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Biomedical subjects

S Caracciolo

Publications and source records attributed to S Caracciolo.

At least 19 recordsLinked to original sources
PubMed2004

Carnitine versus androgen administration in the treatment of sexual dysfunction, depressed mood, and fatigue associated with male aging.

OBJECTIVES: To To compare testosterone undecanoate versus propionyl-L-carnitine plus acetyl-L-carnitine and placebo in the treatment of male aging symptoms. METHODS: A total of 120 patients were randomized into three groups. The mean patient age was 66 years (range 60 to 74). Group 1 was given testosterone undecanoate 160 mg/day, the second group was given propionyl-L-carnitine 2 g/day plus acetyl-L-carnitine 2 g/day. The third group was given a placebo (starch). Drugs and placebo were given for 6 months. The assessed variables were total prostate-specific antigen, prostate volume, peak systolic velocity, end-diastolic velocity, resistive index of cavernosal penile arteries, nocturnal penile tumescence, total and free testosterone, prolactin, luteinizing hormone, International Index of Erectile Function score, Depression Melancholia Scale score, fatigue scale score, and incidence of side effects. The assessment was performed at intervals before, during, and after therapy. RESULTS: Testosterone and carnitines significantly improved the peak systolic velocity, end-diastolic velocity, resistive index, nocturnal penile tumescence, International Index of Erectile Function score, Depression Melancholia Scale score, and fatigue scale score. Carnitines proved significantly more active than testosterone in improving nocturnal penile tumescence and International Index of Erectile Function score. Testosterone significantly increased the prostate volume and free and total testosterone levels and significantly lowered serum luteinizing hormone; carnitines did not. No drug significantly modified prostate-specific antigen or prolactin. Carnitines and testosterone proved effective for as long as they were administered, with suspension provoking a reversal to baseline values. Only the group 1 prostate volume proved significantly greater than baseline 6 months after testosterone suspension. Placebo administration proved ineffective. Negligible side effects emerged. CONCLUSIONS: Testosterone and, especially, carnitines proved to be active drugs for the therapy of symptoms associated with male aging.

Aged↗
PubMed2001

Crossover phenomena in spin models with medium-range interactions and self-avoiding walks with medium-range jumps.

We study crossover phenomena in a model of self-avoiding walks with medium-range jumps, which corresponds to the limit N-->0 of an N-vector spin system with medium-range interactions. In particular, we consider the critical crossover limit that interpolates between the Gaussian and the Wilson-Fisher fixed point. The corresponding crossover functions are computed by using field-theoretical methods and an appropriate mean-field expansion. The critical crossover limit is accurately studied by numerical Monte Carlo simulations, which are much more efficient for walk models than for spin systems. Monte Carlo data are compared with the field-theoretical predictions for the critical crossover functions, finding good agreement. We also verify the predictions for the scaling behavior of the leading nonuniversal corrections. We determine phenomenological parametrizations that are exact in the critical crossover limit, have the correct scaling behavior for the leading correction, and describe the nonuniversal crossover behavior of our data for any finite range.

Journal Article↗
PubMed1996

The time for suicide.

To evaluate whether a time pattern exists in the occurrence of suicide, 223 cases observed in Ferrara, Italy, over a 10-year period were considered. The determination of the hour of suicide was precise in 99 cases, presumptive (within a range of 1 hour) in 53, while for another 44 cases it was possible to define a probable time of suicide, grouping into four 6-hour periods (night, morning, afternoon, and evening). The remaining 27 cases were excluded as it was impossible to determine the time reliably. The data were analysed both by means of chi 2 test for goodness-of-fit and by single cosinor. A specific pattern, characterized by a significant peak in the late morning -early afternoon hours was found for the entire sample and sex subgroups.

Adult↗
PubMed1996

Circadian rhythm of parasuicide in relation to violence of method and concomitant mental disorder.

Circadian occurrence of parasuicide was evaluated in relation to sex, violence of parasuicide method and psychiatric diagnosis. In all, 457 consecutive episodes of parasuicide were recruited during a 5-year period. Complete data for time of parasuicide, parasuicide method, parasuicide recurrency and psychiatric diagnosis (ICD-9) were available for 304 subjects. Parasuicide methods were classified into two groups depending on the violence of the method. Parasuicide occurred significantly more often in the afternoon and evening hours for both men and women, for both violent and non-violent methods, both in first-even cases and repeaters, and in the following diagnostic groups: organic mental and psychoactive substance disorders, neurotic disorders and personality disorders. The data support the hypothesis of a circadian rhythmicity of parasuicide, showing an area of chronobiological risk in the afternoon and early evening hours.

Adult↗
PubMed1995

Serum cholesterol concentrations in parasuicide.

OBJECTIVE: To evaluate whether people who have committed parasuicide have low serum cholesterol concentrations. DESIGN: Results of blood tests in subjects admitted to hospital for parasuicide compared with those of a control group of non-suicidal subjects; comparison in subgroup of parasuicide subjects of two sets of blood test results (one set from admission for parasuicide and the other from admission for some other illness). SETTING: General hospital, Ferrara, Italy. SUBJECTS: 331 parasuicide subjects aged 44 (SD 21) years (109 with two sets of blood test results) and 331 controls. MAIN OUTCOME MEASURES: Serum cholesterol concentrations and possible association with parasuicide, considering sex, violence of method of parasuicide, and underlying psychiatric disorder. RESULTS: Lower serum cholesterol concentrations (4.96 (SD 1.16) mmol/l) were found in the parasuicide subjects than in the controls (5.43 (1.30); P < 0.001), regardless of sex and degree of violence of parasuicide method. Both men and women with two sets of blood test results had lower cholesterol concentrations after parasuicide. Linear regression analysis showed that the difference in cholesterol concentrations was significantly related to the length of time between the taking of the two sets of blood samples. CONCLUSION: The study showed low cholesterol concentrations after parasuicide. This finding agrees with previous studies, which suggest an association between low cholesterol concentration and suicide.

Adult↗
PubMed1991

Suicidal behavior in Italy: data, trends and guidelines for a suicide intervention/prevention policy.

Even though in Italy, as in the majority of Mediterranean countries, the increase in suicide rates is not among the highest in Europe, between 1969 and 1989 it showed a sharp upswing (+43% among males and +31% among females). In terms of geographical differences, the regions with the highest suicide rate are the northern ones (up to twice the national average). The age groups with the highest suicide risk are those over 74 years (in 1989 the rate among males over 65 was the highest of all: 31.3 per 100,000). The differences in the between-sexes distribution show that among females over 65 years old the suicide rate rose by 70% between 1974 and 1989, versus 77% for males of the same age. The preliminary epidemiological results of one of two Italian centers are presented. These centers are collaborating with the WHO/EURO Multicenter Study on Parasuicide; parasuicide rates are higher for females than for males (55.9 per 100,000, as against 38.1 for males), while the age group at highest risk is seen to be young women (15-24 years), with a specific rate of 115.6.

Adolescent↗
PubMed1988

[Type A personality and risk of post-infarction coronary events].

The purpose of this study was to verify the prevalence of Coronary-prone Behaviour Pattern in a group of eighty-eight patients recovering from their first episode of myocardial infarction. These patients were followed for a period of 4 years to verify the eventual appearance of coronary events, after their first myocardial infarction, with high Coronary-prone Behaviour Pattern levels. The results showed that the number of subjects who died from recurrent myocardial infarction was nearly twice as high in type B, non coronary-prone subjects, as in type A subjects. The Authors hypothesize that specific ways of coping with stressful events adopted by type A subjects may constitute a protection factor as regards the risk of death from recurrent myocardial infarction.

Adult↗
PubMed1986

Type A behavior pattern and mortality after recurrent myocardial infarction: preliminary results from a follow-up study of 5 years.

The purpose of the current study is to examine the association between the type A Behavior Pattern (TABP) and recurrent myocardial infarction (RMI). Rosenman's Structured Interview was administered to a consecutive series of patients admitted to the hospital for myocardial infarction (n = 88). Incidence and mortality from RMI in relation to TABP categories were evaluated after a follow-up period of 5 years. The number of new episodes of myocardial infarction observed in the extreme categories was nearly the same but the number of subjects who dies was nearly twice as large in the B as in the A1 category (10.3% vs. 5.8%, chi 2 = 9.074, p less than 0.0283). No subject was observed to survive after RMI in the B group. In agreement with other recent studies, our preliminary results failed to confirm the association between TABP and RMI, but showed a protection from death for subjects displaying high TABP levels. This finding is discussed in terms of the possibility for type A subjects to cope better with the acute illness.

Adult↗
PubMedDate not supplied

The association of low serum cholesterol with depression and suicidal behaviours: new hypotheses for the missing link.

Several observational studies indicate that reduction of serum cholesterol levels is related to an increase in violent deaths and suicide but the nature of this possible relationship remains unclear. Many confounding factors, e.g. poor health, depression and loss of appetite may play a role in the apparent relationship between serum cholesterol levels and suicide. Two separate phenomena should be considered: lowering total cholesterol and low total cholesterol. This review considers the evidence from epidemiological studies on serum cholesterol lowering and psychiatric disturbances. The available evidence does not seem to substantiate the view that large-scale intervention to reduce cholesterol concentrations could lead to more violent and aggressive behaviour, and generally greater unhappiness. In recent trials using statin treatment, there were slightly fewer deaths from accidents and suicide in the treated group compared with the placebo group. We believe that clinicians should not be deterred from prescribing cholesterol-lowering drugs, to reduce the risk of death from coronary heart disease, when they are indicated.

Aggression↗