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Objectives: To study the effectiveness of yoga intervention on oxidative stress, glycemic status, blood pressure and anthropometry in prediabetes. Design: Randomized-controlled trial. Participants: Twenty nine prediabetes subjects aged 30-75 years. Setting: Yoga was conducted at 4 different community diabetes clinics in Mangalore, India. Interventions: Participants were randomized to either 3-month yoga or wait-list control groups. Main outcome measures: Malondialdehyde, glutathione, vitamin C, vitamin E, superoxide dismutase, plasma glucose, glycated haemoglobin, BMI, waist circumference, waist-to-hip ratio and blood pressure. Results: Yoga intervention resulted in a significant decline in malondialdehyde (p< 0.001), relative to the control group. In comparison with the control, there was a significant improvement in BMI, waist circumference, systolic blood pressure and fasting glucose levels at follow-up. No significant improvement in glycated haemoglobin, waist-to-hip ratio or any of the antioxidants was observed. Conclusions: Yoga intervention may be helpful in control of oxidative stress in prediabetes subjects. Yoga can also be beneficial in reduction in BMI, waist circumference, systolic blood pressure and fasting glucose. Effect of yoga on antioxidant parameters was not evident in this study. The findings of this study need to be confirmed in larger trials involving active control groups. (C) 2013 Elsevier Ltd. All rights reserved.

Effects of an integrated yoga program in modulating perceived stress levels, anxiety, as well as depression levels and radiation-induced DNA damage were studied in 68 breast cancer patients undergoing radiotherapy. Two psychological questionnaires--Hospital Anxiety and Depression Scale (HADS) and Perceived Stress Scale (PSS)--and DNA damage assay were used in the study. There was a significant decrease in the HADS scores in the yoga intervention group, whereas the control group displayed an increase in these scores. Mean PSS was decreased in the yoga group, whereas the control group did not show any change pre- and postradiotherapy. Radiation-induced DNA damage was significantly elevated in both the yoga and control groups after radiotherapy, but the postradiotherapy DNA damage in the yoga group was slightly less when compared to the control group. An integrated approach of yoga intervention modulates the stress and DNA damage levels in breast cancer patients during radiotherapy.