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Bevione F, Martini M, Toppino F, Longo P, Abbate-Daga G, Brustolin A, Panero M. Cognitive Impulsivity in Anorexia Nervosa in Correlation with Eating and Obsessive Symptoms: A Comparison with Healthy Controls. Nutrients 2024; 16:1156. [PMID: 38674849 PMCID: PMC11054498 DOI: 10.3390/nu16081156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
Impulsivity in eating disorders (ED) has been historically focused on bingeing-purging symptoms, evidencing lower levels in restricting subtypes. In the recent literature, obsessive-compulsive disorder (OCD) has been described as characterized by high cognitive impulsivity. This specific impulsivity factor has been rarely studied in anorexia nervosa (AN). In this study, 53 inpatients with anorexia nervosa and 59 healthy controls completed the following questionnaires: the Barratt Impulsiveness Scale (BIS-11), the Obsessive-Compulsive Inventory (OCI), the Eating Disorders Inventory-2 (EDI-2), the State-Trait Anxiety Inventory (STAI), and the Beck Depression Inventory (BDI). AN individuals showed significantly increased levels of cognitive instability but no difference in global score and other subscales of impulsivity compared to the healthy controls. Among AN individuals, cognitive instability emerged as being associated with the global score and obsession subscale of the OCI. It was also significantly associated with interoceptive awareness and impulse regulation. Cognitive instability was the main predictor of obsessive thoughts and behaviors in AN. Our study supports the hypothesis of AN as being characterized by high cognitive instability and adds the result that the cognitive domain of impulsivity may be associated with the presence of obsessive symptoms, specifically obsessive thoughts.
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Affiliation(s)
| | | | | | | | - Giovanni Abbate-Daga
- Eating Disorders Unit, Department of Neuroscience “Rita Levi Montalcini”, University of Turin, via Cherasco 15, 10126 Turin, Italy; (F.B.); (M.M.); (F.T.); (P.L.); (A.B.); (M.P.)
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Longo P, Bevione F, Amodeo L, Martini M, Panero M, Abbate-Daga G. Perfectionism in anorexia nervosa: Associations with clinical picture and personality traits. Clin Psychol Psychother 2023. [PMID: 37970961 DOI: 10.1002/cpp.2931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 10/18/2023] [Accepted: 10/18/2023] [Indexed: 11/19/2023]
Abstract
Although many researchers addressed the topics, no consistent data are currently available regarding the relationship between perfectionism and personality traits in anorexia nervosa (AN). The present study aimed to assess differences between high- and low-perfectionism groups of patients with AN and to identify which variables show the strongest association with perfectionism. A group of inpatients with AN (n = 193) was recruited and completed a battery of self-report questionnaires regarding eating-related and general psychopathology, perfectionism, and personality. On the basis of perfectionism scores, patients were divided into high- and low-perfectionism groups. High-perfectionist patients displayed higher eating-related and general psychopathology; higher depressive, cyclothymic, irritable and anxious temperament, and lower self-directedness, cooperativeness and self-esteem. Perfectionism was associated with the drive for thinness, cooperativeness, self-esteem and anxious temperament. On the basis of the two personality traits most strongly correlated with perfectionism (i.e., cooperativeness and anxious temperament), patients could be correctly assigned to the high- or low-perfectionism group by an algorithm. The study suggests that perfectionism in AN is related to eating psychopathology, especially of restrictive type, and personality features such as cooperativeness and anxious temperament. These findings confirm the important role of perfectionism in AN, not only concerning eating behaviour but personality as well.
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Affiliation(s)
- Paola Longo
- Eating disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Francesco Bevione
- Eating disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Laura Amodeo
- Eating disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Matteo Martini
- Eating disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Matteo Panero
- Eating disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Giovanni Abbate-Daga
- Eating disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
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Colle L, Hilviu D, Boggio M, Toso A, Longo P, Abbate-Daga G, Garbarini F, Fossataro C. Abnormal sense of agency in eating disorders. Sci Rep 2023; 13:14176. [PMID: 37648816 PMCID: PMC10469170 DOI: 10.1038/s41598-023-41345-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 08/24/2023] [Indexed: 09/01/2023] Open
Abstract
The feeling of controlling one's own actions and, through them, impacting the external environment (i.e. Sense of Agency-SoA) can be relevant in the eating disorders (EDs) symptomatology. Yet, it has been poorly investigated. This study aims to implicitly assess SoA exploiting the Sensory Attenuation paradigm in two groups of EDs patients (Anorexia Nervosa Restrictive and Anorexia Nervosa Binge-Purging or Bulimia Nervosa) compared to a control group. We find that controls perceive self-generated stimuli as less intense than other-generated ones showing the classic pattern of sensory attenuation. By contrast, EDs patients show the opposite pattern, with self-generated perceived as more intense than other-generated stimuli. This result indicates an alteration of the implicit component of the feeling of control in EDs patients, thus suggesting a potential implication of these results for the clinical practice and the treatment of EDs symptomatology.
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Affiliation(s)
- Livia Colle
- Department of Psychology, University of Turin, Turin, Italy
| | - Dize Hilviu
- Department of Psychology, University of Turin, Turin, Italy
| | - Monica Boggio
- Department of Psychology, University of Turin, Turin, Italy
| | - Alessandra Toso
- Department of Neuroscience, University of Turin, AOU Città della Salute e della Scienza, Turin, Italy
| | - Paola Longo
- Department of Neuroscience, University of Turin, AOU Città della Salute e della Scienza, Turin, Italy
| | - Giovanni Abbate-Daga
- Department of Neuroscience, University of Turin, AOU Città della Salute e della Scienza, Turin, Italy
| | | | - Carlotta Fossataro
- MANIBUS Lab, Department of Psychology, University of Turin, Turin, Italy.
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Martini M, Longo P, Tamarin T, Toppino F, Brustolin A, Abbate-Daga G, Panero M. Exploring Caloric Restriction in Inpatients with Eating Disorders: Cross-Sectional and Longitudinal Associations with Body Dissatisfaction, Body Avoidance, Clinical Factors, and Psychopathology. Nutrients 2023; 15:3409. [PMID: 37571346 PMCID: PMC10420884 DOI: 10.3390/nu15153409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/27/2023] [Accepted: 07/29/2023] [Indexed: 08/13/2023] Open
Abstract
Reduction in food intake is an important feature of eating disorders (EDs). However, whereas self-reported cognitive control over food (i.e., dietary restraint) is commonly assessed, we are not aware of any study evaluating the actual reduction in caloric intake (i.e., caloric restriction, CR) and its relationships with psychopathological, clinical, and anamnestic factors in individuals with EDs. In this study, we quantified caloric intake, CR, and weight suppression in 225 ED inpatients and explored significant relationships with self-reported eating symptoms, body dissatisfaction, body avoidance, personality, and affective symptoms. For underweight inpatients (n = 192), baseline predictors of caloric intake and restriction at discharge were assessed through a data-driven approach. CR at admission was significantly related to eating symptomatology, state anxiety, and body image. In regression models, CR, higher BMI, binge-purging symptoms, and the interaction between weight suppression and CR were significantly related to body dissatisfaction. The best psychopathological predictors of caloric intake and restriction at discharge for underweight inpatients were perfectionistic concern over mistakes and state anxiety. These results suggest that caloric restriction is associated to relevant ED features and warrant for a multidimensional assessment of ED psychopathology.
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Affiliation(s)
| | | | | | | | | | - Giovanni Abbate-Daga
- Eating Disorders Center, Department of Neuroscience “Rita Levi Montalcini”, University of Turin, Via Cherasco 11, 10126 Turin, Italy; (M.M.); (P.L.); (T.T.); (F.T.); (A.B.); (M.P.)
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Martini M, Longo P, Delsedime N, Abbate-Daga G, Panero M. Increased General, Eating, and Body-Related Psychopathology in Inpatients in a Specialized Eating Disorders Unit after the Beginning of the COVID-19 Pandemic: A Retrospective Comparison with the Pre-Pandemic Period. J Clin Med 2023; 12:jcm12020573. [PMID: 36675502 PMCID: PMC9866300 DOI: 10.3390/jcm12020573] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/03/2023] [Accepted: 01/09/2023] [Indexed: 01/13/2023] Open
Abstract
The study of the effects of the COVID-19 pandemic on individuals who attended mental health services is needed to identify the specific vulnerabilities associated to this challenging period. Despite several analyses reporting the worsening of eating disorders symptomatology after the beginning of the pandemic, characterizations of adult inpatients with eating disorders are still lacking. We conducted a retrospective analysis to assess whether adult individuals who underwent hospitalization in a specialized eating disorders unit in the two years after the beginning of the COVID-19 pandemic differed in clinical presentation, psychopathological measures, and treatment outcomes from inpatients hospitalized in the two years before. In the comparison between the two groups, the individuals who began treatment after the start of the pandemic presented with more physical hyperactivity and more severe psychopathological scores in most of the areas investigated, with differences in eating symptoms still evident at discharge. Notably, body-related symptoms (i.e., body shape concerns, body checking, body avoidance) were associated with the pandemic, and also for inpatients with extreme anorexia nervosa. This retrospective analysis does not allow us to separate the impact of COVID-19 from other potentially relevant co-occurring factors; however, these findings help in understanding how the pandemic could have affected individuals that needed specialized intensive treatment.
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Abstract
Dissociation in anorexia nervosa (AN) is common (literature reported 29% of dissociative disorders in eating disorders) and higher in patients with binge-purging AN (BP-AN) than in those with restricter AN (R-AN). However, the distinction between somatoform (SomD) and psychoform dissociation (PsyD) is understudied. We aimed to assess the differences in PsyD and SomD, eating-related, general, and body-related psychopathology, and childhood trauma between subtypes of AN. Then, we attempted to describe a subgroup of patients with AN with marked SomD comparing them to patients without SomD, also controlling the results for PsyD and AN subtypes. Inpatients with AN (n = 111; 109 women and 2 men) completed self-reported questionnaires evaluating dissociation, eating-related, body-related, and general psychopathology, and childhood abuses. Patients with BP-AN reported higher SomD and PsyD and a more severe clinical picture than those with R-AN. The SomD-group (n = 41) showed higher eating concerns, trait-anxiety, body-related variables, and sexual/physical abuse compared to the no-SomD group (n = 70), independently of AN subtype and PsyD symptoms. Results described particular features of patients with AN and SomD. Data, clinically, suggest a careful assessment, for both SomD and PsyD, especially when a history of bodily-impacting trauma is present, potentially fostering dissociation-informed interventions.
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Affiliation(s)
- Paola Longo
- Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Enrica Marzola
- Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Matteo Martini
- Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Laura Amodeo
- Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Giovanni Abbate-Daga
- Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
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Longo P, Toppino F, Martini M, Panero M, De Bacco C, Marzola E, Abbate-Daga G. Diagnostic Concordance between Research and Clinical-Based Assessments of Psychiatric Comorbidity in Anorexia Nervosa. J Clin Med 2022; 11:jcm11247419. [PMID: 36556034 PMCID: PMC9782669 DOI: 10.3390/jcm11247419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
The literature has reported poor concordance in the assessment of psychiatric conditions, and inhomogeneity in the prevalence of psychiatric comorbidities in Anorexia Nervosa (AN). We aimed to investigate concordance level between clinicians' and researchers' diagnoses of psychiatric comorbidity in AN and differences in eating and general psychopathology between patients with and without psychiatric comorbidity assessed by clinicians versus researchers. A clinical psychiatrist interviewed 122 patients with AN; then a researcher administered the Structured and Clinical Interview for DSM-5 (SCID-5). Participants completed the Eating Disorder Examination Questionnaire (EDE-Q), the State-Trait Anxiety Inventory (STAI), and the Beck Depression Inventory (BDI). The agreement between clinicians and researchers was poor for all diagnoses but obsessive-compulsive disorder and substance use disorder. Patients with comorbid disorders diagnosed by researchers reported more severe eating and general psychopathology than those without SCID-comorbidity. The differences between patients with and without comorbidities assessed by a clinician were smaller. Two approaches to psychiatry comorbidity assessment emerged: SCID-5 diagnoses yield a precise and rigorous assessment, while clinicians tend to consider some symptoms as secondary to the eating disorder rather than as part of another psychiatric condition, seeing the clinical picture as a whole. Overall, the study highlights the importance of carefully assessing comorbidity in AN.
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Marzola E, Martini M, Longo P, Toppino F, Bevione F, Delsedime N, Abbate-Daga G, Preti A. Psychometric properties of the Italian body shape questionnaire: an investigation of its reliability, factorial, concurrent, and criterion validity. Eat Weight Disord 2022; 27:3637-3648. [PMID: 36352341 PMCID: PMC9803762 DOI: 10.1007/s40519-022-01503-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 10/25/2022] [Indexed: 11/11/2022] Open
Abstract
PURPOSE This study was set up to investigate the reliability, factorial, concurrent, and criterion validity of the Italian version of the 34-item Body Shape Questionnaire (BSQ) and its shorter versions. METHODS The study included 231 patients diagnosed with an eating disorder and 58 putatively healthy people (comparison sample). The Italian BSQ-34 was administered to participants together with the Hamilton Depression Rating Scale and the Hamilton Anxiety Rating Scale. Information on body mass index, caloric intake at baseline, and the number of episodes of self-vomiting per week was also acquired. RESULTS Cronbach's alpha of BSQ-34 was 0.971 (95% confidence interval [CI] 0.965-0.976) in patients and 0.960 (0.944-0.974) in controls. Test-retest stability in patients (n = 69), measured with intraclass correlation coefficient, was 0.987 (0.983-0.991). Confirmatory factor analysis of the single-factor model yielded acceptable fit for all versions of the BSQ. On all BSQ versions, patients scored higher than controls with a large effect size when calculated as Cliff's delta. BMI and mean caloric intake at baseline had a stronger association with BSQ-34 than levels of anxiety and depression. The analysis with the receiver operating characteristics (ROC) curve showed that the BSQ-34 distinguished patients with an eating disorder from controls with good accuracy (Area Under the Curve = 86.5; 95% CI 82.2-90.7). CONCLUSION The Italian version of the BSQ possesses good psychometric properties, in both the long and the shortened versions, and it can be applied to measure body dissatisfaction for both clinical and research purposes. LEVEL OF EVIDENCE Level III, Evidence obtained from well-designed cohort or case-control analytic studies.
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Affiliation(s)
- Enrica Marzola
- Eating Disorders Unit, Department of Neuroscience, University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Matteo Martini
- Eating Disorders Unit, Department of Neuroscience, University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Paola Longo
- Eating Disorders Unit, Department of Neuroscience, University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Federica Toppino
- Eating Disorders Unit, Department of Neuroscience, University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Francesco Bevione
- Eating Disorders Unit, Department of Neuroscience, University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Nadia Delsedime
- Eating Disorders Unit, Department of Neuroscience, University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Giovanni Abbate-Daga
- Eating Disorders Unit, Department of Neuroscience, University of Turin, Via Cherasco 15, 10126, Turin, Italy
| | - Antonio Preti
- Eating Disorders Unit, Department of Neuroscience, University of Turin, Via Cherasco 15, 10126, Turin, Italy.
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Marzola E, Panero M, Longo P, Martini M, Fernàndez-Aranda F, Kaye WH, Abbate-Daga G. Research in eating disorders: the misunderstanding of supposing serious mental illnesses as a niche specialty. Eat Weight Disord 2022; 27:3005-3016. [PMID: 36085407 PMCID: PMC9462607 DOI: 10.1007/s40519-022-01473-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 08/21/2022] [Indexed: 01/04/2023] Open
Abstract
PURPOSE Eating disorders (EDs) are mental illnesses with severe consequences and high mortality rates. Notwithstanding, EDs are considered a niche specialty making it often difficult for researchers to publish in high-impact journals. Subsequently, research on EDs receives less funding than other fields of psychiatry potentially slowing treatment progress. This study aimed to compare research vitality between EDs and schizophrenia focusing on: number and type of publications; top-cited articles; geographical distribution of top-ten publishing countries; journal distribution of scientific production as measured by bibliometric analysis; funded research and collaborations. METHODS We used the Scopus database, then we adopted the Bibliometrix R-package software with the web interface app Biblioshiny. We included in the analyses 1,916 papers on EDs and 6491 on schizophrenia. RESULTS The ED field published three times less than schizophrenia in top-ranking journals - with letters and notes particularly lacking-notwithstanding a comparable number of papers published per author. Only 50% of top-cited articles focused on EDs and a smaller pool of journals available for ED research (i.e., Zones 1 and 2 according to Bradford's law) emerged; journals publishing on EDs showed an overall lower rank compared to the schizophrenia field. Schizophrenia research was more geographically distributed and more funded; in contrast, a comparable collaboration index was found between the fields. CONCLUSION These data show that research on EDs is currently marginalized and top-rank journals are seldom achievable by researchers in EDs. Such difficulties in research dissemination entail potentially serious repercussions on clinical advancements. LEVEL OF EVIDENCE Level V: opinions of respected authorities, based on descriptive studies, narrative reviews, clinical experience, or reports of expert committees.
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Affiliation(s)
- Enrica Marzola
- Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Matteo Panero
- Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Paola Longo
- Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Matteo Martini
- Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Fernando Fernàndez-Aranda
- Department of Psychiatry, Bellvitge University Hospital, Barcelona, Spain
- CIBER Fisiopatologia Obesidad Y Nutrición (CIBERobn), Instituto de Salud Carlos III, Barcelona, Spain
- Department of Clinical Sciences, School of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
- Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Programme, Bellvitge Biomedical Research Institute (IDIBELL), 08908, Barcelona, Spain
| | - Walter H Kaye
- Department of Psychiatry, University of California, San Diego, San Diego, CA, USA
| | - Giovanni Abbate-Daga
- Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy.
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Panero M, Longo P, De Bacco C, Abbate-Daga G, Martini M. Shame, Guilt, and Self-Consciousness in Anorexia Nervosa. J Clin Med 2022; 11:jcm11226683. [PMID: 36431160 PMCID: PMC9694537 DOI: 10.3390/jcm11226683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/27/2022] [Accepted: 11/09/2022] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND the role of self-conscious emotions (SCE) such as shame and guilt in eating disorders (ED) has been systematically studied only in recent years, but it is still debated. This study aims to investigate the role of SCE in anorexia nervosa (AN), evaluating the role of self-consciousness. METHODS fifty-five individuals with AN and seventy-four healthy controls (HC) were enrolled and completed a battery of tests evaluating the proneness to feel shame and guilt, as well as comparing self-consciousness, eating, and general psychopathology. RESULTS individuals with AN showed a higher proneness to shame. Shame was correlated with body dissatisfaction and drive for thinness, which are core symptoms in AN, after controlling for scores of depression and anxiety. Proneness to guilt seemed to be less correlated with eating and body symptomatology, but it appeared to have a negative correlation with binge-purging symptoms. Furthermore, proneness to shame was independent of guilt or self-consciousness and the two groups did not differ regarding public and private self-consciousness. CONCLUSIONS shame is an important and independent factor in AN. Future research may offer progress in the development of shame-focused therapies.
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Longo P, Aloi M, Delsedime N, Rania M, Segura Garcia C, Abbate-Daga G, Marzola E. Different clusters of perfectionism in inpatients with anorexia nervosa and healthy controls. Eat Disord 2022; 30:540-555. [PMID: 34376118 DOI: 10.1080/10640266.2021.1938937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Perfectionism is a risk and maintaining factor for anorexia nervosa (AN) but studies on its classification are lacking. This study aimed to classify patients with AN and healthy controls (HCs) according to their perfectionism; to evaluate the association between perfectionism clusters and severity of general and eating psychopathology for both groups; to investigate the relationship between baseline perfectionism and hospitalization outcome for patients. A sample of 207 inpatients with AN and 292 HCs completed: Eating Disorders Inventory-2, Frost Multidimensional Perfectionism Scale, Beck Depression Inventory, and State- Trait Anxiety Inventory. Cluster analyses were run to classify participants according to their perfectionism scores. Three clusters (i.e., high, medium, low perfectionism) emerged for both patients with AN and HCs. The high perfectionism cluster was over-represented among patients. Both groups reported significant differences across clusters in eating-related difficulties. In AN, anxiety and depression severity varied across clusters according to perfectionism, but patients' baseline perfectionism was unrelated to hospitalization outcome. Inpatients with AN and HCs could be grouped in clusters of high, medium, and low perfectionism which also mirrored their eating psychopathology severity. Finally, hospitalization outcome was unrelated to inpatients' baseline perfectionism.
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Affiliation(s)
- Paola Longo
- Eating Disorders Center, Department of Neuroscience "Rita Levi Montalcini", University of Turin, Turin, Italy
| | - Matteo Aloi
- Department of Health Sciences, University "Magna Graecia" of Catanzaro, Catanzaro, Italy
| | - Nadia Delsedime
- Eating Disorders Center, Department of Neuroscience "Rita Levi Montalcini", University of Turin, Turin, Italy
| | - Marianna Rania
- Department of Health Sciences, University "Magna Graecia" of Catanzaro, Catanzaro, Italy
| | - Cristina Segura Garcia
- Department of Medical and Surgical Sciences, University "Magna Graecia" of Catanzaro, Catanzaro, Italy
| | - Giovanni Abbate-Daga
- Eating Disorders Center, Department of Neuroscience "Rita Levi Montalcini", University of Turin, Turin, Italy
| | - Enrica Marzola
- Eating Disorders Center, Department of Neuroscience "Rita Levi Montalcini", University of Turin, Turin, Italy
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Marzola E, Longo P, Sardella F, Delsedime N, Abbate-Daga G. Rehospitalization and "Revolving Door" in Anorexia Nervosa: Are There Any Predictors of Time to Readmission? Front Psychiatry 2021; 12:694223. [PMID: 34366923 PMCID: PMC8342847 DOI: 10.3389/fpsyt.2021.694223] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 06/08/2021] [Indexed: 12/27/2022] Open
Abstract
Objective: Anorexia nervosa (AN) is a severe psychiatric illness with multifactorial etiology and unsatisfactory treatment outcomes. Hospitalization is required for a substantial number of patients, and readmission (RA) commonly occurs. Some individuals need multiple hospitalizations sometimes over a short amount of time, thus, delineating the "revolving door" (RD) phenomenon. However, very little is known about readmissions and their frequency in AN. Therefore, we aimed to longitudinally investigate readmissions in AN in order to: (a) characterize patients with AN who need readmission (i.e., RA-AN), sometimes rapidly (RD-AN); (b) ascertain differences between RA-AN and non-RA-AN groups during baseline hospitalization; (c) investigate as to whether clinical or psychometric parameters worsened on RA; and (d) analyze predictors of time-to-readmission in AN. Methods: A total of 170 inpatients with AN were enrolled at their baseline hospitalization; all their subsequent rehospitalizations were recorded with a longitudinal design by which each patient has been observed for 3 years. Patients were classified as RD-AN if requiring a readmission <12 months since last discharge. Clinical characteristics were measured upon admission and discharge for each hospitalization, and at all time points, patients completed questionnaires assessing eating and general psychopathology, and body shape concerns. Results: Sixty-seven patients (39.4%) needed at least one readmission and 62 (92.5% of RA-AN) reported RD. Compared with non-RA-AN, those with RA-AN were younger, reported a shorter duration of illness, and were more frequently diagnosed with AN-BP. Also, greater severity of anxious and depressive symptoms and body shape concerns emerged in the RA-AN group. The outcome of baseline hospitalization did not differ between groups, and only depressive symptoms worsened at readmission. Shorter duration of AN and low weight gain during baseline hospitalization predicted early readmission but did not survive statistical control. In contrast, high scores on drive for thinness upon baseline hospital entry robustly predicted a shorter time to readmission even after statistical control. Discussion: Individuals with AN who require readmission do so over a short period notwithstanding a positive treatment outcome during their baseline hospitalization. Shorter time-to-readmission can be predicted mostly in case of marked drive for thinness and poor weight gain at baseline hospital admission.
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Affiliation(s)
- Enrica Marzola
- Department of Neuroscience "Rita Levi Montalcini", Eating Disorders Center, University of Turin, Turin, Italy
| | - Paola Longo
- Department of Neuroscience "Rita Levi Montalcini", Eating Disorders Center, University of Turin, Turin, Italy
| | - Federica Sardella
- Department of Neuroscience "Rita Levi Montalcini", Eating Disorders Center, University of Turin, Turin, Italy
| | - Nadia Delsedime
- Department of Neuroscience "Rita Levi Montalcini", Eating Disorders Center, University of Turin, Turin, Italy
| | - Giovanni Abbate-Daga
- Department of Neuroscience "Rita Levi Montalcini", Eating Disorders Center, University of Turin, Turin, Italy
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Longo P, Marzola E, De Bacco C, Demarchi M, Abbate-Daga G. Young Patients with Anorexia Nervosa: The Contribution of Post-Traumatic Stress Disorder and Traumatic Events. ACTA ACUST UNITED AC 2020; 57:medicina57010002. [PMID: 33375161 PMCID: PMC7822187 DOI: 10.3390/medicina57010002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/10/2020] [Accepted: 12/21/2020] [Indexed: 12/13/2022]
Abstract
Background and Objectives: Anorexia nervosa (AN) is a complex disorder whose etiopathogenesis involves both biological and environmental factors. The aims of the present study were to retrospectively analyze risk factors in young patients with AN and to assess differences in clinical and eating-related symptoms between patients with and without a diagnosis of post-traumatic stress disorder (PTSD) and with or without a history of acknowledged risk factors. Materials and Methods: Sixty-four patients with AN (<25 years old) were recruited and completed an anamnestic evaluation and the following self-report measures: Eating Disorder Examination Questionnaire (EDE-Q), Childhood Trauma Questionnaire (CTQ), State-Trait Anxiety Inventory (STAI-Y), Beck Depression Inventory (BDI), Life Events Checklist (LEC), and Dissociative Experience Scale (DES). The PTSD diagnosis was assigned according to the Structured Clinical Interview for the DSM-5 (SCID-5). Results: The most frequent risk factors were those associated with relational traumatic events and familiarity for psychiatric disorders. Higher severity of body-related symptoms (i.e., those symptoms impacting on body image and perception and leading to body concerns) emerged in patients with PTSD, versus patients without PTSD diagnosis; however, after controlling for dissociative symptoms, only differences in BMI remained significant. Concerning other risk factors, those with a history of childhood trauma were more depressed than patients without such history and those with familiarity with eating disorders reported more AN-related hospitalizations in the past than those individuals without familiarity. Conclusion: These results suggest the importance of investigating the presence of risk factors and PTSD diagnosis in patients with AN, and to treat post-traumatic symptoms in young patients in order to decrease the risk of developing severe forms of AN. Moreover, a particular focus on those patients with a family member affected by an eating disorder could be of clinical utility.
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Longo P, Panero M, Amodeo L, Demarchi M, Abbate-Daga G, Marzola E. Psychoform and somatoform dissociation in anorexia nervosa: A systematic review. Clin Psychol Psychother 2020; 28:295-312. [PMID: 32918777 DOI: 10.1002/cpp.2517] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 09/09/2020] [Accepted: 09/10/2020] [Indexed: 02/06/2023]
Abstract
Dissociation is a debilitating condition often present as comorbidity in patients with eating disorders, but to date only sparse findings are available on this topic. Additionally, very little data exist on the classification of dissociation, namely, psychoform and somatoform, in anorexia nervosa (AN). This review aimed to provide an updated view on the literature about dissociation in AN, with a focus on AN subtypes (i.e., restricter and binge-purging) as well as dissociation type (i.e., psychoform and somatoform), when available. We screened 304 studies, and after title and abstract selection and full-text reading, 29 of them were included in this review. Most of the studies investigated psychoform dissociation, whereas just four publications considered somatoform dissociation. Dissociation resulted to be present in AN more than in healthy controls and in individuals with other psychiatric disorders, and it was related mostly to the binge-purging subtype of AN. Moreover, dissociation was linked to traumatic events, self-harm and negative treatment outcomes, especially in patients affected by the binge-purging subtype of AN. However, results on these matters are scarce and partially discordant. The methodological assessment we performed revealed an overall fair quality of the included studies, although several flaws emerged as well. The present review reported on one hand the relevance of dissociation in AN, but on the other hand the need to stimulate the scientific debate on (a) a deeper investigation of somatoform dissociation in AN and (b) the relationship between dissociation and both clinical severity and treatment response/resistance in AN.
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Affiliation(s)
- Paola Longo
- Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Matteo Panero
- Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Laura Amodeo
- Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Matilde Demarchi
- Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Giovanni Abbate-Daga
- Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
| | - Enrica Marzola
- Eating Disorders Center, Department of Neuroscience, University of Turin, Turin, Italy
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Torre C, Guerreiro J, Longo P, Raposo JF, Leufkens H, Martins AP. Intensive monitoring of adverse drug events associated with the use of new glucose-lowering drugs: results from an inception cohort study in Portugal. Diabet Med 2020; 37:648-656. [PMID: 31692117 DOI: 10.1111/dme.14168] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/04/2019] [Indexed: 12/11/2022]
Abstract
AIMS To determine the frequency and the time-course profile of adverse drug events associated with new glucose-lowering drugs in daily practice and to explore factors potentially associated to these events. METHODS An inception cohort study was implemented. Adults with type 2 diabetes mellitus initiating a dipeptidyl peptidase-4 inhibitor, a glucagon-like peptide-1 receptor agonist or a sodium-glucose co-transporter-2 inhibitor were eligible for inclusion. Data were collected through baseline and follow-up telephone questionnaires, administered at 2 weeks, 3 months and 6 months. Kaplan-Meier curves and log-rank were computed to compare the time to adverse drug event onset. Cox models were used to explore potential factors associated with adverse drug events. RESULTS A total of 1328 participants were recruited to the study. In all, 1118 adverse drug events were reported (of which 36% were not listed in the summary of product characteristics) by 41% of participants. The median latency time of adverse drug events reported in ≥1% of participants ranged from 0 to 2 days. Glucagon-like peptide-1 receptor agonist and sodium-glucose co-transporter-2 inhibitor subgroups were associated with an increased likelihood of adverse drug event reporting when compared with the dipeptidyl peptidase-4 inhibitor subgroup. A total of 328 glucose-lowering drugs were withdrawn, more than half as a result of an adverse drug event. CONCLUSIONS More than two-fifths of participants reported an adverse drug event; dipeptidyl peptidase-4 inhibitors led to the highest proportion of unlabelled adverse drug events. Adverse drug event latency time data show that counselling and adverse drug event management should be proactively addressed from treatment initiation. There should be greater focus on prevalent new users of glucose-lowering drugs, who were more complex participants in this study in terms of type 2 diabetes disease, as they were more likely to report an adverse drug event than the incident new users.
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Affiliation(s)
- C Torre
- Centre for Health Evaluation and Research, National Association of Pharmacies, Lisbon, Portugal
- Faculty of Pharmacy, University of Lisbon, Lisbon, Portugal
| | - J Guerreiro
- Centre for Health Evaluation and Research, National Association of Pharmacies, Lisbon, Portugal
| | - P Longo
- Centre for Health Evaluation and Research, National Association of Pharmacies, Lisbon, Portugal
| | - J F Raposo
- Nova Medical School, New University of Lisbon, Lisbon, Portugal
- Portuguese Diabetes Association, Lisbon, Portugal
| | - H Leufkens
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - A P Martins
- Faculty of Pharmacy, University of Lisbon, Lisbon, Portugal
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Longo P, Bertorello A, Panero M, Abbate-Daga G, Marzola E. Traumatic events and post-traumatic symptoms in anorexia nervosa. Eur J Psychotraumatol 2019; 10:1682930. [PMID: 31723378 PMCID: PMC6830292 DOI: 10.1080/20008198.2019.1682930] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 09/09/2019] [Accepted: 10/03/2019] [Indexed: 11/16/2022] Open
Abstract
Background: Traumatic Events (TEs) are often seen as risk factors not only for the development of eating disorders (EDs) but also for their impact on the severity of clinical presentation and psychiatric comorbidities. Objective: This study aimed to assess the prevalence and time of occurrence of TEs in the two subtypes of anorexia nervosa (AN; restricting [RAN] and binge-purging [BPAN]) and to investigate differences in TEs (number, type, frequency) as well as clusters of post-traumatic symptoms and emotional dysregulation between the two groups. Method: Seventy-seven hospitalized women were recruited and divided into two subgroups according to their AN subtype. Participants completed the following self-reported measures: Eating Disorder Inventory-2 (EDI-2), Life Events Checklist (LEC), Impact of Events Scale-Revised (IES-R) and the Difficulties in Emotion Regulation Scale (DERS). Results: A higher occurrence of TEs was found in patients with BPAN than in those with RAN. In particular, there were significantly more women in the BPAN group than in the RAN group who had been sexually assaulted. Exposure to TEs happened before the onset of illness in most patients, regardless of the AN subtype. Finally, the BPAN group had significantly higher scores in terms of post-traumatic symptoms and emotional dysregulation than RAN patients. Conclusions: Patients with BPAN showed a higher occurrence of TEs, post-traumatic symptom clusters, and emotional dysregulation than those with RAN. These findings are of interest as treatments could benefit from trauma-informed interventions for those affected by AN, and particularly for those with the binge-purging subtype.
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Affiliation(s)
- Paola Longo
- Eating Disorders Centre, Department of Neuroscience, University of Turin, Turin, Italy
| | - Antonella Bertorello
- Eating Disorders Centre, Department of Neuroscience, University of Turin, Turin, Italy
| | - Matteo Panero
- Eating Disorders Centre, Department of Neuroscience, University of Turin, Turin, Italy
| | - Giovanni Abbate-Daga
- Eating Disorders Centre, Department of Neuroscience, University of Turin, Turin, Italy
| | - Enrica Marzola
- Eating Disorders Centre, Department of Neuroscience, University of Turin, Turin, Italy
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17
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Dhanyalayam D, Palma G, Cappello AR, Mariconda A, Sinicropi MS, Giordano F, Del Vecchio V, Ramunno A, Arra C, Longo P, Saturnino C. Corrigendum to: Phosphonium Salt Displays Cytotoxic Effects Against Human Cancer Cell Lines. Anticancer Agents Med Chem 2018; 18:765. [PMID: 31393237 DOI: 10.2174/187152061805180821121547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Due to an oversight one of the author’s name was published wrong in the article entitled “Phosphonium Salt Displays Cytotoxic Effects Against Human Cancer Cell Lines” in “Anti-Cancer Agents in Medicinal Chemistry, 2015, Vol. 17, No. 13. pp. 1796.” The correct names of all authors are given below: Dhanyalayam D, Palma G, Cappello AR, Mariconda A, Sinicropi MS, Giordano F, Del Vecchio V, Ramunno A, Arra C, Longo P, Saturnino C.
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Affiliation(s)
- D Dhanyalayam
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende (CS), Italy
| | - G Palma
- SSD Sperimentazione Animale, Istituto Nazionale Tumori, IRCCS, Fondazione "G. Pascale", Naples, Italy
| | - A R Cappello
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende (CS), Italy
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18
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Schmid H, Gilardi E, Gregori G, Longo P, Maier J, van Aken PA. Structure and chemistry of interfaces between ceria and yttria-stabilized zirconia studied by analytical STEM. Ultramicroscopy 2018; 188:90-100. [PMID: 29602057 DOI: 10.1016/j.ultramic.2018.01.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 01/16/2018] [Accepted: 01/27/2018] [Indexed: 11/18/2022]
Abstract
Epitaxial undoped and Gd2O3-doped ceria films were grown by pulsed laser deposition on (1 1 1) faced Y2O3-stabilized zirconia (YSZ). Highly localized cerium reduction at the film-substrate interfaces is revealed by atomically resolved valence EELS mapping using Cs aberration-corrected scanning transmission electron microscopy. The chemical profiles reveal interdiffusion of Ce, (Gd), Y, Zr, forming an intermixing zone at the interface 7-9 (1 1 1) lattice planes wide. In its vicinity, the fraction of Ce3+ raises gradually over 6-8 lattice planes from zero in the bulk ceria to ≈100% in one single plane at the interface. Beyond this plane the Ce3+ fraction drops sharply within the YSZ substrate. In the vicinity of the interface systematic scan deflections are observed during EELS line scans. The advancing electron probe experiences a retarding force at the ceria side, and an accelerating force at the YSZ side, irrespective of the scan direction. This behavior is suggestive of coulombic interactions between the electron probe and a charged interface. This is interpreted as an indication of the presence of a space-charge situation at the YSZ/ceria interface, resulting from an excess negative charge at the ceria side (due to Ce3+cations) and an excess positive charge at the YSZ side (due to oxygen vacancies).
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Affiliation(s)
- H Schmid
- Stuttgart Center for Electron Microscopy at the Max Planck Institute for Solid State Research (MPI-FKF), Heisenbergstrasse 1, Stuttgart, 70569, Germany.
| | - E Gilardi
- Department of Physical Chemistry of Solids, Max Planck Institute for Solid State Research, Stuttgart, Germany
| | - G Gregori
- Department of Physical Chemistry of Solids, Max Planck Institute for Solid State Research, Stuttgart, Germany
| | - P Longo
- Gatan Inc., Pleasanton, CA, USA
| | - J Maier
- Department of Physical Chemistry of Solids, Max Planck Institute for Solid State Research, Stuttgart, Germany
| | - P A van Aken
- Stuttgart Center for Electron Microscopy at the Max Planck Institute for Solid State Research (MPI-FKF), Heisenbergstrasse 1, Stuttgart, 70569, Germany.
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19
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Gallelli L, Gallelli G, Codamo G, Argentieri A, Michniewicz A, Siniscalchi A, Stefanelli R, Cione E, C. Caroleo M, Longo P, De Sarro G. Recognizing Severe Adverse Drug Reactions: Two Case Reports After Switching Therapies to the Same Generic Company. Curr Drug Saf 2016; 11:104-8. [DOI: 10.2174/1574886311207040309] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 09/21/2015] [Accepted: 09/22/2015] [Indexed: 11/22/2022]
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20
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Gallelli L, Michniewicz A, Stefanelli R, Cannataro R, Longo P, Perri M, Cione E, Caroleo MC. Different Omega-3 Formulations Yield to Diverse Clinical Response: A Case-Report. Curr Drug Saf 2016; 11:177-80. [PMID: 26549193 DOI: 10.2174/1574886311666151106120928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 10/30/2015] [Accepted: 11/04/2015] [Indexed: 02/08/2023]
Abstract
Treatment guidelines recommend omega-3 with Docosahexaenoic Acid (DHA) and Eicosapentaenoic Acid (EPA) content not above 85% in patients with high plasma levels of triglycerides. Since the different up to date formulation of omega-3 available in commerce must be similar to clinical efficacy and safety, herein, we report the case a 52-year-old woman who presented clinical inefficacy using Olevia(®) omega-3 treatment. Clinical evaluation excluded the presence of intestinal or systemic diseases able to reduce the drug absorption. Switching the therapy from (Olevia(®)) to an equivalent omega-3 formulation (Esapent(®)), we documented a decrease in her plasma triglycerides levels. In order to evaluate a possible difference between these formulations we performed a single blind in vitro dissolution test using three pills for each formulation of omega-3 (Olevia(®), Esapent® and another one chosen between the several formulations available in commerce: DOC Generic(®)) that revealed a significant difference (>20%) in the dissolution time of three different omega- 3 commercially available drug formulation.
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Affiliation(s)
- Luca Gallelli
- Department of Health Science, University of Catanzaro, Viale Europa, 88100 Catanzaro and Operative Unit of Clinical Pharmacology and pharmacovigilance, Azienda Ospedaliera MaterDomini, Via T Campanella 115, Catanzaro, Italy.
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21
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Raimondo M, Russo S, Guadagno L, Longo P, Chirico S, Mariconda A, Bonnaud L, Murariu O, Dubois P. Effect of incorporation of POSS compounds and phosphorous hardeners on thermal and fire resistance of nanofilled aeronautic resins. RSC Adv 2015. [DOI: 10.1039/c4ra11537f] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aim of this work is the identification of the best strategy for improving thermal, fire resistance and electrical conductivity of an epoxy resin for aeronautic applications.
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Affiliation(s)
- M. Raimondo
- Dipartimento di Ingegneria Industriale
- Università di Salerno
- 84084 Fisciano (SA)
- Italy
| | - S. Russo
- ALENIA Aeronautica SpA Viale dell'Aeronautica
- 80038 Pomigliano D'Arco – (NA)
- Italy
| | - L. Guadagno
- Dipartimento di Ingegneria Industriale
- Università di Salerno
- 84084 Fisciano (SA)
- Italy
| | - P. Longo
- Dipartimento di Chimica e Biologia
- Università di Salerno
- 84084 Fisciano (SA)
- Italy
| | - S. Chirico
- Dipartimento di Ingegneria Industriale
- Università di Salerno
- 84084 Fisciano (SA)
- Italy
| | - A. Mariconda
- Dipartimento di Chimica e Biologia
- Università di Salerno
- 84084 Fisciano (SA)
- Italy
| | - L. Bonnaud
- Laboratory of Polymeric and Composite Materials
- Center of Innovation and Research in Materials & Polymers (CIRMAP)
- Materia Nova Research Center & University of Mons
- 7000 – Mons
- Belgium
| | - O. Murariu
- Laboratory of Polymeric and Composite Materials
- Center of Innovation and Research in Materials & Polymers (CIRMAP)
- Materia Nova Research Center & University of Mons
- 7000 – Mons
- Belgium
| | - Ph. Dubois
- Laboratory of Polymeric and Composite Materials
- Center of Innovation and Research in Materials & Polymers (CIRMAP)
- Materia Nova Research Center & University of Mons
- 7000 – Mons
- Belgium
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Affiliation(s)
- L. Guadagno
- Dipartimento di Ingegneria Industriale; Università di Salerno; Via Ponte Don Melillo 84084 Fisciano Salerno Italy
- NANO_MATES; Research Centre for NANOMAterials and nanoTEchnology at Salerno University; Università di Salerno; Via Ponte Don Melillo 84084 Fisciano Salerno Italy
| | - M. Raimondo
- Dipartimento di Ingegneria Industriale; Università di Salerno; Via Ponte Don Melillo 84084 Fisciano Salerno Italy
| | - C. Naddeo
- Dipartimento di Ingegneria Industriale; Università di Salerno; Via Ponte Don Melillo 84084 Fisciano Salerno Italy
- NANO_MATES; Research Centre for NANOMAterials and nanoTEchnology at Salerno University; Università di Salerno; Via Ponte Don Melillo 84084 Fisciano Salerno Italy
| | - P. Longo
- NANO_MATES; Research Centre for NANOMAterials and nanoTEchnology at Salerno University; Università di Salerno; Via Ponte Don Melillo 84084 Fisciano Salerno Italy
- Dipartimento di Chimica e Biologia; Università di Salerno; Via Ponte Don Melillo 84084 Fisciano Salerno Italy
| | - A. Mariconda
- Dipartimento di Chimica e Biologia; Università di Salerno; Via Ponte Don Melillo 84084 Fisciano Salerno Italy
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de Franciscis S, De Sarro G, Longo P, Buffone G, Molinari V, Stillitano DM, Gallelli L, Serra R. Hyperhomocysteinaemia and chronic venous ulcers. Int Wound J 2013; 12:22-6. [PMID: 23418772 DOI: 10.1111/iwj.12042] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Accepted: 01/12/2013] [Indexed: 12/13/2022] Open
Abstract
Chronic venous ulceration (CVU) is the major cause of chronic wounds of lower extremities, and is a part of the complex of chronic venous disease. Previous studies have hypothesised that several thrombophilic factors, such as hyperhomocysteinaemia (HHcy), may be associated with chronic venous ulcers. In this study, we evaluated the prevalence of HHcy in patients with venous leg ulcers and the effect of folic acid therapy on wound healing. Eighty-seven patients with venous leg ulcers were enrolled in this study to calculate the prevalence of HHcy in this population. All patients underwent basic treatment for venous ulcer (compression therapy ± surgical procedures). Patients with HHcy (group A) received basic treatment and administered folic acid (1·2 mg/day for 12 months) and patients without HHcy (group B) received only basic treatment. Healing was assessed by means of computerised planimetry analysis. The prevalence of HHcy among patients with chronic venous ulcer enrolled in this study was 62·06%. Healing rate was significantly higher (P < 0·05) in group A patients (78·75%) compared with group B patients (63·33%). This study suggests a close association, statistically significant, between HHcy and CVU. Homocysteine-lowering therapy with folic acid seems to expedite wound healing. Despite these aspects, the exact molecular mechanisms between homocysteine and CVU have not been clearly defined and further studies are needed.
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Affiliation(s)
- Stefano de Franciscis
- Department of Medical and Surgical Science, School of Medicine, University Magna Graecia of Catanzaro, Catanzaro, Italy; Interuniversity Center of Phlebolymphology, International Research and Educational Program in Clinical and Experimental Biotechnology, University Magna Graecia of Catanzaro, Catanzaro, Italy
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Cairella G, Ciaralli F, Longo P, Rebella V, Molino N, D'Urso A, Tarsitani G. [Smoking cessation and weight gain]. Ann Ig 2007; 19:73-81. [PMID: 17405514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Cigarette smoking is the single most important preventable cause of death and illness. Smoking cessation is associated with substantial health benefits, but weight gain after smoking cessation is perceived to be a barrier against quitting smoking. The aim of the study was to analyse predictors of weight gain after smoking cessation. The sample included 1067 residents, aged 18-70 years, in a health district of Rome who answered to an anonymous postal questionnaire. Among them 482 were former smokers; 398 provided lifetime histories of both body weight and smoking and were considered in the analysis. 52.5% (49.3% M; 60.5% F) reported weight gain after smoking cessation; among these 25.4% reported a weight gain > or =5 kg. The multivariate logistic regression analysis showed a direct association between female gender (OR 1.9, CI 95% 1.1-3.2), age - 45 years (45-65 years: OR 2.5, CI 95% 1.4-4.4; > 64 years OR 2.1, CI 95% 1.0-4.0), number of cigarettes per day >20/day (OR 3.8, CI 95% 1.3-11.5) and weight gain after smoking cessation. The relevance of weight gain following smoking cessation suggests that health benefits associated with smoking cessation may to some extent be negated by the detrimental effects on health of associated weight gain. Smoking cessation programmes should therefore consider incorporating follow-up support to prevent weight gain; regular measurements of body weight together with dietary indications and increase of physical activity are basic factors to implement in the intervention of smoking cessation.
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25
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Piccoli GB, Putaggio S, Soragna G, Mezza E, Burdese M, Bergamo D, Longo P, Rinaldi D, Bermond F, Gai M, Motta D, Novaresio C, Jeantet A, Segoloni GP. Kidney vending: opinions of the medical school students on this controversial issue. Transplant Proc 2004; 36:446-7. [PMID: 15110552 DOI: 10.1016/j.transproceed.2004.02.065] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND In this era of globalization, in which different cultural and economic barriers are progressively abated, in the context of the development of rapid information networks such as the Internet, physicians are increasingly challenged by clinical and ethical questions. Kidney vending, banned in some countries, legal or tolerated in others, may be the prototype of the ethical aspects of health-care globalization. METHODS To test the interest and the opinions of medical school students, a simulated case was proposed to students attending a seminar within the nephrology course fourth year of the Medical School of Torino, san Luigi): an Italian patient comes to the nephrologist's office asking for advice on the possibility to legally buy a kidney in a foreign country. The 43 students attending the lesson answered a semistructured questionnaire (15 boys, 28 girls, of median age 23 years). Attendance was within the usual standards (50 students inscribed per year). From the clinical point of view, 11.6% were favorable to kidney vending, 51.2% were contrary, 37.2% were uncertain. From the ethical point of view, no student was pro, 81.4% were contrary, and 18.6% were uncertain. The open comments underline the importance of patient self-determination and of informed consent. Similar opinions were recorded in a nonstructured question: "What should physician's attitude be, in the face of a choice he/she doesn't share?" CONCLUSION Students' uncertainties and doubts underline the need to discuss ethical scenarios in the clinical teachings of the medical school.
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Affiliation(s)
- G B Piccoli
- Cattedra di Nefrologia, Dipartimento di Medicina Interna, Università di Torino, Torino, Italy.
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Piccoli GB, Soragna G, Putaggio S, Burdese M, Longo P, Rinaldi D, Bergamo D, Mezza E, Consiglio V, Novaresio C, Gai M, Motta D, Malfi B, Giacchino F, Jeantet A, Segoloni GP. How many organs should one patient receive? the ethics of transplantation in the medical school. Transplant Proc 2004; 36:444-5. [PMID: 15110551 DOI: 10.1016/j.transproceed.2004.02.064] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Interest in the humanities in the medical school is growing; while several medical schools, mainly of Anglo-Saxon background, have developed dedicated courses, the experience in Italy is limited. METHODS Since the academic year 2000 to 2001, a discussion of ethical problems was implemented in the nephrology course (fourth year of the Medical School of Torino, Italy; overall 6 years). In 2002 to 2003, a case entitled "Retransplantation of Multiple Organs (Prog Transplant 2002)" was discussed in 2 hours of small-group tutorial teaching: a boy received a renal graft at age 5, failed at age 7 due to recurrent glomerulonephritis, required a heart-kidney graft at age 11, and a second heart-kidney graft at 17. Student opinions were gathered by anonymous semistructured questionnaires at the beginning of the lessons as a basis for discussion. RESULTS Following the lessons all students returned the questionnaires (n = 104). In the absence of competition for allocation, retransplantation was approved by 76.2%, unacceptable for 1% (22.9% uncertain-blank). With a waiting list of 10 patients, the opinions changed: 32.4% approved transplantation, 6.7% didn't approve it, 60.9% were uncertain. A theoretical categorization into deontological or utilitaristic approaches favored the first (41.9% vs 26.7%), with a high prevalence of blank-uncertain (31.5%); 21.9% of the students would change their opinion was that study head of the Transplant Department. CONCLUSION Ethical aspects of the medical profession have been discussed with interest by medical school students; the high prevalence of uncertain answers and requests to develop specific tools underline the importance of this educational approach.
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Affiliation(s)
- G B Piccoli
- Cattedra di Nefrologia, Dipartimento di Medicina Interna, Università di Torino, Torino, Italy.
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Piccoli GB, Soragna G, Putaggio S, Burdese M, Bergamo D, Mezza E, Gai M, Motta D, Rossetti M, Malfi B, Anania P, Marchetti P, Vistoli F, Barsotti M, Bianchi AM, Longo P, Rinaldi D, Giacchino F, Jeantet A, Boggi U, Segoloni GP. To give or to receive? opinions of teenagers on kidney donation. Transplant Proc 2004; 36:448-9. [PMID: 15110553 DOI: 10.1016/j.transproceed.2004.02.066] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND The attitude toward living donation varies widely in the world, for economic and cultural reasons. In Italy, as in other Mediterranean settings, the role of living kidney donation is minor. AIM To analyze the reasons for this attitude, we gathered data in a general population sample of high school students in a large northern Italian industrial city (Torino, about 900,000 inhabitants). METHODS Semistructured questionnaires (n = 1676), gathered in 2001 to 2002 in 14 high schools, in the context of an educational program on dialysis, renal transplantation, and organ donation, were analyzed presumably reflecting opinions gathered before the educational intervention. RESULTS Most students, in the case of a close relative or partner needing dialysis, answer that they would donate a kidney (yes: 78.2%, no: 2.9%, uncertain-blank: 18.9%); receiving a living donor kidney is felt as disturbing: only 57.5% of the students would accept it (no: 5.9%, uncertain-blank: 36.6%), mainly because of fear of long-term problems for the donor. Donation from an older to a younger person is seen more positively than vice versa. CONCLUSION In our settings, the attitude of the teenagers on living donation is positive; however, while "giving" is positively seen, the presence of unresolved fears is witnessed by the lower acceptance of the idea of "taking." These data suggest to focus on the risks of kidney donation in educational campaigns and in patient-physician information. The positive attitude shared by the teenagers supports the working hypothesis that lack of information is one of the determinants of the low living donor transplantation rate in our area.
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Affiliation(s)
- G B Piccoli
- Cattedra di Nefrologia, Dipartimento di Medicina Interna, Università di Torino, Torino, Italy.
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Piccoli GB, Soragna G, Putaggio S, Burdese M, Longo P, Rinaldi D, Bergamo D, Mezza E, Consiglio V, Novaresio C, Giacchino F, Jeantet A, Segoloni GP. Efficacy of an educational program on dialysis, renal transplantation, and organ donation on the opinions of high school students: a randomized controlled trial. Transplant Proc 2004; 36:431-2. [PMID: 15110545 DOI: 10.1016/j.transproceed.2004.02.058] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
AIM Organ shortage is a rate-limiting factor for transplantation. The aim of this study was to evaluate the impact of an educational program targeted to high school students on opinions concerning organ donation. METHODS Sixteen public high schools in Torino, Italy, were randomized (2001 to 2002) as interventions (n = 8) or controls (n = 8). Intervention was composed of first questionnaire, first lesson (one to two classes; 2 hours, by a trained nephrology fellow); second lesson (all classes together; coordinated by a nephrologist, with patients and trainees); second questionnaire. Control included questionnaires. Statistical analysis compared the opinions in the questionnaires after stratification for age, sex, and type of school. RESULTS Fourteen schools completed the program (seven interventions: 937 first and 808 second questionnaires; controls: 739 and 659). Television (82.5%) and newspapers (43.2%) were the main sources of information; knowledge on renal transplantation (grafts feasible per patient, average duration) was low; only 12.2% of the students gave correct answers. The opinions on living donation were highly positive (76.8%) with no difference in control, intervention schools, first and second questionnaires, according to sex, age, or type of school. The opinions on cadaveric transplantation were affected by the educational intervention with a drop in negative answers (from 33.7% to 16%), with an increase in positive (from 31.5% to 42.9%) and in uncertain ones (from 34.8% to 41.1%) among the intervention schools; 98% of the students appreciated the program. CONCLUSION The positive effect on student opinions suggests the need to develop educational approaches as a part of our routine clinical work.
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Gianino P, Mastretta E, Longo P, Laccisaglia A, Sartore M, Russo R, Mazzaccara A. Incidence of nosocomial rotavirus infections, symptomatic and asymptomatic, in breast-fed and non-breast-fed infants. J Hosp Infect 2002; 50:13-7. [PMID: 11825046 DOI: 10.1053/jhin.2001.1129] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Rotavirus is one of the most important aetiological agents of nosocomial infections in childhood. We studied the incidence of nosocomial rotavirus infections in 420 patients (age range 1-18 months) consecutively admitted from 1 December 1999 to 31 May 2000 to the infant ward of the Department of Paediatrics, University of Turin. We also evaluated the protective effect of breast feeding. Faecal specimens were collected from every child (whether developing diarrhoeic symptoms or not) and tested for rotavirus during hospitalization and 72 h after discharge. The incidence of rotavirus nosocomial infections was 27.7%. The incidence of symptomatic nosocomial infections was 16.8%, and the incidence of asymptomatic infections was 10.9%. The attack rate of the infections that occurred during hospitalization was 11.8%, while for those occurring after discharge, it was 15.9%. Rotavirus infection, on average, prolonged hospital stay from 5.2 to 6.4 days. 10.6% of breast-fed infants and 32.4% of non-breast-fed infants contracted rotavirus infection (P<0.005). None of the breast-fed infants who contracted rotavirus infection developed diarrhoeic symptoms.
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Affiliation(s)
- P Gianino
- Department of Paediatrics, Regina Margherita Children's Hospital, University of Turin, Turin,
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Leahy DJ, Dann CE, Longo P, Perman B, Ramyar KX. A mammalian expression vector for expression and purification of secreted proteins for structural studies. Protein Expr Purif 2000; 20:500-6. [PMID: 11087690 DOI: 10.1006/prep.2000.1331] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A mammalian expression vector with features optimized for simple expression and purification of secreted proteins has been developed. This vector was constructed to facilitate X-ray crystallographic studies of cysteine-rich glycoproteins that are difficult to express by other means. Proteins expressed with this vector possess an N-terminal human growth hormone domain and an octahistidine tag separated from the desired polypeptide sequences by a tobacco etch virus protease recognition site. Advantages of this vector are high levels of expression, simple detection and purification of expressed proteins, and reliable cleavage of the fusion protein. Cotransfection of this vector with a dihydrofolate reductase gene allows amplification of expression levels with methotrexate. Over one dozen cysteine-rich secreted proteins have been expressed in sufficient quantity for structural studies using this vector; the structure of at least one of these proteins has been determined.
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Affiliation(s)
- D J Leahy
- Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, 725 North Wolfe Street, Baltimore, Maryland 21205, USA
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Fujiwara T, Stolker JM, Watanabe T, Rashid A, Longo P, Eshleman JR, Booker S, Lynch HT, Jass JR, Green JS, Kim H, Jen J, Vogelstein B, Hamilton SR. Accumulated clonal genetic alterations in familial and sporadic colorectal carcinomas with widespread instability in microsatellite sequences. Am J Pathol 1998; 153:1063-78. [PMID: 9777938 PMCID: PMC1853059 DOI: 10.1016/s0002-9440(10)65651-9] [Citation(s) in RCA: 145] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/01/1998] [Indexed: 12/19/2022]
Abstract
A subset of hereditary and sporadic colorectal carcinomas is defined by microsatellite instability (MSI), but the spectra of gene mutations have not been characterized extensively. Thirty-nine hereditary nonpolyposis colorectal cancer syndrome carcinomas (HNPCCa) and 57 sporadic right-sided colonic carcinomas (SRSCCa) were evaluated. Of HNPCCa, 95% (37/39) were MSI-positive as contrasted with 31% (18/57) of SRSCCa (P < 0.000001), but instability tended to be more widespread in SRSCCa (P = 0.08). Absence of nuclear hMSH2 mismatch repair gene product by immunohistochemistry was associated with germline hMSH2 mutation (P = 0.0007). The prevalence of K-ras proto-oncogene mutations was similar in HNPCCa and SRSCCa (30% (11/37) and 30% (16/54)), but no HNPCCa from patients with germline hMSH2 mutation had codon 13 mutation (P = 0.02), and two other HNPCCa had multiple K-ras mutations attributable to subclones. 18q allelic deletion and p53 gene product overexpression were inversely related to MSI (P = 0.0004 and P = 0.0001, respectively). Frameshift mutation of the transforming growth factor beta type II receptor gene was frequent in all MSI-positive cancers (85%, 46/54), but mutation of the E2F-4 transcription factor gene was more common in HNPCCa of patients with germline hMSH2 mutation than in those with germline bMLH1 mutation (100% (8/8) versus 40% (2/5), P = 0.04), and mutation of the Bax proapoptotic gene was more frequent in HNPCCa than in MSI-positive SRSCCa (55% (17/31) versus 13% (2/15), P = 0.01). The most common combination of mutations occurred in only 23% (8/35) of evaluable MSI-positive cancers. Our findings suggest that the accumulation of specific genetic alterations in MSI-positive colorectal cancers is markedly heterogeneous, because the occurrence of some mutations (eg, ras, E2F-4, and Bax genes), but not others (eg, transforming growth factor beta type II receptor gene), depends on the underlying basis of the mismatch repair deficiency. This genetic heterogeneity may contribute to the heterogeneous clinical and pathological features of MSI-positive cancers.
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MESH Headings
- Adaptor Proteins, Signal Transducing
- Adenocarcinoma, Mucinous/genetics
- Adenocarcinoma, Mucinous/metabolism
- Adenocarcinoma, Mucinous/pathology
- Adult
- Aged
- Aged, 80 and over
- Carrier Proteins
- Cell Cycle Proteins
- Chromosomes, Human, Pair 18/genetics
- Colorectal Neoplasms/genetics
- Colorectal Neoplasms/metabolism
- Colorectal Neoplasms/pathology
- Colorectal Neoplasms, Hereditary Nonpolyposis/genetics
- Colorectal Neoplasms, Hereditary Nonpolyposis/metabolism
- Colorectal Neoplasms, Hereditary Nonpolyposis/pathology
- DNA Mutational Analysis
- DNA, Neoplasm/analysis
- DNA-Binding Proteins
- E2F Transcription Factors
- E2F4 Transcription Factor
- Female
- Genes, APC/genetics
- Humans
- Male
- Microsatellite Repeats
- Middle Aged
- MutL Protein Homolog 1
- MutS Homolog 2 Protein
- Neoplasm Proteins/genetics
- Neoplasm Proteins/metabolism
- Nuclear Proteins
- Point Mutation/genetics
- Proto-Oncogene Mas
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/metabolism
- Proto-Oncogene Proteins c-bcl-2
- Proto-Oncogene Proteins p21(ras)/genetics
- Proto-Oncogene Proteins p21(ras)/metabolism
- Retinoblastoma-Binding Protein 1
- Transcription Factor DP1
- Transcription Factors/genetics
- Transcription Factors/metabolism
- Transforming Growth Factor beta/genetics
- Transforming Growth Factor beta/metabolism
- Tumor Suppressor Protein p53/genetics
- Tumor Suppressor Protein p53/metabolism
- bcl-2-Associated X Protein
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Affiliation(s)
- T Fujiwara
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Yi D, Lee RT, Longo P, Boger ET, Lee YC, Petri WA, Schnaar RL. Substructural specificity and polyvalent carbohydrate recognition by the Entamoeba histolytica and rat hepatic N-acetylgalactosamine/galactose lectins. Glycobiology 1998; 8:1037-43. [PMID: 9719685 DOI: 10.1093/glycob/8.10.1037] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Both the Entamoeba histolytica lectin, a virulence factor for the causative agent of amebiasis, and the mammalian hepatic lectin bind to N-acetylgalactosamine (GalNAc) and galactose (Gal) nonreducing termini on oligosaccharides, with preference for GalNAc. Polyvalent GalNAc-derivatized neoglycoproteins have >1000-fold enhanced binding affinity for both lectins (Adler,P., Wood,S.J., Lee,Y.C., Lee,R.T., Petri,W.A.,Jr. and Schnaar,R.L.,1995, J. Biol. Chem ., 270, 5164-5171). Substructural specificity studies revealed that the 3-OH and 4-OH groups of GalNAc were required for binding to both lectins, whereas only the E.histolytica lectin required the 6-OH group. Whereas GalNAc binds with 4-fold lower affinity to the E.histolytica lectin than to the mammalian hepatic lectin, galactosamine and N-benzoyl galactosamine bind with higher affinity to the E. histolytica lectin. Therefore, a synthetic scheme for converting polyamine carriers to poly-N-acyl galactosamine derivatives (linked through the galactosamine primary amino group) was developed to test whether such ligands would bind the E.histolytica lectin with high specificity and high affinity. Contrary to expectations, polyvalent derivatives including GalN6lys5, GalN4desmosine, GalN4StarburstTMdendrimer, and GalN8StarburstTMdendrimer demonstrated highly enhanced binding to the mammalian hepatic lectin but little or no enhancement of binding to the E.histolytica lectin. We propose that the mammalian hepatic lectin binds with greatest affinity to GalNAc "miniclusters," which mimic branched termini of N-linked oligosaccharides, whereas the E.histolytica lectin binds most effectively to "maxiclusters," which may mimic more widely spaced GalNAc residues on intestinal mucins.
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Affiliation(s)
- D Yi
- Departments of Pharmacology and Neuroscience, The Johns Hopkins School of Medicine, 725 North Wolfe Street, Baltimore, MD 21205, USA, Department of Biology, The Johns Hopkins University, Baltimore, MD 21218, USA
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Abstract
Aberrant crypt foci (ACF) in colorectal mucosa are proposed to be the earliest morphological lesion in the development of neoplasia, but their characteristics remain controversial. We therefore studied the epithelial phenotype and genotype of ACF from patients with familial adenomatous polyposis (FAP) and of sporadic ACF by evaluating glycoprotein markers associated with neoplasia (lectins Dolichus biflorus agglutinin and peanut agglutinin; monoclonal antibody CA 19-9 against sialyl Lewis-a blood group substance), expression of proliferating cell nuclear antigen, and ras proto-oncogene mutations. The utility of the markers was established by comparing adenomas and hyperplastic polyps. Most FAP ACF resembled adenomas and were found to differ from sporadic ACF in their high frequency of dysplasia, staining with Dolichus biflorus agglutinin, expression of sialyl Lewis-a, proliferation in the epithelium of upper crypts, and low frequency of ras gene mutations (P = .04 to < .0000001). By contrast, sporadic ACF and a subset of FAP ACF had phenotypic characteristics resembling hyperplastic polyps but usually had ras mutations, which were inversely related to dysplasia (P = .00009). Our findings suggest that "aberrant crypt focus" is a generic term analogous to "polyp" and requires further histopathologic, phenotypic, or genotypic classification into dysplastic and heteroplastic (hetero = other, plasia = form) types. Dysplastic ACF represent potential precursors to colorectal adenomas and adenocarcinomas, but heteroplastic ACF appear to be associated, rather than precursor, lesions.
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Affiliation(s)
- M R Nucci
- Department of Pathology and Oncology Center, The Johns Hopkins University School of Medicine and Hospital, Baltimore, MD 21205-2196, USA
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Schnaar RL, Longo P, Yang LJ, Tai T. Distinctive ganglioside patterns revealed by anti-ganglioside antibody binding to differentiating CG-4 oligodendrocytes. Glycobiology 1996; 6:257-63. [PMID: 8724133 DOI: 10.1093/glycob/6.3.257] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Oligodendrocytes are central nervous system glial cells responsible for myelination of neuronal axons. During brain development oligodendrocyte progenitor cells progress through a series of morphologically and immunohistochemically distinct differentiation steps leading to mature myelin-producing oligodendrocytes. Much of this same differentiation sequence is expressed in vitro by primary oligodendrocyte progenitor cells, and by the clonal progenitor cell line CG-4. We report the use of highly specific monoclonal antibodies against GM1, GD1a, GD1b, GT1b, and GQ1b to determine major brain ganglioside expression and morphological distribution during CG-4 differentiation in vitro. Prominent anti-GD1b antibody stained defined a highly arborized intermediate stage of oligodendrocyte differentiation. In contrast, anti-GT1b antibody bound to discrete patches on the cell bodies of early progenitor cells and more mature oligodendrocytes, and to sites of progenitor arborization. The other anti-ganglioside antibodies tested did not bind above background levels. Cells with anti-GD1b antibody binding and morphology similar to those in differentiating CG-4 cells were detected in rat brain primary cell cultures enriched in oligodendrocyte precursors. The remarkably distinctive ganglioside immunoreactivity on differentiating oligodendrocytes suggests the possibility of a functional role for their surface expression.
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Affiliation(s)
- R L Schnaar
- Department of Pharmacology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
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Grassi A, Longo P, Musco A, Porzio W, Scrivanti A. Palladium and platinum complexes of α-ketoesters. Crystal structure of trans-[Pt{P(C6H11)3}2(H){OO}]. J Organomet Chem 1985. [DOI: 10.1016/0022-328x(85)87421-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Iacobelli S, Natoli V, Longo P, Ranelletti FO, De Rossi G, Pasqualetti D, Mandelli F, Mastrangelo R. Glucocorticoid receptor determinations in leukemia patients using cytosol and whole-cell assays. Cancer Res 1981; 41:3979-84. [PMID: 7285007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Parallel determinations of glucocorticoid receptors in the cells of patients with various forms of leukemia were made by two assay methods, one using cell-free cytosolic extracts and the other using whole-cell preparations. Both assays revealed saturable binding of triamcinolone acetonide in all cases. The mean equilibrium dissociation constant for the interaction of triamcinolone acetonide with the cytoplasmic receptor at 2 degrees was 9.45 +/- 6.33 (S.D.) nM while that for the whole-cell binding at 37 degrees was 6.13 +/- 3.25 nM, suggesting an increase in receptor affinity at physiological temperatures. Competition experiments with various unlabeled steroids revealed a higher degree of glucocorticoid specificity at 37 degrees in whole-cell suspensions than at 2 degrees in cytosol. In a comparative analysis of 41 leukemic cell specimens, it was found that determinations carried out by whole-cell assay, calculated as number of sites per cell correlated well with those performed by cytosol assay, calculated as fmol/mg protein, independent of the type of leukemia. However, for cells with low receptor content, the two assay methods were more difficult to compare. In agreement with previous reports, the cytosol assay consistently underestimated the number of receptors with respect to the whole-cell assay, particularly in cases of lymphatic leukemia. Furthermore, the underestimation decreased for increasing levels of total cellular receptor. These results suggest that, in addition to possible defects in the cytoplasm-to-nucleus translocation process, the acceptor-binding capacity of the nucleus may also represent one of the factors which determines the levels of assayable cytoplasmic receptors. Moreover, they indicate that the two assay methods furnish nonequivalent information.
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Ranelletti FO, Piantelli M, Iacobelli S, Musiani P, Longo P, Lauriola L, Marchetti P. Glucocorticoid receptors and in vitro corticosensitivity of peanut-positive and peanut-negative human thymocyte subpopulations. The Journal of Immunology 1981. [DOI: 10.4049/jimmunol.127.3.849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
In 6 human thymus glands, the immature subset of thymocytes was separated from the more mature one, by differential peanut lectin agglutination. These 2 cell subpopulations were analyzed for glucocorticoid receptor content by using a whole cell assay, with (3H)-triamcinolone acetonide as tracer. The unagglutinated thymocytes (peanut negative) contained about 2 times more receptor sites per cell than agglutinated (peanut positive) ones (7650 +/- 1550 S.D. verus 3195 +/- 896 S.D.). The affinity for steroid was similar in both cell subsets, as was the stereospecificity for glucocorticoids, the time-course of steroid-receptor association, and cytoplasmic to nuclear translocation. Despite the greater number of glucocorticoid receptor sites, the peanut-negative thymocyte subpopulation did not differ from the peanut-positive one in its sensitivity to the inhibitory effects of triamcinolone acetonide, as determined by measurements of the incorporation of radiolabeled precursors of protein and DNA. Moreover, the peanut-negative subset appeared more resistant in vitro to the steroid-induced cell lysis as compared to the peanut-positive one. Thus, our data suggest that glucocorticoid receptor density and corticosensitivity are not directly correlated and that the number of glucocorticoid receptor sites may be dependent on the degree of immunologic maturation.
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Ranelletti FO, Piantelli M, Iacobelli S, Musiani P, Longo P, Lauriola L, Marchetti P. Glucocorticoid receptors and in vitro corticosensitivity of peanut-positive and peanut-negative human thymocyte subpopulations. J Immunol 1981; 127:849-55. [PMID: 6973584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In 6 human thymus glands, the immature subset of thymocytes was separated from the more mature one, by differential peanut lectin agglutination. These 2 cell subpopulations were analyzed for glucocorticoid receptor content by using a whole cell assay, with (3H)-triamcinolone acetonide as tracer. The unagglutinated thymocytes (peanut negative) contained about 2 times more receptor sites per cell than agglutinated (peanut positive) ones (7650 +/- 1550 S.D. verus 3195 +/- 896 S.D.). The affinity for steroid was similar in both cell subsets, as was the stereospecificity for glucocorticoids, the time-course of steroid-receptor association, and cytoplasmic to nuclear translocation. Despite the greater number of glucocorticoid receptor sites, the peanut-negative thymocyte subpopulation did not differ from the peanut-positive one in its sensitivity to the inhibitory effects of triamcinolone acetonide, as determined by measurements of the incorporation of radiolabeled precursors of protein and DNA. Moreover, the peanut-negative subset appeared more resistant in vitro to the steroid-induced cell lysis as compared to the peanut-positive one. Thus, our data suggest that glucocorticoid receptor density and corticosensitivity are not directly correlated and that the number of glucocorticoid receptor sites may be dependent on the degree of immunologic maturation.
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Sica G, Longo P, Ranelletti FO, Iacobelli S. Androgen receptor specificity and growth response in Shionogi carcinoma cells. J Steroid Biochem 1981; 14:23-8. [PMID: 7206696 DOI: 10.1016/0022-4731(81)90188-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Mastrangelo R, Malandrino R, Riccardi R, Longo P, Ranelletti FO, Iacobelli S. Clinical implications of glucocorticoid receptor studies in childhood acute lymphoblastic leukemia. Blood 1980; 56:1036-40. [PMID: 6934012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
We have performed in parallel, in 19 children with acute lymphoblastic leukemia, a quantitative determination of glucocorticoid levels, in vitro steroid induced inhibition of nucleic acid precursors, and a short-term clinical trial of corticosteroids alone, before the treatment was given, which included corticosteroids and other drugs. From our results it appears that high glucocorticoid receptor levels in acute lymphoblastic leukemia of children do not guarantee a clinical response to corticosteroids. On the other hand, glucocorticoid receptors may turn out to be of value in predicting a poor response to corticosteroids only if their levels are considerably low.
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Iacobelli S, Ranelletti FO, Longo P, Riccardi R, Mastrangelo R. Discrepancies between in vivo and in vitro effects of glucorticoids in myelomonocytic leukemic cells with steroid receptors. Cancer Res 1978; 38:4257-62. [PMID: 279401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
MESH Headings
- Binding, Competitive
- DNA, Neoplasm/biosynthesis
- Glucocorticoids/pharmacology
- Humans
- In Vitro Techniques
- Infant
- Leukemia, Myeloid, Acute/blood
- Leukemia, Myeloid, Acute/drug therapy
- Leukemia, Myeloid, Acute/metabolism
- Leukocyte Count
- Male
- Neoplasm Proteins/biosynthesis
- Neoplasms, Hormone-Dependent/drug therapy
- RNA, Neoplasm/biosynthesis
- Receptors, Glucocorticoid/metabolism
- Receptors, Steroid/metabolism
- Steroids/metabolism
- Triamcinolone Acetonide/metabolism
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Barlattani M, Teofili MT, Vecchi L, Calamaro S, Pascarella F, Barduagni A, Marolla A, Longo P. [Blood coagulation changes studied by means of thrombelastography in various neoplastic manifestations during medical, surgical, and radiotherapy]. Clin Ter 1969; 49:221-58. [PMID: 5385353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Vaccarino A, Fabris F, Morassutti Indovina MP, Longo P. [The Zollinger-Ellison syndrome]. Minerva Med 1966; 57:1343-6. [PMID: 5930544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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