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Food & Function

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https://www.readbyqxmd.com/read/29143827/digestion-under-saliva-simulated-gastric-and-small-intestinal-conditions-and-fermentation-in-vitro-of-polysaccharides-from-the-flowers-of-camellia-sinensis-induced-by-human-gut-microbiota
#1
Dan Chen, Guijie Chen, Peng Wan, Bing Hu, Ligen Chen, Shiyi Ou, Xiaoxiong Zeng, Hong Ye
In the present study, digestion under saliva, simulated gastric and small intestinal conditions and fermentation in vitro of polysaccharides from the flowers of Camellia sinensis (TFPS) by human gut microbiota were investigated. The results indicated that human saliva and simulated gastric and intestinal juices had no effect on TFPS, while TFPS could be utilized by human fecal microbiota, which was proved from the decreased molecular weight and lower content of total or reducing sugars after fermentation under anaerobic conditions...
November 16, 2017: Food & Function
https://www.readbyqxmd.com/read/29140397/progress-in-the-understanding-of-the-pathology-of-allergic-asthma-and-the-potential-of-fruit-proanthocyanidins-as-modulators-of-airway-inflammation
#2
REVIEW
Sara L Coleman, Odette M Shaw
Allergic asthma is a chronic inflammatory lung disease characterized by sensitization of the airways, and the development of immunoglobulin E antibodies, to benign antigens. The established pathophysiology of asthma includes recurrent lung epithelial inflammation, excessive mucus production, bronchial smooth muscle hyperreactivity, and chronic lung tissue remodeling, resulting in reversible airflow restriction. Immune cells, including eosinophils and the recently characterized type 2 innate lymphoid cells, infiltrate into the lung tissue as part of the inflammatory response in allergic asthma...
November 15, 2017: Food & Function
https://www.readbyqxmd.com/read/29139513/current-knowledge-of-intestinal-absorption-of-bioactive-peptides
#3
REVIEW
Weilin Shen, Toshiro Matsui
Peptides have been demonstrated as potentially beneficial compounds against several life-style related diseases such as hypertension, hypercholesterolemia, and atherosclerosis, among others. However, limited research has been carried out on peptide absorption, resulting in a lack of understanding and control of this process. Therefore, this review discusses the recent insights gathered on in vitro and in vivo absorption of peptides across intestinal membranes, into blood circulation. Briefly, some di-/tripeptides permeate through intestinal membranes in their intact forms via peptide transporter systems, while others are vulnerable to protease degradation...
November 15, 2017: Food & Function
https://www.readbyqxmd.com/read/29138791/a-new-heteropolysaccharide-from-the-seed-husks-of-plantago-asiatica-l-with-its-thermal-and-antioxidant-properties
#4
Yuge Niu, Na Li, Sierkemideke Alaxi, Guoren Huang, Lei Chen, Ziqian Feng
A new heteropolysaccharide (PMH) with a molecular weight of 1.4 × 10(3) kDa was isolated from the seed husks of Plantago asiatica L. The monosaccharide composition of PMH was determined as glucose, xylose, arabinose, rhamnose, galactose and galacturonic acid with a molar ratio of 1.0 : 1.8 : 2.4 : 3.8 : 4.9 : 8.5. The backbone of PMH consisted of 1,4-β-d-GalpA with the side chains mainly composed of 1,3-α-d-Galp and 1,2-α-d-Galp which were attached to the O-3 of GlapA. The thermal analysis using the Flynn-Wall-Ozawa (FWO) method revealed that PMH had an apparent activation energy (Ea) of 173...
November 15, 2017: Food & Function
https://www.readbyqxmd.com/read/29138782/vasorelaxant-activity-of-twenty-one-physiologically-relevant-poly-phenolic-metabolites-on-isolated-mouse-arteries
#5
E Van Rymenant, C Grootaert, K Beerens, P W Needs, P A Kroon, A Kerimi, G Williamson, R García-Villalba, A González-Sarrías, F Tomas-Barberan, J Van Camp, J Van de Voorde
Polyphenols are beneficial for health, but are metabolised after consumption. We compared the vasorelaxant capacity of twenty-one physiologically relevant polyphenol metabolites in isolated mouse arteries. Hesperetin, urolithins and ferulic acid-4-O-sulfate - not their glucuronidated forms or ferulic acid - caused vasorelaxation. Therefore, we advise the use of relevant conjugates in future mechanistic research.
November 15, 2017: Food & Function
https://www.readbyqxmd.com/read/29134218/antioxidant-and-anti-inflammatory-properties-of-ilex-guayusa-tea-preparations-a-comparison-to-camellia-sinensis-teas
#6
Madelein D Pardau, Andreia S P Pereira, Zeno Apostolides, June C Serem, Megan J Bester
Ilex guayusa tea preparations are now commercially available as Runa tea. Little is known regarding the antioxidant and anti-inflammatory bioactivities of this tea. The I. guayusa teas had a total polyphenolic content between 54.39 and 67.23 mg GAE per g dry mass and peroxyl radical scavenging capacities between 1773.41 and 2019 μmol TE per g dry mass, nearly half of that for the Camellia sinensis teas. The I. guayusa teas afforded 60-80% protection from oxidative stress in the Caco-2 cellular antioxidant assay, comparable to the C...
November 14, 2017: Food & Function
https://www.readbyqxmd.com/read/29130084/welsh-onion-extract-inhibits-pcsk9-expression-contributing-to-the-maintenance-of-the-ldlr-level-under-lipid-depletion-conditions-of-hepg2-cells
#7
Hyo-Kyoung Choi, Jin-Taek Hwang, Tae-Gyu Nam, Sung Hee Kim, Dong-Kook Min, Sahng Wook Park, Min-Yu Chung
Statins mediate the transactivation of PCSK9, which in turn limits their cholesterol-lowering effects via LDL receptor (LDLR) degradation. The objective of the present study was to investigate the mechanism of action by which Welsh onion (Allium fistulosum L. [family Amaryllidaceae]) extract (WOE) regulates LDLR and PCSK9. HepG2 cells were cultured under lipid depletion conditions using a medium supplemented with delipidated serum (DLPS). WOE (50, 100, 200, and 400 μg ml(-1)) significantly attenuated the DLPS-mediated increases in LDLR, PCSK9, and SREBP2 gene expression...
November 13, 2017: Food & Function
https://www.readbyqxmd.com/read/29119979/enhanced-delivery-of-lipophilic-bioactives-using-emulsions-a-review-of-major-factors-affecting-vitamin-nutraceutical-and-lipid-bioaccessibility
#8
REVIEW
David Julian McClements
Many researchers are currently developing emulsion-based delivery systems to increase the bioavailability of lipophilic bioactive agents, such as oil-soluble vitamins, nutraceuticals, and lipids. Oil-in-water emulsions can be specifically designed to improve the bioavailability of these bioactives by altering their composition and structural organization. This article reviews recent progress in understanding the impact of emulsion properties on the bioaccessibility of lipophilic bioactive agents, including oil phase composition, aqueous phase composition, droplet size, emulsifier type, lipid physical state, and droplet aggregation state...
November 9, 2017: Food & Function
https://www.readbyqxmd.com/read/29119177/physiological-linkage-of-gender-bioavailable-hydroxytyrosol-derivatives-and-their-metabolites-with-systemic-catecholamine-metabolism
#9
R Domínguez-Perles, D Auñón, F Ferreres, A Gil-Izquierdo
Despite extensive characterization of hydroxytyrosol (HT), there is a gap in the knowledge about its capacity to modulate catecholamine pathways. This study deals with the evaluation of the effects of HT, hydroxytyrosol acetate (HTA), and 3,4-dihydroxyphenylacetic acid (DOPAC), as well as their microbial metabolites (homovanillyl alcohol and tyrosol), on the excretion of catecholamines by UHPLC-ESI-QqQ-MS/MS upon administration at 1 and 5 mg kg(-1) to male and female rats. The evaluation of urinary dopamine, norepinephrine, normetanephrine, and 3-methoxytyramine demonstrated 12...
November 9, 2017: Food & Function
https://www.readbyqxmd.com/read/29115354/human-anthocyanin-bioavailability-effect-of-intake-duration-and-dosing
#10
Wilhelmina Kalt, Jane E McDonald, Melinda R Vinqvist-Tymchuk, Yan Liu, Sherry A E Fillmore
While in vitro and animal evidence supports a role for anthocyanins in human health, future opportunities in berry health benefits will rest upon evidence from clinical intervention trials. Because little is known about the behaviour of anthocyanins during long term intake in humans, several clinical design factors were examined. Urine from volunteers (n = 17) who consumed blueberry juice daily was analysed using LC-MS/MS for predicted flavonoid-based products of anthocyanins in relation to a 5-day anthocyanin-free run-in, 28 days of blueberry juice intake, a 7-day washout and two dosing regimens...
November 8, 2017: Food & Function
https://www.readbyqxmd.com/read/29114654/the-presence-of-food-derived-collagen-peptides-in-human-body-structure-and-biological-activity
#11
REVIEW
Kenji Sato
It has been demonstrated that the ingestion of some protein hydrolysates exerts health-promoting effects. For understanding the underlying mechanisms responsible for these effects, the identification of bioactive peptides in the target organ is crucial. For this purpose, in vitro activity-guided fractionation for peptides in the protein hydrolysate has been performed. However, the peptides in the hydrolysate may be further degraded during digestion. The concentration of the active peptides, which were identified by in vitro activity-guided fractionation, in human blood is frequently very low (nanomolar levels)...
November 8, 2017: Food & Function
https://www.readbyqxmd.com/read/29114652/pepsin-egg-white-hydrolysate-ameliorates-metabolic-syndrome-in-high-fat-high-dextrose-fed-rats
#12
S Moreno-Fernández, M Garcés-Rimón, C González, J A Uranga, V López-Miranda, G Vera, M Miguel
The aim of this study was to examine the effect of a pepsin egg white hydrolysate (EWH) on metabolic complications using a high-fat/high-dextrose diet-induced Metabolic Syndrome (MetS) experimental model. Male Wistar rats were divided into 4 groups which received: standard diet and water (C), standard diet and a solution with 1 g kg(-1) day(-1) of EWH (CH), high-fat/high-dextrose diet and water (MS), and high-fat/high-dextrose diet and a solution with 1 g kg(-1) day(-1) of EWH (MSH). EWH consumption normalized body weight gain; abdominal obesity and peripheral neuropathy developed in MetS animals, and adipose tissue and liver weight, as well as plasma glucose were reduced...
November 8, 2017: Food & Function
https://www.readbyqxmd.com/read/29111558/the-development-of-phytosterol-lecithin-mixed-micelles-and-organogels
#13
Andrew B Matheson, Georgios Dalkas, Andrei Gromov, Stephen R Euston, Paul S Clegg
We demonstrate that by mixing the phytosterol-ester oryzanol with lecithin in an organic solvent, both components may be dispersed at much higher concentrations than they may be individually. Dynamic light scattering and molecular dynamics simulations show that the mechanism for this is the formation of r ∼ 4 nm mixed micelles. Infrared spectroscopy and simulations suggest that these micelles are formed due in part to hydrogen bonding of the phosphate of the lecithin head-group, and the phenol group of the oryzanol...
November 7, 2017: Food & Function
https://www.readbyqxmd.com/read/29111554/sulforaphane-protects-mle-12-lung-epithelial-cells-against-oxidative-damage-caused-by-ambient-air-particulate-matter
#14
An-Shi Wang, Yan Xu, Zhuang-Wei Zhang, Bei-Bei Lu, Xuan Yin, An-Jun Yao, Li-Yuan Han, Zu-Quan Zou, Zhen Li, Xiao-Hong Zhang
Ambient air particulate matter with aerodynamic diameters ≤2.5 μm (PM2.5) can cause pulmonary injury. Oxidative stress is thought to be an important mechanism of PM2.5-mediated toxicity. Sulforaphane (SFN), a compound derived from cruciferous vegetables, is a well-known potent antioxidant; however, its protective effect on lung epithelial cells exposed to PM2.5 is unclear. The results showed that SFN pre-treatment markedly inhibited PM2.5-induced apoptosis of the type II alveolar epithelial cell line MLE-12 by elevating glutathione S-transferase levels and decreasing reactive oxygen species...
November 7, 2017: Food & Function
https://www.readbyqxmd.com/read/29106426/effect-of-a-novel-potential-probiotic-lactobacillus-paracasei-jlus66-isolated-from-fermented-milk-on-nonalcoholic-fatty-liver-in-rats
#15
Haiqing Ye, Qian Li, Zhengzhe Zhang, Maocheng Sun, Changhui Zhao, Tiehua Zhang
Nonalcoholic fatty liver disease (NAFLD) is the main cause of chronic liver disease worldwide. Previous evidence indicates that probiotics can be applied as a therapeutic agent for NAFLD. In this study, the potential probiotic strain Lactobacillus paracasei Jlus66 was isolated from natural fermented milk by a culture-dependent method, and its probiotic potentials were tested by established in vitro tests. In addition, the protective effect of Lactobacillus paracasei Jlus66 against NAFLD was evaluated in rat models...
November 6, 2017: Food & Function
https://www.readbyqxmd.com/read/29099523/a-potential-strategy-for-counteracting-age-related-sarcopenia-preliminary-evidence-of-combined-exercise-training-and-leucine-supplementation
#16
Z Xia, J M Cholewa, Y Zhao, Y Yang, H Shang, H Jiang, Q Su, N E Zanchi
Previous research has demonstrated the positive effects of concurrent/combined aerobic and resistance exercise or leucine supplementation on skeletal muscle protein synthesis (MPS) and hypertrophy in aging organisms. However, the effects of a multimodal intervention which combines both aerobic and resistance exercise and leucine supplementation has not been fully elucidated. Eighteen month old and 2 month old C57BL/6 mice were assigned to aging control (AC, n = 8), aging and multimodal intervention (AMI, n = 8) and young control (YC, n = 8)...
November 3, 2017: Food & Function
https://www.readbyqxmd.com/read/29099521/impact-of-daily-strawberry-consumption-on-blood-pressure-and-arterial-stiffness-in-pre-and-stage-1-hypertensive-postmenopausal-women-a-randomized-controlled-trial
#17
Rafaela G Feresin, Sarah A Johnson, Shirin Pourafshar, Jeremiah C Campbell, Salvador J Jaime, Negin Navaei, Marcus L Elam, Neda S Akhavan, Stacey Alvarez-Alvarado, Gershon Tenenbaum, Kenneth Brummel-Smith, Gloria Salazar, Arturo Figueroa, Bahram H Arjmandi
Growing evidence indicates that strawberries are cardioprotective. We conducted an eight-week randomized, double-blind, placebo-controlled, parallel arm clinical trial to investigate the effects of daily consumption of freeze-dried strawberry powder (FDSP) on blood pressure (BP) and arterial stiffness in pre- and stage 1-hypertensive postmenopausal women. Sixty postmenopausal women were randomly assigned to one of three groups: (1) control, (2) 25 g FDSP and (3) 50 g FDSP (n = 20 per group). Assessments of body weight, BP, arterial stiffness as measured by pulse wave velocity (PWV), and collection of blood samples for analyses of vasoactive and antioxidant molecules were performed at baseline, four and eight weeks...
November 3, 2017: Food & Function
https://www.readbyqxmd.com/read/29099131/alterations-in-lipid-metabolism-due-to-a-protein-restricted-diet-in-rats-during-gestation-and-or-lactation
#18
T C Sosa-Larios, A A Miliar-Garcia, L A Reyes-Castro, S Morimoto, M E Jaramillo-Flores
Perinatal malnutrition affects not only fetal and neonatal growth, but also the health of offspring in adulthood, as suggested by the concept of metabolic programming. The impact of maternal protein malnutrition on the metabolism of offspring is demonstrated with the current data. One group of pregnant/lactating female rats was fed with an isocaloric diet having normal protein content. Three other groups were provided 50% of this protein level during pregnancy and/or lactation. The growth and metabolic state of the offspring was monitored...
November 3, 2017: Food & Function
https://www.readbyqxmd.com/read/29094744/oral-administration-of-lyophilized-dunaliella-salina-a-carotenoid-rich-marine-alga-reduces-tumor-progression-in-mammary-cancer-induced-rats
#19
Ramachandran Srinivasan, Amballa Chaitanyakumar, Anbazhagan Mageswari, Ajitha Gomathi, J G S Pavan Kumar, Mathiyazhagan Jayasindu, Gunasekaran Bharath, Jagannathan Sampathkumar Shravan, K M Gothandam
Dunaliella salina is a photosynthetic cell factory used for the commercial production of food additives, cattle stock feed and cosmetics as well as active ingredients for pharmaceutical industries. The investigation of the in vivo antitumor activity of D. salina lyophilized powder (DSLP) against 7,12-dimethylbenz(a)anthracene (DMBA) induced mammary carcinogenesis in female Wistar rats indicated a dose-dependent effect of DSLP. We studied the effect of DSLP at two different dosages of 500 and 1000 mg per kg bw on DMBA induced mammary cancer in rats by measuring the status of antioxidant enzymes, phase I and phase II detoxification enzymes, lipid peroxidation, and glycoconjugated proteins and by investigating the expression pattern of cell proliferation (Ki-67), hormonal receptor (ER, PR and HER2) status by immunohistochemical analysis, and apoptotic (caspase-3 and -9) and pro-inflammatory (COX-2) markers by colorimetric analysis...
November 2, 2017: Food & Function
https://www.readbyqxmd.com/read/29094115/lactobacillus-plantarum-hnu082-derived-improvements-in-the-intestinal-microbiome-prevent-the-development-of-hyperlipidaemia
#20
Yuyu Shao, Dongxue Huo, Qiannan Peng, Yuyang Pan, Shuaiming Jiang, Bin Liu, Jiachao Zhang
Restricted by research techniques, the probiotic-derived changes in the microbiome and microbial metabolites correlated with the potential prevention of hyperlipidaemia have remained undiscovered. In the present research, a metagenomic approach was applied to describe Lactobacillus plantarum HNU082 consumption-derived changes in the intestinal microbiome and their correlation with the occurrence and development of hyperlipidaemia. Principal coordinate analysis based on UniFrac distances indicated that the intestinal microbiota was profoundly altered in the hyperlipidaemia group, and probiotic consumption regulated the bias in the intestinal microbial structure in hyperlipidaemia...
November 2, 2017: Food & Function
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