Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 76
Filtrar
1.
Curr Oncol Rep ; 23(2): 13, 2021 01 07.
Artigo em Inglês | MEDLINE | ID: mdl-33415405

RESUMO

PURPOSE OF REVIEW: Immune checkpoint inhibitors, such as monoclonal antibodies targeting CTLA-4, PD-1, and PD-L1, have improved the outcome of many malignancies, but serious immune-related cardiovascular adverse events have been observed. Patients' risk factors for these toxicities are currently being investigated. RECENT FINDINGS: Interfering with the CTLA-4 and PD-1 axes can bring to several immune-related adverse events, including cardiotoxic events such as autoimmune myocarditis, pericarditis, and vasculitis, suggesting that these molecules play an important role in preventing autoimmunity. Risk factors (such as pre-existing cardiovascular conditions, previous and concomitant cardiotoxic treatments, underlying autoimmune diseases, tumor-related factors, simultaneous immune-related toxic effects, and genetic factors) should be always recognized for the correct management of these toxicities.


Assuntos
Cardiotoxicidade/etiologia , Pontos de Checagem do Ciclo Celular/efeitos dos fármacos , Inibidores de Checkpoint Imunológico/efeitos adversos , Imunoterapia/efeitos adversos , Antineoplásicos Imunológicos/uso terapêutico , Antígeno B7-H1 , Antígeno CTLA-4 , Humanos , Neoplasias/tratamento farmacológico , Fatores de Risco
2.
BMC Geriatr ; 20(1): 375, 2020 09 29.
Artigo em Inglês | MEDLINE | ID: mdl-32993569

RESUMO

BACKGROUND: Several tools have been proposed and validated to operationally define frailty. Recently, the Italian Frailty index (IFi), an Italian modified version of Frailty index, has been validated but its use in clinical practice is limited by long time of administration. Therefore, the aim of this study was to create and validate a quick version of the IFi (AGILE). METHODS: Validation study was performed by administering IFi and AGILE, after a Comprehensive Geriatric Assessment (CGA) in 401 subjects aged 65 or over (77 ± 7 years). AGILE was a 10-items tool created starting from the more predictive items of the four domains of frailty investigated by IFi (mental, physical, socioeconomic and nutritional). AGILE scores were stratified in light, moderate and severe frailty. At 24 months of follow-up, death, disability (taking into account an increase in ADL lost ≥1 from the baseline) and hospitalization were considered. Area under curve (AUC) was evaluated for both IFi and AGILE. RESULTS: Administration time was 9.5 ± 3.8 min for IFi administered after a CGA, and 2.4 ± 1.2 min for AGILE, regardless of CGA (p < 0.001). With increasing degree of frailty, prevalence of mortality increased progressively from 6.5 to 41.8% and from 9.0 to 33.3%, disability from 16.1 to 64.2% and from 22.1 to 59.8% and hospitalization from 17.2 to 58.7% and from 27.0 to 52.2% with AGILE and IFi, respectively (p = NS). Relative Risk for each unit of increase in AGILE was 56, 44 and 24% for mortality, disability and hospitalization, respectively and was lower for IFi (8, 7 and 4% for mortality, disability and hospitalization, respectively). The AUC was higher in AGILE vs. IFi for mortality (0.729 vs. 0.698), disability (0.715 vs. 0.682) and hospitalization (0.645 vs. 0.630). CONCLUSIONS: Our study shows that AGILE is a rapid and effective tool for screening multidimensional frailty, able to predict mortality, disability and hospitalization, especially useful in care settings that require reliable assessment instruments with short administration time.


Assuntos
Fragilidade , Idoso , Idoso de 80 Anos ou mais , Idoso Fragilizado , Fragilidade/diagnóstico , Avaliação Geriátrica , Humanos , Itália/epidemiologia , Estudos Prospectivos
3.
Int J Mol Sci ; 21(12)2020 Jun 22.
Artigo em Inglês | MEDLINE | ID: mdl-32580360

RESUMO

Systemic sclerosis is an auto-immune disease characterized by skin involvement that often affects multiple organ systems. Pulmonary hypertension is a common finding that can significantly impact prognosis. Molecular pathophysiological mechanisms underlying pulmonary hypertension in systemic sclerosis can be extremely heterogeneous, leading to distinct clinical phenotypes. In addition, different causes of pulmonary hypertension may overlap within the same patient. Since pulmonary hypertension treatment is very different for each phenotype, it is fundamental to perform an adequate diagnostic work-up to properly and promptly identify the prevalent mechanism underlying pulmonary hypertension in order to start the right therapies. When pulmonary hypertension is caused by a primary vasculopathy of the small pulmonary arteries, treatment with pulmonary vasodilators, often in an initial double-combination regimen, is indicated, aimed at reducing the mortality risk profile. In this review, we describe the different clinical phenotypes of pulmonary hypertension in the scleroderma population and discuss the utility of clinical tools to identify the presence of pulmonary vascular disease. Furthermore, we focus on systemic sclerosis-associated pulmonary arterial hypertension, highlighting the advances in the knowledge of right ventricular dysfunction in this setting and the latest updates in terms of treatment with pulmonary vasodilator drugs.


Assuntos
Hipertensão Pulmonar/diagnóstico , Escleroderma Sistêmico/complicações , Vasodilatadores/uso terapêutico , Humanos , Hipertensão Pulmonar/tratamento farmacológico , Hipertensão Pulmonar/etiologia , Fenótipo , Prognóstico , Fatores de Risco
4.
ESC Heart Fail ; 7(4): 1571-1584, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32352228

RESUMO

AIMS: The effects of GRK2 inhibition on myocardial metabolism in heart failure (HF) are unchartered. In this work, we evaluated the impact of pharmacological inhibition of GRK2 by a cyclic peptide, C7, on metabolic, biochemical, and functional phenotypes in experimental HF. METHODS AND RESULTS: C7 was initially tested on adult mice ventricular myocyte from wild type and GRK2 myocardial deficient mice (GRK2-cKO), to assess the selectivity on GRK2 inhibition. Then, chronic infusion of 2 mg/kg/day of C7 was performed in HF mice with cryogenic myocardial infarction. Cardiac function in vivo was assessed by echocardiography and cardiac catheterization. Histological, biochemical, and metabolic studies were performed on heart samples at time points. C7 induces a significant increase of contractility in wild type but not in adult ventricle myocytes from GRK2-cKO mice, thus confirming C7 selectivity for GRK2. In HF mice, 4 weeks of treatment with C7 improved metabolic features, including mitochondrial organization and function, and restored the biochemical and contractile responses. CONCLUSIONS: GRK2 is a critical molecule in the physiological regulation of cardiac metabolism. Its alterations in the failing heart can be pharmacologically targeted, leading to the correction of metabolic and functional abnormalities observed in HF.


Assuntos
Insuficiência Cardíaca , Infarto do Miocárdio , Animais , Quinase 2 de Receptor Acoplado a Proteína G , Insuficiência Cardíaca/tratamento farmacológico , Camundongos , Miocárdio , Miócitos Cardíacos
6.
J Affect Disord ; 272: 132-137, 2020 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-32379604

RESUMO

BACKGROUND: Depression is highly prevalent in Heart Failure (HF). Treatment with sacubitril/valsartan improved quality of life and survival in HF patients. Aim of the study was to investigate prospectively the effect of sacubitril/valsartan on depression in advanced HF patients in waiting list for heart transplant (HT). METHODS: 37 consecutive patients with advanced HF in waiting list for HT were treated with sacubitril/valsartan. We analyzed data derived from the assessment performed the year before the beginning of sacubitril/valsartan, at study entry, and at one year of follow-up. Depression was assessed with Beck Depression Inventory II (BDI) scale. Cognitive function were assessed with Mini-Mental State Examination (MMSE). Functioning was evaluated measuring meters at 6 Minute Walking Test (6MWT) and maximum rate of oxygen consumption (VO2 max). RESULTS: At baseline, 64.9% of HF patients were in NYHA III and 35.1% NYHA IIIB, BDI was 15.2 ± 5.2 with 59.5% of patients with a score > 13. MMSE was 27.8 ± 2.6. After one year of follow-up NYHA class improved significantly, with 56.8% in NYHA II, 40.5% in NYHA III and 2.7% NYHA in IIIB (p < 0.001). VO2 max and 6MWT increased. Notably, BDI was 9.5 ± 3.9 with 21.6% of patients with a score > 13. MMSE remain stable (28.2 ± 2.1) (p = 0.104). No statistical differences are observed between data collected in the evaluation 1-year before and soon before treatment with sacubitril/valsartan. Multivariate regression analysis demonstrate a relationship between reduction in BDI-II score and improvement in six-minute walking test independently by the effect of sex, age, selective serotonin reuptake inhibitors, VO2 max, NT-proBNP, PAPs, NYHA class differences evaluated at follow-up versus baseline. CONCLUSIONS: Our study showed a reduction in depressive symptomatology in heart transplant waiting list patients treated with sacubitril/valsartan. The improvement in depressive symptomatology was paralleled by 6MWT increase in the follow-up.


Assuntos
Insuficiência Cardíaca , Qualidade de Vida , Aminobutiratos , Compostos de Bifenilo , Depressão/tratamento farmacológico , Combinação de Medicamentos , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/tratamento farmacológico , Humanos , Volume Sistólico , Tetrazóis , Resultado do Tratamento , Valsartana
7.
Sci Rep ; 10(1): 7129, 2020 04 28.
Artigo em Inglês | MEDLINE | ID: mdl-32346096

RESUMO

The development of therapeutic approaches based on direct cardiac reprogramming of fibroblasts into induced-cardiomyocytes (iCM) has emerged as an attractive strategy to repair the injured myocardium. The identification of the mechanisms driving lineage conversion represents a crucial step toward the development of new and more efficient regenerative strategies. To this aim, here we show that pre-treatment with the Bmi1 inhibitor PTC-209 is sufficient to increase the efficiency of Chemical-induced Direct Cardiac Reprogramming both in mouse embryonic fibroblasts and adult cardiac fibroblasts. PTC-209 induces an overall increase of spontaneously beating iCM at end-stage of reprogramming, expressing high levels of late cardiac markers Troponin T and myosin muscle light chain-2v. The inhibition of Bmi1 expression occurring upon PTC-209 pre-treatment was maintained throughout the reprogramming protocol, contributing to a significant gene expression de-regulation. RNA profiling revealed that, upon Bmi1 inhibition a significant down-regulation of genes associated with immune and inflammatory signalling pathways occurred, with repression of different genes involved in interleukin, cytokine and chemokine pathways. Accordingly, we observed the down-regulation of both JAK/STAT3 and MAPK/ERK1-2 pathway activation, highlighting the crucial role of these pathways as a barrier for cardiac reprogramming. These findings have significant implications for the development of new cardiac regenerative therapies.


Assuntos
Reprogramação Celular/efeitos dos fármacos , Compostos Heterocíclicos com 2 Anéis/farmacologia , Miócitos Cardíacos/efeitos dos fármacos , Complexo Repressor Polycomb 1/antagonistas & inibidores , Proteínas Proto-Oncogênicas/antagonistas & inibidores , Tiazóis/farmacologia , Animais , Biomarcadores/metabolismo , Miosinas Cardíacas/metabolismo , Regulação para Baixo , Fibroblastos/efeitos dos fármacos , Camundongos , Miócitos Cardíacos/citologia , Miócitos Cardíacos/metabolismo , Cadeias Leves de Miosina/metabolismo , Complexo Repressor Polycomb 1/metabolismo , Proteínas Proto-Oncogênicas/metabolismo , Transdução de Sinais , Troponina T/metabolismo
8.
ESC Heart Fail ; 7(3): 1371-1380, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32243099

RESUMO

AIMS: The assessment of frailty in older adults with heart failure (HF) is still debated. Here, we compare the predictive role and the diagnostic accuracy of physical vs. multidimensional frailty assessment on mortality, disability, and hospitalization in older adults with and without HF. METHODS AND RESULTS: A total of 1077 elderly (≥65 years) outpatients were evaluated with the physical (phy-Fi) and multidimensional (m-Fi) frailty scores and according to the presence or the absence of HF. Mortality, disability, and hospitalizations were assessed at baseline and after a 24 month follow-up. Cox regression analysis demonstrated that, compared with phy-Fi score, m-Fi score was more predictive of mortality [hazard ratio (HR) = 1.05 vs. 0.66], disability (HR = 1.02 vs. 0.89), and hospitalization (HR = 1.03 vs. 0.96) in the absence and even more in the presence of HF (HR = 1.11 vs. 0.63, 1.06 vs. 0.98, and 1.14 vs. 1.03, respectively). The area under the curve indicated a better diagnostic accuracy with m-Fi score than with phy-Fi score for mortality, disability, and hospitalizations, both in absence (0.782 vs. 0.649, 0.763 vs. 0.695, and 0.732 vs. 0.666, respectively) and in presence of HF (0.824 vs. 0.625, 0.886 vs. 0.793, and 0.812 vs. 0.688, respectively). CONCLUSIONS: The m-Fi score is able to predict mortality, disability, and hospitalizations better than the phy-Fi score, not only in absence but also in presence of HF. Our data also demonstrate that the m-Fi score has better diagnostic accuracy than the phy-Fi score. Thus, the use of the m-FI score should be considered for the assessment of frailty in older HF adults.


Assuntos
Fragilidade , Insuficiência Cardíaca , Idoso , Idoso Fragilizado , Fragilidade/diagnóstico , Fragilidade/epidemiologia , Avaliação Geriátrica , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/epidemiologia , Hospitalização , Humanos
9.
ESC Heart Fail ; 7(2): 757-762, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-32074411

RESUMO

AIMS: The aim of this study was to investigate prospectively the effect of sacubitril/valsartan in advanced heart failure (HF) patients in waiting list for heart transplantation (HT) and the effect on physical frailty (PF). METHODS AND RESULTS: We treated 37 consecutive patients with advanced HF with sacubitril/valsartan. Patients were followed up until HT, device implant, or last follow-up visit after 2 years of follow-up. At baseline, mean New York Heart Association (NYHA) class was 3.1 ± 0.4, with 64.9% in NYHA III and 35.1% NYHA IIIB. Left ventricular ejection fraction was 23.5 ± 5.8%, VO2 max was 10.3 ± 2.3 mL/kg/min, cardiac index was 2.3 ± 0.5 L/min/m2 , and N-terminal pro-brain natriuretic peptide (NT-pro-BNP) was 4943.0 ± 5326.8 pg/mL. After a mean follow-up of 17.1 ± 4.4 months, no deaths were observed, but NYHA class improved significantly with 56.8% in NYHA II, 40.5% in NYHA III, and 2.7% in NYHA IIIB (P < 0.001). VO2 max and 6 min walk test (6MWT) increased, whereas pulmonary systolic blood pressure, E/E', VE/VCO2 slope, and NT-pro-BNP decreased. At right heart catheterization performed after 1 year of follow-up, cardiac index and pulmonary vascular resistance remained stable, while a decrease in systolic pulmonary artery pressure and pulmonary capillary wedge pressure is observed. Furosemide dosage decrease from 102.7 ± 69.4 to 78.7 ± 66.3 mg (P = 0.040). PF decreased from 3.35 ± 1.0 at baseline to 1.57 ± 1.3 at the end of follow-up (P < 0.001), with a reduction in all PF domains. CONCLUSIONS: Our study showed a rapid improvement in PF in HT waiting list patients treated with sacubitril/valsartan. The improvement in all PF domains was paralleled by VO2 and 6MWT increase and together with an NT-pro-BNP reduction constant over the follow-up.


Assuntos
Fragilidade , Transplante de Coração , Aminobutiratos , Compostos de Bifenilo , Combinação de Medicamentos , Humanos , Volume Sistólico , Valsartana , Função Ventricular Esquerda
10.
Aging Clin Exp Res ; 32(5): 759-768, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-31898173

RESUMO

Type 2 myocardial infarctions (T2-MI) is a type of necrosis that results from reduced oxygen supply and/or increased demand secondary to other causes unrelated to acute coronary atherothrombosis. The development and implementation of sensitive and high-sensitivity cardiac necrosis marker and the age-related increase of comorbidity lead to a boost of the frequency of T2-MI. T2-MI is often a complication of a high degree of clinical frailty in older adults, emerging as a "geriatric syndrome". Age-related non-cardiovascular causes may be the triggering factors and are strongly associated with the diagnosis, treatment, and prognosis of T2-MI. To date, there are no guidelines on management of this pathology in advancing age. Patient-centered approach and comprehensive geriatric assessment play a key role in the diagnosis, therapy and prognosis of geriatric patients with T2-MI.


Assuntos
Envelhecimento , Infarto do Miocárdio/diagnóstico , Idoso , Comorbidade , Avaliação Geriátrica , Humanos , Infarto do Miocárdio/epidemiologia , Necrose , Prognóstico
11.
Nutrients ; 12(1)2020 Jan 14.
Artigo em Inglês | MEDLINE | ID: mdl-31947528

RESUMO

Modifications of lean mass are a frequent critical determinant in the pathophysiology and progression of heart failure (HF). Sarcopenia may be considered one of the most important causes of low physical performance and reduced cardiorespiratory fitness in older patients with HF. Sarcopenia is frequently misdiagnosed as cachexia. However, muscle wasting in HF has different pathogenetic features in sarcopenic and cachectic conditions. HF may induce sarcopenia through common pathogenetic pathways such as hormonal changes, malnutrition, and physical inactivity; mechanisms that influence each other. In the opposite way, sarcopenia may favor HF development by different mechanisms, including pathological ergoreflex. Paradoxically, sarcopenia is not associated with a sarcopenic cardiac muscle, but the cardiac muscle shows a hypertrophy which seems to be "not-functional." First-line agents for the treatment of HF, physical activity and nutritional interventions, may offer a therapeutic advantage in sarcopenic patients irrespective of HF. Thus, sarcopenia is highly prevalent in patients with HF, contributing to its poor prognosis, and both conditions could benefit from common treatment strategies based on pharmacological, physical activity, and nutritional approaches.


Assuntos
Insuficiência Cardíaca/fisiopatologia , Sarcopenia/fisiopatologia , Idoso , Idoso de 80 Anos ou mais , Feminino , Coração/fisiopatologia , Insuficiência Cardíaca/complicações , Humanos , Hipertrofia , Masculino , Músculo Esquelético/fisiopatologia , Atrofia Muscular/etiologia , Atrofia Muscular/fisiopatologia , Estado Nutricional , Prognóstico , Sarcopenia/etiologia
12.
Clin Nutr ; 39(5): 1379-1384, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-31371114

RESUMO

BACKGROUND & AIMS: Increased left ventricular mass (LVM) is often present in metabolic syndrome (MS), also in the setting of well-controlled blood pressure (BP). Aim of the present study was to evaluate the efficacy of a nutraceutical combination of berberine, red yeast rice extract and policosanol (Armolipid Plus™, AP) in reducing LVM in patients with MS and left ventricular hypertrophy (LVH). METHODS: In this multicenter, randomized, double-blind, placebo-controlled trial, 158 patients with MS (IDF criteria) and LVH (LVM > 48 g/m2.7 in men and > 44 g/m2.7 in women), were randomized 1:1 to receive AP or placebo for 24 weeks. Reduction of LVM, regression of LVH, and changes in lipids were analysed. RESULTS: One-hundred-and-forty-five patients (AP n = 74, placebo n = 71) completed the study. A significant percentage reduction in LVM was observed in AP group vs baseline (-2.7%, p < 0.0001), and compared to placebo (-4.1%, p < 0.0001), and remained significant after adjustment for age, sex, baseline systolic BP and BMI and their changes during the study period. The proportion of subjects showing LVM reduction was higher in AP group than in the placebo group (57% vs 28%, adjusted p = 0.007). Treatment with AP was associated with improvement of lipid profile. CONCLUSIONS: 24-week of treatment with AP is associated with a significant reduction in LVM in subjects with MS and LVH, in addition to favourable effects on lipid profile, and could represent an effective strategy aiming at reducing the associated cardiovascular risk. The trial was registered at clinicaltrials.gov with ID NCT02295176.


Assuntos
Suplementos Nutricionais , Ventrículos do Coração/patologia , Hipertrofia Ventricular Esquerda/dietoterapia , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
13.
Antioxid Redox Signal ; 31(15): 1166-1174, 2019 11 20.
Artigo em Inglês | MEDLINE | ID: mdl-31436110

RESUMO

Anthracyclines are widely used in anticancer protocols, but can induce cardiotoxicity by mechanisms that mainly involve oxidative damage and mitochondrial dysfunction. Radiotherapy (RT) can also impair cardiac function by promoting myocardial fibrosis, microvascular damage, and decreased density of myocardial capillaries. Hence, we aim at investigating prospectively whether RT impacts heart function in lymphoma patients who had been already treated with anthracyclines. Twenty-nine consecutive patients with Hodgkin or non-Hodgkin lymphomas underwent echocardiography at baseline (before antineoplastic treatments), and then every 2 months, until 6 months after treatment completion. Echo evaluation included standard two-dimensional and speckle tracking. Twenty-two patients treated with anthracycline-based regimens were eligible. Out of the 22 patients, 8 received chemotherapy (CT) only (subgroup 1), while 14 underwent RT after CT [subgroup 2 (S2)]. At the end of CT, ejection fraction was significantly reduced in the whole population. At 6 months after completion of therapies, E/E' increased and global longitudinal strain was compromised in S2, suggesting additional damage induced by RT after CT. On the basis of the data from our small prospective study, we can hypothesize that in lymphoma patients, anthracyclines can worsen cardiac function, and RT may have an additional unfavorable myocardial impact.


Assuntos
Antraciclinas/efeitos adversos , Antraciclinas/uso terapêutico , Antineoplásicos/efeitos adversos , Antineoplásicos/uso terapêutico , Linfoma/tratamento farmacológico , Linfoma/radioterapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Antibióticos Antineoplásicos/efeitos adversos , Antibióticos Antineoplásicos/uso terapêutico , Doxorrubicina/efeitos adversos , Doxorrubicina/uso terapêutico , Ecocardiografia , Feminino , Cardiopatias/diagnóstico , Cardiopatias/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Adulto Jovem
15.
Int J Mol Sci ; 20(9)2019 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-31052336

RESUMO

BACKGROUND AND AIM: Systemic lupus erythematosus (SLE) is associated with increased risk of cardiovascular disease (CVD). Among many mechanisms, accelerated atherosclerosis, endothelial dysfunction, and hypercoagulability play a main role. Here, we investigate whether inflammatory, serological and clinical markers of SLE determine and correlate with arterial stiffness in SLE patients. MATERIALS AND METHODS: Routine blood samples, inflammatory mediators, specific antibodies, and 24 h proteinuria were measured in 43 SLE patients and 43 age and sex-matched controls using routine laboratory assays. We also assessed arterial stiffness by measuring radial artery applanation tonometry-derived augmentation index (AI), normalized AI (AIx@75), aortic pulse pressure, central systolic, diastolic and peripheral blood pressure. RESULTS: SLE patients showed a significantly greater arterial stiffness vs. controls, as demonstrated by the significantly higher AIx@75 and aortic pulse pressure. Interestingly, regression analysis showed that age, systolic pulse pressure, inflammatory markers (erythrocyte sedimentation rate and C-reactive protein), daily dose of glucocorticoids, and cumulative organ damage positively correlated with arterial stiffness. CONCLUSIONS: SLE patients show increased arterial stiffness which correlates with markers of inflammation, that is involved in early alterations in arterial walls. Applanation tonometry can be used to screen SLE patients for subclinical vascular damage to implement prevention strategies for CVD.


Assuntos
Doenças Cardiovasculares/epidemiologia , Lúpus Eritematoso Sistêmico/complicações , Rigidez Vascular , Adulto , Biomarcadores/sangue , Pressão Sanguínea , Sedimentação Sanguínea , Proteína C-Reativa/análise , Doenças Cardiovasculares/sangue , Doenças Cardiovasculares/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
16.
Lipids Health Dis ; 18(1): 66, 2019 Mar 18.
Artigo em Inglês | MEDLINE | ID: mdl-30885221

RESUMO

BACKGROUND: Nutraceuticals represent a new therapeutic frontier in the treatment of metabolic syndrom (MetS) and related cardiovascular risk factors. The aim of this study was to evaluate the potential beneficial effects of Armolipid Plus (AP) (berberine 500 mg, red yest rice, monacolin K 3 mg and policosanol 10 mg) on insulin resistance, lipid profile, particularly on small and dense LDL cholesterol (sdLDL-C), representing the most atherogenic components, as well as its effects on high sensitivity C-reactive protein, a notable marker of cardiovascular risk, blood pressure and cardiac remodeling in subjects affected by MetS, with left ventricular hypertrophy. METHODS: The study was a prospective, multi-center, randomized, double blind, placebo-controlled trial. One hundred and fifty eight patients, aged between 28 and 76 years old, were enrolled and randomized to receive either one tablet of AP or placebo (PL) once daily for 24 weeks. Anthropometric and vital parameters, total cholesterol (tot-C), low-density lipoprotein cholesterol (LDL-C), high density lipoprotein cholesterol (HDL-C), triglyceridemia (TG), non-HDL cholesterol (NHDL-C) and sdLDL-C were evaluated. RESULTS: After 24 weeks of treatment, the analysis performed on 141 subjects (71 in AP arm and 70 in PL arm), showed a significant improvement of lipid profile in the AP group, with reduction in tot-C (- 13.2 mg/dl), LDL-C (- 13.9 mg/dl) and NHDL-C (- 15.3 mg/dl) and increase in HDL-C (+ 2.0 mg/dl). These changes were equally significant compared with placebo (tot-C: AP - 13.2 mg/dL vs PL + 2.7 mg/dL, p < 0.01; LDL-C: AP -13.9 mg/dl vs PL + 1.5 mg/dl, p < 0.01; NHDL-C: AP -15.3 mg/dl vs PL + 2.8 mg/dl, p < 0.01), Although no significant difference was observed between the two arms in the reduction of HDL-C nevertheless it increased significantly in the AP group (AP + 2 mg/dL p < 0.05, PL 0.13 mg/dL). CONCLUSION: The results of this study, applicable to a specific local population show that, in a population of subjects affected by MetS, treatment with AP improves the lipid profile and the most atherogenic factors, thus suggesting a reduction in the risk of development and progression of atherosclerosis, particularly in subjects with high atherogenic risk, due to the presence of sdLDL-C.


Assuntos
Suplementos Nutricionais , Metabolismo dos Lipídeos/efeitos dos fármacos , Síndrome Metabólica/dietoterapia , Adulto , Idoso , Berberina/uso terapêutico , LDL-Colesterol/sangue , Método Duplo-Cego , Álcoois Graxos/uso terapêutico , Feminino , Humanos , Hipertrofia Ventricular Esquerda/dietoterapia , Resistência à Insulina , Lovastatina/uso terapêutico , Masculino , Síndrome Metabólica/metabolismo , Pessoa de Meia-Idade , Placebos , Resultado do Tratamento
17.
Eur J Heart Fail ; 21(4): 519-528, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30843309

RESUMO

AIMS: Butyric acid (BUT), a short chain fatty acid produced daily by the gut microbiota, has proven beneficial in models of cardiovascular diseases. With advancements in cancer survival, an increasing number of patients are at risk of anticancer drug cardiotoxicity. Here we assess whether the novel BUT derivative phenylalanine-butyramide (FBA) protects from doxorubicin (DOXO) cardiotoxicity, by decreasing oxidative stress and improving mitochondrial function. METHODS AND RESULTS: In C57BL6 mice, DOXO produced left ventricular dilatation assessed by echocardiography. FBA prevented left ventricular dilatation, fibrosis and cardiomyocyte apoptosis when co-administered with DOXO. DOXO increased atrial natriuretic peptide, brain natriuretic peptide, connective tissue growth factor, and matrix metalloproteinase-2 mRNAs, which were not elevated on co-treatment with FBA. DOXO, but not FBA + DOXO mice, also showed higher nitrotyrosine levels, and increased inducible nitric oxide synthase expression. Accordingly, DOXO hearts showed lower levels of intracellular catalase vs. sham, while pre-treatment with FBA prevented this decrease. We then assessed for reactive oxygen species (ROS) emission: DOXO induced increased activity of mitochondrial superoxide dismutase and higher production of H2 O2 , which were blunted by FBA pre-treatment. FBA also ameliorated mitochondrial state 3 and state 4 respiration rates that were compromised by DOXO. Furthermore, in DOXO animals, the mitochondrial degree of coupling was significantly increased vs. sham, while FBA was able to prevent such increase, contributing to limit ROS production, Finally, FBA reduced DOXO damage in human cellular models, and increased the tumour-killing action of DOXO. CONCLUSIONS: Phenylalanine-butyramide protects against experimental doxorubicin cardiotoxicity. Such protection is accompanied by reduction in oxidative stress and amelioration of mitochondrial function.


Assuntos
Amidas/farmacologia , Doxorrubicina/efeitos adversos , Miócitos Cardíacos , Estresse Oxidativo/efeitos dos fármacos , Fenilalanina/farmacologia , Animais , Antibióticos Antineoplásicos/efeitos adversos , Antibióticos Antineoplásicos/farmacologia , Apoptose/efeitos dos fármacos , Butiratos/farmacologia , Ácido Butírico/metabolismo , Cardiotoxicidade/diagnóstico , Cardiotoxicidade/etiologia , Cardiotoxicidade/metabolismo , Cardiotoxicidade/prevenção & controle , Modelos Animais de Doenças , Doxorrubicina/farmacologia , Ecocardiografia/métodos , Camundongos , Camundongos Endogâmicos C57BL , Mitocôndrias/efeitos dos fármacos , Mitocôndrias/metabolismo , Miócitos Cardíacos/efeitos dos fármacos , Miócitos Cardíacos/metabolismo , Substâncias Protetoras/farmacologia , Resultado do Tratamento
19.
J Geriatr Phys Ther ; 42(3): 130-135, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-28786911

RESUMO

BACKGROUND AND PURPOSE: Sarcopenia, a loss of muscle mass and strength accompanying aging, is common in older adults who are not physically active. Nevertheless, the association between physical activity and sarcopenia has not been extensively studied. Therefore, we examined the relationship of both muscle mass and muscle strength with physical activity as quantified using the Physical Activity Scale for Elderly (PASE). METHODS: PASE score, muscle mass by bioimpendiometry, and muscle strength by handgrip were evaluated in a cohort study of 420 older adult participants (mean age 82.4 [5.9] years), admitted to the Comprehensive Geriatric Assessment Center. Sarcopenia was assessed as indicated in the European Working Group on Sarcopenia in Older People (EWGSOP) consensus. RESULTS: PASE score was lower in sarcopenic (40.2 [89.0]) than in non-sarcopenic (92.0 [52.4]) older adults (P < .001). Curvilinear regression analysis demonstrated that PASE score is related with muscle mass (R = 0.63; P < .001) and strength (R = 0.51; P < .001). CONCLUSIONS: The present study indicates that PASE score is curvilinearly related to muscle mass and strength and that low PASE score identifies sarcopenic noninstitutionalized older adults. This evidence suggests that PASE score evaluated together with muscle mass and strength may identify older adults at high risk of sarcopenia.


Assuntos
Exercício Físico/fisiologia , Força da Mão , Músculo Esquelético/patologia , Sarcopenia/patologia , Sarcopenia/fisiopatologia , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Impedância Elétrica , Teste de Esforço , Feminino , Avaliação Geriátrica , Humanos , Vida Independente , Masculino , Tamanho do Órgão
20.
Eur J Prev Cardiol ; 26(5): 481-488, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30066588

RESUMO

OBJECTIVES: The objective of this study was to evaluate the effect on mortality of self-reported physical activity evaluated by the physical activity scale for the elderly (PASE) in elderly patients with advanced heart failure enrolled in a cardiac rehabilitation unit after heart failure decompensation (NYHA class IIIB). METHODS: The study prospectively enrolled 314 elderly patients (≥65 years) with heart failure in NYHA class IIIB (symptomatic with a recent history of dyspnoea at rest) consecutively admitted to cardiac rehabilitation between January 2010 and July 2011. Comprehensive geriatric assessment was performed. Physical activity was evaluated by PASE and stratified in tertiles (0-15, 16-75 and >75). Mortality was collected from September to October 2015 in 300 patients. RESULTS: The mean age was 74.5 ± 6.1 (range 65-89); 74.7% were men, 132 patients (44.0%) died during the follow-up (44.1 ± 20.7 months). Univariate analysis shows that physical activity level conducted before heart failure decompensation was inversely related to mortality (from 76.0% to 8.2%, P = 0.000). Multivariate analysis confirms that the PASE score predicts mortality independently of several demographic and clinical variables (hazard rate 0.987, 95% confidence interval (CI) 0.980-0.994, P = 0.000). Notably, when considering PASE 0-15 versus 16-75 score and PASE 0-15 versus > 75 score, the hazard rate is 4.06 (95% CI 1.67-9.84, P < 0.001) and 7.25 (95% CI 2.7-19.5, P < 0.001), respectively. CONCLUSIONS: Physical activity level evaluated by the PASE score is inversely related to mortality in elderly patients with advanced heart failure confirming the reduction of mortality exerted by moderate physical activity in such patients.


Assuntos
Reabilitação Cardíaca/métodos , Terapia por Exercício , Exercício Físico , Insuficiência Cardíaca/reabilitação , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Reabilitação Cardíaca/efeitos adversos , Doença Crônica , Terapia por Exercício/efeitos adversos , Feminino , Avaliação Geriátrica , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/fisiopatologia , Humanos , Masculino , Estudos Prospectivos , Medição de Risco , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...