Abstract:
:How much vitamin E is enough? An established use of supplemental vitamin E in humans is in the prevention and therapy of deficiency symptoms. The cause of vitamin E deficiency, characterized by peripheral neuropathy and ataxia, is usually malabsorption-a result of fat malabsorption or genetic abnormalities in lipoprotein metabolism. Genetic abnormalities in the hepatic alpha-tocopherol transfer protein also cause vitamin E deficiency-defects in this protein cause an impairment in plasma vitamin E transport. Impaired delivery of vitamin E to tissues, thereby, results in deficiency symptoms. Also discussed is the use of supplemental vitamin E in chronic diseases such as ischemic heart disease, atherosclerosis, diabetes, cataracts, Parkinson's disease, Alzheimer's disease, and impared immune function, as well as in subjects receiving total parenterol nutrition. In healthy individuals, a daily intake of about 15-30 mg of alpha-tocopherol is recommended to obtain "optimal plasma alpha-tocopherol concentrations" (30 microM or greater).
journal_name
Annu Rev Nutrjournal_title
Annual review of nutritionauthors
Traber MG,Sies Hdoi
10.1146/annurev.nu.16.070196.001541subject
Has Abstractpub_date
1996-01-01 00:00:00pages
321-47eissn
0199-9885issn
1545-4312journal_volume
16pub_type
杂志文章,评审abstract::In the past, alcoholic liver disease was attributed exclusively to dietary deficiencies, but experimental and judicious clinical studies have now established alcohol's hepatotoxicity. Despite an adequate diet, it can contribute to the entire spectrum of liver diseases, mainly by generating oxidative stress through its...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nutr.20.1.395
更新日期:2000-01-01 00:00:00
abstract::Trans fatty acids raise plasma low-density lipoprotein (LDL) cholesterol levels in volunteers when exchanged for cis unsaturated fatty acids in the diet. In addition, trans fatty acids may lower high-density lipoprotein (HDL) cholesterol levels and raise triglyceride and lipoprotein(a) levels in plasma. Trans and cis ...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nu.15.070195.002353
更新日期:1995-01-01 00:00:00
abstract::Birth and adaptation to extrauterine life involve major shifts in the protein and energy metabolism of the human newborn. These include a shift from a state of continuous supply of nutrients including amino acids from the mother to cyclic periodic oral intake, a change in the redox state of organs, thermogenesis, and ...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nutr.28.061807.155333
更新日期:2008-01-01 00:00:00
abstract::Lipolysis of white adipose tissue triacylglycerol stores results in the liberation of glycerol and nonesterified fatty acids that are released into the vasculature for use by other organs as energy substrates. In response to changes in nutritional state, lipolysis rates are precisely regulated through hormonal and bio...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nutr.27.061406.093734
更新日期:2007-01-01 00:00:00
abstract::During the recent resurgence of interest in the clinical uses of vitamin E, one of the major foci of attention has been the neurologic role of vitamin E in humans. Studies in patients with secondary vitamin E deficiency, caused by fat malabsorption disorders and total parenteral nutrition lacking an adequate supply of...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nu.08.070188.002031
更新日期:1988-01-01 00:00:00
abstract::Thirty years ago, it was suggested that maternal intake of certain vitamins during pregnancy affected the incidence of serious fetal malformations. Subsequent research has revealed that folate (folic acid), a B vitamin, plays a crucial role in the development of the central nervous system during the early weeks of ges...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nu.16.070196.000445
更新日期:1996-01-01 00:00:00
abstract::A full review of the strengths and limitations of the various methods used to define amino acid requirements is provided. The focus is on the recent development of carbon oxidation techniques such as indicator amino acid oxidation and 24-h amino acid balance to determine dietary indispensable (essential) amino acid ne...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nutr.23.011702.073247
更新日期:2003-01-01 00:00:00
abstract::Dietary proteins and amino acids are important modulators of glucose metabolism and insulin sensitivity. Although high intake of dietary proteins has positive effects on energy homeostasis by inducing satiety and possibly increasing energy expenditure, it has detrimental effects on glucose homeostasis by promoting ins...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nutr.25.050304.092545
更新日期:2007-01-01 00:00:00
abstract::Taste is a chemical sense that aids in the detection of nutrients and guides food choice. A limited number of primary qualities comprise taste. Accumulating evidence has raised a question about whether fat should be among them. Most evidence indicates triacylglycerol is not an effective taste stimulus, though it clear...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev-nutr-080508-141108
更新日期:2009-01-01 00:00:00
abstract::Nutrient content and nutrient timing are considered key regulators of human health and a variety of diseases and involve complex interactions with the mucosal immune system. In particular, the innate immune system is emerging as an important signaling hub that modulates the response to nutritional signals, in part via...
journal_title:Annual review of nutrition
pub_type: 杂志文章
doi:10.1146/annurev-nutr-120919-094440
更新日期:2020-09-23 00:00:00
abstract::Emerging evidence suggests that ascorbate, the dominant form of vitamin C under physiological pH conditions, influences activity of the genome via regulating epigenomic processes. Ascorbate serves as a cofactor for Ten-eleven translocation (TET) dioxygenases that catalyze the oxidation of 5-methylcytosine (5mC) into 5...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev-nutr-071714-034228
更新日期:2015-01-01 00:00:00
abstract::The health benefits of pre- and probiotics have been the subject of increased research interests. These food supplements have been demonstrated to alter the pre-existing intestinal flora so as to provide an advantage to the host. This review focuses on the scientific evidence both for and against their role in promoti...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nutr.22.110901.145412
更新日期:2002-01-01 00:00:00
abstract::There is a great deal of interest in personalized, individualized, or precision interventions for disease and health-risk mitigation. This is as true of nutrition-based intervention and prevention strategies as it is for pharmacotherapies and pharmaceutical-oriented prevention strategies. Essentially, technological br...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev-nutr-071816-064717
更新日期:2017-08-21 00:00:00
abstract::The effects of saturated fatty acids (SFAs) on cardiovascular disease (CVD) risk are modulated by the nutrients that replace them and their food matrices. Replacement of SFAs with polyunsaturated fatty acids has been associated with reduced CVD risk, although there is heterogeneity in both fatty acid categories. In co...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev-nutr-071714-034449
更新日期:2015-01-01 00:00:00
abstract::This review examines the involvement of the gastrointestinal tract in the utilization of nitrogen, the identities of the nitrogenous substances entering and leaving the gut, and the significance of this recycling in the overall nitrogen economy of the body. It is concerned with nonruminant mammals, including man. ...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nutr.18.1.385
更新日期:1998-01-01 00:00:00
abstract::The ability to taste bitter thiourea compounds, such as phenylthiocarbamide (PTC) and 6-n-propylthiouracil (PROP), is inherited. Polymorphisms in the bitter-taste receptor TAS2R38 explain the majority of phenotypic variation in the PROP phenotype. It has been hypothesized that the PROP phenotype is a marker for percep...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev-nutr-071715-050916
更新日期:2016-07-17 00:00:00
abstract::Iron deficiency in early life is associated with delayed development as assessed by a number of clinical trials using similar global scales of development; this poor development during infancy persists in most cases after iron therapy has corrected iron status. If iron deficiency occurs in preschool and older children...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nutr.23.020102.075739
更新日期:2003-01-01 00:00:00
abstract::Since the late 1980s, there has been an explosion of information on the molecular mechanisms and functions of vitamin A. This review focuses on the essential role of vitamin A in female reproduction and embryonic development and the metabolism of vitamin A (retinol) that results in these functions. Evidence strongly s...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nutr.22.010402.102745E
更新日期:2002-01-01 00:00:00
abstract::Glucose is an essential nutrient for the human body. It is the major energy source for many cells, which depend on the bloodstream for a steady supply. Blood glucose levels, therefore, are carefully maintained. The liver plays a central role in this process by balancing the uptake and storage of glucose via glycogenes...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nutr.19.1.379
更新日期:1999-01-01 00:00:00
abstract::Research describing fatty acids as modulators of inflammation and immune responses abounds. Many of these studies have focused on one particular group of fatty acids, omega-3. The data from animal studies have shown that these fatty acids can have powerful anti-inflammatory and immunomodulatory activities in a wide ar...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nutr.25.050304.092610
更新日期:2006-01-01 00:00:00
abstract::The low-density lipoprotein (LDL) receptor (LDL-R) family consists of cell-surface receptors that recognize extracellular ligands and internalize them for degradation by lysosomes. The LDL-R is the prototype of this family, which also contains very-low-density lipoprotein receptors (VLDL-R), apolipoprotein E receptor ...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nutr.19.1.141
更新日期:1999-01-01 00:00:00
abstract::Variants in the FADS gene cluster modify the activity of polyunsaturated fatty acid (PUFA) desaturation and the lipid composition in human blood and tissue. FADS variants have been associated with plasma lipid concentrations, risk of cardiovascular diseases, overweight, eczema, pregnancy outcomes, and cognitive functi...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev-nutr-082018-124250
更新日期:2019-08-21 00:00:00
abstract::The biosynthesis of one riboflavin molecule requires one molecule of GTP and two molecules of ribulose 5-phosphate as substrates. The imidazole ring of GTP is hydrolytically opened, yielding a 4, 5-diaminopyrimidine which is converted to 5-amino-6-ribitylamino-2, 4(1H,3H)-pyrimidinedione by a sequence of deamination, ...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nutr.20.1.153
更新日期:2000-01-01 00:00:00
abstract::Neural tube defects (NTDs) are the most severe congenital malformations of the central nervous system. The etiology is complex, with both genetic and environmental factors having important contributions. Researchers have known for the past two decades that maternal periconceptional use of the B vitamin folic acid can ...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev-nutr-071714-034235
更新日期:2017-08-21 00:00:00
abstract::Long-chain fatty acids are involved in all aspects of cellular structure and function. For controlling amounts of fatty acids, cells are endowed with two acetyl-coenzyme A carboxylase (ACC) systems. ACC-alpha is the rate-limiting enzyme in the biogenesis of long-chain fatty acids, and ACC-beta is believed to control m...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nutr.17.1.77
更新日期:1997-01-01 00:00:00
abstract::Investigations into regulating metabolic pathways with stable isotopes have, over the past decade, undergone major development with the use of nuclear magnetic resonance and mass spectrometry in studying labeling patterns of newly synthesized biomolecules. In this review, we concentrate on investigations of mass isoto...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nutr.17.1.559
更新日期:1997-01-01 00:00:00
abstract::The field of nutrigenomics shows tremendous promise for improved understanding of the effects of dietary intake on health. The knowledge that metabolic pathways may be altered in individuals with genetic variants in the presence of certain dietary exposures offers great potential for personalized nutrition advice. How...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev-nutr-072610-145203
更新日期:2013-01-01 00:00:00
abstract::Selenium exerts its biological activity largely through selenoproteins, which contain the element in the form of selenocysteine. Five selenoproteins have been characterized in animal tissues and there is evidence that a number of others exist. Selenoprotein synthesis is a complex process that has been well characteriz...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nu.13.070193.000433
更新日期:1993-01-01 00:00:00
abstract::There is a growing view that certain foods, particularly those high in refined sugars and fats, are addictive and that some forms of obesity can usefully be treated as a food addiction. This perspective is supported by a growing body of neuroscience research demonstrating that the chronic consumption of energy-dense f...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev-nutr-071715-050909
更新日期:2016-07-17 00:00:00
abstract::Hepcidin, a peptide hormone made in the liver, is the principal regulator of systemic iron homeostasis. Hepcidin controls plasma iron concentration and tissue distribution of iron by inhibiting intestinal iron absorption, iron recycling by macrophages, and iron mobilization from hepatic stores. Hepcidin acts by inhibi...
journal_title:Annual review of nutrition
pub_type: 杂志文章,评审
doi:10.1146/annurev.nutr.26.061505.111303
更新日期:2006-01-01 00:00:00