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Latest Xenopus Stories

2013-10-03 16:25:09

The stresses that come with aging, chemotherapy treatments, and environmental exposures all threaten fertility. But what if there were a way to preserve women's limited egg supply? Researchers reporting on studies conducted in frog and mouse eggs in the Cell Press journal Molecular Cell on October 3rd may have found a way. The findings come at an important time when many women are waiting longer and longer to have children, renewing interest in the development of strategies to preserve...

2013-08-22 23:27:36

The exemplary efforts of Xenopus employees to uphold quality also bring gains in production, and they are rewarded with wage increases. Morriburg, Ontario (PRWEB) August 22, 2013 Continuous improvements have meant a banner year for the small dental Drill manufacturer. Xenopus inc. has managed to be a winner in lean times. “Our dedicated staff, technological improvements and increases in productivity have resulted in incredible improvements in production and sales,” said Joanne Kydd,...

X-ray Tomography On An Embryo Of A Living Frog
2013-05-16 14:51:20

Karlsruhe Institute of Technology Classical X-ray radiographs provide information about internal, absorptive structures of organisms such as bones. Alternatively, X-rays can also image soft tissues throughout early embryonic development of vertebrates. Related to this, a new X-ray method was presented recently in a Nature article published by a German-American-Russian research team led by KIT. For periods of about two hours, time-lapse sequences of cellular resolution were obtained of...

Cannibalistic Tadpoles Key To Understanding Digestive Evolution
2013-05-08 16:01:09

North Carolina State University A carnivorous, cannibalistic tadpole may play a role in understanding the evolution and development of digestive organs, according to research from North Carolina State University. These findings may also shed light on universal rules of organ development that could lead to better diagnosis and prevention of intestinal birth defects. NC State developmental biologist Nanette Nascone-Yoder, graduate student Stephanie Bloom and postdoc Cris Ledon-Rettig...

Changes In Bioelectric Signals Cause Tadpoles To Grow Eyes In Back, Tail
2011-12-09 03:55:59

For the first time, scientists have altered natural bioelectrical communication among cells to directly specify the type of new organ to be created at a particular location within a vertebrate organism. Using genetic manipulation of membrane voltage in Xenopus (frog) embryos, biologists at Tufts University's School of Arts and Sciences were able to cause tadpoles to grow eyes outside of the head area. The researchers achieved most surprising results when they manipulated membrane voltage...

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2011-01-13 10:18:55

Zoologists of the University Jena clarify the role of the gene FOXN3 for the development of the clawed frog "Don't be a frog!" people say in jest when someone hesitates instead of acting straight away. However to be called a frog should actually be a reason to strengthen one's self-confidence. After all frogs are real winners "“ at least from the point of view of evolutionary biology: Nearly 6.000 species are known today. "In terms of numbers frogs are superior to all the other...

2010-12-09 01:00:00

PARIS, Dec. 9, 2010 /PRNewswire/ -- Cellectis bioresearch, a specialist in genome customization and a subsidiary of Cellectis (Alternext: ALCLS), has today announced the recipient of its post-doctoral fellowship award program. The Genome Customization Award (TGCA) is going to Dr Nelson Lau's research group, from the Department of Biology at the Brandeis University (Waltham, Massachusetts). The award was granted after thorough review of several very high profile applications for its...

2010-10-14 14:56:38

Proteins that import structural material and that regulate the import determine cell size Size matters when it comes to the nucleus of a cell, and now scientists have discovered the signals that control how big the nucleus gets. Nuclear size varies not only among different species, but also in different types of cells in the same species and at different times during development. In addition, cancer cells are known to develop larger nuclei as they become more malignant. Screening for cervical...

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2010-05-07 09:35:00

A pair of University of Houston researchers contributed to the assembly of the first comprehensive DNA sequence of an amphibian genome, which will shed light on the study of embryonic development, with implications for preventing birth defects and more effectively treating many human diseases. Amy Sater and Dan Wells, both professors in UH's department of biology and biochemistry, collaborated with a number of other scientists in what Sater calls "a massive and international effort," landing...

2010-04-29 14:32:00

Rochester's 'Jumping Frog Lab' part of worldwide team decoding Xenopus tropicalis ROCHESTER, N.Y., April 29 /PRNewswire-USNewswire/ -- An African clawed frog has joined the spotted green puffer fish, the honeybee, and the human among the ranks of more than 175 organisms that have had their genetic information nearly completely sequenced. While the research could help scientists better understand the factors causing the vast die-off of amphibians around the globe, scientists are also...


Latest Xenopus Reference Libraries

Western Clawed Frog, Xenopus, tropicalis
2014-08-21 10:26:56

The western clawed frog is also known as the tropical clawed frog and is found widespread in the regions of Nigeria, Liberia, Gambia, Guinea, Cameroon, the Ivory coast, and surrounding areas. The habitat for the western clawed frog is moist areas in tropical and subtropical rivers, lakes, marshes, swamps, agricultural ponds, and canals. The body color of the western clawed frog is light to dark brown and covered with grey and black spots. The eyes protrude up from the head. Tubercles...

Lake Oku Clawed Frog, Xenopus longipes
2014-08-21 10:22:21

The Lake Oku clawed frog is native to and found exclusively in Lake Oku of Cameroon and is fully aquatic. The lake and surrounding forest are now a nature reserve along with several zoos set up with conservation measures to repopulate the species. This species is listed as critical on the IUCN list. The male of the species can reach 1.5 inches while the female is slightly larger at 1.75 inches. All four feet are webbed and the toes and fingers are clawed, giving this species its name. The...

Fraser’s Clawed Frog, Xenopus fraseri
2014-08-21 10:15:53

The Fraser’s clawed frog also known as Fraser’s platanna is wide spread with an abundant population throughout Angola, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Equatorial Guinea, Gabon and Rwanda. The habitat of this species of frog is tropical and subtropical lowlands where there are forests, rivers, freshwater lakes, marshes, ponds and streams. The Fraser’s clawed frog is a water dependent species using it for living and...

African Clawed Frog, Xenopus laevis
2014-08-18 16:16:15

The African clawed frog is found in its natural habitat throughout Africa. However, it has been introduced in North America, South America and Europe. This species is fully aquatic and is found abundantly in ponds, lakes, and rivers. The body color of the African clawed frog is a greenish grey and the skin is smooth and slippery with blotches of grey or brown on the back. The belly is a cream colored with a yellow tint. The average length of this species is five inches. The body and head...

Crowned Bullfrog, Hoplobatrachus occipitalis
2013-07-19 13:24:37

The Crowned Bullfrog (Hoplobatrachus occipitalis) is a species of frog belonging to the Ranidae family. It's located in Algeria, Angola, Burkina Faso, Benin, Burundi, Cameroon, Central African Republic, Chad, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Ethiopia, Gabon, Gambia, Guinea, Guinea-Bissau, Kenya, Libya, Liberia, Mali, Mauritania, Morocco, Nigeria, Niger, Rwanda, Senegal, Sierra Leone, Tanzania, Togo, Uganda, Sudan, Western Sahara, and...

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Word of the Day
omadhaun
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.