Medical research

Researcher finds caffeine consumption, female infertility link

Caffeine reduces muscle activity in the Fallopian tubes that carry eggs from a woman's ovaries to her womb. "Our experiments were conducted in mice, but this finding goes a long way towards explaining why drinking caffeinated ...

Cardiology

Rhythm is it: Ion channels ensure the heart keeps time

The heartbeat is the result of rhythmic contractions of the heart muscle, which are in turn regulated by electrical signals called action potentials. Action potentials result from the controlled flow of ions into heart muscle ...

Cardiology

Developing next-generation biologic pacemakers

University of Houston associate professor of pharmacology Bradley McConnell is helping usher in a new age of cardiac pacemakers by using stem cells found in fat, converting them to heart cells, and reprogramming those to ...

Cardiology

Study shows how a modified pacemaker strengthens failing hearts

Johns Hopkins heart researchers are unraveling the mystery of how a modified pacemaker used to treat many patients with heart failure, known as cardiac resynchronization therapy (CRT), is able to strengthen the heart muscle ...

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