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1.
Neurology ; 103(8): e209828, 2024 Oct 22.
Artículo en Inglés | MEDLINE | ID: mdl-39284112

RESUMEN

OBJECTIVES: Recently, a subset of patients affected by cerebral amyloid angiopathy (CAA) distinguished by atypical juvenile onset and a hypothesized iatrogenic origin (iatrogenic CAA, iCAA) has emerged. ß-Amyloid (Aß) accumulation evidenced by amyloid PET positivity or CSF Aß decrease was included in the iCAA diagnostic criteria. Conversely, diagnostic criteria for sporadic CAA (sCAA) do not involve biomarker analysis. The aim of this study was to assess CSF and plasma levels of Aß and tau in iCAA and sCAA cohorts. METHODS: Patients affected by probable or possible CAA according to established criteria (Boston 2.0) were prospectively recruited at Fondazione IRCCS Carlo Besta and San Gerardo dei Tintori from May 2021 to January 2024. Patients with probable and possible iCAA or sCAA with available plasma and/or CSF samples were included. Clinical and neurologic data were collected, and levels of Aß40, Aß42, total tau, and phospho-tau (p-tau) were assessed in CSF and plasma by SiMoA and Lumipulse. RESULTS: 21 patients with iCAA (72% male, mean age at symptom onset 50 years [36-74]) and 32 patients with sCAA (44% male, mean age at symptom onset 68 years [52-80]) were identified. Cognitive impairment and cardiovascular risk factors in the sCAA cohort were more common compared with the iCAA cohort. Patients with sCAA and iCAA showed similar CSF levels for Aß40 (p = 0.5 [sCAA, 95% CI 2,604-4,228; iCAA, 95% CI 1,958-3,736]), Aß42 (p = 0.7 [sCAA, 95% CI 88-157; iCAA, 95% CI 83-155]), and total tau (p = 0.08 [sCAA, 95% CI 80-134; iCAA, 95% CI 37-99]). Plasma levels of Aß40 (p = 0.08, 95% CI 181-222), Aß42 (p = 0.3, 95% CI 6-8), and total tau (p = 0.4, 95% CI 3-6) were not statistically different in patients with sCAA compared with iCAA ones (Aß40, 95% CI 153-193; Aß42, 95% CI 6-7 and total tau, 95% CI 2-4). DISCUSSION: Despite presenting with a younger age at onset, fewer cardiovascular risk factors, and lower cognitive impairment, patients with iCAA demonstrated Aß and tau levels comparable with elderly patients with sCAA, supporting a common molecular paradigm between the 2 CAA forms.


Asunto(s)
Péptidos beta-Amiloides , Biomarcadores , Angiopatía Amiloide Cerebral , Enfermedad Iatrogénica , Fragmentos de Péptidos , Proteínas tau , Humanos , Masculino , Femenino , Angiopatía Amiloide Cerebral/sangre , Angiopatía Amiloide Cerebral/líquido cefalorraquídeo , Péptidos beta-Amiloides/líquido cefalorraquídeo , Péptidos beta-Amiloides/sangre , Biomarcadores/sangre , Biomarcadores/líquido cefalorraquídeo , Proteínas tau/líquido cefalorraquídeo , Proteínas tau/sangre , Anciano , Persona de Mediana Edad , Fragmentos de Péptidos/líquido cefalorraquídeo , Fragmentos de Péptidos/sangre , Estudios Prospectivos , Anciano de 80 o más Años
2.
Neurol Sci ; 45(10): 4647-4655, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39103735

RESUMEN

Despite the growing interest in gender medicine, the influence of sex and gender on human diseases, including stroke, continues to be underestimated and understudied. The COVID-19 pandemic has overall impacted not only the occurrence and management of stroke but has also exacerbated sex and gender disparities among both patients and healthcare providers. This paper aims to provide an updated overview on the influence of sex and gender in stroke pathophysiology and care during COVID-19 pandemic, through biological, clinical, psychosocial and research perspectives. Gender equity and awareness of the importance of sexual differences are sorely needed, especially in times of health crisis but have not yet been achieved to date. To this purpose, the sudden yet worldwide diffusion of COVID-19 represents a unique learning experience that highlights critical unmet needs also in gender medicine. The failures of this recent past should be kept as food for thought to inspire proper strategies reducing inequalities and to address women's health and wellbeing issues, particularly in case of future pandemics.


Asunto(s)
COVID-19 , Accidente Cerebrovascular , Humanos , COVID-19/psicología , COVID-19/epidemiología , COVID-19/complicaciones , Accidente Cerebrovascular/epidemiología , Accidente Cerebrovascular/psicología , Accidente Cerebrovascular/terapia , Femenino , Salud de la Mujer , Factores Sexuales
3.
Cells ; 13(13)2024 Jun 29.
Artículo en Inglés | MEDLINE | ID: mdl-38994983

RESUMEN

Anderson-Fabry disease (AFD) is a genetic sphingolipidosis involving virtually the entire body. Among its manifestation, the involvement of the central and peripheral nervous system is frequent. In recent decades, it has become evident that, besides cerebrovascular damage, a pure neuronal phenotype of AFD exists in the central nervous system, which is supported by clinical, pathological, and neuroimaging data. This neurodegenerative phenotype is often clinically characterized by an extrapyramidal component similar to the one seen in prodromal Parkinson's disease (PD). We analyzed the biological, clinical pathological, and neuroimaging data supporting this phenotype recently proposed in the literature. Moreover, we compared the neurodegenerative PD phenotype of AFD with a classical monogenic vascular disease responsible for vascular parkinsonism and cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL). A substantial difference in the clinical and neuroimaging features of neurodegenerative and vascular parkinsonism phenotypes emerged, with AFD being potentially responsible for both forms of the extrapyramidal involvement, and CADASIL mainly associated with the vascular subtype. The available studies share some limitations regarding both patients' information and neurological and genetic investigations. Further studies are needed to clarify the potential association between AFD and extrapyramidal manifestations.


Asunto(s)
Enfermedad de Fabry , Fenotipo , Humanos , Enfermedad de Fabry/genética , Enfermedad de Fabry/patología , Enfermedad de Fabry/complicaciones , Trastornos Parkinsonianos/genética , Trastornos Parkinsonianos/diagnóstico por imagen , Trastornos Parkinsonianos/patología , CADASIL/genética , CADASIL/patología
4.
Neurology ; 103(4): e209719, 2024 Aug 27.
Artículo en Inglés | MEDLINE | ID: mdl-39083717

RESUMEN

OBJECTIVES: Cerebral amyloid angiopathy (CAA)-related features on neuroimaging often coexist with signs of arteriolosclerosis-small vessel disease on neuroimaging in people with intracranial hemorrhage (ICH). This study aimed at defining the value of amyloid pathology detected by 18Fflutemetamol PET in reclassification and stratification of risk of bleeding in people with mixed CAA-arteriolosclerosis features. METHODS: We included consecutive patients admitted to 2 institutions (2018-2023) with spontaneous symptomatic ICH, subarachnoid hemorrhage (SAH), transient focal neurologic episodes (TFNE), or cognitive impairment and MRI showing CAA hallmarks. All patients underwent brain magnetic resonance imaging (MRI) with susceptibility weighted imaging and 18Fflutemetamol PET imaging and were followed up for at least 1 year. We compared cases with CAA and arteriolosclerosis + CAA features and defined long-term outcomes (composite outcome including death, ICH, ischemic stroke, SAH, TFNE) depending on PET status (CAA/amyloid pathology vs arteriolosclerosis-predominant groups). RESULTS: Among 47 patients, according to PET and MRI imaging, 38 patients were reclassified in the CAA/amyloid pathology group and 9 in the arteriolosclerosis-predominant group, with similar cardiovascular risk factors but a significantly higher lobar microbleed burden for the former group. The CAA/amyloid pathology group had higher rates of composite outcome (43.9 vs 11.1 events per 100 patient-year; p = 0.039) and ICH (36.5 vs 5.6 events per 100 patient-years; p = 0.04) compared with the arteriolosclerosis-predominant group. DISCUSSION: 18FFlutemetamol PET imaging can help in reclassification of mixed arteriolosclerosis + CAA into CAA/amyloid pathology and arteriolosclerosis-predominant, with implications on long-term risk of recurrent events. CLASSIFICATION OF EVIDENCE: This study provides Class IV evidence that 18Fflutemetamol PET can distinguish between CAA + arteriolosclerosis and arteriolosclerosis-predominant pathology.


Asunto(s)
Compuestos de Anilina , Angiopatía Amiloide Cerebral , Imagen por Resonancia Magnética , Tomografía de Emisión de Positrones , Humanos , Angiopatía Amiloide Cerebral/diagnóstico por imagen , Angiopatía Amiloide Cerebral/patología , Angiopatía Amiloide Cerebral/clasificación , Angiopatía Amiloide Cerebral/complicaciones , Masculino , Femenino , Anciano , Tomografía de Emisión de Positrones/métodos , Persona de Mediana Edad , Benzotiazoles , Anciano de 80 o más Años , Hemorragias Intracraneales/diagnóstico por imagen
5.
Ann Clin Transl Neurol ; 11(6): 1590-1603, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38655722

RESUMEN

OBJECTIVE: Moyamoya angiopathy (MA) is a rare cerebrovascular disorder characterized by recurrent ischemic/hemorrhagic strokes due to progressive occlusion of the intracranial carotid arteries. The lack of reliable disease severity biomarkers led us to investigate molecular features of a Caucasian cohort of MA patients. METHODS: The participants consisted of 30 MA patients and 40 controls. We measured cerebrospinal fluid (CSF) levels of angiogenic/inflammatory factors (ELISA). We then applied quantitative real-time PCR on cerebral artery specimens for expression analyses of angiogenic factors. By an immunoassay based on microfluidic technology, we examined the potential correlations between plasma protein expression and MA clinical progression. A RNA interference approach toward Ring Finger Protein 213 (RNF213) and a tube formation assay were applied in cellular model. RESULTS: We detected a statistically significant (p < 0.000001) up-regulation of Angiopoietin-2 (Ang-2) in CSF and stenotic middle cerebral arteries (RQ >2) of MA patients compared to controls. A high Ang-2 plasma concentration (p = 0.018) was associated with unfavorable outcome in a subset of MA patients. ROC curve analyses indicated Ang-2 as diagnostic CSF biomarker (>3741 pg/mL) and prognostic plasma biomarker (>1162 pg/mL), to distinguish stable-from-progressive MA. Consistently, MA cellular model showed a significant up-regulation (RQ >2) of Ang-2 in RNF213 silenced condition. INTERPRETATION: Our results pointed out Ang-2 as a reliable biomarker mirroring arterial steno-occlusion and vascular instability of MA in CSF and blood, providing a candidate factor for patient stratification. This pilot study may pave the way to the validation of a biomarker to identify progressive MA patients deserving a specific treatment path.


Asunto(s)
Angiopoyetina 2 , Enfermedad de Moyamoya , Humanos , Enfermedad de Moyamoya/genética , Enfermedad de Moyamoya/líquido cefalorraquídeo , Enfermedad de Moyamoya/diagnóstico , Angiopoyetina 2/líquido cefalorraquídeo , Angiopoyetina 2/genética , Angiopoyetina 2/sangre , Masculino , Femenino , Adulto , Persona de Mediana Edad , Pronóstico , Biomarcadores/líquido cefalorraquídeo , Biomarcadores/sangre , Ubiquitina-Proteína Ligasas/genética , Adulto Joven , Adenosina Trifosfatasas
6.
Neurol Sci ; 45(7): 3031-3049, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38388894

RESUMEN

AIM: To review the current data on cognitive and psychological characteristics of patients with CAA and on the instruments used for their evaluation. METHODS: A systematic search was performed in Embase, Scopus and PubMed with terms related to "cerebral amyloid angiopathy", "neuropsychological measures" and "patient-reported outcome measures" from January 2001 to December 2021. RESULTS: Out of 2851 records, 18 articles were selected. The cognitive evaluation was present in all of which, while the psychological one only in five articles. The MMSE (Mini Mental State Examination), TMT (Trail Making Test), fluency test, verbal learning test, digit span, digit symbol and Rey figure tests were the most used cognitive tests, while executive function, memory, processing speed, visuospatial function, attention and language were the most frequent impaired cognitive functions. Depression was the most considered psychological factor usually measured with BDI (Beck Depression Inventory) and GDS (Geriatric Depression Scale). CONCLUSIONS: The results of this study might be used in clinical practice as a guide to choose cognitive and psychological instruments and integrate them in the clinical evaluation. The results might also be used in the research field for studies investigating the impact of cognitive and psychological variables on the disease course and for consensus studies aimed at define a standardized evaluation of these aspects.


Asunto(s)
Angiopatía Amiloide Cerebral , Humanos , Angiopatía Amiloide Cerebral/psicología , Angiopatía Amiloide Cerebral/complicaciones , Disfunción Cognitiva/etiología , Disfunción Cognitiva/diagnóstico , Depresión/etiología , Depresión/psicología , Depresión/diagnóstico , Pruebas Neuropsicológicas
7.
Int J Stroke ; 19(3): 314-321, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37700397

RESUMEN

BACKGROUND: The transmission of amyloid ß (Aß) in humans leading to iatrogenic cerebral amyloid angiopathy (iCAA) is a novel concept with analogies to prion diseases. However, the number of published cases is low, and larger international studies are missing. AIMS: We aimed to build a large multinational collaboration on iCAA to better understand the clinical spectrum of affected patients. METHODS: We collected clinical data on patients with iCAA from Austria, Croatia, Italy, Slovenia, and Spain. Patients were included if they met the proposed Queen Square diagnostic criteria (QSC) for iCAA. In addition, we pooled data on disease onset, latency, and cerebrospinal fluid (CSF) biomarkers from previously published iCAA cases based on a systematic literature review. RESULTS: Twenty-seven patients (22% women) were included in this study. Of these, 19 (70%) met the criteria for probable and 8 (30%) for possible iCAA. Prior neurosurgical procedures were performed in all patients (93% brain surgery, 7% spinal surgery) at median age of 8 (interquartile range (IQR) = 4-18, range = 0-26 years) years. The median symptom latency was 39 years (IQR = 34-41, range = 28-49). The median age at symptom onset was 49 years (IQR = 43-55, range = 32-70). Twenty-one patients (78%) presented with intracranial hemorrhage and 3 (11%) with seizures. CONCLUSIONS: Our large international case series of patients with iCAA confirms a wide age boundary for the diagnosis of iCAA. Dissemination of awareness of this rare condition will help to identify more affected patients.


Asunto(s)
Angiopatía Amiloide Cerebral , Accidente Cerebrovascular , Humanos , Femenino , Preescolar , Niño , Adolescente , Persona de Mediana Edad , Masculino , Péptidos beta-Amiloides/líquido cefalorraquídeo , Angiopatía Amiloide Cerebral/diagnóstico , Hemorragias Intracraneales , Enfermedad Iatrogénica , Hemorragia Cerebral , Imagen por Resonancia Magnética
8.
Neurol Sci ; 45(5): 2087-2095, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38017154

RESUMEN

The development of virtual care options, including virtual hospital platforms, is rapidly changing the healthcare, mostly in the pandemic period, due to difficulties in in-person consultations. For this purpose, in 2020, a neurological Virtual Hospital (NOVHO) pilot study has been implemented, in order to experiment a multidisciplinary second opinion evaluation system for neurological diseases. Cerebrovascular diseases represent a preponderant part of neurological disorders. However, more than 30% of strokes remain of undetermined source, and rare CVD (rCVD) are often misdiagnosed. The lack of data on phenotype and clinical course of rCVD patients makes the diagnosis and the development of therapies challenging. Since the diagnosis and care of rCVDs require adequate expertise and instrumental tools, their management is mostly allocated to a few experienced hospitals, making difficult equity in access to care. Therefore, strategies for virtual consultations are increasingly applied with some advantage for patient management also in peripheral areas. Moreover, health data are becoming increasingly complex and require new technologies to be managed. The use of Artificial Intelligence is beginning to be applied to the healthcare system and together with the Internet of Things will enable the creation of virtual models with predictive abilities, bringing healthcare one step closer to personalized medicine. Herein, we will report on the preliminary results of the NOVHO project and present the methodology of a new project aimed at developing an innovative multidisciplinary and multicentre virtual care model, specific for rCVD (NOVHO-rCVD), which combines the virtual hospital approach and the deep-learning machine system.


Asunto(s)
Inteligencia Artificial , Trastornos Cerebrovasculares , Humanos , Proyectos Piloto , Atención a la Salud , Trastornos Cerebrovasculares/diagnóstico , Trastornos Cerebrovasculares/terapia , Hospitales
9.
Int J Rehabil Res ; 46(4): 355-358, 2023 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-37909313

RESUMEN

Well-being is a relevant outcome after stroke, potentially impacted by mental health difficulties. We addressed the psychological and cognitive predictors of psychological well-being in a sample of 122 stroke survivors (75 males, 97 with ischemic stroke; mean age 64.1, mean NIHSS 2.9, mean distance from the acute event 5.1 years) admitted to the 'Carlo Besta' Neurological Institute. Trait anxiety (ß = -0.257), state anxiety (ß = -0.208) and symptoms of depression (ß = -0.484) significantly predicted well-being variation (Adj. R2 = 0.687). These potentially modifiable factors are promising targets for interventions to reduce the burden of illness and enhance the recovery process.


Asunto(s)
Bienestar Psicológico , Accidente Cerebrovascular , Humanos , Masculino , Persona de Mediana Edad , Cognición , Estudios Transversales , Depresión/psicología , Accidente Cerebrovascular/psicología , Sobrevivientes , Femenino
10.
Int J Mol Sci ; 24(19)2023 Oct 03.
Artículo en Inglés | MEDLINE | ID: mdl-37834297

RESUMEN

Stroke is among the most prevalent causes of disability and is the second leading cause of death worldwide in Western countries [...].


Asunto(s)
Personas con Discapacidad , Accidente Cerebrovascular , Humanos , Accidente Cerebrovascular/terapia , Predicción , Salud Global
11.
J Am Coll Cardiol ; 82(14): 1411-1423, 2023 Oct 03.
Artículo en Inglés | MEDLINE | ID: mdl-37758436

RESUMEN

BACKGROUND: The association between vascular risk factors and cervical artery dissections (CeADs), a leading cause of ischemic stroke (IS) in the young, remains controversial. OBJECTIVES: This study aimed to explore the causal relation of vascular risk factors with CeAD risk and recurrence and compare it to their relation with non-CeAD IS. METHODS: This study used 2-sample Mendelian randomization analyses to explore the association of blood pressure (BP), lipid levels, type 2 diabetes, waist-to-hip ratio, smoking, and body mass index with CeAD and non-CeAD IS. To simulate effects of the most frequently used BP-lowering drugs, this study constructed genetic proxies and tested their association with CeAD and non-CeAD IS. In analyses among patients with CeAD, the investigators studied the association between weighted genetic risk scores of vascular risk factors and the risk of multiple or early recurrent dissections. RESULTS: Genetically determined higher systolic BP (OR: 1.51; 95% CI: 1.32-1.72) and diastolic BP (OR: 2.40; 95% CI: 1.92-3.00) increased the risk of CeAD (P < 0.0001). Genetically determined higher body mass index was inconsistently associated with a lower risk of CeAD. Genetic proxies for ß-blocker effects were associated with a lower risk of CeAD (OR: 0.65; 95% CI: 0.50-0.85), whereas calcium-channel blockers were associated with a lower risk of non-CeAD IS (OR: 0.75; 95% CI: 0.63-0.90). Weighted genetic risk scores for systolic BP and diastolic BP were associated with an increased risk of multiple or early recurrent CeAD. CONCLUSIONS: These results are supportive of a causal association between higher BP and increased CeAD risk and recurrence and provide genetic evidence for lower CeAD risk under ß-blockers. This may inform secondary prevention strategies and trial design for CeAD.

12.
Int J Mol Sci ; 24(16)2023 Aug 13.
Artículo en Inglés | MEDLINE | ID: mdl-37628924

RESUMEN

Stroke remains a major cause of death and disability worldwide. Identifying new circulating biomarkers able to distinguish and monitor common and rare cerebrovascular diseases that lead to stroke is of great importance. Biomarkers provide complementary information that may improve diagnosis, prognosis and prediction of progression as well. Furthermore, biomarkers can contribute to filling the gap in knowledge concerning the underlying disease mechanisms by pointing out novel potential therapeutic targets for personalized medicine. If many "conventional" lipid biomarkers are already known to exert a relevant role in cerebrovascular diseases, the aim of our study is to review novel "unconventional" lipid biomarkers that have been recently identified in common and rare cerebrovascular disorders using novel, cutting-edge lipidomic approaches.


Asunto(s)
Trastornos Cerebrovasculares , Accidente Cerebrovascular , Humanos , Lipidómica , Trastornos Cerebrovasculares/diagnóstico , Biomarcadores , Enfermedades Raras , Lípidos
14.
Front Neurosci ; 17: 1219025, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37492402

RESUMEN

Thanks to a more widespread knowledge of the disease, and improved diagnostic techniques, the clinical spectrum of cerebral amyloid angiopathy (CAA) is now broad. Sporadic CAA, hereditary CAA, CAA-related inflammation (CAA-ri) and iatrogenic CAA (iCAA) create a clinical and radiological continuum which is intriguing and only partially discovered. Despite being relatively rare, CAA-ri, an aggressive subtype of CAA with vascular inflammation, has gained growing attention also because of the therapeutic efficacy of anti-inflammatory and immunomodulating drugs. More recently, diagnostic criteria have been proposed for an unusual variant of CAA, probably related to an iatrogenic origin (iCAA), toward which there is mounting scientific interest. These atypical forms of CAA are still poorly known, and their recognition can be challenging and deserve to be pursued in specialized referral centres. The aim of this brief review is to focus current developments in the field of rare forms of CAA, its pathogenesis as well as clinical and biological features in order to increase awareness of these rare forms.

15.
Eur J Neurol ; 30(10): 3397-3399, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37494007

RESUMEN

BACKGROUND AND PURPOSE: Iatrogenic cerebral amyloid angiopathy (iCAA) is a specific type of cerebral amyloid angiopathy which is becoming increasingly diagnosed. It has been hypothesized that iCAA might arise as a late consequence of past neurosurgical interventions involving dural patch grafts. Positron emission tomography (PET) scans with amyloid tracers and the assay of beta-amyloid levels in cerebrospinal fluid (CSF) are auxiliary criteria, however, definite diagnosis remains histopathologically determined. METHODS: Case report. RESULTS: We present a 48-year-old patient who suffered multiple lobar cerebral haemorrhages from the age of 47. The patient had undergone surgery for remolval of hemangioblastoma with lyophilized dural graft at the age of 11, in 1987. Brain MRI, amiloid PET and CSF analysis led to a diagnosis of probable iCAA. CONCLUSION: It is necessary to increase the awareness of iCAA, in order to avoid overlooking the potential causal involvement of surgical procedures which took place far back in time. Moreover, the diagnostic relevance of amyloid PET and beta-amyloid levels in CSF must be emphasised.


Asunto(s)
Angiopatía Amiloide Cerebral , Humanos , Persona de Mediana Edad , Angiopatía Amiloide Cerebral/complicaciones , Angiopatía Amiloide Cerebral/diagnóstico por imagen , Péptidos beta-Amiloides/líquido cefalorraquídeo , Hemorragia Cerebral , Imagen por Resonancia Magnética , Enfermedad Iatrogénica
16.
Int J Mol Sci ; 24(13)2023 Jul 07.
Artículo en Inglés | MEDLINE | ID: mdl-37446373

RESUMEN

Moyamoya angiopathy (MMA) is an uncommon cerebrovascular disease characterized by a progressive steno-occlusive lesion of the internal carotid artery and the compensatory development of an unstable network of collateral vessels. These vascular hallmarks are responsible for recurrent ischemic/hemorrhagic strokes. Surgical treatment represents the preferred procedure for MMA patients, and indirect revascularization may induce a spontaneous angiogenesis between the brain surface and dura mater (DM), whose function remains rather unknown. A better understanding of MMA pathogenesis is expected from the molecular characterization of DM. We performed a comprehensive, label-free, quantitative mass spectrometry-based proteomic characterization of DM. The 30 most abundant identified proteins were located in the extracellular region or exosomes and were involved in extracellular matrix organization. Gene ontology analysis revealed that most proteins were involved in binding functions and hydrolase activity. Among the 30 most abundant proteins, Filamin A is particularly relevant because considering its well-known biochemical functions and molecular features, it could be a possible second hit gene with a potential role in MMA pathogenesis. The current explorative study could pave the way for further analyses aimed at better understanding such uncommon and disabling intracranial vasculopathy.


Asunto(s)
Trastornos Cerebrovasculares , Enfermedad de Moyamoya , Humanos , Proteoma , Proteómica , Enfermedad de Moyamoya/genética , Trastornos Cerebrovasculares/complicaciones , Duramadre
17.
Ann Neurol ; 94(3): 585-595, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37272282

RESUMEN

OBJECTIVE: Epidemiological data to characterize the individual risk profile of patients with spontaneous cervical artery dissection (sCeAD) are rather inconsistent. METHODS AND RESULTS: In the setting of the Italian Project on Stroke in Young Adults Cervical Artery Dissection (IPSYS CeAD), we compared the characteristics of 1,468 patients with sCeAD (mean age = 47.3 ± 11.3 years, men = 56.7%) prospectively recruited at 39 Italian centers with those of 2 control groups, composed of (1) patients whose ischemic stroke was caused by mechanisms other than dissection (non-CeAD IS) selected from the prospective IPSYS registry and Brescia Stroke Registry and (2) stroke-free individuals selected from the staff members of participating hospitals, matched 1:1:1 by sex, age, and race. Compared to stroke-free subjects, patients with sCeAD were more likely to be hypertensive (odds ratio [OR] = 1.65, 95% confidence interval [CI] = 1.37-1.98), to have personal history of migraine with aura (OR = 2.45, 95% CI = 1.74-3.34), without aura (OR = 2.67, 95% CI = 2.15-3.32), and family history of vascular disease in first-degree relatives (OR = 1.69, 95% CI = 1.39-2.05), and less likely to be diabetic (OR = 0.65, 95% CI = 0.47-0.91), hypercholesterolemic (OR = 0.75, 95% CI = 0.62-0.91), and obese (OR = 0.41, 95% CI = 0.31-0.54). Migraine without aura was also associated with sCeAD (OR = 1.81, 95% CI = 1.47-2.22) in comparison with patients with non-CeAD IS. In the subgroup of patients with migraine, patients with sCeAD had higher frequency of migraine attacks and were less likely to take anti-migraine preventive medications, especially beta-blockers, compared with the other groups. INTERPRETATION: The risk of sCeAD is influenced by migraine, especially migraine without aura, more than by other factors, increases with increasing frequency of attacks, and seems to be reduced by migraine preventive medications, namely beta-blockers. ANN NEUROL 2023;94:585-595.


Asunto(s)
Migraña sin Aura , Accidente Cerebrovascular , Disección de la Arteria Vertebral , Masculino , Adulto Joven , Humanos , Adulto , Persona de Mediana Edad , Estudios Prospectivos , Factores de Riesgo , Disección de la Arteria Vertebral/complicaciones , Disección de la Arteria Vertebral/epidemiología , Accidente Cerebrovascular/complicaciones , Arterias
18.
Eur Stroke J ; 8(1): 55-84, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-37021176

RESUMEN

The European Stroke Organisation (ESO) guidelines on Moyamoya Angiopathy (MMA), developed according to ESO standard operating procedure and Grading of Recommendations, Assessment, Development and Evaluation (GRADE) methodology, were compiled to assist clinicians in managing patients with MMA in their decision making. A working group involving neurologists, neurosurgeons, a geneticist and methodologists identified nine relevant clinical questions, performed systematic literature reviews and, whenever possible, meta-analyses. Quality assessment of the available evidence was made with specific recommendations. In the absence of sufficient evidence to provide recommendations, Expert Consensus Statements were formulated. Based on low quality evidence from one RCT, we recommend direct bypass surgery in adult patients with haemorrhagic presentation. For ischaemic adult patients and children, we suggest revascularization surgery using direct or combined technique rather than indirect, in the presence of haemodynamic impairment and with an interval of 6-12 weeks between the last cerebrovascular event and surgery. In the absence of robust trial, an Expert Consensus was reached recommending long-term antiplatelet therapy in non-haemorrhagic MMA, as it may reduce risk of embolic stroke. We also agreed on the utility of performing pre- and post- operative haemodynamic and posterior cerebral artery assessment. There were insufficient data to recommend systematic variant screening of RNF213 p.R4810K. Additionally, we suggest that long-term MMA neuroimaging follow up may guide therapeutic decision making by assessing the disease progression. We believe that this guideline, which is the first comprehensive European guideline on MMA management using GRADE methods will assist clinicians to choose the most effective management strategy for MMA.


Asunto(s)
Accidente Cerebrovascular Embólico , Enfermedad de Moyamoya , Accidente Cerebrovascular , Adulto , Niño , Humanos , Accidente Cerebrovascular/diagnóstico , Enfermedad de Moyamoya/diagnóstico , Progresión de la Enfermedad , Adenosina Trifosfatasas , Ubiquitina-Proteína Ligasas
19.
Neurol Sci ; 44(8): 2811-2819, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-36905449

RESUMEN

BACKGROUND: To quantify the degree of ganglion cell degeneration through spectral domain optical coherence tomography (SD-OCT) in adult patients with post-stroke homonymous visual field defect. METHODS: Fifty patients with acquired visual field defect due to stroke (mean age = 61 years) and thirty healthy controls (mean age = 58 years) were included. Mean deviation (MD) and pattern standard deviation (PSD), average peripapillary retinal nerve fibre layer thickness (pRNLF-AVG), average ganglion cell complex thickness (GCC-AVG), global loss volume (GLV) and focal loss volume (FLV) were measured. Patients were divided according to the damaged vascular territories (occipital vs. parieto-occipital) and stroke type (ischaemic vs. haemorrhagic). Group analysis was conducted with ANOVA and multiple regressions. RESULTS: pRNFL-AVG was significantly decreased among patients with lesions in parieto-occipital territories compared to controls and to patients with lesions in occipital territories (p = .04), with no differences with respect to stroke type. GCC-AVG, GLV and FLV differed in stroke patients and controls, regardless of stroke type and involved vascular territories. Age and elapsed time from stroke had a significant effect on pRNFL-AVG and GCC-AVG (p < .01), but not on MD and PSD. CONCLUSIONS: Reduction of SD-OCT parameters occurs following both ischaemic and haemorrhagic occipital stroke, but it is larger when the injury extends to parietal territories and increases as time since stroke increases. The size of visual field defect is unrelated to SD-OCT measurements. Macular GCC thinning appeared to be more sensitive than pRNFL in detecting retrograde retinal ganglion cell degeneration and its retinotopic pattern in stroke.


Asunto(s)
Células Ganglionares de la Retina , Accidente Cerebrovascular , Adulto , Humanos , Persona de Mediana Edad , Células Ganglionares de la Retina/patología , Campos Visuales , Fibras Nerviosas/patología , Retina , Trastornos de la Visión , Accidente Cerebrovascular/complicaciones , Accidente Cerebrovascular/diagnóstico por imagen , Accidente Cerebrovascular/patología , Tomografía de Coherencia Óptica/métodos
20.
Int J Rehabil Res ; 46(2): 151-156, 2023 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-36691780

RESUMEN

Stroke causes a significant reduction in health-related quality of life (HRQoL), and studies addressing its predictors often rely on models with few variables. This study aimed to assess the degree to which health status, health habits, and features of the environment predict HRQoL in stroke survivors with stable clinical condition. WHO Quality of Life questionnaire for old-Age subjects (WHOQOL-AGE) was used to assess HRQoL. We ran a multivariable linear regression to predict WHOQOL-AGE variation, entering measures of health state, bad habits, healthy behaviors, physical environment features, and social support. Patients were stroke survivors with a stable clinical condition, distance from acute event of more than 6 months, and National Institutes of Health Stroke Scale (NIHSS) of 10 or less. A total of 122 participants (47 females, 97 with ischemic stroke) were enrolled, the mean age was 64.1, mean NIHSS 2.9, and mean distance from the acute event was 5.1 years. State anxiety (ß = -0.202), trait anxiety (ß = -0.232), depression (ß = -0.255), social support (ß = 0.247), and functional independence (ß = -0.210) predicted WHOQOL-AGE variation (Adj. R2 = 0.549). Our results show that psychological symptoms, reduced social network, and functional dependence together have a negative impact on HRQoL. These elements, which are partly stroke-specific, should be taken into account in the recovery process to enhance patients' health outcomes.


Asunto(s)
Rehabilitación de Accidente Cerebrovascular , Accidente Cerebrovascular , Femenino , Humanos , Persona de Mediana Edad , Calidad de Vida/psicología , Estudios Transversales , Depresión/psicología , Accidente Cerebrovascular/psicología
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