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1.
Community Ment Health J ; 59(8): 1610-1618, 2023 11.
Article in English | MEDLINE | ID: mdl-37318671

ABSTRACT

Autistic people may have difficulties in finding and keeping a job. Studies highlight that only 34% of autistic people are employed compared to 54% of people with disability. 58% of people with ASD have never had a job. Social cognition and cognitive strains may also have a significant impact on working life. The primary goal of our project is supporting autistic people through a training program focused on neuropsychological and social skills training to improve participant' job skills. Through an Individual Placement and Support model the project involved various Partners to guide, identify skills and interests, provide cognitive and psychological support for autistic people. Results highlighted neuropsychological training efficacy, especially in inhibitory control and good rate of employment status at the end of the project. Findings are encouraging and underline the importance of a multidisciplinary approach to support autistic people in their work life considering their expectations, needs and inclinations.


Subject(s)
Autistic Disorder , Humans , Adult , Autistic Disorder/psychology , Social Skills , Cognitive Training , Pilot Projects , Employment/psychology
2.
Eur Rev Med Pharmacol Sci ; 25(3): 1472-1484, 2021 02.
Article in English | MEDLINE | ID: mdl-33629317

ABSTRACT

OBJECTIVE: Different types of vasculitis can occur in patients with inflammatory bowel disease [IBD], but large vessels vasculitis seems to be the most prevalent. Indeed, the presence of both Crohn's disease [CD] and Takayasu's arteritis [TAK] has previously been reported, with higher prevalence in young women between the second and the third decade of life. This article aims to provide clinicians with an accurate picture of the most common clinical features and current treatment strategy for patients with both CD and TAK. PATIENTS AND METHODS: We described the coexistence of CD and TAK in three young women and also performed an extensive literature review about the association of these two immune-related disorders. Research on PubMed server was performed typing the terms "Takayasu's arteritis and inflammatory bowel disease", "Takayasu's arteritis and Crohn's disease", and "Takayasu's arteritis and Ulcerative colitis". RESULTS: Although the association of CD with TAK is uncommon, due to the severity of both diseases, concomitance in the same patient may significantly complicate the diagnostic and therapeutic work-up. In addition, since TAK can compromise intestinal vasculature, it may possibly exacerbate the clinical course of patients with IBD. All patients we reported underwent surgery due to IBD complications and two of them started biological therapy with different outcomes. CONCLUSIONS: Early detention of these conditions has a great importance for both gastroenterologists and immunologists, for ensuring a tailored multidisciplinary management, possibly in order to identify a common therapy for these two immune-related disorders.


Subject(s)
Crohn Disease/diagnosis , Takayasu Arteritis/diagnosis , Adolescent , Female , Humans , Retrospective Studies , Young Adult
3.
Eur J Neurol ; 28(1): 209-219, 2021 01.
Article in English | MEDLINE | ID: mdl-32924246

ABSTRACT

BACKGROUND AND PURPOSE: The aim was to assess functional and radiological outcomes after bridging therapy (intravenous thrombolysis plus mechanical thrombectomy) versus direct mechanical thrombectomy (MT) in unknown onset stroke patients. METHODS: A cohort study was conducted on prospectively collected data from unknown onset stroke patients who received endovascular procedures at ≤6 h from symptom recognition or awakening time. RESULTS: Of the 349 patients with a 10-point Alberta Stroke Program Early Computed Tomography Score (ASPECTS), 248 received bridging and 101 received direct MT. Of the 134 patients with 6-9-point ASPECTS, 123 received bridging and 111 received direct MT. Each patient treated with bridging was propensity score matched with a patient treated with direct MT for age, sex, study period, pre-stroke disability, stroke severity, type of stroke onset, symptom recognition to groin time (or awakening to groin time), ASPECTS and procedure time. In the two matched groups with 10-point ASPECTS (n = 73 vs. n = 73), bridging was associated with higher rates of excellent outcome (46.6% vs. 28.8%; odds ratio 2.302, 95% confidence interval 1.010-5.244) and successful recanalization (83.6% vs. 63%; odds ratio 3.028, 95% confidence interval 1.369-6.693) compared with direct MT; no significant association was found between bridging and direct MT with regard to rate of symptomatic intracerebral hemorrhage (0% vs. 1.4%). In the two matched groups with 6-9-point ASPECTS (n = 45 vs. n = 45), no significant associations were found between bridging and direct MT with regard to rates of excellent functional outcome (44.4% vs. 31.1%), successful recanalization (73.3% vs. 76.5%) and symptomatic intracerebral hemorrhage (0% vs. 0%). CONCLUSIONS: Bridging at ≤ 6 h of symptom recognition or awakening time was associated with better functional and radiological outcomes in unknown onset stroke patients with 10-point ASPECTS.


Subject(s)
Brain Ischemia , Stroke , Alberta , Brain Ischemia/drug therapy , Cohort Studies , Humans , Retrospective Studies , Stroke/diagnostic imaging , Stroke/drug therapy , Thrombectomy , Thrombolytic Therapy , Treatment Outcome
4.
Endocr Connect ; 8(5): 528-535, 2019 May 01.
Article in English | MEDLINE | ID: mdl-30939449

ABSTRACT

In aggressive pituitary tumors (PT) showing local invasion or growth/recurrence despite multimodal conventional treatment, temozolomide (TMZ) is considered a further therapeutic option, while little data are available on peptide receptor radionuclide therapy (PRRT). We analyzed PRRT effectiveness, safety and long-term outcome in three patients with aggressive PT, also reviewing the current literature. Patient #1 (F, giant prolactinoma) received five cycles (total dose 37 GBq) of 111In-DTPA-octreotide over 23 months, after unsuccessful surgery and long-term dopamine-agonist treatment. Patient #2 (M, giant prolactinoma) underwent two cycles (12.6 GBq) of 177Lu-DOTATOC after multiple surgeries, radiosurgery and TMZ. In patient #3 (F, non-functioning PT), five cycles (29.8 GBq) of 177Lu-DOTATOC followed five surgeries, radiotherapy and TMZ. Eleven more cases of PRRT-treated aggressive PT emerged from literature. Patient #1 showed tumor shrinkage and visual/neurological amelioration over 8-year follow-up, while the other PTs continued to grow causing blindness and neuro-cognitive disorders (patient #2) or monolateral amaurosis (patient #3). No adverse effects were reported. Including the patients from literature, 4/13 presented tumor shrinkage and clinical/biochemical improvement after PRRT. Response did not correlate with patients' gender or age, neither with used radionuclide/peptide, but PRRT failure was significantly associated with previous TMZ treatment. Overall, adverse effects occurred only in two patients. PRRT was successful in 1/3 of patients with aggressive PT, and in 4/5 of those not previously treated with TMZ, representing a safe option after unsuccessful multimodal treatment. However, at present, considering the few data, PRRT should be considered only in an experimental setting.

5.
Eur J Neurol ; 26(3): 442-e35, 2019 03.
Article in English | MEDLINE | ID: mdl-30312517

ABSTRACT

BACKGROUND AND PURPOSE: Late-onset Pompe disease (LOPD) is a rare, multisystem disorder that is well established to mainly impair skeletal muscle function. Systematic studies exploring brain functions in LOPD are lacking. The aim of this study was to detect morphological and functional brain alterations as well as neuropsychological impairment in LOPD. METHODS: We studied 21 patients (10 male, mean age 49 ± 18.4 years) with defined diagnosis of LOPD, divided into two groups: one with pre-symptomatic hyperCKemia with no muscle weakness and the second with limb-girdle muscle weakness. All patients underwent 3T magnetic resonance imaging (MRI) to obtain morphological/angiographic evaluation as well as normalized cortical brain volume and resting-state functional MRI. Fazekas score was applied to quantify white matter lesions, whereas Smoker's criteria were used to examine dolichoectasia. A complete neuropsychological assessment was performed. RESULTS: The MRI data showed that 12/21 patients (57%) demonstrated signs of cerebral vasculopathy, with a Fazekas score >2 in 67%. According to Smoker's criteria, 11/21 patients (52%) had a dolichoectasia of the vertebrobasilar system; an intracranial aneurysm was detected in 3/21 patients (14%). Resting-state functional MRI demonstrated significantly decreased brain connectivity in the salience network with a more relevant reduction in the bilateral middle and superior frontal gyrus. Gray matter atrophy correlated with age and disease duration. A mild impairment in executive functions was also identified. CONCLUSIONS: In this LOPD cohort the results showed morphological and functional brain alterations with mild neuropsychological dysfunction, mainly in the limb-girdle muscle weakness group. Cerebrovascular alterations seemed to be not related to common risk factors, suggesting a major role of enzymatic deficiency in the pathogenesis of brain abnormalities.


Subject(s)
Cognitive Dysfunction , Connectome/methods , Glycogen Storage Disease Type II , Gray Matter , Neuropsychological Tests , Adolescent , Adult , Age of Onset , Aged , Cognitive Dysfunction/diagnostic imaging , Cognitive Dysfunction/etiology , Cognitive Dysfunction/physiopathology , Female , Glycogen Storage Disease Type II/complications , Glycogen Storage Disease Type II/diagnostic imaging , Glycogen Storage Disease Type II/pathology , Glycogen Storage Disease Type II/physiopathology , Gray Matter/diagnostic imaging , Gray Matter/pathology , Gray Matter/physiopathology , Humans , Magnetic Resonance Imaging , Male , Middle Aged , Young Adult
6.
Platelets ; 29(5): 463-467, 2018 Jul.
Article in English | MEDLINE | ID: mdl-28635382

ABSTRACT

Platelet-derived factors are biomaterials that might accelerate healing process in oral, maxillofacial, and several other applications. Release of specific factors by platelet concentrates is critical to achieving a successful outcome. Here, we have shown that platelet-rich fibrin (PRF) clots were beneficial sources of leukocytes, which may directly affect the release of chemokines and growth factors. When compared with the standard leukocyte-PRF (L-PRF), the experimental low-force modified procedure [defined as advanced-PRF (A-PRF)] entrapped the same content of viable leukocytes, released a similar amount of inflammatory cytokines, but secreted 3-, 1.6-, 3-, and 1.2-fold higher levels of Eotaxin, CCL5, platelet-derived growth factor (PDGF) and vascular endothelial growth factor (VEGF), respectively. A leukocyte-free scaffold, such as plasma rich in growth factors (PRGF), released only platelet-specific factors and, in particular, the F3 fraction, the richest in growth factors, secreted higher amount of CCL5 and PDGF compared to F1 and F2 fractions. In conclusion, different procedures and leukocyte content affect cytokine, chemokines, and growth factor release from platelet derivatives, which may be helpful in different clinical settings.


Subject(s)
Blood Platelets/metabolism , Chemokines/metabolism , Intercellular Signaling Peptides and Proteins/metabolism , Leukocytes/metabolism , Adult , Female , Humans , Male , Platelet-Rich Plasma/metabolism
8.
Clin Neuroradiol ; 27(3): 275-281, 2017 Sep.
Article in English | MEDLINE | ID: mdl-26695889

ABSTRACT

PURPOSE: Complex claustral connection network was widely demonstrated both in humans and animals. Moreover, several studies have suggested that claustral connections directly involve also the contralateral hemisphere. Detection of contralateral cortico-claustral and inter-claustral connections was reported mainly in animals and only partially in humans. The main purpose of this study was to provide more robust tractography-driven support of the existence of inter-hemispheric claustral connections in humans, by means of a dedicated optimized tractographic protocol. METHODS: Fifteen healthy subjects were examined by means of an advanced magnetic resonance imaging-based probabilistic constrained spherical deconvolution tractographic protocol. Moreover, quantitative diffusion parameters were extracted by each reconstructed pathway. RESULTS: In this study, further imaging-based support on the possible existence in humans of contralateral cortico-claustral and inter-claustral connections was provided. These connections were found to involve almost all the superior portion of each claustrum, showing a topographical organization. Moreover, the detection of inter-claustral connections passing through the anterior commissure was reported, for the first time, in humans. CONCLUSIONS: The possible existence of inter-claustral and cortico-claustral contralateral pathways might provide the morphological basis for the complex functional phenomena observed in previous studies. Furthermore, these connections might have several important clinical implications, since they might explain how the inter-hemispheric coordination governed by the claustrum, as well as the functional recovery subsequent to damages involving one claustrum, takes place.


Subject(s)
Basal Ganglia/anatomy & histology , Adult , Animals , Basal Ganglia/diagnostic imaging , Brain , Cerebral Cortex , Diffusion Magnetic Resonance Imaging , Female , Humans , Limbic System , Male
9.
Clin Genet ; 90(2): 156-60, 2016 Aug.
Article in English | MEDLINE | ID: mdl-26818466

ABSTRACT

Inherited ataxias are a group of heterogeneous disorders in children or adults but their genetic definition remains still undetermined in almost half of the patients. However, CoQ10 deficiency is a rare cause of cerebellar ataxia and ADCK3 is the most frequent gene associated with this defect. We herein report a 48 year old man, who presented with dysarthria and walking difficulties. Brain magnetic resonance imaging showed a marked cerebellar atrophy. Serum lactate was elevated. Tissues obtained by muscle and skin biopsies were studied for biochemical and genetic characterization. Skeletal muscle biochemistry revealed decreased activities of complexes I+III and II+III and a severe reduction of CoQ10 , while skin fibroblasts showed normal CoQ10 levels. A mild loss of maximal respiration capacity was also found by high-resolution respirometry. Molecular studies identified a novel homozygous deletion (c.504del_CT) in ADCK3, causing a premature stop codon. Western blot analysis revealed marked reduction of ADCK3 protein levels. Treatment with CoQ10 was started and, after 1 year follow-up, patient neurological condition slightly improved. This report suggests the importance of investigating mitochondrial function and, in particular, muscle CoQ10 levels, in patients with adult-onset cerebellar ataxia. Moreover, clinical stabilization by CoQ10 supplementation emphasizes the importance of an early diagnosis.


Subject(s)
Ataxia/genetics , Cerebellar Ataxia/genetics , Codon, Nonsense , Electron Transport Chain Complex Proteins/genetics , Mitochondrial Diseases/genetics , Mitochondrial Proteins/genetics , Muscle Weakness/genetics , Ubiquinone/analogs & derivatives , Ubiquinone/deficiency , Ataxia/complications , Ataxia/diagnosis , Ataxia/physiopathology , Cerebellar Ataxia/complications , Cerebellar Ataxia/diagnosis , Cerebellar Ataxia/physiopathology , Delayed Diagnosis , Electron Transport Chain Complex Proteins/deficiency , Fibroblasts/metabolism , Gene Expression , Homozygote , Humans , Lactic Acid/blood , Magnetic Resonance Imaging , Male , Middle Aged , Mitochondria/metabolism , Mitochondria/pathology , Mitochondrial Diseases/complications , Mitochondrial Diseases/diagnosis , Mitochondrial Diseases/physiopathology , Mitochondrial Proteins/deficiency , Muscle Weakness/complications , Muscle Weakness/diagnosis , Muscle Weakness/physiopathology , Muscle, Skeletal/metabolism , Muscle, Skeletal/physiopathology , Skin/metabolism , Ubiquinone/genetics
10.
Clin Genet ; 89(1): 20-6, 2016 Jan.
Article in English | MEDLINE | ID: mdl-25615817

ABSTRACT

X-linked protoporphyria (XLP), a rare erythropoietic porphyria, results from terminal exon gain-of-function mutations in the ALAS2 gene causing increased ALAS2 activity and markedly increased erythrocyte protoporphyrin levels. Patients present with severe cutaneous photosensitivity and may develop liver dysfunction. XLP was originally reported as X-linked dominant with 100% penetrance in males and females. We characterized 11 heterozygous females from six unrelated XLP families and show markedly varying phenotypic and biochemical heterogeneity, reflecting the degree of X-chromosomal inactivation of the mutant gene. ALAS2 sequencing identified the specific mutation and confirmed heterozygosity among the females. Clinical history, plasma and erythrocyte protoporphyrin levels were determined. Methylation assays of the androgen receptor and zinc-finger MYM type 3 short tandem repeat polymorphisms estimated each heterozygotes X-chromosomal inactivation pattern. Heterozygotes with equal or increased skewing, favoring expression of the wild-type allele had no clinical symptoms and only slightly increased erythrocyte protoporphyrin concentrations and/or frequency of protoporphyrin-containing peripheral blood fluorocytes. When the wild-type allele was preferentially inactivated, heterozygous females manifested the disease phenotype and had both higher erythrocyte protoporphyrin levels and circulating fluorocytes. These findings confirm that the previous dominant classification of XLP is inappropriate and genetically misleading, as the disorder is more appropriately designated XLP.


Subject(s)
Genes, X-Linked , Genetic Diseases, X-Linked/diagnosis , Genetic Diseases, X-Linked/genetics , Phenotype , Protoporphyria, Erythropoietic/diagnosis , Protoporphyria, Erythropoietic/genetics , X Chromosome Inactivation , Alleles , Erythrocytes/metabolism , Female , Genetic Diseases, X-Linked/metabolism , Genotype , Humans , Male , Mutation , Nuclear Proteins/genetics , Pedigree , Porphyrins/metabolism , Protoporphyria, Erythropoietic/metabolism , Protoporphyrins/metabolism , Receptors, Androgen/genetics
11.
Eur Spine J ; 24 Suppl 7: 912-7, 2015 Nov.
Article in English | MEDLINE | ID: mdl-26458933

ABSTRACT

INTRODUCTION: Sacral chordoma is a rare low-to-intermediate grade malignant tumour. The mainstay of treatment is still surgery with en bloc and wide resection margins, which can grant the best chances of a long-term control or cure of this disease. The first aim of this paper is to collect data about survival, time to local recurrence and metastasis among patients affected by sacral chordoma and primarily treated with surgery. The second aim is to analyze the influence of level resection, tumor volume and surgical margins on local recurrence. MATERIALS AND METHODS: The study population was composed of 14 patients treated with sacral chordoma resection at the National Tumour Institute of Naples-Pascale (Italy) from January 2000 to June 2013. The median follow-up was 84 months (range 24-132 months). The follow-up was characterized by: standard radiographs, MRI, and a CT scan of the chest annually. Time to recurrence or metastasis was calculated from the date of resection to the date of diagnosis of first recurrence or metastasis. RESULTS: Out of all the patients, six died (42.86 %) during the follow-up; 6 (42.86 %) had local recurrence; 4 (28.57 %) had metastasis. At univariate analysis wide surgical margins (R0) were associated with increased survival up to a local recurrence (OR = 0.0286; 95 % CI = 0.0014-0.5739; P = 0.026); the level of resection (OR = 3.33; 95 % CI = 0.3619-30.7025; P = 0.592) and tumour volume (P = 1) did not show a statistically significant correlation. DISCUSSION: Based on our experience, we hope all patients to be treated by surgery, the only good standard treatment of this disease. The resection should result in margins as wide as possible. For these reasons, it is essential for this disease to be treated in highly specialized centres because only a complete surgery can offer a chance to care for these patients. CONCLUSIONS: Solid survival at long-term follow-up can be achieved by a surgical resection performed with wide margins.


Subject(s)
Chordoma/surgery , Sacrum/surgery , Spinal Neoplasms/surgery , Aged , Chordoma/mortality , Chordoma/pathology , Female , Follow-Up Studies , Humans , Male , Middle Aged , Neoplasm Metastasis , Neoplasm Recurrence, Local/diagnosis , Neoplasm Recurrence, Local/etiology , Prognosis , Retrospective Studies , Spinal Neoplasms/mortality , Spinal Neoplasms/pathology , Survival Analysis , Treatment Outcome
12.
J Med Case Rep ; 9: 229, 2015 Oct 04.
Article in English | MEDLINE | ID: mdl-26438353

ABSTRACT

INTRODUCTION: Klippel-Feil syndrome is characterized by a congenital fusion of cervical vertebrae. Intracranial teratomas are nongerminomatous germ cell tumors and they account for 0.3 to 0.9% of all intracranial tumors. Teratomas with malignant transformation refer to lesions which give rise to malignant cancer of somatic type. The association between tumors of dermoid origin and Klippel-Feil malformation is extremely rare. Only 23 other cases have so far been reported, and only one case of dermoid tumor with areas of dedifferentiation on squamous cell carcinoma has been described. CASE PRESENTATION: We report the case of a 72-year-old white man with a 2-year history of gait and balance disturbances. A brain magnetic resonance imaging revealed a fourth ventricle neoplastic process with infiltrative features. He was operated through a suboccipital craniectomy with a C1 laminotomy and bilateral vertebral artery transposition. At 6-months follow-up, magnetic resonance imaging showed an early regrowth of the fourth ventricle tumor, with the same radiological features. CONCLUSIONS: Patients with Klippel-Feil malformation could develop posterior fossa dermoid tumors. The malignant potential of such tumors must be considered and surgery is recommended. Particular attention must be focused on the histopathological analysis in order to identify possible foci of malignant transformation.


Subject(s)
Cervical Vertebrae/pathology , Cranial Fossa, Posterior/pathology , Klippel-Feil Syndrome/diagnosis , Teratoma/diagnosis , Aged , Cervical Vertebrae/abnormalities , Cervical Vertebrae/diagnostic imaging , Cranial Fossa, Posterior/abnormalities , Cranial Fossa, Posterior/diagnostic imaging , Cranial Fossa, Posterior/surgery , Dermoid Cyst/pathology , Gait Apraxia/etiology , Humans , Klippel-Feil Syndrome/complications , Klippel-Feil Syndrome/diagnostic imaging , Klippel-Feil Syndrome/pathology , Magnetic Resonance Imaging , Male , Teratoma/diagnostic imaging , Teratoma/pathology , Teratoma/surgery , Tomography, X-Ray Computed , Treatment Outcome
13.
AJNR Am J Neuroradiol ; 36(10): 1853-8, 2015 Oct.
Article in English | MEDLINE | ID: mdl-26113071

ABSTRACT

BACKGROUND AND PURPOSE: MR imaging tractography is increasingly used to perform noninvasive presurgical planning for brain gliomas. Recently, constrained spherical deconvolution tractography was shown to overcome several limitations of commonly used DTI tractography. The purpose of our study was to evaluate WM tract alterations of both the corticospinal tract and arcuate fasciculus in patients with high-grade gliomas, through qualitative and quantitative analysis of probabilistic constrained spherical deconvolution tractography, to perform reliable presurgical planning. MATERIALS AND METHODS: Twenty patients with frontoparietal high-grade gliomas were recruited and evaluated by using a 3T MR imaging scanner with both morphologic and diffusion sequences (60 diffusion directions). We performed probabilistic constrained spherical deconvolution tractography and tract quantification following diffusion tensor parameters: fractional anisotropy; mean diffusivity; linear, planar, and spherical coefficients. RESULTS: In all patients, we obtained tractographic reconstructions of the medial and lateral portions of the corticospinal tract and arcuate fasciculus, both on the glioma-affected and nonaffected sides of the brain. The affected lateral corticospinal tract and the arcuate fasciculus showed decreased fractional anisotropy (z = 2.51, n = 20, P = .006; z = 2.52, n = 20, P = .006) and linear coefficient (z = 2.51, n = 20, P = .006; z = 2.52, n = 20, P = .006) along with increased spherical coefficient (z = -2.51, n = 20, P = .006; z = -2.52, n = 20, P = .006). Mean diffusivity values were increased only in the lateral corticospinal tract (z = -2.53, n = 20, P = .006). CONCLUSIONS: In this study, we demonstrated that probabilistic constrained spherical deconvolution can provide essential qualitative and quantitative information in presurgical planning, which was not otherwise achievable with DTI. These findings can have important implications for the surgical approach and postoperative outcome in patients with glioma.


Subject(s)
Brain Neoplasms/diagnosis , Brain Neoplasms/pathology , Diffusion Tensor Imaging/methods , Glioma/diagnosis , Glioma/pathology , Image Interpretation, Computer-Assisted/methods , Magnetic Resonance Imaging/methods , Neural Pathways/pathology , Pyramidal Tracts/pathology , Adult , Aged , Brain/pathology , Female , Humans , Male , Middle Aged , Neoplasm Grading
15.
Clin Neuroradiol ; 24(1): 29-36, 2014 Mar.
Article in English | MEDLINE | ID: mdl-23525407

ABSTRACT

PURPOSE: Several authors have demonstrated that preoperative embolization of meningiomas reduces blood loss during surgery. However, preoperative embolization is still under debate. Aim of this study is the retrospective evaluation of necrosis score, surgical time, and transfused blood volume, on patients affected by intracranial meningiomas treated with preoperative embolization before surgery, compared with a control group treated only with surgery. METHOD: Twenty-eight patients with meningiomas were subjected to a preoperative embolization with polyvinyl alcohol (PVA). These patients were divided into two groups: group 1, patients with preoperative embolization performed at least 7 days before surgery; and group 2, patients with preoperative embolization performed less than 7 days before surgery. A statistical evaluation was made by comparing necrosis score, surgical time, and transfused blood volume of these groups. Then, we compared these parameters also with group 3, which included patients with surgically treated meningioma who did not undergo preoperative embolization. RESULTS: Surgery time and transfused blood volume were significantly lower in patients who had been embolized at least 7 days before definitive surgery. Furthermore, large confluent areas of necrosis were significantly more frequent in patients with a larger time span between embolization and surgery. CONCLUSION: Preoperative embolization with PVA in patients with intracranial meningiomas is safe and effective, as it reduces the volume of transfused blood during surgical operation. However, patients should undergo surgery at least 7 days after embolization, as a shorter time interval has been correlated with a longer surgical time and a higher transfused blood volume.


Subject(s)
Blood Transfusion , Embolization, Therapeutic/methods , Meningeal Neoplasms/therapy , Meningioma/therapy , Neurosurgical Procedures/methods , Operative Time , Polyvinyl Alcohol/therapeutic use , Blood Volume Determination , Combined Modality Therapy , Female , Hemostatics/therapeutic use , Humans , Male , Meningeal Neoplasms/diagnosis , Meningioma/diagnosis , Middle Aged , Necrosis/diagnosis , Necrosis/prevention & control , Preoperative Care/methods , Radiographic Image Interpretation, Computer-Assisted/methods , Radiography, Interventional/methods , Retrospective Studies , Severity of Illness Index , Treatment Outcome
16.
J Biol Regul Homeost Agents ; 27(3): 827-39, 2013.
Article in English | MEDLINE | ID: mdl-24152847

ABSTRACT

The Angiopoietin/Tie system is a key regulator of vascular remodeling, maturation, angiogenesis and lymphangiogenesis. In humans there are three angiopoietins: Angiopoietin-1 (Ang1), Angiopoietin-2 (Ang2), and Angiopoietin-4 (Ang4). Ang1 and Ang2 are the best characterized angiopoietins. The angiopoietin receptor system consists of two type I tyrosine kinase receptors (Tie1 and Tie2). Tie2 binds all known angiopoietins. We sought to characterize Ang1, Ang2, Tie1 and Tie2 expression and functions in human basophils and mast cells. Basophils, LAD-2 cells and Human Lung Mast Cells (HLMCs) constitutively express Ang1 and Ang2 mRNA. Intracellular staining for Ang1 and Ang2 was stronger in basophils than in mast cells. Immunoelectron microscopy demonstrated Ang1 in cytoplasmic vesicles of basophils. The protein kinase C activators phorbol diester (PMA) and bryostatin 1 (Bryo1) stimulated basophils to rapidly release a large amount of Ang1. PMA-induced Ang1 release was inhibited by brefeldin A. Tie1 and Tie2 mRNAs were expressed in basophils, LAD-2 and HLMCs. Basophils, LAD-2 and HLMCs expressed Tie1 on the cell surface. HLMCs and LAD-2 expressed Tie2 on the cell surface, whereas basophils did not. Ang1, but not Ang2, induced migration of mast cells through the engagement of Tie2. Neither Ang1 nor Ang2 induced basophil chemotaxis. We have identified a novel mechanism of cross-talk between human basophils and mast cells mediated by the Ang1/Tie2 system that might be relevant in the orchestration of inflammatory and neoplastic angiogenesis.


Subject(s)
Angiopoietin-1/physiology , Angiopoietin-2/physiology , Basophils/physiology , Mast Cells/physiology , Receptor, TIE-1/physiology , Receptor, TIE-2/physiology , Angiopoietin-1/analysis , Angiopoietin-2/analysis , Basophils/chemistry , Cells, Cultured , Chemotaxis , Humans , Lymphangiogenesis , Mast Cells/chemistry , Neovascularization, Physiologic , Receptor, TIE-1/analysis , Receptor, TIE-2/analysis
17.
Neuroradiol J ; 26(3): 277-83, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23859282

ABSTRACT

The cognitive dysmetria theory suggests a disconnectivity between the dorsolateral prefrontal cortex, thalami and vermis to explain the pathophysiology of schizophrenia. This study investigated the metabolic integrity of this neurologic circuit in patients with schizophrenia using proton magnetic resonance spectroscopy (H-MRS). Twenty-two patients with schizophrenia and twelve control subjects were studied. Metabolites concentrations were evaluated by a single-voxel technique in the prefrontal cortex, thalami and vermis. To our knowledge, this is the first H-MRS experience with concomitant evaluation of these regions in schizophrenic patients. We found no significant statistical difference in N-AA, Cho and Cr absolute concentrations and N-AA/Cho, N-AA/Cr and Cho/Cr ratios between the schizophrenic patients and control group. At the vermis, we found a constant spectrum with low levels of N-AA and higher levels of Cho and Cr. Our experience does not clearly support or refute the cognitive dysmetria theory. The consistency of metabolic findings in the cerebellar vermis could represent an important datum, highlighting the specificity of metabolic and functional activity in this region.


Subject(s)
Cerebellum/metabolism , Magnetic Resonance Spectroscopy , Prefrontal Cortex/metabolism , Schizophrenia/pathology , Thalamus/metabolism , Adult , Analysis of Variance , Aspartic Acid/metabolism , Cerebellum/pathology , Choline/metabolism , Creatine/metabolism , Female , Humans , Magnetic Resonance Imaging , Male , Prefrontal Cortex/pathology , Protons , Psychiatric Status Rating Scales , Schizophrenia/metabolism , Thalamus/pathology
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