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Article: Cardiovascular actions of adiponectin: pathophysiologic implications.

Maia-Fernandes, Teresa / Roncon-Albuquerque, Roberto / Leite-Moreira, Adelino F

Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology

2008 Volume 27, Issue 11, Page(s) 1431–1449

Abstract: The classical view of adipose tissue as a passive reservoir for energy storage is no longer valid. In the past decade, adipose tissue has been shown to have endocrine functions regulating cardiovascular physiology. In the present review we will analyze ... ...

Abstract	The classical view of adipose tissue as a passive reservoir for energy storage is no longer valid. In the past decade, adipose tissue has been shown to have endocrine functions regulating cardiovascular physiology. In the present review we will analyze current knowledge about adiponectin, the most abundant peptide secreted by adipocytes, with particular focus on its cardiovascular actions. Adiponectin secretion is inhibited by TNF-alpha and by catecholamines, and is stimulated by PPAR gamma activation. Adiponectin acts through two main receptors, AdipoR1 and AdipoR2. In the liver, adiponectin modulates lipid and energy metabolism, stimulating fatty acid catabolism and reducing gluconeogenesis. In skeletal muscle, it promotes fatty acid oxidation and glucose uptake. Taken together, the metabolic actions of adiponectin enhance insulin sensitivity and reduce circulating lipid levels. Adiponectin also has a protective effect against atherogenesis, acting on the endothelium and smooth muscle cells, raising NO secretion and inhibiting production of adhesion factors. In the heart, adiponectin inhibits cardiomyocyte hypertrophy and myocardial fibrosis, through poorly understood mechanisms. Adiponectin production has also been shown to be reduced in patients with obesity and type 2 diabetes, and its circulating levels have prognostic significance in various cardiovascular diseases. Finally, the role of this peptide as a therapeutic target has been evaluated, through various lifestyle and pharmacological interventions. Weight loss, physical exercise, renin-angiotensin system inhibitors and PPAR alpha and PPAR gamma agonists enhance adiponectin production. Further studies are needed, however, to clarify the clinical relevance of adiponectin in the pathophysiology and treatment of cardiovascular diseases.
MeSH term(s)	AMP-Activated Protein Kinases/physiology ; Adipocytes/secretion ; Adiponectin/genetics ; Adiponectin/physiology ; Adipose Tissue/metabolism ; Atherosclerosis/metabolism ; Atherosclerosis/pathology ; Biomarkers/blood ; Cardiovascular Diseases/blood ; Cyclic AMP-Dependent Protein Kinases/physiology ; Dyslipidemias/etiology ; Endothelium, Vascular/metabolism ; Foam Cells/cytology ; Humans ; Receptors, Adiponectin/physiology
Chemical Substances	ADIPOR1 protein, human ; ADIPOR2 protein, human ; Adiponectin ; Biomarkers ; Receptors, Adiponectin ; Cyclic AMP-Dependent Protein Kinases (EC 2.7.11.11) ; AMP-Activated Protein Kinases (EC 2.7.11.31)
Language	Portuguese
Publishing date	2008-11
Publishing country	Portugal
Document type	Journal Article ; Research Support, Non-U.S. Gov't ; Review
ZDB-ID	632718-7
ISSN	0870-2551 ; 0304-4750
ISSN	0870-2551 ; 0304-4750
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Article ; Online: Allele-specific miRNA-binding analysis identifies candidate target genes for breast cancer risk.

Jacinta-Fernandes, Ana / Xavier, Joana M / Magno, Ramiro / Lage, Joel G / Maia, Ana-Teresa

NPJ genomic medicine

2020 Volume 5, Page(s) 4

Abstract: Most breast cancer (BC) risk-associated single-nucleotide polymorphisms (raSNPs) identified in genome-wide association studies (GWAS) are believed ... ...

Abstract	Most breast cancer (BC) risk-associated single-nucleotide polymorphisms (raSNPs) identified in genome-wide association studies (GWAS) are believed to
Language	English
Publishing date	2020-02-13
Publishing country	England
Document type	Journal Article
ZDB-ID	2813848-X
ISSN	2056-7944 ; 2056-7944
ISSN (online)	2056-7944
ISSN	2056-7944
DOI	10.1038/s41525-019-0112-9
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Article: Enhanced sweet taste perception in obesity: Joint analysis of gustatory data from multiple studies.

Ribeiro, Gabriela / Torres, Sandra / Fernandes, Ana B / Camacho, Marta / Branco, Teresa L / Martins, Sandra S / Raimundo, Armando / Oliveira-Maia, Albino J

Frontiers in nutrition

2022 Volume 9, Page(s) 1028261

Abstract: Introduction: While sweet taste perception is a potential determinant of feeding behavior in obesity, the supporting evidence is inconsistent and is typically associated with methodological limitations. Notably, possible associations between sweet taste ...

Abstract	Introduction: While sweet taste perception is a potential determinant of feeding behavior in obesity, the supporting evidence is inconsistent and is typically associated with methodological limitations. Notably, possible associations between sweet taste perception and measures of food reward remain undetermined. Materials and methods: We conducted a cross-sectional analysis comparing 246 individuals with severe obesity and 174 healthy volunteers using a validated method for taste perception assessment. We included gustatory variables, namely intensity and pleasantness ratings of sour, salt, sweet, and bitter tastants, and taste thresholds assessed by electrogustometry. Reward-related feeding behavior, including hedonic hunger, food addiction, feeding behavior traits, and acceptance of foods and alcohol, was evaluated using self-rated scales for comparison with gustatory measures. Result: In logistic regressions adjusted for age, gender, educational level, and research center, we found that a greater likelihood of belonging to the obesity group was associated with higher sweet intensity ratings (OR = 1.4, Conclusion: We found that individuals with obesity report higher sweet taste intensity ratings than healthy controls. Furthermore, while psychological measures of reward-related feeding behavior assess a common construct, sweet intensity perception may represent a different obesity-related dimension.
Language	English
Publishing date	2022-12-20
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2776676-7
ISSN	2296-861X
ISSN	2296-861X
DOI	10.3389/fnut.2022.1028261
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Article: Epidemiological and Clinical Aspects of Cutaneous and Mucosal Leishmaniases in Portugal: Retrospective Analysis of Cases Diagnosed in Public Hospitals and Reported in the Literature between 2010 and 2020.

Rocha, Rafael / Conceição, Cláudia / Gonçalves, Luzia / Carvalho, Ana Cláudia / Maia, André / Martins, André / Carujo, António / Maio, António / Forra, Catarina / Melita, Catarina / Couto, Daniela / Fernandes, Diana / Pereira, Dulce / Leal, Ema / Sarmento, Helena / Sousa, Inês / Gonçalves, Jean-Pierre / Marinho, Joana / Vasconcelos, Joana /

Microorganisms

2024 Volume 12, Issue 4

Abstract: Leishmania ... ...

Abstract	Leishmania infantum
Language	English
Publishing date	2024-04-18
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2720891-6
ISSN	2076-2607
ISSN	2076-2607
DOI	10.3390/microorganisms12040819
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Article ; Online: Prevalence of the Most Frequent Neuropsychiatric Diagnoses in Hospitalized SARS-CoV-2 Patients Evaluated by Liaison Psychiatry: Cross-Sectional Study.

Fernandes, Luis Afonso / Garcia Ribeiro, Catarina / Martins, Marisa / Figueiredo, Inês / Dias, Manuel / Facucho, João / Carreno, Joana / Guerra, Inês / Vieira, Carlos / Oliveira, Catarina / Luís, Alice / Maia, Teresa

Acta medica portuguesa

2022 Volume 35, Issue 6, Page(s) 425–432

Abstract: Introduction: The SARS-CoV-2 infection has been associated with the acute onset of mental and behavioural symptoms and psychiatric disorders. The aim of this study was to assess the prevalence of the different neuropsychiatric diagnoses in hospitalized ... ...

Abstract	Introduction: The SARS-CoV-2 infection has been associated with the acute onset of mental and behavioural symptoms and psychiatric disorders. The aim of this study was to assess the prevalence of the different neuropsychiatric diagnoses in hospitalized patients with SARS-CoV-2 infection assessed by Liaison Psychiatry. Material and methods: We performed a cross-sectional study in a hospital near Lisbon, Portugal. We reviewed the electronic health records from all inpatients with a positive SARS-CoV-2 RT-PCR test that were assessed by the Liaison Psychiatry Unit (LPU) between February and December 2020. We reviewed relevant sociodemographic and clinical data, including 15 neuropsychiatric symptoms. The prevalence of psychiatric disorders was our main outcome. We also explored differences between two groups: patients with delirium (delirium group) and patients without delirium (no delirium group). Results: We included 46 cases [Age: median = 67 years; interquartile range (IQR) = 24)], with 60.9% male individuals. Delirium was the most frequent diagnosis in our sample (43.5%), followed by major depressive disorder (21.7%). Patients with delirium were more likely to suffer from COVID-19 symptoms (delirium: 19/20, 95%; no delirium: 14/26, 53.8%; p = 0.02), and to have a longer time interval between a positive SARS-CoV-2 RT-PCR test and an evaluation by the LPU (delirium: median = 16.5 days, IQR = 16; no delirium: median = 8 days, IQR = 16.3; p = 0.045). Agitation (52.2%) and cognitive symptoms (47.8%) were the most reported neuropsychiatric symptoms. Conclusion: We found a high prevalence of delirium in our sample. This finding is in line with recent literature concerning hospitalized COVID-19 patients The higher frequency of COVID-19 symptoms found in the delirium group suggests a possible association between symptomatic SARS-CoV-2 infection and delirium onset.
MeSH term(s)	Humans ; Male ; Aged ; Female ; SARS-CoV-2 ; COVID-19/diagnosis ; COVID-19/epidemiology ; Cross-Sectional Studies ; Prevalence ; Depressive Disorder, Major ; Psychiatry
Language	English
Publishing date	2022-02-16
Publishing country	Portugal
Document type	Review ; Journal Article
ZDB-ID	603078-6
ISSN	1646-0758 ; 0870-399X
ISSN (online)	1646-0758
ISSN	0870-399X
DOI	10.20344/amp.16410
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Article ; Online: Peritoneal Dialysis Exit-Site Care Protocols in Portugal and Its Association with Catheter-Related Infections.

Ferreira, Ana Carina / Fernandes, Vasco / Rodrigues, Anabela / Abreu, Cristina Pinto / Pereira, Marta / Guedes, Anabela Malho / Gomes, Ana Marta / Cabrita, António / Soares, Carlos / Pego, Cátia / Ferrer, Francisco / Bernardo, Idalécio / Fernandes, João Carlos / Assunção, José / Oliveira, Luís / Amoedo, Manuel / Carvalho, Maria João / Branco, Patrícia / Maia, Pedro /

Chorão, Raquel / Castro, Rui / Silva, Rui / Sousa, Tânia / Mendes, Teresa

Blood purification

2023 Volume 52, Issue 4, Page(s) 366–372

Abstract: Introduction: Exit-site infection (ESi) prevention is a key factor in lowering the risk of peritonitis. This study aimed to evaluate the associations between exit-site (ES) care protocols and the annual incidence rates of ESi and peritonitis in Portugal. ...

Abstract	Introduction: Exit-site infection (ESi) prevention is a key factor in lowering the risk of peritonitis. This study aimed to evaluate the associations between exit-site (ES) care protocols and the annual incidence rates of ESi and peritonitis in Portugal. Methods: We performed a national survey using two questionnaires: one about the incidence of catheter-related infections and the other characterizing patients' education and ES care protocols. Results: In 2017 and 2018, 14 Portuguese units followed 764 and 689 patients. ESi incidence rate was 0.41 episodes/year, and the peritonitis incidence rate was 0.37. All units monitor catheter-related infections on a yearly basis, use antibiotic prophylaxis at the time of catheter placement, and treat nasal carriage of S. aureus, although with different approaches. Screening for nasal carriage of S. aureus is performed by 12 units, and daily topical antibiotic cream is recommended by 6 out of 14 of the units. We did not find statistical differences in ESi/peritonitis, comparing these practices. The rate of ESis was lower with nonocclusive dressing immediately after catheter insertion, bathing without ES dressing, with the use of colostomy bags in beach baths and was higher with the use of bath sponge. The peritonitis rate was lower with bathing without ES dressing and if shaving of the external cuff was performed in the presence of chronic ESi. Conclusions: We found potential proceedings associated with ESi and peritonitis. A regular national audit of peritoneal dialysis units is an important tool for clarifying the best procedures for reduction of catheter-related infections.
MeSH term(s)	Humans ; Mupirocin ; Portugal ; Catheter-Related Infections/etiology ; Staphylococcus aureus ; Catheters, Indwelling/adverse effects ; Administration, Topical ; Renal Dialysis/adverse effects ; Anti-Bacterial Agents ; Peritoneal Dialysis/adverse effects ; Peritonitis/etiology
Chemical Substances	Mupirocin (D0GX863OA5) ; Anti-Bacterial Agents
Language	English
Publishing date	2023-01-26
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	605548-5
ISSN	1421-9735 ; 0253-5068
ISSN (online)	1421-9735
ISSN	0253-5068
DOI	10.1159/000528641
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Article ; Online: Prevalence of the Most Frequent Neuropsychiatric Diagnoses in Hospitalized SARS-CoV-2 Patients Evaluated by Liaison Psychiatry

Luis Afonso Fernandes / Catarina Garcia Ribeiro / Marisa Martins / Inês Figueiredo / Manuel Dias / João Facucho / Joana Carreno / Inês Guerra / Carlos Vieira / Catarina Oliveira / Alice Luís / Teresa Maia

Acta Médica Portuguesa, Vol 35, Iss 6, Pp 425-

Cross-Sectional Study

2022 Volume 432

Abstract	Introduction: The SARS-CoV-2 infection has been associated with the acute onset of mental and behavioural symptoms and psychiatric disorders. The aim of this study was to assess the prevalence of the different neuropsychiatric diagnoses in hospitalized patients with SARS-CoV-2 infection assessed by Liaison Psychiatry. Material and Methods: We performed a cross-sectional study in a hospital near Lisbon, Portugal. We reviewed the electronic health records from all inpatients with a positive SARS-CoV-2 RT-PCR test that were assessed by the Liaison Psychiatry Unit (LPU) between February and December 2020. We reviewed relevant sociodemographic and clinical data, including 15 neuropsychiatric symptoms. The prevalence of psychiatric disorders was our main outcome. We also explored differences between two groups: patients with delirium (delirium group) and patients without delirium (no delirium group). Results: We included 46 cases [Age: median = 67 years; interquartile range (IQR) = 24)], with 60.9% male individuals. Delirium was the most frequent diagnosis in our sample (43.5%), followed by major depressive disorder (21.7%). Patients with delirium were more likely to suffer from COVID-19 symptoms (delirium: 19/20, 95%; no delirium: 14/26, 53.8%; p = 0.02), and to have a longer time interval between a positive SARS-CoV-2 RT-PCR test and an evaluation by the LPU (delirium: median = 16.5 days, IQR = 16; no delirium: median = 8 days, IQR = 16.3; p = 0.045). Agitation (52.2%) and cognitive symptoms (47.8%) were the most reported neuropsychiatric symptoms. Conclusion: We found a high prevalence of delirium in our sample. This finding is in line with recent literature concerning hospitalized COVID-19 patients The higher frequency of COVID-19 symptoms found in the delirium group suggests a possible association between symptomatic SARS-CoV-2 infection and delirium onset.
Keywords	covid-19 ; delirium ; mental health services ; psychiatry ; referral and consultation ; Medicine ; R ; Medicine (General) ; R5-920
Subject code	150
Language	English
Publishing date	2022-06-01T00:00:00Z
Publisher	Ordem dos Médicos
Document type	Article ; Online
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Article ; Online: THOR is a targetable epigenetic biomarker with clinical implications in breast cancer.

Apolónio, Joana Dias / Dias, João S / Fernandes, Mónica Teotónio / Komosa, Martin / Lipman, Tatiana / Zhang, Cindy H / Leão, Ricardo / Lee, Donghyun / Nunes, Nuno Miguel / Maia, Ana-Teresa / Morera, José L / Vicioso, Luis / Tabori, Uri / Castelo-Branco, Pedro

Clinical epigenetics

2022 Volume 14, Issue 1, Page(s) 178

Abstract: Background: Breast cancer (BC) is the most frequently diagnosed cancer and a leading cause of death among women worldwide. Early BC is potentially curable, but the mortality rates still observed among BC patients demonstrate the urgent need of novel and ...

Abstract	Background: Breast cancer (BC) is the most frequently diagnosed cancer and a leading cause of death among women worldwide. Early BC is potentially curable, but the mortality rates still observed among BC patients demonstrate the urgent need of novel and more effective diagnostic and therapeutic options. Limitless self-renewal is a hallmark of cancer, governed by telomere maintenance. In around 95% of BC cases, this process is achieved by telomerase reactivation through upregulation of the human telomerase reverse transcriptase (hTERT). The hypermethylation of a specific region within the hTERT promoter, termed TERT hypermethylated oncological region (THOR) has been associated with increased hTERT expression in cancer. However, its biological role and clinical potential in BC have never been studied to the best of our knowledge. Therefore, we aimed to investigate the role of THOR as a biomarker and explore the functional impact of THOR methylation status in hTERT upregulation in BC. Results: THOR methylation status in BC was assessed by pyrosequencing on discovery and validation cohorts. We found that THOR is significantly hypermethylated in malignant breast tissue when compared to benign tissue (40.23% vs. 12.81%, P < 0.0001), differentiating malignant tumor from normal tissue from the earliest stage of disease. Using a reporter assay, the addition of unmethylated THOR significantly reduced luciferase activity by an average 1.8-fold when compared to the hTERT core promoter alone (P < 0.01). To further investigate its biological impact on hTERT transcription, targeted THOR demethylation was performed using novel technology based on CRISPR-dCas9 system and significant THOR demethylation was achieved. Cells previously demethylated on THOR region did not develop a histologic cancer phenotype in in vivo assays. Additional studies are required to validate these observations and to unravel the causality between THOR hypermethylation and hTERT upregulation in BC. Conclusions: THOR hypermethylation is an important epigenetic mark in breast tumorigenesis, representing a promising biomarker and therapeutic target in BC. We revealed that THOR acts as a repressive regulatory element of hTERT and that its hypermethylation is a relevant mechanism for hTERT upregulation in BC.
MeSH term(s)	Humans ; Female ; Telomerase/genetics ; Telomerase/metabolism ; DNA Methylation ; Breast Neoplasms/genetics ; Epigenesis, Genetic ; Biomarkers/metabolism
Chemical Substances	Telomerase (EC 2.7.7.49) ; Biomarkers
Language	English
Publishing date	2022-12-18
Publishing country	Germany
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2553921-8
ISSN	1868-7083 ; 1868-7075
ISSN (online)	1868-7083
ISSN	1868-7075
DOI	10.1186/s13148-022-01396-3
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Article ; Online: Tracheal lipoma mimicking obstructive lung disease.

Mota, Vinícius Turano / Maia, José Geraldo Soares / Barbosa, Ana Teresa Fernandes / Fernandes, Diego Franco Silveira / Rocha, Emanuelly Botelho

Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia

2009 Volume 36, Issue 1, Page(s) 152–155

Abstract: Tracheal tumors are rare and can be difficult to diagnose due to their capacity to mimic other obstructive lung diseases, such as asthma and COPD. We report the case of a female patient with a tracheal tumor. She had previously been treated for asthma ... ...

Abstract	Tracheal tumors are rare and can be difficult to diagnose due to their capacity to mimic other obstructive lung diseases, such as asthma and COPD. We report the case of a female patient with a tracheal tumor. She had previously been treated for asthma and COPD, with little response to the treatment. The onset of infectious complications prompted further investigation. Chest CT images suggested the presence of a tumor, which was confirmed by fiberoptic bronchoscopy. The tumor was endoscopically resected. However, the patient evolved to death due to pneumonia and septic shock.
MeSH term(s)	Aged, 80 and over ; Bronchoscopy ; Diagnosis, Differential ; Fatal Outcome ; Female ; Fiber Optic Technology ; Humans ; Lipoma/pathology ; Lung Diseases, Obstructive/diagnosis ; Lung Diseases, Obstructive/drug therapy ; Medication Errors ; Tracheal Neoplasms/pathology
Language	Portuguese
Publishing date	2009-03-07
Publishing country	Brazil
Document type	Case Reports ; Journal Article
ZDB-ID	2223157-2
ISSN	1806-3756 ; 1806-3713
ISSN (online)	1806-3756
ISSN	1806-3713
DOI	10.1590/s1806-37132010000100021
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Article ; Online: A agroecologia como perspectiva de sustentabilidade na agricultura familiar

Christiane Fernandes dos Santos / Elisabete Stradiotto Siqueira / Iriane Teresa de Araújo / Zildenice Matias Guedes Maia

Ambiente & Sociedade, Vol 17, Iss 2, Pp 33-

2014 Volume 52

Abstract: O presente trabalho avalia aspectos de ordem social, econômica e ambiental advindos das práticas dos agricultores familiares da APROFAM (Associação dos Produtores e Produtoras Agroecológicas de Mossoró), que comercializam semanalmente sua produção na ... ...

Abstract	O presente trabalho avalia aspectos de ordem social, econômica e ambiental advindos das práticas dos agricultores familiares da APROFAM (Associação dos Produtores e Produtoras Agroecológicas de Mossoró), que comercializam semanalmente sua produção na Feira Agroecológica, de modo a analisar como proporcionam o desenvolvimento sustentável da agricultura de base familiar. Para tanto, foram realizadas entrevistas dialogadas com seis desses produtores. Os dados foram obtidos através de visita in loco, registro fotográfico e levantamento de dados qualitativos e quantitativos no período de janeiro a março de 2012. A criação da Feira possibilitou o acesso ao mercado local, organização por parte dos produtores para adquirir a certificação participativa, produção mais diversificada, aumento na renda familiar, colaborando com a permanência das famílias no campo. Observou-se, ainda, que existem desafios a serem superados, pois 75% dos entrevistados não conseguem contabilizar seus custos de produção, nem mensurar as quantidades comercializadas. Ainda, existe insuficiência de assessoria técnica, disponibilidade hídrica, entre outros, que impossibilitam o fortalecimento dessa forma de organização social.
Keywords	Agroecologia ; Sustentabilidade ; Espaço rural ; Human ecology. Anthropogeography ; GF1-900
Language	English
Publishing date	2014-06-01T00:00:00Z
Publisher	Associação Nacional de Pós-Graduação e Pesquisa em Ambiente e Sociedade (ANPPAS)
Document type	Article ; Online
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