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1.
Int J Mol Sci ; 25(9)2024 Apr 28.
Artigo em Inglês | MEDLINE | ID: mdl-38732029

RESUMO

Neointimal hyperplasia is the main cause of vascular graft failure in the medium term. Vitamin D receptor activation modulates the biology of vascular smooth muscle cells and has been reported to protect from neointimal hyperplasia following endothelial injury. However, the molecular mechanisms are poorly understood. We have now explored the impact of the selective vitamin D receptor activator, paricalcitol, on neointimal hyperplasia, following guidewire-induced endothelial cell injury in rats, and we have assessed the impact of paricalcitol or vehicle on the expression of key cell stress factors. Guidewire-induced endothelial cell injury caused neointimal hyperplasia and luminal stenosis and upregulated the expression of the growth factor growth/differentiation factor-15 (GDF-15), the cytokine receptor CD74, NFκB-inducing kinase (NIK, an upstream regulator of the proinflammatory transcription factor NFκB) and the chemokine monocyte chemoattractant protein-1 (MCP-1/CCL2). Immunohistochemistry confirmed the increased expression of the cellular proteins CD74 and NIK. Paricalcitol (administered in doses of 750 ng/kg of body weight, every other day) had a non-significant impact on neointimal hyperplasia and luminal stenosis. However, it significantly decreased GDF-15, CD74, NIK and MCP-1/CCL2 mRNA expression, which in paricalcitol-injured arteries remained within the levels found in control vehicle sham arteries. In conclusion, paricalcitol had a dramatic effect, suppressing the stress response to guidewire-induced endothelial cell injury, despite a limited impact on neointimal hyperplasia and luminal stenosis. This observation identifies novel molecular targets of paricalcitol in the vascular system, whose differential expression cannot be justified as a consequence of improved tissue injury.


Assuntos
Anti-Inflamatórios , Quimiocina CCL2 , Ergocalciferóis , Hiperplasia , Animais , Ratos , Ergocalciferóis/farmacologia , Masculino , Quimiocina CCL2/metabolismo , Quimiocina CCL2/genética , Anti-Inflamatórios/farmacologia , Neointima/metabolismo , Neointima/patologia , Neointima/tratamento farmacológico , Fator 15 de Diferenciação de Crescimento/metabolismo , Fator 15 de Diferenciação de Crescimento/genética , Túnica Íntima/patologia , Túnica Íntima/efeitos dos fármacos , Túnica Íntima/metabolismo , Antígenos de Diferenciação de Linfócitos B/metabolismo , Antígenos de Diferenciação de Linfócitos B/genética , Células Endoteliais/metabolismo , Células Endoteliais/efeitos dos fármacos , Antígenos de Histocompatibilidade Classe II
2.
J Vasc Surg Cases Innov Tech ; 6(3): 483-486, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32838094

RESUMO

Acute aortic occlusion is an infrequent disease but with significant mortality. The new pandemic of the SARS-CoV-2 coronavirus disease (COVID-19) represents a great challenge for health systems. This contagious disease is generating high infection and mortality rates in several countries. It is speculated that the inflammatory process accompanying the infection is triggered by massive macrophage activation and is associated with the development of coagulopathy. We present three cases of COVID-19 patients, treated in our hospital during a period of 2 weeks, who presented with an acute thrombosis of the infrarenal abdominal aorta.

3.
Semergen ; 43(4): 295-311, 2017.
Artigo em Espanhol | MEDLINE | ID: mdl-28532894

RESUMO

The VI European Guidelines for Cardiovascular Prevention recommend combining population and high-risk strategies with lifestyle changes as a cornerstone of prevention, and propose the SCORE function to quantify cardiovascular risk. The guidelines highlight disease specific interventions, and conditions as women, young people and ethnic minorities. Screening for subclinical atherosclerosis with noninvasive imaging techniques is not recommended. The guidelines distinguish four risk levels (very high, high, moderate and low) with therapeutic objectives for lipid control according to risk. Diabetes mellitus confers a high risk, except for subjects with type 2 diabetes with less than <10 years of evolution, without other risk factors or complications, or type 1 diabetes of short evolution without complications. The decision to start pharmacological treatment of arterial hypertension will depend on the blood pressure level and the cardiovascular risk, taking into account the lesion of target organs. The guidelines don't recommend antiplatelet drugs in primary prevention because of the increased bleeding risk. The low adherence to the medication requires simplified therapeutic regimes and to identify and combat its causes. The guidelines highlight the responsibility of health professionals to take an active role in advocating evidence-based interventions at the population level, and propose effective interventions, at individual and population level, to promote a healthy diet, the practice of physical activity, the cessation of smoking and the protection against alcohol abuse.


Assuntos
Doenças Cardiovasculares/prevenção & controle , Estilo de Vida , Guias de Prática Clínica como Assunto , Doenças Cardiovasculares/etiologia , Europa (Continente) , Pessoal de Saúde/organização & administração , Humanos , Adesão à Medicação , Prevenção Primária/métodos , Papel Profissional , Fatores de Risco , Espanha
4.
Gac Sanit ; 31(3): 255-268, 2017.
Artigo em Espanhol | MEDLINE | ID: mdl-28292529

RESUMO

The VI European Guidelines for Cardiovascular Prevention recommend combining population and high-risk strategies with lifestyle changes as a cornerstone of prevention, and propose the SCORE function to quantify cardiovascular risk. The guidelines highlight disease specific interventions, and conditions as women, young people and ethnic minorities. Screening for subclinical atherosclerosis with noninvasive imaging techniques is not recommended. The guidelines distinguish four risk levels (very high, high, moderate and low) with therapeutic objectives for lipid control according to risk. Diabetes mellitus confers a high risk, except for subjects with type 2 diabetes with less than <10 years of evolution, without other risk factors or complications, or type 1 diabetes of short evolution without complications. The decision to start pharmacological treatment of arterial hypertension will depend on the blood pressure level and the cardiovascular risk, taking into account the lesion of target organs. The guidelines don't recommend antiplatelet drugs in primary prevention because of the increased bleeding risk. The low adherence to the medication requires simplified therapeutic regimes and to identify and combat its causes. The guidelines highlight the responsibility of health professionals to take an active role in advocating evidence-based interventions at the population level, and propose effective interventions, at individual and population level, to promote a healthy diet, the practice of physical activity, the cessation of smoking and the protection against alcohol abuse.


Assuntos
Doenças Cardiovasculares/prevenção & controle , Estilo de Vida , Guias de Prática Clínica como Assunto , Medição de Risco , Fatores Etários , Biomarcadores/análise , Doenças Cardiovasculares/epidemiologia , Europa (Continente) , Feminino , Promoção da Saúde , Humanos , Masculino , Programas de Rastreamento , Cooperação do Paciente , Papel do Médico , Fatores de Risco , Espanha
5.
Rev Esp Salud Publica ; 90: e1-e24, 2016 Nov 24.
Artigo em Espanhol | MEDLINE | ID: mdl-27880755

RESUMO

The VI European Guidelines for Cardiovascular Prevention recommend combining population and high-risk strategies with lifestyle changes as a cornerstone of prevention, and propose the SCORE function to quantify cardiovascular risk. The guidelines highlight disease specific interventions, and conditions as women, young people and ethnic minorities. Screening for subclinical atherosclerosis with noninvasive imaging techniques is not recommended. The guidelines distinguish four risk levels (very high, high, moderate and low) with therapeutic objectives for lipid control according to risk. Diabetes mellitus confers a high risk, except for subjects with type 2 diabetes with less than 10 years of evolution, without other risk factors or complications, or type 1 diabetes of short evolution without complications. The decision to start pharmacological treatment of arterial hypertension will depend on the blood pressure level and the cardiovascular risk, taking into account the lesion of target organs. The guidelines don't recommend antiplatelet drugs in primary prevention because of the increased bleeding risk. The low adherence to the medication requires simplified therapeutic regimes and to identify and combat its causes. The guidelines highlight the responsibility of health professionals to take an active role in advocating evidence-based interventions at the population level, and propose effective interventions, at individual and population level, to promote a healthy diet, the practice of physical activity, the cessation of smoking and the protection against alcohol abuse.


Assuntos
Doenças Cardiovasculares/prevenção & controle , Doenças Cardiovasculares/diagnóstico , Doenças Cardiovasculares/etiologia , Terapia Combinada , Europa (Continente) , Feminino , Promoção da Saúde/métodos , Humanos , Masculino , Medição de Risco , Fatores de Risco , Espanha
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