Navigation Links
Study finds steroids may persist longer in the environment than expected
Date:9/26/2013

ucts that we know are present in trace amounts in our water supply. We should use what we're learning about trenbolone to more closely scrutinize the fate and better mitigate the impact of these products in the environment."

The team found similar results for dienogest, a hormone used in a birth-control pill called Natazia, and dienedone, a banned anabolic steroid that has been marketed as a body-building supplement.

Trenbolone acetate is implanted in the ears of more than 20 million cattle in the United States, according to studies cited by the researchers in their paper.

The drug is metabolized and then excreted by livestock, and makes its way into waterways mainly through runoff.

The steroid has been considered safe due to its rapid degradation, with studies pointing to an environmental half-life of less than a day. But there has been concern that it and other synthetic drugs, when found in concentrated amounts, can be harmful to aquatic species and the environment generally. Studies have pointed to steroids and other drugs' effects on fish, through fewer eggs produced by females to skewing the sex of some species.

"We rarely see fish kills anymore, and we probably aren't discharging many carcinogens into surface waters anymore. But I don't believe this necessarily means that our water is safe for aquatic organisms," says Edward Kolodziej, associate professor in engineering at the University of Nevada-Reno and the other corresponding author on the Science paper. "It just might be harder to characterize the adverse effects associated with contaminant exposures these days."

Sunlight is one catalyst for breaking down compounds in the environment. But in this study, by simulating day and night in the lab, the research team found that the steroid's chemical compounds never fully disappeared in daylight. Moreover, during a simulated night, under typical surface water conditions, some of the compounds regenerated
'/>"/>

Contact: Richard Lewis
richard-c-lewis@uiowa.edu
319-384-0012
University of Iowa
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
2. Law that regulates shark fishery is too liberal: UBC study
3. New study will help protect vulnerable birds from impacts of climate change
4. Study jointly led by UCSB researcher supports theory of extraterrestrial impact
5. BYU study: Using a gun in bear encounters doesnt make you safer
6. 15-year study: When it comes to creating wetlands, Mother Nature is in charge
7. Pycnogenol (French maritime pine bark extract) shown to improve menopause symptoms in new study
8. Crystal structure of archael chromatin clarified in new study
9. EU-funded study underlines importance of Congo Basin for global climate and biodiversity
10. University of Houston study shows BP oil spill hurt marshes, but recovery possible
11. Study demonstrates cells can acquire new functions through transcriptional regulatory network
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... Markets ( http://www.researchandmarkets.com/research/9zq33j/global_chemical ) has announced the ... report to their offering. ... in this market is the increasing demand for medical ... of patient data for quick and correct diagnosis during ...
(Date:12/11/2014)... Markets , http://photos.prnewswire.com/prnh/20130307/600769 ... addition of the "Biometrics Market in India 2015-2019" ... major trend emerging in this market is the adoption ... than one characteristic of an individual for verification and ...
(Date:12/10/2014)... , Dec. 9, 2014  Valencell, a leader in ... seeing a staggering demand from its licensees for highly ... revealed, is not solely coming from fitness and health ... "A wearable is only as useful as ...
Breaking Biology News(10 mins):Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2Wearable Technology Products Demand Highly Accurate Biometric Technology 2
... Accounts of the tsunami that killed over a quarter of ... December, 2004, slowly disappear from the media, but the event ... are directly involved. In the aftermath of the disaster, academics ... of casualties could have been reduced and, more important, how ...
... to reduce the risk of stomach ulcers in people taking ... miscarriage, according to a study by researchers at the National ... Institutes of Health and other research institutions. , The study ... Medicine. , The drug, misoprostol, has been used to reduce ...
... –?from a search of 58,000 compounds –?that appear to ... of the three molecules protects the protein called "tau," ... with Alzheimer's. The finding is promising news for the ... co-director of the Neuroscience Research Institute at the University ...
Cached Biology News:Stem Cells to Solve the Blood Shortage Problem? 2Sleeping Sickness Epidemic Spreading in Uganda 2Sleeping Sickness Epidemic Spreading in Uganda 3Sleeping Sickness Epidemic Spreading in Uganda 4Scientists discover that three molecules may be developed into new Alzheimer's drugs 2Scientists discover that three molecules may be developed into new Alzheimer's drugs 3
(Date:1/23/2015)... 23, 2015  Array BioPharma Inc. (NASDAQ: ARRY ... agreement with Novartis Pharma AG to acquire worldwide rights ... 3 development.  This agreement is conditional on the closing of ... 22, 2014, which are expected to close in the ...
(Date:1/22/2015)... Shimadzu Scientific Instruments today announces the ... Offering wavelength scanning from 190 to 1,100 nm, ... in a variety of industries, including environmental, food ... enables intuitive operation, while the enhanced validation, maintenance ...
(Date:1/22/2015)... , Jan. 22, 2015  Transwestern | RBJ today announces the ... office space for Shire a leading biopharmaceutical company, at Two ... | RBJ,s Robert Richards , president, and Brian ... for the entire five-floor building at 95 Hayden Ave. ...
(Date:1/22/2015)... Protocol Networks brings independent technology consulting to the ... consultants, Protocol Networks has recently announced its expansion into ... his company has attracted several clients in The Constitution ... as others. With the success of these engagements, Rogers ...
Breaking Biology Technology:Array Announces Agreement To Acquire ENCORAFENIB (LGX818) 2Array Announces Agreement To Acquire ENCORAFENIB (LGX818) 3Array Announces Agreement To Acquire ENCORAFENIB (LGX818) 4Array Announces Agreement To Acquire ENCORAFENIB (LGX818) 5Array Announces Agreement To Acquire ENCORAFENIB (LGX818) 6Array Announces Agreement To Acquire ENCORAFENIB (LGX818) 7Shimadzu’s New Monitored Single-Beam UV-Vis Spectrophotometer Offers Comprehensive Measurement Options in a Compact Body 2Transwestern?RBJ Advises Shire in 202,000 SF Lease, Creating Boston's Largest Suburban Biotech Campus 2Protocol Networks Brings Independent Technology Consulting to the Constitution State 2
... City, Mo. - The rate of entrepreneurial activity ... year-to-year shifts in gender, demographic, geographic and ethnic make-up ... according to a national assessment of entrepreneurial activity by ... Kauffman Index of Entrepreneurial Activity also reported a decline ...
... Memorial Day holiday is a paradox. It honors those who ... flags at gravestones and taps in the air, it is ... summer season and with sparkling weather framing joyous graduates, family ... the holiday holds its own festive note as well. I ...
... note: This is the 11th in a series of articles ... , , Madison, Wis. - You've ... equity funds, perhaps through investors. If you still need additional ... point, there are basic financial principles to consider. , ...
Cached Biology Technology:Kauffman study shows consistent entrepreneurial growth 2Who is minding the Innovation Gap? 2Who is minding the Innovation Gap? 3Who is minding the Innovation Gap? 4Who is minding the Innovation Gap? 5Who is minding the Innovation Gap? 6Who is minding the Innovation Gap? 7Who is minding the Innovation Gap? 8Early Stage: Step 11 - Other forms of finance 2Early Stage: Step 11 - Other forms of finance 3Early Stage: Step 11 - Other forms of finance 4
Anti-Mouse C-10, Biotin (Polyclonal) (rabbit IgG)...
Goat polyclonal to SART3 ( Abpromise for all tested applications). Antigen: Synthetic peptide: MSNADFAKLFLRK, corresponding to C terminal amino acids 951-963 of Human SART3 Entrez Gene ID: 9...
... Antibody is used to detect the appearance ... of infected cells as early as 8-24 ... the FastPlax Titer Kit, which allows determination ... The FastPlax Antibody can also ...
Alexa Fluor 647 anti-mouse IL-12 (Interleukin-12) / IL-23 (Interleukin-23) p40 25 ug...
Biology Products: