The Australian and New Zealand journal of psychiatry · 2009
Homocysteine level in schizophrenia patients.
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Ma Yin Ying, Shek Chi Chung, Wong Max C K, Yip Ka Chee, Ng Roger M K, Nguyen Desmond G H, Poon Ting Keung
Аннотация
OBJECTIVE: Elevated serum levels of homocysteine have been shown to be associated with schizophrenia in some studies, but the evidence is still limited and mixed. The aim of the present study was therefore to evaluate the serum homocysteine level in Chinese in schizophrenia patients and assess its association with clinical phenotypes of the disease.
METHOD: A total of 250 inpatients and 250 healthy controls were identified at Kowloon Hospital and the Red Cross Blood Donation Centre, respectively. Each subject was evaluated with a structured diagnostic interview. Demographic data were collected and blood was analysed for homocysteine level. The Positive and Negative Syndrome Scale was used to grade clinical symptoms of schizophrenia. Confounding factors affecting homocysteine levels were controlled by strict exclusion criteria or statistical methods.
RESULTS: Serum homocysteine level was elevated in Chinese schizophrenia patients. Both male (mean, 12.26 micromol L(-1); control, 11.40 micromol L(-1), p = 0.026) and female (mean, 9.61 micromol L(-1); control, 8.33 micromol L(-1), p < 0.001) patients had a higher serum homocysteine level than the healthy controls, and these differences persisted after controlling for age. There was no significant association between serum homocysteine level and duration of illness, clinical symptoms or age of onset of schizophrenia.
CONCLUSION: The serum homocysteine levels were elevated in both male and female Chinese schizophrenia patients. The levels were not apparently related to other clinical parameters.
METHOD: A total of 250 inpatients and 250 healthy controls were identified at Kowloon Hospital and the Red Cross Blood Donation Centre, respectively. Each subject was evaluated with a structured diagnostic interview. Demographic data were collected and blood was analysed for homocysteine level. The Positive and Negative Syndrome Scale was used to grade clinical symptoms of schizophrenia. Confounding factors affecting homocysteine levels were controlled by strict exclusion criteria or statistical methods.
RESULTS: Serum homocysteine level was elevated in Chinese schizophrenia patients. Both male (mean, 12.26 micromol L(-1); control, 11.40 micromol L(-1), p = 0.026) and female (mean, 9.61 micromol L(-1); control, 8.33 micromol L(-1), p < 0.001) patients had a higher serum homocysteine level than the healthy controls, and these differences persisted after controlling for age. There was no significant association between serum homocysteine level and duration of illness, clinical symptoms or age of onset of schizophrenia.
CONCLUSION: The serum homocysteine levels were elevated in both male and female Chinese schizophrenia patients. The levels were not apparently related to other clinical parameters.