Kaszkin-Bettag M, Ventskovskiy BM, Kravchenko A, et al. The special extract ERr 731 of the roots of Rheum rhaponticum decreases anxiety and improves health state and general well-being in perimenopausal women. Menopause. 2007;14(2):270-83. doi:10.1097/01.gme.0000251932.48426.35
Kaszkin-Bettag M, Ventskovskiy BM, Solskyy S, et al. Confirmation of the efficacy of ERr 731 in perimenopausal women with menopausal symptoms. Altern Ther Health Med. 2009;15(1):24-34
Hasper I, Ventskovskiy BM, Rettenberger R, Heger PW, Riley DS, Kaszkin-Bettag M. Long-term efficacy and safety of the special extract ERr 731 of Rheum rhaponticum in perimenopausal women with menopausal symptoms. Menopause. 2009;16(1):117-31. doi:10.1097/GME.0b013e3181806446
Kaszkin-Bettag M, Beck S, Richardson A, Heger PW, Beer AM. Efficacy of the special extract ERr 731 from rhapontic rhubarb for menopausal complaints: a 6-month open observational study. Altern Ther Health Med. 2008;14(6):32-8.
Chong HX, Yusoff NAA, Hor YY, et al. Lactobacillus plantarum DR7 alleviates stress and anxiety in adults: a randomised, double-blind, placebo-controlled study. Benef Microbes. 2019;10(4):355-373. doi:10.3920/bm2018.0135
Liu G, Chong HX, Chung FY, Li Y, Liong MT. Lactobacillus plantarum DR7 Modulated Bowel Movement and Gut Microbiota Associated with Dopamine and Serotonin Pathways in Stressed Adults. Int J Mol Sci. 2020;21(13).
doi:10.3390/ijms21134608
Schön C, Allegrini P, Engelhart-Jentzsch K, Riva A, Petrangolini G. Grape Seed Extract Positively Modulates Blood Pressure and Perceived Stress: A Randomized, Double-Blind, Placebo-Controlled Study in Healthy Volunteers. Nutrients. 2021;13(2):654.
Terauchi M, Horiguchi N, Kajiyama A, et al. Effects of grape seed proanthocyanidin extract on menopausal symptoms, body composition, and cardiovascular parameters in middle-aged women: a randomized, double-blind, placebo-controlled pilot study. Menopause. 2014;21(9):990-996. doi:10.1097/gme.0000000000000200