Navigation Links
Misclassified for centuries, medicinal leeches found to be 3 distinct species

ome legitimate, many not. Demand for leeches in 19th-century Europe grew so intense that efforts to protect them led to the some of the earliest legislative efforts at biological conservation.

Leeches are still afforded protection by the World Conservation Union (IUCN) and are regulated by the Convention on International Trade in Endangered Species (CITES), the Berne Convention, and the European Union Habitat Directive.

Commercially available European medicinal leeches also are used extensively by biomedical researchers studying biological processes such as blood coagulation, developmental genetics and neurobiology. Studies of commercial specimens have figured prominently in the discovery and production of anticoagulants and protease inhibitors, some of which may have cancer-fighting properties.

That researchers have been mistakenly using Hirudo verbana in their work for decades may call much of this research, including hundreds of scientific publications, into question and force a reconsideration of what scientists think they know about this widely studied species.

Siddall and his colleagues examined mitochondrial and nuclear DNA of wild leeches from across their range in Europe, as well as from samples supplied by commercial providers and university laboratories that use leeches as model organisms.

Their analysis clearly showed that the commercial and laboratory specimens were not Hirudo medicinalis, as they were labeled, but Hirudo verbana. In addition, the work showed that the specimens of wild European medicinal leeches clearly comprised three genetically distinct species.
'"/>

Source:National Science Foundation


Page: 1 2

Related biology news :

1. New component of the brakes on nerve regeneration found
2. Strongest proof yet found for prion hypothesis
3. A puzzle piece found in unraveling the wiring of the brain
4. New World founders small in number
5. Norovirus found to cause travelers diarrhea
6. Pair of cancer genes found to drive both cell migration and division
7. Alien woodwasp, threat to US pine trees, found in N.Y.
8. Achilles heel of the herpes virus possibly found
9. Purdue scientists may have found key to halting spinal cord damage
10. Unexpected lock and key mechanism found for the assembly of tumor blood vessels
11. New protein vital for immune response is found in surprise location
Post Your Comments:
(Date:8/20/2014)... bags could one day be made out of cocoa, ... now reporting. The novel process they developed and their ... agricultural and plastic waste problems, appear in the ACS ... Bayer and colleagues at the Italian Institute of Technology ... 2012, its production reached 288 million tons worldwide, but ...
(Date:8/20/2014)... When a colony of honeybees grows to about 4,000 ... reproductive cycle: the building of a special type of ... team of experts from the Department of Neurobiology and ... what starts the reproductive cycle of honeybee colonies. The ... The Science of Nature . , Reproduction isn,t ...
(Date:8/20/2014)... POINT ROBERTS, Washington , August 20, 2014 ... Addressing Security Concerns in the Payment Industry?   ... leading sectors including biometrics, issues commentary from analysts and experts ... Peaslee , Managing Partner at Thrive Analytics, Isabelle Moeller ... CEO of NXT-ID, Inc. (OTCBB: NXTD) ( OTCQB:NXTD ), a ...
Breaking Biology News(10 mins):Worker bees 'know' when to invest in their reproductive future 2Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 2Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 3Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 4Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 5Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 6Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 7
... the Institute for Stem Cell Biology and Medicine have demonstrated ... be genetically manipulated and coaxed to develop into mature T-cells, ... The study, to be published the week of July 3 ... Academy of Sciences, found that it is possible to convert ...
... skyrocketed from 497 cases reported in 1982 (the first year ... , Lyme disease, like other zoonoses, is ... a blood meal from a vertebrate host. In the eastern ... blacklegged ticks, Ixodes scapularis, which feed on a wide variety ...
... University of North Carolina at Chapel Hill has identified ... potentially dangerous interactions with certain medications. , For almost ... and pharmacists to avoid grapefruit juice if they are ... control blood pressure or lower cholesterol. Studies have shown ...
Cached Biology News:UCLA researchers develop T-cells from human embryonic stem cells 2A new view on Lyme disease: Rodents hold the key to annual risk 2A new view on Lyme disease: Rodents hold the key to annual risk 3Study identifies substances in grapefruit juice that interact dangerously with some drugs 2
(Date:8/20/2014)... The 6th Annual Arrowhead Personalized and ... 29-30 in San Francisco, CA. This year’s conference brings ... and clinicians focused on addressing and solving the significant ... twelve years since the sequencing of the human genome, ... pharmacogenetic information in the label and molecular diagnostics have ...
(Date:8/20/2014)... your ear could improve the health of your heart, ... of Leeds used a standard TENS machine like those ... to the tragus, the small raised flap at the ... ear canal. , The stimulation changed the influence of ... nervous signals that can drive failing hearts too hard. ...
(Date:8/19/2014)... 20, 2014 One of the ... is an inadequate vascular supply. Nutrient and gas ... tissues is critical for successful regeneration and integration ... mitigate deficiencies in vascularization and promote angiogenesis in ... optimizing scaffold design and architecture, and enhancing scaffolds ...
(Date:8/19/2014)... Pa. , Aug. 19, 2014 A ... has been nominated for a Centers for Disease Control ... addressing a major public health concern. ... System, is one of a team of researchers nominated ... Charles C. Shepard Science Award for Data Methods and ...
Breaking Biology Technology:6th Annual Personalized and Precision Medicine Conference Bringing Together Thought Leaders to Discuss Clinical Implementation, Dx Reimbursement, Big Data, and Sequencing 2'Tickling' your ear could be good for your heart 2Vascularization in Tissue Engineering Highlighted at 12th New Jersey Symposium on Biomaterials Science 2Geisinger investigator nominated for federal award 2Geisinger investigator nominated for federal award 3
... ZymoGenetics, Inc. (Nasdaq:,ZGEN) announced that the company ... update on the regulatory review of recombinant thrombin,(rThrombin). ... on August 22 at 5:00,p.m. Eastern Time by ... the call approximately 10 minutes prior to,the scheduled ...
... Missourians Introduce New Ballot Initiative to Pursue Cures for Patients, ... without involving controversial Human Cloning, WASHINGTON, Aug. ... Missouri to ensure that taxpayer funds,support cures for patients, without ... Research Council, issued the,following statement on the new initiative, Cures ...
... The U.S. Food and Drug,Administration (FDA) today approved ... ages 13-17 and for the short-term,treatment of bipolar ... I disorder in children and adolescents ages 10-17. ... more than 430 adolescents,ages 13-17, in the treatment ...
Cached Biology Technology:ZymoGenetics Will Hold Conference Call Today at 5:00 p.m. Eastern Time to Provide Update on rThrombin 2FDA Approves RISPERDAL(R) to Treat Adolescents with Schizophrenia and Children and Adolescents with Bipolar Mania 2FDA Approves RISPERDAL(R) to Treat Adolescents with Schizophrenia and Children and Adolescents with Bipolar Mania 3
TEMPLIPHI HT SEQ AMPL KIT, 1 EA. Category: Sequencing Template Amplification....
This Malachite Green Phosphate Detection Kit...
Request Info...
1+ mg expected yield of purified protein, expressed in insect cells - excludes cDNA...
Biology Products: