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You searched for: Publication Year 2005 Remove constraint Publication Year: 2005 Subject antioxidant activity Remove constraint Subject: antioxidant activity Subject term antioxidant activity Remove constraint Subject term: antioxidant activity Text Availability Full Text Remove constraint Text Availability: Full Text
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1. Antioxidant activity and characterization of volatile constituents of beechwood creosote

Author:
Lee, K.G.; Lee, S.E.; Takeoka, G.R.; Kim, J.H.; Park, B.S.
Source:
Journal of the science of food and agriculture 2005 v.85 no.9 pp. 1580-1586
ISSN:
0022-5142
Subject:
Fagus; wood; creosote; volatile organic compounds; antioxidants; antioxidant activity; food additives; herbal medicines; medicinal properties
Abstract:
... Volatile constituents of beechwood creosote were determined using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). The major volatile constituents of creosote were 2-methoxyphenol (guaiacol; 25.2%) 2-methoxy-4-methylphenol (4-methylguaiacol; 21.4%), 3-methylphenol (m-cresol; 8.3%) 4-methylphenol (p-cresol; 7.9%) 2-methylphenol (o-cresol; 4.6%) and phenol (2.8%). The antiox ...
Handle:
10113/19306
DOI:
10.1002/jsfa.2156

2. Antioxidant capacity of fresh-cut vegetables exposed to ionizing radiation

Author:
Fan, X.
Source:
Journal of the science of food and agriculture 2005 v.85 no.6 pp. 995-1000
ISSN:
0022-5142
Subject:
fresh-cut foods; head lettuce; romaine lettuce; endive; food irradiation; ionizing radiation; antioxidant activity; food composition; phenolic compounds; storage time; enzymatic browning
Abstract:
... The effect of ionizing radiation on antioxidant capacity, phenolic content and tissue browning of three vegetables was studied. Midrib and non-midrib leaf tissues of Romaine and Iceberg lettuce and endive were irradiated with gamma-rays at 0, 0.5, 1 and 2 kGy, and then stored at 7-8 degrees C for 8 days. Antioxidant capacity and phenolic content of tissues as well as tissue browning were analyzed ...
Handle:
10113/19303
DOI:
10.1002/jsfa.2057

3. Antioxidant metabolism in cotton seedlings exposed to temperature stress in the field

Author:
Mahan, J.R.; Mauget, S.A.
Source:
Crop science 2005 v.45 no.6 pp. 2337-2345
ISSN:
0011-183X
Subject:
cotton; planting date; seedling growth; plant development; glutathione-disulfide reductase; ascorbate peroxidase; Gossypium hirsutum; seedlings; air temperature; cold stress; fiber crops; heat stress; antioxidant activity; enzyme activity; Texas
Abstract:
... Early season temperature stress adversely affects the growth and development of cotton (Gossypium hirsutum L.) seedlings. Oxidative damage resulting from temperature extremes is thought to be a cause of diminished seedling performance. Cotton (cv Fibermax 958) was planted at Lubbock, TX, in 2003 and 2004 to investigate the effect of low and high temperatures on oxidative stress and antioxidant met ...
Handle:
10113/3219

4. Antioxidants and photoprotection in a lichen as compared with its isolated symbiotic partners

Author:
Kranner, I.; Cram, W.J.; Zorn, M.; Wornik, S.; Yoshimura, I.; Stabentheiner, E.; Pfeifhofer, H.W.
Source:
Proceedings of the National Academy of Sciences of the United States of America 2005 v.102 no.8 pp. 3141-3146
ISSN:
0027-8424
Subject:
lichens; Cladonia; Trebouxia; symbionts; glutathione; antioxidant activity; oxidative stress; stress tolerance; light intensity; desiccation (plant physiology)
Abstract:
... Extreme desiccation and irradiation increase the formation of reactive oxygen species in organisms. Lichens are highly resistant to potential damage, but it is not known whether biochemical interaction between their fungal and algal partners is involved in conferring stress tolerance. Here, we show that antioxidant and photoprotective mechanisms in the lichen Cladonia vulcani are more effective by ...
DOI:
10.1073/pnas.0407716102
PubMed:
15710882
PubMed Central:
PMC549463

5. Arabidopsis Nitric Oxide Synthase1 Is Targeted to Mitochondria and Protects against Oxidative Damage and Dark-Induced Senescence

Author:
Guo, Fang-Qing; Crawford, Nigel M.
Source:
plant cell 2005 v.17 no.12 pp. 3436-3450
ISSN:
1040-4651
Subject:
Arabidopsis thaliana; nitric oxide synthase; biosynthesis; nitric oxide; hydrogen peroxide; mitochondria; oxidation; cytochemistry; superoxide anion; enzyme activity; antioxidant activity; leaves
Abstract:
... The Arabidopsis thaliana protein nitric oxide synthase1 (NOS1) is needed for nitric oxide (NO) synthesis and signaling during defense responses, hormonal signaling, and flowering. The cellular localization of NOS1 was examined because it is predicted to be a mitochondrial protein. NOS1-green fluorescent protein fusions were localized by confocal microscopy to mitochondria in roots. Isolated mitoch ...
DOI:
10.1105/tpc.105.037770
PubMed:
16272429
PubMed Central:
PMC1315380

6. Carotenoids normally present in serum inhibit proliferation and induce differentiation of a human monocyte/macrophage cell line (U937)

Author:
McDevitt, T.M.; Tchao, R.; Harrison, E.H.; Morel, D.W.
Source:
Journal of nutrition 2005 v.135 no.2 pp. 160-164
ISSN:
0022-3166
Subject:
cell differentiation; humans; monocytes; cell culture; reactive oxygen species; macrophages; lycopene; low density lipoprotein; beta-carotene; lutein; cell lines; antioxidant activity; cell proliferation; cell adhesion; protective effect
Abstract:
... Carotenoids, plant pigments with potent antioxidant activity, are implicated in chronic disease protection. They are absorbed from the diet and transported by plasma lipoproteins. Monocytes, as circulating blood cells, are exposed to carotenoid-rich lipoproteins. Such exposure may lead to enrichment with carotenoids and may affect the functions of monocyte-derived macrophages. This study explored ...
Handle:
10113/1955
PubMed:
15671207

7. Dietary Supplements and Sports Performance: Minerals

Author:
Melvin H Williams
Source:
Journal of the International Society of Sports Nutrition 2005 v.2 no.1 pp. 43
ISSN:
1550-2783
Subject:
acid-base balance; antioxidant activity; athletes; athletic performance; blood; bone health; dietary supplements; enzyme activation; humans; immune response; minerals; muscle contraction; oxidative phosphorylation; oxygen; sports nutrition; trace elements
Abstract:
... Minerals are essential for a wide variety of metabolic and physiologic processes in the human body. Some of the physiologic roles of minerals important to athletes are their involvement in: muscle contraction, normal hearth rhythm, nerve impulse conduction, oxygen transport, oxidative phosphorylation, enzyme activation, immune functions, antioxidant activity, bone health, and acid-base balance of ...
DOI:
10.1186/1550-2783-2-1-43
PubMed:
18500950
PubMed Central:
PMC2129162

8. Dietary supplementation with fruit polyphenolics ameliorates age-related deficits in behavior and neuronal markers of inflammation and oxidative stress

Author:
Shukitt-Hale, B.; Galli, R.L.; Meterko, V.; Carey, A.; Bielinski, D.F.; McGhie, T.; Joseph, J.A.
Source:
Age the journal of the American Aging Association 2005 v.27 no.1 pp. 49-57
Subject:
memory; neurophysiology; polyphenols; black currants; cranberries; fruit composition; dietary supplements; oxidative stress; second messengers; biomarkers; dietary nutrient sources; cognition; hippocampus; neurons; nutritional intervention; physical activity; boysenberries; rats; antioxidant activity; antioxidants; neuroprotective effect; chemical composition; cyanin; vegetable extracts; physical fitness; inflammation; fruit extracts; animal models; chemical constituents of plants; vegetables; blueberries
Abstract:
... Dietary supplementation with fruit or vegetable extracts can ameliorate age-related declines in measures of learning, memory, motor performance, and neuronal signal transduction in a rat model. To date, blueberries have proved most effective at improving measures of motor performance, spatial learning and memory, and neuronal functioning in old rats. In an effort to further characterize the bioact ...
Handle:
10113/10955
DOI:
10.1007/s11357-005-4004-9
PubMed:
23598603
PubMed Central:
PMC3456098

9. Effect of diet on the disruption of operant responding at different ages following exposure to 56Fe particles

Author:
Rabin, B.M.; Carrihill-Knoll, K.L.; Carey, A.; Shukitt-Hale, B.
Source:
Age the journal of the American Aging Association 2005 v.27 no.1 pp. 69-73
Subject:
memory; dopamine; neurophysiology; operant conditioning; diet; strawberries; gamma radiation; free radicals; blueberries; fruit extracts; age; free radical scavengers; animal models; neurotransmitters; rats; antioxidant activity; radiotherapy; cognition
Abstract:
... Rats were exposed to 2.0 Gy of 56Fe particles to study the relationship between age and diet in the heavy particle-induced disruption of performance on an ascending fixed-ratio task. Irradiation produced a disruption of operant responding in rats tested 5 and 8 months after exposure, which was prevented by maintaining the rats on a diet containing strawberry, but not blueberry, extract. When teste ...
Handle:
10113/10956
DOI:
10.1007/s11357-005-4000-0
PubMed:
23598605
PubMed Central:
PMC3456091

10. Flavonol glycosides and antioxidant capacity of various blackberry and blueberry genotypes determined by high-performance liquid chromatography/mass spectrometry

Author:
Cho, M.J.; Howard, L.R.; Prior, R.L.; Clark, J.R.
Source:
Journal of the science of food and agriculture 2005 v.85 no.13 pp. 2149-2158
ISSN:
0022-5142
Subject:
cultivars; hybrids; free radicals; flavonols; high performance liquid chromatography; free radical scavengers; mass spectrometry; genotype; fruit composition; interspecific hybridization; blackberries; antioxidant activity; blueberries; glycosides; phenolic compounds
Abstract:
... Flavonol glycoside composition and content in blueberry and blackberry extracts were determined using a high-performance liquid chromatographic (HPLC) separation method coupled with photodiode array (PDA) and mass spectrometric (MS) detection. The hydrophilic antioxidant capacities of crude and fractionated flavonol extracts were also determined by the oxygen radical-absorbing capacity (ORAC(FL)) ...
Handle:
10113/19312
DOI:
10.1002/jsfa.2209

11. Functional role of anthocyanins in high-light winter leaves of the evergreen herb Galax urceolata

Author:
Hughes, N.M.; Neufeld, H.S.
Source:
New phytologist 2005 v.168 no.3 pp. 575-587
ISSN:
0028-646X
Subject:
anthocyanins; plant physiology; plant stress; winter; herbaceous plants; photoinhibition; cold stress; light intensity; Ericales; plant ecology; antioxidant activity; chlorophyll
Abstract:
... High-light leaves of the evergreen herb Galax urceolata exhibit a striking color change from green to red during winter months due to anthocyanin synthesis in outermost mesophyll cells. Here we investigate three possible functions of this color change. • To test the hypothesis that anthocyanins function as light attenuators, maximum photosystem II efficiency (Fv/Fm) of red and green leaves was mea ...
Handle:
10113/36516
DOI:
10.1111/j.1469-8137.2005.01546.x
PubMed:
16313641

12. Genetic and environmental variation in anthocyanins and their relationship to antioxidant activity in blackberry and hybridberry cultivars

Author:
Connor, A.M.; Finn, C.E.; McGhie, T.K.; Alspach, P.A.
Source:
Journal of the American Society for Horticultural Science 2005 v.130 no.5 pp. 680-687
ISSN:
0003-1062
Subject:
anthocyanins; cultivars; hybrids; geographical variation; Rubus plicatus; genetic variation; blackberries; antioxidant activity; phenolic compounds; Oregon; New Zealand
Abstract:
... Dietary anthocyanins (ACYs) may give health benefits through their antioxidant activity (AA) or other physiological effects. We examined AA and ACY profiles and contents in 16 blackberry and hybridberry (Rubus L. species) cultivars harvested in 2002 and 2003 in New Zealand and Oregon. Total ACY content varied widely among cultivars harvested from a single site in a single year (e.g., from 58 to 34 ...
Handle:
10113/17420

13. Growth hormone alters methionine and glutathione metabolism in Ames dwarf mice

Author:
Brown-Borg, Holly M.; Rakoczy, Sharlene G.; Uthus, Eric O.
Source:
Mechanisms of ageing and development 2005 v.126 no.3 pp. 389-398
Subject:
dwarfing; glutathione; longevity; somatotropin; enzymes; mice; hormonal regulation; mutants; methionine; enzyme activity; amino acid metabolism; antioxidant activity
Abstract:
... Reduced signaling of the growth hormone (GH)/insulin-like growth factor-1(IGF-1)/insulin pathway is associated with extended life span in several species. Ames dwarf mice are GH and IGF-1 deficient and live 50-64% longer than wild type littermates (males and females, respectively). Previously, we have shown that Ames mice exhibit elevated levels of antioxidative enzymes and lower oxidative damage. ...
Handle:
10113/39746
DOI:
10.1016/j.mad.2004.09.005
PubMed:
15664625

14. Involvement of acetosyringone in plant–pathogen recognition

Author:
Baker, C. Jacyn; Mock, Norton M.; Whitaker, Bruce D.; Roberts, Daniel P.; Rice, Clifford P.; Deahl, Kenneth L.; Aver'yanov, Andrey A.
Source:
Biochemical and biophysical research communications 2005 v.328 no.1 pp. 130-136
ISSN:
1090-2104
Subject:
plant pathogenic bacteria; Pseudomonas syringae pv. tabaci; host-pathogen relationships; redox reactions; bacterial diseases of plants; cultured cells; Nicotiana tabacum; disease resistance; resistance mechanisms; antioxidant activity; cell suspension culture; tobacco; acetosyringone
Abstract:
... In this study, acetosyringone was identified as one of the major extracellular phenolics in tobacco suspension cells and was shown to have bioactive properties that influence early events in plant–bacterial pathogenesis. In our model system, tobacco cell suspensions treated with bacterial isolate Pseudomonas syringae WT (HR+) undergo a resistant interaction characterized by a burst in oxygen uptak ...
Handle:
10113/38737
DOI:
10.1016/j.bbrc.2004.12.153

15. Mechanistic aspects of the interaction between selenium and arsenic

Author:
Zeng, Huawei; Uthus, Eric O.; Combs, Gerald F. Jr.
Source:
Journal of inorganic biochemistry 2005 v.99 no.6 pp. 1269–1274
Subject:
dietary minerals; selenium; anticarcinogenic activity; antinutritional factors; nutrient-nutrient interactions; antagonists; arsenic; carcinogens; carcinogenesis; chemoprevention; biochemical mechanisms; antioxidants; antioxidant activity; immunostimulants; cell cycle; apoptosis
Abstract:
... Selenium is an essential trace element for humans and other animals, and there is mounting evidence for the efficacy of certain forms of selenium as cancer-chemopreventive compounds. However, over the years, numerous elements such as As, Cu, Zn, Cd, Hg, Sn, Pb, Ni, Co, Sb, Bi, Ag, Au, and Mo have been found to inhibit anti-carcinogenic effects of selenium, which may affect the anti-carcinogenic ac ...
Handle:
10113/47238
DOI:
10.1016/j.jinorgbio.2005.03.006

16. Reversing the deleterious effects of aging on neuronal communication and behavior: beneficial properties of fruit polyphenolic compounds

Author:
Joseph, J.A.; Shukitt-Hale, B.; Casadesus, G.
Source:
American journal of clinical nutrition AJN 2005 v.81 no.1 pp. 313S-316S
Subject:
memory; polyphenols; diet; neurophysiology; neurons; humans; brain; inflammation; animal models; cognition; antioxidant activity; antioxidants
Abstract:
... Despite elegant research involving molecular biology studies and determination of the genetic mechanisms of aging, practical information on how to forestall or reverse the deleterious effects of aging may be years away. If this is the case, then it is prudent to try to establish other methods that can be used now to alter the course of aging. Numerous epidemiologic studies have indicated that indi ...
Handle:
10113/10959

17. Serum superoxide dismutase 3 (extracellular superoxide dismutase) activity is a sensitive indicator of Cu status in rats

Author:
Johnson, W.T.; Johnson, L.A.K.; Lukaski, H.C.
Source:
Journal of nutritional biochemistry 2005 v.16 no.11 pp. 682-692
ISSN:
0955-2863
Subject:
rats; animal models; nutritional status; copper; nutrient deficiencies; biomarkers; blood serum; superoxide dismutase; enzyme activity; antioxidant activity; dietary mineral supplements; dietary minerals; nutrient intake; nutrient availability; liver; kidneys; ferroxidase; cytochrome-c oxidase
Abstract:
... Sensitivity of the assay for Cu,Zn superoxide dismutase 3 (SOD3), the predominant form of SOD in serum, can be increased, and interferences caused by low-molecular-weight substances in the serum can be reduced by conducting the assay at pH 10 with xanthine/xanthine oxidase and acetylated cytochrome c (cyt c) as superoxide generator and detector, respectively. Serum SOD3 activity was assayed under ...
Handle:
10113/36356
DOI:
10.1016/j.jnutbio.2005.03.009
PubMed:
16081273

18. Vitamin E Protects against Photoinhibition and Photooxidative Stress in Arabidopsis thaliana

Author:
Havaux, Michel; Eymery, Françoise; Porfirova, Svetlana; Rey, Pascal; Dörmann, Peter
Source:
plant cell 2005 v.17 no.12 pp. 3451-3469
ISSN:
1040-4651
Subject:
Arabidopsis thaliana; tocopherols; fluorescence; air temperature; photoinhibition; light intensity; zeaxanthin; antioxidant activity; chlorophyll; photooxidation; antioxidants; leaves
Abstract:
... Vitamin E is considered a major antioxidant in biomembranes, but little evidence exists for this function in plants under photooxidative stress. Leaf discs of two vitamin E mutants, a tocopherol cyclase mutant (vte1) and a homogentisate phytyl transferase mutant (vte2), were exposed to high light stress at low temperature, which resulted in bleaching and lipid photodestruction. However, this was n ...
DOI:
10.1105/tpc.105.037036
PubMed:
16258032
PubMed Central:
PMC1315381

19. Zinc Supplementation Prevents Alcoholic Liver Injury in Mice through Attenuation of Oxidative Stress

Author:
Zhou, Zhanxiang; Wang, Lipeng; Song, Zhenyuan; Saari, Jack T.; McClain, Craig J.; Kang, Y. James
Source:
American journal of pathology 2005 v.166 no.6 pp. 1681-1690
ISSN:
1525-2191
Subject:
zinc; dietary mineral supplements; hepatoprotective effect; liver diseases; ethanol; alcoholic beverages; oxidative stress; reactive oxygen species; antioxidant activity; alcohol dehydrogenase; enzyme activity; glutathione; cytochrome P-450; liver; mineral content; mice
Abstract:
... Alcoholic liver disease is associated with zinc decrease in the liver. Therefore, we examined whether dietary zinc supplementation could provide protection from alcoholic liver injury. Metallothionein-knockout and wild-type 129/Sv mice were pair-fed an ethanol-containing liquid diet for 12 weeks, and the effects of zinc supplementation on ethanol-induced liver injury were analyzed. Zinc supplement ...
Handle:
10113/37489
PubMed:
15920153
PubMed Central:
PMC1602418

20. The endophytic fungus Piriformospora indica reprograms barley to salt-stress tolerance, disease resistance, and higher yield

Author:
Waller, F.; Achatz, B.; Baltruschat, H.; Fodor, J.; Becker, K.; Fischer, M.; Heier, T.; Huckelhoven, R.; Neumann, C.; Wettstein, D. von
Source:
Proceedings of the National Academy of Sciences of the United States of America 2005 v.102 no.38 pp. 13386-13391
ISSN:
0027-8424
Subject:
Blumeria graminis f. sp. hordei; foliar diseases; roots; endophytes; barley; glutathione; Hordeum vulgare; systemic acquired resistance; powdery mildew; grain yield; disease resistance; leaves; Fusarium culmorum; antioxidant activity; salt stress; ascorbic acid; Bipolaris sorokiniana; salt tolerance; symbiosis; root rot
Abstract:
... Disease resistance strategies are powerful approaches to sustainable agriculture because they reduce chemical input into the environment. Recently, Piriformospora indica, a plant-root-colonizing basidiomycete fungus, has been discovered in the Indian Thar desert and was shown to provide strong growth-promoting activity during its symbiosis with a broad spectrum of plants [Verma, S. et al. (1998) M ...
DOI:
10.1073/pnas.0504423102
PubMed:
16174735
PubMed Central:
PMC1224632