Indian Journal of PsychiatryIndian Journal of Psychiatry
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Year : 2019  |  Volume : 61  |  Issue : 1  |  Page : 70-76

Serum S100B levels in patients with depression

1 Department of Laboratory Medicine, All India Institute of Medical Sciences, New Delhi, India
2 Department of Psychiatry, All India Institute of Medical Sciences, New Delhi, India

Correspondence Address:
Dr. Asok Kumar Mukhopadhyay
Department of Laboratory Medicine, All India Institute of Medical Sciences, New Delhi - 110 029
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/psychiatry.IndianJPsychiatry_391_16

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Background: The biochemical basis of depression has been related to blood–brain barrier (BBB) allowing/restricting a number of components to enter the brain milieu from the peripheral plasma milieu. S100B has been associated with BBB damage and is used as a marker of its integrity. Several studies have reported that depressive patients have increased levels of S100B in serum and cerebrospinal fluid. Materials and Methods: Forty-two confirmed cases of depression, 13–25 years of ages were recruited from the Department of Psychiatry, All India Institute of Medical Sciences during the period from January 2013 to June 2014 along with 42 healthy controls of comparable age and sex. Psychometric evaluation of the patients and controls was done to assess the severity of depression using Beck's Depression Inventory-II and Hamilton Depression Rating Scale. Medical assessment and laboratory investigations were done. Serum S100B levels were measured using Sandwich ELISA. The results obtained were statistically analyzed. Results: Levels of serum S100B were significantly elevated in patients with major depression as compared to controls. Significantly higher levels of S100B were seen only in females as compared to their healthy counterparts. Serum S100B was higher in depressed participants with the recurrent disorder than those with single episode. No correlation of levels of this marker was seen with clinical severity of the patients. It was found that with increased duration of illness for which the patient was being treated with antidepressants, the patients had higher levels of S100B. Conclusions: Serum S100B can be used as a biomarker of depression.



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