Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0036341 (schizophrenia)
 60,220 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

One hundred ten patients with alcohol dependence and 56 psychiatric patients with either senile dementia, amphetamine psychosis, epilepsy or chronic schizophrenia were investigated with a CT scan of the brain. The maximum width of the 3rd ventricle was measured, and the presence/absence of enlargement of the lateral ventricle and of atrophy of the frontal lobe was determined independently by 3 physicians. The width of the 3rd ventricle in alcoholic and the other patients examined was gradually enlarged with aging, and the width in these patients was significantly larger than that in the age-matched control patients who were selected from the patients with amphetamine psychosis, epilepsy or schizophrenia. The enlargement of the lateral ventricles observed in the alcoholic patients always accompanied the enlargement of the 3rd ventricle, but not vice versa. The alcoholic patients with frontal lobe atrophy showed a higher incidence of withdrawal delirium than the patients without atrophy. These findings suggest that the chronic intake of alcohol might affect primarily the area around the 3rd ventricle, resulting in enlargement of this ventricle and consequential enlargement of the lateral ventricles and also that the alcoholic patients with frontal lobe atrophy could have a high risk for a manifestation of alcoholic withdrawal delirium.
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PMID:Computerized tomographic study on the brain of patients with alcohol dependence. 175 87

An epidemiological survey was carried out, amongst psychiatrists, general practitioners, social workers and liberal nurses, with a double aim. To determine the number of psychiatric cases followed or identified; these were classified according to DSMIII criteria (simplified for use by those interviewers little used to psychiatric jargon), essentially: dementia, depression, schizophrenia, other psychosis, other cases (neurosis, substance abuse, alcoholism). Another aim was to determine how the psychiatric care facilities were perceived and used by the person's interviewed. The results reveal a lack of information on their part, despite pst information given by us (systematic misappreciation?); as well as the lack of a desire to collaborate: the practitioners address their patients to the public health service (and preferentially for full-time hospitalisation) when they feel the case is beyond them.
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PMID:[Results of an epidemiological survey conducted with psychiatrists, general practitioners, liberal nurses and social workers in a mental health sector]. 176 81

The co-occurrence of alcoholism and depression was examined in 201 opioid addicts and their 877 first-degree relatives using direct interviews and structured family history based on the Schedule for Affective Disorders and Schizophrenia (SADS) Research Diagnostic Criteria (RDC) method. Familial alcoholism was more frequent in alcoholic than nonalcoholic proband addicts, and primary depression was more frequent in relatives of depressed than nondepressed addicts. An association was suggested between secondary, but not primary, depression and alcoholism in females.
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PMID:Alcoholism and depressive disorders in opioid addicts and their family members. 177 79

Relationships between alcoholism and anxiety disorder are well known by clinicians. Studies have recently shown that the prevalence of alcohol abuse or dependence is very high in patients with panic disorder with or without agoraphobia (Thyer et al., 1986; Bibb and Chambless, 1986). The aims of this study were to determine the prevalence and comorbidity of alcohol abuse and dependence in a population of panic outpatients who were consecutive referrals for treatment of panic disorder (PD) in an anxiety clinic. Patients were interviewed with the Schedule for Affective Disorders and Schizophrenia-Lifetime Version Modified for the study of anxiety disorders (SADS-LA) which is a standardized and semi-structured interview allowing to make diagnoses according to RDC, DSM III and DSM III-R criteria. One hundred and three panic patients (39 males and 64 females) were included in the study. Their mean age was 38.5 years (SD: 11.6). In this sample, 24.3% met the DSM III-R criteria for alcohol abuse and 8.7% those for alcohol dependence. Among these patients, 26.2%, abused of benzodiazepines and 16.5% of them of other substances. We found a high comorbidity rate. In fact, 6.8% of the patients met diagnostic criteria for PD alone, 31.0% for one more diagnosis, 29.1% for two more and 33.0% for three or more besides PD. In this study, we found an association between alcohol abuse and the presence of a lifetime diagnosis of major depressive episode and/or other addictive behaviors. Otherwise, alcohol abuse did not occur more often in patients suffering from panic disorder associated with agoraphobia and/or social phobia.
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PMID:[Panic disorder and alcoholism]. 180 60

Genetic studies of alcoholics, their families and controls have given credence to the idea that genetic influences in alcoholism exist, and set the stage for efforts to identify alcoholism-susceptibility genes (Devor and Cloninger, 1989). My purpose is not to review the genetics of alcoholism, but rather to review the genetic approaches that have been successful in identifying the genes responsible for genetic conditions such as muscular dystrophy and cystic fibrosis. In these disorders our current knowledge of the basic biochemical defect was derived directly from the cloning of the gene that is defective in the disorder. The cloned gene provides DNA probes for carrier identification and prenatal diagnosis, while knowledge of the basic defect allows new and direct investigation of potential therapeutic strategies. The genetic approach is much less definitive when it comes to the study of polygenic or multifactorial disorders such as schizophrenia or Alzheimer's disease. In the case of alcoholism the problem is exacerbated not only by environmental factors but also by phenotypic and genetic heterogeneity. The lack of a clear inheritance pattern means that plausible modes of inheritance must be invoked and tested on families with multiple affected members. Direct segregation analysis may not be possible and the less informative analysis of sib-pairs may be the method of choice. Ultimately, however, it should be possible to identify and clone those genes that play a major role in determining susceptibility to alcoholism. Once cloned, the protein products can be identified, and study of their function should lead to new understanding of the complex biological processes involved in this disorder.
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PMID:Molecular genetic approaches to the study of individual risk in alcoholism. 184 36

Gender differences in the specificity of drug versus alcohol transmission were examined among 201 opioid addicts and their 877 first-degree relatives using direct interviews and a structured family history method based on the Schedule for Affective Disorders and Schizophrenia Research Diagnostic Criteria. A strong association of parental alcoholism with alcoholism among the proband addicts was found, suggesting some specificity for drug versus alcohol abuse. We also found that among the 477 siblings, those with alcoholism alone did not have parents with drug abuse and those parents with drug abuse did not have children with alcoholism alone. Rates of parental alcoholism were higher in alcoholic female than in alcoholic male probands, suggesting greater female "loading" was needed in order to become alcoholic. This increased loading in women was also found among the siblings, but alcoholic parents appeared to transmit a nonspecific tendency for either drug or alcohol abuse to their female children. Thus, it may take a greater "dose" of parental transmission for a woman to become a substance abuser, and transmission of alcoholism may be specific in men, but not in women.
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PMID:Gender differences in the specificity of alcoholism transmission among the relatives of opioid addicts. 186 67

American former prisoners of war (POWs) are an aging group who seek health care with increasing frequency. To examine the prevalence of long-term physical and emotional consequences of captivity in this population, the authors analyzed medical and psychiatric examination data for 426 former POWs. Detailed psychiatric diagnostic criteria were used to assess the POWs' mental health. Compared with general population groups, POWs had moderately elevated lifetime prevalence rates of depressive disorders and greatly elevated rates of posttraumatic stress disorder (PTSD), although their rates of hypertension, diabetes, myocardial infarction, bipolar disorder, schizophrenia, and alcoholism were not elevated. POWs who lost more than 35 percent of their body weight during captivity had higher rates of anxiety disorder, depressive disorders, PTSD, and schizophrenia, compared with other POWs.
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PMID:Prevalence of somatic and psychiatric disorders among former prisoners of war. 189 54

Receptors for dopamine have been classified into two functional types, D1 and D2. They belong to the family of receptors acting through G (or guanine nucleotide-binding) proteins. D2 receptors inhibit adenylyl cyclase, but D1 receptors stimulate adenylyl cyclase and activate cyclic AMP-dependent protein kinases. Dopamine D1 and D2 receptors are targets of drug therapy in many psychomotor disorders, including Parkinson's disease and schizophrenia, and may also have a role in drug addiction and alcoholism. D1 receptors regulate neuron growth and differentiation, influence behaviour and modify dopamine D2 receptor-mediated events. We report here the cloning of the D1 receptor gene, which resides on an intronless region on the long arm of chromosome 5, near two other members of the G-linked receptor family. The expressed protein, encoded by 446 amino acids, binds drugs with affinities identical to the native human D1 receptor. The presence of a D1 receptor gene restriction fragment length polymorphism will be helpful for future disease linkage studies.
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PMID:Human dopamine D1 receptor encoded by an intronless gene on chromosome 5. 197 40

Using the dopamine D2 receptor clone lambda hD2G1, Blum et al recently found that the D2/Taq I allele (A1) was present in 69% of 35 deceased alcoholics but in only 20% of an equal number of controls. To assess this association further, we evaluated the D2/Taq I polymorphism and a single-strand conformation polymorphism detected by polymerase chain reaction and nondenaturing gel electrophoresis (PCR-SSCP) of the 3' noncoding region of the D2 receptor gene. We studied 40 unrelated white alcoholics, 127 racially matched controls, and two white pedigrees. The Schedule for Affective Disorders and Schizophrenia-Lifetime Version (SADS-L) clinical diagnostic interviews were rated blindly by two clinicians. The SADS-L interviews and other data were then used to ascertain diagnoses according to the Diagnostic and Statistical Manual of Mental Disorders, Revised Third Edition (DSM-III-R) criteria. Alcoholics were subtyped according to age of onset, severity, presence of antisocial personality, and family history. No significant differences in either D2/Taq I or PCR-SSCP allele frequencies were observed between alcoholics, subpopulations of alcoholics, or controls. The PCR-SSCP polymorphism provided independent information against linkage at the D2 receptor locus. Several recombinants between the D2/Taq I locus and alcoholism were observed in two white families with an alcoholic parent who possessed the A1 allele. This study does not support a widespread or consistent association between the D2 receptor gene and alcoholism.
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PMID:Population and pedigree studies reveal a lack of association between the dopamine D2 receptor gene and alcoholism. 182 66

Mental illness can devastate persons intellectually and emotionally; with maintenance therapy, however, certain patients with chronic mental illnesses are capable of holding a variety of jobs. From the total population of psychiatric patients in our VA outpatient clinic, the 87 who were gainfully employed were identified to determine common factors among them. Affective disorders were the predominant diagnoses among patients who worked, while schizophrenia was more common among those who did not. Alcoholism was diagnosed in approximately 25% of working and nonworking groups.
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PMID:Patients with mental disorders who work. 200 May 18


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