Viagra shows promise for use in bone marrow transplants

Researchers have demonstrated a new, rapid method to obtain donor stem cells for bone marrow transplants using a combination of Viagra and a second drug called Plerixafor. Bone marrow transplants, used mostly in the treatment of cancer, are life-saving procedures to restore the stem cells that generate new blood cells throughout a person's life.

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Protective mediators can help heal injured tendon cells by attacking inflammation

Tendon tears, both to the rotator cuff and Achilles heel, are common injuries, especially in aged individuals. Painful and disabling, they can adversely impact quality of life. New approaches are required to help patients suffering from chronic tendon injuries. A novel study identified mediators that promote resolution of inflammation as potential new therapeutics to push chronically injured tendons down an inflammation-resolving pathway.

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First cell map of developing human liver reveals how blood and immune system develops

In a world first, scientists have created the human developmental liver cell atlas that provides crucial insights into how the blood and immune systems develop in the fetus. It maps changes in the cellular landscape of the developing liver between the first and second trimesters of pregnancy, including how stem cells from the liver seed other tissues to support the high demand for oxygen needed for growth.

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Mapping normal breast development to better understand cancer

Breast cancer is one of the most prevalent cancers, and some forms rank among the most difficult to treat. Its various types and involvement of many different cells makes targeting such tumors difficult. Now, researchers have used a state-of-the-art technology to profile each cell during normal breast development in order to understand what goes wrong in cancer.

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The effectiveness of electrical stimulation in producing spinal fusion

Researchers performed a systematic review and meta-analysis of published data on the effect of electrical stimulation therapies on spinal fusion. They found significant improvement overall in the rates of bone fusion following a course of electrical stimulation in both preclinical (animal) and clinical (human) studies.

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Voltage gated calcium channels 'read' electric patterns in embryos to create cartilage and bone

Scientists have revealed how the electrical patterns formed within an embryo initiate a cascade of molecular changes that culminate in the development of cartilage and bone. Prior studies have shown these electrical patterns appear like blueprints of the tissues and organs that eventually take shape as the embryo matures. The new study demonstrates that voltage gated calcium channels 'read' the electrical pattern, setting off the expression of genes that guide differentiation to mature cells.

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From sleeping cell to assassin — how immune cells work

Scientists have carried out one of the most comprehensive studies into how immune cells sense and respond to their environment to fight infection and destroy tumors. The research team said the results provide important insights into how immune responses might be manipulated for the treatment of autoimmune diseases and cancer.

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Scientist designs 'express courier service' for immune cells

A researcher who is currently doing his post-doctoral training at Stanford University, has successfully invented a novel transfection method to deliver DNA into immune cells with minimal stress on these cells. This new technique is expected to boost DNA-based cancer immunotherapy by significantly improving the process of generating high-quality genetically modified immune cells.

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