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Interview with Dr Lia Neto – Institute of Anatomy

By etavares On 31 October, 2013 News Report / Profile | 2013 Comments Off on Interview with Dr Lia Neto – Institute of Anatomy No tags

The Newsletter of the Faculty interviewed Dr Lia Neto, a neuroradiologist and researcher at the Institute of Anatomy. She is working on her PhD thesis involving the study of the brain nucleus called human nucleus accumbens with the aim of advancing science regarding the treatment of some psychiatric disorders that are medically intractable, such as obsessive compulsive disorder, depression, and severe anxiety, as this nucleus is involved in the so called brain reward mechanisms.

The subject matter of my PhD thesis is the human nucleus accumbens. This brain structure has been well characterized in research involving the brain of animals, such as mice and chimpanzees, but its limitations, anatomical relationships and its functional significance have not yet been rigorously established in our species.

This study is particularly important due to the fact that the accumbens is involved in brain reward circuits. This network includes several nuclei and neural pathways that are responsible for important emotional and psychomotor functions, and it is equally involved in motivation mechanisms. Of these structures, the nucleus accumbens is often called the “pleasure centre” and has become an important target for deep brain stimulation.

This neurosurgical technique was first used in 1987 to treat Parkinson’s disease and it involves placing electrodes in the deep-brain parenchyma connected to an electrical stimulation device similar to a pacemaker. The good results obtained in the treatment of this pathology and the fact that it is a safe and reversible technique lead to its expansion and to the aim to treat similar diseases. More recently, the treatment of neuropsychiatric disorders resistant to medical therapy, such as selected cases of obsessive-compulsive disorder, depression and severe anxiety, started to be used. A few clinical cases of clinical stimulation of the nucleus accumbens in drug addicts and patients with anorexia have also been published.

Thus, given that the nucleus accumbens has become an important stimulation target, refining and developing these techniques absolutely depends on extensive anatomical and imaging research on this structure.

My association with the Institute of Anatomy started as a volunteer teaching assistant during my medical degree, which I concluded in 2003. Subsequently, I began the research that led to the completion of the master degree in neurosciences in 2007, with the thesis “Studies on the Human Nucleus Accumbens – identification, localization and imaging”. This research established that the human nucleus accumbens is a morphologically distinct and demarcated structure, and it enabled registering its average size, shape and peripheral stereotactic coordinates representing the spatial location of this nucleus in the human brain.

In addition to my teaching activity as Neuroanatomy Guest Junior Lecturer, I have authored and tutored students’ research projects under FMUL’s Office for the Support of Scientific Research (GAPIC). In 2011 I concluded the additional internship in Neuroradiology and became Attending Physician in the Neuroradiology Department of Santa Maria Hospital.

This multitasking as a lecturer, researcher and clinician affected the evolution of my doctoral thesis, titled Human Nucleus Accumbens – From Anatomy to Imaging and Clinical Practice”. This work led to the creation of a tri-dimensional mathematical model based on the anatomical study of the nucleus, defining a precise target for use in deep brain stimulation. The anatomical study was complemented with a histological and immunohistochemical analysis establishing the preferred location of dopamine receptors and it enabled determining a previously unidentified area of the nucleus whose existence had been proposed by brain stimulation clinical studies.

Currently, this research cycle is being completed through the structural characterization of the accumbens in vivo using high-field MRI (3Tesla), Diffusion Tensors advanced techniques and Tractography.

This research path is not in accordance with the usual standard of ultra-specialization and analysis. It is a work of synthesis that aims to bring together basic sciences, such as Anatomy and Histology, and modern neuroimaging techniques and clinical practice. It results from the collaboration and encouragement of Professor António Gonçalves Ferreira, Director of this Institute and thesis supervisor, of Professor Jorge Guedes Campos, Director of the Neurological Imaging Unit and co-author of the work, of the involvement of the Neurosurgery and Psychiatry Departments, and of the participation of students who participated in GAPIC projects. It represents a different way of doing research and I believe that it demonstrates that intense clinical activity with less availability for laboratory work is not incompatible with a valid scientific contributio

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Index - News # 37 | out. 2013
 From the Space Shuttle to the classroom
 Transfusion Medicine Subject: a pioneering initiative in the Integrated Master Degree in FMUL
 Henrique Veiga Fernandes wins two international scientific prizes on the same day
 Professor Maria do Céu Machado passed her Aggregation Exams with distinction
 2013 Nobel Prize in Medicine awarded for work on cell transport
 University of Lisbon is the 94th best university in Europe
 Bolsa de 25 mil euros para estudar cancro da mama
 Introducing the BEME Collaboration and the CEMBE
 Interview with Professor Gonçalves Ferreira, Director of the Institute of Anatomy
 History of the Institute of Anatomy
 Interview with Dr Lia Neto – Institute of Anatomy
 Interview with Dr Pedro Henriques – Anatomy Technician
 The Main Library of FMUL
 Lançamento do Livro Do ENEE à Ordem – Uma visão realista muito particular
 Fourth Advanced Course in Viral Hepatitis
 Move-te Mais Association
 Inês Figueiredo, winner of the AstraZeneca Foundation Innovate Competition | Interview
 Missão Move-te Mais Cabo Verde 2013
 Às Sextas na Biblioteca
 Publicações Científicas FMUL / HSM / IMM (Setembro/Outubro 2013)
 Participation of Lecturers in Academic Examination Panels in other institutions (April-June 2013)
 Post- Graduate Certificate – Introduction to Clinical Research: A Pratical Course
 Pesquisar Ciência e SaúdeBiblioteca-CDI
 ICVL: a worldwide reference in the treatment of cardiovascular diseases
 Integrated Master Degree in Medicine – Your Choice
 Evaluation Of The Welcome/Enrolment Week | Year 1, 1st Time, 2013-2014
 Cerimónia de Abertura das Comemorações dos 100 anos da AEFML | Dia 13 de Novembro | Aula Magna FMUL
 Lição de Jubilação Prof. Doutor Mário Andrea | 8 de Novembro | Grande Auditório FMUL
 Campanha Colheita de Sangue e Registo de Dadores de Medula Óssea | 11 de Novembro | IMP
 International Conference on Tobacco Prevention and Control 2013 | 14-15 November
 Dia Mundial da Prematuridade | 17 de Novembro | Anf. 57 EEM-FMUL
 Semana da Ciência e da Tecnologia | 18 a 24 de Novembro
 2as Jornadas – Unidade Universitária de Geriatria | 22 Novembro
 2nd Symposium Acta Médica Portuguesa| Cochrane Workshops Collaboration and Medical Illustration
 TAIJIQUAN – Ginásio Academia de Fitness – Instituto Confúcio da Universidade de Lisboa
 Curso de Meta Análises em Rede | Dezembro 2013
 Ephemerides | Health
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100 AnosPropriedade e Edição: Faculdade de Medicina da Universidade de Lisboa NIPC: 502662875  Periodicidade: Mensal  Diretor: Prof. Doutor Fausto J. Pinto Conselho Editorial: Prof. Doutor Fausto J. Pinto, Profª. Doutora Ana Sebastião, Prof. Doutor Mamede de Carvalho, Prof. Doutor António Vaz Carneiro, Prof. Doutor Miguel Castanho, Dr. Luís Pereira  Equipa Editorial:  Ana Raquel Moreira, Cristina Bastos, Isabel Varela, Joana Sousa, Maria de Lurdes Barata, Rui Gomes, Sónia Teixeira  Colaboração:  Gabinete de Relações Públicas, Internacionais e Comunicação  Versão Inglesa: AP|PORTUGAL- Language Services  Conceção: Metatexto, Lda. e-mail: news@medicina.ulisboa.pt  Sede do Editor e Sede da Redação: Avenida Prof. Egas Moniz, 1649-028 Lisboa Estatuto Editorial Anotado na ERC 

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