Navigation Links
Broccoli sprout drink enhances detoxification of air pollutants in clinical trial in China

A clinical trial involving nearly 300 Chinese men and women residing in one of China's most polluted regions found that daily consumption of a half cup of broccoli sprout beverage produced rapid, significant and sustained higher levels of excretion of benzene, a known human carcinogen, and acrolein, a lung irritant. Researchers from the Johns Hopkins Bloomberg School of Public Health, working with colleagues at several U.S. and Chinese institutions, used the broccoli sprout beverage to provide sulforaphane, a plant compound already demonstrated to have cancer preventive properties in animal studies. The study was published in the June 9 online edition of the journal Cancer Prevention Research.

"Air pollution is a complex and pervasive public health problem," notes John Groopman, PhD, Anna M. Baetjer Professor of Environmental Health at the Johns Hopkins Bloomberg School of Public Health and one of the study's co-authors. "To address this problem comprehensively, in addition to the engineering solutions to reduce regional pollution emissions, we need to translate our basic science into strategies to protect individuals from these exposures. This study supports the development of food-based strategies as part of this overall prevention effort."

Air pollution, an increasing global problem, causes as many as seven million deaths a year worldwide, according to the World Health Organization, and has in recent years reached perilous levels in many parts of China. Last year, the International Agency for Research on Cancer classified air pollution and particulate matter (PM) from air pollution as carcinogenic to humans. Diets rich in cruciferous vegetables, of which broccoli is one, have been found to reduce risk of chronic degenerative diseases, including cancer. Broccoli sprouts are a source of glucoraphanin, a compound that generates sulforaphane when the plant is chewed or the beverage swallowed. It acts to increase enzymes that enhance the body's capacity to expunge these types of the pollutants.

The 12-week trial included 291 participants who live in a rural farming community in Jiangsu Province, China, approximately 50 miles north of Shanghai, one of China's more heavily industrialized regions. Participants in the control group drank a beverage made of sterilized water, pineapple and lime juice while the beverage for the treatment group additionally contained a dissolved freeze-dried powder made from broccoli sprouts that contained glucoraphanin and sulforaphane. Sixty-two men (21%) and 229 women (79%) with a median age of 53 (ranging from 21 to 65) years were enrolled in the study. Urine and blood samples were taken over the course of the trial to measure the fate of the inhaled air pollutants.

The research team found that among participants receiving the broccoli sprout beverage, the rate of excretion of the carcinogen benzene increased 61% beginning the first day and continuing throughout the 12-week period. In addition, the rate of excretion of the irritant acrolein, rapidly and durably increased 23% during the 12-week trial. Secondary analyses by the investigators indicated that the sulforaphane may be exerting its protective actions by activating a signaling molecule, NRF2, that elevates the capacity of cells to adapt to and survive a broad range of environmental toxins. This strategy may also be effective for some contaminants in water and food.

"This study points to a frugal, simple and safe means that can be taken by individuals to possibly reduce some of the long-term health risks associated with air pollution," notes Thomas Kensler, PhD, professor at the Johns Hopkins Bloomberg School and one of the study's co-authors. "This while government leaders and policy makers define and implement more effective regulatory policies to improve air quality."

The clinical trial targeting prevention is notable in that it evaluated a possible means to reduce the body burden of toxins following unavoidable exposures to pollutants. The majority of clinical trials involve treatments of diseases that have already presented or advanced into later stages. Further clinical trials, to evaluate optimal dosage and frequency of the broccoli sprout beverage, are planned in the same general region of China.

Contact: Susan Sperry
Johns Hopkins University Bloomberg School of Public Health

Related biology news :

1. Better broccoli, enhanced anti-cancer benefits with longer shelf life
2. Illinois scientists put cancer-fighting power back into frozen broccoli
3. Battling brittle bones... with broccoli and spinach?
4. The power of broccoli, in a capsule
5. Dont throw out old, sprouting garlic -- it has heart-healthy antioxidants
6. Gene discovery may yield lettuce that will sprout in hot weather
7. Soda consumers may be drinking more fructose than labels reveal
8. Single episode of binge drinking can adversely affect health according to new UMMS study
9. Sports and energy drink consumption linked with negative behaviors
10. Most schools meet USDA drinking water mandate; more steps needed to encourage consumption
11. Drink milk? Women who do may delay knee osteoarthritis
Post Your Comments:
(Date:6/22/2016)... June 22, 2016   Acuant , ... verification solutions, has partnered with RightCrowd ® ... for Visitor Management, Self-Service Kiosks and Continuous ... that add functional enhancements to existing physical ... and venues with an automated ID verification ...
(Date:6/15/2016)... June 15, 2016 Transparency ... titled "Gesture Recognition Market by Application Market - Global Industry Analysis ... 2024". According to the report, the  global gesture recognition ... 2015 and is estimated to grow at a ... by 2024.  Increasing application of gesture ...
(Date:6/2/2016)... 2, 2016 The Department of Transport ... the 44 million US Dollar project, for the , ... including Personalization, Enrolment, and IT Infrastructure , to ... production and implementation of Identity Management Solutions. Numerous renowned international ... Decatur was selected for the most compliant ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... , June 27, 2016  Liquid Biotech ... announced the funding of a Sponsored Research Agreement ... circulating tumor cells (CTCs) from cancer patients.  The ... in CTC levels correlate with clinical outcomes in ... These data will then be employed to support ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... While the ... such as the Cary 5000 and the 6000i models are higher end machines that ... the height of the spectrophotometer’s light beam from the bottom of the cuvette holder. ...
(Date:6/23/2016)... June 23, 2016   Boston Biomedical , ... compounds designed to target cancer stemness pathways, announced ... granted Orphan Drug Designation from the U.S. Food ... gastric cancer, including gastroesophageal junction (GEJ) cancer. Napabucasin ... to inhibit cancer stemness pathways by targeting STAT3, ...
(Date:6/23/2016)... , ... June 23, 2016 , ... ... YM (Yeast and Mold) microbial test has received AOAC Research Institute approval 061601. ... microbial tests introduced last year,” stated Bob Salter, Vice President of Regulatory and ...
Breaking Biology Technology: