New imaging technique detects early brain damage from hypertension

first_imgLinkedIn Pinterest Share on Twitter Share on Facebook Sharecenter_img Email A new imaging technique found that some people with high blood pressure also have damage to nerve tracts connecting different parts of the brain, according to a study presented at the American Heart Association’s 2015 High Blood Pressure Conference.The area of brain damage detected is linked to difficulties in certain cognitive skills, decision-making, and the ability to regulate emotions.“We already have clear ways to explore the damage high blood pressure can cause to the kidneys, eyes, and heart. We wanted to find a way to assess brain damage that could predict the development of dementia associated with vascular diseases,” said Daniela Carnevale, Ph.D., the study’s senior author and assistant professor at Sapienza University of Rome, based in Neuromed Institute. While there has been a lot of research on hypertension-related brain changes in the grey matter, Carnevale proposed that a look into the brain’s white matter could tell if high blood pressure was having an effect even earlier than what is known.Researchers used diffusion tensor imaging (DTI), an enhancement of magnetic resonance imaging (MRI), to evaluate and compare the structural and functional properties of the main connections between different brain regions. Fifteen participants were on medication for moderate to severe high blood pressure and 15 participants had normal blood pressure. Participants were also given a cognitive assessment.The brain imaging found that, while none of the participants showed abnormalities on a standard MRI, the more advanced DTI revealed that participants with high blood pressure had damage to:brain fibers that affect non-verbal functions;nerve fibers that affect executive functioning and emotional regulation; andlimbic system fibers, which are involved in attention tasks.In addition, imaging and laboratory tests indicated damage to the heart and kidneys from high blood pressure.Researchers also found those with high blood pressure performed significantly worse on two different assessments of cognitive function and memory. However, there were no differences in tests evaluating verbal function or ability to perform daily activities.“DTI provides a way to evaluate pre-symptomatic brain damage in people with high blood pressure in order to identify possible therapies to help control brain damage and reduce the eventual development of dementia. It is generally accepted that not all available medications have the same impact on different kinds of organ damage,” Carnevale said.DTI, also called tractography, is not performed in routine medical practice, but the researchers suggest that physicians should start to consider potential brain damage as they treat patients with high blood pressure.last_img read more

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South America: Hitting new heights

first_imgSubscribe Get instant access to must-read content today!To access hundreds of features, subscribe today! At a time when the world is forced to go digital more than ever before just to stay connected, discover the in-depth content our subscribers receive every month by subscribing to gasworld.Don’t just stay connected, stay at the forefront – join gasworld and become a subscriber to access all of our must-read content online from just $270.last_img

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CARICOM SG says regional body benefits greatly from Jamaica

first_imgThe Caribbean Community (CARICOM) has greatly benefited from the commitment and dedication of the Government and people of Jamaica, Secretary-General Ambassador Irwin LaRocque said Monday as he extended congratulations on Jamaica’s 56th Anniversary of Independence.“Over the years, your country has contributed significantly to the integration movement and I look forward to continuing this strong track record of dedication to regional integration with you and your administration,” he said in a congratulatory message to Jamaica’s Prime Minister Andrew Holness, who became CARICOM chairman on July 1.Critical time for Holness as chairman Ambassador LaRocque noted that Prime Minister Holness’ assumption of the CARICOM chairmanship came at a critical time, as the regional bloc continues to be confronted by many challenges in its quest to build resilience. “I look forward to working assiduously alongside you and your government to further realize the aspirations of the Caribbean Community,” he said.Jamaica is marking its independence anniversary under the theme, ‘Jamaica 56: One Love, One Family’.“The Community joins with the Government and people of Jamaica in celebrating this landmark and wishes the country continued success in its path to sustainable development,” the Secretary-General said.last_img read more

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Question of image: what price will Djokovic pay after the scandal…

first_img© Reuters At a time when the sport is gradually returning to a rhythm with a changed reality, tennis is going through its own crisis. At its center is surprisingly Novak Djokovic, who with his actions in the last month threatens his good image, built over the years.The organization of demonstration tournaments on the Balkan Peninsula started as an idea to advertise and promote tennis in the region and gave some players the opportunity to prepare in a competitive environment after the isolation, but later “Adria Tour” proved to be a failure in terms of health and safety. of the participants.With nightclub parties, football games and basketball games, the players showed closeness and behaved as if they were immune to the virus, and thousands of spectators gathered on the courts to watch. Meanwhile, Djokovic, who is behind the organization of the Adria Tour, explained that they were doing what the authorities allowed. Positive samples for coronavirus COVID-19 of players and staff members, among whom is Grigor Dimitrov, was a serious blow to the image of the leader in the rankings. The case raised issues related to Djokovic’s management and influence in the world of tennis, as well as the need for tougher measures in the return of the sport.The sinner DjokovicAs expected, the Serb was flooded with wave of criticism. Djokovic’s apologies that the tournaments in Belgrade and Zadar were made with “pure heart and sincere intentions”, cannot change what happened, a the accusations from the tennis player’s father to Dimitrov shift the focus from taking responsibility for the mistake.“I sum it up like a horror movie. A huge irresponsibility and a huge lack of maturity. They were so careless that it’s hard for me to find the words,” said Bruno Soares, a Brazilian doubles player who is part of the Players’ Council.According to many experts, Djokovic has not yet given importance and value to his role as a leader in the sport. The Serb further set his sights against himself after deciding to return from Zadar to Belgrade and only then take his test, putting other people in danger.There is also discord in the Players’ Council, which Djokovic heads. Recently, the Serb decided not to join a video call to the organization, instead playing football with friends. He is also the athlete who raised his voice against the security measures at the US Open. Djokovic described them as too strict and “unprecedented”, announcing that he had not yet decided whether to take part in the Grand Slam tournament.Djokovic has repeatedly stated that he wants to break the Roger Federer Slam title record. To fulfill his desire to become the greatest tennis player, he must arouse respect in fans, as sports and human go hand in hand.Despite his hunger for success, his actions off the court cannot fail to have a lasting impact on the way he is perceived by the general public. In the last few months, however, his public image seems to be one level lower.Return with one mindThe case of Adria Tour raises the question of the possibility of holding tournaments in safe conditions. The tennis tennis season will resume in August, as the organizers of the races in the calendar must learn from the race in Zadar, if they do not want to repeat the mistake, but for now the ambiguity remains.“The situation has made things even more difficult for everyone. But this is an alarm. We will see what happens in the next three weeks. The point is to follow the protocol for players who give a positive coronavirus test during a tournament. This “It’s obviously a question that will come back and be put on the table more and more. It’s difficult. No one really has an answer to what exactly awaits us,” the head of the tennis federation, Stefan Tsvetkov, told Ekip.First of all, the organizers have to think about possible solutions in a scenario with infected employees and competitors. According to ATP President Andrea Gaudenzi, Adria Tour will help players realize the seriousness of the situation.“It’s a bit like telling your kids to wear a helmet when they’re trying to learn to ride a bike. They ride a bike, they fall and then they wear a helmet. Now we all know we can learn a lesson because we’ll be even more “Careful and we may have a little more attention to health protocols,” Gaudenzi said.last_img read more

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