Dr. Andreas Plaitakis received his
M.D. and Ph.D. degree from the University of Athens Greece. He was trained in Internal
Medicine and in Neurology at Mount Sinai Hospital, where he also completed his
NIH post-doctoral fellowship in Neurochemistry. He then joined the Mount Sinai
faculty and rose through the ranks to Professor of Neurology. After working at
Mount Sinai for over 20 years, he became Chairman of the
Department of Neurology at the newly established University of Crete, where for
a decade he also served as Director of the Graduate Program in Neuroscience and
as Dean of Graduate studies. Recently, he returned to Mount Sinai joining again
the Neurology faculty.
Dr.
Plaitakis has been the principal investigator of research projects funded by
NIH for almost two decades. He has published over 150 original articles and book chapters, and two
textbooks. He has been an invited speaker at many National and
International Meetings. He is an elected member of the American Neurologic
Association.
Dr.
Plaitakis divides
his time between Clinical Neurology and Basic Research. He has made
original observations that linked metabolic abnormalities to human degenerative
neurological disorders (Plaitakis, et al. Science, 1982). His observations on
glutamate alterations in Amyotrophic Lateral Sclerosis was rationale behind the
use of Riluzole, a glutamate-modifying agent, for treating this devastating
disorder, the only effective treatment that is currently available.
At
the basic Science level, his team cloned and characterized human proteins
involved in the metabolism and transport of glutamate, a major excitatory
neurotransmitter involved in a multitude of normal brain functions and in
neurodegenerative processes. They also elucidated the evolutionary steps by
which a novel glutamate-metabolizing enzyme acquired unique properties and a
nerve tissue expression profile that may have contributed to traits, such as
cognitive function, unique to humans.
Dr.
Plaitakis also maintains a special interest in the clinical aspects and etio-pathogenesis
of movement disorders (Ataxia, Huntington’s disease, Parkinson’s disease, etc),
dementias and Multiple Sclerosis (MS). He and his co-investigators identified environmental
factors contributing to the rising incidence of MS among females. They also detected
brain hemodynamic changes at the earliest stages of MS that correlate with
cognitive dysfunction. In
addition, he is dedicated to the care of patients with diverse neurologic
conditions that fall within the full spectrum of general neurology.
HONORS/AWARDS
1. Special issue of Neurochemical Research. (2014)
dedicated to Dr. Andreas Plaitakis “A neurologist with a lifetime
fascination for neurochemistry” for his contribution to the field of
Neurochemistry
2. Excellence
in Teaching Award, Neurology Residents, Mount Sinai Hospital, N.Y., 1994
3. Elected
member of the American Neurological Association (1984)
4. Two Awards
(1984 and 1988) from the Kassian Benevolent Association of New York for
services provided to the Kassian community of New York
5. Fred Valergakis Award from the Hellenic University Club of York (1984)
6. NIH National Service Award (1977‑1978)
7. Honorary Citizen of Kassos Island (1979) for
Outstanding Medical and Humanitarian Services to the People of Kassos Island
8. Honorary Scholarship (1963-1968) for being top student in the Medical
School.
LATEST PUBLICATIONS (2010-2014)
C. Spanaki, I. Zaganas, K. Kleopas and A Plaitakis. Human GLUD2 Glutamate Dehydrogenase is
expressed in Neural and Testicular Supportive cells. J Biol Chem 2010
May 28;285(22):16748-56.Spanaki C, Zafeiris S, Plaitakis A. Levodopa-aggravated lateral flexion of the neck
and trunk as a delayed phenomenon of unilateral pallidotomy. Mov
Disord. 2010 Apr 15;25(5):655-6. Plaitakis A, Latsoudis H, Kanavouras K, Ritz B, Bronstein JM, Skoula I, Mastorodemos V, Papapetropoulos S, Borompokas N, Zaganas I, Xiromerisiou G, Hadjigeorgiou GM and Spanaki C. Gain-of-function variant in GLUD2 glutamate dehydrogenase modifies Parkinson's disease
onset. Eur J Hum Genet. 2010 Mar;18(3):336-41.Mastorodemos
V, Nikolakaki H, Tzagournissakis M, Kotzamani D, Panou T, Spanaki C,
Klados G, Maris T, Kontolaimaki E, Psaroudaki K, Chlouverakis G,
Georgakakis G, Plaitakis A.
Benign multiple sclerosis in Crete. Mult Scler. 2010
Jun;16(6):701-6. Epub 2010 Mar 17.Borobokas N., Papachatzaki MM,
Kanavouras K., Mastorodemos V.,
Zaganas I., Spanaki C. and Plaitakis
A. Estrogen modification of human glutamate dehydrogenases is linked
to enzyme activation state. J Biol Chem 285: 31380-31387,
2010.Saloustros E, Zaganas I, Mavridis M, Vamvakas L, Plaitakis A, Georgoulias V, Mavroudis D. Anti-CV2 associated
cerebellar degeneration after complete response to chemoradiation of head
and neck carcinoma. J
Neurooncol. 2010 Apr;97(2):291-4. doi: 10.1007/s11060-009-0022-2. Epub
2009 Oct 2.Plaitakis
A, Latsoudis H, Spanaki C. The human GLUD2 glutamate dehydrogenase and
its regulation in health and disease. Neurochem Int. 2011 59: 495-509,
2011Tsounis
S, Kimiskidis VK, Kazis D, Gkiatas K, Garganis K, Karageorgiou K,
Giannakodimos S, Papathanasopoulos P, Plaitakis A, Papadimitriou A,
Lyras L, Emir B. An
open-label, add-on study of pregabalin in patients with partial seizures:
A multicenter trial in Greece. Seizure. 2011 Jul 18. [Epub ahead of print]Zaganas
I, Halpin AP, Oleinik A, Alegakis A, Kotzamani D, Zafiris S, Chlapoutaki
C, Tsimoulis D, Giannakoudakis E, Chochlidakis N, Ntailiani A, Valatsou C,
Papadaki E, Vakis A, Furie KL, Greenberg SM, Plaitakis A. A comparison of acute
hemorrhagic stroke outcomes in 2 populations: the Crete-Boston study.
Stroke.2011 Dec;42(12):3640-2. Kanavouras
K, Tzatzarakis MN, Mastorodemos V, Plaitakis A, Tsatsakis
AM. A case report of
motor neuron disease in a patient showing significant level of DDTs, HCHs
and organophosphate metabolites in hair as well as levels of hexane and
toluene in blood.Toxicol Appl Pharmacol. 2011 Nov 1;256(3):399-404. doi:
10.1016/j.taap.2011.07.022. Epub 2011 Aug 6.Khatri B, Barkhof F, Comi G, Hartung HP, Kappos L,
Montalban X, Pelletier J, Stites T, Wu S, Holdbrook F, Zhang-Auberson L,
Francis G, Cohen JA; TRANSFORMS Study Group. Comparison of
fingolimod with interferon beta-1a in relapsing-remitting multiple
sclerosis: a randomised extension of the TRANSFORMS study. Lancet
Neurol. 2011 Jun;10(6):520-9. doi:
10.1016/S1474-4422(11)70099-0. Epub 2011 May 13.Albrecht
J, Schousboe A, Plaitakis A. The glutamatergic
synapse in Aghia pelagia: the spirit of Wierzba moves south.
Neurochem Int. 2012 Sep;61(4):443 Panou
T, Mastorodemos V, Papadaki E, Simos PG, Plaitakis A: Early signs of memory
impairment among multiple sclerosis patients with clinically isolated
syndrome. Behav Neurol.
2012;25(4):311-326.Zaganas
I, Spanaki C, Plaitakis A. Expression of human GLUD2 glutamate dehydrogenase in
human tissues: functional implications. Neurochem Int. 2012
Sep;61(4):455-62. Kotzamani
D, Plaitakis A. Alpha helical
structures in the leader sequence of human GLUD2 glutamate dehydrogenase
responsible for mitochondrial import. Neurochem Int. 2012
Sep;61(4):463-469. Spanaki
C, Zaganas I, Kounoupa Z, Plaitakis A. The complex
regulation of human glud1 and glud2 glutamate dehydrogenases and its
implications in nerve tissue biology. Neurochem Int. 2012
Sep;61(4):470-81. Kotzamani
D, Panou T, Mastorodemos V, Tzagournissakis M, Nikolakaki H, Spanaki C, Plaitakis
A. Rising
incidence of multiple sclerosis in females associated with urbanization.
Neurology.
2012 May 29;78(22):1728-35. Papadaki
EZ, Mastorodemos VC, Amanakis EZ, Tsekouras KC, Papadakis AE, Tsavalas ND,
Simos PG, Karantanas AH, Plaitakis A, Maris TG. White matter and deep
gray matter hemodynamic changes in multiple sclerosis patients with
clinically isolated syndrome. Magn Reson Med. 2012
Dec;68(6):1932-42. Ioannou
M, Alissafi T, Lazaridis I, Deraos G, Matsoukas J, Gravanis A,
Mastorodemos V, Plaitakis A, Sharpe A, Boumpas D, Verginis P. Crucial role of
granulocytic myeloid-derived suppressor cells in the regulation of central
nervous system autoimmune disease. J Immunol. 2012 Feb
1;188(3):1136-46Spanaki
C, Plaitakis A. The role of glutamate dehydrogenase in mammalian
ammonia metabolism. Neurotox Res. 2012
Jan;21(1):117-27. Petrakis
I, Mavroeidi V, Stylianou K, Andronikidi E, Lioudaki E, Perakis K,
Stratigis S, Vardaki E, Zafeiri M, Giannakakis K, Plaitakis A,
Amoiridis G, Saraiva MJ, Daphnis E: Hsf-1 affects
podocyte markers NPHS1, NPHS2 and WT1 in a transgenic mouse model of
TTRVal30Met-related amyloidosis.
Amyloid. 2013 Jul 5. [Epub ahead of print]Pajęcka
K, Nielsen CW, Hauge A, Zaganas I, Bak LK, Schousboe A, Plaitakis
A, Waagepetersen HS: Glutamate
Dehydrogenase Isoforms with N-Terminal (His)6- or FLAG-Tag
Retain Their Kinetic Properties and Cellular Localization. Neurochem
Res. 2013 Apr 26. [Epub ahead of print] Plaitakis
A, Zaganas I, Spanaki C. Deregulation of
glutamate dehydrogenase in human neurologic disorders. J
Neurosci Res. 2013 Aug;91(8):1007-17. doi: 10.1002/jnr.23176. Epub
2013 Mar 6.Mermigkis
C, Bouloukaki I, Mastorodemos V, Plaitakis A, Alogdianakis V,
Siafakas N, Schiza S: Medical
treatment with thiamine, coenzyme Q, vitamins E and C, and carnitine
improved obstructive sleep apnea in an adult case of Leigh disease.
Sleep
Breath. 2013 Feb 7. [Epub ahead of print]Petrakis
I, Mavroeidi V, Stylianou K, Efthymiou G, Perakis K, Vardaki E, Stratigis
S, Giannakakis K, Kourouniotis K, Amoiridis G, Plaitakis A, Saraiva
MJ, Yamamura KI, Daphnis E. Human TTRV30M
localization within podocytes in a transgenic mouse model of transthyretin
related amyloidosis: does the environment play a role? Transgenic
Res. 2013 Feb;22(1):101-16. Shashidharan
P, Plaitakis A. The Discovery of
Human of GLUD2 Glutamate Dehydrogenase and Its Implications for Cell
Function in Health and Disease. Neurochem Res. 2013
Dec 19. [Epub ahead of print]PMID:24352816Papadaki
EZ, Simos PG, Panou T, Mastorodemos VC, Maris TG, Karantanas AH, Plaitakis
A. Hemodynamic
evidence linking cognitive deficits in clinically isolated syndrome to
regional brain inflammation. Eur J Neurol. 2013
Dec 26. doi: 10.1111/ene.12338. [Epub ahead of print] PMID:24373026Zaganas
I, Pajęcka K, Wendel Nielsen C, Schousboe A, Waagepetersen HS, Plaitakis
A. The
effect of pH and ADP on ammonia affinity for human glutamate
dehydrogenases. Metab Brain Dis. 2013
Jun;28(2):127-31. doi: 10.1007/s11011-013-9382-6. Epub 2013 Feb 20. Papadaki
EZ, Simos PG, Mastorodemos VC, Panou T, Maris TG, Karantanas AH, Plaitakis
A. Regional
MRI perfusion measures predict motor/executive function in patients with
clinically isolated syndrome. Behav Neurol. 2014;2014:252419. doi: 10.1155/2014/252419. Epub
2014 Jan 23.Spanaki
C, Kotzamani D, Petraki Z, Drakos E, Plaitakis A. Heterogeneous
Cellular Distribution of Glutamate Dehydrogenase in Brain and in
Non-neural Tissues. Neurochem Res.2014 Jan 17.
[Epub ahead of print] PMID: 24436052Papadaki
EZ, Simos PG, Panou T, Mastorodemos VC, Maris TG, Karantanas AH, Plaitakis
A. Hemodynamic
evidence linking cognitive deficits in clinically isolated syndrome to
regional brain inflammation. Eur J Neurol. 2014 Mar;21(3):499-505. doi: 10.1111/ene.12338.
Epub 2013 Dec 26.Fanouriakis
A, Mastorodemos V, Pamfil C, Papadaki E, Sidiropoulos P, Plaitakis
A, Amoiridis G, Bertsias G, Boumpas DT. Coexistence of
systemic lupus erythematosus and multiple sclerosis: prevalence, clinical
characteristics, and natural history. Semin Arthritis Rheum. 2014 Jun;43(6):751-8. doi:
10.1016/j.semarthrit.2013.11.007. Epub 2013 Nov 13.Zaganas
I, Schousboe A. A
neurologist with a lifetime fascination for neurochemistry: preface for
the special issue dedicated to Dr. Andreas Plaitakis. Preface.
Neurochem Res. 2014;39(3):423-5.
doi: 10.1007/s11064-013-1211-0. Epub 2013 Dec 7. Mastorodemos
V, Kanavouras K, Sundaram S, Providaki M, Petraki Z, Kokkinidis M, Zaganas
I, Logothetis DE, Plaitakis A. Side-chain
interactions in the regulatory domain of human glutamate dehydrogenase
determine basal activity and regulation. J Neurochem. 2014 Dec 31. doi: 10.1111/jnc.13019. [Epub ahead
of print]