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Journal of Nutritional Biochemistry

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https://www.readbyqxmd.com/read/28651168/the-antioxidant-and-anti-inflammatory-properties-of-lycopene-in-mice-lungs-exposed-to-cigarette-smoke
#1
Keila Karine Duarte Campos, Glaucy Rodrigues Araújo, Thais Lourenço Martins, Ana Carla Balthar Bandeira, Guilherme de Paula Costa, André Talvani, Camila Carrião Machado Garcia, Laser Antônio Machado Oliveira, Daniela Caldeira Costa, Frank Silva Bezerra
Lycopene is a carotenoid with known antioxidant and anti-inflammatory properties. We aimed to evaluate the in vitro and in vivo effects of lycopene on reducing the redox imbalance and inflammation induced by cigarette smoke (CS). For the in vitro study, J774A.1 (macrophages) cells were incubated in the presence of 0.5, 1.0, 2.0, 4.0, 8.0, 10.0 and 25 μM of lycopene for 3, 6 and 24 h or in the presence of 0.1%, 0.25%, 0.5%, 0.625%, 1.25%, 2.25%, 5% and 10% cigarette smoke extract (CSE) for 3, 6 and 24 h to assess cell viability and measurement of intracellular reactive oxygen species (ROS)...
June 20, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28628909/nonalcoholic-fatty-liver-disease-impairs-the-cytochrome-p-450-dependent-metabolism-of-%C3%AE-tocopherol-vitamin-e
#2
Desirée Bartolini, Pierangelo Torquato, Carolina Barola, Angelo Russo, Chiara Rychlicki, Danilo Giusepponi, Guido Bellezza, Angelo Sidoni, Roberta Galarini, Gianluca Svegliati-Baroni, Francesco Galli
This study aims to investigate in in vivo and in vitro models of nonalcoholic fatty liver disease (NAFLD) the enzymatic metabolism of α-tocopherol (vitamin E) and its relationship to vitamin E-responsive genes with key role in the lipid metabolism and detoxification of the liver. The experimental models included mice fed a high-fat diet combined or not with fructose (HFD+F) and HepG2 human hepatocarcinoma cells treated with the lipogenic agents palmitate, oleate or fructose. CYP4F2 protein, a cytochrome P-450 isoform with proposed α-tocopherol ω-hydroxylase activity, decreased in HFD and even more in HFD+F mice liver; this finding was associated with increased hepatic levels of α-tocopherol and decreased formation of the corresponding long-chain metabolites α-13-hydroxy and α-13-carboxy chromanols...
June 7, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28623808/role-of-polyphenols-and-polyphenol-rich-foods-in-the-modulation-of-pon1-activity-and-expression
#3
REVIEW
Daniela Martini, Cristian Del Bo', Marisa Porrini, Salvatore Ciappellano, Patrizia Riso
Paraoxonase 1 (PON1) is a high-density lipoprotein (HDL)-associated enzyme involved in the protection of low-density lipoprotein and HDLs against lipid peroxidation. Several studies documented the capacity of polyphenols to stimulate PON1 transcription activation. The objective of the present review is to provide the main evidence about the role and the potential mechanism of action of polyphenols and polyphenol-rich foods in the modulation of PON1 gene expression and activity. A total of 76 in vitro and in vivo studies were included in the review...
June 6, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28628798/maternal-liver-docosahexaenoic-acid-dha-stores-are-increased-via-higher-serum-unesterified-dha-uptake-in-pregnant-long-evans-rats
#4
Adam H Metherel, Alex P Kitson, Anthony F Domenichiello, R J Scott Lacombe, Kathryn E Hopperton, Marc-Olivier Trépanier, Shoug M Alashmali, Lin Lin, Richard P Bazinet
Maternal docosahexaenoic acid (DHA, 22:6n-3) supplies the developing fetus during pregnancy; however, the mechanisms are unclear. We utilized pregnant rats to determine rates of DHA accretion, tissue unesterified DHA uptake and whole-body DHA synthesis-secretion. Female rats maintained on a DHA-free, 2% α-linolenic acid diet were either:1) sacrificed at 56 days for baseline measures, 2) mated and sacrificed at 14-18 days of pregnancy or 3) or sacrificed at 14-18 days as age-matched virgin controls. Maternal brain, adipose, liver and whole body fatty acid concentrations was determined for balance analysis, and kinetic modeling was used to determine brain and liver plasma unesterified DHA uptake and whole-body DHA synthesis-secretion rates...
June 1, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28599197/tomato-lycopersicon-esculentum-or-lycopene-supplementation-attenuates-ventricular-remodeling-after-myocardial-infarction-through-different-mechanistic-pathways
#5
Bruna L B Pereira, Patrícia P Reis, Fábio E Severino, Tainara F Felix, Mariana G Braz, Flávia R Nogueira, Renata A C Silva, Ana C Cardoso, Maria A M Lourenço, Amanda M Figueiredo, Fernanda Chiuso-Minicucci, Paula S Azevedo, Bertha F Polegato, Katashi Okoshi, Ana A H Fernandes, Sergio A R Paiva, Leonardo A M Zornoff, Marcos F Minicucci
The objective of this study was to evaluate the influence of tomato or lycopene supplementation on cardiac remodeling after myocardial infarction (MI). Male Wistar rats were assigned to four groups: the sham group (animals that underwent simulated surgery) that received a standard chow (S; n=18), the infarcted group that received a standard chow (MI; n=13), the infarcted group supplemented with lycopene (1 mg of lycopene/kg body weight/day) (MIL; n=16) and the infarcted group supplemented with tomato (MIT; n=16)...
June 1, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28605664/soy-compared-with-milk-protein-in-a-western-diet-changes-fecal-microbiota-and-decreases-hepatic-steatosis-in-obese-oletf-rats
#6
Matthew R Panasevich, Colin M Schuster, Kathryn E Phillips, Grace M Meers, Sree V Chintapalli, Umesh D Wankhade, Kartik Shankar, Dustie N Butteiger, Elaine S Krul, John P Thyfault, R Scott Rector
Soy protein is effective at preventing hepatic steatosis; however, the mechanisms are poorly understood. We tested the hypothesis that soy vs. dairy protein-based diet would alter microbiota and attenuate hepatic steatosis in hyperphagic Otsuka Long-Evans Tokushima fatty (OLETF) rats. Male OLETF rats were randomized to "Western" diets containing milk protein isolate (MPI), soy protein isolate (SPI) or 50:50 MPI/SPI (MS) (n=9-10/group; 21% kcal protein) for 16 weeks. SPI attenuated (P<.05) fat mass and percent fat by ~10% compared with MS, but not compared with MPI...
May 31, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28605665/the-effects-of-fatty-acid-composition-on-cardiac-hypertrophy-and-function-in-mouse-models-of-diet-induced-obesity
#7
Son Nguyen, Dan Shao, Loreta C Tomasi, Alyssa Braun, Ana Barbosa Marcondes de Mattos, Yong Seon Choi, Outi Villet, Nathan Roe, Carliana R Halterman, Rong Tian, Stephen C Kolwicz
High-fat diets (HFDs) are used frequently to study the development of cardiac dysfunction in animal models of obesity and diabetes. However, impairment in systolic function, often reported as declining ejection fraction, may not consistently occur in a given time frame which could be contributable to a variety of factors within the experimental design. One major factor may be the amounts of saturated and unsaturated fatty acids (FAs) that are present in the diet. To determine whether the FA content and composition were critical determinants in the development of cardiac dysfunction in response to high-fat feeding, we fed adult, male mice Western diet (45% fat, 60% saturated), Surwit diet (60% fat, 90% saturated), milk-fat-based diet (60% fat, 60% saturated) or high-fat Western diet (HFWD, 60% fat, 32% saturated) for 12 weeks...
May 25, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28582660/the-phytochemical-3-3-diindolylmethane-decreases-expression-of-ar-controlled-dna-damage-repair-genes-through-repressive-chromatin-modifications-and-is-associated-with-dna-damage-in-prostate-cancer-cells
#8
Zoraya Palomera-Sanchez, Gregory W Watson, Carmen P Wong, Laura M Beaver, David E Williams, Roderick H Dashwood, Emily Ho
Androgen receptor (AR) is a transcription factor involved in normal prostate physiology and prostate cancer (PCa) development. 3,3'-Diindolylmethane (DIM) is a promising phytochemical agent against PCa that affects AR activity and epigenetic regulators in PCa cells. However, whether DIM suppresses PCa via epigenetic regulation of AR target genes is unknown. We assessed epigenetic regulation of AR target genes in LNCaP PCa cells and showed that DIM treatment led to epigenetic suppression of AR target genes involved in DNA repair (PARP1, MRE11, DNA-PK)...
May 25, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28575756/dietary-fatty-acids-modulate-adipocyte-tnfa-production-via-regulation-of-its-dna-promoter-methylation-levels
#9
Eva García-Escobar, Roberto Monastero, Sara García-Serrano, Juan M Gómez-Zumaquero, Ana Lago-Sampedro, Elehazara Rubio-Martín, Natalia Colomo, Francisca Rodríguez-Pacheco, Federico Soriguer, Gemma Rojo-Martínez
The factors regulating TNF alpha (TNFa) levels could be considered therapeutic targets against metabolic syndrome development. DNA methylation is a potent regulator of gene expression and may be associated with protein levels. In this study we investigate whether the effect of dietary fatty acids on TNFa released from adipocytes might be associated with modifications of the TNFa promoter DNA methylation status. A group of rats was assigned to three diets with a different composition of saturated, monounsaturated and polyunsaturated fatty acids...
May 25, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28570943/%C3%AE-glucosidase-inhibitory-effect-of-resveratrol-and-piceatannol
#10
Albert J Zhang, Agnes M Rimando, Cassia S Mizuno, Suresh T Mathews
Dietary polyphenols have been shown to inhibit α-glucosidase, an enzyme target of some antidiabetic drugs. Resveratrol, a polyphenol found in grapes and wine, has been reported to inhibit the activity of yeast α-glucosidase. This triggered our interest to synthesize analogs and determine their effect on mammalian α-glucosidase activity. Using either sucrose or maltose as substrate resveratrol, piceatannol and 3'-hydroxypterostilbene showed strong inhibition of mammalian α-glucosidase activity; pinostilbene, cis-desoxyrhapontigenin and trans-desoxyrhapontigenin had moderate inhibition...
May 25, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28570942/the-change-in-retinoic-acid-receptor-signaling-induced-by-prenatal-marginal-vitamin-a-deficiency-and-its-effects-on-learning-and-memory
#11
Xuan Zhang, Xingang Yuan, Lijun Chen, Hua Wei, Jie Chen, Tingyu Li
This study investigated the prenatal marginal vitamin A deficiency (mVAD)-related impairment in learning and memory and the interactions between RARα, Src and NR1. Learning and memory were assessed in adult rats that were exposed to prenatal mVAD with Morris water maze. The average escape time was longer in mVAD rats, and they passed the hidden platform fewer times during the memory retention test than normal vitamin A intake (VAN) rats. The mRNA and protein levels of RARα, Src and NR1 in mVAD rats were significantly lower than those in VAN rats...
May 25, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28570944/oral-feeding-with-polyunsaturated-fatty-acids-fosters-hematopoiesis-and-thrombopoiesis-in-healthy-and-bone-marrow-transplanted-mice
#12
Kedar Limbkar, Ankita Dhenge, Dipesh D Jadhav, Hirekodathakallu V Thulasiram, Vaijayanti Kale, Lalita Limaye
Hematopoietic stem cells play the vital role of maintaining appropriate levels of cells in blood. Therefore, regulation of their fate is essential for their effective therapeutic use. Here we report the role of polyunsaturated fatty acids (PUFAs) in regulating hematopoiesis which has not been explored well so far. Mice were fed daily for 10 days with n-6/n-3 PUFAs, viz. linoleic acid (LA), arachidonic acid (AA), alpha-linolenic acid and docosahexanoic acid (DHA) in four separate test groups with phosphate-buffered saline fed mice as control set...
May 17, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28528294/isoliquiritigenin-reduces-oxidative-damage-and-alleviates-mitochondrial-impairment-by-sirt1-activation-in-experimental-diabetic-neuropathy
#13
Veera Ganesh Yerra, Anil Kumar Kalvala, Ashutosh Kumar
Sirtuin (SIRT1) inactivation underlies the pathogenesis of insulin resistance and hyperglycaemia-associated vascular complications, but its role in diabetic neuropathy (DN) has not been yet explored. We have evaluated hyperglycaemia-induced alteration of SIRT1 signalling and the effect of isoliquiritigenin (ILQ) on SIRT1-directed AMP kinase (AMPK) and peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α) signalling in peripheral nerves of streptozotocin (STZ) (55 mg/kg, ip)-induced diabetic rats and in high glucose (30 mM)-exposed neuro2a (N2A) cells...
May 11, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28549240/dietary-salecan-reverts-partially-the-metabolic-gene-expressions-and-nmr-based-metabolomic-profiles-from-high-fat-diet-induced-obese-rats
#14
Qi Sun, Minghui Li, Xiao Yang, Xi Xu, Junsong Wang, Jianfa Zhang
Previous studies suggest that dietary salecan (a water-soluble β-glucan) effectively reduces high-fat-diet-induced adiposity through disturbing bile-acid-promoted emulsification in mice. However, the effects of salecan on metabolic genes and metabolites involved in lipid accumulation are mostly unknown. Here, we confirmed that dietary 3% and 6% salecan for 4 weeks markedly decreased fat accumulation in liver and adipose tissue in high-fat-diet rats, displaying a decrease in mRNA levels of SREBP1-C, FAS, SCD1 and ACC1 involved in de novo lipogenesis and a reduction of levels of GPAT1, DGAT1 and DGAT2 related to triglyceride synthesis...
May 5, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28501704/genetic-variation-in-slc7a2-interacts-with-calcium-and-magnesium-intakes-in-modulating-the-risk-of-colorectal-polyps
#15
Pin Sun, Xiangzhu Zhu, Martha J Shrubsole, Reid M Ness, Elizabeth A Hibler, Qiuyin Cai, Jirong Long, Zhi Chen, Guoliang Li, Lifang Hou, Walter E Smalley, Todd L Edwards, Edward Giovannucci, Wei Zheng, Qi Dai
Solute carrier family 7, member 2 (SLC7A2) gene encodes a protein called cationic amino acid transporter 2, which mediates the transport of arginine, lysine and ornithine. l-Arginine is necessary for cancer development and progression, including an important role in colorectal cancer pathogenesis. Furthermore, previous studies found that both calcium and magnesium inhibit the transport of arginine. Thus, calcium, magnesium or calcium:magnesium intake ratio may interact with polymorphisms in the SLC7A2 gene in association with colorectal cancer...
May 5, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28486173/effects-of-fish-oil-supplementation-on-prostaglandins-in-normal-and-tumor-colon-tissue-modulation-by-the-lipogenic-phenotype-of-colon-tumors
#16
Zora Djuric, Muhammad Nadeem Aslam, Becky R Simon, Ananda Sen, Yan Jiang, Jianwei Ren, Rena Chan, Tanu Soni, T M Rajendiran, William L Smith, Dean E Brenner
Dietary fish oils have potential for prevention of colon cancer, and yet the mechanisms of action in normal and tumor colon tissues are not well defined. Here we evaluated the impact of the colonic fatty acid milieu on the formation of prostaglandins and other eicosanoids. Distal tumors in rats were chemically induced to model inflammatory colonic carcinogenesis. After 21 weeks of feeding with either a fish oil diet containing an eicosapentaenoic acid/ω-6 fatty acid ratio of 0.4 or a Western fat diet, the relationships between colon fatty acids and prostaglandin E2 (PGE2) concentrations were evaluated...
April 25, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28501703/xanthohumol-a-hop-derived-prenylated-flavonoid-promotes-macrophage-reverse-cholesterol-transport
#17
Hiroshi Hirata, Harumi Uto-Kondo, Masatsune Ogura, Makoto Ayaori, Kazusa Shiotani, Ami Ota, Youichi Tsuchiya, Katsunori Ikewaki
Xanthohumol, a prominent prenyl flavonoid from the hop plant (Humulus lupulus L.), is suggested to be antiatherogenic since it reportedly increases high-density lipoprotein (HDL) cholesterol levels. It is not clear whether xanthohumol promotes reverse cholesterol transport (RCT), the most important antiatherogenic property of HDL; therefore, we investigated the effects of xanthohumol on macrophage-to-feces RCT using a hamster model as a CETP-expressing species. In vivo RCT experiments showed that xanthohumol significantly increased fecal appearance of the tracer derived from intraperitoneally injected [(3)H]-cholesterol-labeled macrophages...
April 22, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28501702/brown-adipose-tissue-activation-by-rutin-ameliorates-polycystic-ovary-syndrome-in-rat
#18
Tao Hu, Xiaoxue Yuan, Rongcai Ye, Huiqiao Zhou, Jun Lin, Chuanhai Zhang, Hanlin Zhang, Gang Wei, Meng Dong, Yuanyuan Huang, Wonchung Lim, Qingsong Liu, Hyuek Jong Lee, Wanzhu Jin
Polycystic ovary syndrome (PCOS) is a complex endocrinopathy that is characterized by anovulation, hyperandrogenism and polycystic ovary. However, there is a lack of effective treatment for PCOS at present because the pathologic cause of PCOS has not been elucidated. Although it has been known that brown adipose tissue transplantation ameliorates PCOS by activating endogenous BAT, BAT transplantation is not applicable in clinic. Therefore, BAT activation with natural compound could be an effective treatment strategy for PCOS patients...
April 22, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28499186/effect-of-betaine-on-hepatic-insulin-resistance-through-foxo1-induced-nlrp3-inflammasome
#19
Dae Hyun Kim, Seong Min Kim, Bonggi Lee, Eun Kyeong Lee, Ki Wung Chung, Kyoung Mi Moon, Hye Jin An, Kyung Mok Kim, Byung Pal Yu, Hae Young Chung
In the present study, we attempted to elucidate whether molecular modulation of inflammation by betaine through the forkhead box O1 (FOXO1)-induced NLRP3 inflammasome improves insulin resistance. Betaine is a major water-soluble component of Lycium chinense. It mainly functions as an oxidative metabolite of choline by suppressing superoxide-induced free radicals by donating methyl groups. The FOXO1 transcription factor regulates various genes involved in cellular metabolic processes related to cell death as well as oxidative stress responses through binding to the thioredoxin-interacting protein (TXNIP)...
April 22, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28486172/synergistic-effect-of-low-k-and-d-vitamin-status-on-arterial-stiffness-in-a-general-population
#20
Otto Mayer, Jitka Seidlerová, Peter Wohlfahrt, Jan Filipovský, Renata Cífková, Václava Černá, Alena Kučerová, Martin Pešta, Radka Fuchsová, Ondřej Topolčan, Kelly M C Jardon, Nadja E A Drummen, Cees Vermeer
Both vitamins K and D are nutrients with pleiotropic functions in human tissues. The metabolic role of these vitamins overlaps considerably in calcium homeostasis. We analyzed their potential synergetic effect on arterial stiffness. In a cross-sectional study, we analyzed aortic pulse wave velocity (aPWV) in 1023 subjects from the Czech post-MONICA study. Desphospho-uncarboxylated matrix γ-carboxyglutamate protein (dp-ucMGP), a biomarker of vitamin K status, was measured by sandwich ELISA and 25-hydroxyvitamin D3 (25-OH-D3) by a commercial immunochemical assay...
April 22, 2017: Journal of Nutritional Biochemistry
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