Researchers discover new, treatable pathway known to cause hypertension in obese people

There's no question that as body weight increases, so too does blood pressure. Now, in a study of mice, researchers have revealed exactly which molecules are likely responsible for the link between obesity and blood pressure. Blocking one of these molecules — a signaling channel that's found in a tiny organ on the side of your neck — effectively lowers blood pressure in obese mice.

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Cellular senescence is associated with age-related blood clots

Cells that become senescent irrevocably stop dividing under stress, spewing out a mix of inflammatory proteins that lead to chronic inflammation as more and more of the cells accumulate over time. Researchers have identified 44 specific senescence-associated proteins that are involved in blood clotting, marking the first time that cellular senescence has been associated with age-related blood clots.

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New mechanism for dysfunctional insulin release identified

Researchers have identified a previously unknown mechanism that regulates release of insulin, a hormone that lowers blood glucose levels, from the beta cells of the pancreas. This mechanism is disrupted in type 2 diabetes. The scientists hope this finding will be used to develop new treatments against the disease.

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New method reveals how damage occurs in human biological cells due to mechanical fatigue

Researchers have developed a novel way to measure how mechanical fatigue affects biological cells. They also have established the important role of this effect in influencing physical properties of biological cells such as red blood cells (RBCs). This new technique assesses the mechanical integrity and fatigue behavior of RBCs using a general microfluidics method that incorporates amplitude-modulated electro-deformation. This method has important applications for mechanical fatigue studies in conjunction with other microenvironments related to health and materials engineering.

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Anemia may contribute to the spread of dengue fever

Mosquitoes are more likely to acquire the dengue virus when they feed on blood with low levels of iron, researchers report. Supplementing people's diets with iron in places where both iron deficiency anemia and dengue fever are a problem could potentially limit transmission of the disease, but there are risks.

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