Navigation Links
Richer parasite diversity leads to healthier frogs, says University of Colorado study
Date:5/21/2012

the National Science Foundation and a David and Lucile Packard Foundation fellowship awarded to Johnson in 2008.

While the six parasites used in the study are responsible for about 95 percent of trematode infections in the wild, most of the world's parasites cause limited damage to host individuals, said Johnson. In the PNAS study, only two parasites, Ribeiroia and a parasite group called Echinostoma -- which can trigger amphibian mortality -- were known to be particularly dangerous to their host species.

The primary study results support the idea that higher biodiversity can help protect against certain diseases, but few previous studies had considered the diversity of the parasites themselves. Because many parasites compete with each other, ecological systems richer in parasites can act as a buffer against virulent pathogens. Johnson said the combination of extensive field and lab work helped strengthen the study results.

One surprising study finding was that under certain conditions, increases in parasite diversity could increase or decrease host disease. In that aspect of the study, the infection rates were dependent on the order in which the six parasite species were added to the habitats of the frogs, and whether newly added parasite species replaced other parasites or were added alongside them, he said.

If a dangerous parasite is first on the scene, it tends to be replaced when less dangerous species are added, decreasing the odds of host disease. But if a dangerous parasite species is added to an environment already harboring parasites, the study showed either a neutral effect or an increase in disease, Johnson said.

"Collectively, our findings illustrate the importance of considering the hidden role of parasite diversity in affecting disease risk," said Johnson. "While our study was on amphibian diseases, there is ample evidence to suggest similar processes can be occurring in humans and other
'/>"/>

Contact: Pieter Johnson
pieter.johnson@colorado.edu
303-492-5623
University of Colorado at Boulder
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. 1st census shows life in planet ocean is richer, more connected, more altered than expected
2. Lab tests show arthritis drug effective against global parasite
3. Scientists find Achilles heel in life-threatening malaria parasites
4. Weakness can be an advantage in surviving deadly parasites, a new study shows
5. Modified bone drug kills malaria parasite in mice
6. Malaria parasite goes bananas before sex: New study
7. Scientists characterize protein essential to survival of malaria parasite
8. Crucial gene activator in slow-killing parasite identified
9. Global warming changes balance between parasite and host in fish -- new study
10. How parasites modify plants to attract insects
11. Brain parasite directly alters brain chemistry
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Richer parasite diversity leads to healthier frogs, says University of Colorado study
(Date:1/22/2015)... Valid S.A. ("Company") (BM&FBOVESPA: VLID3 ON), is pleased to inform ... State of Washington,s Department of Licensing, in the ... issuance system for driver,s licenses and identification cards to its ... development will start in January 2015, with enrollment and card ...
(Date:1/22/2015)... 2015  A man-made form of insulin delivered by nasal ... in adults with mild cognitive impairment and Alzheimer,s disease ... at Wake Forest Baptist Medical Center. The ... cognitive impairment (MCI) or mild to moderate Alzheimer,s dementia ...
(Date:1/22/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/wxdglm/global_wearable ... "Global Wearable Technologies Market and Applications, Opportunities, Industry ... Forecast 2014-2020" report to their offering. ... that can be worn on the user,s body ...
Breaking Biology News(10 mins):Valid USA Signs Contract For Washington Driver's License Issuance 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 3Global Wearable Technologies Market and Applications, Opportunities, Industry Analysis, Segmentation, Size, Growth, Share, Overview, Trends and Forecast 2014-2020 2
... A study of 36 Spanish honeys from different floral ... honeydew have greater antioxidant properties than those produced by ... this month’s edition of the Journal of the Science ... important ingredients of many foods, and keenly sought in ...
... people will gladly remove excess body fat to improve their ... potential to repair defects and heal injuries in the body. ... Oslo in Norway has identified certain chemical marks that allow ... stem cells in liposuctioned fat, are best at regenerating tissue. ...
... Research Specialist II, and Linheng Li, Ph.D., Associate Investigator, are ... that clarifies how normal stem cells become cancer stem cells ... tumors. , The paper, "PTEN-deficient intestinal stem cells initiate ... on January 21. , The theory that cancer stem ...
Cached Biology News:Liposuctioned fat stem cells to repair bodies 2Linheng Li Lab documents the development of cancer stem cells 2
(Date:2/26/2015)... , Feb. 26, 2015 On behalf ... its affiliated companies, Wilentz, Goldman & Spitzer, P.A. ... secrets lawsuit against Genewiz Inc. in excess of $10 ... utilized GenScript,s trade secrets, and that it improperly hired ... an order denying motions for judgment notwithstanding the verdict, ...
(Date:2/26/2015)... MENLO PARK, Calif. , Feb. 26, 2015 /PRNewswire/ ... has released the latest version of the Governance ... organizations accomplish governance, risk and compliance (GRC) tasks across ... has also been updated to help customers better align ... Organizations of the Treadway Commission ) requirements. In response ...
(Date:2/26/2015)... 2015 The healthcare landscape is rapidly and radically ... Sullivan will host its 20 th Anniversary Medical ... 8 to 10, at the Hilton San Diego Resort and ... This event is a platform for global medical devices, ... disruptions and how to succeed in an uncertain future. ...
(Date:2/26/2015)... February 26, 2015 RURO, Inc., a ... FreezerPro® version 6.2 – the latest update to the ... is that of a quick and easy method to ... the latest version, RURO engineering has enhanced the system’s ... move large amounts of sample records. , "FreezerPro ...
Breaking Biology Technology:Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 2Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 3Protiviti Governance Portal Helps Companies Drive Governance, Risk and Compliance Productivity Across Multiple Business Units 2Protiviti Governance Portal Helps Companies Drive Governance, Risk and Compliance Productivity Across Multiple Business Units 3Embrace the Future of Medical Technologies with Frost & Sullivan 2Embrace the Future of Medical Technologies with Frost & Sullivan 3RURO Releases FreezerPro® version 6.2 2
... April 29, 2011 Keryx Biopharmaceuticals, Inc. (NASDAQ: ... acquisition, development and commercialization of medically important pharmaceutical products ... "Company"), today announced its results for the first quarter ... 2011, the Company had cash, cash equivalents and investment ...
... Frost & Sullivan Europe New Product Innovation Award in ... its state-of-the-art, high precision Novelda Impulse Radar transceiver - ... transceiver is a cutting-edge radar transceiver that incorporates extremely ... penetration capabilities," remarks Frost & Sullivan Research Analyst V. ...
... 2011 Keryx Biopharmaceuticals (Nasdaq: KERX ) ... short-term clinical trial of Zerenex ™ (ferric citrate) ... patients on dialysis.  The Zerenex data was presented earlier ... being held in Las Vegas, Nevada, in an oral ...
Cached Biology Technology:Keryx Biopharmaceuticals, Inc. Announces First Quarter 2011 Financial Results 2Keryx Biopharmaceuticals, Inc. Announces First Quarter 2011 Financial Results 3Keryx Biopharmaceuticals, Inc. Announces First Quarter 2011 Financial Results 4Frost & Sullivan Award Acknowledges Novelda's Cutting-Edge Product Innovation 2Frost & Sullivan Award Acknowledges Novelda's Cutting-Edge Product Innovation 3Frost & Sullivan Award Acknowledges Novelda's Cutting-Edge Product Innovation 4Keryx Biopharmaceuticals Announces Positive Final Data from Zerenex™ Short-Term Phase 3 Study 2Keryx Biopharmaceuticals Announces Positive Final Data from Zerenex™ Short-Term Phase 3 Study 3Keryx Biopharmaceuticals Announces Positive Final Data from Zerenex™ Short-Term Phase 3 Study 4
... system for detection of very low level ... Equipped with an extreme sensitive camera to ... plants in tumor research, infectious disease research, ... NightOWL is the only imager with a ...
... Analyzer and Sorter) large particle flow cytometers ... flow cytometry to applications that were not ... and sorting. Our instruments are based ... cytometers, but are designed to accommodate much ...
Mouse monoclonal antibody raised against a full length recombinant LDB3. NCBI Entrez Gene ID = LDB3...
...
Biology Products: