ABSTRACT
The etiology of addiction has not yet been fully elucidated. The ratio between the length of the second and fourth fingers (2D:4D ratio) has been linked with prenatal androgen concentrations, but also with addictive behvaiors. Aim: The present study aimed to evaluate the differences of 2D:4D ratio of individuals with cannabis and heroin addiction by examining them together with the control group. A total of sixty two male patients (33 opiate use disorder and 29 cannabis use disorder) with substance use disorder and the twenty-nine healthy controls were included in the present investigation. We obtained the lengths of 2D and 4D of the subjects by using sensitive calipers and calculated the 2D:4D. Heroin-addicted patients had lower 2D:4D ratio in in the right hand (significant difference between control group) (p < 0.001), there was no significant difference found between heroin-cannabis (p = 0.242) and control-cannabis 2D:4D ratios (p < 0.06). In the left hand, it was significant between the heroin-control groups (p < 0.037) and the cannabis-control groups (p < 0.023), while it was not significant between the heroin-cannabis groups (p = 1). In conclusion, we suggest that heroin-and cannabis addicted patients seem to have a lower ratio of 2D:4D compared to healthy control subjects. Our findings can be considered promising as to whether prenatal hormonal factors are important in the etiopathogenesis of addiction.
ABSTRACT
In this study, we aimed to describe the social and clinical characteristics and offense details in a sample of people with schizophrenia convicted of homicide in the eastern region of Turkey. This study was performed in Elazig Mental Hospital between November 2004 and May 2007. We included 43 men and 6 women with schizophrenia convicted of homicide who were hospitalized in the forensic psychiatry unit for compulsory treatment. Preset data recording forms were used. The first part of the forms contained questions regarding the age, sex, marital status, residence, educational status, and occupation of the patients. The second part of the forms included questions about some clinical features of patients with schizophrenia: the presence of schizophrenia in any family member, duration of the disease, subtype of schizophrenia, previous contact with mental health services, types of antipsychotics (first and last drug used), and adherence to antipsychotic medication. The third part of the forms dealt with alcohol-substance abuse and features of the victim (sex of the victim and whether the victim was a stranger, partner, or an ex-partner in the family or an acquaintance). The mean +/- SD age of our patients was 36.98 +/- 10.07 years, and 55.1% of the patients were unmarried. In our sample, 42.9% of the patients were primary school graduates and 75.5% were unemployed. Of the perpetrators, 14.3% never had contact with mental health services. However, 85.7% of patients had previous contact with mental health services. We found that 85.7% of the patients were paranoid subtype and 85.7% were not using their medication regularly and that treatment compliance was considerably low. We found that haloperidol and trifluoperazine were the most preferred antipsychotic drugs, particularly being the first drugs used during treatment (haloperidol, 71.4%; trifluoperazine, 10.2%) and the last antipsychotics used before the offence (haloperidol, 46.9%; trifluoperazine, 20.4%). In 38.8% of cases, schizophrenia was present in the first-degree relatives. We also found that 69.4% of victims were one of the family members. In our sample, 24.5% of patients were using alcohol and 4.1% were using cannabis. It is plausible that rendering more effective communication might allow earlier intervention for unrecognized and possibly unrecognizable risk factors of homicidal acts in people with schizophrenia.
