Cell

(redirected from pacemaker cell)
Also found in: Dictionary, Thesaurus, Medical, Financial, Encyclopedia.

CELL. A small room in a prison. See Dungeon.

References in periodicals archive ?

These human pacemaker cells were tested in rat hearts and were shown to function as a biological pacemaker, by activating the electrical impulses that trigger the contraction of the heart.

Scientists produce functional heart pacemaker cells

The heartbeat originates in the sinoatrial node of the heart's right upper chamber, where pacemaker cells are clustered.

Creating pacemaker cells provides hope

"Although we and others have created primitive biological pacemakers before, this study is the first to show that a single gene can direct the conversion of heart muscle cells to genuine pacemaker cells. The new cells generated electrical impulses spontaneously and were indistinguishable from native pacemaker cells," said Hee Cheol Cho, PhD., a Heart Institute research scientist.

Ordinary heart cells transformed into 'biological pacemakers'

However, it is not known whether the pacemaker cells have intrinsic signal generation or require visual input to be active.

Regeneration of the Rhopalium and the Rhopalial Nervous System in the Box Jellyfish Tripedalia cystophora

Cho, "Direct conversion of quiescent cardiomyocytes to pacemaker cells by expression of Tbx18," Nature Biotechnology, vol.

De Novo Human Cardiac Myocytes for Medical Research: Promises and Challenges

Eugenio Cingolani, MD, the director of the Heart Institute's Cardiogenetics-Familial Arrhythmia Clinic, said that in the future, pacemaker cells also could help infants born with congenital heart block.

Gene therapy used to create 'biological pacemaker'

In cardiac muscle, however, the increased cellular Ca concentration does not greatly exceed the on-off trigger level of 1 uM, and it always remains around this level despite the all-or-none nature of electrical signals given by pacemaker cells, although the reason behind this is unclear.

A Novel Insight into Cardiac Function: Development of a New Model of Spontaneous Oscillatory Contraction

These cells have gap junctions with smooth muscle cells which give way to nerve terminals; these these cells are called pacemaker cells.[sup.2]

Immunohistochemical and electron microscopic examination of Cajal cells in ureteropelvic junction obstruction

Idiopathic gastric perforation in neonates and abnormal distribution of intestinal pacemaker cells. J Paediatr Surg 2000;35:673-6.

IDIOPATHIC SPONTANEOUS POSTERIOR GASTRIC PERFORATION IN A PRESCHOOL CHILD - A RARITY

The heart has 10 billion cells but fewer than 10,000 of them are pacemaker cells, which generate electrical activity that spreads to other cardiac cells, making the organ contract rhythmically and pump blood.

Gene turns heart cells into pacemaker

The stimulant de-activates specialised pacemaker cells in the walls of the tubes.

SCIENTISTS may have discovered why [...]

As to our knowledge, this is the first study to investigate the relationship between nephrolithiasis and the dysfunctional peristaltic activity, which is produced by pelvic pacemaker cells in order to propagate urine into the ureters.

Doppler characteristics of the ureteric jet-streams in patients with non-obstructive nephrolithiasis: mechanism of dysfunctional propagation of the peristaltic activity from the pelvic pacemaker to the ureterovesical sphincter / Tikayici olmayan nefrolitiazis hastalarinda ureterik jet akimlarin Doppler ozellikleri: pelvik odaktan ureterovezikal sfinktere peristaltik aktivitenin disfonksiyonel ilerleme mekanizmasi