Results 21 to 30 of about 181,889 (303)

Vitamin B-12 deficiency stimulates osteoclastogenesis via increased homocysteine and methylmalonic acid [PDF]

, 2009
The risk of nutrient deficiencies increases with age in our modern Western society, and vitamin B(12) deficiency is especially prevalent in the elderly and causes increased homocysteine (Hcy) and methylmalonic acid (MMA) levels.
Bravenboer, N., Vaes, Bart L T, Vaes, B.L.T., Everts, V., Wilma T. Steegenga, Bravenboer, Nathalie, Steegenga, W.T., Lute, Carolien, Carolien Lute, de Groot, L.C.P.G.M., Müller, M.R., Henk J. Blom, de Groot, C.P.G.M., Muller, M., Dhonukshe-Rutten, R.A.M., de Groot, Lisette C P G M, Dhonukshe-Rutten, R.A., Bart L. T. Vaes, Teun J. de Vries, Blom, Henk J, Nathalie Bravenboer, Groot, L.C.P.G.M. de, de Vries, Teun J, Müller, Michael, Everts, Vincent, Rosalie A. Dhonukshe-Rutten, Michael Müller, de Vries, T.J., Lisette C. P. G. M. de Groot, Dhonukshe-Rutten, Rosalie A, Steegenga, Wilma T, Groot, C.P.G.M., de, Lute, C., Vries, T. J., Blom, H.J., Everts, V, Vries, T.J., de, Vincent Everts   +37 more
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A randomised controlled trial investigating the effect of vitamin B12 supplementation on neurological function in healthy older people: the Older People and Enhanced Neurological function (OPEN) study protocol [ISRCTN54195799]. [PDF]

, 2011
BACKGROUND: Vitamin B12 deficiency is common in older people and the prevalence increases with age. Vitamin B12 deficiency may present as macrocytic anaemia, subacute combined degeneration of the spinal cord, or as neuropathy, but is often asymptomatic ...
Allen, Elizabeth, Kerry Mills, Whyte, K, Fletcher, Astrid E, Elbourne, Diana, Richards, Marcus, Ken Whyte, Mills, Kerry, Robert Clarke, Richards, M, Letley, Louise, Dangour, Alan D, Elbourne, D, Mills, K, Ricardo Uauy, Whyte, Ken, Louise Letley, Dangour, AD, Fletcher, AE, Diana Elbourne, Fasey, Nicky, Uauy, Ricardo, Alan D Dangour, Uauy, R, Astrid E Fletcher, Marcus Richards, Clarke, Robert, Clarke, R, Nicky Fasey, Elizabeth Allen, Fasey, N, Allen, E, Letley, L   +32 more
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Blood levels of vitamin C, carotenoids and retinol are inversely associated with cataract in a north Indian population [PDF]

, 2008
PURPOSE: To examine the association of blood antioxidants with cataract. METHODS: Cross-sectional study of people aged >or=50 years identified from a household enumeration of 11 randomly sampled villages in North India.
Price, Gill M., Young, Ian S, Gupta, Sanjeev K., Murthy, Gudlavalleti V. S., Murthy, Gudlavalleti VS, Chakravarthy, Usha, Maraini, Giovanni, Fletcher, Astrid E, John, Neena, Gupta, Sanjeev K, Dherani, Mukesh, Camparini, Monica, Price, Gill M, Young, Ian S., Fletcher, Astrid E.   +14 more
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Methemoglobinemia and acute hemolysis induced by high intravenous doses of vitamin C in a COVID-19 patient with unrecognized glucose-6- phosphate-dehydrogenase deficiency

Geriatric Care, 2022
In glucose-6-phosphate-dehydrogenase deficiency (favism), exposure to oxidant agents can trigger hemolytic crises. The intravenous administration of very high doses of vitamin C was proposed as a treatment for severe coronavirus disease 2019 (COVID-19 ...
Filippo Luca Fimognari, Valentina Bambara, Paola Scarpino, Olga Cuccurullo, Roberto Ricchio, Claudio Iorio, Massimo Rizzo   +6 more
doaj   +1 more source

A genetic validation study reveals a role of vitamin D metabolism in the response to interferon-alfa-based therapy of chronic hepatitis C [PDF]

, 2012
Background: To perform a comprehensive study on the relationship between vitamin D metabolism and the response to interferon-α-based therapy of chronic hepatitis C.
Jörg Bojunga, Raffaele Malinverni, Gerlach, Tilman J., Gerlach, Tilman J, Tilman J Gerlach, Swiss Hepatitis C Cohort Study Group,, Berg, T., Kutalik, Z., Stephanie Bibert, Christian M Lange, Geier, Andreas, Dufour, Jean-François Jacques, Thomas Berg, Malinverni, Raffaele, Regenass, S., Burgisser, Philippe, Regenass, Stephan, Badenhoop, Klaus, Bojunga, Jörg, Lange, Christian M, Dufour, J. F., Stephan Regenass, Gerlach, Tilman Joern, Swiss Hepatitis C Cohort Study Group, Bochud, P. Y., Dufour, Jean-Francois, Bojunga, J., Andreas Geier, Stefan Zeuzem, Negro, F., Cerny, A., Zoltan Kutalik, Lange, Christian, Pierre-Yves Bochud, Sarrazin, C., Tobias Müller, Sarrazin, Christoph, Lange, C. M., Cerny, Andreas, Kutalik, Zoltán, Bibert, S., Malinverni, R., Moradpour, Darius, Christoph Sarrazin, Burgisser, P., Gerlach, T. J., Moradpour, D., Bibert, Stephanie, Klaus Badenhoop, Zeuzem, S., Negro, Francesco, Müller, Tobias, Badenhoop, K., Andreas Cerny, Bochud, Pierre-Yves, Geier, A., Heim, M. H., Muller, T., Francesco Negro, Berg, Thomas, Markus H Heim, Heim, Markus H., Darius Moradpour, Jean-Francois Dufour, Philippe Burgisser, Heim, Markus H, Zeuzem, Stefan   +66 more
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Vitamin C Deficiency in an Anticoagulated Patient [PDF]

Journal of General Internal Medicine, 2012
A 64-year-old woman presented with a hemorrhagic perifollicular rash on her legs while taking warfarin. After biopsy, vitamin C deficiency was suggested as the diagnosis, which ascorbic acid assays later confirmed. Clinical resolution of the rash followed supplementation with vitamin C.
George M, Yousef, Lynne J, Goebel
openaire   +2 more sources

Association Between Vitamin Deficiencies and Ophthalmological Conditions

Clinical Ophthalmology, 2023
Austin Pereira,1 R Damilola Adekunle,2,* Michele Zaman,3,* Michael J Wan1 1University of Toronto Department of Ophthalmology & Vision Sciences, Toronto, Ontario, Canada; 2Faculty of Medicine, Memorial University of Newfoundland, St.
Pereira A, Adekunle RD, Zaman M, Wan MJ
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Rapid screening of critically ill patients for low plasma vitamin C concentrations using a point-of-care oxidation–reduction potential measurement

Intensive Care Medicine Experimental, 2021
Background Hypovitaminosis C and vitamin C deficiency are common in critically ill patients and associated with organ dysfunction. Low vitamin C status often goes unnoticed because determination is challenging.
Sander Rozemeijer, Bob Smit, Paul W. G. Elbers, Armand R. J. Girbes, Heleen M. Oudemans-van Straaten, Angelique M. E. de Man   +5 more
doaj   +1 more source

Vitamin C and D Deficiency in Urban America: A Case Report

Clinical Practice and Cases in Emergency Medicine, 2023
Introduction: Scurvy is caused by vitamin C deficiency and manifests with a variety of symptoms including generalized fatigue, apathy, anemia, myalgias, easy bruising, and poor wound healing.
Alyssa A. Lombardi, Maura Sammon, Kraftin E. Schreyer   +2 more
doaj   +1 more source

Association between MTHFR 677C>T polymorphism and vitamin B12 deficiency: A case-control study [PDF]

Journal of Medical Biochemistry, 2018
Background: Vitamin B12 (cobalamin) deficiency is a prevalent worldwide health concern. Several factors are associated with vitamin B12 deficiency including lifestyle, genetic predisposition, and malfunctions in the absorption and transport of vitamin ...
Al-Batayneh Khalid M., al Salim Zoubi Mazhar, Shehab Murad, Al-Trad Bahaa, Bodoor Khaldon, al Khateeb Wesam, Aljabali Alaa A.A., al Hamad Mohammad, Eaton Greg   +8 more
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