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Trevisan V, Ghedini E, Signoretto M, Pinna F, Bianchi C. Quantitative determination of carbon in titania photocatalysts by temperature programmed oxidation method. Microchem J 2014. [DOI: 10.1016/j.microc.2013.10.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Carpiniello B, Pinna F, Velluzzi F, Loviselli A. Mental disorders in patients with metabolic syndrome. The key role of central obesity. Eat Weight Disord 2012; 17:e259-66. [PMID: 23299201 DOI: 10.3275/8809] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND The Authors sought to evaluate current prevalence of mental disorders in patients affected by metabolic syndrome compared with patients affected by central obesity alone. METHODS 186 (63.5%) patients affected by central obesity and 107 (36.5%) affected by metabolic syndrome according to ICF criteria were interviewed by means of SCID I. RESULTS Axis I current prevalence was respectively 45.7% and 44.9% among patients with central obesity and patients with metabolic syndrome, differences which were not significant. No statistically significant differences were found between groups as far as each single axis I diagnostic category was concerned. Moreover, current prevalence of any axis I, anxiety and mood disorders were independent of the number of components of metabolic syndrome. CONCLUSION metabolic syndrome is associated to an higher risk for current mental disorders, which seems to be mainly due to the strong association of central obesity to psychopathology.
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Menegazzo F, Signoretto M, Frison G, Pinna F, Strukul G, Manzoli M, Boccuzzi F. When high metal dispersion has a detrimental effect: Hydrogen peroxide direct synthesis under very mild and nonexplosive conditions catalyzed by Pd supported on silica. J Catal 2012. [DOI: 10.1016/j.jcat.2012.03.010] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Carpiniello B, Pinna F, Pili R, Velluzzi F, Loviselli A. Mental disorders in obese patients with and without metabolic syndrome. Int J Psychiatry Med 2012; 42:369-75. [PMID: 22530399 DOI: 10.2190/pm.42.4.c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The authors sought to evaluate lifetime prevalence of mental disorders in patients affected by metabolic syndrome compared with patients affected by central obesity alone. METHODS One hundred eighty-six (63.5%) patients affected by central obesity and 107 (36.5%) affected by metabolic syndrome according to ICF criteria were interviewed by means of SCID I and SCID II. RESULTS Axis I and axis II lifetime prevalence were respectively 53.8% and 30.1% among patients with central obesity, 50.5% and 28% among patients with metabolic syndrome, differences which were not significant. No statistically significant differences were found between groups as far as each single axis I and II diagnostic category was considered. CONCLUSION Metabolic syndrome is not associated with a higher risk of mental disorders compared to central obesity alone.
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Pinna F, Lai L, Pirarba S, Orrù W, Velluzzi F, Loviselli A, Carpiniello B. Obesity, alexithymia and psychopathology: a case-control study. Eat Weight Disord 2011; 16:e164-70. [PMID: 21330781 DOI: 10.3275/7509] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVE The relationship between psychopathology and alexithymia in obese patients is uncertain. The present study was performed to evaluate this relationship in a clinical sample of patients attending a centre for the diagnosis and treatment of obesity compared to a matched sample of non-obese subjects. METHODS 293 consecutive obese patients (48 males, 245 females, mean age 45, 41±13.55 yrs; mean BMI 35.60±6.20) were compared with a control group made of 293 non-obese subjects (48 males, 245 females, mean age 45, 66±13.86 yrs; mean BMI 21.8±2.06); all subjects were interviewed by means of SCID I and SCID II together with several self-evaluation instruments including the TAS-20 (Toronto Alexithymia Scale) and SCL-90 (Symptom Check List, Revised). RESULTS Alexithymia was significantly more frequent among obese patients compared to "normal" controls (12.9% vs 6.9%, p=0.010); moreover obese patients achieved significantly higher mean scores on subscales 1 and 2 and on overall scale of the Toronto Alexithymia Scale; comorbidity with axis I/II disorders, in particular Binge Eating Disorder, was associated with a significantly higher frequency of alexithymic traits and higher scores at TAS. CONCLUSIONS Alexithymia and psychopathology are strongly correlated among obese patients seeking treatment. Routine evaluation of personality traits and comorbid psychopathology may be relevant in treatment of obesity.
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Carpiniello B, Mellino G, Pintore S, Puddu L, Pinna F. [Effectiveness of antipsychotics in schizophrenia and related disorders. Results of a naturalistic study]. LA CLINICA TERAPEUTICA 2011; 162:331-341. [PMID: 21912821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
INTRODUCTION The present study aims to evaluate effectiveness of antipsychotics in a cohort of chronic outpatients affected by schizophrenia and related disorders. MATERIALS AND METHODS Three hundred chronic patients affected by schizophrenia (n=173), schizoaffective (n=117) and delusional (n=60) disorder who were in treament with antipsychotics on 1.3.2008 were considered in the study; effectiveness of antipsychotic treatment was evaluated by means of rates of all cause discontinuation in a 12 months period (31.3.2008-31.3.2009) and of "overall duration of treatment" (DT) (duration of treatment retrospectively evaluated on the basis of clinical records+duration of treatment prospectively evaluated during the 12-months follow up). RESULTS Discontinuation of treatment was registered in 25% of patients (29% due to side effects, 14% due to scarce adherence, 11% due to lack of efficacy, 22% due to more causes). Clozapine (7%), Risperidon Long-acting (10%), Typical Antipsychotics depot (11%) and Olanzapine were associated to lower rates of all causes discontinuation. Overall mean duration of antipsychotic treatment was 18± 32 months, with statistically significant differences between drugs (F=4.65, p=0.000). Clozapine (65 mo), Olanzapine (50 mo), butyrophenones (49 mo), typical antipsychotics depot (48 mo), and risperidone (47.5 mo) were the antipsychotics with a longer duration of treatment. Only Clozapine showed a significantly longer DT than any other antipsychotic medication excluding buthyrrohenones. CONCLUSIONS Rates of all cause discontinuation of antipsychotics appear to be somewhat lower than expected on the basis of pragmatic studied published in the last years; similarly overall duration of treatment seems to be longer. Clozapine is associated to a higher overall effectiveness respect to any other atypical antipsychotic.
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Calvisi DF, Pinna F, Ladu S, Pellegrino R, Simile MM, Frau M, De Miglio MR, Tomasi ML, Sanna V, Muroni MR, Feo F, Pascale RM. Forkhead box M1B is a determinant of rat susceptibility to hepatocarcinogenesis and sustains ERK activity in human HCC. Gut 2009; 58:679-87. [PMID: 19136513 DOI: 10.1136/gut.2008.152652] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
BACKGROUND AND AIMS Previous studies indicate unrestrained cell cycle progression in liver lesions from hepatocarcinogenesis-susceptible Fisher 344 (F344) rats and a block of G(1)-S transition in corresponding lesions from resistant Brown Norway (BN) rats. Here, the role of the Forkhead box M1B (FOXM1) gene during hepatocarcinogenesis in both rat models and human hepatocellular carcinoma (HCC) was assessed. METHODS AND RESULTS Levels of FOXM1 and its targets were determined by immunoprecipitation and real-time PCR analyses in rat and human samples. FOXM1 function was investigated by either FOXM1 silencing or overexpression in human HCC cell lines. Activation of FOXM1 and its targets (Aurora Kinose A, Cdc2, cyclin B1, Nek2) occurred earlier and was most pronounced in liver lesions from F344 than BN rats, leading to the highest number of Cdc2-cyclin B1 complexes (implying the highest G(2)-M transition) in F344 rats. In human HCC, the level of FOXM1 progressively increased from surrounding non-tumorous livers to HCC, reaching the highest levels in tumours with poorer prognosis (as defined by patients' length of survival). Furthermore, expression levels of FOXM1 directly correlated with the proliferation index, genomic instability rate and microvessel density, and inversely with apoptosis. FOXM1 upregulation was due to extracellular signal-regulated kinase (ERK) and glioblastoma-associated oncogene 1 (GLI1) combined activity, and its overexpression resulted in increased proliferation and angiogenesis and reduced apoptosis in human HCC cell lines. Conversely, FOXM1 suppression led to decreased ERK activity, reduced proliferation and angiogenesis, and massive apoptosis of human HCC cell lines. CONCLUSIONS FOXM1 upregulation is associated with the acquisition of a susceptible phenotype in rats and influences human HCC development and prognosis.
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Carpiniello B, Corda E, Maccioni R, Pinna F. [Schizophrenia, obesity and pharmacotherapy-associated weight gain]. LA CLINICA TERAPEUTICA 2008; 159:299-306. [PMID: 18998030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
BACKGROUND Obesity seems to be very frequent among schizophrenics, partly due to psychotropic medications. To examine this possibility the authors compared the distribution of Body Mass Index and of Abdominal Obesity among an outpatient sample of schizophrenics, comparing their data with those of the Italian population as a whole. MATERIALS AND METHODS Weight, height, BMI and waist circumference were evaluated in 126 schizophrenic spectrum outpatients (51 F; 75 M, mean age 43.7 +/- 13.3 yrs) receiving treatment in a university community mental health centre. RESULTS Mean BMI of the sample was 26.8 +/- 4.9,without any significant difference between genders (females = 25.9 +/- 4.9; males = 27.4 +/- 4.9). The prevalence of obesity (BMI>or=30) in the sample was 26.2%, 2.8 times higher that of Italian average (9.8%). 46.8% out of the patients was affected by abdominal obesity measuring waist circumference, a prevalence 1.7 times higher that of the Italian average (31%). Abdominal obesity was significantly more frequent among females (F = 60.5%; M= 37.3%, p 0.05). 53% out of those patients who were under treatment with atypical antipsychotics respect to 25% of those who were not under treatment (p>0.05) and 71% of those who were submitted to an association of typical and atypical antipsychotics respect to those patients who were not treated with this association (p 0.05) were affected by abdominal obesity. CONCLUSIONS Also in Italy schizophrenic were found more frequently obese than the corresponding general population. Female schizophrenics and patients who undergone treatment with atypical antipsychotics or with the combination of typical and atypical antipsychotics were significantly more at risk for abdominal obesity.
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Marongiu L, Capra F, Zorcolo L, Pinna F, Scintu F, Casula G. [Role of endoanal ultrasound in the evaluation of fistula-in-ano treated with a seton]. MINERVA CHIR 2005; 60:279-84. [PMID: 16166927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
AIM The aim of this study was to define the role of endorectal ultrasound in the evaluation of transphincteric fistula-in-ano treated with a seton. METHODS Fifty-one patients affected by complex fistula-in-ano and treated with the application of a drain seton at the Second Unit of General Surgery of the University of Cagliari were recruited for the study. Clinical and ultrasonographic (US) evaluation, with transanal scans, were performed in each case before operation. Intraoperative demonstration of a transphincteric track was an indication for a partial fistulotomy with the application of a seton, tied up loosely around the external sphincter. If clinical and US evaluation, during follow-up, revealed a good drainage of the fistula by the seton and its superficialization, definitive fistulotomy was performed. RESULTS Endoanal US had an 88.2% accuracy. Sclerosis around the seton was observed in 9 patients (17.6%); in other 9 cases a surgical toilette of the track was necessary because of the bad drainage carried out by the seton. Definitive fistulotomy was performed in 35 patients, whilst 16 are still bearer of the seton. After a mean follow-up of 39.5 months, 1 recurrence (2.9%) has occurred. Functional results were satisfactory: 55.9% of the patients has a perfect continence and 88.2% has a Wexner's incontinence score of up to 5. CONCLUSIONS At skilled institutions, endoanal ultrasound allows to optimize the therapy of transphincteric fistula-in-ano treated with a seton and contribute to obtain good results in terms of recurrence and functional outcomes.
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Abate S, Centi G, Melada S, Perathoner S, Pinna F, Strukul G. Preparation, performances and reaction mechanism for the synthesis of H2O2 from H2 and O2 based on palladium membranes. Catal Today 2005. [DOI: 10.1016/j.cattod.2005.03.054] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Melada S, Signoretto M, Somma F, Pinna F, Cerrato G, Meligrana G, Morterra C. Gas- and Liquid-Phase Reactions on Sulphated Zirconia Prepared by Precipitation. Catal Letters 2004. [DOI: 10.1023/b:catl.0000020545.04726.e2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Marongiu L, Capra F, Zorcolo L, Pinna F, Scintu F, Casula G. [Role of transrectal echography in the diagnosis and treatment of villous tumors of the rectum]. TUMORI JOURNAL 2003; 89:109-11. [PMID: 12903564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
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Cannas A, Spissu A, Floris GL, Congia S, Saddi MV, Melis M, Mascia MM, Pinna F, Tuveri A, Solla P, Milia A, Giagheddu M, Tacconi P. Bipolar affective disorder and Parkinson's disease: a rare, insidious and often unrecognized association. Neurol Sci 2002; 23 Suppl 2:S67-8. [PMID: 12548347 DOI: 10.1007/s100720200073] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Five patients (4 women) with Parkinson's disease (PD) and primary major psychiatric disorder (PMPD) meeting DSM-IV criteria for the diagnosis of bipolar affective disorder (BAD) were studied. Four patients had early onset PD. Four developed a severe psychiatric disorder a few years after starting dopaminergic therapy in presence of a mild motor disability and a mild cognitive impairment, with no evidence of cerebral atrophy at CT or MRI. Two patients developed a clear manic episode; the other three presented a severe depressive episode (in one case featuring a Cotard syndrome). None showed previous signs of long term L-dopa treatment syndrome (LTS), hallucinosis or other minor psychiatric disorders. The two manic episodes occurred shortly after an increase of dopaminergic therapy and in one case rapid cyclic mood fluctuations were observed. At the onset of psychiatric symptoms, all patients had an unspecific diagnosis of chronic delusional hallucinatory psychosis (CDHP).
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Morterra C, Cerrato G, Ardizzone S, Bianchi CL, Signoretto M, Pinna F. Surface features and catalytic activity of sulfated zirconia catalysts from hydrothermal precursors. Phys Chem Chem Phys 2002. [DOI: 10.1039/b110444f] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Sapoli M, De Santis A, Marziano NC, Pinna F, Zingales A. Equilibria of nitric acid in sulfuric and perchloric acid at 25.degree.C by Raman and UV spectroscopy. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100259a032] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Morterra C, Cerrato G, Pinna F, Signoretto M. Brosted Acidity of a Superacid Sulfate-Doped ZrO2 System. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100098a036] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Savini I, Santucci R, Di Venere A, Rosato N, Strukul G, Pinna F, Avigliano L. Catalytic and spectroscopic properties of cytochrome-c, horseradish peroxidase, and ascorbate oxidase embedded in a sol-gel silica matrix as a function of gelation time. Appl Biochem Biotechnol 1999; 82:227-41. [PMID: 10813026 DOI: 10.1385/abab:82:3:227] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/1999] [Revised: 11/19/1999] [Accepted: 11/22/1999] [Indexed: 11/11/2022]
Abstract
In this study, we investigated the optical features of the redox metal-dependent proteins cytochrome-c, horseradish peroxidase (HRP), and ascorbate oxidase embedded in a sol-gel-processed silica matrix as a function of gelation time. Circular dichroism, absorbance, and fluorescence spectroscopies revealed that the sol-gel process affects the complex structure of the dimeric ascorbate oxidase (although the prosthetic coppers still remain bound to the enzyme) but not that of monomeric cytochrome-c and HRP. Any modifications in ascorbate oxidase occurred in the initial gelation phase; the drying process induced no further alterations and the enzyme remained stable for months. Unfolding-refolding experiments on cytochrome-c revealed severely restricted motility in the protein moiety in the xerogel, the concentrated matrix that forms after drying. The diffusion time of the solvent within the matrix, which regulated the enzyme-substrate reaction rate, depended on the thickness of the monolith, not on the dryness of the specimen.
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Ciccariello S, Benedetti A, Pinna F, Strukul G, Juszczyk W, Brumberger H. X-Ray study of metallic particle sintering in Pt-NaY zeolite catalysts. Phys Chem Chem Phys 1999. [DOI: 10.1039/a807694d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Boccuzzi F, Cerrato G, Pinna F, Strukul G. FTIR, UV−Vis, and HRTEM Study of Au/ZrO2 Catalyst: Reduced Reactivity in the CO−O2 Reaction of Electron-Deficient Gold Sites Present on the Used Samples. J Phys Chem B 1998. [DOI: 10.1021/jp980890t] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Palumbo G, Avigliano L, Strukul G, Pinna F, Del Principe D, D'Angelo I, Annicchiarico-Petruzzelli M, Locardi B, Rosato N. Fibroblast growth and polymorphonuclear granulocyte activation in the presence of a new biologically active sol-gel glass. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 1997; 8:417-421. [PMID: 15348724 DOI: 10.1023/a:1018553505001] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The search for chemical devices to be used in clinical orthopaedics must find substances that are biocompatible and do not elicit inflammatory responses in vivo. To this end, a new form of glass has been prepared, composed of 8.1% CaO, 2.9% P2O5, 6.7% N2O5 and 82.3% SiO2, using sol-gel procedures. In order to evaluate the in vitro biocompatibility of this glass, the proliferation of cultured murine fibroblasts and the activation of human polymorphonuclear leukocytes has been studied. The performance of the sol-gel glass has been compared with that of a biocompatible non-resorbable soda-lime glass. Unlike the soda-lime glass, the sol-gel glass neither caused the inhibition of fibroblast growth nor elicited a marked inflammatory response by polymorphonuclear leukocytes, as demonstrated by chemiluminescence assay for reactive oxygen metabolites.
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Pinna F, Signoretto M, Strukul G, Polizzi S, Pernicone N. Pd-SiO2 catalysts. stability of β-PdHx as a function of Pd dispersion. ACTA ACUST UNITED AC 1997. [DOI: 10.1007/bf02477683] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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