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1.
Horiz. sanitario (en linea) ; 22(2): 435-443, may.-ago. 2023. tab, graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1534554

ABSTRACT

Resumen Objetivo: Describir los factores que pueden determinar la reducción de los síntomas en el trastorno de ansiedad generalizada y trastorno por estrés postraumático, mediante estimulación magnética transcraneal en combinación con terapia de extinción. Material y Métodos: Se realizó una búsqueda en bases de datos (Cochrane, EBSCO, Pubmed, Sciencedirect y Wiley), con las palabras clave "transcranial magnetic stimulation", "human", "fear extinction". Los criterios de selección incluyen estudios en humanos, tratamientos con terapia de extinción y EMT, en donde se registre la conductancia de la piel como variable de respuesta. Resultados: Existe poca investigación que cumpla con los criterios de la presente revisión bibliográfica. Se obtuvieron 5 artículos enfocados en el tratamiento de síntomas como el miedo y la recurrencia de recuerdos traumáticos. Los protocolos de estimulación son heterogéneos, la frecuencia de estimulación va de 1 Hz a 30 Hz. La estimulación de alta frecuencia fue la más utilizada. La duración máxima de los efectos reportados fue de 1 mes. Conclusiones: La EMT junto con la terapia de extinción como tratamiento para TEPT y TAG es un campo de estudio que requiere de más investigación. Los resultados sobre su eficacia no son concluyentes, el tamaño de muestra es pequeño y es necesario identificar qué protocolos son eficaces a largo plazo. Los estudios clínicos con pacientes que presenten estos trastornos son relevantes para conocer los efectos de aquellos protocolos que han sido exitosos en pacientes sanos (condicionados al miedo).


Abstract Objective: To describe the factors that can determine the reduction of symptoms in generalized anxiety and posttraumatic stress disorders by transcranial magnetic stimulation in combination with extinction therapy. Material and methods: A bibliographic review was conducted in databases (Cochrane, EBSCO, PubMed, ScienceDirect y Wiley), using the keywords: "transcranial magnetic stimulation", "human" and "fear extinction". A selection of clinical trials that used extinction therapy plus TMS and the skin conductance as variable quantified was made. Results: Five articles focused on the treatment of symptoms, like fear and recurrence of traumatic memories were obtained. There is little research on the topic. Stimulation protocols are heterogeneous between studies (stimulation frequency ranges from 1 to 30 Hz). Most of the studies reviewed reported the use of high-frequency stimulation. The maximum duration of therapeutic effects reported was one month. Conclusions: TMS and extinction therapy as a treatment for PTSD and GAD has a growing research field. Effectiveness results are not conclusive, sample sizes are small, and studies do not focus on which protocols are effective in the long-term. New studies that include patients with diagnosed PTSD and GAD are relevant to assess the protocols that have already been successful in healthy patients (fear-conditioned).

2.
Arch. med. res ; 28(4): 577-81, dec. 1997. tab, ilus
Article in English | LILACS | ID: lil-225266

ABSTRACT

Levels of DARP in the cerebrospinal fluid (CSF) of patients having a wide variety of nerulogical disorders were determined. Neurological disorders were categorized as degenrative, demyelinating, epilepsy, trauma, hydrocephalia, inflammatory, A-V malformation, CNS neoplasia, parasitic and stroke. DARP levels were determined by an enzyme-linked immunoabsorbent assay (ELISA) using monoclonal anti-DARP antibodies. A synthetic peptide corresponding to the first 36 aa of the N-terminal of DARP was used as standard. A total of 7 non-neurological patients and 73 patients with neurological disorders were tested. The relative concentrations of DARP decreased in patients with Parkinson's diseases vs. patients with non-neurological diseases and increased in other neuropathologies such as demyelinating, hydrocephalia and A-V malformations. Data obtained suggest that changes in the percentage and concentration of DARP may correlate with certain neurological disorders, showing particularly low levels in Parkinson's disease patients


Subject(s)
Humans , Male , Female , Central Nervous System Diseases/cerebrospinal fluid , Cerebrospinal Fluid , Dopamine , ATP Binding Cassette Transporter, Subfamily B, Member 1/cerebrospinal fluid
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