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Advanced Neurology                                                     George Cotzias and L-DOPA therapy



            disturbances represents another hallmark characteristic of   National Laboratory (BNL), where he focused on
            PD. 39,42,44,47,51  These motor deficits affect the patient’s quality   cyclotron research,  Cotzias began studying manganese
                                                                              7,38
            of life (QoL). 20                                  poisoning 7,38,45,46  and  catecholamines. 7,38,53  Cotzias
              George Cotzias was born in Greece. 1,7,33,38  Cotzias   discovered the ability of the brain to remember the chemical
                                                                                                             7
            studied at leading educational institutions in Greece   content of a drug and respond to it upon reintroduction.
            and the United States of America (USA). 7,33,38,46  His first   Even while struggling with cancer, Cotzias never stopped
                                                                                                7,46
            distinction was at Harvard University as one of the top   working on challenging research studies.  He stated that
            graduates. 1,7,33,38,46  He received specialized training at   L-DOPA deficiency could be an early indicator of future
            New York’s leading hospitals. 1,7,38               breast cancer. 7
              Cotzias emphasized the importance of existing      Cotzias received numerous international awards and
            knowledge on levodopa (L-DOPA), identified novel   distinctions. 1,2,7,38,46  After his passing, his body was returned
                                                                                                            46
                                                                       3,46
            L-DOPA-related properties, and developed combination   to Greece,  where state-organized funeral was held.
            therapies involving L-DOPA and dopamine inhibitors. He   Greece further honored him by issuing a commemorative
                                                                                              1,7
            became the pioneer in uncovering the practical therapeutic   stamp bearing his image and his name.  Nowadays, many
            effects and previously unrecognized side effects of L-DOPA   academic courses, events, and scholarships are named after
                                                                   7
            in the treatment of PD. 52-56  Before Cotzias, many physicians   him.  The current article was written to provide a concise
            have tried to translate the theoretical benefits of L-DOPA   biography of George Cotzias as a mark of honor to his
            into clinical practice through extensive studies, but all   memory and all his great novel achievements. Furthermore,
            had failed. 41,47,55-58  Cotzias used science and art to be sure   this  article  intends to  provide  a  comprehension of  how
            and precise about L-DOPA features. 2,3,7,8,19,21,26,33,47,59  It was   Cotzias created the successful formula of L-DOPA, the
            because of Cotzias that the resistance to neurodegenerative   revolutionary therapy. The article also explores how
            PD treatment was addressed. 1,7,30,33,46,55,60     Cotzias  leveraged  the  new  research  models  to  combine
                                                               L-DOPA with other substances, extending its application
              The conclusions of Cotzias on L-DOPA were verified   to the diagnosis and understanding of other diseases. In
            by many other scientists.  L-DOPA was proven to be the   addition, this work seeks to highlight the significance
                                61
            standard, cheapest, and most successful PD therapy. 35,42,62-67   of detailed scientific observation in achieving medical
            Providing L-DOPA to Parkinsonian patients has been   breakthroughs. Another aim of this article is to have a
            proven to be a synonym for longer life expectancy and   better comprehension of the nervous system and consider
            improved QoL. 35,37,66,68,69  It was a great gift for medicine, the   seriously the possibility of restoring health in PD patients.
            health condition, and the lives of many PD patients. 46,66,68,70-72   Finally, the article provides a comprehensive review of PD
            They were “awakened” and found themselves from being   and its evolving treatment modalities, from past to present.
            breathing statues to having the ability to perform daily
            activities. 73,74  Oliver Sacks named his book “Awakenings”   2. Brief history of PD
            after being impacted by Cotzias using the term
                                                                                 1-3
            “awakenings” to describe L-DOPA’s effect.  At present, the   PD named Kampavata  was first mentioned in Ayurvedic
                                             74
                                                                                      th
                                                                                               1
                                                                               th
            movie “Awakenings,” based on the book by Oliver Sacks,   texts between the 5  and 12  centuries.  However, James
            reminds laymen of the importance of translating L-DOPA   Parkinson, through his book “An Essay on the Shaking
            from  theory  to  practice.   Certain  allegations  about the   Palsy” published in 1817, was the first to define the
                                75
            neurodegenerative and toxical properties of L-DOPA were   standard symptoms of PD. His work also introduced the
            not substantiated. 17,22,37,41,69  Another unique achievement   pathophysiological framework that was recognized by the
            of Cotzias was the formulation of carbidopa/L-DOPA   medical community, classified PD as a distinct neurological
            medicine. 1,3,7,19,32  Within a year Cotzias published the   disease, and inspired many researchers to pursue further
            results of carbidopa/L-DOPA, the first oral formulation   investigations on the disease. 1-9
            of this therapy became commercially available. 3,5,32  Its   PD is characterized by internal as well as external
            efficacy in treating PD and gastroenterological problems   disorders. 10-17  Affecting no fewer than 10 million people
            led to the development of an intestinal gel formulation in   globally, it was defined as the second most common and
            Sweden. 5,10,19                                    progressive neurodegenerative disorder. 1,18-25  The disease
              Later, a skin patch option of carbidopa/L-DOPA was   impacts  the  patient’s  QoL.   The  distinguishable  internal
                                                                                     20
            produced. 2,5,8,32  Beyond its use in neurological disorders,   abnormality and the most studied and strongly damaged
            L-DOPA was also effective in curing other diseases. 56,72    part of the brain in PD are the SN, a component of the basal
            It was an essential tool for a further explanation of other   ganglia. 5,11,15,21,26-28  The SN is composed of neuromelanin,
            illnesses, not always neurological.  At Brookhaven   over 1,200,000 neurons, and high levels of dopamine - a
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            Volume 4 Issue 2 (2025)                         42                               doi: 10.36922/an.5177
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