قالب وردپرس درنا توس
Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Health https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ The discovery of mosquito flavor can change the billions of lives News

The discovery of mosquito flavor can change the billions of lives News



Researchers in the United States have genetically modified mosquitoes to make people less attractive to them-an opening that can significantly reduce the spread of mosquito-borne diseases such as dengue, malaria and zia.

Female mosquitoes were long. It's known that they use a range of touch-sensitive data to find people to bite them.

They may feel exhaled carbon dioxide at a distance of up to 10 meters, and also be able to detect body odor and body moisture

Studies published in Current Biology have shown that the sour component in human sweat plays a key role in attracting insects.

"We wanted to understand the genetic basis of how mosquitoes manifest their human hosts," said Matthew DeGennaro, researcher of mosquito neurobiology at the International University of Florida told Al Jazeera.

Detected gene

Scientists have identified a gene ̵

1; known as Ir8a – expressed in the mosquito antenna. apparently, makes it possible for female mosquitoes who suck blood, the smell of lactic acid, certain sour pairs in human sweat.

Using advanced CRISPR / Cas9 gene edit technologies, researchers have been able to break this gene by making the female Aedes aegypti mosquitoes much less interested in humans.

"Deleting the Ir8a function removes approximately 50% of the activity that the host is looking for," DeGennaro said.

Genetically modified mosquitoes were less likely to be detected and bitten by humans,

For species such as Aedes aegypti, which lives alongside half the world's population – and annually spreading diseases that kill millions of people – this genetic modification has enormous potential benefits for Healthy

"Transmission of diseases such as dengue fever, yellow fever, zia and malaria may be blocked if we stop these mosquitoes from biting us," DeGennaro said. Ial

Although the release of genetically modified mosquitoes into wildlife to combat the spread of the dengue fever is a controversial practice, this latest study does not focus only on the potential for cross-fertilization with wild populations.

Researchers say their work can also offer a deeper understanding of how mosquitoes hunt and feed their human goals and allow them to develop improved repellants from mosquitoes.

"Smells that disguise the way of IR8a can improve the efficiency of current repellents such as DEET or picanidine. Thus, our discovery can help people to disappear as potential hosts for mosquitoes," said DeGennaro.

Similarly, researchers say that they will be able to use the opening for excessive stimulation of the parts of the insect detection system, and also to use the smell to draw them from our people and into traps.

"Love to get into the elevator with a person who has too much cologne," said a biologist from the University Venda

In February this year, the World Health Organization warned that resistance to insecticides could lead to a significant increase in cases of malaria and mortality

The impact of climate change that will make most of the world hospitable to mosquitoes and the diseases they distribute will also disturb

In this context, new and innovative insect control techniques, such as those developed by researchers in Florida, will become increasingly important.


Source link