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1.
J Integr Complement Med ; 29(4): 224-233, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36749149

RESUMO

Introduction: The stress and psychological factors affect the human transcriptomic and epigenomic landscapes. Preksha Dhyana meditation (PM) was found to be effective, in novice healthy college student meditators, at the cognitive skills and transcriptomic levels. Recently published data showed that PM induced alterations at the transcriptome level in healthy and novice college students. Methods: To decipher potential mechanisms underlying the PM effect at the cellular level, array-based methylation analyses in peripheral blood were performed at baseline and 8 weeks postintervention in 34 participants. Results: Overall, 470 CpG sites were nominally differentially methylated (p ≤ 0.05 and change magnitude from ≥3% to ≤ -3%) between baseline and 8 weeks postintervention with 180 sites hypermethylated and 290 sites hypomethylated. Pathway analysis of the genes linked to the differentially methylated sites revealed the enrichment of several molecular and cellular signaling pathways, especially metabolic and brain function signaling pathways. Conclusions: Besides its beneficial effects on cognitive skills and transcriptome alterations, the current data indicate that PM meditation also affects the DNA methylation profile of novice and healthy college students 8 weeks postintervention. Clinical Trial Registration: NCT03779269.


Assuntos
Metilação de DNA , Meditação , Humanos , Ilhas de CpG , Metilação de DNA/genética , Perfilação da Expressão Gênica , Estudantes
2.
Brain Sci ; 13(8)2023 Aug 17.
Artigo em Inglês | MEDLINE | ID: mdl-37626570

RESUMO

The impact of different meditation protocols on human health is explored at the cognitive and cellular levels. Preksha Dhyana meditation has been observed to seemingly affect the cognitive performance, transcriptome, and methylome of healthy and novice participant practitioners. In this study, we performed correlation analyses to investigate the presence of any relationships in the changes in cognitive performance and DNA methylation in a group of college students practicing Preksha Dhyana (N = 34). Nine factors of cognitive performance were assessed at baseline and 8 weeks postintervention timepoints in the participants. Statistically significant improvements were observed in six of the nine assessments, which were predominantly relating to memory and affect. Using Illumina 850 K microarray technology, 470 differentially methylated sites (DMS) were identified between the two timepoints (baseline and 8 weeks), using a threshold of p-value < 0.05 and methylation levels beyond -3% to 3% at every site. Correlation analysis between the changes in performance on each of the nine assessments and every DMS unveiled statistically significant positive and negative relationships at several of these sites. The identified DMS were in proximity of essential genes involved in signaling and other important metabolic processes. Interestingly, we identified a set of sites that can be considered as biomarkers for Preksha meditation improvements at the genome level.

3.
Saudi J Biol Sci ; 29(4): 2299-2305, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35531197

RESUMO

Background: The human transcriptome across a variety of cell types and tissues are affected by stress and other psychological factors. Preksha Dhyana meditation (PM) is effective at improving cognitive skills in novice healthy college student meditators after 8 weeks of intervention, but the molecular and cellular mechanisms involved in these improvements are still largely unknown. Methods: In order to decipher potential mechanisms at the cellular level, transcriptomic profiling analyses, from peripheral blood, were performed at baseline and 8 weeks post-intervention in 18-paired participants (RNASeq). Results: At the transcriptomic level, 494 genes were nominally differentially expressed (p-value ≤ 0.05) between baseline and 8 weeks post-intervention. Our data showed that 136 genes were upregulated, while 358 genes were downregulated. These genes were enriched in several cellular pathways including innate and adaptive immunity, cell signaling, and other metabolic processes. Conclusions: Overall, our findings indicate that PM meditation affects gene expression patterns from whole blood in novice healthy college students. Improvements at the cognitive skills were also mirrored with changes at RNA expression profiling.

4.
Front Pediatr ; 9: 646686, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34113586

RESUMO

Introduction: Mind body techniques such as meditation improve symptoms in children and adults with IBS. Typical courses, however, are lengthy and difficult to administer. We report our experience with a short course of Preksha Dhyana (PD), a child-friendly focused meditation with yoga. Method: Physicians deliver focused meditation while medical assistants taught yoga. Three sessions were administered biweekly with recommendations for daily practice. Pain severity Likert scores were compared with a treatment as usual (TAU) historical control. Anxiety scores were compared from baseline in the PD group. Results: Thirty PD patients aged 9-17 (20 female) and 52 consecutive TAU group aged 5-17 (33 female) were reviewed. The biweekly sessions had high (71%) completion rates. Utilization rates of PD were similar to TAU despite added sessions. The PD group had an average time of follow-up of 8.9 ± 9.4 vs. 6.0 ± 3.9 months in the TAU group (p = 0.522). Changes in pain scores from baseline showed improvement in the PD group, 0.67 ± 0.13 vs. TAU 1.39 ± 0.11 (p = 0.0003). In the PD group, anxiety scores improved significantly from baseline (0.5 vs. 1, P < 0.001). Pain improved in 93% (28/30) and resolved in 47% (14/30). Conclusion: A short course of PD was successfully embedded in a busy pediatric office without additional staffing. The approach proved cost-effective without increasing overall healthcare utilization and showed significant benefits over TAU. Pending RCT confirmation, this offers a cost-effective method to incorporate mind-body techniques into a pediatric office practice.

5.
Front Psychol ; 12: 607573, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33746830

RESUMO

Meditation refers to a family of self-regulation practices that focuses on training attention and awareness to foster psycho-emotional well-being and to develop specific capacities such as calmness, clarity, and concentration. We report a prospective convenience-controlled study in which we analyzed the effect of two components of Preksha Dhyana - buzzing bee sound meditation (Mahapran dhvani) and color meditation (lesya dhyana) on healthy college students. Mahapran and lesya dhyana are two Preksha Dhyana practices that are based on sound and green color, respectively. The study population represents a suitable target as college students experience different stress factors during the school year. This study measures the individual and combined effects of two techniques (one focusing on sound and one focusing on color), on short-term memory, attention, and affect, in novice meditators. We used a battery of cognitive, performance, and compared results with baseline and control values. We found improved cognition, especially attention, short-term memory, and affect in terms of positivity and reduced negativity. Overall, the two techniques produced variable benefits and subjects showed improved scores over baseline for short-term memory, cognitive function, and overall wellbeing. Further studies are required to understand underlying mechanisms for the observed differences between the two techniques and to elucidate mechanisms underlying the more pronounced and global benefits observed with the combined techniques. These results underscore a need to examine individual components of meditation practices in order to individualize treatment approaches for attention disorders in young adults. Clinical Trail Registration:ClinicalTrials.gov Identifier: NCT03779269.

6.
ISRN Pediatr ; 2012: 419168, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23316384

RESUMO

The objective was to assess the efficacy of a one-year, peer-mediated interventional program consisting of yoga, meditation and play therapy maintained by student volunteers in a school in India. The population consisted of 69 students between the ages of 6 and 11 years, previously identified as having attention deficit hyperactivity disorder (ADHD). A program, known as Climb-Up, was initially embedded in the school twice weekly. Local high school student volunteers were then trained to continue to implement the program weekly over the period of one year. Improvements in ADHD symptoms and academic performance were assessed using Vanderbilt questionnaires completed by both parents and teachers. The performance impairment scores for ADHD students assessed by teachers improved by 6 weeks and were sustained through 12 months in 46 (85%) of the enrolled students. The improvements in their Vanderbilt scores assessed by parents were also seen in 92% (P < 0.0001, Wilcoxon). The Climb-Up program resulted in remarkable improvements in the students' school performances that were sustained throughout the year. These results show promise for a cost-effective program that could easily be implemented in any school.

7.
ISRN Pediatr ; 2011: 780745, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-22389788

RESUMO

A low-cost resource approach to ADHD therapy would be a practical approach to treating children in developing countries. Research has shown that ADHD is prevalent in all areas of the world, and yet treatment for children in more impoverished countries is still lacking. The approach taken was to combine yoga and meditation combined with multimodal behavioral therapy program for children ageing 6 to 11. The program was kept low cost by using trained high school volunteers and integrating the program within the public school. After 6 weeks of the program, 90.5% of children showed improvement as measured by their performance impairment score, a measurement of academic performance. Parent and Teacher evaluations of behavior also found improvement as 25 of the 64 children (39.1%) improved into the normal range as measured by the Vanderbilt questionnaire. Moreover, children could successfully learn both yoga and meditation from high school students irrespective of their age, ADHD type, or initial performance impairment. The results demonstrate efficacy of a multimodal behavioral program incorporating yoga and meditation. The use of high school volunteers from schools in the area demonstrates an effective low-cost and universally applicable approach.

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