Experiences of Mindfulness-Based Cognitive Therapy for Premanifest Huntington's Disease.

BACKGROUND: Psychological difficulties such as anxiety, depression, and irritability are common in Huntington's disease, even for premanifest individuals. However, very little evidence exists of psychological approaches to manage this distress. We have conducted a feasibility study with an embedded qualitative component to investigate the possibility of using mindfulness-based cognitive therapy (MBCT) and present here the findings from the qualitative data. OBJECTIVE: To investigate the experience of premanifest individuals learning and practising mindfulness through completing a course of MBCT. METHODS: Twelve premanifest individuals completed a course of MBCT and attended three follow up reunion meetings over the following year. Eleven participants agreed to be interviewed post-course and ten participants one year post-course about their experience of the course and any impact on their lives. Seven participants nominated a friend or relative (supporter) to be involved in the research, of whom six agreed to be interviewed post-course and two at one year about the impact of the course on the participants. Data were analysed using reflexive thematic analysis. RESULTS: Four themes were constructed from the data: 1) A meeting of minds: the group facilitating learning and support; 2) Mindfulness is hard, but enables more effective emotional management; 3) Mindfulness can change the relationship with self and others; and 4) Benefiting from mindfulness: the importance of persistence. CONCLUSION: The participants who completed the course found it beneficial. Some participants reported reductions in psychological distress, a greater sense of calm and better emotion regulation, with some of these positive changes also noticed by supporters. MBCT is worthy of further investigation for this population.

A feasibility investigation of mindfulness-based cognitive therapy for people with Huntington's disease.

BACKGROUND: Huntington's disease (HD) is an inherited neurodegenerative condition which affects movement, coordination and cognitive functioning. Psychological difficulties are commonly experienced; however, psychological interventions have been little researched with this population. We investigated the feasibility of conducting a randomised controlled trial (RCT) of mindfulness-based cognitive therapy (MBCT) with people with the HD genetic mutation, either pre-manifest (before onset of movement symptoms) or at an early disease stage. Specifically, we evaluated the willingness of participants to be recruited into and complete the intervention; the acceptability of the study measures in relation to completion; the feasibility of offering the standard MBCT course to people with HD; the acceptability of the intervention and the estimated effect sizes. METHODS: Participants were recruited from two UK HD centres and took part in an 8-week course of MBCT, with three reunions throughout the following year. Stress, depression, anxiety, and mindfulness were measured pre-, mid-, and post-course, at 3 months and at 1 year. Sleep, quality of life, positive affect and coping were measured pre- and post-course, at 3 months and at 1 year. Descriptive data and approximate effect sizes were calculated. Interviews were conducted post-course and at 1 year and data pertaining to the acceptability of the course were extracted. RESULTS: Twelve participants took part in two groups; all were pre-manifest. Levels of depression and anxiety were low pre-course leaving little room for improvement. Changes in stress and in some aspects of mindfulness were medium to large. The qualitative data suggested participants rated the course highly and found it helpful and no changes to the standard course were needed. Recruitment levels were below those anticipated. Most measures were found to be acceptable. CONCLUSIONS: Although the course was acceptable to those who took part, given the difficulties in recruiting and the rarity of HD, conducting an RCT of MBCT teaching groups in person does not seem feasible. However, alternative modes of course delivery (e.g. online) would allow the recruitment of people from a greater geographical area and may make an RCT feasible; this revised focus would be suitable for future feasibility studies. TRIAL REGISTRATION: ClinicalTrials.gov identifier NCT02464293, registered 8 June 2015.

Anxious, hypoactive phenotype combined with motor deficits in Gtf2ird1 null mouse model relevant to Williams syndrome.

Williams-Beuren syndrome (WBS) is a rare genetic disorder caused by a hemizygous deletion of around 28 genes on the long arm of chromosome 7 (7q11.23), characterized by a unique spectrum of behavioral impairments, including mental retardation, deficits in visuospatial constructive cognition, hypersociability, anxiety and simple phobias. Physical characteristics include dysmorphic faces, short stature, oculomotor deficits, gross and fine coordination impairments, diminished control of balance and mild extrapyramidal signs as well as gait abnormalities resembling gait hypokinesia. Genes near the distal deletion breakpoint appear to contribute most to the WBS cognitive and behavioral profile and include the GTF family of transcription factors: GTF2I, GTF2IRD1, GTF2IRD2. We have previously shown that heterozygous deletions of GTF2IRD1 in humans and homozygous deletion in mice contributes to craniofacial abnormalities. Here we show an important role of this gene in motor coordination and anxiety ascertained from extensive behavioral mouse phenotyping. Gtf2ird1 null mice showed lower body weight, decreased spontaneous and circadian locomotor activity, diminished motor coordination and strength, gait abnormalities, increased anxiety and an elevated endocrinological response to stress. Gtf2ird1 heterozygous mice displayed lower body weight and decreased circadian activity, but only minor motor coordination and anxiety-related behavioral dysfunctions. Our study strongly supports a role for GTF2IRD1 in the motoric and anxiety-related abnormalities seen in Williams-Beuren syndrome, and suggests basal ganglia and potentially cerebellar abnormalities in Gtf2ird1 mice.