Abstract:
PURPOSE OF REVIEW:Here, we discuss recent work focused on the role of activating transcription factor 4 (ATF4) in skeletal muscle atrophy. RECENT FINDINGS:Muscle atrophy involves and requires widespread changes in skeletal muscle gene expression; however, the transcriptional regulatory proteins responsible for those changes are not yet well defined. Recent work indicates that some forms of muscle atrophy require ATF4, a stress-inducible bZIP transcription factor subunit that helps to mediate a broad range of stress responses in mammalian cells. ATF4 expression in skeletal muscle fibers is sufficient to induce muscle fiber atrophy and required for muscle atrophy during several stress conditions, including aging, fasting, and limb immobilization. By helping to activate specific genes in muscle fibers, ATF4 contributes to the expression of numerous mRNAs, including at least two mRNAs (Gadd45a and p21) that encode mediators of muscle fiber atrophy. Gadd45a promotes muscle fiber atrophy by activating the protein kinase MEKK4. p21 promotes atrophy by reducing expression of spermine oxidase, a metabolic enzyme that helps to maintain muscle fiber size under nonstressed conditions. SUMMARY:In skeletal muscle fibers, ATF4 is critical component of a complex and incompletely understood molecular signaling network that causes muscle atrophy during aging, fasting, and immobilization.
journal_name
Curr Opin Clin Nutr Metab Carejournal_title
Current opinion in clinical nutrition and metabolic careauthors
Adams CM,Ebert SM,Dyle MCdoi
10.1097/MCO.0000000000000362subject
Has Abstractpub_date
2017-05-01 00:00:00pages
164-168issue
3eissn
1363-1950issn
1473-6519pii
00075197-201705000-00004journal_volume
20pub_type
杂志文章,评审abstract:PURPOSE OF REVIEW:During recent years techniques and metabolic considerations have been discussed intensively. One contributing reason is that results have not always been easy to interpret and introduce into clinical practice. Nutrition through the enteral and parenteral route has classically been compared, and this i...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/00075197-200403000-00013
更新日期:2004-03-01 00:00:00
abstract:PURPOSE OF REVIEW:Lipidomic profiling of biological samples is increasing in nutritional research applications. 'Lipidomic analyses' however can be quite variable in specific methods and the type of information about the specific lipids that is revealed. The lack of defined and simple terminology to describe aspects of...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0000000000000495
更新日期:2018-09-01 00:00:00
abstract:PURPOSE OF REVIEW:Large-scale clinical trials have failed to demonstrate a benefit for vitamin E supplementation in cardiovascular prevention. This contrasts with previous epidemiological studies indicating that individuals with high vitamin E status benefit from protection against chronic illnesses, including cardiova...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/00075197-200503000-00005
更新日期:2005-03-01 00:00:00
abstract:PURPOSE OF REVIEW:The purpose of this review is to provide a concise overview of the polyphenol curcumin for improving arterial health, specifically endothelial function and arterial stiffness, to reduce cardiovascular disease (CVD) risk and to highlight potential mechanisms of action by which curcumin may improve arte...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0000000000000598
更新日期:2019-11-01 00:00:00
abstract:PURPOSE OF REVIEW:Epigenetics has emerged in recent years as one of the most important biological mechanisms linking exposures across the life course to long-term health. This article reviews recent developments in our understanding of the metabolic and genetic determinants of epigenetic variation in human populations....
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0000000000000194
更新日期:2015-07-01 00:00:00
abstract:PURPOSE OF REVIEW:Randomized controlled trials can be difficult to conduct in critically ill patients and may not always be the most appropriate type of study. Cohort studies can provide valuable information in large complete populations of patients without strict exclusion criteria and without the need for informed co...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0b013e32835d803e
更新日期:2013-03-01 00:00:00
abstract:PURPOSE OF REVIEW:To characterize methods evaluating and to summarize studies linking various serum 25-hydroxyvitamin D [25(OH)D] concentrations with health status. RECENT FINDINGS:Elucidation of the cell-biologic mechanism of vitamin D action, and numerous clinical trials and observational studies relating vitamin D ...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0b013e328348ed85
更新日期:2011-09-01 00:00:00
abstract:PURPOSE OF REVIEW:L-Arginine is the precursor for nitric oxide synthesis. In the brain, nitric oxide acts as a neurotransmitter; in the immune system, nitric oxide acts as a mediator of host defense; in the cardiovascular system, nitric oxide mediates the protective effects of the intact endothelium, acting as an endog...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0b013e3282f2b0c3
更新日期:2008-01-01 00:00:00
abstract:PURPOSE OF REVIEW:Autophagy is an evolutionarily conserved cellular programme for the turnover of organelles, proteins, and other macromolecules, involving the lysosomal degradation pathway. Emerging evidence suggests that autophagy can play a central role in human metabolism as well as impact diverse cellular processe...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0000000000000068
更新日期:2014-07-01 00:00:00
abstract:PURPOSE OF REVIEW:Muscle protein synthesis (MPS) and muscle protein breakdown are simultaneous ongoing processes. Here, we examine evidence for how protein quality can affect exercise-induced muscle protein anabolism or protein balance (MPS minus muscle protein breakdown). Evidence is highlighted showing differences in...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0b013e32831cef75
更新日期:2009-01-01 00:00:00
abstract:PURPOSE OF REVIEW:To describe the recent advances in our understanding of fatty acids and lipids in paediatric nonalcoholic fatty liver disease (NAFLD) and their future implications. RECENT FINDINGS:Data have been accumulated to suggest that ceramides are the main drivers of hepatic insulin resistance in NAFLD, and in...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0000000000000346
更新日期:2017-03-01 00:00:00
abstract:PURPOSE OF REVIEW:Nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steato hepatitis have an increasing prevalence among liver diseases. Overweight and obesity are frequently associated conditions in patients with fatty liver. Skeletal muscle mass depletion may also coexist with chronic liver disease even in ob...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0000000000000558
更新日期:2019-05-01 00:00:00
abstract:PURPOSE OF REVIEW:Food allergy affects up to 10% of preschool children, and continues to increase in prevalence in many countries, resulting in a major public health issue, with practical implications for the food industry, educational establishments and healthcare systems. RECENT FINDINGS:The need to distinguish betw...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0000000000000052
更新日期:2014-05-01 00:00:00
abstract:PURPOSE OF REVIEW:The diagnosis of aspiration and its origin in patients on enteral tube feeding is challenging to the physician and provides an important means to prevent pneumonia. This review examines the most recent studies and developments in the field with an approach to the technical aspects of diagnostic method...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/00075197-200405000-00008
更新日期:2004-05-01 00:00:00
abstract:PURPOSE OF REVIEW:Obesity continues to increase around the globe, and creates a major health problem because of its comorbidities such as diabetes and cardiovascular disease. Considering that the major cause of most human obesities is the modern lifestyle in a rapidly changing environment, this suggests that the battle...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/00075197-200311000-00002
更新日期:2003-11-01 00:00:00
abstract::Plant sterols have recently been recommended by the National Cholesterol Education Panel for use with the more traditional approaches of limiting saturated fat and cholesterol intakes, maintaining a healthy body weight and engaging in regular exercise, as a non-pharmacological approach to reduce low-density lipoprotei...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/00075197-200203000-00005
更新日期:2002-03-01 00:00:00
abstract::Laboratory methods for the measurement of micronutrients are usually based upon determinations in the peripheral blood. Most are relatively insensitive, but can screen for impending acute deficiency or toxicity. The metabolic responses to disease, injury and infection may alter the laboratory findings independently of...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/00075197-199811000-00003
更新日期:1998-11-01 00:00:00
abstract::The majority of the resting energy expenditure can be explained by the energy needs of a few highly metabolic organs, making up a small percentage of the body by weight. The relationship of the specific size, individual metabolism, and proportional contribution to the actual body weight and total energy expenditure fo...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/00075197-200103000-00011
更新日期:2001-03-01 00:00:00
abstract:PURPOSE OF REVIEW:Sarcopenia is a progressive generalized decline in skeletal muscle mass, strength, and function. This condition is highly prevalent in critically ill patients and is associated with poor outcomes in the ICU. In this review, we describe the use, evidence, and limitations of the most common validated im...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章
doi:10.1097/MCO.0000000000000673
更新日期:2020-09-01 00:00:00
abstract:PURPOSE OF REVIEW:The aim of this article is to emphasize the importance of malnutrition in frail institutionalized elderly and discuss recent interventions that have been shown to decrease its prevalence. RECENT FINDINGS:A Medline search was conducted from 1968 to 2007 under the search terms aging, nutrition, and nur...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0b013e3282f323e0
更新日期:2008-01-01 00:00:00
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journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0b013e32834d19bc
更新日期:2012-01-01 00:00:00
abstract:PURPOSE OF REVIEW:To summarize recent advances pertaining to the mechanisms regulating brain docosahexaenoic acid (DHA) uptake. DHA is an omega-3 polyunsaturated fatty acid highly enriched in neuronal membranes and it is implicated in several important neurological processes. However, DHA synthesis is extremely limited...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0000000000000440
更新日期:2018-03-01 00:00:00
abstract:PURPOSE OF REVIEW:Malnutrition and polypharmacy increase with age and polymorbidity and their relationship is based on a number of mechanisms. The occurrence of malnutrition in both in-patients and out-patients and its dependence on polymorbidity and age are well known, but the interrelation of polypharmacy and malnutr...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0b013e32835b612e
更新日期:2013-01-01 00:00:00
abstract:PURPOSE OF REVIEW:High-fat diets lead to obesity and increase the risk of developing insulin resistance and type 2 diabetes. Adipose tissue and skeletal muscle act as endocrine organs, and produce various cytokines that can potentially alter peripheral insulin sensitivity. The purpose of the present review is to briefl...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0b013e328338236e
更新日期:2010-05-01 00:00:00
abstract:PURPOSE OF REVIEW:To review the domains in which computerized information systems have proven beneficial in facilitating the metabolic and nutritional management RECENT FINDINGS:In glucose control, computerized insulin algorithms have proven safer and more efficient than manual systems, reducing workload, time to targ...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0b013e328341ed77
更新日期:2011-03-01 00:00:00
abstract:PURPOSE OF REVIEW:To review the recent work on potential mechanisms underlying a paradoxical positive association between the consumption of non-nutritive sweeteners (NNS) and weight gain. RECENT FINDINGS:Several potential mechanisms, not mutually exclusive, are hypothesized. First, by dissociating sweetness from calo...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0b013e3283468e7e
更新日期:2011-07-01 00:00:00
abstract:PURPOSE OF REVIEW:To highlight recent research that has contributed to an improved understanding of, or resulted in, important changes in the approach to feeding HIV-exposed infants. RECENT FINDINGS:The administration of antiretroviral therapy to a HIV-positive pregnant woman and its continued use during breast-feedin...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0b013e328337321a
更新日期:2010-05-01 00:00:00
abstract::Advances in separation science are leading to more sensitive and more specific analysis of the complex mixtures of metabolites, vitamins and nutrients found in biofluids. Recent developments include capillary electrokinetic separations such as capillary electrophoresis, and the linking of separation methods to new for...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/00075197-199809000-00012
更新日期:1998-09-01 00:00:00
abstract:PURPOSE OF REVIEW:The present review aims to address the role of adipose tissue oxygen partial pressure (PO2) in the metabolic and endocrine derangements in conditions characterized by insulin resistance. RECENT FINDINGS:The balance between adipose tissue oxygen supply and its metabolic rate seems to determine adipose...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0b013e328358fa87
更新日期:2012-11-01 00:00:00
abstract:PURPOSE OF REVIEW:Recent literature suggests dietary glutamine supplementation may lower blood glucose in patients with type 1 diabetes (T1D), who have no residual insulin secretion. The mechanisms and potential relevance to the care of T1D remain unclear. RECENT FINDINGS:Glutamine is involved in multiple pathways inc...
journal_title:Current opinion in clinical nutrition and metabolic care
pub_type: 杂志文章,评审
doi:10.1097/MCO.0000000000000530
更新日期:2019-01-01 00:00:00