Sebastian Leon Vallejo, Perla Karina Anzures-Gómez, César Camacho-Becerra, Daniel Reyes-Ortega, Luis Humberto Torres-Pérez, Gustavo González-González
{"title":"Síndrome de la arteria de Percherón, reporte de caso clínico y revisión de la literatura","authors":"Sebastian Leon Vallejo, Perla Karina Anzures-Gómez, César Camacho-Becerra, Daniel Reyes-Ortega, Luis Humberto Torres-Pérez, Gustavo González-González","doi":"10.31157/an.v28i1.379","DOIUrl":"https://doi.org/10.31157/an.v28i1.379","url":null,"abstract":"La relevancia de este caso clínico se sustenta en que el diagnóstico oportuno de enfermedad vascular cerebral se centra en delimitar el daño una vez diagnosticado procurando en todo momento las zonas de oligohemia y penumbra que si bien es un problema de salud pública entre mayor accesibilidad a información sombre manifestaciones clínicas complejas con abordaje de exploración neurológica se podrán brindar más herramientas para los colegas mejorando cada vez más el abordaje terapéutico. \u0000 \u0000Se reporta un caso clínico inusual en cuanto a ictus al igual que se realiza una revisión de la literatura retomando que la arteria de Percherón fue descrita por primera vez en 1973 por Gérard Percherón como una variante anatómica tálamo perforante no tan infrecuente, presente en hasta el 11 al 33% de la población, regularmente subdiagnósticada en nuestro medio, recordando que la irrigación de mesencéfalo anterior e inferior y tálamo es dada por la arteria carótida interna mientras que los territorios mediales, laterales y posteriores son irrigados por el sistema vertebrobasilar. \u0000 \u0000Este síndrome talamopeduncular debido a la oclusión de la arteria de Percherón se expresa como un infarto talámico bilateral medial que generalmente cursa con la triada de alteración del estado del despierto en varios niveles incluso coma, súbita paresia parcial o total de la mirada vertical, afectación de la cognición memoria.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80961914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The effects of Memantine and MK801 on NMDA receptor switching 2B and 2A subunits in hippocampal cell culture.","authors":"E. Uribe, E. Sanchez-Mendoza","doi":"10.31157/an.v28i2.410","DOIUrl":"https://doi.org/10.31157/an.v28i2.410","url":null,"abstract":"Background: Schizophrenia (SCZ) is a severe and chronic neurodevelopmental disorder which onset begins in adolescence or early adulthood. Notwithstanding, the brain dysfunction occurs before the disease and involves the NMDA receptor switch from GluN2B to GluN2A at early neonatal period. We have recently postulated memantine (MEM) as an effective experimental treatment, which may have its root on the modulation of NMDA receptor subunit turnover during the postnatal period by preventing glutamatergic hypofunction in the maternal deprivation model of SCZ. Methods: To explore this possibility, here we have evaluated the turn-over of pre and postsynaptic glutamatergic synaptic components by using primary mouse hippocampal neurons during the synaptic formation period. Results: MK801 stimulation prevented the GluN2B to GluN2A molecular switch at 11 days in vitro (DIV). Importantly, vesicular glutamate transporter 2 (VGLUT2) was also reduced at this time point. MEM treatment reverted these effects by normalizing GluN2B, GluN2A and overexpressing VGLUT2 expression. Conclusion: Our data supports a mechanism by which behavioral abnormalities previously observed in animals after maternal deprivation may be prevented by MEM treatment by regulation of the glutamatergic synaptic molecular composition.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84242757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alejandro Díaz-Barba, R. Guerrero-Alba, J. Quintanar, Bruno A. Marichal Cancino
{"title":"Intra-striatum lodoxamide produced conditioning place preference in rats via GPR35 independent mechanisms","authors":"Alejandro Díaz-Barba, R. Guerrero-Alba, J. Quintanar, Bruno A. Marichal Cancino","doi":"10.31157/an.v28i1.382","DOIUrl":"https://doi.org/10.31157/an.v28i1.382","url":null,"abstract":"The function of the protein-coupled receptor 35 (GPR35) in the central nervous system (CNS) remains largely unknown. Due to its expression in the ventral striatum, a key area in the brain reward system, the function of GPR35 in reinforcing actions is questioning. To analyze if activation of GPR35 in the ventral striatum is related to reinforcing actions, male Wistar rats (250-300 g) received stereotaxic surgery from placing guide cannulae in the ventral striatum. Different doses of lodoxamide (a full rat-GPR35 agonist) or vehicle (DMSO 10%) were injected (intra-ventral-striatum) in the absence and during the pretreatment with ML-194 (a selective GPR35 antagonist). Lodoxamide (100 pmol) induced a significant increment in preference for the drug-conditioning chamber (p < 0.05), but not vehicle or ML-194 per se (p > 0.05). On the other hand, the pretreatment with ML-194 did not prevent lodoxamide's reinforcing effects. Thus, the reinforcing actions of lodoxamide (intra-ventral-striatum) involve mechanisms likely independent of GPR35.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89077373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. D. J. Vidal-Mayo, Uriel Guzmán Ramírez, Thierry Hernández-Gilsoul, Ashuin Kammar-García, Ayari Pérez Méndez, Javier Mancilla-Galindo
{"title":"Evaluación de la escala Status Epilepticus Severity Score (STESS) como predictor de la mortalidad intrahospitalaria en pacientes con estado: Estudio observacional retrospectivo","authors":"J. D. J. Vidal-Mayo, Uriel Guzmán Ramírez, Thierry Hernández-Gilsoul, Ashuin Kammar-García, Ayari Pérez Méndez, Javier Mancilla-Galindo","doi":"10.31157/an.v1iinpress.374","DOIUrl":"https://doi.org/10.31157/an.v1iinpress.374","url":null,"abstract":"Antecedentes. El estado epiléptico (EE) es una emergencia médica caracterizada por actividad epiléptica continua o recurrente con una alta mortalidad. La escala STESS (Status Epilepticus Severity Score) permite evaluar el pronóstico de pacientes con EE. \u0000Objetivo. Describir las características clínicas de los pacientes con EE en nuestro centro, determinar las variables asociadas a mortalidad y determinar la capacidad predictora de la escala STESS para mortalidad intrahospitalaria. \u0000Material y métodos. Estudio de cohorte retrospectivo. Se incluyeron pacientes con diagnóstico de EE durante el periodo de 2000-2020. Se aplicó la escala pronóstica STESS a todos los pacientes. Se obtuvieron datos de las características clínicas y mortalidad intrahospitalaria. Se aplicó un análisis de regresión de Cox para determinar el riesgo de mortalidad por cada punto de la escala STESS, y se calculó el área bajo la curva ROC para determinar la capacidad de discriminación de la escala. \u0000Resultados. Fueron incluidos 60 pacientes. La presentación clínica predominante fue el EE convulsivo generalizado en 51.7%, las etiologías más frecuentes fueron sintomáticas agudas (46.7%). La mortalidad hospitalaria fue 40%. El riesgo de mortalidad se incrementa un 38% por cada punto de STESS (B=0.38, HR=1.48, IC95%:1.13-1.94, p=0.005). El área bajo la curva ROC de la escala STESS fue 0.72 con un punto de corte óptimo ≥3 puntos para discriminación de mortalidad hospitalaria. \u0000Conclusiones. La escala STESS se asocia significativamente con la mortalidad intrahospitalaria y puede ser usada como predictor de los desenlaces adversos en pacientes con EE.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"296 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89226367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Julio Cesar Villalobos-Comas, E. Castillo-Tamara, Juan Manuel Montaño Lozada, Sandra Marcela Cardona Moica
{"title":"PSYCHOGENIC NONEPILEPTIC SEIZURES FOLLOWING COVID 19 VACCINE: A REPORT OF TWO CASES IN COLOMBIA","authors":"Julio Cesar Villalobos-Comas, E. Castillo-Tamara, Juan Manuel Montaño Lozada, Sandra Marcela Cardona Moica","doi":"10.31157/an.v1iinpress.389","DOIUrl":"https://doi.org/10.31157/an.v1iinpress.389","url":null,"abstract":"The novel coronavirus SARS-CoV-2 has caused the death of more than 5 million of people worldwide. Vaccination is the best strategy for controlling the pandemic with an estimated of more that 4 million of people completely vaccinated. The reported adverse events secondary to vaccines against SARS-CoV-2 are mainly mild and moderate, however, there are raising concerns about more severe and long-term outcomes, as well as neurological complications due to the vaccine. \u0000We present two cases of psychogenic non epileptiform seizures (PNES) in Colombian female patients, following vaccination against Covid-19. There is no evidence of similar adverse reactions reported on the literature and thus, we decided to report these events in order to help clinicians in recognizing early and properly all the possible neurological manifestations related to this novel approach, that aimes to eradicate the viruses which has come along with worldwide devastating consequences in terms of health and social issues.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82068267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. S. Vargas-Cañas, Eunice Martínez-Jiménez, JA Galnares-Olalde, Francisca Fernández-Valverde, Adib Jorge de Saráchaga, Anna Lisette Bazán-Rodríguez, E. Benítez-Alonso, J. López-Hernández
{"title":"Miopatías genéticas en adultos: experiencia de un centro de tercer nivel en México.","authors":"E. S. Vargas-Cañas, Eunice Martínez-Jiménez, JA Galnares-Olalde, Francisca Fernández-Valverde, Adib Jorge de Saráchaga, Anna Lisette Bazán-Rodríguez, E. Benítez-Alonso, J. López-Hernández","doi":"10.31157/an.v1iinpress.403","DOIUrl":"https://doi.org/10.31157/an.v1iinpress.403","url":null,"abstract":"Antecedentes: las miopatías genéticas en el adulto son infrecuentes y representan un reto diagnóstico. Con el advenimiento de paneles de secuenciación de siguiente generación, se han catalogado molecularmente estas enfermedades, permitiendo un mejor abordaje, seguimiento, pronóstico y tratamiento. \u0000Objetivo: describir la frecuencia de los principales fenotipos clínicos de miopatía de origen genético en adultos en un centro de tercer nivel en México. \u0000Metodología: se realizó un estudio transversal, se incluyeron a todos los pacientes con diagnóstico clínico de miopatía genética de una clínica de enfermedades neuromusculares del 2017 a 2021. Se recabaron características clínicas y paraclínicas al momento del diagnóstico, reporte de biopsia muscular y estudio genético. \u0000Resultados: se incluyeron 85 pacientes. La media de edad de inicio de síntomas fue a los 27, con un retraso en el diagnóstico de 7 años. Los principales fenotipos clínicos son: distrofia de cinturas (28%), distrofia miotónica tipo 1 (26.8%), miopatía congénita (17.1%), miopatía metabólica (9.8%), oculofaríngea (7.3%) y facioescapulohumeral (6.1%). \u0000Conclusión: las principales miopatías de origen genético en nuestra población son la distrofia miotónica tipo 1 y la distrofia de cinturas. El reconocimiento de ellas es importante para la apropiada consejería, seguimiento, pronóstico y tratamiento de potenciales condiciones asociadas. \u0000 ","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"116 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73900800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Ramírez-Bermúdez, J. Galnares-Olalde, Alexis García-Sarreón, Karla Rodríguez-Jiménez, Sara Mireles, Victoria Martínez-Ángeles, N. Kerik-Rotenberg, Iván Meneses-Díaz, E. A. Cortés-Mancera, Fabio Andrés Sinisterra-Solis, E. S. Vargas-Cañas, J. C. López-Hernández
{"title":"Is there an autoimmune encephalitis-like brain metabolism pattern in patients with Bickerstaff brainstem encephalitis?","authors":"J. Ramírez-Bermúdez, J. Galnares-Olalde, Alexis García-Sarreón, Karla Rodríguez-Jiménez, Sara Mireles, Victoria Martínez-Ángeles, N. Kerik-Rotenberg, Iván Meneses-Díaz, E. A. Cortés-Mancera, Fabio Andrés Sinisterra-Solis, E. S. Vargas-Cañas, J. C. López-Hernández","doi":"10.31157/an.v1iinpress.411","DOIUrl":"https://doi.org/10.31157/an.v1iinpress.411","url":null,"abstract":"Abstract: \u0000Background: Brain 18 FDG PET is very useful in the diagnosis of autoimmune encephalitides against post-synaptic receptors. However, little is known about the metabolic changes in other autoimmune encephalitides, such as Bickerstaff stem encephalitis (BBE). \u0000Objective: to report the case of a patient with BBE with an 18 FDG PET study and to review the literature. \u0000Results: A 20-year-old man with no relevant history presented to the emergency department due to a clinical picture of 7 days of evolution, characterized by non-painful distal paresthesias in the 4 extremities, diplopia, instability on gait and dysphagia. On the day of his hospital stay, he presented alterations in his awake state. The clinical diagnosis of Bikerstaff's stem encephalitis was made. In his paraclinical tests, the cerebrospinal fluid was normal. He received treatment with human immunoglobulin (2 grams/kg) for 5 days. An 18 FDG PET study reported hypermetabolism in the putamen and bilateral caudate nucleus and bilateral occipital hypometabolism. \u0000Conclusion: brain 18-FDG PET may be a subrogate marker for understanding CNS compromise in BBE.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"185 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72706985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Renato García-González, H. Sandoval, Rakesh Mishra, Antonio Malvaso, C. Alarcon-Ruiz, C. Ríos, I. Pérez-Neri
{"title":"Mechanisms of nerve regeneration for drug-resistant epilepsy: scoping review protocol","authors":"Renato García-González, H. Sandoval, Rakesh Mishra, Antonio Malvaso, C. Alarcon-Ruiz, C. Ríos, I. Pérez-Neri","doi":"10.31157/an.v1iinpress.363","DOIUrl":"https://doi.org/10.31157/an.v1iinpress.363","url":null,"abstract":"Drug-resistant epilepsy is defined as “the failure of adequate trials of two tolerated, appropriately chosen and used antiepileptic drug schedules”, 30-40% of the patients with epilepsy present this condition decreasing their quality-of-life and increasing mortality risk. Current literature suggests therapeutic alternatives such as surgery or neurostimulation, but they show some limitations. Unless degenerative progression is prevented and the regulatory role of interneurons is restored, patients with drug-resistant epilepsy may not reach seizure freedom. Ongoing studies have developed techniques to manoeuvre signalling pathways for neural regeneration in the central nervous system, this is defined as “the regrowth or repair of nervous tissues, cells or cell products”. This scoping review protocol aims to evaluate the therapeutic potential of modulating nerve regeneration pathways for patients with drug-resistant epilepsy. Published studies (all publication types) will be retrieved from Web of Science, PubMed, Scopus, EBSCOhost, Ovid, and Google Scholar, from database inception to present. Studies describing patients or experimental models of drug-resistant epilepsy receiving any treatment modulating nerve regeneration pathways will be included. Studies in languages different than Spanish or English that could not be appropriately translated or whose full-text files could not be retrieved after all efforts made will be excluded. Studies will be assessed for eligibility by two independent researchers. Results will be presented in tables. A narrative synthesis will be provided.","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"242 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76561723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Meet the Editor: Luis Rafael Moscote-Salazar","authors":"L. Moscote-Salazar","doi":"10.31157/an.v1iinpress.377","DOIUrl":"https://doi.org/10.31157/an.v1iinpress.377","url":null,"abstract":"","PeriodicalId":34902,"journal":{"name":"Archivos de Neurociencias","volume":"156 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86315761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}