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https://www.readbyqxmd.com/read/29792199/nanoparticle-delivery-of-grape-seed-derived-proanthocyanidins-to-airway-epithelial-cells-dampens-oxidative-stress-and-inflammation
#1
S Castellani, A Trapani, A Spagnoletta, L di Toma, T Magrone, S Di Gioia, D Mandracchia, G Trapani, E Jirillo, M Conese
BACKGROUND: Chronic respiratory diseases, whose one of the hallmarks is oxidative stress, are still incurable and need novel therapeutic tools and pharmaceutical agents. The phenolic compounds contained in grape are endowed with well-recognized anti-oxidant, anti-inflammatory, anti-cancer, and anti-aging activities. Considering that natural anti-oxidants, such as proanthocyanidins, have poor water solubility and oral bioavailability, we have developed a drug delivery system based on solid lipid nanoparticles (SLN), apt to encapsulate grape seed extract (GSE), containing proanthocyanidins...
May 23, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29785236/the-efficacy-of-a-ceramide-based-cream-in-mild-to-moderate-atopic-dermatitis
#2
Zoe Diana Draelos, Isabelle Raymond
Objective: The goal of this study was to determine if a therapeutic cream containing PC-104 synthetic ceramides and other ingredients could help to ameliorate signs and symptoms of mild-to-moderate atopic dermatitis and other xerotic or pruritic dermatoses. Design: In this single-site, four-week study, subjects (n=50) were instructed to apply the study product three times daily to all affected areas, including a target site for evaluation and photography at baseline, Week 2, and Week 4 visits. Setting: This study took place in the private practice of the senior author...
May 2018: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/29768882/grape-seed-extract-alone-or-combined-with-atropine-in-treatment-of-malathion-induced-neuro-and-genotoxicity
#3
Omar M E Abdel-Salam, Asmaa F Galal, Mahrousa M Hassanane, Lamiaa M Salem, Somaia A Nada, Fatma A Morsy
The aim of this study was to investigate the effect of treatment with grape seed extract (GSE) on the neurotoxic and genotoxic effects of acute malathion exposure. Rats received malathion (150 mg/kg by i.p. injection) for two successive days alone or combined with GSE at doses of 150 or 300 mg/kg, orally or with GSE at 300 mg/kg and atropine at a dose of 2 mg/kg, i.p. Malondialdehyde (MDA), reduced glutathione (GSH), nitric oxide, paraoxonase (PON1) were determined in cortex, striatum, and rest of brain tissue (subcortex)...
January 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29747667/protective-effect-of-grape-seed-and-skin-extract-against-high-fat-diet-induced-dyshomeostasis-of-energetic-metabolism-in-rat-lung
#4
Mohamed El Ayed, Safwen Kadri, Maha Mabrouk, Ezzedine Aouani, Salem Elkahoui
BACKGROUND: Obesity is currently one of the major epidemics of this millennium and affects poeples throughout the world. It causes multiple systemic complications as it significantly interferes with respiratory function. OBJECTIVE: We aimed in the present work to study the effect of high fat diet (HFD) on lung oxidative stress and energy metabolism alterations, as well as the putative protection afforded by grape seed and skin extract (GSSE). METHODS: We started by characterizing the GSSE and its composition using gas chromatography coupled to mass spectrometry (GC-MS)...
May 10, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29743442/fluoride-induced-iron-overload-contributes-to-hepatic-oxidative-damage-in-mouse-and-the-protective-role-of-grape-seed-proanthocyanidin-extract
#5
Qiang Niu, Ping He, Shangzhi Xu, Ruling Ma, Yusong Ding, Lati Mu, Shugang Li
Emerging evidence has demonstrated that iron overload plays an important role in oxidative stress in the liver. This study aimed to explore whether fluoride-induced hepatic oxidative stress is associated with iron overload and whether grape seed proanthocyanidin extract (GSPE) alleviates oxidative stress by reducing iron overload. Forty Kunming male mice were randomly divided into 4 groups and treated for 5 weeks with distilled water (control), sodium fluoride (NaF) (100 mg/L), GSPE (400 mg/kg bw), or NaF (100 mg/L) + GSPE (400 mg/kg bw)...
2018: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/29740325/extract-enriched-in-flavan-3-ols-and-mainly-procyanidin-dimers-improves-metabolic-alterations-in-a-mouse-model-of-obesity-related-disorders-partially-via-estrogen-receptor-alpha
#6
Daniela Leonetti, Raffaella Soleti, Nicolas Clere, Luisa Vergori, Caroline Jacques, Lucie Duluc, Catherine Dourguia, Maria C Martínez, Ramaroson Andriantsitohaina
Red wine polyphenol extracts improve cardiovascular and metabolic disorders linked to obesity. Their vascular protection is mediated by the activation of the alpha isoform of the estrogen receptor (ERα). In the present study, we explored the effects of a grape seed extract (GSE) enriched in the flavan-3-ols procyanidin dimers on obesity-related cardiovascular and metabolic disorders; with a particular interest in the role/contribution of ERα. Ovariectomized wild type or ERα knockout (KO) mice were fed with standard or western diet, supplemented or not with GSE, for 12 weeks...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29725583/evaluation-of-the-systemic-toxicity-and-mutagenicity-of-oligopin%C3%A2-procyanidolic-oligomers-opc-extracted-from-french-maritime-pine-bark-extract
#7
L Segal, M G Penman, Y Piriou
The potential systemic toxicity of Oligopin®, a French Maritime Pine Bark extract (FMPBE) rich in procyanidolic oligomers, was evaluated in an acute oral limit test and a 90-day repeated dose oral toxicity study with Sprague Dawley rats. The potential mutagenicity was assessed in a bacterial reverse mutation assay and in vitro mammalian chromosome aberration assay with human lymphocytes. The results indicate that Oligopin® was nongenotoxic in both bacterial and human cell assays, was not acutely toxic via oral administration at up to 2000 mg/kg and was well tolerated following 90 days of oral administration to SD rats, with a no observed adverse effect level of 1000 mg/kg/day...
2018: Toxicology Reports
https://www.readbyqxmd.com/read/29720929/antioxidant-effects-of-compound-walnut-oil-capsule-in-mice-aging-model-induced-by-d-galactose
#8
Huandong Zhao, Jian Li, Juan Zhao, Yang Chen, Caiping Ren, Yuxiang Chen
Background: Many plant original foods have been shown beneficial effects in humans. In the previous work, we have developed a compound capsule which contains major constituents of walnut oil and grape seed extract. Objective: To investigate the antioxidant effects of the Compound Walnut Oil Capsule (WOC) in aging model induced by D-gal. Design: 70 C57BL/6J mice were randomly divided into seven groups. Mice in normal group received daily subcutaneous injection of saline while the control group, WOC groups, Vitamin C (VC) group and pure walnut oil group received daily subcutaneous injection of D-galactose (D-gal) for 8 weeks...
2018: Food & Nutrition Research
https://www.readbyqxmd.com/read/29719667/effects-of-chitosan-edible-coating-containing-grape-seed-extract-on-the-shelf-life-of-refrigerated-rainbow-trout-fillet
#9
Parviz Hassanzadeh, Mehran Moradi, Nasim Vaezi, Mir-Hassan Moosavy, Razzagh Mahmoudi
In recent years, use of edible coatings as carriers of food additives and antimicrobial compounds has been considered in fishery products. This study was carried out to evaluate the effects of 2.00% chitosan coating singly and combined with 0.10% grape seed extract (GSE) on microbial (mesophils and psychrophils counts), chemical (thiobarbituric acid; TBA), pH and peroxide value (PV) and sensorial properties of rainbow trout fillet stored at 4 ° C over a period of 15 days. The coating had a significant effect in reducing aerobic mesophilic and psychrophilic bacteria counts...
2018: Veterinary Research Forum
https://www.readbyqxmd.com/read/29701895/interactions-between-flavonoid-rich-extracts-and-sodium-caseinate-modulate-protein-functionality-and-flavonoid-bioaccessibility-in-model-food-systems
#10
Jennifer L Elegbede, Min Li, Owen G Jones, Osvaldo H Campanella, Mario G Ferruzzi
With growing interest in formulating new food products with added protein and flavonoid-rich ingredients for health benefits, direct interactions between these ingredient classes becomes critical in so much as they may impact protein functionality, product quality, and flavonoids bioavailability. In this study, sodium caseinate (SCN)-based model products (foams and emulsions) were formulated with grape seed extract (GSE, rich in galloylated flavonoids) and green tea extract (GTE, rich in nongalloylated flavonoids), respectively, to assess changes in functional properties of SCN and impacts on flavonoid bioaccessibility...
April 27, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29701782/grape-seed-procyanidin-extract-inhibits-adipogenesis-and-stimulates-lipolysis-of-porcine-adipocytes-in-vitro
#11
S Wei, Y Zheng, M Zhang, H Zheng, P Yan
The objective of this paper was to evaluate in vitro effect of grape seed procyanidin extract (GSPE) on differentiation, proliferation, and lipolysis of porcine adipocytes, providing a molecular basis for the use of GSPE in pig fat regulation. Primary preadipocytes isolated from subcutaneous adipose tissue of pigs were used as the in vitro cell model. Treatment of GSPE repressed preadipocyte differentiation, as evidenced by reduced lipid accumulation, decreased mRNA expressions of peroxisome proliferator-activated receptor gamma (PPARγ) and fatty acid binding protein 4 (FABP4) , as well as enhanced expressions of preadipocyte factor-1 (Pref-1)...
April 26, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29684110/mechanistic-insights-into-anticancer-properties-of-oligomeric-proanthocyanidins-from-grape-seeds-in-colorectal-cancer
#12
Preethi Ravindranathan, Divya Pasham, Uthra Balaji, Jacob Cardenas, Jinghua Gu, Shusuke Toden, Ajay Goel
Although the anticancer properties of oligomeric proanthocyanidins (OPCs) from grape seeds have been well recognized, the molecular mechanisms by which they exert anticancer effects are poorly understood. In this study, through comprehensive RNA-sequencing-based gene expression profiling in multiple colorectal cancer cell lines, we for the first time illuminate the genome-wide effects of OPCs from grape seeds in colorectal cancer. Our data revealed that OPCs affect several key cancer-associated genes. In particular, genes involved in cell cycle and DNA replication were most significantly and consistently altered by OPCs across multiple cell lines...
April 19, 2018: Carcinogenesis
https://www.readbyqxmd.com/read/29683391/grape-seed-extract-supplementation-attenuates-the-blood-pressure-response-to-exercise-in-prehypertensive-men
#13
Jong-Kyung Kim, Kyung-Ae Kim, Hyun-Min Choi, Seung-Kook Park, Charles L Stebbins
We tested the hypothesis that exaggerated pressor responses observed in prehypertensive males (N = 9) during dynamic exercise are attenuated following acute dietary supplementation with grape seed extract (GSE) (i.e., a single dose). Effects of placebo and GSE (300 mg) on systolic blood pressure, diastolic blood pressure, mean arterial pressure (MAP), cardiac output (CO), stroke volume (SV), total vascular conductance (TVC), and rate × pressure product (RPP) in response to two submaximal cycling workloads (40% and 60% VO2peak ) were compared 2 h after ingestion of GSE or placebo on different days, 1 week apart...
April 23, 2018: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29668036/optimization-of-extraction-of-hypoglycemic-ingredients-from-grape-seeds-and-evaluation-of-%C3%AE-glucosidase-and-%C3%AE-amylase-inhibitory-effects-in-vitro
#14
Fansheng Kong, Yaru Qin, Zhipeng Su, Zhengxiang Ning, Shujuan Yu
Grape seeds full with oil and also rich in hypoglycemic ingredients. This study is to improve the comprehensive utilization of grape seeds and the quality of grape seeds oil. Extract water soluble active substances before extracting oil from grape seeds, which show the grape seeds in water soluble extracts containing TP, TC, PC contents, respectively, are 171.1 ± 1.1, 658.8 ± 0.2, 482.3 ± 0.2 (mg GSAE/g). Also we found GSAE samples containing catechin and epicatechin were 44.12 ± 0.21 mg/mL, 111.23 ± 1...
April 18, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29643994/grape-seed-procyanidin-extract-against-lung-cancer-the-role-of-microrna-106b-bioavailability-and-bioactivity
#15
Bingye Xue, Qing-Yi Lu, Larry Massie, Clifford Qualls, Jenny T Mao
MiR-106b is an oncomir and a potential target for anti-cancer therapy. We hypothesize that grape seed procyanidin extract (GSE) exerts antineoplastic effects on lung cancer through modulations of miR-106b and its downstream target. We found that GSE significantly down-regulated miR-106b in a variety of lung neoplastic cells and increased cyclin-dependent kinase inhibitor 1A ( CDKN1A ) mRNA and protein (p21) levels. Transfection of miR-106b mimics reversed the up-regulations of CDKN1A mRNA and p21, abrogated the GSE induced anti-proliferative and anti-invasive properties in lung cancer cells...
March 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29628657/effect-of-different-antioxidants-on-reversing-compromised-resin-bond-strength-after-enamel-bleaching-an-in-vitro-study
#16
Hulas Gogia, Sonali Taneja, Mohit Kumar, Sonal Soi
Objective: The effect of 10% sodium ascorbate, 10% α-tocopherol, 10% grape seed extract, and 10% guava seed extract solutions on the shear bond strength (SBS) of composite resin to bleached enamel was evaluated. Materials and Methods: Labial enamel surfaces of 72 extracted maxillary central incisors were bleached using 37.5% hydrogen peroxide. Sixty-four specimens were divided into four experimental groups (Group I-IV) comprising 16 specimens each and remaining eight specimens were placed in Group V...
January 2018: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29613814/grape-seed-procyanidins-extract-attenuates-cisplatin-induced-oxidative-stress-and-testosterone-synthase-inhibition-in-rat-testes
#17
Minmin Tian, Fangfang Liu, Han Liu, Qiong Zhang, Lei Li, Xiangbo Hou, Jianxin Zhao, Sheng Li, Xuhong Chang, Yingbiao Sun
Cisplatin (CIS) is widely applied for its antihematological malignancies properties and as antisolid tumors drugs. However, it could cause testicular damage related with oxidative stress and testosterone synthesis disorder. Studies reported that grape seed procyanidins extract (GSPE) could improve CIS induced-testes lesion via scavenging free radicals in animals, although its mechanisms were unclear. Therefore, the purpose of the present study was to explore the antagonistic mechanisms of GSPE on CIS-induced testes lesion...
April 3, 2018: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/29603247/optimization-of-ultrasound-assisted-extraction-of-grape-seed-oil-to-enhance-process-yield-and-minimize-free-radical-formation
#18
Bruna R Böger, Aroldo Salviato, Daniel F Valezi, Eduardo Di Mauro, Sandra R Georgetti, Louise E Kurozawa
BACKGROUND: Grape seeds are a relatively abundant source of oil and bioactive compounds. In order to use this by-product, the current work aimed to optimize the ultrasound-assisted extraction of grape seed oil to obtain greater process yield and minimize free radicals formation in the oil. RESULTS: The optimal condition was 15°C and amplitude of ultrasonic wave of 42 μm, leading to a process yield of 82.9% and content of free radicals of 14.7×1017 kg-1 and 3...
March 30, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29578242/proanthocyanidin-rich-grape-seed-extract-modulates-intestinal-microbiota-in-ovariectomized-mice
#19
Guangwen Jin, Yoshinori Asou, Kirika Ishiyama, Atsushi Okawa, Taro Kanno, Yoshimi Niwano
Grape-seed extract (GSE) is rich in proanthocyanidins (polymers of flavan-3-ols). GSE is well known to have various beneficial effects to health. The objective of this study was to examine the effect of dietary GSE on the intestinal microbiota in ovariectomized (OVX) mice as a model of menopause. Phylum-level analyses using 16S rRNA-targeted group-specific polymerase-chain reaction primers in fecal samples collected 8 weeks postoperatively from OVX mice revealed that the proportion of Firmicutes and Bacteroidetes populations became imbalanced as compared with that in sham-operated control mice...
March 26, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29569905/a-novel-antihypertensive-prodrug-from-grape-seed-proanthocyanidins-extracts-via-acid-mediated-depolymerization-in-the-presence-of-captopril-synthesis-process-optimization-and-metabolism-in-rats
#20
Can Cui, Ailong Shi, Shuang Bai, Pengyu Yan, Qing Li, Kaishun Bi
Grape seed extract contain a high content of proanthocyanidins that can be depolymerized into C-4 substituted (epi)catechin derivatives in the presence of nucleophiles. However, the biological and medicinal values of depolymerisation products have been rarely investigated. Recently we developed a novel depolymerisation product (-)-epicatechin-4β-S-captopril methyl ester (ECC) derived from the reaction of grape seed proanthocyanidin extract with captopril in the presence of acidified methanol. A central composite design (CCD) was employed to select the most appropriate depolymerisation temperature and time to obtain the target product ECC with high yield...
March 23, 2018: Journal of Agricultural and Food Chemistry
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