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1.
Int J Vitam Nutr Res ; 91(1-2): 77-86, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31726948

RESUMO

Vitamins and carotenoids are organic compounds that are important for vital functions of the human organism. Since the human body is not able to synthesize most of these micronutrients, they need to be supplied by the intake of food or supplements. The aim of this study was to analyze whether a whole food based, encapsulated fruit, berry, and vegetable juice powder concentrate provides bioavailable carotenoids and vitamins A (all-trans retinol), E and C. Eighteen healthy subjects received 6 capsules a day for 8 weeks, which provided 2.91 mg ß-carotene, 490 µg vitamin A, 18.7 mg vitamin E, 159 mg vitamin C, 6.1 mg lutein and 1 mg lycopene. Plasma concentrations of several carotenoids and vitamins before and after supplementation were measured. After 8 weeks of supplementation, the plasma concentration of the following carotenoids increased significantly: α-carotene increased from 59.6 ± 22.4 nmol/L to 85.7 ± 24.2 nmol/L (p = 0.002), ß-cryptoxanthin from 106.7 ± 39.8 nmol/L to 151.9 ± 57.9 nmol/L (p = 0.017), and lycopene from 1.2 ± 0.5 µmol/L to 1.7 ± 0.5 µmol/L (p = 0.005). Significant increases were also observed for plasma concentrations of vitamin C from 70 ± 20 µmol/L to 90 ± 10 µmol/L (p < 0.001), all-trans retinol from 1.99 ± 0.24 µmol/L to 2.30 ± 0.66 µmol/L (p = 0.015), and α-tocopherol from 27 ± 6 µmol/L to 32 ± 6 µmol/L (p = 0.008). For those micronutrients with accepted plasma reference ranges, all observed increases levelled off around the upper limit of the individual reference range. The data demonstrate that the investigated supplement is able to increase plasma concentrations of certain carotenoids and vitamins of healthy subjects within 8 weeks.


Assuntos
Verduras , Vitamina A , Carotenoides , Frutas , Humanos , Plasma , Pós , Vitaminas
2.
Int J Food Sci Nutr ; 71(6): 769-780, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32064970

RESUMO

The major aim of this controlled, randomised, open-labelled, parallel-grouped, clinical trial was to investigate whether supplementation with different dosages of omega-3 fatty acids (0.5 g/d and 1 g/d) from a plant-based fatty acid supplement affected omega-3-indices (O3I) in well-nourished, healthy people. In addition, the combined ingestion of the plant-based fatty acid supplement, together with an encapsulated fruit, vegetable and berry (FVB) juice powder concentrate, was applied in order to observe the absorption of certain micronutrients and to examine some aspects related to the safe consumption of the products. The data demonstrate that the intake of only 0.5 g/day of omega-3 fatty acids from of a vegan supplement was able to increase the O3I significantly after 8 and 16 weeks. The combined ingestion with the FVB supplement concurrently increased serum concentrations of specific vitamins and carotenoids without effects on hepatic, kidney and thyroid function or changes in blood lipids.


Assuntos
Suplementos Nutricionais , Ácido Eicosapentaenoico/sangue , Ácidos Graxos Ômega-3/administração & dosagem , Ácidos Graxos Insaturados/sangue , Micronutrientes/sangue , Fenômenos Fisiológicos da Nutrição , Extratos Vegetais/administração & dosagem , Adulto , Áustria , Disponibilidade Biológica , Cápsulas , Relação Dose-Resposta a Droga , Ácidos Graxos Ômega-3/farmacocinética , Feminino , Sucos de Frutas e Vegetais , Voluntários Saudáveis , Humanos , Masculino , Pessoa de Meia-Idade , Extratos Vegetais/farmacocinética , Pós
3.
Nutrients ; 9(3)2017 Feb 26.
Artigo em Inglês | MEDLINE | ID: mdl-28245627

RESUMO

The market of plant-based nutraceuticals and food supplements is continuously growing due to the increased consumer demand. The introduction of new products with relevant nutritional characteristics represents a new way of providing bioactive compounds and (poly)phenols to consumers, becoming a strategy to ideally guarantee the health benefits attributed to plant foodstuffs and allowing the increase of daily bioactive compound intake. A paramount step in the study of nutraceuticals is the evaluation of the bioavailability and metabolism of their putatively active components. Therefore, the aim of the present study was to investigate the absorption profile of the (poly)phenolic compounds contained in three different plant-based food supplements, made of 36 different plant matrices, which were consumed by 20 subjects in an open one-arm study design. Blood samples were collected at baseline and 1, 2, 5, and 10 h after capsule intake. Twenty quantifiable metabolites deriving from different (poly)phenolic compounds were identified. Results showed that the consumption of the three capsules allowed the effective absorption of several (poly)phenolic compounds and metabolites appearing at different times in plasma, thereby indicating different absorption profiles. The capsules thus ensured potential health-promoting molecules to be potentially available to target tissues and organs.


Assuntos
Suplementos Nutricionais , Frutas , Preparações de Plantas/administração & dosagem , Polifenóis/farmacocinética , Verduras , Adulto , Índice de Massa Corporal , Peso Corporal , Cápsulas , Feminino , Sucos de Frutas e Vegetais , Humanos , Masculino , Polifenóis/administração & dosagem , Adulto Jovem
4.
Medicines (Basel) ; 1(1): 12-21, 2014 Jul 16.
Artigo em Inglês | MEDLINE | ID: mdl-28933374

RESUMO

Acute skin surface temperature effects on the knee were investigated after a manual therapy developed by Mohamed Khalifa (RegentK) compared to standard physiotherapy in patients with completely ruptured anterior cruciate ligament (ACL). Twenty patients participated in this study. They were randomly assigned to group A (receiving RegentK) or group B (physiotherapy). Each group consisted of 10 patients. Temperature values were registered on four spots (three on the knee, one on the foot) of the injured and the healthy leg (control). Skin temperature increased significantly after RegentK on all sites of the injured leg, but after physiotherapy only the measurement spots on the knee showed significant increases. After RegentK the temperature had also increased significantly on the control leg, whereas in group B, the results were not significant. Experimental and clinical testing of technical equipment, e.g., infrared thermography, for ACL injuries is important for a better understanding of the different physiological/pathophysiological mechanisms underlying different therapy approaches.

5.
Medicines (Basel) ; 1(1): 22-31, 2014 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-28933375

RESUMO

Background: Within this study, a new system which measures and analyzes electrical skin impedance in 48 channels within a 2.5 × 3.5 cm matrix is used in rehabilitation medicine for the first time. Methods: Electrodermal activity was measured in 20 patients before and after two different non-surgical treatments of a completely ruptured anterior cruciate ligament. The first treatment, RegentK, was developed by Mohamed Khalifa, the second is a standard physiotherapy. Results: The patients in the two groups were age-matched, and all demographic data showed no significant differences. It was interesting that electrodermal activity was significantly decreased only after RegentK. Conclusion: We conclude that not only local effects of pressure application are responsible for these results, rather as yet unknown neurovegetative mechanisms have to be taken into consideration.

6.
Wien Med Wochenschr ; 161(23-24): 565-70, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21870142

RESUMO

Initially described as key regulators in metabolic bone disease osteoprotegerin (OPG), receptor activator of nuclear factor kappa B (RANK) and RANK ligand (RANKL) have also been discriminated as regulators in immunologic function. Cardiovascular diseases (CVD) develop over many years in life and are often triggered by inflammatory processes within the vessel wall that lead to vascular remodeling. Recently some study groups have described OPG as a prognostic parameter for mortality and morbidity in cardiovascular patients.


Assuntos
Doenças Cardiovasculares/fisiopatologia , Adulto , Fatores Etários , Idoso , Arteriosclerose/fisiopatologia , Densidade Óssea/fisiologia , Reabsorção Óssea/fisiopatologia , Doença das Coronárias/fisiopatologia , Feminino , Hormônios Esteroides Gonadais/sangue , Insuficiência Cardíaca/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Osteoclastos/fisiologia , Osteoporose/fisiopatologia , Osteoprotegerina , Prognóstico , Ligante RANK , Receptor Ativador de Fator Nuclear kappa-B , Fatores Sexuais , Disfunção Ventricular Esquerda/fisiopatologia , Adulto Jovem
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