Immunology

Faulty DNA disposal system found to cause inflammation

Cells in the human body contain power-generating mitochondria, each with their own mtDNA—a unique set of genetic instructions entirely separate from the cell's nuclear DNA that mitochondria use to create life-giving energy. ...

Genetics

New insights into the healing capacity of the heart

A group of researchers at Baylor College of Medicine, the Texas Heart Institute and the University of Texas Health Science Center at Houston reveals today in the journal Genes & Development new insights into the recently ...

Medical research

How mitochondrial DNA defects cause inherited deafness

(Medical Xpress) -- Yale scientists have discovered the molecular pathway by which maternally inherited deafness appears to occur: Mitochondrial DNA mutations trigger a signaling cascade, resulting in programmed cell death. ...

Medical research

Once blamed for aging, ROS molecules may actually extend life

(Medical Xpress) -- In a new study, Yale University researchers have identified a pathway by which reactive oxygen species (ROS) molecules, which are usually implicated in the aging process due to their damage to DNA, can ...

Oncology & Cancer

Cholesterol activates signaling pathway that promotes cancer

Everyone knows that cholesterol, at least the bad kind, can cause heart disease and hardening of the arteries. Now, researchers at the University of Illinois at Chicago describe a new role for cholesterol in the activation ...

Inflammatory disorders

Study may explain why high-sugar diets can worsen IBD

Excess sugar hampers cells that renew the colon's lining in a mouse model of inflammatory bowel disease (IBD), according to a new study by University of Pittsburgh scientists.

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