Effects of Tea Catechin Consumption on the Prophylaxis of Influenza Infection

2014-08-27 03:18:10 | BioPortfolio


The Purpose of this study is to evaluate the effects of 5 months catechin consumption on the prevention of influenza infection.


Catechins are the major components of tea flavonoids and are reported to possess physiological activities such as antiviral effects. Recent experimental studies have revealed that tea catechin extracts prevent influenza infection, but few studies have been conducted on the clinical effects of tea catechin consumption on the prophylaxis of influenza infection. Based on these backgrounds, we designed a prospective randomized controlled study to evaluate the effects of 5 months tea catechin consumption on the prophylaxis of influenza infection.

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Prevention


Influenza Infection


tea catechin extracts


White Cross Nursing Home
Higashi Murayama




University of Shizuoka

Results (where available)

View Results


Published on BioPortfolio: 2014-08-27T03:18:10-0400

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Medical and Biotech [MESH] Definitions

An antioxidant flavonoid, occurring especially in woody plants as both (+)-catechin and (-)-epicatechin (cis) forms.

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Membrane glycoproteins from influenza viruses which are involved in hemagglutination, virus attachment, and envelope fusion. Fourteen distinct subtypes of HA glycoproteins and nine of NA glycoproteins have been identified from INFLUENZA A VIRUS; no subtypes have been identified for Influenza B or Influenza C viruses.

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