Cognitive impairment in anxiety disorders

Introduction Processing of emotional stimuli is altered in patients with depression. The present feasibility study investigated the features of emotional information recognition in people with depressive disorders and how these differ from individuals without depression to determine whether response times could potentially be used as a diagnostic marker to identify individuals at high risk of depression and as an indicator of antidepressant medication response. Methods The study recruited 32 individuals, 16 with single or recurrent depressive episodes and 16 control subjects without depression. Patients with depression received 8 weeks of antidepressant therapy. The severity of depressive symptoms at baseline and their changes on prescribed therapy were assessed using the Montgomery-Åsberg Depression Rating Scale (MADRS). The processing of emotional information was assessed using the computerized Penn Emotion Recognition Task (ER-40). Results The two groups were well matched in terms of age and gender. There was no difference between the groups in their ability to correctly recognize happy or sad emotional facial expressions, but the average time patients with depression took to recognize a happy face was significantly longer than controls. In addition, they were more likely to misinterpret facial expressions as non-emotional. In patients with depression, the mean MADRS total score decreased from 26.3 ± 4.4 at baseline to 11.1 ± 8.9 at 8 weeks, a reduction of 57.8%. The proportion of responders with greater than 50% reduction in their baseline MADRS total score was 64.3%. Antidepressive treatment was associated with a reduction in the mean time required for recognition of a happy face (P < 0.05). Conclusions Patients with depression are slower to identify positive emotions but have a similar time to recognition of negative emotions as patients without depression. The greater time required for recognition of happiness distinguished the patients with depression from control subjects, and was also the only parameter that showed an improvement with antidepressant therapy, suggesting a specific relationship of this parameter with the depressive state.

The prevalence of periodontal diseases is increasing, tends to increase with age and is considered as one of the main causes of tooth loss. To assess the effectiveness of new methods of treatment of periodontal diseases, studies on laboratory animals can be promising. The aim of the study: to develop a new method of accelerated modeling of experimental periodontitis on laboratory animals. Material and methods. The study was carried out on 22 female rats. A wire ligature was applied to the cervical area of the incisors of the animals in an eight-shaped manner. Plaque obtained from a patient with periodontitis was placed under the wire, and nicotine and ethyl alcohol solutions were injected under the gingival mucosa. A complex index has been proposed to assess inflammation. At the end of the experiment the animals were euthanized, their jaws were dissected into dentoalveolar blocks and further descriptive histologic analysis was performed. Results. On the second day the gingiva of the rats acquired a cyanotic-pink color, on the fourth day the consistency of the gingiva became friable, mobility appeared in the lower incisors. Complex index of inflammation in animals of the main group: before the study—9, on the 7th day—195. Gingival preparations showed signs of exudative inflammation. In alveolar processes—irreversible resorption of bone structures. The difference of indicators in animals before and after the experiment was statistically significant (p < 0.05). Conclusion. The new experimental model of periodontitis is reproduced in a short period of time, provides intensive development of inflammation, leads to disruption of the integrity of epithelial and connective tissue attachment, destruction of alveolar bone.

Anxiety disorders are widespread in the population and in general medical practice and have a pronounced negative impact on the quality of life and functioning of patients. Currently, the prerequisites for the diagnosis and treatment of anxiety disorders outside the psychiatric network are accumulating by therapists, general practitioners and other non-psychiatric doctors. A review of the most significant factors contributing to a wider diagnosis and treatment of anxiety disorders in general medical practice is given. This review presents modern ideas about the pathogenesis of anxiety disorders, substantiates the modern idea of their multifactorial nature, the contribution of genetic and epigenetic, psychological and social factors, outlines the concepts of the neurobiological basis of pathological anxiety based on neuroimaging studies. In the future, information is provided on the general manifestations of anxiety disorders, the main clusters of anxiety, the systematics of anxiety disorders according to ICD-10. Modern ideas about the diagnosis of anxiety disorders using both scales and a clinical approach are given, a detailed review of currently available diagnostic scales validated for clinical practice is presented. The main approaches to conducting a clinical conversation are also presented, recommendations are given for the most successful collection of information about the clinical condition of patients. At the end of the review, information is given on existing approaches to psychopharmacotherapy and psychotherapy of anxiety disorders. Taking into account pharmacological and clinical studies, the place of drugs tofisopam (an atypical allosteric modulator of GABA receptors) and buspirone (a partial agonist of serotonin 1A receptors) in the treatment of anxiety disorders in general medical practice has been argued.

To study clinical types of psychosomatic reactions with stress-induced atrial fibrillation (AF) and their contribution to personality disorders and characteristics of stressors. The sample consisted of 34 patients with a stress-induced AF. A clinical/psychopathological method and psychometric scales were used. Two groups of stress-induced psychosomatic reactions were identified. The first group somatic reactions led to a somatic catastrophe and were associated with paranoia and schizotypal personality disorders, constitutional alexithymia, as well as resistance to somatic problems. Second group was characterized by mental reactions leading to AF revealed predominantly in individuals with a histrionic and anxious personality disorders, reactive lability and the high level of neuroticism under the influence of severe stressors. The dynamics of psychopathological symptoms after AF manifestation was associated with different clinical forms of hypochondria.