Urolithiasis is usually treated by surgery. However, the high recurrence rate and high cost of treatment call for a non-surgical medical solution. In the Dai minority region of China, the perennial woody vine of Aspidopterys obcordata (Hei Gai Guan) has been used as a folk medicine for the treatment of urinary tract infections, cystitis and urinary tract stones and also treated as a drink for the prevention of kidney stones. However, the material basis and underlying mechanisms remain unclear.
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Source: Phys.org