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1.
Plants (Basel) ; 12(12)2023 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-37375955

RESUMEN

BACKGROUND: Oral cancer has a high prevalence worldwide, and this disease is caused by genetic, immunological, and environmental factors. The main risk factors associated with oral cancer are smoking and alcohol. RESULTS: There are various strategies to reduce risk factors, including prevention programs as well as the consumption of an adequate diet that includes phytochemical compounds derived from cranberries (Vaccinium macrocarpon A.) and blueberries (Vaccinium corymbosum L.); these compounds exhibit antitumor properties. RESULTS: The main outcome of this review is as follows: the properties of phytochemicals derived from cranberries were evaluated for protection against risk factors associated with oral cancer. CONCLUSIONS: The secondary metabolites of cranberries promote biological effects that provide protection against smoking and alcoholism. An alternative for the prevention of oral cancer can be the consumption of these cranberries and blueberries.

2.
Antioxidants (Basel) ; 12(6)2023 May 30.
Artículo en Inglés | MEDLINE | ID: mdl-37371912

RESUMEN

Cardiometabolic conditions are closely associated with inflammation and oxidative stress. Dietary berries may serve as a beneficial nutrition intervention to address the features of cardiometabolic dysfunction and associated oxidative stress. The high antioxidant status of dietary berries may increase antioxidant capacity and reduce biomarkers of oxidative stress. This systematic review was conducted to investigate these effects of dietary berries. The search was conducted using PubMed, Cochrane Library, Web of Science, and citation searching. Through this search we identified 6309 articles and 54 were included in the review. Each study's risk of bias was assessed using the 2019 Cochrane Methods' Risk of Bias 2 tool. Antioxidant and oxidative stress outcomes were evaluated, and the magnitude of effect was calculated using Cohen's d. A range of effectiveness was reported in the included studies and the quality of the studies differed between the parallel and crossover trials. Considering the inconsistency in reported effectiveness, future investigations are warranted to determine the acute and sustained reductions of oxidative stress biomarkers from dietary berry intake (PROSPERO registration# CRD42022374654).

3.
J Agric Food Chem ; 70(49): 15560-15569, 2022 Dec 14.
Artículo en Inglés | MEDLINE | ID: mdl-36455288

RESUMEN

Collagens in the human skin are susceptible to glycation due to their long half-life of about 15 years, accumulating advanced glycation end products (AGEs). The formation of AGEs and the subsequent AGE-induced collagen crosslinking are major factors for skin aging. The objective of this study was to determine the capacity of cranberry juice polyphenols (CJPs) and their fractions to inhibit collagen glycation and to break AGE-induced crosslinks in collagens. Concentrated cranberry juice was extracted to obtain the CJP, which was further fractionated into an ethyl acetate fraction, water fraction, 30% methanol (MeOH) fraction, 60% MeOH fraction, MeOH fraction, and acetone fraction. CJPs and their fractions contained different ratios of anthocyanins, procyanidins, and flavonols. All the fractions significantly inhibited collagen glycation assessed with the collagen-methylglyoxal (MGO) or collagen-dehydroascorbic acid (DHAA) assays. The ethyl acetate fraction and 60% MeOH had the lowest IC50 values in the collagen-MGO and collagen-DHAA assays. The methanol fraction (IC50 = 0.52 µg/mL) and acetone fraction (IC50 = 0.019 mg/mL) had the lowest IC50 values in the inhibition and breakage of AGE-induced collagen crosslinking, respectively. The ethyl acetate fraction significantly scavenged the highest amount of MGO and DHAA after incubation compared to the other fractions. Results suggested that procyanidins were the most effective antiglycation agent in both collagen glycation assays, followed by flavonols and anthocyanins. High-performance liquid chromatography-electrospray ionization─tandem mass spectrometry showed that the reactions of DHAA with quercetin or epicatechin formed several adducts with unreported proposed structures. This study suggested that CJPs may be used as active ingredients in cosmetics to prevent skin collagen glycation and crosslinking and to break the formed crosslinks.


Asunto(s)
Proantocianidinas , Vaccinium macrocarpon , Humanos , Proantocianidinas/farmacología , Polifenoles , Vaccinium macrocarpon/química , Productos Finales de Glicación Avanzada/química , Antocianinas , Metanol , Acetona , Óxido de Magnesio , Piruvaldehído/química , Colágeno/química , Flavonoles
4.
EFSA J ; 19(9): e06835, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-34531929

RESUMEN

In accordance with Article 6 of Regulation (EC) No 396/2005, the Federal Public Service (FPS) Health, Food chain Safety and Environment submitted a request on behalf of Belgium (evaluating Member State, EMS) to modify the existing maximum residue levels (MRLs) for the active substance proquinazid in blueberries and cranberries. The data submitted in support of the request were found to be sufficient to derive MRL proposals for blueberries and cranberries. Adequate analytical methods for enforcement are available to control the residues of proquinazid in the commodities under consideration at the validated limit of quantification (LOQ) of 0.01 mg/kg. Based on the risk assessment results, EFSA concluded that the short-term and long-term intake of residues resulting from the use of proquinazid according to the reported agricultural practices is unlikely to present a risk to consumer health.

5.
Nutrients ; 13(2)2021 Jan 27.
Artículo en Inglés | MEDLINE | ID: mdl-33513929

RESUMEN

Increased blood pressure (BP), vascular dysfunction and inflammation are involved in the etiology of cardiovascular disease (CVD). Although several dietary components such as polyphenols and L-citrulline may help to control BP, their combined impact on ambulatory BP in individuals at risk of CVD remains unknown. The objective of this research was to investigate the short-term impact of supplementation with a combination of polyphenol extract and L-citrulline on ambulatory BP, endothelial function and inflammation. In a randomized double-blind parallel trial, 73 men and women with prehypertension were supplemented with a placebo (cellulose, n = 34, Plac) or 548 mg/day of polyphenols and 2 g/day of L-citrulline (n = 35, Suppl) for 6 weeks. The primary outcome of this study was the difference between groups in 24-h ambulatory diastolic BP (DBP) at week six. Secondary outcomes were a difference between groups at week six in ambulatory systolic BP (SBP), casual BP, serum lipids and high-sensitivity C-reactive protein (hs-CRP) concentrations and skin advanced glycation end products (AGEs). Potential interaction of treatment with sex was examined. Suppl had no impact on mean ambulatory SBP and DBP (p > 0.10 vs. placebo). Daytime and 24-h SBP were reduced with Suppl in women (p ≤ 0.01), but not in men (p ≥ 0.27). A non-significant reduction in AGEs was observed after Suppl compared to Plac among all participants (p = 0.07) and there was no difference in the concentrations of blood lipids (p > 0.20) or CRP (p = 0.36) between treatments at week six. Therefore, supplementation with polyphenol extract and L-citrulline for 6 weeks has no impact on ambulatory BP, blood lipids and CRP in adults with prehypertension. However, the polyphenol extract/L-citrulline supplement may reduce ambulatory SBP in women, but not in men. These preliminary results need further research efforts towards further documenting this sex-dependent BP response to supplementation with polyphenols and L-citrulline.


Asunto(s)
Monitoreo Ambulatorio de la Presión Arterial , Citrulina/farmacología , Extractos Vegetales/farmacología , Polifenoles/farmacología , Prehipertensión/tratamiento farmacológico , Adolescente , Adulto , Anciano , Presión Sanguínea/efectos de los fármacos , Dieta , Registros de Dieta , Suplementos Dietéticos , Método Doble Ciego , Ejercicio Físico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Adulto Joven
6.
Br J Nutr ; 126(2): 183-190, 2021 07 28.
Artículo en Inglés | MEDLINE | ID: mdl-33059793

RESUMEN

Lipid metabolism and inflammation contribute to CVD development. This study investigated whether the consumption of cranberries (CR; Vaccinium macrocarpon) can alter HDL metabolism and prevent inflammation in mice expressing human apo A-I transgene (hApoAITg), which have similar HDL profiles to those of humans. Male hApoAITg mice were fed a modified American Institute of Nutrition-93M high-fat/high-cholesterol diet (16 % fat, 0·25 % cholesterol, w/w; n 15) or the high-fat/high-cholesterol diet containing CR (5 % dried CR powder, w/w, n 16) for 8 weeks. There were no significant differences in body weight between the groups. Serum total cholesterol, non-HDL-cholesterol and TAG concentrations were significantly lower in the control than CR group with no significant differences in serum HDL-cholesterol and apoA-I. Mice fed CR showed significantly lower serum lecithin-cholesterol acyltransferase activity than the control. Liver weight and steatosis were not significantly different between the groups, but hepatic expression of genes involved in cholesterol metabolism was significantly lower in the CR group. In the epididymal white adipose tissue (eWAT), the CR group showed higher weights with decreased expression of genes for lipogenesis and fatty acid oxidation. The mRNA abundance of F4/80, a macrophage marker and the numbers of crown-like structures were less in the CR group. In the soleus muscle, the CR group also demonstrated higher expression of genes for fatty acid ß-oxidation and mitochondrial biogenesis than those of the control. In conclusion, although CR consumption elicited minor effects on HDL metabolism, it prevented obesity-induced inflammation in eWAT with concomitant alterations in soleus muscle energy metabolism.


Asunto(s)
Frutas , Hipercolesterolemia , Hiperlipidemias , Metabolismo de los Lípidos , Vaccinium macrocarpon , Animales , Apolipoproteína A-I/genética , Colesterol en la Dieta/administración & dosificación , Dieta Alta en Grasa , Ácidos Grasos/metabolismo , Humanos , Hipercolesterolemia/metabolismo , Hiperlipidemias/metabolismo , Inflamación/metabolismo , Hígado/metabolismo , Masculino , Ratones , Ratones Endogámicos C57BL , Ratones Transgénicos , Extractos Vegetales/metabolismo
7.
Foods ; 9(5)2020 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-32369958

RESUMEN

There is little research on how product matrix and processing affect phenolic compounds in sweetened dried cranberries over time. The objective of this research was to assess polyphenol content and stability in sweetened dried cranberries between product matrix types. This research assessed five commercially available sweetened dried cranberry matrices: (1) sliced apple juice infused, (2) whole apple juice infused, (3) sliced sucrose infused, (4) whole sucrose infused, and (5) sliced soluble corn fiber, glycerin, sucrose, and sucralose infused (three replicates/treatment). Proanthocyanidins, anthocyanins (HPLC), total phenolic content (Folin-Ciocalteu), water activity, moisture content, color, and texture were evaluated over 12 months at 21 °C. Data were analyzed by ANOVA (p < 0.05). Results demonstrate that sweetened dried cranberry polyphenols are unstable regardless of product matrix. More research is needed to determine optimal processing parameters for sweetened dried cranberries to maintain polyphenol stability as healthier food options for consumers.

8.
Br J Nutr ; 124(6): 577-585, 2020 09 28.
Artículo en Inglés | MEDLINE | ID: mdl-32301407

RESUMEN

Cranberries are high in polyphenols, and epidemiological studies have shown that a high-polyphenol diet may reduce risk factors for diabetes and CVD. The present study aimed to determine if short-term cranberry beverage consumption would improve insulin sensitivity and other cardiovascular risk factors. Thirty-five individuals with obesity and with elevated fasting glucose or impaired glucose tolerance participated in a randomised, double-blind, placebo-controlled, parallel-designed pilot trial. Participants consumed 450 ml of low-energy cranberry beverage or placebo daily for 8 weeks. Changes in insulin sensitivity and cardiovascular risk factors including vascular reactivity, blood pressure, RMR, glucose tolerance, lipid profiles and oxidative stress biomarkers were evaluated. Change in insulin sensitivity via hyperinsulinaemic-euglycaemic clamp was not different between the two groups. Levels of 8-isoprostane (biomarker of lipid peroxidation) decreased in the cranberry group but increased in the placebo group (-2·18 v. +20·81 pg/ml; P = 0·02). When stratified by baseline C-reactive protein (CRP) levels, participants with high CRP levels (>4 mg/l) benefited more from cranberry consumption. In this group, significant differences in the mean change from baseline between the cranberry (n 10) and the placebo groups (n 7) in levels of TAG (-13·75 v. +10·32 %; P = 0·04), nitrate (+3·26 v. -6·28 µmol/l; P = 0·02) and 8-isoprostane (+0·32 v. +30·8 pg/ml; P = 0·05) were observed. These findings indicate that 8 weeks of daily cranberry beverage consumption may not impact insulin sensitivity but may be helpful in lowering TAG and changing certain oxidative stress biomarkers in individuals with obesity and a proinflammatory state.


Asunto(s)
Bebidas , Enfermedades Cardiovasculares/prevención & control , Resistencia a la Insulina , Obesidad/complicaciones , Vaccinium macrocarpon , Adulto , Enfermedades Cardiovasculares/complicaciones , Enfermedades Cardiovasculares/epidemiología , Método Doble Ciego , Femenino , Prueba de Tolerancia a la Glucosa , Humanos , Insulina/sangre , Masculino , Persona de Mediana Edad , Proyectos Piloto , Placebos , Factores de Riesgo
9.
Mol Nutr Food Res ; 64(11): e1901242, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32281738

RESUMEN

SCOPE: Methods to verify cranberry juice consumption are lacking. Predictive multivariate models built upon validated biomarkers may help to verify human consumption of a food using a nutrimetabolomics approach. METHODS: A 21-day double-blinded, randomized, placebo-controlled, cross-over study was conducted among healthy young women aged 1829. Plasma was collected at baseline and after 3-day and 21-day consumption of cranberry or placebo juice. Plasma metabolome was analyzed using UHPLC coupled with high resolution mass spectrometry. RESULTS: 18 discriminant metabolites in positive mode and 18 discriminant metabolites in negative mode from a previous 3-day open-label study were re-discovered in the present blinded study. Predictive orthogonal partial least squares discriminant analysis (OPLS-DA) models were able to identify cranberry juice consumers over a placebo juice group with 96.9% correction rates after 3-day consumption in both positive and negative mode. This present study revealed 84 and 109 additional discriminant metabolites in positive and negative mode, respectively. Twelve of them were tentatively identified. CONCLUSION: Cranberry juice consumers were classified with high correction rates using predictive OPLS-DA models built upon validated plasma biomarkers. Additional biomarkers were tentatively identified. These OPLS-DA models and biomarkers provided an objective approach to verify participant compliance in future clinical trials.


Asunto(s)
Biomarcadores/sangre , Jugos de Frutas y Vegetales , Vaccinium macrocarpon , Adulto , Cromatografía Líquida de Alta Presión/métodos , Estudios Cruzados , Análisis Discriminante , Método Doble Ciego , Femenino , Humanos , Análisis de los Mínimos Cuadrados , Espectrometría de Masas/métodos , Modelos Biológicos , Placebos , Adulto Joven
10.
J Sci Food Agric ; 100(14): 5111-5116, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-29315597

RESUMEN

Cranberries contain various types of bioactive components. Scientists have been studying cranberries' beneficial effects on urinary tract health since the 20th century. In the 21st century, the protection provided by cranberry phytochemicals against cancer and vascular diseases has drawn more attention from researchers. Anthocyanins, procyanidins, and flavonols in cranberries were all documented to have potential effects on cancer prevention. The cardiometabolic effects of cranberries have been investigated in several clinical trials. It was found that cranberries positively affect atherosclerotic cholesterol profiles and that they reduced several cardiometabolic risk factors. Nowadays, growing evidence suggests other important roles of cranberries in maintaining digestive health. Cranberry juice or cranberries have been shown to inhibit the colonization of H. pylori in stomach, and protect against intestinal inflammation. For future research, clinical trials with improved study design are urgently needed to demonstrate cranberries' benefits on urinary tract health and cardiometabolic diseases. Hypothesis-driven studies using animals or cell culture are needed to elucidate the mechanisms of cranberries' effects on digestive health. © 2018 Society of Chemical Industry.


Asunto(s)
Vaccinium macrocarpon/química , Vaccinium macrocarpon/metabolismo , Animales , Frutas/química , Frutas/metabolismo , Humanos , Fitoquímicos/química , Fitoquímicos/metabolismo , Fitoquímicos/farmacología , Fitoterapia , Extractos Vegetales/química , Extractos Vegetales/metabolismo , Extractos Vegetales/farmacología , Estados Unidos
11.
Insects ; 10(12)2019 Nov 25.
Artículo en Inglés | MEDLINE | ID: mdl-31775223

RESUMEN

Methyl salicylate (MeSA) is an herbivore-induced plant volatile (HIPV) known to attract the natural enemies of herbivores in agro-ecosystems; however, whether this attraction leads to an increase in natural enemy functioning, i.e., predation, remains largely unknown. Here, we monitored for 2 years (2011-2012) the response of herbivores and natural enemies to MeSA lures (PredaLure) by using sticky and pitfall traps in cranberry bogs. In addition, European corn borer, Ostrinia nubilalis, egg masses were used to determine whether natural enemy attraction to MeSA leads to higher predation. In both years, MeSA increased adult hoverfly captures on sticky traps and augmented predation of O. nubilalis eggs. However, MeSA also attracted more phytophagous thrips and, in 2012, more plant bugs (Miridae) to sticky traps. Furthermore, we used surveillance cameras to record the identity of natural enemies attracted to MeSA and measure their predation rate. Video recordings showed that MeSA lures increase visitation by adult lady beetles, adult hoverflies, and predatory mites to sentinel eggs, and predation of these eggs doubled compared to no-lure controls. Our data indicate that MeSA lures increase predator attraction, resulting in increased predation; thus, we provide evidence that attraction to HIPVs can increase natural enemy functioning in an agro-ecosystem.

12.
Foods ; 8(8)2019 Jul 24.
Artículo en Inglés | MEDLINE | ID: mdl-31344943

RESUMEN

The aim of this study was to investigate the effect of a pretreatment, performed by a combined method based on blanching, ultrasound, and vacuum application, on the kinetics of osmotic dehydration and selected quality properties such as water activity, color, and bioactive compound (polyphenols, flavonoids, and anthocyanins) content. The pretreatment was carried out using blanching, reduced pressure, and ultrasound (20 min, 21 kHz) in various combinations: Blanching at reduced pressure treatment conducted three times for 10 min in osmotic solution; blanching with reduced pressure for 10 min and sonicated for 20 min in osmotic solution; and blanching with 20 min of sonication and 10 min of reduced pressure. The osmotic dehydration was performed in different solutions (61.5% sucrose and 30% sucrose with the addition of 0.1% of steviol glycosides) to ensure the acceptable taste of the final product. The changes caused by the pretreatment affected the osmotic dehydration process by improving the efficiency of the process. The use of combined pretreatment led to an increase of dry matter from 9.3% to 28.4%, and soluble solids content from 21.2% to 41.5%, lightness around 17.3% to 56.9%, as well as to the reduction of bioactive compounds concentration until even 39.2% in comparison to the blanched sample not subjected to combined treatment. The osmotic dehydration caused further changes in all investigated properties.

13.
Food Chem ; 299: 125122, 2019 Nov 30.
Artículo en Inglés | MEDLINE | ID: mdl-31288165

RESUMEN

To ease the mass exchange in fruit tissues, cutting and blanching are traditionally performed. However, recently, unconventional methods such as sonication are becoming more popular, which cause several alterations of physical and chemical properties as well as microstructure changes. The aim of this work was to evaluate the distribution of water inside the cranberry fruits, microstructural changes and sugars content, following traditional and sonication pre-treatments in osmotic solutions. TD-NMR spectroscopy was used to measure the transverse relaxation time (T2) and intensity of proton pools in different cellular compartments. The microstructure of the samples was evaluated by SEM microscopy, sugars content by HPLC and sucrose melting temperature and enthalpy by DSC. Different pre-treatments appeared to promote microstructure alterations and loss of water from vacuole and cytoplasm/extracellular space, more pronounced in cut and blanched samples. Cutting and blanching followed by osmotic dehydration with assisted sonication eased sucrose penetration into the tissue.


Asunto(s)
Conservación de Alimentos/métodos , Frutas/química , Azúcares/análisis , Vaccinium macrocarpon/química , Agua/metabolismo , Rastreo Diferencial de Calorimetría , Desecación , Frutas/ultraestructura , Espectroscopía de Resonancia Magnética , Microscopía Electrónica de Rastreo , Ósmosis , Sonicación , Sacarosa/análisis , Temperatura , Vaccinium macrocarpon/ultraestructura
14.
Anticancer Agents Med Chem ; 19(14): 1672-1686, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31272361

RESUMEN

Studies have shown that cranberry and its components may exert anticancer properties. The present study aims to critically summarise the existing experimental studies evaluating the potential effects of cranberry on cancer prevention and treatment. PubMed database was searched to identify relevant studies. Current in vitro studies have indicated that cranberry and/or its components may act as chemopreventive agents, diminishing the risk for cancer by inhibiting cells oxidation and inflammatory-related processes, while they may also exert chemotherapeutic effects by inhibiting cell proliferation and angiogenesis, inducing cell apoptosis and attenuating the ability of tumour cells to invade and metastasis. Limited in vivo studies have further documented potential anticancer activity. Cranberry could be considered as a conglomeration of potential effective anticancer druglike compounds.


Asunto(s)
Antineoplásicos Fitogénicos/farmacología , Antioxidantes/farmacología , Suplementos Dietéticos , Neoplasias/tratamiento farmacológico , Extractos Vegetales/farmacología , Vaccinium macrocarpon/química , Antineoplásicos Fitogénicos/química , Antioxidantes/química , Proliferación Celular/efectos de los fármacos , Humanos , Neoplasias/patología , Extractos Vegetales/química
15.
Ultrason Sonochem ; 56: 1-13, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31101243

RESUMEN

A lot of effort is put to decrease the energy consumption of drying. This effect might be achieved by shift of a drying technology e.g. from a hot-air to a microwave-vacuum method. Moreover, an unconventional pre-treatment such as ultrasound or pulsed electric field may modify a cellular tissue, what influences drying kinetics of plant tissue. The aim of the study was to analyse the quality of microwave-vacuum dried, osmodehydrated (OD) cranberries processed by the means of blanching and ultrasound (US) or blanching followed by pulsed electric field and sonication (PEF + US) in comparison to traditionally treated material. Physical, chemical and sensorial properties of cranberry fruits were assessed. What is more, the impact of aforementioned unconventional treatments on the kinetics of microwave-vacuum dried cranberries was studied. Microwave-vacuum drying process was very short (25-38 min) in comparison to convective drying, which lasted several hours (13.2 h). Most of the samples subjected to US and PEF + US treatments before OD and drying were characterized by similar or a higher amount of bioactive compounds such as polyphenols, anthocyanins and flavonoids, and better colour and taste, as compared to cut osmodehydrated cranberry fruits subjected to convective drying (reference samples).

16.
Food Chem ; 284: 162-170, 2019 Jun 30.
Artículo en Inglés | MEDLINE | ID: mdl-30744842

RESUMEN

Due to unique phytochemicals contained, Vaccinum berries are known to have a number of positive health effects. In this context, lingonberries (Vaccinium vitis-idaea) are considered to be the most effective, thus finding many uses. Recently, fraud suspicion on lingonberries-based products has been reported, partial or even total replacement by less valued cranberries (Vaccinium macrocarpon) was found. In this study, metabolomic fingerprinting employing instrumental platform consisting of U-HPLC-HRMS/MS was investigated for discrimination between the two Vaccinum berries species. Methanolic extracts of 33 authentic samples from two harvest years were analyzed and chemometric evaluation was performed to identify significant marker compounds, their stability during drying process was assessed, too. The characteristic markers most contributing to berries classification were representatives of polyphenols and phospholipids. Peonidin 3-O-arabinoside and myricetin 3-O-glucoside, not occurring in lingonberries, enabled to discover the presence of cranberries in prepared admixtures down to 1% (w/w).


Asunto(s)
Análisis de los Alimentos/métodos , Metabolómica/métodos , Vaccinium macrocarpon/química , Vaccinium vitis-Idaea/química , Biomarcadores/análisis , Cromatografía Líquida de Alta Presión , Flavonoides/análisis , Análisis de los Alimentos/estadística & datos numéricos , Contaminación de Alimentos , Glucósidos/análisis , Modelos Estadísticos , Fosfolípidos/análisis , Fitoquímicos/análisis , Extractos Vegetales/análisis , Polifenoles/análisis , Espectrometría de Masas en Tándem , Vaccinium macrocarpon/metabolismo , Vaccinium vitis-Idaea/metabolismo
17.
EFSA J ; 17(8): e05745, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32626401

RESUMEN

In accordance with Article 6 of Regulation (EC) No 396/2005, the Federal Public Service Health, Food chain Safety and Environment of Belgium, submitted an application to modify the existing maximum residue levels (MRLs) for the active substance flonicamid in blueberries, cranberries, currants, gooseberries and strawberries. The data submitted in support of the request were found to be sufficient to derive MRL proposals for the crops assessed. Adequate analytical methods for enforcement are available to control the residues of flonicamid in plant matrices under consideration at the validated limit of quantification (LOQ) of 0.01 mg/kg for each analyte included in the residue definition (combined LOQ of 0.03 mg/kg). Based on the risk assessment results, EFSA concluded that the short-term and long-term intake of residues resulting from the use of flonicamid according to the reported agricultural practices is unlikely to present a risk to consumer health.

18.
Rev. Soc. Argent. Diabetes ; 53(2): 70-78, mayo-ago. 2019.
Artículo en Español | LILACS | ID: biblio-1102847

RESUMEN

En varios estudios in vitro se observó que el jugo y cóctel de cranberries tenían efectos inhibitorios sobre la adherencia bacteriana pero sin poder bactericida, por lo tanto se propuso su uso para prevención de la infección urinaria (IU). Estudios clínicos sobre la eficacia del jugo de cranberries han sido limitados y no han demostrado disminución en la aparición de la infección del tracto urinario (ITU), desaconsejando su uso prolongado y aparición de efectos adversos gastrointestinales. Los probióticos reducirían el riesgo de ITU recurrente porque mantiene un pH bajo, producen citoquinas antiinflamatorias y peróxido de hidrógeno como microbicida. Aún así no puede demostrarse un beneficio significativo con el uso de probióticos dado que los estudios que existen no demuestran evidencia suficiente


In several in vitro studies it was observed that the cranberries juice and cocktail had inhibitory effects on bacterial adhesion but with no bactericidal power; therefore, its use was proposed for urinary infection (UI) prevention. Clinical studies on the efficacy of cranberries juice have been limited and have not shown a decrease in the onset of urinary tract infection (UTI), discouraging prolonged use and occurrene of gastrointestinal adverse effects. Probiotics would reduce the risk of recurrent UTI because they maintain a low pH, produce anti-inflammatory cytokines and hydrogen peroxide as a microbicide. Still, no significant benefit can be demonstrated with the use of probiotics since the existing studies show no enough evidence


Asunto(s)
Infecciones Urinarias , Probióticos , Vaccinium macrocarpon
19.
Curr Pharm Biotechnol ; 19(13): 1049-1063, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30520372

RESUMEN

INTRODUCTION: Urinary tract infections (UTIs) represent a common and costly public health issue. The bacterium Escherichia coli is mainly responsible for most uncomplicated UTIs. Cranberry antibacterial effects have extensively been studied in order to understand the molecular mechanisms of action of its bioactive components and their clinical benefits against UTIs. In this respect, the present review aims to critically analyze the current clinical studies that have evaluated the efficacy of supplementing cranberry products against UTIs in different subpopulations. METHODS: PubMed database was comprehensively searched, using relative keywords in order to identify clinical trials exploring the efficacy of cranberry supplementation against UTIs. RESULTS: Current clinical evidence clearly indicates a possible benefit overall from the use of cranberries against UTIs. Cranberry consumption may prevent bacterial adherence to uroepithelial cells, reducing UTI related symptoms. Cranberry consumption could also decrease UTI related symptoms by suppressing inflammatory cascades as an immunologic response to bacterial invasion. The existing clinical trials have supported substantial evidence that the beneficial effects of cranberry against UTIs seem to be prophylactic by preventing infections recurrence; however, they exert low effectiveness in populations at increased risk for contracting UTIs. Moreover, a lack of cost-effectiveness for cranberry supplementation has been highlighted. CONCLUSIONS: Additional well-designed, double-blind, placebo-controlled clinical trials that use standardized cranberry products for long study periods are strongly recommended in order to determine the efficiency of cranberry on the prevention of UTIs in susceptible populations. At present, cranberry supplementation can safely be suggested as complementary therapy in women with recurrent UTIs.


Asunto(s)
Antibacterianos/farmacología , Infecciones por Escherichia coli/prevención & control , Fitoterapia/métodos , Preparaciones de Plantas/farmacología , Infecciones Urinarias/prevención & control , Vaccinium macrocarpon/química , Antibacterianos/aislamiento & purificación , Adhesión Bacteriana/efectos de los fármacos , Ensayos Clínicos como Asunto , Escherichia coli/efectos de los fármacos , Infecciones por Escherichia coli/microbiología , Femenino , Frutas/química , Humanos , Preparaciones de Plantas/aislamiento & purificación , Infecciones Urinarias/microbiología
20.
J Nutr Biochem ; 62: 76-86, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-30269035

RESUMEN

Cranberries have multiple health effects but their impact on gut microbiota has not been examined in randomized controlled feeding trials. We evaluated the relationship between the microbiota and cranberries in the context of an animal-based diet. In a randomized, double-blind, cross-over, controlled design trial, 11 healthy adults consumed for 5 days each a control diet (animal-based diet plus 30 g/day placebo powder) and a cranberry diet (animal-based diet plus 30 g/day freeze-dried whole cranberry powder). The animal-based diet included meats, dairy products, and simple sugars. Stool, urine, and blood samples were obtained before and after each intervention phase. As compared to the pre-control diet, control diet modified 46 taxonomic clades, including an increase in the abundance of Firmicutes and decrease in Bacteroidetes. Moreover, it increased bacteria-derived deoxycholic acid and decreased acetate and butyrate in stool. As compared to the post-intervention phase of control diet, the cranberry diet modified 9 taxonomic clades, including a decrease in the abundance of Firmicutes and increase in Bacteroidetes. Further, the cranberry diet attenuated control diet-induced increase in secondary bile acids and decrease in short-chain fatty acids (SCFA), and increased urinary anthocyanins and bacterially derived phenolic acids. No changes were found in fecal trimethylamine and plasma cytokines. In conclusion, an animal-based diet altered the microbiota composition to a less favorable profile, increased carcinogenic bile acids, and decreased beneficial SCFA. Cranberries attenuated the impact of the animal-based diet on microbiota composition, bile acids, and SCFA, evidencing their capacity to modulate the gut microbiota.


Asunto(s)
Microbioma Gastrointestinal/fisiología , Vaccinium macrocarpon , Adulto , Animales , Antocianinas/orina , Ácidos y Sales Biliares/metabolismo , Dieta , Método Doble Ciego , Ácidos Grasos Volátiles/metabolismo , Heces/microbiología , Femenino , Flavonoides/orina , Humanos , Hidroxibenzoatos/orina , Masculino , Metilaminas/metabolismo , Persona de Mediana Edad , Placebos
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