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Journal of Nutritional Biochemistry

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https://www.readbyqxmd.com/read/28528294/isoliquiritigenin-reduces-oxidative-damage-and-alleviates-mitochondrial-impairment-by-sirt1-activation-in-experimental-diabetic-neuropathy
#1
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/28501704/genetic-variation-in-slc7a2-interacts-with-calcium-and-magnesium-intakes-in-modulating-the-risk-of-colorectal-polyps
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
https://www.readbyqxmd.com/read/28454041/long-term-intake-of-a-high-protein-diet-increases-liver-triacylglycerol-deposition-pathways-and-hepatic-signs-of-injury-in-rats
#8
Rubén Díaz-Rúa, Jaap Keijer, Andreu Palou, Evert M van Schothorst, Paula Oliver
Intake of high-protein (HP) diets has increased over the last years, mainly due to their popularity for body weight control. Liver is the main organ handling ingested macronutrients and it is associated with the beginning of different pathologies. We aimed to deepen our knowledge on molecular pathways affected by long-term intake of an HP diet. We performed a transcriptome analysis on liver of rats chronically fed with a casein-rich HP diet and analyzed molecular parameters related to liver injury. Chronic increase in the dietary protein/carbohydrate ratio up-regulated processes related with amino acid uptake/metabolism and lipid synthesis, promoting a molecular environment indicative of hepatic triacylglycerol (TG) deposition...
April 19, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28458139/chlorogenic-acid-inhibits-hepatocellular-carcinoma-in-vitro-and-in-vivo
#9
Yuan Yan, Na Liu, Ni Hou, Lei Dong, Jie Li
Curative treatment of patients with hepatocellular carcinoma (HCC) is poor. There is an urgent need to develop more effective strategies for the chemoprevention of HCC. Chlorogenic acid (CGA), a type of polyphenol present in the diet, especially from coffee, has many biological activities. Patients with viral hepatitis who drank coffee everyday experienced a reduction in the incidence of HCC. In the present study, we evaluated the effects of CGA on HCC. CGA inhibited the proliferation of HepG2 cells in vitro and the progression of HepG2 xenograft in vivo...
April 18, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28458138/quercetin-promotes-motor-and-sensory-function-recovery-following-sciatic-nerve-crush-injury-in-c57bl-6j-mice
#10
Ming-Ming Chen, Jing Qin, Shu-Jian Chen, Le-Meng Yao, Lu-Yong Zhang, Zhi-Qi Yin, Hong Liao
Injuries and diseases that occur in the nervous system are common and have few effective treatments. Previous studies have shown that quercetin has a therapeutic effect on nervous system injuries, but its potential effects on and mechanisms of action related to behavioral recovery and axonal regrowth have not been investigated. Here, we showed that quercetin administration promotes behavioral recovery following sciatic nerve-crush injury in mice. Long-term evaluation showed that mice administered 20 mg·kg(-1)·day(-1) quercetin for 35 days had a greater sensorimotor recovery compared with all other treatment groups...
April 17, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28433924/the-metabolic-fate-of-isotopically-labeled-trimethylamine-n-oxide-tmao-in-humans
#11
Siraphat Taesuwan, Clara E Cho, Olga V Malysheva, Erica Bender, Julia H King, Jian Yan, Anna E Thalacker-Mercer, Marie A Caudill
Trimethylamine-N-oxide (TMAO) is associated with chronic disease risk. However, little is known about the metabolic fate of dietary TMAO. This study sought to quantitatively elucidate the metabolic fate of orally consumed TMAO in humans. As part of a crossover feeding study, healthy young men (n=40) consumed 50-mg deuterium-labeled methyl d9-TMAO (d9-TMAO), and enrichments of TMAO and its derivatives were measured in blood for 6 h, urine and stool, as well as skeletal muscle in a subset of men (n=6). Plasma d9-TMAO was detected as early as 15 min, increased until 1 h and remained elevated through the 6-h period...
April 13, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28482236/ablation-of-%C3%AE-%C3%AE-carotene-9-10-oxygenase-2-remodels-the-hypothalamic-metabolome-leading-to-metabolic-disorders-in-mice
#12
Xin Guo, Lei Wu, Yi Lyu, Winyoo Chowanadisai, Stephen L Clarke, Edralin A Lucas, Brenda J Smith, Hui He, Weiqun Wang, Denis M Medeiros, Dingbo Lin
β,β-Carotene-9',10'-oxygenase 2 (BCO2) is a protein localized to the inner membrane of mitochondria. It was initially discovered as an enzyme that catalyzes the asymmetric cleavage of carotenoids. Systemic depletion of BCO2 causes increased food intake and impaired hepatic lipid metabolism in mice. The aim of this current study was to determine the extent to which BCO2 exerts its role in hypothalamic nutrient metabolism and feeding behavior through remodeling the hypothalamic metabolome in mice. Male BCO2 knockout (KO) and the isogenic wild-type 129S6 (WT) mice at 6 weeks of age were used for metabolic and cytokine and hypothalamic metabolomics and biochemical analysis...
April 12, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28456081/gamma-tocotrienol-profoundly-alters-sphingolipids-in-cancer-cells-by-inhibition-of-dihydroceramide-desaturase-and-possibly-activation-of-sphingolipid-hydrolysis-during-prolonged-treatment
#13
Yumi Jang, Xiayu Rao, Qing Jiang
Vitamin E gamma-tocotrienol (γTE) is known to have anticancer effects, but mechanisms underlying these actions are not clear. Here using liquid chromatography tandem mass spectrometry, we show that γTE induced marked changes of sphingolipids including rapid elevation of dihydrosphingosine and dihydroceramides (dhCers) in various types of cancer cells. The elevation of dihydrosphingolipids coincided with increased cellular stress, as indicated by JNK phosphorylation, and was prior to any sign of induction of apoptosis...
April 12, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28437736/murine-diet-induced-obesity-remodels-cardiac-and-liver-mitochondrial-phospholipid-acyl-chains-with-differential-effects-on-respiratory-enzyme-activity
#14
E Madison Sullivan, Amy Fix, Miranda J Crouch, Genevieve C Sparagna, Tonya N Zeczycki, David A Brown, Saame Raza Shaikh
Cardiac phospholipids, notably cardiolipin, undergo acyl chain remodeling and/or loss of content in aging and cardiovascular diseases, which is postulated to mechanistically impair mitochondrial function. Less is known about how diet-induced obesity influences cardiac phospholipid acyl chain composition and thus mitochondrial responses. Here we first tested if a high fat diet remodeled murine cardiac mitochondrial phospholipid acyl chain composition and consequently disrupted membrane packing, supercomplex formation and respiratory enzyme activity...
April 12, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28437713/reference-intervals-for-serum-24-25-dihydroxyvitamin-d-and-the-ratio-with-25-hydroxyvitamin-d-established-using-a-newly-developed-lc-ms-ms-method
#15
Jonathan C Y Tang, Holly Nicholls, Isabelle Piec, Christopher J Washbourne, John J Dutton, Sarah Jackson, Julie Greeves, William D Fraser
24,25(OH)2D is the product of 25(OH)D catabolism by CYP24A1. The measurement of serum 24,25(OH)2D concentration may serve as an indicator of vitamin D catabolic status and the relative ratio with 25(OH)D can be used to identify patients with inactivating mutations in CYP24A1. We describe a LC-MS/MS method to determine: (1) the relationships between serum 24,25(OH)2D and 25(OH)D; (2) serum reference intervals in healthy individuals; (3) the diagnostic accuracy of 24,25(OH)2D measurement as an indicator for vitamin D status; 4) 24,25(OH)2D cut-off value for clinically significant change between inadequate and sufficient 25(OH)D status...
April 12, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28432876/effect-of-pistachio-consumption-on-the-modulation-of-urinary-gut-microbiota-related-metabolites-in-prediabetic-subjects
#16
Pablo Hernández-Alonso, Daniel Cañueto, Simona Giardina, Jordi Salas-Salvadó, Nicolau Cañellas, Xavier Correig, Mònica Bulló
The specific nutritional composition of nuts could affect different metabolic pathways involved in a broad range of metabolic diseases. We therefore investigated whether chronic consumption of pistachio nuts modifies the urine metabolome in prediabetic subjects. We designed a randomized crossover clinical trial in 39 prediabetic subjects. They consumed a pistachio-supplemented diet (PD, 50% carbohydrates, 33% fat, including 57 g/d of pistachios daily) and a control diet (CD, 55% carbohydrates, 30% fat) for 4 months each, separated by a 2-week wash-out...
April 12, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28445792/vitamin-d-supplementation-restores-the-blunted-muscle-protein-synthesis-response-in-deficient-old-rats-through-an-impact-on-ectopic-fat-deposition
#17
Audrey Chanet, Jérôme Salles, Christelle Guillet, Christophe Giraudet, Alexandre Berry, Véronique Patrac, Carla Domingues-Faria, Camille Tagliaferri, Katia Bouton, Justine Bertrand-Michel, Miriam Van Dijk, Marion Jourdan, Yvette Luiking, Sjors Verlaan, Corinne Pouyet, Philippe Denis, Yves Boirie, Stéphane Walrand
We investigated the impact of vitamin D deficiency and repletion on muscle anabolism in old rats. Animals were fed a control (1 IU vitamin D3/g, ctrl, n=20) or a vitamin D-depleted diet (VDD; 0 IU, n=30) for 6 months. A subset was thereafter sacrificed in the control (ctrl6) and depleted groups (VDD6). Remaining control animals were kept for 3 additional months on the same diet (ctrl9), while a part of VDD rats continued on a depleted diet (VDD9) and another part was supplemented with vitamin D (5 IU, VDS9)...
April 8, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28433925/low-dose-pollutant-mixture-triggers-metabolic-disturbances-in-female-mice-leading-to-common-and-specific-features-as-compared-to-a-high-fat-diet
#18
Emmanuel Labaronne, Claudie Pinteur, Nathalie Vega, Sandra Pesenti, Benoit Julien, Emmanuelle Meugnier-Fouilloux, Hubert Vidal, Danielle Naville, Brigitte Le Magueresse-Battistoni
Environmental pollutants are potential etiologic factors of obesity and diabetes that reach epidemic proportions worldwide. However, it is important to determine if pollutants could exert metabolic defects without directly inducing obesity. The metabolic disturbances triggered in nonobese mice lifelong exposed to a mixture of low-dose pollutants (2,3,7,8-tetrachlorodibenzo-p-dioxine, polychlorinated biphenyl 153, diethylhexyl-phthalate, and bisphenol A) were compared with changes provoked by a high-fat high-sucrose (HFHS) diet not containing the pollutant mixture...
April 8, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28437712/raspberry-pomace-alters-cecal-microbial-activity-and-reduces-secondary-bile-acids-in-rats-fed-a-high-fat-diet
#19
Bartosz Fotschki, Jerzy Juśkiewicz, Adam Jurgoński, Neil Rigby, Michał Sójka, Krzysztof Kołodziejczyk, Alan Mackie, Zenon Zduńczyk
The profile of bile acids (BA) largely depends on the enzymatic activity of the microbiota, but this can be modulated by the dietary addition of biologically active compounds, e.g., polyphenols and polyunsaturated fatty acids. The aim of this study was to examine the effect of dietary raspberry pomace as a rich source of biologically active compounds on microbial activity and the BA profile in the caecum of rats fed a high-fat diet. Wistar rats were fed the standard diet AIN-93, a high-fat diet or a modified high-fat diet enriched with 7% different types of processed raspberry pomaces produced by standard grinding and fine grinding, with or without seeds...
April 7, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28433923/uhplc-q-orbitrap-hrms-based-global-metabolomics-reveal-metabolome-modifications-in-plasma-of-young-women-after-cranberry-juice-consumption
#20
Haiyan Liu, Timothy J Garrett, Zhihua Su, Christina Khoo, Liwei Gu
Plasma metabolome in young women following cranberry juice consumption were investigated using a global UHPLC-Q-Orbitrap-HRMS approach. Seventeen female college students, between 21 and 29 years old, were given either cranberry juice or apple juice for three days using a cross-over design. Plasma samples were collected before and after juice consumption. Plasma metabolomes were analyzed using UHPLC-Q-Orbitrap-HRMS followed by orthogonal partial least squares-discriminant analyses (OPLS-DA). S-plot was used to identify discriminant metabolites...
April 7, 2017: Journal of Nutritional Biochemistry
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