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Showing 1-30 of 123 results for "PHR1239" within Papers
Ana M González et al.
Natural product communications, 7(12), 1663-1666 (2013-02-19)
The essential oil and methanol extract of northwestern Argentina medicinal plant Xenophyllum poposum, collected in Catamarca province, were investigated. GC and GC-MS analyses of the essential oil identified 56 compounds accounting for 92.9%. The main components of the oil were
Werner Siems et al.
The Journal of nutritional biochemistry, 16(7), 385-397 (2005-07-05)
Beta-carotene (BC) and other carotenoids are mainly considered as belonging to the group of micronutrients. As they are contained in fruit and vegetables and thus part of human diet, a regular low-dose intake from natural sources is normally assured. In
Bryan Gannon et al.
The American journal of clinical nutrition, 100(6), 1541-1550 (2014-11-21)
Biofortification is a strategy to relieve vitamin A (VA) deficiency. Biofortified maize contains enhanced provitamin A concentrations and has been bioefficacious in animal and small human studies. The study sought to determine changes in total body reserves (TBRs) of vitamin
J Lee et al.
Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.), 223(2), 170-174 (2000-02-02)
Excessive exposure to solar radiation, especially ultraviolet A (UVA: 320-400 nm) and ultraviolet B (UVB: 290-320 nm) radiation, may induce UV-carcinogenesis and erythema in the skin. Although the protective effects of carotenoids against skin lesions are still unclear, beta-carotene has
Ola Kally Magnusdottir et al.
The Journal of nutrition, 143(9), 1383-1390 (2013-07-12)
Biomarkers of dietary intake can be important tools in nutrition research. Our aim was to assess whether plasma alkylresorcinol (AR) and β-carotene concentrations could be used as dietary biomarkers for whole-grain, fruits and vegetables in a healthy Nordic diet (ND).
Rachel E Kopec et al.
The Journal of nutrition, 144(8), 1158-1166 (2014-06-06)
Dietary lipids have been shown to increase bioavailability of provitamin A carotenoids from a single meal, but the effects of dietary lipids on conversion to vitamin A during absorption are essentially unknown. Based on previous animal studies, we hypothesized that
Kana Wu et al.
Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology, 13(2), 260-269 (2004-02-20)
The association between plasma carotenoids and prostate cancer risk was investigated in a case-control study nested within the prospective Health Professionals Follow-up Study. We matched 450 incident prostate cancer cases diagnosed from 1993-1998 to 450 controls by age, time, month
Patrick Borel et al.
The Journal of nutrition, 143(4), 448-456 (2013-02-22)
Scavenger receptor class B type I (SR-BI) and cluster determinant 36 (CD36) have been involved in cellular uptake of some provitamin A carotenoids. However, data are incomplete (e.g., there are no data on α-carotene), and it is not known whether
Gangping Hao et al.
Plant physiology and biochemistry : PPB, 70, 21-32 (2013-06-19)
The enzyme 1-hydroxy-2-methyl-2-(E)-butenyl-4-diphosphate reductase (HDR) is a terminal-acting enzyme in the plastid MEP pathway, which produce isoprenoid precursors. The full-length cDNA of HDR, designated SmHDR1 (Genbank Accession No. JX516088), was isolated for the first time from Salvia miltiorrhiza Bge. f.
Hui-Wen Lin et al.
Food chemistry, 134(4), 2169-2175 (2013-02-28)
Carotenoids are effective antioxidants, which can quench singlet oxygen, suppress lipid peroxidation, and prevent oxidative damage. Both Pseudorabies virus (PRV) and human Herpes simplex virus (HSV) are DNA viruses, and their pathogenesis and immunobiology are similar. However, PRV does not
Ellie Souganidis et al.
Nutrients, 5(8), 3257-3271 (2013-08-21)
Vitamin A deficiency continues to be an international public health problem with several important health consequences including blindness and overall increased rates of morbidity and mortality. To address this widespread issue, a series of strategies have been put into place
Elizabeth Spiegler et al.
Biochimica et biophysica acta, 1821(1), 88-98 (2011-05-31)
The requirement of the developing mammalian embryo for retinoic acid is well established. Retinoic acid, the active form of vitamin A, can be generated from retinol and retinyl ester obtained from food of animal origin, and from carotenoids, mainly β-carotene
Yanxia Zhang et al.
Nature chemical biology, 10(12), 1028-1033 (2014-10-27)
Strigolactones (SLs) are a class of phytohormones and rhizosphere signaling compounds with high structural diversity. Three enzymes, carotenoid isomerase DWARF27 and carotenoid cleavage dioxygenases CCD7 and CCD8, were previously shown to convert all-trans-β-carotene to carlactone (CL), the SL precursor. However
W G Rushin et al.
Clinical chemistry, 36(11), 1986-1989 (1990-11-01)
All-trans-beta-carotene was resolved from its cis isomers in human serum by reversed-phase "high-performance" liquid chromatography. Absorption spectra of the cis peak suggested that 13-cis-beta-carotene was the predominant cis isomer. Analyses and recovery studies of fresh and stored sera eliminated the
G Menichini et al.
Cell proliferation, 46(2), 193-202 (2013-03-21)
Our interest continues in discovering phytocomplexes from medicinal plants with phototoxic activity against human melanoma cells; thus the aim of the present study was to assess antioxidant, anti-inflammatory and phototoxic activity of Hypericum perforatum L. subsp. perforatum, and relate these
Paola Palozza
Biochimica et biophysica acta, 1740(2), 215-221 (2005-06-14)
Many studies suggest a protective role of beta-carotene against cancer. However, the ATBC and the CARET trials have shown that beta-carotene increases the incidence of lung cancer in heavy smokers and asbestos workers. To explain this paradox, it can be
Ulrike Heinrich et al.
The Journal of nutrition, 133(1), 98-101 (2003-01-07)
Carotenoids are useful oral sun protectants, and supplementation with high doses of beta-carotene protects against UV-induced erythema formation. We compared the erythema-protective effect of beta-carotene (24 mg/d from an algal source) to that of 24 mg/d of a carotenoid mix
Wan Mohd Nuzul Hakimi Wan Salleh et al.
Natural product communications, 7(12), 1659-1662 (2013-02-19)
This study was designed to investigate the antioxidant and antimicrobial activities of the essential oils from Piper officinarum C. DC. GC and GC/MS analysis of the leaf and stem oils showed forty one components, representing 85.6% and 93.0% of the
L Salvia-Trujillo et al.
Food chemistry, 141(2), 1472-1480 (2013-06-26)
The interest in incorporating carotenoids, such as β-carotene, into foods and beverages is growing due to their potential health benefits. However, the poor water-solubility and low bioavailability of carotenoids is currently a challenge to their incorporation into many foods. The
Asgar Ali et al.
Food chemistry, 142, 19-26 (2013-09-05)
The objective of this study was to compare the physico-chemical characteristics and antioxidant activity of ozone-treated papaya fruit and untreated fruit. Freshly harvested papaya fruit were exposed continuously to ozone fumigation (0, 1.5, 2.5, 3.5 and 5ppm) for 96h prior
Don D Sin et al.
Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 31(36), 4536-4543 (2013-11-20)
Preliminary studies have identified pro-surfactant protein B (pro-SFTPB) to be a promising blood biomarker for non-small-cell lung cancer. We conducted a study to determine the independent predictive potential of pro-SFTPB in identifying individuals who are subsequently diagnosed with lung cancer.
Simultaneous determination of retinol, alpha-tocopherol and beta-carotene in serum by isocratic high-performance liquid chromatography
Arnaud J, et al.
Journal of Chromatography. B, Biomedical Sciences and Applications, 572(1-2), 103-116 (1991)
Usama Ahmed Ali et al.
The Cochrane database of systematic reviews, 8(8), CD008945-CD008945 (2014-08-22)
Reduced intake and absorption of antioxidants due to pain and malabsorption are probable causes of the lower levels of antioxidants observed in patients with chronic pancreatitis (CP). Improving the status of antioxidants might be effective in slowing the disease process
Ying Wang et al.
The Journal of nutrition, 144(7), 1067-1074 (2014-04-20)
Hyperlipidemia and elevated circulating C-reactive protein (CRP) and total homocysteine (tHcy) concentrations are cardiovascular disease (CVD) risk factors. Previous studies indicated that higher serum carotenoid concentrations were inversely associated with some of these biomarkers. However, whether dietary carotenoid intake is
N Chanarat et al.
The Southeast Asian journal of tropical medicine and public health, 32(3), 500-503 (2002-04-12)
HIV/AIDS is a multifactorial and multi-step disease. No single treatment against AIDS can save a patient. Our last report showed that vitamin A, vitamin E and beta-carotene were decreased while malondialdehyde (MDA) was increased. This report aims to evaluate biochemical
Jongtaek Lee et al.
Journal of nanoscience and nanotechnology, 13(11), 7430-7433 (2013-11-20)
Beta-carotene was inserted into single-walled carbon nanotubes (SWCNTs) by using the encapsulation method in a solution phase, and the energy transfer process was studied under irradiation of visible light. The encapsulation of beta-carotene inside SWCNTs was confirmed by ultraviolet (UV)/visible
Frank McArdle et al.
The American journal of clinical nutrition, 80(5), 1270-1275 (2004-11-09)
Ultraviolet radiation (UVR) generates reactive oxygen species in skin that can play a role in skin damage, but reports about the photoprotective properties of oral antioxidant supplements are conflicting. We examined the ability of 2 lipid-soluble antioxidants, vitamin E and
Virginia A Moyer
Annals of internal medicine, 160(8), 558-564 (2014-02-26)
Update of the 2003 U.S. Preventive Services Task Force (USPSTF) recommendation on vitamin supplementation to prevent cardiovascular disease and cancer. The USPSTF reviewed the evidence on the efficacy of multivitamin or mineral supplements in the general adult population for the
Suellen Gomes et al.
Food and nutrition bulletin, 34(1), 65-74 (2013-06-19)
The effects of boiling and frying on the bioaccessibility of all-trans-beta-carotene in biofortified BRS Jari cassava roots have not been investigated, although these are conventional methods of cassava preparation. The aims of the present study were to investigate beta-carotene micellarization
Nan-Hee Jeong et al.
Acta obstetricia et gynecologica Scandinavica, 88(4), 434-439 (2009-02-25)
To examine the relation between the plasma concentration of antioxidant micronutrients and endometrial cancer risk in Korean women. Hospital-based case-control study. Seven tertiary medical institutes in Korea. Incidence of 28 endometrial cancer cases were identified and 140 age-matched controls selected
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