Acta Neurol Scand DOI: 10.1111/ane.12306

© 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd ACTA NEUROLOGICA SCANDINAVICA

Clinical Commentary

Multiple sclerosis and vitamin D during pregnancy and lactation Jalkanen A, Kauko T, Turpeinen U, H€ am€ al€ ainen E, Airas L. Multiple sclerosis and vitamin D during pregnancy and lactation. Acta Neurol Scand: 10.1111/ane.12306. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd. Background – Both pregnancy and high vitamin D concentration seem to generate a protective environment against multiple sclerosis (MS) relapses. Longitudinal case–control analysis of vitamin D concentrations during pregnancy and lactation of MS mothers is lacking. Aims of the study – To examine serum 25-hydroxyvitamin-D3 levels of MS patients during and after pregnancy and compare these to the levels measured in healthy controls. Methods – Fifteen relapsing–remitting MS mothers underwent repeated testing for 25-hydroxyvitamin-D3 at 10–12, 26–28 and 35–37 gestational weeks and 1, 3 and 6 months post-partum. An identical series of samples was collected from six control mothers. Results – The prevalence of vitamin D deficiency ( 75 nmol/l and the infant’s requirements for calcium (2). In Europe, consensus on the optimal dietary vitamin D intake, however, has not yet been reached and there is large variation in recommended intakes across different countries (14). Current Nordic recommendation (10 lg, 400 IU) from 2004 seems inadequate, especially during the winter months in these northern latitudes (15). Optimising the vitamin D intake of our MS patients is safe and cheap. We would thus recommend daily vitamin D supplementation of at least 35 lg (1400 IU) regardless the season for pregnant and lactating MS mothers to ensure that also the non-skeletal health benefits are attained. Acknowledgements The following people are acknowledged for contributions to data acquisition: Dr Saara V€ ais€ anen, Department of Neurology, and Dr Anna Alanen, Department of ObGyn, Turku University Hospital; Dr Markus F€ arkkil€ a and Dr Juha Multanen, Department of Neurology, and Dr Risto Kaaja, Department of ObGyn, Helsinki University Hospital; Dr Tuula Pirttil€ a, Department of Neurology, and Dr Maritta R€as€anen, Department of ObGyn, Kuopio University Hospital; Dr Taneli Sarasoja, Department of Neurology, KeskiSuomi Central Hospital, Jyv€ askyl€ a; Dr Juha Huhtakangas; Dr Peter Baumann, Dr Seppo Tuisku, Department of Neurology, Keski-Pohjanmaa Central Hospital, Kokkola; Dr Annikki Salmivaara, Department of Neurology, P€ aij€ at-H€ ame Central Hospital, Lahti; and Dr Laura Kupila, Department of Neurology, Rauma District Hospital.

Conflicts of interests and Sources of Funding Statement Authors declare no conflict of interest. This work was supported by the Finnish Medical Foundation, the University of Turku Graduate School and a grant from Turku University.

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Multiple sclerosis and vitamin D during pregnancy and lactation.

Both pregnancy and high vitamin D concentration seem to generate a protective environment against multiple sclerosis (MS) relapses. Longitudinal case-...
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