Showing posts with label Researcher. Show all posts

Google Doodle marks geologist Nicolas Steno's 374th birthday


Internet search giant Google posted the year's first Doodle by marking the 374th birth anniversary of the world famous Danish geologist, Nicolas Steno, known as the father of Geology. Steno is also known for his valuable contribution in the field of anatomy.

Today's Doodle, which spells out the name of the search engine, appears in the form of earth strata with fossils in various bottom layers and a green crust. On clicking the Doodle, users land on the search results page for Nicolas Steno.

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PEOPLE WITH HIV SUFFER MEMORY LOSS


Researchers at Albert Einstein College of Medicine of Yeshiva University have solved a longstanding medical mystery – why so many people with HIV experience memory loss and other cognitive problems despite potent antiretroviral therapy.

Even though antiretroviral treatment suppresses HIV replication and slows the progress of HIV disease, between 40 and 60 percent of HIV-infected people eventually develop mild-to-moderate neurological deficits, and up to 5 percent develop full-blown dementia. Until now, researchers have not been able to explain why these complications, collectively known as neuroAIDS, occur.

In a previous study, the Einstein researchers found that HIV infects about 5 percent of brain cells known as astrocytes. These cells bolster the blood-brain barrier, a network of blood vessels that prevents harmful substances from crossing into the brain from the bloodstream. Now, they have shown that even this low-level of astrocyte infection can profoundly damage the blood-brain barrier.

“The relatively few infected astrocytes emit toxic signals through specialized channels that kill neighboring uninfected astrocytes, ultimately weakening the blood-brain barrier and allowing harmful compounds to enter the brain,” said senior author Joan Berman, Ph.D., professor of pathology and of microbiology and immunology at Einstein.

The evidence came from a laboratory model of the blood-brain barrier constructed of human cells and from examining brain tissue of macaque monkeys infected with the simian form of HIV. The results suggest that drugs capable of reducing the damaging signaling cascades triggered by HIV-infected astrocytes might help in preventing or treating neuroAIDS. Their findings were published in the June 29 issue of The Journal of Neuroscience.

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YOGA, MEDICATION HELPS IMPROVE ASTHMA SYMPTOMS


 A new study has suggested that meditation and yoga can be ‘helpful’ in improving asthma in urban adolescents.

A new study by researchers at the University of Cincinnati (UC) shows that urban adolescents with asthma may experience worse outcomes when not using spiritual coping and often use complementary and alternative medicine, or integrative medicine, like prayer or relaxation, to manage symptoms.

These findings by researchers could help physicians and other providers gain insight into additional ways to help pediatric populations self-manage chronic illnesses. The study, led by Sian Cotton, assistant professor in the department of family and community medicine, looked at urban adolescents dealing with asthma and uncovered the ways that they were both coping with their illness as well as ways coping methods affected their mental and physical health outcomes.

In the spiritual struggles analyses, outcome variables included anxiety and depressive symptoms as well as quality of life. Researchers then determined the association between spiritual struggles and health outcomes after accounting for age, gender, ethnicity and asthma severity. "As hypothesized, religious or spiritual coping and secular coping predicted similar amounts of variance in these outcomes, similar to previous findings in adult populations, suggesting that spiritual coping is an important element to consider when caring for adolescents with asthma," said Cotton.

In the second analysis, the same group of adolescents completed a survey looking at 10 forms of complementary and alternative medicine methods used for symptom management, including prayer, guided imagery, relaxation, meditation, yoga, massage, herbs, vitamins and rubs as well as dietary changes. "These findings show that this group of chronically ill adolescents is using complementary methods and finding them helpful," said Cotton.

"Providers should consider discussing the use of complementary or alternative medicine with their patients with asthma to help improve outcomes. "These analyses point to findings that will help physicians care not only for patients with asthma but also for those with other chronic illnesses to ensure the best outcomes physically, mentally, emotionally and spiritually, producing a better quality of life,” added Cotton. The findings were presented at the National Conference in Pediatric Psychology in San Antonio.

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