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1.
Prensa méd. argent ; 106(10): 575-587, 20200000. fig
Artigo em Espanhol | LILACS, BINACIS | ID: biblio-1362520

RESUMO

En diciembre de 2019 se descubrió un nuevo coronavirus, asociado a pacientes que sufrían un cuadro de neumonía en Hubei provincia de China, desde ese momento se estudia las características del virus, como también de la patología que produce. En los pacientes graves, se observó un estado proinflamatorio y procoagulante que provocó la disfunción multiorgánica, y, en muchos de ellos, la muerte. El objetivo de este trabajo consiste en describir la fisiopatología de la coagulopatía que esta infección, sorprendentemente, provoca. Es importante remarcar la relación que existe entre los estados inflamatorios y la cascada de la coagulación, cuyas disfunciones ocurren en situaciones de gravedad, como es la sepsis. El SARS-CoV-2 entrara a la célula mediante el receptor de la enzima convertidora de angiotensinógeno. En los estadios avanzados o críticos de la enfermedad, el estímulo hiperinflamatorio y el ambiente protrombótico provocarán un daño multiorgánico. El enfoque de los pacientes en estadios avanzados o críticos debe ser de soporte vital, junto a una terapia anticoagulante completa


In December 2019, a new coronavirus, SARS-CoV-2, was discovered in patients suffering from pneumonia. In critically ill patients, a proinflammatory and procoagulant state was observed: this led to multiorgan dysfunction, and, in many patients, to death. The objective of this work is to describe the pathophysiology of coagulopathy that this infection, surprisingly, causes. It is important to highlight the cross-talk between inflammation and coagulation in serious situations, such as sepsis. SARS-CoV-2 will enter the cell via the angiotensinogen converting enzyme receptor. In the advanced or critical stages of the disease, the hyperinflammatory stimulus and the prothrombotic environment will cause multi-organ damage. The approach of patients in advanced or critical stages should be life support, together with full anticoagulant therapy.


Assuntos
Humanos , Pneumonia/patologia , Trombose/prevenção & controle , Transtornos da Coagulação Sanguínea/fisiopatologia , SARS-CoV-2/imunologia , COVID-19/terapia , Imunidade/fisiologia
2.
Nutrients ; 12(10)2020 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-33076345

RESUMO

Metabolic Syndrome (MetS) is increasing worldwide regardless of culture, genetic, gender, and geographic differences. While multiple individual risk factors, such as obesity, hypertension, diabetes, and hyperlipidemia, can cause cardiovascular disease (CVD), it is the intercurrence of these risk factors that defines MetS as a cluster that creates an environment for atherosclerosis and other manifestations of CVD. Despite the advances in the knowledge and management of each of the components of MetS, there are two molecular biology processes, chronic inflammation and oxidative stress, which are still underdiagnosed and undertreated. In order to assess the effect of a dietary supplement on chronic inflammation in MetS, we conducted a clinical trial with volunteers receiving a formula composed of resveratrol, piperine and alpha tocopherol (FRAMINTROL®), together with their habitual treatment, for three months. The inflammatory state was evaluated by ultrasensitive C reactive protein (US CRP) and ferritin in plasma, and oxygen consumption and chemiluminescence in neutrophils. The results showed that ferritin decreased by 10% (p < 0.05), US-CRP by 33% (p < 0.0001), oxygen consumption by 55% (p < 0.0001), and spontaneous chemiluminiscence was by 25% (p < 0.005) after treatment. As far as we know, this is the first study showing a chronic inflammation decrease in MetS patients due to the administration of a biopower Resveratrol-piperine and alpha tocopherol dietary supplement together with conventional therapy.


Assuntos
Alcaloides/administração & dosagem , Benzodioxóis/administração & dosagem , Suplementos Nutricionais , Inflamação/terapia , Síndrome Metabólica/complicações , Piperidinas/administração & dosagem , Alcamidas Poli-Insaturadas/administração & dosagem , Resveratrol/administração & dosagem , alfa-Tocoferol/administração & dosagem , Idoso , Alcaloides/farmacologia , Benzodioxóis/farmacologia , Biomarcadores/análise , Biomarcadores/sangue , Proteína C-Reativa/análise , Doença Crônica , Feminino , Ferritinas/sangue , Humanos , Inflamação/diagnóstico , Inflamação/etiologia , Medições Luminescentes , Masculino , Pessoa de Meia-Idade , Neutrófilos , Estresse Oxidativo/efeitos dos fármacos , Consumo de Oxigênio , Piperidinas/farmacologia , Alcamidas Poli-Insaturadas/farmacologia , Resveratrol/farmacologia , Fatores de Tempo , alfa-Tocoferol/farmacologia
3.
Crit Rev Food Sci Nutr ; 59(8): 1237-1255, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-29206058

RESUMO

Resveratrol, (3, 5, 4'-trihydroxystilbene) is a non-flavonoid polyphenol stilbene synthesized by plants when damaged by infectious diseases or ionizing radiation. Although present in more than seventy plant species, grapes and wine are the major dietary contributors of resveratrol, responsible for 98% of the daily intake. In 1992, Renaud and De Lorgeril first linked wine polyphenols, including resveratrol, to the potential health benefits ascribed to regular and moderate wine consumption (the so called "French Paradox"). Since then, resveratrol has received increasing scientific interest, leading to research on its biological actions, and to a large number of published papers, which have been collected and discussed in this review. The relatively low amounts of resveratrol measured in wine following moderate consumption, however, may be insufficient to mitigate biological damage, such as that due to oxidative stress. On this basis, the authors also highlight the importance of viticulture and the winemaking process to enhance resveratrol concentrations in wine in order to bolster potential health benefits.


Assuntos
Resveratrol/química , Resveratrol/uso terapêutico , Vitis/química , Vinho/análise , Dieta , Suplementos Nutricionais , Humanos , Estresse Oxidativo , Doenças das Plantas , Polifenóis/farmacologia , Estilbenos
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