Navigation Links
Success of HIV may depend in its mutations

Researchers observe that one reason AIDS may progress as a disease is the human immunodeficiency virus mutates so rapidly within the human body that it confounds the already-weakened immune system's ability to defend against it. In addition, conventional tests used to determine how well a person// infected with HIV can mount an immune defense can be misleading, the researchers, from Harvard Medical School's Center for Blood Research, have found.

"The immune system needs to evolve along with the virus and this evolution becomes difficult because it is in a milieu of immune deficiency," researcher Premlata Shankar told United Press International. We overstate the immune response because the virus used to test a person's response has many regions to which an immune response has already been developed.

As reported in the November issue of the Journal of Clinical Investigation, although the immune system's memory-based component might continue to resist the strain of HIV it first encountered -- or strains used in laboratory tests -- subsequent viral mutations weaken its ability to mount an effective defense.

Although HIV's ability to mutate rapidly has been well documented, the effects of those mutations on an infected individual have not been studied thoroughly. So Shankar and colleagues examined the immune system's killer cell responses to mutated forms of HIV taken from infected people at different stages of their infection. They found the killer cells from patients with more advanced infections could not destroy the mutated virus, even though they still could neutralize common laboratory strains.

In contrast, killer cells from people with less-advanced HIV infections could destroy both the lab test strains and their own mutated forms. "The side-by-side comparison of cellular responses to laboratory strains and autologous (mutated after infection) strains at different disease stages is new," immunologist Beth Jamieson, w
'"/>




Page: 1 2

Related medicine news :

1. Plastic Sling Has Proved Successful In Improving Aging Of The Neck
2. Does Success in School Differ From the Real World Success ?
3. The Success Rate Of Angioplasty In Female Patients Low
4. Success Of Preventable High-Risk HPV Infections With Vaccines May Vary
5. Successful creation of human embryos from a single parent for the first time
6. Fertility Treatment Offered During Summer Has Better Chances For Success
7. Happiness Plays An Important Role In Success
8. French Doctors Successfully Separate Twins Joined At Spine
9. Alzheimer’s disease trial With EVT 101 For Successfully Complete
10. Switching Off Protein Could Play Key Role In Success Of Radiation Therapy For Cancer
11. Overweight Briton Underwent Successful Surgery In India Being Denied By NHS
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Success HIV may depend its mutations

(Date:7/9/2014)... occurrence of allergic diseases has risen dramatically in Western ... less exposed to microorganisms and have fewer infections than ... , A study by researchers at Sahlgrenska Academy, University ... to examine maturation of the immune system in relation ... rural areas of the Vstra Gtaland Region, half of ...
(Date:7/8/2014)... UCLA Program in Memory Restoration has been awarded up ... Agency (DARPA) for a four -year project aiming to ... team of experts in neurosurgery, engineering, neurobiology, psychology and ... a memory prosthesis in the brain. , Memory is ... the brain encode information, store it and retrieve it. ...
(Date:7/8/2014)... hygiene rates were found to be three times higher ... there were no auditors present, according to a study ... The study, titled, "Quantification of the Hawthorne effect in ... a retrospective cohort study," published today on-line in the ... author Dr. Jocelyn Srigley, who did the study as ...
(Date:7/8/2014)... have increased risks of dying at a young age ... stroke, diabetes, and kidney and liver diseases, according to ... large studies of people from three countries. The study, ... part of the National Institutes of Health, found that ... dramatic reduction in life expectancy compared with people of ...
(Date:7/8/2014)... LOUIS Military physicians will soon pick up joysticks instead ... children with serious health threats. , James Gerard, M.D., a ... $541,807 grant from the Department of Defense Office of ... develop a video game that will train physicians on pediatric ... to use one of the most popular tools gaming ...
Breaking Medicine News(10 mins):Health News:DARPA awards UCLA $15 million to restore lost memory 2Health News:DARPA awards UCLA $15 million to restore lost memory 3Health News:Health-care worker hand hygiene rates increase three-fold when auditors visible 2Health News:Health-care worker hand hygiene rates increase three-fold when auditors visible 3Health News:NCI study finds extreme obesity may shorten life expectancy up to 14 years 2Health News:Save, don't kill: SLU pediatrician to develop educational video game for training military physician 2
... MONDAY, Dec. 19 (HealthDay News) -- When it comes to toys, ... for parents, who find themselves asking two crucial questions. The ... safe for my child? And the second, though not as ... media aimed at spurring a child,s development: Which of these toys ...
... EDITOR,S PICK: Potential concern about drugs in clinical trial ... derived naturally in the body from a major component ... [EETs]) are currently in clinical trials for the treatment ... researchers led by Dipak Panigrahy and Mark Kieran, ...
... COLUMBUS, Ohio -- Drinking enough alcohol to become intoxicated increases ... according to new research. But people without that trait ... when they,re sober. That trait is the ability to ... focus on the here and now, without thinking about the ...
... 19 (HealthDay News) -- Knee pain is common in middle-aged and ... of data collected from nearly 500 women, ages 44 to 57, ... older reported persistent, incident or intermittent knee pain. Forty-four percent ... percent said they had knee pain on most days of the ...
... Known for her poetry, letters, love affair and marriage ... legacy of unanswered questions about her lifelong chronic illness. ... her daughter, may have unraveled the mystery. Born in ... weakness, heart palpitations, intense response to heat and cold, ...
... better quality of life (QOL) and diminished cardiovascular disease ... adenotonsillectomy, according to new research published in the December ... Surgery . SDB is an increasingly common ... apnea syndrome (OSAS). Cardiovascular (CV) disease frequently has been ...
Cached Medicine News:Health News:Discerning Gift-Givers Look for Toys That Offer More Than Fun 2Health News:Discerning Gift-Givers Look for Toys That Offer More Than Fun 3Health News:Discerning Gift-Givers Look for Toys That Offer More Than Fun 4Health News:JCI online early table of contents: Dec. 19, 2011 2Health News:JCI online early table of contents: Dec. 19, 2011 3Health News:JCI online early table of contents: Dec. 19, 2011 4Health News:JCI online early table of contents: Dec. 19, 2011 5Health News:JCI online early table of contents: Dec. 19, 2011 6Health News:JCI online early table of contents: Dec. 19, 2011 7Health News:1 trait has huge impact on whether alcohol makes you aggressive 2Health News:1 trait has huge impact on whether alcohol makes you aggressive 3Health News:Knee Pain Plagues Many Women Over 50 2Health News:Elizabeth Barrett Browning's illness deciphered after 150 years 2Health News:Elizabeth Barrett Browning's illness deciphered after 150 years 3Health News:Effect of adenotonsillectomy in children with sleep-disordered breathing 2
(Date:1/15/2014)... WORTH, Texas , Jan. 15, 2014  Humberto C. ... Dermatology Achievement Award" from the Journal of Drugs ... Aesthetic & Clinical Conference (ODAC). The event is January 17-20, ... Florida . The ODAC ...
(Date:1/15/2014)... , Jan. 15, 2014 MultiCell Technologies, Inc. ... a U.S. provisional patent application concerning composition of matter, ... achieve targeted tumor cell death.  This ... noncoding double stranded RNA molecules (VSRNAs) which interfere with ...
(Date:1/15/2014)... 15, 2014 Reportlinker.com announces that a ... its catalogue: PharmaPoint: ... Market Analysis to 2022 ... - India Drug Forecast and Market Analysis ...
Breaking Medicine Technology:Galderma's global leader honored with a "Lifetime in Dermatology Achievement Award" by Journal of Drugs in Dermatology 2Galderma's global leader honored with a "Lifetime in Dermatology Achievement Award" by Journal of Drugs in Dermatology 3Galderma's global leader honored with a "Lifetime in Dermatology Achievement Award" by Journal of Drugs in Dermatology 4MultiCell Technologies Files Patent Application Covering New Class of RNA Therapeutics 2MultiCell Technologies Files Patent Application Covering New Class of RNA Therapeutics 3PharmaPoint: Atopic Dermatitis - India Drug Forecast and Market Analysis to 2022 2PharmaPoint: Atopic Dermatitis - India Drug Forecast and Market Analysis to 2022 3PharmaPoint: Atopic Dermatitis - India Drug Forecast and Market Analysis to 2022 4PharmaPoint: Atopic Dermatitis - India Drug Forecast and Market Analysis to 2022 5
... Cayenne Medical, Inc., a private sports medicine device ... System, its second generation device for treatment of traumatic ... the 2011 American Orthopaedic Society for Sports Medicine Annual ... Tal David, MD, orthopedic sports medicine specialist, San ...
... June 29, 2011 Suneva Medical, a privately-held ... of its core aesthetics injectable business with approval ... its long lasting dermal filler for nasolabial folds ... patients a unique, long-lasting treatment, Bellafill provides physicians ...
Cached Medicine Technology:Cayenne Medical, Inc. Launches CrossFix® II Meniscal Repair System 2Suneva Medical Announces Canadian Approval of Bellafill™ 2
... reference laboratory and a worldwide leader in ... an extensive test menu of highly complex ... anatomic pathology. Owned by the University of ... half of the nation's university teaching hospitals ...
... reference laboratory and a worldwide leader in ... an extensive test menu of highly complex ... anatomic pathology. Owned by the University of ... half of the nation's university teaching hospitals ...
... national reference laboratory and a worldwide leader ... offers an extensive test menu of highly ... and anatomic pathology. Owned by the University ... than half of the nation's university teaching ...
... national reference laboratory and a worldwide leader ... offers an extensive test menu of highly ... and anatomic pathology. Owned by the University ... than half of the nation's university teaching ...
Medicine Products: