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Gago-Veiga AB, Lopez-Alcaide N, Quintas S, Fernández Lázaro I, Casas-Limón J, Calle C, Latorre G, González-García N, Porta-Etessam J, Rodriguez-Vico J, Jaimes A, Gómez García A, García-Azorín D, Guerrero-Peral ÁL, Sierra Á, Lozano Ros A, Sánchez-Soblechero A, Díaz-de-Teran J, Membrilla JA, Treviño C, Gonzalez-Martinez A. Evaluation of the concomitant use of prophylactic treatments in patients with migraine under anti-calcitonin gene-related peptide therapies: The PREVENAC study. Eur J Neurol 2024; 31:e16215. [PMID: 38323742 DOI: 10.1111/ene.16215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 12/23/2023] [Accepted: 01/04/2024] [Indexed: 02/08/2024]
Abstract
BACKGROUND AND PURPOSE Anti-calcitonin gene-related peptide (CGRP) therapies are recent preventive therapies approved for both episodic and chronic migraine. One of the measures of effectiveness is the withdrawal of other preventive treatments. The objective of this study is to quantify the impact of anti-CGRP drugs in concomitant preventive treatment in patients with migraine. METHODS This was an observational, retrospective, multicenter cohort study with patients from nine national headache units. Patients with migraine undergoing treatment for at least 6 months with anti-CGRP antibodies, who were initially associated with some preventive treatment (oral and/or onabotulinumtoxinA) were included. Demographic and clinical variables were collected, as well as variables related to headache. Differences according to withdrawal or nonwithdrawal were evaluated. RESULTS A total of 408 patients were included, 86.52% women, 48.79 (SD = 1.46) years old. Preventive treatment was withdrawn in 43.87% (179/408), 20.83% partially and 23.04% totally. In 27.45% (112/408), it was maintained exclusively due to comorbidity and in 28.6% (117/408) due to partial efficacy. The most frequent time of withdrawal was between 3 and 5 months after the start of treatment. The baseline characteristics associated with nonwithdrawal were comorbidities: insomnia, hypertension and obesity, chronic migraine, and medication overuse. In the multivariate analysis, the absence of high blood pressure, a greater number of preventive treatments at the start, and a lower number of migraine days/month after anti-CGRP treatment were independently associated with withdrawal of the treatment (p < 0.05). CONCLUSIONS Anti-CGRP antibodies allow the withdrawal of associated preventive treatment in a significant percentage of patients, which supports its effectiveness in real-life conditions.
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Affiliation(s)
- Ana Beatriz Gago-Veiga
- Headache Unit, Hospital Universitario de la Princesa & Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Madrid, Spain
| | - Noelia Lopez-Alcaide
- Headache Unit, Hospital Universitario de la Princesa & Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Madrid, Spain
| | - Sonia Quintas
- Headache Unit, Hospital Universitario de la Princesa & Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Madrid, Spain
| | - Iris Fernández Lázaro
- Headache Unit, Hospital Universitario de la Princesa & Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Madrid, Spain
| | - Javier Casas-Limón
- Headache Unit, Hospital Universitario Fundación Alcorcón, Alcorcón, Spain
| | - Carlos Calle
- Headache Unit, Hospital de Fuenlabrada, Madrid, Spain
| | | | | | | | | | - Alex Jaimes
- Headache Unit, Hospital Fundación Jiménez Díaz, Madrid, Spain
| | | | - David García-Azorín
- Headache Unit, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
- Department of Medicine, Universidad de Valladolid, Valladolid, Spain
| | - Ángel Luis Guerrero-Peral
- Headache Unit, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
- Department of Medicine, Universidad de Valladolid, Valladolid, Spain
| | - Álvaro Sierra
- Headache Unit, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | | | | | | | | | - Cristina Treviño
- Headache Unit, Hospital Clínico Universitario de la Paz, Madrid, Spain
| | - Alicia Gonzalez-Martinez
- Headache Unit, Hospital Universitario de la Princesa & Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Madrid, Spain
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Jaimes A, Gómez A, Pajares O, Rodríguez-Vico J. OnabotulinumtoxinA as a promising treatment for primary trochlear headache: A retrospective case series. Headache 2024. [PMID: 38533675 DOI: 10.1111/head.14699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/21/2024] [Accepted: 03/05/2024] [Indexed: 03/28/2024]
Abstract
OBJECTIVES To report the efficacy of onabotulinumtoxinA (BoNTA) injections in relieving pain in patients with primary trochlear headache (PRTH). METHODS Examination of medical records for patients diagnosed with PRTH according to the International Classification of Headache Disorders, 3rd edition criteria and treated with BoNTA. Data were collected for variables related to pain relief, duration of effectiveness, and adverse effects. RESULTS Six patients were included in the study. All had previously undergone standard care interventions, including infiltrations or oral treatments, yet experienced treatment failure or symptom recurrence. All patients received 20 units of BoNTA, administered in the corrugator and procerus muscles. Subsequent to the BoNTA injections, all six patients reported substantial pain relief, with five achieving complete remission of symptoms. The analgesic effect persisted for a duration of 3 months. No adverse events were reported in any of the cases. CONCLUSIONS Our case series presents the first evidence of the potential of BoNTA as a safe and effective treatment option for PRTH. From a clinical standpoint, having a safer alternative is of paramount significance for patients with limited treatment options, such as those with PRTH. Further research is warranted to validate these findings and explore the long-term efficacy of BoNTA in PRTH management.
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Affiliation(s)
- Alex Jaimes
- Headache Unit, Department of Neurology, Fundación Jiménez Díaz University Hospital, Madrid, Spain
- School of Medicine, Autonomous University of Madrid, Madrid, Spain
| | - Andrea Gómez
- Headache Unit, Department of Neurology, Fundación Jiménez Díaz University Hospital, Madrid, Spain
| | - Olga Pajares
- Headache Unit, Department of Neurology, Fundación Jiménez Díaz University Hospital, Madrid, Spain
| | - Jaime Rodríguez-Vico
- Headache Unit, Department of Neurology, Fundación Jiménez Díaz University Hospital, Madrid, Spain
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Gonzalez-Martinez A, Sanz-García A, García-Azorín D, Rodríguez-Vico J, Jaimes A, Gómez García A, Casas-Limón J, Díaz de Terán J, Sastre-Real M, Membrilla J, Latorre G, Calle de Miguel C, Gil Luque S, Trevino-Peinado C, Quintas S, Heredia P, Echavarría-Íñiguez A, Guerrero-Peral Á, Sierra Á, González-García N, Porta-Etessam J, Gago-Veiga AB. Effectiveness, tolerability, and response predictors of preventive anti-CGRP mAbs for migraine in patients over 65 years old: a multicenter real-world case-control study. Pain Med 2024; 25:194-202. [PMID: 37847661 DOI: 10.1093/pm/pnad141] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/19/2023] [Accepted: 10/08/2023] [Indexed: 10/19/2023]
Abstract
OBJECTIVE To evaluate clinical characteristics, effectiveness, and tolerability of preventive anti- calcitonin gene-related peptide (CGRP) monoclonal antibodies (mAbs) in the elderly. Anti-CGRP mAbs have demonstrated efficacy and safety in patients with migraine although there is limited information regarding the elderly. DESIGN We performed a multicenter case-control study of cases (patients over 65 years old) and controls (sex-matched patients under 55 years old) with migraine receiving anti-CGRP mAbs. METHODS We included the demographic characteristics, effectiveness-reduction in the number of monthly headache days (MHD) and monthly migraine days (MMD), 30%, 50%, and 75% responder rates-and treatment emergent adverse events (TEAEs). The primary endpoint was the 50% response rate regarding MHD at weeks 20-24; exploratory 50% response predictors in the elderly were evaluated. RESULTS In total, 228 patients were included: 114 cases , 114 controls-. Among cases 84.2% (96/114) were women, 79.8% (91/114) CM; mean age of cases 70.1 years old (range: 66-86); mean age of controls was 42.9 years old(range: 38-49). Cases had a higher percentage of vascular risk factors (P < .05),older age of onset (P < .001) and more reported prior preventive treatments (P < .001). Regarding effectiveness in cases, 50% response rate was achieved by 57.5% (42/73) at 20-24 weeks, with lower reduction in the MHD at 8-12 weeks (5 [7.2], 8 [9.1]; P = .001) and a higher reduction in MMD at 20-24 weeks (10.7 [9.1], 9.2 [7.7]; P = .04) compared to the control group. The percentage of TEAEs was similar in the 2 groups. Diagnosis of episodic migraine (EM) (P = .03) and lower number of MHD at baseline (P = .001) were associated with a 50% response in the elderly in univariate analysis. CONCLUSIONS Our study provides real world evidence of effectiveness and safety of anti-CGRP mAbs for migraine in patients without upper age-limit and possible predictors of anti-CGRP response in the elderly.
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Affiliation(s)
- Alicia Gonzalez-Martinez
- Headache Unit, Neurology Department, Hospital Universitario de la Princesa, Madrid, Madrid 28006, Spain
- Department of Medicine, Universidad Autónoma de Madrid, Madrid, Madrid 28049, Spain
| | - Ancor Sanz-García
- Data Analysis Unit, Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Hospital Universitario de la Princesa, Madrid, Madrid 28006, Spain
| | - David García-Azorín
- Headache Unit, Neurology Department, Hospital Clínico Universitario de Valladolid, Valladolid, Castilla y León 47003, Spain
- Department of Medicine, University of Valladolid, Valladolid, Castilla y León 47003, Spain
| | - Jaime Rodríguez-Vico
- Headache Unit, Neurology Department, Hospital Universitario Fundación Jiménez Díaz, Madrid, Madrid 28040, Spain
| | - Alex Jaimes
- Headache Unit, Neurology Department, Hospital Universitario Fundación Jiménez Díaz, Madrid, Madrid 28040, Spain
| | - Andrea Gómez García
- Headache Unit, Neurology Department, Hospital Universitario Fundación Jiménez Díaz, Madrid, Madrid 28040, Spain
| | - Javier Casas-Limón
- Headache Unit, Neurology Department, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid 28922, Spain
| | - Javier Díaz de Terán
- Headache Unit, Neurology Department, Hospital Universitario La Paz, Madrid, Madrid 28046, Spain
| | - María Sastre-Real
- Headache Unit, Neurology Department, Hospital Universitario La Paz, Madrid, Madrid 28046, Spain
| | - Javier Membrilla
- Headache Unit, Neurology Department, Hospital Universitario La Paz, Madrid, Madrid 28046, Spain
| | - Germán Latorre
- Headache Unit, Neurology Department, Hospital Universitario de Fuenlabrada, Madrid, Madrid 28942, Spain
| | - Carlos Calle de Miguel
- Headache Unit, Neurology Department, Hospital Universitario de Fuenlabrada, Madrid, Madrid 28942, Spain
| | - Sendoa Gil Luque
- Headache Unit, Neurology Department, Hospital Universitario de Burgos, Burgos, Castilla y León 09006, Spain
| | - Cristina Trevino-Peinado
- Headache Unit, Neurology Department, Hospital Universitario Severo Ochoa, Leganés, Madrid 28914, Spain
| | - Sonia Quintas
- Headache Unit, Neurology Department, Hospital Universitario de la Princesa, Madrid, Madrid 28006, Spain
| | - Patricia Heredia
- Headache Unit, Neurology Department, Hospital Universitario de la Princesa, Madrid, Madrid 28006, Spain
| | - Ana Echavarría-Íñiguez
- Headache Unit, Neurology Department, Hospital Clínico Universitario de Valladolid, Valladolid, Castilla y León 47003, Spain
| | - Ángel Guerrero-Peral
- Headache Unit, Neurology Department, Hospital Clínico Universitario de Valladolid, Valladolid, Castilla y León 47003, Spain
- Department of Medicine, University of Valladolid, Valladolid, Castilla y León 47003, Spain
| | - Álvaro Sierra
- Headache Unit, Neurology Department, Hospital Clínico Universitario de Valladolid, Valladolid, Castilla y León 47003, Spain
| | - Nuria González-García
- Headache Unit, Neurology Department, Hospital Clínico San Carlos, Madrid, Madrid 28040, Spain
| | - Jesús Porta-Etessam
- Headache Unit, Neurology Department, Hospital Clínico San Carlos, Madrid, Madrid 28040, Spain
| | - Ana Beatriz Gago-Veiga
- Headache Unit, Neurology Department, Hospital Universitario de la Princesa, Madrid, Madrid 28006, Spain
- Department of Medicine, Universidad Autónoma de Madrid, Madrid, Madrid 28049, Spain
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Jaimes A, Gómez A, Pajares O, Rodríguez-Vico J. Dual therapy with Erenumab and onabotulinumtoxinA: No synergistic effect in chronic migraine: A retrospective cohort study. Pain Pract 2022; 23:349-358. [PMID: 36507609 DOI: 10.1111/papr.13196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 10/27/2022] [Accepted: 11/28/2022] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To assess whether dual therapy with erenumab and onabotulinumtoxinA (BoNTA) was more effective than erenumab alone in chronic migraine. BACKGROUND Calcitonin gene-related peptide (CGRP) is crucial in migraine. Erenumab binds to the canonical CGRP receptor in Aδ-fibers, and BoNTA prevents the release of CGRP from meningeal and extracranial C-fibers. It is still unknown whether dual therapy is more effective. METHODS This was a retrospective study in a Headache Unit. There was a thorough revision of charts of patients receiving erenumab from December 2019 to March 2021. The cohort was divided into three groups according to BoNTA at the start of erenumab: (1) WBT: were on BoNTA and maintained it as dual therapy; (2) WoBT: were on BoNTA and discontinued; (3) NoBT: were not on BoNTA. Primary endpoint was reduction in monthly headache days (MHD) at 12 weeks. Secondary endpoints were percent improvement and ≥50% reduction in MHD. RESULTS Of 237 charts reviewed, 187 met the inclusion criteria. Seventy-three (39%) were included in WBT, 44 (23.5%) in WoBT, and 70 (37.4%) in NoBT. The reduction in MHD was less with dual therapy [WBT 4.7 ± 7.68, WoBT 5.12 ± 7.98 (p = 0.80), NoBT 8.21 ± 7.84 p = 0.009]. The percentage of improvement was higher in the erenumab-alone group [NoBT 35%, WoBT 22.3% (p = 0.92), WBT 21.7% (p = 0.001)]. The probability of achieving a ≥ 50% reduction in MHD was lower in WBT than in WoBT (OR 0.66, p = 0.35) and in the NoBT group (OR 0.57, p = 0.14). CONCLUSIONS Our findings suggest that dual therapy is less effective than erenumab alone. However, since the design has multiple limitations, further prospective studies are required to validate these data.
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Affiliation(s)
- Alex Jaimes
- Headache Unit, Department of Neurology, Fundación Jimenez Diaz University Hospital, Madrid, Spain
| | - Andrea Gómez
- Headache Unit, Department of Neurology, Fundación Jimenez Diaz University Hospital, Madrid, Spain
| | - Olga Pajares
- Headache Unit, Department of Neurology, Fundación Jimenez Diaz University Hospital, Madrid, Spain
| | - Jaime Rodríguez-Vico
- Headache Unit, Department of Neurology, Fundación Jimenez Diaz University Hospital, Madrid, Spain
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Gonzalez-Martinez A, Pagán J, Sanz-García A, García-Azorín D, Rodriguez Vico JS, Jaimes A, Gómez García A, Díaz de Terán J, González-García N, Quintas S, Belascoaín R, Casas Limón J, Latorre G, Calle de Miguel C, Sierra Á, Guerrero-Peral ÁL, Trevino-Peinado C, Gago-Veiga AB. Machine-learning based approach to predict anti-CGRP response in patients with migraine: multicenter Spanish study. Eur J Neurol 2022; 29:3102-3111. [PMID: 35726393 DOI: 10.1111/ene.15458] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 06/13/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND To date, several variables have been associated with anti-CGRP receptor or ligand-antibody response with disparate results. Our objective is to determine whether machine learning (ML)-based models can predict 6, 9 and 12 months response to anti-CGRP receptor or ligand therapies among migraine patients. METHODS We performed a multicenter analysis of a prospectively collected data cohort of patients with migraine receiving anti-CGRP therapies. Demographic and clinical variables were collected. Response rate defined in the 30% to 50% range -or at least 30%-, in the 50% to 75% range -or at least 50%-, and response rate over 75% reduction in the number of headache days per month at 6, 9 and 12 months. A sequential forward feature selector was used for variable selection and ML-based predictive models response to anti-CGRP therapies at 6, 9 and 12 months, with models' accuracy not less than 70%, were generated. RESULTS A total of 712 patients were included, 93% women, aged 48 years (SD=11.7). Eighty-three percent had chronic migraine. ML models using headache days/month, migraine days/month and HIT-6 variables yielded predictions with a F1 score range of 0.70-0.97 and AUC (area under the receiver operating curve) score range of 0.87-0.98. SHAP (SHapley Additive exPlanations) summary plots and dependence plots were generated to evaluate the relevance of the factors associated with the prediction of the above-mentioned response rates. CONCLUSIONS According to our study, ML models can predict anti-CGRP response at 6, 9 and 12 months. This study provides a predictive tool to be used in a real-world setting.
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Affiliation(s)
- Alicia Gonzalez-Martinez
- Headache Unit, Neurology Department, Hospital Universitario de la Princesa & Instituto de Investigación Sanitaria La Princesa, Madrid, Spain
| | - Josué Pagán
- Universidad Politécnica de Madrid and Center for Computational Simulation of Universidad Politécnica de Madrid, Madrid, Spain
| | - Ancor Sanz-García
- Headache Unit, Neurology Department, Hospital Universitario de la Princesa & Instituto de Investigación Sanitaria La Princesa, Madrid, Spain
| | - David García-Azorín
- Headache Unit, Neurology Department, Department of Medicine, University of Valladolid, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | | | - Alex Jaimes
- Headache Unit, Neurology Department, Fundación Jiménez Díaz, Madrid, Spain
| | | | - Javier Díaz de Terán
- Headache Unit, Neurology Department, Hospital Universitario La Paz, Madrid, Spain
| | - Nuria González-García
- Headache Unit, Neurology Department, Hospital Universitario Clínico San Carlos, Madrid, Spain
| | - Sonia Quintas
- Headache Unit, Neurology Department, Hospital Universitario de la Princesa & Instituto de Investigación Sanitaria La Princesa, Madrid, Spain
| | - Rocio Belascoaín
- Headache Unit, Neurology Department, Hospital Universitario de la Princesa & Instituto de Investigación Sanitaria La Princesa, Madrid, Spain
| | - Javier Casas Limón
- Headache Unit Neurology Department, Hospital Universitario Fundación de Alcorcón, Alcorcón, Spain
| | - Germán Latorre
- Headache Unit, Neurology Department, Hospital Universitario de Fuenlabrada, Madrid, Spain
| | - Carlos Calle de Miguel
- Headache Unit, Neurology Department, Hospital Universitario de Fuenlabrada, Madrid, Spain
| | - Álvaro Sierra
- Headache Unit, Neurology Department, Department of Medicine, University of Valladolid, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - Ángel Luis Guerrero-Peral
- Headache Unit, Neurology Department, Department of Medicine, University of Valladolid, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | | | - Ana Beatriz Gago-Veiga
- Headache Unit, Neurology Department, Hospital Universitario de la Princesa & Instituto de Investigación Sanitaria La Princesa, Madrid, Spain
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Palacios-Cruz L, Galicia F, Arias-Caballero A, Cárdenas Godínez EM, Vásquez-Medina J, Mayer-Villa P, Feria Aranda M, Cruz-Fuentes C, De la Peña F, Ulloa Flores RE, Rosetti M, Reyes-Zamorano E, Nafate O, Fragoso A, Ortiz S, Jaimes A, Garza Gallegos K, Lara-Muñoz MC. Comparison of clinical and cognitive characteristics of a Mexican adult clinical population with and without ADHD. sm 2018. [DOI: 10.17711/sm.0185-3325.2018.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Introduction. Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder affecting approximately 5% of the world population, with symptoms that may persist into adulthood. Despite the findings on the clinical course of this disorder, information regarding comorbidity patterns, psychosocial and executive functioning in adult life in those with and without ADHD in Latin American samples is scarce. Objective. The aim of this study is to compare the comorbidity pattern, psychosocial, and executive functioning of adults with and without ADHD from a clinical sample. Method. One hundred and fifty-one patients between 20 and 45 years, with screened positively on ASRS-V1.1, were invited to continue an evaluation process as part of clinical research program (PROMETEO): 1) K-SADS-PL Mx interview, 2) MINI-Plus interview, ASRS-V1-1 18 item version, BRIEF self-reported questionnaire, SCQA-ADHD, and 3) Individual case review by clinical expert in ADHD. Results. Individuals in the ADHD group had a higher average of comorbid disorders (2.5 SD 1.1 vs. 1.3 SD 1.0 respectively, F = .439; t = -6.621; df = 149; p < .001), more likelihood of procrastinating (OR = 6.5; 95% CI[2.6, 16.2]; z = 4.0) and were more likely to present difficulties in both the behavior regulation index (OR = 104.9; 95% CI[31.8, 345.7]; z = 7.65) and the metacognitive index (OR = 94.79; 95% CI[29.10, 308.76]; z = 7.56) compared to the non-ADHD group, regardless of gender. Discussion and conclusions. Our results indicate that the ADHD adult group presented with more comorbidity, and worse psychosocial and executive functioning than non-ADHD adults.
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Jaimes A, García-Sáez R, Gutiérrez-Viedma Á, Cuadrado ML. Case report: Wallenberg’s syndrome, a possible cause of symptomatic epicrania fugax. Cephalalgia 2017; 38:1203-1206. [DOI: 10.1177/0333102417726334] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background Epicrania fugax has been described as a primary headache. Nevertheless, a symptomatic form was recently found in a patient with a skull base meningioma abutting the trigeminal nerve. Here we report on a patient with facial pain with the features of epicrania fugax occurring after Wallenberg’s syndrome. Case report A 53-year-old man suffered a right-sided dorsolateral medullary ischaemic stroke. Nine months later, he presented with brief electric shock-like paroxysms of pain stemming from the right eye and radiating to the ipsilateral forehead, the temple or the cheek in a zigzag trajectory. Some episodes were accompanied by ipsilateral conjunctival injection and eyelid oedema. Treatment with eslicarbazepine abolished the pain. Conclusion A pain with the features of epicrania fugax may be associated with medullary lesions. This finding suggests that the central trigeminal pathways and/or the spinal trigeminal nucleus may play an important role in the pathophysiology of this type of pain.
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Affiliation(s)
- Alex Jaimes
- Department of Neurology, Hospital Clínico San Carlos, Madrid, Spain
- Department of Neurology, Fundación Jiménez Díaz, Madrid, Spain
| | | | - Álvaro Gutiérrez-Viedma
- Department of Neurology, Hospital Clínico San Carlos, Madrid, Spain
- Department of Medicine, School of Medicine, Universidad Complutense, Madrid, Spain
| | - María-Luz Cuadrado
- Department of Neurology, Hospital Clínico San Carlos, Madrid, Spain
- Department of Medicine, School of Medicine, Universidad Complutense, Madrid, Spain
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Castillo J, Hung J, Rodriguez M, Bastidas E, Laboren I, Jaimes A. LED fluorescence spectroscopy for direct determination of monoamine oxidase B inactivation. Anal Biochem 2005; 343:293-8. [PMID: 16004952 DOI: 10.1016/j.ab.2005.05.027] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2005] [Revised: 05/23/2005] [Accepted: 05/24/2005] [Indexed: 11/25/2022]
Abstract
In this work, we report an alternative assay for the determination of the inhibitory effect on monoamine oxidase B (MAO-B) activity of probe compounds. Enzyme MAO-B exhibits fluorescence emissions when it is excited at 412 nm. Using an inexpensive blue LED-like excitation source, we measured the quenching of fluorescence intensity of MAO-B enzyme during the reaction with inhibitors. The applicability of the procedure is demonstrated by assays with l-deprenyl and berberine as inhibitors through the use of fluorescence studies. The IC(50) values of l-deprenyl and berberine were 0.04 and 90 microM, respectively. The K(I) values were 0.020 and 47 microM for l-deprenyl and berberine, respectively. These IC(50) and K(I) values were similar to the values obtained with a standard method. These results demonstrate the feasibility of this method as an alternative to follow the inhibitory effect on MAO-B.
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Affiliation(s)
- J Castillo
- Escuela de Química, Universidad Central de Venezuela, Los Chaguaramos, Caracas 1080A, Venezuela.
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