Category Biology/Biotechnology

CRISPR/Cas9 used to Control Genetic Inheritance in Mice

UC San Diego researchers used CRISPR/Cas9 to control genetic inheritance in mammals for the first time.
Credit: Cooper Lab, UC San Diego

Technology offers powerful new genetic tools for human disease research in rodents. Using active genetics technology, biologists have developed the world’s first CRISPR/Cas9-based approach to control genetic inheritance in a mammal. The achievement in mice lays the groundwork for further advances based on this technology, including biomedical research on human disease. Future animal models may be possible of complex human genetic diseases, like arthritis and cancer, which are not currently possible.

Scientists around the world have been using CRISPR/Cas9 in a variety of plant and animal species to edit genetic information...

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New 3D Nanoprinting strategy opens door to revolution in Medicine, Robotics

Engineers at the University of Maryland (UMD) have created the first 3D-printed fluid circuit element so tiny that 10 could rest on the width of a human hair. The diode ensures fluids move in only a single direction — a critical feature for products like implantable devices that release therapies directly into the body.
Credit: DOI: 10.1038/s41598-018-36727-z

UMD engineers demonstrate their approach by printing the smallest-known 3D microfluidic circuit element. Engineers at the University of Maryland (UMD) have created the first 3D-printed fluid circuit element so tiny that 10 could rest on the width of a human hair. The diode ensures fluids move in only a single direction – a critical feature for products like implantable devices that release therapies directly into the body.

The...

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Early Prediction of Alzheimer’s Progression: Blood protein

Blood cells (stock illustration).
Credit: © adimas / Fotolia

Years before symptoms of Alzheimer’s disease manifest, the brain starts changing and neurons are slowly degraded. Scientists at the German Center for Neurodegenerative Diseases (DZNE), the Hertie Institute for Clinical Brain Research (HIH) and the University Hospital Tuebingen now show that a protein found in the blood can be used to precisely monitor disease progression long before first clinical signs appear. This blood marker offers new possibilities for testing therapies. The study was carried out in cooperation with an international research team and published in the journal Nature Medicine.

“The fact that there is still no effective treatment for Alzheimer’s is partly because current therapies start much too late,” say...

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Cultivating 4D Tissues: The Self-curving Cornea

The cornea moulds itself into a bowl-like structure over the course of 5 days. A three component gel comprising collagen, corneal stromal cells and peptide amphiphiles (inner circle) is combined with a two component gel comprising collagen and corneal stromal cells (outer circle). When triggered with a serum containing growth factors the outer ring of cells contracts more than the inner ring resulting in the progressive curvature of the structure.
Credit: Screen shot captured from video copyright 2019, Wiley-VCH

Scientists at Newcastle University have developed a biological system which lets cells form a desired shape by moulding their surrounding material – in the first instance creating a self-curving cornea...

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