Hard to enroll participants

Patients with serious chronic renal insufficiency usually develop secondary osteoporosis or bone loss, especially those with chronic dialysis, and the degree of bone loss is corrected with decrease of renal function. In traditional Chinese medicine, kidney function is considered to dominate bone development and metabolism. Kidney Yin and Yang replenishment will help improve bone development and metabolism.

In this study patients with chronic renal insufficiency and secondary osteoporosis or bone loss will be evaluated with traditional Chinese medicine standard and allocated into kidney Yin deficiency and kidney Yang deficiency groups. In Yin deficiency group, patients will be divided into Zuogui granules treatment group and placebo group. In Yang deficiency group, patients will be divided into Yuogui granules treatment group and placebo group. All the patients will also accept basic treatment.

After 3-month-treatment, we will detect blood urea nitrogen, creatinine, bone mineral density, bone metabolism markers including FGF23, 1,25(OH)2D3, Osteocalcin, PTH, BALP, serum and urinal Ca, P. We will also perform miRNA array. The data before treatment and after treatment will be compared. The data of treatment groups and placebo groups will also be compared.

Inclusion Criteria:

• chronic renal insufficiency
• bone loss or osteoporosis
• 30-50 years old
• kidney Yin or Yang deficiency evaluated with traditional Chinese medicine
• be willing to and be able to join in the study and signed Informed consent
• have not accepted systematical treatment on bone loss or osteoporosis

Exclusion Criteria:

• allergies
• secondary osteoporosis caused by other diseases.
• postmenopausal women
• mental illness or psychosis
• patients with bone fracture and need surgery treatment
• taking any medicine that will affect bone metabolism for a long time and can not stop
• women during pregnant stage and breast-feed stage