Academic literature on the topic 'Alpha carotene'

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Journal articles on the topic "Alpha carotene"

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Thurnham, D. I., E. Smith, and P. S. Flora. "Concurrent liquid-chromatographic assay of retinol, alpha-tocopherol, beta-carotene, alpha-carotene, lycopene, and beta-cryptoxanthin in plasma, with tocopherol acetate as internal standard." Clinical Chemistry 34, no. 2 (1988): 377–81. http://dx.doi.org/10.1093/clinchem/34.2.377.

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Abstract A method is described for simultaneously determining retinol, alpha-tocopherol, beta-carotene, alpha-carotene, lycopene, and beta-cryptoxanthin in 0.25 mL of plasma. Plasma mixed with sodium dodecyl sulfate is deproteinized with ethanol containing tocopherol acetate, then extracted with heptane. The evaporated organic layer is reconstituted with mobile phase (methanol/acetonitrile/chloroform, 47/47/6 by vol) and injected onto a 100 x 4.6 mm 3-micron column of Spherisorb ODS-2 (LKB) at 1.5 mL/min. The alpha- and beta-carotenes are well resolved during the 6.5-min run. Retinol is monito
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Furusho, Kataoka, Yasuhara, Wada, and Masushige. "Retinol Equivalence of Carotenoids Can be Evaluated by Hepatic Vitamin A Content." International Journal for Vitamin and Nutrition Research 70, no. 2 (2000): 43–47. http://dx.doi.org/10.1024/0300-9831.70.2.43.

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The present study demonstrates a new method to evaluate the bioavailability of carotenoids based on the calculation of the hepatic retinol contents. Weaning male rats of Wistar strain were divided into 5 groups. Each group respectively received retinol acetate (2000–10000 IU per kg diet), alpha-carotene (2400–6000 mug per kg diet), beta-carotene (2400–6000 mug per kg diet), mixture of alpha- and beta-carotenes in the ratio of 1:2 (2400 and 4800 mug per kg diet), and palm-carotene oil (2400–6000 mug per kg diet). The derived retinol equivalences of each carotenoid calculated according to the he
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Strauss, Richard. "SERUM CONCENTRATIONS OF ALPHA-TOCOPHEROL, ALPHA-CAROTENE, AND BETA-CAROTENE IN OBESE CHILDREN." Journal of Pediatric Gastroenterology & Nutrition 27, no. 4 (1998): 495. http://dx.doi.org/10.1097/00005176-199810000-00147.

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Strauss, Richard. "SERUM CONCENTRATIONS OF ALPHA‐TOCOPHEROL, ALPHA‐CAROTENE, AND BETA‐CAROTENE IN OBESE CHILDREN." Journal of Pediatric Gastroenterology and Nutrition 27, no. 4 (1998): 495. http://dx.doi.org/10.1002/j.1536-4801.1998.tb01336.x.

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Sowell, A. L., D. L. Huff, P. R. Yeager, S. P. Caudill, and E. W. Gunter. "Retinol, alpha-tocopherol, lutein/zeaxanthin, beta-cryptoxanthin, lycopene, alpha-carotene, trans-beta-carotene, and four retinyl esters in serum determined simultaneously by reversed-phase HPLC with multiwavelength detection." Clinical Chemistry 40, no. 3 (1994): 411–16. http://dx.doi.org/10.1093/clinchem/40.3.411.

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Abstract We describe the use of HPLC with multiwavelength detection to measure retinol, alpha-tocopherol, lutein/zeaxanthin, beta-cryptoxanthin, lycopene, alpha-carotene, trans-beta-carotene, beta-carotene, and the linoleate, oleate, palmitate, and stearate esters of retinol in a single 200-microL serum sample. The method is sensitive enough to detect individual retinyl esters in fasting serum from a nonhyperlipidemic population and requires only 12 min for each sample. Serum concentration ranges and means are reported for retinol, alpha-tocopherol, lutein/zeaxanthin, beta-cryptoxanthin, lycop
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Morinobu, Takao, Takuji Murata, Ryuzo Takaya, and Hiroshi Tamai. "Nutritional Status of beta-Carotene, alpha-Tocopherol and Retinol in Obese Children." International Journal for Vitamin and Nutrition Research 72, no. 3 (2002): 119–23. http://dx.doi.org/10.1024/0300-9831.72.3.119.

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We investigated the concentrations of beta-carotene, alpha-tocopherol, and retinol in obese children, together with assessment of the influence of relative body weight and plasma lipids. A lower plasma beta-carotene level was observed in the obese children, and plasma beta-carotene was inversely correlated with the relative body weight, but not with plasma total lipids. In contrast, the plasma alpha-tocopherol concentration was correlated with plasma total lipids, but not with the severity of obesity. Both the beta-carotene/plasma total lipids ratio and the alpha-tocopherol/plasma total lipids
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Kulishova, Ksenia E., and Nataliia V. Rudometova. "Influence of antioxidants on the stability of beta-carotene in multicomplex systems." Processes and Food Production Equipment 15, no. 4 (2022): 3–10. http://dx.doi.org/10.17586/2310-1164-2022-15-4-3-10.

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To prevent further degradation of partially oxidized beta-carotene, inclusion complexes based on beta-cyclodextrin and antioxidants (alpha-tocopherol (vitamin E), ascorbic acid, and vanillin) have been developed. The complexes were obtained by the solid-phase method with intensive stirring for four hours with periodic moistening to the state of a paste, then dried in a desiccator at a temperature of 2…5С, and ground to a powder. The content of beta-carotene in the complexes was determined on a Varian-LC 920 high-performance liquid chromatograph with a Hypersil 5 AA-ODS 200 x 2.1 mm column usi
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Lagiou, Benetou, Tebelis, Papas, Naska, and Trichopoulou. "Plasma Carotenoid Levels in Relation to Tobacco Smoking and Demographic Factors." International Journal for Vitamin and Nutrition Research 73, no. 3 (2003): 226–31. http://dx.doi.org/10.1024/0300-9831.73.3.226.

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Antioxidant compounds have been reported to play a beneficial role in the etiology of several chronic diseases. To examine the effects of tobacco smoking and demographic factors on the plasma levels of alpha-carotene, beta-carotene, lycopene, beta-cryptoxanthin, and jointly, lutein-zeaxanthin, we have conducted a cross-sectional study in the context of the Greek segment of the European Prospective Investigation into Cancer and nutrition (EPIC). A random sample of 45 men and 68 women, aged 30–82 years, from the Greek EPIC cohort of 27953 volunteers, provided fasting blood samples and completed
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Kiely, Cogan, Kearney, and Morrissey. "Relationship Between Smoking, Dietary Intakes and Plasma Levels of Vitamin E and beta-Carotene in Matched Maternal-cord Pairs." International Journal for Vitamin and Nutrition Research 69, no. 4 (1999): 262–67. http://dx.doi.org/10.1024/0300-9831.69.4.262.

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The concentrations of tocopherols and carotenoids are lowered in umbilical cord blood plasma, which may have a negative effect on antioxidant protection in neonates. Smoking may adversely affect dietary intakes and plasma concentrations of carotenoids. The dietary intakes of vitamin E and beta-carotene were assessed in 66 pregnant women (31 smokers and 35 non-smokers) between 10 and 20 weeks gestation using a food frequency questionnaire. The concentrations of alpha-tocopherol and beta-carotene were measured in maternal plasma at the time of the dietary assessment, and in the matched umbilical
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MacCrehan, W. A., and E. Schönberger. "Determination of retinol, alpha-tocopherol, and beta-carotene in serum by liquid chromatography with absorbance and electrochemical detection." Clinical Chemistry 33, no. 9 (1987): 1585–92. http://dx.doi.org/10.1093/clinchem/33.9.1585.

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Abstract We describe a method for the determination of retinol, alpha-tocopherol, and beta-carotene in serum, using a liquid-chromatographic separation with wavelength-programmed ultraviolet/visible absorbance and amperometric electrochemical detection with a glassy carbon electrode. After protein denaturation and addition of an internal standard, tocol, 250-microL samples are twice extracted with hexane. The reversed-phase, gradient-elution chromatographic separation provides baseline resolution of: the all-trans isomer of retinol from the cis isomers, alpha- from gamma-tocopherol, and all-tr
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Dissertations / Theses on the topic "Alpha carotene"

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Kim, Yuri. "The protective effect of combined antioxidants ([beta]-carotene, [alpha]-tocopherol and ascorbic acid) supplementation against chemical carcinogen (NNK)-induced lung carcinogenesis in smoke-exposed ferrets /." Thesis, Connect to Dissertations & Theses @ Tufts University, 2005.

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Thesis (Ph.D.)--Tufts University, 2005.<br>Adviser: Xiang-Dong Wang. Submitted to the School of Nutrition Science and Policy. Includes bibliographical references. Access restricted to members of the Tufts University community. Also available via the World Wide Web;
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Saad, Paulo César Bálade. "Efeitos da associação do beta-caroteno, alfa-tocoferol e do fumo no câncer de pulmão." Faculdade de Medicina de São José do Rio Preto, 2006. http://bdtd.famerp.br/handle/tede/227.

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Made available in DSpace on 2016-01-26T12:51:52Z (GMT). No. of bitstreams: 1 paulo saad_tese.pdf: 455472 bytes, checksum: 76fed03b80932ea6f964693d4c8d92cf (MD5) Previous issue date: 2006-06-19<br>Cigarettes accounts for the death of millions of people a year worldwide, directly related to lung cancer. Some studies have shown that larger plasmatic indexes of beta-carotene or a great ingestion of foods rich in carotenoids diminish the risk of developing this neoplasia. On the other hand, studies suggest that the smokers' lung can alter the metabolism of beta-carotene, that is, producing greate
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Hadorn, Ulrich. "Colostrum intake by calves on the first day of life is needed for a normal lipid, essential fatty acid, carotene, retinol, alpha-tocopherol and gamma-globulin status and has important metabolic and endocrine effects /." [S.l.] : [s.n.], 1996. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.

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Åsgård, Rikard. "Effects of Antioxidants and Pro-oxidants on Oxidative Stress and DNA Damage using the Comet Assay : Studies on Blood Cells from Type 2 Diabetes Subjects and Mouse Lymphoma Cells." Doctoral thesis, Uppsala universitet, Institutionen för farmaceutisk biovetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-217886.

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Diet and oral supplements comprise two distinct sources of antioxidants known to prevent oxidative stress. Beneficial effects from antioxidants have been seen for patients at risk for type 2 diabetes. The aim of this thesis was to evaluate the positive effects of antioxidants against oxidative stress and DNA damage in type 2 diabetes subjects. We also used antioxidants as tools to determine the mechanisms behind genotoxicity induced by mutagenic pro-oxidative agents in mouse lymphoma cells. Several techniques were used to measure oxidative stress and DNA damage, but the main technique used was
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Linden, Sven. "[Alpha]-Tocopherol [Alpha-Tocopherol], [beta]-Carotin [Beta-Carotin] und L-Ascorbinsäure in der Rindermast Einfluss auf Qualitätsparameter /." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=968806600.

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Bahng, Hee-Jeong. "Antioxidants as Risk Factors for Gingival Bleeding." VCU Scholars Compass, 2004. http://scholarscompass.vcu.edu/etd/1516.

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Background: Studies of gingival bleeding and the effects of antioxidants on extracellular matrix and immunologic and inflammatory responses provide a rationale for hypothesizing that antioxidants reduce the risk for gingival bleeding.Methods: This study evaluated the role of antioxidants as contributing risk factors for gingival bleeding utilizing the Third National Health and Nutrition Examination Survey (NAHNES III). A sample of 18,825 adults (20 to ≥ 90 years of age), with dental measurement and assessment of serum levels of antioxidants were included in the study. Gingival bleeding was def
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Eroglu, Abdulkerim. "APOCAROTENOIDS MODULATE RETINOID RECEPTORS." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1338314466.

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Kramer, Jacqueline Bauer. "Effects of beta-carotene and alpha-tocopherol on stability of soybean oil." 1986. http://hdl.handle.net/2097/22097.

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Chen, Huei-Yan, and 陳惠宴. "The anti-metastatic effects and mechanisms of alpha-carotene and the combination of multi-carotenoids in human hepatocarcinoma SK-Hep-1 cells." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/59211460638177678507.

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碩士<br>國立中興大學<br>食品暨應用生物科技學系所<br>100<br>Cancer metastasis is a major cause of death for cancer patients, so effectively inhibited the metastasis of cancer cells can be used as one of the therapeutic strategies. alpha-Carotene is one of major carotenoids in human plasma, and is found in dark green and orange fruits and vegetables such as carrots, pumpkin, spinach and tomato. alpha-Carotene has been shown to possess anti-cancer activity both in vitro and in vivo. Epidemiological studies have indicated that elevated serum alpha-carotene concentration is associated with reduced risks of several
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Linden, Sven [Verfasser]. "α-Tocopherol [Alpha-Tocopherol], β-Carotin [Beta-Carotin] und L-Ascorbinsäure in der Rindermast : Einfluss auf Qualitätsparameter / vorgelegt von Sven Linden". 2003. http://d-nb.info/968806600/34.

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Books on the topic "Alpha carotene"

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Kerkhoff, Guido. Einfluss von Ascorbinsäure, [beta]-Carotin, DL-alpha-Tocopherol, Vitamin A-aldehyd, Vitamin K undRiboflavin auf den durch Cyclophosphamid oder Trp-P-2 induzierten Schwesterchromatidaustausch in menschlichen Lymphozytenkulturen. 1995.

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Book chapters on the topic "Alpha carotene"

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"Retinol, Beta-Carotene, and Alpha-Tocopherol in Heart Disease." In Nutrition and Heart Disease. CRC Press, 2003. http://dx.doi.org/10.1201/9780203507629-14.

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Lopes, Carla, Susana Casal, Beatriz Oliveira, and Henrique Barros. "Retinol, Beta-Carotene, and Alpha-Tocopherol in Heart Disease." In Nutrition and Heart Disease. CRC Press, 2003. http://dx.doi.org/10.1201/9780203507629.ch8.

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Conference papers on the topic "Alpha carotene"

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Mondul, Alison M., Steven C. Moore, Joshua N. Sampson та ін. "Abstract LB-30: Metabolomic profile of response to β-carotene supplementation reveals potential for pharmacologic interactions with β-carotene in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study." У Proceedings: AACR 104th Annual Meeting 2013; Apr 6-10, 2013; Washington, DC. American Association for Cancer Research, 2013. http://dx.doi.org/10.1158/1538-7445.am2013-lb-30.

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Moy, Kristin A., Stephanie Weinstein, Satu Männistö, and Demetrius Albanes. "Abstract 2183: Serum alpha-tocopherol, beta carotene and cancer survival in the ATBC Study." In Proceedings: AACR Annual Meeting 2014; April 5-9, 2014; San Diego, CA. American Association for Cancer Research, 2014. http://dx.doi.org/10.1158/1538-7445.am2014-2183.

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Hada, Manila, Alison Mondul, Stephanie Weinstein, and Demetrius Albanes. "Abstract 2275: Serum retinol and risk of overall and site-specific cancer in the Alpha Tocopherol, Beta-Carotene Cancer Prevention Study." In Proceedings: AACR Annual Meeting 2017; April 1-5, 2017; Washington, DC. American Association for Cancer Research, 2017. http://dx.doi.org/10.1158/1538-7445.am2017-2275.

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Song, Minkyo, Maria Constanza Camargo, Stephanie J. Weinstein, Demetrius Albanes, and Charles S. Rabkin. "Abstract 4270: Family history in first degree relatives and risk of gastric cancer in the alpha-tocopherol, beta-carotene cancer prevention study." In Proceedings: AACR Annual Meeting 2017; April 1-5, 2017; Washington, DC. American Association for Cancer Research, 2017. http://dx.doi.org/10.1158/1538-7445.am2017-4270.

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Anic, Gabriella M., Stephanie J. Weinstein, Satu Männistö, and Demetrius Albanes. "Abstract 2180: Serum 25-hydroxyvitamin D, vitamin D binding protein, and lung cancer survival in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study." In Proceedings: AACR Annual Meeting 2014; April 5-9, 2014; San Diego, CA. American Association for Cancer Research, 2014. http://dx.doi.org/10.1158/1538-7445.am2014-2180.

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Reports on the topic "Alpha carotene"

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Rocheford, Torbert, Yaakov Tadmor, Robert Lambert, and Nurit Katzir. Molecular Marker Mapping of Genes Enhancing Tocol and Carotenoid Composition of Maize Grain. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7571352.bard.

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The overall objective of this research was to identify chromosomal regions and candidate genes associated with control of concentration and forms of carotenoids (includes pro-Vitamin A) and tocopherols (Vitamin E), which are both antioxidants and are associated with health advantages. Vitamin A and E are included in animal feeding supplements and the eventual goal is to increase levels of these compounds in maize grain so that the cost of these supplements can be reduced or eliminated. Moreover, both compounds are antioxidants that protect unsaturated fatty acids from oxidation and thus mainta
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