PubMed Health⌕ Search

Biomedical subjects

D De Leo

Publications and source records attributed to D De Leo.

At least 19 recordsLinked to original sources

Definitions of suicidal behavior: lessons learned from the WHo/EURO multicentre Study.

Based on the experience matured during the 15 years of the WHO/EURO Multicentre Study on Suicidal Behavior, this paper provides an excursus on main elements that characterize components for definitional needs. It describes the rationale for choosing the initial set of definitions within the study and the subsequent problems and developments. As a result, unifying terminologies are proposed.

History, 17th Century↗

A new case of Lazarus phenomenon?

The international medical literature described sporadical cases of an exceptional event called the "Lazarus phenomenon". This is the spontaneous reviviscence of an individual after a long time of asystolia following a cardiac accident depending on different pathogenesis (i.e. arrhythmia, ischaemic stroke, haemorrhage, brainstem death). All of the reported cases concerned patients presenting recovery after discontinuation of cardiopulmonary resuscitation. Different explanations of the physiopathology of the phenomenon can be given, first of all, the latency of catecholamine action in such patients. We report the case of an 81-year-old woman who experienced a cardiac accident on the street. Once the cardiopulmonary resuscitation was interrupted, the patient presented life activities after some minutes.

Aged↗

One-year prevalence of death thoughts, suicide ideation and behaviours in an elderly population.

BACKGROUND: Suicidality is constituted by all those phenomena that are apparently positioned along a continuum, with the two extremes represented by death wishes and completed suicide. OBJECTIVES: The aim of this paper is to show the one-year prevalence of the phenomena constituting this possible continuum in the elderly population (aged 65 years and over) of a northern Italian city and to evaluate the relationship between some of these phenomena with psychological suffering. METHOD: Emotional feelings and suicidal thoughts have been investigated by an epidemiological survey conducted in a central quarter of that city. Data on attempted and completed suicide derived from the data bank of the Padua's WHO Collaborating Centre for Research and Training in Suicide Prevention that monitors these phenomena since 1989. RESULTS AND CONCLUSIONS: Results suggest the existence of some continuity in suicidal phenomena, where prevalence decreases from those of emotional/ideational nature to most extreme behaviour. Subjects presenting with more severe suicidal ideation were those also obtaining highest scores in a number of sub-scales of the Brief Symptom Inventory.

Aged↗

Repetition of suicidal behaviour in elderly Europeans: a prospective longitudinal study.

The aim of this study was to assess any predictive factors for repeated attempted suicide and completed suicide in a 1-year follow-up on a sample of elderly European suicide attempters (60 years and over). From 1990 to 1993, 63 subjects completed the first interview and were recontacted after 1 year. At follow-up, eight subjects (12.7%) had taken their lives and seven (11.1%) had repeated at least one suicide attempt. On comparison of repeaters and non-repeaters, differences emerged in terms of death of the father in childhood and for mean Suicidal Intent Score. At the end of follow-up period, repeaters reported a more frequent desire to repeat suicidal behaviour and judged their mental health and social assistance received to be worse. Suicides and non-repeaters differed especially in relation to death of father during childhood and number of contacts with General Practitioner. Interpretation of the results must take into account the smallness of the test sample, the difficulties in obtaining complete data for the follow-up interview, the lack of a control group and a diagnosis formulated in a hospital consultation setting. The study confirms, however, the high risk of repetition of suicidal behaviour in the elderly. In old age suicidal ideation is often sustained over long periods of time and requests for help are addressed to relatives and GPs. An interesting finding is the more frequent death of the father during childhood among repeaters.

Aged↗

Attempted and completed suicide in older subjects: results from the WHO/EURO Multicentre Study of Suicidal Behaviour.

OBJECTIVE: The authors present an analysis of findings for the 65 years and over age group from the WHO/EURO Multicentre Study of Suicidal Behaviour (1989-93). METHODS: Multinational data on non-fatal suicidal behaviour is derived from 1518 subjects in 16 European centres. Local district data on suicide were available from 10 of the collaborating centres. RESULTS: Stockholm (Sweden), Pontoise (France) and Oxford (UK) had the highest suicide attempts rates. In most centres, the majority of elderly who attempted suicide were widow(er)s, often living alone, who used predominantly voluntary drug ingestion. Non-fatal suicidal behaviour decreased with increasing age, whereas suicide rates rose. The ratio between fatal and non-fatal behaviours was 1:2, that for males/females almost 1:1. In the years considered, substantial stability in suicide and attempted suicide rates was observed. As their age increased, suicidal subjects displayed only a limited tendency to repeat self-destructive acts. Moreover, there was little correlation between attempted suicide and suicide rates, which carries different clinical implications for non-fatal suicidal behaviour in the elderly compared with younger subjects in the same WHO/EURO study.

Age Distribution↗

Repetition of attempted suicide among teenagers in Europe: frequency, timing and risk factors.

BACKGROUND: Adolescents in many countries show high rates of suicide attempts and repetitions of attempts as a common feature. Attempted suicide is the best predictor of future suicide. Repetition of attempts further increases the risk of suicide. The present study sought to identify patterns and risk factors for repetition of attempts in older teenagers. METHODS: Data were collected by uniform procedures in a longitudinal follow-up study in seven European centres participating in the WHO/EURO Multicentre Study on Suicidal Behaviour. Information on attempted suicide in the 15-19-year age group during the period 1989-1995 was analysed. RESULTS: A total of 1,720 attempts by 1,264 individuals over a mean follow-up period of 204 weeks (SD 108.9) were recorded. When life-table analysis was performed, 24% of the individuals who had previously attempted suicide made another attempt within one year after the index attempt, compared with 6.8% of the "first-evers", with no major gender difference. Cox regression analysis revealed that previous attempted suicide (OR 3.3, 95% CI 2.4-4.4) and use of "hard" methods (OR 1.5, 95% CI 1.1-2.1) were both significantly associated with repetition of attempted suicide. Stepwise Cox regression analysis showed that a history of previous attempted suicide was the most important independent predictor of repetition (OR 3.2, 95% CI 2.4-4.4). CONCLUSION: For young suicide attempters, follow-up and adequate aftercare are very important if repetition and risk of suicide are to be reduced. This applies particularly to those who have already made more than one attempt.

Adolescent↗

Alternative medicine in a sample of 655 community-dwelling elderly.

OBJECTIVE: Use and satisfaction with herbal/homeopathic remedies, acupuncture and relaxation techniques were examined in an Italian elderly population. METHODS: Data were collected as part of a survey on an elderly population, conducted in 1996--1997 in the urban centre of Padua, Italy. A total of 1362 elderly received a letter inviting them to participate and to accept the visit of an interviewer at home. Of these, 212 were unable to do so for insurmountable reasons and 666 gave consent to take part in the study with a response rate of 65%. Eleven participants were excluded from the study because cognitively impaired. RESULTS: Among the 655 respondents, overall use of at least one alternative medicine was 29.5%. Herbs/phytotherapeutics (47%) and acupuncture (34%) were the most frequently cited therapies. The use of alternative medical practices seems rather widespread among the elderly population in Padua, especially among females with depressive symptoms, pain and discomfort, but not suffering from chronic somatic disease. A percentage of 3.7% of the sample used exclusively alternative medicines; those subjects seemed to be younger, less likely to be physically ill and to report functional disorders and chronic somatic disease. CONCLUSION: Alternative medicines seem to have a complementary role for the elderly with self-perceived psychological symptomatology or disorders, particularly of depressive nature. They may constitute an attempt at self-treatment, probably concealing the difficulties encountered by the elderly subjects in seeking specialist advice for these problems.

Age Factors↗

Methodological issues in community surveys of suicide ideators and attempters.

There have been quite a number of community studies in recent years, with surveys being conducted among the general population, in schools, and among the elderly. While all of these studies have greatly contributed to our understanding of suicidal behavior, because of different approaches toward methodology and definitions, they also have some limitations. These limitations spring mainly from the fact that definitions of suicidal ideation and behavior vary widely across studies, which makes comparisons between studies unreliable. The different utilization of methodology is another problem that can impact the comparability of the community studies.

Data Collection↗

Death ideation and its correlates: survey of an over-65-year-old population.

The presence of dissatisfaction with life or thoughts of death or suicide has been variously surveyed in adolescent samples and in the general population, but there is a paucity of research on the elderly. The aim of this study was to assess, in an elderly community-dwelling population: a) the prevalence of death and/or suicidal feelings and thoughts and any attempted suicides; and b) factors associated with these experiences. A total of 611 over-65-year-old subjects were interviewed at home. Seventeen percent of the total (F:M = almost 2:1) responded affirmatively to at least one of the questions on suicidality. Elderly people reporting suicidal feelings presented markedly higher levels of physical and psychological distress, such as depression, anxiety, and hostility. Results indirectly confirm that depressive symptomatology is not adequately treated. Greater attention is warranted in psychological evaluation of the elderly to take into account those risk factors that, if identified and managed, could reduce the frequency of suicidal thoughts and, probably, associated actions.

Age Factors↗

Reality orientation therapy to delay outcomes of progression in patients with dementia. A retrospective study.

OBJECTIVE: To evaluate the impact of continued Reality Orientation Therapy (ROT) in delaying the outcomes of dementia progression. DESIGN: Retrospective study. Data collection was based on review of clinical charts and on telephone interviews performed with patients or primary caregivers. SETTING: Day hospital of the Alzheimer's Disease Unit, Brescia (Italy). SUBJECTS: Seventy-four patients enrolled in at least one cycle of ROT from 1994 to 1998 were studied. INTERVENTIONS: Rehabilitative intervention based on formal ROT. MAIN OUTCOME MEASURES: This study analysed the time to the occurrence of any of the following: cognitive decline on Mini-Mental State Examination scores, urinary incontinence as an index of functional decline, institutionalization, and death. RESULTS: Data on a 30-month period after the first ROT session were analysed. We compared 46 patients (treatment group) who completed from 2 to 10 ROT cycles (corresponding to 8-40 weeks of training; mean = 15.48) with 28 patients (control group) who completed only one ROT cycle (4 weeks). Treatment group showed higher estimated survival rates than control group on cognitive decline (p = 0.022) and institutionalization (p = 0.002). The relative risks for cognitive decline and institutionalization in the control group compared with treatment group were 0.60 (p = 0.014), and 0.42 (p = 0.021), respectively. CONCLUSIONS: Continued ROT classes during the early to middle stages of dementia may delay nursing home placement and slow down the progression of cognitive decline.

Aged↗

Increased uncoupling protein-2 levels in beta-cells are associated with impaired glucose-stimulated insulin secretion: mechanism of action.

In pancreatic beta-cells, glucose metabolism signals insulin secretion by altering the cellular array of messenger molecules. ATP is particularly important, given its role in regulating cation channel activity, exocytosis, and events dependent upon its hydrolysis. Uncoupling protein (UCP)-2 is proposed to catalyze a mitochondrial inner-membrane H(+) leak that bypasses ATP synthase, thereby reducing cellular ATP content. Previously, we showed that overexpression of UCP-2 suppressed glucose-stimulated insulin secretion (GSIS) in isolated islets (1). The aim of this study was to identify downstream consequences of UCP-2 overexpression and to determine whether insufficient insulin secretion in a diabetic model was correlated with increased endogenous UCP-2 expression. In isolated islets from normal rats, the degree to which GSIS was suppressed was inversely correlated with the amount of UCP-2 expression induced. Depolarizing the islets with KCl or inhibiting ATP-dependent K(+) (K(ATP)) channels with glybenclamide elicited similar insulin secretion in control and UCP-2-overexpressing islets. The glucose-stimulated mitochondrial membrane ((m)) hyperpolarization was reduced in beta-cells overexpressing UCP-2. ATP content of UCP-2-induced islets was reduced by 50%, and there was no change in the efflux of Rb(+) at high versus low glucose concentrations, suggesting that low ATP led to reduced glucose-induced depolarization, thereby causing reduced insulin secretion. Sprague-Dawley rats fed a diet with 40% fat for 3 weeks were glucose intolerant, and in vitro insulin secretion at high glucose was only increased 8.5-fold over basal, compared with 28-fold in control rats. Islet UCP-2 mRNA expression was increased twofold. These studies provide further strong evidence that UCP-2 is an important negative regulator of beta-cell insulin secretion and demonstrate that reduced (m) and increased activity of K(ATP) channels are mechanisms by which UCP-2-mediated effects are mediated. These studies also raise the possibility that a pathological upregulation of UCP-2 expression in the prediabetic state could contribute to the loss of glucose responsiveness observed in obesity-related type 2 diabetes in humans.

Adenosine Triphosphate↗

Hostility as a feature of elderly suicidal ideators.

Literature suggests that suicidal feelings are relatively rare in mentally healthy older adults. This research investigated the presence of death or suicidal ideation in a group of home-dwelling elderly people (N = 611, M age = 75.7 yr., SD = 7.2), taking into account their psychopathological profiles assessed by means of the Brief Symptom Inventory. Suicidality was investigated by the Italian translation of the 1974 questions from Paykel, Myers, Lindenthal, and Tanner. Elderly with death or suicidal ideation manifested depressive and anxious symptoms on the Brief Symptom Inventory. This psychopathological profile, which has been reported for these subjects in various contributions to the literature, was also characterized by the presence of hostility. The correlation with higher scores on the hostility scale is difficult to interpret, although these feelings are often accompanied by failure to control impulses, which is an essential characteristic in suicidal behaviour.

Aged↗

Severe and persistent regressive behaviour in three elderly subjects without cognitive decline.

The appearance of regressive behaviours in the elderly is relatively common. Among these regressive attitudes, there is a relatively high frequency of situations which mimic dementia in the absence of demonstrable organic alterations that justify the presence of a neurodegenerative profile. These generally stem from a primary psychiatric disorder and are referred to as 'pseudodementia'. All these conditions, which are generally accompanied by a marked increase in dependency on the environment, are distinguished by the presence of cognitive impairment and behavioural traits typical of dementia but which are fully reversible on treatment of the primary psychiatric disorder. Here we describe three cases, characterized by their striking discrepancy between clinical profile, with pronounced behavioural alterations similar to dementia-related conduct disorders, culminating in almost complete dependency on the environment, and almost stably intact cognitive performance (assessed through the MMSE), over a mean observation period of approximately five years.

Activities of Daily Living↗