Navigation Links
Leeches ferry infection among newts

Parasite-carrying bloodsucking leeches may be delivering a one-two punch to newts, according to biologists, who say the discovery may provide clues to disease outbreaks in amphibians.

The findings could also lead to a better understanding of diseases affecting humans, such as malaria, chagas disease and sleeping sickness. All these diseases are transmitted through a vector, an organism that spreads disease from one animal to another.

The researchers found evidence for leech-borne transmission of a little-known fungus-like organism of the genus Ichthyophonus, which infects the muscles of red-spotted newts and other amphibians in North America. It does not appear to kill amphibians but might affect their ability to reproduce. "This is the first evidence that newts are getting infected through the bites of leeches," said Thomas R. Raffel, a postdoctoral researcher at Penn State's Center for Infectious Disease Dynamics, and the study's lead author.

Early infections in the newts appear as clusters of small dark dots under the skin, which can later develop into a large area of swollen muscle. The swollen muscle contains many spores (also called spherules), each of which contains hundreds of infectious cells called endospores. Raffel and his colleagues think that the infection is transmitted when one of these spores bursts open and releases its endospores onto the mouthparts of a feeding leech. Their findings are outlined in the January issue of Journal of Parasitology.

In 2004, Raffel and his Penn State colleagues Peter J. Hudson, professor of biology, and James R. Dillard, then an undergraduate student and now with the Pennsylvania Department of Environmental Protection, conducted a survey of 16 red-spotted newt populations in lakes and ponds near Centre County, Pa. They found the disease in 12 of the 16 newt populations.

A strong correlation between infection prevalence and numbers of bloodsucking leeches, plus the
'"/>

Source:Penn State


Page: 1 2

Related biology news :

1. Dysentery uses sword and shield to cause infection
2. Topical treatment shown to inhibit HIV and herpes simplex virus infection
3. Novel antiviral technology inhibits RSV infection in mice
4. Bacteria collection sheds light on urinary tract infections
5. Scientists decipher genome of fungus that can cause life-threatening infections
6. Yale researchers identify molecule for detecting parasitic infection in humans
7. Molecule that usually protects infection-fighting cells may cause plaque deposits inside arteries
8. Light therapy may combat fungal infections, new evidence suggests
9. Gladstone investigators discover how resting T cells avoid HIV infection
10. New strategies to reduce hospital-aquired infections
11. Virologists make major step towards understanding the process of HIV infection
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Leeches ferry infection among newts

(Date:9/2/2014)... the same DNA sequence their genetic information. How ... in the different parts of the body are so ... master plan, an additional regulatory layer exists that determines ... This mechanism involves modifications of genome-bound histone proteins or ... It acts on top of the genetic information and ...
(Date:9/2/2014)... in the September issue of The FASEB ... strategy to diagnose the leading cause of blindness ... has occurred. This advance involves quantifying the early ... of retinal vessels. Using new probes developed by ... molecular development of diabetic retinopathy. , "My goal ...
(Date:9/2/2014)... D.C., September 2, 2014 A study published ... Journal of the American Academy of Child and ... diagnosed with a psychiatric diagnosis had an increased ... to antipsychotics. , Using data from the nationwide ... Dr. Ren Ernst Nielsen, Psychiatry, Aalborg University Hospital, ...
Breaking Biology News(10 mins):Throwing a loop to silence gene expression 2Molecular probes permit doctors to detect diabetic retinopathy before vision fails 2Risk of diabetes in children and adolescents exposed to antipsychotics 2
... world,s subspecies of tigers are now extinct. A new study ... a result of human activities, particularly the conversion of natural ... The study, conducted by Virginia Tech and World Wildlife ... investigate the use of different land cover types not ...
... People with schizophrenia who completed 80 hours of intensive, ... complex tasks that required them to distinguish their internal ... Neuron (2/22/12), a small clinical study conducted ... the University of California, San Francisco (UCSF), tested the ...
... Biology Department Chairman Thomas Chiles has been named the ... of Biology, the university announced today. Chiles, whose ... by the National Cancer Institute, the National Institutes of ... receive the endowed professorship, which will support his ongoing ...
Cached Biology News:Nowhere to hide: Study finds future of Sumatran tigers threatened by human disturbances 2Nowhere to hide: Study finds future of Sumatran tigers threatened by human disturbances 3Schizophrenia patients' ability to monitor reality may be helped by computerized training 2Schizophrenia patients' ability to monitor reality may be helped by computerized training 3Boston College names Thomas Chiles the Deluca Professor of Biology 2
(Date:9/2/2014)... critical, yet often overlooked factor in the medical ... effects of aggregation on both radiofrequency heating and ... oxide nanoparticles (IONPs), including detailed analysis of the ... is shown to produce significant reductions in both ... new method to quantify and correlate these effects ...
(Date:9/2/2014)... including University of Oregon chemist Geraldine Richmond, have ... self-assembling, synthetic proteins called peptoid nanosheets that mimic ... -- detailed this week in a paper placed ... of the National Academy of Sciences -- ... the two-dimensional peptoid nanosheets that can be used ...
(Date:9/2/2014)... , Sept. 2, 2014  TransCelerate BioPharma Inc. ... recommended approach for protecting personal data in Clinical ... patients and others. The document describes an approach ... from CSRs and other related clinical trial documents, ... The goal of the TransCelerate CSR Redaction approach ...
(Date:9/2/2014)... Opertech Bio, Inc., a company ... effective approach to sensory evaluation, today announced the ... U.S. Patent and Trademark Office, encompassing high-throughput sensory ... “Opertech’s taste evaluation technology called Microtiter Operant Gustometer ... system for rapid characterization of taste sensory properties,” ...
Breaking Biology Technology:Accounting for biological aggregation in heating and imaging of magnetic nanoparticles 2UO-Berkeley Lab unveil new nano-sized synthetic scaffolding technique 2TransCelerate BioPharma Inc. Releases Recommended Approach for Protecting Personal Data in Clinical Study Reports 2TransCelerate BioPharma Inc. Releases Recommended Approach for Protecting Personal Data in Clinical Study Reports 3Opertech Bio Receives U.S. Patent for High-Throughput Taste Evaluation Technology 2
... The Drug Information Association (DIA) will host two co-located ... ... Horsham, PA (PRWEB) ... (DIA)] will host two co-located conferences from October 23-24 ...
... your lap lately, you probably noticed a burning sensation. ... more heat, which has to go somewhere in ... the University of Virginia,s School of Engineering and Applied ... solve the problem using nanoelectronics, considered the essential science ...
... 29 If one Delaware man,s vision,comes true, ... tumors as,they are with breast cancer, and to ... in the Game(R), an awareness campaign in his ... Kelly Heinz-Grundner Brain Tumor Foundation,and early this month ...
Cached Biology Technology:DIA Co-located Conference to Examine Outsourcing and Project Management Best Practices 2Engineers aim to solve 'burning' computer problem 2Delaware Man Spearheads Brain Tumor Awareness 2
...
solute carrier family 25, member 13 (citrin)...
... Ladder is suitable for sizing ... 16 kb by agarose gel ... be visualized by ethidium bromide ... detected on Southern blots by ...
Immunogen: Recombinant full length protein, corresponding to amino acids 1-435 of Human AP2M1. Storage: -20 C, Avoid Freeze/Thaw Cycles...
Biology Products: