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1.
Ann Med Surg (Lond) ; 85(7): 3482-3490, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37427217

RESUMO

The present study aimed to evaluate the effects a cardiac rehabilitation program (CRP) performed in the morning or evening on left ventricular (LV) filling indices and the level of N-terminal fragment of pro-brain natriuretic peptide (NT-proBNP) in patients undergoing percutaneous coronary angioplasty during the COVID-19 pandemic. Methods: This was a randomized controlled single-blinded clinical trial. Ninety-six patients (mean age: 50.2 ± 8.1 years, 36 women and 44 men) with percutaneous coronary angioplasty were divided into two groups of intervention and control. In each group, the CRP was performed in either morning or evening. The CRP included walking and performing push-ups and sit-ups for 8 weeks. The participants of the control groups received routine care. The functional indices of LV, including LV ejection fraction, systolic function, and diastolic function (i.e. the transmitral flow), the E/e' to left atrium peak strain ratio (as an estimation for LA stiffness), and NT-proBNP level were measured in all participants before starting and at the end of the CRP. Results: In the intervention group, the individuals performing the CRP in the evening had significantly higher E-wave (0.76±0.02 vs. 0.75±0.03; P=0.008), ejection fraction (52.5±5.64 vs. 55.5±3.59; P=0.011), and diastolic function velocity (E/A ratio, 1.03±0.06 vs. 1.05±0.03; P=0.014) and significantly lower A-wave (0.72±0.02 vs. 0.71±0.01; P=0.041), E/e' ratio (6.74±0.29 vs. 6.51±0.38; P=0.038), and NT-proBNP level (2007.9±214.24 vs. 1933.9±253.13; P=0.045) compared with those performing the program in the morning. Conclusions: A supervised CRP performed in the evening compared with morning was more effective in improving LV functional indices. Therefore, such home-based interventions are recommended to be performed in the evening during the COVID-19 pandemic.

2.
ARYA Atheroscler ; 18(1): 1-9, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36818148

RESUMO

BACKGROUND: It seems that the time of performing cardiac rehabilitation is important in determining the risk of cardiac complications in patients with myocardial infarction (MI). The present study aimed to investigate the effects of a home-based cardiac rehabilitation program (HCRP) conducted in either the morning or evening on cardiometabolic risk factors in phase IV (maintenance) MI patients. METHODS: In this randomized controlled clinical trial, 80 patients with MI were divided into 2 groups of intervention and control (40 individuals per group). Patients in each group were categorized into morning and evening subgroups (20 individuals per subgroup). The therapeutic regimen in the intervention group included HCRP, routine medications, and exercise and walking programs for 8 weeks. Patients in the control group received routine treatments for 8 weeks. Cardiovascular risk factors comprising of cardiac troponin I (cTnI), mean platelet volume (MPV), C-reactive protein (CRP), and cardiometabolic indicators including cholesterol (Cho), high-density lipoprotein (HDL), low-density lipoprotein (LDL), triglyceride (TG), and the maximum rate of oxygen consumption (VO2 max) were measured for all patients before and after the intervention. RESULTS: Our results showed significant reductions in Cho, TG, HDL, LDL, VO2 max, CRP, and MPV (P < 0.05) in the group performing HCRP in the evening compared with the morning group. CONCLUSION: Performing HCRP in the evening, compared with morning, can be significantly more effective in improving the levels of cardiometabolic risk factors in patients with MI. Therefore, it is recommended that rehabilitation programs be implemented in these patients in evening shifts.

3.
Ann Med Surg (Lond) ; 72: 103146, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34925825

RESUMO

BACKGROUND: Peripheral artery disease (PAD) is a cardiovascular disease that is characterized by obstruction of peripheral artery. It is associated with comorbidities, reduced quality of life and mortality. The aim of this study was to determine the frequency of recurrence of PAD among patients who underwent angioplasty or stenting and associated risk factors. METHODS: In this retrospective study, all patients referred to the cardiovascular center of (XXX) with the diagnosis of lower extremity PAD were included. Patients' demographic information, age, gender, smoking status, history of diabetes, history of hypertension, dyslipidemia, number of vessels, type of stent, recurrence of the disease, and size of the lesion were obtained from the hospital database. Endovascular revascularization therapy was either performed by angioplasty or stenting method. The data were analyzed by SPSS v21. RESULTS: Of 88 patients included in this study, 12.5% were reported with restenosis. Gender, age, size of the lesion, the status of smoking, history of hypertension, and dyslipidemia were not significantly associated with the recurrence of stenosis, p > 0.05. There was a significant relationship between the vessels involved and the type of revascularization method and the recurrence of the PAD. CONCLUSION: Endovascular revascularization technique and type of vessel involved in PAD are significant factors contributing to restenosis in our population of study. However, further studies with a greater sample size are required in this area.

4.
Rev. colomb. cardiol ; 28(2): 128-135, mar.-abr. 2021. tab, graf
Artigo em Inglês | LILACS, COLNAL | ID: biblio-1341274

RESUMO

Abstract Background: cardiac rehabilitation is a structured program to prevent secondary cardiovascular diseases. Objective: to investigate and compare the effectiveness of home-based cardiac rehabilitation program (HBCRP) on improving cardiovascular stress indices in men and women who had experienced myocardial infarction (MI). Methods: in this randomized controlled clinical trial, 80 patients with MI were divided into two groups of intervention and control (n = 40 per group). Analyses were erformed separately in females and males in the both groups. The HBCRP included receiving routine medications along with walking for 8 weeks. The control group only received the routine care along with counseling about having adequate physical activity. Cardiovascular stress indicators including heart rate at rest (HRrest), maximum heart rate (HRmax), recovery heart rate (RHR)at 1 and 2 minutes after the exercise test (i.e. RHR1 and RHR2), systolic and diastolic blood pressures at rest (SBPR and DBPR), and rate pressure product (RPP) were measured by a researcher blinded to the intervention before and after the test. Results: the results showed significant reductions in RHR1 (p<0.001), RHR2 (p<0.01), SBPR (p<0.01), DBPR (p<0.01), and RPP (p<0.001) in both males and females in the intervention group. A significant increase was also observed in HRmax (p<0.001) in the intervention group. However, there were no significant differences in HRmax and other variables comparing per- and post-experiment values in the control group. Conclusion: our results showed that 8 weeks of HBCRP sex-independently reduced cardiovascular stress indices in both men and women with MI.


Resumen Antecedentes: la rehabilitación cardíaca es un programa estructurado para prevenir las enfermedades cardiovasculares secundarias. Objetivo: estudiar y comparar la efectividad de un programa de rehabilitación cardíaca en casa (HBCRP, por sus siglas en inglés) en la mejoría de los índices de estrés cardiovascular en hombres y mujeres que habían sufrido un infarto de miocardio (IM). Métodos: en este ensayo clínico controlado aleatorizado, 80 pacientes con IM se dividieron en dos grupos de intervención y control (n = 40 en cada grupo). Se realizaron análisis por separado en mujeres y hombres en ambos grupos. El HBCRP incluía la administración de medicamentos de rutina junto con caminatas por 8 semanas. El grupo de control solo recibió tratamiento de rutina junto con orientación acerca de la realización de actividad física adecuada. Un investigador cegado a la intervención midió los indicadores de estrés cardiovascular incluyendo frecuencia cardíaca en reposo (FCrep), frecuencia cardíaca máxima (FCmax), recuperación de la frecuencia cardíaca (RFC) 1 y 2 minutos después de la prueba de ejercicio (i.e. RFC1 y RFC2), tensión arterial sistólica y diastólica en reposo (TASR y TADR) y producto frecuencia-presión (PFP), antes y después de la prueba. Resultados: los resultados mostraron una reducción significativa en RFC1 (p<0.001), RFC2 (p<0.01), TASR (p<0.01), TADR (p<0.01), y PFP (p<0.001), tanto en hombres como en mujeres del grupo de intervención. También se observó un aumento significativo en FCmax (p<0.001) en el grupo de intervención. Sin embargo, no hubo diferencias significativas en FCmax y otros variables al comparar los valores pre- y post-experimentales en el grupo control. Conclusión: nuestros resultados mostraron que 8 semanas de HBCRP redujeron los índices de estrés cardiovascular independientemente del sexo, tanto en hombres como en mujeres con IM.


Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Reabilitação Cardíaca , Estresse Fisiológico , Infarto do Miocárdio
5.
Clin Nutr Res ; 9(4): 307-317, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33204670

RESUMO

Coronary artery disease (CAD) is among the main causes of death in adults. Increase of oxidative stress and defects in antioxidant defense play a major role in endothelium performance and are affecting factors in the progress of atherosclerosis. The aim of this study was to measure serum levels of uric acid (UA) and vitamin C as well as the antioxidant status in patients with CAD, and compared them with those in healthy individuals. The present case-control study was performed on 44 cases and 44 controls. Demographic data and anthropometric indices were measured. The Food Frequency Questionnaire (FFQ) and International Physical Activity Questionnaire (IPAQ) were completed. After 12 hours of fasting,10 mL blood was sampled from the participants. Serum levels of UA, vitamin C, Total Antioxidant Capacity (TAC) and Malondialdehyde (MDA) were also measured. The data were finally analyzed by SPSS v22. A significant difference was observed between the groups in terms of UA and vitamin C. However, mean levels of MDA and TAC were not significantly different between groups. The differences between groups in terms of vitamin A, vitamin E, beta-carotene, zinc and selenium intakes were not significant either. A significant difference was detected between the groups in terms of vitamin C intake. Our results suggest that increase in UA and decrease in vitamin C in serum levels can be considered as risk factors for CAD patients. Due to a lack of any significant correlation between TAC and CAD risk in this study, further study with bigger sample size is needed.

6.
J Vasc Nurs ; 36(4): 181-185, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30458939

RESUMO

Cardiovascular disease is among the most important disorders in the developed world and the main cause of death and disability in all countries considered. Using coronary stent in cardiovascular patients, as an effective treatment, has greatly reduced the requirement for cardiac surgery. The study was carried out to explore lived experiences of patients living with coronary stents.The qualitative phenomenological study was performed to explore lived experiences of patient with coronary stent. The participants (11 patients) were selected purposively. Data were collected through individual semistructured in-depth interviews. The interviews were analyzed according to Colaizzi's seven-stage method. Authenticity is demonstrated using Lincoln and Guba's 4 criteria. The mean age of participant was 49.6 ± 11 years. The researcher obtained as many as 577 codes from patients' statements, and by merging or removing duplicated codes, they were decreased to 217 codes. The analysis of data collected on the cardiovascular patients living with stents showed some basic issues such as concern about future and social anxiety, which constitute the basic theme of anxiety. Basic issues such as lack of knowledge and supporting needs led to the major theme of feeling of necessity, and major issues such as body deformation and lifestyle change resulted in major theme of change. In conclusion, the result showed that an important step to fixing the problems is reducing concerns, increasing the level of awareness, and satisfying the needs (physical and mental). For improving patient's health, the rehab and care programs may modify patients' problems.


Assuntos
Adaptação Psicológica/fisiologia , Ansiedade/psicologia , Doenças Cardiovasculares/terapia , Vasos Coronários/cirurgia , Stents , Feminino , Humanos , Entrevistas como Assunto , Masculino , Pessoa de Meia-Idade , Pesquisa Qualitativa , Qualidade de Vida
7.
Phytother Res ; 32(10): 1983-1991, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29917280

RESUMO

Cinnamomum zeylanicum (cinnamon) is a plant with potent antioxidant activity and has been used in traditional medicine for improvement of heart function. The effects of cinnamon bark ethanolic extract were investigated against ischemia-induced arrhythmias and heart injury in an in vivo rat model of regional heart ischemia. The extract was also standardized, and its antioxidant activity was evaluated. Adult male Sprague-Dawley rats were subjected to 30 min of ischemia by occlusion of the left anterior descending coronary artery followed by 5 days of reperfusion. Thirty-two animals were randomized to receive daily oral administration of vehicle or C. zeylanicum bark extract (intragastric, 50, 100, or 200 mg/kg) 14 days before ischemia. C. zeylanicum was standardized through HPLC analysis. Administration of cinnamon bark extract significantly improved ischemia/reperfusion-induced myocardial injury as evidenced by reduction of the infarct size. Also, during the ischemic period, ventricular tachycardia and ventricular ectopic beats episodes decreased as compared with that of the control group. The extract stabilized the ST segment changes and QTc shortening, decreased R-wave amplitude, and increased heart rate during ischemia. The extract also caused significant elevations in serum superoxide dismutase and glutation proxidase activities as well as a significant decrease in serum cardiac troponin I, lactate dehydrogenase, and malondialdehyde levels, 5 days after reperfusion. In HPLC analysis, the amounts of Cinamic acid, Methyl eugenol, and Cinnamaldehyde were 8.99 ± 0.5, 13.02 ± 1.8, and 14.63 ± 1.1 mg/g, respectively. The results show that the ethanolic extract of cinnamon bark is able to protect the heart against ischemia-reperfusion injury probably due to its antioxidant properties. Hence, it might be beneficial in these patients and this remedy might be used for preparation of new drugs.


Assuntos
Arritmias Cardíacas/tratamento farmacológico , Cinnamomum zeylanicum/química , Traumatismo por Reperfusão Miocárdica/tratamento farmacológico , Extratos Vegetais/farmacologia , Animais , Antioxidantes/farmacologia , Coração/efeitos dos fármacos , L-Lactato Desidrogenase/sangue , Masculino , Malondialdeído/sangue , Miocárdio , Casca de Planta/química , Substâncias Protetoras/farmacologia , Ratos , Ratos Sprague-Dawley , Superóxido Dismutase/sangue , Troponina I/sangue
8.
IET Nanobiotechnol ; 11(5): 493-500, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28745279

RESUMO

The search for an optimal aortic valve implant with durability, calcification resistance, excellent haemodynamic parameters and ability to withstand mechanical loading is yet to be met. Thus, there has been struggled to fabricate bio-prosthetics heart valve using bioengineering. The consequential product must be resilient with suitable mechanical features, biocompatible and possess the capacity to grow. Defective heart valves replacement by surgery is now common, this improves the value and survival of life for a lot of patients. The recent paediatric heart valve implant is suboptimal due to their inability of somatic growth. They usually have multiple surgeries to change outgrown valves. Short-lived valve bio-prostheses occurring in older patients and younger ones who more usually need the replacement of its damaged heart with prosthesis led to a new invasive surgical interventions with an improved quality of life. The authors propose that nanofibre scaffold for paediatric tissue-engineered heart valve will meet most of these conditions, most particularly those related to somatic growth, and, as the nanofibre scaffold is eroded, new valve is produced, the valve matures in the child until adulthood.


Assuntos
Bioprótese , Próteses Valvulares Cardíacas , Nanofibras , Materiais Biocompatíveis , Criança , Crescimento , Humanos , Alicerces Teciduais
10.
J Microencapsul ; 34(4): 335-341, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28406043

RESUMO

Cardioprotective effect of N, α-L-rhamnopyranosyl vincosamide (VR), isolated from the leaves of Moringa oleifera plant in doxorubicin (Dox)-induced cardiac toxicity rats was evaluated. Twelve (12) rats were randomly selected into three groups; two rats received distilled water in the control group, five rats in group I received varying concentration of VR treatment, and group II containing five rats received varying concentration of VR-loaded magnetic hydrogel nanocomposite. Malondialdehyde (MDA), glutathione peroxidase (GSH) and superoxide dismutase (SOD) enzymes activities level were analysed after two weeks. In addition, the expression of three heart failure markers; beta major histocompatibility complex (ß-MHC), atrial natriuretic peptide (ANP), and B type natriuretic peptide (BNP) were also evaluated. It was observed that the level of these markers expression decreases with an increase in VR concentration (p < 0.05). The reduced GSH and SOD level were increased after VR administration, this extract also reduced the initially increased MDA level in cardiac tissue. Pharmacokinetic parameters evaluation showed that nanogel treated rats possesses a significantly increased VR plasma concentration, Cmax, Kel, t½(a), t½(el), Ka and AUC. The result of this study indicated that VR may help to lower the dosage level, and reduces the treatment course in cardiovascular diseases (CVD). Our conclusion proposes the cardio-protective ability of the isolated VR and its beneficial effect via free radical scavenging properties.


Assuntos
Antioxidantes/farmacologia , Cardiotônicos/farmacologia , Hidrogéis/química , Alcaloides Indólicos/farmacologia , Animais , Cardiotoxicidade , Doxorrubicina/efeitos adversos , Nanopartículas de Magnetita/química , Moringa oleifera/química , Nanocompostos/química , Folhas de Planta/química , Ratos
11.
J Microencapsul ; 34(2): 132-139, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28264603

RESUMO

Cardiac failure occurs when heart is unable to pump sufficiently to maintain blood flow to meet the body's needs. The aim of this work is to detect highly expressed genes: follistatin-related protein 1 (FSTL1) in heart failure within 30 minutes, using gold nanoparticles. Gold nanoparticles were prepared by citrate reduction of HAuCl4 3H2O; probe sequence was designed based on the FSTL1 gene region. Preparation of gold nanoprobes (AuNPs) proceeded by treating all the containers with DEPC-treated water, followed by reduction and conjugation. Transmission electron microscopy shows that AuNPs were 10-15 nm in size. The concentration of the nanoprobes was 2.1 nM, and they bind to target. Real-time PCR shows an over-expression of FSTL1 and FSTL3 in heart failure (p < .05). Our data showed that elevated expression of the FSTL1 and FSTL3 is a marker of heart failure as detected within 30 minutes by the synthesised AuNPs; the method is accurate and fast.


Assuntos
Proteínas Relacionadas à Folistatina/metabolismo , Insuficiência Cardíaca/diagnóstico , Nanopartículas Metálicas , Ouro , Humanos , Reação em Cadeia da Polimerase em Tempo Real
12.
Artif Cells Nanomed Biotechnol ; 45(6): 1-7, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28272903

RESUMO

Magnetic nanoparticles (NPs) also have been subject of interest to the therapeutic and imaging field because of their unique magnetic properties. Magnetoliposomes (MLs) are made up of a combination of liposomes and magnetic NPs, and they have been proven to be a potential biomaterial to fields like magnetic-targeted drug delivery, MRI, etc. The efficiency of a drug delivery system to the heart determines the treatment strategy for most of the heart diseases. In this review article, we summarize the recent development and updates in the application of MLs as a drug delivery system for heart/cardiac diseases.


Assuntos
Meios de Contraste/uso terapêutico , Cardiopatias/diagnóstico por imagem , Cardiopatias/tratamento farmacológico , Imageamento por Ressonância Magnética/métodos , Nanopartículas de Magnetita/uso terapêutico , Animais , Meios de Contraste/química , Cardiopatias/metabolismo , Cardiopatias/patologia , Humanos , Lipossomos , Nanopartículas de Magnetita/química
13.
Biomed Pharmacother ; 87: 37-45, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-28040596

RESUMO

Myocardial infarction has been reported to be responsible for about 7.3 million deaths each year globally. Present treatments for myocardial infarction have been more palliative rather than curative. Over the past few years, stem cells have demonstrated its potency in regenerating damaged cardiac tissue, especially after myocardial infarction. However, limited short half-life of the protein and cell therapy and low transplanted cell survival rate as demonstrated via several clinical trials have lead to development of more potent and novel delivery systems like biomaterial delivery system and the use of various growth factors. In this review, we will be enumerating and discussing the recent advances in cardiac regeneration with focus on stem cell, biomaterial and growth factors.


Assuntos
Materiais Biocompatíveis/administração & dosagem , Cardiopatias/terapia , Peptídeos e Proteínas de Sinalização Intercelular/administração & dosagem , Miócitos Cardíacos/fisiologia , Regeneração/fisiologia , Transplante de Células-Tronco/tendências , Animais , Diferenciação Celular/efeitos dos fármacos , Diferenciação Celular/fisiologia , Cardiopatias/patologia , Humanos , Miocárdio/citologia , Miocárdio/patologia , Miócitos Cardíacos/efeitos dos fármacos , Miócitos Cardíacos/patologia , Regeneração/efeitos dos fármacos , Células-Tronco/citologia , Células-Tronco/fisiologia
14.
Biomed Pharmacother ; 87: 321-331, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28064105

RESUMO

Herbal medicines have been routinely employed all over the world dated back from the ancient time and have been identified by patients and physicians for their excellent therapeutic value as they have lower adverse effects when compared with the modern medicines. Phytotherapeutics requires a scientific technique to deliver the active herbal extract in a controlled manner to avoid repeated administration and increase patient compliance. This can be reached by fabricating a novel drug delivery systems (NDDS) for herbal components. NDDSs does not only decrease the repeated dose to overcome ineffectiveness, but also help to increase potency by decreasing toxicity and elevating drug bioavailability. Nano-sized DDS of herbal drugs have a potential application for improving the activity and countering the problems related to herbal medicines. Hence, application of nanocarriers as an NDDS in the traditional herbal medicine system is important to treat more chronic diseases like infectious endocarditis.


Assuntos
Anti-Infecciosos/administração & dosagem , Sistemas de Liberação de Medicamentos/métodos , Endocardite/tratamento farmacológico , Medicina Herbária/métodos , Nanopartículas/administração & dosagem , Animais , Anti-Infecciosos/metabolismo , Endocardite/metabolismo , Humanos , Nanopartículas/metabolismo , Resultado do Tratamento
15.
Artif Cells Nanomed Biotechnol ; 45(4): 731-739, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27924631

RESUMO

Curcumin, is a yellow substance extracted from Curcuma longa rhizomes, it is a crystalline compound that has been traditionally applied in culinary practices and medicines in India. The aim of our study is to demonstrate the efficacy of curcumin-loaded magnetic hydrogel nanocomposite in the treatment of heart hypertrophy. 10 rats weighing 150-200 g each were induced with heart failure using 2.5 mg/kg doxorubicin for 2 weeks. The test groups were treated with curcumin-loaded magnetic hydrogel nanocomposite while the control was treated with curcumin alone. malondialdehyde (MDA) levels, superoxide dismutase (SOD), and glutathione peroxidase (GPX) enzymes activities were monitored after two weeks of last the dose. In addition, the expression of three heart failure markers; atrial natriuretic peptide (ANP), B type natriuretic peptide (BNP), and beta major histocompatibility complex (ß-MHC) were observed, it was found that the expression of these markers decreases with an increase in the concentration of curcumin (P < 0.05). Curcumin elevated the decreased level of GPX and SOD, and reduced the elevated level of MDA in cardiac tissue. We suggest this combination to be a potent therapy for heart failure and hypertension in the nearest future.


Assuntos
Curcumina/química , Curcumina/farmacologia , Doxorrubicina/toxicidade , Hidrogéis/química , Imãs/química , Miócitos Cardíacos/efeitos dos fármacos , Nanocompostos , Animais , Fator Natriurético Atrial/genética , Biomarcadores/metabolismo , Cardiotônicos/química , Cardiotônicos/farmacologia , Catalase/metabolismo , Linhagem Celular , Regulação da Expressão Gênica/efeitos dos fármacos , Antígenos de Histocompatibilidade/genética , Masculino , Malondialdeído/metabolismo , Miócitos Cardíacos/citologia , Miócitos Cardíacos/metabolismo , Peptídeo Natriurético Encefálico/genética , Estresse Oxidativo/efeitos dos fármacos , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Ratos , Superóxido Dismutase/metabolismo
16.
Biomed Pharmacother ; 84: 1163-1171, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27780147

RESUMO

Congenital heart disease (CHD) is the most prevalent congenital anomaly in newborn babies. Cardiac malformations have been induced in different animal model experiments, by perturbing some molecules that take part in the developmental pathways associated with myocyte differentiation, specification, or cardiac morphogenesis. The exact epigenetic, environmental, or genetic, basis for these molecules perturbations is yet to be understood. But, scientist have bridged this gap by introducing autologous stem cell into the defective hearts to treat CHD. The choice of stem cells to use has also raised an issue. In this review, we explore different stem cells that have been recently used, as an update into the pool of this knowledge and we suggested the future perspective into the choice of stem cells to control this disease. We propose that isolating mesenchymal stem cells from neonate will give a robust heart regeneration as compared to adults. This source are easily isolated. To unveil stem cell therapy beyond its possibility and safety, further study is required, including largescale randomized, and clinical trials to certify the efficacy of stem cell therapy.


Assuntos
Cardiopatias Congênitas/cirurgia , Regeneração , Transplante de Células-Tronco/métodos , Células-Tronco/fisiologia , Animais , Linhagem da Célula , Difusão de Inovações , Cardiopatias Congênitas/patologia , Cardiopatias Congênitas/fisiopatologia , Humanos , Fenótipo , Transplante de Células-Tronco/efeitos adversos , Resultado do Tratamento
17.
Biomed Pharmacother ; 84: 1179-1188, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27780149

RESUMO

Heart valves are currently under thorough investigation in tissue engineering (TE) research. Mechanical and biological heart valve prostheses which are recently used have several shortcomings. While allogenic and xenogenic biological prostheses are related to graft rejection, degeneration and thrombosis, resulting in a high rate of reoperation. Mechanical prostheses on the other hand are based on metallic, carbon, and polymeric components, and require continuous treatment with anticoagulant, which result in adverse reactions, e.g. endocarditis and thromboembolic complications. Therefore, there has been efforts to synthesize bioartificial heart valve using bioengineering. The resulting product must be durable with appropriate mechanical properties, biocompatible, and have the ability to grow. Diseased heart valves replacement by surgery is now common, this enhances quality of life and survival for many patients. The center of attraction of recent methods in regenerative medicine are based on the restoration of pathologically altered tissue architectures by cells transplantation in combination with supportive scaffolds, and growth factors. We propose that nanofiber scaffold for paediatric Tissue Engineered Heart Valve (TEHV) will meet most of these requirements, particularly those related to somatic growth, in addition, as the nanofiber scaffold is eroded and new valve is formed, the valve develops in the child until adulthood.


Assuntos
Bioengenharia/métodos , Próteses Valvulares Cardíacas , Nanofibras/química , Pediatria/métodos , Criança , Humanos , Polímeros/farmacologia , Alicerces Teciduais/química
18.
ARYA Atheroscler ; 12(4): 201-205, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28149317

RESUMO

BACKGROUND: Several common metabolic risk factors contribute to development of both non-alcoholic fatty liver disease (NAFLD) and coronary artery disease (CAD). The aim was to determine prevalence of NAFLD in patients with CAD. METHODS: This prospective study was carried out from December 2011 to June 2012. All patients with documented diagnosis of CAD with stenosis of one of the main coronary arteries or their branches were included in the study. Ultrasound examination of liver was performed in all patients to diagnose hepatic steatosis. Accordingly, the severity of steatosis was graded from 0 (absence of steatosis) to 3 (severe steatosis). Finally, prevalence of NAFLD was determined in the studied patients. RESULTS: Among 170 patients with CAD included in the study, 63 and 17 had grade 1 and 2 hepatic steatosis in ultrasound examination, respectively, providing prevalence of 47% in studied population. There was no significant difference between patients with NAFLD and those without NAFLD regarding gender (P = 0.120), presence of diabetes mellitus (P = 0.270), hyperlipidemia (P = 0.210) and hypertension (P = 0.870). There was no association between involvement of left anterior descending artery and hepatic steatosis (P = 0.870). CONCLUSION: The present study indicated a high prevalence of NAFLD in patients with documented CAD.

19.
Arch Gynecol Obstet ; 292(2): 321-5, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25666481

RESUMO

PURPOSE: Artificial rupture of amniotic membranes (amniotomy) which induces or accelerates labor is the most common obstetrical procedure. There is controversy about the effect of early amniotomy on dystocia and cesarean delivery. The study aim was to determine the effect of early amniotomy on the risk of dystocia and cesarean delivery in nulliparous women. METHODS: This randomized controlled clinical trial was conducted on 300 nulliparous women. They were randomly assigned into the experimental (early amniotomy; artificial amniotomy at cervical dilation ≤ 4 cm) and control (routine management) groups (each 150 women). Length of labor, dystocia, cesarean delivery, placental abruption, and umbilical cord prolapse were compared between the groups. RESULTS: Early amniotomy shortened labor duration significantly in experimental group (7.5 ± 0.7 h) compared to control group (9.9 ± 1.0 h) (P < 0.001). Dystocia (6.7 vs. 25.3 %, P < 0.0001), cesarean delivery (11.3 vs. 39.3 %, P < 0.001), and placental abruption (4.7 vs. 13.3 %, P = 0.009) were significantly lower in experimental group compared to the control group. Multiple logistic regression showed that early amniotomy decreased the odds of dystocia 80.6 % (95 % CI 58.6-90.1 %) and the odds of cesarean section 81.7 % (95 % CI 66.2-90.1 %). CONCLUSION: Early amniotomy was associated with lower rate of dystocia and cesarean delivery as well as shorter duration of labor.


Assuntos
Âmnio/cirurgia , Cesárea/estatística & dados numéricos , Distocia/epidemiologia , Trabalho de Parto Induzido/efeitos adversos , Trabalho de Parto , Adulto , Feminino , Humanos , Irã (Geográfico)/epidemiologia , Primeira Fase do Trabalho de Parto , Trabalho de Parto Induzido/métodos , Modelos Logísticos , Paridade , Gravidez , Resultado da Gravidez , Fatores de Tempo
20.
J Tehran Heart Cent ; 9(2): 70-5, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25861322

RESUMO

BACKGROUND: Diagnosis of coronary artery disease (CAD) in early stages is vital in decreasing mortality by reducing the risk factors. The aim of this study was to investigate the association between erectile dysfunction (ED) and CAD. METHODS: A total of 200 patients were divided into four groups according to their angiography results: Group 1 (G1, n = 59): patients with one-vessel disease (1-VD); Group 2 (G2, n = 40): patients with two-vessel disease (2-VD); Group 3 (G3, n = 50): patients with three-vessel disease (3-VD); and controls (C, n = 51) without any coronary disease. The International Index of Erectile Function (IIEF) was completed for all the patients to assess their sexual function and ED in the last 6 months. RESULTS: Mean age of the participants was 57.69 ± 12.466 years. The prevalence of ED in the CAD patients was significantly higher than that of the controls (75.16% vs. 60.8%; p value = 0.041). There was a significant direct correlation between the number of involved vessels in the CAD patients and ED severity (r: 0.183; p value = 0.010), and the ED rate increased with age. CONCLUSION: In conclusion, ED severity correlated with the number of involved vessels documented by coronary angiography. Consequently, ED may be considered a possible marker for the development of atherosclerosis and CAD.

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