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Symptoms of folate deficiency Some of the symptoms that can be caused by a lack of folate include: General symptoms Fatigue Irritability Headache Dizziness Gastrointestinal symptoms Sore tongue Mouth ulcers Diarrhea Loss of appetite Neurological symptoms Numbness and tingling in the hands and feet Confusion Depression Cognitive impairment Dementia Hematological symptoms Anemia (pale skin, shortness of breath) Testing for vitamin B12 and folate deficiency When to test Since vitamin B12 and folate affect many functions in the body and there are many possible symptoms, blood testing for vitamin B12 and folate is commonly ordered by the physicians at the Adult Down Syndrome Center

A still unsolved issue, connected with the role of carnitine in modulating gene expression (Figure 1) is the link between mitochondria and nucleus: acetylcarnitine produced in mitochondria would reach the nucleus providing acetyl units (Figure 2)

10.1186/s12967-022-03717-9 43 LiY.JinN.ZhanQ.HuangY.SunA.YinF.et al (2025)

These glutathione skin whitening injections target melanin production, resulting in a fairer and more even complexion