Stroke: Experimental Antiplatelet Antibody Only Attacks Clots, Without Increasing Bleeding Risk

MedicalResearch.com Interview with:

MedicalResearch.com Interview with:Martine Jandrot-Perrus MD, PhD.Emeritus Research ProfessorInserm University Paris DiderotActicor BiotechHôpital BichatFrance

Dr. Jandrot-Perrus


Martine Jandrot-Perrus MD, PhD.
Emeritus Research Professor
Inserm University Paris Diderot
Acticor Biotech
Hôpital Bichat
France 

MedicalResearch.com: What is the background for this study? What are the main findings?

Response: Blood platelets are key actors in thrombosis a leading cause of global mortality estimated to account for 1 in 4 death worldwide in 2010.

Thrombosis is associated with cardiovascular diseases (myocardial infarction, stroke, lower limb ischemia, venous thromboembolism), and with numerous pathologies such as cancer, infections or inflammatory diseases. Currently available antiplatelet drugs are the cornerstone of therapy for patients with acute coronary syndromes. However, these drugs all carry an inherent risk of bleeding that restricts their use in sensitive populations and when arterial thrombosis occurs in the cerebral territory. At present the only acute treatment option available for ischemic stroke consists in revascularization by thrombolysis, and/or mechanical thrombectomy. But the number of patients eligible to these treatments is low (» 15% of all patients) and the success rate does not exceed 50%. The responsibility of platelets in the failure for thrombolysis / thrombectomy to restore vascular patency is strongly suspected.

There is thus a clear medical need for new antiplatelet drugs with an improved safety profile. We set out to develop ACT017, a novel, first in class, therapeutic antibody to platelet glycoprotein VI with potent and selective antiplatelet effects. The interest of GPVI resides in the fact that it’s a receptor involved in the development of occlusive thrombi but that it is not strictly required for physiological hemostasis.
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Hepatitis C: Study finds Direct Acting Antivirals Reduce Mortality and Liver Cancer

MedicalResearch.com Interview with:

Prof-Fabrice Carrat

Prof. Carrat,

Prof. Fabrice Carrat, MD, PhD
Institut Pierre Louis d’Épidémiologie et de Santé Publique,
Paris, France

MedicalResearch.com: What is the background for this study?  

Response: Most studies on direct acting antivirals were focused on sustained vriological response (SVR) rates, but few studies addressed the issue of clinical outcomes.

 

MedicalResearch.com: What are the main findings?

Response: Treatment of hepatitis C with direct acting antivirals (DAA) is associated with reduced risk of mortality and liver cancer. 

MedicalResearch.com: What should readers take away from your report?

Response: This suggests that direct acting antivirals should be considered for all patients with chronic hepatitis C infection.

MedicalResearch.com: What recommendations do you have for future research as a result of this work?

Response: Follow-up of cohort participants will continue to assess the long term impact of DAA on clinical outcomes, namely: decompensated cirrhosis (in patients with cirrhosis); residual risk of hepatocellular carcinoma, regression of  liver fibrosis and morbidity not related to the liver (particulary cardiovascular events). 

Disclosures: The study was sponsored by ANRS_INSERM  

Citation:

Fabrice Carrat, Hélène Fontaine, Céline Dorival, Mélanie Simony, Alpha Diallo, Christophe Hezode, Victor De Ledinghen, Dominique Larrey, Georges Haour, Jean-Pierre Bronowicki, Fabien Zoulim, Tarik Asselah, Patrick Marcellin, Dominique Thabut, Vincent Leroy, Albert Tran, François Habersetzer, Didier Samuel, Dominique Guyader, Olivier Chazouilleres, Philippe Mathurin, Sophie Metivier, Laurent Alric, Ghassan Riachi, Jérôme Gournay, Armand Abergel, Paul Cales, Nathalie Ganne, Véronique Loustaud-Ratti, Louis D’Alteroche, Xavier Causse, Claire Geist, Anne Minello, Isabelle Rosa, Moana Gelu-Simeon, Isabelle Portal, François Raffi, Marc Bourliere, Stanislas Pol. Clinical outcomes in patients with chronic hepatitis C after direct-acting antiviral treatment: a prospective cohort study. The Lancet, 2019; DOI: 10.1016/S0140-6736(18)32111-1

 

 

 

 

Feb 14, 2019 @ 1:02 pm

 

 

 

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Link Between Number of Migraines and Diabetes Risk

MedicalResearch.com Interview with:

Guy Fagherazzi, MSc, PhD, HDR Senior Research Scientist in Digital & Diabetes Epidemiology Center of Research in Epidemiology and Population Health  Inserm, Paris-South Paris-Saclay University

Dr. Guy Fagherazzi

Guy Fagherazzi, MSc, PhD, HDR
Senior Research Scientist in Digital & Diabetes Epidemiology
Center of Research in Epidemiology and Population Health
Inserm, Paris-South Paris-Saclay University

MedicalResearch.com: What is the background for this study? What are the main findings?

Response:  Migraine has further been associated with increased risk of overall and specific cardiovascular disease events.

Because migraine has also been associated with factors related with insulin resistance and type 2 diabetes, an association between migraine and diabetes has been hypothesized.

We observed a lower risk of type 2 diabetes in women with active migraine.

We also show a linear decrease of migraine prevalence long before and a plateau long after type 2 diabetes diagnosis. 

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Few Than 10% in Large Study Have Optimal Cardiovascular Health

MedicalResearch.com Interview with:

Dr. JeanPhilippe Empana, MD, PhD Research Director, INSERM U970 Paris Cardiovascular Research Center (PARCC) Team 4 Cardiovascular Epidemiology & Sudden Death Paris Descartes University

Dr. Empana

Dr. Jean Philippe Empana, MD, PhD
Research Director, INSERM U970
Paris Cardiovascular Research Center (PARCC) Team 4 Cardiovascular Epidemiology & Sudden Death Paris Descartes University

MedicalResearch.com: What is the background for this study? 

Response: In 2010, the American Heart Association (AHA) has emphasized the primary importance of the Primordial prevention concept, i.e. preventing the development of risk factors before they emerge, as a complementary prevention strategy for cardiovascular disease (CVD).

Accordingly, the AHA has developed a simple 7-item tool, including 4 behavioral (nonsmoking, and ideal levels of body weight, physical activity and diet) and 3 biological metrics (ideal levels of untreated blood pressure, fasting blood glucose and total cholesterol) for promoting an optimal cardiovascular health (CVH). The relevance of the concept and of the tool has been several times reported by individual studies and meta-analyses (combining the results of several studies) showing substantial and graded benefit for cardiovascular disease but also mortality, quality of life and even cancer risk with higher level of CVH. However, most studies relied on one measure of  cardiovascular health.

In the present work, using serial examinations from the well-known Whitehall Study II, we described change in CVH over time and then quantified the association of change in cardiovascular health over 10 years with subsequent incident cardiovascular disease and mortality. This analysis is based on 9256 UK men and women aged 30 to 55 in 1985-88, and thereafter examined every 5 years on average during 30 years.

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Cardiovascular Risk Factors Also Linked to Dementia

MedicalResearch.com Interview with:

Cécilia Samieri, PhD Université de Bordeaux, INSERM Bordeaux Population Health Research Center Bordeaux, France

Dr. Samieri

Cécilia Samieri, PhD
Université de Bordeaux, INSERM
Bordeaux Population Health Research Center
Bordeaux, France

MedicalResearch.com: What is the background for this study? What are the main findings?

Response: Previous research has demonstrated that heart diseases and brain diseases share common risk factors. Favorable health factors (optimal levels of BMI, blood pressure, blood glucose and cholesterol) and behaviors (non smoking, physical activity and diet at optimal levels), which are known to protect the heart, have also been associated with a lower risk of age-related brain diseases (eg, dementia) and lower rate of cognitive decline in some epidemiological studies. However, studies have been controversial and importantly, very limited research has considered risk factors simultaneously. This may be an explanation for the lack of established consensus for recommendations aimed at dementia prevention.

This study adds to previous knowledge by evaluating cardiovascular health factors and behaviors simultaneously in relation to cognitive decline and the risk of dementia in older age. We used the American Heart Association 7-item tool to promote primordial prevention, which aims to prevent the developement of risk factors in a first place as a prevention strategy against cardiovascular diseases.

We found that each additional favorable health factor/behavior was associated with a 10% lower risk to develop dementia in the following decade.

These findings support the promotion if cardiovascular health to prevent the development of risk factors associated with dementia.  

MedicalResearch.com: What should readers take away from your report?

Response: When considering cardiovascular health, each additional improvement of the level of one or several health factors/behaviors is associated with a lower risk opf dementia and less cognitive decline.

MedicalResearch.com: What recommendations do you have for future research as a result of this work?

Response: Evaluate the change in risk factors over time as well was possible differential weighting of the factors in relation to dementia risk. 

Citation:

Samieri C, Perier M, Gaye B, et al. Association of Cardiovascular Health Level in Older Age With Cognitive Decline and Incident Dementia. JAMA. 2018;320(7):657–664. doi:10.1001/jama.2018.11499

Aug 21, 2018 @ 5:49 pm 

The information on MedicalResearch.com is provided for educational purposes only, and is in no way intended to diagnose, cure, or treat any medical or other condition. Always seek the advice of your physician or other qualified health and ask your doctor any questions you may have regarding a medical condition. In addition to all other limitations and disclaimers in this agreement, service provider and its third party providers disclaim any liability or loss in connection with the content provided on this website.