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PubMed2000

Addiction and schizophrenia.

Epidemiologic studies in the general population and those based on the clinical assessment of schizophrenic populations have revealed a high degree of overlap between schizophrenia and addictive disorders. The abuse of psychoactive substances (including alcohol) throughout life is so frequent (50%) that the possibility of a specific link inevitably arises. Various hypotheses have been suggested to explain the high co-morbidity between schizophrenia and addiction: 1) The social-environmental hypothesis has been developed but studies have provided poor evidence to validate it. 2) The possible shared biological vulnerability between schizophrenia and addictions led researchers to explore common genetic determinants and study the involvement of the dopaminergic and opioid systems in the aetiology of both schizophrenia and the abuse of and dependence on psychoactive drugs. 3) Finally, the theory of self-medication suggests that schizophrenics may be attempting to counter the deficit linked to their disorders by using the substances they take or their dependency-type behaviour to cope with their emotional problems. The clinical profile of schizophrenic addicts does seem to display some distinctive features, such as the high level of depressive co-morbidity, very high nicotine and alcohol dependence, with a very poor prognosis. These patients are difficult to manage; the possibility of pharmacologic interactions between the substances they are taking and neuroleptic medication calls for prudence, and their compliance is also poor. Addictive disorders in schizophrenics are currently a topic of active research intended to lead to identifying specific treatments. The early identification of addictive disorders in schizophrenics should make it possible to limit their development and improve the prognosis.

Adaptation, Psychological↗
PubMed1998

[The "Qualified Detoxification Treatment of Drug Dependent Patients" Federal Model Project in a general hospital: concept, investments and clinical results].

For 150,000 drug addicts 5,200 therapy slots are available in Germany. Until the late 80's detoxification treatment was only given a subordinate role in treating drug addicts. Due to the threat of the infectious disease AIDS and the increasing number of drug deaths new concepts were explored: In 1991 the first qualified detoxification ward for drug addicts was opened in a general hospital under the auspices of the Federal German model project "compact therapy for comprehensive drug treatment". Subsequently more than ten detoxification wards specifically for drug addicts were established in Bavaria alone, primarily in psychiatric county hospitals. Drug addicts are accepted into these qualified detoxification wards without preparation and precondition. Data of 1656 drug addicts were analysed who were treated between 1991 and 1996 at the ward described below: More than 70% come directly from the scene and 33% were accepted for the first time to inpatient detoxification treatment. Most of them are diagnosed with addictions to at least two substances (three substances 44%, two substances 24%). Many suffer from additional diseases: In 1079 out of 1656 a positive hepatitis-C serology was found, 22% had previously tried to commit suicide, 37% had to be treated in intensive-care because of life-threatening intoxication. Nevertheless, 58% of the drug addicts are transferred into continuing therapy after detoxification treatment or they continue to work in permanent employment. During detoxification treatment no patient died. Acceptance, additional diseases which can be diagnosed and treated best in a general hospital, and the high prevalence of addicted persons (at least 17-24%) in internal medical or surgical wards suggest that establishing qualified wards with special settings for addicts in general hospital is useful.

Adult↗
PubMed1997

The relationship of public support payments to substance abuse among homeless veterans with mental illness.

OBJECTIVE: A suspicion that disability payments may exacerbate substance use among persons with chemical addictions recently led Congress to limit federal disability entitlements of applicants whose disability status is related to substance abuse, even if they have another serious mental disorder. This study empirically explored the relationship between receipt of disability payments and substance use among homeless mentally ill veterans. METHODS: The study sample included 2,474 homeless veterans with a current diagnosis of schizophrenia and a substance abuse or dependence disorder who were assessed in a community outreach program sponsored by the Department of Veterans Affairs. RESULTS: After adjustment for other relevant factors, receipt of disability payments showed no significant relationship to the number of days of substance use a month, even among frequent users of alcohol and drugs. CONCLUSIONS: Findings about substance use among the homeless veterans with serious mental disorders in this study provide no support for the assertion that disability payments exacerbate substance use.

Adult↗
PubMed2001

[Doping in sports].

Doping consists in the use of artificial means or substances with the unique aim of improving performance despite adverse effects on health. Amphetamines stimulate the central nervous system by increasing motivation and vigilance. Often consumed in association with analgesics, they increase the fatigue threshold during prolonged or repeated exercise. Addiction and dependency to these substances are extremely rapid. Side-effects include insomnia, exhaustion, violence and can lead to serious heart diseases. By enhancing capacity for intensive training, anabolic steroids improve strength, alertness and speed. This action is often further strengthened by the use of growth hormones DHEA and IGF-1. Extremely high dosage is used and is in no way comparable with natural secretions or those necessary to re-balance an exhausted glandular system. During prolonged endurance exercise, doping aims at improving the circulation of oxygen in the blood and thus its availability to the muscles. Firstly, the blood haemoglobin concentration was increased by blood transfusions. At present the production of red blood cells is stimulated by repeated injections of exogenous erythropoietin. The extreme viscosity of the blood leads to a risk of vascular thromboses and high blood pressure and accentuates greatly and sometimes even fatally the possibility of brachycardia which is common with sportsmen.

Amphetamines↗