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Polarised LM of crystals of Vitamin B12

Polarised LM of crystals of Vitamin B12

A613/0239

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Credit

CLAUDE NURIDSANY & MARIE PERENNOU / SCIENCE PHOTO LIBRARY CLAUDE NURIDSANY & MARIE PERENNOU / SCIENCE PHOTO LIBRARY

Caption

Polarised light micrograph of crystals of Vitamin B12 (cyanocobalamin). This is one of the water- soluble B-complex vitamins, and is necessary for the synthesis of nucleic acids and the maintainance of myelin in the nervous system. Vitamin B12 deficiency affects almost all body tissues. The most serious effects of this are pernicious anaemia and a degeneration of the nervous system. Vitamin B12 is contained only in foods of animal origin, especially liver, fish and eggs. Recommended adult daily intake is 3-4 microgrammes. Magnification x60 at 35mm size.

Release details

Model release not required. Property release not required.

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