About My Health Careers Internship MedBlogs Contact us
Medindia LOGIN REGISTER

Malaria Transmission Linked to Mosquitoes' Sexual Biology

by Shirley Johanna on February 27, 2015 at 2:02 PM
Font : A-A+

 Malaria Transmission Linked to Mosquitoes' Sexual Biology

A team of researchers has revealed that transmission of malaria is linked to mosquitoes' sexual biology, which could pave the way for a new method to control malaria, particularly in the regions where prevalence of malaria are highly reported.

Researchers at Harvard T. H. Chan School of Public Health and University of Perugia, Italy found that Anopheles mosquitoes' reproductive traits evolved along with their capacity to transmit the Plasmodium parasite that causes malaria.


Senior author Flaminia Catteruccia said that their study is the first to reveal the evolutionary dynamics between the sexes that are likely responsible for shaping the ability of Anopheles mosquitoes to transmit malaria to humans.

Anopheles mosquitoes are the only mosquitoes capable of transmitting human malaria, however, the species within this genus vary widely in their ability to do so, for reasons that remain unknown.

The researchers analyzed nine globally dispersed Anopheles species, enabling reconstruction of the evolutionary history of their reproductive traits and capacity to transmit malaria.

They found that two key male reproductive traits in Anopheles are acquired and evolved together over time, that is, transferring ejaculate as a gelatinous rod-shaped structure called the mating plug, and the ability to synthesize a steroid hormone contained in that plug called 20-hydroxyecdysone (20E).

The researchers also demonstrated that the evolution of these male traits drove reciprocal adaptations in females strongly linked to the mosquitos' capacity to transmit malaria.

The findings may also be applicable to Dengue and West Nile virus, which are transmitted by the Aedes and Culex mosquitoes, respectively. In these species some aspects of reproductive biology are similar to Anopheles.

By identifying factors critical for increasing the ability of mosquitoes to transmit malaria, compounds developed to specifically target those factors could be incorporated into existing mosquito control technologies, boosting their overall effectiveness.

The study appears in Science.

Source: Medindia

News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
News Category
What's New on Medindia
Are Black Foods the New Superfood?
Ten Fruits for Diabetics
Natural Supplements Help Reverse Hair Loss during Menopause
View all

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
Malaria-water Malaria Mosquito Diseases Sex Addiction Fever Malaria - Protection Strategies 

Recommended Reading
Malaria
Malaria is caused by a parasite that enters blood through the bite of an infected mosquito. It is .....
Malaria - Waterborne
Encyclopedia section of medindia gives general information about About Malaria Causes...
Scientists Stress On Need For New Malaria Control Strategies
The need for novel measures to tackle malaria hotspots in countries with low levels of the disease ....
Altering Gene of Mosquitoes Brings Hope of Malaria Control
It may soon be possible to control the spread of malaria by altering the DNA of wild mosquitoes, ......
Fever
Fever or Pyrexia is an elevation in normal body temperature. Causes of fever include infections, inj...
Malaria - Protection Strategies
Malaria is a dangerous disease with lethal consequences that requires protective measures for preven...
Mosquito Diseases
Mosquito-borne diseases, like malaria, filaria, dengue, etc are common in places conducive of mosqu...
Sex Addiction
Is sex addiction a malady that can be treated or is it only an excuse for celebrity romps?...

Disclaimer - All information and content on this site are for information and educational purposes only. The information should not be used for either diagnosis or treatment or both for any health related problem or disease. Always seek the advice of a qualified physician for medical diagnosis and treatment. Full Disclaimer

© All Rights Reserved 1997 - 2021

This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use