X-ray studies shed light on frog deformities

Editors: For a link to reproducible pictures and x-rays and to other amphibian press releases, please go to http://www.usgs.gov/amphibians.html

The most extensive and detailed study of bone changes found in malformed frogs to date shows that both time- and location-specific environmental events may influence the development of these malformations, according to a paper that will be published soon in the journal Teratology. The study revealed that similar malformations are occurring in frogs collected at the same time from a particular site, indicating that tadpoles at specific sites have received the same type of environmental insult at the same developmental stage.

The data represent 180 frogs collected at 16 sites in three states -- Maine, Minnesota and Vermont -- over two years of study and is the result of a large multi-agency effort involving the USGS National Wildlife Health Center, University of Wisconsin Department of Anatomy, NIH-National Institute of Environmental Health Sciences, Minnesota Pollution Control Agency, Vermont Agency of Natural Resources, and the U.S. Fish and Wildlife Service. Key to accomplishing this multi-agency work was a Memorandum of Understanding between NIEHS and USGS.

Since middle-school students on an outing discovered large numbers of deformed frogs in a Minnesota pond in 1995, the dramatic increase in recent reports of malformed frogs has drawn the attention of scientists and the public. Malformed frogs are now documented in 44 states, in 38 species of frogs and 19 species of toads, with estimates of deformities as high as 60 percent in some local populations. Scientists now agree that current numbers of reported malformations exceed any norm and that the situation warrants urgent attention. These die-offs and deformities of amphibians around the globe are of great concern because amphibians are good baromete

Contact: Catherine Haecker
United States Geological Survey

Page: 1 2 3 4

Related biology news :

1. Many physicians misperceive radiation risks to developing fetuses from X-rays and CT scans
2. New X-ray sources speed protein crystallography
3. Digital X-ray microtomography yields stunning views of limb regeneration
4. X-ray analysis of shipwreck may help conservators save waterlogged artifacts
5. Researchers at Vanderbilts Free-Electron Laser Center are developing new forms of laser surgery, improved X-ray technology, and better methods for protein identification
6. X-ray crystallography at Advanced Photon Source
7. X-rays may show way to better Alzheimers drugs
8. Team Solves X-ray Structure Of Powerful Enzyme
9. Rensselaer marks the opening of the center for biotechnology and interdisciplinary studies
10. UCSD undergraduates participate in collaborative studies abroad on cyberinfrastructure
11. Scientist honored for studies of genetic influence on chemotherapy, tumor development

Post Your Comments:

(Date:8/26/2020)... ... August 24, 2020 , ... Elgia Therapeutics , a ... diseases, today announced that Dr. Stacie Canan has joined the company as its ... served as Executive Director of Global Health at Bristol Myers Squibb (formerly Celgene), ...
(Date:8/23/2020)... ... August 21, 2020 , ... The August ... published and is now available on the company’s global website. Crystallography Times—an electronic ... community, presenting current news and crystallographic research. , The latest issue of ...
(Date:8/21/2020)... ... August 20, 2020 , ... NDA Partners Chairman ... Operations executive with expertise in clinical trial planning and feasibility, regulatory inspection readiness, ... Consultant. Throughout his career, Mr. Movahhed has helped design and manage oncology, neurology, ...
Breaking Biology News(10 mins):
(Date:8/7/2020)... ... 06, 2020 , ... VGXI, a highly regarded CDMO supporting ... purchase of greenfield for a new, expanded manufacturing facility. The site is located ... the initial acquisition, with an option to purchase an additional 21 acres for ...
(Date:7/31/2020)... , ... July 29, 2020 , ... ... solid-state radar transmitter systems that can be configured to drive Klystrons, TWTs, IOTs, ... that can drive one or two switches in a push-pull configuration; yielding fast ...
(Date:7/31/2020)... ... July 30, 2020 , ... ... sciences industry, today announced the release of its signature product called Beacon ... Liaisons (MSLs) and other field medical professionals. , Beacon helps MSLs ...
(Date:7/18/2020)... ... 17, 2020 , ... dicentra , a leading Contract ... industries, is pleased to announce that Charles Galea has joined its clinical trials ... is an accomplished and results-driven sales executive with over 10 years of expertise ...
Breaking Biology Technology:
Cached News: