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krishnan2.jpgK. Ranga Krishnan, MB ChB, is the dean of the Duke-NUS Graduate Medical School. He also is an international expert in treating depression and other brain disorders of the elderly.

A native of Madras, India, Krishnan received his medical degree from Madras Medical College. He came to Duke in 1981 as a psychiatry resident after completing internships in India and the West Indies. He was chief resident in psychiatry from 1982-83 and a fellow in neurobiology at Duke until 1984. Krishnan was appointed as a faculty member in 1985 and ascended to medical director of the affective disorders unit in 1989. He was named chair of the Department of Psychiatry in 1998.

Krishnan has written three books, more than 50 textbook chapters and more than 200 journal articles on the subjects of elderly depression, dementia, Alzheimer disease, panic disorder, bipolar disorder in late life and obsessive-compulsive disorder, among others. In the late 1990s, he identified and described the pathology of a then little-known condition called vascular depression, in which small strokes in the mood centers of the brain give rise to a unique type of depression.

He has received international recognition for his work, including being listed in Marquis’ Who’s Who in Science and Engineering. He received the Distinguished Investigator Award from the National Alliance for Research on Schizophrenia and Depression, and served as chairman of the clinical neurosciences and biological psychopathology review committee of the National Institute of Mental Health.