Navigation Links
Theory of How HIV Attacks is Wrong: Study

A popular theory on how HIV attacks the body's immune system is wrong, a new study has found.

Scientists have long believed that HIV causes the slow depletion of healthy white blood cells -- the T cells which recognize infections so the body can fight them off -- by causing infected T cells to produce virus particles before dying.

This ongoing cycle of infection, HIV production, reinfection and cell destruction has been called the "runaway" hypothesis.

But if this were so, the T cells would be killed off far too quickly, the researchers found.

Using a simple mathematical model, researchers in the United States and Britain showed the "runaway" model would deplete the body's healthy T cells in a matter of months, instead of the years it actually takes.

The results show that a "slow process must be active" in the depletion of the T cells, the authors wrote in the current issue of the journal PLoS Medicine.

Identifying this process "will provide a key insight into the nature of HIV disease and indicate potential new approaches to therapy," they concluded.

A potential explanation for the slow process could be that the virus slowly adapts over the course of the infection, the authors said.

"The virus is constantly mutating and there may be selection - in a Darwinian sense -- over time for 'fitter' mutants of the virus in an infected person," said lead author Andrew Yates of Emory University in Atlanta, Georgia.

"There are several ways the virus could become fitter - for example by being able to infect new cells more readily, or by infected cells producing more new virus, or producing it more rapidly," he said in an e-mail interview.

"The virus adaptation hypothesis requires a lot more experimental investigation, however, and is only a tentative conclusion."


'"/>




Page: 1

Related medicine news :

1. New Information On Virus Goes Against The Age-Old Theory
2. Controversial Theory Says DNA Can Be Pushed To "Dark States"
3. Study Refutes Theory on HIVs Effect on White Blood Cells
4. Maths Theory Shows Genetic Pattern of Tumour Growth
5. Heart Attacks during Menstruation!
6. Supply of Radiopharmaceuticals Hampered by Attacks
7. Air Pollution and Heart Attacks
8. Kidney Patients Risk Heart Attacks
9. Kidney Patients Risk Heart Attacks
10. New Medication May Decrease The Frequency Of Angina Attacks
11. Obese Kids Also Prone To Heart Attacks
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:12/9/2016)... ... 2016 , ... The Pennsylvania Athletic Trainers’ Society (PATS) aired ... of 2016. The program was made possible by a Pennsylvania Department of Health ... and Human Services Administration. The broadcast, Use Your Head: Properly Managing Sport ...
(Date:12/8/2016)... Islandia, NY (PRWEB) , ... December 08, 2016 ... ... company, is pleased to announce that “Natural Language Processing–Enabled and Conventional Data Capture ... published in JMIR Medical Informatics . , Results of the comparative usability ...
(Date:12/8/2016)... ... ... David J. Dykeman , Ginger Pigott , and J. Rick ... West, Dec. 12, 2016, at the Fairmont Newport Beach in California. Greenberg Traurig is ... Sciences & Medical Technology Group have been featured speakers at every DeviceTalks conference since ...
(Date:12/8/2016)... , ... December 08, 2016 , ... ... Center has been recognized for adherence to the highest standards of trauma, ... accreditation organizations, announced the center's president and CEO, Dr. Daniel Messina. , Among ...
(Date:12/8/2016)... ... 2016 , ... Vida Health, the digital health platform that pairs ... Canvas Ventures . Other investors include Nokia Growth Partners (NGP) and returning investor Aspect ... consumers who are managing chronic conditions or simply want to improve their ...
Breaking Medicine News(10 mins):
(Date:12/8/2016)... , Dec. 8, 2016 Australia Glaucoma ... GlobalData,s new report, "Australia Glaucoma Surgery Devices ... on the Australia Glaucoma Surgery Devices market. The ... volume (in units) and average prices (USD) within ... report also provides company shares and distribution shares ...
(Date:12/8/2016)... , Dec. 8, 2016 KEY FINDINGS ... poised to grow in 2017-2023. Various reasons for growth ... obese population, higher incidences of chronic diseases, high recovery ... mobility aid services. Medical lifting sling refers to ... with limited mobility. These slings connect to the lift ...
(Date:12/8/2016)... INDIANAPOLIS , Dec. 8, 2016  Eli Lilly ... detailed results of its phase 3 EXPEDITION3 trial at ... (CTAD) meeting. As previously disclosed, solanezumab did not meet ... study of solanezumab initiated in people with mild dementia ... pursue regulatory submissions for solanezumab for the treatment of ...
Breaking Medicine Technology: