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Obsessive-compulsive disorder (OCD) is a prevalent psychiatric disorder of unknown etiology. However, there is some evidence that the immune system may play an important role in its pathogenesis. In the present study, two polymorphisms (rs1800795 and rs361525) in the promoter region of the cytokine tumor necrosis factor-alpha (TNFA) gene were genotyped in 183 OCD patients and in 249 healthy controls. The statistical tests were performed using the PLINK(®) software. We found that the A allele of the TNFA rs361525 polymorphism was significantly associated with OCD subjects, according to the allelic χ(2) association test (p=0.007). The presence of genetic markers, such as inflammatory cytokines genes linked to OCD, may represent additional evidence supporting the role of the immune system in its pathogenesis.
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http://dx.doi.org/10.1590/s0004-282x2012000200003 | DOI Listing |
Front Hum Neurosci
August 2025
Department of Neurosurgery, Affiliated Ruijin Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.
Background: Slapping automatism is a type of automatism observed during epileptic seizures, but its underlying electrophysiological mechanisms remain poorly understood. Stereo-electroencephalography (SEEG) provides a unique opportunity to investigate the associated cortical areas with epileptiform discharges during the slapping automatism.
Case Report: We report five cases of drug-resistant epilepsy in which SEEG recordings captured slapping automatism.
Alpha Psychiatry
August 2025
Department of Mental Health, North West Tuscany Local Health Authority, 57023 Cecina, Italy.
BMC Psychiatry
September 2025
Department of Cognitive Neuroscience, Faculty of Biology, Bielefeld University, Bielefeld, Germany.
Obsessive-compulsive disorder (OCD) is a chronic and disabling condition affecting approximately 3.5% of the global population, with diagnosis on average delayed by 7.1 years or often confounded with other psychiatric disorders.
View Article and Find Full Text PDFIndian J Psychiatry
August 2025
Department of Psychiatry, Institute of Psychiatry-Centre of Excellence, Kolkata, West Bengal, India.
Supratherapeutic dosing of selective serotonin reuptake inhibitors (SSRIs) in obsessive-compulsive disorder (OCD) is an area of clinical interest, particularly for treatment-resistant cases. Standard SSRI doses often provide insufficient symptom relief, prompting clinicians to explore higher-than-recommended doses. Evidence suggests that supratherapeutic dosing can enhance serotonergic activity, potentially improving treatment response.
View Article and Find Full Text PDFPsychophysiology
September 2025
Department of Human Medicine, Institute for Systems Medicine, MSH Medical School Hamburg, Hamburg, Germany.
Obsessive-compulsive disorder (OCD) has been associated with altered performance monitoring, reflected in enhanced amplitudes of the error-related negativity in the event-related potential. However, this is not specific to OCD, as overactive error processing is also evident in anxiety. Although similar neural mechanisms have been proposed for error and feedback processing, it remains unclear whether the processing of errors as indexed by external feedback, reflected in the feedback-related negativity (FRN), is altered in OCD.
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