Beta2-adrenoreceptor agonists and long-term risk of Parkinson's disease.

INTRODUCTION: There is limited information on how the association between Parkinson's disease and the use of beta2-adrenoreceptor (ß2AR) agonists varies among groups of short-, long-, and ultra-long-acting ß2AR agonists (SABA, LABA and ultraLABA). METHODS: In this prospective study of the Norwegian population, we estimated the incidence of Parkinson's disease according to exposure to ß2AR agonists as a time-dependent variable by means of Cox regression. We adjusted for educational level, comorbidity and performed a sensitivity analysis excluding individuals with chronic obstructive pulmonary disease (COPD), all factors associated with smoking. Anticholinergics and corticosteroids as drugs with the same indication were analyzed for comparison. RESULTS: In the follow-up period from 2005 to 2019, 15,807 incident Parkinson's cases were identified. After adjustments for sex, education and age as the timescale, SABA (Hazard ratio (HR) = 0.84; 95%CI: 0.79, 0.89; p < 0.001), LABA (HR = 0.85; 95%CI: 0.81, 0.90; p < 0.001) and ultraLABA (HR = 0.6; 95%CI: 0.49, 0.73; p < 0.001) were all associated with a lower risk of Parkinson's disease. After exclusion of COPD patients, corticosteroids and anticholinergics were no longer inversely associated, whereas ß2AR agonists remained associated. CONCLUSION: Of drugs with the same indication of use, only ß2AR agonists remained inversely associated with PD risk after all adjustments, with ultraLABA displaying the overall strongest association. Although the precision of the estimate is limited by the modest number of exposed PD cases without COPD, the association is intriguing and suggest that longer-acting, more lipophilic, and thus likely more brain-penetrant ß2AR agonists could be prioritized for further studies.

[Posttraumatic growth in survivors of intimate partner violence: A French pilot study]. / La croissance post-traumatique chez les victimes de violences conjugales : une étude pilote dans la Vienne.

OBJECTIVE: This study aimed to: (1) evaluate posttraumatic growth in survivors of intimate partner violence, (2) compare and characterize this posttraumatic growth with the one measured in survivors of other types of violence, and (3) evaluate post-traumatic stress disorder and its relationship with posttraumatic growth in our clinical population. METHODS: We realized a monocentric pilot study in Poitiers (Vienne, France) recruiting 17 survivors of intimate partner violence and 42 survivors of other types of violence from two medical departments: the Unit of Forensic Medicine, where victims are oriented following complaints, and the Psychotrauma Center. Participants were administrated questionnaires comprising socio-demographics data and specific scales, namely the PTGI and PCL-5. RESULTS: We found a higher prevalence of posttraumatic growth in survivors of intimate partner violence (82 %), when compared with survivors of sexual assault and other interpersonal types of violence (52 % and 53 %, respectively). Posttraumatic growth was low to moderate, and faster as it was detected in victims recruited in the Unit of Forensic Medicine. All domains of posttraumatic growth were positively affected, i.e. higher scores from the PTGI were recorded in survivors of intimate partner violence. No difference was found when results were compared between groups from the Psychotrauma Center. We were unable to identify socio-demographic predictors of posttraumatic growth. À posttraumatic stress disorder was found in survivors of intimate partner violence, and negatively related to posttraumatic growth. DISCUSSION: To our knowledge, this is the first study comparing post-traumatic growth across such conditions and using specific and recognized scales. Our pilot study demonstrated that survivors of intimate partner violence were able to develop low to moderate posttraumatic growth faster than survivors of other types of violence. All domains of posttraumatic growth were affected, demonstrating the ability of survivors to withstand adversity. Scientific data regarding the link between posttraumatic growth and posttraumatic stress disorder is unclear, probably depending on the trauma, the circumstances, the timing of the measurement. In our study, we found a clear negative correlation between the two parameters. Our results underline the necessity to provide overall and rapid intervention in survivors of intimate partner violence, comprising legal, psychological, social and medical approaches, to facilitate the development of posttraumatic growth.

[Post-traumatic growth: Some conceptual considerations]. / La croissance post-traumatique : un concept méconnu de la psychiatrie française.

OBJECTIVE: Post-traumatic growth (PTG) is a quite new concept of positive psychology proposed in the mid-1990s which is still rather confidential in France. This article aims to propose a full description of this concept from an historical view to epidemiological data through underlying mechanisms and evaluation. METHODS: A literature search identifying relevant results was performed through the Pubmed database. RESULTS: PTG refers to positive psychological changes experienced as a result of a traumatic life event in order to rise to a higher level of functioning. That is to say that people experiencing psychological struggle following adversity may often see positive outcomes in the aftermath of trauma. Domains of PTG include appreciation of life, relationships with others, new possibilities in life, personal strength and spiritual change. A self-report scale, the Post-Traumatic Growth Inventory (PTGI), has been developed. PTG has been demonstrated after various traumatic events such as transport accidents, natural disasters, interpersonal violence or medical problems, with a prevalence ranging from 3 to 98 % depending on the type of trauma. DISCUSSION: The concept of resilience and some evaluation bias may have been deleterious for the development of the PTG concept in the French-speaking world. There is a need to consolidate data to understand the pathway leading to PTG, noticeably to identify factors contributing to PTG that can help to promote the growth as a new therapy for trauma.