A prune—or six—a day may keep inflammation at bay | 一個李子 – 或一天六個可以防止炎症

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News Release

Study suggests daily prune consumption may reduce osteoporosis risk after menopause

Peer-Reviewed Publication

Experimental Biology

Janhavi Damani
image: Janhavi Damani, MS, Pennsylvania State University view more 

Credit: Janhavi Damani

Philadelphia (April 2, 2022)—A study in postmenopausal people suggests eating nutrient-rich prunes every day may be beneficial to bone health, reducing inflammatory factors that contribute to osteoporosis. The research will be presented this week in Philadelphia at the American Physiological Society’s (APS) annual meeting at Experimental Biology 2022.

 

An estimated 13.6 million people in the U.S. over the age of 50 will develop osteoporosis—a loss of bone strength caused by reduced mineral density of the bones—by the year 2030. Osteoporosis increases the risk of fracture, especially in older adults. People who experience menopause have lower levels of estrogen, which trigger an increase in inflammation in the body, which can also contribute to bone loss.

 

Previous research has shown that polyphenol extracts—plant compounds that act as antioxidants and reduce inflammation—in prunes promote lower levels of oxidative stress and inflammation in a type of bone cell called osteoclasts. In a new study, researchers from the Integrative and Biomedical Physiology Program and the Departments of Nutritional Sciences and Kinesiology at The Pennsylvania State University explored the effects of prunes on bone health after menopause.

 

Postmenopausal women with a bone mineral density score that was defined as low—a marker of osteoporosis—were divided into three groups:

  • One group ate 50 grams (g) of prunes (about six prunes) daily for 12 months.
  • A second group ate 100 g of prunes (about 12 prunes) daily for 12 months.
  • A control group ate no prunes.

 

The research team looked at blood samples taken from all volunteers before and after the trial and found significant reductions in inflammatory markers in both of the prune-eating groups compared to the control group.

 

“Our findings suggest that consumption of six to 12 prunes per day may reduce pro-inflammatory mediators that may contribute to bone loss in postmenopausal women. Thus, prunes might be a promising nutritional intervention to prevent the rise in inflammatory mediators often observed as part of the aging process,” said Janhavi Damani, MS, first author of the study.

 

NOTE TO JOURNALISTS: To schedule an interview with a member of the research team, or request the abstract, “A randomized controlled trial of dietary supplementation with prunes (dried plums) on inflammatory markers in postmenopausal women,” please contact the APS Communications Office or call 301.634.7314. Find more research highlights in the APS Newsroom.

 

About Experimental Biology 2022

Experimental Biology is the annual meeting of five societies that explores the latest research in physiology, anatomy, biochemistry and molecular biology, investigative pathology and pharmacology. With a mission to share the newest scientific concepts and research findings shaping clinical advances, the meeting offers an unparalleled opportunity for global exchange among scientists who represent dozens of scientific areas, from laboratory to translational to clinical research.

 

About the American Physiological Society

Physiology is a broad area of scientific inquiry that focuses on how molecules, cells, tissues and organs function in health and disease. The American Physiological Society connects a global, multidisciplinary community of more than 10,000 biomedical scientists and educators as part of its mission to advance scientific discovery, understand life and improve health. The Society drives collaboration and spotlights scientific discoveries through its 16 scholarly journals and programming that support researchers and educators in their work.

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