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:2/2/2016)... , Feb. 2, 2016  Based on its ... & Sullivan recognizes US-based Intelligent Retinal Imaging Systems ... Sullivan Award for New Product Innovation. IRIS, a ... North America , is poised to ... growing diabetic retinopathy market. The IRIS technology presents ...
(Date:1/28/2016)... JOSE, Calif., Jan. 28, 2016 Synaptics (NASDAQ: SYNA ... results for its second quarter ended December 31, 2015. ... second quarter of fiscal 2016 increased 2 percent compared to the ... second quarter of fiscal 2016 was $35.0 million, or $0.93 per ... Non-GAAP net income for the first quarter of fiscal 2016 grew ...
(Date:1/22/2016)... DUBLIN , January 22, 2016 ... has announced the addition of the  ... to their offering. --> ... of the  "Global Behavioral Biometric Market ... --> Research and Markets ( http://www.researchandmarkets.com/research/4lmf2s/global_behavioral ...
Breaking Biology News(10 mins):
(Date:2/11/2016)... February 11, 2016 ... or "Company") (OTCQB: PSID), a life sciences company ... its Thermomedics subsidiary, which markets the Caregiver® FDA-cleared ... plan in January 2016, including entering into agreements ... monthly sales growth, and establishing several near-term pipeline ...
(Date:2/11/2016)... ... 11, 2016 , ... Global Stem Cells Group, ... Ecuador. The new facility will provide advanced protocols and state-of-the-art techniques in cellular ... , The new GSCG clinic is headed by four prominent Ecuadorian physicians, ...
(Date:2/10/2016)... LOUISVILLE, Ky. , Feb. 10, 2016 ... company utilizing its proprietary NeXosome® technology for early ... presentation of its most recent study by Dr. ... Hospital at the Society for Maternal Fetal Medicine,s (SMFM) ... , GA, February 1-6 th , 2016.  The presentation ...
(Date:2/10/2016)... Feb. 10, 2016  Allergan plc (NYSE: AGN ... Brent Saunders , Allergan,s CEO and President, will ... chat session at the RBC Capital Markets Healthcare Conference ... at The New York Palace Hotel in ... webcast live and can be accessed on Allergan,s Investor ...
Breaking Biology Technology: