scholarly journals Genetic maternal effects contributes to the risk of Tourette’s disorder

Author(s):  
Behrang Mahjani ◽  
Lambertus Klei ◽  
Christina M. Hultman ◽  
Henrik Larsson ◽  
Sven Sandin ◽  
...  

AbstractBackgroundRisk for Tourette’s and related tic disorders (CTD) derives from a combination of genetic and environmental factors. While multiple studies have demonstrated the importance of direct additive genetic variation for CTD, little is known about the role of cross-generational transmission of genetic risks, such as maternal effects. Here, we partition sources of variation on CTD risk into direct additive genetic effect and maternal effects.MethodsThe study population consists of 2,522,677 individuals from the Swedish Medical Birth Register, born in Sweden between January 1, 1982, to December 31, 1990, and followed for a diagnosis of CTD through December 31, 2013.ResultsWe identified 6,227 (0.25%) individuals in the birth cohort diagnosed with CTD. Using generalized linear mixed models, we estimated 4.7% (95% CrI, 4.4%-4.8%) genetic maternal effects, 0.5% (95% CrI, 0.2%-7%) environmental maternal effects, and 61% (95% CrI, 59%-63%) direct additive genetic effects. Around 1% of genetic maternal effects were due to maternal effects from the individual with comorbid obsessive-compulsive disorder.ConclusionsOur results demonstrate genetic maternal effects contributing to the risk of CTD in offspring and also highlight new sources of overlapping risk between CTD and obsessive-compulsive disorder.

2010 ◽  
Vol 22 (2) ◽  
pp. 81-86 ◽  
Author(s):  
Cilly Klüger Issler ◽  
Emel Serap Monkul ◽  
José Antonio de Mello Siqueira Amaral ◽  
Renata Sayuri Tamada ◽  
Roseli Gedanke Shavitt ◽  
...  

Issler CK, Monkul ES, Amaral JAMS, Tamada RS, Shavitt RG, Miguel EC, Lafer B. Bipolar disorder and comorbid obsessive-compulsive disorder is associated with higher rates of anxiety and impulse control disorders.Objective:Although bipolar disorder (BD) with comorbid obsessive-compulsive disorder (OCD) is highly prevalent, few controlled studies have assessed this comorbidity. The objective of this study was to investigate the clinical characteristics and expression of comorbid disorders in female BD patients with OCD.Method:We assessed clinically stable female outpatients with BD: 15 with comorbid OCD (BD+OCD group) and 15 without (BD/no-OCD group). All were submitted to the Structured Clinical Interview for DSM-IV, with additional modules for the diagnosis of kleptomania, trichotillomania, pathological gambling, onychophagia and skin picking.Results:The BD+OCD patients presented more chronic episodes, residual symptoms and previous depressive episodes than the BD/no-OCD patients. Of the BD+OCD patients, 86% had a history of treatment-emergent mania, compared with only 40% of the BD/no-OCD patients. The following were more prevalent in the BD+OCD patients than the BD/no-OCD patients: any anxiety disorder other than OCD; impulse control disorders; eating disorders; and tic disorders.Conclusion:Female BD patients with OCD may represent a more severe form of disorder than those without OCD, having more depressive episodes and residual symptoms, and being at a higher risk for treatment-emergent mania, as well as presenting a greater anxiety and impulse control disorder burden.


2019 ◽  
Vol 34 (10) ◽  
pp. 598-611 ◽  
Author(s):  
Donald L. Gilbert

This review and commentary is the product of an invited lecture called “Autoimmunity: PANS/PANDAS” presented at the 2018 Neurobiology of Diseases in Children Symposium in Chicago, IL. The talk addressed clinical and scientific questions and recently published data. At this time, among highly experienced and respected clinicians and researchers spanning relevant disciplines, there is substantial controversy regarding a role for inflammation in producing tics and obsessive-compulsive disorder. This commentary summarizes these controversies, discusses reasons for opposing views on best clinical practices, and concludes with suggestions for pathways forward.


2000 ◽  
Vol 45 (3) ◽  
pp. 274-278 ◽  
Author(s):  
YC Janardhan Reddy ◽  
P Srinivas Reddy ◽  
S Srinath ◽  
S Khanna ◽  
SP Sheshadri ◽  
...  

Objective: Using minimal exclusion criteria, to assess systematically the psychiatric comorbidity in children and adolescents with obsessive–compulsive disorder (OCD) and compare the findings with those of previous studies. Method: Fifty-four children and adolescents who satisfied DSM-III-R criteria for OCD were assessed using a structured interview schedule, the Children's version of the Yale-Brown Obsessive Compulsive Scale (CY-BOCS), and the questionnaire for tic disorders. All 54 subjects were recruited from the Child and Adolescent Psychiatry (CAP) services of the National Institute of Mental Health and Neuro Sciences (NIMHANS), Bangalore, South India. Diagnoses were determined consensually after a review of all the available data. Results: Comorbidity was found in 69% of the sample: 22% were diagnosed with disruptive disorders; 20% met criteria for mood disorders; 19% had anxiety disorders; and 17% had tic disorders. Only 1 subject had bipolar disorder, and none had psychosis. The rates for individual diagnoses—in particular, the rates for disruptive disorders, bipolar disorder, and psychosis—were considerably lower than those reported in previous studies. Conclusions: Patterns of comorbidity in this study differed from those previously reported. Novel patterns of comorbidity with disruptive disorders, bipolar disorder, and psychosis reported in a few recent studies were not replicated in this study. These differences are probably due to different ascertainment methods. Comorbidity needs to be assessed in large epidemiological samples before definite associations can be made between certain comorbid disorders and juvenile OCD.


2010 ◽  
Vol 178 (2) ◽  
pp. 317-322 ◽  
Author(s):  
Adam B. Lewin ◽  
Susanna Chang ◽  
James McCracken ◽  
Melissa McQueen ◽  
John Piacentini

CNS Spectrums ◽  
2009 ◽  
Vol 14 (7) ◽  
pp. 362-370 ◽  
Author(s):  
Maria Alice de Mathis ◽  
Juliana B. Diniz ◽  
Roseli G. Shavitt ◽  
Albina R. Torres ◽  
Ygor A. Ferrão ◽  
...  

ABSTRACTIntroduction: Research suggests that obsessive-compulsive disorder (OCD) is not a unitary entity, but rather a highly heterogeneous condition, with complex and variable clinical manifestations.Objective: The aims of this study were to compare clinical and demographic characteristics of OCD patients with early and late age of onset of obsessive-compulsive symptoms (OCS); and to compare the same features in early onset OCD with and without tics. The independent impact of age at onset and presence of tics on comorbidity patterns was investigated.Methods: Three hundred and thirty consecutive outpatients meeting Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition criteria for OCD were evaluated: 160 patients belonged to the “early onset” group (EOG): before 11 years of age, 75 patients hadResults: The EOG had a predominance of males, higher frequency of family history of OCS, higher mean scores on the “aggression/violence” and “miscellaneous” dimensions, and higher mean global DY-BOCS scores. Patients with EOG without tic disorders presented higher mean global DY-BOCS scores and higher mean scores in the “contamination/cleaning” dimension.Conclusion: The current results disentangle some of the clinical overlap between early onset OCD with and without tics.


2009 ◽  
Vol 38 (2) ◽  
pp. 227-232 ◽  
Author(s):  
Elena Cabedo ◽  
Amparo Belloch ◽  
Carmen Carrió ◽  
Christina Larsson ◽  
Héctor Fernández-Alvarez ◽  
...  

Background: Very few studies have compared the efficacy of individual and group cognitive behaviour therapy (CBT) for the treatment of Obsessive-Compulsive Disorder (OCD) by taking into consideration the change in OCD severity in both the short and long term. Aims: To conduct an open trial of individual versus group CBT for OCD, comparing the clinical and statistically significant changes in severity both at post-treatment and one year later. Method: Forty-two OCD subjects were assigned to individual (n = 18) or group CBT (n = 24, in four groups). Sixteen and 22 subjects completed the treatment in the individual and group conditions, respectively. The Yale-Brown Obsessive Compulsive Scale was recorded at pre-treatment, post-treatment and at the one-year follow-up. Results: At the end of treatment, the clinically significant change was comparable for the two treatment conditions and remained stable at the one-year follow-up. Of the 16 participants who completed the individual CBT treatment, 68.75% were classified as recovered at post-treatment, compared to 40.9% of those receiving group CBT. At follow-up the rate of recovery decreased to 62.5% in individual CBT and to 31.8% in group CBT. Conclusions: Group CBT is effective in decreasing OCD severity. The post-treatment changes were maintained one year later. Nevertheless, these changes were higher in the individual delivery of CBT.


Sign in / Sign up

Export Citation Format

Share Document