Navigation Links
Gorillas carry malignant malaria parasite, study reports
Date:1/19/2010

Irvine, Calif., Jan. 19, 2010 The parasite that causes malignant malaria in humans has been detected in gorillas, along with two new species of malaria parasites, reports a study co-authored by UC Irvine biologist Francisco Ayala.

The study also confirms a recent discovery by Ayala and colleagues that human malignant malaria, caused by Plasmodium falciparum, originated from a closely related parasite found in chimpanzees in equatorial Africa. P. falciparum is responsible for 85 percent of malignant malaria infections in humans and nearly all deaths from the disease.

The researchers cautioned that increased contact between primates and humans mostly because of logging and deforestation creates a greater risk of new parasites being transmitted to humans. It also could further jeopardize endangered ape populations by spreading diseases to them. Finding P. falciparum in gorillas also complicates the challenge of eradicating malaria.

"Hundreds of billions of dollars are spent each year toward ridding humans of malignant malaria. But success may be a pyrrhic victory, because we could be re-infected by gorillas just as we were originally infected by chimps a few thousand years ago," said Ayala, corresponding author of the study, published this week in the Proceedings of the National Academy of Sciences.

The researchers analyzed fecal samples from 125 wild chimpanzees and 84 gorillas in Cameroon and tested blood samples from three gorillas in Gabon. They identified two new closely related species of malaria parasites Plasmodium GorA and Plasmodium GorB that infect gorillas. The animals also were found to harbor P. falciparum, previously thought to only infect humans.

In August, Ayala and colleagues published a study reporting that P. falciparum had been transmitted to humans from chimpanzees perhaps as recently as 5,000 years ago and possibly through a single mosquito. Before then, malaria's origin had been unclear.

Chimpanzees were known to carry the parasite Plasmodium reichenowi, but most scientists assumed the two parasites had existed separately in humans and chimpanzees for the last 5 million years.

The discovery could aid the development of a vaccine for malaria, which each year causes 2 million infant deaths and sickens about 500 million people, mostly in sub-Saharan Africa. It also furthers understanding of how infectious diseases such as HIV, SARS, and avian and swine flu can be transmitted to humans from animals.


'/>"/>

Contact: Jennifer Fitzenberger
jfitzen@uci.edu
949-824-3969
University of California - Irvine
Source:Eurekalert

Related biology news :

1. A year after discovery, Congos mother lode of gorillas remains vulnerable
2. UC Davis launches One Health care for wild mountain gorillas and human neighbors
3. Escherichia coli bacteria transferring between humans and mountain gorillas
4. Tool use in an invertebrate: The coconut-carrying octopus
5. Dust deposited in oceans may carry elements toxic to marine algae
6. Weizmann Institute scientists show extra copies of a gene carry extra risk
7. Polarized light guides cholera-carrying midges that contaminate water supplies
8. Earthworm activity can alter forests carbon-carrying capabilities
9. Can tomatoes carry the cure for Alzheimers?
10. Environmental fate of nanoparticles depends on properties of water carrying them
11. 100 percent of people carry at least 1 type of pesticide
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/5/2017)... 5, 2017  The Allen Institute for Cell Science ... a one-of-a-kind portal and dynamic digital window into the ... the first application of deep learning to create predictive ... lines and a growing suite of powerful tools. The ... and future publicly available resources created and shared by ...
(Date:4/4/2017)... April 4, 2017   EyeLock LLC , a ... the United States Patent and Trademark Office (USPTO) has ... the linking of an iris image with a face ... represents the company,s 45 th issued patent. ... very timely given the multi-modal biometric capabilities that have ...
(Date:3/30/2017)... KONG , March 30, 2017 The ... a system for three-dimensional (3D) fingerprint identification by adopting ground breaking ... into a new realm of speed and accuracy for use in ... at an affordable cost. ... ...
Breaking Biology News(10 mins):
(Date:7/20/2017)... ... 2017 , ... Resoundant, Inc. is pleased to introduce ... U.S. that offer MR Elastography for liver fibrosis staging. MR Elastography is ... liver fibrosis assessment. , “MRE:connect was created in response to an increasing number ...
(Date:7/20/2017)... and PLYMOUTH, Minn., July 20, 2017 /PRNewswire/ ... , a personalized genetic evaluations company, today announced ... their partnership investigating a genetic mutation implicated in ... extend the partnership for a second case involving ... year, the KCNQ2 Cure Alliance and Pairnomix entered ...
(Date:7/18/2017)... (PRWEB) , ... July 18, 2017 , ... ... today announced that Merck, a leading science and technology company, has implemented ... therapeutics for the therapeutic areas of Oncology, Immunology, and Neurodegenerative Diseases. , The ...
(Date:7/17/2017)... ... ... Whitehouse Laboratories is excited to announce that it has ... ISO 80369 standard test procedures. The ISO 80369 series of eight test standards ... this recent expansion, Whitehouse Labs becomes one of the only facilities in the ...
Breaking Biology Technology: