Herbal Help for a Common STD
November 21, 2007—A study finds that green tea extract may be an effective treatment for genital warts—one of the fastest growing sexually transmitted diseases, according to the study’s authors.
Typical treatments for this condition include freezing (cryotherapy), laser treatment, and podofilox topical gel, which may be painful and expensive and often fail to prevent recurrence. The new study examined the role of catechins—a component of green tea leaves—which have anti-inflammatory, immunomodulatory, and antitumor properties—as a treatment for genital warts caused by human papillomaviruses (HPV).
The study looked at the effect of polyphenon E, an extract of green tea leaves from the Camellia sinensis species, on 242 people with genital warts. They were randomly assigned to receive polyphenon E 15% ointment, polyphenon E 10% cream, or placebo and instructed to topically apply their assigned treatment three times a day for 12 weeks.
The 15% ointment was the most effective treatment for clearing genital warts; no differences in recurrence rates were noted among the treatment groups. About 8% of the people experienced local skin reactions and other side effects. However, most were mild and subsided over the course of the study.
Studies in China have also shown that green tea extract can be a effective genital wart treatment, and there is some possibility that oral administration of polyphenon E might also be effective. The authors conclude, “Polyphenon E is a favorable new self-applicable treatment for external genital warts with properties that differ from other treatments.”
(J Eur Acad Dermatol Venereol 2007;21:1404–12)
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Jane Hart, MD, board-certified in internal medicine, serves in a variety of professional roles including consultant, journalist, and educator. Dr. Hart, a Clinical Instructor at Case Medical School in Cleveland, Ohio, writes extensively about health and wellness and a variety of other topics for nationally recognized organizations, Web sites, and print publications. Sought out for her expertise in the areas of integrative and preventive medicine, she is frequently quoted by national and local media. Dr. Hart is a professional lecturer for healthcare professionals, consumers, and youth and is a regular corporate speaker.
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