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A key biological player This water-soluble vitamin is involved in red blood cell formation, cell metabolism, nerve function and DNA production

A total of 4275 patients with vitamin B12 deficiency were included in the final analysis

In an experiment where rats were given only alcohol to drink for 30 weeks, rats who were also given Selank performed better on object recognition tasks, did not exhibit the same memory and attention deficits, and did not have increased BDNF compared to the untreated rats [3]

While animal studies suggest safety, long-term human studies are lacking

and adults whose work or history loads the body with repeated physical stress

Ethics statement Ethical approval was not required for the studies on humans in accordance with the local legislation and institutional requirements because only commercially available established cell lines were used