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Vitamin B12 Supplementation

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22501. Plasma 25-hydroxyvitamin D concentrations in preterm infants receiving oral vitamin D supplements. Full Text available with Trip Pro

Plasma 25-hydroxyvitamin D concentrations in preterm infants receiving oral vitamin D supplements. Plasma 25-hydroxy-cholecalciferol (25-OHD) was measured serially in two groups of preterm infants receiving either 400 IU or 1000 IU oral vitamin D3 daily. All the babies were able to absorb and hydroxylate vitamin D3 adequately by 36 weeks' gestational age. The higher daily supplement had no advantage over the lower dose.

1981 Archives of Disease in Childhood

22502. Modification of chemically induced diabetes in rats by vitamin E. Supplementation minimizes and depletion enhances development of diabetes. Full Text available with Trip Pro

Modification of chemically induced diabetes in rats by vitamin E. Supplementation minimizes and depletion enhances development of diabetes. Administration of the antioxidant vitamin E to rats, prior to administration of either streptozotocin or alloxan, provided protection against the diabetogenic effect of both these agents. This was demonstrated by their response to a glucose load, their pancreatic insulin content and light microscopy findings. In addition, rats whose antioxidant state (...) was depleted, by being maintained on a vitamin E and selenium-deficient diet, demonstrated increased diabetogenic susceptibility to normally nondiabetogenic doses of streptozotocin. These findings provide indirect support for the suggestion that the chemical agents streptozotocin and alloxan may exert their diabetogenic effect by acting as oxidants or free radical producers.

1983 Journal of Clinical Investigation

22503. Patterns of vitamin C intake from food and supplements: survey of an adult population in Alameda County, California. Full Text available with Trip Pro

Patterns of vitamin C intake from food and supplements: survey of an adult population in Alameda County, California. Use of vitamin C in food and pills and its association with health habits and health status were investigated in a random sample of 3,119 adults in Alameda County, California. Vitamin C intakes of nearly 80 per cent of respondents met or exceeded Recommended Daily Dietary Allowances. Fourteen per cent or fewer appeared to have inadequate vitamin C intake. Vitamin C supplements (...) were taken daily by 29 per cent, occasionally by 21 per cent. Most respondents obtained 100 mg or less of vitamin C daily; 2 per cent had more than 2000 mg. Proportionately, more women than men took vitamin C pills daily. Men aged 16 to 44 were the most likely to have neither vitamin C foods nor pills. Persons 45 years and older tended to take vitamin C pills daily, younger persons to take them occasionally. Respondents who did not eat breakfast or who smoked cigarettes had lower vitamin C intakes

1983 American Journal of Public Health

22504. Recurrence rates for neural tube defects and vitamin supplementation Full Text available with Trip Pro

Recurrence rates for neural tube defects and vitamin supplementation 7024545 1981 11 24 2018 11 13 0022-2593 18 4 1981 Aug Journal of medical genetics J. Med. Genet. Recurrence rates for neural tube defects and vitamin supplementation. 249-51 James W H WH eng Clinical Trial Journal Article Research Support, Non-U.S. Gov't England J Med Genet 2985087R 0022-2593 0 Vitamins IM Anencephaly prevention & control Clinical Trials as Topic Female Humans Neural Tube Defects genetics prevention & control (...) Pregnancy Spina Bifida Occulta prevention & control Vitamins therapeutic use 1981 8 1 1981 8 1 0 1 1981 8 1 0 0 ppublish 7024545 PMC1048725 Lancet. 1968 Sep 14;2(7568):623-6 4175169 J Med Genet. 1968 Jun;5(2):81-106 4881170 Br J Prev Soc Med. 1970 Nov;24(4):205-22 4924869 Pediatrics. 1971 Mar;47(3):577-86 4926631 Dev Med Child Neurol. 1972 Oct;14(5):626-39 4578858 J Med Genet. 1973 Sep;10(3):209-34 4590246 Dev Med Child Neurol. 1976 Oct;18(5):643-56 789160 Br Med J. 1978 Jan 14;1(6105):72-3 620202 J Med

1981 Journal of Medical Genetics

22505. Are vitamin A supplements needed during pregnancy? Full Text available with Trip Pro

Are vitamin A supplements needed during pregnancy? 2309476 1990 04 04 2008 11 20 0093-0415 152 1 1990 Jan The Western journal of medicine West. J. Med. Are vitamin A supplements needed during pregnancy? 68 Lammer E E eng Editorial United States West J Med 0410504 0093-0415 11103-57-4 Vitamin A AIM IM Female Humans Pregnancy metabolism Vitamin A administration & dosage adverse effects metabolism 1990 1 1 1990 1 1 0 1 1990 1 1 0 0 ppublish 2309476 PMC1002266

1990 Western Journal of Medicine

22506. Neural tube defect recurrence after 'partial' vitamin supplementation. Full Text available with Trip Pro

Neural tube defect recurrence after 'partial' vitamin supplementation. A total of 227 mothers enrolled for periconceptional multivitamin supplementation because of previous neural tube defect (NTD) births took vitamins for less than the recommended minimum period (at least 28 days before conception until two menstrual periods have been missed). Of 213 examined infants/fetuses born to these partially supplemented mothers, two had NTD, one of whom followed four previous NTDs. The observed NTD (...) recurrence rate is similar to that observed in fully supplemented mothers. A further 14 mothers started supplements before the second missed period but after the normal time of neural tube closure. Three of their offspring had NTD. The significance of this apparently high recurrence rate is discussed.

1989 Journal of Medical Genetics

22507. Determinants of community-based coverage: periodic vitamin A supplementation. Aceh Study Group. Full Text available with Trip Pro

Determinants of community-based coverage: periodic vitamin A supplementation. Aceh Study Group. Factors related to preschool child receipt of vitamin A during the first year of a semi-annual vitamin A capsule delivery program were investigated in 229 villages in Aceh, Indonesia. Coverage was higher in villages which were more rural and less economically developed. Highest performance was achieved by village distributors who represented the local status quo in this rural area (farmers, or non

1989 American Journal of Public Health

22508. Who should take vitamin supplements? Full Text available with Trip Pro

Who should take vitamin supplements? 2242158 1990 09 28 2018 11 13 0959-8138 301 6744 1990 Jul 21 BMJ (Clinical research ed.) BMJ Who should take vitamin supplements? 135-6 Truswell S S University of Sydney, New South Wales, Australia. eng Journal Article Review England BMJ 8900488 0959-8138 0 Vitamins AIM IM BMJ 1990 Aug 18-25;301(6748):354 Child Diet Female Health Status Humans Male Pregnancy Vitamins therapeutic use 27 1990 7 21 1990 7 21 0 1 1990 7 21 0 0 ppublish 2242158 PMC1663533 Lancet

1990 BMJ : British Medical Journal

22509. Supplemental vitamin A prevents the tumor-induced defect in wound healing. Full Text available with Trip Pro

Supplemental vitamin A prevents the tumor-induced defect in wound healing. To test our hypothesis that supplemental vitamin A would mitigate the impaired healing that occurs in tumor-bearing animals, six groups of C3H mice, eight per group, eating a standard commercial mouse chow ad libitum that supports normal growth, reproduction, and longevity were innoculated with 200,000 C3HBA cells. When tumors measured approximately 6 mm in diameter, the mice were anesthesized and wounded (dorsal skin (...) incisions and subcutaneous polyvinyl alcohol sponges). Twenty-four hours later, two groups (one continued on the chow and the other started on the chow supplemented with 150,000 IU vitamin A/kg chow) underwent local tumor irradiation; two groups, one ingesting the chow, the other the vitamin A supplemented chow, were started on cyclophosphamide therapy; two groups, one ingesting the chow, the other the vitamin A supplemented chow, received neither local tumor irradiation nor cyclophosphamide therapy

1990 Annals of Surgery

22510. Ascorbic acid and total vitamin C concentrations in plasma, gastric juice, and gastrointestinal mucosa: effects of gastritis and oral supplementation. Full Text available with Trip Pro

Ascorbic acid and total vitamin C concentrations in plasma, gastric juice, and gastrointestinal mucosa: effects of gastritis and oral supplementation. Epidemiological evidence suggests that high dietary ascorbic acid reduces gastric cancer risk. It may do this by either reducing N-nitroso compound formation in gastric juice, or by scavenging reactive oxygen species in gastric mucosa. The aim of this study was to discover if potential ascorbic acid protection might be increased (...) by supplementation. Thirty two patients were supplemented with ascorbic acid, 500 mg twice daily for two weeks. Gastric juice, plasma, and upper gastrointestinal biopsy ascorbate concentrations were measured and compared with values in 48 unsupplemented patients. It was found that ascorbic acid and total vitamin C concentrations were considerably higher in biopsy specimens from oesophagus, body, antrum, duodenum, and rectum, compared with values in plasma or gastric juice. Plasma and mucosal concentrations were

1996 Gut

22511. Vitamin A capsule supplementation in Malawi villages: missed opportunities and possible interventions. Full Text available with Trip Pro

Vitamin A capsule supplementation in Malawi villages: missed opportunities and possible interventions. A population-based survey was used to assess childhood and maternal vitamin A capsule coverage in Malawi and to investigate missed opportunities for capsule distribution. Overall, 9.3% of children had received vitamin A supplementation in the previous 6 months. Missed opportunities for receiving vitamin A were high in younger children. Fifty-five percent of mothers were covered in 8 villages (...) served by volunteers and 23% in the 58 villages without volunteers. Existing strategies need to be redesigned and new strategies defined. For instance, mothers could receive supplementation during infant BCG vaccination, and children could receive initial supplementation during measles vaccination. Village health volunteers could be used to target children over 2 years of age.

1995 American Journal of Public Health

22512. Vitamin A supplementation in developing countries. Full Text available with Trip Pro

Vitamin A supplementation in developing countries. 7492178 1996 01 02 2018 11 13 1468-2044 73 3 1995 Sep Archives of disease in childhood Arch. Dis. Child. Vitamin A supplementation in developing countries. 275 Ray J J eng Comment Letter England Arch Dis Child 0372434 0003-9888 11103-57-4 Vitamin A AIM IM Arch Dis Child. 1995 Feb;72(2):106-7 7702368 Cranial Sutures drug effects Developing Countries Humans Vitamin A administration & dosage adverse effects 1995 9 1 1995 9 1 0 1 1995 9 1 0 0

1995 Archives of Disease in Childhood

22513. Vitamin A supplementation and morbidity in children born to HIV-infected women. Full Text available with Trip Pro

Vitamin A supplementation and morbidity in children born to HIV-infected women. 7625492 1995 08 30 2018 11 13 0090-0036 85 8 Pt 1 1995 Aug American journal of public health Am J Public Health Vitamin A supplementation and morbidity in children born to HIV-infected women. 1049-51 Martorell R R Ramakrishnan U U eng Comment Editorial United States Am J Public Health 1254074 0090-0036 11103-57-4 Vitamin A AIM IM X Am J Public Health. 1995 Aug;85(8 Pt 1):1076-81 7625499 Diarrhea, Infantile etiology (...) prevention & control Female HIV Infections complications drug therapy transmission Humans Infant, Newborn Infectious Disease Transmission, Vertical Respiratory Tract Infections etiology prevention & control Vitamin A therapeutic use 1995 8 1 1995 8 1 0 1 1995 8 1 0 0 ppublish 7625492 PMC1615823 Br Med J (Clin Res Ed). 1987 Jan 31;294(6567):294-6 3101849 Lancet. 1995 May 27;345(8961):1330-2 7752754 N Engl J Med. 1990 Jul 19;323(3):160-4 2194128 J Pediatr. 1987 Aug;111(2):269-77 3302193 Am J Clin Nutr

1995 American Journal of Public Health

22514. The timing of high-dose vitamin A supplementation to children. Full Text available with Trip Pro

The timing of high-dose vitamin A supplementation to children. 7661223 1995 10 04 2018 11 13 0090-0036 85 9 1995 Sep American journal of public health Am J Public Health The timing of high-dose vitamin A supplementation to children. 1200-1 Underwood B A BA eng Comment Editorial United States Am J Public Health 1254074 0090-0036 11103-57-4 Vitamin A AIM IM Am J Public Health. 1995 Sep;85(9):1246-51 7661232 Child Welfare Child, Preschool Drug Administration Schedule Humans Time Factors Vitamin (...) A therapeutic use Vitamin A Deficiency complications drug therapy 1995 9 1 1995 9 1 0 1 1995 9 1 0 0 ppublish 7661223 PMC1615586 BMJ. 1992 Jan 25;304(6821):207-10 1739794 Lancet. 1991 Jul 13;338(8759):67-71 1676467 Lancet. 1993 Jul 3;342(8862):7-12 8100345 J Nutr. 1993 Aug;123(8):1363-9 8336206 Am J Clin Nutr. 1993 Aug;58(2):192-7 8338047 J Nutr. 1994 Aug;124(8):1172-8 8064367 Am J Clin Nutr. 1994 Sep;60(3):388-92 8074070 Am J Clin Nutr. 1995 Apr;61(4):853-9 7702031 Am J Public Health. 1995 Sep;85(9):1246

1995 American Journal of Public Health

22515. Measuring the effects of vitamin A supplementation. Full Text available with Trip Pro

Measuring the effects of vitamin A supplementation. 8427347 1993 03 04 2018 11 13 0090-0036 83 2 1993 Feb American journal of public health Am J Public Health Measuring the effects of vitamin A supplementation. 288-9 Stoltzfus R J RJ Habicht J P JP eng Comment Letter United States Am J Public Health 1254074 0090-0036 11103-57-4 Vitamin A AIM IM Am J Public Health. 1991 Dec;81(12):1654-6 1746667 Child Humans Indonesia epidemiology Morbidity Mortality Vitamin A therapeutic use 1993 2 1 1993 2 1 0

1993 American Journal of Public Health

22516. Vitamin C and gastric cancer: supplements for some or fruit for all? Full Text available with Trip Pro

Vitamin C and gastric cancer: supplements for some or fruit for all? 8949634 1997 01 07 2018 11 30 0017-5749 39 3 1996 Sep Gut Gut Vitamin C and gastric cancer: supplements for some or fruit for all? 345-7 O'Toole P P Department of Medicine, University of Liverpool, Merseyside. Lombard M M eng Journal Article Review England Gut 2985108R 0017-5749 0 Nitroso Compounds 0 Reactive Oxygen Species PQ6CK8PD0R Ascorbic Acid AIM IM Ascorbic Acid pharmacology therapeutic use Gastric Mucosa metabolism

1996 Gut

22517. Effect of abnormal liver function on vitamin E status and supplementation in adults with cystic fibrosis. Full Text available with Trip Pro

Effect of abnormal liver function on vitamin E status and supplementation in adults with cystic fibrosis. Patients with cystic fibrosis tend to have reduced serum concentrations of vitamin E and are therefore at risk of developing the neurological complications associated with vitamin E deficiency. Improved survival in cystic fibrosis has resulted in an increasing number of older patients who may develop hepatobiliary complications which may further impair the absorption of vitamin E (...) . In this study the vitamin E status and results of supplementation with oral vitamin E were compared in adult patients with and without evidence of liver involvement as assessed by routine liver function tests. The serum vitamin E concentrations were reduced below normal in 24 of 25 patients. The mean serum vitamin E concentration was significantly lower (p less than 0.05) in those patients with abnormal liver function. When vitamin E status was assessed as the serum vitamin E/cholesterol ratio, however

1986 Gut

22518. The effect of vitamin A supplementation on the growth of preschool children in the Sudan. Full Text available with Trip Pro

The effect of vitamin A supplementation on the growth of preschool children in the Sudan. This study assessed the effect of vitamin A supplementation at 6-month intervals on child growth.Sudanese children (n = 28,740) 6 to 72 months of age were weighed and measured at baseline and at each of three follow-up visits.Periodic vitamin A supplementation had no effect on the rate of weight or height gain in the total population or on the incidence of wasting, stunting, or wasting and stunting among

1997 American Journal of Public Health

22519. Potential health economic benefits of vitamin supplementation. Full Text available with Trip Pro

Potential health economic benefits of vitamin supplementation. This study used published relative risk estimates for birth defects, premature birth, and coronary heart disease associated with vitamin intake to project potential annual cost reductions in U.S. hospitalization charges. Epidemiological and intervention studies with relative risk estimates were identified via MEDLINE. Preventable fraction estimates were derived from data on the percentage of at-risk Americans with daily vitamin (...) %, respectively. For the conditions studied, nearly $20 billion in hospital charges were potentially avoidable with daily use of folic acid and zinc-containing multivitamins by all women of childbearing age and daily vitamin E supplementation by those over 50.

1997 Western Journal of Medicine

22520. Vitamin D deficiency: time for action : Evidence supports routine supplementation for elderly people and others at risk  Full Text available with Trip Pro

Vitamin D deficiency: time for action : Evidence supports routine supplementation for elderly people and others at risk  9831568 1999 01 07 2018 11 13 0959-8138 317 7171 1998 Nov 28 BMJ (Clinical research ed.) BMJ Vitamin D deficiency: time for action. Evidence supports routine supplementation for elderly people and others at risk. 1466-7 Compston J E JE eng Editorial England BMJ 8900488 0959-8138 1406-16-2 Vitamin D AIM IM BMJ. 1999 May 8;318(7193):1284-5; author reply 1285 10391703 BMJ (...) . 1999 May 8;318(7193):1284; author reply 1285 10231270 BMJ. 1999 May 8;318(7193):1285 10391704 Aged Humans Middle Aged Risk Factors Vitamin D administration & dosage Vitamin D Deficiency complications therapy 1998 11 30 1998 11 30 0 1 1998 11 30 0 0 ppublish 9831568 PMC1114332 Am J Clin Nutr. 1994 Oct;60(4):619-30 8092101 BMJ. 1994 Apr 23;308(6936):1081-2 8173430 Ann Intern Med. 1996 Feb 15;124(4):400-6 8554248 N Engl J Med. 1997 Sep 4;337(10):670-6 9278463 Am J Clin Nutr. 1997 Oct;66(4):929-36

1998 BMJ : British Medical Journal

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