25 results on '"Arcadi FA"'
Search Results
2. Urinary excretion of trans,trans-muconic acid in streptozotocin-induced diabetic rats exposed to benzene
- Author
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Arcadi, Fa, Catania, Stefania, Costa, Chiara, Imperatore, C, Pupo, C, and Salemi, M.
- Published
- 1997
3. Microvascular effect of calpain inhibitor II after experimental subarachnoid hemorrage
- Author
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Salemi, M, Arcadi, Fa, Catania, Stefania, Germano', Antonino Francesco, Pupo, C, and Imperatore, C.
- Published
- 1997
4. Neuroprotective activity of fructose-1,6-bisphosphate following transient forebrain ischemia in the mongolian gerbil
- Author
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Trimarchi, Gr, Arcadi, Fa, Deluca, R, Imperatore, C, Santoro, Giuseppe, Trimarchi, F, and Costa, G.
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Male ,Lumen (anatomy) ,Hippocampus ,cerebral ischemia ,Glibenclamide ,chemistry.chemical_compound ,Prosencephalon ,Ureter ,Nifedipine ,neuronal death ,fructose-1 ,6-bisphosphate ,Fructosediphosphates ,medicine ,Animals ,Channel blocker ,Peristalsis ,Pharmacology ,Cell Death ,Anatomy ,Cannula ,Survival Rate ,medicine.anatomical_structure ,chemistry ,Ischemic Attack, Transient ,Gerbillinae ,Cromakalim ,medicine.drug - Abstract
We examined the protective activity of fructose-1,6-bisphosphate (FBP) on mortality and delayed hippocampal cell death induced by transient cerebral ischemia in the Mongolian gerbil. Forebrain ischemia was produced by bilaterally occluding the common carotid arteries for 15 min using microaneurysm clips; then the blood supply to the brain was restored. The number of survivors was counted for 8 days, and the histopathological damage in the CA1 region of the hippocampus was scored according to the semiquantitative scale of Rudolphi and colleagues. When injected 15 min before the ischemic insult, FBP (100 and 333 mg/kg, i.v.) significantly reduced the rate of mortality during the 8-day observation period. Equivalent doses of fructose and fructose monophosphate did not improve survival, and neither did low doses (33 mg/kg) of FBP. FBP also produced a significant degree of protection against the CA1 pyramidal cell loss in comparison with its vehicle (distilled water). Conversely, when we administered the compound, at the same dose, 15 min after the release of the arterial occlusion, we observed neither a significant reduction of mortality nor significant protection against hippocampal CA1 pyramidal cell loss. These results suggest that FBP possesses salutary properties against the damages induced by transient cerebral ischemia, although they are evident only when the compound is administered before the resolution of the ischemic injury.
- Published
- 1993
5. Applications of Near Infrared Spectroscopy and Mirror Therapy for Upper Limb Rehabilitation in Post-Stroke Patients: A Brain Plasticity Pilot Study.
- Author
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Formica C, De Salvo S, Muscarà N, Bonanno L, Arcadi FA, Lo Buono V, Acri G, Quartarone A, and Marino S
- Abstract
Objectives: The aim of this study was to identify the neural pattern activation during mirror therapy (MT) and explore any cortical reorganization and reducing asymmetry of hemispheric activity for upper limb rehabilitation in post-stroke patients. Methods: A box containing a mirror was placed between the arms of the patients to create the illusion of normal motion in the affected limb by reflecting the image of the unaffected limb in motion. We measured the cerebral hemodynamic response using near-infrared spectroscopy (NIRS). We enrolled ten right-handed stroke patients. They observed healthy hand movements in the mirror (MT condition) while performing various tasks (MT condition), and then repeated the same tasks with the mirror covered (N-MT condition). Results: Significant activation of some brain areas was observed in the right and left hemiparesis groups for the MT condition, while lower levels of activation were observed for the N-MT condition. The results showed significant differences in hemodynamic response based on oxygenated (HbO) concentrations between MT and N-MT conditions across all tasks in sensorimotor areas. These neural circuits were activated despite the motor areas being affected by the brain injury, indicating that the reflection of movement in the mirror helped to activate them. Conclusions: These results suggest that MT promotes cortical activations of sensory motor areas in affected and non-affected brain sides in subacute post-stroke patients, and it encourages the use of these tools in clinical practice.
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- 2024
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6. Cervical Artery Dissection and Patent Foramen Ovale in Juvenile Stroke: Causality or Casuality? A Familiar Case Report.
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Arcadi FA, Morabito R, Marino S, Formica C, and Calabrò RS
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- Young Adult, Humans, Risk Factors, Arteries, Foramen Ovale, Patent complications, Embolism, Paradoxical complications, Stroke complications, Ischemic Stroke complications
- Abstract
Cervical artery dissection (CAD) and Patent Foramen Ovale (PFO) are important causes of stroke in young patients. Although PFO is considered an independent risk factor for cerebral infarction in young adults with cryptogenic stroke, other concomitant causes may be necessary to cause brain injury. PFO could be a predisposing factor of stroke through several mechanisms including paradoxical embolism from a venous source, thrombus formation in atrial septum, or atrial arrhythmias causing cerebral thromboembolism. The pathophysiology of CAD is poorly understood and includes both constitutional and environmental factors. A causal association is often difficult to establish, as other predisposing factors may also play a role in CAD etiopathogenesis. We present a family with ischemic stroke (a father and his three daughters), in which the two different stroke causes are present. We hypothesized that a paradoxical embolism caused by PFO, associated with arterial wall disease, in the presence of a procoagulant state, could produce arterial dissection and then stroke.
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- 2023
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7. Sexual Dysfunctions in Females with Parkinson's Disease: A Cross-Sectional Study with a Psycho-Endocrinological Perspective.
- Author
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De Luca R, Bonanno M, Morini E, Marra A, Arcadi FA, Quartarone A, and Calabrò RS
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- Humans, Female, Cross-Sectional Studies, Quality of Life, Testosterone, Cholecalciferol, Parkinson Disease complications, Sexual Dysfunction, Physiological etiology
- Abstract
Background and Objectives : Normal human sexual functioning is a complex integration of an intact neuroanatomic substrate, vascular supply, a balanced hormonal profile, and a predominance of excitatory over inhibitory psychological mechanisms. However, sexual functioning in Parkinson's disease (PD) is often overlooked in clinical practice, especially in female patients. Materials and Methods : In this cross-sectional study, we have investigated the frequency of sexual dysfunction and the possible correlation with psycho-endocrinological factors in a sample of women with idiopathic PD. Patients were assessed using a semi-structured sexual interview, in addition to psychometric tools, including the Hamilton Rating Scale for Anxiety and for Depression and the Coping Orientation to the Problems Experiences-New Italian Version. Specific blood tests, including testosterone, follicle-stimulating hormone (FSH), luteinizing hormone (LH), estrogen E2, prolactin (PRL), and vitamin D3 were also evaluated. Results : Our results reported a statistical difference in sexual intercourse frequency before and after the onset of PD ( p < 0.001). The percentage of women who complained about reduced sexual desire increased after diagnosis (52.7%) compared to the period before the onset of the illness (36.8%). The endocrinological profile in females with PD revealed statistically significant differences regarding testosterone ( p < 0.0006), estradiol ( p < 0.00), vitamin D3 ( p < 0.006), and calcium (0.002). Depression (44% characterized by perceived feelings of anger and frustration during sexual intercourse) and anxiety symptoms (29.5% reported feelings of fear and anxiety for not satisfying the partner) with abnormal coping strategies (48.14% experienced feelings of anger and intolerance) were also found to be statistically significant. This study showed a high frequency of sexual dysfunction in female patients with PD, which correlated with sexual hormone abnormalities, mood/anxiety, and coping strategies alterations. This supports the idea that there is a need to better investigate the sexual function of female patients with PD to provide them with an adequate therapeutic approach and potentially improve quality of life.
- Published
- 2023
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8. The effect of intravenous thrombolytic therapy on post stroke depression and cognitive dysfunction: A 3-months follow up study.
- Author
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Torrisi M, Bonanno L, Corallo F, Formica C, Giorgianni R, Marra A, Bramanti P, and Arcadi FA
- Subjects
- Depression drug therapy, Depression etiology, Fibrinolytic Agents therapeutic use, Follow-Up Studies, Humans, Retrospective Studies, Thrombolytic Therapy adverse effects, Treatment Outcome, Brain Ischemia, Cognitive Dysfunction drug therapy, Cognitive Dysfunction etiology, Stroke complications, Stroke drug therapy
- Abstract
Several studies have demonstrated the efficacy of intravenous thrombolytic therapy with recombinant plasminogen activator (rt-PA) on functional recovery at 3-18 months following the treatment. The objectives of this study were to investigate differences between thrombolytic or no thrombolytic treatment and if could be a relationship between patients who have underwent the thrombolytic treatment in terms of depressive symptoms and cognitive impairment. In this retrospective study, we evaluated 92 patients affected by ischemic stroke recruited from our rehabilitation center, coming from a Stroke Unit. All the eligible subjects were assessed at admission (T0) and two months later, at discharge, upon concluded the rehabilitation program (T1). The patients were divided into two groups: Thrombolysis Group (n.40 subjects) and no Thrombolysis Group (n.52 subjects). Cognitive functions were evaluated with the Montreal Overall Cognitive Assessment. Functional status were evaluated with the Barthel Index and the Functional Independent Misure. We administered Beck Depression Inventory-II to verify the presence of a depressive state. We found that at three months after stroke, the prevalence of depressive symptoms and cognitive improvement, among patient who had undergone thrombolytic treatment, and who had not, was not different. Conversely, we found an improvement of depressive symptoms in each group.
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- 2022
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9. The Use of Palmitoylethanolamide in the Treatment of Long COVID: A Real-Life Retrospective Cohort Study.
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Raciti L, De Luca R, Raciti G, Arcadi FA, and Calabrò RS
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- Adult, Amides, Ethanolamines, Female, Humans, Male, Middle Aged, Palmitic Acids, Quality of Life, Retrospective Studies, Post-Acute COVID-19 Syndrome, COVID-19 complications, COVID-19 Drug Treatment
- Abstract
COVID-19 can cause symptoms that last weeks or months after the infection has gone, with a significant impairment of quality of life. Palmitoylethanolamide (PEA) is a naturally occurring lipid mediator that has an entourage effect on the endocannabinoid system mitigating the cytokine storm. The aim of this retrospective study is to evaluate the potential efficacy of PEA in the treatment of long COVID. Patients attending the Neurological Out Clinic of the IRCCS Centro Neurolesi Bonino-Pulejo (Messina, Italy) from August 2020 to September 2021 were screened for potential inclusion in the study. We included only long COVID patients who were treated with PEA 600 mg two times daily for about 3 months. All patients performed the post-COVID-19 Functional Status (PCFS) scale. Thirty-three patients (10 males, 43.5%, mean age 47.8 ± 12.4) were enrolled in the study. Patients were divided into two groups based on hospitalization or home care observation. A substantial difference in the PCFS score between the two groups at baseline and after treatment with PEA were found. We found that smoking was a risk factor with an odds ratio of 8.13 CI 95% [0.233, 1.167]. Our findings encourage the use of PEA as a potentially effective therapy in patients with long COVID.
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- 2022
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10. Could Palmitoylethanolamide Be an Effective Treatment for Long-COVID-19? Hypothesis and Insights in Potential Mechanisms of Action and Clinical Applications.
- Author
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Raciti L, Arcadi FA, and Calabrò RS
- Abstract
COVID-19 is highly transmissive and contagious disease with a wide spectrum of clinicopathological issues, including respiratory, vasculo-coagulative, and immune disorders. In some cases of COVID-19, patients can be characterized by clinical sequelae with mild-to-moderate symptoms that persist long after the resolution of the acute infection, known as long-COVID, potentially affecting their quality of life. The main symptoms of long-COVID include persistent dyspnea, fatigue and weakness (that are typically out of proportion, to the degree of ongoing lung damage and gas exchange impairment), persistence of anosmia and dysgeusia, neuropsychiatric symptoms, and cognitive dysfunctions (such as brain fog or memory lapses). The appropriate management and prevention of potential long-COVID sequelae is still lacking. It is also believed that long-term symptoms of COVID-19 are related to an immunity over-response, namely a cytokine storm, involving the release of pro-inflammatory interleukins, monocyte chemoattractant proteins, and tissue necrosis factors. Palmitoylethanolamide (PEA) shows affinity for vanilloid receptor 1 and for cannabinoid-like G protein-coupled receptors, enhancing anandamide activity by means of an entourage effect. Due to its anti-inflammatory properties, PEA has been recently used as an early add-on therapy for respiratory problems in patients with COVID-19. It is believed that PEA mitigates the cytokine storm modulating cell-mediated immunity, as well as counteracts pain and oxidative stress. In this article, we theorize that PEA could be a potentially effective nutraceutical to treat long-COVID, with regard to fatigue and myalgia, where a mythocondrial dysfunction is hypothesizable., Competing Interests: DISCLOSURES: The authors have no conflicts of interest relevant to the content of this article., (Copyright © 2022. Matrix Medical Communications. All rights reserved.)
- Published
- 2022
11. The role of rehabilitation and vitamin D supplementation on motor and psychological outcomes in poststroke patients.
- Author
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Torrisi M, Bonanno L, Formica C, Arcadi FA, Cardile D, Cimino V, Bramanti P, and Morini E
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- Calcium, Cholecalciferol, Dietary Supplements, Double-Blind Method, Humans, Vitamin D, Vitamins therapeutic use, Stroke complications, Vitamin D Deficiency
- Abstract
Abstract: Post-Stroke depression affects between 12% and 72% of patients who have suffered a stroke. The association between low serum levels of 25-hydroxyvitamin D (25(OH) D) and increased risk of depression is reported in both stroke and non-stroke patients. Similarly, high 25(OH) D levels might be associated with greater functional improvement during rehabilitation program.We wanted to investigate the effects of an intensive rehabilitation on poststroke outcomes. We wondered if the daily rehabilitation of motor and cognitive functions could also have an effect on mood and functional abilities in addition to or as an alternative to vitamin D supplementation.We conducted a 12-week, randomized trial, double blind, parallel, monocentric clinical trial of 40 patients undergoing intensive neuro-rehabilitation treatment at a specialized care facility for ischemic or hemorrhagic brain stroke. Participants were randomly assigned, in a 1:1 ratio, to 1 of 2 parallel groups: in the experimental group, 2000 IU/day of oral cholecalciferol was administered; in the control group patients were not taking vitamin D supplementation. Patients underwent a text evaluation to investigate psychological and motor outcomes.Significant intra-group difference in outcomes measures was found but not between control group and experimental group. In the vitamin D group, we highlighted significant differences between T0 and T1 in calcium (P < .001), vitamin D (P < .001), in Montgomery Aasberg Depression Rating Scale (P = .001), and in Functional Independent Measures (P < .001). In the health control group, we found a significant difference in calcium (P = .003), vitamin D (P < .001), Montgomery Aasberg Depression Rating Scale (P = 0.006), in general self-efficacy (P = .009), and in Functional Independent Measures (P < .001).Our results show that the beneficial effect on mood and functional recovery is mainly due to neurorehabilitation rather than vitamin D supplementation., Competing Interests: The authors have no funding and conflicts of interest to disclose., (Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.)
- Published
- 2021
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12. Role of citicoline and choline in the treatment of post-stroke depression: an exploratory study.
- Author
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Arcadi FA, Corallo F, Torrisi M, Scarfì C, Lo Buono V, Formica C, Bramanti P, Marino S, Bonanno L, and De Cola MC
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- Choline, Humans, Retrospective Studies, Selective Serotonin Reuptake Inhibitors therapeutic use, Cytidine Diphosphate Choline therapeutic use, Depression drug therapy, Depression etiology
- Abstract
Objective: To compare selective serotonin reuptake inhibitors (SSRIs) and nootropic drugs in the reduction of anxiety and depressive symptoms in post-stroke patients., Methods: This retrospective cohort study included patients diagnosed with post-stroke depression that were treated with either SSRIs or nootropic drugs (i.e. citicoline or choline alphoscerate). Depression and anxiety were assessed using the Hamilton Rating Scales. Statistical associations between the use of nootropic drugs and mood disorder improvements were determined by measuring assessment scores at 6-months., Results: A total of 44 post-stroke patients with depression (aged 45-75 years) were enrolled in the study: 20 were treated with SSRIs and 24 received nootropic drugs. From baseline to follow-up, the SSRI group showed a large effect size with regard depression (success rate difference [SRD] 0.57; 95% confidence interval [CI] 0.21, 0.79) and anxiety (SRD 0.49; 95% CI 0.14, 0.74), whereas the nootropic group showed a small effect size for depression (SRD 0.16; 95% CI -0.17, 0.46) and a small effect size for anxiety (SRD 0.36; 95% CI -0.03, 0.62)., Conclusion: The administration of nootropic drugs could be a valid therapeutic strategy to manage post-stroke patients suffering from mild-moderate anxiety or anxious-depressive syndrome, but this requires further research.
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- 2021
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13. Cognitive recovery in people with relapsing/remitting multiple sclerosis: A randomized clinical trial on virtual reality-based neurorehabilitation.
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Leonardi S, Maggio MG, Russo M, Bramanti A, Arcadi FA, Naro A, Calabrò RS, and De Luca R
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- Female, Humans, Male, Middle Aged, Multiple Sclerosis, Relapsing-Remitting psychology, Neuropsychological Tests, Treatment Outcome, Cognition physiology, Multiple Sclerosis, Relapsing-Remitting rehabilitation, Neurological Rehabilitation methods, Virtual Reality
- Abstract
Background: Multiple sclerosis (MS) can adversely affect several domains of cognitive function, including attention, information processing, memory and learning, executive functions and visuospatial skills. In recent years, technological innovations have proven effective in improving motor and cognitive impairment in neurological patients, including those affected by MS., Objective: The study aims to evaluate cognitive outcomes after rehabilitation training with the Virtual Reality rehabilitation system (VRRS) in patients suffering from MS., Methods: All patients were randomized into either the control group (CG: 15 patients) receiving conventional cognitive rehab or the experimental group (EG) using virtual reality (VR) (15 patients). Both groups underwent the same amount of cognitive training, 3 times a week for 8 weeks. They were submitted to neuropsychological assessment before (T0) and after the rehabilitation treatment (T1)., Results: Our data showed that both conventional and VR cognitive rehabilitation approaches improved mood (p < 0.001) and visuospatial skills. However, only in the EG a significant improvement in specific cognitive domains (p < 0.001), including learning ability, short-term verbal memory, lexical access ability, as well as quality of life related to mental states, was found., Conclusions: The present study demonstrated that VR can be a motivational and effective tool for cognitive recovery in MS patients., (Copyright © 2021. Published by Elsevier B.V.)
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- 2021
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14. Analgesic hypnotic treatment in a post-stroke patient.
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Formica C, Micchia K, Cartella E, De Salvo S, Bonanno L, Corallo F, Arcadi FA, Giorgianni R, Marra A, Bramanti P, and Marino S
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- Analgesics, Humans, Hypnotics and Sedatives, Pain Measurement, Analgesia, Hypnosis
- Abstract
In recent years, hypnotic suggestions have been used in several clinical conditions. This treatment is often used for anxiety treatment, somatization, and post-traumatic stress disorder. Hypnotic analgesia is one of the most clinically useful phenomena of hypnosis. The article describes the case of a patient who underwent hypnotic treatments for hypersensitivity and chronic pain. Results showed an improvement of pain control and a decrease of pain hypersensibility. In addition, during rehabilitative treatments, the patient reported a high level of compliance with the multidisciplinary team. These findings suggest that hypnosis could be a useful treatment for post-stroke pain management.
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- 2021
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15. Role of functional pharmacological therapy in post-stroke depression: a narrative review.
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Corallo F, Scarfì C, Arcadi FA, Formica C, Di Cara M, Palmeri R, Romeo L, Lo Buono V, Bramanti P, Marino S, and De Cola MC
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- Antidepressive Agents therapeutic use, Humans, Norepinephrine, Selective Serotonin Reuptake Inhibitors, Depression drug therapy, Depression etiology, Stroke complications, Stroke drug therapy
- Abstract
Objective: We conducted a narrative review to investigate whether antidepressant therapy, including the use of selective serotonin reuptake inhibitors (SSRIs) or serotonin-norepinephrine reuptake inhibitors (SNRIs) or the use of supportive drugs (i.e., citicoline or choline alfoscerate) as a substitute for antidepressant therapy, reduces depression in patients with cerebrovascular diseases., Methods: A systematic search of the PubMed and Web of Science databases was performed, including review articles and other studies to identify additional citations. Only 4 of 1566 publications met the inclusion/exclusion criteria and were selected., Results: Studies showed that post-stroke depression (PSD) could be treated with antidepressant therapy, as well as supportive drugs such as citicoline or choline alfoscerate, which may have antidepressant effects., Conclusions: The findings support the efficacy of citicoline as a treatment for depression. Studies aimed to discover the characteristics of these psychostimulants in relation to PSD treatment should be performed.
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- 2020
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16. Motor imagery in stroke patients: a descriptive review on a multidimensional ability.
- Author
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Santoro S, Lo Buono V, Corallo F, Cartella E, Micchia K, Palmeri R, Arcadi FA, Bramanti A, and Marino S
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- Humans, Imagination physiology, Motor Activity physiology, Motor Skills physiology, Neuronal Plasticity physiology, Stroke physiopathology
- Abstract
Purpose/aim: Motor imagery (MI) is the mental representation of a movement without engaging its actual execution. MI shares neuroanatomical correlates with brain motor networks. Neurologic disorders affecting motor skills, such as stroke, have been related to impairments in MI. A descriptive review was conducted to explore the effects of stroke on MI ability and its background mechanisms. Materials and Methods: We searched on PubMed and Web of Science databases and screening references of included studies and review articles for additional citations. Results: On a total of 885 studies, only 15 articles met inclusion criteria. Results suggested that MI is impaired after stroke, in implicit and explicit abilities. Impairments in mental chronometry as well as in accuracy and reaction times were observed. Conclusions: Neuroimaging findings confirmed a brain reorganization after a stroke and a compensatory over-usage of contralesional hemisphere was highlighted.
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- 2019
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17. New versus Old Oral Anticoagulants: How Can We Set the Scale Needle? Considerations on a Case Report.
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Arcadi FA, Portaro S, Giorgianni R, Naro A, Casella C, Genovese C, Marino S, and Calabrò RS
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- Abortion, Spontaneous, Acenocoumarol therapeutic use, Adult, Antithrombins administration & dosage, Carotid Arteries diagnostic imaging, Carotid Arteries pathology, Computed Tomography Angiography, Dabigatran administration & dosage, Female, Follow-Up Studies, Humans, Product Surveillance, Postmarketing methods, Pulmonary Embolism complications, Pulmonary Embolism diagnostic imaging, Stroke diagnostic imaging, Stroke etiology, Treatment Outcome, Venous Thrombosis complications, Venous Thrombosis diagnostic imaging, Antiphospholipid Syndrome drug therapy, Antithrombins adverse effects, Antithrombins therapeutic use, Dabigatran adverse effects, Dabigatran therapeutic use, Stroke drug therapy, Stroke prevention & control, Warfarin therapeutic use
- Abstract
Ischemic stroke is a complex multifactorial disorder. Anticoagulation is a growing research area, with the main goal of preventing systemic embolization and stroke. We report the case of a 41-year-old woman with antiphospholipid syndrome who was unsuccessfully treated with Dabigatran, a new oral anticoagulant, as she developed a major stroke involving the right carotid artery, due to deep venous thrombosis with pulmonary embolism. We therefore suggest a closer monitoring of the safety and efficacy of dabigatran. Moreover, in the presence of multifactorial causes of pro-coagulation, we believe that warfarin should remain the mainstay of oral anticoagulation.
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- 2019
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18. Effects of felbamate on brain polyamine changes following transient cerebral ischemia in the Mongolian gerbil.
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Bramanti P, Arcadi FA, Di Bella P, Sessa E, D'Aleo G, and Trimarchi GR
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- Animals, Brain drug effects, Dose-Response Relationship, Drug, Felbamate, Gerbillinae, Hippocampus metabolism, Male, Neostriatum metabolism, Phenylcarbamates, Time Factors, Brain metabolism, Ischemic Attack, Transient drug therapy, Ischemic Attack, Transient metabolism, Neuroprotective Agents pharmacology, Polyamines metabolism, Propylene Glycols pharmacology, Putrescine metabolism
- Abstract
We sought to determine whether treatment with felbamate was capable to reduce the accumulation of putrescine induced by transient forebrain ischemia in the Mongolian gerbil. Gerbils underwent 10 min ligation of common carotid arteries followed by recirculation. Immediately after the release of the arterial occlusion, felbamate (75 and 150 mg kg(-1) i.p.) was administered. Putrescine and polyamine levels were measured in hippocampus and striatum at 1, 8, 24 and 48 h after recirculation. Putrescine levels appeared enhanced already 8 h after the release of the arterial occlusion and kept increasing up to 48 h in the hippocampus and striatum. No significant changes in spermidine levels during recirculation were detected. Conversely, spermine appeared to decrease in the hippocampus while it did not show changes in the striatum. Felbamate significantly reduced the ischemia induced changes in putrescine brain content only at the dose of 150 mg kg(-1) i.p.
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- 2000
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19. Changes in somatosensory evoked potentials following forebrain ischemia in the gerbils: effects of felbamate.
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Arcadi FA, Lo Presti R, Di Bella P, Sessa E, Imperatore C, Salemi M, Costa G, and Bramanti P
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- Animals, Dose-Response Relationship, Drug, Felbamate, Gerbillinae, Male, Phenylcarbamates, Time Factors, Brain Ischemia diagnosis, Brain Ischemia drug therapy, Evoked Potentials, Somatosensory, Neuroprotective Agents pharmacology, Neuroprotective Agents therapeutic use, Propylene Glycols pharmacology, Propylene Glycols therapeutic use, Prosencephalon blood supply, Prosencephalon drug effects
- Abstract
Somatosensory evoked potentials (SEPs) as well as change following transient cerebral ischemia in the gerbil were characterized in this study. SEPs were measured in each gerbil before ischemia (day -1), during ischemia, 10 min, 2, 4, 8, 24, 48 h and 8 days after recirculation. During bilateral carotid occlusion, SEP amplitude was dramatically reduced and central conduction time was significantly increased. During recirculation these values showed an improvement when compared to ischemic but not to control values. Moreover at 8 days of recirculation they were still statistically different from control values. Felbamate administration at the dose of 150 mg kg(-1), immediately after recirculation was shown to ameliorate neurophysiological recovery following cerebral ischemia.
- Published
- 1999
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20. Oral toxicity of bis(2-ethylhexyl) phthalate during pregnancy and suckling in the Long-Evans rat.
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Arcadi FA, Costa C, Imperatore C, Marchese A, Rapisarda A, Salemi M, Trimarchi GR, and Costa G
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- Administration, Oral, Animals, Animals, Suckling, Body Weight drug effects, Diethylhexyl Phthalate administration & dosage, Female, Kidney drug effects, Kidney pathology, Liver drug effects, Liver pathology, Male, Organ Size drug effects, Pregnancy, Rats, Testis drug effects, Testis pathology, Avoidance Learning drug effects, Diethylhexyl Phthalate toxicity, Litter Size drug effects, Prenatal Exposure Delayed Effects
- Abstract
Bis(2-ethylhexyl) phthalate (DEHP) is a compound widely used in plastics technology to impart flexibility to rigid polymers. We sought to determine whether the oral exposure of female rats to DEHP during gestation and suckling produces alterations in the litter. Female rats were exposed to different concentrations of DEHP suspended in drinking water (32.5 and 325 microl/litre) from day 1 of pregnancy to day 21 after delivery. Pup body weight gain and kidney, liver and testes weight was measured at different times (21, 28, 35, 42 and 56 days) after birth. Plasma concentrations of DEHP and histopathological alterations in kidneys, liver and testes were also studied. In addition, the ability of female pups (1 month of age) to perform a learned avoidance test, the 'beam walking' test, was evaluated. Perinatal exposure to DEHP produced no statistically significant changes in the body weight gain of offspring. Conversely, it produced a significant decrease in kidney and testes relative weight (organ/body weight) with a significant increase in relative liver weight. Signs of histological damage in kidneys, liver, and particularly testes, were observed. Pups exposed perinatally to the highest concentration of DEHP elicited a significant increase in the time necessary to perform the beam walking test.
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- 1998
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21. Effects of fructose-1,6-biphosphate on microsphere-induced cerebral ischemia in the rat.
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Trimarchi GR, Arcadi FA, Imperatore C, Ruggeri P, and Costa G
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- Animals, Behavior, Animal, Brain metabolism, Brain Ischemia metabolism, Brain Ischemia physiopathology, Coloring Agents, Evans Blue metabolism, Female, Functional Laterality, Kinetics, Lactic Acid metabolism, Motor Activity, Rats, Brain Ischemia etiology, Fructosediphosphates pharmacology, Microspheres, Neuroprotective Agents pharmacology
- Abstract
Fructose-1,6-bisphosphate has been shown to exert beneficial effects in different experimental models of cerebral ischemia. In view of this evidence, we have determined whether the compound protects the brain during microsphere-induced ischemia. One thousand two hundred microspheres were injected into female rats through a catheter inserted into the right common carotid artery and, 15 minutes and again 24 hours later, we intravenously treated the animals with 333 mg Kg(-1) of fructose-1,6-bisphosphate. The injection of microspheres produced significant changes in the rats' gross behavior, in their performance in the beam walking test, and in their brain lactate concentrations. The treatment with fructose-1,6-bisphosphate significantly attenuated the behavioral alterations induced by microsphere ischemia, but not in reducing brain accumulation of lactate. Moreover, the compound was shown to ameliorate the blood-brain barrier dysfunction, produced 2 and 4 hours after microsphere injection, evaluated by the Evans blue method. These results suggest that fructose-1,6-bisphosphate possesses salutary properties against the damages induced by microsphere ischemia.
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- 1997
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22. Effect of 2,6-diisopropylphenol on the delayed hippocampal cell loss following transient forebrain ischemia in the gerbil.
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Arcadi FA, Rapisarda A, De Luca R, Trimarchi GR, and Costa G
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- Animals, Cell Death, Cell Survival drug effects, Disease Models, Animal, Gerbillinae, Male, Pyramidal Cells drug effects, Time Factors, Brain Ischemia drug therapy, Hippocampus drug effects, Propofol pharmacology
- Abstract
We examined the protective activity of 2,6-diisopropylphenol on mortality and delayed hippocampal cell death induced by transient cerebral ischemia in the gerbil. Forebrain ischemia was produced by bilaterally occluding the common carotid arteries for 10 minutes; then the blood supply to the brain was restored. The number of survivors was counted for 8 days, and the histopathological damage in the CA1 region of the hippocampus was scored according to the semiquantitative scale of Rudolphi and Colleagues. When intraperitoneally injected immediately after the ischemic attack, 2,6-diisopropylphenol (25, 50, 100 mg kg-1) produced no significant reduction in the rate of mortality in comparison with its vehicle. However, the survivors that had received the compound at the dose of 50 and 100 mg kg-1 elicited a significant increase in the number of viable pyramidal cells in the CA1 hippocampal region. Moreover, we obtained similar results by injecting the compound 30 minutes after the release of the carotid artery occlusion. These results suggest that 2,6-diisopropylphenol, although it does not show any capability of improving the rate of survival, it elicits protective properties against the transient forebrain ischemia-induced delayed hippocampal neuronal death.
- Published
- 1996
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23. Increased cardiovascular responsiveness to central cholinergic stimulation in the genetically epilepsy-prone rat.
- Author
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Trimarchi GR, Imperatore C, Arcadi FA, Saija A, De Sarro A, De Sarro GB, and Costa G
- Subjects
- Animals, Blood Pressure drug effects, Epilepsy physiopathology, Heart Rate drug effects, Hemicholinium 3 pharmacology, Injections, Intravenous, Male, Rats, Rats, Sprague-Dawley, Species Specificity, Arecoline pharmacology, Epilepsy genetics, Hemodynamics drug effects, Physostigmine pharmacology, Pressoreceptors drug effects
- Abstract
We sought to determine whether differences in cardiovascular responsiveness to central stimulation of the cholinergic system existed between the genetically epilepsy-prone and outbred Sprague-Dawley rats. We treated the unanaesthetized, restrained rats with the indirect cholinergic agonist physostigmine (25, 50, 100 and 200 micrograms kg-1, i.v.) and the direct muscarine agonist arecoline (50, 100 and 200 micrograms kg-1, i.v.). Blood pressure and heart rate were evaluated. Genetically epilepsy-prone rats demonstrated to be more susceptible to the action of physostigmine than the outbred Sprague-Dawley rats. Conversely, we did not note any difference between the two strains in the extent of the pressor response induced by arecoline. Moreover, we treated both strains with hemicholinium-3 (34.8 nmol, i.c.v.) to deplete endogenous stores of acetylcholine. This treatment did not affect the pressor response to arecoline, whereas it greatly reduced the response to physostigmine. The present results support an increased cardiovascular responsiveness to central cholinergic stimulation in the genetically epilepsy-prone rat which appears to be related to a pre-synaptic rather than a post-synaptic component.
- Published
- 1994
- Full Text
- View/download PDF
24. Effects of fructose-1,6-bisphosphate on brain polyamine biosynthesis in a model of transient cerebral ischemia.
- Author
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Trimarchi GR, De Luca R, Arcadi FA, Imperatore C, Ruggeri P, and Costa G
- Subjects
- Animals, Brain enzymology, Brain metabolism, Disease Models, Animal, Gerbillinae, Male, Ornithine Decarboxylase metabolism, Brain drug effects, Fructosediphosphates pharmacology, Ischemic Attack, Transient metabolism, Polyamines metabolism
- Abstract
We evaluated the effects on cerebral ischemia of a treatment with fructose-1,6-bisphosphate, a compound known to possess protective effects on acute ischemic injury in a variety of different tissues. We investigated the ability of the compound, administered either 15 minutes before or 15 minutes after the ischemic insult, in reducing the ischemia-induced changes in polyamine brain levels. The experiments were performed in adult, chloral hydrate-anesthetized Mongolian gerbils that underwent a 15 minutes ligation of the common carotid arteries followed by recirculation. Animals were sacrificed 1, 8 and 24 hours and immediately after the release of the occlusion. Polyamine brain levels were not modified during ischemia. Putrescine began to increase after eight hours from the release of the occlusion and we found it significantly increased after 24 hours in the hippocampus and striatum. We did not detect any significant changes in spermidine brain levels either during ischemia or during recirculation. Conversely, spermine appeared to decrease in the hippocampus while it did not show changes in striatum and medulla-pons. The activity of ornithine decarboxylase, a key enzyme in the biosynthesis of polyamines, resulted enhanced at the end of the ischemic period in all the brain regions tested and showed a peak at eight hours of recirculation in striatum and hippocampus whereas returned to control values in the medulla-pons. Fructose-1,6-bisphosphate significantly reduced the ischemia induced changes in polyamine brain content when administered before the ischemic insult while did not show protective properties when administered post-ischemically.
- Published
- 1994
- Full Text
- View/download PDF
25. Neuroprotective activity of fructose-1,6-bisphosphate following transient forebrain ischemia in the Mongolian gerbil.
- Author
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Trimarchi GR, Arcadi FA, De Luca R, Imperatore C, Santoro G, Trimarchi F, and Costa G
- Subjects
- Animals, Cell Death drug effects, Fructosediphosphates administration & dosage, Fructosediphosphates therapeutic use, Gerbillinae, Hippocampus drug effects, Ischemic Attack, Transient pathology, Male, Survival Rate, Fructosediphosphates pharmacology, Hippocampus pathology, Ischemic Attack, Transient drug therapy, Prosencephalon drug effects
- Abstract
We examined the protective activity of fructose-1,6-bisphosphate (FBP) on mortality and delayed hippocampal cell death induced by transient cerebral ischemia in the Mongolian gerbil. Forebrain ischemia was produced by bilaterally occluding the common carotid arteries for 15 min using microaneurysm clips; then the blood supply to the brain was restored. The number of survivors was counted for 8 days, and the histopathological damage in the CA1 region of the hippocampus was scored according to the semiquantitative scale of Rudolphi and colleagues. When injected 15 min before the ischemic insult, FBP (100 and 333 mg/kg, i.v.) significantly reduced the rate of mortality during the 8-day observation period. Equivalent doses of fructose and fructose monophosphate did not improve survival, and neither did low doses (33 mg/kg) of FBP. FBP also produced a significant degree of protection against the CA1 pyramidal cell loss in comparison with its vehicle (distilled water). Conversely, when we administered the compound, at the same dose, 15 min after the release of the arterial occlusion, we observed neither a significant reduction of mortality nor significant protection against hippocampal CA1 pyramidal cell loss. These results suggest that FBP possesses salutary properties against the damages induced by transient cerebral ischemia, although they are evident only when the compound is administered before the resolution of the ischemic injury.
- Published
- 1993
- Full Text
- View/download PDF
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