To address the growing use of ad blockers we now use affiliate links to sites like Amazon.com, streaming services, and others. Affiliate links help sites like QualityCounts.com stay open. Affiliate links cost you nothing but help me support my family. We do not allow paid reviews on this site. As an Amazon Associate I earn from qualifying purchases.  Also, you can donate  to ben@qualitycounts.com via Zelle or PayPal.  Click here for the PayPal QR.  Click here for Bitcoin QR code or Bitcoin address: 39muDw6WpQV8j6EdA8eUBvT5iFDiVpVpiE
Home ReliableRXPharmacy Past Newsletters Amazon.com Contact
 Sign-up for newsletter 
 Newsletter Archive
 Newsletter via RSS Feed
 Research on Supplements
 Health Conditions
 Anti-aging Recommendations
 Insulin and Aging
 QualityCounts.com in Time
 Longevity Affiliates:

Home > Anti-aging Research > Wild Yam

Wild Yam (Dioscorea villosa)

Specific Recommendations:

News & Research:


  • DA-9801, a standardized Dioscorea extract, improves memory function via the activation of nerve growth factor-mediated signaling - Nutr Neurosci. 2020 Mar 27 - "Nerve growth factor (NGF) is a neurotrophin that plays a critical role in mammalian learning and memory functions ... Nerve growth factor (NGF) is a neurotrophin that plays a critical role in mammalian learning and memory functions. NGF also regulates neuronal cell differentiation and neurite outgrowth by activating ERK/CREB signaling. This present study examined the effects of a standardized Dioscorea extract (DA-9801) ... Mice were orally treated with DA-9801 (10 and 100 mg/kg/day) once daily for 7 days. They were subjected to passive avoidance test to evaluate memory functions ... DA-9801 treatment increased the NGF contents and neurite length, respectively. Mice with DA-9801 administration showed memory enhancement in the passive avoidance test. DA-9801 also increased newborn cell differentiation, neurite length, NGF secretion, and ERK/CREB phosphorylation in the mouse hippocampus" - See Dioscorea extract at Amazon.com.