Marieta P. Theodorakopoulou

Dr. Marieta P. Theodorakopoulou

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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15 April 2021 in ERJ Open Research
Verified
Journal Article
Open access
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MTMarieta P. Theodorakopoulou
Marieta P. Theodorakopoulou
MAMaria Eleni Alexandrou
Maria Eleni Alexandrou
DBDimitra Rafailia Bakaloudi
Dimitra Rafailia Bakaloudi
GPGeorgia Pitsiou
Georgia Pitsiou
ISIoannis Stanopoulos
Ioannis Stanopoulos
ABAfroditi Boutou
Afroditi Boutou
Background: Cardiovascular disease is a major cause of morbidity and mortality in COPD. Endothelial dysfunction is suggested to be one of the pathogenetic mechanisms involved. This is a systematic review and meta-analysis of studies using any available functional method to examine differences in endothelial function between patients with COPD and individuals without COPD (controls).Methods: Literature search involved PubMed and Scopus databases. Eligible studies included adult patients and evaluated endothelial damageviafunctional methods. The Newcastle–Ottawa scale was applied to evaluate the quality of retrieved studies. Subgroup analyses were performed to explore heterogeneity across the studies. Funnel plots were constructed to evaluate publication bias.Results: Of the 21 reports initially identified, 19 studies with a total of 968 participants were included in the final meta-analysis. A significantly impaired response in endothelium-dependent (weighted mean between-group difference (WMD) −2.59, 95% CI −3.75 to −1.42) and -independent vasodilation (WMD −3.13, 95% CI −5.18 to −1.09) was observed in patients with COPD compared to controls. When pooling all studies together, regardless of the technique used for assessment of vascular reactivity, pronounced endothelial dysfunction was observed in COPD compared to controls (standardised mean difference (SMD) −1.19, 95% CI −1.69 to −0.68). Subgroup analysis showed that the difference was larger when patients with COPD were compared with nonsmoking controls (SMD −1.75, 95% CI −2.58 to −0.92). Sensitivity analyses confirmed the results.Conclusions: Patients with COPD have significantly impaired endothelial function compared to controls without COPD. Future studies should delineate the importance of endothelial dysfunction towards development of cardiovascular disease in COPD.

Verified
Journal Article
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IMIoanna Minopoulou
Ioanna Minopoulou
MTMarieta P. Theodorakopoulou
Marieta P. Theodorakopoulou
ABAfroditi Boutou
Afroditi Boutou
Alexandra ArvanitakiAlexandra Arvanitaki
Alexandra Arvanitaki
GPGEORGIA PITSIOU
GEORGIA PITSIOU
TDTheodoros Dimitroulas
Theodoros Dimitroulas
Systemic sclerosis (SSc)-related pulmonary arterial hypertension (SSc-PAH) is a leading cause of mortality in SSc. The extent of peripheral microvasculopathy assessed through nailfold capillaroscopy might correlate with the presence of PAH in SSc patients. We searched the PubMed, Cochrane Library, Scopus, and Web of Science databases and performed a random effects meta-analysis of observational studies comparing nailfold capillaroscopic alterations in SSc-PAH versus SSc-noPAH patients. Weighted mean differences (WMD) with the corresponding confidence intervals (CIs) were estimated. The quality of the included studies was evaluated using a modified Newcastle–Ottawa scale. Seven studies with 101 SSc-PAH and 277 SSc-noPAH participants were included. Capillary density was marginally reduced in the SSc-PAH group (WMD: −1.0, 95% CI: −2.0 to 0.0, I2 = 86%). This effect was strengthened once PAH diagnosis was confirmed by right heart catheterization (WMD: −1.2, 95% CI: −2.3 to −0.1, I2 = 85%). An increase in capillary loop width was observed in SSc-PAH compared to SSc-noPAH patients (WMD: 10.9, 95% CI: 2.5 to 19.4, I2 = 78%). Furthermore, SSc-PAH patients had a 7.3 times higher likelihood of active or late scleroderma pattern (95% CI: 3.0 to 18.0, I2 = 4%). SSc-PAH patients presented with worse nailfold capillaroscopic findings compared to SSc-noPAH patients.

18 May 2023 in Nephrology Dialysis Transplantation
Verified
Journal Article
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Pantelis A SarafidisPantelis A Sarafidis
Pantelis A Sarafidis
MTMarieta P. Theodorakopoulou
Marieta P. Theodorakopoulou
AOAlberto Ortiz
Alberto Ortiz
BFBeatriz Fernandez-Fernández
Beatriz Fernandez-Fernández
INIonut Nistor
Ionut Nistor
Mario CozzolinoMario Cozzolino
Mario Cozzolino
Atherosclerotic renovascular disease (ARVD) is the most common type of renal artery stenosis. It represents a common health problem with clinical presentations relevant to many medical specialties and carries a high risk for future cardiovascular and renal events, as well as overall mortality. The available evidence regarding the management of ARVD is conflicting. Randomized controlled trials failed to demonstrate superiority of percutaneous transluminal renal artery angioplasty (PTRA) with or without stenting in addition to standard medical therapy compared with medical therapy alone in lowering blood pressure levels or preventing adverse renal and cardiovascular outcomes in patients with ARVD, but they carried several limitations and met important criticism. Observational studies showed that PTRA is associated with future cardiorenal benefits in patients presenting with high-risk ARVD phenotypes (i.e. flash pulmonary oedema, resistant hypertension or rapid loss of kidney function). This clinical practice document, prepared by experts from the European Renal Best Practice (ERBP) board of the European Renal Association (ERA) and from the Working Group on Hypertension and the Kidney of the European Society of Hypertension (ESH), summarizes current knowledge in epidemiology, pathophysiology and diagnostic assessment of ARVD and presents, following a systematic literature review, key evidence relevant to treatment, with an aim to support clinicians in decision making and everyday management of patients with this condition.

22 November 2024 in Clinical Kidney Journal
Verified
Journal Article
Open access
MTMarieta P. Theodorakopoulou
Marieta P. Theodorakopoulou
AOAlberto Ortiz
Alberto Ortiz
BFBeatriz Fernandez-Fernandez
Beatriz Fernandez-Fernandez
MKMehmet Kanbay
Mehmet Kanbay
RMRoberto Minutolo
Roberto Minutolo
Pantelis A SarafidisPantelis A Sarafidis
Pantelis A Sarafidis
Until recently, major bodies producing guidelines for the management of hypertension in patients with chronic kidney disease (CKD) disagreed in some key issues. In June 2023, the European Society of Hypertension (ESH) published the new 2023 ESH Guidelines for the management of arterial hypertension a document that was endorsed by the European Renal Association. Several novel recommendations relevant to the management of hypertension in patients with CKD appeared in these guidelines, which have been updated to reflect the latest evidence-based practices in managing hypertension in CKD patients. Most of these are in general agreement with the previous 2021 Kidney Disease: Improving Global Outcomes (KDIGO) guidelines—some reflect different emphasis on some topics (i.e. detailed algorithms on antihypertensive agent use) while others reflect evolution of important evidence in recent years. The aim of the present review is to summarize and comment on key points and main areas of focus in patients with CKD, as well as to compare and highlight the main differences with the 2021 KDIGO Guidelines for the management of blood pressure in CKD.

11 January 2024 in Nephrology Dialysis Transplantation
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AKArtemios G. Karagiannidis
Artemios G. Karagiannidis
MTMarieta P. Theodorakopoulou
Marieta P. Theodorakopoulou
EPEVA PELLA
EVA PELLA
Pantelis A SarafidisPantelis A Sarafidis
Pantelis A Sarafidis
AOAlberto Ortiz
Alberto Ortiz
Uromodulin is a kidney-specific glycoprotein which is exclusively produced by the epithelial cells lining the thick ascending limb and early distal convoluted tubule. It is currently recognized as a multifaceted player in kidney physiology and disease, with discrete roles for intracellular, urinary, interstitial and serum uromodulin. Among these, uromodulin modulates renal sodium handling through the regulation of tubular sodium transporters that reabsorb sodium and are targeted by diuretics, such as the loop diuretic–sensitive Na+-K+-2Cl− cotransporter type 2 (NKCC2) and the thiazide-sensitive Na+/Cl− cotransporter (NCC). Given these roles, the contribution of uromodulin to sodium-sensitive hypertension has been proposed. However, recent studies in humans suggest a more complex interaction between dietary sodium intake, uromodulin and blood pressure. This review presents an updated overview of the uromodulin's biology and its various roles, and focuses on the interaction between uromodulin and sodium-sensitive hypertension.

4 March 2021 in COPD: Journal of Chronic Obstructive Pulmonary Disease
Verified
Journal Article
Closed access
MTMarieta P. Theodorakopoulou
Marieta P. Theodorakopoulou
DBDimitra Rafailia Bakaloudi
Dimitra Rafailia Bakaloudi
MAMaria Eleni Alexandrou
Maria Eleni Alexandrou
DPDespoina Papakosta
Despoina Papakosta
APAthanasia Pataka
Athanasia Pataka
ABAfroditi Boutou
Afroditi Boutou
Chronic obstructive pulmonary disease (COPD) is characterized by high cardiovascular risk, which is further amplified during acute COPD exacerbations (AECOPD). Endothelial dysfunction has been previously suggested as one of the potential pathogenetic mechanisms. In order to study the effects of AECOPD on endothelial function assessed by available functional methods, we performed a literature search involving Pubmed and Scopus databases. Eligible studies were those that included adult patients with COPD and evaluated endothelial damage via semi-invasive or noninvasive functional methods, during AECOPD and after recovery or in stable condition. Newcastle-Ottawa Scale was applied to evaluate the quality of retrieved studies. Endothelial function was significantly impaired during AECOPD compared to recovery/stable condition (SMD: −0.87, 95%CI [−1.19, −0.55]). Patients during AECOPD presented a significantly worse response in endothelium-dependent (flow-mediated dilatation WMD: −2.59, 95%CI [−3.75, −1.42]) and independent vasodilation (nitroglycerine-mediated dilatation WMD: −3.13, 95%CI [−5.18, −1.09]) compared to recovery. Sensitivity analyses confirmed the above results. In conclusion, endothelium-dependent and independent vasodilation is worse during AECOPD compared to the stable condition. Endothelial dysfunction could play a role in the high cardiovascular risk during AECOPD.