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1. Hippocampal atrophy in people with memory deficits: results from the population-based IPREA study

Author

Ferrarini L, van Lew B, Reiber JH, Gandin C, Galluzzo L, Scafato E, FrisoniGB, Milles J, Pievani M, IPREA Working Group: Scafato E, Farchi G, Giampaoli S, Mariotti S, Ghirini S, Martire S, Di Pasquale L, Maggi S, Crepaldi G, Enzi G, Gallina P, Inzitari D, Baldereschi M, Di Carlo A, Frisoni GB, Galluzzi S, Gandolfo C, Conti M, Postacchini D, Cruciani G, Giuli C, Capurso A, Solfrizzi V, Panza F, Rengo F, ABETE, PASQUALE, Motta M, Negrini R, Forti P, Tabanelli P, Cocchi A, Zuccal G, Cacciatore F, Calabrese C, Sica G, Estraneo A, Foundation SM, Consoli D, Naso F, Torcasio G, Valentia V, Mecocci P, Rinaldi P, Serafini V, Senin U., Ferrarini, L, van Lew, B, Reiber, Jh, Gandin, C, Galluzzo, L, Scafato, E, Frisonigb, Milles, J, Pievani, M, IPREA Working Group: Scafato, E, Farchi, G, Giampaoli, S, Mariotti, S, Ghirini, S, Martire, S, Di Pasquale, L, Maggi, S, Crepaldi, G, Enzi, G, Gallina, P, Inzitari, D, Baldereschi, M, Di Carlo, A, Frisoni, Gb, Galluzzi, S, Gandolfo, C, Conti, M, Postacchini, D, Cruciani, G, Giuli, C, Capurso, A, Solfrizzi, V, Panza, F, Rengo, F, Abete, Pasquale, Motta, M, Negrini, R, Forti, P, Tabanelli, P, Cocchi, A, Zuccal, G, Cacciatore, F, Calabrese, C, Sica, G, Estraneo, A, Foundation, Sm, Consoli, D, Naso, F, Torcasio, G, Valentia, V, Mecocci, P, Rinaldi, P, Serafini, V, and Senin, U.

Subjects
medicine.medical_specialty, education.field_of_study, business.industry, Population, Not Otherwise Specified, Hippocampus, Audiology, Hippocampal formation, medicine.disease, population-based, memory, Psychiatry and Mental health, Clinical Psychology, Atrophy, hippocampal atrophy, medicine, Dementia, Memory impairment, Geriatrics and Gerontology, Alzheimer's disease, business, education, Gerontology, MRI
Abstract

Background:Clinical studies have shown that hippocampal atrophy is present before dementia in people with memory deficits and can predict dementia development. The question remains whether this association holds in the general population. This is of interest for the possible use of hippocampal atrophy to screen population for preventive interventions. The aim of this study was to assess hippocampal volume and shape abnormalities in elderly adults with memory deficits in a cross-sectional population-based study.Methods:We included individuals participating in the Italian Project on the Epidemiology of Alzheimer Disease (IPREA) study: 75 cognitively normal individuals (HC), 31 individuals with memory deficits (MEM), and 31 individuals with memory deficits not otherwise specified (MEMnos). Hippocampal volumes and shape were extracted through manual tracing and the growing and adaptive meshes (GAMEs) shape-modeling algorithm. We investigated between-group differences in hippocampal volume and shape, and correlations with memory deficits.Results:In MEM participants, hippocampal volumes were significantly smaller than in HC and were mildly associated with worse memory scores. Memory-associated shape changes mapped to the anterior hippocampus. Shape-based analysis detected no significant difference between MEM and HC, while MEMnos showed shape changes in the posterior hippocampus compared with HC and MEM groups.Conclusions:These findings support the discriminant validity of hippocampal volumetry as a biomarker of memory impairment in the general population. The detection of shape changes in MEMnos but not in MEM participants suggests that shape-based biomarkers might lack sensitivity to detect Alzheimer's-like pathology in the general population.

Published
2014

2. Prevalence of aging-associated cognitive decline in an Italian elderly population: Results from cross-sectional phase of Italian Project on Epidemiology of Alzheimer's disease (IPREA)

Author

Scafato E, Gandin C, Galluzzo L, Ghirini S, Cacciatore F, Capurso A, Solfrizzi V, Panza F, Cocchi A, Consoli D, Enzi G, Frisoni G, B, Gandolfo C, Giampaoli S, Inzitari D, Maggi S, Crepaldi G, Mariotti S, Mecocci P, Motta M, Negrini R, Postacchini D, Rengo F, Farchi G, Martire S, Gallina P, Baldereschi M, Di Carlo A, Conti M, Galluzzi S, Cruciani G, Giuli C, ABETE, PASQUALE, Forti P, Tabanelli P, Zuccalà G, Calabrese C, Sica G, Estraneo A, Naso F, Torcasio G, Rinaldi P, Serafini V, Senin U., Scafato, E, Gandin, C, Galluzzo, L, Ghirini, S, Cacciatore, F, Capurso, A, Solfrizzi, V, Panza, F, Cocchi, A, Consoli, D, Enzi, G, Frisoni, G, B, Gandolfo, C, Giampaoli, S, Inzitari, D, Maggi, S, Crepaldi, G, Mariotti, S, Mecocci, P, Motta, M, Negrini, R, Postacchini, D, Rengo, F, Farchi, G, Martire, S, Gallina, P, Baldereschi, M, Di Carlo, A, Conti, M, Galluzzi, S, Cruciani, G, Giuli, C, Abete, Pasquale, Forti, P, Tabanelli, P, Zuccalà, G, Calabrese, C, Sica, G, Estraneo, A, Naso, F, Torcasio, G, Rinaldi, P, Serafini, V, and Senin, U.

Abstract

Background and aims: The prevalence of the preclinical phase of dementia varies greatly, according to the diagnostic criteria and assessment procedures applied. The purpose of this study was to estimate the prevalence of cognitive impairment according to the Aging-Associated Cognitive Decline (AACD) diagnostic criteria in an Italian elderly population. Methods: In a multicenter community-based prospective study, 4785 Italian subjects aged 65-84 years, randomly selected from the registries of 12 Italian municipalities, were assessed by personal and informant interviews, physical and neurological examinations and an extensive neuropsychological battery. Results: Of these older subjects, 274 (9.2%) fulfilled all the AACD criteria, whereas 561 (18.8%) fulfilled only 3 of them (AACD-3). When the two groups diagnosed according to AACD criteria (AACD and AACD- 3) were merged, the prevalence was 28.0% (28.3% for men, 27.6% for women). Two other groups of subjects were also identified: a) Subjects with Objective evidence of Cognitive Decline without cognitive complaints (OCD), 508 (17.0%), i.e., subjects with documented neuropsychological deficits, although neither subjects nor informants reported cognitive complaints; and b) Subjects with Cognitive Complaints without objective demonstrable cognitive deficits (CC), 44 (1.5%), i.e., subjects and/or informants reported cognitive complaints without evidence of neuropsychological deficits. Thus, taking into account the additional OCD group, a total of 1343 persons with cognitive impairment without dementia (45.0%) was identified. Conclusions: On the basis of our results, we estimate that 45% of our population-based Italian sample aged 65-84 years had some kind of cognitive deficits without dementia.

Published
2010

3. Pharmacovigilance in pharmaceutical companies: An overview.

Author

Mammì M, Citraro R, Torcasio G, Cusato G, Palleria C, and di Paola ED

Abstract

Pharmacovigilance is responsible for monitoring the safety of medicines in normal clinical use and during clinical trials. In the light of the experience acquired and following an assessment by the Commission of the Union system of pharmacovigilance, it has become clear that it is necessary to take measures in order to improve the operation of Union law on the pharmacovigilance of medicinal products for human use. Regulation (EU) No 1235/2010 and Directive 2010/84/EU introduced new legislation on pharmacovigilance. The marketing authorization holder should be responsible for continuously monitoring the safety of its medicinal products for human use, for informing the authorities of any changes that might have an impact on the marketing authorization, and for ensuring that the product information is kept up-to-date. Marketing authorization holders (MAH) record all suspected adverse reactions occurring in the European Union or in the third countries, and which are brought to their attention spontaneously by the patients or their health care, or occurring in the context of post-authorization study. For all medicinal products is mandatory to maintain a pharmacovigilance system master file (PSMF). According to the Legislative Decree 219/2006 the MAH must submit to the competent authorities the information on suspected adverse reactions of a medicinal product, in form of a periodic safety update reports (PSURs).

Published
2013
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4. Effects of ethanol on the development of genetically determined epilepsies in rats.

Author

Russo E, Citraro R, De Fazio S, Torcasio G, De Sarro G, and Di Paola ED

Subjects
Animals, Brain abnormalities, Brain drug effects, Brain physiopathology, Central Nervous System Depressants toxicity, Convulsants pharmacology, Disease Models, Animal, Epilepsy physiopathology, Female, Genetic Predisposition to Disease genetics, Immunity, Innate genetics, Male, Pregnancy, Prenatal Exposure Delayed Effects physiopathology, Rats, Rats, Mutant Strains, Species Specificity, Alcohol-Induced Disorders, Nervous System physiopathology, Epilepsy chemically induced, Epilepsy genetics, Ethanol toxicity, Fetal Alcohol Spectrum Disorders physiopathology, Prenatal Exposure Delayed Effects metabolism
Abstract

In the present study, we provide evidences for a differential effect of perinatal alcohol exposure with a direct correlation to the genetic background on the development of seizures. Ethanol (EtOH) is a widely used psychoactive substance that exerts its action by affecting multiple targets in the central nervous system. EtOH is known to interact with almost all identified neurotransmitters although its effects on excitatory and inhibitory amino acid neurotransmissions are considered to be particularly important in the mediation of its behavioural effects. Prenatal exposure to alcohol is associated with a wide variety of offspring's abnormalities which lead to the so called foetal alcohol syndrome (FAS), which is also related to a higher susceptibility to convulsions. In our study, a rat strain of convulsive epilepsy, the GEPRs rats, displayed an increase of seizure susceptibility after foetal exposure to this teratogenic drug, while a non-convulsive rat strain of absence epilepsy, the WAG/Rij rat, did not fully develop its characteristic features. However, when all groups of rat where tested for pentyletetrazole-induced convulsion, animals perinatally treated with ethanol were less responsive in comparison to their respective controls. These results are in agreement with previous reports showing how the genetic background can directly influence the teratogenic effects of alcohol, and this can be strictly related to the variability in the observation of offspring anomalies in humans which has lead to a 5-category classification system for individuals exposed to alcohol in uterus.

Published
2008
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