monocyte subsets that have been associated with post-infarction myocardial tissue healing (CCR2 and CX3CR1). These results will be analysed for correlation with therapeutic benefits by the end of patient follow-up.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Instituto Carlos III, Generalitat de Catalunya
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Validity and reliability of 1-h automated office blood pressure measurement for the diagnosis of hypertension. J Hypertens 2022; 40:453-461. [PMID: 34654792 DOI: 10.1097/hjh.0000000000003029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIMS The objective of this study was to examine the validity of 1 h automated office blood pressure measurement for the diagnosis of hypertension. METHODS We included patients requiring a hypertension diagnostic test. Participants underwent ambulatory blood pressure monitoring, 1 h automated office blood pressure measurement, office blood pressure measurement and home blood pressure monitoring. The prevalence of hypertension and subtypes were calculated. Mean values of ambulatory blood pressure monitoring were compared with 1 h automated office blood pressure measurement using the correlation coefficient and Bland-Altman graphs. The Kappa concordance index, sensitivity, specificity and diagnostic accuracy were calculated, and the area under the receiver operating characteristic curve was used to establish the diagnostic threshold of the 1-h measurement. RESULTS Of 562 participants, 438 (87.6%) completed the four diagnostic methods. The 1-h method had a sensitivity of 76.6 [95% confidence interval (95% CI): 71.1-81.5], a specificity of 64.8% (95% CI: 57-72.1) and the best diagnostic accuracy (72.1%, 95% CI: 67.7-76.3) compared with the office and home measurements. Moderate-high correlations were observed between DBP (r = 0.73) and SBP (r = 0.58) readings. The 1-h method classified more patients as normotensive (24.4%) and fewer patients with white-coat hypertension (13.3%). A diagnostic threshold of at least 133/83 mmHg for the 1-h method could improve diagnostic accuracy by 2.3%. CONCLUSION One-hour automated blood pressure measurement is a valid, reliable method for the diagnosis of hypertension in undiagnosed patients. The diagnostic accuracy permits detection of white-coat and masked hypertension. To diagnose hypertension, the 1-h method or conventional home blood pressure monitoring should be used rather than office measurements. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03147573.
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Extracellular vesicles from mesenchymal stromal cells combined with tissue engineering improve cardiac function, reduce fibrosis and modulate immune response in acute myocardial infarcted pigs. Cytotherapy 2021. [DOI: 10.1016/s1465324921002875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Effectiveness of a new one-hour blood pressure monitoring method to diagnose hypertension: a diagnostic accuracy clinical trial protocol. BMJ Open 2019; 9:e029268. [PMID: 31133597 PMCID: PMC6538020 DOI: 10.1136/bmjopen-2019-029268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
INTRODUCTION 24-hour ambulatory blood pressure monitoring (ABPM) is the gold standard diagnostic method for hypertension, but has some shortcomings in clinical practice while clinical settings often lack sufficient devices to accommodate all patients with suspected hypertension. Home blood pressure monitoring (HBPM) and office blood pressure monitoring (OBPM) also have shortcomings, such as the white coat effect or a lack of accuracy. This study aims to study the validity of a new method of diagnosing hypertension consisting of monitoring blood pressure (BP) for 1 hour and comparing it with OBPM and HBPM and examining the sensitivity and specificity of this method compared with 24-hour ABPM. The patient experience will be examined in each method. METHODS AND ANALYSIS A minimum sample of 214 patients requiring a diagnostic test for hypertension from three urban primary healthcare centres will be included. Participants will undergo 24-hour ABPM, 1-hour BP measurement (1-BPM), OBPM for three consecutive weeks and HBPM. Patients will follow a random sequence to first receive 24-hour ABPM or 1-hour ABPM. Daytime 24-hour ABPM records will be compared with the other monitoring methods using the correlation coefficient and Bland Altman plots. The kappa concordance index and the sensitivity and specificity of the methods will be calculated. The patient's experience will be studied, with selected indicators of efficiency and satisfaction calculated using parametric tests. ETHICS AND DISSEMINATION The protocol has been authorised by the research ethics committee of the Hospital Clinic of Barcelona (Ref. HCB/2014/0615): protocol details and amendments will be recorded and reported to ClinicalTrials.com. The results will be disseminated in peer-reviewed literature, and to policy makers and healthcare partners. TRIAL REGISTRATION NCT03147573; Pre-results.
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Toward the use of Wharton's Jelly-derived multipotent Mesenchymal Stromal Cells in bone Tissue Engineering strategies. Cytotherapy 2018. [DOI: 10.1016/j.jcyt.2018.02.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Variable endothelial cell function restoration after initiation of two antiretroviral regimens in HIV-infected individuals. J Antimicrob Chemother 2018; 72:2049-2054. [PMID: 28369542 DOI: 10.1093/jac/dkx074] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 02/13/2017] [Indexed: 11/13/2022] Open
Abstract
Background The effect of ART on endothelial cell function is incompletely characterized. Methods We performed a 24 week prospective, case-control and comparative pilot study of ART-naive HIV-infected patients who started a darunavir- or rilpivirine-based regimen, matched with non-HIV-infected volunteers, to compare changes at week 24 from baseline in levels of circulating endothelial cells (CECs), endothelial progenitor cells (EPCs) and circulating angiogenic cells, as well as changes in immune-activation markers. Results The study population comprised 24 HIV-infected patients and 24 non-infected volunteers. Both HIV groups completely suppressed viraemia. HIV-infected patients had higher levels of activation markers than the control group in CD8 T cells at baseline; these decreased after 24 weeks of treatment, but without reaching the levels of the control group. No statistical differences in immune activation were seen between the darunavir and rilpivirine groups. Levels of CECs were higher and levels of EPCs and circulating angiogenic cells were lower in HIV-infected patients than in the control group, although these parameters were similar between the darunavir group and the control group, but not the rilpivirine group, at week 24. An unfavourable association was observed between rilpivirine, age and increased number of CECs. Conclusions Restoration of circulating levels of EPCs and CECs in darunavir-treated patients was greater than in those treated with rilpivirine, suggesting ongoing endothelial repair mechanisms.
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P2562Comparison between two different natural decellularized scaffolds after myocardial infarction in swine. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2562] [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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P4464An acellular myocardial scaffold optimal for cardiac recovery: proteomic, structural and mechanical characterization. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4464] [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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Young Investigator Award Session - Heart40Targeting the miRNA-106b-25 cluster as a potential regenerative therapeutic approach for myocardial injury41An allogeneic bioengineered myocardial graft limits infarct size and improves cardiac function: pre-clinical study in the porcine myocardial infarction model42Phosphoinositide 3-kinase gamma inhibition protects against anthracycline-induced cardiomyopathy by boosting cardiac autophagy43Functional screening of microRNAs identifies miR-22 as a regulator of cardiac autophagy and aging44Functional defects and molecular mechanisms of left ventricular non-compaction in nkx2.5 mutant mice45PITX2 modulates atrial membrane potential, potentiating the antiarrhythmic effects of sodium channel blockers. Cardiovasc Res 2016. [DOI: 10.1093/cvr/cvw139] [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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Poster session 1Cell growth, differentiation and stem cells - Heart72Understanding the metabolism of cardiac progenitor cells: a first step towards controlling their proliferation and differentiation?73Expression of pw1/peg3 identifies a new cardiac adult stem cell population involved in post-myocardial infarction remodeling74Long-term stimulation of iPS-derived cardiomyocytes using optogenetic techniques to promote phenotypic changes in E-C coupling75Benefits of electrical stimulation on differentiation and maturation of cardiomyocytes from human induced pluripotent stem cells76Constitutive beta-adrenoceptor-mediated cAMP production controls spontaneous automaticity of human induced pluripotent stem cell-derived cardiomyocytes77Formation and stability of T-tubules in cardiomyocytes78Identification of miRNAs promoting human cardiomyocyte proliferation by regulating Hippo pathway79A direct comparison of foetal to adult epicardial cell activation reveals distinct differences relevant for the post-injury response80Role of neuropilins in zebrafish heart regeneration81Highly efficient immunomagnetic purification of cardiomyocytes derived from human pluripotent stem cells82Cardiac progenitor cells posses a molecular circadian clock and display large 24-hour oscillations in proliferation and stress tolerance83Influence of sirolimus and everolimus on bone marrow-derived mesenchymal stem cell biology84Endoglin is important for epicardial behaviour following cardiac injuryCell death and apoptosis - Heart87Ultrastructural alterations reflecting Ca2+ handling and cell-to-cell coupling disorders precede occurrence of severe arrhythmias in intact animal heart88Urocortin-1 promotes cardioprotection through ERK1/2 and EPAC pathways: role in apoptosis and necrosis89Expression p38 MAPK and Cas-3 in myocardium LV of rats with experimental heart failure at melatonin and enalapril introductionTranscriptional control and RNA species - Heart92Accumulation of beta-amyloid 1-40 in HF patients: the role of lncRNA BACE1-AS93Role of miR-182 in zebrafish and mouse models of Holt-Oram syndrome94Mir-27 distinctly regulates muscle-enriched transcription factors and growth factors in cardiac and skeletal muscle cells95AF risk factors impair PITX2 expression leading to Wnt-microRNA-ion channel remodelingCytokines and cellular inflammation - Heart98Post-infarct survival depends on the interplay of monocytes, neutrophils and interferon gamma in a mouse model of myocardial Infarction99Inflammatory cd11b/c cells play a protective role in compensated cardiac hypertrophy by promoting an orai3-related pro-survival signal100Anti-inflammatory effects of endothelin receptor blockade in the atrial tissue of spontaneously hypertensive rats101Mesenchymal stromal cells reduce NLRP3 inflammasome activity in Coxsackievirus B3-induced myocarditis102Mesenchymal stromal cells modulate monocytes trafficking in Coxsackievirus B3-induced myocarditis103The impact of regulatory T lymphocytes on long-term mortality in patients with chronic heart failure104Temporal dynamics of dendritic cells after ST-elevation myocardial infarction relate with improvement of myocardial functionGrowth factors and neurohormones - Heart107Preconditioning of hypertrophied heart: miR-1 and IGF-1 crosstalk108Modulation of catecholamine secretion from human adrenal chromaffin cells by manipulation of G protein-coupled receptor kinase-2 activity109Evaluation of cyclic adenosin-3,5- monophosphate and neurohormones in patients with chronic heart failureNitric oxide and reactive oxygen species - Heart112Hydrogen sulfide donor inhibits oxidative and nitrosative stress, cardiohemodynamics disturbances and restores cNOS coupling in old rats113Role and mechanisms of action of aldehydes produced by monoamine oxidase A in cardiomyocyte death and heart failure114Exercise training has contrasting effects in myocardial infarction and pressure-overload due to different endothelial nitric oxide synthase regulation115S-Nitroso Human Serum Albumin dose-dependently leads to vasodilation and alters reactive hyperaemia in coronary arteries of an isolated mouse heart model116Modulating endothelial nitric oxide synthase with folic acid attenuates doxorubicin-induced cardiomyopathy119Effects of long-term very high intensity exercise on aortic structure and function in an animal model120Electron paramagnetic resonance spectroscopy quantification of nitrosylated hemoglobin (HbNO) as an index of vascular nitric oxide bioavailability in vivo121Deletion of repressor activator protein 1 impairs acetylcholine-induced relaxation due to production of reactive oxygen speciesExtracellular matrix and fibrosis - Heart124MicroRNA-19b is associated with myocardial collagen cross-linking in patients with severe aortic stenosis. Potential usefulness as a circulating biomarker125A new ex vivo model to study cardiac fibrosis126Heterogeneity of fibrosis and fibroblast differentiation in the left ventricle after myocardial infarction127Effect of carbohydrate metabolism degree compensation to the level of galectin-3 changes in hypertensive patients with chronic heart failure and type 2 diabetes mellitus128Statin paradox in association with calcification of bicuspid aortic valve interstitial cells129Cardiac function remains impaired despite reversible cardiac fibrosis after healed experimental viral myocarditisIon channels, ion exchangers and cellular electrophysiology - Heart132Identifying a novel role for PMCA1 (Atp2b1) in heart rhythm instability133Mutations of the caveolin-3 gene as a predisposing factor for cardiac arrhythmias134The human sinoatrial node action potential: time for a computational model135iPSC-derived cardiomyocytes as a model to dissect ion current alterations of genetic atrial fibrillation136Postextrasystolic potentiation in healthy and diseased hearts: effects of the site of origin and coupling interval of the preceding extrasystole137Absence of Nav1.8-based (late) sodium current in rabbit cardiomyocytes and human iPSC-CMs138hiPSC-derived cardiomyocytes from Brugada Syndrome patients without identified mutations do not exhibit cellular electrophysiological abnormalitiesMicrocirculation141Atherogenic indices, collagen type IV turnover and the development of microvascular complications- study in diabetics with arterial hypertension142Changes in the microvasculature and blood viscosity in women with rheumatoid arthritis, hypercholesterolemia and hypertensionAtherosclerosis145Shear stress regulates endothelial autophagy: consequences on endothelial senescence and atherogenesis146Obstructive sleep apnea causes aortic remodeling in a chronic murine model147Aortic perivascular adipose tissue displays an aged phenotype in early and late atherosclerosis in ApoE-/- mice148A systematic evaluation of the cellular innate immune response during the process of human atherosclerosis149Inhibition of Coagulation factor Xa increases plaque stability and attenuates the onset and progression of atherosclerotic plaque in apolipoprotein e-deficient mice150Regulatory CD4+ T cells from patients with atherosclerosis display pro-inflammatory skewing and enhanced suppression function151Hypoxia-inducible factor (HIF)-1alpha regulates macrophage energy metabolism by mediating miRNAs152Extracellular S100A4 is a key player of smooth muscle cell phenotypic transition: implications in atherosclerosis153Microparticles of healthy origins improve atherosclerosis-associated endothelial progenitor cell dysfunction via microRNA transfer154Arterial remodeling and metabolism impairment in early atherosclerosis155Role of pannexin1 in atherosclerotic plaque formationCalcium fluxes and excitation-contraction coupling158Amphiphysin II induces tubule formation in cardiac cells159Interleukin 1 beta regulation of connexin 43 in cardiac fibroblasts and the effects of adult cardiac myocyte:fibroblast co-culture on myocyte contraction160T-tubular electrical defects contribute to blunted beta-adrenergic response in heart failure161Beat-to-beat variability of intracellular Ca2+ dynamics of Purkinje cells in the infarct border zone of the mouse heart revealed by rapid-scanning confocal microscopy162The efficacy of late sodium current blockers in hypertrophic cardiomyopathy is dependent on genotype: a study on transgenic mouse models with different mutations163Synthesis of cADPR and NAADP by intracellular CD38 in heart: role in inotropic and arrhythmogenic effects of beta-adrenoceptor signalingContractile apparatus166Towards an engineered heart tissue model of HCM using hiPSC expressing the ACTC E99K mutation167Diastolic mechanical load delays structural and functional deterioration of ultrathin adult heart slices in culture168Structural investigation of the cardiac troponin complex by molecular dynamics169Exercise training restores myocardial and oxidative skeletal muscle function from myocardial infarction heart failure ratsOxygen sensing, ischaemia and reperfusion172A novel antibody specific to full-length stromal derived factor-1 alpha reveals that remote conditioning induces its cleavage by endothelial dipeptidyl peptidase 4173Attenuation of myocardial and vascular arginase activity by vagal nerve stimulation via a mechanism involving alpha-7 nicotinic receptor during cardiac ischemia and reperfusion174Novel nanoparticle-mediated medicine for myocardial ischemia-reperfusion injury simultaneously targeting mitochondrial injury and myocardial inflammation175Acetylcholine plays a key role in myocardial ischaemic preconditioning via recruitment of intrinsic cardiac ganglia176The role of nitric oxide and VEGFR-2 signaling in post ischemic revascularization and muscle recovery in aged hypercholesterolemic mice177Efficacy of ischemic preconditioning to protect the human myocardium: the role of clinical conditions and treatmentsCardiomyopathies and fibrosis180Plakophilin-2 haploinsufficiency leads to impaired canonical Wnt signaling in ARVC patient181Improved technique for customized, easier, safer and more reliable transverse aortic arch banding and debanding in mice as a model of pressure overload hypertrophy182Late sodium current inhibitors for the treatment of inducible obstruction and diastolic dysfunction in hypertrophic cardiomyopathy: a study on human myocardium183Angiotensin II receptor antagonist fimasartan has protective role of left ventricular fibrosis and remodeling in the rat ischemic heart184Role of High-Mobility Group Box 1 (HMGB1) redox state on cardiac fibroblasts activities and heart function after myocardial infarction185Atrial remodeling in hypertrophic cardiomyopathy: insights from mouse models carrying different mutations in cTnT186Electrophysiological abnormalities in ventricular cardiomyocytes from a Maine Coon cat with hypertrophic cardiomyopathy: effects of ranolazine187ZBTB17 is a novel cardiomyopathy candidate gene and regulates autophagy in the heart188Inhibition of SRSF4 in cardiomyocytes induces left ventricular hypertrophy189Molecular characterization of a novel cardiomyopathy related desmin frame shift mutation190Autonomic characterisation of electro-mechanical remodeling in an in-vitro leporine model of heart failure191Modulation of Ca2+-regulatory function by three novel mutations in TNNI3 associated with severe infant restrictive cardiomyopathyAging194The aging impact on cardiac mesenchymal like stromal cells (S+P+)195Reversal of premature aging markers after bariatric surgery196Sex-associated differences in vascular remodeling during aging: role of renin-angiotensin system197Role of the receptor for advanced glycation end-products (RAGE) in age dependent left ventricle dysfunctionsGenetics and epigenetics200hsa-miR-21-5p as a key factor in aortic remodeling during aneurysm formation201Co-inheritance of mutations associated with arrhythmogenic and hypertrophic cardiomyopathy in two Italian families202Lamin a/c hot spot codon 190: form various amino acid substitutions to clinical effects203Treatment with aspirin and atorvastatin attenuate cardiac injury induced by rat chest irradiation: Implication of myocardial miR-1, miR-21, connexin-43 and PKCGenomics, proteomics, metabolomics, lipidomics and glycomics206Differential phosphorylation of desmin at serines 27 and 31 drives the accumulation of preamyloid oligomers in heart failure207Potential role of kinase Akt2 in the reduced recovery of type 2 diabetic hearts subjected to ischemia / reperfusion injury208A proteomics comparison of extracellular matrix remodelling in porcine coronary arteries upon stent implantationMetabolism, diabetes mellitus and obesity211Targeting grk2 as therapeutic strategy for cancer associated to diabetes212Effects of salbutamol on large arterial stiffness in patients with metabolic syndrome213Circulating microRNA-1 and microRNA-133a: potential biomarkers of myocardial steatosis in type 2 diabetes mellitus214Anti-inflammatory nutrigenomic effects of hydroxytyrosol in human adipocytes - protective mechanisms of mediterranean diets in obesity-related inflammation215Alterations in the metal content of different cardiac regions within a rat model of diabetic cardiomyopathyTissue engineering218A novel conductive patch for application in cardiac tissue engineering219Establishment of a simplified and improved workflow from neonatal heart dissociation to cardiomyocyte purification and characterization220Effects of flexible substrate on cardiomyocytes cell culture221Mechanical stretching on cardiac adipose progenitors upregulates sarcomere-related genes. Cardiovasc Res 2016. [DOI: 10.1093/cvr/cvw135] [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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Impact of lrp1-ppyk2 axis inhibition in vascular remodeling and inflammation associated with hypoxia. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.515] [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: 11/29/2022]
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P510Obtention and characterization of acellular myocardial scaffold for cardiac tissue engineering. Cardiovasc Res 2014. [DOI: 10.1093/cvr/cvu091.182] [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: 11/14/2022] Open
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P779Constructing a new myocardial bioprosthesis for cardiac repair. Cardiovasc Res 2014. [DOI: 10.1093/cvr/cvu098.197] [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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Electrical stimulation of cardiac adipose tissue-derived progenitor cells modulates cell phenotype and genetic machinery. J Tissue Eng Regen Med 2013; 9:E76-83. [DOI: 10.1002/term.1710] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Revised: 11/20/2012] [Accepted: 12/20/2012] [Indexed: 12/25/2022]
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Cell Viability in a Cryopreserved Human Cancellous Allograft. Rev Esp Cir Ortop Traumatol (Engl Ed) 2008. [DOI: 10.1016/s1988-8856(08)70065-8] [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] Open
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Abstract
BACKGROUND Umbilical cord blood (UCB) has been widely used for hematopoietic stem cell transplantation. The UCB-derived stem cells (UCBSCs) have been proposed as an alternative to bone marrow (BM)-derived mesenchymal stem cells (MSCs) for cardiac cell-based therapy. Herein we studied whether UCBSCs spontaneously exhibit cardiac-specific markers in vitro. METHODS Human UCBSCs were isolated, expanded, and phenotyped by flow cytometry, quantitative RT-PCR, and immunofluorescence. Cell pluripotency and proliferation were also assessed by adipogenic and osteogenic media and in growth assays. RESULTS Among 25 analyzed UCB, 16% of cases afforded primary culture satisfactory generation of UCBSCs. Duplication time (Td) of cultures was 2.16 +/- 0.06 days. The cells were strongly positive for CD105 (18.5 +/- 0.14), CD44 (27 +/- 2.8), CD166 (13 +/- 9), CD29 (59 +/- 9.4), CD90 (60 +/- 11) and consistently negative for CD117 (1.2 +/- 0.1), CD106 (1.1 +/- 0), CD34 (1.2 +/- 0.2), CD14 (1 +/- 0), and CD45 (1 +/- 0), consistent with a mesenchymal lineage. Adipogenesis and osteogenesis of cells resulted in low accumulation of intracellular lipid droplets and high deposition of calcium. The UCBSCs showed gene transcripts for alpha-actinin, connexin (Cx)-43, SERCA-2, and stromal cell-derived factor (SDF)-1alpha. At the protein level, the cells abundantly expressed alpha-actinin, Cx-43, SERCA-2 and SDF-1alpha. In contrast, these cells did not express the cardiac transcription factors GATA-4, Tbx5, and Nkx2.5, nor the sarcomeric proteins beta-myosin heavy chain (beta-MyHC) or cardiac troponin I (cTnI). CONCLUSIONS Human UCBSCs may represent an alternative source of stem cells for myocardial-cell replacement. These cells can be highly expanded. They spontaneously express proteins of paramount importance for cardiovascular regeneration, such as Cx-43, SERCA-2, and SDF-1alpha.
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Identification of cardiomyogenic lineage markers in untreated human bone marrow-derived mesenchymal stem cells. Transplant Proc 2006; 37:4077-9. [PMID: 16386630 DOI: 10.1016/j.transproceed.2005.09.103] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Recent reports refute the classic paradigm by which human heart is unable to repair itself following disease or injury. Cardiac and noncardiac stem cells with cardiac regeneration potential have been documented. We studied whether untreated mesenchymal stem cells express markers of cardiomyogenic lineage in vitro. METHODS Mesenchymal stem cells were obtained from human iliac crest marrow aspirates. Cells were isolated and characterized using flow cytometry by surface expression of CD105, CD166, CD29, CD44, CD14, and CD34. To evaluate their cardiomyogenic potential, presence of cardiac proteins (cardiac troponin I, sarcomeric alpha-actinin, beta myosin heavy chain (beta-MyHC), connexin-43, and SERCA-2), and transcription factors (GATA-4) were assessed. RESULTS Mesenchymal stem cells expressed CD105 (4.25 +/- 0.35), CD166 (27.83 +/- 1.89), and CD29 (9.4 +/- 0.57) and were negative for CD34, CD14, and CD45. In absence of additional stimuli in the culture media, these cells expressed connexin-43, alpha-actinin, and GATA-4, and were negative for SERCA-2, cardiac troponin I, and beta-MyHC. CONCLUSIONS Human adult mesenchymal stem cells spontaneously exhibit markers of cardiac phenotype in vitro. In the appropiate myocardial environment, these cells may transdifferentiate into mature cardiomyocytes.
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Abstract
Alteration of cadherin-mediated cell-cell adhesion is frequently associated to tyrosine phosphorylation of p120- and beta-catenins. We have examined the role of this modification in these proteins in the control of beta-catenin/E-cadherin binding using in vitro assays with recombinant proteins. Recombinant pp60(c-src) efficiently phosphorylated both catenins in vitro, with stoichiometries of 1.5 and 2.0 mol of phosphate/mol of protein for beta-catenin and p120-catenin, respectively. pp60(c-src) phosphorylation had opposing effects on the affinities of beta-catenin and p120 for the cytosolic domain of E-cadherin; it decreased (in the case of beta-catenin) or increased (for p120) catenin/E-cadherin binding. However, a role for p120-catenin in the modulation of beta-catenin/E-cadherin binding was not observed, since addition of phosphorylated p120-catenin did not modify the affinity of phosphorylated (or unphosphorylated) beta-catenin for E-cadherin. The phosphorylated Tyr residues were identified as Tyr-86 and Tyr-654. Experiments using point mutants in these two residues indicated that, although Tyr-86 was a better substrate for pp60(c-src), only modification of Tyr-654 was relevant for the interaction with E-cadherin. Transient transfections of different mutants demonstrated that Tyr-654 is phosphorylated in conditions in which adherens junctions are disrupted and evidenced that binding of beta-catenin to E-cadherin in vivo is controlled by phosphorylation of beta-catenin Tyr-654.
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Independent regulation of adherens and tight junctions by tyrosine phosphorylation in Caco-2 cells. BIOCHIMICA ET BIOPHYSICA ACTA 1999; 1452:121-32. [PMID: 10559465 DOI: 10.1016/s0167-4889(99)00124-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
To study the role of tyrosine phosphorylation in the control of intercellular adhesion of intestinal cells, we have generated several clones of Caco-2 cells that express high levels of pp60v-src only after addition of butyrate. Expression of this oncogene in cells 5 days after confluence induced beta-catenin and p120-ctn tyrosine phosphorylation, redistribution of E-cadherin to the cytosol and disassembly of adherens junctions. However, tight junctions of Caco-2 cells at 5 days after confluence were not altered by expression of pp60v-src. Similar results were obtained when Caco-2 cells were incubated with phosphotyrosine phosphatase inhibitor orthovanadate. Although addition of this compound to postconfluent cells disrupt adherens junctions, tight junctions remain unaltered, as determined measuring monolayer permeability to mannitol or hyperphosphorylation of Triton-insoluble occludin. Modifications in tight junction permeability of Caco-2 were only observed at high concentrations of orthovanadate (1 mM). Interestingly, this tyrosine phosphorylation-refractory state was achieved after confluence since early postconfluent cells (day 2) showed a limited but significant response to low doses of orthovanadate. These results suggest that tight junctions of differentiated Caco-2 cells are uncoupled from adherens junctions and are insensitive to regulation by tyrosine phosphorylation.
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