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                Roche develops new serology test to detect COVID-19 antibodies

                Roche develops new serology test to detect COVID-19 antibodies

                Novartis announces data in Neurology reinforcing the real-world and long-term effectiveness and safety of Aimovig® as a preventive treatment across the full spectrum of migraine

                Novartis announces data in Neurology reinforcing the real-world and long-term effectiveness and safety of Aimovig® as a preventive treatment across the full spectrum of migraine

                EMA review of Picato concludes medicine’s risks outweigh its benefits

                EMA review of Picato concludes medicine’s risks outweigh its benefits

                Dance With Your Grandma (after COVID-19 of course)

                Dance With Your Grandma (after COVID-19 of course)

                Covid-19 mortality highly influenced by age demographics

                Covid-19 mortality highly influenced by age demographics

                Alarming Abusive Head Trauma Revealed in Computational Simulation Impact Study

                Increased Rate of Infections May Indicate a Future Cancer Diagnosis

                Remdesivir improved majority of patients hospitalized with severe COVID-19

                Remdesivir improved majority of patients hospitalized with severe COVID-19

                Blood Test May Help Doctors Catch Pancreatic Cancer Early

                Blood Test May Help Doctors Catch Pancreatic Cancer Early

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                  Volcanic CO2 emissions helped trigger Triassic climate change

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                          With a heavy heart: how men and women develop heart disease differently

                          by Insciences
                          April 16, 2020
                          in Materials Science
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                          With a heavy heart: how men and women develop heart disease differently
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                          Study uncovers that different minerals block heart valves in men versus women

                          A new study by researchers from McGill University has uncovered that minerals causing aortic heart valve blockage in men and women are different, a discovery that could change how heart disease is diagnosed and treated.

                          Using the Canadian Light Source (CLS) at the University of Saskatchewan, Marta Cerruti, an Associate Professor in McGill’s Department of Materials Engineering, and her team analyzed damaged heart valves from patients who had undergone transplants.

                          Their findings, recently published in Acta Biomaterialia, show considerable differences in the mineral deposits found in aortic valves of men and women who suffer from stenosis, a life-threatening heart condition caused by a narrowing of the aortic valve opening.

                          “What we showed, which was a surprise to us, is that the type of minerals in the heart valves is different between the sexes,” said Cerruti. “We unexpectedly found that the minerals are different in composition and shape, and that they grow slower in women.”

                          Mineral composition analysis performed at the Soft X-Ray Mischaracterization Beamline, which is housed within the CLS, also determined that a type of mineral deposit was found almost exclusively in samples from female patients.

                          Taking diversity into consideration

                          Cerruti says that her findings demonstrate the importance of thinking about diversity in the context of research, a concept that has historically been a blind spot for the scientific community. For example, using only male mice in experiments used to be a standard practice.

                          “Our study is the perfect illustration that by only looking at a specific population, you will skew your data,” she says. “Having a more diverse data set improves your science.”

                          Heart disease remains the global leading cause of death in both men and women. With 280,000 heart valves being replaced every year in Canada due to stenosis, Cerruti says her work demonstrates the need to develop different diagnostic and therapeutic approaches when treating aortic stenosis in men or women.

                          In order to make that happen, Cerruti’s group will return to the CLS to further investigate this cardiovascular phenomenon and understand the precise composition of the mineral deposits they found in women.

                          “Understanding what the minerals are could definitely help to develop a cure,” she says. “It’s possible that there could be easier ways to target these minerals and dissolve them for women.”

                          About this study
                          “Differences in mineral composition and morphology between men and women in aortic valve calcification” by Marta Cerruti and al. was published in Acta Biomaterialia.

                          This study was funded by Canada Research Chair Foundation, the Heart and Stroke Foundation and Natural Sciences and Engineering Research Council.

                          About McGill University
                          Founded in Montreal, Quebec, in 1821, McGill University is Canada’s top ranked medical doctoral university. McGill is consistently ranked as one of the top universities, both nationally and internationally. It is a world-renowned institution of higher learning with research activities spanning two campuses, 11 faculties, 13 professional schools, 300 programs of study and over 40,000 students, including more than 10,200 graduate students. McGill attracts students from over 150 countries around the world, its 12,800 international students making up 31% per cent of the student body. Over half of McGill students claim a first language other than English, including approximately 19% of our students who say French is their mother tongue.

                          Source: McGill University

                          Tags: aortic valveaortic valve calcificationHeartHeart diseaseMaterialsMenstenosiswomen
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