Fri, Feb 24, 2017 | updated 07:10 AM IST

Blood test may help fight HIV transmission during sex

Updated: Aug 25, 2016 17:01 IST

Washington D.C., Aug. 25 (ANI): A group of researchers have developed a technique that estimates an HIV-negative patient's adherence to drugs prescribed to prevent HIV transmission during sex.

The test measures traces of antiretroviral drugs in a spot of dried blood to determine how much pre-exposure prophylactic medicine a patient has used.

Truvada, the only FDA-approved antiretroviral PrEP drug for HIV prevention, is proven more than 90 percent effective in stopping HIV transmission during sex in those using it consistently.

The assay technique provides an objective way to tell if the patients are using PrEP consistently.

Professor Pete Anderson pointed, "There's a need to objectively measure PrEP adherence because traditional ways have not been very effective. This assay takes advantage of the long half-life of PrEP medication in red blood cells. This means the drug builds up in these cells only if the patient takes it consistently."

The method is to spot a sample of a patient's blood on an absorbent paper like card and send it to a lab, which isolates and measures concentrations of PrEP drugs found in dried red blood cells.

The presence of these drugs' are measured to estimate how many doses a patient has taken over the last month or two.

Clinicians then have an objective measurement that shows if a patient is using PrEP effectively.

Studies also show that people using the PreP method are most successful when medication is used consistently.

Lane Bushman, the lab manager who developed the assay, said, "Most cell sample collections require significant effort for processing, but the dried blood spot is an easy sample collection technique. This helps with implementing the test in most settings."

Anderson said, "This assay has been in high demand for PrEP studies. We recently helped a South African lab to develop the method to help with testing demand in that region."

The assay is now being used in research internationally and the approach could have application for other drugs that require accurate measurement of patient adherence to dosing.

The research has been funded by National Institutes of Health. (ANI)

Too much sugar may causes Alzheimer's

Updated: Feb 24, 2017 06:13 IST

London [UK], Feb. 24 (ANI): A diet, high in sugar, could lead to Alzheimers, as a study finds a link between sugar and the brain disease.

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New Delhi [India], Feb. 23 (ANI): A study was conducted in 19 centers over a period of six months to understand the different types of constipation and the causes behind them. One of the key highlights has been that constipation is highly prevalent in cities as compared to the rural areas.

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New Delhi [India], Feb 23. (ANI): Never neglect your kid, if you do not want to subject him to mental health issues!

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Now, you can cure insomnia with placebo: Study

Updated: Feb 23, 2017 06:27 IST

Washington D.C. [USA], Feb. 23 (ANI): Briton researchers have found a simple placebo may really work well to cure insomnia.

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Washington D.C. [USA], Feb. 23 (ANI): Beware! US researchers warned that taking drugs to reduce gastric acid for prolonged periods may lead to serious kidney problems, including kidney failure.

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New Delhi [India], Feb. 22 (ANI): In rarest of its kind, a paediatric surgery performed by doctors at a city-based hospital gave a new lease of life to a newborn, suffering from a life-threatening defect of the alimentary canal.

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Beware! Zika can be a reason for miscarriage

Updated: Feb 22, 2017 14:18 IST

Washington D.C. (USA), Feb. 22 (ANI): Beware to-be mothers! According to a recent study, Zika virus could lead to a greater risk of miscarriage in the early stage of pregnancy.

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Washington D.C. (USA), Feb. 22 (ANI): Women with a rare type of epithelial ovarian or peritoneum cancer, can now take sigh of relief.

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Washington D.C. [USA], Feb. 22 (ANI): Now don't blame those chips and chocolates for you childs extra pounds, as a study says around 35-40 percent of a child's is inherited from their parents.

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Drinking too much may age arteries over time!

Updated: Feb 22, 2017 06:03 IST

Washington D.C. [USA], Feb. 22 (ANI): Excessive boozing over the years might age arteries prematurely, especially in men, putting them at an increased risk for heart disease.

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Chronic knee pain may be treated online

Updated: Feb 21, 2017 06:41 IST

Washington D.C. [USA], Feb. 21 (ANI): A study has found out that an online intervention, combining home exercise and pain-coping skills training, provided substantial clinical benefits for patients suffering from chronic knee pain.

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Washington D.C. [USA], Feb. 21 (ANI): Only exercise is not enough to maintain that figure, which is an after effect of much toil and sweat!

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New Delhi [India], Feb. 20 (ANI): With rising life expectancy, increasingly sedentary lifestyles and surge in incidence of obesity, India is also witnessing a resultant rise in orthopedic problems as a natural corollary.

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Children inherit obesity from parents: Study

Updated: Feb 20, 2017 14:54 IST

Washington D.C. (USA), Feb. 20 (ANI): A study reveals that 35-40 percent of a child's 'Body Mass Index' - how fat or thin they are - is inherited from their parents.

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New Delhi [India], Feb 20. (ANI): Good news for all those lazy-headed not-really-a-cleanliness-freak out there! Scientists have found out that the obsession with hygiene could even be turning some beneficial bacteria found in the human gut into "endangered species".

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New Delhi [India], Feb 20. (ANI): In order to persuade someone to quit smoking, it is the 'emotions' that need to be triggered rather than inciting fear in an individual.

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No difference between good or bad diet: Study

Updated: Feb 20, 2017 05:54 IST

New Delhi [India], Feb 20. (ANI): Ever faced a choice between Brown and white bread?

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Washington D.C. [USA], Feb. 19 (ANI): To boost sustainability of livestock production, a study finds that gene editing - one of the newest and most promising tools of biotechnology - enables animal breeders to make beneficial genetic changes, without bringing along unwanted genetic changes.

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People with ADHD may have smaller brain volume

Updated: Feb 19, 2017 07:09 IST

New Delhi [India], Feb 19. (ANI): In a latest study it has been found out that people diagnosed with attention deficit hyperactivity disorder (ADHD) have smaller brain volume than those without the disorder.

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New Delhi [India], Feb 19. (ANI): What if we tell you that scientists can actually slow down the process of ageing. Sounds too good to be true right?

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