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Ashwagandha: Effects on Stress, Inflammation and Immune Cell Activation

2014-08-27 03:25:17 | BioPortfolio

Summary

Ayurvedic medicine has been practiced in for more than 2,500 years. Ashwagandha is one of the most widely utilized herbs in the system. It is thought to affect the endocrine, immune, nervous, and cardiopulmonary systems. This study is designed as a preliminary investigation of the effects of Ashwagandha on stress, inflammation, and immune modulation. Participants will take the liquid extract in cow's milk twice a day for five days. The results of initial, one-day, and final blood draws will be compared to determine participant's beginning and ending levels of cortisol, inflammatory cytokines, and immune-cell activation (CD4 T-cells, CD8 T-cells, B cells and natural killer cells). Measurements will be completed using flow cytometry and ELISA assay. The purpose of this study is to determine which effects of Ashwagandha are most suitable for further investigation.

Description

Due to the increased use of alternative medicine, supplements and herbs are consumed more frequently in the treatment of common ailments. This pilot study investigates the immune, anti-inflammatory and anti-stress effects of Ashwagandha in human subjects.

Liquid extract of the herb will be taken followed by milk; this mode of administration will be used as it approximates the traditional administration as well as making self administration easier for participants. Extract will be taken in 3 milliliter quantities 2 times per day, (morning and evening), for five days. Total dosage of 6 milliliters will approximate the higher end of the traditional daily dosage of 6 grams daily of powdered root.

Flow of visit:

25 participants will arrive at the research lab and after being consented, filling out health histories and two stress questionnaires, (POMS and STAI Self-Evaluation), average milk intake questionnaire. The 25 participants will receive blood draws. They will then be administered the herb extract, milk and instructions for taking them.

Subjects will return to the research institute after 24 hours for a second blood draw and then after 5 days for a final blood draw and two more stress questionnaires, (POMS and STAI Self-Evaluation).

Once the blood samples are drawn, they will be refrigerated and processed within 24 hours at the NCNM laboratory. Initially they will be centrifuged to separate the white from the red blood cells using Ficoll separating tubes. Then the white blood cells will be stained using CD69 marker (Cytokine Detection type 69) which assesses cell-surface phenotypic markers in combination with intracellular cytokines, measuring response to activation. It is especially effective for rare-event, antigen-specific events, such as the administration of a specific immune-stimulating herbal tincture. We will also stain with other similar florescent CD markers specific for CD4 T-cells, CD8 T-cells, B-cells, NK cells, and macrophages. These markers will be analyzed using a FACScan flow cytometer, which will count the number of cells that have been activated in each subtype of the immune cell and overall action. Blood will also be analyzed for cortisol levels and inflammatory cytokines, (IL-1, IL-6 and TNF-alpha) using the ELISA assay procedure.

Study Design

Allocation: Non-Randomized, Control: Uncontrolled, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Prevention

Conditions

Inflammation

Intervention

Ashwagandha

Location

Helfgott Research Institute
Portland
Oregon
United States
97201

Status

Completed

Source

National College of Natural Medicine

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:25:17-0400

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