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PLoS By Category | Recent PLoS Articles
Gastroenterology and Hepatology - Infectious Diseases - Pharmacology - Public Health and Epidemiology - Urology

Traditional Herbal Medicine Use Associated with Liver Fibrosis in Rural Rakai, Uganda
Published: Tuesday, November 27, 2012
Author: Brandon J. Auerbach et al.

by Brandon J. Auerbach, Steven J. Reynolds, Mohammed Lamorde, Concepta Merry, Collins Kukunda-Byobona, Ponsiano Ocama, Aggrey S. Semeere, Anthony Ndyanabo, Iga Boaz, Valerian Kiggundu, Fred Nalugoda, Ron H. Gray, Maria J. Wawer, David L. Thomas, Gregory D. Kirk, Thomas C. Quinn, Lara Stabinski, Rakai Health Sciences Program

Background

Traditional herbal medicines are commonly used in sub-Saharan Africa and some herbs are known to be hepatotoxic. However little is known about the effect of herbal medicines on liver disease in sub-Saharan Africa.

Methods

500 HIV-infected participants in a rural HIV care program in Rakai, Uganda, were frequency matched to 500 HIV-uninfected participants. Participants were asked about traditional herbal medicine use and assessed for other potential risk factors for liver disease. All participants underwent transient elastography (FibroScan®) to quantify liver fibrosis. The association between herb use and significant liver fibrosis was measured with adjusted prevalence risk ratios (adjPRR) and 95% confidence intervals (CI) using modified Poisson multivariable logistic regression.

Results

19 unique herbs from 13 plant families were used by 42/1000 of all participants, including 9/500 HIV-infected participants. The three most-used plant families were Asteraceae, Fabaceae, and Lamiaceae. Among all participants, use of any herb (adjPRR?=?2.2, 95% CI 1.3–3.5, p?=?0.002), herbs from the Asteraceae family (adjPRR?=?5.0, 95% CI 2.9–8.7, p<0.001), and herbs from the Lamiaceae family (adjPRR?=?3.4, 95% CI 1.2–9.2, p?=?0.017) were associated with significant liver fibrosis. Among HIV infected participants, use of any herb (adjPRR?=?2.3, 95% CI 1.0–5.0, p?=?0.044) and use of herbs from the Asteraceae family (adjPRR?=?5.0, 95% CI 1.7–14.7, p?=?0.004) were associated with increased liver fibrosis.

Conclusions

Traditional herbal medicine use was independently associated with a substantial increase in significant liver fibrosis in both HIV-infected and HIV-uninfected study participants. Pharmacokinetic and prospective clinical studies are needed to inform herb safety recommendations in sub-Saharan Africa. Counseling about herb use should be part of routine health counseling and counseling of HIV-infected persons in Uganda.

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