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  2. Serum vitamin B12 - Wikipedia

    en.wikipedia.org/wiki/Serum_vitamin_B12

    Serum vitamin B 12 is a medical laboratory test that measure vitamin B 12 only in the blood binding to both transcobalamins. [1] Most of the time, 80–94% of vitamin B 12 in the blood binds to haptocorrin, while only 6–20% is binds to transcobalamin ll. [2] Only transcobalamin ll is "active" and can be used by the body. [1]

  3. Vitamin B12 - Wikipedia

    en.wikipedia.org/wiki/Vitamin_B12

    For this reason, elevated serum homocysteine over 15 micromol/L and methylmalonic acid (MMA) over 0.271 micromol/L are considered better indicators of B 12 deficiency, rather than relying only on the concentration of B 12 in blood. [2] However, elevated MMA is not conclusive, as it is seen in people with B 12 deficiency, but also in elderly ...

  4. Hyperhomocysteinemia - Wikipedia

    en.wikipedia.org/wiki/Hyperhomocysteinemia

    Evidence exists linking elevated homocysteine levels with vascular dementia [10] and Alzheimer's disease. [11] [12] [13] There is also evidence that elevated homocysteine levels and low levels of vitamin B6 and B12 are risk factors for mild cognitive impairment and dementia. [14]

  5. The Top Signs You Have a Vitamin B12 Deficiency - AOL

    www.aol.com/top-sign-vitamin-b12-deficiency...

    A vitamin B12 level of less than 200 pg/mL is considered deficient. Treatment First, have your health care provider run blood tests to see if you truly have a B12 deficiency.

  6. Is It Possible to Take Too Much B12? Here's What ... - AOL

    www.aol.com/lifestyle/possible-too-much-b12-here...

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  7. Vitamin B12 for Weight Loss: Does It Work? - AOL

    www.aol.com/vitamin-b12-weight-loss-does...

    Another study of over 600 young adults and children looked at the link between vitamin B12 levels and body mass index (BMI), with lower B12 levels resulting in higher body weight.

  8. Haptocorrin - Wikipedia

    en.wikipedia.org/wiki/Haptocorrin

    Found in fresh animal products (such as liver), vitamin B 12 attaches haptocorrin, which has a high affinity for its molecular structure. [5] Coupled together vitamin B 12 and haptocorrin create a complex. This haptocorrin–B 12 complex is impervious to the insult of the stomach acid, and passes on via the pylorus to the duodenum.

  9. Macrocytosis - Wikipedia

    en.wikipedia.org/wiki/Macrocytosis

    Symptoms, Complete blood count, Peripheral blood smear, Vitamin B12 level, Red cell folate level Macrocytosis is a condition where red blood cells are larger than normal. [ 1 ] These enlarged cells, also known as macrocytes, are defined by a mean corpuscular volume (MCV) that exceeds the upper reference range established by the laboratory and ...