Mahdi Hasan, Indian morphologist and microscopist (Akbarpur, Ambedkar Nagar District, Uttar Pradesh State 21 March 1936 – Lucknow 12 January 2013)

Authored 135 research papers, 6 books and 8 book chapters

First to use single neuron recording for studying thallotoxicosis (1978)

With P. Glees proposed a new hypothesis for the genesis of neuronal lipofuscin (1972)

With P. Glees & K. Tischner first to perform an ultrastructural classification of synapses in the lateral geniculate body of the monkey

First demonstrated vacuolar degeneration of neurons in the lateral geniculate body of the monkey

Described different morphological types of occipital sinuses

Discovered a new technique in vivo for demonstrating zinc in brain sections (1977)