ADMIN
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Existing Prescription Drug Has Potential to Fight HIV
8 years ago
HIV-positive individuals can lead long, happy lives. They are, however, dependent on the prescription drugs that keep the infection at bay. This dependency is a lifelong one. Current therapies aid the immune system to contain the virus. If left alone, the immune system would soon be overwhelmed by the virus – thus the constant need for assistance. This was the fact that researchers focused on when examining the reaction of the immune system towards the virus when this prescription drug was applied. The results have many hopeful that in the near future, lifelong therapies will not be necessary to fight off or protect against infection.
What Prescription Drug?
The enzyme adenosine deaminase is the prescription drug getting the attention here. It already exists in the pharmaceutical world, and scientists are looking to repurpose it to target HIV. What the studies proved was that exposure to this enzyme empowered the immune system in a couple of different ways.
First, immune response was increased. Important CD4 and T cells hurried to the call and took care of the invading virus. The next observation was also impressive, as it showed an increase in memory for the T cells. Next time they encounter HIV, the cells will remember and be able to eliminate it from the host. This is crucial information for researchers investigating how to reduce treatment length. If the immune system can respond efficiently on its own, and then recall that response when threatened again, lifelong therapies may be done away with.
Should adenosine deaminase be able to boost the immune system to the point researchers have seen, it could mean better control of HIV infection. This control could also rely mostly on the immune system, with little fear of a reoccurring infection. Long-term management of the disease could see less dependency on antiretroviral therapies. It is hoped that further study and advocating for the prescription drug is expedited to help out in this regard.
Until the time comes when such medications are ready for use, though, it is vital for those with HIV to stick to their daily treatment routine in order to halt disease progression.
HIV and Stroke Are Linked – Long-Term Treatment Reduces Risk
8 years ago
HIV has long been connected with certain secondary conditions and complications. With treatment, some can be managed, and risks can be reduced. One surprising study has revealed a strong link between HIV and stroke. It had been noticed that the number of young individuals presenting with a stroke were HIV-positive. New studies have found definite ties between the two conditions.
The trend has been noted especially across much of the southern portion of Africa.
- Young adults reporting stroke had no history to suggest risk.
- For example, few had a history of high blood pressure, were obese, smoked, or had diabetes.
- Researchers found that in one study, almost half of the participants who had strokes were HIV positive.
- These individuals were all under 45 years old.
- Consistent with what was being seen, these patients also had no previous history that would suggest a high risk of stroke.
Another interesting piece of information that had been uncovered during the ongoing study was that those who had just started therapy for HIV had the highest risk of stroke. The risk declined after six months of treatment. Those who had been on the antiretroviral therapies for a while had a much lower risk of stroke. Medical personnel are eager to learn what the specific link is between the virus and stroke. Particularly alarming is the high risk during the first stages of the therapy.
What Does the HIV and Stroke Link Mean Globally?
While these findings were uncovered on the African continent, the link between HIV and stroke is definite. The findings here will have tremendous effects globally when it comes to HIV and its treatment.
There is clear evidence that continued treatment not only maintains health and controls the HIV infection, but also greatly reduces stroke risk. Bridging the gap between the starting point and less risk is now the main focus. Continued investigation is necessary at this juncture to find answers, and then come up with ways to protect patients until they are out of the high-risk category.
HIV Prevention in Adolescents Faces Legal Barriers
8 years ago
Laws vary from state to state regarding parental consent when it comes to medical treatment for adolescents. This in itself is not a bad thing as parents have defined rights when it comes to their children’s health. However, when it comes to HIV prevention and research, these laws could pose a public health issue. For some regions, lines are blurred between what constitutes treatment or therapy, and prevention (particularly for HIV and other STDs), and what types of rights adolescents have when it comes to these matters.
Studies are conclusive when it comes to the number of young adults contracting HIV. The facts are:
- The second largest at-risk population are individuals aged 13 to 24.
- Of the new infections reported in the United States, researchers found 23% are in this age group.
- Out of that number, over 70% are young gay and bisexual men.
- This high-risk group would greatly benefit from certain preventative measures, such as safer sex practices, and using antiretroviral therapies for those who are not HIV-positive.
This latter method has been shown to greatly reduce the risk of contracting the virus. Not only would these measures aid young persons who are at the highest risk of transmitting and contracting the virus, but it could also help stem the growing tide of HIV outbreaks.
What Can Aid Prevention in Adolescents?
The ethical side is clear, and poses no threat. The legalities are what stand in the way. Each state has different laws governing parental consent. Most of these hinge on treatment, not necessarily prevention. It would essentially clear the roadblock if lawmakers and health officials collaborated, amending certain laws to allow for prevention of HIV and other sexually transmitted infections in minors without parental consent.
Another approach is to create clear legal boundaries between treatment and prevention. This could help in areas where laws are not clear-cut, yet tie the hands of healthcare workers as far as aiding the younger population in preventative care. Lastly, having a consistent law code in this regard would also help assure that this particular type of care could be given and received anywhere within the US.
HIV Runs Rampant in Violent Hot Spots
8 years ago
Change in economic and social climates has long been known to affect health trends. Times of war and periods of peace yield different results when it comes to public health. The spread if HIV is no different. Many studies have been conducted over long periods of time to try and track just how some of these factors change the spread of the infection. While the concept is simple enough, trying to gather data in times of violent conflict is difficult. For this and other reasons, the research that has been done up to this point has proven inconclusive. In some instances, the research has been contradictory.
As Tensions Rise, So Do Infection Rates
Efforts to help clear up some of the mystery behind the numbers have met with some success. One recently concluded study was able to track the number of HIV infections in times leading up to violent conflicts. Interestingly, the results pointed to higher rates of infection starting about five years before a conflict broke out. Increase in HIV infections was drastic enough to make a clear dividing line between the period before economic and/or social strife began to escalate—and general peace.
The institutions that gathered the information hope to use these conclusions as a springboard to better understand how external environments contribute to the spreading of the virus. It is their goal to be able to reduce HIV transmission before social conditions worsen in an area.
Conflicting Data During Violent Wartime
Just how violent conflict itself changes the rate of infection is still a bit of a mystery. During turbulent times involving bloodshed, the number of new infections seems to decline. Those in the medical community in these areas have their doubts. As mentioned, gathering information in such situations is difficult, and many researchers believe that the numbers may be significantly higher than what is recorded. Once the violence in an area dissipates, the number of newly reported infections begins to increase once again.
The period of time with the highest vulnerability to public health is definitely in the years before violence breaks out. Further insight into how social change and violence affect behaviors may hold answers into how spreading HIV can be curbed during such times.
How HIV Affects the Mind as a Person Ages
8 years ago
Year after year, advancements made in the treatment of HIV are helping many to lead longer and healthier lives. As individuals enter their later years, it is important to know what to expect when living with HIV, and how it affects the mind.
Current Standards for Testing
For example, at least one-third of HIV-positive patients will develop what is termed HIV-associated neurocognitive disorder. The medical community knows of this disorder, and very often tests older adults who are HIV-positive. New information on the cognitive functions of those living with an HIV infection may change how physicians test for the disorder.
Normally, doctors will administer a standard neuropsychology exam. If a patient scores well on this test, he is usually deemed cognitively normal. This standard test seemed to be doing the job—until the matter was further investigated. Researchers examined a group of patients who had passed this test, but then subjected them to different types of testing. The surprising results exposed the need for further probing when looking to diagnose HIV-associate neurocognitive disorder.
What the Research Revealed
Older, HIV-positive adults were asked to perform certain mental tasks on cue. At times, the tasks were changed from one to another. This is where physicians began to notice a lag between healthy participants and those with HIV. This response to switching tasks was significantly slower in the HIV group.
To delve a bit deeper, brain scans were ordered. The scans revealed that the dorsal anterior cingulate cortex was reacting differently in the control group than the HIV-positive one. This area of the human brain is linked to both executive and apathetic deficits. These cognitive impairments may come in under the radar with standard testing.
The Latest Developments on How HIV Affects the Mind
At this time, we have no way to treat the disorder. Efficient testing, however, is still vital to patients, as well as their families and caregivers. Understanding that some functions might come a little slower to HIV-positive individuals during their later years is important for those who interact with them daily. Effective testing and education are the keys to finding out how HIV affects the mind.
These studies are recent. More study and research are underway.
