Abstract:
BACKGROUND:Elevated homocysteine is a cardiovascular risk factor in hyperlipidemia. Transsulfuration pathway provides an endogenous pathway for homocysteine conversion to antioxidant glutathione (GSH). Salvianolic acid A (Sal A) contains two molecules of caffeic acid and one molecule of danshensu that is capable of enhancing homocysteine transsulfuration, which led to the hypothesis that Sal A has activatory effect on transsulfuration pathway and this effect may have beneficial effects on both homocysteine and redox status in hyperlipidemia. METHODS AND RESULTS:To test this hypothesis, we developed a rat model of hyperlipidemia induced by high-fat diet for 16 weeks, during which rats were treated with 1 mg/kg salvianolic acid A (Sal A) for the final 4 weeks. Activities of key enzymes and metabolite profiling in the transsulfuration pathway revealed that hyperlipidemia led to elevated plasma homocysteine levels after 16-week dietary treatment, which was associated with reduced activities of homocysteine transsulfuration enzymes, cystathionine β-synthase (CBS) and cystathionine γ-lyase (CSE). The impaired transsulfuration pathway prevented homocysteine transsulfuration to cysteine, resulting in cysteine deficiency and subsequent reduction in GSH pool size. The redox status was altered in the setting of hyperlipidemia as indicated by GSH/GSSG ratio. Sal A treatment increased hepatic CBS and CSE activities, which was associated with reduced accumulation in circulating homocysteine levels and attenuated decline in hepatic cysteine content in hyperlipidemic rats. Sal A also led to an increase in GSH pool size, which subsequently caused a restored GSH/GSSG ratio. The activatory effect of Sal A on CBS was also observed in normal rats and in in vitro experiment. CONCLUSION:Our results suggest that activation of transsulfuration pathway by Sal A is a promising homocysteine-lowering approach that has beneficial effects on redox homeostasis in hyperlipidemic settings.
journal_name
Nutr Metab (Lond)journal_title
Nutrition & metabolismauthors
Zhang W,He H,Wang H,Wang S,Li X,Liu Y,Jiang H,Jiang H,Yan Y,Wang Y,Liu Xdoi
10.1186/1743-7075-10-68subject
Has Abstractpub_date
2013-12-06 00:00:00pages
68issue
1issn
1743-7075pii
1743-7075-10-68journal_volume
10pub_type
杂志文章abstract:BACKGROUND:Compared to the corresponding source of inorganic trace minerals (TM), chelated supplements are characterized by better physical heterogeneity and chemical stability and appear to be better absorbed in the gut due to possibly decreased interaction with other feed components. METHODS:This study was designed ...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-020-00520-5
更新日期:2020-10-29 00:00:00
abstract::An association between arteriosclerosis and homocysteine (Hcy) was first demonstrated in 1969. Hcy is a sulfur containing amino acid derived from the essential amino acid methionine (Met). Hyperhomocysteinemia (HHcy) was subsequently shown in several age-related pathologies such as osteoporosis, Alzheimer's disease, P...
journal_title:Nutrition & metabolism
pub_type: 杂志文章,评审
doi:10.1186/s12986-017-0233-z
更新日期:2017-12-22 00:00:00
abstract:: Microsomal triglyceride transfer protein (MTP) was first identified as a major cellular protein capable of transferring neutral lipids between membrane vesicles. Its role as an essential chaperone for the biosynthesis of apolipoprotein B (apoB)-containing triglyceride-rich lipoproteins was established after the reali...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-9-14
更新日期:2012-02-21 00:00:00
abstract:BACKGROUND:Protein energy malnutrition is commonly associated with immune dysfunctions and is a major factor in susceptibility to infectious diseases. METHODS:In this study, we evaluated the impact of protein energy malnutrition on the capacity of monocytes and macrophages to upregulate arginase, an enzyme associated ...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-11-51
更新日期:2014-10-24 00:00:00
abstract:PURPOSE:To determine the influence of menstrual irregularity, oral contraceptive use and other factors on bone mineral density (BMD) and bone size at different skeletal sites in 135 college-aged fit women. METHODS:Menstrual history, oral contraceptive use, exercise history, and nutritional factors including calcium, c...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-4-17
更新日期:2007-08-06 00:00:00
abstract:OBJECTIVE:Many studies have shown that vegetarian diet has beneficial effects on the prevention of cardiovascular diseases. However, the effect of vegetarian diet on carotid intima-media thickness (IMT), as well as the association between IMT and duration of vegetarian diet, are still unclear. The present study aims to...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-8-63
更新日期:2011-09-19 00:00:00
abstract:BACKGROUND:Secreted frizzled-related protein 5 (SFRP5) is an anti-inflammatory adipokine modulating metabolism dysfunction. This study aims to observe the effect of recombinant SFRP5 protein on nonalcoholic steatohepatitis (NASH). METHODS:We set up a prokaryotic expression system and purified the recombinant SFRP5 pro...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-017-0208-0
更新日期:2017-08-15 00:00:00
abstract:Background:Diet and exercise play important roles in ameliorating metabolic syndrome. Yunkang 10 (Camellia sinensis var. assamica) is a most cultivated tea variety for making tea in the Southwestern China. Currently, there is no report of healthy effects of Yunkang 10 green tea (YKGT) and treadmill exercise (Ex) on hig...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-020-0433-9
更新日期:2020-02-04 00:00:00
abstract:BACKGROUND:Recent data suggest that an increased level of high-density lipoprotein cholesterol (HDL-C) is not causally protective against heart disease, shifting focus to other sub-phenotypes of HDL. Prior work on the effects of dietary intakes has focused largely on HDL-C. The goal of this study was to identify the di...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-11-44
更新日期:2014-09-15 00:00:00
abstract:: Prior to the discovery of medical treatment for diabetes, carbohydrate-restriction was the predominant treatment recommendation to treat diabetes mellitus. In this commentary we argue that carbohydrate-restriction should be reincorporated into contemporary treatment studies for diabetes mellitus. ...
journal_title:Nutrition & metabolism
pub_type: 社论
doi:10.1186/1743-7075-5-10
更新日期:2008-04-09 00:00:00
abstract:: Sphingomyelin synthase (SMS) sits at the crossroads of sphingomyelin (SM), ceramide, diacylglycerol (DAG) metabolism. It utilizes ceramide and phosphatidylcholine as substrates to produce SM and DAG, thereby regulating lipid messengers which play a role in cell survival and apoptosis. Furthermore, its product SM has ...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-8-89
更新日期:2011-12-14 00:00:00
abstract:BACKGROUND:α-glucosidase inhibitors regulate postprandial hyperglycemia (PPHG) by impeding the rate of carbohydrate digestion in the small intestine and thereby hampering the diet associated acute glucose excursion. PPHG is a major risk factor for diabetic vascular complications leading to disabilities and mortality in...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-8-46
更新日期:2011-06-29 00:00:00
abstract:Background:The health benefits of dietary fibre (DF) intake on non-alcoholic fatty liver disease (NAFLD) are controversial. Thus, this large cross-sectional study aimed to determine the associations between DF intake and the prevalence of newly-diagnosed NAFLD in a large general population. Methods:A total of 23,529 p...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-019-0420-1
更新日期:2020-01-13 00:00:00
abstract:Background:Muscle protein synthesis and muscle net balance plateau after moderate protein ingestion in adults. However, it has been suggested that there is no practical limit to the anabolic response of whole-body net balance to dietary protein. Moreover, limited research has addressed the anabolic response to dietary ...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-018-0301-z
更新日期:2018-09-24 00:00:00
abstract:BACKGROUND:Many publications link high homocysteine levels to cardiovascular disease. In Spain there is little information on the prevalence of hyperhomocysteinaemia and associated vitamin factors among the general population, and less still among children. Cardiovascular risk factors in the childhood population may be...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-6-39
更新日期:2009-10-05 00:00:00
abstract:Background:It is not clear whether the frequently reported phenomenon of exercise-induced anorexia is exacerbated or blunted in warm or cold environments. Therefore, this study investigated the effects of exercise in three different environmental temperatures vs. rest, on perceptions of appetite, appetite regulating ho...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-019-0348-5
更新日期:2019-05-06 00:00:00
abstract:Background:Trehalose is well known as a functional disaccharide with anti-metabolic activities such as suppression of adipocyte hypertrophy in mice and alleviation of impaired glucose tolerance in humans. Recently, a new type of adipocyte beige cells, involved in so-called white adipocyte tissue (WAT) browning, has rec...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-019-0373-4
更新日期:2019-07-16 00:00:00
abstract::Glucocorticoids are stress hormones that modulate a large number of physiological actions involved in metabolic, inflammatory, cardiovascular and behavioral processes. The molecular mechanisms and the physiological effects of glucocorticoids have been extensively studied. However, the involvement of glucocorticoid act...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-2-3
更新日期:2005-02-02 00:00:00
abstract:BACKGROUND:Dietary n-3-polyunsaturated fatty acids (n-3-PUFA) have been shown to reduce body weight and fat mass in rodents as well as in humans in one small short-term study. We conducted this controlled randomized dietary trial to test the hypothesis that n-3-PUFA lower body weight and fat mass by reducing appetite a...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-6-24
更新日期:2009-05-29 00:00:00
abstract:BACKGROUND:Holotranscobalamin, cobalamin-saturated transcobalamin, is the minor fraction of circulating cobalamin (vitamin B12), which is available for cellular uptake and hence is physiologically relevant. Currently, no method allows simple, direct quantification of holotranscobalamin. We now report on the identificat...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-3-3
更新日期:2006-01-04 00:00:00
abstract:BACKGROUND:Obesity is a major risk factor for insulin resistance, type 2 diabetes, and stroke. Flavonoids are effective antioxidants that protect against these chronic diseases. In this study, we evaluated the effects of sudachitin, a polymethoxylated flavonoid found in the skin of the Citrus sudachi fruit, on glucose,...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-11-32
更新日期:2014-07-04 00:00:00
abstract:BACKGROUND:The alanine aminotransferase (ALT)/aspartate aminotransferase (AST) ratio is reportedly associated with insulin resistance (IR). However, few studies have explored the relationship between the ALT/AST ratio and IR in the Chinese population. Here, we aimed to explore whether the ALT/AST ratio is associated an...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-017-0219-x
更新日期:2017-10-10 00:00:00
abstract:BACKGROUND:Total body water (TBW) estimations have been used to estimate body composition, particularly fat-free mass, to aid in nutritional interventions, and to monitor hydration status. In the past, bioimpedance spectroscopy (BIS) devices have been used to estimate TBW. Previous investigations have examined the vali...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-5-7
更新日期:2008-03-19 00:00:00
abstract::Propolis is a sticky, resinous material gather from plants and is blended with wax and other constituents. It is reported to have anti-inflammatory, anti-oxidative and blood glucose-lowering properties. This review aims to summarise evidences for the cellular and molecular mechanism of Propolis in inflammation, oxidat...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-020-00485-5
更新日期:2020-08-12 00:00:00
abstract:BACKGROUND:Diet-induced hepatic steatosis is highly associated with nonalcoholic fatty liver disease, which is related to the development of metabolic syndrome. While advanced stage nonalcoholic hepatic steatosis and steatohepatitis (NASH) result ultimately in fibrosis and cirrhosis, the molecular basis for lipid dropl...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-015-0012-7
更新日期:2015-05-20 00:00:00
abstract:BACKGROUND:Increasing evidence suggests that diets high in polyunsaturated fatty acids (PUFA) confer health benefits by improving insulin sensitivity and lipid metabolism in liver, muscle and adipose tissue. METHODS:The present study investigates metabolic responses in two different lines of mice either selected for h...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-8-56
更新日期:2011-08-11 00:00:00
abstract::Nutrition & Metabolism has grown considerably in the ten years since its first article was published. To see how papers published in the journal had an impact we have identified some of the most popular articles in order to measure their influence, observe which fields are important to our readers, and try to explain ...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-11-13
更新日期:2014-03-19 00:00:00
abstract:BACKGROUND:Recent data from this laboratory suggest that components of dairy foods may serve as activators of SIRT1 (Silent Information Regulator Transcript 1), and thereby participate in regulation of glucose and lipid metabolism. In this study, an ex-vivo/in-vitro approach was used to examine the integrated effects o...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-8-91
更新日期:2011-12-20 00:00:00
abstract:Background:High levels circulating saturated fatty acids are associated with diabetes, obesity and hyperlipidemia. In heart, the accumulation of saturated fatty acids has been determined to play a role in the development of heart failure and diabetic cardiomyopathy. High-density lipoprotein (HDL) has been reported to p...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-019-0356-5
更新日期:2019-05-28 00:00:00
abstract::Nutritional research in sickle cell disease has been the focus in recent times owing to not only specific nutritional deficiencies, but also the improvements associated with less painful episodes. Though hydroxyurea remains the drug of choice, certain adverse health effects on long term supplementation makes room for ...
journal_title:Nutrition & metabolism
pub_type: 杂志文章,评审
doi:10.1186/s12986-016-0109-7
更新日期:2016-08-08 00:00:00