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VITAMINE B

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La vitamine B12

La vitamine B9 (folate) La vitamine B6. La vitamine B3 (niacine) La vitamine B2 (riboflavine) La vitamine B1 (thiamine) WIKIPEDIA – Vitamin B. Take a short survey and help us improve Wikipedia Thanks for the feedback!

WIKIPEDIA – Vitamin B.

We are using it to make Wikipedia even better! Sources[edit] The B12 vitamin is not abundantly available from plant products,[10] making B12 deficiency a legitimate concern for vegans. Manufacturers of plant-based foods will sometimes report B12 content, leading to confusion about what sources yield B12. A popular way of increasing one's vitamin B intake is through the use of dietary supplements.

Because they are soluble in water, excess B vitamins are generally readily excreted, although individual absorption, use and metabolism may vary.[12] The elderly and athletes may need to supplement their intake of B12 and other B vitamins due to problems in absorption and increased needs for energy production. List of B vitamins[edit] Molecular functions[edit] Deficiencies[edit] Several named vitamin deficiency diseases may result from the lack of sufficient B vitamins.

Side effects[edit] WIKIPEDIA – Vitamine B. Ces vitamines B sont nécessaires pour le bon maintien de la peau et du système immunitaire, du système nerveux, et du renouvellement cellulaire, en particulier celui des cellules sanguines.

WIKIPEDIA – Vitamine B.

Les besoins en vitamines B sont généralement couverts, pour la plupart des individus, par une alimentation variée (fruits et légumes, viandes et produits laitiers...) en quantité suffisante. Historique[modifier | modifier le code] La nomenclature des vitamines B ne peut être comprise que dans son développement historique[1]. En 1915, Elmer Mccollum (en) (1879-1967) et Marguerite Davis (en) (1887-1967) découvrent que les jeunes rats ont besoin pour leur croissance de deux facteurs, l'un soluble dans la graisse qu'ils appellent facteur A et l'autre dans l'eau ou facteur B.

Des recherches ultérieures montrent que le facteur B comprend au moins deux composés, l'un sensible à la chaleur dit B1 (plus tard reconnu comme vitamine contre le béri-béri), l'autre plus stable dit B2. On trouve dans ce facteur B2[1]: THE JOURNAL OF NUTRITION 25/03/1943 The B vitamins in honey. Cancer Management and Research - 2018 - Dietary vitamin B intake and the risk of esophageal cancer: a meta-analysis.

Résumé traduit : Ces résultats confirment que la vitamine B peut avoir une influence sur la cancérogenèse de l'œsophage. La vitamine B1, B3, B6, B9 a montré une diminution du risque d'EC et la vitamine B12 a montré un risque accru de CE. – guatemalt

Faculdade Estácio de Sá de Goiás - 2019 - VITAMINA B12 (COBALAMINA): ASPECTOS CLÍNICOS DE SUA DEFICIÊNCIA. Yara Lúcia Marques Maia, Michele Gomes da Silva, Xisto Sena Passos Resumo Introdução: A deficiência de vitamina B12 (cobalamina) ocorre por diferentes fatores: déficit nutricional, erros inatos ou adquiridos nas vias de absorção e defeitos no transporte ou nas vias metabólicas.

Faculdade Estácio de Sá de Goiás - 2019 - VITAMINA B12 (COBALAMINA): ASPECTOS CLÍNICOS DE SUA DEFICIÊNCIA

A maior prevalência é a má absorção. Objetivo: Descrever as diferentes causas de deficiência de vitamina B12 e prejuízos causados ao organismo de humanos, apresentando as principais formas de tratamento. Métodos: Revisão da literatura sobre aspectos clínicos da deficiência de vitamina B12. ABUNDANCE AND HEALTH - Le guide complet des vitamines B. Nutrients 2018, 10(3), 277; Lower Vitamin D Status Is Associated with an Increased Risk of Ischemic Stroke: A Systematic Review and Meta-Analysis. American Heart Association - 2018 - Relationship Between Dietary Vitamin D and Deaths From Stroke and Coronary Heart Disease. PLOS 05/09/17 High prevalence of thiamine (vitamin B1) deficiency in early childhood among a nationally representative sample of Cambodian women of childbearing age and their children. Abstract Background Thiamine deficiency is thought to be an issue in Cambodia and throughout Southeast Asia due to frequent clinical reports of infantile beriberi.

PLOS 05/09/17 High prevalence of thiamine (vitamin B1) deficiency in early childhood among a nationally representative sample of Cambodian women of childbearing age and their children

However the extent of this public health issue is currently unknown due to a lack of population-representative data. PLOS 15/12/17 Dietary sources and intakes of folates and vitamin B12 in the Spanish population: Findings from the ANIBES study. Abstract Background Folates and vitamin B12 are key nutrients in one-carbon metabolism and related diseases.

PLOS 15/12/17 Dietary sources and intakes of folates and vitamin B12 in the Spanish population: Findings from the ANIBES study

Updated and plausible information on population intakes and their major dietary sources is scarce and urgently needed in Spain in order to increase the knowledge that can lead as previous step to prevention by fortification and supplementation policies. Aims. PARLEMENT EUROPEEN - Réponse à question P-006375-17 Thiamine deficiency among birds and fish. Around the turn of the millennium, reports started coming in of seabirds from breeding colonies on the Baltic Sea coast dying as a result of paralysis in the breeding season.

PARLEMENT EUROPEEN - Réponse à question P-006375-17 Thiamine deficiency among birds and fish

Some of the species affected include herring gulls, black-backed gulls, teal and shelduck. Fish and molluscs — including salmon, salmon trout, eel and sea mussels — have also been hit hard. Studies suggest that the cause could be a lack of thiamine (vitamin B). Injecting affected birds and fish with thiamine supplements has had a positive effect. Research shows that this thiamine deficiency is affecting large swathes of the northern hemisphere, from the west coast of North America to the Baltic Sea, including the Great Lakes on the US-Canadian border, the Atlantic and Iceland. A link with pollution and/or climate change cannot be ruled out.

WIKIPEDIA – Vitamin B. WIKIPEDIA – Vitamine B. UTAH STATE UNIVERSITY - 1999 - Thèse en ligne :Prevalence and Possible Causes of Vitamin B-6 Deficiency Among Women in the Philippines. Food and Nutrition Bulletin, vol. 29, no. 2 (supplement) © 2008, Causes of vitamin B12 and folate deficiency. THE JOURNAL OF NUTRITION 25/03/1943 The B vitamins in honey.

OMS - 2008 - Conclusions of a WHO Technical Consultation on folate and vitamin B12 deficiencies. PROFESSIONSANTE_CA - NOV 2011 - Tout sur la vitamine B12! CERIN 20/07/15 La carence en vitamine B12 est associée à l’absentéisme scolaire et au redoublement. M-C.

CERIN 20/07/15 La carence en vitamine B12 est associée à l’absentéisme scolaire et au redoublement

Duong, M. Mora-Plazas, C. Marin et al. (2015) Vitamin B-12 deficiency in children is associated with grade repetition and school absenteeism, independent of folate, iron, zinc, or vitamin A status biomarkers, Journal of Nutrition ; 145(7):1541-8. Trois mille cent cinquante-six enfants âgés de 5 à 12 ans scolarisés dans des écoles publiques de Bogota (Colombie) ont été inclus dans l’étude. Tous appartenaient à des familles aux revenus faibles ou moyens.

La ferritine, l’hémoglobine, le zinc, la vitamine A, la vitamine B12 et les folates érythrocytaires, ainsi que le volume globulaire moyen (rendant compte de la taille des globules rouges) ont été mesurés pour l’ensemble des sujets à partir d’échantillons sanguins prélevés en début d’année. Le risque de redoublement était de 4,9% au sein de la cohorte. Après ajustement, le taux d’absentéisme, également corrélé au statut en vitamine B12, était 1,89 fois plus élevé pour les enfants déficients. . *