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Context • Several studies have revealed a high rate of physical and psychological problems from stress among schoolteachers. Yoga is one of the mind-body interventions known to alleviate stress and effects. The mind sound resonance technique (MSRT), a yoga-based, mindfulness relaxation is recognized as having a positive influence on physical and psychological health. Objectives • The study intended to examine the effects of an MSRT intervention for 1 mo on perceived stress, quality of sleep, cognitive function, state and trait anxiety, psychological distress, and fatigue among female teachers. Design • The study was a randomized, controlled trial. Setting • The study occurred at 2 primary schools in Bangalore City, India. Participants • Sixty female teachers, aged between 30 and 55 y, from the 2 schools were enrolled in the study. Intervention • The participants were randomly divided into an MSRT group (n = 30) and a control group (n = 30). Participants in the MSRT group participated in MSRT for 30 min/d, 5 d/wk, for the duration of 1 mo. The participants in the control group followed their normal daily routines. Outcome measures • Perceived stress, sleep quality, cognitive function, anxiety, psychological distress, fatigue, and self-esteem were assessed using standardized assessment tools at baseline and after 1 mo of the intervention. Results • In the MSRT group, a significant reduction occurred for 5 variables: (1) 47.01% for perceived stress (P < .001), (2) 28.76% for state anxiety (P < .001), (3) 13.35% for trait anxiety (P < .001), (4) 32.90% for psychological distress (P < .001), and (5) 44.79% for fatigue (P < .001). A significant improvement occurred for that group for 2 variables: (1) 44.94% for quality of sleep (P < .001), and (2) 12.12% for self-esteem (P < .001). An 11.88% increase occurred for the group for cognitive function, but the change was not significant (P = .111). On the other hand, the control group showed significant increases in 5 variables: (1) 55.56% for perceived stress (P < .001), (2) 13.32% for state anxiety (P < .001), (3) 21.28% for trait anxiety (P < .001), (4) 20.95% for psychological distress (P = .103), and (5) 16.44% for fatigue (P < .001). The group also showed significant decreases in 3 variables: (1) 3.51% for self-esteem (P < .001), (2) 21.39% for quality of sleep (P = .003), and (3) 17.60% for cognitive function (P = .002). A comparison between the 2 groups showed significant differences in 7 variables: (1) perceived stress (P < .001), (2) quality of sleep (P < .001), (3) state anxiety (P < .001), (4) trait anxiety (P < .001), (5) psychological distress (P = .006), (6) fatigue (P = .005), and (7) self-esteem (P < .001). No significant differences existed between the groups in cognitive function (P = .083). Conclusions • In the current study, the practice of MSRT facilitated a reduction in the levels of stress, anxiety, fatigue, and psychological distress. The relaxation technique also enhanced the levels of self-esteem and quality of sleep among female teachers working in primary schools.
Context • Several studies have revealed a high rate of physical and psychological problems from stress among schoolteachers. Yoga is one of the mind-body interventions known to alleviate stress and effects. The mind sound resonance technique (MSRT), a yoga-based, mindfulness relaxation is recognized as having a positive influence on physical and psychological health. Objectives • The study intended to examine the effects of an MSRT intervention for 1 mo on perceived stress, quality of sleep, cognitive function, state and trait anxiety, psychological distress, and fatigue among female teachers. Design • The study was a randomized, controlled trial. Setting • The study occurred at 2 primary schools in Bangalore City, India. Participants • Sixty female teachers, aged between 30 and 55 y, from the 2 schools were enrolled in the study. Intervention • The participants were randomly divided into an MSRT group (n = 30) and a control group (n = 30). Participants in the MSRT group participated in MSRT for 30 min/d, 5 d/wk, for the duration of 1 mo. The participants in the control group followed their normal daily routines. Outcome measures • Perceived stress, sleep quality, cognitive function, anxiety, psychological distress, fatigue, and self-esteem were assessed using standardized assessment tools at baseline and after 1 mo of the intervention. Results • In the MSRT group, a significant reduction occurred for 5 variables: (1) 47.01% for perceived stress (P < .001), (2) 28.76% for state anxiety (P < .001), (3) 13.35% for trait anxiety (P < .001), (4) 32.90% for psychological distress (P < .001), and (5) 44.79% for fatigue (P < .001). A significant improvement occurred for that group for 2 variables: (1) 44.94% for quality of sleep (P < .001), and (2) 12.12% for self-esteem (P < .001). An 11.88% increase occurred for the group for cognitive function, but the change was not significant (P = .111). On the other hand, the control group showed significant increases in 5 variables: (1) 55.56% for perceived stress (P < .001), (2) 13.32% for state anxiety (P < .001), (3) 21.28% for trait anxiety (P < .001), (4) 20.95% for psychological distress (P = .103), and (5) 16.44% for fatigue (P < .001). The group also showed significant decreases in 3 variables: (1) 3.51% for self-esteem (P < .001), (2) 21.39% for quality of sleep (P = .003), and (3) 17.60% for cognitive function (P = .002). A comparison between the 2 groups showed significant differences in 7 variables: (1) perceived stress (P < .001), (2) quality of sleep (P < .001), (3) state anxiety (P < .001), (4) trait anxiety (P < .001), (5) psychological distress (P = .006), (6) fatigue (P = .005), and (7) self-esteem (P < .001). No significant differences existed between the groups in cognitive function (P = .083). Conclusions • In the current study, the practice of MSRT facilitated a reduction in the levels of stress, anxiety, fatigue, and psychological distress. The relaxation technique also enhanced the levels of self-esteem and quality of sleep among female teachers working in primary schools.
Cancer stem cells (CSCs) are stem-like tumor populations that are reported to contribute towards tumor growth, maintenance and recurrence after therapy. Hypoxia increases CSC fraction and promotes acquisition of a stem-cell-like state. Cancer stem cells are critically dependant on the hypoxia-inducible factor-1 (HIF-1) for survival, self-renewal, tumor growth and maintenance of their undifferentiated phenotype. Recent researches show that stage of differentiation of the tumor cells is predictive of their susceptibility to natural killer cell (NK) cell mediated cytotoxicity and cancer stem cells are significant targets of NK cell cytotoxicity. Studies also show that reversion of tumor cells to a less-differentiated phenotype can be achieved by blocking NFκB. Yoga therapy (yogic lifestyle modifications encompassing physical postures, breathing practices, relaxation techniques and meditations) is known to modulate neural, endocrine and immune functions at the cellular level through influencing cell cycle control, aging, oxidative stress, apoptosis and several pathways of stress signaling molecules. Yoga therapy has also been shown to enhance natural killer cell activity and modulate stress and DNA damage in breast cancer patients receiving radiotherapy. Recent study found that brief daily yogic meditation may reverse the pattern of increased NFκB-related transcription of pro-inflammatory cytokines in leukocytes. Thus, yoga therapy has the potential to reduce cancer stem cell survival, self -renewal and tumor growth by modifying the tumor micro-environment through various mechanisms such as; 1) reducing HIF-1 activity by enhanced oxygenation, 2) promoting NK cell activity directly (or indirectly through down regulating NFκB expression), thereby enhancing NK cell mediated CSC lysis, and 3) by minimizing the aberrant expressions or activities of various hormones, cytokines, chemokines and tumor signaling pathways. Yoga therapy may have a synergistic effect with conventional modalities of treatment in preventing cancer progression and recurrences.