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Rheum officinale (a traditional Chinese medicine) for chronic kidney disease.

Abstract：

BACKGROUND:Chronic kidney disease (CKD) is a major public health issue worldwide. Standard therapies to delay CKD progression include dietary protein restriction and administration of angiotensin-converting enzyme inhibitors (ACEi) and angiotensin receptor blockers (ARB) to help control blood pressure and confer additional renoprotective effects. Despite such interventions, CKD incidence and mortality rates continue to increase. Rheum officinale (Da Huang) a medicinal herb used widely in China to treat CKD has been reported to offer a range of pharmacological properties that may delay disease progression. OBJECTIVES:To assess the benefits and harms of Rheum officinale for preventing the progression of CKD. SEARCH METHODS:We searched the Cochrane Renal Group's Specialised Register and CENTRAL (Issue 4, 2011), MEDLINE, EMBASE, the Chinese Biomedicine Database (CBM), China National Knowledge Infrastructure (CNKI), VIP (Chongqing VIP Chinese Science and Technology Periodical Database), and Wanfang Data. We also handsearched reference lists of articles. We applied no restrictions on language of publication. SELECTION CRITERIA:We included randomised controlled trials (RCTs) and quasi-RCTs that assessed the benefits and harms of Rheum officinale for preventing the progression of CKD regardless of dosage, type, maturity, mode of administration, duration of treatment, or storage time before use. DATA COLLECTION AND ANALYSIS:Two authors independently screened titles and abstracts for eligibility, assessed study quality, and extracted data. We expressed results for dichotomous outcomes (need for renal replacement therapy, all-cause mortality, quality of life) as risk ratios (RR) with 95% confidence intervals (CI). Continuous outcomes (glomerular filtration rate (GFR), serum creatinine (SCr), creatinine clearance (CrCl), blood urea nitrogen (BUN)) were expressed as mean differences (MD) with 95% CIs. MAIN RESULTS:We identified nine studies that enrolled 682 participants. None of the studies reported blinding or group allocation methods. Seven studies were judged to be at low risk of incomplete outcome reporting; three studies were judged to be a low risk of selective reporting (protocols were available and/or all outcomes relevant to the this review were reported); and two studies were judged free of other potential biases.Seven studies compared Rheum officinale with no treatment and two made comparisons with captopril, an angiotensin-converting enzyme inhibitor (ACEi). Compared with no treatment, Rheum officinale had a positive effect on SCr (MD -87.49 µmol/L, 95% CI -139.25 to -35.72) and BUN (MD -10.61 mmol/L, 95% CI -19.45 to -2.21). Compared with captopril, a statistically significant difference was not demonstrated in relation to Rheum officinale for any outcome (BUN, CrCl, or patients' capacity to undertake work). No data were available on all-cause mortality or cost of treatment. Only minor adverse events were reported in association with Rheum officinale. AUTHORS' CONCLUSIONS:Currently available evidence concerning the efficacy of Rheum officinale to improve SCr and BUN levels in patients with CKD is both scant and low quality. Although Rheum officinale does not appear to be associated with serious adverse events among patients with CKD, there is no current evidence to support any recommendation for its use.

journal_name

Cochrane Database Syst Rev

journal_title

The Cochrane database of systematic reviews

authors

Wang H,Song H,Yue J,Li J,Hou YB,Deng JL

doi

10.1002/14651858.CD008000.pub2

subject

Has Abstract

pub_date

2012-07-11 00:00:00

pages

CD008000

issue

issn

1469-493X

pub_type

杂志文章,meta分析,评审

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Rheum officinale (a traditional Chinese medicine) for chronic kidney disease.