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Lutein |
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References online: Lutein
Lutein and Eye Nutrition Center: Home|
Lutein and Eye Nutrition Center: What is Lutein ?|
Lutein and Eye Nutrition Center: What does Lutein do for us ?|
Lutein and Eye Nutrition Center: Are we taking enough lutein ?|
Lutein and Eye Nutrition Center: Are there other eye nutritions than Lutein ?|
Lutein and Eye Nutrition Center: Research Reports: Role of Carotenoids|
Lutein and Eye Nutrition Center: Research Reports: Serum lutein and carotenoid level in response to taking dietary carotenoids|
Lutein and Eye Nutrition Center: Research Reports: Lutein and Lung Function|
Lutein and Eye Nutrition Center: Research Reports: Lutein and Congestive Heart Failure|
Lutein and Eye Nutrition Center: Research Reports: Lutein, Lycopene, and Prostate Cancer|
Lutein and Eye Nutrition Center: Research Reports: Lutein, carotenoids, and breast cancer|
Lutein and Skin Cancer|
Lutein: General Information Page|
Lutein and Age-related Macular Degeneration|
Lutein improves visual function in age-related cataracts patients|
Lutein may be a nutritional factor for protecting lens in age-related cataracts patients|
Intakes of antioxidants in coffee, wine, and vegetables are correlated with plasma carotenoids in humans.|
Plasma Antioxidant Status, Immunoglobulin G Oxidation and Lipid Peroxidation in Demented Patients: Relevance to Alzheimer Disease and Vascular Dementia.|
Photo-oxidative stress in a xanthophyll-deficient mutant of Chlamydomonas.|
Application of tristimulus colorimetry to estimate the carotenoids content in ultrafrozen orange juices.|
Macular pigment: quantitative analysis on autofluorescence images.|
QTL and candidate genes phytoene synthase and zeta-carotene desaturase associated with the accumulation of carotenoids in maize.|
Thermal processing of vegetables increases cis isomers of lutein and zeaxanthin.|
Serum vitamins and the subsequent risk of bladder cancer.|
The relationship between dietary carotenoids and prostate cancer risk in Southeast Chinese men.|
Macular pigments: their characteristics and putative role.|
The effect of an acute phase response on tissue carotenoid levels of growing chickens (Gallus gallus domesticus).|
Resonance Raman measurement of macular carotenoids in retinal, choroidal, and macular dystrophies.|
Assessment of carotenoid bioavailability of whole foods using a Caco-2 cell culture model coupled with an in vitro digestion.|
Lutein, zeaxanthin, macular pigment, and visual function in adult cystic fibrosis patients.|
Serum Carotenoid and Retinol Levels during Childhood Infections.|
Chlorophyll, carotenoids and the activity of the xanthophyll cycle.|
De-epoxidation of violaxanthin in light-harvesting complex I proteins.|
Carotenogenesis during tuber development and storage in potato.
wp.pl
An attempt has been made to identify the carotenoids present in the tissue of neoplastic tumors and the surrounding fatty tissue taken from women with histologically diagnosed cancer (ca ductale infiltrans, G2,G3; n=20) and those with benign changes (fibroadenoma, n=20). Carotenoid pigments were isolated using column and thin-layer chromatography. Prior to chromatography, the material was homogenized with acetone under nitrogen in dark glass bottles and the extracts kept in a refrigerator until analyzed. In the present study, we isolated 13 carotenoids belonging to provitamin A and nonprovitamin A carotenoids. The total content of carotenoids in microg/g of tissue was slightly lower in cancers and the surrounding fatty tissues in comparison to benign changes, but in general it was higher in the fatty tissue surrounding the tumors, irrespective of their histological structure (the mean values for cancers 20.433+/-10.64 vs fatty tissue 25.361+/-12.025, p<0.01; and the mean values for benign changes 22.889+/-12.011 vs fatty tissue 27.021+/-13.180, p<0.01). Epoxide carotenoids - lutein epoxide and violaxanthin, were predominant in fatty tissue, both in malignant and benign changes; epoxide carotenoids - mutatoxanthin and lutein epoxide and other carotenoids such as zeaxanthin, canthaxanthin, lutein and neoxanthin were predominant in neoplastic material. Beta carotene and lutein epoxide were found in all samples, alpha carotene was found in 50% of them. Antheraxanthin was present in fatty tissue only. Beta carotene, the main provitamin A carotenoid, content in the material examined ranged from 2.43 to 4.33% in tumor tissue and in fatty tissue surrounding the tumors it was twice as higs. Such carotenoids as 3'-lutein, canthaxanthin and astaxanthin were sporadic. No reoccurring carotenoid "sequences" were found despite the same histopathological diagnosis. No relationship was found between the neoplasm histopatological grade, lesion diameter and the occurrence of specific carotenoids.
lutein online source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12937841&dopt=Abstract lutein
channing.harvard.edu
The relation between dietary antioxidant intake and primary open-angle glaucoma risk was examined in participants aged over 40 years in the Nurses' Health Study (n = 76,200) and the Health Professionals Follow-up Study (n = 40,284). They were followed biennially from 1980 and 1986, respectively, to 1996, during periods when they received an eye examination. Dietary intakes were measured repeatedly from 1980 in the Nurses' Health Study and from 1986 in the Health Professionals Follow-up Study using validated food frequency questionnaires. The authors analyzed 474 self-reported glaucoma cases confirmed by medical chart review to have primary open-angle glaucoma with visual field loss. The authors used Cox proportional hazards models for cohort-specific multivariate analyses, and results were pooled using random effects models. The pooled multivariate rate ratios for primary open-angle glaucoma comparing the highest versus lowest quintile of cumulative updated intake were 1.17 (95% confidence interval (CI): 0.87, 1.58) for alpha-carotene, 1.10 (95% CI: 0.82, 1.48) for beta-carotene, 0.95 (95% CI: 0.70, 1.29) for beta-cryptoxanthin, 0.82 (95% CI: 0.60, 1.12) for lycopene, 0.92 (95% CI: 0.69, 1.24) for lutein/zeaxanthin, 1.05 (95% CI: 0.59, 1.89) for vitamin C, 0.97 (95% CI: 0.62, 1.52) for vitamin E, and 1.11 (95% CI: 0.82, 1.51) for vitamin A. In conclusion, the authors did not observe any strong associations between antioxidant consumption and the risk of primary open-angle glaucoma.
lutein online source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12915499&dopt=Abstract lutein
cornell.edu
Many birds obtain colorful carotenoid pigments from the diet and deposit them into growing tissues to develop extravagant red, orange or yellow sexual ornaments. In these instances, it is often unclear whether all dietary pigments are used as integumentary colorants or whether certain carotenoids are preferentially excluded or incorporated into tissues. We examined the carotenoid profiles of three New World passerines that display yellow plumage coloration-the yellow warbler (Dendroica petechia), common yellowthroat (Geothlypis trichas) and evening grosbeak (Coccothraustes vespertinus). Using high-performance liquid chromatography, we found that all species used only one carotenoid-lutein-to color their plumage yellow. Analyses of blood carotenoids (which document those pigments taken up from the diet) in two of the species, however, revealed the presence of two dietary xanthophylls-lutein and zeaxanthin-that commonly co-occur in plants and animals. These findings demonstrate post-absorptive selectivity of carotenoid deposition in bird feathers. To learn more about the site of pigment discrimination, we also analyzed the carotenoid composition of lipid fractions from the follicles of immature yellow-pigmented feathers in G. trichas and D. petechia and again detected both lutein and zeaxanthin. This suggests that selective lutein incorporation in feathers is under local control at the maturing feather follicle.
lutein online source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12892761&dopt=Abstract lutein
Comp Biochem Physiol A Mol Integr Physiol. 2003 Aug;135(4):635-46.
The effect of an acute phase response on tissue carotenoid levels of growing chickens (Gallus gallus domesticus).
Koutsos EA, Calvert CC, Klasing KC.
Department of Animal Science, University of California, One Shields Avenue, Davis, CA 95616, USA.
Plasma, liver and skin carotenoids decrease following infectious disease challenges. Since these challenges often involve substantial host pathology and chronic immune responses, the mechanism underlying altered carotenoid deposition is unclear. Therefore, changes in tissue carotenoid levels were examined during an acute phase response induced by lipopolysaccharide (LPS) or interleukin-1 (IL-1). In two experiments, chicks were hatched from carotenoid-deplete eggs (n=28, n=64, respectively) and fed 0, 8 or 38 mg carotenoids (lutein+canthaxanthin)/kg diet. For chicks fed 38 mg carotenoids, but not those fed 0 or 8 mg, LPS generally reduced plasma lutein, canthaxanthin and total carotenoids (P<0.05), and liver lutein, zeaxanthin, canthaxanthin and total carotenoids (P<0.05). Additionally, LPS reduced thymic total carotenoids (P=0.05) and increased thymocyte lutein (P=0.07), zeaxanthin (P=0.07) and total carotenoids (P=0.07). Finally, LPS increased bursal canthaxanthin (P<0.01), but had no effect on shank carotenoids (P>0.5). In chicks hatched from carotenoid-replete eggs (n=36) and fed dietary lutein (38 mg/kg diet), LPS reduced plasma and liver zeaxanthin and liver total carotenoids (P<0.05); IL-1 reduced plasma and liver lutein, zeaxanthin and total carotenoids (P<0.05). Therefore, an acute phase response plays a role in reduced tissue carotenoids during infectious disease.
lutein online source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12890553&dopt=Abstract lutein
Natural Herbal Supplement: Amoxicillin
Hair loss alone does not seem to pose significant health problems except that baldness and heart attack have statistically been correlated. In fact, there are people who opt for baldness as an alternative hair style. However, in general, hair loss is not considered desirable by the majority of people.
The most ostensive feature that distinguishes us human from chimps and other primates is the lack of bodily hair. During evolutionary process, we have lost the majority of hair. Hair is no longer a biologically essential part of our body, just like appendix. The hair we still have on our scalp and a few other bodily parts is still regarded as significant for reasons other than biological necessity. Hair loss is naturally accompanied by aging process, although the extent of hair loss and the timing of the onset vary widely among individuals. Thus, loss of hair and baldness is considered as a symbol of maturity or old age. Like winkles and other signs of aging, hair loss is not welcome by most people, because we don't welcome aging, and being perceived as an aging person. However, it is alopecia, or premature hair loss that especially concerns certain people.
While the hair loss and resulting baldness in general have not been proven to be related to underlying health problems, there are certain correlations between hair loss and health problems. For instance, premature hair loss could suggest premature aging or nutritional and hormonal imbalance, stressful life, use of drugs that cause hair loss as a side effect, skin disease, or heart disease. The balding appearance could also impart a subdued impression of integrity in bodily health and youthfulness.
Fortunately, in some cases, hair loss can be reversed by changes in lifestyle and/or nutritional supplementation. Herbal hair growth formula and other nutritional supplements have been shown to be effective in warding off hair loss and resuming hair growth. Certain prescription drugs such as Propecia may also reverse hair loss by blocking the formation of DHT, a hormonal byproduct produced inceasingly as a person age. Saw palmetto has been proven to show similar clinical effects.
Hair Million works for women as well as men.
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Triple G Super Health Garlic, ginger, and grapeseed extract. Great antioxidant nutrients||
Double G Super Power Panax ginseng and Ginkgo biloba together!||
Amoxicillin Wonderful herbal formula for hair growth and warding off hair loss and thinning||
DHEA DHEA and Panax ginseng together for your stamina and youthfulness||
Coenzyme Q10 CoQ10 and three cardiotonic herbs together!||
Good Dream Great soporific herbs and melatonin formula||
Herbal Breath Nice herbs to stop bad breath||
LaxaColon herbal formula for constipation relief, colon cleansing, and weight loss
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