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Nutrition Research

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https://www.readbyqxmd.com/read/28676202/hexacosanol-reduces-plasma-and-hepatic-cholesterol-by-activation-of-amp-activated-protein-kinase-and-suppression-of-sterol-regulatory-element-binding-protein-2-in-hepg2-and-c57bl-6j-mice
#1
Ji Hae Lee, Yaoyao Jia, Trung Thanh Thach, Yuri Han, Bobae Kim, Chunyan Wu, Yeonji Kim, Woo Duck Seo, Sung-Joon Lee
Policosanols have hypocholesterolemic activity; however, the molecular mechanism of the policosanol effects is currently poorly characterized. We hypothesized that hexacosanol, a policosanol compound derived from barley sprout, may decrease cellular and plasma cholesterol levels; we thus investigated the hypocholesterolemic activity and mechanism of hexacosanol on both hepatocytes and high-fat-induced obese C57BL/6J mice. The reduction of total cholesterol, free cholesterol, and cholesteryl ester concentrations was confirmed in hexacosanol-stimulated hepatocytes (-38%, -33%, and -53%, respectively)...
May 26, 2017: Nutrition Research
https://www.readbyqxmd.com/read/28739056/supplementation-with-vitis-vinifera-l-skin-extract-improves-insulin-resistance-and-prevents-hepatic-lipid-accumulation-and-steatosis-in-high-fat-diet-fed-mice
#2
Izabelle Barcellos Santos, Graziele Freitas de Bem, Viviane Silva Cristino Cordeiro, Cristiane Aguiar da Costa, Lenize Costa Reis Marins de Carvalho, Ana Paula Machado da Rocha, Gisele França da Costa, Dayane Teixeira Ognibene, Roberto Soares de Moura, Angela Castro Resende
Nonalcoholic fatty liver disease is one of the most common complications of obesity. The Vitis vinifera L. grape skin extract (ACH09) is an important source of polyphenols, which are related to its antioxidant and antihyperglycemic activities. We hypothesized that ACH09 could also exert beneficial effects on metabolic disorders associated with obesity and evaluated ACH09's influence on high-fat (HF) diet-induced hepatic steatosis and insulin resistance in C57BL/6 mice. The animals were fed a standard diet (10% fat, control) or an HF diet (60% fat, HF) with or without ACH09 (200mg/[kg d]) for 12weeks...
July 2017: Nutrition Research
https://www.readbyqxmd.com/read/28739055/dietary-fatty-acids-were-not-independently-associated-with-lipoprotein-subclasses-in-elderly-women
#3
Fatemeh Ramezan Alaghehband, Maria Lankinen, Miika Värri, Joonas Sirola, Heikki Kröger, Arja T Erkkilä
Dietary fatty acids are known to affect serum lipoproteins; however, little is known about the associations between consumption of dietary fatty acids and lipoprotein subclasses. In this study, we hypothesized that there is an association between dietary fatty acids and lipoprotein subclasses and investigated the cross-sectional association of dietary fat intake with subclasses of lipoproteins in elderly women. Altogether, 547 women (aged ≥65 years) who were part of OSTPRE cohort participated. Dietary intake was assessed by 3-day food records, lifestyle, and health information obtained through self-administrated questionnaires, and lipoprotein subclasses were determined by nuclear magnetic resonance spectroscopy...
July 2017: Nutrition Research
https://www.readbyqxmd.com/read/28739054/plasma-trans-fatty-acid-concentrations-continue-to-be-associated-with-metabolic-syndrome-among-us-adults-after-reductions-in-trans-fatty-acid-intake
#4
Zefeng Zhang, Cathleen Gillespie, Quanhe Yang
No study examined and compared the association between intake of trans-fatty acids (TFAs) and risk of metabolic syndrome before and after significant reduction of TFA intakes in the US population. We hypothesized that the relationship might remain significant after substantial reduction of TFA intakes in the population. We used data on 1442 and 2233 adults aged ≥20 years from the National Health and Nutrition Examination Survey 1999-2000 and 2009-2010, respectively. Multivariable logistic regression analysis was used to assess the association between plasma TFA concentrations and metabolic syndrome, including each of its 5 components...
July 2017: Nutrition Research
https://www.readbyqxmd.com/read/28739053/glucomannan-consumption-elevates-colonic-alkaline-phosphatase-activity-by-up-regulating-the-expression-of-iap-i-which-is-associated-with-increased-production-of-protective-factors-for-gut-epithelial-homeostasis-in-high-fat-diet-fed-rats
#5
Yukako Okazaki, Tetsuyuki Katayama
We previously reported that consumption of glucomannan-containing food (lily bulb) modulates gut microbiota and increases gut immunoglobulin A (IgA, index of intestinal immune function), mucins (index of intestinal barrier function), and colonic alkaline phosphatase (ALP) activity in rats fed a high-fat (HF) diet. Small intestinal ALP has an established protective effect in inflammatory diseases, whereas little is known about the function of colonic ALP activity. We hypothesized that dietary glucomannan would increase colonic ALP activity and the gene expression in rats fed an HF diet...
July 2017: Nutrition Research
https://www.readbyqxmd.com/read/28739052/a-51-item-calcium-focused-food-frequency-questionnaire-is-a-reliable-tool-to-assess-dietary-calcium-intake-in-postmenopausal-women
#6
Angel M Ong, Hope A Weiler, Michelle Wall, David Goltzman, Susan J Whiting, Stella S Daskalopoulou, Suzanne N Morin
Given the lack in a valid biomarker to assess dietary calcium intake (dCai), reproducible estimation of usual dCai is crucial for better understanding of its interaction with health outcomes in specific populations. This study tested the hypothesis that a calcium-focused food frequency questionnaire (FFQ) may be used to estimate dCai of women ≥50 years residing in a multicultural environment (Montreal, Canada). One hundred and eight women (age, 63.1±7.7 years; 98% postmenopausal) completed the FFQ twice and 4 nonconsecutive 24-hour recalls (24HRs) over 1 month...
July 2017: Nutrition Research
https://www.readbyqxmd.com/read/28739051/effectiveness-of-nutritional-and-exercise-interventions-to-improve-body-composition-and-muscle-strength-or-function-in-sarcopenic-obese-older-adults-a-systematic-review
#7
REVIEW
Christos Theodorakopoulos, Jacklyn Jones, Elaine Bannerman, Carolyn A Greig
Although sarcopenic obesity (SO) poses a major public health concern, a robust approach for the optimization of body composition and strength/function in SO has not yet been established. The purpose of this systematic review was to assess the effectiveness of nutritional (focusing on energy and protein modulation) and exercise interventions, either individually or combined, on body composition and strength/function in older adults with SO. MEDLINE, the Cochrane Central Register of Controlled Trials, CINAHL and SPORTDiscus were searched...
July 2017: Nutrition Research
https://www.readbyqxmd.com/read/28739050/reduced-water-intake-deteriorates-glucose-regulation-in-patients-with-type-2-diabetes
#8
Evan C Johnson, Costas N Bardis, Lisa T Jansen, J D Adams, Tracie W Kirkland, Stavros A Kavouras
Epidemiological research has demonstrated that low daily total water intake is associated with increased diagnosis of hyperglycemia. Possible mechanisms for this increase include hormones related to the hypothalamic pituitary axis as well as the renin-angiotensin-aldosterone system (RAAS). Therefore, the hypothesis of the present study was that acute low water intake would result in differential hormonal profiles and thus impaired blood glucose regulation during an oral glucose tolerance test (OGTT) in people with type 2 diabetes mellitus (T2DM)...
July 2017: Nutrition Research
https://www.readbyqxmd.com/read/28739049/polyporus-and-bupleuri-radix-effectively-alter-peripheral-circadian-clock-phase-acutely-in-male-mice
#9
Hiroaki Motohashi, Haruna Sukigara, Yu Tahara, Keisuke Saito, Mayu Yamazaki, Takuya Shiraishi, Yosuke Kikuchi, Atsushi Haraguchi, Shigenobu Shibata
In mammals, daily physiological events are precisely regulated by an internal circadian clock system. An important function of this system is to readjust the phase of the clock daily. In Japan, traditional herb medicines, so-called crude drugs (Shoyaku), are widely used for many diseases, and some are reported to affect circadian clock impairment, suggesting that some of them might have an ability to modify clock gene expression rhythms. Therefore, from selected 40 crude drugs, finding candidates that control the circadian clock phases was the first purpose of this study...
July 2017: Nutrition Research
https://www.readbyqxmd.com/read/28739048/weight-loss-maintenance-a-losing-battle
#10
EDITORIAL
Jennifer C Kerns
No abstract text is available yet for this article.
July 2017: Nutrition Research
https://www.readbyqxmd.com/read/28633874/proportional-bias-between-dual-energy-x-ray-absorptiometry-and-bioelectrical-impedance-analysis-varies-based-on-sex-in-active-adults-consuming-high-and-low-carbohydrate-diets
#11
Grant M Tinsley
Dual-energy x-ray absorptiometry (DXA) and bioelectrical impedance analysis (BIA) are common methods of body composition assessment, but the agreement between these methods varies. Bias between DXA and single-frequency BIA was evaluated at 6 different time points in 48 active male and female adults consuming standardized high- and low-carbohydrate diets. It was hypothesized that fixed and proportional biases exist between DXA and BIA but that the extent of bias does not differ based on sex. Substantial fixed bias was present for estimates obtained by DXA and BIA, and both men and women exhibited proportional bias for fat mass (FM) and fat-free mass (FFM)...
June 2017: Nutrition Research
https://www.readbyqxmd.com/read/28633873/elental%C3%A2-amino-acid-component-has-protective-effects-on-primary-cultured-hepatocytes-and-a-rat-model-of-acute-liver-injury
#12
Hirokazu Miki, Katsuji Tokuhara, Masaharu Oishi, Yoshito Tanaka, Richi Nakatake, Yosuke Ueyama, Masaki Kaibori, Mikio Nishizawa, Tadayoshi Okumura, Masanori Kon
Amino acids can exert protective effects on the liver either when administered as a medication or following an operation. In this study, we examined the protective effects of amino acids on the liver using in vitro and in vivo models by studying their influence on the induction of inducible nitric oxide synthase (iNOS) and nitric oxide production as a liver injury marker in cultured hepatocytes and liver-protective effects in d-galactosamine and lipopolysaccharide (GalN/LPS)-treated rats, respectively. Primary cultured rat hepatocytes were treated with interleukin (IL)-1β in the presence or absence of Elental® amino acid component (EleAA; 17 amino acids)...
June 2017: Nutrition Research
https://www.readbyqxmd.com/read/28633872/frozen-yogurt-and-ice-cream-were-less-healthy-than-yogurt-and-adding-toppings-reduced-their-nutrition-value-evidence-from-1999-2014-national-health-and-nutrition-examination-survey
#13
Ruopeng An, Ning Jiang
It was hypothesized that frozen yogurt and ice cream would be less healthy than yogurt. We examined daily energy and nutrient intake from yogurt, frozen yogurt, and ice cream among US adults. In-person 24-hour dietary recall data (n=6453) came from the 1999-2014 National Health and Nutrition Examination Survey. Regression analyses were performed to examine the differences in energy/nutrient intake from frozen yogurt and ice cream (with/without toppings) in comparison to yogurt. Approximately 5.3%, 0.9%, and 14...
June 2017: Nutrition Research
https://www.readbyqxmd.com/read/28633871/high-fat-diet-induced-plasma-protein-and-liver-changes-in-obese-rats-can-be-attenuated-by-melatonin-supplementation
#14
Prapimpun Wongchitrat, Paul Klosen, Supitcha Pannengpetch, Kuntida Kitidee, Piyarat Govitrapong, Chartchalerm Isarankura-Na-Ayudhya
Obesity triggers changes in protein expression in various organs that might participate in the pathogenesis of obesity. Melatonin has been reported to prevent or attenuate such pathological protein changes in several chronic diseases. However, such melatonin effects on plasma proteins have not yet been studied in an obesity model. Using a proteomic approach, we investigated the effect of melatonin on plasma protein profiles after rats were fed a high-fat diet (HFD) to induce obesity. We hypothesized that melatonin would attenuate abnormal protein expression in obese rats...
June 2017: Nutrition Research
https://www.readbyqxmd.com/read/28633870/omega-3-free-fatty-acids-attenuate-insulin-promoted-breast-cancer-cell-proliferation
#15
Yang Guo, Sheng-Long Zhu, Yi-Kuan Wu, Zhao He, Yong-Quan Chen
High insulin levels in obese people are considered as a risk factor to induce breast carcinogenesis. And consumption of fish oils which mainly contain omega-3 fatty acids is associated with a reduced risk of breast cancer. However, whether omega-3 free fatty acids (FFAs) modulate insulin signaling pathway to prevent breast cancer is poorly understood. The current study tested the hypothesis that omega-3 FFAs attenuate insulin-induced breast cancer cell proliferation and regulate insulin signaling pathway. We show here that omega-3 FFAs attenuate MCF-7 cell proliferation and Akt and Erk1/2 phosphorylation levels stimulated by insulin...
June 2017: Nutrition Research
https://www.readbyqxmd.com/read/28633869/baccaurea-angulata-fruit-juice-ameliorates-altered-hematological-and-biochemical-biomarkers-in-diet-induced-hypercholesterolemic-rabbits
#16
Idris Adewale Ahmed, Maryam Abimbola Mikail, Muhammad Ibrahim
Hypercholesterolemia is an important risk factor linked to the alteration of blood hematology and clinical chemistry associated with the development and progression of atherosclerosis. Previous studies have demonstrated the safety and potential health benefits of Baccaurea angulata (BA) fruit. We hypothesized that the oral administration of BA fruit juice could ameliorate the alteration in the hematological and biochemical biomarkers of diet-induced hypercholesterolemic rabbits. The aim of this study was to investigate the effects of different doses of BA juice on the hematological and biochemical biomarkers in normo- and hypercholesterolemic rabbits...
June 2017: Nutrition Research
https://www.readbyqxmd.com/read/28633868/daidzein-stimulates-osteogenesis-facilitating-proliferation-differentiation-and-antiapoptosis-in-human-osteoblast-like-mg-63-cells-via-estrogen-receptor-dependent-mek-erk-and-pi3k-akt-activation
#17
Xin Jin, Jing Sun, Bo Yu, Yue Wang, Wei Jia Sun, Jing Yang, Su Hui Huang, Wen Li Xie
Daidzein, a natural soy isoflavone, has a structure similar to estradiol and exhibiting bone-sparing effects against osteoporosis. However, the molecular mechanisms of osteogenesis remain unclear. We hypothesized that daidzein stimulates osteogenesis through estrogen receptor (ER)-dependent signal pathways. To test this hypothesis, we investigated the effects of daidzein compared with 17β-estradiol on proliferation, differentiation, and cisplatin-induced apoptosis in human osteoblast-like MG-63 cells containing 2 ER isoforms...
June 2017: Nutrition Research
https://www.readbyqxmd.com/read/28633867/review-of-a-causal-role-of-fructose-containing-sugars-in-myocardial-susceptibility-to-ischemia-reperfusion-injury
#18
REVIEW
Gerald J Maarman, Amy E Mendham, Kim Lamont, Cindy George
In 2012, the World Health Organization Global Status Report on noncommunicable diseases showed that 7.4 million deaths were due to ischemic heart disease. Consequently, cardiovascular disease is a significant health burden, especially when partnered with comorbidities such as obesity, metabolic syndrome, and type 2 diabetes mellitus. Of note, these diseases can all be induced or exacerbated by diet. Carbohydrates, in particular, fructose and glucose, generally form the largest part of the human diet. Accumulating evidence from animal studies suggests that if large amounts of fructose are consumed either in isolation or in combination with glucose (fructose-containing sugars), myocardial susceptibility to ischemia/reperfusion (I/R) injury increases...
June 2017: Nutrition Research
https://www.readbyqxmd.com/read/28633866/tea-consumption-may-decrease-the-risk-of-osteoporosis-an-updated-meta-analysis-of-observational-studies
#19
REVIEW
Ming Guo, Hua Qu, Lin Xu, Da-Zhuo Shi
Several epidemiological investigations have evaluated the correlation between tea consumption and risk of osteoporosis, but the results are inconsistent. Therefore, we conducted an updated meta-analysis of observational studies to assess this association. We searched for all relevant studies including cohort, cross-sectional, and case-control studies published from database inception to July 15, 2016, using MEDLINE EMBASE, and Cochrane Library. Polled odds ratios (ORs) were calculated using the random-effect model...
June 2017: Nutrition Research
https://www.readbyqxmd.com/read/28673468/consumption-of-a-liquid-high-fat-meal-increases-triglycerides-but-decreases-high-density-lipoprotein-cholesterol-in-abdominally-obese-subjects-with-high-postprandial-insulin-resistance
#20
Feng Wang, Huixia Lu, Fukang Liu, Huizhen Cai, Hui Xia, Fei Guo, Yulan Xie, Guiling Huang, Miao Miao, Guofang Shu, Guiju Sun
Abdominal obesity is associated with an increased risk of insulin resistance, which may be a potential contributor to dyslipidemia. However, the relationship between postprandial insulin resistance and lipid metabolism in abdominally obese subjects remains unknown. We hypothesized that postprandial dyslipidemia would be exaggerated in abdominally obese subjects with high postprandial insulin resistance. To test this hypothesis, serum glucose, insulin, triglycerides, total cholesterol, high-density lipoprotein cholesterol, and apolipoprotein B were measured at baseline and postprandial state at 0...
May 17, 2017: Nutrition Research
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