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Hyperhomocysteinemia is a medical condition characterized by an abnormally high level of total homocysteine (that is, including homocystine and homocysteine-cysteine disulfide) in the blood, conventionally described as above 15 μmol/L. [1]
In the body, homocysteine can be recycled into methionine or converted into cysteine with the aid of vitamin B 6, B 9, and B 12. [3] High levels of homocysteine in the blood (hyperhomocysteinemia) is regarded as a marker of cardiovascular disease, likely working through atherogenesis, which can result in ischemic injury.
Methylenetetrahydrofolate reductase deficiency is the most common genetic cause of elevated serum levels of homocysteine (hyperhomocysteinemia). It is caused by genetic defects in MTHFR, which is an important enzyme in the methyl cycle. [1] Common variants of MTHFR deficiency are asymptomatic and have only minor effects on disease risk. [2]
While not an official diagnosis under the DSM-5, the classification of mental health disorders, high-functioning anxiety refers to a more subtle and less obvious form of anxiety.
The saying “knowledge is power” applies well in certain situations — like becoming a leader in your field of expertise or knowing the best places to eat (we all have different skills).
Diagnosis is not always straightforward as serum levels can be falsely high or normal. [10] Elevated methylmalonic acid levels may also indicate a deficiency. [2] Individuals with low or marginal values of vitamin B 12 in the range of 148–221 pmol/L (200–300 pg/mL) may not have classic neurological or hematological signs or symptoms. [2]
This is a list of psychiatric medications used by psychiatrists and other physicians to treat mental illness or distress.. The list is ordered alphabetically according to the condition or conditions, then by the generic name of each medication.
The US Food and Drug Administration (FDA) approved betaine trimethylglycine (also known by the brand name Cystadane) for the treatment of homocystinuria, a disease caused by abnormally high homocysteine levels at birth. [22] Trimethylglycine is also used as the hydrochloride salt (marketed as betaine hydrochloride or betaine HCl).