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1.
CJC Open ; 6(2Part A): 133-138, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38585680

RESUMEN

Because of the COVID-19 pandemic, several health care services, including cardiac rehabilitation (CR), had to transition to virtual delivery, for which formal evaluations are lacking. In this pilot study, we investigated the implementation of a virtual CR program by surveying 30 patients attending virtual CR. Virtual CR was well received, although patients provided recommendations to improve delivery such as offering individual sessions and changing how education materials were delivered. Virtual delivery of CR likely has a role in health care, either independently or as part of a hybrid model; however, further evaluation is required.


En raison de la pandémie de COVID-19, plusieurs services de santé, comme la réadaptation cardiaque (RC), ont dû faire la transition vers le mode virtuel, pour lequel il manque d'évaluations formelles. Dans cette étude pilote, nous avons examiné la mise en œuvre d'un programme de RC virtuel en interrogeant 30 patients participant à un tel programme. La RC en mode virtuel a été accueillie favorablement, même si les patients ont formulé des recommandations pour en améliorer la prestation, comme offrir des séances individuelles et changer la façon dont le matériel éducatif est présenté. La prestation de la RC en mode virtuel a probablement un rôle à jouer dans les soins de santé, soit de manière indépendante, soit dans le cadre d'un modèle hybride; cependant, une évaluation plus poussée est requise.

2.
Nutrients ; 15(17)2023 Aug 23.
Artículo en Inglés | MEDLINE | ID: mdl-37686725

RESUMEN

BACKGROUND: Despite the growing recognition of the obesity crisis, its rates continue to rise. The current first-line therapies, such as dietary changes, energy restriction, and physical activity, are typically met with poor adherence. Novel nutritional interventions can address the root causes of obesity, including mitochondrial dysfunction, and facilitate weight loss. OBJECTIVE: The objective of this study was to investigate the effects of a multi-ingredient nutritional supplement designed to facilitate mitochondrial function and metabolic health outcomes over a 12 wk period. METHODS: Fifty-five overweight and/or obese participants (age (mean ± SEM): 26 ± 1; body mass index (BMI) (kg/m2): 30.5 ± 0.6) completed this double-blind, placebo-controlled clinical trial. Participants were randomized to 12 wks of daily consumption of multi-ingredient supplement (MIS; n = 28; containing 50 mg forskolin, 500 mg green coffee bean extract, 500 mg green tea extract, 500 mg beet root extract, 400 mg α-lipoic acid, 200 IU vitamin E, and 200 mg CoQ10) or control placebo (PLA, n = 27; containing microcrystalline cellulose) matched in appearance. The co-primary outcomes were bodyweight and fat mass (kg) changes. The secondary outcomes included other body composition measures, plasma markers of obesity, fatty liver disease biomarkers, resting energy metabolism, blood pressure, physical performance, and quality of life. The post-intervention differences between MIS and PLA were examined via ANCOVA which was adjusted for the respective pre-intervention variables. RESULTS: After adjustment for pre-intervention data, there was a significant difference in weight (p < 0.001) and fat mass (p < 0.001) post-intervention between the PLA and MIS treatment arms. Post-intervention weight and fat mass were significantly lower in MIS. Significant post-intervention differences corrected for baseline were found in markers of clinical biochemistry (AST, p = 0.017; ALT, p = 0.008), molecular metabolism (GDF15, p = 0.028), and extracellular vesicle-associated miRNA species miR-122 and miR-34a in MIS (p < 0.05). CONCLUSIONS: Following the 12 wks of MIS supplementation, weight and body composition significantly improved, concomitant with improvements in molecular markers of liver health and metabolism.


Asunto(s)
MicroARNs , Sobrepeso , Humanos , Calidad de Vida , Obesidad/tratamiento farmacológico , Composición Corporal , Suplementos Dietéticos , Antioxidantes , Poliésteres
3.
Nutrients ; 15(3)2023 Jan 25.
Artículo en Inglés | MEDLINE | ID: mdl-36771318

RESUMEN

The Western diet (WD) predisposes to bodyweight gain and obesity and is linked to mitochondrial dysfunction, oxidative damage, inflammation, and multisystem disease, even affecting the reproductive organs, fertility, and pregnancy outcomes. In this study, we investigated the effects of multi-ingredient supplementation (MIS) with antioxidants, phytonutrients, and vitamins ('Fertility Enhancer'; FE) on white adipose tissue (WAT) expansion, nonalcoholic fatty liver disease (NAFLD), and infertility in WD-fed C57BL/6J mice. Five-month-old male (M) and female (F) mice were fed a low-fat diet (LF) or a high fat/sucrose WD (HF) for six weeks, followed by six weeks of LF (3.64 kcal/g), HF (4.56 kcal/g), or HF combined with FE (4.50 kcal/g). A sub-set of animals were sacrificed at 12 weeks, while the remainder were harem-mated in a 1:2 male-to-female ratio, and singly housed during the gestational period. Two-way, factorial ANOVA analysis revealed a main effect of diet on bodyweight (BW), total body fat, % body fat, white adipose tissue mass, and liver lipid content (all p < 0.001), driven by the anti-obesogenic effects of the 'Fertility Enhancer'. Similarly, a main effect of diet was found on PGC1-α mRNA levels (p < 0.05) and mitochondrial protein content (p < 0.001) in perigonadal WAT, with PGC1-α induction and higher complex II and complex III expression in FE vs. HF animals. Copulatory plug counts were higher in FE vs. HE couples (30% vs. 6%), resulting in more litters (4 vs. 0) and higher copulatory success (67% vs. 0%). Although the trends of all histology outcomes were suggestive of a benefit from the FE diet, only the number of atretic follicles and testicular mass were significant. Ovarian IL-1ß mRNA induction was significantly attenuated in the FE group (p < 0.05 vs. HF) with CASP1 attenuation trending lower (p = 0.09 vs. HF), which is indicative of anti-inflammatory benefits of the 'Fertility Enhancer.' We conclude that supplementation with specific phytonutrients, antioxidants, and vitamins may have utility as an adjunctive therapy for weight management, fatty liver disease, and infertility in overweight and obese couples.


Asunto(s)
Infertilidad , Enfermedad del Hígado Graso no Alcohólico , Masculino , Femenino , Animales , Ratones , Dieta Occidental , Ratones Endogámicos C57BL , Obesidad/metabolismo , Peso Corporal , Dieta Alta en Grasa/efectos adversos , Suplementos Dietéticos , Enfermedad del Hígado Graso no Alcohólico/etiología , Enfermedad del Hígado Graso no Alcohólico/prevención & control , Vitaminas , ARN Mensajero/metabolismo
4.
Nutrients ; 13(11)2021 Oct 22.
Artículo en Inglés | MEDLINE | ID: mdl-34835983

RESUMEN

We investigated the effects of a novel multi-ingredient supplement comprised of polyphenol antioxidants and compounds known to facilitate mitochondrial function and metabolic enhancement (ME) in a mouse model of obesity. In this study, 6-week-old male C57/BL6J mice were placed on a high-fat diet (HFD; ~60% fat) for 6 weeks, with subsequent allocation into experimentalgroups for 4 weeks: HFD control, HFD + ME10 (10 components), HFD + ME7 (7 components), HFD + ME10 + EX, HFD + EX (where '+EX' animals exercised 3 days/week), and chow-fed control. After the intervention, HFD control animals had significantly greater body weight and fat mass. Despite the continuation of HFD, animals supplemented with multi-ingredient ME or who performed exercise training showed an attenuation of fat mass and preservation of lean body mass, which was further enhanced when combined (ME+EX). ME supplementation stimulated the upregulation of white and brown adipose tissue mRNA transcripts associated with mitochondrial biogenesis, browning, fatty acid transport, and fat metabolism. In WAT depots, this was mirrored by mitochodrial oxidative phosphorylation (OXPHOS) protein expression, and increased in vivo fat oxidation measured via CLAMS. ME supplementation also decreased systemic and local inflammation markers. Herein, we demonstrated that novel multi-ingredient nutritional supplements induced significant fat loss independent of physical activity while preserving muscle mass in obese mice. Mechanistically, these MEs appear to act by inducing a browning program in white adipose tissue and decreasing other pathophysiological impairments associated with obesity, including mitochondrial respiration alterations induced by HFD.


Asunto(s)
Tejido Adiposo Pardo/fisiología , Tejido Adiposo Blanco/fisiología , Dieta Alta en Grasa , Suplementos Dietéticos , Conducta Alimentaria , Aumento de Peso/fisiología , Animales , Antioxidantes/metabolismo , Biomarcadores/metabolismo , Circulación Sanguínea , Respiración de la Célula , Epidídimo/metabolismo , Metabolismo de los Lípidos/genética , Masculino , Ratones Endogámicos C57BL , Mitocondrias/metabolismo , Proteínas Mitocondriales/metabolismo , Biogénesis de Organelos , Oxidación-Reducción , Fosforilación Oxidativa , Fosforilación , Condicionamiento Físico Animal , ARN Mensajero/genética , ARN Mensajero/metabolismo , Superóxido Dismutasa/metabolismo , Regulación hacia Arriba , Pérdida de Peso
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