Keep in mind that the clinical manifestations of vitamin B12 deficiency differ depending on the degree and duration of deficiency, but some of the most common symptoms of a B12 deficiency include 4 : Anemia Chronic fatigue Shortness of breath Heart palpitations Pallor Skin hyperpigmentation Glossitis Infertility Osteoporosis Sensory loss Abnormal balance or reflexes Cognitive impairment Memory loss Older adults are at a higher risk for vitamin B12 deficiency, as are those on a vegetarian or vegan diet, as dietary B12 is found in animal products
In recent years, the role of Akkermansia muciniphila on the intestinal barrier has also been revealed, which improves the function of intestinal barrier by restoring the thickness of mucous layer and tight junction protein as well as producing specific antibacterial and bioactive lipids with anti-inflammatory properties [161]
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Glutathione neutralizes them by donating an electron, stabilizing the free radical without becoming unstable itself
10.3389/fnut.2016.00018 Front Nutr
71 BMP signaling promotes astrocytic differentiation, but this effect is suppressed by the BMP antagonist Noggin, which is secreted by the niche to maintain NSCs in an undifferentiated state
