vitamin a 3500 I.U.29% as beta carotene这是什么呀_百度知道
vitamin a 3500 I.U.29% as beta carotene这是什么呀
我在维生素片说明上看到的,
我来帮他解答
其他类似问题
vitamin的相关知识
等待您来回答
下载知道APP
随时随地咨询
出门在外也不愁Vitamin A and beta-carotene supply of women with gemini or short bi...
- PubMed - NCBI
The NCBI web site requires JavaScript to function.
FormatSummarySummary (text)AbstractAbstract (text)MEDLINEXMLPMID ListApplyChoose DestinationFileClipboardCollectionsE-mailOrderMy BibliographyCitation managerFormatSummary (text)Abstract (text)MEDLINEXMLPMID ListCSVCreate File1 selected item: FormatSummarySummary (text)AbstractAbstract (text)MEDLINEXMLPMID ListMeSH and Other DataE-mailSubjectAdditional textE-mailAdd to ClipboardAdd to CollectionsOrder articlesAdd to My BibliographyGenerate a file for use with external citation management software.Create File
):12-20. Epub
2006 Nov 10.Vitamin A and beta-carotene supply of women with gemini or short birth intervals: a pilot study.1, , , .1BioTeSys GmbH, Schelztorstr. 54-56, 73728 Esslingen, Germany. c.schulz@biotesys.deAbstractBACKGROUND: An adequate supply of vitamin A during pregnancy and breastfeeding plays an important role for development of foetus and neonate, especially in lung development and function.AIM OF THE STUDY: Aim of this pilot study was to analyze vitamin A and beta-carotene status and to investigate the contribution of nutrition to the vitamin A and beta-carotene supply in mother-infant pairs of gemini or births within short birth intervals.METHODS: Twenty-nine volunteers aged between 21 and 36 years were evaluated for 48 h after delivery. During this time frame a food frequency protocol considering 3 months retrospective was obtained from all participants. In order to establish overall supply retinol and beta-carotene levels were determined in maternal plasma, cord blood and colostrum via HPLC analysis.RESULTS: Regardless of the high to moderate socio-economic background, 27.6% of participants showed plasma retinol levels below 1.4 micromol/l which can be taken as borderline deficiency. In addition, 46.4% showed retinol intake &66% of RDA and 50.0% did not consume liver at all although liver contributes as a main source for preformed retinol. Despite high total carotenoid intake of 6.9 +/- 3.6 mg/d, 20.7% of mothers showed plasma levels &0.5 micromol/l beta-carotene. Retinol and beta-carotene levels were highly significantly correlated between maternal plasma versus cord blood and colostrum. In addition, significantly lower levels were found in cord blood (31.2 +/- 13.0% (retinol), 4.1 +/- 1.4% (beta-carotene) compared with maternal plasma.CONCLUSIONS: Despite the fact that vitamin A and beta-carotene rich food is generally available, risk groups for low vitamin A supply exist in the western world.PMID:
[PubMed - indexed for MEDLINE]
Publication TypesMeSH TermsSubstancesFull Text SourcesOther Literature SourcesMedicalMolecular Biology Databases
Supplemental Content
External link. Please review our .Protective effect of vitamin E, beta-carotene and N-acetylcysteine ...
- PubMed - NCBI
The NCBI web site requires JavaScript to function.
FormatSummarySummary (text)AbstractAbstract (text)MEDLINEXMLPMID ListApplyChoose DestinationFileClipboardCollectionsE-mailOrderMy BibliographyCitation managerFormatSummary (text)Abstract (text)MEDLINEXMLPMID ListCSVCreate File1 selected item: FormatSummarySummary (text)AbstractAbstract (text)MEDLINEXMLPMID ListMeSH and Other DataE-mailSubjectAdditional textE-mailAdd to ClipboardAdd to CollectionsOrder articlesAdd to My BibliographyGenerate a file for use with external citation management software.Create File
):475-82.Protective effect of vitamin E, beta-carotene and N-acetylcysteine from the brain oxidative stress induced in rats by lipopolysaccharide.1, , , .1Biochemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini St., 11562, Cairo, Egypt.AbstractThe major goal of this study was to examine the ability of several antioxidants namely, vitamin E, beta-carotene and N-acetylcysteine, to protect the brain from oxidative stress induced by lipopolysaccharide (LPS, endotoxin). LPS, a component of the bacterial wall of gram-negative bacteria, has been recognized as one of the most potent bacterial products in the induction of host inflammatory responses and tissue injury and was used in this study to mimic infections. LPS injection resulted in a significant increase in the stress indices, plasma corticosterone and glucose concentration, a significant alteration of the brain oxidative status observed as elevation of the level of malondialdehyde (MDA, index of lipid peroxidation) and reduction of reduced glutathione (GSH), and a disturbance in the brain energy metabolism presented as a reduction in the ATP/ADP ratio and an increase in the mitochondrial/cytosolic hexokinase ratio. However, the activities of brain superoxide dismutase and Na+, K+-ATPase and contents of cholesterol and phospholipids were not altered. Administration of the aforementioned antioxidants prior to LPS injection ameliorated the oxidative stress by reducing levels of MDA, restoring GSH content and normalizing the mitochondrial/cytosolic hexokinase ratio in the brain in addition to lowering levels of plasma corticosterone and glucose. In conclusion, this study showed the increased free radical generation during infections and LPS-induced stress. It also suggests that brain oxidative status and energy is disturbed.PMID:
[PubMed - indexed for MEDLINE]
MeSH TermsSubstancesFull Text SourcesOther Literature SourcesMedicalMolecular Biology Databases
Supplemental Content
External link. Please review our .The effect of vitamin E and beta carotene on the incidence of lung ...
- PubMed - NCBI
The NCBI web site requires JavaScript to function.
FormatSummarySummary (text)AbstractAbstract (text)MEDLINEXMLPMID ListApplyChoose DestinationFileClipboardCollectionsE-mailOrderMy BibliographyCitation managerFormatSummary (text)Abstract (text)MEDLINEXMLPMID ListCSVCreate File1 selected item: 8127329FormatSummarySummary (text)AbstractAbstract (text)MEDLINEXMLPMID ListMeSH and Other DataE-mailSubjectAdditional textE-mailAdd to ClipboardAdd to CollectionsOrder articlesAdd to My BibliographyGenerate a file for use with external citation management software.Create File
1994 Apr 14;330(15):1029-35.The effect of vitamin E and beta carotene on the incidence of lung cancer and other cancers in male smokers. The Alpha-Tocopherol, Beta Carotene Cancer Prevention Study Group.[No authors listed]AbstractBACKGROUND: Epidemiologic evidence indicates that diets high in carotenoid-rich fruits and vegetables, as well as high serum levels of vitamin E (alpha-tocopherol) and beta carotene, are associated with a reduced risk of lung cancer.METHODS: We performed a randomized, double-blind, placebo-controlled primary-prevention trial to determine whether daily supplementation with alpha-tocopherol, beta carotene, or both would reduce the incidence of lung cancer and other cancers. A total of 29,133 male smokers 50 to 69 years of age from southwestern Finland were randomly assigned to one of four regimens: alpha-tocopherol (50 mg per day) alone, beta carotene (20 mg per day) alone, both alpha-tocopherol and beta carotene, or placebo. Follow-up continued for five to eight years.RESULTS: Among the 876 new cases of lung cancer diagnosed during the trial, no reduction in incidence was observed among the men who received alpha-tocopherol (change in incidence as compared with those who did not, -2 95 percent confidence interval, -14 to 12 percent). Unexpectedly, we observed a higher incidence of lung cancer among the men who received beta carotene than among those who did not (change in incidence, 18 95 percent confidence interval, 3 to 36 percent). We found no evidence of an interaction between alpha-tocopherol and beta carotene with respect to the incidence of lung cancer. Fewer cases of prostate cancer were diagnosed among those who received alpha-tocopherol than among those who did not. Beta carotene had little or no effect on the incidence of cancer other than lung cancer. Alpha-tocopherol had no apparent effect on total mortality, although more deaths from hemorrhagic stroke were observed among the men who received this supplement than among those who did not. Total mortality was 8 percent higher (95 percent confidence interval, 1 to 16 percent) among the participants who received beta carotene than among those who did not, primarily because there were more deaths from lung cancer and ischemic heart disease.CONCLUSIONS: We found no reduction in the incidence of lung cancer among male smokers after five to eight years of dietary supplementation with alpha-tocopherol or beta carotene. In fact, this trial raises the possibility that these supplements may actually have harmful as well as beneficial effects.Comment inACP J Club. 1994 Nov-D121(3):74. PMID: 8127329
[PubMed - indexed for MEDLINE]
Free full textPublication TypesMeSH TermsSubstancesGrant SupportFull Text SourcesMedicalMolecular Biology Databases
Supplemental Content
External link. Please review our .Cadmium-induced changes in lipid peroxidation, blood hematology, bi...
- PubMed - NCBI
The NCBI web site requires JavaScript to function.
FormatSummarySummary (text)AbstractAbstract (text)MEDLINEXMLPMID ListApplyChoose DestinationFileClipboardCollectionsE-mailOrderMy BibliographyCitation managerFormatSummary (text)Abstract (text)MEDLINEXMLPMID ListCSVCreate File1 selected item: FormatSummarySummary (text)AbstractAbstract (text)MEDLINEXMLPMID ListMeSH and Other DataE-mailSubjectAdditional textE-mailAdd to ClipboardAdd to CollectionsOrder articlesAdd to My BibliographyGenerate a file for use with external citation management software.Create File
):1563-71.Cadmium-induced changes in lipid peroxidation, blood hematology, biochemical parameters and semen quality of male rats: protective role of vitamin E and beta-carotene.1, , , .1Department of Environmental Studies, Institute of Graduate Studies and Research, University of Alexandria, 163, Horreya Avenue, P.O. Box 832, Alexandria 21526, Egypt. AbstractCadmium is a well-known human carcinogen and a potent nephrotoxin. Lipid peroxidation is involved in cadmium-related toxicity. Vitamin E and beta-carotene are effective antioxidants and free radical scavengers. Therefore, the present study was carried out to investigate the potential protective effects of vitamin E and beta-carotene alone or in combination against cadmium (Cd) toxicity. Cadmium chloride (CdCl2, 5 mg/kg BW, 1/15 LD50), vitamin E (100 mg/kg BW), beta-carotene (10 mg/kg BW), and vitamin E with beta-carotene (100 + 10 mg/kg BW, respectively) were orally administered by gavage alone or in combination. The tested doses were given to rats every other day (15 times). Results obtained showed that CdCl2 significantly (P & 0.05) induced free radicals in plasma, liver and brain. The activities of glutathione S-transferase (GST) (plasma and liver), alkaline phosphatase (AlP) (plasma and liver), aspartate aminotransferase (AST), alanine aminotransferase (ALT) (liver) and acetylcholinesterase (AChE) (plasma and brain) were significantly (P & 0.05) decreased due to CdCl2 administration, whereas, the activities of AST and ALT were increased in plasma. Treatment with CdCl2 caused a significant (P & 0.05) increase in glucose, urea, creatinine and bilirubin in plasma. On the other hand, results showed that CdCl2 significantly (P & 0.05) decreased plasma total protein (TP), albumin (A), blood hemoglobin (Hb), total erythrocytic count (TEC) and packed cell volume (PCV), while total leukocyte count (TLC) increased. Treatment with CdCl2 caused a significant (P & 0.05) decrease in sperm concentration, motility (%), weight of testes and epididymis, and increase in dead and abnormal sperm. Results demonstrated the beneficial influences of vitamin E, -carotene alone and/or in combination in reducing the harmful effects of CdCl2.Copyright 2004 Elsevier Ltd.PMID:
[PubMed - indexed for MEDLINE]
MeSH TermsSubstancesFull Text SourcesOther Literature SourcesMedicalMolecular Biology Databases
Supplemental Content
External link. Please review our .