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  1. Article ; Online: Effects of head-only or whole-body exposure to very low doses of

    Rabin, Bernard M / Poulose, Shibu M / Bielinski, Donna F / Shukitt-Hale, Barbara

    Life sciences in space research

    2019  Volume 20, Page(s) 85–92

    Abstract: On exploratory class missions, astronauts will be exposed to a range of heavy particles which vary in linear energy transfer (LET). Previous research has shown a direct relationship between particle LET and cognitive performance such that, as particle ... ...

    Abstract On exploratory class missions, astronauts will be exposed to a range of heavy particles which vary in linear energy transfer (LET). Previous research has shown a direct relationship between particle LET and cognitive performance such that, as particle LET decreases the dose needed to affect cognitive performance also decreases. Because a significant portion of the total dose experienced by astronauts may be expected to come from exposure to low LET
    MeSH term(s) Animals ; Behavior, Animal/radiation effects ; Cognition/physiology ; Cognition/radiation effects ; Head/radiation effects ; Helium/administration & dosage ; Male ; Neurons/physiology ; Neurons/radiation effects ; Rats ; Rats, Sprague-Dawley ; Whole-Body Irradiation/methods
    Chemical Substances Helium (206GF3GB41)
    Language English
    Publishing date 2019-02-05
    Publishing country Netherlands
    Document type Journal Article
    ISSN 2214-5532
    ISSN (online) 2214-5532
    DOI 10.1016/j.lssr.2019.02.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Role of fruits, nuts, and vegetables in maintaining cognitive health.

    Miller, Marshall G / Thangthaeng, Nopporn / Poulose, Shibu M / Shukitt-Hale, Barbara

    Experimental gerontology

    2017  Volume 94, Page(s) 24–28

    Abstract: Population aging is leading to an increase in the incidence of age-related cognitive dysfunction and, with it, the health care burden of caring for older adults. Epidemiological studies have shown that consumption of fruits, nuts, and vegetables is ... ...

    Abstract Population aging is leading to an increase in the incidence of age-related cognitive dysfunction and, with it, the health care burden of caring for older adults. Epidemiological studies have shown that consumption of fruits, nuts, and vegetables is positively associated with cognitive ability; however, these foods, which contain a variety of neuroprotective phytochemicals, are widely under-consumed. Surprisingly few studies have investigated the effects of individual plant foods on cognitive health but recent clinical trials have shown that dietary supplementation with individual foods, or switching to a diet rich in several of these foods, can improve cognitive ability. While additional research is needed, increasing fruit, nut, and vegetable intake may be an effective strategy to prevent or delay the onset of cognitive dysfunction during aging.
    Language English
    Publishing date 2017-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 390992-x
    ISSN 1873-6815 ; 0531-5565
    ISSN (online) 1873-6815
    ISSN 0531-5565
    DOI 10.1016/j.exger.2016.12.014
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Walnut extract modulates activation of microglia through alteration in intracellular calcium concentration.

    Thangthaeng, Nopporn / Poulose, Shibu M / Fisher, Derek R / Shukitt-Hale, Barbara

    Nutrition research (New York, N.Y.)

    2017  Volume 49, Page(s) 88–95

    Abstract: Diets supplemented with walnuts have shown to protect brain against oxidative and inflammatory cytotoxicity and promote protective cellular and cognitive function. The current study was undertaken to test the hypothesize that whole walnut extract (WNE) ... ...

    Abstract Diets supplemented with walnuts have shown to protect brain against oxidative and inflammatory cytotoxicity and promote protective cellular and cognitive function. The current study was undertaken to test the hypothesize that whole walnut extract (WNE) inhibits lipopolysaccharide (LPS)-induced microglial activation by regulating calmodulin (CaM) expression through [Ca
    MeSH term(s) Animals ; Brain/cytology ; Brain/drug effects ; Brain/metabolism ; Calcium/metabolism ; Calcium-Binding Proteins/metabolism ; Calmodulin/metabolism ; Cell Line ; Enzyme Inhibitors/pharmacology ; Juglans ; Lipopolysaccharides ; Microfilament Proteins/metabolism ; Microglia/drug effects ; Microglia/metabolism ; Nitric Oxide Synthase Type II/metabolism ; Nuts ; Plant Extracts/pharmacology ; Potassium Chloride/pharmacology ; Rats ; Thapsigargin/pharmacology ; Up-Regulation
    Chemical Substances Aif1 protein, rat ; Calcium-Binding Proteins ; Calmodulin ; Enzyme Inhibitors ; Lipopolysaccharides ; Microfilament Proteins ; Plant Extracts ; Potassium Chloride (660YQ98I10) ; Thapsigargin (67526-95-8) ; Nitric Oxide Synthase Type II (EC 1.14.13.39) ; Calcium (SY7Q814VUP)
    Language English
    Publishing date 2017-11-04
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 582432-1
    ISSN 1879-0739 ; 0271-5317
    ISSN (online) 1879-0739
    ISSN 0271-5317
    DOI 10.1016/j.nutres.2017.10.016
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Nutritional Factors Affecting Adult Neurogenesis and Cognitive Function.

    Poulose, Shibu M / Miller, Marshall G / Scott, Tammy / Shukitt-Hale, Barbara

    Advances in nutrition (Bethesda, Md.)

    2017  Volume 8, Issue 6, Page(s) 804–811

    Abstract: Adult neurogenesis, a complex process by which stem cells in the hippocampal brain region differentiate and proliferate into new neurons and other resident brain cells, is known to be affected by many intrinsic and extrinsic factors, including diet. ... ...

    Abstract Adult neurogenesis, a complex process by which stem cells in the hippocampal brain region differentiate and proliferate into new neurons and other resident brain cells, is known to be affected by many intrinsic and extrinsic factors, including diet. Neurogenesis plays a critical role in neural plasticity, brain homeostasis, and maintenance in the central nervous system and is a crucial factor in preserving the cognitive function and repair of damaged brain cells affected by aging and brain disorders. Intrinsic factors such as aging, neuroinflammation, oxidative stress, and brain injury, as well as lifestyle factors such as high-fat and high-sugar diets and alcohol and opioid addiction, negatively affect adult neurogenesis. Conversely, many dietary components such as curcumin, resveratrol, blueberry polyphenols, sulforaphane, salvionic acid, polyunsaturated fatty acids (PUFAs), and diets enriched with polyphenols and PUFAs, as well as caloric restriction, physical exercise, and learning, have been shown to induce neurogenesis in adult brains. Although many of the underlying mechanisms by which nutrients and dietary factors affect adult neurogenesis have yet to be determined, nutritional approaches provide promising prospects to stimulate adult neurogenesis and combat neurodegenerative diseases and cognitive decline. In this review, we summarize the evidence supporting the role of nutritional factors in modifying adult neurogenesis and their potential to preserve cognitive function during aging.
    MeSH term(s) Adult ; Aged ; Aging/physiology ; Brain/physiology ; Cognition/physiology ; Cognitive Dysfunction/physiopathology ; Female ; Hippocampus/physiology ; Humans ; Male ; Middle Aged ; Neurodegenerative Diseases/physiopathology ; Neurogenesis/physiology ; Nutritional Physiological Phenomena/physiology
    Language English
    Publishing date 2017-11-15
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2583634-1
    ISSN 2156-5376 ; 2156-5376
    ISSN (online) 2156-5376
    ISSN 2156-5376
    DOI 10.3945/an.117.016261
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Walnut extract modulates activation of microglia through alteration in intracellular calcium concentration

    Thangthaeng, Nopporn / Fisher, Derek R / Poulose, Shibu M / Shukitt-Hale, Barbara

    Nutrition research. 2018 Jan., v. 49

    2018  

    Abstract: Diets supplemented with walnuts have shown to protect brain against oxidative and inflammatory cytotoxicity and promote protective cellular and cognitive function. The current study was undertaken to test the hypothesize that whole walnut extract (WNE) ... ...

    Abstract Diets supplemented with walnuts have shown to protect brain against oxidative and inflammatory cytotoxicity and promote protective cellular and cognitive function. The current study was undertaken to test the hypothesize that whole walnut extract (WNE) inhibits lipopolysaccharide (LPS)-induced microglial activation by regulating calmodulin (CaM) expression through [Ca2+]i. To test this hypothesis, we used an in vitro model the highly aggressively proliferating immortalized cells, a rat microglial cell line, treated with various concentrations of WNEs. Treatment with WNE (1.5%, 3%, or 6%) induced a slow rise in intracellular calcium in a concentration- and time-dependent manner, and this rise became exaggerated when cells were depolarized with potassium chloride (100 mmol/L). Cells treated with WNE (1%, 3%, or 6%) upregulated CaM protein levels, with 1 hour posttreatment being the peak time, regardless of WNE concentration. Interestingly, this WNE-induced upregulation of CaM was blocked by pretreatment with thapsigargin. Additionally, treatment with WNE (1%, 3%, or 6%) 1 hour prior to LPS treatment was found to be effective in preventing LPS-induced upregulation of inducible nitric oxide synthase expression, upregulation of ionized Ca2+-binding adaptor-1, and downregulation of CaM. These findings suggest that bioactive compounds in walnut are capable of modulating microglial activation through regulation of intracellular calcium and CaM expression. Nutritional interventions using walnuts may be effective in the amelioration of chronic inflammation and neurodegeneration.
    Keywords bioactive compounds ; brain ; calcium ; calmodulin ; cell lines ; cognition ; cytotoxicity ; dietary supplements ; inducible nitric oxide synthase ; inflammation ; ionization ; lipopolysaccharides ; models ; neurodegenerative diseases ; neuroglia ; nutritional intervention ; potassium chloride ; protein content ; rats ; walnuts
    Language English
    Dates of publication 2018-01
    Size p. 88-95.
    Publishing place Elsevier Inc.
    Document type Article
    ZDB-ID 582432-1
    ISSN 1879-0739 ; 0271-5317
    ISSN (online) 1879-0739
    ISSN 0271-5317
    DOI 10.1016/j.nutres.2017.10.016
    Database NAL-Catalogue (AGRICOLA)

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  6. Article ; Online: Preserving Brain Function in Aging: The Anti-glycative Potential of Berry Fruit.

    Thangthaeng, Nopporn / Poulose, Shibu M / Miller, Marshall G / Shukitt-Hale, Barbara

    Neuromolecular medicine

    2016  Volume 18, Issue 3, Page(s) 465–473

    Abstract: Advanced glycation end products (AGEs) are naturally occurring macromolecules that are formed in vivo by the non-enzymatic modification of proteins, lipids, or nucleic acids by sugar, even in the absence of hyperglycemia. In the diet, AGEs are found in ... ...

    Abstract Advanced glycation end products (AGEs) are naturally occurring macromolecules that are formed in vivo by the non-enzymatic modification of proteins, lipids, or nucleic acids by sugar, even in the absence of hyperglycemia. In the diet, AGEs are found in animal products, and additional AGEs are produced when those foods are cooked at high temperatures. Studies have linked AGEs to various age-related physiological changes, including wrinkles, diabetic complications, and neurodegenerative disease, including Alzheimer's disease. Dietary berry fruits have been shown to reduce the severity or slow the progression of many physiological changes and disease pathologies that accompany aging. Emerging evidence has shown that the phytochemicals found in berry fruits exhibit anti-glycative activity. In this review, we briefly summarize the current evidence supporting the neuroprotective anti-glycative activity of berry fruits and their potential to preserve cognitive function during aging.
    Language English
    Publishing date 2016-09
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2077809-0
    ISSN 1559-1174 ; 1535-1084
    ISSN (online) 1559-1174
    ISSN 1535-1084
    DOI 10.1007/s12017-016-8400-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Role of walnuts in maintaining brain health with age.

    Poulose, Shibu M / Miller, Marshall G / Shukitt-Hale, Barbara

    The Journal of nutrition

    2014  Volume 144, Issue 4 Suppl, Page(s) 561S–566S

    Abstract: Because of the combination of population growth and population aging, increases in the incidence of chronic neurodegenerative disorders have become a societal concern, both in terms of decreased quality of life and increased financial burden. Clinical ... ...

    Abstract Because of the combination of population growth and population aging, increases in the incidence of chronic neurodegenerative disorders have become a societal concern, both in terms of decreased quality of life and increased financial burden. Clinical manifestation of many of these disorders takes years, with the initiation of mild cognitive symptoms leading to behavioral problems, dementia and loss of motor functions, the need for assisted living, and eventual death. Lifestyle factors greatly affect the progression of cognitive decline, with high-risk behaviors including unhealthy diet, lack of exercise, smoking, and exposure to environmental toxins leading to enhanced oxidative stress and inflammation. Although there exists an urgent need to develop effective treatments for age-related cognitive decline and neurodegenerative disease, prevention strategies have been underdeveloped. Primary prevention in many of these neurodegenerative diseases could be achieved earlier in life by consuming a healthy diet, rich in antioxidant and anti-inflammatory phytochemicals, which offers one of the most effective and least expensive ways to address the crisis. English walnuts (Juglans regia L.) are rich in numerous phytochemicals, including high amounts of polyunsaturated fatty acids, and offer potential benefits to brain health. Polyphenolic compounds found in walnuts not only reduce the oxidant and inflammatory load on brain cells but also improve interneuronal signaling, increase neurogenesis, and enhance sequestration of insoluble toxic protein aggregates. Evidence for the beneficial effects of consuming a walnut-rich diet is reviewed in this article.
    MeSH term(s) Aged ; Aging ; Brain/physiology ; Brain Diseases/diet therapy ; Brain Diseases/metabolism ; Brain Diseases/prevention & control ; Humans ; Juglans ; Neurodegenerative Diseases/diet therapy ; Neurodegenerative Diseases/metabolism ; Neurodegenerative Diseases/prevention & control
    Language English
    Publishing date 2014-02-05
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S. ; Review
    ZDB-ID 218373-0
    ISSN 1541-6100 ; 0022-3166
    ISSN (online) 1541-6100
    ISSN 0022-3166
    DOI 10.3945/jn.113.184838
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Nutritional Factors Affecting Adult Neurogenesis and Cognitive Function

    Poulose, Shibu M / Miller, Marshall G / Scott, Tammy / Shukitt-Hale, Barbara

    Advances in nutrition. 2017 Nov. 07, v. 8, no. 6

    2017  

    Abstract: Adult neurogenesis, a complex process by which stem cells in the hippocampal brain region differentiate and proliferate into new neurons and other resident brain cells, is known to be affected by many intrinsic and extrinsic factors, including diet. ... ...

    Abstract Adult neurogenesis, a complex process by which stem cells in the hippocampal brain region differentiate and proliferate into new neurons and other resident brain cells, is known to be affected by many intrinsic and extrinsic factors, including diet. Neurogenesis plays a critical role in neural plasticity, brain homeostasis, and maintenance in the central nervous system and is a crucial factor in preserving the cognitive function and repair of damaged brain cells affected by aging and brain disorders. Intrinsic factors such as aging, neuroinflammation, oxidative stress, and brain injury, as well as lifestyle factors such as high-fat and high-sugar diets and alcohol and opioid addiction, negatively affect adult neurogenesis. Conversely, many dietary components such as curcumin, resveratrol, blueberry polyphenols, sulforaphane, salvionic acid, polyunsaturated fatty acids (PUFAs), and diets enriched with polyphenols and PUFAs, as well as caloric restriction, physical exercise, and learning, have been shown to induce neurogenesis in adult brains. Although many of the underlying mechanisms by which nutrients and dietary factors affect adult neurogenesis have yet to be determined, nutritional approaches provide promising prospects to stimulate adult neurogenesis and combat neurodegenerative diseases and cognitive decline. In this review, we summarize the evidence supporting the role of nutritional factors in modifying adult neurogenesis and their potential to preserve cognitive function during aging.
    Keywords adults ; blueberries ; brain ; brain damage ; cognition ; cognitive disorders ; curcumin ; exercise ; high carbohydrate diet ; homeostasis ; intrinsic factors ; learning ; lifestyle ; low calorie diet ; neurodegenerative diseases ; neurogenesis ; neurons ; nutrients ; oxidative stress ; plasticity ; polyphenols ; polyunsaturated fatty acids ; resveratrol ; stem cells ; sulforaphane
    Language English
    Dates of publication 2017-1107
    Size p. 804-811.
    Publishing place Oxford University Press
    Document type Article
    ZDB-ID 2583634-1
    ISSN 2156-5376 ; 2161-8313
    ISSN (online) 2156-5376
    ISSN 2161-8313
    DOI 10.3945/an.117.016261
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Blueberries Improve Neuroinflammation and Cognition differentially Depending on Individual Cognitive baseline Status.

    Shukitt-Hale, Barbara / Thangthaeng, Nopporn / Miller, Marshall G / Poulose, Shibu M / Carey, Amanda N / Fisher, Derek R

    The journals of gerontology. Series A, Biological sciences and medical sciences

    2019  Volume 74, Issue 7, Page(s) 977–983

    Abstract: Daily supplementation of blueberries (BBs) reverses age-related deficits in behavior in aged rats. However, it is unknown whether BB is more beneficial to one subset of the population dependent on baseline cognitive performance and inflammatory status. ... ...

    Abstract Daily supplementation of blueberries (BBs) reverses age-related deficits in behavior in aged rats. However, it is unknown whether BB is more beneficial to one subset of the population dependent on baseline cognitive performance and inflammatory status. To examine the effect of individual differences on the efficacy of BB, aged rats (17 months old) were assessed for cognition in the radial arm water maze (RAWM) and divided into good, average, and poor performers based on navigation errors. Half of the rats in each cognitive group were then fed a control or a 2% BB diet for 8 weeks before retesting. Serum samples were collected, pre-diet and post-diet, to assess inflammation. Latency in the radial arm water maze was significantly reduced in the BB-fed poor performers (p < .05) and preserved in the BB-fed good performers. The control-fed good performers committed more working and reference memory errors in the post-test than pretest (p < .05), whereas the BB-fed good performers showed no change. An in vitro study using the serum showed that BB supplementation attenuated lipopolysaccharide (LPS)-induced nitrite and tumor necrosis factor-alpha, and cognitive performance was associated with innate anti-inflammatory capability. Therefore, consumption of BB may reverse some age-related deficits in cognition, as well as preserve function among those with intact cognitive ability.
    MeSH term(s) Aging/immunology ; Aging/psychology ; Animals ; Anti-Inflammatory Agents/immunology ; Anti-Inflammatory Agents/pharmacology ; Antioxidants/metabolism ; Antioxidants/pharmacology ; Behavior, Animal ; Blueberry Plants ; Cognition/drug effects ; Cognition/physiology ; Diet Therapy/methods ; Maze Learning ; Neuroimmunomodulation/drug effects ; Neuroimmunomodulation/physiology ; Plants, Medicinal ; Rats ; Treatment Outcome ; Tumor Necrosis Factor-alpha/blood
    Chemical Substances Anti-Inflammatory Agents ; Antioxidants ; Tumor Necrosis Factor-alpha
    Language English
    Publishing date 2019-02-15
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 1223643-3
    ISSN 1758-535X ; 1079-5006
    ISSN (online) 1758-535X
    ISSN 1079-5006
    DOI 10.1093/gerona/glz048
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Walnut diet reduces accumulation of polyubiquitinated proteins and inflammation in the brain of aged rats.

    Poulose, Shibu M / Bielinski, Donna F / Shukitt-Hale, Barbara

    The Journal of nutritional biochemistry

    2013  Volume 24, Issue 5, Page(s) 912–919

    Abstract: An increase in the aggregation of misfolded/damaged polyubiquitinated proteins has been the hallmark of many age-related neurodegenerative diseases. The accumulation of these potentially toxic proteins in brain increases with age, in part due to ... ...

    Abstract An increase in the aggregation of misfolded/damaged polyubiquitinated proteins has been the hallmark of many age-related neurodegenerative diseases. The accumulation of these potentially toxic proteins in brain increases with age, in part due to increased oxidative and inflammatory stresses. Walnuts, rich in omega fatty acids, have been shown to improve memory, cognition and neuronal effects related to oxidative stress (OS) and inflammation (INF) in animals and human trials. The current study found that feeding 19-month-old rats with a 6% or 9% walnut diet significantly reduced the aggregation of polyubiquitinated proteins and activated autophagy, a neuronal housekeeping function, in the striatum and hippocampus. Walnut-fed animals exhibited up-regulation of autophagy through inhibiting phosphorylation of mTOR, up-regulating ATG7 and Beclin 1, and turnover of MAP1BLC3 proteins. The clearance of polyubiquitinated protein aggregates such as p62/SQSTM1 was more profound in hippocampus, a critical region in the brain involved in memory and cognitive performance, than striatum. The clearance of ubiquitinated aggregates was in tandem with significant reductions in OS/INF, as indicated by the levels of P38-MAP kinase and phosphorylations of nuclear factor kappa B and cyclic AMP response element binding protein. The results demonstrate the effectiveness of a walnut-supplemented diet in activating the autophagy function in brain beyond its traditionally known antioxidant and anti-inflammatory benefits.
    MeSH term(s) Animals ; Apoptosis Regulatory Proteins/genetics ; Apoptosis Regulatory Proteins/metabolism ; Autophagy/drug effects ; Autophagy-Related Protein 7 ; Beclin-1 ; Brain/drug effects ; Brain/metabolism ; Cognition/drug effects ; Cyclic AMP Response Element-Binding Protein/genetics ; Cyclic AMP Response Element-Binding Protein/metabolism ; Diet ; Fatty Acids, Unsaturated/administration & dosage ; Hippocampus/drug effects ; Hippocampus/metabolism ; Inflammation/prevention & control ; Juglans ; Male ; Memory/drug effects ; NF-kappa B/genetics ; NF-kappa B/metabolism ; Nuts ; Oxidative Stress/drug effects ; Phosphorylation/drug effects ; Rats ; Rats, Inbred F344 ; TOR Serine-Threonine Kinases/genetics ; TOR Serine-Threonine Kinases/metabolism ; Ubiquitin-Activating Enzymes/genetics ; Ubiquitin-Activating Enzymes/metabolism ; Ubiquitinated Proteins/genetics ; Ubiquitinated Proteins/metabolism ; Up-Regulation ; p38 Mitogen-Activated Protein Kinases/genetics ; p38 Mitogen-Activated Protein Kinases/metabolism
    Chemical Substances Apoptosis Regulatory Proteins ; Atg7 protein, rat ; Beclin-1 ; Becn1 protein, rat ; Cyclic AMP Response Element-Binding Protein ; Fatty Acids, Unsaturated ; NF-kappa B ; Ubiquitinated Proteins ; TOR Serine-Threonine Kinases (EC 2.7.1.1) ; mTOR protein, rat (EC 2.7.1.1) ; p38 Mitogen-Activated Protein Kinases (EC 2.7.11.24) ; Autophagy-Related Protein 7 (EC 6.2.1.45) ; Ubiquitin-Activating Enzymes (EC 6.2.1.45)
    Language English
    Publishing date 2013-05
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1014929-6
    ISSN 1873-4847 ; 0955-2863
    ISSN (online) 1873-4847
    ISSN 0955-2863
    DOI 10.1016/j.jnutbio.2012.06.009
    Database MEDical Literature Analysis and Retrieval System OnLINE

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